High-speed accurate pin inserting equipment on PCB (Printed Circuit Board)

Abstract

The utility model discloses a high-speed accurate pin inserting device on a PCB. The high-speed accurate pin inserting device is provided with a pin inserting device frame which is convenient to position and assemble. Comprising circular vibration discs which are installed on the left side and the right side of a pin inserting equipment frame, straight vibrator rails are installed on the side faces of the outer surfaces of the circular vibration discs, pin inserting bodies are conveyed on the upper surfaces of the straight vibrator rails, meanwhile, a rotary disc distributor is arranged on the side edge of each straight vibrator rail, and a distributing and feeding mechanism is arranged on each rotary disc distributor; the first taking and placing visual device is installed on the inner side of the pin inserting equipment frame. According to the high-speed accurate pin inserting equipment on the PCB, automatic pin feeding and inserting are carried out in a vibration disc mode, then rapid material distribution is achieved through butt joint of a DDR motor rotating disc and a straight vibration opening in a multi-station mode, then the rapid pin feeding and inserting procedure is achieved through cooperation of an ejector structure and a mechanical arm suction nozzle, and automatic butt joint of an upper PCB body and a lower PCB body is carried out through a material box mode and a movable platform; and the contact pin hole is accurately positioned in cooperation with vision, so that the contact pin body is accurately taken and placed at a high speed.

Description

Technical Field

[0001] This utility model relates to the field of PCB board pin insertion technology, specifically a high-speed and precise pin insertion device on a PCB board. Background Technology

[0002] With the rapid development of technology, finished circuit boards are widely used in consumer electronics, information and communication, automotive electronics, and high-tech fields. In the production process of finished circuit boards, most PCBs require pin insertion. Currently, large domestic manufacturers use imported equipment, which is costly and inefficient. In practice, some small and medium-sized enterprises use manual labor or a combination of a shaking plate or sieve with a fixture to insert the pins into the corresponding holes on the PCB, and then use a stamping process to press the pins onto the PCB. Both of these methods require significant labor costs and are relatively inefficient.

[0003] To overcome the aforementioned shortcomings, existing technology (Chinese patent application CN202222115246.6, filed on 2022-08-11) provides a movable precision pin feeding mechanism for an automatic pin insertion machine. By setting a hole inspection device before the pin insertion operation, the existing technology can pre-inspect the holes on the PCB board, preventing blockages caused by poor surface metallization or foreign objects from affecting subsequent pin insertion operations. This not only ensures product quality reliability but also facilitates continuous operation, preventing blockages from a single PCB board's holes. The blockage can prevent subsequent operations from proceeding. Although existing technologies can complete the pin insertion, the manual placement of pins during the work process results in high costs and low efficiency when using imported equipment. It is easy to place the pins in the wrong direction or miss them. In addition, the use of a chuck with a fixture to drop the pins into the corresponding pin holes on the PCB requires different blanking fixtures for different PCBs, which increases costs. Furthermore, repeated shaking in the chuck can deform some pin leads, preventing them from falling completely into the hole, resulting in some pins missing into the hole, which requires manual inspection and repair, increasing labor costs.

[0004] To address the aforementioned issues, there is an urgent need for innovative designs based on existing PCB board pin insertion devices. Utility Model Content

[0005] The purpose of this invention is to provide a high-speed, precise pin insertion device on a PCB board, to solve the problems mentioned in the background art, such as the high cost and low efficiency of using imported equipment due to manual pin placement during operation, the easy misplacement or omission of pins, and the need for different blanking fixtures for different PCBs, which increases costs. In addition, repeated shaking in the tumbler can deform some pin leads, preventing them from falling completely into the hole, resulting in some pins missing and requiring manual inspection and repair, which increases labor costs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-speed, high-precision pin insertion device on a PCB board, comprising a pin insertion device frame for easy positioning and assembly; including: a circular vibratory plate, installed on the left and right sides of the pin insertion device frame, with a straight vibrator track installed on the outer surface of the circular vibratory plate, and a pin body conveyed on the upper surface of the straight vibrator track; a turntable distributor is provided on the side of the straight vibrator track, and the turntable distributor is provided with a material feeding mechanism; a first pick-and-place vision device is installed inside the pin insertion device frame, and a second pick-and-place vision device is installed inside the pin insertion device frame; a moving platform is installed inside the pin insertion device frame, with a PCB board body conveyed on the upper surface of the moving platform; a pick-and-place pin holder is installed inside the pin insertion device frame, and the pick-and-place pin holder is provided with a rotation and lifting mechanism.

