PCB burr grinding machine

Abstract

The PCB burr grinding machine comprises a bottom plate, the upper end of the bottom plate protrudes and is fixedly connected with a multi-stage air cylinder, the output end of the air cylinder is fixedly connected with a sliding plate, the upper end of the outer wall of the sliding plate is fixedly connected with a vertical plate, the right side of the front end of the outer wall of the bottom plate is fixedly connected with a bent plate, and the end of the right side of the bent plate is fixedly connected with a shell. According to the PCB burr grinding machine, through cooperation of the adjusting mechanism and the grinding plate, the output shaft of the motor rotates forwards to drive the worm to rotate, the position of the grinding plate is adjusted, the height of the grinding plate can be adjusted according to the thickness of a PCB, and therefore the machining limitation is reduced; when the PCB is machined, the clamping block can be continuously driven to move leftwards until the PCB is tightly abutted, so that the PCB is clamped, displacement of the PCB during machining can be reduced, the machining precision of the PCB is guaranteed, and the production quality of the PCB is improved.

Description

Technical Field

[0001] This utility model relates to the field of PCB board processing technology, and in particular to a PCB deburring machine. Background Technology

[0002] PCB deburring machines, also known as deburring machines or de-fringe machines, are mainly used in industrial production to remove burrs, flash, oxide scale, and other defects from the surface of workpieces in order to improve the surface quality of the workpieces.

[0003] For example, a PCB grinding machine with announcement number "CN221364093U" uses a second servo motor, a first turntable, a belt, a second turntable, a rotating rod, a striking disc, a second threaded rod, a second moving block, and a cleaning plate. The rotation of the first turntable drives the rotation of the second turntable, and the rotation of the second threaded rod moves the cleaning plate, thus cleaning the ground PCB board. This avoids inconvenience in subsequent processing due to inconvenient cleaning, improving PCB processing efficiency and increasing the utilization rate of the PCB grinding machine. However, the grinding plate of this PCB grinding machine can only move left and right, not up and down. Therefore, it cannot be adjusted according to the thickness of the PCB board and can only process PCB boards with a fixed thickness, which is a limitation. Furthermore, the moving plate of this PCB grinding machine lacks a clamping function, making the PCB board prone to displacement during grinding, resulting in grinding deviations, low grinding accuracy, and ultimately reduced product quality. Summary of the Invention

[0004] This utility model aims to solve the problems existing in the prior art by providing a PCB grinding and burring machine. The adjustment mechanism can adjust the position of the grinding board according to the thickness of the PCB board, thereby reducing limitations. The clamping mechanism fixes the PCB board to prevent deviation during grinding, thereby increasing product quality.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: This PCB grinding and burring machine includes a base plate and a shell. A multi-stage cylinder is fixedly connected to the upper end of the base plate. A slide plate is fixedly connected to the output end of the multi-stage cylinder. A vertical plate is fixedly connected to the upper end of the outer wall of the slide plate. A clamping mechanism is provided on the inner side of the vertical plate. The outer wall of the base plate is slidably connected to the slide plate. An adjustment mechanism is provided inside the shell. A grinding plate is provided below the adjustment mechanism.

[0006] To further improve the design, a curved plate is fixedly connected to the right side of the outer wall of the base plate, and a shell is fixedly connected to the right end of the curved plate.

[0007] Further improvements include a grip, with a threaded rod fixedly connected to the end of the grip. The outer sides of the threaded rod are threadedly connected to a first threaded block and a second threaded block, respectively. The left end of the threaded rod is rotatably connected to the clamping plate via a bearing. The lower end of the first threaded block is in contact with the second threaded block.

[0008] Further improvements include the following: the lower right corners of both sides of the first threaded block are rotatably connected to the vertical plate via pins; the lower end of the second threaded block is fixedly connected to the slide plate; and the lower end of the outer wall of the clamping plate is slidably connected to the straight rod machined on the inner wall of the slide plate.

[0009] In a further improvement, the adjustment mechanism includes a motor, the output shaft of which is fixedly connected to a worm gear, the worm gear meshing with a worm wheel, the rotating shaft of the worm wheel being fixedly connected to a rotating rod, the lower end of the rotating rod being fixedly connected to a slider, the outer wall of the slider being slidably connected to a sliding frame, the outer wall of the sliding frame being slidably connected to a housing, and the rotating shaft of the worm wheel being rotatably connected to the housing via a bearing.

[0010] Further improvements include a fixed connection between the outer wall of the motor and the outer casing, and a fixed connection between the lower end of the sliding frame and the grinding plate.

[0011] The beneficial effects of this utility model are as follows: Through the coordination of the adjusting mechanism and the grinding plate, the output shaft of the motor rotates clockwise, driving the worm gear to rotate. The worm gear then drives the worm wheel to rotate, which in turn drives the rotating rod to rotate. This rotating rod then drives the slider to rotate, which in turn drives the sliding frame to move downwards. Because the slider slides within the sliding frame, it does not cause the sliding frame to move laterally, but only vertically. This movement of the sliding frame causes the grinding plate to move downwards. When the downward movement of the sliding frame causes the grinding plate to reach the same height as the PCB board, the motor stops. This achieves position adjustment of the grinding plate, allowing the height of the grinding plate to be adjusted according to the thickness of the PCB board. This enables the processing of PCB boards of various thicknesses, thereby reducing processing limitations.

