An apparatus for assembling a one-time plug-in contact clip
By using automated equipment to achieve precise positioning of the plug-in contact pins and bending of the spring clips, the positioning and force control problems in traditional manual assembly are solved, thus improving assembly quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG XIANGHONG ELECTRIC CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-06-09
AI Technical Summary
When assembling a single plug-in contact by hand in the traditional method, it is difficult to achieve precise positioning of the small buckle and control of the angle and force of the spring, resulting in inconsistent workmanship and low yield.
The equipment includes a conveyor belt, a feeding assembly, grippers, a clamping drive, and a bending plate. Through the movement, clamping, and release of the grippers, the small buckles are automatically grasped, moved, and the springs are bent. The stability is improved by combining the clamping components and the fixing table.
This achieves precise positioning of the small buckle and consistent bending of the spring clips, improving assembly quality and yield, and enhancing assembly efficiency and flexibility.
Smart Images
Figure CN224342194U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of primary plug-in contact processing, and in particular to a device for assembling primary plug-in contact pins. Background Technology
[0002] Primary plug-in contacts refer to connectors used on primary circuits in a distribution cabinet, which complete circuit conduction through the mating of moving and stationary plugs. Primary plug-in contacts employ a stacked, modular design, such as... Figure 1 As shown, the primary plug-in contact consists of four long strips 14, two side strips 15, a large sleeve 16, and a small buckle 17. The large sleeve 16 and the long strips 14 are provided with through holes 161 for the small buckle 17 to pass through, and the small buckle 17 is provided with two spring pieces 171.
[0003] In related technologies, when assembling a single plug-in contact, first overlap the four long strips 14 in pairs, then install the two side strips 15 on both sides of the long strips 14 respectively, then fit the large sleeve 16 onto the long strips 14 and the side strips 15, finally insert the small buckle 17 into the through hole 161, and then bend the spring piece 171 and fit it into the large sleeve 16.
[0004] However, the traditional method of manually assembling the small buckle 17 makes it difficult to achieve precise positioning, and the angle and force of bending the spring 171 each time are difficult to control, resulting in inconsistent workmanship of each primary plug-in contact, and even poor workmanship and low yield of the primary plug-in contact. Therefore, it needs to be improved. Utility Model Content
[0005] In order to improve the processing quality of primary plug-in contacts, this application provides a device for assembling primary plug-in contact clips.
[0006] The device for assembling a single-insertion contact pin provided in this application adopts the following technical solution:
[0007] A device for assembling single-insert contact pins includes a frame, a conveyor belt mounted on the frame, and a feeding assembly. The feeding assembly includes a first gripper, a second gripper, a clamping drive, a pressing drive, and a translating drive. The clamping drive drives the first and second grippers to move closer to or further away from each other. A bending plate is slidably mounted on both the first and second grippers. Each bending plate includes a sliding portion slidably mounted on the first and second grippers and a bending portion positioned between the first and second grippers. The sliding direction of the sliding portion is consistent with the moving direction of the first gripper. The pressing drive drives the first and second grippers to move vertically closer to or further away from the conveyor belt. The translating drive drives the first and second grippers to move horizontally closer to or further away from the conveyor belt.
[0008] By adopting the above technical solution, when it is necessary to install the small buckle on the large sleeve and the long strip, the translation drive first moves the first and second clamps to the area outside the conveyor belt, and then the pressing drive presses down the first and second clamps so that the first and second clamps are located on both sides of the small buckle. Then the clamping drive drives the first and second clamps to move closer to each other. At this time, the two bent parts slide towards each other, so that the small buckle is clamped by the first and second clamps. The two spring pieces of the small buckle are clamped between the bent parts and the first and second clamps, respectively. The bent parts abut against the two spring pieces, so that the two spring pieces are not easily deformed by the first and second clamps.
