PIN pressing device

Abstract

The utility model provides a PIN pressing device, and the device comprises a bearing platform which is located at a pressing station, the bearing platform is used for loading a workpiece, and after loading, a welding surface is located at one side of a pinhole in a first direction; the pressing head is arranged above the pressing station in a lifting manner; the first positioning assembly comprises two first positioning pieces arranged at the bottom of the pressing head, and a positioning seam extending in the first direction is formed between the two first positioning pieces; and the pressing piece is arranged at the bottom of the pressing head, the lower end of the pressing piece is higher than the lower end of the first positioning piece, and the pressing piece can press the main needle part downwards when descending. According to the PIN pressing device provided by the embodiment of the invention, the direction of the PIN can be corrected when the PIN is pressed down.

Description

Technical Field

[0001] The present application belongs to the field of automatic assembly technology, and more specifically, relates to a PIN needle pressing device. Background Art

[0002] During the production process of some products, it is necessary to press down the PIN needles that have been pre-inserted into the holes of the workpiece by a robotic arm. However, the initial direction of the pre-inserted PIN needles may be incorrect and not aligned with the welding surface on the workpiece, which will cause the PIN needles to be skewed after being pressed down, affecting subsequent welding operations. Utility Model Content

[0003] The embodiment of the present application provides a PIN needle pressing device, which can correct the direction of the PIN needle when pressing down.

[0004] The technical solution adopted in the embodiment of the present application is: to provide a PIN needle clamping device, the workpiece includes a pinhole and a welding surface located on one side of the pinhole, the PIN needle includes a main pin portion and a welding portion extending from the main pin portion, the main pin portion is pre-inserted on the pinhole, and the PIN needle clamping device includes:

[0005] A carrier platform, located at the pressing station, the carrier platform is used to load the workpiece, and after the workpiece is loaded on the carrier platform, the welding surface and the pinhole are arranged along a first direction;

[0006] The pressing head is arranged above the pressing station in a manner that it can be raised and lowered;

[0007] A first positioning assembly includes two first positioning members disposed at the bottom of the pressure head, and a positioning gap extending along the first direction is formed between the two first positioning members; and

[0008] A pressing member is arranged at the bottom of the pressure head, the lower end of the pressing member is higher than the lower end of the first positioning member, and the pressing member can press down the main needle part when descending.

[0009] Further, the pressing head includes a first pressing block, a second pressing block and a spring rod assembly, the first pressing block is movably arranged above the pressing station, one end of the spring rod assembly is connected to the first pressing block, and the other end is connected to the second pressing block, and the second pressing block can compress the spring rod assembly to be close to the first pressing block;

[0010] The second pressing block is provided with a first through hole and a second through hole, one end of the first positioning member is connected to the first pressing block, and the other end thereof passes through the first through hole and extends to the bottom of the second pressing block, and one end of the pressing member is connected to the first pressing block, and the other end thereof passes through the second through hole and extends to the bottom of the second pressing block;

[0011] Before starting to press downward, the height difference between the second pressing block and the workpiece is smaller than the height difference between the first positioning member and the welding portion.

[0012] Further, the spring rod assembly comprises:

[0013] A connecting rod, one end of which is fixed to the first pressing block, and the other end of which is provided with a sliding groove extending along the axial direction of the connecting rod and passing through the second pressing block;

[0014] a first limiting rod, which is laterally inserted into the second pressing block and passes through the sliding groove, and the first limiting rod slides along the sliding groove when the second pressing block approaches the first pressing block;

[0015] The elastic member has one end abutting against the first pressing block, and the other end abutting against the second pressing block.

[0016] Furthermore, the spring rod assembly also includes a second limiting rod, and a first slot is provided at one end of the connecting rod away from the second pressure block, the cross-sectional shape of the first slot is adapted to the cross-sectional shape of the second limiting rod, and the second limiting rod is laterally inserted into the first pressure block and penetrates the first slot.

[0017] Furthermore, the pressure head also includes a third limiting rod, the first pressure block is provided with a third through hole for the upper end of the first positioning member to be inserted, the upper end of the first positioning member is provided with a second slot, the cross-sectional shape of the second slot is adapted to the cross-sectional shape of the third limiting rod, and the third limiting rod is inserted into the first pressure block and passed through the second slot.

