Spin riveting mechanism

Abstract

The utility model provides a spin riveting mechanism which comprises a workbench, a transfer assembly, a pressing assembly and a spin riveting assembly, a tool assembly is arranged on the workbench, the tool assembly is provided with a first fixing position and a second fixing position, and the limiting direction of the first fixing position intersects with the limiting direction of the second fixing position; the transfer assembly comprises a translation driving device, a first up-down driving device and a first material taking assembly, the first material taking assembly is arranged above the tool assembly, the first up-down driving device can drive the first material taking assembly to move up and down, and the translation driving device can drive the first material taking assembly to move back and forth in the first direction; the pressing assembly is arranged on the first side of the tool assembly and comprises a downward pressing piece and a downward pressing driving device, and the downward pressing driving device can drive the downward pressing piece to move to the position above the tool assembly; the spin riveting assembly is arranged on the second side of the tool assembly. The device has the advantages of being simple in structure, convenient to operate and high in working efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to hinge production equipment field, concretely relates to a spin riveting mechanism. BACKGROUND

[0002] The prior art provides a hinge assembling spin riveting mechanism, which comprises a hinge circulating supply assembly, a spin riveting machine, a hinge pressing assembly and a hinge pressing assembly, the hinge circulating supply assembly comprises a divider turntable and a plurality of hinge jigs, the hinge pressing assembly is used for pressing and fixing the hinge on the hinge jig from top to bottom, the hinge pressing assembly is used for pressing the hinge away from the side of the spin riveting machine, and the spin riveting machine can rivet two parts of the hinge together through spin riveting. SUMMARY

[0003] The utility model discloses a spin riveting mechanism which is simple in structure and convenient to operate.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a spin riveting mechanism, which comprises a workbench, a transfer assembly, a pressing assembly and a spin riveting assembly, the workbench is provided with a tool assembly, the tool assembly is provided with a first fixing position and a second fixing position, the limiting direction of the first fixing position intersects with the limiting direction of the second fixing position, the transfer assembly comprises a translation driving device, a first up-down driving device and a first material taking assembly, the first material taking assembly is arranged above the tool assembly, the first up-down driving device can drive the first material taking assembly to move up and down, and the translation driving device can drive the first material taking assembly to move back and forth along a first direction, the pressing assembly is arranged on the first side of the tool assembly, and the pressing assembly comprises a pressing piece and a pressing driving device, the pressing driving device can drive the pressing piece to move to the top of the tool assembly, and the pressing piece and the tool assembly have a preset height in the up-down direction, and the spin riveting assembly is arranged on the second side of the tool assembly.

[0005] According to the above-mentioned scheme, the limiting direction of the first fixing position intersects with the limiting direction of the second fixing position, which is beneficial to limiting the workpiece from two horizontal directions and preventing the workpiece from being deviated in position during spin riveting, compared with the prior art, the utility model does not need to press the workpiece from one side of the tool assembly, the pressing piece is arranged and limited in position from the top to bottom through the cooperation of the first fixing position and the second fixing position, the spin riveting assembly is arranged and used for spin riveting operation from one side of the workpiece, the transfer assembly is arranged and used for feeding and discharging the workpiece, and the working efficiency is improved.

[0006] Further, the limiting direction of the first fixing position is perpendicular to the first direction, and the limiting direction of the second fixing position is parallel to the first direction.

[0007] Further, the first fixing position comprises two oppositely arranged first supporting blocks, and the first supporting blocks are provided with L-shaped grooves, and the two L-shaped grooves are oppositely arranged and form an accommodating groove; and the second fixing position comprises two oppositely arranged second supporting blocks, and the second supporting blocks are provided with U-shaped grooves which are open upward.

[0008] According to the above scheme, by arranging the accommodating groove and the U-shaped groove, the workpiece is placed in the accommodating groove and the U-shaped groove at the same time, which is beneficial to the positioning of the workpiece.

[0009] Further, the pressing assembly further comprises a first fixing seat, a second fixing seat, a wedge block and a sliding block, the first fixing seat is arranged on one side of the second fixing seat, the wedge block is movably arranged in the first fixing seat, the wedge block is movably arranged in the second fixing seat, the downward driving device can drive the wedge block to move up and down, the wedge block can force the sliding block to move along the second direction, the second direction is perpendicular to the first direction, and the pressing piece is arranged at one end of the sliding block away from the wedge block and on the outside of the second fixing seat.

