Pin shearing device for printed circuit board processing

Abstract

The utility model discloses a pin shearing device for printed circuit board processing, and particularly relates to the field of printed circuit board processing, which comprises a conveying belt, a plurality of clamping mechanisms are arranged on the surface of the conveying belt, a support frame is arranged in the middle of the conveying belt, and a collecting box is arranged at the bottom of the support frame. A hydraulic push rod is fixedly connected to the top of the supporting frame, and a lifting plate is arranged in the middle of the supporting frame. According to the utility model, a circuit board is firstly placed at the top of the fixing block, and the limiting plates can be pushed by the first springs, so that the two clamping plates push and extrude the two sides of the circuit board, the circuit board can be clamped and fixed, and the placement stability of the circuit board is improved; and the circuit board can be automatically moved to the position under the cutting and connecting mechanism through the conveying belt, the pins of the circuit board are automatically cut, the cut pins are pushed and cleaned, the cut pins are collected through the collecting box, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printed circuit board processing, and more specifically, to a pin shearing device for printed circuit board processing. Background Art

[0002] Printed circuit boards, also known as printed circuit boards, are providers of electrical connections for electronic components. When printed circuit boards are processed, pins need to be added to the circuit boards. Circuit board pins are the connections between the internal circuits of integrated circuits (chips) and peripheral circuits. There are many circuit pins on the surface of the circuit board. During the production process, the excess circuit pins on the surface of the circuit board need to be cut off.

[0003] At present, it is generally cut manually by hand, which not only wastes human resources, but also the cutting size is not uniform. At the same time, manual cutting can only be done one by one, which is inefficient.

[0004] The utility model of Chinese patent application number CN202322071031.3 discloses a printed circuit board pin shearing device. In the utility model, the circuit board is placed on the workbench, and then the drive motor is started, the drive motor drives the two rotating wheels to rotate, and the transmission belt runs at the same time. The transmission belt drives the two fixed blocks to move in the opposite direction through the connecting block, and the fixed block drives the shearing knife and the rubber pressing plate to move to the edge of the circuit board, and then the hydraulic telescopic rod is controlled to extend, the hydraulic telescopic rod drives the mounting plate to move down, the mounting plate drives the shearing knife, and then the shearing knife continues to move down and shears the circuit board pins, which improves the shearing efficiency of the printed circuit board pins;

[0005] Then, combined with the drawings in the specification, it can be seen that the loading and unloading of the circuit board is manually placed at the cutting position, which poses a safety hazard and is inconvenient to automatically complete the loading and unloading of the circuit board and automatically cut the pins, affecting work efficiency. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a pin shearing device for processing a printed circuit board to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pin shearing device for printed circuit board processing, comprising a conveyor belt, a plurality of clamping mechanisms are arranged on the surface of the conveyor belt, a support frame is arranged in the middle of the conveyor belt, a collection box is arranged at the bottom of the support frame, a hydraulic push rod is fixedly connected to the top of the support frame, a lifting plate is arranged in the middle of the support frame, and a first stabilizing bar is symmetrically fixedly connected to the top of the lifting plate;

[0008] The inner cavity of the support frame has two sides symmetrically fixedly connected with shearing tables, and the bottom of the lifting plate is provided with a cutting connection mechanism.

[0009] Preferably, the supporting side plates on both sides of the supporting frame are located at the front and rear sides of the conveyor belt, the collecting box passes through the supporting side plates of the supporting frame, and the shearing table is located on the top of the conveyor belt.

[0010] Preferably, the lifting plate is arranged on the top of the shearing table, the first stabilizing rod passes through the top wall of the support frame and is fixedly connected to the limiting plate, and the moving end of the hydraulic push rod is fixedly connected to the top wall of the lifting plate.