[0007] Preferably, the circular vibratory plate and the straight vibrator track are located at the middle section of the inner surface of the pin insertion device frame, and the straight vibrator track and the pin body form a conveying structure, and the pin body and the turntable feeder form a docking feeding mechanism.

[0008] The above structure facilitates stable feeding of the insert body during use, improving feeding stability.

[0009] Preferably, the material feeding mechanism includes a material feeding station slidably connected to the upper surface of the rotary distributor, and a tension spring elastically connects the material feeding station and the rotary distributor. A clamp is nested on the inner surface of the material feeding station, and an extrusion block is installed on the lower surface of the material feeding station. The rotary distributor and the material feeding station form an elastic sliding structure through the tension spring. The material feeding station is set at an equal angle to the middle section of the inner surface of the rotary distributor. The material feeding station and the pin body form an elastic locking structure through the clamp. The material feeding station and the extrusion block form an integrated structure.

[0010] The above structure facilitates efficient material distribution and conveying during use, thereby controlling the ease of feeding and preventing material detachment.

[0011] Preferably, a discharge gate is installed on the front side of the rotary feeder, and an extrusion member is telescopically connected to the upper surface of the discharge gate. A roller is rotatably connected to the outer surface of the extrusion member, and the roller is attached to the outer side of the extrusion block. The rotary feeder forms a lifting structure with the discharge gate and the extrusion member, and the extrusion member forms an extrusion structure with the extrusion block through the roller.

[0012] The above structure controls the stability of the feeding of the pin body at the material distribution station on the extrusion block during use.

[0013] Preferably, a rotating component is rotatably mounted on the rear support of the rotary feeder, and a connecting rod is rotatably connected to the outer surface of the rotating component. A pusher seat is rotatably connected to the upper surface of the connecting rod, and the pusher seat is limited and slidably mounted on the rear support of the rotary feeder. At the same time, a push pin is installed on the inner surface of the pusher seat. The rotary feeder forms a circumferential linear movement structure with the pusher seat through the rotating component and the connecting rod, and the pusher seat and the push pin form an integrated structure.

[0014] With the above structure, a pusher mechanism is installed at the bottom of the material loading position of the rotary feeder during use, which sends the pin body to the suction nozzle of the picking and placing robot arm to complete the loading of the pin body.

[0015] Preferably, the first and second pick-and-place vision devices are symmetrically arranged about the middle of the inner surface of the pin insertion device frame, and the pin insertion device frame and the moving platform form an embedded installation, and the moving platform and the PCB board body form a conveying structure, while the pin insertion device frame and the pick-and-place pin holder form an integrated structure.

[0016] With the above structure, and in conjunction with visual precision positioning of the pin hole during use, high-speed and precise pin picking and placing can be achieved.

[0017] Preferably, the rotary lifting mechanism includes a picking and placing robotic arm assembled with a picking and placing pin holder, and a micro cylinder clamping mechanism is installed on the lower surface of the picking and placing robotic arm. A clamping push head is telescopically connected to the outer surface of the micro cylinder clamping mechanism. Meanwhile, picking and placing suction nozzles and positioning suction nozzles are respectively installed on the upper and lower sides of the picking and placing end of the picking and placing robotic arm. The picking and placing pin holder and the picking and placing robotic arm constitute a rotary lifting structure, and the picking and placing robotic arm forms a telescopic structure with the clamping push head through the micro cylinder clamping mechanism. The clamping push head forms a compression positioning structure with the pin body through the positioning suction nozzle.

