Circuit board pin shearing device

Abstract

The utility model relates to the technical field of circuit board production, in particular to a circuit board pin shearing device which comprises a base, two supporting blocks are arranged on the top face of the base, a stand column is connected to one supporting block in a sliding mode, a moving block is connected to the stand column in a sliding mode, a first pneumatic sliding table is installed on the side wall of the moving block, and a second pneumatic sliding table is installed on the side wall of the moving block. A rotary air cylinder is installed on a sliding block of the first pneumatic sliding table through an installation base, a connecting column is fixedly arranged on a rotary table of the rotary air cylinder, a fixing block is fixedly arranged on the bottom face of the connecting column, a pneumatic shear body is installed at one end of the fixing block, and a shearing assembly is installed at the other end of the fixing block. And two shearing knives are arranged on the shearing assembly. When a plurality of leads on the same axis are sheared, the shearing knife on the shearing assembly is used for shearing, so that the complexity and time consumption of one-by-one processing are avoided, the shearing efficiency is improved, the working efficiency is further improved, and the pin shearing requirements of different angles and directions are met.

Description

Technical Field

[0001] This utility model relates to the field of circuit board manufacturing technology, and in particular to a circuit board pin cutting device. Background Technology

[0002] In the electronics manufacturing industry, lead cutting of circuit boards (PCBs) is a crucial step. With the development of automation technology, more and more companies are adopting automated cutting devices to improve production efficiency and cutting accuracy.

[0003] A search revealed a Chinese patent with publication number CN216176215U, which provides a wireless fast charging circuit board pin cutting device. The device uses a cylinder or other components in the drive assembly to push the operating end head up and down. When the operating end head reaches the upper surface of the wireless fast charging circuit board, the cutting end head at its end cuts off the pins on the wireless fast charging circuit board. When the pressure plate rises, a new set of wireless fast charging circuit boards is placed on the support base. The processed wireless fast charging circuit boards are then automatically pushed off from the other side of the support base, resulting in high processing efficiency.

[0004] However, during use, it was found that the cutting tip in the existing device is usually designed for cutting a single pin. When multiple pins need to be cut, they must be processed one by one. For some electronic components and their pins soldered on the same axis on some circuit boards, the existing device is particularly cumbersome, time-consuming and labor-intensive when cutting, which is not conducive to the rapid cutting of circuit board pins. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a circuit board pin cutting device. When cutting multiple leads on the same axis, the cutting is performed by a cutting blade on the cutting assembly, avoiding the tedious and time-consuming process of processing them one by one, improving cutting efficiency, further enhancing work efficiency, and adapting to the pin cutting needs of different angles and directions.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a circuit board pin cutting device, including a base, two support blocks on the top surface of the base, a column slidably connected to one of the support blocks, a movable block slidably connected to the column, a first pneumatic slide table mounted on the side wall of the movable block, a rotary cylinder mounted on the slider of the first pneumatic slide table via a mounting seat, a connecting column fixed on the rotating platform of the rotary cylinder, a fixing block fixed on the bottom surface of the connecting column, a pneumatic scissor body mounted on one end of the fixing block, a cutting assembly mounted on the other end of the fixing block, and two cutting blades mounted on the cutting assembly.

[0007] Preferably, the top surface of the base is provided with a plurality of guide rails arranged in a uniform structure, one of the support blocks is slidably connected to the guide rails, and a first cylinder is mounted on the outer wall of the base through a mounting seat, the piston rod of the first cylinder being fixedly connected to the outer wall of one of the support blocks.

[0008] Preferably, a positioning block is fixedly provided on the upper end of the support block, and multiple rotating columns are rotatably connected to the positioning block in a uniform arrangement. A positioning wheel is fixedly connected to the outer peripheral wall of the upper end of the rotating column, and a worm gear is fixedly connected to the outer peripheral wall of the lower end of the rotating column.

[0009] The above technical solution involves using the piston rod of the first cylinder to push one of the support blocks to slide along the guide rail, causing the moving support block to drive one of the positioning blocks and its rotating column to move synchronously, thus moving the positioning wheels on both sides to a suitable distance.

