CN110142593B

CN110142593B - Press mounting method for press mounting lead block of tire lead block press mounting machine

Info

Publication number: CN110142593B
Application number: CN201910532264.4A
Authority: CN
Inventors: 陈绍强; 蒲春涛; 陈映; 张劬
Original assignee: Changan Minsheng Apll Logistics Co ltd
Current assignee: Changan Minsheng Apll Logistics Co ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2021-03-05
Anticipated expiration: 2039-06-19
Also published as: CN110142593A

Abstract

The invention discloses a press-fitting method for a press-fitting machine for a tire lead block, which comprises the following steps: starting the tire conveying assembly to enable the conveying direction of the tire conveying assembly to be consistent with the conveying direction of the tire conveying assembly line; detecting whether the tire is conveyed to the lifting frame position; if the tire is detected to be conveyed to the lifting frame, controlling the tire conveying assembly to pause, and controlling the tire holding arm assembly to hold the tire tightly; controlling a lifting device to drive the lifting frame to move downwards to the position of the lead block press-fitting assembly; when the lifting frame moves downwards to the position of the lead block press-fitting assembly, suspending the lifting device and controlling the tire holding arm assembly to release the tire, and controlling the lead block press-fitting assembly to press the lead block onto a rim of the tire; when the press fitting of the lead block is completed, the tire holding arm assembly is controlled to hold the tire again, and the lifting device is controlled to operate to lift the lifting frame to the initial position.

Description

Press mounting method for press mounting lead block of tire lead block press mounting machine

Technical Field

The invention relates to the field of tire manufacturing, in particular to a press-fitting method for a press-fitting machine for a tire lead block

Background

The lead block mounted on the automobile tire is also called a balance block, and is an indispensable part on the automobile tire, and the purpose of mounting the lead block on the tire is to ensure that the wheel keeps a balanced state under high-speed rotation, so that the vehicle runs stably. That is, the purpose is to prevent the tire from vibrating under the high-speed running state, which affects the normal running of the vehicle, and this is the tire dynamic balance we often say. The lead block installation is mainly divided into two types, one type is attached to the inner ring of the rim, and the other type is externally hung on the outer edge of the rim. In the prior art, lead blocks are mainly installed on rims manually. Because the manual work dynamics is less, only can paste the lead block and press on the rim, in the vehicle use, the vehicle dynamic balance that often appears the lead block and drops and arouse reappears the problem, leads to wheel unbalance, distortion etc.. Therefore, after the vehicle runs for a certain distance or a certain time (generally, every half year), the vehicle needs to go to a 4S shop or a maintenance shop to perform a tire dynamic balance detection, so as to ensure that the vehicle runs more safely and reduce the abrasion of the tire and the vehicle suspension. Brings great inconvenience to users and is not beneficial to the protection of vehicles. Therefore, a professional lead block press-fitting machine for further press-fitting the lead block manually mounted to prevent the lead block from falling off is urgently needed. In the design of the lead block press-mounting machine, if the lead block press-mounting machine is in seamless connection with an automatic tire assembly line, a tire automatically enters the lead block press-mounting machine to be subjected to lead block press-mounting after passing through a lead block mounting station, and the problem which needs to be solved urgently is solved.

Disclosure of Invention

Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: provided is a press fitting method for a tire lead block press fitting machine capable of firmly press fitting a lead block on a rim.

In order to solve the technical problems, the invention adopts a technical scheme that: the lead block press-mounting machine is positioned between a lead block mounting station and a tire dynamic balance detection station, the tire lead block press-mounting machine comprises a lifting device, a lifting frame assembly and a lead block press-mounting assembly, the lifting frame assembly is mounted on the lifting device, the lead block press-mounting assembly is arranged below the lifting frame, the lifting frame assembly comprises a lifting frame, a tire holding arm assembly and a tire conveying assembly, the lifting frame is mounted on the lifting device and used for lifting a tire and lifting the tire, the tire holding arm assembly is arranged at the upper end of the lifting frame and used for holding the tire tightly, the tire conveying assembly is used for being connected with a tire conveying production line at one end to receive the tire conveyed to the lifting frame, and the tire conveying assembly is connected with a tire conveying production line at the other end to send the tire subjected; the press fitting method comprises the following steps: starting a tire conveying assembly to enable the conveying direction of the tire conveying assembly to be consistent with the conveying direction of the tire conveying assembly line; detecting whether a tire is conveyed to the crane position; if the tire is detected to be conveyed to the lifting frame position, controlling the tire conveying assembly to pause, and controlling the tire holding arm assembly to hold the tire tightly; controlling the lifting device to drive the lifting frame to move downwards to the position of the lead block press-fitting assembly; when the lifting frame moves downwards to the position of the lead block press-fitting assembly, suspending the lifting device and controlling the tire holding arm assembly to release the tire, and controlling the lead block press-fitting assembly to press the lead block onto a rim of the tire; when the press fitting of the lead block is finished, controlling the tire holding arm assembly to hold the tire again, and controlling the lifting device to operate to lift the lifting frame to an initial position; when the lifting frame returns to the initial position, the tire holding arm assembly is controlled to release a tire, and the tire conveying assembly is controlled to run again to convey the tire to a front tire conveying line, so that the tire conveying line is continuously conveyed forwards to the tire dynamic balance detection station.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the tire lead block press-fitting machine of the present invention.

Fig. 2 and 3 are schematic structural views of a base with a tire lifting device.

Fig. 4 and 5 are schematic structural views of the first driving wheel assembly.

Fig. 6 and 7 are schematic structural views of the second transmission wheel assembly.

Figure 8 is a schematic structural view of the crane assembly.

Figure 9 is a schematic view of the crane assembly mounted on the base.

Figure 10 is a top view of the crane assembly with the pallet assembly removed.

Figure 11 is a side view of the crane assembly.

Fig. 12 to 14 are schematic structural views of the lead block press-fitting assembly.

Fig. 15 is a flowchart of an embodiment of the press-fitting method of the tire lead block press-fitting machine of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 14, the tire lead block press-mounting machine of the present invention is installed between a lead block installation station and a tire dynamic balance detection station in a tire assembly line. In the tire assembling line, the lead block press-mounting machine is positioned between a lead block mounting station (not shown) and a tire dynamic balance detection station (not shown). After the tire is conveyed to the lead block mounting station, the lead block is pasted on a rim of the tire at the lead block mounting station, and then the tire is conveyed to the tire lead block press-mounting machine to press-mount the lead block on the rim, so that the lead block is more firmly mounted on the rim. And after the press fitting of the lead block is finished, conveying the tire to the tire dynamic balance detection station for tire dynamic balance detection. The tire lead block press-fitting machine of the present invention comprises: a lifting device 10; the lifting frame assembly 2 comprises a lifting frame 20 which is arranged on the lifting device 10 and used for lifting a tire and lifting the tire, a tire holding arm assembly 22 which is arranged at the upper end of the lifting frame 20 and used for holding the tire tightly, a tire conveying assembly 24 which is used for being connected with a tire conveying assembly line at one end to receive the tire conveyed to the lifting frame and connected with a tire conveying assembly line at the other end to send out the tire subjected to lead block press mounting; the lead block press-fitting assembly 3 is arranged below the lifting frame and used for press-fitting a lead block on a rim, the lead block press-fitting assembly 3 comprises a lead block press-fitting mechanism arranged at a position corresponding to the lead block on the rim of the tire, and a press-fitting surface of the lead block press-fitting mechanism faces the direction of the lead block; a tire sensing means (not shown) for sensing whether a tire arrives on the crane 20; and the control system (not shown in the figure) is used for controlling the tire conveying assembly to pause after the tire sensing device senses that the tire arrives on the lifting frame, controlling the tire holding arm assembly to hold the tire tightly, controlling the lifting device to descend the lifting frame assembly to the position of the lead block press fitting assembly, controlling the lead block press fitting mechanism of the lead block press fitting assembly to press fit the lead block towards the rim direction, controlling the lifting device to ascend the lifting frame to the initial position after the lead block press fitting is completed, and controlling the tire conveying assembly to work to convey the tire subjected to the lead block press fitting to the assembly line at the other end after the lifting frame ascends to the initial position.

In this embodiment, after the crane assembly 2 is installed on the lifting device 10, the first position (also referred to as the initial position or the upper limit position) of the crane assembly 2 and the tire assembly line (the conveying path for conveying the tire) are located at the same horizontal position. In the tire assembling line, the lead block press-mounting machine is positioned between a lead block mounting station (not shown) and a tire dynamic balance detection station (not shown). After the tire is conveyed to the lead block mounting station, the lead block is pasted on the inner ring of the rim of the tire at the lead block mounting station, then the tire is conveyed to the crane assembly 2 of the tire lead block press-fitting machine, the crane assembly 2 is downwards descended to the position of the lead block press-fitting assembly 3 through the lifting device 10, the lead block press-fitting assembly 3 is pressed to fit the lead block, and therefore the lead block is more firmly mounted on the rim. After the press fitting of the lead block is completed, the lifting device 10 enables the lifting frame assembly 2 to be lifted to the first position, and the tire is conveyed to the tire dynamic balance detection station to perform tire dynamic balance detection.

In the scheme, the tire induction device and the control system can enable the tire lead block press-fitting machine to automatically complete tire press-fitting, the tire induction device is used as a trigger condition, and the control system is informed to control the tire lead block press-fitting machine to perform the following control as long as the tire is induced to reach the preset position on the lifting frame: firstly, controlling the tire conveying assembly to pause; secondly, controlling the tire holding arm assembly to hold the tire tightly; controlling a lifting device to drive the lifting frame to descend to the position of the lead block press-fitting mechanism from the initial position, and controlling the tire holding arm assembly to release a tire; fourthly, controlling the lead block press-mounting mechanism to press-mount the lead block towards the lead block on the rim; fifthly, controlling the tire holding arm assembly to hold a tire tightly, and controlling the lifting device to lift the lifting frame to an initial position; and sixthly, controlling the tire holding arm assembly to release the tire, and controlling the tire conveying assembly to work so as to convey the tire subjected to lead block press mounting to the production line at the other end. The series of the control systems can be automatically controlled in a flow process, and related personnel only need to design corresponding parameters and strokes in advance.

In the scheme, the control system can control the lead block press-mounting mechanism to press and mount the lead block to start working according to a preset descending time parameter, control the lead block press-mounting mechanism to pause and the lifting frame to ascend according to the preset press-mounting time of the lead block press-mounting mechanism, control the tire conveying assembly to restart according to the preset ascending time (which can be consistent with the descending time), and the like. It will be appreciated that in other embodiments, the control system is not limited to the above-mentioned manner, and may also adopt a more intelligent manner, for example, a manner of setting the sensing unit as a trigger for controlling the corresponding component to perform the action (for example, setting a travel switch or a proximity switch to determine whether the position of the crane reaches the lead block press-mounting mechanism position or returns to the initial position, so as to control the lead block press-mounting mechanism and the tire conveying mechanism to perform the corresponding start-stop operation, etc.).