[0018] With the above structure, during use, the direct drive rotation mechanism, together with the eccentric wheel linkage up and down mechanism, plus the front-end picking and placing robotic arm, enables the picking and placing robotic arm to rotate 90° and pick up and place the pins. The front end of the picking and placing robotic arm is equipped with a positive and negative pressure controlled picking and placing nozzle and a micro cylinder clamping mechanism to achieve rapid picking and placing of the pin body.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This high-speed and precise pin insertion device on the PCB board is equipped with a vibratory feeder mode for automatic pin insertion, and then a DDR motor turntable multi-station mode to connect with the direct vibration port for rapid material distribution. Then, the pusher structure, together with the robotic arm suction nozzle, realizes the rapid pin insertion process. It also adopts a material box mode to automatically connect with the moving platform to the upper and lower PCB board body, and uses vision to accurately position the pin holes to achieve high-speed and precise picking and placing of the pin body.

[0021] 2. This high-speed, precision pin insertion device on a PCB board is equipped with a material distribution and feeding mechanism. This facilitates the effective transfer of the pin body via a turntable distributor mounted on the side of the vibrator track. Furthermore, the cooperation between the material distribution station and the tension spring causes the extrusion block to engage with the rollers on the extrusion piece, controlling the position of the material distribution station. The pin body is then clamped and fed using a fixture. Additionally, the extrusion piece is equipped with a liftable platform, facilitating effective feeding of the pin body on the vibrator track. The equal-angle feeding device enhances feeding stability.

[0022] 3. This high-speed, high-precision pin insertion device on the PCB board is equipped with a rotating lifting mechanism, which can work in conjunction with the operation of pick-and-place vision device one and pick-and-place vision device two to control the pick-and-place robotic arm on the pin insertion holder to position the positioning nozzle with the upper side of the pin body, making it easier to control the pick-and-place nozzle to pick up the pin body, and to work with the push pin on the push seat to improve the upward picking effect; furthermore, the micro cylinder clamping mechanism on the pick-and-place robotic arm, in conjunction with the pick-and-place nozzle, improves the stability of the pin body loading. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the pin insertion device frame of this utility model;

[0024] Figure 2 This is a three-dimensional structural diagram of the material distribution station of this utility model;

[0025] Figure 3 This is a three-dimensional structural diagram of the pick-and-place vision device of this utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of the rotary feeder of this utility model;

[0027] Figure 5 This is a three-dimensional structural diagram of the mobile platform of this utility model;

[0028] Figure 6 This is a three-dimensional structural diagram of the robotic arm for picking and placing objects according to this utility model.

[0029] In the diagram: 1. Pin insertion device frame; 2. Circular vibratory plate; 3. Straight vibrator track; 4. Pin insertion body; 5. Turntable distributor; 6. Distributor station; 7. Tension spring; 8. Clamp; 9. Extrusion block; 10. Roller; 11. Drop gate opener; 12. Extruded part; 13. Rotating part; 14. Connecting rod; 15. Pusher seat; 16. Push pin; 17. Pick-up and placement vision device one; 18. Pick-up and placement vision device two; 19. Moving platform; 20. PCB board body; 21. Pick-up and placement pin holder; 22. Pick-up and placement robotic arm; 23. Miniature cylinder clamping mechanism; 24. Clamping push head; 25. Positioning suction nozzle; 26. Pick-up and placement suction nozzle. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figures 1-6 The present invention provides the following technical solution: a high-speed and precise pin insertion device on a PCB board, wherein a pin insertion device frame 1 is provided for easy positioning and assembly.