[0011] Preferably, the clamping mechanism comprises two fixed blocks, and clamping plates are symmetrically arranged on opposite sides of the two fixed blocks. The fixed blocks are fixed to the surface of the conveyor belt, and protective clamping pads are arranged on the tops of opposite sides of the two clamping plates.

[0012] Preferably, a connecting rod is fixedly connected to one side of the clamping plate close to the fixed block, one end of the connecting rod extends into the interior of the fixed block and is fixedly connected to the limiting plate, and a first spring is sleeved on one end of the connecting rod close to the limiting plate.

[0013] Preferably, the cutting connection mechanism includes a first movable plate arranged on both sides of the bottom of the lifting plate, a threaded rod is inserted in the middle of the first movable plate, second stabilizing rods are symmetrically inserted at both ends of the first movable plate, one end of the threaded rod is connected to a motor, and both ends of the second stabilizing rod and the threaded rod are provided with connecting seats, which are fixed to the bottom of the lifting plate.

[0014] Preferably, a plurality of mounting screws are symmetrically fixedly connected to opposite sides of the two first movable plates, and cutting blades are symmetrically arranged on opposite sides of the two first movable plates, and the mounting screws penetrate the cutting blades and are sleeved with nuts.

[0015] Preferably, a second movable plate is symmetrically arranged on one side opposite to the two first movable plates, a plurality of limiting slide grooves are symmetrically opened on one side opposite to the two first movable plates, a third stabilizing rod is fixedly connected to the middle of the limiting slide groove, a second spring and a limiting slider are sleeved on the middle of the third stabilizing rod, the limiting slider is fixed on one side of the second movable plate and is located at the bottom of the second spring, and a cleaning pad is arranged at the bottom of the second movable plate.

[0016] Technical effects and advantages of the utility model:

[0017] 1. The utility model first places the circuit board on the top of the fixed block, and the first spring can push the limit plate, so that the two clamping plates push and squeeze the two sides of the circuit board, so as to clamp and fix the circuit board, improve the placement stability of the circuit board, and automatically move the circuit board to the bottom of the cutting connection mechanism through the conveyor belt, automatically cut the pins of the circuit board, and push and clean the cut pins, and collect them through the collection box, so as to improve the work efficiency;

[0018] 2. The utility model also clamps the circuit board through the clamping mechanism, and moves the clamping mechanism through the conveyor belt, so that the circuit board can be automatically loaded and unloaded, which is convenient for continuous cutting and processing, and improves work efficiency. The hydraulic push rod is started to control the lifting plate to drive the first moving plate to move the cutting blade up and down, which is convenient for pin cutting. The positions of the two cutting blades can be adjusted by starting the motor, and the pin cutting length can be conveniently adjusted. The second spring pushes the limit slider, and the cleaning pad can squeeze the circuit board to improve the cutting effect.

[0019] In summary, through the mutual influence of the above-mentioned multiple effects, the loading and unloading of the circuit board can be completed automatically, and the cutting, cleaning and collection of the pins can be automatically performed, thereby improving work efficiency, facilitating the adjustment of the pin cutting length, and improving the cutting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a schematic diagram of the connection structure of the support frame and the cutting connection mechanism of the utility model.

[0022] Figure 3 It is a side structural schematic diagram of the support frame and the cutting connection mechanism of the utility model.

[0023] Figure 4 It is a schematic diagram of the cross-sectional connection structure of the clamping mechanism of the utility model.

[0024] Figure 5 It is a schematic diagram of the connection structure of the lifting plate and the cutting blade of the utility model.

[0025] Figure 6 It is a schematic diagram of the split structure of the first movable plate and the second movable plate of the utility model.