It can be understood that, in other embodiments, the control system and the tire sensing device are not essential components, and the switch or the driving button of the corresponding component may be manually controlled to start or stop without requiring automation, which is not described herein.

In this embodiment, the tire lead block press-fitting machine further includes a base, the base includes a first bottom plate 12 and a vertical base 14 disposed at a first end of the first bottom plate 12, the lifting device is disposed on the vertical base 14, and the lead block press-fitting assembly is disposed on the first bottom plate 12 and located at a position below the crane assembly 2.

In this embodiment, the tire induction device includes the infrared light unit that locates outside crane assembly one side and locate outside crane assembly another side and with the reflection of light unit relative, after the tire is carried to corresponding position on the crane, keep off in infrared light unit with reflect light unit between, infrared light unit does not receive reflect light unit's reflection of light time then send the sensing signal to control system is in order to inform control system tire arrives on the crane. The infrared light unit can be arranged on the first base plate and positioned outside one side of the lifting frame assembly, and the light reflecting unit can be arranged on the vertical seat and positioned outside the other side of the lifting frame assembly. The infrared unit and the reflection unit are diversified in position as long as the infrared unit and the reflection unit are oppositely positioned outside two sides of the lifting frame assembly and are matched with the tire placed on the lifting frame in height (namely the top surface of the tire is higher than the infrared unit and the reflection unit, and the bottom surface of the tire is lower than the infrared unit and the reflection unit). It will be appreciated that in other embodiments, the tire sensing device may be another sensor, as long as it can detect an object in front of the vehicle and send a corresponding detection signal to the control system.

With respect to the base 1:

the base 1 is used for installing a lead block press-fitting assembly 3 and a lifting frame assembly 2 of a lead block press-fitting machine. The base 1 comprises a first bottom plate 12 (the first bottom plate 12 may be a rectangular plate, a circular plate, a special-shaped plate, etc., in this embodiment, the rectangular plate), a stand 14 erected at a first end of the first bottom plate 12, and a lifting device 10 arranged on the stand 14 for lifting the crane assembly. The lifting frame assembly 2 is arranged on the lifting device 10 to be driven by the lifting device 10 to lift. The lead block press-fitting assembly 3 is installed at a position on the first base plate 12 where the vertical seat 14 is not arranged, and the lead block press-fitting assembly 3 is located right below the lifting device 10. The side of the vertical seat 14 close to the lead block press-fitting assembly 3 is referred to as the front side, and the side far from the lead block press-fitting assembly 3 is referred to as the back side. After the tire is transferred to the lead block press-fitting assembly 3 by the lifting frame assembly 2, the lead block press-fitting assembly 3 presses the lead block on the rim.

The lifting device 10 comprises a first driving wheel assembly 101 arranged at the lower end of the vertical seat 14, a second driving wheel assembly 102 arranged at the upper end of the vertical seat 14 and positioned right above the first driving wheel assembly 101, a conveying belt 103 sleeved on the two driving wheel assemblies, a first connecting piece 104 arranged on the conveying belt 103 and used for being connected with a lifting frame of the lifting frame assembly 2, a first linear guide rail component 105 vertically arranged on the vertical seat 14 and positioned on the first side of the conveying belt 103, and a second linear guide rail component 106 arranged on the vertical seat 14 and positioned on the second side of the conveying belt 103. In this embodiment, in order to facilitate installation of the driving motor, the first driving wheel assembly 101 disposed at the lower end of the vertical seat 14 is a driving wheel assembly connected to an output shaft of the driving motor, and the second driving wheel assembly 101 disposed at the upper end of the vertical seat 14 is a driven wheel assembly. It is understood that in other embodiments, the second driving wheel assembly 102 disposed at the upper end of the vertical base 14 can be designed as a driving wheel assembly, and the first driving wheel assembly 101 disposed at the lower end of the vertical base 14 can be designed as a driven wheel assembly. The lifting frame 20 is mounted on the lifting device 10 through the first connecting member 104.

Preferably, the first driving wheel assembly 101 includes a driving shaft sleeve 1011, a first deep groove ball bearing 1012 disposed at the rear end of the driving shaft sleeve 1011, a second deep groove ball bearing 1013 disposed at the front end of the driving shaft sleeve 1011, a driving shaft 1014 passing through the first deep groove ball bearing 1012 and the second deep groove ball bearing 1013, and a first synchronous pulley 1015, wherein the front end of the driving shaft 1014 is exposed at the front end surface of the driving shaft sleeve 1011, the rear end of the driving shaft 1014 is exposed at the rear end surface of the driving shaft sleeve 1011, and the first synchronous pulley 1015 is sleeved at the front end of the driving shaft 1014.

Preferably, the driving shaft sleeve 1011 includes a driving shaft sleeve body 1011a and a first mounting portion 1011b annularly disposed on the outer periphery of the driving shaft sleeve body 1011a, and a plurality of driving shaft sleeve mounting holes 1011c are disposed on the first mounting portion 1011b and spaced from each other. Further, a first bearing cap 1016 is disposed at the front end of the driving sleeve body 1011a, and the first bearing cap 1016 is inserted into the driving shaft 1014 and is mounted to the front end of the driving sleeve body 1011a by a plurality of first mounting bolts. A first plain key 1017 is provided on the outer peripheral surface of the drive shaft 1014 at a position near the front end thereof, a drive shaft stopper 1018 having a third through hole is provided on the front end surface of the drive shaft 1014, and a second mounting bolt is screwed to the drive shaft 1014 through the third through hole of the drive shaft stopper 1018.

Preferably, the second transmission wheel assembly 102 includes a driven shaft sleeve 1021, a third deep groove ball bearing 1022 disposed at the rear end of the driven shaft sleeve 1021, a fourth deep groove ball bearing 1023 disposed at the front end of the driven shaft sleeve 1021, a driven shaft 1024 disposed in the third deep groove ball bearing 1022 and the fourth deep groove ball bearing 1023 in a penetrating manner, and a second synchronous pulley 1025, wherein the front end of the driven shaft 1024 is exposed out of the front end surface of the driven shaft sleeve 1021, and the second synchronous pulley 1025 is sleeved at the front end of the driven shaft 1024.

Preferably, the driven shaft sleeve 1021 comprises a driven shaft sleeve body 1021a and a second installation part 1021b annularly arranged on the periphery of the driven shaft sleeve body 1021a, and the second installation part 1021b is provided with a plurality of driven shaft sleeve installation holes spaced from each other. Further, a second bearing cover 1026 is disposed at the front end of the driven shaft sleeve body 1021a, and the second bearing cover 1026 is disposed on the driven shaft 1024 in a penetrating manner and is mounted at the front end of the driven shaft sleeve body 1021a through a plurality of third mounting bolts. A second common flat key 1027 is disposed on the outer peripheral surface of the driving shaft 1014 near the front end thereof, a driven shaft retainer 1028 having a fourth through hole is disposed on the front end surface of the driven shaft 1024, and a fourth mounting bolt is screwed to the front end of the driven shaft 1024 after passing through the fourth through hole of the driven shaft retainer 1028.

It will be appreciated that in other embodiments, the base is not limited to the above-described configuration. In the embodiment, the lead block press-fitting assembly is positioned right below the lifting frame assembly, so that the vertical seat of the base needs to be vertical to the horizontal plane, namely, the base is vertically arranged.

Regarding crane assembly 2:

specifically, the crane assembly 2 is mounted on a lifting device 10 on the base 1, and can be driven by the lifting device 10 to move up and down (ascend and descend). The lifting frame assembly 2 comprises a lifting frame 20 arranged on the lifting device 10, a tire arm-clasping assembly 22 arranged at the upper end of the lifting frame 20 and a tire conveying assembly 24. The lifting device 10 may be similar to any existing lifting structure capable of lifting and lowering an object or a component, the lifting device 10 may be a vertically arranged lifting device to lift or lower the crane assembly 2, and the crane assembly 2 may also be a combined structure of a driving motor or a cylinder, a transmission gear, a transmission belt, etc. to lift or lower the crane assembly 2. When the lifting device 10 is a jacking device, the base 1 can be omitted, and the jacking device can be directly fixed on the corresponding ground or the corresponding working table, and the like.

With regard to the crane 20:

the lifting frame 20 comprises a back frame 201 connected with the first connecting piece 104 of the lifting device 10, a top frame 202 arranged at the top end of the back frame 201, a side frame connected between the back frame 201 and the top frame 202, and a second connecting piece 204 arranged on the back frame 201. The back frame 201 is connected to the lifting device 10. Specifically, the back frame 201 is connected to the lifting device 10 through the second connecting member 204. More specifically, the second connecting element 204 is connected to the first connecting element 104, the first linear guide assembly 105, and the second linear guide assembly 106 of the lifting device, and the second connecting element 204 includes a first connecting block 2041 disposed on the back frame at a position corresponding to the first connecting element 104, a second connecting block 2042 disposed on the back frame 201 at a position corresponding to the first linear guide assembly 105, and a third connecting block 2043 disposed on the back frame 201 at a position corresponding to the second linear guide assembly 106. The tire arm assembly 22 and the tire transport assembly 24 are disposed on the top frame 202. It will be appreciated that the side frames serve primarily to connect and reinforce the back and top frames, and in other embodiments the side frames may be left out with strength assurance.

The back frame 201 is a frame structure, including but not limited to a rectangular frame structure and a circular frame structure. The back frame 201 comprises an outer frame and a connecting frame arranged in the outer frame. The outer frame is formed by vertically connecting and enclosing a first vertical rod 2011, a first top cross rod 2012, a second vertical rod 2013 and a bottom cross rod 2014 end to end, so that the outer frame is in a rectangular frame shape. The link is whole to be the H type, including being parallel to each other and connecting in third pole setting 2015 and fourth pole setting 2016, both ends between first top horizontal pole 2012 and end horizontal pole 2014 respectively with the connecting rod 2017 that third pole setting 2015 and fourth pole setting 2016 are connected. First connecting block 2041 is located on the connecting rod 2017 corresponding to first connecting piece 104 position department, second connecting block 2042 is located on the third pole setting 2015 corresponding to the slider position department on the first linear guide rail, third connecting block 2043 is located on the fourth pole setting 2016 corresponding to the slider position department on the second linear guide rail. The first connecting block 2041 is fixedly connected to the first connecting member 104 of the lifting device 10 (may be fixedly connected by means of rivets, bolts, etc.), and the second connecting block 2042 and the third connecting block 2043 are both fixedly connected to corresponding sliders (may be fixedly connected by means of rivets, bolts, etc.). In this embodiment, the two sliders on the first linear guide rail and the second linear guide rail are both, and therefore, the second connecting block 2042 and the third connecting block 2043 are both two, and the two second connecting blocks 2042 are respectively disposed at the upper end and the lower end of the third vertical rod 2015, and the two third connecting blocks 2043 are respectively disposed at the upper end and the lower end of the fourth vertical rod 2016. It is understood that, in other embodiments, the back frame 201 is not limited to the above-mentioned structure, as long as the crane 20 can be connected to the lifting device 10. For example, the back frame 201 may be directly a back plate, and the second connecting member 204 is disposed on the back plate at a position corresponding to the first connecting member 104. In other embodiments, the lifting frame 20 may also directly adopt a square box structure, as long as the back of the lifting frame is provided with the second connecting piece connected with the first connecting piece, and the top of the lifting frame can be provided with the tire arm assembly and the tire conveying assembly.