[0009] Then, the downward-pressing drive moves the first and second grippers upward to remove the small buckle. The lateral drive moves the first and second grippers onto the conveyor belt. The downward-pressing drive then moves the first and second grippers downward, allowing the small buckle to pass through the perforations in the large sleeve and the long strip. The clamping drive then moves the first and second grippers away from each other, causing the sliding parts to slide on them. When the ends of the two sliding parts closest to each other reach their maximum distance from the first and second grippers, the first and second grippers continue to move away from each other. This causes the sliding parts to move the bending parts away from each other, bending and fitting the two spring clips of the small buckle onto the large sleeve, thus completing the small buckle assembly process. The assembled primary insert contact is moved out of the processing station by the conveyor belt, which simultaneously moves the primary insert contact of the small buckle to be assembled back to the processing station for the next assembly.
[0010] The feeding component can automatically grasp, move, and bend the spring clips of the primary plug-in contacts, eliminating the need for manual operation. This solves the problems of inaccurate positioning of the small clips and difficulty in controlling the angle and force of bending the spring clips in traditional manual assembly, ensuring consistent workmanship for each primary plug-in contact and improving the workmanship quality and yield of the primary plug-in contacts.
[0011] Optionally, the clamping drive includes a first lead screw rotatably mounted on a first jaw, a second lead screw rotatably mounted on a second jaw, and a fixing block mounted on the first jaw and the second jaw. The first jaw and the second jaw are slidably mounted on the fixing block, and the fixing block is provided with two drive motors. The output shafts of the two drive motors are respectively connected to the first lead screw and the second lead screw.
[0012] By adopting the above technical solution, when the small buckle needs to be clamped, the two drive motors drive the first and second lead screws to rotate, thereby causing the first and second grippers to move closer to each other, and the two bending plates to move closer to each other, so as to achieve stable clamping of the small buckle. When the small buckle has been inserted into the large sleeve and needs to be released, the two drive motors drive the first and second lead screws to rotate in opposite directions, causing the first and second grippers to move away from each other, and the two bending plates to move away from each other, so as to realize the bending process of the two spring pieces of the small buckle, and at the same time release the small buckle, so that the first and second grippers can bend the spring pieces while inserting the small buckle, thereby ensuring the consistency of bending work.
[0013] In addition, the clamping action of the two grippers is controlled by the first lead screw and the second lead screw in conjunction with an independent drive motor, so as to achieve precise adjustment of the gripper spacing, adapt to the clamping requirements of small buckles of different sizes, and at the same time ensure the stability of the clamping force, so as to prevent the small buckles from shifting or deforming during the assembly process.
[0014] Optionally, it also includes a clamping component mounted on the frame, a clamping cylinder connected to the clamping component, a fixed platform on the conveyor belt, a receiving groove for accommodating a primary insert contact on the fixed platform, and the clamping cylinder for driving the clamping component to move toward or away from the fixed platform.
[0015] By adopting the above technical solution, when assembling the small buckle, the worker can first place the primary plug-in contact in the receiving groove. The groove wall can prevent the primary plug-in contact from moving freely, improving the stability of the primary plug-in contact during the assembly of the small buckle, thereby further improving the assembly quality and efficiency. When the conveyor belt transports the primary plug-in contact to be processed to the processing station, the clamping cylinder will drive the clamping component to move closer to the fixed table, so that the primary plug-in contact is pressed against the receiving groove. This reduces the possibility of the primary plug-in contact coming out of the receiving groove or shaking during the assembly process, making it easier for the first and second grippers to pass the small buckle into the through holes of the large sleeve and the long strip. This reduces the assembly failure caused by misalignment of the small buckle and the primary plug-in contact, and improves processing efficiency.
[0016] Optionally, each of the two sliding portions has an abutment block on the side closest to each other, and the two abutment blocks are detachably connected to the sliding portions.
