Nut riveting equipment capable of automatically feeding

Abstract

The utility model discloses nut riveting equipment capable of achieving automatic feeding, the nut riveting equipment capable of achieving automatic feeding comprises an equipment body, a feeding device, a conveying device and a riveting assembly, the feeding device comprises a feeding assembly, and the feeding assembly comprises a feeding arm, a feeding driving part, a fixing frame and at least one suction part; the feeding arm and the material suction part are oppositely arranged in the same vertical direction at intervals, the feeding arm is movably connected to the feeding driving part, the top of the feeding arm is arranged to be used for stacking a plurality of plates, the feeding driving part is installed on the fixing frame, the fixing frame is connected to the equipment body, and the feeding driving part is installed on the fixing frame. And the material suction pieces are kept on the moving path of the material supply arm, so that when the material supply arm moves towards the material suction pieces, each material suction piece is arranged to form negative pressure at the bottom so as to suck the plate, and the feeding device can convey the plate to be riveted to the riveting assembly.

Description

Technical Field

[0001] The utility model relates to the field of automobile component manufacturing, in particular to nut riveting equipment capable of automatic loading. Background Art

[0002] During the manufacturing process of crash boxes for automotive crash beams, a riveting device presses nuts into riveting holes on the back of a sheet material used to connect the crash box product according to manufacturing standards. However, existing riveting devices often require manual feeding of the sheet material onto a press table to allow the sheet material to be riveted.

[0003] However, during the entire riveting process, the riveting device needs to continuously press the nuts, which requires manual labor to provide the sheets to be riveted to the press table multiple times, thereby increasing the degree of manual intervention and affecting the overall riveting efficiency. Utility Model Content

[0004] In order to solve the above technical problems and achieve at least one advantage of the present invention, the present invention provides a nut riveting device with automatic loading, the nut riveting device with automatic loading comprising:

[0005] Equipment body;

[0006] A feeding device, the feeding device includes a feeding assembly, the feeding assembly includes a feeding arm, a feeding drive, a fixing frame and at least one suction member, wherein the feeding arm and the suction member are arranged opposite to and spaced apart in the same vertical direction, and the feeding arm is movably connected to the feeding drive, and the top of the feeding arm is configured to stack a plurality of sheet materials, the feeding drive is mounted on the fixing frame, and the fixing frame is connected to the equipment body, the suction member is maintained on the moving path of the feeding arm, and further when the feeding arm moves toward the suction member, each of the suction members is configured to form a negative pressure at the bottom to absorb the sheet materials;

[0007] a feeding device, the feeding device being arranged on the device body in a manner capable of conveying the sheet material adsorbed by the material adsorbing member;

[0008] A riveting assembly is arranged on the equipment body in a manner that can rivet a nut member onto the sheet material conveyed by the feeding device.

[0009] According to one embodiment of the present invention, the loading assembly also includes a supply and transfer component, which includes a supply and transfer drive and a belt transfer arm, wherein the belt transfer arm is movably connected to the supply and transfer drive, and the suction component is evenly arranged at the end of the belt transfer arm away from the supply and transfer drive.

[0010] According to one embodiment of the present invention, the loading device also includes a material limiting component, which is connected to the circumference of the feeding arm, and the top of the material limiting component extends vertically to form a material limiting space with the feeding arm, and the material limiting space is used to accommodate the sheet material carried by the feeding arm.

[0011] According to one embodiment of the present invention, the loading device also includes a material limiting component, which includes a loading platform and a plurality of material limiting parts, wherein the loading platform is connected to the equipment body, the material limiting parts are evenly connected to the top of the loading platform, and the material limiting parts extend vertically away from the other end of the loading platform to form at least one material limiting space with the loading platform, each of the material limiting spaces is configured to accommodate a predetermined number of the sheet materials, and the feeding arm is configured to be movable in the material limiting space.

[0012] According to one embodiment of the present invention, the feeding device includes a material clamping assembly and a material moving assembly, the material clamping assembly includes a pair of clamping arms and a material clamping driving component, wherein the two clamping arms are connected to the output end of the material clamping driving component relative to and spaced apart to form a clamping gap, the material clamping driving component is arranged on the material moving assembly, and the material clamping driving component is arranged to drive the two clamping arms to move relative to each other to adjust the size of the clamping gap to clamp the sheet material, and the material moving assembly is arranged on the equipment body in a manner that can transport the clamped sheet material to the riveting assembly.

[0013] According to one embodiment of the present utility model, the material moving assembly includes a pushing member, a vertical drive unit and a transverse drive unit, wherein the pushing member is installed at the output end of the vertical drive unit, and the clamping drive member is movably connected to the pushing member, the vertical drive unit is installed at the output end of the transverse drive unit, and the vertical drive unit is configured to drive the pushing member in the vertical direction so that the sheet material is opposite to the clamp, the transverse drive unit is arranged on the equipment body, and the transverse drive unit is configured to drive the vertical drive unit toward the riveting assembly in the horizontal direction.

[0014] According to one embodiment of the present invention, the riveting assembly includes a connecting frame, a riveting drive unit, a riveting component and a riveting table, wherein the connecting frame is connected to the equipment body, and the riveting drive unit is connected to the connecting frame, the riveting component is movably connected to the riveting drive unit, and the end of the riveting component away from the riveting drive unit forms a pressing portion, and the riveting drive unit is configured to drive the riveting component so that the pressing portion is pressed toward the riveting table, and the riveting component also evenly arranges a plurality of magnetic elements on the pressing portion so that the nut member is adsorbed on the pressing portion, and the riveting table has a riveting portion spaced a predetermined distance from the pressing portion, and the riveting portion has an arc-shaped riveting surface with an arc surface convex toward the pressing portion.

[0015] According to one embodiment of the present invention, the riveting assembly includes a connecting frame, a riveting drive unit, a riveting component and a riveting table, wherein the connecting frame is movably connected to the equipment body, and the riveting drive unit is connected to the connecting frame, the riveting component is movably connected to the riveting drive unit, and the end of the riveting component away from the riveting drive unit forms a pressing portion, and the riveting drive unit is configured to drive the riveting component so that the pressing portion is pressed toward the riveting table, and the riveting component also evenly arranges a plurality of magnetic elements on the pressing portion so that the nut member is adsorbed on the pressing portion, and the riveting table has two riveting portions spaced a predetermined distance from the pressing portion, the two riveting portions are arranged opposite to each other and at a predetermined distance, and each of the riveting portions has an arc-shaped riveting surface convex toward the pressing portion.

