CN216882596U

CN216882596U - Press mounting mechanism for sealing cap valve body

Info

Publication number: CN216882596U
Application number: CN202123387636.0U
Authority: CN
Inventors: 段进军
Original assignee: Beijing Delphi Wanyuan Engine Management System Co ltd
Current assignee: Beijing Delphi Wanyuan Engine Management System Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-07-05
Anticipated expiration: 2031-12-30

Abstract

A press-fitting mechanism of a sealing cap valve body comprises a press, an upper tool, a lower tool and a rotary table, wherein the upper tool, the lower tool and the rotary table are sequentially arranged from top to bottom in the Z direction. The Z direction is the perpendicular direction. The lower tool is arranged on the periphery of the turntable. The lower tool can be located under the upper tool when the rotary table rotates to a corresponding angle, and the upper tool and the lower tool are clamped to position the valve body. The press drives the sealing cap to press the valve body, so that the sealing cap and the valve body are pressed. The utility model can reduce the bearing of parts irrelevant to press fitting in the assembly of the sealing cap and the valve body, can give up the defect of no pressure resistance of a rotary cylinder structure, has the positioning function, and can improve the stability of the supporting block so that the supporting block is not easy to deflect in the press fitting process, thereby improving the yield and the automation level of the assembly process of automobile parts.

Description

Press mounting mechanism for sealing cap valve body

Technical Field

The utility model relates to an assembly process, in particular to automatic assembly of a sealing cap of an electronic throttle valve body of an automobile part.

Background

In order to meet the requirement of the whole-line automation of the electronic throttle valve body, the automation of the assembly of the sealing cap must be considered. At present, in semi-automatic line, the assembly of valve body and sealing cap still is through the press assembly, but the clamp of valve body is realized through two "revolving cylinder", and there is the congenital defect in such clamping mode: on one hand, the assembly of the sealing cap and the valve body is interference assembly, the press-fitting force is 3000-5000N different, and the acting force can cause the damage of the rotary cylinder for a long time. On the other hand, because the 'roar support block' is of a profile modeling design and has a certain taper, under the action of higher load, the valve body can sideslip, so that the press-fitting result is influenced. In addition, long-time press fitting can cause abrasion of the support block and loosening of the support core, and certain difficulty is brought to maintenance.

Therefore, a product is needed to solve the above problems, and on one hand, the product can reduce the bearing of parts which are not related to press mounting in the assembly of the sealing cap and the valve body. On the other hand, the pressure-proof defect of the rotary cylinder structure can be avoided, and the positioning function is achieved. In addition, the stability of the supporting block can be improved, so that the supporting block is not easy to deflect during press mounting. Therefore, the defects in the prior art are overcome, and the yield and the automation level of the assembly process of the automobile parts are improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a press mounting mechanism for a sealing cap valve body, which can reduce the pressure bearing of parts irrelevant to press mounting in the assembly of the sealing cap and the valve body, can give up the non-pressure-resistant defect of a rotary cylinder structure, has a positioning function, can improve the stability of a supporting block, and enables the supporting block not to deflect easily during press mounting, thereby improving the yield and the automation level of the assembly process of automobile parts.

In order to achieve the purpose, the utility model provides a press mounting mechanism for a sealing cap valve body, which comprises a press, and an upper tool, a lower tool and a turntable which are sequentially arranged from top to bottom in the Z direction. The Z direction is the perpendicular direction. The lower tool is arranged on the periphery of the turntable. The lower tool can be located right below the upper tool when the rotary table rotates to a corresponding angle, and the upper tool and the lower tool are clamped to position the valve body. The press drives the sealing cap to press the valve body, so that the sealing cap and the valve body are pressed.

Preferably, the press-fitting mechanism of the sealing cap valve body further comprises a fixed cylinder. A fixed cylinder, an upper tool, a lower tool and a turntable are sequentially arranged from top to bottom in the Z direction. The fixed cylinder is located right above the upper tool, so that the upper tool is pushed to press the lower tool, and the upper tool and the lower tool are clamped to position the valve body.

Preferably, the press is disposed in the X direction of a perpendicular line to the Z direction formed by the upper and lower tools, and is lower than the upper tool than the lower tool. The pressure head of the press is used for positioning and press-fitting the sealing cap. The X direction is perpendicular to the Z direction. The upper tool and the lower tool are valve body positioning structures, and the structures are matched with the valve body in shape and used for positioning the valve body during press mounting. The valve body positioning structure enables the valve body assembling surface to be parallel to the rotary disc surface. The rotary table rotates to switch the lower tool.

Preferably, the pressure head of the press is a vacuum adsorption mechanism. The vacuum adsorption mechanism is used for adsorbing the sealing cap from a material taking position and keeping the assembly surface of the sealing cap parallel to the surface of the rotary table to be fixed on the pressure head through adsorption force. The pressure head drives the sealing cap to press the valve body positioned between the upper tool and the lower tool through clamping of the upper tool and the lower tool along the X direction, so that the sealing cap is pressed on the valve body. The X direction is perpendicular to the Z direction.