[0012] By coordinating the clamping mechanism and the sliding plate, the right protrusion of the first threaded block is pushed downwards. The first threaded block rotates clockwise around the pin as its rotation center until the thread on the first threaded block disengages from the surface of the threaded rod. Then, the operator moves the threaded rod to the left. Since the threaded rod is disengaged from the first threaded block, it can move directly. When the threaded rod moves to the left, it causes the clamping plate to move to the left and fit against the PCB board. The first threaded block is then reset, so that the first threaded block re-engages with the threaded rod. Then, the threaded rod is rotated, and it engages with the first and second threaded blocks. This allows the clamping block to continue moving to the left until the PCB board is firmly pressed against it. This achieves the clamping of the PCB board, reducing displacement of the PCB board during processing, thereby ensuring the processing accuracy of the PCB board and improving the quality of PCB board production. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 A front sectional view;

[0015] Figure 3 This refers to the clamping state of the clamping mechanism;

[0016] Figure 4 This is a right-side sectional view of the adjustment mechanism;

[0017] Figure 5 This is a front view of the clamping mechanism;

[0018] Figure 6 for Figure 2 A schematic diagram of the structure of part A.

[0019] Explanation of reference numerals in the attached drawings: 1. Base plate, 2. Multi-stage cylinder, 3. Slide plate, 4. Clamping mechanism, 401. Handle, 402. Threaded rod, 403. First threaded block, 404. Second threaded block, 405. Clamping plate, 5. Vertical plate, 6. Bend plate, 7. Outer shell, 8. Adjustment mechanism, 801. Motor, 802. Worm gear, 803. Worm wheel, 804. Rotating rod, 805. Slider, 806. Sliding frame, 9. Grinding plate. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] See attached document Figure 1-6 :

[0022] In this embodiment, a PCB grinding and polishing machine includes a base plate 1. A multi-stage cylinder 2 is fixedly connected to the upper end of the base plate 1. A slide plate 3 is fixedly connected to the output end of the multi-stage cylinder 2. The extension and retraction of the output end of the multi-stage cylinder 3 drives the slide plate 3 to move. A vertical plate 5 is fixedly connected to the upper end of the outer wall of the slide plate 3. The movement of the slide plate 3 drives the vertical plate 5 to move. A clamping mechanism 4 is provided on the inner side of the vertical plate 5. The movement of the vertical plate 5 drives the clamping mechanism 4 to move. The outer wall of the base plate 1 is slidably connected to the slide plate 3. An adjustment mechanism 8 is provided inside the outer shell 7. A grinding plate 9 is provided below the adjustment mechanism 8. A curved plate 6 is fixedly connected to the right front end of the outer wall of the base plate 1. The outer shell 7 is fixedly connected to the right end of the curved plate 6. The working mode of the grinding plate 9 is the same as that of the grinding plate 9 in the PCB grinding machine with announcement number "CN221364093U".

[0023] See attached document Figure 1-3 And 5:

[0024] The clamping mechanism 4 includes a handle 401, with a threaded rod 402 fixedly connected to the end of the handle 401. Rotating the handle 401 causes the threaded rod 402 to rotate. The outer sides of the threaded rod 402 are threadedly connected to a first threaded block 403 and a second threaded block 404, respectively. The right sides of both the first threaded block 403 and the second threaded block 404 are curved, ensuring that the first threaded block 403 will not jam with the second threaded block 404 when rotating around the pin. The left end of the threaded rod 402 is rotatably connected to a clamping plate 405 via a bearing. Moving the threaded rod 402 causes the clamping plate 405 to move. The lower end of the threaded block 403 is in contact with the second threaded block 404. The lower right corners of both sides of the first threaded block 403 are rotatably connected to the vertical plate 5 through pins. The upper end of the first threaded block 403 has a lever. When the operator moves the lever, the first threaded block 403 can rotate around the pin as the rotation center, which can disengage the thread of the first threaded block 403 from the threaded rod 402, allowing the threaded rod 402 to move quickly. The lower end of the second threaded block 404 is fixedly connected to the slide plate 3. The lower end of the outer wall of the clamping plate 405 is slidably connected to the straight rod machined on the inner wall of the slide plate 3. The slide plate 3 limits the clamping plate 405.