The advantages of the above-mentioned back frame 201 designed as a frame structure are: firstly, weight reduction; secondly, the manufacturing cost is saved; thirdly, the relevant personnel can observe the operation condition of the lifting device 10 through the back frame 201; and fourthly, if the lifting device 10 has problems, the maintenance of workers is facilitated, and the lifting frame 20 does not need to be taken down.

The top frame 202 comprises a top frame body and a supporting plate assembly embedded in the top frame body, the top frame body is horizontally arranged at the top end of the back frame 201, and a central hole 2025a is formed in the supporting plate assembly. The top frame body is of a frame structure and comprises a second top cross bar 2021 parallel to the first top cross bar 2012 and on the same plane, and a first top longitudinal bar 2022 and a second top longitudinal bar 2023 vertically connected to two ends of the second top cross bar 2021, respectively, wherein one ends of the second top longitudinal bar 2023 and the second top longitudinal bar 2023 far away from the second cross bar are vertically connected to two ends of the first top cross bar 2012, respectively.

The supporting plate assembly comprises a first supporting plate 2024, a second supporting plate 2025 and a third supporting plate 2026 which are sequentially arranged in the top frame 202 from back (the direction close to the back frame 201) to front (the direction far away from the back frame 201). The first support plate 2024, the second support plate 2025 and the third support plate 2026 fill up the middle space of the top frame body, so that the tire can be placed on the middle space. The center hole is disposed in the middle of the second supporting plate 2025, and the center of the center hole 2025a coincides with the centers of the supporting plate assembly and the top frame 202 (i.e., the center of the center hole 2025a, the center of the supporting plate assembly, and the center of the top frame 202 are all on the same center point). The aperture of the central hole 2025a is larger than the outer diameter of a lead block press-fitting mechanism of the tire lead block press-fitting machine, and when the tire is conveyed onto the supporting plate assembly, the lifting frame assembly 2 moves to the position of the lead block press-fitting assembly 3 from right below (towards the direction of the lead block press-fitting assembly 3), the tire positioning mechanism of the lead block press-fitting assembly 3 can protrude upwards from the central hole 2025a to be located at the same horizontal position as the tire. Therefore, the tire positioning mechanism of the lead block press-fitting assembly 3 can smoothly press-fit the lead block on the inner ring of the rim outwards.

The side frames include a first side bar 2031 connected to a first side of the top frame 202 and the back frame 201 and a second side bar 2032 connected to a second side of the top frame 202 and the back frame 201. The first side rod 2031 is connected between the first top vertical rod 2022 and the first vertical rod 2011, and the second side rod 2032 is connected between the second top vertical rod 2023 and the second vertical rod 2013. Specifically, the upper end of the first side rod 2031 is connected to the middle position of the first vertical rod 2022, and the lower end thereof is connected to the lower end of the first vertical rod 2011. The upper end of the second side rod 2032 is connected to the middle position of the second top vertical rod 2023, and the lower end is connected to the lower end of the second vertical rod 2013. Thus, the first side rod 2031, the first upright 2011 and the first top vertical rod 2022 form a triangle, and the second side rod 2032, the second upright 2013 and the second top vertical rod 2023 form a triangle, so as to improve the strength of the reinforcement frame.

With respect to the tire arm assembly 22:

the tire clasping arm assembly 22 comprises a first tire clasping arm arranged on one side of the top frame 202 and a second tire clasping arm symmetrically arranged on the other side of the top frame 202. In this embodiment, the first tire embracing arm and the second tire embracing arm are respectively disposed on a first side of the top frame 202 close to the back frame 201 and a second side of the top frame 202 far from the back frame 201. The first tire embracing arm is specifically arranged on the first top cross bar 2012, and the second tire embracing arm is specifically arranged on the second top cross bar 2021 in a symmetrical manner. It is understood that, in other embodiments, the first tire embracing arm and the second tire embracing arm may be respectively disposed on the other two sides of the top cross frame (i.e., on the first top vertical bar 2022 and the second top vertical bar 2023), as long as they are disposed on the two opposite sides of the top frame 202 in an axisymmetric manner. Wherein:

the first tire embracing arm includes a first rotating arm 221, a second rotating arm 222, and a first rotation driving mechanism. The first rotating arm 221 and the second rotating arm 222 are disposed on a first side of the top frame 202 at a certain distance from each other, and specifically, the first rotating arm 221 and the second rotating arm 222 are disposed on the first top cross bar 2012 at a certain distance from each other. The first rotating arm 221 and the second rotating arm 222 have the same structure, the first rotating arm 221 and the second rotating arm 222 are symmetrically disposed on two sides of a perpendicular bisector of the first top rail 2012, the perpendicular bisector of the first top rail 2012 passes through the center of the center hole 2025 a. Wherein:

the first rotating arm 221 includes a first rotating shaft 2211, a first connecting rod 2212 arranged horizontally, and a first arm-clasping body 2213 arranged vertically. It will be appreciated that the lateral arrangement described above includes not only a horizontal-like lateral arrangement, but also a lateral arrangement with some inclination. The first rotating shaft 2211 is disposed on the first side of the top frame 202, specifically on the first top cross bar 2012, and the upper end of the first rotating shaft 2211 protrudes out of the upper surface of the first top cross bar 2012 and the lower end protrudes out of the lower surface of the first top cross bar 2012. The rotating end of the first link 2212 is connected to the upper end of the first rotating shaft 2211, and the connecting end of the first link 2212 is connected to the lower end of the first arm-embracing body 2213. First armful arm body 2213 includes the second connecting rod of vertical setting and locates first portion of enclasping on the second connecting rod, the lower extreme of second connecting rod with first connecting rod 2212's link is connected the upper end of second connecting rod is provided with a first installation piece the lower extreme of second connecting rod just is located position department under the first installation piece is provided with a second installation piece. The first portion of holding tightly includes a first stand and wears to locate first pole of holding tightly on the first stand, the upper end of first stand with first installation piece is connected, the lower extreme with the second installation piece is connected. In order to make first cohesion post can adjust from top to bottom, first stand is the external screw thread post, first cohesion portion be with external screw thread post screw-thread fit's internal thread post. In order to prevent the first clasping column from damaging the tire when clasping the tire, an elastic buffer layer is arranged on the outer peripheral surface of the first clasping column, and the elastic buffer layer can be a polyurethane buffer layer or made of other plastics with buffer performance.

The structure of the second rotating arm 222 is the same as that of the first rotating arm 221, and the second tire embracing arm includes a second rotating shaft 2221, a third connecting rod 2222 arranged horizontally, and a second embracing arm body 2223 arranged vertically. It will be appreciated that the lateral arrangement described above includes not only a horizontal-like lateral arrangement, but also a lateral arrangement with some inclination. The second rotating shaft 2221 is disposed on the first side of the top frame 202, specifically on the first top cross bar 2012, and the upper end of the second rotating shaft 2221 protrudes out of the upper surface of the first top cross bar 2012 and the lower end protrudes out of the lower surface of the first top cross bar 2012. The rotating end of the third connecting rod 2222 is connected to the upper end of the second rotating shaft 2221, and the connecting end of the third connecting rod 2222 is connected to the lower end of the second arm-embracing body 2223. Arm body 2223 is embraced to the second includes the fourth connecting rod of vertical setting and locates portion is embraced tightly to the second on the fourth connecting rod, the lower extreme of fourth connecting rod with third connecting rod 2222's link is connected the upper end of fourth connecting rod is provided with a third installation piece the lower extreme of fourth connecting rod just is located position department under the third installation piece is provided with a fourth installation piece. The second clasping portion comprises a second stand column and a second clasping column arranged on the second stand column in a penetrating mode, the upper end of the second stand column is connected with the third mounting block, and the lower end of the second stand column is connected with the fourth mounting block. In order to make the second hug closely the post and can adjust from top to bottom, the second stand is the external screw thread post, the second portion of hugging closely be with external screw thread post screw-thread fit's internal thread post. In order to prevent the second clasping column from damaging the tire when clasping the tire, an elastic buffer layer is arranged on the outer peripheral surface of the second clasping column, and the elastic buffer layer can be a polyurethane buffer layer or made of other plastics with buffer performance.

The first rotation driving mechanism includes a first main gear provided at a lower end of the first rotation shaft 2211, a first slave gear provided at a lower end of the second rotation shaft 2221 and engaged with the first main gear, and a first driving member connected to the first main gear to drive the first main gear to rotate. The first driving part may be a driving motor or a driving cylinder. When the first driving component is a driving motor, an output shaft of the driving motor may be directly connected to a lower end of the first rotating shaft 2211, and the first rotating shaft 2211 drives the first master gear to rotate, so as to transmit the rotation to the first slave gear, so as to drive the first slave gear to rotate in an opposite direction, and thus, the first and second clasping arms clasping the tire inwards or expand outwards to loosen the tire. The output shaft of the driving motor may also be directly connected to the first main gear to directly drive the first main gear to rotate, so as to drive the first rotating shaft 2211 to rotate in a first direction, and to rotate the second rotating shaft 2221 in a direction opposite to the first rotating shaft 2211. When the first driving component is a driving cylinder, the driving cylinder is transversely arranged, a deflector rod connected with the periphery of the first main gear is arranged on an output shaft of the driving cylinder, when the output shaft of the driving cylinder is ejected outwards, the first main gear is driven to rotate in one direction (less than one circle) to drive the first driven gear to rotate in the opposite direction (less than one circle), and when the output shaft of the driving cylinder is retracted inwards, the deflector rod is reset, so that the arm can hold the tire inwards or release the tire outwards.