[0010] According to the above scheme, by arranging the wedge block and the sliding block, the up-down movement can be converted into horizontal movement, so that the pressing piece moves horizontally to the top of the workpiece to press the workpiece.

[0011] Further, one end of the sliding block close to the wedge block is provided with a roller, and the roller is in rolling cooperation with the inclined surface of the wedge block.

[0012] According to the above scheme, by arranging the roller in rolling cooperation with the inclined surface of the wedge block, it is beneficial to change the sliding friction into roller friction, and it is beneficial to reduce the friction force of the wedge block pushing the sliding block to move.

[0013] Further, the pressing piece extends along the second direction, the pressing piece comprises a column body and a wrapping layer wrapped outside the column body, and the wrapping layer is made of flexible material.

[0014] According to the above scheme, by arranging the wrapping layer made of flexible material, on the one hand, it avoids scratching the surface of the workpiece during movement, and on the other hand, it ensures that the pressing piece can effectively press on the top wall of the workpiece.

[0015] Further, the spin riveting assembly comprises a spin riveting machine and an in-position detection device, and the in-position detection device is arranged on one side of the spin riveting end of the spin riveting machine.

[0016] Further, the transferring assembly further comprises a fixing frame, a translation frame and a first lifting frame, the translation frame and the first lifting frame are movably connected to the fixing frame, and the first material taking assembly is arranged on the translation frame or the first lifting frame.

[0017] According to the above scheme, the first clamp is arranged to clamp the workpiece, and the first pushing-down piece is arranged to push down the rotatable part on one end of the workpiece.

[0018] Further, the number of tool assemblies is greater than two, all the tool assemblies are arranged in the first direction, and the spacing between adjacent two tool assemblies is equal, the number of first material taking assemblies is equal to the number of tool assemblies, and the first material taking assemblies are arranged in one-to-one correspondence with the tool assemblies.

[0019] According to the above scheme, the above arrangement facilitates simultaneous spin riveting operation on more than two workpieces, and is beneficial to further improve work efficiency.

[0020] Further, the transferring assembly further comprises a second material taking assembly and a second up-down driving device, the second material taking assembly is arranged on the translation frame and on one side of the first material taking assembly, the second material taking assembly can be translated in the first direction synchronously with the first material taking assembly, and the second up-down driving device can drive the second material taking assembly to move up and down.

[0021] According to the above scheme, the second material taking assembly is arranged to clamp the workpiece from the previous work station and transfer it to the first tool assembly, so as to realize automatic feeding of the workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural diagram of an embodiment of the utility model.

[0023] Figure 2 is an exploded view of the tool assembly and the workpiece in an embodiment of the utility model.

[0024] Figure 3 is a structural diagram of the tool assembly and the pressing assembly in an embodiment of the utility model.

[0025] Figure 4 is a structural diagram of the spin riveting assembly in an embodiment of the utility model.

[0026] Figure 5 is a structural diagram of the tool assembly and the transferring assembly in an embodiment of the utility model.

[0027] The utility model will be further described below in combination with the drawings and embodiments. DETAILED DESCRIPTION

[0028] Referring toFigure 1 The spin riveting mechanism provided by the embodiment comprises a workbench 1, a transfer assembly 3, a pressing assembly 4 and a spin riveting assembly 5.

[0029] The workbench 1 is provided with a plurality of tool assemblies 2 for fixing workpieces, and four tool assemblies 2 are taken as an example in the embodiment, which are arranged along a first direction X and have equal spacing between adjacent two tool assemblies 2.

[0030] The number of the pressing assembly 4 and the spin riveting assembly 5 is equal to that of the tool assemblies 2, and the pressing assembly 4, the spin riveting assembly 5 and the tool assemblies 2 are arranged one by one. The pressing assembly 4 and the spin riveting assembly 5 are arranged on the two sides of the tool assemblies 2 along a second direction Y, and the second direction Y is perpendicular to the first direction X.

[0031] The transfer assembly 3 is arranged above all the tool assemblies 2.

[0032] Referring to Figure 2 The tool assembly 2 comprises a first fixing position 21 and a second fixing position 22 arranged along the first direction X, and the limiting direction of the first fixing position 21 intersects with that of the second fixing position 22. Preferably, the limiting direction of the first fixing position 21 is perpendicular to the first direction X, that is, the limiting direction of the first fixing position 21 is parallel to the second direction Y; and the limiting direction of the second fixing position 22 is parallel to the first direction X.

