CN112809369B - An automatic assembly line for electronic sphygmomanometers - Google Patents

Abstract

The present invention discloses an automatic assembly line for an electronic sphygmomanometer, which includes an automatic screw locking device located at the front section and an automatic panel pasting device located at the rear section, the automatic screw locking device and the automatic panel pasting device are connected by an intermediate transition line, the automatic screw locking device is configured to automatically assemble the internal components of the product into the shell of the electronic sphygmomanometer through screws, the intermediate transition line automatically delivers the components that have been automatically screwed to the feed end of the automatic panel pasting device, and the automatic panel pasting device is configured to automatically complete the panel pasting and rear shell locking operations for the electronic sphygmomanometer. The above-mentioned automatic assembly line for electronic sphygmomanometers is not only compact in structure and ingenious in design, but also greatly improves the assembly efficiency of the electronic sphygmomanometer, saves manpower, and ensures the assembly quality of the product.

Description

An automatic assembly line for electronic sphygmomanometers

Technical Field

The invention belongs to automatic assembly equipment technology, and in particular relates to an automatic assembly line for electronic sphygmomanometers.

Background technique

Electronic sphygmomanometers are medical devices that use modern electronic technology and the principle of indirect blood pressure measurement to measure blood pressure. At present, during the assembly process of electronic sphygmomanometers, it is necessary to assemble its internal components (mainly including keypads, circuit boards, and LCD screens, etc.) and panels. In the prior art, the assembly of electronic sphygmomanometers is mostly done manually, which has the disadvantages of low assembly efficiency, high labor costs, and high defective product rate.

Summary of the invention

The purpose of the present invention is to provide an automatic assembly line for electronic sphygmomanometers to solve the problems of low assembly efficiency, high labor cost and high defective rate in the manual assembly of electronic sphygmomanometers in the prior art.

To achieve this object, the present invention adopts the following technical solutions:

An automatic assembly line for an electronic sphygmomanometer, comprising an automatic screw locking device located at a front section and an automatic panel pasting device located at a rear section, wherein the automatic screw locking device and the automatic panel pasting device are connected via an intermediate transition line, wherein the automatic screw locking device comprises a first frame and a first feeding mechanism, a first carrier, a first circulating conveying line, a plurality of screw locking mechanisms, a first unloading mechanism and an empty carrier return line arranged on the first frame, wherein the first carrier is provided with a clamping mechanism for fixing the product, the first feeding mechanism comprises a feeding conveying line, a first lifting mechanism, a carrier transplanting mechanism and a first feeding clamp, the first circulating conveying line comprises a screw locking conveying device, a first feeding station , several screw locking stations, a pressing and unlocking station and a first unloading station, a positioning mechanism for positioning the first carrier when locking the screws is arranged on one side of each screw locking station on the first frame, the several screw locking mechanisms are arranged corresponding to the several screw locking stations, a pressing and unlocking mechanism for releasing the clamping mechanism from fixing the product is arranged on one side of the pressing and unlocking stations, the first unloading mechanism is arranged at the first unloading station, and includes an unloading robot and an unloading clamp for placing the product and the first carrier on the empty carrier return line and the second carrier respectively, the second carrier is located in the first discharge channel, and the unloading clamp is installed on the driving end of the unloading robot;

The automatic panel veneer device includes a second frame and a second feeding mechanism, a second carrier, a second carrier circulating conveying line, a panel veneer mechanism, a product turning mechanism, a rear shell screw locking mechanism and a finished product unloading mechanism arranged on the second frame. The second feeding mechanism includes a feeding drive assembly and a second feeding clamp. The second carrier circulating conveying line includes a panel veneer conveying device, a second feeding station, a panel veneer station and a turning and unloading station. A positioning mechanism for positioning the second carrier is arranged on the frame corresponding to the panel veneer station. The panel veneer mechanism includes a panel feeding assembly, a film tearing assembly and a panel veneer assembly. The product turning mechanism includes a first turning frame and a turning drive assembly. The first flip frame is provided with flip grippers at both ends, and the flip driving device drives the first flip frame to flip 180°. The rear shell screw locking mechanism includes a rear shell screw locking splitting turntable and a rear shell screw locking mechanism. The rear shell screw locking splitting turntable includes at least three stations for feeding, locking screws and discharging in sequence. The rear shell screw locking mechanism is arranged corresponding to the screw locking station, and a product positioning mechanism for positioning the product when locking screws is arranged on one side of the screw locking station. The finished product unloading mechanism includes a second flip frame and a flip driving device. The second flip frame is provided with flip grippers, and the flip driving device drives the second flip frame to flip to the second discharging channel.

As a further improvement of the present solution, the first carrier includes a carrier body, two outer grooves are correspondingly provided on two opposite outer side walls of the carrier body, and a cavity for positioning the product is provided in the middle of the carrier body, and two inner grooves are correspondingly provided on two opposite inner side walls of the cavity, and the clamping mechanism includes a pressing plate and a flip limit seat, the flip limit seat is fixed on the carrier body, the pressing plate is hinged to the flip limit seat through a hinge shaft and can be selectively in a horizontal state and a vertical state, and the product on the product carrier is fixed when in the horizontal state, and the product on the product carrier is released when in the vertical state.