Preferably, the press-fitting mechanism of the sealing cap valve body further comprises a feeding mechanism. The feeding mechanism is used for feeding the sealing cap to a material taking position. The feeding mechanism comprises a material cutting cylinder used for separating the sealing caps. The feeding mechanism comprises an Y, Z-direction propelling cylinder and a clamping jaw. The Y direction is perpendicular to the X direction and the Z direction. The pushing cylinder is used for pushing the separated sealing cap to the clamping position of the clamping jaw near the material taking position. The sealing cap at the clamping position is clamped and fixed at the material taking position by the clamping jaw, and the vacuum adsorption mechanism is waited to adsorb the sealing cap from the material taking position.

Preferably, the Y, Z directional propulsion cylinder includes: the linear cylinder pushing the clamping jaw along the Y direction and the jacking cylinder pushing the sealing cap along the Z direction. The sealing cap moves forwards along the Y direction through the linear cylinder and then rises to the clamping position along the Z direction through the jacking cylinder.

Preferably, the upper tool comprises a pressing plate, a supporting core and a supporting block. The supporting core is fixed on the bottom surface of the pressing plate. The supporting block is fixed on the press-fitting stress side of the supporting core. A plurality of spring guide rods are arranged around the supporting core and provide supporting force for clamping the valve body when the fixed cylinder presses down, so that the valve body is positioned in the vertical direction and is guaranteed not to incline when being pressed.

As the preferred mode, sealing cap valve body pressure equipment mechanism still includes frock relocation mechanism for ensure that the holding power is abundant and the pressure of press is fully acted on the valve body in sealing cap and the valve body assembling process. Go up the frock and be provided with groove structure. Go up frock relocation mechanism includes: the upper tool floating guide rod and the floating block which is nested in the groove structure of the upper tool and can slide along the X direction. The middle part of the floating block is provided with a supporting core through hole along the Z direction, and the supporting core penetrates through the supporting core through hole along the Z direction and extends out of the floating block. Four spring guide rods are respectively fixed on four corners of the floating block for positioning the valve body. The floating block is connected to the groove structure in a sliding mode through the upper tool floating guide rod.

As the preferred mode, the press mounting mechanism of the sealing cap valve body also comprises a lower tool floating mechanism, which is used for ensuring sufficient supporting force in the assembling process of the sealing cap and the valve body and accurate positioning in the press mounting process of the valve body. The lower tool floating mechanism comprises a pressure-bearing base and a lower tool outer floating tool. The lower tool is fixed with a positioning structure of the valve body, and the lower tool is supported and fixed on a pressure-bearing base which cannot float. The outer floating tool of the lower tool is a frame structure nested on the outer side of the lower tool. The positioning structure of the valve body is completely surrounded in the frame structure. The frame structure is floatable up and down in the Z-direction.

Preferably, the press-fitting mechanism of the sealing cap valve body further comprises a feeding floating mechanism. The feeding mechanism floating mechanism is used for supporting the feeding mechanism to enable the feeding mechanism to elastically float during vacuum adsorption, so that the sealing cap fully extends into the vacuum adsorption mechanism, and the vacuum at the sealing cap can be stably adsorbed on the pressure head when reaching a set value. The feeding floating mechanism comprises a feeding floating guide rod in the vertical direction. The feeding floating guide rod is connected with the feeding mechanism in a sliding mode, so that the feeding mechanism can slide back and forth along the X direction.

Compared with the prior art, the utility model can reduce the pressure bearing of parts irrelevant to press fitting in the assembly of the sealing cap and the valve body, can give up the defect of no pressure resistance of a rotary cylinder structure, has the positioning function, and can improve the stability of the supporting block so that the supporting block is not easy to deflect during press fitting. The utility model solves the automation of the assembly of the sealing cap and the stability and the precision of the assembly through the design of the floating mechanism and the automatic feeding technology, thereby greatly improving the yield and the automation level of the assembly process of the automobile parts.

The utility model can greatly improve the stability and reliability of the assembly of the turntable, not only ensures the assembly quality of the sealing cap, but also can not cause the damage of the turntable due to the direct action of acting force on the turntable. The improved press-fitting structure, floating feeding technology and press-fitting floating technology have certain guiding significance for the automation of other assembling and testing equipment. In one aspect, the floating design of the loading mechanism of the present invention ensures stability of the sealing cap during assembly to the ram. On the other hand, the floating design of the upper tool solves the risk that the press-fitting force acts on the turntable, and ensures that the acting force acts on the upper tool instead of the turntable during press-fitting. This plays a great role in extending the service life of the turntable. In addition, the floating design of the lower tool solves the problem of positioning of the valve body in the vertical direction, ensures the valve body to be clamped and prevents the valve body from inclining due to larger press-fitting force.

Drawings

Fig. 1 is a schematic diagram of an upper tool and an upper tool floating mechanism.

Fig. 2 is a schematic diagram of a lower tool and a lower tool floating mechanism.

FIG. 3 is a schematic view of a support structure of the lower tool floatation mechanism.

Fig. 4 is a schematic view of a feeding floating mechanism.