The second tire embracing arm includes a third rotating arm 224, a fourth rotating arm 225, and a second rotation driving mechanism. The third rotating arm 224 and the fourth rotating arm 225 are disposed on the second side of the top frame 202 at a certain distance, and specifically, the third rotating arm 224 and the fourth rotating arm 225 are disposed on the second top cross bar 2021 at a certain distance. The third and fourth

rotating arms

224 and 225 have the same structure, and the third and fourth

rotating arms

224 and 225 are symmetrically disposed on both sides of the perpendicular bisector of the second top rail 2021 with the perpendicular bisector as a symmetry axis, and the perpendicular bisector of the second top rail 2021 passes through the center of the center hole 2025 a. Wherein:

the third rotating arm 224 includes a third rotating shaft 2241, a horizontally disposed fifth connecting rod 2242, and a vertically disposed third arm holding body 2243. It will be appreciated that the lateral arrangement described above includes not only a horizontal-like lateral arrangement, but also a lateral arrangement with some inclination. The third rotating shaft 2241 is disposed through the second side of the top frame 202, specifically on the second top cross bar 2021, and the upper end of the third rotating shaft 2241 protrudes out of the upper surface of the second top cross bar 2021, and the lower end protrudes out of the lower surface of the second top cross bar 2021. The rotation end of the fifth connecting rod 2242 is connected to the upper end of the third rotation shaft 2241, and the connecting end of the fifth connecting rod 2242 is connected to the lower end of the third arm holding body 2243. Arm body 2243 includes the sixth connecting rod 2243a of vertical setting and locates the portion of hugging closely of third on the sixth connecting rod 2243a, the lower extreme of sixth connecting rod 2243a with the link of fifth connecting rod 2242 is connected the upper end of sixth connecting rod 2243a is provided with a fifth installation piece 2243b the lower extreme of sixth connecting rod 2243a just is located position department under fifth installation piece 2243b is provided with a sixth installation piece 2243 c. The third portion of hugging closely includes a third stand 2243d and wears to locate third pole 2243e of hugging closely on the third stand 2243d, the upper end of third stand 2243d with fifth installation piece 2243b is connected, the lower extreme with sixth installation piece 2243c is connected. In order to make the third hold column 2243e to adjust from top to bottom, third stand 2243d is the external screw thread post, the third hold tightly the portion for with external screw thread post screw-thread fit's internal thread post. In order to prevent the third clasping columns 2243e from damaging the tire when clasping the tire, an elastic buffer layer is provided on the outer circumferential surface of the third clasping columns 2243e, and the elastic buffer layer may be made of polyurethane or other plastic having a buffering property.

The fourth rotating arm 225 has the same structure as the third rotating arm 224. The fourth rotating arm 225 comprises a fourth rotating shaft, a seventh connecting rod arranged transversely, and a fourth arm-embracing body arranged vertically. It will be appreciated that the lateral arrangement described above includes not only a horizontal-like lateral arrangement, but also a lateral arrangement with some inclination. The fourth rotating shaft is disposed through the second side of the top frame 202, specifically on the second top cross bar 2021, and an upper end of the fourth rotating shaft protrudes out of an upper surface of the second top cross bar 2021 and a lower end thereof protrudes out of a lower surface of the second top cross bar 2021. The rotating end of the seventh connecting rod is connected with the upper end of the fourth rotating shaft, and the connecting end of the seventh connecting rod is connected with the lower end of the fourth arm-embracing body. The fourth is embraced the arm body and is included the vertical eighth connecting rod that sets up and locate fourth on the eighth connecting rod is embraced tight portion, the lower extreme of eighth connecting rod with the link of seventh connecting rod is connected the upper end of eighth connecting rod is provided with a seventh installation piece the lower extreme of eighth connecting rod just is located position department under the seventh installation piece is provided with an eighth installation piece. The fourth portion of hugging closely includes a fourth stand and wears to locate fourth pole of hugging closely on the fourth stand. In order to make the fourth hold the post and can adjust from top to bottom, the fourth stand is the external screw thread post, the fourth portion of holding tightly be with external screw thread post screw-thread fit's internal thread post. In order to prevent the fourth clasping column from damaging the tire when clasping the tire, an elastic buffer layer is arranged on the outer peripheral surface of the fourth clasping column, and the elastic buffer layer can be a polyurethane buffer layer or made of other plastics with buffer performance.

The second rotation driving mechanism includes a second master gear provided at a lower end of the third rotation shaft 2241, a second slave gear provided at a lower end of the fourth rotation shaft and engaged with the second master gear, and a second driving member connected to the second master gear to drive the second master gear to rotate. The second driving part may be a driving motor or a driving cylinder. When the second driving component is a driving motor, the output shaft of the driving motor can be directly connected with the lower end of the third rotating shaft 2241, and the third rotating shaft 2241 drives the second main gear to rotate, so as to transmit to the second slave gear, so as to drive the second slave gear to rotate in the opposite direction, and thus, the third and fourth holding arms can hold the tire inwards or unfold outwards to loosen the tire. The output shaft of the driving motor may also be directly connected to the second main gear to directly drive the second main gear to rotate, so as to drive the third rotating shaft 2241 to rotate in the first direction, and to rotate the fourth rotating shaft in the direction opposite to the third rotating shaft 2241. When the second driving component is a driving cylinder, the driving cylinder is transversely arranged, a deflector rod connected with the periphery of the second main gear is arranged on an output shaft of the driving cylinder, when the output shaft of the driving cylinder is ejected outwards, the second main gear is driven to rotate in one direction (less than one circle) to drive the second driven gear to rotate in the opposite direction (less than one circle), and when the output shaft of the driving cylinder is retracted inwards, the deflector rod is reset, so that the arm can hold the tire inwards or loosen the tire outwards.

Above-mentioned tire embraces arm assembly 22, its first tire embraces the arm and the structure of second tire embraces the arm the same, and the symmetry sets up on the relative both sides of roof-rack 202, and each group tire embraces the arm and includes two perpendicular bisectors that use the corresponding side of roof-rack 202 as the symmetry axis again, and the symmetry sets up the both sides at this symmetry axis, and the symmetry axis crosses the center of centre bore 2025a, like this can be when embracing tightly the position of both sides the same, the dynamics of acting on the tire is also the same, can effectively embrace the tire tightly.

With respect to the tire delivery assembly 24:

the tire conveying assembly 24 is arranged at the top end of the lifting frame 20, and is specifically arranged on the top frame 202 of the lifting frame 20. The tire conveying assembly 24 comprises a first transmission shaft assembly arranged at one end, close to the lead block mounting station, of the top frame 202, a second transmission shaft assembly arranged at one end, close to the tire dynamic balance detection station, of the top frame 202, a first conveying mechanism 243 sleeved on the first transmission shaft assembly and the second transmission shaft assembly and close to one side of the back frame 201 of the lifting frame 20, and a second conveying mechanism 244 sleeved on the first transmission shaft assembly and the second transmission shaft assembly and far away from one side of the back frame 201. Preferably, the tire conveying assembly 24 may further include an auxiliary transfer mechanism 245 disposed on the pallet assembly of the crane assembly 2 and located between the first transfer mechanism 243 and the second transfer mechanism 244. Wherein:

in this embodiment, the first transmission shaft assembly is a driving shaft assembly 241, and the second transmission shaft assembly is a driven shaft assembly 242.

The driving shaft assembly 241 comprises a first vertical bearing seat 2411 and a second vertical bearing seat 2412 which are arranged at one end of the top frame 202 close to the lead block mounting station, a driving shaft 2413 which penetrates through the first vertical bearing seat 2411 and the second vertical bearing seat 2412, and a driving shaft driving device 2414 which is connected with the driving shaft 2413 to drive the driving shaft to rotate. The first vertical bearing block 2411 and the second vertical bearing block 2412 are spaced apart from each other by a predetermined distance. Specifically, the first upright bearing block 2411 is disposed on the first top vertical rod 2022 of the top frame 202 at a position close to one side of the back frame 201 of the lifting frame 20, and the second upright bearing block 2412 is disposed on the first top vertical rod 2022 at a side far from the back frame 201. Further, the first upright bearing seat 2411 and the second upright bearing seat 2412 are respectively located at two sides of the second supporting plate 2025. The driving shaft driving device 2414 is a driving motor, the driving motor is arranged at a position corresponding to the driving shaft 2413 on the back frame 201 of the lifting frame 20, and an output shaft of the driving motor is connected with one end of the driving shaft 2413 so as to drive the driving shaft 2413 to rotate around the axis of the driving shaft 2413.

The driven shaft assembly 242 includes a third upright bearing seat 2421, a fourth upright bearing seat 2422 and a second driven shaft 2423, wherein the third upright bearing seat 2421 and the fourth upright bearing seat 2422 are arranged at one end of the top frame 202, which is close to the dynamic balance installation station, and the second driven shaft is arranged between the third upright bearing seat 2421 and the fourth upright bearing seat 2422 in a penetrating manner. The third and fourth

upright bearing housings

2421 and 2422 are spaced apart from each other by a predetermined distance. Specifically, the third upright bearing seat 2421 is disposed on the second top vertical rod 2023 of the top frame 202 at a position close to one side of the back frame 201 of the lifting frame 20, and the fourth upright bearing seat 2422 is disposed on the second top vertical rod 2023 at a side far from the back frame 201. Further, the third upright bearing 2421 and the fourth upright bearing 2422 are respectively located on two sides of the second supporting plate 2025, such that the first transmission mechanism 243 and the second transmission mechanism 244 are just located on two sides of the second supporting plate 2025 (i.e. the side close to the back frame 201 and the side far from the back frame 201).

In this embodiment, the driving shaft assembly 241 further includes a driving shaft baffle 2415, and the second driven shaft 2423 assembly 242 further includes a driven shaft baffle 2424. The driving shaft baffle 2415 comprises a first vertical mounting plate 2415a connected with the first vertical ejecting rod 2022, a first inclined joint plate 2415b with the lower end connected with the upper end of the first vertical mounting plate 2415a and the upper end inclined upwards towards the second vertical ejecting rod 2023, and a first transverse shielding plate 2415c connected with the upper end of the first inclined joint plate 2415b, wherein a first through hole for a first bolt to pass through is formed in the first vertical mounting plate 2415a, and the first bolt passes through the first through hole and then penetrates into the first vertical ejecting rod 2022 from the outer side surface of the first vertical ejecting rod 2022, so that the first vertical mounting plate 2415a is mounted on the first vertical ejecting rod 2022. The driven shaft baffle 2424 comprises a second vertical mounting plate connected with the second top longitudinal bar 2023, a second inclined joint plate with the lower end connected with the upper end of the second vertical mounting plate and the upper end inclined upwards towards the first top longitudinal bar 2022, and a second transverse baffle plate connected with the upper end of the second inclined joint plate, wherein a second through hole for a second bolt to pass through is arranged on the second vertical mounting plate, and the second bolt passes through the second through hole and then penetrates into the second top longitudinal bar 2023 from the outer side surface of the second top longitudinal bar 2023, so that the second vertical mounting plate is mounted on the second top longitudinal bar 2023.

The first transmission mechanism 243 includes a first sprocket assembly 2431 disposed on the driving shaft 2413 at a position close to one side of the back frame 201, a second sprocket assembly 2432 disposed on the second driven shaft 2423 at a position corresponding to the first sprocket assembly 2431, and a first chain 2433 sleeved on the first sprocket assembly 2431 and the second sprocket assembly 2432. The second transmission mechanism 244 includes a third sprocket assembly 2441 disposed on the driving shaft 2413 at a position far from a side of the back frame 201, a fourth sprocket assembly 2442 disposed on the second driven shaft 2423 at a position corresponding to the third sprocket assembly 2441, and a second chain 2443 sleeved on the third sprocket assembly 2441 and the fourth sprocket assembly 2442.