As a further improvement of the present scheme, the first lifting mechanism can be lifted and arranged at the discharge end of the feeding conveyor line, and it includes a lifting platform and a first lifting drive module. The carrier transplanting mechanism includes a second lifting mechanism, a first transverse movement mechanism and a first carrier clamp. The second lifting mechanism is connected to the first transverse movement mechanism, and the first carrier clamp is installed on the second lifting mechanism. The first transverse movement mechanism includes a transplanting frame, and a transverse movement drive module is fixed on the transplanting frame. A transverse movement connecting plate can be laterally moved on the transverse movement drive module. The second lifting mechanism includes a lifting plate lifted and installed on the transverse movement connecting plate, the lifting plate is connected to a lifting drive cylinder, and a cantilever extending outward is fixed on the lifting plate. The first carrier clamp includes a first mounting plate, four clamps, a transmission assembly and a first clamping drive cylinder. The first mounting plate is fixed on one side of the lifting plate and is located at the cantilever. The top of the four clamping arms is connected to the first and second clamping arms of the present invention, and the top of the four clamping arms is connected to the second and second clamping arms of the present invention.

As a further improvement of the present solution, an inspection station is arranged on the first carrier circulating conveyor line between the pressing and unlocking station and the first unloading station, and the inspection station is provided with an inspection device for detecting whether the product has missed screws. The several screw locking stations, the pressing and unlocking stations and the inspection station are located on the same side of the first carrier circulating conveyor line, and the two ends of the first carrier circulating conveyor line are respectively provided with a second transverse movement mechanism for conveying the first carrier from the first loading station to the screw locking station and a third transverse movement mechanism for conveying the first carrier from the inspection station to the first unloading station. The several screw locking mechanisms are located on the outside of the first carrier circulating conveyor line, and all include a screw locking robot, an automatic screw feeding mechanism and a screw locking electric screw driver. The screw locking robot drives the screw locking electric screw driver to move, and the automatic screw feeding mechanism automatically conveys the screws to the screw locking electric screw driver.

As a further improvement of the present solution, the clamping and unlocking mechanism is arranged on the inner side of the first carrier circulation conveyor line, and includes a column, a fixed plate is fixed on the top of the column, a first movable plate is arranged on the outer side of the fixed plate so as to be able to move laterally through a linear guide rail, at least one second movable plate is arranged on the first movable plate so as to be able to move up and down through a linear guide rail, an unlocking hook plate extending downward is fixed to the bottom of the second movable plate, and the first movable plate and the second movable plate are both connected to a driving cylinder, which drives the first movable plate and the second movable plate to cooperate in the up-down and laterally movement, thereby driving the unlocking hook plate to hook the pressure plate and drives the pressure plate to flip upward for unlocking.

As a further improvement of the present scheme, the unloading robot adopts a four-axis robot, and the unloading clamp includes a second mounting plate. The driving end of the four-axis robot is connected to the second mounting plate. The four corners of the second mounting plate are provided with long outer through holes, and the outer through holes are penetrated with outer clamps. The top ends of the two outer clamps on the same side are connected to the first movable seat, and the first movable seat is installed on the second mounting plate through a linear guide rail. The two driving cylinders drive the two first movable seats to approach and then drive the bottom ends of the four outer clamps to extend into the outer groove of the product carrier to clamp the product carrier, and the second mounting plate is provided with four long inner through holes on the inner side of the area surrounded by the four outer clamps, and the inner through holes are penetrated with inner clamps. The top ends of the two inner clamps on the same side are connected to the second movable seat, and the second movable seat is installed on the second mounting plate through a linear guide rail. The two driving cylinders drive the two second movable seats to approach and then drive the bottom ends of the four inner clamps to extend into the inner groove of the first carrier to clamp the product.

As a further improvement of the present scheme, a decorative ring assembly station and a cover pressing station are further provided on the carrier circulation conveyor line, and a fourth transverse movement mechanism for conveying the second carrier from the loading station to the decorative ring assembly station is provided at the end of the carrier circulation conveyor line, the decorative ring assembly station and the cover pressing station are arranged successively between the loading station and the panel veneer station, a decorative ring assembly mechanism is arranged on the frame outside the decorative ring assembly station, the decorative ring assembly mechanism comprises an installation frame, a decorative ring automatic feeding mechanism, a decorative ring picking module, a decorative ring suction head, a cover pressing cylinder and a cover pressing head, the decorative ring picking module is installed on one side of the installation frame, and comprises a decorative ring picking drive module and a decorative ring picking cylinder, the decorative ring picking cylinder is installed on the decorative ring picking drive module through a connecting plate, the decorative ring suction head is installed on the driving end of the decorative ring picking cylinder, the cover pressing cylinder is installed on the other side of the installation frame, and the cover pressing head is connected to the driving end of the cover pressing cylinder.

As a further improvement of the present scheme, the feeding drive assembly includes a feeding turntable and a feeding transfer module. The feeding turntable can be rotatably mounted at the feeding port on the frame and is driven by a servo motor. The feeding transfer module includes a feeding transverse movement module and a feeding lifting module. The second feeding clamp is installed on the feeding lifting module through a connecting plate. The feeding lifting module is installed on the feeding transverse movement module through a connecting plate. The feeding transverse movement module drives the feeding lifting module to reciprocate in the horizontal direction. The feeding lifting module drives the feeding clamp to reciprocate in the up and down direction. The panel feeding assembly The invention comprises a panel loading line, a plurality of storage racks and a first robot. The plurality of storage racks are stacked with panels in the up-down direction. The panel loading line drives the storage racks to move. The film tearing assembly comprises a film tearing platform and a film tearing clamp. The panel pasting assembly comprises a second robot. The driving ends of the first robot and the second robot are both provided with panel suction cups. The first robot absorbs the top panel from the storage rack and moves to the film tearing platform and cooperates with the film tearing clamp to tear the film. Then the second robot absorbs the panel after film tearing and moves it to the top of the carrier on the panel pasting station and sticks the panel to the product.