Fig. 5 is a schematic view showing the floating direction of the press-fitting mechanism of the seal cap valve body of the present invention.

Fig. 6 is a schematic perspective view of the press-fitting mechanism of the seal cap valve body according to the present invention.

Fig. 7 is a top view of the seal cap valve body press-fitting mechanism of the present invention.

Fig. 8 is a schematic view of the press ram of the sealing cap.

Fig. 9 is a schematic structural view of the sealing cap.

Fig. 10 is a schematic view of the assembly structure of the sealing cap and the valve body.

Fig. 11 is a schematic view of a valve body positioning press-fit mechanism of the prior art.

Fig. 12 is a flow chart of the assembly of the seal cap valve body.

Detailed Description

Hereinafter, embodiments of the seal cap valve body press-fitting mechanism of the present invention will be described with reference to the drawings.

The embodiments described herein are specific embodiments of the present invention, are intended to be illustrative and exemplary in nature, and are not to be construed as limiting the scope of the utility model. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which employ any obvious replacement or modification of the embodiments described herein.

The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of respective portions and their mutual relationships. It should be noted that the drawings are not necessarily drawn to the same scale in order to clearly illustrate the structures of the various elements of the embodiments of the utility model. The same reference numerals are used to designate the same or similar parts. Further, when the description is made with reference to the drawings, directional words such as "upper", "lower", etc. are employed for convenience of description, and they do not constitute specific limitations on the structure of the features.

Example one

As shown in fig. 6, in this embodiment, the seal cap valve body press-fitting mechanism includes a press 5, and an upper tool 6, a lower tool 34, and a turntable 11 which are sequentially provided from top to bottom in the Z direction. In fig. 6, the lower tool 34 is located inside the lower tool floating mechanism 10, as shown in fig. 2, a plurality of lower tools 34 are arranged on a turntable, and fig. 2 shows two types of lower tools 34. The lower tool 34 at the lower right is a lower tool 34 with a floating mechanism (i.e., the lower tool 34 of the second embodiment), and the positioning component of the lower tool 34 is wrapped inside the floating mechanism of the lower tool. The upper left lower tool 34 does not have a floating mechanism, i.e., the lower tool 34 of the present embodiment. The Z direction is the perpendicular direction. The lower tool 34 is disposed on the periphery of the turntable 11. The lower tool 34 can be positioned right below the upper tool 6 when the turntable 11 rotates to a corresponding angle, and the upper tool 6 and the lower tool 34 are clamped to position the valve body 38. The schematic view of the sealing cap is shown in fig. 9, the schematic view of the valve body is shown in fig. 10, and the schematic view of the valve body is shown in fig. 8. The press 5 drives the sealing cap 17 to press the valve body 38, so that the sealing cap 17 and the valve body 38 are pressed. More specifically, the seal cap valve body press-fitting mechanism is fixed on the seal cap press-fitting support frame 2. As shown in fig. 6 and 7, the seal cap press-fitting support frame 2 is fixed in the seal cap assembling station 1.

The present embodiment further preferably further includes a fixing cylinder 9 in the seal cap valve body press-fitting mechanism. The fixed cylinder 9, the upper tool 6, the lower tool 34 and the turntable 11 are sequentially arranged from top to bottom in the Z direction. The fixed cylinder 9 is located right above the upper tool 6, thereby pushing the upper tool 6 to press the lower tool 34, so that the upper tool 6 and the lower tool 34 are clamped to position the valve body 38.

Further preferably, in the present embodiment, the press 5 is disposed in the X direction of the perpendicular line to the Z direction formed by the upper and lower tools 34, and the press 5 is lower than the upper tool 6 and higher than the lower tool 34. The ram 7 of the press 5 serves to position and press-fit the sealing cap 17. The X direction is perpendicular to the Z direction. The upper tool 6 and the lower tool 34 are valve body positioning structures which are matched with the shape of the valve body 38 to position the valve body 38 during press mounting. The valve body positioning structure enables the valve body assembling surface to be parallel to the rotary disc surface. The turntable 11 rotates to switch the lower tool 34.

The present embodiment further preferably further includes a feeding mechanism for the press-fitting mechanism of the sealing cap valve body. The feeding mechanism is used for feeding the sealing cap 17 to a material taking position. The feeding mechanism comprises a blanking cylinder 16 for separating a plurality of sealing caps 17. The feed mechanism includes an Y, Z directional propulsion cylinder, and jaws 22. The Y direction is perpendicular to the X and Z directions. The pushing cylinder is used to push the separated sealing cap 17 towards the gripping position of the gripping jaws 22 near the level of the take-up. The clamping jaws 22 clamp and fix the sealing cap 17 at the clamping position at the material taking position, and wait for the vacuum adsorption mechanism 12 to adsorb the sealing cap 17 from the material taking position.