[0016] According to one embodiment of the present invention, the riveting component is further provided with a limiting portion at the position of the pressing portion, and the limiting portion extends outward in an integral manner along the axial direction by a predetermined length, and the limiting portion has an arc-shaped guide surface whose arc surface is convex and consistent with the extension direction, so that when the nut member is adsorbed on the pressing portion by the magnetic element, the limiting portion is arranged to at least partially penetrate the inner hole of the nut member.

[0017] According to one embodiment of the present invention, the riveting assembly also includes a pressing member, and the riveting platform forms a groove running through the riveting part, the pressing member includes a pressing rod and an elastic element, wherein the pressing rod is movably arranged in the groove, and the pressing rod is connected to one end of the elastic element, the other end of the elastic element away from the pressing rod is connected to the bottom wall forming the groove, and the elastic element is configured to press one end of the pressing rod so that the pressing rod is at least partially located outside the groove, and then when the pressing part is pressed toward the riveting platform, the pressing rod is abutted by the limiting portion and gradually accommodated in the groove, and presses the elastic element. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure shows a three-dimensional schematic diagram of the nut riveting device capable of automatic loading according to the present invention.

[0019] Figure 2 for Figure 1 An enlarged view of the partial structure of the nut riveting equipment with automatic loading is shown.

[0020] Figure 3 The schematic diagram of the structure of the nut riveting equipment capable of automatic loading according to the present invention is shown at another angle.

[0021] Figure 4 A schematic structural diagram of the loading device and part of the feeding device of the nut riveting equipment capable of automatic loading is shown in the utility model.

[0022] Figure 5 A structural schematic diagram of part of the feeding device and the detecting device of the nut riveting equipment capable of automatic loading of the present invention is shown.

[0023] Figure 6 A partial structural schematic diagram of the feeding device of the nut riveting equipment capable of automatic loading is shown in the utility model.

[0024] Figure 7 The schematic diagram of the structure of the riveting assembly in the nut riveting equipment capable of automatic loading of the present invention is shown.

[0025] Figure 8 for Figure 7 An enlarged view of the local structure of the riveting assembly is shown.

[0026] Figure 9 A cross-sectional view of the riveting assembly in the nut riveting equipment capable of automatic loading of the present invention is shown.

[0027] Figure 10 for Figure 9 The shown diagram is a partial enlarged view of the riveting assembly in a cross-sectional state.

[0028] Figure 11 A schematic diagram of the working state of the riveting assembly in the nut riveting equipment capable of automatic loading of the present invention is shown.

[0029] Figure 12 for Figure 11 An enlarged view of the local structure of the riveting assembly is shown. DETAILED DESCRIPTION

[0030] The following description is intended to disclose the present invention and enable those skilled in the art to implement the present invention. The preferred embodiments described below are provided for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention as defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0031] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms cannot be understood as limiting the present invention.

[0032] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0033] refer to Figures 1 to 4 According to a preferred embodiment of the present invention, a nut riveting device with automatic loading will be described in detail below. The nut riveting device with automatic loading includes an equipment body 10, a loading device 20, a feeding device 30 and a riveting assembly 40.

[0034] The loading device 20 is provided on the apparatus body 10 and is used to provide a sheet material 91 to the feeding device 30. The feeding device 30 is configured to convey the sheet material 91 provided by the loading device 20 to the riveting assembly 40. The riveting assembly 40 is configured to perform a riveting operation on the sheet material 91 conveyed by the feeding device 30.

[0035] like Figures 1 to 4 As shown, the loading device 20 includes a loading component 21 , and the loading component 21 can provide the sheet material 91 to the feeding device 30 .

[0036] Specifically, the loading assembly 21 includes a feeding arm 211, a feeding drive 212, a fixed frame 213 and at least one suction member 214, wherein the feeding arm 211 and the suction member 214 are arranged opposite to and spaced apart in the same vertical direction, and the feeding arm 211 is movably connected to the feeding drive 212, and the top of the feeding arm 211 is configured to carry the stacked sheet materials 91. The feeding drive 212 is mounted on the fixed frame 213. The fixed frame 213 is connected to the equipment body 10. The suction member 214 remains on the moving path of the feeding arm 211, and when the feeding drive 212 drives the feeding arm 211 to move, each of the suction members 214 is configured to form a negative pressure at the bottom to adsorb the sheet materials 91.

[0037] It can be understood by those skilled in the art that when the nut riveting equipment that can automatically load materials needs to rivet the sheet material 91, the feeding drive 212 is started to drive the feeding arm 211 to move toward the suction member 214, so that the sheet material 91 carried by the feeding arm 211 follows the movement of the feeding arm 211 and gradually moves toward the suction member 214. At this time, the bottom of the suction member 214 contacts the surface of the sheet material 91, and the suction member 214 also forms a negative pressure at the bottom, so that the sheet material 91 is adsorbed. Thus, the feeding device 30 can transport the adsorbed sheet material 91 to the riveting assembly 40.

[0038] Preferably, each of the suction members 214 is arranged to extend axially from the bottom to the top to form a connecting pipe portion 2141, one port of the connecting pipe portion 2141 is located at the bottom and connected to the outside world, and the other port of the connecting pipe portion 2141 is arranged to be connected to a negative pressure generating device, so that when the bottom of each of the suction members 214 is used to adsorb the sheet material 91, a negative pressure is formed at the bottom of each of the suction members 214 through the negative pressure generating device, so that the sheet material 91 can be adsorbed. At the same time, when the feeding device 30 needs to convey the adsorbed sheet material 91 to the riveting assembly 40, the negative pressure formed at the bottom of the suction member 214 can be quickly canceled by the negative pressure generating device, so that the feeding device 30 can complete the conveying operation as soon as possible.

[0039] Preferably, the loading assembly 21 also includes a supply and transfer member 215. Preferably, the supply and transfer member 215 includes a supply and transfer drive member 2151 and a belt transfer arm 2152, wherein the belt transfer arm 2152 is movably connected to the supply and transfer drive member 2151, and the suction member 214 is evenly arranged at the end of the belt transfer arm 2152 away from the supply and transfer drive member 2151.