[0010] Preferably, a rotating shaft is provided below the positioning block, and mounting blocks are rotatably connected to both ends of the rotating shaft. Multiple worm thread teeth are fixed on the outer peripheral wall of the rotating shaft in a uniformly arranged structure. The worm thread teeth mesh with the worm wheel. A servo motor is mounted on the outer wall of one of the mounting blocks through a mounting seat.

[0011] Preferably, a circuit board body is provided between the two support blocks, and the edge of the circuit board body is in frictional contact with the concave part of the positioning wheel.

[0012] The above technical solution drives the rotating shaft to rotate synchronously through the output shafts of two servo motors. At this time, the rotating shaft drives the worm gear to rotate synchronously. The worm gear meshes and transmits the power to the worm wheel, causing the rotating column and the positioning wheel to rotate synchronously. This allows the outer wall of the circuit board body of the same size to rub against the concave part of the positioning wheel for movement and transport.

[0013] Preferably, a T-shaped block is slidably connected to the lower end of the column, and a second pneumatic slide is installed on the lower side of the T-shaped block. The top surface of the slider of the second pneumatic slide is fixedly connected to the bottom surface of the column. A second cylinder is installed on the rear wall of the column through a front end mounting seat, and the top surface of the piston rod of the second cylinder is fixedly connected to the bottom surface of the moving block.

[0014] The above technical solution uses a slider on the second pneumatic slide to push the column along the T-shaped block, and then uses a second cylinder to push the moving block along the column to a suitable height.

[0015] Preferably, the shearing assembly includes a lifting block, which is slidably connected to a connecting column. A stop is fixed on the top surface of the shearing blade, one of which has its outer wall slidably connected to a fixed block, and the other stop is slidably connected to the lifting block.

[0016] Preferably, a first dual-axis cylinder is mounted on the lower end of the connecting column via a mounting base, the bottom surface of the piston rod of the first dual-axis cylinder is fixedly connected to the top surface of the lifting block, and a second dual-axis cylinder is mounted on the side of the bottom surface of the lifting block away from the connecting column via a mounting base.

[0017] The above technical solution uses the piston rod of the first dual-axis cylinder to drive the lifting block to move downwards, thereby bringing the shearing blade closer to the pin.

[0018] Preferably, the piston rod of the second dual-axis cylinder is fixedly connected to the outer wall of the stop block on the side away from the connecting column, the shearing blade is hollow, the inner side wall of the shearing blade is provided with multiple conveying grooves, and one side of the shearing blade is connected to a conveying pipe.

[0019] Through the above technical solution, the piston rod of the second dual-axis cylinder pushes one of the stops to slide along the lifting block and gradually move closer to the other stop, so that the two shearing blades cut the pin.

[0020] Preferably, the bottom surface of the fixed block is fixed with an open suction block, the side wall of the open suction block is connected to a T-shaped suction pipe, and the two delivery pipes are respectively connected to the T-shaped suction pipe.

[0021] The above technical solution facilitates waste recycling by using a T-shaped suction pipe to suck up the open dust collection block and the conveying pipe.

[0022] The beneficial effects of this utility model are:

[0023] 1. By sliding the column on one of the support blocks, the moving block is moved to the appropriate cutting position. Then, the slider of the first pneumatic slide table drives the rotary cylinder to move synchronously, causing the rotary cylinder to move and rotate the connecting column and the fixed block on it. This adjusts the rotation angle of the pneumatic scissors body and the cutting assembly, facilitating the cutting of circuit board pins. The pneumatic scissors body is driven by compressed air to complete the cutting action. When cutting multiple leads on the same axis, the cutting blade on the cutting assembly is used to cut, avoiding the tedious and time-consuming process of processing them one by one, improving cutting efficiency, and further enhancing work efficiency. This adapts to the pin cutting needs of different angles and directions.