[0018] Furthermore, the PIN needle pressing device further includes a first driver, and the pressing head further includes a connecting block, one end of the connecting block is connected to the first driver, and the other end is connected to the upper end surface of the first pressing block, and the first driver is used to drive the connecting block to move up and down;

[0019] The first pressing block is provided with a fourth through hole which passes vertically therethrough, and the upper end surface of the first pressing block is also provided with a groove which is connected with the fourth through hole, and the clamping member includes a pressure strip portion and a limiting portion arranged at the upper end of the pressure strip portion, the pressure strip portion passes through the fourth through hole and the second through hole and extends to the bottom of the second pressing block, and the limiting portion is embedded in the groove and abuts against the connecting block.

[0020] Furthermore, the PIN needle pressing device further comprises:

[0021] A frame, arranged at the pressing station;

[0022] The slide rail assembly comprises a slide rail and a sliding block which slides with the slide rail, wherein the slide rail is vertically arranged on the frame, and the connecting block is arranged on the sliding block.

[0023] Furthermore, the first positioning member includes a guiding surface, the guiding surface is located at one side of the lower end of the positioning seam, the positioning seam can be used for the welding part to be matched and inserted, and the distance between the two guiding surfaces gradually decreases from bottom to top.

[0024] Further, the carrying platform is transported to the pressing station by a transport mechanism;

[0025] The PIN needle pressing device also includes:

[0026] A second positioning component includes a second positioning member and a positioning pin, wherein the second positioning member is movably disposed at the pressing station, the second positioning member is provided with a pin hole, the positioning pin is disposed on the bearing platform, and when the bearing platform is located at the pressing station, the positioning pin corresponds to the position of the pin hole;

[0027] The second driver is used to drive the second positioning member to move up and down so that the positioning pin is inserted into the pin hole, or the positioning pin is disengaged from the pin hole.

[0028] Furthermore, the upper end of the positioning pin is tapered.

[0029] The beneficial effect of the PIN needle clamping device provided in the embodiment of the present application is that: the PIN needle clamping device in the embodiment of the present application is provided with a bearing platform, a pressure head, a first positioning assembly and a clamping member. The bearing platform can load the workpiece and after loading, the welding surface of the workpiece and the pinhole are arranged along the first direction, that is, the workpiece can be placed in a specified direction. The two first positioning members of the first positioning assembly are arranged at the bottom of the pressure head, and a positioning seam is formed between the two first positioning members. When the pressure head descends, since the lower end of the clamping member is higher than the lower end of the first positioning member, the first positioning member first contacts the welding part of the workpiece and clamps the welding part into the positioning seam. Since the positioning seam extends along the first direction, the direction of the welding part of the workpiece is also toward the first direction. At this time, the welding part is aligned with the welding surface of the workpiece, and the direction correction is accurate. After the direction calibration, the pressure head continues to descend, and the clamping member descends and presses down the main needle part, pressing the main needle part into the pinhole of the workpiece, thereby realizing the correction and clamping of the direction of the PIN needle on the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0031] Figure 1 A schematic diagram of a PIN needle pre-inserted on a workpiece provided in an embodiment of the present application;

[0032] Figure 2 A schematic diagram of the three-dimensional structure of a PIN needle pressing device provided in an embodiment of the present application;

[0033] Figure 3 A schematic structural diagram of the assembly of the pressure head, the first positioning assembly and the pressing member provided in the embodiment of the present application;

[0034] Figure 4 A front view of the assembled pressing head, the first positioning assembly and the pressing member provided in an embodiment of the present application;

[0035] Figure 5 For along Figure 4 A partial cross-sectional view at AA in the middle;

[0036] Figure 6 For along Figure 4 A partial cross-sectional view of the middle BB;

[0037] Figure 7 An exploded view of the pressing head, the first positioning assembly and the pressing member provided in the embodiment of the present application;

[0038] Figure 8 A front view of a PIN needle pressing device provided in an embodiment of the present application;

[0039] Fig. 9 For along Figure 8 Cross-sectional view at CC.