[0040] It is understandable that when the feeding and moving driving member 2151 drives the belt moving arm 2152 to move, the material suction member 214 can be driven by the belt moving arm 2152 to gradually move toward the sheet material 91 on the feeding arm 211 to absorb the sheet material 91. In other words, the feeding arm 211 moves toward the material suction member 214 to shorten the total time that the material suction member 214 can absorb the sheet material 91, thereby facilitating improved overall riveting efficiency.

[0041] Preferably, the loading device 20 also includes a limiting component 22, which is used to limit the movement of the sheet material 91 located at the top of the feeding arm 211 when the feeding arm 211 moves, so as to prevent part of the sheet material 91 from being affected by the slight vibration generated by the feeding drive 212 driving the feeding arm 211 to move, thereby causing position displacement or falling from the top of the feeding arm 211.

[0042] In a modified embodiment, the material limiting member 22 is connected to the circumference of the feeding arm 211, and the top of the material limiting member 22 extends vertically to form a material limiting space 2201 with the feeding arm 211. The material limiting space 2201 is used to accommodate the sheet material 91 carried by the feeding arm 211, and then when the feeding drive member 212 drives the feeding arm 211 to move, with the help of the limiting effect of the material limiting member 22, each of the sheet materials 91 can gradually approach the suction member 214 along the extension direction of the material limiting member 22.

[0043] In a preferred embodiment, Figures 1 to 4 As shown, the material limiting member 22 includes a loading platform 221 and a plurality of material limiting members 222, wherein the loading platform 221 is connected to the equipment body 10. The material limiting members 222 are evenly connected to the top of the loading platform 221, and the other end of the material limiting member 222 away from the loading platform 221 extends vertically to form at least one material limiting space 2201 with the loading platform 221. Each of the material limiting spaces 2201 is configured to accommodate a predetermined number of the sheet materials 91. The feeding arm 211 is configured to be movable in the material limiting space 2201. In this way, due to the limiting effect of the material limiting member 222, the sheet materials 91 can move toward the material suction member 214 along the extension direction of the material limiting member 222 when the feeding drive member 212 drives the feeding arm 211 to move.

[0044] Preferably, the feeding drive 212 is implemented as, but not limited to, an electric cylinder. Each of the suction members 214 is implemented as a suction cup. The feeding and moving drive 2151 is implemented as a telescopic cylinder.

[0045] like Figure 6As shown, the feeding device 30 includes a clamping assembly 31 and a moving assembly 32, wherein the clamping assembly 31 is used to clamp the sheet material 91. The moving assembly 32 can drive the clamping assembly 31 to approach the sheet material 91 sucked by the suction member 214, and after the clamping assembly 31 clamps the sheet material 91, the moving assembly 32 transports the sheet material 91 clamped by the clamping assembly 31 to the riveting assembly 40.

[0046] Specifically, if Figure 5 As shown, the clamping assembly 31 includes a pair of clamping arms 311 and a clamping drive member 312, wherein the two clamping arms 311 are connected to the output end of the clamping drive member 312 in an opposed and spaced relationship to form a clamping opening 3101. The clamping drive member 312 is provided in the material moving assembly 32, and is configured to drive the two clamping arms 311 to move relative to each other to adjust the size of the clamping opening 3101, so that the size of the clamping opening 3101 is adapted to the size of the sheet material 91, thereby enabling the sheet material 91 to be clamped.

[0047] Preferably, the clamping driving member 312 is implemented as a pneumatic finger cylinder.

[0048] In a modified embodiment, the clamping assembly 31 includes a pair of clamping arms 311 and a clamping drive member 312, wherein the two clamping arms 311 are arranged relative to and spaced apart to form a clamping opening 3101, and one of the clamping arms 311 is movably connected to the output end of the clamping drive member 312. The clamping drive member 312 is provided in the material moving assembly 32, and is configured to drive one of the clamping arms 311 to move relatively closer to and away from the other clamping arm 311, so that the size of the clamping opening 3101 is adapted to the size of the sheet material 91, so that the sheet material 91 can be clamped by the clamping assembly 31. It is worth mentioning that in this embodiment, the clamping drive member 312 is implemented as a telescopic cylinder.

[0049] In another variant embodiment, the clamping assembly 31 includes a pair of clamping arms 311 and the same number of clamping drive members 312 as the clamping arms 311, wherein the two clamping arms 311 are arranged relative to each other and spaced apart to form a clamping opening 3101, and each clamping arm 311 is movably connected to the output end of one of the clamping drive members 312. The two clamping drive members 312 are both arranged in the material moving assembly 32, and then when the two clamping drive members 312 are started, the two clamping arms 311 can move closer to and away from each other to adjust the size of the clamping opening 3101, thereby making the size of the clamping opening 3101 compatible with the size of the sheet 91 so that the sheet 91 can be clamped. It should be noted that in this embodiment, the clamping drive member 312 is implemented as a telescopic cylinder. In addition, compared with the previous variant embodiment, the time used to clamp the sheet 91 in this embodiment is shorter, which is conducive to improving the overall efficiency of riveting the sheet 91.

[0050] To facilitate understanding of the present invention by those skilled in the art, the present invention will be described below using at least one embodiment in which the two clamping arms 311 are connected to the output ends of the clamping drive member 312 in a relative and spaced manner to form a clamping opening 3101. The clamping drive member 312 is provided in the material moving assembly 32, and is configured to drive the two clamping arms 311 to move relative to each other to adjust the size of the clamping opening 3101. In other words, the sheet material 91 adsorbed by the material suction member 214 can be clamped when the clamping drive member 312 drives the two clamping arms 311 to move relative to each other.

[0051] Specifically, in one example, the material moving assembly 32 includes a pushing member 321, a vertical drive unit 322, and a transverse drive unit 323, wherein the pushing member 321 is mounted at the output end of the vertical drive unit 322, and the clamping drive member 312 is movably connected to the pushing member 321. The vertical drive unit 322 is mounted at the output end of the transverse drive unit 323, and the vertical drive unit 322 is configured to drive the pushing member 321 in the vertical direction so that the sheet 91 is opposite to the clamp 3101. The transverse drive unit 323 is provided in the device body 10, and the transverse drive unit 323 is configured to drive the vertical drive unit 322 toward the riveting assembly 40 in the horizontal direction.