As a further improvement of the present solution, a dividing turntable driving motor is connected to the bottom of the rear shell locking screw dividing turntable, and four workstations for feeding, locking screws, discharging and function expansion are arranged in a "cross" shape on the rear shell locking screw dividing turntable, and a number of positioning blocks are arranged on each workstation, and the several positioning blocks form an area for positioning the product, and a notch is provided at one corner of the area. The product positioning mechanism includes a positioning cylinder and a positioning head, and when the rear shell is locking the screws, the positioning cylinder drives the positioning head to tighten a corner of the product.

As a further improvement of the present solution, the middle part of the first flip frame is assembled on the first fixed plate through a rotating shaft, the rotating shaft is connected to the driving shaft of the first flip motor, the first fixed plate is installed on the first flip lifting module through a connecting plate, one end of the second flip frame is assembled on the second fixed plate through a rotating shaft, the rotating shaft is connected to the driving shaft of the second flip motor, and the second fixed plate is installed on the second flip lifting module through a connecting plate.

The beneficial effects of the present invention are that, compared with the prior art, the automatic assembly line of the electronic sphygmomanometer has the following advantages: 1) compact structure and ingenious design; 2) it can realize automatic assembly of the internal components and panels of the electronic sphygmomanometer, with a high degree of automation, which greatly improves work efficiency, saves manpower, and reduces assembly costs; 3) it can ensure the assembly quality of the product and reduce the defective rate of the product.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the structure of an automatic assembly line for electronic sphygmomanometers provided in a specific embodiment of the present invention.

2 is a schematic diagram of the three-dimensional structure of an automatic screw locking device for an automatic assembly line of an electronic sphygmomanometer provided in a specific embodiment of the present invention;

3 is a top view of an automatic screw locking device of an automatic assembly line of an electronic sphygmomanometer provided in a specific embodiment of the present invention;

4 is a schematic diagram of the three-dimensional structure of a first feeding mechanism of an automatic screw locking device of an automatic assembly line of an electronic sphygmomanometer provided in a specific embodiment of the present invention;

5 is a schematic diagram of the three-dimensional structure of a first carrier circulation conveyor line of an automatic screw locking device of an automatic assembly line of an electronic sphygmomanometer provided in a specific embodiment of the present invention;

6 is a schematic diagram of the three-dimensional structure of a first carrier of an automatic screw locking device of an automatic assembly line of an electronic sphygmomanometer provided in a specific embodiment of the present invention;

FIG7 is a partial enlarged view of point A in FIG5;

8 is a schematic diagram of the three-dimensional structure of a first feeding mechanism of an automatic screw locking device of an automatic assembly line of an electronic sphygmomanometer provided in a specific embodiment of the present invention;

FIG9 is a partial enlarged view of point B in FIG8;

10 is a schematic diagram of the three-dimensional structure of an automatic panel pasting device for an electronic sphygmomanometer in an automatic assembly line of an electronic sphygmomanometer provided in a specific embodiment of the present invention;

11 is a top view of an automatic panel-attaching device for an electronic sphygmomanometer in an automatic assembly line for an electronic sphygmomanometer provided in a specific embodiment of the present invention;

12 is a schematic diagram of the three-dimensional structure of the feeding turntable of the automatic assembly line of the electronic sphygmomanometer provided in a specific embodiment of the present invention;

13 is a schematic diagram of the three-dimensional structure of a feeding and transplanting module of an automatic assembly line for an electronic sphygmomanometer provided in a specific embodiment of the present invention;

14 is a schematic diagram of the three-dimensional structure of a second carrier circulation conveyor line of an automatic assembly line for electronic sphygmomanometers provided in a specific embodiment of the present invention;

15 is a schematic diagram of the three-dimensional structure of the decorative ring assembly mechanism of the electronic sphygmomanometer automatic assembly line provided in a specific embodiment of the present invention;

16 is a schematic diagram of the three-dimensional structure of the panel-mounting mechanism of the automatic assembly line of the electronic sphygmomanometer provided in a specific embodiment of the present invention;

17 is a schematic diagram of the three-dimensional structure of a product flipping mechanism of an automatic assembly line of electronic sphygmomanometers provided in a specific embodiment of the present invention;

18 is a schematic diagram of the three-dimensional structure of the rear shell locking screw dividing turntable of the electronic sphygmomanometer automatic assembly line provided by a specific embodiment of the present invention;

19 is a schematic diagram of the three-dimensional structure of the rear shell locking screw mechanism of the automatic assembly line of the electronic sphygmomanometer provided in a specific embodiment of the present invention;

FIG. 20 is a schematic diagram of the three-dimensional structure of the finished product unloading mechanism of the automatic assembly line of the electronic sphygmomanometer provided in the specific embodiment of the present invention.

Detailed ways

The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. Please refer to Figures 1 to 20. In this embodiment, an automatic assembly line of an electronic sphygmomanometer includes an automatic screw locking device 1 located at the front section and an automatic panel pasting device 2 located at the rear section. The automatic screw locking device 1 and the automatic panel pasting device 2 are connected by an intermediate transition line 3, that is, one end of the intermediate transition line 3 is connected to the first discharge channel of the automatic screw locking device 1, and the other end is connected to the feed port of the automatic panel pasting device 2.

The automatic screw locking device 1 includes a first frame 10 and a first loading mechanism 11, a first carrier 12, a first carrier circulation conveyor line 13, a plurality of screw locking mechanisms 14, a first unloading mechanism 15 and an empty carrier return line 16 arranged on the first frame 10. The first carrier 12 includes a carrier body 120, two outer grooves 121 are correspondingly provided on two opposite outer side walls of the carrier body 120, and a cavity 122 for positioning the product is provided in the middle of the carrier body 120, and two inner side walls of the cavity 122 are correspondingly provided with a plurality of outer grooves 121. Two inner grooves 123 should be provided, and a clamping mechanism for clamping and fixing the product is provided on the carrier body 120, and the clamping mechanism includes a pressing plate 124 and a flip limit seat 125, and the flip limit seat 125 is fixed on the carrier body 120, and the pressing plate 124 is hinged to the flip limit seat 125 through a hinge shaft and can be selectively in a horizontal state and a vertical state. When the pressing plate 124 is in a horizontal state, the product on the carrier body 120 is fixed, and when the pressing plate 124 is in a vertical state, the product on the carrier body 120 is released.