[0024] 2. The piston rod of the first cylinder pushes one of the support blocks to slide along the guide rail, causing the moving support block to drive one of the positioning blocks and its rotating column to move synchronously. After the positioning wheels on both sides are moved to the appropriate distance, the output shafts of the two servo motors drive the rotating shaft to rotate synchronously. At this time, the rotating shaft drives the worm gear to rotate synchronously. The worm gear meshes and transmits the power to the worm wheel, causing the rotating column and positioning wheel to rotate synchronously. The outer wall of the circuit board body of the same size rubs against the concave part of the positioning wheel for movement and transport. After being transported to the appropriate pin cutting position, the positioning wheel stops rotating. This method is suitable for transporting and positioning circuit board bodies of different sizes, realizing the precise positioning and transport of the circuit board body and improving production efficiency.

[0025] 3. The column is pushed to slide along the T-shaped block by the slider of the second pneumatic slide table, and then the moving block is pushed to slide along the column to a suitable height by the second cylinder. At this time, the fixed block moves synchronously with the column and the moving block to the appropriate use position. Then, the pneumatic scissor body or the shearing assembly is selected according to the pin for shearing. The selective shearing method not only improves the shearing efficiency, but also ensures the accuracy and reliability of the shearing.

[0026] 4. When cutting multiple pins on the same axis of the circuit board body, the piston rod of the first dual-axis cylinder drives the lifting block to move downward, bringing the cutting blade closer to the pin. The piston rod of the second dual-axis cylinder pushes one of the stops to slide along the lifting block and gradually move closer to the other stop, so that the two cutting blades cut the pin, improving the cutting efficiency of the pin and ensuring stability in the cutting process.

[0027] 5. When cutting leads, connect the air inlet of the external suction device to the T-shaped suction pipe. When cutting with the pneumatic shears, the T-shaped suction pipe sucks up the open dust collection block to collect the cut leads. When cutting with two shear blades, the T-shaped suction pipe sucks up the conveying pipe, allowing the cut leads to enter the conveying pipe through the conveying groove and then be transported into the T-shaped suction pipe. Continuous suction completes the collection, facilitating waste recycling, preventing waste accumulation in the work area, and maintaining a clean production environment. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a rear perspective view of the overall structure of this utility model;

[0030] Figure 3 This is a bottom perspective view of the worm gear structure of this utility model;

[0031] Figure 4This is a schematic diagram of the T-shaped block structure of this utility model;

[0032] Figure 5 This is a schematic diagram of the fixing block structure of this utility model;

[0033] Figure 6 This is a schematic diagram of the shearing component structure of this utility model;

[0034] Figure 7 This is a schematic diagram of the shearing blade structure of this utility model.

[0035] In the diagram: 1. Base; 2. Support block; 3. Column; 4. Moving block; 5. First pneumatic slide; 6. Rotary cylinder; 7. Connecting column; 8. Fixing block; 9. Pneumatic scissor body; 10. Shearing assembly; 1001. Shearing blade; 1002. Lifting block; 1003. Stop block; 1004. First dual-axis cylinder; 1005. Second dual-axis cylinder; 1006. Conveying trough; 1007. Conveying pipe; 11. Guide rail; 12. First cylinder; 13. Positioning block; 14. Rotating column; 15. Positioning wheel; 16. Worm gear; 17. Rotating shaft; 18. Mounting block; 19. Worm thread; 20. Servo motor; 21. Circuit board body; 22. T-shaped block; 23. Second pneumatic slide; 24. Second cylinder; 25. Opening suction block; 26. T-shaped suction pipe. Detailed Implementation

[0036] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example 1

[0037] like Figure 1-5 As shown, this embodiment provides a circuit board pin cutting device, including a base 1. The top surface of the base 1 is provided with two support blocks 2. A column 3 is slidably connected to one of the support blocks 2. A moving block 4 is slidably connected to the column 3. A first pneumatic slide 5 is installed on the side wall of the moving block 4. A rotary cylinder 6 is installed on the slider of the first pneumatic slide 5 through a mounting seat. A connecting column 7 is fixed on the rotating platform of the rotary cylinder 6. A fixing block 8 is fixed on the bottom surface of the connecting column 7. A pneumatic scissor body 9 is installed at one end of the fixing block 8. A cutting assembly 10 is installed at the other end of the fixing block 8. Two cutting blades 1001 are provided on the cutting assembly 10.