Further, as shown in fig. 6, the feeding mechanism further includes a vibration plate 4, a vibration plate 3, and a vibration plate passage 18 for separating the sealing cap 17 by vibration. The vibration disk circular vibrator 3 is arranged below the vibration disk 4, and the vibration disk 4 is communicated with the vibration disk material channel 18. A material cutting cylinder 16 is arranged near the discharge hole of the vibration disc material channel 18. The vibration plate 3 vibrates to urge the vibration plate 4 and the vibration material channel 18 to vibrate. The plurality of sealing caps 17 are fed into the vibrating tray 4, fall into the vibrating tray passage 18 by being vibrated, and move forward toward the discharge port by being vibrated in the vibrating tray passage 18. The sealing caps 17 are separated by vibration through the vibration material channel 18, and then are cut and sent to the jacking position through the material cutting cylinder 16 of the discharge hole, and the single sealing cap 17 is blocked from the front and the back, so that the sealing caps 17 are separated one by one completely. The seal cap 17 at the lift position is raised to the grip position by the lift cylinder 15.

Further preferably, as shown in fig. 4 and 8, the Y, Z directional propulsion cylinder includes: a linear cylinder pushing the clamping jaw 22 along the Y direction and a jacking cylinder 15 pushing the sealing cap 17 along the Z direction. The seal cap 17 is advanced in the Y direction by the linear cylinder and then raised in the Z direction to the gripping position by the lift cylinder 15. Thus facilitating automatic feeding.

More specifically, as shown in fig. 4, the feeding mechanism further includes a rotation cylinder 21 for turning the gripping jaw 22, and a clamp cylinder for controlling the opening and closing of the gripping jaw 22. The linear cylinder pushes the rotary cylinder 21, the clamping cylinder and the clamping jaw 22 to the clamping position to clamp the sealing cap 17 of the clamping position. After the clamping jaw 22 reaches the clamping position, the clamping cylinder and the rotating cylinder 21 respectively control the clamping jaw 22 to close and turn so as to clamp the sealing cap 17.

Further preferably, as shown in fig. 8, the ram 7 of the press 5 is a vacuum suction mechanism 12. The vacuum adsorption mechanism 12 is used for adsorbing the sealing cap 17 from a material taking position, and keeps the assembly surface of the sealing cap 17 parallel to the rotary table surface through adsorption force to be fixed on the pressure head 7. The pressure head 7 drives the sealing cap 17 to press the valve body 38 positioned by the clamping of the upper and lower tools 34 between the upper and lower tools 34 along the X direction, so that the sealing cap 17 is pressed on the valve body 38. The X direction is perpendicular to the Z direction.

As shown in fig. 8, the pressure head 7 drives the vacuum adsorption mechanism 12 to move to the jacking position for taking a workpiece, and adsorbs the sealing cap 17 in the clamping jaw 22. After the pressure head 7 finishes taking the workpiece, the linear cylinder drives the rotary cylinder 21 and the clamping cylinder to retreat, and the clamping jaw 22 resets. The press 5 with the sealing cap 17 continues to move forward and press against the valve body 38, completing the assembly of the sealing cap 17 with the valve body 38.

Further preferably, as shown in fig. 1, the upper tool 6 includes a pressing plate, a supporting core 28 and a supporting block 27. The support core 28 is fixed to the bottom surface of the platen. The supporting block 27 is fixed to the press-fitting force-receiving side of the supporting core 28. A plurality of spring guides 26 are provided around the support core 28 to provide a supporting force for clamping the valve body 38 when the fixing cylinder 9 is pressed down, thereby positioning the valve body 38 in the vertical direction and ensuring that the valve body 38 is not inclined when press-fitted.

It is further preferred that the lower tool 34 comprises positioning pins (29, 30) and a valve body 38 support surface 31 for positioning the valve body 38 and providing a support force for clamping the valve body 38 when the fixing cylinder 9 is pressed down, as shown in fig. 2.

Compared with the prior art, the utility model can reduce the pressure bearing of parts irrelevant to press mounting in the assembly of the sealing cap 17 and the valve body 38, can eliminate the defect of non-pressure resistance of the structure of the rotary cylinder 21, has the positioning function, and can improve the stability of the supporting block 27 so that the supporting block is not easy to deflect during press mounting. The utility model solves the automation of the assembly of the sealing cap 17 and the stability and the precision of the assembly through the design of the floating mechanism and the automatic feeding technology, thereby greatly improving the yield and the automation level of the assembly process of the automobile parts.

Example two

Compared with the first embodiment, the difference of the second embodiment is that the press-fitting mechanism of the sealing cap valve body further comprises an upper tool 6 floating mechanism, a lower tool floating mechanism 10 and a feeding floating mechanism. The tooling floating mechanism and the lower tooling floating mechanism 10 are used for ensuring that the supporting force is sufficient in the assembling process of the sealing cap 17 and the valve body 38. The feeding mechanism floating mechanism is used for supporting the feeding mechanism to enable the feeding mechanism to elastically float during vacuum adsorption, so that the sealing cap 17 fully extends into the vacuum adsorption mechanism 12 to ensure that the vacuum at the sealing cap 17 reaches a set value and can be stably adsorbed on the pressure head 7.