The first feeding mechanism 11 includes a feeding conveyor line 110, a first lifting mechanism and a carrier transplanting mechanism. The first lifting mechanism can be lifted and lowered at the discharge end of the feeding conveyor line 110, and includes a lifting platform 111 and a first lifting drive module 112. The carrier transplanting mechanism includes a transplanting frame, on which a transverse driving module 113 is fixed, and the transverse driving module 113 is equipped with a transverse connecting plate that can be laterally moved, and a first lifting plate 114 is installed on the transverse connecting plate so as to be lifted and lowered. The first lifting plate 114 is connected to a driving cylinder 4, and a cantilever 115 extending outward is fixed to the first lifting plate 114, and a driving cylinder 4 is vertically installed at the outer end of the cantilever 115, and a driving rod of the driving cylinder 4 is arranged downward and connected to a feeding carrier clamp, and the feeding carrier clamp includes a first mounting plate 5a, and the first mounting plate 5a is fixed to the first On one side of the lifting plate 114 and below the cantilever 115, the four corners of the first mounting plate 5a are provided with long strip-shaped through holes extending along the two outer side walls of the outer groove 121. The bottom ends of the four loading clamps 116 are arranged through the through holes, and the top ends are connected to the driving cylinder 4 through a transmission assembly. The transmission assembly includes two driving plates 117, a first connecting block 118, a second connecting block 119 and a linear guide. The top ends of the two loading clamps 116 located on the same side are connected to the first connecting block 118, a hinge shaft is provided on the first connecting block 118, and a linear guide is provided between the first connecting block 118 and the first mounting plate 5a. One end of the two driving plates 117 is hinged to the corresponding first connecting block 118, and the other end is coaxially hinged to the second connecting block 119. The driving rod of the driving cylinder 4 is connected to the second connecting block 119.

The first carrier circulation conveyor line 13 adopts a ring structure, which includes a conveying device driven by a servo motor and a synchronous belt. The first carrier circulation conveyor line 13 is respectively provided with a first loading station 13a, a plurality of screw locking stations 13b, a pressing and unlocking station 13c, a detection station 13d and a first unloading station 13e. The first loading station 13a and the first unloading station 13e are arranged at both ends of one side of the first carrier circulation conveyor line 13, and a plurality of screw locking stations 13b, a pressing and unlocking station 13c, and a detection station 13d are all arranged on the other side of the first carrier circulation conveyor line 13. A device for positioning the first carrier 12 when locking the screws is provided on one side of each screw locking station 13b on the first frame 10. The first carrier circulation conveyor line 13 is provided with a first transverse movement mechanism 131 for conveying the first carrier 12 from the first loading station 13a to the screw locking station 13b and a second transverse movement mechanism 132 for conveying the product carrier from the inspection station 13d to the first unloading station 13e at both ends thereof. Each screw locking station 13b is equipped with a screw locking mechanism located outside the first carrier circulation conveyor line 13. The screw locking mechanism comprises a screw locking robot 133, an automatic screw feeding mechanism and an electric screw driver. The screw locking robot 133 drives the electric screw driver to move, and the automatic screw feeding mechanism automatically conveys the screws to the electric screw driver. The first carrier circulation conveyor line 13 is provided with a pressing and unlocking mechanism corresponding to the pressing and unlocking station. The pressing and unlocking mechanism includes a column 134. A fixed plate 135 is fixed on the top of the column 134. A first movable plate 136 is provided on the outer side of the fixed plate 135 so as to be movable laterally through a linear guide. Two second movable plates 137 are provided on the first movable plate 136 so as to be movable up and down through a linear guide. An unlocking hook plate 138 extending downward is fixed on the bottom of the second movable plate 137. The first movable plate 136 and the second movable plate 137 are both connected to a driving cylinder 4. The driving cylinder 4 drives the first movable plate 136 and the second movable plate 137 to move in coordination up and down and left and right, thereby driving the unlocking hook plate 138 to hook the pressing plate 124 and drive the pressing plate 124 to flip upward to unlock. A plurality of CCD visual positioning devices 139 for positioning the first carrier 12 during the conveying process are installed on the first frame 10 above the first carrier circulation conveyor line 13. The inspection station 13d is provided with an inspection device 6 for inspecting whether the product has any missing screws.

The first unloading mechanism 15 is arranged at the first unloading station 13e, including an unloading robot 150 and an unloading clamp 151 for placing the product and the product carrier on the empty carrier return line 16 and the second carrier 17 respectively. The second carrier 17 is arranged on the first discharge channel of the automatic screw locking device 1, and its outer wall is provided with a groove for easy clamping. The unloading clamp 151 is installed on the driving end of the unloading robot 150. The unloading robot 150 adopts a four-axis robot. The unloading clamp 151 includes a second mounting plate 5b. The driving end of the four-axis robot is connected to the second mounting plate 5b. The four corners of the second mounting plate 5b are provided with long strip-shaped external through holes, and the external through holes are penetrated with external clamps 152. The top ends of the two external clamps 152 on the same side are connected to the first movable seat 153. The first movable seat 153 is installed on the second mounting plate 5b through a linear guide rail, and the two driving cylinders 4 drive the two first movable seats 153 to approach each other and then drive the bottom ends of the four outer clamps 152 to extend into the outer groove 121 of the first carrier 12 to clamp the first carrier 12, and four long inner through holes are opened on the second mounting plate 5b on the inner side of the area surrounded by the four outer clamps 152, and the inner through holes are each penetrated by an inner clamp 154, and the top ends of the two inner clamps 154 on the same side are connected to the second movable seat 155, and the second movable seat 155 is installed on the second mounting plate 5b through a linear guide rail, and the two driving cylinders 4 drive the two second movable seats 155 to approach each other and then drive the bottom ends of the four inner clamps 154 to extend into the inner groove 123 of the first carrier 12 to clamp the product.