[0038] The top surface of the base 1 is fixed with multiple guide rails 11 arranged in a uniform structure. One of the support blocks 2 is slidably connected to the guide rail 11. The outer wall of the base 1 is mounted with a first cylinder 12 via a mounting seat. The piston rod of the first cylinder 12 is fixedly connected to the outer wall of one of the support blocks 2. A positioning block 13 is fixedly mounted on the upper end of the support block 2. Multiple rotating columns 14 are rotatably connected to the positioning block 13 in a uniform structure. A positioning wheel 15 is fixedly connected to the outer peripheral wall of the upper end of the rotating column 14. A worm gear 16 is fixedly connected to the outer peripheral wall of the lower end of the rotating column 14. The piston rod of the first cylinder 12 pushes one of the support blocks 2 to slide along the guide rail 11, so that the moving support block 2 drives one of the positioning blocks 13 and the rotating columns 14 on it to move synchronously, moving the positioning wheels 15 on both sides to a suitable distance.

[0039] A rotating shaft 17 is located below the positioning block 13. Mounting blocks 18 are rotatably connected to both ends of the rotating shaft 17. Multiple worm gear threads 19 are uniformly arranged on the outer peripheral wall of the rotating shaft 17. The worm gear threads 19 mesh with the worm wheel 16. A servo motor 20 is mounted on the outer wall of one of the mounting blocks 18 via a mounting base. A circuit board body 21 is located between the two support blocks 2. The edge of the circuit board body 21 rubs against the concave part of the positioning wheel 15. The output shafts of the two servo motors 20 drive the rotating shaft 17 to rotate synchronously. At this time, the rotating shaft 17 drives the worm gear threads 19 to rotate synchronously. The worm gear threads 19 mesh and transmit power to the worm wheel 16, causing the rotating column 14 and the positioning wheel 15 to rotate synchronously. This moves and transports the outer wall of the circuit board body 21 of the same size through frictional contact with the concave part of the positioning wheel 15.

[0040] A T-shaped block 22 is slidably connected to the lower end of the column 3. A second pneumatic slide 23 is installed on the lower side of the T-shaped block 22. The top surface of the slider of the second pneumatic slide 23 is fixedly connected to the bottom surface of the column 3. A second cylinder 24 is installed on the rear wall of the column 3 through the front mounting seat. The top surface of the piston rod of the second cylinder 24 is fixedly connected to the bottom surface of the moving block 4. The column 3 is pushed to slide along the T-shaped block 22 by the slider of the second pneumatic slide 23, and then the moving block 4 is pushed to slide along the column 3 to a suitable height by the second cylinder 24.

[0041] Working principle: First, the column 3 slides on one of the support blocks 2, driving the moving block 4 to move to the appropriate cutting position. Then, the slider of the first pneumatic slide table 5 drives the rotary cylinder 6 to move synchronously, causing the rotary cylinder 6 to drive the connecting column 7 and the fixed block 8 on it to move and rotate. This adjusts the rotation angle of the pneumatic scissor body 9 and the cutting assembly 10, facilitating the cutting of circuit board pins. The pneumatic scissor body 9 completes the cutting action by compressed air. When cutting multiple leads on the same axis, the cutting blade 1001 on the cutting assembly 10 is used for cutting, avoiding the tedious and time-consuming process of processing one by one, improving cutting efficiency, and further enhancing work efficiency to meet the pin cutting needs of different angles and directions.

[0042] When conveying the circuit board body 21, the piston rod of the first cylinder 12 pushes one of the support blocks 2 to slide along the guide rail 11, so that the moving support block 2 drives one of the positioning blocks 13 and its rotating column 14 to move synchronously. After the positioning wheels 15 on both sides are moved to a suitable distance, the output shafts of the two servo motors 20 drive the rotating shaft 17 to rotate synchronously. At this time, the rotating shaft 17 drives the worm thread teeth 19 to rotate synchronously. The worm thread teeth 19 mesh and transmit to the worm wheel 16 to rotate, so that the rotating column 14 and the positioning wheel 15 rotate synchronously. The outer wall of the circuit board body 21 of the same size rubs against the concave part of the positioning wheel 15 for movement and conveying. After being conveyed to a suitable pin cutting position, the positioning wheel 15 stops rotating. This method is suitable for conveying and positioning circuit board bodies 21 of different sizes, realizing the precise positioning and conveying of the circuit board body 21 and improving production efficiency.