Fig. 5 shows the floating directions of the upper tool 6 floating mechanism, the lower tool floating mechanism 10 and the feeding floating mechanism. The direction a is that the upper tool floating mechanism drives the upper tool to float along the X direction. And the direction b is that the lower tool floating mechanism drives the lower tool to float along the X direction. And the feeding floating mechanism drives the feeding mechanism to float along the X direction in the c direction. The d direction, i.e. the vertical movement direction of the stationary cylinder, is the Z direction. e represents the press moving direction as the X direction. f represents the turntable orientation being clockwise. g represents that the motion direction of the linear cylinder is the Y direction. h represents that the moving direction of the jacking cylinder is the Z direction. And i represents that the moving direction of the blanking air cylinder is the Y direction.

Further preferably, as shown in fig. 1, the upper tool 6 floating mechanism includes a slider and upper tool floating guide rods (24, 25). The upper tooling 6 comprises a sliding groove structure. The slider is slidably attached to the groove structure by upper tooling floating guides (24, 25) 19. Two groove arms of the groove structure are arranged in the press-fitting X direction of the press 5, and groove arm through holes are formed in the corresponding positions of the two groove arms along the X direction. The slider is also provided with a slider through-hole in the X direction. The upper tool floating guide rods (24, 25)19 penetrate through the floating block through holes, and two ends of the upper tool floating guide rods are respectively fixed in the groove arm through holes at corresponding positions. The slider can slide along the upper tooling floating guide rods (24, 25)19 in the sliding groove structure in the X direction. The middle part of the floating block is provided with a support core 28 through hole along the Z direction, and the support core 28 penetrates through the support core 28 through hole along the Z direction to extend out of the floating block. At the same time, the supporting block 27 fixed to the press-fitting force receiving side of the supporting core 28 is also exposed from the through hole of the supporting core 28. The through hole of the supporting core 28 has a certain gap from the supporting core 28 in each direction, so that the floating block and the valve body 38 can not float along the X direction when the press mounting is stressed. Four spring guides 26 are secured at each of the four corners of the slider to resiliently and floatingly position the valve body 38 during press fitting. When the press 5 is assembled, the tooling is forced in the X direction from the near press end channel arm to advance the valve body 38 until the slider abuts the far press end channel arm, thereby ensuring that the pressure of the press 5 is sufficient on the valve body 38 and the support core 28.

The floating design of the upper tooling 6 is to ensure that the acting force is along the X direction when the press 5 is pressed. At this time, the turntable 11 is not rotated, and thus the press-fitting X direction of the upper tool 6 is a perpendicular direction of a tangent line of the point turntable 11. The upper tool 6 is provided with two upper tool floating guide rods (24, 25). The upper tool floating guide rod (24, 25)19 can enable the floating block to drive the valve body 38 to move in the X direction, when the press 5 continues to advance, the valve body 38 continues to move towards the rotary disc 11 until the support block 27 on the force receiving side of the press-fitting on the support core 28 can sufficiently support the throat position of the valve body 38, and the assembling force in the process is usually 3000-5000N. During press fitting of the press 5, the throat position of the valve body 38 can be fully supported by the support block 27 of the upper tool 6.

More specifically, when the press-fitting cycle is started, the fixing cylinder 9 moves downwards to fix the valve body 38 with the spring guide rod 26, the spring guide rod 26 and the floating block are floating, and the support core 28 and the support block 27 of the upper tool 6 are fixed during the press-fitting of the sealing cap 17 by the press 5. The floating design is designed to ensure that the press-fitting force of the press 5 is fully applied to the support core 28 and the support block 27, thereby ensuring sufficient support force during the assembly of the sealing cap 17 and the valve body 38.

In this embodiment, it is further preferable that the press-fitting mechanism of the sealing cap and the valve body further includes a lower tool floating mechanism 10, as shown in fig. 2, for ensuring sufficient supporting force during the assembling process of the sealing cap 17 and the valve body 38 and accurate positioning during the press-fitting process of the valve body 38. The lower tool floating mechanism 10 comprises a pressure-bearing base and a lower tool 34 outer floating tool. The lower tool 34 is fixed with a positioning structure of the valve body 38, and the lower tool 34 is supported and fixed on a pressure-bearing base which cannot float. The outer floating tool of the lower tool 34 is a frame structure nested outside the lower tool 34. The locating structure of the valve body 38 is completely surrounded within the frame structure. The frame structure is floatable up and down in the Z-direction.

More specifically, as shown in fig. 3, the lower tool floating mechanism 10 further includes a pressure-bearing top plate, a pressure-bearing bottom plate, a bushing 35, a vertical guide rod 36, a pressure-bearing base, and a vertical spring 37. The lower tool 34 is fixed on the pressure-bearing base. A vertical spring 37 and a vertical guide rod 36 are arranged between the pressure bearing top plate and the pressure bearing bottom plate. A connecting frame is arranged between the pressure-bearing top plate and the pressure-bearing bottom plate to form a lower floating tool 34. One end of the vertical spring 37 is fixed with a pressure bearing top plate, and the other end is fixed with the vertical guide rod 36. The vertical guide rod 36 passes through the through hole of the pressure-bearing bottom plate and is fixed on the pressure-bearing base. The Z direction is sequentially provided with a pressure bearing top plate, a vertical spring 37, a vertical guide rod 36, a pressure bearing bottom plate and a pressure bearing base from top to bottom. The bushing 35 is nested outside the vertical guide 36. The pressure-bearing top plate, the pressure-bearing bottom plate, the vertical guide rod 36, the pressure-bearing base and the vertical spring 37 enable the pressure-bearing top plate, the pressure-bearing bottom plate and the frame on the outer side of the lower tool 34 to float up and down when receiving acting force in the Z direction. The bottom of the pressure-bearing base can be fixed on a sealing cap press-mounting support frame 2 which can not float up and down along the Z direction or lower tooling floating guide rails (32, 33).

