A pin shear

Abstract

This utility model discloses a pin cutting machine, including a frame base and a gantry frame. Two sets of forward and backward moving modules are mounted on the frame base. A fixed support frame and a movable support frame are mounted on the drive end of each moving module. A first cylinder is mounted on the fixed support frame, and a first pressure plate is connected to the drive end of the first cylinder. A first mounting strip is mounted on the inner side of the fixed support frame, and the first pressure plate presses against the upper end of the first mounting strip. A second cylinder is mounted on the movable support frame, and a second pressure plate is connected to the drive end of the second cylinder. A second mounting strip is mounted on the inner side of the movable support frame, and the second pressure plate presses against the upper end of the second mounting strip. A lifting assembly is provided between the fixed support frame and the movable support frame. Pneumatic shears are mounted on the gantry frame. This pin cutting machine automates the cutting of pins on PCBs, ensuring consistent height while improving cutting efficiency and accuracy, and reducing manual labor for pin cutting.

Description

Technical Field

[0001] This utility model relates to the technical field of shearing, and in particular to a pin shearing machine. Background Technology

[0002] After components are inserted and soldered onto a PCB, the pins are of varying heights, posing a risk of interference during assembly. This necessitates manual trimming of long pins using scissors after observation. However, manual trimming results in inconsistent pin heights, and its efficiency and accuracy have been difficult to improve. Utility Model Content

[0003] One objective of this invention is to provide a pin cutting machine that clamps the PCB with a pressure plate, supports the bottom with a lifting assembly, and uses pneumatic scissors to quickly cut the pins.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A pin shearing machine includes a frame base and a gantry frame. Two sets of forward and backward moving modules are mounted on the frame base. A fixed support frame and a movable support frame are mounted on the drive end of each forward and backward moving module. A first cylinder is mounted on the fixed support frame, and a first pressure plate is connected to the drive end of the first cylinder. A first mounting strip is mounted on the inner side of the fixed support frame, and the first pressure plate presses against the upper end of the first mounting strip. A second cylinder is mounted on the movable support frame, and a second pressure plate is connected to the drive end of the second cylinder. A second mounting strip is mounted on the inner side of the movable support frame, and the second pressure plate presses against the upper end of the second mounting strip. A lifting assembly is provided between the fixed support frame and the movable support frame. A pneumatic shear is mounted on the gantry frame.

[0006] As a preferred technical solution, a carrier plate is fixed on the drive end of the front and rear moving module, and a slide rail is provided on the carrier plate along the front and rear direction, and the lower end of the movable support frame slides on the slide rail.

[0007] As a preferred technical solution, the lifting assembly includes a telescopic lifting bracket, a lifting support plate, and a lifting screw. The lifting screw controls the vertical extension and retraction of the telescopic lifting bracket. One end of the lifting screw is fixed with a handle. The lifting support plate is fixed to the upper end of the telescopic lifting bracket, and the lower end of the telescopic lifting bracket slides on the slide rail.

[0008] As a preferred technical solution, the fixed support frame has a first connecting groove arranged laterally in the middle, and the first mounting strip is inserted laterally into the first connecting groove. The movable support frame has a second connecting groove arranged laterally in the middle, and the second mounting strip is inserted laterally into the second connecting groove. One end of the first mounting strip and one end of the second mounting strip are both locked with positioning lock blocks.

[0009] As a preferred technical solution, both ends of the gantry are fixed to the rear side of the frame base.

[0010] As a preferred technical solution, a transverse module is installed at the upper end of the gantry frame, a vertical module is installed on the drive end of the transverse module, and the pneumatic shears are installed on the drive end of the vertical module.

[0011] As a preferred technical solution, a vacuum generator is installed on the rear side of the transverse module, and the vacuum generator is connected to the pneumatic shears.

[0012] As a preferred technical solution, the vertical movement module includes a vertical movement mounting plate, a vertical movement motor is mounted on the rear side of the vertical movement mounting plate, a first synchronous pulley is driven to the drive end of the vertical movement motor, a first synchronous belt is driven to the first synchronous pulley, a connecting shaft is fixed on the first synchronous belt, and the pneumatic shears are mounted on the lower end of the connecting shaft.

[0013] As a preferred technical solution, a rotary motor is fixed on the vertical moving mounting plate, and a second synchronous pulley is installed on both the drive end of the rotary motor and the connecting shaft. The second synchronous pulley is driven by a second synchronous belt.

[0014] The beneficial effects of this utility model are as follows: It provides a pin cutting machine that automatically cuts pins on PCBs, improving cutting efficiency and accuracy while ensuring consistent height, and reducing the labor required for manual pin cutting. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the overall structure of a pin shearing machine as described in the embodiment;

[0017] Figure 2 This is a schematic diagram of the first structure of the forward and backward moving module described in the embodiment;

[0018] Figure 3 This is a schematic diagram of the second structure of the forward and backward moving module described in the embodiment;

[0019] Figure 4This is an internal structural diagram of the vertical moving module described in the embodiment.