[0052] It can be understood that the vertical movement drive unit 322 is started to make the clamping assembly 31 as a whole be located at a predetermined position where the sheet material 91 can be maintained relative to the clamping opening 3101. At this time, the pushing member 321 is started to make the clamping assembly 31 as a whole close to the sheet material 91 adsorbed by the suction member 214 until the sheet material 91 is at least partially located in the clamping opening 3101. Thus, the size of the clamping opening 3101 is adjusted by driving the clamping arm 311 through the clamping drive member 312, so that the sheet material 91 can be clamped.

[0053] It is worth mentioning that when the clamping assembly 31 has clamped the sheet material 91 adsorbed by the suction member 214, the vertical drive unit 322 is started to drive the clamping assembly 31 and the clamped sheet material 91 to gradually move along the bottom of the suction member 214, so that the sheet material 91 is separated from the suction member 214 by a predetermined distance, and then the transverse drive unit 323 is started to drive the clamping assembly 31 as a whole, the vertical drive unit 322 and the clamped sheet material 91 to move toward the riveting assembly 40 until the sheet material 91 clamped by the clamping assembly 31 can be located in the area to be riveted.

[0054] Preferably, in this example, the pushing member 321 , the vertical drive unit 322 and the horizontal drive unit 323 are all implemented including but not limited to hydraulic cylinders and telescopic cylinders.

[0055] As an example, the transverse drive unit 323 includes a transverse drive member 3231 and a transmission member 3232, wherein the transverse drive member 3231 can be driven and driven to connect the transmission member 3232. The transmission member 3232 is connected to the device body 10, and the transmission member 3232 is arranged to extend toward the riveting assembly 40 to form a track, and the vertical drive unit 322 is driven and movably connected to the transmission member 3232, and then when the transverse drive member 3231 drives the transmission member 3232 to move the vertical drive unit 322, the clamping assembly 31 as a whole and the clamped sheet material 91 can be driven along the moving direction of the vertical drive unit 322 on the track. It should be noted that the transverse drive member 3231 is implemented as a motor. The transmission member 3232 is implemented to include a ball screw transmission device.

[0056] It is worth mentioning that the vertical movement drive unit 322 can also be configured to be composed of a motor and a ball screw transmission device.

[0057] Specifically, in one example, the riveting assembly 40 includes a connecting frame 41, a riveting drive unit 42, a riveting member 43, and a riveting table 44, wherein the connecting frame 41 is connected to the device body 10, and the riveting drive unit 42 is connected to the connecting frame 41. The riveting member 43 is movably connected to the riveting drive unit 42, and the end of the riveting member 43 away from the riveting drive unit 42 forms a pressing portion 431, and the riveting drive unit 42 is configured to drive the riveting member 43 so that the pressing portion 431 is pressed toward the riveting table 44. In addition, the riveting member 43 is also evenly provided with a plurality of magnetic elements 432 on the pressing portion 431 so that a nut member 92 is adsorbed on the pressing portion 431. The riveting platform 44 has a riveting portion 441 spaced a predetermined distance from the pressing portion 431 . The riveting portion 441 has an arc-shaped riveting surface that convexly faces the pressing portion 431 .

[0058] It can be understood that when the riveting drive unit 42 is started so that the pressing portion 431 of the riveting component 43 presses the nut member 92 toward the riveting portion 441 of the riveting table 44, one end of the nut member 92 gradually passes through the riveting hole of the sheet material 91 conveyed by the feeding device 30. At the same time, the riveting portion 441 abuts against the inner wall of the nut member 92, so that the end of the nut member 92 passing through the sheet material 91 gradually tends to be flattened and fixed on the sheet material 91. Thus, the sheet material 91 completes the riveting operation of a riveting hole.

[0059] It is worth mentioning that each of the sheet materials 91 sent to the riveting assembly 40 by the feeding device 30 needs to complete the riveting operation on both riveting holes. Therefore, the material moving assembly 32 of the feeding device 30 can drive the clamping assembly 31 to move as a whole, so that the sheet material 91 clamped by the clamping assembly 31 follows the overall movement of the clamping assembly 31, that is, the two riveting holes of each sheet material 91 can be moved one after another and be located on the path of the riveting component 43 to press the nut part 92, so that the two riveting holes of each sheet material 91 can be pressed with the nut part 92.

[0060] In this way, in the nut riveting equipment that can automatically load, the loading device 20 can automatically supply each of the sheet materials 91 to the feeding device 30, and the feeding device 30 automatically conveys each of the sheet materials 91 supplied by the loading device 20 to the riveting assembly 40, thereby eliminating the step of manually providing the sheet materials 91 to the riveting assembly 40, thereby helping to reduce labor cost investment and improve overall riveting efficiency.

[0061] Specifically, in another example, the riveting assembly 40 includes a connecting frame 41, a riveting drive unit 42, a riveting member 43 and a riveting table 44, wherein the connecting frame 41 is movably connected to the device body 10, and the riveting drive unit 42 is connected to the connecting frame 41. The riveting member 43 is movably connected to the riveting drive unit 42, and the end of the riveting member 43 away from the riveting drive unit 42 forms a pressing portion 431, and the riveting drive unit 42 is configured to drive the riveting member 43 so that the pressing portion 431 is pressed toward the riveting table 44. In addition, the riveting member 43 is also evenly provided with a plurality of magnetic elements 432 on the pressing portion 431 so that a nut member 92 is adsorbed on the pressing portion 431. The riveting platform 44 has two riveting parts 441 spaced a predetermined distance from the pressing part 431 . The two riveting parts 441 are disposed opposite to each other and spaced a predetermined distance apart. Each riveting part 441 has an arcuate riveting surface convex toward the pressing part 431 .

[0062] It can be understood that when the feeding device 30 transports the sheet material 91 to between the pressing portion 431 and the riveting portion 441, the riveting drive unit 42 is started so that the pressing portion 431 of the riveting component 43 first presses a nut member 92 through a riveting hole of the sheet material 91 to complete the riveting operation of one riveting hole of the sheet material 91, and then the connecting frame 41 is moved so that the riveting drive unit 42 and the riveting component 43 follow the movement, so that the pressing portion 431 gradually aligns with the other riveting hole of the sheet material 91 after movement, and re-adsorbs a new nut member 92 on the pressing portion 431 through the magnetic element 432, so that the other riveting hole of the sheet material 91 can complete the riveting operation.