The auxiliary transfer mechanism 245 includes a plurality of ball transfer units 2451 (bulls eyes) spaced apart from each other on the pallet assembly at a position between the first transfer mechanism 243 and the second transfer mechanism 244. Specifically, a plurality of ball transfer units 2451 are disposed on the second support plate 2025. Of the ball transfer assemblies 2451, a portion of the ball transfer assemblies 2451 are disposed on the second support plate 2025 near the location between the lead mounting station and the center hole 2025a, and the remaining portion of the ball transfer assemblies 2451 are disposed on the second support plate 2025 near the location between the tire dynamic balance detection station and the center hole 2025 a.

The auxiliary conveying mechanism 245 further includes a first mounting bracket 2452 disposed at an end of the top frame 202 near the lead block mounting station, a first lifting mechanism (not shown) disposed on the first mounting bracket 2452, a second mounting bracket 2453 disposed at an end of the top frame 202 near the tire dynamic balance detection station, and a second lifting mechanism (not shown) disposed on the second mounting bracket 2453. In this embodiment, there are two first mounting brackets 2452 and two second mounting brackets 2453, two first mounting brackets 2452 are respectively mounted on the first top vertical bar 2022 of the top frame 202 at positions corresponding to two corners on the rectangular second supporting plate 2025, and two second mounting brackets 2453 are respectively mounted on the second top vertical bar 2023 of the top frame 202 at positions corresponding to the other two corners on the rectangular second supporting plate 2025. In this embodiment, the first lifting mechanism is two first lifting cylinders respectively mounted on the two first mounting brackets 2452, and output shafts of the two first lifting cylinders are upward and fixed on the second supporting plate 2025. The second lifting mechanism is two second lifting cylinders respectively mounted on the two second mounting brackets 2453, and output shafts of the two second lifting cylinders are upward and fixed on the second supporting plate 2025. The first lifting cylinder and the second lifting cylinder have the same lifting stroke, and are electrically connected with a control system for being controlled by the control system to lift or lower the second supporting plate 2025. When the supporting plate reaches the upper limit position, the horizontal position of the contact surface of the universal ball assembly 2451 and the tire corresponds to the horizontal position of the contact surface of the chain and the tire, so that the plurality of universal ball assemblies 2451 are in contact with the tire when the tire is conveyed, and the tire can be conveyed in an auxiliary mode. The tire is not directly contacted with the supporting plate assembly, so that frictional resistance is avoided, and the tire is conveyed more easily and more laborsavingly. When the center position of the tire corresponds to the center position of the center hole 2025a (both on the same straight line), the tire conveying assembly 24 is controlled by the control system to suspend conveying. When the lifting frame assembly 2 is moved downwards to the position of the lead block press-fitting assembly 3 by the lifting device 10, and the tire is limited at the position of the lead block press-fitting assembly 3, the control system controls the first lifting cylinder and the second lifting cylinder to move downwards, so that the second supporting plate 2025 moves downwards to a lower limit position (as long as the universal ball is not in contact with the tire), so that the universal ball and the lower surface of the tire have a space, and the tire is prevented from moving, rotating and the like under the action of the universal ball. The control principle of the control system is the same as or similar to that of the existing control principle, and the execution, pause or stop of the control can be realized only by manual setting or pressing or releasing corresponding keys by a person.

In this embodiment, a tire sensing device (not shown) for detecting whether the tire is conveyed to a predetermined position on the pallet assembly is disposed on the tire lead block press-mounting machine, and the tire sensing device is electrically connected to the control system. Tire induction system is including locating be close to on the tire lead block pressure equipment machine the position department of the front side of crane assembly 2 (keeping away from one side of back of the body frame 201) is provided with an infrared light unit and locates be close to on the tire lead block pressure equipment machine the reflection of light unit of the position department of the rear side of crane assembly 2 (the one side at back of the body frame 201 place), infrared detecting element's height with high phase-match, be less than the upper surface of tire. After the tire is conveyed to a preset position on the supporting plate assembly, the tire just shields the infrared light of the infrared light unit, the infrared light is shielded by the tire, so the light reflecting unit cannot reflect light, the tire sensing device sends a corresponding signal to the control system, and the control system receives the signal and then takes the signal as a signal for driving the tire conveying assembly 24 to pause (namely, a signal for driving a driving shaft driving motor to pause) so that the tire is conveyed in a pause mode. It is understood that any other sensing device that can detect an object on the market can be used as the tire sensing device. It will be appreciated that whether the tire delivery assembly 24 is paused may also be achieved in other ways, such as, at its most basic, pausing and delivering the tire delivery assembly 24 by manually controlling the control system buttons, etc., and is not described herein in any limiting sense.

In this embodiment, the tire conveying assembly 24 further includes a first conveying mechanism guard 2454 standing on the pallet assembly and located outside the first conveying mechanism 243 (on the side away from the second conveying mechanism 244), and a second conveying mechanism guard standing on the pallet assembly and located outside the second conveying mechanism 244 (on the side away from the first conveying mechanism 243). Specifically, the first conveying mechanism guard 2454 is erected on the first supporting plate 2024 at a position close to the first conveying mechanism 243, and the height of the first conveying mechanism guard 2454 matches the height of the first conveying mechanism 243. The second conveying mechanism baffle is vertically arranged on a third supporting plate 2026 at a position close to the second conveying mechanism 244, and the height of the third conveying mechanism baffle is matched with that of the second conveying mechanism 244.

The tire conveying assembly 24 of the scheme has the advantages that the universal balls can play a role in conveying assistance, and compared with a mode of only designing a conveying mechanism, tires can be conveyed more easily, and conveying force can be reduced. The two lifting mechanisms can enable the second supporting plate 2025 to ascend and descend, when a tire is arranged on the lead block press-fitting assembly 3, the second supporting plate 2025 is descended to prevent the universal ball from contacting with the lower surface of the tire, and the tire is prevented from shifting, moving and the like, so that the tire is better and more stably arranged on the lead block press-fitting assembly 3, and errors and the like of the press-fitting position of the lead block caused by the shifting of the tire are avoided. The tire conveying assembly 24 is simple and ingenious in structure, good in using effect and capable of saving more energy.

According to the lifting frame assembly 2, the lifting device 10 of the tire lead block press-mounting machine is matched, before the tire is conveyed, the horizontal position (the first position) of the lifting frame assembly 2 is kept consistent with the horizontal position of a tire conveying production line, the tire conveying stability is effectively guaranteed, and the phenomena of tire bump and instability caused by inconsistent height can be avoided. After the tire is conveyed to the proper position, the supporting plate assembly of the lifting frame assembly 2 supports the tire, the tire is moved downwards to the lead block press-fitting assembly 3 under the action of the lifting device 10, the lead block press-fitting process is completed, after the lead block press-fitting process is completed, the lifting frame assembly 2 is moved upwards to a first position under the action of the lifting device 10, and then the tire conveying assembly 24 works to convey the tire out of the lead block press-fitting machine towards the direction of the dynamic balance detection device. The lifting frame assembly 2 is simple in overall structure and light in self weight, effectively plays a role in bearing up and down, and guarantees tire conveying and moving work before a lead block press-fitting process and conveying and moving work after the tire press-fitting process.

Regarding the lead block press-fitting assembly 3:

the lead block press-fitting assembly 3 comprises a lead block press-fitting mechanism arranged at a position corresponding to a lead block on a rim (namely, a lead block arranged on an inner ring of the rim through the lead block mounting station), and a press-fitting surface of the lead block press-fitting mechanism faces the direction of the lead block. Further, the lead block press-fitting assembly 3 further comprises a lead block press-fitting driving assembly which is arranged below the lifting frame assembly 2, connected with the lower end of the lead block press-fitting mechanism and used for driving the lead block press-fitting driving assembly to rotate and reset the lead block press-fitting mechanism. In this embodiment, the lead block press-fitting driving assembly is disposed on the first base plate 12. Further, the lead block press-fitting driving assembly comprises a lead block press-fitting rotary driving mechanism 31 and a lead block press-fitting rotary transmission mechanism 32 connected with the lead block press-fitting rotary driving mechanism 31; the control system is further used for controlling the lead block press-fitting rotary driving mechanism to rotate for a preset angle after the lead block press-fitting mechanism completes first-round press-fitting to one part of lead blocks on the rim, and driving the lead block press-fitting mechanism to rotate for the preset angle, so that the lead block press-fitting mechanism performs press-fitting to the other part of lead blocks on the rim to complete second-round press-fitting.

In this embodiment, in order to reduce the lifting stroke of the crane assembly, save the lead block press-fitting time, and prolong the service life of the equipment, the lead block press-fitting assembly 3 further includes an installation frame 37, which is arranged on the first base plate 12 and used for improving the lead block press-fitting mechanism. The mounting bracket 37 is located below the crane assembly, the mounting bracket 37 comprises a plurality of foot stands 371 arranged on the first base plate 12 and mounting platforms 372 arranged on the foot stands 371. In order to enhance the supporting strength and stability between the plurality of foot stands 371, a foot stand connecting rod 373 is transversely arranged between every two adjacent foot stands 371. It is understood that this is only one embodiment of the present invention, and in other embodiments, the structure of the mounting frame 37 is not limited thereto, and may be, for example, a box structure, or a mounting plate directly laterally disposed on a vertical base, or the like, and may also directly mount the lead press-fitting assembly 3 on the first bottom plate 12.

Further, the lead block press-fitting driving assembly is arranged on the mounting table of the mounting frame 37. The lead block press-fitting rotation driving mechanism 31 includes a rotation driving cylinder 312 horizontally disposed on the mounting table and a rotation shift lever 313 connected to an output shaft of the rotation driving cylinder 312. Preferably, the lead press-fitting rotation driving mechanism 31 further includes a first connecting plate 311 fixed (e.g., screwed, welded, riveted, etc.) to the mounting block 372, the rotation driving cylinder 312 is mounted on the first connecting plate 311, and the rotating lever 313 is connected to the lead press-fitting rotation transmission mechanism 32 to drive the lead press-fitting rotation transmission mechanism 32 to rotate or reset, so as to rotate or reset the lead press-fitting mechanism. More specifically, the lead block press-fitting rotation driving mechanism 31 further includes a cylinder mounting seat provided on the first connection plate 311, and a cylinder mounting member provided on one end of the rotation driving cylinder 312, which is far from the driving shaft, and connected to the cylinder mounting seat of the rotation driving cylinder 312. Further, the cylinder mount is a ball pivot earring mount 314, and the cylinder mount is a dual earring mount 315. The ball hinge ear ring support 314 includes a horizontal bottom plate 3141 and a vertical plate 3142 standing on the horizontal bottom plate 3141 and having a pivot hole. The double-lug ring mounting member 315 includes a first fixing plate 3151 attached to an end surface of the rotation driving cylinder 312 away from the output shaft thereof, a first mounting lug 3152 and a second mounting lug 3153 disposed on the first fixing plate 3151 and perpendicular thereto, and a pivot shaft, and the pivot shaft is disposed through the first mounting lug 3152, the vertical plate 3142, and the second mounting lug 3153 to mount the rotation driving cylinder 312 on the ball hinge lug ring support 314.