The automatic panel pasting device 2 includes a second frame 20, a second loading mechanism 21, a second carrier 17, a second carrier circulation conveyor line 22, a decorative ring assembly mechanism 23, a panel pasting mechanism 24, a product turning mechanism 25, a rear shell locking screw mechanism 26 and a finished product unloading mechanism 27.

The second feeding mechanism 21 includes a feeding drive assembly and a second feeding gripper 210. The product is placed on the second carrier 17 with its front side facing upward. The feeding drive assembly includes a feeding turntable 211 and a feeding transplanting module. The feeding turntable 211 can be rotatably assembled at the feeding port on the second frame 20 and is driven by a servo motor. The feeding transplanting module includes a feeding transverse movement module 212 and a feeding lifting module 213. The second feeding gripper 210 is installed on the feeding lifting module 213 through a connecting plate. The feeding lifting module 213 is installed on the feeding transverse movement module 212 through a connecting plate. The feeding transverse movement module 212 drives the feeding lifting module 213 to reciprocate in the horizontal direction. The loading and lifting module 213 drives the second loading clamp 210 to reciprocate in the up and down directions. The second loading clamp 210 includes a third mounting plate 5c, and the third mounting plate 5c is fixed to the connecting plate on the loading and lifting module 213. Four clamps 214 are movably provided on the outer side of the third mounting plate 5c. The top ends of the two clamps 214 located on the same side are respectively connected to two third movable seats 215. The two third movable seats 215 are assembled on the third mounting plate 5c through linear guide rails. The two driving cylinders 4 drive the two third movable seats 215 to approach and then drive the bottom ends of the four clamps 214 to extend into the groove on the outer wall of the second carrier 17 to clamp it.

The second carrier circulation conveyor line 22 adopts an annular structure, which includes a conveying device driven by a servo motor and a synchronous belt, a second loading station, a decorative ring assembly station, a cover pressing station, a panel veneer station and a flipping and unloading station. The conveying device drives the second carrier 17 from the second loading station to pass through the decorative ring assembly station, the cover pressing station, the panel veneer station and the flipping and unloading station in sequence. The end of the second carrier circulation conveyor line 22 is provided with a third transverse movement mechanism 220 for conveying the second carrier 17 from the second loading station to the decorative ring assembly station. The second frame 20 is provided with a carrier positioning mechanism for transferring the second carrier 17 to the corresponding station for positioning. The carrier positioning mechanism is composed of a driving cylinder and a positioning plate. The second frame 20 is provided with a decorative ring assembly mechanism 23 on the outer side of the decorative ring assembly station. The decorative ring assembly mechanism 23 includes a mounting frame and a decorative ring automatic feeding mechanism 230 , a decorative ring picking module, a decorative ring suction head 231, a cover pressing cylinder 232 and a cover pressing head 233. The decorative ring picking module is installed on one side of the installation frame, and includes a decorative ring picking drive module 234 and a decorative ring picking cylinder 235. The decorative ring picking cylinder 235 is installed on the decorative ring picking drive module 234 through a connecting plate. The decorative ring suction head 231 is installed on the driving end of the decorative ring picking cylinder 235. The cover pressing cylinder 232 is installed Installed on the other side of the mounting frame, the pressing head 233 for pressing the cover is connected to the driving end of the pressing cylinder 232, and the automatic feeding mechanism 230 for the decorative ring includes a vibration disk 236, a feeding channel 237, a feeding plate 238 and a feeding cylinder 239. The vibration disk 236 sends the decorative ring to the feeding plate 238 through the feeding channel 237, and the feeding cylinder 239 pushes the feeding plate 238 to push a decorative ring at the outlet of the feeding channel 237 to the material picking position.

The panel veneering mechanism 24 includes a panel loading line 240, a plurality of storage racks 241 and a first robot 242, a film tearing platform 243, a film tearing gripper and a second robot 244. Panels are stacked in the plurality of storage racks 241 in the up and down directions. The panel loading line 240 drives the storage racks 241 to move. The driving ends of the first robot 242 and the second robot 244 are both provided with panel suction cups 245. The first robot 242 absorbs the top panel from the storage rack 241 and moves to the film tearing platform 243 and cooperates with the film tearing gripper to tear the film. Then the second robot 244 absorbs the torn panel and moves it to the top of the carrier on the panel veneering station and bonds the panel to the product.

The product flipping mechanism 25 includes a first flipping frame 250, a first flipping motor 251 and a first flipping lifting module 252. The middle part of the first flipping frame 250 is assembled on the first fixed plate 253 through a rotating shaft. The first fixed plate 253 is installed on the first flipping lifting module 252 through a connecting plate. First flipping clamps 254 are provided at both ends of the first flipping frame 250. One of the first flipping clamps 254 on the first flipping frame 250 clamps the product from the flipping unloading station. The first flipping motor 251 drives the first flipping frame 250 to rotate 180° so that the back of the product faces upward.