[0040] Among them, the reference numerals in the figure are:

[0041] 11. workpiece; 111. pinhole; 112. welding surface; 12. PIN pin; 121. main pin part; 122. welding part;

[0042] 20. Rack;

[0043] 30. Carrying platform; 31. Accommodating tank;

[0044] 40. Press head; 41. First pressing block; 411. Third through hole; 412. Fourth through hole; 413. Groove; 42. Second pressing block; 421. First through hole; 422. Second through hole; 43. Spring rod assembly; 431. Connecting rod; 4311. Slide groove; 4312. First clamping groove; 432. First limiting rod; 433. Elastic member; 434. Second limiting rod; 44. Third limiting rod; 45. Connecting block;

[0045] 50, first positioning assembly; 51, first positioning member; 511, guide surface; 512, second slot; 52, positioning seam;

[0046] 60. Pressing member; 61. Pressing strip portion; 62. Limiting portion;

[0047] 71. first driver; 72. second driver;

[0048] 80, second positioning assembly; 81, second positioning member; 811, pin hole; 82, positioning pin;

[0049] 90. Slide rail assembly; 91. Slide rail; 92. Slider. DETAILED DESCRIPTION

[0050] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0051] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0052] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application 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, and therefore should not be understood as a limitation on the present application.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0054] See also Figure 2 and Figure 3 The PIN pin pressing device provided in the embodiment of the present application is now described. The PIN pin pressing device provided in the embodiment of the present application is used to press the PIN pin 12 pre-inserted on the workpiece 11 onto the workpiece 11 .

[0055] Reference Figure 1, the workpiece 11 includes a pinhole 111 and a welding surface 112 located on one side of the pinhole 111. The PIN needle 12 includes a main needle portion 121 and a welding portion 122 extending from the main needle portion 121, and the main needle portion 121 is pre-inserted into the pinhole 111. In production, the PIN needle 12 needs to be inserted and fixed on the workpiece 11, and the welding portion 122 needs to be aligned with the welding surface 112 of the workpiece 11, so that in the subsequent process, the welding portion 122 and the welding surface 112 can be connected by guide wire welding. Specifically, the main needle portion 121 and the welding portion 122 are connected in a "cross" shape or an inverted "L" shape. The vertical part of the "cross" is the main needle portion 121, and the horizontal part is the welding portion 122. The vertical part of the "L" shape is the main needle portion 121, and the horizontal part is the welding portion 122.

[0056] However, in the step of pre-inserting the PIN needle 12 into the pinhole 111, it is impossible to ensure that the welding portion 122 is aligned with the welding surface 112. If the pressing portion is not aligned with the welding surface 112 after pressing, it will affect the subsequent welding. Therefore, before pressing the PIN needle 12, it is necessary to adjust the direction of the PIN needle 12 so that the welding portion 122 is aligned with the welding surface 112 of the workpiece 11, and then press the PIN needle 12.

[0057] Reference Figure 2 In order to adjust the direction of the PIN needle 12 and press the PIN needle 12 , the PIN needle pressing device of the embodiment of the present application includes a carrier 30 , a pressing head 40 , a first positioning assembly 50 and a pressing member 60 .

[0058] Reference Figure 2 , the carrier platform 30 is located at the clamping station, and the carrier platform 30 is used to load the workpiece 11. After the workpiece 11 is loaded on the carrier platform 30, the welding surface 112 and the pinhole 111 are arranged along the first direction. The clamping station is a station for clamping the workpiece 11 and the PIN needle 12. The carrier platform 30 is located at the clamping station, and can be fixedly set at the clamping station, or moved to the clamping station before clamping is required. The carrier platform 30 is used to load the workpiece 11, and structures such as grooves can be set thereon to position the workpiece 11, so that the workpiece 11 will not shift on the carrier platform 30. In addition, when the workpiece 11 is installed on the workpiece 11 and is in the clamping station, the welding surface 112 is located on one side of the pinhole 111 along the first direction. That is, the position of the workpiece 11 is limited by the carrier platform 30.

[0059] Reference Figure 2 The pressing head 40 is arranged above the pressing station in a manner that it can be raised and lowered. A frame 20 can be arranged at the pressing station, and the pressing head 40 can be installed on the frame 20 and can be raised and lowered on the frame 20, so that the PIN needle 12 can be pressed down during the descending process.