[0063] In order to enable those skilled in the art to understand the present invention, the present invention only includes the riveting assembly 40 comprising a connecting frame 41, a riveting drive unit 42, a riveting member 43 and a riveting table 44, wherein the connecting frame 41 is connected to the device body 10, and the riveting drive unit 42 is connected to the connecting frame 41, the riveting member 43 is movably connected to the riveting drive unit 42, and the end of the riveting member 43 away from the riveting drive unit 42 forms a pressing portion 431, and the riveting drive unit 42 is configured to drive the riveting member 43 to The pressing portion 431 is pressed toward the riveting table 44. The riveting component 43 also evenly arranges multiple magnetic elements 432 on the pressing portion 431 to allow a nut part 92 to be adsorbed on the pressing portion 431. The riveting table 44 has a riveting portion 441 that is spaced a predetermined distance from the pressing portion 431. The riveting portion 441 has an arc-shaped riveting surface that convexly faces the pressing portion 431. That is, the clamped sheet material 91 is moved by the feeding device 30 so that both riveting holes of the sheet material 91 can be riveted to the nut part 92 by the riveting assembly 40.

[0064] In this way, when the automatic nut riveting equipment rivets the nut part 92 onto each of the sheet materials 91, the feeding device 30 can replace manual labor to complete the purpose of moving the sheet materials 91, so that both riveting holes of the sheet materials 91 can be pressed onto the nut parts 92, thereby reducing the risk of manual operation while also improving the riveting efficiency of each of the sheet materials 91.

[0065] Preferably, the riveting component 43 is further provided with a limiting portion 433 at the position of the pressing portion 431, and the limiting portion 433 extends axially outward as a whole by a predetermined length, and the limiting portion 433 has an arc-shaped guide surface with an arc surface convex in the same direction of extension, and then when the nut member 92 is adsorbed on the pressing portion 431 by the magnetic element 432, the limiting portion 433 is arranged to at least partially penetrate the inner hole of the nut member 92, due to the limiting effect of the limiting portion 433, the posture of the nut member 92 adsorbed on the pressing portion 431 is determined, so that the nut member 92 can be accurately pressed toward and penetrated into the sheet material 91 by the riveting component 43 to complete the riveting operation.

[0066] In a modified embodiment, the riveting table 44 is movably connected to the connecting frame 41, and the riveting table 44 is arranged to approach the riveting component 43 in a direction parallel to the moving direction of the riveting component 43, so that when the automatic nut riveting equipment performs a riveting operation on one of the sheet materials 91, the nut part 92 pressed by the riveting component 43 can contact the riveting part 441 more quickly, thereby shortening the time of a single riveting and improving the efficiency of a single riveting.

[0067] Preferably, the riveting drive unit 42 is implemented as, but not limited to, a telescopic cylinder. The magnetic attraction element 432 is implemented as a magnet.

[0068] Furthermore, the riveting assembly 40 further includes a pressing member 45 , wherein the riveting platform 44 forms a groove 4401 penetrating the riveting portion 441 to accommodate the pressing member 45 .

[0069] Preferably, the pressing member 45 includes a push rod 451 and an elastic element 452, wherein the push rod 451 is movably disposed in the channel 4401 and connected to one end of the elastic element 452. The other end of the elastic element 452, which is away from the push rod 451, is connected to the bottom wall forming the channel 4401, and the elastic element 452 is configured to press one end of the push rod 451 so that the push rod 451 is at least partially located outside the channel 4401. When the pressing portion 431 presses toward the riveting platform 44, the push rod 451 is abutted by the limiting portion 433 and gradually accommodated in the channel 4401, pressing the elastic element 452.

[0070] It can be understood that when the riveting component 43 is driven by the riveting drive unit 42 and the pressing portion 431 presses the nut member 92 toward the riveting portion 441 of the riveting table 44, the end of the nut member 92 abutted by the riveting portion 441 is gradually flattened, so that the limiting portion 433 inserted into the nut member 92 gradually abuts against the push rod 451, and then the push rod 451 is acted upon to squeeze the elastic element 452, so that the elastic element 452 is deformed along the axial direction. At this time, the push rod 451 is gradually accommodated in the groove 4401, thereby avoiding the limiting portion 433 directly abutting against the riveting portion 441 and making the part of the nut member 92 passing through the sheet 91 unable to be completely flattened, resulting in the nut member 92 being difficult to be firmly connected to the sheet 91.

[0071] Preferably, the elastic element 452 is implemented as a control spring.

[0072] Preferably, the riveting assembly 40 also includes a detection unit 46. Preferably, the detection unit 46 is movably connected to the connecting frame 41, and the moving direction of the detection unit 46 remains parallel to the moving direction of the riveting component 43, and the detection unit 46 is configured to detect the distance that the riveting drive unit 42 drives the riveting component 43 to move, so that the distance that the riveting component 43 presses the nut member 92 toward the riveted portion 441 is controlled to prevent one end of the nut member 92 from being excessively flattened.

[0073] Furthermore, the automatic nut riveting equipment also includes a nut processing device 50, which is used to replace manual labor to provide the nut part 92 to the riveting assembly 40, and can automatically supply the nut part 92 to the riveting component 43, so that the pressing part 431 of the riveting component 43 can press the nut part 92 toward the riveting hole of the sheet material 91.

[0074] Specifically, the nut processing device 50 includes a nut supply component 51 and a nut release component 52, wherein the nut supply component 51 has a nut supply space 5101 for storing the provided nut part 92, and the nut supply component 51 is arranged to extend toward the nut release component 52 to form a transmission pipe 511 to transmit the nut part 92 to the nut release component 52.

[0075] The transmission pipe 511 defines a high end and a low end, wherein the high end is connected to the nut supply space 5101, and the low end corresponds to the nut release member 52. Thus, the nut member 92 transmitted through the nut supply space 5101 moves from the position of the high end to the position of the low end under the action of gravity to enter the nut release member 52.

