Automatic grabbing device for PCB production line

Abstract

The utility model discloses an automatic gripping device for a PCB (printed circuit board) production line, which relates to the technical field of PCB production and comprises two symmetrically arranged supporting plates, a conveying belt for conveying PCBs is rotatably arranged between the two supporting plates, placing tables are fixedly arranged on the surfaces, far away from each other, of the two supporting plates, side plates are fixedly arranged at the tops of the supporting plates, and the side plates are fixedly arranged on the supporting plates. The side plates are of a U-shaped structure, a case is fixedly connected between the tops of the two side plates, an electric push rod is rotationally arranged in the middle of the bottom of the case, the telescopic end of the electric push rod is fixedly connected with a connecting rod, lengthening rods are fixedly arranged at the two ends of the bottom of the connecting rod, and clamping assemblies are arranged at the bottoms of the lengthening rods. Due to the fact that two PCBs can be grabbed every time, the grabbing efficiency of the device is improved, and the problems that an existing automatic grabbing device for the PCB production line can only grab one PCB every time, the grabbing efficiency is low, rapid collection of the PCBs is not facilitated, and the production efficiency of the PCBs is reduced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board production, in particular to an automatic grabbing device for a PCB board production line. Background Art

[0002] The Chinese name of PCB is printed circuit board, also known as printed wiring board. It is an important electronic component, a support for electronic components, and a carrier for electrical connection of electronic components. Since it is made by electronic printing technology, it is called a "printed" circuit board. When producing a PCB board, it is often necessary to convey the PCB board to the required position, and then collect the processed PCB board for subsequent operations.

[0003] For example, the prior patent with the publication number CN213770432U, titled "A Safety Automatic Grabbing Device for a PCB Board Production Line", proposes that when a PCB board is conveyed on a conveyor belt, an air claw can drive two gripping plates to move and grab the PCB. Then, an electric telescopic rod lifts the PCB board, and a motor is started to drive a lead screw to rotate, enabling a moving table to move along the lead screw and move the PCB board to the required placement table, so that the PCB board can be automatically moved, facilitating the processing of the PCB board on the placement table. This setting not only improves the production efficiency but also reduces the labor intensity of workers.

[0004] However, the above-mentioned patent can only grab one PCB board at a time, resulting in low grabbing efficiency, which is not conducive to the rapid collection of PCB boards and reduces the production efficiency of PCB boards. Therefore, it is necessary to propose an automatic grabbing device for a PCB board production line to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an automatic grabbing device for a PCB board production line to solve the problem that the existing automatic grabbing device for a PCB board production line can only grab one PCB board at a time, resulting in low grabbing efficiency, which is not conducive to the rapid collection of PCB boards and reduces the production efficiency of PCB boards.

[0006] To achieve the above purpose, the utility model provides the following technical solution: An automatic grabbing device for a PCB board production line includes two symmetrically arranged support plates. A conveyor belt for transporting PCB boards is rotatably arranged between the two support plates. Placement tables are fixedly arranged on the outer sides of the two support plates. A side plate is fixedly arranged on the top of the support plate. The side plate has a "C" - shaped structure. A chassis is fixedly connected between the tops of the two side plates. An electric push rod is rotatably arranged in the middle of the bottom of the chassis. The telescopic end of the electric push rod is fixedly connected with a connecting rod. The two ends of the bottom of the connecting rod are fixedly provided with extension rods. A clamping assembly is arranged at the bottom of the extension rod.

[0007] The interior of the chassis is provided with a power component for driving the electric push rod to rotate.

[0008] Preferably, the clamping component includes a clamping box fixedly arranged at the bottom of the extension rod. A sliding groove is fixedly arranged inside the clamping box. A bidirectional lead screw is rotatably arranged inside the sliding groove. Two movable blocks symmetrically distributed about the center line of the bidirectional lead screw are rotatably arranged on the outer ring of the bidirectional lead screw. A clamping plate is fixedly arranged at the bottom of the movable block. A motor is fixedly arranged at the end of the clamping box. One end of the rotating shaft of the motor extending into the sliding groove is fixedly connected with the bidirectional lead screw.

[0009] Preferably, protective pads are fixedly arranged on the surfaces of the two clamping plates close to each other.

[0010] Preferably, the distance between the two motors is less than the distance between the two support feet on the side plate.

[0011] Preferably, the power component includes a gear rotatably arranged inside the chassis. One end of the electric push rod extending into the chassis is fixedly connected with the gear. A rack is meshed with the side of the gear. The rack is movably attached to the chassis. A support seat is fixedly arranged inside the chassis. A cylinder is fixedly arranged in the middle of the support seat. The telescopic end of the cylinder is fixedly connected with the rack.

[0012] Preferably, in the initial state, the clamping component is located above the conveyor belt. When the gear rotates 90 degrees, the clamping component is located above the placement table.