[0060] Reference Figure 3 and Figure 4, the first positioning assembly 50 includes two first positioning members 51 arranged at the bottom of the pressure head 40, and a positioning slit 52 extending along the first direction is formed between the two first positioning members 51. The two first positioning members 51 are arranged at the bottom of the pressure head 40, and there is a positioning slit 52 between the two first positioning members 51. When the pressure head 40 descends, the first positioning assembly 50 descends together, and the lower end of the first positioning member first contacts the welding portion 122 of the PIN needle 12, and the welding portion 122 is stuck into the positioning slit 52. Since the positioning slit 52 is extended along the first direction, the welding portion 122 is also restricted along the first direction after entering the positioning slit 52. When the workpiece 11 is on the carrier 30, the welding surface 112 of the workpiece 11 is located on the side of the pinhole 111 located in the first direction, and the main needle portion 121 of the PIN needle 12 is inserted into the pinhole 111. Therefore, at this time, the welding portion 122 faces the welding surface 112, and the direction of the PIN needle 12 is adjusted correctly.

[0061] The pressing member 60 is disposed at the bottom of the pressing head 40, and the lower end of the pressing member 60 is higher than the lower end of the first positioning member 51. The pressing member 60 can press down the main needle portion 121 when descending. Since the lower end of the pressing member 60 is higher than the lower end of the first positioning member 51, during the descending process of the pressing head 40, the first positioning member 51 first contacts the PIN needle 12 and adjusts the direction of the PIN needle 12, and then the pressing member 60 contacts the PIN needle 12, thereby pressing down the PIN needle 12 whose direction has been adjusted, and fixing it in the pinhole 111 of the workpiece 11.

[0062] It is understandable that when there are multiple PIN pins 12 on a workpiece 11 , multiple first positioning components 50 may be provided correspondingly to the PIN pins 12 . Alternatively, multiple first positioning members 51 arranged at intervals from each other may be provided, and every two adjacent first positioning members 51 may serve as a group of first positioning components 50 .

[0063] Based on the above structure, in the PIN needle clamping device of the embodiment of the present application, the first positioning assembly 50 can calibrate the direction of the welding portion 122 of the PIN needle 12 during the descent process, so that it is aligned with the welding surface 112 on the workpiece 11. After calibration, the pressure head 40 continues to descend under the drive of the first driving member, and the clamping member 60 descends to press the main needle portion 121, and the main needle portion 121 is pressed and inserted into the pinhole 111 of the workpiece 11, thereby realizing the correction and clamping of the direction of the PIN needle 12 on the workpiece 11.

[0064] Reference Figures 3 to 7The pressing head 40 includes a first pressing block 41, a second pressing block 42 and a spring rod assembly 43. The first pressing block 41 can be raised and lowered above the pressing station. One end of the spring rod assembly 43 is connected to the first pressing block 41, and the other end is connected to the second pressing block 42. The second pressing block 42 can compress the spring rod assembly 43 to approach the first pressing block 41. The first pressing block 41 and the second pressing block 42 are connected by the spring rod assembly 43. During the pressing process, the second pressing block 42 will press the workpiece 11 after contacting the workpiece 11, and play a fixing role on the workpiece 11 to prevent the position of the workpiece 11 from shifting during the process of adjusting the direction of the welding part 122 and pressing the PIN needle 12, resulting in a direction adjustment error. When the second pressing block 42 presses the workpiece 11, the first pressing block 41 will continue to descend, compressing the spring rod assembly 43. After the first pressing block 41 descends, it will continue to drive the first positioning member 51 and the pressing member 60 to continue to descend.

[0065] Reference Figure 5 , the second pressing block 42 is provided with a first through hole 421 and a second through hole 422, one end of the first positioning member 51 is connected to the first pressing block 41, and the other end passes through the first through hole 421 and extends to the bottom of the second pressing block 42, and one end of the pressing member 60 is connected to the first pressing block 41, and the other end passes through the second through hole 422 and extends to the bottom of the second pressing block 42. That is, the upper ends of the first positioning member 51 and the pressing member 60 are connected and fixed to the first pressing block 41, and pass through the second pressing block 42. When the second pressing block 42 contacts and presses the workpiece 11, the second pressing block 42 is restricted by the workpiece 11 and cannot continue to descend, but the first pressing block 41 can continue to descend by compressing the spring rod assembly 43, thereby driving the first positioning member 51 and the pressing member 60 to descend relative to the second pressing block 42. When the first positioning member 51 and the pressing member 60 descend, they slide in the first through hole 421 and the second through hole 422 respectively, and then contact the welding part 122 and the main needle part 121 of the PIN needle 12, adjust the direction of the welding part 122 and press the PIN needle 12.