[0043] The column 3 is pushed to slide along the T-block 22 by the slider of the second pneumatic slide table 23, and then the moving block 4 is pushed to slide along the column 3 to a suitable height by the second cylinder 24. At this time, the fixed block 8 moves synchronously with the column 3 and the moving block 4 to a suitable position. Then, the pneumatic scissor body 9 or the shearing assembly 10 is selected according to the pin to perform shearing. The selective shearing method not only improves the shearing efficiency, but also ensures the accuracy and reliability of shearing. Example 2

[0044] like Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7As shown, based on Embodiment 1, the shearing assembly 10 includes a lifting block 1002, which is slidably connected to the connecting column 7. A stop block 1003 is fixedly provided on the top surface of the shearing blade 1001. The outer wall of one stop block 1003 is slidably connected to the fixed block 8, and the other stop block 1003 is slidably connected to the lifting block 1002. A first dual-axis cylinder 1004 is mounted on the lower end of the connecting column 7 through a mounting seat. The bottom surface of the piston rod of the first dual-axis cylinder 1004 is fixedly connected to the top surface of the lifting block 1002. A second dual-axis cylinder 1005 is mounted on the side of the bottom surface of the lifting block 1002 away from the connecting column 7 through a mounting seat. The piston rod of the first dual-axis cylinder 1004 drives the lifting block 1002 to move downward, thereby driving the shearing blade 1001 to approach the pin.

[0045] The piston rod of the second dual-axis cylinder 1005 is fixedly connected to the outer wall of the stop 1003 on the side away from the connecting column 7. The shearing blade 1001 is hollow and has multiple conveying grooves 1006 on its inner side wall. A conveying pipe 1007 is connected to one side of the shearing blade 1001. The piston rod of the second dual-axis cylinder 1005 pushes one of the stop blocks 1003 to slide along the lifting block 1002 and gradually move closer to the other stop block 1003, so that the two shearing blades 1001 cut the pin.

[0046] An open suction block 25 is fixed to the bottom surface of the fixed block 8. A T-shaped suction pipe 26 is connected to the side wall of the open suction block 25. Two conveying pipes 1007 are respectively connected to the T-shaped suction pipe 26. The open suction block 25 and the conveying pipe 1007 are sucked through the T-shaped suction pipe 26, which facilitates the recycling of waste materials.

[0047] When cutting multiple pins on the same axis of the circuit board body 21, the piston rod of the first dual-axis cylinder 1004 drives the lifting block 1002 to move downward, causing the cutting blade 1001 to approach the pin. The piston rod of the second dual-axis cylinder 1005 pushes one of the stops 1003 to slide along the lifting block 1002 and gradually approach the other stop 1003, so that the two cutting blades 1001 cut the pin, improving the cutting efficiency of the pin and ensuring the stability of the cutting process.

[0048] When cutting the pins, the air inlet of the external suction device is connected to the T-shaped suction pipe 26. When cutting with the pneumatic scissors body 9, the open dust suction block 25 is suctioned through the T-shaped suction pipe 26 to collect the cut pins. When cutting with the two shearing blades 1001, the conveying pipe 1007 is suctioned through the T-shaped suction pipe 26, so that the cut pins enter the conveying pipe 1007 through the conveying groove 1006 and are then conveyed into the T-shaped suction pipe 26. The collection is completed by continuous suction, which facilitates the recycling of waste materials, avoids the accumulation of waste materials in the work area, and keeps the production environment clean.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A circuit board pin cutting device, comprising a base (1), characterized in that: The base (1) has two support blocks (2) on its top surface. One of the support blocks (2) is slidably connected to a column (3). The column (3) is slidably connected to a moving block (4). The side wall of the moving block (4) is equipped with a first pneumatic slide (5). The slider of the first pneumatic slide (5) is equipped with a rotary cylinder (6) via a mounting seat. The rotary cylinder (6) is fixedly mounted with a connecting column (7) on its rotating platform. The bottom surface of the connecting column (7) is fixedly mounted with a fixing block (8). One end of the fixing block (8) is equipped with a pneumatic scissor body (9). The other end of the fixing block (8) is equipped with a shearing assembly (10). The shearing assembly (10) is equipped with two shearing blades (1001).