It is understood that, in other embodiments, the installation manner of the rotation driving cylinder 312 is not limited to the above manner, for example, an installation member is directly provided on a surface of the rotation driving cylinder 312 facing the installation table 372 to be installed on the installation table 372, or an installation member is provided at another portion of the rotation driving cylinder 312 to be installed on the installation table 372. In other embodiments, the lead block press-fitting rotation driving mechanism 31 may further use a driving motor to drive the lead block press-fitting mechanism to rotate or reset, when the driving motor is used, the driving motor is vertically disposed below the mounting table 372 at a position corresponding to the lead block press-fitting rotation transmission mechanism 32, and an output shaft of the driving motor penetrates upward out of the mounting table 372 to be connected with the lead block press-fitting rotation transmission mechanism 32, so as to drive the lead block press-fitting mechanism to rotate or reset.

The lead block press-fitting rotary transmission mechanism 32 comprises a driving gear assembly 321 arranged on the mounting table 372 and connected with a rotary shift lever 313 of the rotary driving cylinder 312, a driven gear assembly 322 meshed with the driving gear assembly 321, and a third connecting piece arranged at the upper end of the driven gear assembly 322. The driving gear assembly 321 includes a driving gear connecting rod 3211 erected on the mounting block 372 at a position corresponding to the rotating shift rod 313 of the rotating driving cylinder 312, and a driving gear 3212 sleeved on the driving gear connecting rod 3211 and connected to the rotating shift rod 313. The driven gear assembly 322 includes a driven gear connecting rod 3221 arranged on the mounting table 372 side by side with the driving gear connecting rod 3211, and a driven gear 3222 sleeved on the driven gear connecting rod 3221 and engaged with the driving gear 3212, wherein the driven gear 3222 is driven by the driving gear 3212 to rotate around its own axis. The third connecting member may be a cylindrical connecting column, or may be a connecting column 323 having a rectangular cross section. The third connecting rod may also be a connecting plate, a connecting box, or the like. The lower end of the connecting column 323 is fixedly connected with the upper end of the driven gear connecting rod 3221, and the upper end is fixedly connected with the lower end of the lead block press-fitting mechanism. In this embodiment, the lower end of the connecting column 323 has a fixing hole for the driven gear connecting rod 3221 to pass through and be fixed therein.

In this embodiment, the lead press-fitting and rotating mechanism further includes a gear box 324 and a fourth connecting member for connecting the gear box 324 to the mounting block 372. Specifically, the gear case 324 is a semi-closed case having a cavity axially penetrating therethrough, and the driving gear assembly 321 and the driven gear assembly 322 are installed in the cavity. More specifically, the driving gear connecting rod 3211 and the driven gear connecting rod 3221 both have lower ends penetrating through a bottom plate of the gear box 324 and upper ends penetrating through a top plate of the gear box 324 and protruding out of the top plate of the gear box 324. The driving gear 3212 and the driven gear 3222 are respectively sleeved on the respective gear connecting rods at the portions located in the cavities. The fourth connecting members are two second connecting plates 325 respectively padded at both sides of the gear box 324, and the two second connecting plates 325 provide a predetermined gap between the bottom surface of the gear box 324 and the mounting table 372, so as to leave a certain mounting space for the lower ends of the driving gear connecting rod 3211 and the driven gear connecting rod 3221.

In this embodiment, the lead block press-fitting mechanism includes a fixing mechanism 33 connected to the lead block press-fitting rotary transmission mechanism 32, a lower press-fitting mechanism 34, an upper press-fitting mechanism 35, and a tire positioning mechanism 36, which are sequentially disposed from top to bottom on the fixing mechanism 33, and the position of the tire positioning mechanism 36 is higher than the upper end surface of the fixing mechanism 33. The upper layer press-mounting mechanism and the lower layer press-mounting mechanism respectively comprise a driving assembly arranged on the fixing mechanism and a press-mounting assembly connected with an output shaft of the driving assembly; the upper layer driving assembly and the lower layer driving assembly respectively comprise a transverse driving assembly and a longitudinal driving assembly which is arranged above the corresponding transverse driving assembly and is vertical to the corresponding transverse driving assembly on the horizontal projection; the transverse driving assemblies respectively comprise two transverse driving cylinders which are arranged back to back, and the output end of each transverse driving cylinder faces to the corresponding lead block; the longitudinal driving assembly comprises two longitudinal driving cylinders which are arranged back to back, and the output ends of the longitudinal driving cylinders face to the corresponding lead blocks; the press-fitting assembly comprises an arc-shaped press-fitting block connected with the output shaft of each transverse driving cylinder and a buffer block arranged on the press-fitting surface of each arc-shaped press-fitting block. The tire positioning mechanism comprises a buffer plate arranged on the fixing mechanism and a tire positioning column which penetrates through the buffer plate and is connected with the fixing mechanism and used for sleeving a rim center hole of the tire in the tire positioning column. Wherein:

the lower end of the fixing mechanism 33 is fixed to the connecting column 323 (in this embodiment, the fixing mechanism 33 is fixed to the outer circumferential surface of the connecting column 323). Specifically, the fixing mechanism 33 includes a connecting portion connected to the upper end of the connecting column 323, a first fixing portion for fixing the lower and upper press-fitting

mechanisms

34 and 35, and a second fixing portion for fixing the tire positioning mechanism 36. Wherein:

the connecting part comprises a plurality of fixing blocks 331 attached to the outer peripheral surface of the connecting column 323, the fixing blocks 331 are located on the same horizontal plane and are adjacent end to form a cylindrical structure with the shape matched with that of the connecting column 323. In this embodiment, the four fixing blocks are arranged on the outer peripheral surface of the connecting column in a pairwise opposite manner, the four fixing blocks are in a pairwise opposite manner, and the central lines of the fixing blocks in each group are vertically intersected (that is, the central line of the fixing block in the first group is vertically connected with the central line of the fixing block in the second group, and the intersection point is overlapped with the centers of the four fixing blocks in a horizontal projection). When the cross section of the connecting column 323 is rectangular, the connecting portion includes four fixing blocks 331 respectively attached to four outer side surfaces of the connecting column 323 (this embodiment is the scheme adopted). When the section of the connecting column 323 is circular, the connecting part comprises four arc-shaped fixing blocks 331 which are mutually spaced and attached to the peripheral surface of the cylindrical connecting column 323, the four arc-shaped fixing blocks 331 are opposite to each other in pairs to form a group, and the four arc-shaped fixing blocks are vertically intersected through the central line of each group of arc-shaped blocks.

The first fixing portion includes four second bottom plates 332 connected to the four fixing blocks 331 in a one-to-one correspondence manner, and four vertical plates 333 connected to the four second bottom plates 332 in a one-to-one correspondence manner. The inner end of each second bottom plate 332 is connected to the corresponding fixing block 331, and the outer end is vertically connected to the lower end of the corresponding vertical plate 333. The four vertical plates 333 are opposite to each other in pairs to form a first group of vertical plates and a second group of vertical plates, a first lower mounting hole 3331 and a first upper mounting hole 3332 which are vertically arranged are formed on each first group of vertical plates 333, a second lower mounting hole 3333 and a second upper mounting hole 3334 which are vertically arranged are formed on each second group of vertical plates 333, the distance between each first lower mounting hole 3331 and each first upper mounting hole 3332 is larger than that between each second lower mounting hole 3333, and the distance between each second lower mounting hole 3333 and each second upper mounting hole 3334 is larger than that between each first upper mounting hole 3332. The second lower mounting hole 3333 is located between the first lower mounting hole 3331 and the first upper mounting hole 3332 in a horizontal position, and the first upper mounting hole 3332 is located between the second lower mounting hole 3333 and the second upper mounting hole 3334 in a horizontal position, that is, in a height direction, the first lower mounting hole 3331, the second lower mounting hole 3333, the first upper mounting hole 3332, and the second upper mounting hole 3334 are staggered in a direction from bottom to top. In this embodiment, preferably, two sides of each vertical plate 333 are respectively provided with a side baffle 334, the side baffle 334 is in a right triangle shape, a shorter right-angle side is connected with the corresponding second bottom plate 332, and a longer right-angle side is connected with the corresponding vertical plate 333.

The second fixing portion includes a stand 335 standing on the top of the connecting column 323 or the bottom of the first fixing portion (i.e., on the second bottom plate 332), and a third connecting plate 336 disposed on the top end of the stand 335. Preferably, the stand 335 includes four vertical rods, and the four vertical rods form two rows and two columns of matrix points on the projection of the horizontal plane. Every two adjacent vertical frames 335 are respectively located at two sides of the corresponding lower mounting hole and the upper mounting hole, so as to avoid the upper layer mounting mechanism 35 and the lower layer mounting mechanism.

The fixing mechanism has simple and compact structure, and can be used for mounting the upper laminating mechanism, the lower laminating mechanism and the tire positioning mechanism on the upper laminating mechanism, the lower laminating mechanism and the tire positioning mechanism in a compact way without mutual restriction and mutual influence. The fixing mechanism integrates the upper layer press-mounting mechanism, the lower layer press-mounting mechanism and the tire positioning mechanism together, so that the lead block press-mounting mechanism is more compact in structure and smaller in size.

Lower floor's pressure equipment mechanism 34 including install in lower floor's drive assembly on the first fixed part and with lower floor's pressure equipment subassembly that drive assembly's output shaft is connected, lower floor's drive assembly's output shaft wears out corresponding first mounting hole 3331 and second mounting hole 3333 down, lower floor's pressure equipment subassembly is located the first fixed part outside. The lower layer driving assembly comprises a first transverse driving assembly and a first longitudinal driving assembly which is arranged above the first transverse driving assembly and is vertical to the first transverse driving assembly in horizontal projection. In this embodiment, the first transverse driving assembly includes two first transverse driving cylinders 341 arranged back to back, and output ends of the two first transverse driving cylinders 341 respectively penetrate through the first lower mounting holes 3331 of the first set of opposite vertical plates 333 to be located outside the corresponding vertical plates 333, so as to face the corresponding lead blocks. The first longitudinal driving assembly includes two first longitudinal driving cylinders (not shown) disposed back to back, and output ends of the two first longitudinal driving cylinders respectively penetrate through the second lower mounting holes 3333 on the second set of opposite vertical plates 333 to be located outside the corresponding vertical plates 333, so as to face the corresponding lead blocks. Preferably, the backrest ends of the two first transverse driving cylinders 341 are connected to each other, the lower end surface may be fixed to the second base plate 332, the output ends may be respectively inserted into the two first lower mounting holes 3331, and the output shaft may be capable of being outwardly pushed and inwardly retracted to be reset. Wherein, the stroke of outward pushing and retracting reset can be set according to the requirements of different embodiments, and is not detailed here. Similarly, the backrest ends of the two first longitudinal driving cylinders are connected to each other, the lower end surface can be fixed to the upper end surface of the two first transverse driving cylinders 341 through a second fixing plate, the output ends can be respectively embedded in the two second lower mounting holes 3333, and the output shafts can be pushed outwards and retracted inwards to reset, wherein the stroke of the outward pushing-out and retraction resetting can be set according to the requirements of different embodiments, and will not be described in detail herein.