[0033] The first fixing position 21 comprises two first supporting blocks 211 oppositely arranged along the second direction Y, and the first supporting blocks 211 are provided with L-shaped grooves 2111 oppositely arranged and forming an accommodating groove, both ends of the accommodating groove are communicated, and the accommodating groove is provided with a slot opening upward. The groove wall of the L-shaped groove 2111 can limit the horizontal movement of the workpiece, and the groove bottom of the L-shaped groove 2111 can support the workpiece.

[0034] The second fixing position 22 comprises two second supporting blocks 221 oppositely arranged along the second direction Y, and the second supporting blocks 221 are provided with U-shaped grooves 2211 opening upward, the U-shaped grooves 2211 are recessed in the top wall of the second supporting blocks 221, and the U-shaped grooves 2211 extend along the second direction Y. The two U-shaped grooves 2211 are correspondingly arranged and communicated along the second direction Y.

[0035] The workpiece of the embodiment is a hinge assembly 6, which comprises a body 61 and a hinge cup 62, the hinge cup 62 can rotate up and down relative to the body 61, and the body 61 is provided with a pin shaft at one end. The two ends of the body 61 are arranged in the accommodating groove and the U-shaped groove 2211 respectively, and the pin shaft is arranged in the U-shaped groove 2211. The two side groove walls of the accommodating groove are used to limit the position deviation of the workpiece in the second direction Y, and the groove wall of the U-shaped groove 2211 is used to limit the position deviation of the workpiece in the first direction X. The L-shaped groove 2111 and the U-shaped groove 2211 can also support the workpiece and limit the downward position deviation of the workpiece.

[0036] Referring to Figure 3 The pressing assembly 4 comprises a first fixed seat 41, a second fixed seat 42, a pressing member 43, a pressing driving device 44, a wedge block 45 and a sliding block 46.

[0037] The first fixed seat 41 is arranged at one side of the second fixed seat 42. The pressing driving device 44 is arranged on the top wall of the first fixed seat 41, and the wedge block 45 is arranged in the first fixed seat 41 in a sliding manner and can pass through the bottom wall of the first fixed seat 41 downward. The driving end of the pressing driving device 44 extends into the first fixed seat 41 and is connected with the upper part of the wedge block 45. The lower part of the wedge block 45 is provided with a slope 451 extending along the up-down direction Z.

[0038] The sliding block 46 is connected in the second fixed seat 42 in a horizontal sliding manner, and both ends of the sliding block 46 pass through the second fixed seat 42. The first end of the sliding block 46 abuts against the slope 451 of the wedge block 45, and a spring (not shown in the figure) is further connected between the first end of the sliding block 46 and the first fixed seat 41. The second end of the sliding block 46 is provided with a stop block 47 and two pressing members 43. The stop block 47 is fixedly connected to the second end of the sliding block 46 and can abut against the end wall of the second fixed seat 42. The two pressing members 43 are arranged on the stop block 47 in the first direction X and extend in the second direction Y. In the up-down direction Z, the pressing members 43 have a preset height from the tool assembly 2, so that the pressing members 43 can be accurately pressed on the top wall of the workpiece after moving horizontally to the tool assembly 2. The pressing member 43 comprises a column body and a wrapping layer wrapped outside the column body, and the wrapping layer is made of a flexible material, which includes but is not limited to sponge, rubber, silica gel and the like.

[0039] The pressing driving device 44 can be a pneumatic cylinder or a hydraulic cylinder. The pressing driving device 44 can drive the wedge block 45 to move up and down, and the wedge block 45 can force the sliding block 46 to move back and forth in the second direction Y, so that the pressing members 43 can be moved to the position directly above the workpiece on the tool assembly 2 to press the workpiece, thereby avoiding the accidental upward displacement of the workpiece during the spin riveting process.

[0040] In order to reduce the friction between the wedge block 45 and the sliding block 46, a roller 48 is arranged on the first end of the sliding block 46, i.e. the end close to the wedge block 45. The roller 48 extends in the first direction X and can rotate around its own axis. The peripheral wall of the roller 48 is in rolling contact with the slope 451 of the wedge block 45.

[0041] In order to reduce the friction between the sliding block 46 and the second fixed seat 42, an oil groove is preferably arranged on the surface of the sliding block 46, and lubricating oil is arranged in the oil groove.