[0026] The accompanying drawings are marked as follows: 1. conveyor belt; 2. support frame; 3. collection box; 4. hydraulic push rod; 5. lifting plate; 6. first stabilizing bar; 7. shearing table; 8. fixing block; 9. clamping plate; 10. connecting rod; 11. limit plate; 12. first spring; 13. threaded rod; 14. second stabilizing bar; 15. motor; 16. first movable plate; 17. mounting screw; 18. cutting blade; 19. second movable plate; 20. cleaning pad; 21. limit slide groove; 22. third stabilizing bar; 23. second spring; 24. limit slider. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] As attached Figure 1-6 A pin shearing device for processing a printed circuit board shown in the figure comprises a conveyor belt 1, a plurality of clamping mechanisms are arranged on the surface of the conveyor belt 1, which can conveniently support and limit the printed circuit board, and facilitate the conveying and loading and unloading. A support frame 2 is arranged in the middle of the conveyor belt 1, and a collection box 3 is arranged at the bottom of the support frame 2, through which the sheared pins can be collected, a hydraulic push rod 4 is fixedly connected to the top of the support frame 2, and a lifting plate 5 is arranged in the middle of the support frame 2. The hydraulic push rod 4 is started to control the lifting plate 5 to move up and down, which is convenient for shearing processing. The top of the lifting plate 5 is symmetrically fixedly connected with a first stabilizing rod 6, and the stability of the lifting plate 5 moving up and down is improved by the first stabilizing rod 6;

[0029] The inner cavity of the support frame 2 is symmetrically fixedly connected with a shearing table 7 on both sides. The bottom of the lifting plate 5 is provided with a cutting connection mechanism. The lifting plate 5 can support the moving circuit board. The cutting connection mechanism can be used to shear the pins on both sides of the circuit board to improve the use effect.

[0030] As attached Figure 1 As shown, the supporting side plates on both sides of the supporting frame 2 are located on the front and rear sides of the conveyor belt 1, the collecting box 3 passes through the supporting side plates of the supporting frame 2, and the shearing table 7 is located on the top of the conveyor belt 1. The shearing connection mechanism can be supported by the supporting frame 2, and the pins can be collected by the collecting box 3. The moving circuit board can be supported by the shearing table 7.

[0031] As attached Figure 1 , 2As shown in 3, the lifting plate 5 is arranged on the top of the shearing table 7, the first stabilizing bar 6 passes through the top wall of the support frame 2 and is fixedly connected to the limiting plate, the moving end of the hydraulic push rod 4 is fixedly connected to the top wall of the lifting plate 5, the lifting plate 5 is controlled to move up and down by starting the hydraulic push rod 4, and the stability of the lifting plate 5 moving up and down can be improved by the first stabilizing bar 6.

[0032] As attached Figure 1 , 4 As shown, the clamping mechanism includes two fixed blocks 8, and clamping plates 9 are symmetrically arranged on the opposite sides of the two fixed blocks 8. The fixed blocks 8 are fixed to the surface of the conveyor belt 1, and protective pads are arranged on the tops of the opposite sides of the two clamping plates 9. By starting the conveyor belt 1, the fixed blocks 8 can be controlled to drive the clamping plates 9 to move, and the circuit board can be clamped by the protective pads on one side of the clamping plates 9.

[0033] As attached Figure 1 , 4 As shown, a connecting rod 10 is fixedly connected to one side of the clamping plate 9 close to the fixed block 8, one end of the connecting rod 10 extends to the inside of the fixed block 8 and is fixedly connected to a limiting plate 11, and a first spring 12 is sleeved on one end of the connecting rod 10 close to the limiting plate 11. By pulling the clamping plate 9, the connecting rod 10 drives the limiting plate 11 to squeeze the first spring 12, and the circuit board is placed on the top of the fixed block 8. Through the squeezing of the limiting plate 11 by the first spring 12, the two clamping plates 9 clamp the two sides of the circuit board for limited fixing.