The rear shell screw locking mechanism 26 includes a rear shell screw locking dividing turntable 260, a rear shell screw locking mechanism and a product positioning mechanism. The bottom of the rear shell screw locking dividing turntable 260 is connected to a dividing turntable driving motor, and the rear shell screw locking dividing turntable 260 is provided with four workstations for feeding, locking screws, discharging and function expansion in a "cross" shape. Each workstation is provided with a plurality of positioning blocks 261, and the plurality of positioning blocks 261 surround an area for positioning the product. A notch is provided in one corner of the area. The product positioning mechanism is provided corresponding to the notch, and includes a positioning cylinder 262 and a positioning head 263. When the rear shell is screwed, the positioning cylinder 262 drives the positioning head 263 to tighten the product from the notch. The rear shell screw locking mechanism includes a three-axis drive module 264 and an automatic screw locking device 265. The automatic screw locking device 265 is installed on the output end of the three-axis drive module 264 through a connecting plate. The finished product unloading mechanism 27 corresponds to the unloading station setting of the rear shell locking screw dividing turntable 260, which includes a second flip frame 270, a second flip motor 271 and a second flip lifting module 272. One end of the first flip frame 270 is assembled on the second fixed plate 273 through a rotating shaft, and the second fixed plate 273 is installed on the second flip lifting module 272 through a connecting plate. The other end of the first flip frame 270 is provided with a second flip clamp 274. After the second flip clamp 274 clamps the product from the unloading station of the rear shell locking screw dividing turntable 260, the second flip motor 271 drives the second flip frame 270 to flip outward and send the product to the second unloading channel.

The assembly process of the above-mentioned electronic blood pressure monitor automatic assembly line includes the following steps:

1) The product is manually pressed and fixed on the first carrier 12, and then placed on the loading conveyor line 110. The lifting platform 111 conveys the first carrier 12 to the material picking position. The driving cylinder 4 drives the four loading grippers 116 to grab the first carrier 12 and then transfer the first carrier 12 to the first loading station 13a.

2) The first carrier 12 is transported from the first loading station 13a to the screw locking station 13b by the first transverse movement mechanism 131, and the conveying device then automatically transports the first carrier 12 through each screw locking station 13b in sequence, and the internal components are fixed in the shell by the screw locking mechanism at each station, and the first carrier 12 is positioned at each station by the CCD visual positioning device 139 and the positioning mechanism 130.

3) When the first carrier 12 is conveyed to the clamping and unlocking station 13c, the clamping and unlocking mechanism automatically releases the fixing of the pressure plate 124 on the product, and after detection by the detection device 6, it is moved to the first unloading station 13e through the second transverse movement mechanism 132. The first unloading mechanism 15 grabs the first carrier 12 through the unloading jaws 151, and then opens the outer jaws 152 and the inner jaws 154 in steps, that is, first moves to the empty carrier return line 16, opens the outer jaws 152, and the first carrier 12 is automatically placed on the empty carrier return line 16, and then moves to the first discharge channel of the automatic screw locking device 1, and the inner jaws 154 are opened to place the product on the second carrier 17 at the discharge port.

4) When the second carrier 17 passes through the middle transition line 3, the film of the internal device is torn off manually, and then placed on the outside of the loading turntable 211. The loading turntable 211 rotates a certain angle to rotate the second carrier 17 to the inner material picking position, and the loading transverse movement module 212 and the loading lifting module 213 drive the second loading clamp 210 to the material picking position. The two driving cylinders drive the two third movable seats 215 to approach and then drive the bottom ends of the four clamps 214 to extend into the groove on the outer wall of the second carrier 17 to clamp it and send it to the second loading station of the second carrier circulation conveyor line 22.

5) The third transverse movement mechanism 220 transports the second carrier 17 from the second loading station to the decorative ring assembly station, the vibration plate 236 delivers the decorative ring to the feeding plate 238 through the feeding channel 237, the feeding cylinder 239 pushes the feeding plate 238 to push a decorative ring at the outlet of the feeding channel 237 to the picking position, and the decorative ring picking drive module drives the decorative ring suction head 231 to move to the picking position to suck the decorative ring and automatically put it into the decorative ring installation position on the product.

6) The conveying device conveys the second carrier 17 to the capping station. After the capping cylinder 232 drives the capping head 233 to perform the capping operation, the conveying device conveys the carrier to the panel pasting station.

7) The first robot 242 absorbs the top panel from the storage rack 241 and moves to the film-tearing platform 243 and cooperates with the film-tearing gripper to tear the film. Then the second robot 244 absorbs the torn panel and moves it to the top of the second carrier 17 on the panel-attaching station and attaches the panel to the product. The conveying device conveys the second carrier 17 to the flipping and unloading station.

8) One of the first flip grippers 254 on the first flip frame 250 grabs the product from the flip unloading station, and the first flip motor 251 drives the first flip frame 250 to rotate 180°, so that the back of the product is placed upward on the feeding station of the rear shell locking screw dividing turntable 260,

9) The dividing turntable driving motor drives the rear shell screw locking dividing turntable 260 to rotate 90°, so that the product is transferred from the feeding station to the rear shell screw locking station. The three-axis driving module 264 drives the automatic screw locking device 265 to screw the rear shell. After screwing, the dividing turntable driving motor drives the rear shell screw locking dividing turntable 260 to rotate 90° again, so that the product is transferred from the rear shell screw locking station to the discharging station.

10) After the second flip gripper 274 grabs the product from the discharging station of the rear shell locking screw dividing turntable 260, the second flip motor 271 drives the second flip frame 270 to flip outward to send the product to the second discharging channel.