[0042] Referring to Figure 4 and combining Figure 1The spin riveting assembly 5 comprises a spin riveting machine 51 and an in-position detection device 52. The spin riveting machine 51 is arranged along the second direction Y. The spin riveting machine 51 can be a pneumatic spin riveting machine or a hydraulic spin riveting machine, which can rivet two parts of a workpiece together by spin riveting. The spin riveting machine 51 is a conventional technique in the field and will not be described here.

[0043] The in-position detection device 52 is arranged at the spin riveting end of the spin riveting machine 51. The in-position detection device 52 is used to detect whether there is a workpiece on the corresponding tool assembly 2 of the spin riveting machine 51. In this embodiment, the in-position detection device 52 can be a proximity switch or a photoelectric sensor.

[0044] Referring to Figure 5 The transfer assembly 3 comprises a fixed frame 31, a translation frame 32, a first lifting frame 33, a translation driving device 34, a first up-down driving device 35, a second material taking assembly 36, and four first material taking assemblies 37.

[0045] The fixed frame 31 extends along the first direction X. The translation frame 32 and the translation driving device 34 are both connected to the fixed frame 31. The translation driving device 34 can drive the translation frame 32 to move back and forth along the first direction X. The first up-down driving device 35 and the first lifting frame 33 are both connected to the translation frame 32. The first up-down driving device 35 can drive the first lifting frame 33 to move up and down. The four first material taking assemblies 37 are arranged on the first lifting frame 33 along the first direction X. The four first material taking assemblies 37 can be simultaneously translated along the first direction X and moved along the up-down direction Z.

[0046] The first material taking assembly 37 is arranged above the tool assembly 2 and corresponds to the tool assembly 2 one by one. The first material taking assembly 37 can move back and forth between two adjacent tool assemblies 2, which facilitates the transfer of the workpiece on the previous tool assembly 2 to the next tool assembly 2. The rear end of the last tool assembly 2 is provided with a material falling slide 7, which facilitates the discharge of the workpiece after spin riveting.

[0047] The first material taking assembly 37 comprises a first clamp 371 and a first pushing piece 372, which are arranged along the first direction X. The clamping opening of the first clamp 371 is arranged downward, which is used to clamp the body 61 of the hinge assembly 6. The first pushing piece 372 comprises a rod and a hammer head. The hammer head is fixedly connected to the lower part of the rod. When the first clamp 371 moves downward to clamp the hinge assembly 6, the first pushing piece 372 abuts against the hinge cup 62 and pushes the hinge cup 62 downward.

[0048] The front end of the translation frame 32 is provided with a second material taking assembly 36 and a second up-down driving device 38. The second material taking assembly 36 is arranged at the front end of all the first material taking assemblies 37, that is, the end away from the material falling slide 7. The second material taking assembly 36 can be translated along the first direction X synchronously with the first material taking assemblies 37; and the second up-down driving device 38 can independently drive the second material taking assembly 36 to move up and down. Specifically:

[0049] The front end of the translation frame 32 is provided with a mounting frame 39 and a second lifting frame 40. The mounting frame 39 is fixedly connected with the translation frame 32, the second lifting frame 40 is movably connected with the mounting frame 39, and a guide rail 50 and a guide rail seat 60 are connected between the second lifting frame 40 and the mounting frame 39. In the embodiment, the guide rail seat 60 is fixedly connected with the translation frame 32, the guide rail 50 is fixedly connected with the second lifting frame 40, and the second material taking assembly 36 is fixedly connected with the guide rail 50. The second up-down driving device 38 can be a pneumatic cylinder or a hydraulic cylinder, and the driving end of the second up-down driving device 38 is connected with the second lifting frame 40. The second up-down driving device 38 drives the second lifting frame 40, the guide rail 50 and the second material taking assembly 36 to move up and down.

[0050] In the first direction X, the spacing between the second material taking assembly 36 and the nearest first material taking assembly 37 is equal to the spacing between two adjacent first material taking assemblies 37. The second material taking assembly 36 is used to pick up the workpiece from the previous station and transfer it to the first tool assembly 2, so as to realize automatic feeding of the workpiece.

[0051] The structure of the second material taking assembly 36 is the same as that of the first material taking assembly 37, and will not be repeated here.