[0020] Figures 1 to 4 middle:

[0021] 1. Frame base; 2. Gantry frame; 3. Forward and backward moving module; 4. Fixed support frame; 5. Movable support frame; 6. First cylinder; 7. First pressure plate; 8. First mounting strip; 9. Second cylinder; 10. Second pressure plate; 11. Second mounting strip; 12. Lifting assembly; 13. Pneumatic shears; 14. Carrier plate; 15. Slide rail; 16. Telescopic lifting bracket; 17. Lifting support plate; 18. Lifting screw; 19. Handle; 20. Positioning lock block; 21. Horizontal moving module; 22. Vertical moving module; 23. Vacuum generator; 24. Vertical moving mounting plate; 25. Vertical moving motor; 26. First synchronous pulley; 27. First synchronous belt; 28. Coupling; 29. ​​Rotary motor; 30. Second synchronous pulley; 31. Second synchronous belt. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] like Figures 1 to 4 As shown in this embodiment, a pin shearing machine includes a frame base 1 and a gantry frame 2. Two sets of forward and backward moving modules 3 are installed on the frame base 1. A fixed support frame 4 and a movable support frame 5 are installed on the drive end of the forward and backward moving modules 3. A first cylinder 6 is provided on the fixed support frame 4. A first pressure plate 7 is connected to the drive end of the first cylinder 6. A first mounting strip 8 is installed on the inner side of the fixed support frame 4. The first pressure plate 7 presses on the upper end of the first mounting strip 8. A second cylinder 9 is provided on the movable support frame 5. A second pressure plate 10 is connected to the drive end of the second cylinder 9. A second mounting strip 11 is installed on the inner side of the movable support frame 5. The second pressure plate 10 presses on the upper end of the second mounting strip 11. A lifting assembly 12 is provided between the fixed support frame 4 and the movable support frame 5. A pneumatic shear 13 is installed on the gantry frame 2.

[0024] After the PCB with soldered components is flipped over, the position of the movable support frame 5 relative to the fixed support frame 4 is adjusted according to the width of the PCB. Then, the two ends of the PCB are placed on the first mounting strip 8 and the second mounting strip 11 respectively. The first cylinder 6 and the second cylinder 9 control the first pressure plate 7 and the second pressure plate 10 to move downwards to fix the PCB. At the same time, the lifting component 12 lifts the PCB from below to support the middle of the PCB. According to the required pin position, the forward and backward moving module 3 controls the forward and backward movement of the PCB. The pneumatic scissors 13 added to the gantry move left and right and up and down to cut the pins.

[0025] A carrier plate 14 is fixed on the drive end of the forward and backward moving module 3. A slide rail 15 is provided on the carrier plate 14 along the forward and backward direction. The lower end of the movable support frame 5 slides on the slide rail 15. During the adjustment process according to the width of the PCB, the movable support frame 5 moves forward and backward along the slide rail 15 to adjust the distance between it and the fixed support frame 4.

[0026] The lifting assembly 12 includes a telescopic lifting bracket 16, a lifting support plate 17, and a lifting screw 18. The lifting screw 18 controls the vertical extension and retraction of the telescopic lifting bracket 16. A handle 19 is fixed to one end of the lifting screw 18. The lifting support plate 17 is fixed to the upper end of the telescopic lifting bracket 16. The lower end of the telescopic lifting bracket 16 slides on the slide rail 15. When lifting the lower end of the PCB, the handle 19 is manually turned to rotate the lifting screw 18, which drives the telescopic lifting bracket 16 to rise. After reaching the desired height, it stops, and the lifting support plate 17 is just touching the lower end of the PCB.

[0027] The fixed support frame 4 has a first connecting groove in the middle, and the first mounting strip 8 is inserted into the first connecting groove in the middle. The movable support frame 5 has a second connecting groove in the middle, and the second mounting strip 11 is inserted into the second connecting groove in the middle. One end of the first mounting strip 8 and one end of the second mounting strip 11 are locked with a positioning lock block 20. Different mounting strips can be replaced according to different batches of PCBs. The mounting strip can be pulled out from the connecting groove in the middle. The positioning lock block 20 is used for positioning the PCB.