[0034] As attached Figure 1 , 2 As shown in Figures 3 and 5, the cutting connection mechanism includes a first movable plate 16 arranged on both sides of the bottom of the lifting plate 5, a threaded rod 13 is inserted in the middle of the first movable plate 16, and second stabilizing rods 14 are symmetrically inserted at both ends of the first movable plate 16, one end of the threaded rod 13 is connected to a motor 15, and both ends of the second stabilizing rod and the threaded rod 13 are sleeved with connecting seats, which are fixed to the bottom of the lifting plate 5. By starting the motor 15 to control the rotation of the threaded rod 13, the two first movable plates 16 can be moved to the opposite side or to the opposite side, and the stability of the movement of the first movable plate 16 is improved by the second stabilizing rod 14.

[0035] As attached Figure 3 , 5 As shown in Figure 6, a plurality of mounting screws 17 are symmetrically fixedly connected to the opposite sides of the two first movable plates 16, and cutting blades 18 are symmetrically arranged on the opposite sides of the two first movable plates 16. The mounting screws 17 penetrate the cutting blades 18 and are sleeved with nuts. The cutting blades 18 can be conveniently fixed to one side of the first movable plate 16 by the mounting screws 17 and the nuts, so that the cutting blades 18 move with the up and down movement of the first movable plate 16, so as to facilitate the cutting of the pins of the circuit board.

[0036] As attached Figure 3 , 5 As shown in , 6, a second movable plate 19 is symmetrically arranged on the opposite side of the two first movable plates 16, and a plurality of limiting slide grooves 21 are symmetrically opened on the opposite side of the two first movable plates 16, and a third stabilizing rod 22 is fixedly connected to the middle of the limiting slide groove 21, and a second spring 23 and a limiting slider 24 are sleeved on the middle part of the third stabilizing rod 22, and the limiting slider 24 is fixed to one side of the second movable plate 19 and is located at the bottom of the second spring 23. A cleaning pad 20 is arranged at the bottom of the second movable plate 19, and the second movable plate 19 can be driven to move downward by the first movable plate 16, and the cleaning pad 20 can clamp the circuit board at the bottom to improve the cutting effect. At the same time, the second spring 23 pushes the limiting slider 24, so that after the cutting blade 18 is lifted, the cleaning pad 20 can be moved by moving the first movable plate 16 to push the cut pins from the top of the shearing table 7 to the middle of the collection box 3, which is convenient for cleaning and collection.

[0037] It is worth noting that the clamping plate 9 and the fixing block 8 coincide with the central axis of the collection box 3. When the circuit board is placed, the central axis of the circuit board coincides with the central axis of the fixing block 8. The circuit board can be automatically and accurately placed on the top of the fixing block 8 by a robotic arm or a suction cup. This is a prior art and will not be elaborated on in detail.

[0038] Working principle of the utility model: when in use, place the circuit board at the clamping mechanism position on the top of the conveyor belt 1, place the circuit board on the top of the fixed block 8 to push the clamping plate 9, and the circuit board can be clamped and limited by the clamping plate 9, and the circuit board is located in the middle position of the top of the fixed block 8;

[0039] When the circuit board moves to the top of the shearing table 7 along with the conveyor belt 1, the hydraulic push rod 4 can be started to control the lifting plate 5 to drive the first moving plate 16 to move the cutting blade 18 downward to cut and separate the pins of the circuit board located on the top of the shearing table 7;

[0040] Then, the hydraulic push rod 4 is started to control the lifting plate 5 to move upward to a fixed position, so that the cleaning pad 20 is fitted with the mounting screw 17, and the cutting blade 18 is separated from the mounting screw 17. Then, the motor 15 is started to control the two first moving plates 16 to move to the opposite side, and the waste on the top of the shearing table 7 is pushed down by the cleaning pad 20 and falls into the middle of the collection box 3, which is convenient for cleaning and collection.