[0017] By adopting the above technical solution, when the clamping drive moves the first and second jaws closer to each other, it causes the two sliding parts to slide closer to each other as well. Then, the two abutting blocks abut against each other, fixing the distance between the two bent parts. As the first and second jaws continue to move closer to each other, the sliding parts slide on the first and second jaws, and the distance between the first and second jaws and the bent parts decreases, thus clamping the snap fastener's spring clip between the bent parts and the first and second jaws. When different sizes of snap fasteners need to be installed, the original abutting blocks can be removed from the sliding parts, and then abutting blocks of different lengths can be installed on the sliding parts. When the abutting blocks of different lengths abut against each other, the distance between the two bent parts will also be different, thereby adjusting the minimum distance between the two bent parts and the first and second jaws to accommodate snap fasteners of different sizes. This design allows the first and second jaws to install snap fasteners of different sizes, improving the flexibility of the processing equipment.
[0018] Optionally, the first and second grippers are each provided with mounting holes for the sliding parts to pass through. The first and second grippers are provided with limiting grooves on the side away from each other. The limiting grooves are connected to the mounting holes. The two sliding parts are provided with limiting blocks on the side away from each other. The width of the mounting hole is smaller than the width of the limiting groove and the limiting block. The limiting block is slidably disposed in the limiting groove.
[0019] By adopting the above technical solution, when the sliding part slides in the mounting hole, the limiting block and the bending part are located at both ends of the sliding part, which can prevent the sliding part from sliding out of the mounting hole, making the sliding part highly stable, easy to clamp the buckle, and easy to bend the spring piece on the buckle.
[0020] Optionally, the minimum distance between the bent portion and the first and second grippers is less than the thickness of the small buckle, and the maximum distance between the bent portion and the first and second grippers is greater than the length of the spring sheet along the sliding direction of the sliding portion.
[0021] By adopting the above technical solution, when the first and second grippers approach each other, the spring clips of the small buckle are stably clamped between the bent portion and the first and second grippers. When the first and second grippers move away from each other, the bent portion is blocked by the spring clips, causing the sliding portion to slide in the mounting hole, making the distance between the bent portion and the first and second grippers increasingly larger, until the limiting block abuts against the groove wall of the limiting groove near the mounting hole. At this point, the first and second grippers will drive the two sliding portions and the two bent portions to move away from each other, so that the bent portion will bend the two spring clips of the small buckle away from each other, and the bent portion will continuously apply pressure to the spring clips, so that the bent spring clips fit against the large sleeve. When the spring is bent, the distance between the bent part and the first and second clamps is greater than the length of the spring, making it less likely for the spring to touch the first and second clamps. This makes it less likely for the spring to be bent a second time and less likely for the spring to get stuck between the bent part and the first and second clamps, thus improving the smoothness and safety of the bending operation and improving the bending quality.
[0022] Optionally, the translation drive includes a mounting plate mounted on the frame, a translation cylinder mounted on the mounting plate, and a sliding plate slidably mounted on the mounting plate. The sliding plate is connected to the piston rod of the translation cylinder, and the fixing block is mounted on the sliding plate.
[0023] By adopting the above technical solution, when the small buckle needs to be moved onto the conveyor belt, the translation cylinder will drive the sliding plate to slide horizontally on the mounting plate, thereby driving the fixed block to move horizontally, which in turn drives the first gripper and the second gripper to move horizontally, so as to move the small buckle onto the conveyor belt for assembly.
[0024] Optionally, the pressing drive includes a pressing cylinder disposed on the sliding plate, the fixing block is connected to the piston rod of the pressing cylinder, and the fixing block is slidably disposed on the sliding plate.
[0025] By adopting the above technical solution, when it is necessary to insert the small buckle into the large sleeve and the long strip, the pressing cylinder will drive the fixing block to slide vertically on the sliding plate, thereby driving the first clamp and the second clamp to slide vertically, so as to insert the small buckle held on the first clamp and the second clamp into the large sleeve and the long strip.
[0026] In summary, this application includes at least one of the following beneficial technical effects:
[0027] 1. The first and second grippers are used to clamp and precisely position the buckle. A clamping device and a fixing platform are provided on the conveyor belt to stabilize the primary plug-in contact. Compared with manual assembly of the buckle, the installation accuracy of the buckle is higher.