[0013] The technical effects and advantages of the present utility model:

[0014] 1. Since the present utility model can grab two PCB boards each time, the grabbing efficiency of the device is improved, solving the problem that the existing automatic grabbing device for the PCB board production line can only grab one PCB board each time, resulting in low grabbing efficiency, being unfavorable for the rapid collection of PCB boards, and reducing the production efficiency of PCB boards;

[0015] 2. Through the installation of the clamping component, it is convenient to quickly hijack and release the PCB board. In addition, through the installation of the protective pad, the protective pad has a certain elasticity, enabling the clamping plate to stably clamp the PCB board and avoiding mechanical damage to the PCB board caused by the two clamping plates;

[0016] 3. Through the installation of the power component, it is convenient to push the two clamping components to rotate 90 degrees each time, quickly switching the position of the clamping component between the conveyor belt and the placement table, and the operation is simple and fast. Description of the Drawings

[0017] Figure 1This is a three-dimensional structural schematic diagram of an automatic grasping device for a PCB board production line of the present utility model.

[0018] Figure 2 This is a structural schematic diagram of the electric push rod of the present utility model after rotating 90 degrees.

[0019] Figure 3 This is a structural schematic diagram of the interior of the chassis of the present utility model.

[0020] Figure 4 This is a cross-sectional structural schematic diagram of the clamping assembly of the present utility model.

[0021] In the figure: 1, support plate; 2, conveyor belt; 3, placement table; 4, side plate; 5, chassis; 6, support seat; 7, cylinder; 8, rack; 9, gear; 10, electric push rod; 11, connecting rod; 12, extension rod; 13, clamping box; 14, motor; 15, bidirectional lead screw; 16, movable block; 17, clamping plate; 18, protection pad. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] The present utility model provides an automatic grasping device for a PCB board production line as shown in Figures 1 - 4 which includes two symmetrically arranged support plates 1. A conveyor belt 2 for transporting PCB boards is rotatably arranged between the two support plates 1. Placement tables 3 are fixedly arranged on the mutually remote sides of the two support plates 1. A side plate 4 is fixedly arranged on the top of the support plate 1. The side plate 4 has a "C"-shaped structure. A chassis 5 is fixedly connected between the tops of the two side plates 4. An electric push rod 10 is rotatably arranged in the middle of the bottom of the chassis 5. The telescopic end of the electric push rod 10 is fixedly connected with a connecting rod 11. Extension rods 12 are fixedly arranged at both ends of the bottom of the connecting rod 11. A clamping assembly is arranged at the bottom of the extension rod 12. A power assembly for driving the electric push rod 10 to rotate is arranged inside the chassis 5.

[0024] When using this grasping device, multiple PCB boards are evenly placed on the conveyor belt 2 for transportation. Since in the initial state, the clamping assembly is located above the conveyor belt 2, after two PCB boards are located below the two clamping assemblies, the transportation of the conveyor belt 2 is stopped, and the electric push rod 10 is started to drive the connecting rod 11, the extension rod 12 and the clamping assembly to move downward, so that the clamping assembly clamps the PCB board. Then, the electric push rod 10 is started in the reverse direction to drive the connecting rod 11, the extension rod 12, the clamping assembly and the PCB board to move upward. The power assembly is operated to drive the electric push rod 10 to rotate by 90 degrees, and then drive the connecting rod 11, the extension rod 12, the clamping assembly and the PCB board to rotate by 90 degrees. At this time, the clamping assembly is located above the placement table 3. Then, after the electric push rod 10 is started, it drives the PCB board to move downward, and the clamping assembly releases the PCB board, completing the grasping of the PCB board. The operator then collects and processes the PCB board located on the placement table 3, which is convenient for subsequent operations on it.

[0025] Since this utility model can grasp two PCB boards each time, it improves the grasping efficiency of the device, solves the problem that the existing automatic grasping device for PCB board production lines can only grasp one PCB board each time, resulting in low grasping efficiency, being not conducive to the rapid collection of PCB boards, and reducing the production efficiency of PCB boards.

[0026] Furthermore, the clamping assembly includes a clamping box 13. The clamping box 13 is fixedly arranged at the bottom of the extension rod 12. A chute is fixedly arranged inside the clamping box 13. A bidirectional lead screw 15 is rotatably arranged inside the chute. Two movable blocks 16 symmetrically distributed about the center line of the bidirectional lead screw 15 are rotatably arranged on the outer ring of the bidirectional lead screw 15. A clamping plate 17 is fixedly arranged at the bottom of the movable block 16. A motor 14 is fixedly arranged at the end of the clamping box 13. One end of the rotating shaft of the motor 14 that extends into the chute is fixedly connected to the bidirectional lead screw 15.

[0027] After the two clamping plates 17 are respectively located on both sides of the PCB board, the motor 14 is started to drive the bidirectional lead screw 15 to rotate, and then drive the two movable blocks 16 to move relatively, so that the two clamping plates 17 clamp the PCB board.

[0028] In addition, protective pads 18 are fixedly arranged on the mutually approaching surfaces of the two clamping plates 17. Through the installation of the protective pads 18, the protective pads 18 have a certain elasticity, which can enable the clamping plates 17 to stably clamp the PCB board and prevent the two clamping plates 17 from causing mechanical damage to the PCB board.