As shown in fig. 2, the outer floating design of the lower tool 34 of the lower tool floating mechanism 10 is only for the outer floating tool of the lower tool 34, and the inner lower tool 34 is only for storing the workpiece. The floating design here works in conjunction with the upper tooling 6. When the press 5 presses the sealing cap 17, along with the movement of the press 5, the valve body 38 moves in the floating tool outside the lower tool 34 along the X direction until the supporting block 27 of the upper tool 6 is completely stressed. In addition, under the condition that the valve body 38 is not stressed, the valve body 38 is placed in a floating tool outside the lower tool 34 in a floating mode, when the fixed cylinder 9 is pressed downwards, the vertical spring 37 can be compressed, and at the moment, the bottom of the upper tool 6 can be in contact with the upper or lower tool floating guide rails (32, 33) of the sealing cap press-fitting support frame 2 to receive upward supporting force in the Z direction, so that the valve body 38 is accurately positioned and pressed in the Z direction. This design is highly desirable because the valve body 38 may tilt during assembly, thereby affecting assembly. The floating mechanism of the upper and lower tools 34 provides a clamping force in the Z direction, so that the valve body 38 can be accurately positioned in the Z direction during press fitting of the valve body 38, and the valve body 38 can always move in the X direction of press fitting and cannot be deviated in the Z direction.

The present embodiment further preferably provides that the lower tool floating mechanism 10 includes a set of lower tool floating rails (32, 33) slidably attached to the bottom of the lower tool 34. The lower tool floating guide rails (32, 33) enable the lower tool 34 to slide back and forth along the press-fitting direction X. When the press 5 is assembled, the lower tool 34 is forced to retract towards the rotary table 11 in the opposite direction of the pressure, thereby ensuring that the pressure of the press 5 is fully applied to the valve body 38 and not to the rotary table 11.

Further preferably, as shown in fig. 4, the feeding floating mechanism includes vertically-oriented feeding floating guide rods (19, 20). The floating feed guide rods (19, 20) are slidably connected to the feed mechanism so that the feed mechanism can slide back and forth in the X direction. Since the movement of the ram 7 is performed by the press 5, if there is no forward or backward movement of the floating guide rod 19, it may occur that the force of the press 5 is applied to the feeding mechanism as shown in fig. 4, causing damage to the feeding mechanism. Therefore, the feeding floating mechanism can protect the feeding mechanism. On the other hand, the floating design of the feeding floating mechanism can ensure that the sealing cap 17 can be correctly assembled in the pressure head 7 during vacuum adsorption. Without this floating design, it is possible that the vacuum at the sealing cap 17 may not reach the set value during the movement of the ram 7 to extract material, at which point the sealing cap 17 may fall off.

More specifically, the feeding floating guide rods (19, 20) are mounted on the back plate 13 of the feeding mechanism. As shown in fig. 4 and 8, the feeding floating mechanism further includes a sliding table cylinder 23 and a feeding floating guide rail 14. The feeding floating guide rail 14 is arranged at the bottom of the feeding mechanism along the Y direction, and the sliding table cylinder 23 pushes the feeding mechanism to slide along the feeding floating guide rail 14.

The automatic feeding device realizes the automatic feeding of the sealing cap 17, the vacuum adsorption of the sealing cap 17, the floating design of the feeding, the floating design of the press mounting and the supporting design of the press mounting. All floating designs of the utility model are designed to match with the sealing cap 17 for taking and assembling, the floating directions of the feeding floating mechanism and the upper tooling 6 floating mechanism are all along the X direction of press mounting of the press 5, thus ensuring that the acting force of the press 5 is not applied to the feeding mechanism and the turntable 11 to cause mechanism damage, and simultaneously ensuring that the valve body 38 is fully stressed during assembling. The outer frame structure of the lower fixture 34 floats in the Z direction, so that the valve body 38 is accurately positioned during press fitting, and the valve body 38 is prevented from shifting. The lower tool 34 can slide along the lower tool floating guide rails (32, 33) in the X direction, so that the valve body 38 can be fully stressed during press fitting. The floating design improves the press-fitting efficiency and the press-fitting rhythm, has high space integration level and strong maintainability, and realizes high-load assembly on the turntable 11.