[0028] The two ends of the gantry frame 2 are fixed to the rear side of the frame base 1. Furthermore, a horizontal movement module 21 is installed on the upper end of the gantry frame 2. A vertical movement module 22 is installed on the drive end of the horizontal movement module 21. The pneumatic shears 13 are installed on the drive end of the vertical movement module 22. A vacuum generator 23 is installed on the rear side of the horizontal movement module 21. The vacuum generator 23 is connected to the pneumatic shears 13. The horizontal movement module 21 controls the left and right movement of the pneumatic shears 13, while the vertical movement module 22 controls the up and down movement of the pneumatic shears 13. The vacuum generator 23 controls the opening and closing of the pneumatic shears 13.

[0029] The vertical movement module 22 includes a vertical movement mounting plate 24, a vertical movement motor 25 is mounted on the rear side of the vertical movement mounting plate 24, a first synchronous pulley 26 is driven to the drive end of the vertical movement motor 25, a first synchronous belt 27 is driven to the first synchronous pulley 26, a coupling shaft 28 is fixed on the first synchronous belt 27, and a pneumatic scissor 13 is mounted on the lower end of the coupling shaft 28; a rotary motor 29 is fixed on the vertical movement mounting plate 24, a second synchronous pulley 30 is mounted on both the drive end of the rotary motor 29 and the coupling shaft 28, and a second synchronous belt 31 is driven to the second synchronous pulley 30.

[0030] In the vertical direction, the vertical movement motor 25 controls the rotation of the first synchronous pulley 26, and the first synchronous belt 27 drives the pneumatic scissors 13 to move up and down. At the same time, the rotary motor 29 controls the rotation of the second synchronous pulley 30, and the second synchronous belt 31 drives the pneumatic scissors 13 to rotate, so that stitches in different positions and directions can be cut.

[0031] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles applied thereto. Within the scope of the technology disclosed in this utility model, any variations or substitutions that are easily conceived by those skilled in the art should be covered within the protection scope of this utility model.

Claims

1. A pin snip machine characterized by, The system includes a frame base and a gantry frame. Two sets of forward and backward moving modules are mounted on the frame base. A fixed support frame and a movable support frame are mounted on the drive end of each forward and backward moving module. A first cylinder is mounted on the fixed support frame, and a first pressure plate is connected to the drive end of the first cylinder. A first mounting strip is mounted on the inner side of the fixed support frame, and the first pressure plate presses against the upper end of the first mounting strip. A second cylinder is mounted on the movable support frame, and a second pressure plate is connected to the drive end of the second cylinder. A second mounting strip is mounted on the inner side of the movable support frame, and the second pressure plate presses against the upper end of the second mounting strip. A lifting assembly is provided between the fixed support frame and the movable support frame. A pneumatic shear is mounted on the gantry frame.

2. A pin snip machine according to claim 1, wherein, A carrier plate is fixed on the drive end of the front and rear moving module, and a slide rail is provided on the carrier plate along the front and rear direction. The lower end of the movable support frame slides on the slide rail.

3. A pin cutting machine according to claim 2, characterized in that, The lifting assembly includes a telescopic lifting bracket, a lifting support plate, and a lifting screw. The lifting screw controls the vertical extension and retraction of the telescopic lifting bracket. One end of the lifting screw is fixed with a handle. The lifting support plate is fixed to the upper end of the telescopic lifting bracket, and the lower end of the telescopic lifting bracket slides on the slide rail.

4. A pin cutting machine according to claim 1, characterized in that, The fixed support frame has a first connecting groove arranged horizontally in the middle, and the first mounting strip is inserted horizontally into the first connecting groove. The movable support frame has a second connecting groove arranged horizontally in the middle, and the second mounting strip is inserted horizontally into the second connecting groove. One end of the first mounting strip and one end of the second mounting strip are both locked with positioning lock blocks.

5. A pin cutting machine according to claim 1, characterized in that, The two ends of the gantry are fixed to the rear side of the frame base.

6. A pin cutting machine according to claim 1, characterized in that, A horizontal movement module is installed at the upper end of the gantry frame, and a vertical movement module is installed on the drive end of the horizontal movement module. The pneumatic shears are installed on the drive end of the vertical movement module.

7. A pin cutting machine according to claim 6, characterized in that, A vacuum generator is installed on the rear side of the transverse module, and the vacuum generator is connected to the pneumatic shears.

8. A pin cutting machine according to claim 6, characterized in that, The vertical movement module includes a vertical movement mounting plate, a vertical movement motor is mounted on the rear side of the vertical movement mounting plate, a first synchronous pulley is driven to the drive end of the vertical movement motor, a first synchronous belt is driven to the first synchronous pulley, a connecting shaft is fixed on the first synchronous belt, and the pneumatic shears are mounted on the lower end of the connecting shaft.

9. A pin cutting machine according to claim 8, characterized in that, A rotary motor is fixed on the vertical moving mounting plate. A second synchronous pulley is mounted on both the drive end of the rotary motor and the connecting shaft. The second synchronous pulley is connected to a second synchronous belt.

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