2. The circuit board pin cutting device as described in claim 1, characterized in that: The top surface of the base (1) is uniformly arranged with multiple guide rails (11), and one of the support blocks (2) is slidably connected to the guide rail (11). The outer wall of the base (1) is equipped with a first cylinder (12) through a mounting seat, and the piston rod of the first cylinder (12) is fixedly connected to the outer wall of one of the support blocks (2).

3. The circuit board pin cutting device as described in claim 2, characterized in that: The upper end of the support block (2) is fixedly provided with a positioning block (13), and multiple rotating columns (14) are rotatably connected in a uniform arrangement on the positioning block (13). The upper outer peripheral wall of the rotating column (14) is fixedly connected with a positioning wheel (15), and the lower outer peripheral wall of the rotating column (14) is fixedly connected with a worm gear (16).

4. The circuit board pin cutting device as described in claim 3, characterized in that: The positioning block (13) is provided with a rotating shaft (17) below it. The two ends of the rotating shaft (17) are respectively rotatably connected to mounting blocks (18). Multiple worm thread teeth (19) are fixed on the outer peripheral wall of the rotating shaft (17) in a uniform arrangement. The worm thread teeth (19) are meshed with the worm wheel (16). A servo motor (20) is mounted on the outer wall of one of the mounting blocks (18) through a mounting seat.

5. The circuit board pin cutting device as described in claim 3, characterized in that: A circuit board body (21) is provided between the two support blocks (2), and the edge of the circuit board body (21) is in frictional contact with the concave part of the positioning wheel (15).

6. The circuit board pin cutting device as described in claim 1, characterized in that: The lower end of the column (3) is slidably connected to a T-shaped block (22), and a second pneumatic slide (23) is installed on the lower side of the T-shaped block (22). The top surface of the slider of the second pneumatic slide (23) is fixedly connected to the bottom surface of the column (3). A second cylinder (24) is installed on the rear wall of the column (3) through a front end mounting seat. The top surface of the piston rod of the second cylinder (24) is fixedly connected to the bottom surface of the moving block (4).

7. The circuit board pin cutting device as described in claim 1, characterized in that: The shearing assembly (10) includes a lifting block (1002), which is slidably connected to the connecting column (7). A stop block (1003) is fixed on the top surface of the shearing blade (1001). The outer wall of one of the stop blocks (1003) is slidably connected to the fixed block (8), and the other stop block (1003) is slidably connected to the lifting block (1002).

8. The circuit board pin cutting device as described in claim 7, characterized in that: The lower end of the connecting column (7) is equipped with a first dual-axis cylinder (1004) via a mounting seat. The bottom surface of the piston rod of the first dual-axis cylinder (1004) is fixedly connected to the top surface of the lifting block (1002). The bottom surface of the lifting block (1002) away from the connecting column (7) is equipped with a second dual-axis cylinder (1005) via a mounting seat.

9. The circuit board pin cutting device as described in claim 8, characterized in that: The piston rod of the second dual-axis cylinder (1005) is fixedly connected to the outer wall of the stop block (1003) on the side away from the connecting column (7). The shearing blade (1001) is hollow. Multiple conveying grooves (1006) are opened on the inner side wall of the shearing blade (1001). A conveying pipe (1007) is connected to one side of the shearing blade (1001).

10. The circuit board pin cutting device as described in claim 9, characterized in that: The bottom surface of the fixed block (8) is fixed with an open suction block (25), and the side wall of the open suction block (25) is connected to a T-shaped suction pipe (26). The two delivery pipes (1007) are respectively connected to the T-shaped suction pipe (26).

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