The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above examples. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims (7)

1. An automatic assembly line for electronic sphygmomanometers, characterized in that it comprises an automatic screw locking device at the front section and an automatic panel pasting device at the rear section, wherein the automatic screw locking device and the automatic panel pasting device are connected by an intermediate transition line, wherein: The automatic screw locking device includes a first frame and a first feeding mechanism, a first carrier, a first circulating conveyor line, a plurality of screw locking mechanisms, a first unloading mechanism and an empty carrier return line arranged on the first frame. The first carrier is provided with a clamping mechanism for fixing the product. The first feeding mechanism includes a feeding conveyor line, a first lifting mechanism, a carrier transplanting mechanism and a first feeding clamp. The first circulating conveyor line includes a screw locking conveying device, a first feeding station, a plurality of screw locking stations, a clamping and unlocking station and a first unloading station. The first frame is provided with a clamping mechanism for each screw locking station. One side of each threading station is provided with a positioning mechanism for positioning the first carrier when locking screws, the plurality of screw locking mechanisms are provided corresponding to the plurality of screw locking stations, one side of the clamping and unlocking stations is provided with a clamping and unlocking mechanism for releasing the clamping mechanism from fixing the product, the first unloading mechanism is provided at the first unloading station, and includes an unloading robot and unloading clamps for placing the product and the first carrier on the empty carrier return line and the second carrier respectively, the second carrier is located in the first discharge channel, and the unloading clamp is installed on the driving end of the unloading robot; The automatic panel veneer device includes a second frame and a second feeding mechanism, a second carrier, a second carrier circulating conveying line, a panel veneer mechanism, a product turning mechanism, a rear shell screw locking mechanism and a finished product unloading mechanism arranged on the second frame. The second feeding mechanism includes a feeding drive assembly and a second feeding clamp. The second carrier circulating conveying line includes a panel veneer conveying device, a second feeding station, a panel veneer station and a turning and unloading station. A positioning mechanism for positioning the second carrier is arranged on the frame corresponding to the panel veneer station. The panel veneer mechanism includes a panel feeding assembly, a film tearing assembly and a panel veneer assembly. The product turning mechanism includes a first turning frame and a turning drive assembly. The first flip frame is provided with flip grippers at both ends, and the flip driving device drives the first flip frame to flip 180°. The rear shell screw locking mechanism includes a rear shell screw locking segmentation turntable and a rear shell screw locking mechanism. The rear shell screw locking segmentation turntable includes at least three stations for feeding, screw locking and discharging in sequence. The rear shell screw locking mechanism is arranged corresponding to the screw locking station. A product positioning mechanism for positioning the product when screwing is arranged on one side of the screw locking station. The finished product unloading mechanism includes a second flip frame and a flip driving device. The second flip frame is provided with flip grippers, and the flip driving device drives the second flip frame to flip to the second discharging channel. The first carrier comprises a carrier body, two outer grooves are correspondingly formed on two opposite outer side walls of the carrier body, and a cavity for positioning the product is provided in the middle of the carrier body, and two inner grooves are correspondingly formed on two opposite inner side walls of the cavity, and the clamping mechanism comprises a pressing plate and a flip limit seat, the flip limit seat is fixed on the carrier body, the pressing plate is hinged to the flip limit seat through a hinge shaft and can be selectively in a horizontal state and a vertical state, and the product on the product carrier is fixed when in the horizontal state, and the product on the product carrier is released when in the vertical state; The first lifting mechanism can be lifted and arranged at the discharge end of the feeding conveyor line, and it includes a lifting platform and a first lifting drive module. The carrier transplanting mechanism includes a second lifting mechanism, a first transverse movement mechanism and a first carrier clamping claw. The second lifting mechanism is connected to the first transverse movement mechanism, and the first carrier clamping claw is installed on the second lifting mechanism. The first transverse movement mechanism includes a transplanting frame, and a transverse movement drive module is fixed on the transplanting frame. A transverse movement connecting plate can be laterally moved on the transverse movement drive module. The second lifting mechanism includes a lifting plate lifted and installed on the transverse movement connecting plate, the lifting plate is connected to a lifting drive cylinder, and a cantilever extending outward is fixed on the lifting plate. The first carrier clamping claw includes a first mounting plate, four clamping claws, a transmission assembly and a first clamping drive cylinder. The first mounting plate is fixed to one side of the lifting plate and is located below the cantilever. The four corners of the first mounting plate are provided with long strip through holes extending along the two outer side walls of the outer groove, and the bottom ends of the four clamping hands are arranged through the through holes, and the top ends are connected to the first clamping driving cylinder through a transmission assembly, and the first clamping driving cylinder is vertically installed at the end of the cantilever and the driving rod is arranged downward, and the first clamping driving cylinder drives the bottom ends of the four clamping hands to enter the outer groove through the transmission assembly to clamp the product carrier. The transmission assembly includes two driving plates, a first connecting block, a second connecting block and a guide component, and the top ends of the two clamping hands located on the same side are connected to the first connecting block, a hinge shaft is provided on the first connecting block, and a guide component is provided between the first connecting block and the mounting plate, one end of the two driving plates is hinged on the corresponding first connecting block, and the other end is coaxially hinged on the second connecting block, and the driving rod of the first clamping driving cylinder is connected to the second connecting block; The carrier circulation conveyor line is also provided with a decorative ring assembly station and a cover pressing station, and a fourth transverse movement mechanism for conveying the second carrier from the loading station to the decorative ring assembly station is provided at the end of the carrier circulation conveyor line, the decorative ring assembly station and the cover pressing station are arranged in sequence between the loading station and the panel veneer station, a decorative ring assembly mechanism is arranged on the frame at the outer side of the decorative ring assembly station, the decorative ring assembly mechanism comprises an installation frame, a decorative ring automatic feeding mechanism, a decorative ring picking module, a decorative ring suction head, a cover pressing cylinder and a cover pressing head, the decorative ring picking module is installed on one side of the installation frame, and comprises a decorative ring picking drive module and a decorative ring picking cylinder, the decorative ring picking cylinder is installed on the decorative ring picking drive module through a connecting plate, the decorative ring suction head is installed on the driving end of the decorative ring picking cylinder, the cover pressing cylinder is installed on the other side of the installation frame, and the cover pressing head is connected to the driving end of the cover pressing cylinder. 