The lower-layer press-fitting assembly comprises four first arc-shaped press-fitting blocks 342 which are connected with output shafts of two first transverse driving cylinders 341 and two first longitudinal driving cylinders respectively and are arched outwards, one surface, facing the lead block (an outer arched surface), of each first arc-shaped press-fitting block 342 is a press-fitting surface, the four first arc-shaped press-fitting blocks 342 are connected with output shafts of the corresponding driving cylinders and then located on the same horizontal plane, and the four first arc-shaped press-fitting blocks 342 are adjacent end to form a circle matched with an inner ring of the tire in projection of the horizontal plane. In this embodiment, each first arc-shaped press-fitting block 342 is inclined downward and outward, so that the lower press-fitting component is open or trumpet-shaped, and is matched with the inner ring of the rim. Preferably, the lower press-fitting assembly further comprises first buffer blocks 343 attached to the outer surface (press-fitting surface) of each first arc-shaped press-fitting block 342, respectively, and the first buffer blocks 343 may be made of a material having buffer elasticity, such as polyurethane. The control system is also used for controlling each first transverse driving cylinder and each first longitudinal driving cylinder to push outwards (pushing stroke parameters can be specifically set according to the inner diameter of the wheel rim) when the lead blocks corresponding to the lower-layer press-fitting assembly are pressed, so that each arc-shaped press-fitting block presses the corresponding lead block outwards.

The upper layer press-fitting mechanism 35 has the same or similar structure as the lower layer press-fitting mechanism 34, and includes an upper layer drive assembly mounted on the first fixing portion and an upper layer press-fitting assembly connected to an output shaft of the upper layer drive assembly, the output shaft of the upper layer drive assembly passes through a first upper mounting hole 3332 and a second upper mounting hole 3334 which correspond to each other, and the upper layer press-fitting assembly is located outside the first fixing portion. The upper layer driving assembly comprises a second transverse driving assembly and a second longitudinal driving assembly which is arranged above the second transverse driving assembly and is vertical to the second transverse driving assembly in horizontal projection. In this embodiment, the second transverse driving assembly includes two second transverse driving cylinders 351 disposed back to back, and output ends of the two second transverse driving cylinders 351 respectively penetrate through the first upper mounting holes 3332 of the first set of opposing vertical plates 333 to be located outside the corresponding vertical plates 333. The second longitudinal driving assembly comprises two second longitudinal driving cylinders 352 arranged back to back, and output ends of the two second longitudinal driving cylinders 352 respectively penetrate through the second upper mounting holes 3334 on the second set of opposite vertical plates 333 to be located outside the corresponding vertical plates 333. Preferably, the backrest ends of the two second transverse driving cylinders 351 are connected with each other, the lower end surface can be fixed on the second base plate 332, the output ends can be respectively embedded in the two first upper mounting holes 3332, and the output shaft can be pushed out and retracted inwards to reset, wherein the stroke of the outward pushing out and retracted resetting can be set according to the requirements of different embodiments, and will not be described in detail herein. Similarly, the backrest ends of the two second longitudinal driving cylinders 352 are connected to each other, the lower end surface of the two second longitudinal driving cylinders 352 can be fixed to the upper end surfaces of the two second transverse driving cylinders 351 through a third fixing plate, the output ends of the two second longitudinal driving cylinders can be respectively embedded in the two second upper mounting holes 3334, and the output shafts can be outwardly pushed out and inwardly retracted to be reset. Wherein, the stroke of outward pushing and retracting reset can be set according to the requirements of different embodiments, and is not detailed here.

The upper laminating assembly comprises four second arc-shaped press-fitting blocks 353 which are connected with output shafts of two second transverse driving cylinders 351 and two second longitudinal driving cylinders 352 respectively and are arched outwards, one surface of each second arc-shaped press-fitting block 353 facing the lead block is a press-fitting surface, the four second arc-shaped press-fitting blocks 353 are connected with output shafts of the corresponding driving cylinders and then located on the same horizontal plane, and the four second arc-shaped press-fitting blocks 353 are adjacent end to form a circle matched with an inner ring of the tire in projection of the horizontal plane. In this embodiment, the upper laminate assembly has a cylindrical shape as a whole. Preferably, the upper press-fitting assembly further includes second buffer blocks 354 respectively attached to outer surfaces (press-fitting surfaces) of the second arc-shaped press-fitting blocks 353, and the second buffer blocks 354 may be made of a material having buffer elasticity, such as urethane. The control system is also used for controlling each second transverse driving cylinder and each second longitudinal driving cylinder to push outwards (pushing stroke parameters can be specifically set according to the inner diameter of the wheel rim) when the lead blocks corresponding to the upper laminating assembly are pressed, so that each two arc-shaped pressing blocks press the corresponding lead blocks outwards.

The tire positioning mechanism 36 includes a buffer plate disposed on the third connecting plate 336 and a tire positioning post passing through the buffer plate and connected with the third connecting plate 336 for sleeving the central hole of the rim of the tire therein. The tire positioning column is vertically arranged at the center of the third connecting plate 336. Preferably, the tire positioning column is tapered with a small upper end and a large lower end.

The lead block press-fitting assembly 3 can accurately press the lead blocks at all positions on the rim, and the lead blocks are prevented from falling off.

It will be appreciated that the lead press-fit drive assembly described above is not an essential component. For example, in some embodiments, when the lead block press-fitting mechanism can press-fit the lead block on the rim at one time, the second round of press-fitting the lead block is not needed, and then, the lead block press-fitting driving assembly can be omitted, and only the lead block press-fitting mechanism needs to be directly installed below the mounting bracket assembly (for example, on the ground, on the corresponding working platform, or on the mounting platform), and the installation manner can be various, for example, welding, bolting, riveting the lower end of the lead block press-fitting mechanism to the corresponding ground, the working platform, or the mounting platform, and the like. For example, in another embodiment, the lower driving assembly of the lower press-fitting mechanism of the lead block press-fitting mechanism is a plurality of two or more driving cylinders, the corresponding lower press-fitting assembly is a lower press-fitting assembly composed of a plurality of two or more press-fitting blocks, the upper driving assembly of the upper press-fitting mechanism is a plurality of two or more driving cylinders, the corresponding upper press-fitting assembly is an upper press-fitting assembly composed of a plurality of two or more press-fitting blocks, the plurality of driving cylinders of the lower driving assembly and the plurality of driving cylinders of the upper driving assembly are in a cross shape on a horizontal plane, but not limited to the cross shape, and the number and positions of the driving cylinders are determined according to the number of lead blocks and positions on the rim. In brief, the lead block press-fitting assembly includes a lead block press-fitting mechanism including a driving component provided at a position corresponding to a lead block on a rim and a press-fitting component connected to an output shaft of the driving component. It can be understood that the structural transformation of the lead block press-fitting mechanism is not limited to the above manner, as long as the positions and the number of the driving cylinders of the upper and lower layer driving assemblies are set according to the position of the lead block on the rim and the press-fitting assemblies with corresponding numbers are correspondingly set, and the description is omitted here.

The principle of the lead block press-mounting mechanism is as follows: firstly, positioning a tire: when the lifting frame assembly supports the tire to descend to the position of the lead block press-mounting mechanism, the tire positioning column of the lead block press-mounting mechanism penetrates through the center hole of the rim of the tire to position the tire. Secondly, first round lead block press mounting: and the control system controls the output shafts of the first transverse driving assembly, the first longitudinal driving assembly, the second transverse driving assembly and the second longitudinal driving assembly to stretch and retract so as to complete the lead block pressing of the first wheel, press the lead block on the wheel rim when the lead block is pushed outwards, and return when the lead block is retracted inwards. Thirdly, rotating the lead block press-mounting mechanism by a preset angle: after the first round of lead block is pressed, the control system controls the lead block press-fitting driving assembly to drive the lead block press-fitting mechanism to rotate by a preset angle again (namely, the control system controls the output shaft of the rotary driving cylinder 312 to push outwards to stir the driving gear component of the lead block press-fitting rotary transmission mechanism 32 to rotate, the driving gear component 321 drives the driven gear component 322 to rotate, so that the connecting column 323 fixed on the driven gear component 322 rotates, and the connecting column 323 drives the whole lead block press-fitting mechanism to rotate by a preset angle). Fourthly, second round lead block press mounting: and the control system controls the output shafts of the first transverse driving assembly, the first longitudinal driving assembly, the second transverse driving assembly and the second longitudinal driving assembly to stretch again so as to complete the press mounting of the second round lead blocks, and the press mounting of the second round lead blocks is the same as the press mounting principle of the first round lead blocks, but the press mounting of the lead blocks at different positions is carried out. After the second round of lead block press mounting is completed, the tire is tightly embraced by the arm embracing assembly of the lifting frame assembly, the lifting frame assembly moves upwards to be consistent with the height of the tire flowing water conveying line, then the control system controls the tire conveying assembly to convey the tire to the conveying line in front, and therefore the tire is conveyed to the tire dynamic balance detection unit.

Referring to fig. 15, fig. 15 is a flowchart illustrating a method for press-fitting a lead block in a tire lead block press-fitting machine according to an embodiment of the present invention. Firstly, the tire lead block press-mounting machine needs to be installed in a tire conveying production line, particularly between a tire lead block installation station and a tire dynamic balance detection station. After the lead block is installed on the rim, the tire is conveyed to the tire conveying assembly line again, and because the height of the lifting frame assembly of the tire lead block press-fitting machine is matched with the height of the tire conveying assembly line, the tire conveying assembly line can convey the tire to the lifting frame assembly smoothly, and after the lead block press-fitting is completed, the tire can be conveyed to the tire conveying assembly line smoothly, so that the tire conveying assembly line can convey the tire to the tire dynamic balance detection station for tire dynamic balance detection. Specifically, the press-fitting method of the tire lead block press-fitting machine of the embodiment includes the following steps:

s101, starting a tire conveying assembly to enable the conveying direction of the tire conveying assembly to be consistent with the conveying direction of a tire conveying production line;

and after the tire lead block mounting machine is mounted, the tire conveying assembly can be started before the tire lead block is required to be pressed. In this embodiment, the control system controls the lead block press, and therefore, in this step, the control system starts the tire transfer assembly.

S102, detecting whether the tire is conveyed to the lifting frame position;

in this step, whether the tire is conveyed to the corresponding position of the lifting frame is detected through the tire sensing device, after the tire is conveyed to the corresponding position on the lifting frame, the tire is blocked between the infrared light unit and the light reflecting unit, and when the infrared light unit does not receive the light reflection of the light reflecting unit, a sensing signal is sent to the control system to inform the control system that the tire reaches the lifting frame.