[0066] Before the pressing begins, the height difference between the second pressing block 42 and the workpiece 11 is smaller than the height difference between the first positioning member 51 and the welding portion 122. That is, when pressing, the second pressing block 42 first contacts the workpiece 11 to press the workpiece 11, and the first positioning member 51 then contacts the welding portion 122 of the PIN pin 12 to adjust the direction of the welding portion 122.

[0067] Reference Figure 1The workpiece 11 specifically includes two parts, one high and one low. The high part is the main body of the workpiece 11, and the low part is the plug-in part. The pinhole 111 and the welding surface 112 are both arranged at the plug-in part. The main body of the workpiece 11 and the plug-in part are loaded on the carrier 30 in an L shape. Therefore, when the second pressing block 42 descends, the second pressing block 42 will first contact the upper end of the main body of the workpiece 11 and press the main body of the workpiece 11, while the first positioning member 51 and the pressing member 60 are aligned with the plug-in part. Due to the height difference between the main body of the workpiece 11 and the plug-in part, the first positioning member 51 and the pressing member 60 do not contact the PIN needle 12 on the plug-in part at this time. When the first pressing block 41 continues to be pressed down, the first positioning member 51 and the pressing member 60 further descend, contact the PIN needle 12, adjust the PIN direction correctly and press the PIN needle 12.

[0068] Reference Figure 3 and Figure 7 The spring rod assembly 43 includes a connecting rod 431 , a first limiting rod 432 and an elastic member 433 .

[0069] Reference Figure 6 , one end of the connecting rod 431 is fixed to the first pressing block 41, and the circumference of the other end is provided with a slide groove 4311 extending along the axial direction of the connecting rod 431 and penetrated through the second pressing block 42. The upper end of the connecting rod 431 is connected and fixed to the first pressing block 41, and the lower end is inserted into the second pressing block 42. It can be understood that the second pressing block 42 is provided with a vertical hole for the lower end of the connecting rod 431 to be inserted. The lower end of the connecting rod 431 is provided with a slide groove 4311 extending along the axis for the first limiting rod 432 to slide.

[0070] Reference Figure 6 and Figure 7 The first limiting rod 432 is inserted into the second pressing block 42 horizontally and is provided in the slide groove 4311. When the second pressing block 42 approaches the first pressing block 41, the first limiting rod 432 slides along the slide groove 4311. The first limiting rod 432 is inserted into the second pressing block 42 horizontally and is provided in the slide groove 4311. At this time, the second pressing block 42 is connected to the slide groove 4311. When the first limiting rod 432 slides up and down along the slide groove 4311, the second pressing block 42 also slides along the connecting rod 431. The groove wall at the lower end of the slide groove 4311 can also support the first limiting rod 432 when the first limiting rod 432 slides to the lower end of the slide groove 4311, thereby preventing the second pressing block 42 from falling off the connecting rod 431. It can be understood that the second pressing block 42 is provided with a transverse hole for the first limiting rod 432 to be inserted transversely and inserted into the slide groove 4311, and a baffle is fixed on the transverse hole to block the transverse hole to prevent the first limiting rod 432 from falling out.

[0071] Reference Figure 6One end of the elastic member 433 abuts the first pressing block 41, and the other end abuts the second pressing block 42. The elastic member 433 is between the first pressing block 41 and the second pressing block 42, and plays the role of elastic buffer. When not in contact with the workpiece 11, the second pressing block 42 is kept at the lower end of the connecting rod 431. Specifically, the elastic member 433 can be a compression spring, and is sleeved on the connecting rod 431.

[0072] Reference Figure 6 and Figure 7 The spring rod assembly 43 further includes a second limiting rod 434. A first slot 4312 is provided at one end of the connecting rod 431 away from the second pressing block 42. The cross-sectional shape of the first slot 4312 matches the cross-sectional shape of the second limiting rod 434. The second limiting rod 434 is transversely inserted into the first pressing block 41 and penetrates the first slot 4312. That is, the first pressing block 41 and the connecting rod 431 are connected and fixed by the second limiting rod 434 and the first slot 4312. The first pressing block 41 is provided with a longitudinal hole, and the upper end of the connecting rod 431 is inserted into the hole. The first pressing block 41 is also provided with a transverse hole, and the second limiting rod 434 is inserted into the transverse hole and the first slot 4312. Since the cross-sectional shape of the first slot 4312 matches the cross-sectional shape of the second limiting rod 434, the second limiting rod 434 limits the upper and lower slot walls of the first slot 4312, so that the connecting rod 431 cannot slide up and down relative to the first pressing block 41, thereby connecting and fixing the upper end of the connecting rod 431 to the first pressing block 41. In addition, a baffle is fixed on the transverse hole on the first pressing block 41 to block the transverse hole and prevent the second limiting rod 434 from falling out.