As shown in fig. 12, the detailed operation flow of the present invention is as follows:

1. the vibration disk 4 sends the sealing cap 17 to the position of the blanking cylinder 16 by the vibration means of circular vibration and direct vibration of the circular vibration 3 structure of the vibration disk;

2. the material cutting cylinder 16 sends the sealing cap 17 to the position of the jacking cylinder 15;

3. the material cutting cylinder 16 is reset to take off a sealing cap 17;

4. the jacking cylinder 15 jacks to a clamping position;

5. a sliding table cylinder 23 in the floating feeding mechanism 8 pushes the feeding mechanism to slide to a clamping position along a feeding floating guide rail 14 in the Y direction;

6. the rotating cylinder 21 rotates by 90 degrees to change the angle of the clamping jaw 22;

7. the clamping cylinder controls the clamping jaw 22 to clamp the sealing cap 17 and fix the sealing cap on the material taking position;

8. the jacking cylinder 15 is reset;

9. the press 5 moves forwards to a sealing cap 17 for taking material;

10. the vacuum adsorption mechanism 12 is opened to adsorb the sealing cap 17 to the pressure head 7, at the moment, the upper tooling floating guide rods (24 and 25) have a certain floating amount, and the press 5 moves forwards to ensure that the sealing cap 17 is adsorbed on the pressure head 7;

11. the clamping cylinder controls the clamping jaw 22 to open;

12. the rotary cylinder 21 rotates for 90 degrees to reset and control the angle resetting of the clamping jaw 22;

13. the sliding table cylinder 23 slides to bring the floating feeding mechanism 8 to return;

14. the press 5 waits for a signal that the valve body 38 is in position with the sealing cap 17;

15. after the valve body 38 is in position, the fixed cylinder 9 drives the upper tool 6 to press down, and at the moment, the bush 35, the vertical guide rod 36 and the vertical spring 37 are compressed, so that the stress of the sealing cap press-mounting support frame 2 is ensured;

16. the press 5 continues to move forward, and the sealing cap 17 is pressed into the valve body 38 according to the preset pressure;

17. the press 5 is returned to the original position;

18. the stationary cylinder 9 is reset.

As shown in fig. 11, the assembly of the valve body and the sealing cap in the prior art is still assembled by a press, but the clamping of the valve body is realized by two 'rotating cylinders'. The rotary cylinder comprises a first rotary cylinder 41 and a second rotary cylinder 42, and the valve body is supported and positioned by a support block 40 and a support core 39. Such a clamping method has inherent drawbacks: on one hand, the assembly of the sealing cap and the valve body is interference assembly, the press-fitting force is 3000-5000N different, and the acting force can cause the damage of the rotary cylinder for a long time. On the other hand, because the 'throat supporting block' is in a copying design and has a certain taper, the valve body can sideslip under the action of higher load, and the press-mounting result is influenced. In addition, long-time press fitting can cause abrasion of the support block and loosening of the support core, and certain difficulty is brought to maintenance.

The utility model can greatly improve the stability and reliability of the assembly of the rotary table 11, not only ensures the assembly quality of the sealing cap 17, but also can not cause the damage of the rotary table 11 because the acting force directly acts on the rotary table 11. The improved press-fitting structure, floating feeding technology, press-fitting floating technology and vibrating disk 4 technology have certain guiding significance for the automation of other assembling and testing equipment. On the one hand, the floating design of the loading mechanism of the present invention ensures the stability of the sealing cap 17 during assembly to the ram 7. On the other hand, the floating design of the upper tool 6 solves the risk that the press-fitting force acts on the rotary table 11, and ensures that the acting force acts on the upper tool 6 instead of the rotary table 11 during press-fitting. This has a great effect on extending the life of the turntable 11. In addition, the floating design of the lower tool 34 of the present invention solves the problem of positioning the valve body 38 in the vertical direction, and ensures that the valve body 38 is clamped so as not to tilt due to a relatively large press-fitting force.

The embodiment of the seal cap valve body press-fitting mechanism of the present invention has been described above for the purpose of explaining the spirit of the present invention. Note that those skilled in the art can modify and combine the features of the above-described embodiments without departing from the spirit of the present invention, and therefore, the present invention is not limited to the above-described embodiments. The specific features of the sealing cap valve body press-fitting mechanism of the present invention, such as shape, size and position, can be specifically designed by the function of the above disclosed features, and such designs can be realized by those skilled in the art. Moreover, the technical features disclosed above are not limited to the combinations with other features disclosed, and other combinations between the technical features can be performed by those skilled in the art according to the purpose of the utility model to achieve the aim of the utility model.

Claims

1. The press-fitting mechanism of the sealing cap valve body is characterized by comprising a press, an upper tool, a lower tool and a turntable, wherein the upper tool, the lower tool and the turntable are sequentially arranged in the Z direction from top to bottom; the Z direction is the vertical direction; wherein,

the lower tool device is arranged at the periphery of the turntable; the lower tool can be positioned right below the upper tool when the turntable rotates to a corresponding angle, and the upper tool and the lower tool are combined to position the valve body;

the press drives the sealing cap to press the valve body, so that the sealing cap and the valve body are pressed.