[0029] Further, the power assembly includes a gear 9 rotatably arranged inside the chassis 5. One end of the electric push rod 10 that movably extends into the chassis 5 is fixedly connected to the gear 9. A rack 8 is meshed and connected to the side of the gear 9. The rack 8 is movably attached to the chassis 5. A support base 6 is fixedly arranged inside the chassis 5. A cylinder 7 is fixedly arranged in the middle of the support base 6. The telescopic end of the cylinder 7 is fixedly connected to the rack 8. After the clamping assembly grabs the PCB board and moves upward, the cylinder 7 is started to push the rack 8 to move a specified distance, thereby driving the gear 9 to rotate by 90 degrees, causing the electric push rod 10 to rotate by 90 degrees synchronously, and driving the clamping assembly to rotate and move to the placement table 3, facilitating the placement of the PCB board on the placement table 3 for waiting to be processed.

[0030] Further, the distance between the two motors 14 is less than the distance between the two support feet on the side plate 4. This setting avoids the problem that the motors 14 collide with the support feet of the side plate 4 after the connecting rod 11 rotates by 90 degrees.

[0031] Working principle: When using this grasping device, a plurality of PCB boards are evenly placed on the conveyor belt 2 for conveying. After two PCB boards are located below the two clamping assemblies, the conveying of the conveyor belt 2 is stopped, and the electric push rod 10 is started to drive the connecting rod 11, the extension rod 12, and the clamping assembly to move downward. After the two clamping plates 17 are respectively located on both sides of the PCB board, the motor 14 is started to drive the bidirectional lead screw 15 to rotate, thereby driving the two movable blocks 16 to move relatively, so that the two clamping plates 17 clamp the PCB board. The electric push rod 10 is started in the reverse direction to drive the connecting rod 11, the extension rod 12, the clamping assembly, and the PCB board to move upward. The cylinder 7 is started to push the rack 8 to move a specified distance, thereby driving the gear 9 to rotate by 90 degrees, causing the electric push rod 10 to rotate by 90 degrees synchronously, and driving the clamping assembly to rotate and move above the placement table 3. The electric push rod 10 is started to drive the clamping assembly and the PCB board to move downward. At this time, the clamping assembly releases the PCB board, and the PCB board can be placed on the placement table 3. The reverse operation is performed to reset the clamping assembly to wait for the next grasping operation.

Claims

1. An automatic grasping device for a PCB board production line, comprising two symmetrically arranged support plates (1), characterized in that: A conveyor belt (2) for transporting PCB boards is rotatably arranged between the two support plates (1). Placing tables (3) are fixedly arranged on the mutually remote sides of the two support plates (1). A side plate (4) is fixedly arranged on the top of the support plate (1). The side plate (4) has a "C"-shaped structure. A chassis (5) is fixedly connected between the tops of the two side plates (4). An electric push rod (10) is rotatably arranged in the middle of the bottom of the chassis (5). The telescopic end of the electric push rod (10) is fixedly connected with a connecting rod (11). At both ends of the bottom of the connecting rod (11), extension rods (12) are fixedly arranged. A clamping assembly is arranged at the bottom of the extension rod (12). A power assembly for driving the electric push rod (10) to rotate is arranged inside the chassis (5).

2. The automatic grasping device for a PCB board production line according to claim 1, characterized in that: The clamping assembly includes a clamping box (13). The clamping box (13) is fixedly arranged at the bottom of the extension rod (12). A sliding groove is fixedly arranged inside the clamping box (13). A bidirectional lead screw (15) is rotatably arranged inside the sliding groove. Two movable blocks (16) symmetrically distributed about the central line of the bidirectional lead screw (15) are rotatably arranged on the outer ring of the bidirectional lead screw (15). A clamping plate (17) is fixedly arranged at the bottom of the movable block (16). A motor (14) is fixedly arranged at the end of the clamping box (13). One end of the rotating shaft of the motor (14) that movably extends into the inside of the sliding groove is fixedly connected with the bidirectional lead screw (15).

3. The automatic grasping device for a PCB board production line according to claim 2, characterized in that: Protective pads (18) are fixedly arranged on the mutually approaching surfaces of the two clamping plates (17).

4. The automatic grasping device for a PCB board production line according to claim 3, characterized in that: The distance between the two motors (14) is less than the distance between the two support feet on the side plate (4).

5. The automatic grasping device for a PCB board production line according to claim 1, wherein: The power assembly includes a gear (9) rotatably arranged inside the chassis (5). One end of the electric push rod (10) that movably extends into the inside of the chassis (5) is fixedly connected with the gear (9). A rack (8) is meshed and connected to the side of the gear (9). The rack (8) is movably attached to the chassis (5). A support seat (6) is fixedly arranged inside the chassis (5). A cylinder (7) is fixedly arranged in the middle of the support seat (6). The telescopic end of the cylinder (7) is fixedly connected with the rack (8).

6. The automatic grasping device for a PCB board production line according to claim 5, characterized in that: In the initial state, the clamping assembly is located above the conveyor belt (2). When the gear (9) rotates by ninety degrees, the clamping assembly is located above the placing table (3).

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