[0032] Example 1: As Figure 1 , Figure 2 and Figure 4 The technical solution shown is provided by this utility model as follows: A high-speed and precise pin insertion device on a PCB board, comprising: a circular vibratory plate 2, installed on the left and right sides of a pin insertion device frame 1, with a straight vibrator track 3 installed on the outer surface of the circular vibratory plate 2, and a pin body 4 conveyed on the upper surface of the straight vibrator track 3; a turntable distributor 5 is provided on the side of the straight vibrator track 3, and the turntable distributor 5 is provided with a material feeding mechanism; the circular vibratory plate 2 and the straight vibrator track 3 are located at the middle section of the inner surface of the pin insertion device frame 1, and the straight vibrator track 3 and the pin body 4 form a conveying structure, and the pin body 4 and the turntable... The feeder 5 constitutes a docking and feeding mechanism; the feeding mechanism includes a feeding station 6 slidably connected to the upper surface of the rotary feeder 5, and a tension spring 7 elastically connects the feeding station 6 and the rotary feeder 5, and a clamp 8 is nested and connected to the inner surface of the feeding station 6, while an extrusion block 9 is installed on the lower surface of the feeding station 6; the rotary feeder 5 and the feeding station 6 form an elastic sliding structure through the tension spring 7, and the feeding station 6 is set at an equal angle to the middle section of the inner surface of the rotary feeder 5, and the feeding station 6 forms an elastic engaging structure with the pin body 4 through the clamp 8, while the feeding station 6 and the extrusion block 9 form an integrated structure.

[0033] In use, the circular vibrating plate 2 assembled on the pin insertion device frame 1 can uniformly and stably feed the pin body 4 and transport it to the straight vibrator track 3. The track body is used to linearly transport the pin body 4. With the rotation of the turntable distributor 5, the distribution station 6 is controlled to dock with the discharge point of the straight vibrator track 3. With the cooperation of the extrusion block 9 and tension spring 7 installed on the distribution station 6, the clamp 8 nested in the control of the movement of the distribution station 6 clamps the pin body 4 and performs elastic reset, thereby improving the stability of the distribution station 6 on the turntable distributor 5.

[0034] Example 2: Figure 1 , Figure 2 and Figure 4 The technical solution shown, based on Embodiment 1, further discloses the movement and adjustment of the material distribution station 6 and the material discharge operation of the pin body 4. The specific details are as follows: A discharge gate 11 is installed on the front side of the rotary distributor 5, and an extrusion member 12 is telescopically connected to the upper surface of the discharge gate 11. A roller 10 is rotatably connected to the outer surface of the extrusion member 12, and the roller 10 is attached to the outer surface of the extrusion block 9. The rotary distributor 5 forms a lifting structure with the discharge gate 11 and the extrusion member 12, and the extrusion member 12... Roller 10 and extrusion block 9 form an extrusion structure; a rotating part 13 is rotatably mounted on the rear support of the turntable distributor 5, and a connecting rod 14 is rotatably connected to the outer surface of the rotating part 13, and a pusher seat 15 is rotatably connected to the upper surface of the connecting rod 14, which limits the sliding of the pusher seat 15 on the rear support of the turntable distributor 5. At the same time, a push pin 16 is installed on the inner surface of the pusher seat 15; the turntable distributor 5 forms a circumferential linear movement structure with the pusher seat 15 through the rotating part 13 and the connecting rod 14, and the pusher seat 15 and the push pin 16 form an integrated structure.

[0035] When the rotary feeder 5 is working, it will rotate at a fixed angle, and the feeding station 6 will be moved to the discharge point of the vibrator track 3. The extrusion component 12 on the discharge gate 11 will be moved upwards, and the roller 10 assembled with the extrusion component 12 will be moved to contact the extrusion block 9 installed at the feeding station 6. The feeding station 6 will slide on the rotary feeder 5, thereby controlling the tension spring 7 between the rotary feeder 5 and the feeding station 6 to unfold. This facilitates the clamp 8 assembled at the feeding station 6 to clamp and convey the feeding pin body 4, and to feed the material. When station 6 is elastically reset and moves to push seat 15, the pick-and-place vision device 17 is controlled to identify the position, and the rotating component 13 is controlled to drive the connecting rod 14 to adjust the push seat 15 to move in a circular linear motion, thereby moving the push pin 16 on the push seat 15 back and forth, and controlling the push pin 16 to lift the insert pin body 4, moving the insert pin body 4 into the positioning suction nozzle 25 assembled by the pick-and-place robotic arm 22, so that the positioning suction nozzle 25 can pick up materials, and work in conjunction with the pick-and-place vision device 17 to prevent the positioning suction nozzle 25 from shifting.