[0052] As can be seen from the above, the limiting direction of the first fixing position 21 intersects with the limiting direction of the second fixing position 22, which is conducive to limiting the position of the workpiece from two horizontal directions and preventing the workpiece from being offset during the spin riveting process. Compared with the prior art, the utility model does not need to clamp the workpiece from one side of the tool assembly 2; by arranging the pressing piece 43 and cooperating with the first fixing position 21 and the second fixing position 22, the position of the workpiece can be limited from the top and bottom in the opposite direction; by arranging the spin riveting assembly 5, spin riveting operation can be performed on one side of the workpiece; by arranging the transfer assembly 3, the feeding and discharging of the workpiece can be realized, which is conducive to improving the work efficiency.

[0053] Finally, it should be emphasized that the above is only the preferred embodiment of the utility model, and is not used to limit the utility model. For those skilled in the art, the utility model can have various changes and modifications, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A spin-riveting mechanism, characterized by, The utility model relates to a rotary riveting mechanism, including: A workbench is provided with a tooling assembly, the tooling assembly is provided with first fixed position and second fixed position, the limiting direction of first fixed position is crossed with the limiting direction of second fixed position; A transfer assembly includes a translation drive device, a first up-down drive device, and a first material taking assembly. The first material taking assembly is arranged above the tooling assembly. The first up-down drive device can drive the first material taking assembly to move up and down. The translation drive device can drive the first material taking assembly to move back and forth in a first direction; A pressing assembly is arranged on the first side of the tooling assembly. The pressing assembly includes a pressing member and a pressing drive device. The pressing drive device can drive the pressing member to move directly above the tooling assembly. In the up-down direction, the pressing member has a preset height from the tooling assembly; A rotary riveting assembly is arranged on the second side of the tooling assembly.

2. The rotary riveting mechanism according to claim 1, wherein: The limiting direction of the first fixed position is perpendicular to the first direction, and the limiting direction of the second fixed position is parallel to the first direction.

3. The rotary riveting mechanism according to claim 2, wherein: The first fixed position includes two oppositely arranged first supporting blocks. The first supporting blocks are provided with L-shaped grooves. The two L-shaped grooves are oppositely arranged and form an accommodating groove. The second fixed position includes two oppositely arranged second supporting blocks. The second supporting blocks are provided with upwardly open U-shaped grooves.

4. The rotary riveting mechanism according to claim 1, wherein: The pressing assembly further includes a first fixed seat, a second fixed seat, a wedge block, and a sliding block. The first fixed seat is arranged on one side of the second fixed seat. The wedge block is movably arranged in the first fixed seat. The wedge block is movably arranged in the second fixed seat. The pressing drive device can drive the wedge block to move up and down. The wedge block can force the sliding block to move in a second direction. The second direction is perpendicular to the first direction. The pressing member is arranged at the end of the sliding block away from the wedge block and on the outside of the second fixed seat.

5. The rotary riveting mechanism according to claim 4, wherein: The end of the sliding block close to the wedge block is provided with a roller. The roller is in rolling engagement with the inclined surface of the wedge block.

6. The rotary riveting mechanism according to claim 4, wherein: The pressing member extends in the second direction. The pressing member includes a column and a wrapping layer wrapped outside the column. The wrapping layer is made of flexible material.

7. The rotary riveting mechanism according to claim 1, wherein: The rotary riveting assembly includes a rotary riveting machine and an in-position detection device. The in-position detection device is arranged on one side of the rotary riveting end of the rotary riveting machine.

8. The rotary riveting mechanism according to claim 1, wherein: The transfer assembly further includes a fixed frame, a translation frame, and a first lifting frame. The translation frame and the first lifting frame are movably connected to the fixed frame. The first material taking assembly is arranged on the translation frame or the first lifting frame. The first material taking assembly comprises a first clamp and a first pushing-down piece, and the first clamp and the first pushing-down piece are arranged along the first direction.

9. The spin riveting mechanism according to claim 8, characterized in that: The number of the tooling assemblies is more than two, all the tooling assemblies are arranged along the first direction, and the intervals between adjacent tooling assemblies are equal. The number of the first material taking assemblies is equal to the number of the tooling assemblies, and the first material taking assemblies are arranged one by one corresponding to the tooling assemblies.

10. The spin riveting mechanism according to claim 8, characterized in that: The transfer assembly further comprises a second material taking assembly and a second up-down driving device, the second material taking assembly is arranged on the translation frame and on one side of the first material taking assembly, the second material taking assembly can be translated along the first direction synchronously with the first material taking assembly, and the second up-down driving device can drive the second material taking assembly to move up and down.

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