[0041] When the width of the circuit board changes, the motor 15 can be started to control the first moving plate 16 to drive the cutting blade 18 to move, and the distance between the two cutting blades 18 can be adjusted to facilitate cutting of the pins;

[0042] When the circuit board after pin cutting moves to the other end of the conveyor belt 1, one of the fixing blocks 8 will rotate downward to release the clamping of the circuit board, so that the circuit board can be unloaded and collected by the bottom collection tray.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pin shearing device for printed circuit board processing, comprising a conveyor belt (1), characterized in that: The surface of the conveyor belt (1) is provided with a plurality of clamping mechanisms, a support frame (2) is provided in the middle of the conveyor belt (1), a collecting box (3) is provided at the bottom of the support frame (2), a hydraulic push rod (4) is fixedly connected to the top of the support frame (2), a lifting plate (5) is provided in the middle of the support frame (2), and a first stabilizing rod (6) is symmetrically fixedly connected to the top of the lifting plate (5); The inner cavity of the support frame (2) is symmetrically and fixedly connected with a shearing platform (7), and the bottom of the lifting plate (5) is provided with a cutting connection mechanism.

2. A pin cutting device for printed circuit board processing according to claim 1, characterized in that: The supporting side plates on both sides of the support frame (2) are located at the front and rear sides of the conveyor belt (1), the collecting box (3) passes through the supporting side plates of the support frame (2), and the shearing table (7) is located at the top of the conveyor belt (1).

3. A pin cutting device for printed circuit board processing according to claim 1, characterized in that: The lifting plate (5) is arranged on the top of the shearing table (7), the first stabilizing rod (6) penetrates the top wall of the support frame (2) and is fixedly connected to the limiting plate, and the movable end of the hydraulic push rod (4) is fixedly connected to the top wall of the lifting plate (5).

4. A pin cutting device for printed circuit board processing according to claim 1, characterized in that: The clamping mechanism comprises two fixed blocks (8), and clamping plates (9) are symmetrically arranged on opposite sides of the two fixed blocks (8). The fixed blocks (8) are fixed on the surface of the conveyor belt (1), and protective clamping pads are arranged on the tops of opposite sides of the two clamping plates (9).

5. A pin cutting device for printed circuit board processing according to claim 4, characterized in that: A connecting rod (10) is fixedly connected to one side of the clamping plate (9) close to the fixed block (8); one end of the connecting rod (10) extends into the interior of the fixed block (8) and is fixedly connected to a limiting plate (11); and a first spring (12) is sleeved on one end of the connecting rod (10) close to the limiting plate (11).

6. A pin cutting device for printed circuit board processing according to claim 1, characterized in that: The cutting connection mechanism comprises a first movable plate (16) arranged on both sides of the bottom of the lifting plate (5), a threaded rod (13) is inserted in the middle of the first movable plate (16), second stabilizing rods (14) are symmetrically inserted at both ends of the first movable plate (16), one end of the threaded rod (13) is connected to a motor (15), and both ends of the second stabilizing rod and the threaded rod (13) are sleeved with connecting seats, and the connecting seats are fixed to the bottom of the lifting plate (5).

7. A pin cutting device for printed circuit board processing according to claim 6, characterized in that: A plurality of mounting screws (17) are symmetrically fixedly connected to the opposite sides of the two first movable plates (16), and cutting blades (18) are symmetrically arranged on the opposite sides of the two first movable plates (16), wherein the mounting screws (17) penetrate the cutting blades (18) and are sleeved with nuts.

8. The pin cutting device for printed circuit board processing according to claim 6, characterized in that: A second movable plate (19) is symmetrically arranged on one side opposite to the two first movable plates (16); a plurality of limiting slide grooves (21) are symmetrically opened on one side opposite to the two first movable plates (16); a third stabilizing rod (22) is fixedly connected to the middle of the limiting slide groove (21); a second spring (23) and a limiting slider (24) are sleeved on the middle of the third stabilizing rod (22); the limiting slider (24) is fixed on one side of the second movable plate (19) and is located at the bottom of the second spring (23); a cleaning pad (20) is arranged at the bottom of the second movable plate (19).

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