[0036] Example 3: Figure 1 , Figure 3 , Figure 5 and Figure 6 The technical solution shown, based on Embodiment 2, further discloses the working method of the pick-and-place robotic arm 22, the specific content of which is as follows: Pick-and-place vision device 17 is installed inside the pin insertion device rack 1, and pick-and-place vision device 18 is installed inside the pin insertion device rack 1. A moving platform 19 is installed inside the pin insertion device rack 1, and a PCB board body 20 is conveyed on the upper surface of the moving platform 19. A pick-and-place pin holder 21 is installed inside the pin insertion device rack 1, and the pick-and-place pin holder 21 is equipped with a rotation and lifting mechanism. Pick-and-place vision device 17 and pick-and-place vision device 18 are symmetrically arranged about the middle of the inner surface of the pin insertion device rack 1, and the pin insertion device rack 1 and the moving platform 19 form an embedded installation configuration. The moving platform 19 and the PCB board body 20 are also connected. The plate body 20 forms a conveying structure, while the pin insertion device frame 1 and the pin insertion seat 21 form an integrated structure; the rotary lifting mechanism includes a picking and placing robotic arm 22 assembled from the pin insertion seat 21, and a micro cylinder clamping mechanism 23 is installed on the lower surface of the picking and placing robotic arm 22, and a clamping push head 24 is telescopically connected to the outer surface of the micro cylinder clamping mechanism 23. At the same time, picking and placing suction nozzles 26 and positioning suction nozzles 25 are respectively installed on the upper and lower sides of the picking and placing end of the picking and placing robotic arm 22; the pin insertion seat 21 and the picking and placing robotic arm 22 form a rotary lifting structure, and the picking and placing robotic arm 22 forms a telescopic structure with the clamping push head 24 through the micro cylinder clamping mechanism 23, and the clamping push head 24 forms a compression positioning structure with the pin body 4 through the positioning suction nozzle 25.

[0037] When the pick-and-place robotic arm 22 needs to pick up the pin body 4, it will work with the pick-and-place vision device 17 to control the pick-and-place pin holder 21 to adjust the position of the pick-and-place robotic arm 22. Through the positioning of the positioning nozzle 25, the lifting of the push pin 16 and the operation of the pick-and-place nozzle 26, the lifted pin body 4 is picked up for use. In addition, the clamping push head 24 adjusted by the micro cylinder clamping mechanism 23 on the pick-and-place robotic arm 22 is extended to limit the pin body 4. Through the rotation and lifting of the pick-and-place robotic arm 22 by the pick-and-place pin holder 21 and the cooperation of the pick-and-place vision device 18, the picked-up pin body 4 is moved to the PCB board body 20 conveyed by the moving platform 19, so as to perform high-speed and precise pin insertion of the pin body 4.

[0038] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-speed and precise pin insertion device on a PCB board, wherein a pin insertion device rack (1) is provided for easy positioning and assembly; Its features are, include: A circular vibrating plate (2) is installed on the left and right sides of the pin insertion device frame (1), and a straight vibrator track (3) is installed on the outer surface of the circular vibrating plate (2), and a pin body (4) is conveyed on the upper surface of the straight vibrator track (3). At the same time, a turntable distributor (5) is provided on the side of the straight vibrator track (3), and the turntable distributor (5) is provided with a material feeding mechanism. A pick-and-place vision device (17) is installed inside the pin insertion device rack (1), and a pick-and-place vision device (18) is installed inside the pin insertion device rack (1). A moving platform (19) is installed inside the pin insertion device rack (1), and a PCB board body (20) is transported on the upper surface of the moving platform (19). A pick-and-place pin holder (21) is installed inside the pin insertion device rack (1), and the pick-and-place pin holder (21) is equipped with a rotation and lifting mechanism.