[0076] The nut releasing member 52 includes a releasing body 521, a pair of releasing arms 522, and the same number of elastic members 523 as the releasing arms 522. The releasing body 521 is connected to the device body 10 and has a releasing channel 52101. The releasing channel 52101 is connected to the lower end of the transmission pipe 511. The two releasing arms 522 are rotatably connected to the releasing body 521 and are arranged opposite to each other and spaced apart to form a groove 52201. The groove 52201 is maintained on the moving path of the pressing portion 431 of the rivet pressing member 43, and the groove 52201 is arranged to extend toward the outlet of the releasing channel 52101 to communicate with the releasing channel 52101. One end of each elastic member 523 is arranged to abut against one of the release arms 522 , and the other end of each elastic member 523 is arranged to abut against the release body 521 , so that when the release arm 522 rotates, the elastic member 523 is arranged to generate elastic force along the axial direction.

[0077] It can be understood that the nut part 92 transmitted through the nut feeding member 51 can enter the release channel 52101 of the release body 521 under the action of gravity after entering the transmission pipe 511, and finally move to the release arm 522 to form the groove 52201. Then, when the riveting member 43 is driven to move, the pressing part 431 of the riveting member 43 presses the nut part 92 located in the groove 52201 toward the sheet material 91, and the two release arms 522 are pushed by the pressing part 431 and rotated by a predetermined angle along the axial direction of the elastic member 523 abutting against themselves. At this time, each elastic member 523 generates elastic force in the axial direction, so that when the riveting member 43 no longer pushes the release arm 522, each release arm 522 can be driven by the elastic force to return to its original position and form the groove 52201 again to collect the nut part 92.

[0078] It is worth mentioning that when the rivet pressing member 43 presses one of the nut members 92 toward the sheet material 91, the rivet pressing member 43 is partially located at the exit of the release channel 52101, thereby blocking the movement path of the other nut members 92 located in the release channel 52101. In other words, when one of the nut members 92 is being rivet pressed, the other nut members 92 located in the release channel 52101 cannot move to the position where the groove 52201 is formed.

[0079] Furthermore, the nut processing device 50 also includes a nut operating member 53, wherein the release body 521 also has a pushing channel 52102 connected to the release channel 52101, and the pushing channel 52102 is arranged to be connected to the groove 52201 for the nut operating member 53 to push the nut part 92 into the groove 52201.

[0080] Preferably, the nut operating member 53 includes a push rod 531 and an auxiliary driving member 532, wherein the push rod 531 is movably disposed in the pushing channel 52102. The auxiliary driving member 532 is connected to the release body 521 and can be driven and movably connected to the push rod 531 to drive the push rod 531 to move toward the groove 52201. When the nut member 92 enters the pushing channel 52102 from the release channel 52101, the auxiliary driving member 532 is activated to cause the push rod 531 to gradually abut against one of the nut members 92 and tend to push the nut member 92 toward the groove 52201.

[0081] Preferably, the nut supply member 51 is implemented as a vibration plate. Each of the elastic members 523 is implemented as a torsion spring. The booster drive member 532 is implemented including but not limited to a hydraulic cylinder or a telescopic cylinder.

[0082] Furthermore, the nut riveting equipment that can automatically load also includes a detection device 60, which is used to detect the front and back orientations of the sheet material 91 provided by the loading device 20 to the feeding device 30, so that the riveting assembly 40 can perform riveting operations on the sheet material 91 whose front and back orientations meet the riveting standards, so as to prevent the sheet material 91 whose front and back orientations do not meet the riveting standards from being riveted, thereby improving the riveting success rate.

[0083] It should be noted that an identification code is set on the front of the sheet material 91, and the detection device 60 can determine the front and back orientation of each sheet material 91 when it is transported by the feeding device 30 by whether the identification code is detected, and the feeding device 30 can convey the detected sheet material 91 to the riveting assembly 40.

[0084] Specifically in one example, Figure 1 、 Figure 3 、 Figure 3 、 Figure 4 and Figure 5 As shown, the feeding device 30 further includes a transfer component 33 , and the transfer component 33 is used to transport the sheet material 91 adsorbed by the loading component 21 of the loading device 20 to the detection device 60 .

[0085] By way of example, the transfer member 33 includes a transfer driver 331, a transfer frame 332, and a driving block 333. The transfer driver 331 is mounted on the transfer frame 332 and is drivable and connected to the driving block 333. The transfer frame 332 is connected to the apparatus body 10 and extends toward the detection device 60 in a direction parallel to the movement direction of the driving block 333 to form a guide rail. The driving block 333 is movably connected to the guide rail of the transfer frame 332, and the feed drive 2151 is connected to the driving block 333. Thus, when the transfer driver 331 is activated, the driving block 333 is driven to move toward the detection device 60, allowing the sheet material 91 adsorbed by the suction member 214 in the loading assembly 21 to be detected by the detection device 60.

[0086] As an example, the transfer drive 331 is implemented as an electric cylinder.

[0087] Specifically, if Figure 1 、 Figure 3 and Figure 5 As shown, the detection device 60 includes a loading platform 61, a support frame 62, and a detection member 63. The loading platform 61 is connected to the support frame 62 and is positioned to overlap with the projection of the suction member 214 on the same surface. The loading platform 61 also forms a placement groove 6101 for placing the sheet material 91. The support frame 62 is connected to the device body 10. The detection member 63 is arranged to maintain a predetermined vertical distance from the loading platform 61 and corresponds to the placement groove 6101 to detect the identification code on the sheet material 91.

[0088] It can be understood that when the suction member 214 of the loading component 21 absorbs one of the sheet materials 91, the transfer drive member 331 is started to move the driving block 333 toward the detection device 60, so that the supply and transfer member 215 follows the driving block 333 to move, so that the suction member 214 carries the sheet material 91 and is located in the same vertical direction as the loading platform 61. At this time, the sheet material 91 is transported to the placement groove 6101 through the supply and transfer member 215, and the suction effect of the suction member 214 on the sheet material 91 is stopped, so that the sheet material 91 is located in the placement groove 6101. As a result, the detection member 63 detects whether there is an identification code on the side of the sheet material 91 facing the detection member 63, and then determines whether the sheet material 91 is placed with the front side facing up or with the back side facing up.

[0089] In this way, the feeding device 30 can automatically convey the sheet material 91 placed with the reverse side facing upward to the riveting assembly 40, thereby reducing manual intervention.