S103, if the tire is conveyed to the lifting frame, controlling the tire conveying assembly to pause and controlling the tire holding arm assembly to hold the tire tightly;

when the tire is conveyed to the corresponding position of the lifting frame by the tire conveying assembly, the conveying is suspended to avoid the tire from being conveyed away, and the tire holding arm assembly holds the tire tightly to prevent the tire from being displaced.

S104, controlling the lifting device to drive the lifting frame to move downwards to the position of the lead block press-fitting assembly;

s105, when the lifting frame moves downwards to the position of the lead block press-fitting assembly, suspending the lifting device and controlling the tire holding arm assembly to release the tire, and controlling the lead block press-fitting assembly to press-fit the lead block onto a rim of the tire;

when the lifting frame moves downwards to the position of the lead block press-fitting assembly, the lead block press-fitting mechanism of the lead block press-fitting assembly penetrates out of the central hole upwards to be located in a rim of the tire. Specifically, the lower layer press-fitting mechanism, the upper layer press-fitting mechanism and the tire positioning mechanism of the lead block press-fitting mechanism all penetrate out of the central hole upwards so as to be positioned in a rim of the tire, and the tire positioning mechanism penetrates through the central hole of the rim; when the lead block press-fitting assembly is controlled to press-fit the lead block onto the rim of the tire, firstly, the lower layer press-fitting mechanism and the upper layer press-fitting mechanism are controlled to be pushed outwards to press-fit the corresponding lead block on the rim, so that the first round of lead block press-fitting is completed, secondly, the lead block press-fitting rotary driving mechanism is controlled to rotate for a preset angle, the lead block press-fitting rotary driving mechanism enables the lead block press-fitting rotary driving mechanism to drive the lead block press-fitting mechanism to rotate for a preset angle, and thirdly, the lower layer press-fitting mechanism and the upper layer press-fitting mechanism are controlled to be pushed outwards to press-fit the corresponding lead block on the rim, so that the second round of lead block press-fitting is completed. More specifically, in the process of controlling the first round of lead block press-fitting and the second round of lead block press-fitting, each transverse driving cylinder and each longitudinal driving cylinder of the upper layer driving assembly and the lower layer driving assembly are controlled to be pushed outwards, so that each arc-shaped press-fitting press is pressed outwards towards the corresponding lead block.

S106, when the lead block press-fitting is finished, controlling the tire holding arm assembly to hold the tire again, and controlling the lifting device to operate to lift the lifting frame to an initial position;

s107, when the lifting frame returns to the initial position, the tire holding arm assembly is controlled to release a tire, and the tire conveying assembly is controlled to run again to convey the tire to a forward tire conveying pipeline, so that the tire conveying pipeline is continuously conveyed forwards to the tire dynamic balance detection station.

According to the lead block press-fitting machine and the press-fitting method for press-fitting the lead block, the tire conveying assembly can be in a working state all the time after the last tire to be press-fitted is sent away, so that the next tire to be press-fitted can be received at any time. When the tire reaches the lifting frame, the tire sensing device senses the tire, and the control system can perform a series of subsequent automatic control, including suspending the tire transmission assembly, enabling the tire holding arm assembly to hold the tire tightly, enabling the tire to descend to the position of the lead block press-mounting assembly, enabling the tire holding arm device to release the tire, enabling the lead block press-mounting mechanism to press-mount the lead block, enabling the tire holding arm device to hold the tire tightly again so as to enable the tire to ascend to the initial position, enabling the tire holding arm device to release the tire again, and enabling the tire transmission assembly to work so as to send the tire away. The series of processes are controlled automatically without manual participation. When guaranteeing the firm pressure equipment of lead, reduce the human cost, make equipment more intelligent.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A press fitting method for press fitting of a lead block of a tire lead block press fitting machine is characterized in that the lead block press fitting machine is located between a lead block mounting station and a tire dynamic balance detection station, the tire lead block press fitting machine comprises a lifting device, a lifting frame assembly and a lead block press fitting assembly, the lifting frame assembly is mounted on the lifting device, the lifting frame assembly comprises a lifting frame, a tire holding arm assembly and a tire conveying assembly, the lifting frame is mounted on the lifting device and used for holding a tire and lifting the tire, the tire holding arm assembly is arranged at the upper end of the lifting frame and used for holding the tire tightly, the tire conveying assembly is used for being connected with a tire conveying production line at one end to receive the tire conveyed to the lifting frame, and the tire conveying assembly is connected with a tire conveying production line at the other; the press fitting method comprises the following steps:

starting a tire conveying assembly to enable the conveying direction of the tire conveying assembly to be consistent with the conveying direction of the tire conveying assembly line;

detecting whether a tire is conveyed to the crane position;

if the tire is detected to be conveyed to the lifting frame position, controlling the tire conveying assembly to pause, and controlling the tire holding arm assembly to hold the tire tightly;

controlling the lifting device to drive the lifting frame to move downwards to the position of the lead block press-fitting assembly;

when the lifting frame moves downwards to the position of the lead block press-fitting assembly, suspending the lifting device and controlling the tire holding arm assembly to release the tire, and controlling the lead block press-fitting assembly to press the lead block onto a rim of the tire;

when the press fitting of the lead block is finished, controlling the tire holding arm assembly to hold the tire again, and controlling the lifting device to operate to lift the lifting frame to an initial position;

when the lifting frame returns to the initial position, the tire holding arm assembly is controlled to release a tire, and the tire conveying assembly is controlled to run again to convey the tire to a front tire conveying line, so that the tire conveying line is continuously conveyed forwards to the tire dynamic balance detection station.

2. A press-fitting method for a lead block for a tire lead block press-fitting machine according to claim 1, wherein: the lead block press-fitting machine further comprises a tire sensing device, the tire sensing device comprises an infrared light unit arranged outside one side of the lifting frame assembly and a light reflecting unit arranged outside the other side of the lifting frame assembly and opposite to the infrared light unit, when the tire is conveyed to the corresponding position on the lifting frame, the tire is blocked between the infrared light unit and the light reflecting unit, and when the infrared light unit does not receive the light reflection of the light reflecting unit, a sensing signal is sent to a control system to inform the control system that the tire reaches the lifting frame;

in the step of detecting whether the tire is transferred to the position of the crane, whether the tire is transferred to the corresponding position of the crane is detected by the tire sensing means.

3. A press-fitting method for a lead block for a tire lead block press-fitting machine according to claim 1, wherein: the lifting frame comprises a back frame connected with the lifting device and a top frame arranged on the back frame, and the tire holding arm assembly and the tire conveying assembly are arranged on the top frame; the top frame comprises a top frame body and a supporting plate assembly embedded in the top frame body, the top frame body is horizontally arranged at the top end of the back frame, and a central hole is formed in the supporting plate assembly; the supporting plate assembly comprises a first supporting plate, a second supporting plate and a third supporting plate which are sequentially arranged in the top frame from the position close to the back frame to the position far away from the back frame; the first supporting plate, the second supporting plate and the third supporting plate fill the middle space of the top frame body so that the tire can be placed on the middle space of the top frame body, the central hole is formed in the middle of the second supporting plate, the center of the central hole is overlapped with the center of the top frame, and the aperture of the central hole is larger than the outer diameter of a lead block press-fitting mechanism of the lead block press-fitting assembly;

when the lifting frame moves downwards to the position of the lead block press-fitting assembly, the lead block press-fitting mechanism of the lead block press-fitting assembly penetrates out of the central hole upwards to be located in a rim of the tire.

4. A press-fitting method for a lead block for a tire lead block press-fitting machine according to claim 3, wherein: the lead block press-mounting assembly comprises a lead block press-mounting mechanism arranged at a position corresponding to a lead block on a rim of the tire and a lead block press-mounting driving assembly which is connected with the lower end of the lead block press-mounting mechanism and is used for driving the lead block press-mounting mechanism to rotate and reset; the lead block press-fitting driving assembly comprises a lead block press-fitting rotary driving mechanism and a lead block press-fitting rotary transmission mechanism connected with the lead block press-fitting rotary driving mechanism; the lead block press-mounting mechanism comprises a fixing mechanism connected with the lead block press-mounting rotary transmission mechanism, and a lower layer press-mounting mechanism, an upper layer press-mounting mechanism and a tire positioning mechanism which are sequentially arranged on the fixing mechanism from top to bottom, wherein the tire positioning mechanism is higher than the upper end face of the fixing mechanism;

when the lifting frame moves downwards to the position of the lead block press-mounting assembly, the lower layer press-mounting mechanism, the upper layer press-mounting mechanism and the tire positioning mechanism of the lead block press-mounting mechanism all penetrate out of the central hole upwards to be located in a rim of the tire, and the tire positioning mechanism penetrates through the central hole of the rim;

when the lead block press-fitting assembly is controlled to press-fit the lead block onto the rim of the tire, firstly, the lower layer press-fitting mechanism and the upper layer press-fitting mechanism are controlled to be pushed outwards to press-fit the corresponding lead block on the rim, so that the first round of lead block press-fitting is completed, secondly, the lead block press-fitting rotary driving mechanism is controlled to rotate for a preset angle, the lead block press-fitting rotary driving mechanism enables the lead block press-fitting rotary driving mechanism to drive the lead block press-fitting mechanism to rotate for a preset angle, and thirdly, the lower layer press-fitting mechanism and the upper layer press-fitting mechanism are controlled to be pushed outwards to press-fit the corresponding lead block on the rim, so that the second round of lead block press-fitting is completed.

5. A press-fitting method for a lead block for a tire lead block press-fitting machine according to claim 4, wherein: the upper layer press-mounting mechanism and the lower layer press-mounting mechanism respectively comprise a driving assembly arranged on the fixing mechanism and a press-mounting assembly connected with an output shaft of the driving assembly; the upper layer driving assembly and the lower layer driving assembly respectively comprise a transverse driving assembly and a longitudinal driving assembly which is arranged above the corresponding transverse driving assembly and is vertical to the corresponding transverse driving assembly on the horizontal projection; the transverse driving assemblies respectively comprise two transverse driving cylinders which are arranged back to back, and the output end of each transverse driving cylinder faces to the corresponding lead block; the longitudinal driving assembly comprises two longitudinal driving cylinders which are arranged back to back, and the output ends of the longitudinal driving cylinders face to the corresponding lead blocks; the press-mounting assembly comprises an arc-shaped press-mounting block connected with the output shaft of each transverse driving cylinder and a buffer block arranged on the press-mounting surface of the arc-shaped press-mounting block; the control system is also used for controlling each transverse driving cylinder and each longitudinal driving cylinder of the upper layer driving assembly and each transverse driving cylinder and each longitudinal driving cylinder of the lower layer driving assembly to be pushed outwards when the lead block is pressed and installed so that the arc-shaped pressing and installing block presses and installs the corresponding lead block;

in the process of controlling the first round of lead block press-fitting and the second round of lead block press-fitting, each transverse driving cylinder and each longitudinal driving cylinder of the upper-layer driving assembly and the lower-layer driving assembly are controlled to be pushed outwards, so that each arc-shaped press-fitting press is pressed towards the corresponding lead block in the external direction.