[0073] Reference Figure 5 and Figure 7 The pressure head 40 further includes a third limiting rod 44. The first pressing block 41 is provided with a third through hole 411 for inserting the upper end of the first positioning member 51. The upper end of the first positioning member 51 is provided with a second slot 512. The cross-sectional shape of the second slot 512 matches the cross-sectional shape of the third limiting rod 44. The third limiting rod 44 is inserted into the first pressing block 41 and penetrates the second slot 512. The third limiting rod 44 is inserted into the first pressing block 41 and passes through the slot on the first positioning member 51. Since the cross-sectional shape of the slot matches the cross-sectional shape of the third limiting rod 44, the third limiting rod 44 limits the upper and lower groove walls of the second slot 512, so that the first positioning member 51 cannot slide up and down relative to the first pressing block 41, thereby connecting and fixing the upper end of the first positioning member 51 to the first pressing block 41. It can be understood that the first pressing block 41 is provided with a transverse hole for the third limiting rod 44 to be inserted, and then inserted into the second slot 512. In addition, a baffle is fixed on the transverse hole on the first pressing block 41 to block the transverse hole and prevent the third limiting rod 44 from falling out.

[0074] Reference Figure 5 and Figure 7 The PIN needle pressing device further includes a first driver 71, and the pressing head 40 further includes a connecting block 45, one end of the connecting block 45 is connected to the first driver 71, and the other end is connected to the upper end surface of the first pressing block 41, and the first driver is used to drive the connecting block to move up and down. Figure 2 The first driver 71 can drive the connection block 45 to rise and fall. The output end of the first driver 71 is connected to the connection block 45. The connection block 45 is driven by the first driver 71 to descend, thereby adjusting the direction of the PIN needle 12 and pressing it. After pressing, the connection block 45 is driven to rise again, and the pressing member 60 is separated from the PIN needle 12, so that the pressed workpiece 11 can be transferred to wait for another workpiece 11 and PIN needle 12 to be pressed down. The first driver 71 can be a cylinder.

[0075] In some embodiments, a plurality of workpieces 11 are loaded on a carrier platform 30 , and the PIN needle clamping device is provided with a plurality of pressing heads 40 , each workpiece 11 corresponds to a pressing head 40 , and each pressing head 40 can be driven by the same first driver 71 or by different first drivers 71 .

[0076] The first pressing block 41 is provided with a fourth through hole 412 which passes vertically therethrough. The upper end surface of the first pressing block 41 is also provided with a groove 413 which is connected to the fourth through hole 412. The clamping member 60 includes a pressure strip portion 61 and a limiting portion 62 provided at the upper end of the pressure strip portion 61. The pressure strip portion 61 passes through the fourth through hole 412 and the second through hole 422 and extends to the bottom of the second pressing block 42. The limiting portion 62 is embedded in the groove 413 and abuts against the connecting block 45.

[0077] The first pressing block 41 is connected to the first driver 71 through the connecting block 45, the pressing strip portion 61 of the pressing member 60 can be inserted into the fourth through hole 412, and the limiting portion 62 can be embedded in the groove 413, and then the connecting block 45 blocks the groove 413 and the upper end of the fourth through hole 412, so that the pressing member 60 is connected and fixed to the first pressing block 41. The connecting block 45 and the first pressing block 41 can be connected and fixed by screws or bolts.

[0078] Reference Figure 2 and 8 The PIN pressing device further comprises a frame 20 and a slide rail assembly 90.

[0079] The frame 20 is arranged at the pressing station, and can provide a connection foundation for the lifting and lowering of the pressing head 40. The slide rail assembly 90 includes a slide rail 91 and a slider 92 that slides with the slide rail 91. The slide rail 91 is vertically arranged on the frame 20, and the connecting block 45 is arranged on the slider 92. That is, the slide rail assembly 90 provides a guide limit for the lifting and sliding of the connecting block 45, ensuring that the connecting block 45 can stably lift and slide up and down, and ensuring the action accuracy when the PIN needle 12 is pressed.