2. The automatic assembly line for electronic sphygmomanometers according to claim 1 is characterized in that an inspection station is arranged between the pressing and unlocking station and the first unloading station on the first carrier circulation conveyor line, and a detection device for detecting whether a product has missed screws is arranged on the inspection station. The several screw locking stations, the pressing and unlocking stations and the inspection station are located on the same side of the first carrier circulation conveyor line, and the two ends of the first carrier circulation conveyor line are respectively provided with a second transverse movement mechanism for conveying the first carrier from the first loading station to the screw locking station and a third transverse movement mechanism for conveying the first carrier from the inspection station to the first unloading station. The several screw locking mechanisms are located on the outside of the first carrier circulation conveyor line, and all include a screw locking robot, an automatic screw feeding mechanism and a screw locking electric screw driver. The screw locking robot drives the screw locking electric screw driver to move, and the automatic screw feeding mechanism automatically conveys the screws to the screw locking electric screw driver. 3. The automatic assembly line of electronic blood pressure monitors according to claim 1 is characterized in that the clamping and unlocking mechanism is arranged on the inner side of the first carrier circulation conveyor line, and includes a column, a fixed plate is fixed on the top of the column, a first movable plate is arranged on the outer side of the fixed plate so as to be able to move laterally through a linear guide, at least one second movable plate is arranged on the first movable plate so as to be able to move up and down through a linear guide, an unlocking hook plate extending downward is fixed to the bottom of the second movable plate, the first movable plate and the second movable plate are both connected to a driving cylinder, the driving cylinder drives the first movable plate and the second movable plate to cooperate in up and down and laterally, thereby driving the unlocking hook plate to hook the pressure plate and drive the pressure plate to flip upward for unlocking. 4. The automatic assembly line of electronic sphygmomanometers according to claim 1 is characterized in that the unloading robot adopts a four-axis robot, the unloading clamping claw comprises a second mounting plate, the driving end of the four-axis robot is connected to the second mounting plate, the four corners of the second mounting plate are provided with long strip-shaped external through holes, the external through holes are penetrated with external clamping claws, the top ends of the two external clamping claws on the same side are connected to the first movable seat, the first movable seat is installed on the second mounting plate through a linear guide rail, the two driving cylinders drive the two first movable seats to approach and then drive the bottom ends of the four external clamping claws to extend into the outer groove of the product carrier to clamp the product carrier, and the second mounting plate is provided with four long strip-shaped internal through holes on the inner side of the area surrounded by the four external clamping claws, the internal through holes are penetrated with internal clamping claws, the top ends of the two internal clamping claws on the same side are connected to the second movable seat, the second movable seat is installed on the second mounting plate through a linear guide rail, the two driving cylinders drive the two second movable seats to approach and then drive the bottom ends of the four internal clamping claws to extend into the inner groove of the first carrier to clamp the product. 5. The automatic assembly line of electronic blood pressure monitors according to claim 1 is characterized in that the feeding drive assembly includes a feeding turntable and a feeding transfer module, the feeding turntable can be rotatably assembled at the feeding port on the frame and is driven by a servo motor, the feeding transfer module includes a feeding transverse movement module and a feeding lifting module, the second feeding clamp is installed on the feeding lifting module through a connecting plate, the feeding lifting module is installed on the feeding transverse movement module through a connecting plate, the feeding transverse movement module drives the feeding lifting module to reciprocate in the horizontal direction, and the feeding lifting module drives the feeding clamp to reciprocate in the up and down directions The panel loading assembly includes a panel loading line, a plurality of storage racks and a first robot. The plurality of storage racks are stacked with panels in an up-and-down direction. The panel loading line drives the storage racks to move. The film tearing assembly includes a film tearing platform and a film tearing clamp. The panel pasting assembly includes a second robot. The driving ends of the first robot and the second robot are both provided with panel suction cups. The first robot absorbs the top panel from the storage rack and moves to the film tearing platform and cooperates with the film tearing clamp to tear the film. Then the second robot absorbs the panel after film tearing and moves it to the top of the carrier on the panel pasting station and sticks the panel to the product. 6. The automatic assembly line of electronic blood pressure monitors according to claim 1 is characterized in that a dividing turntable driving motor is connected to the bottom of the rear shell locking screw dividing turntable, and the rear shell locking screw dividing turntable is provided with four workstations distributed in a "cross" shape for feeding, locking screws, discharging and function expansion, each workstation is provided with a number of positioning blocks, and the several positioning blocks form an area for positioning the product, a corner of the area is provided with a notch, the product positioning mechanism includes a positioning cylinder and a positioning head, and when the rear shell is locked, the positioning cylinder drives the positioning head to tighten a corner of the product. 7. The automatic assembly line of electronic blood pressure monitors according to claim 1 is characterized in that the middle part of the first flip frame is assembled on the first fixed plate through a rotating shaft, the rotating shaft is connected to the driving shaft of the first flip motor, the first fixed plate is installed on the first flip lifting module through a connecting plate, one end of the second flip frame is assembled on the second fixed plate through a rotating shaft, the rotating shaft is connected to the driving shaft of the second flip motor, and the second fixed plate is installed on the second flip lifting module through a connecting plate.