[0090] In a preferred embodiment, Figure 4 As shown, the loading platform 61 is provided on the bottom wall of the placement slot 6101 to form an observation window 6102 in communication with the placement slot 6101. The support frame 62 is formed with an opening 6201 at a position near the observation window 6102 that is at least the same size as the observation window 6102. The opening 6201 is connected to the outside world and is opposite to the observation window 6102. The detection member 63 is connected to the support frame 62 and is maintained below the loading platform 61 and facing the opening 6201 to detect the sheet material 91 in the placement slot 6101 from below the loading platform 61.

[0091] In a modified embodiment, the detection component 63 is connected to the support frame 62 , and the detection component 63 is maintained above the loading platform 61 to detect the sheet material 91 located in the placement groove 6101 from above the loading platform 61 .

[0092] Preferably, the inner wall forming the placement groove 6101 is configured to be at least partially missing, so as to form a notch 6103 at the side end of the loading platform 61 that is connected to the placement groove 6101, allowing the feeding device 30 to transport the sheet material 91. It is understandable that the projections of the sheet material 91 placed in the placement groove 6101 and the loading platform 61 on the same surface at least partially do not overlap, that is, the portion of the sheet material 91 located in the notch 6103, and the feeding device 30 can act on the portion of the sheet material 91 located in the notch 6103 to transport the sheet material 91.

[0093] Preferably, the loading platform 61 is provided with two positioning portions 611 on the bottom wall of the placement groove 6101. The two positioning portions 611 are arranged opposite to each other and spaced apart, and each positioning portion 611 is configured to pass through a riveting hole of the sheet material 91, so that the sheet material 91 can be stably placed in the placement groove 6101. It is worth mentioning that the outer diameter of the positioning portion 611 can be set according to the riveting standard, that is, the sheet material 91 passed through by the positioning portion 611 and whose inner diameter of the riveting hole matches the outer diameter of the positioning portion 611 meets the riveting condition, thereby screening the sheet materials 91 that can be riveted.

[0094] Preferably, the detection component 63 is implemented as a CCD photo recognition camera.

[0095] Specifically in another example, Figure 4As shown, the material moving assembly 32 includes a pushing member 321, a vertical moving drive unit 322 and a horizontal moving drive unit 323, wherein the pushing member 321 includes at least one limiting guide rail 3211 and a pushing drive member 3212. The limiting guide rail 3211 is fixedly connected to the support frame 62 of the detection device 60, and the loading platform 61 is movably connected to the limiting guide rail 3211, and the extending direction of the limiting guide rail 3211 is consistent with the moving direction of the loading platform 61. The pushing drive member 3212 is installed on the support frame 62, and the loading platform 61 is movably connected to the output end of the pushing drive member 3212. The vertical moving drive unit 322 can be driven and driven to be connected to the clamping drive member 312, and the vertical moving drive unit 322 is installed on the horizontal moving drive unit 323. The transverse driving unit 323 is disposed on the device body 10 , and the transverse driving unit 323 is configured to drive the vertical driving unit 322 toward the riveting assembly 40 along a horizontal direction.

[0096] It can be understood that when the vertical movement drive unit 322 drives the clamping assembly 31 as a whole to be located at a predetermined position where the sheet material 91 can be maintained relative to the clamp 3101, the pushing drive member 3212 is started to drive the loading platform 61 to move along the extension direction of the limiting guide rail 3211, so that the sheet material 91 placed on the placement groove 6101 also gradually extends into the clamp 3101 along the extension direction of the limiting guide rail 3211. At this time, the clamping assembly 31 can clamp the sheet material 91 by adjusting the clamp 3101, and then continue to start the vertical movement drive unit 322 to make the clamping assembly 31 as a whole and the clamped sheet material 91 be taken away from the loading platform 61, thereby, the material moving assembly 32 can drive the clamping assembly 31 as a whole and the clamped sheet material 91 to move toward the riveting assembly 40, so that the sheet material 91 can be riveted.

[0097] Furthermore, the automatic nut riveting equipment also includes a recovery unit 70 for collecting the sheet material 91 in the placement groove 6101 whose identification code cannot be detected by the detection component 63, that is, the sheet material 91 that cannot be directly riveted by the riveting assembly 40.

[0098] Preferably, the recovery unit 70 includes a recoverer 71 and a guide frame 72, wherein the recoverer 71 is connected to the equipment body 10 and has a recovery chamber 7101. The guide frame 72 is arranged above the recoverer 71 and extends toward the recoverer 71, and the guide frame 72 is arranged to form an annular material introduction channel 7201, the upper end of the material introduction channel 7201 is arranged to allow the sheet material 91 to enter, and the lower end of the material introduction channel 7201 is connected to the recovery chamber 7101.

[0099] It is understandable that if Figure 1 As shown, the feeding device 30 can take out the sheet material 91 placed with the front side facing up from the placement groove 6101, and carry the sheet material 91 to the high end of the guide channel 7201 formed by the guide frame 72, so that the sheet material 91 entering from the high end of the guide channel 7201 can enter the recovery chamber 7101 of the recoverer 71 from the guide channel 7201 from top to bottom under the action of gravity.

[0100] Furthermore, the automatic nut riveting equipment further includes a finished product conveying unit 80, which is used to convey the sheet material 91 that has completed the riveting operation. Preferably, the finished product conveying unit 80 includes a conveying member 81 and a slide 82, wherein the conveying member 81 is connected to the equipment body 10, and the conveying member 81 is arranged in the direction of the slide 82 to form a conveying channel 8101 to convey the sheet material 91. The slide 82 is connected to the outlet of the conveying channel 8101, and the slide 82 forms an inclined slide 821, the high end of the inclined slide 821 is arranged to receive the outlet of the conveying channel 8101, and the extension direction of the low end of the inclined slide 821 is arranged to be consistent with the direction in which the conveying member 81 conveys the sheet material 91.

[0101] It is understandable that if Figure 1 and Figure 3 As shown, after the sheet material 91 completes the riveting operation, the feeding device 30 can transport the sheet material 91 to the conveying channel 8101 of the conveying member 81, so that the conveying member 81 conveys the sheet material 91 to the slide 82, thereby, the sheet material 91 that completes the riveting operation can be collected at the outlet of the inclined slide 821.