[0080] The first positioning member 51 includes a guide surface 511 located at one side of the lower end of the positioning slit 52. The positioning slit 52 can be matched with the welding portion 122 for insertion. The spacing between the two guide surfaces 511 gradually decreases from bottom to top. When the ram 40 descends, the first positioning assembly 50 descends together with it. The guide surface 511 located at the lower end first contacts the welding portion 122 of the PIN needle 12. Since the two guide surfaces 511 are wider at the bottom and narrower at the top, when the guide surface 511 contacts the welding portion 122, it will guide the welding portion 122 into the positioning slit 52.

[0081] Reference Figure 2 The carrying platform 30 is provided with a receiving groove 31 adapted to the workpiece 11 to accommodate and position the workpiece 11 .

[0082] Reference Figure 2 and Fig. 9 , the carrier 30 is transported to the pressing station by the conveying mechanism. A plurality of carriers 30 arranged in sequence can be arranged on the conveying mechanism. The conveying mechanism passes through the pressing station, so that each carrier 30 can be transported through the pressing station, and each carrier 30 will stay for a short period of time when passing through the pressing station, so that the first positioning component 50 and the pressing member 60 can adjust the direction and press the workpiece 11 and the PIN needle 12 on the carrier 30. Before the carrier 30 reaches the pressing station, it passes through another station. When passing through the station, the worker or equipment places the workpiece 11 pre-inserted with the PIN needle 12 on the carrier 30 or pre-inserts the PIN needle 12 into the workpiece 11 on the carrier 30. That is, the carriers 30 transported by the conveying mechanism to the pressing station are all loaded with the workpiece 11, and the workpiece 11 is pre-inserted with the PIN needle 12. The conveying mechanism can be a conveying guide rail or a conveyor belt.

[0083] The PIN needle pressing device further includes a second positioning assembly 80 and a second driver 72 .

[0084] Reference Figure 2 and Fig. 9The second positioning assembly 80 includes a second positioning member 81 and a positioning pin 82. The second positioning member 81 can be raised and lowered at the pressing station. The second positioning member 81 is provided with a pin hole 811. The positioning pin 82 is provided on the carrier 30. When the carrier 30 is located at the pressing station, the positioning pin 82 corresponds to the position of the pin hole 811. The second driver 72 is used to drive the second positioning member 81 to rise and fall, so that the positioning pin 82 is inserted into the pin hole 811, or the positioning pin 82 is separated from the pin hole 811. When the conveying mechanism conveys the carrier 30 to the pressing station, the second driver 72 drives the second positioning member 81 down, so that the pin hole 811 on the second positioning member 81 cooperates with the positioning pin 82 on the carrier 30 to position, thereby accurately positioning the position of the carrier 30 at the pressing station, and then the first driving mechanism drives the pressure head 40 to descend, adjust the direction of the PIN pin 12 and press it. After the PIN pin 12 is pressed, the first driving mechanism rises, and the pressure head 40 rises accordingly and separates from the workpiece 11. The second driver 72 then drives the second positioning member 81 to rise, so that the positioning pin 82 is separated from the pin hole 811, and the conveying mechanism conveys the carrier 30 away from the pressing station and conveys another carrier 30 to be pressed to the pressing station. The second driver 72 may be a cylinder.

[0085] The second positioning member 81 is L-shaped and is mounted on the frame 20 via a guide rail assembly. It is driven by the second driver 72 to move up and down along the guide rail assembly.

[0086] Reference Fig. 9 The upper end of the positioning pin 82 is tapered, and when it cooperates with the pin hole 811, it can automatically guide, allowing the positioning pin 82 to be better inserted into the pin hole 811.

[0087] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A PIN pin pressing device, wherein the workpiece comprises a pinhole and a welding surface located on one side of the pinhole, the PIN pin comprises a main pin portion and a welding portion extending from the main pin portion, the main pin portion is pre-inserted into the pinhole, and is characterized in that: The PIN needle pressing device comprises: A carrier platform, located at the pressing station, the carrier platform is used to load the workpiece, and after the workpiece is loaded on the carrier platform, the welding surface and the pinhole are arranged along a first direction; The pressing head is arranged above the pressing station in a manner that it can be raised and lowered; A first positioning assembly includes two first positioning members disposed at the bottom of the pressure head, and a positioning gap extending along the first direction is formed between the two first positioning members; and A pressing member is arranged at the bottom of the pressure head, the lower end of the pressing member is higher than the lower end of the first positioning member, and the pressing member can press down the main needle part when descending.