[0028] 2. Bending plates are slidably provided on the first and second grippers, which can simultaneously release the small buckle and bend the spring piece, resulting in high assembly efficiency;
[0029] 3. The abutment block is detachably mounted on the sliding part, making the minimum distance between the two bends adjustable, which is convenient for installing small buckles of different sizes. Attached Figure Description
[0030] Figure 1 This is a schematic diagram of the overall structure of a primary plug-in contact in related technologies.
[0031] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application.
[0032] Figure 3 This is a partial structural schematic diagram of the clamping drive component used in the embodiments of this application.
[0033] Figure 4 yes Figure 3 Enlarged view of point A in the middle.
[0034] Explanation of reference numerals in the attached figures:
[0035] 1. Frame; 11. Main motor; 12. Vibratory feeder; 13. Clamping cylinder; 14. Long strip; 15. Side strip; 16. Large sleeve; 161. Perforation; 17. Small buckle; 171. Spring piece; 2. Conveyor belt; 3. Feeding assembly; 31. First gripper; 311. Mounting hole; 312. Limiting groove; 32. Second gripper; 33. Clamping drive component; 331. First lead screw; 332. Second lead screw; 333. Fixing block; 334. Drive motor; 34. Pressing drive component; 341. Pressing cylinder; 35. Translation drive component; 351. Mounting plate; 352. Sliding plate; 353. Translation cylinder; 4. Clamping component; 5. Fixed platform; 51. Receiving groove; 6. Bending plate; 61. Sliding part; 611. Limiting block; 612. Abutment block; 62. Bending part. Detailed Implementation
[0036] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0037] This application discloses a device for assembling a single-insert plug-in contact clip.
[0038] Reference Figure 2 and Figure 3A device for assembling single-insert contact pins includes a frame 1, a conveyor belt 2 mounted on the frame 1, a feeding assembly 3, a clamping component 4 mounted on the frame 1, and a fixed platform 5. The frame 1 is equipped with a main motor 11 for driving the conveyor belt 2 to rotate. The frame 1 also includes a vibratory feeder 12, with its discharge track positioned on one side of the conveyor belt 2. The feeding assembly 3, mounted on the frame 1, includes a first gripper 31, a second gripper 32, a clamping drive component 33, a pressing drive component 34, and a translational drive component 35.
[0039] Reference Figure 3 The clamping drive component 33 includes a first lead screw 331 rotatably mounted on a first jaw 31, a second lead screw 332 rotatably mounted on a second jaw 32, and a fixing block 333 mounted on the first jaw 31 and the second jaw 32. The first jaw 31 and the second jaw 32 are slidably connected to the fixing block 333. The fixing block 333 is equipped with two drive motors 334, and the output shafts of the two drive motors 334 are respectively connected to the first lead screw 331 and the second lead screw 332. When the drive motors 334 drive the first lead screw 331 and the second lead screw 332 to rotate, the first jaw 31 and the second jaw 32 move towards or in opposite directions on the first lead screw 331 and the second lead screw 332, respectively.
[0040] Reference Figure 3 The translation drive 35 includes a mounting plate 351 mounted on the frame 1, a sliding plate 352 slidably mounted on the mounting plate 351, and a translation cylinder 353 mounted on the mounting plate 351. The sliding plate 352 is connected to the piston rod of the translation cylinder 353, which extends and retracts horizontally to drive the first gripper 31 and the second gripper 32 to move horizontally toward or away from the conveyor belt 2. A fixing block 333 is slidably mounted on the sliding plate 352. The pressing drive 34 includes a pressing cylinder 341 mounted on the sliding plate 352, with the fixing block 333 connected to the piston rod of the pressing cylinder 341. The pressing cylinder 341 extends and retracts vertically to drive the first gripper 31 and the second gripper 32 to move vertically toward or away from the conveyor belt 2.