2. The high-speed, precise pin insertion device on a PCB board according to claim 1, characterized in that: The circular vibrating plate (2) and the straight vibrator track (3) are located at the middle section of the inner surface of the pin insertion device frame (1), and the straight vibrator track (3) and the pin body (4) form a conveying structure, and the pin body (4) and the turntable feeder (5) form a docking feeding mechanism.

3. The high-speed, precise pin insertion device on a PCB board according to claim 1, characterized in that: The material feeding mechanism includes a material feeding station (6) that is slidably connected to the upper surface of the rotary feeder (5), and a tension spring (7) is elastically connected between the material feeding station (6) and the rotary feeder (5). A clamp (8) is nested on the inner surface of the material feeding station (6), and an extrusion block (9) is installed on the lower surface of the material feeding station (6). The rotary feeder (5) and the material feeding station (6) form an elastic sliding structure through the tension spring (7), and the material feeding station (6) is set at an equal angle about the middle section of the inner surface of the rotary feeder (5). The material feeding station (6) and the pin body (4) form an elastic locking structure through the clamp (8), and the material feeding station (6) and the extrusion block (9) form an integrated structure.

4. The high-speed, precise pin insertion device on a PCB board according to claim 3, characterized in that: The front side of the rotary feeder (5) is equipped with a discharge gate opener (11), and the upper surface of the discharge gate opener (11) is telescopically connected with an extrusion member (12), and the outer surface of the extrusion member (12) is rotatably connected with a roller (10), and the roller (10) is attached to the outer surface of the extrusion block (9); the rotary feeder (5) forms a lifting structure with the discharge gate opener (11) and the extrusion member (12), and the extrusion member (12) forms an extrusion structure with the extrusion block (9) through the roller (10).

5. The high-speed, precise pin insertion device on a PCB board according to claim 3, characterized in that: The rotary feeder (5) has a rotating component (13) on its rear support, and a connecting rod (14) is rotatably connected to the outer surface of the rotating component (13). A pusher seat (15) is rotatably connected to the upper surface of the connecting rod (14), and the pusher seat (15) is limited and slidably on the rear support of the rotary feeder (5). At the same time, a push pin (16) is installed on the inner surface of the pusher seat (15). The rotary feeder (5) forms a circumferential linear movement structure with the pusher seat (15) through the rotating component (13) and the connecting rod (14), and the pusher seat (15) and the push pin (16) form an integrated structure.

6. The high-speed, precise pin insertion device on a PCB board according to claim 1, characterized in that: The pick-and-place vision device 1 (17) and the pick-and-place vision device 2 (18) are symmetrically arranged about the middle of the inner surface of the pin insertion device frame (1), and the pin insertion device frame (1) and the moving platform (19) form an embedded installation, and the moving platform (19) and the PCB board body (20) form a conveying structure. At the same time, the pin insertion device frame (1) and the pick-and-place pin holder (21) form an integrated structure.

7. The high-speed, precise pin insertion device on a PCB board according to claim 1, characterized in that: The rotary lifting mechanism includes a pick-and-place robotic arm (22) assembled from a pick-and-place pin holder (21), and a micro cylinder clamping mechanism (23) is installed on the lower surface of the pick-and-place robotic arm (22). A clamping push head (24) is telescopically connected to the outer surface of the micro cylinder clamping mechanism (23). Meanwhile, a pick-and-place suction nozzle (26) and a positioning suction nozzle (25) are respectively installed on the upper and lower sides of the pick-and-place end of the pick-and-place robotic arm (22). The pick-and-place pin holder (21) and the pick-and-place robotic arm (22) constitute a rotary lifting structure. The pick-and-place robotic arm (22) and the clamping push head (24) constitute a telescopic structure through the micro cylinder clamping mechanism (23). The clamping push head (24) and the pin body (4) constitute a compression positioning structure through the positioning suction nozzle (25).

Images