2. The PIN needle pressing device according to claim 1, characterized in that: The pressing head comprises a first pressing block, a second pressing block and a spring rod assembly, wherein the first pressing block is arranged above the pressing station in a liftable manner, one end of the spring rod assembly is connected to the first pressing block, and the other end is connected to the second pressing block, and the second pressing block can compress the spring rod assembly to be close to the first pressing block; The second pressing block is provided with a first through hole and a second through hole, one end of the first positioning member is connected to the first pressing block, and the other end thereof passes through the first through hole and extends to the bottom of the second pressing block, and one end of the pressing member is connected to the first pressing block, and the other end thereof passes through the second through hole and extends to the bottom of the second pressing block; Before starting to press downward, the height difference between the second pressing block and the workpiece is smaller than the height difference between the first positioning member and the welding portion.

3. The PIN needle pressing device according to claim 2, characterized in that: The spring rod assembly comprises: A connecting rod, one end of which is fixed to the first pressing block, and the other end of which is provided with a sliding groove extending along the axial direction of the connecting rod and passing through the second pressing block; a first limiting rod, which is laterally inserted into the second pressing block and passes through the sliding groove, and the first limiting rod slides along the sliding groove when the second pressing block approaches the first pressing block; The elastic member has one end abutting against the first pressing block, and the other end abutting against the second pressing block.

4. The PIN needle pressing device according to claim 3, characterized in that: The spring rod assembly also includes a second limiting rod, and a first slot is provided at one end of the connecting rod away from the second pressure block. The cross-sectional shape of the first slot is adapted to the cross-sectional shape of the second limiting rod, and the second limiting rod is laterally inserted into the first pressure block and penetrates the first slot.

5. The PIN needle pressing device according to claim 2, characterized in that: The pressure head also includes a third limiting rod, the first pressure block is provided with a third through hole for the upper end of the first positioning member to be inserted, the upper end of the first positioning member is provided with a second slot, the cross-sectional shape of the second slot is adapted to the cross-sectional shape of the third limiting rod, and the third limiting rod is inserted into the first pressure block and passes through the second slot.

6. The PIN needle pressing device according to claim 2, characterized in that: The PIN needle pressing device further includes a first driver, and the pressing head further includes a connecting block, one end of the connecting block is connected to the first driver, and the other end is connected to the upper end surface of the first pressing block, and the first driver is used to drive the connecting block to move up and down; The first pressing block is provided with a fourth through hole which passes vertically therethrough, and the upper end surface of the first pressing block is also provided with a groove which is connected with the fourth through hole, and the clamping member includes a pressure strip portion and a limiting portion arranged at the upper end of the pressure strip portion, the pressure strip portion passes through the fourth through hole and the second through hole and extends to the bottom of the second pressing block, and the limiting portion is embedded in the groove and abuts against the connecting block.

7. The PIN needle pressing device according to claim 6, characterized in that: The PIN needle pressing device also includes: A frame, arranged at the pressing station; The slide rail assembly comprises a slide rail and a sliding block which slides with the slide rail, wherein the slide rail is vertically arranged on the frame, and the connecting block is arranged on the sliding block.

8. The PIN needle pressing device according to claim 1, characterized in that: The first positioning member includes a guide surface, and the guide surface is located at one side of the lower end of the positioning seam. The positioning seam can be used for the welding part to be matched and inserted, and the distance between the two guide surfaces gradually decreases from bottom to top.

9. The PIN needle pressing device according to claim 1, characterized in that: The carrying platform is transported to the pressing station by a transport mechanism; The PIN needle pressing device also includes: A second positioning component includes a second positioning member and a positioning pin, wherein the second positioning member is movably disposed at the pressing station, the second positioning member is provided with a pin hole, the positioning pin is disposed on the bearing platform, and when the bearing platform is located at the pressing station, the positioning pin corresponds to the position of the pin hole; The second driver is used to drive the second positioning member to move up and down so that the positioning pin is inserted into the pin hole, or the positioning pin is disengaged from the pin hole.

10. The PIN needle pressing device according to claim 9, characterized in that: The upper end of the positioning pin is tapered.

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