[0041] Reference Figure 3 The fixed platform 5 has a receiving groove 51 for accommodating the primary plug-in contact. The frame 1 is equipped with a clamping cylinder 13. The clamping member 4 is connected to the piston rod of the clamping cylinder 13. The piston rod of the clamping cylinder 13 extends and retracts in the vertical direction to move the clamping member 4 toward or away from the fixed platform 5. The main motor 11, drive motor 334, clamping cylinder 13, translation cylinder 353, and pressing cylinder 341 are all electrically connected to a controller (not shown in the figure).
[0042] Reference Figure 4A bending plate 6 is slidably provided on both the first gripper 31 and the second gripper 32, and mounting holes 311 and limiting grooves 312 are provided on both the first gripper 31 and the second gripper 32. The two mounting holes 311 are located on the side of the first gripper 31 and the second gripper 32 that are close to each other, and the two limiting grooves 312 are located on the side of the first gripper 31 and the second gripper 32 that are far away from each other. The mounting holes 311 and the limiting grooves 312 are connected.
[0043] Reference Figure 4 Both bending plates 6 include a sliding part 61 slidably disposed in the mounting hole 311 and a bending part 62 disposed between the first gripper 31 and the second gripper 32. The sliding direction of the sliding part 61 is consistent with the moving direction of the first gripper 31. Each of the two sliding parts 61 is provided with a limiting block 611 on the side away from each other. The limiting block 611 is slidably disposed in the limiting groove 312. The width of the mounting hole 311 is smaller than the width of the limiting groove 312 and the limiting block 611. Both bending parts 62 are disposed at the end of the sliding part 61 away from the limiting block 611.
[0044] Reference Figure 4 Each of the two sliding portions 61 has an abutment block 612 on one side closest to each other. Both abutment blocks 612 are detachably connected to the sliding portion 61. The detachable connection method can be bolt connection, snap-fit, etc., any method that can achieve a detachable connection between the abutment block 612 and the sliding portion 61 is acceptable. The minimum distance between the bent portion 62 and the first clamping claw 31 and the second clamping claw 32 is less than the thickness of the small buckle, so that when the first clamping claw 31 and the second clamping claw 32 are close to each other, the small buckle can be stably clamped between the bent portion 62 and the first clamping claw 31 and the second clamping claw 32.
[0045] Reference Figure 4 The maximum distance between the bent portion 62 and the first claw 31 and the second claw 32 is greater than the length of the spring piece along the sliding direction of the sliding portion 61, so that the first claw 31 and the second claw 32 slide in a direction away from each other. When the two spring pieces of the small buckle are bent, the spring pieces are not likely to touch the first claw 31 and the second claw 32, so that the spring pieces are not likely to jam the bent portion 62.
[0046] The implementation principle of the device for assembling a small plug-in contact buckle according to an embodiment of this application is as follows: When assembling the buckle, the controller first controls the translation cylinder 353 to start, moving the first gripper 31 and the second gripper 32 to the discharge track of the vibrating plate 12. Then, the controller controls the pressing cylinder 341 to start, moving the first gripper 31 and the second gripper 32 closer to the buckle, so that the two spring pieces of the buckle are located between the bending part 62 and the first gripper 31 and the second gripper 32. Then, the controller controls the drive motor 334 to start, so that the first gripper 31 and the second gripper 32 move closer to each other, thereby clamping the buckle. Then, the controller controls the pressing cylinder 341 and the translation cylinder 353 to start in sequence, so that the buckle is inserted into the through hole of the large sleeve. Finally, the controller controls the drive motor 334 to start, so that the first gripper 31 and the second gripper 32 move away from each other, thereby bending the spring pieces of the buckle. The small buckle is installed on the large sleeve through a fixed action process, eliminating the need for manual positioning of the small buckle and the large sleeve. While pressing the small buckle, the spring is bent and fitted onto the large sleeve, improving the accuracy and efficiency of assembly.