2. The press-fitting mechanism of the sealing cap valve body according to claim 1, further comprising a fixed cylinder; wherein,

the fixed cylinder, the upper tool, the lower tool and the turntable are sequentially arranged in the Z direction from top to bottom;

the fixed cylinder is located right above the upper tool, so that the upper tool is pushed to press towards the lower tool, and the upper tool and the lower tool are clamped to position the valve body.

3. The seal cap valve body press-fitting mechanism according to claim 1,

the press is arranged in the X direction of a perpendicular line of the Z direction formed by the upper tool and the lower tool, and the press is lower than the upper tool and higher than the lower tool; the pressing head of the press is used for positioning and press-fitting the sealing cap; wherein the X direction is perpendicular to the Z direction;

the upper tool and the lower tool are valve body positioning structures, and the structures are matched with the valve body in shape and used for positioning the valve body during press mounting; the valve body positioning structure can enable the valve body assembling surface to be parallel to the rotary disc surface;

the rotary table rotates to switch the lower tool.

4. The seal cap valve body press-fitting mechanism according to claim 1,

the pressure head of the press is a vacuum adsorption mechanism; wherein,

the vacuum adsorption mechanism is used for adsorbing the sealing cap from a material taking position, and keeps the assembly surface of the sealing cap parallel to the surface of the rotary table through adsorption force and is fixed on the pressure head; and,

the pressure head drives the sealing cap to press the valve body positioned between the upper tool and the lower tool through clamping of the upper tool and the lower tool along the X direction, so that the sealing cap is pressed on the valve body; wherein the X direction is perpendicular to the Z direction.

5. The press-fitting mechanism of a sealing cap valve body according to claim 4, further comprising a feeding mechanism; the feeding mechanism is used for feeding the sealing cap to a material taking position;

the feeding mechanism comprises a material cutting cylinder and is used for separating the sealing caps;

the feeding mechanism comprises propelling cylinders in the Y direction and the Z direction and clamping jaws; wherein the Y direction is perpendicular to the X direction and the Z direction;

the pushing cylinder is used for pushing the separated sealing cap to the clamping position of the clamping jaw near the material taking position;

the clamping jaw clamps and fixes the sealing cap at the clamping position on the material taking position, and waits for the vacuum adsorption mechanism to adsorb the sealing cap from the material taking position.

6. The seal cap valve body press-fitting mechanism according to claim 5,

the Y, Z directional propulsion cylinder includes:

the linear cylinder pushes the clamping jaw along the Y direction and the jacking cylinder pushes the sealing cap along the Z direction;

the sealing cap moves forwards along the Y direction through the linear cylinder and then rises to a clamping position along the Z direction through the jacking cylinder.

7. The seal cap valve body press-fitting mechanism according to claim 2,

the upper tool comprises a pressing plate, a supporting core and a supporting block; wherein,

the supporting core is fixed on the bottom surface of the pressing plate;

the supporting block is fixed on the press-mounting stress side of the supporting core;

a plurality of spring guide rods are arranged around the supporting core and provide supporting force for clamping the valve body when the fixed cylinder presses down, so that the valve body is positioned in the vertical direction and is ensured not to incline when in press mounting.

8. The press-fitting mechanism of a sealing cap valve body according to claim 7, further comprising an upper tool floating mechanism for ensuring that the supporting force is sufficient and the pressure of the press is sufficiently applied to the valve body during the assembling process of the sealing cap and the valve body; wherein,

the upper tool is provided with a groove structure; and, go up frock relocation mechanism includes: the upper tool floating guide rod and the floating block which is nested in the groove structure of the upper tool and can slide along the X direction;

the middle part of the floating block is provided with a supporting core through hole along the Z direction, and the supporting core penetrates through the supporting core through hole along the Z direction and extends out of the floating block;

the four spring guide rods are respectively fixed on four corners of the floating block and used for positioning the valve body;

the floating block is connected to the groove structure in a sliding mode through the upper tool floating guide rod.

9. The press-fitting mechanism of a sealing cap valve body according to claim 1, further comprising a lower tool floating mechanism for ensuring sufficient supporting force during the assembling process of the sealing cap and the valve body and accurate positioning during the press-fitting process of the valve body; the lower tool floating mechanism comprises a pressure-bearing base and a lower tool outer floating tool;

a positioning structure of a valve body is fixed on the lower tool, and the lower tool is supported and fixed on the pressure-bearing base which cannot float;

the lower tool outer floating tool is a frame structure nested on the outer side of the lower tool; the positioning structure of the valve body is completely surrounded in the frame structure; the frame structure is floatable up and down in the Z-direction.

10. The press-fitting mechanism of a sealing cap valve body according to claim 5, further comprising a material loading floating mechanism; the feeding floating mechanism is used for supporting the feeding mechanism to enable the feeding mechanism to elastically float during vacuum adsorption, so that the sealing cap fully extends into the vacuum adsorption mechanism to ensure that the vacuum at the sealing cap reaches a set value and can be stably adsorbed on the pressure head; wherein,

the feeding floating mechanism comprises a feeding floating guide rod in the vertical direction; and the feeding floating guide rod is connected with the feeding mechanism in a sliding manner, so that the feeding mechanism can slide back and forth along the X direction.