[0102] Preferably, the conveying member 81 is implemented as a conveyor belt transmission device.

[0103] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are provided for illustrative purposes only and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functional and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles described.

Claims

1. Nut riveting equipment with automatic loading, characterized by: The nut riveting equipment capable of automatic loading includes: Equipment body; A feeding device, the feeding device includes a feeding assembly, the feeding assembly includes a feeding arm, a feeding drive, a fixing frame and at least one suction member, wherein the feeding arm and the suction member are arranged opposite to and spaced apart in the same vertical direction, and the feeding arm is movably connected to the feeding drive, and the top of the feeding arm is configured to stack a plurality of sheet materials, the feeding drive is mounted on the fixing frame, and the fixing frame is connected to the equipment body, the suction member is maintained on the moving path of the feeding arm, and further when the feeding arm moves toward the suction member, each of the suction members is configured to form a negative pressure at the bottom to absorb the sheet materials; a feeding device, the feeding device being arranged on the device body in a manner capable of conveying the sheet material adsorbed by the material adsorbing member; A riveting assembly is arranged on the equipment body in a manner that can rivet a nut member onto the sheet material conveyed by the feeding device.

2. The nut riveting equipment capable of automatic loading according to claim 1, characterized in that: The loading assembly also includes a supply and transfer component, which includes a supply and transfer drive and a belt transfer arm, wherein the belt transfer arm is movably connected to the supply and transfer drive, and the suction member is evenly arranged at the end of the belt transfer arm away from the supply and transfer drive.

3. The nut riveting equipment capable of automatic loading according to claim 2, characterized in that: The loading device also includes a material limiting component, which is connected to the circumference of the feeding arm, and the top of the material limiting component extends vertically to form a material limiting space with the feeding arm, and the material limiting space is used to accommodate the plate material carried by the feeding arm.

4. The nut riveting equipment capable of automatic loading according to claim 2, characterized in that: The loading device also includes a material limiting component, which includes a loading platform and a plurality of material limiting parts, wherein the loading platform is connected to the equipment body, the material limiting parts are evenly connected to the top of the loading platform, and the other end of the material limiting part extends vertically away from the loading platform to form at least one material limiting space with the loading platform, each of the material limiting spaces is configured to accommodate a predetermined number of the sheet materials, and the feeding arm is configured to be movable in the material limiting space.

5. The nut riveting equipment capable of automatic loading according to claim 3 or 4, characterized in that: The feeding device includes a material clamping assembly and a material moving assembly, the material clamping assembly includes a pair of clamping arms and a material clamping driving component, wherein the two clamping arms are connected to the output end of the material clamping driving component relative to and spaced apart to form a clamping gap, the material clamping driving component is arranged on the material moving assembly, and the material clamping driving component is arranged to drive the two clamping arms to move relative to each other to adjust the size of the clamping gap to clamp the sheet material, and the material moving assembly is arranged on the equipment body in a manner that it can transport the clamped sheet material to the riveting assembly.

6. The nut riveting equipment capable of automatic loading according to claim 5, characterized in that: The material moving assembly includes a pushing member, a vertical drive unit and a transverse drive unit, wherein the pushing member is installed at the output end of the vertical drive unit, and the clamping drive member is movably connected to the pushing member, the vertical drive unit is installed at the output end of the transverse drive unit, and the vertical drive unit is configured to drive the pushing member in the vertical direction so that the sheet material is opposite to the clamp, and the transverse drive unit is arranged on the equipment body, and the transverse drive unit is configured to drive the vertical drive unit toward the riveting assembly in the horizontal direction.

7. The nut riveting equipment capable of automatic loading according to claim 1, characterized in that: The riveting assembly includes a connecting frame, a riveting drive unit, a riveting component and a riveting platform, wherein the connecting frame is connected to the equipment body, and the riveting drive unit is connected to the connecting frame, the riveting component is movably connected to the riveting drive unit, and the end of the riveting component away from the riveting drive unit forms a pressing portion, and the riveting drive unit is configured to drive the riveting component to press the pressing portion toward the riveting platform, the riveting component also evenly arranges a plurality of magnetic elements on the pressing portion so that the nut member is adsorbed on the pressing portion, the riveting platform has a riveting portion spaced a predetermined distance from the pressing portion, and the riveting portion has an arc-shaped riveting surface that convexly faces the pressing portion.

8. The nut riveting equipment capable of automatic loading according to claim 1, characterized in that: The riveting assembly includes a connecting frame, a riveting drive unit, a riveting component and a riveting platform, wherein the connecting frame is movably connected to the equipment body, and the riveting drive unit is connected to the connecting frame, the riveting component is movably connected to the riveting drive unit, and the end of the riveting component away from the riveting drive unit forms a pressing portion, and the riveting drive unit is configured to drive the riveting component to press the pressing portion toward the riveting platform, and the riveting component also evenly arranges a plurality of magnetic elements on the pressing portion so that the nut member is adsorbed on the pressing portion, and the riveting platform has two riveting portions that are spaced a predetermined distance from the pressing portion, the two riveting portions are arranged opposite to each other and at a predetermined distance, and each of the riveting portions has an arc-shaped riveting surface that convexly faces the pressing portion.

9. The nut riveting equipment capable of automatic loading according to claim 7, characterized in that: The riveting component is further provided with a limiting portion at the position of the pressing portion, and the limiting portion extends outward in an integral manner along the axial direction by a predetermined length, and the limiting portion has an arc-shaped guide surface that is convex in the same direction as the extension direction, so that when the nut member is adsorbed on the pressing portion by the magnetic element, the limiting portion is arranged to at least partially penetrate the inner hole of the nut member.

10. The nut riveting equipment capable of automatic loading according to claim 9, characterized in that: The riveting assembly also includes a pressing member, and the riveting platform forms a groove running through the riveting part, the pressing member includes a push rod and an elastic element, wherein the push rod is movably arranged in the groove, and the push rod is connected to one end of the elastic element, and the other end of the elastic element away from the push rod is connected to the bottom wall forming the groove, and the elastic element is configured to press one end of the push rod so that the push rod is at least partially located outside the groove, and then when the pressing part is pressed toward the riveting platform, the push rod is abutted by the limiting part and gradually accommodated in the groove, and presses the elastic element.

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