[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A device for assembling a single-insertion plug-in contact pin, characterized in that: The assembly includes a frame (1), a conveyor belt (2) mounted on the frame (1), and a loading assembly (3). The loading assembly (3) includes a first gripper (31), a second gripper (32), a clamping drive (33), a pressing drive (34), and a translation drive (35). The clamping drive (33) drives the first gripper (31) and the second gripper (32) to move closer to or further away from each other. Bending plates (6) are slidably mounted on both the first gripper (31) and the second gripper (32). Each bending plate (6) includes a component slidably mounted on the first gripper (31). The sliding part (61) on the first gripper (31) and the second gripper (32) and the bending part (62) provided between the first gripper (31) and the second gripper (32) are provided. The sliding direction of the sliding part (61) is consistent with the moving direction of the first gripper (31). The pressing drive (34) is used to drive the first gripper (31) and the second gripper (32) to move in the vertical direction toward or away from the conveyor belt (2). The translation drive (35) is used to drive the first gripper (31) and the second gripper (32) to move in the horizontal direction toward or away from the conveyor belt (2).
2. The device for assembling a single-insert contact pin according to claim 1, characterized in that: The clamping drive component (33) includes a first lead screw (331) rotatably mounted on a first jaw (31), a second lead screw (332) rotatably mounted on a second jaw (32), and a fixing block (333) mounted on the first jaw (31) and the second jaw (32). The first jaw (31) and the second jaw (32) are slidably mounted on the fixing block (333). The fixing block (333) is provided with two drive motors (334), and the output shafts of the two drive motors (334) are respectively connected to the first lead screw (331) and the second lead screw (332).
3. The device for assembling a single-piece plug-in contact clip according to claim 2, characterized in that: It also includes a clamping member (4) set on the frame (1), a clamping cylinder (13) connected to the clamping member (4), a fixed platform (5) provided on the conveyor belt (2), a receiving groove (51) for accommodating the primary plug-in contact on the fixed platform (5), and the clamping cylinder (13) for driving the clamping member (4) to move towards or away from the fixed platform (5).
4. The device for assembling a single-insert contact pin according to claim 1, characterized in that: Each of the two sliding portions (61) has an abutment block (612) on one side close to the other, and the two abutment blocks (612) are detachably connected to the sliding portion (61).
5. The device for assembling a single-insert contact pin according to claim 1, characterized in that: The first gripper (31) and the second gripper (32) are each provided with a mounting hole (311) for the sliding part (61) to pass through. The first gripper (31) and the second gripper (32) are provided with a limiting groove (312) on the side away from each other. The limiting groove (312) is connected to the mounting hole (311). The two sliding parts (61) are each provided with a limiting block (611) on the side away from each other. The width of the mounting hole (311) is smaller than the width of the limiting groove (312) and the limiting block (611). The limiting block (611) is slidably disposed in the limiting groove (312).
6. The device for assembling a single-insert contact pin according to claim 5, characterized in that: The minimum distance between the bent portion (62) and the first clamp (31) and the second clamp (32) is less than the thickness of the small buckle (17), and the maximum distance between the bent portion (62) and the first clamp (31) and the second clamp (32) is greater than the length of the spring piece (171) along the sliding direction of the sliding portion (61).
7. The device for assembling a single-insert contact pin according to claim 2, characterized in that: The translation drive component (35) includes a mounting plate (351) mounted on the frame (1), a translation cylinder (353) mounted on the mounting plate (351), and a sliding plate (352) slidably mounted on the mounting plate (351). The sliding plate (352) is connected to the piston rod of the translation cylinder (353), and the fixing block (333) is mounted on the sliding plate (352).
8. The device for assembling a single-insert contact pin according to claim 7, characterized in that: The pressing drive (34) includes a pressing cylinder (341) disposed on a sliding plate (352), and a fixing block (333) is connected to the piston rod of the pressing cylinder (341). The fixing block (333) is slidably disposed on the sliding plate (352).