[0025] See attached document Figure 1-2 4 and 6:

[0026] The adjusting mechanism 8 includes a motor 801. The output shaft of the motor 801 is fixedly connected to a worm gear 802. The rotation of the output shaft of the motor 801 drives the worm gear 802 to rotate. The worm gear 802 meshes with a worm wheel 803. The rotation of the worm gear 802 drives the worm wheel 803 to rotate. The rotating shaft of the worm wheel 803 is fixedly connected to a rotating rod 804. The rotation of the worm wheel 803 drives the rotating rod 804 to rotate. The lower end of the rotating rod 804 is fixedly connected to a slider 805. The rotation of the rotating rod 804 drives the slider 805 to move. The outer wall of the slider 805 is slidably connected to a sliding frame 806. The movement of the slider 805 drives the sliding frame 806 to move. The outer wall of the sliding frame 806 is slidably connected to the outer shell 7. The sliding frame 806 is limited by the outer shell 7. The rotating shaft of the worm wheel 803 is rotatably connected to the outer shell 7 through a bearing. The outer wall of the motor 801 is fixedly connected to the outer shell 7. The lower end of the sliding frame 806 is fixedly connected to the grinding plate 9.

[0027] Working principle;

[0028] When deburring and removing burrs from PCB boards.

[0029] Preparation:

[0030] The staff placed the PCB board on top of slide 3 (e.g.) Figure 2 The left side of the slide plate 3 is placed against the protrusion. Then, the operator moves the right protrusion of the first threaded block 403 downwards. The first threaded block 403 rotates clockwise around the pin until the thread on the first threaded block 403 disengages from the surface of the threaded rod 402 (e.g., Figure 5 Then, the workers lift the threaded rod 402 upwards, disengaging it from the second threaded block 404. The threaded rod 402 is then moved to the left. Since it is disengaged from both the second and first threaded blocks 404 and 403, it can move directly. As the threaded rod 402 moves to the left, it causes the clamping plate 405 to move to the left and engage with the PCB board. The first threaded block 403 is then reset, re-engaging with the threaded rod 402 (e.g., ...). Figure 2 Then rotate the threaded rod 402, which meshes with the first threaded block 403 and the second threaded block 404. This will continue to move the clamping plate 405 to the left until the PCB board is pressed against it. Because the threaded rod 402 has a self-locking function, it can prevent the clamping plate 405 from loosening, thus achieving the clamping of the PCB board.

[0031] Adjustment work:

[0032] When motor 801 is started, the output shaft of motor 801 rotates forward, driving the worm gear 802 to rotate (e.g., Figure 6 The rotation of worm gear 802 drives worm wheel 803 to rotate, which in turn drives rotating rod 804 to rotate. Rotating rod 804 drives slider 805 to rotate, which in turn drives sliding frame 806 to move downward. Because slider 805 slides within sliding frame 806, it does not cause sliding frame 806 to move laterally, but only vertically. The movement of sliding frame 806 causes grinding plate 9 to move downward. When sliding frame 806 moves downward to its maximum distance, rotating rod 804 continues to rotate, causing sliding frame 806 to move upward. The working method is the same as described above. When sliding frame 806 moves downward and causes grinding plate 9 to move downward to the same height as the PCB board, motor 801 stops. Due to the self-locking function of worm wheel 803 and worm gear 802, grinding plate 9 stops at this height, thus realizing the position adjustment of grinding plate 9.

[0033] Work process;

[0034] Start multi-stage cylinder 2 (e.g.) Figure 1 The output end of the multi-stage cylinder 2 extends, driving the slide plate 3 to move towards the grinding plate 9. The movement of the slide plate 3 drives the clamping mechanism 4 to move, thereby moving the PCB board. As the PCB board moves past the bottom of the grinding plate 9, the grinding plate 9 can perform grinding on the PCB board. After the entire PCB board is ground, the output end of the multi-stage cylinder 2 retracts, allowing for a second grinding of the PCB board, resulting in a better grinding effect. The grinding is completed when the output end of the multi-stage cylinder 2 retracts to its limit position. If it is necessary to re-clamp the PCB board on the back, repeat the above operation to process the back of the PCB board. After all is completed, turn off all power.

[0035] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A PCB burring machine, comprising a base plate (1) and a housing (7), characterized in that: The upper end of the base plate (1) is fixedly connected to a multi-stage cylinder (2), the output end of the multi-stage cylinder (2) is fixedly connected to a slide plate (3), the upper end of the outer wall of the slide plate (3) is fixedly connected to a vertical plate (5), the inner side of the vertical plate (5) is provided with a clamping mechanism (4), the outer wall of the base plate (1) is slidably connected to the slide plate (3), the inner side of the outer shell (7) is provided with an adjustment mechanism (8), and the lower part of the adjustment mechanism (8) is provided with a grinding plate (9).

2. The PCB burring machine according to claim 1, characterized in that: A curved plate (6) is fixedly connected to the right side of the outer wall of the base plate (1), and a shell (7) is fixedly connected to the right end of the curved plate (6).

3. The PCB burring machine according to claim 1, characterized in that: The clamping mechanism (4) includes a handle (401), and a threaded rod (402) is fixedly connected to the end of the handle (401). The outer walls of the threaded rod (402) are threadedly connected to the first threaded block (403) and the second threaded block (404) on both sides respectively. The left end of the threaded rod (402) is rotatably connected to the clamping plate (405) through a bearing. The lower end of the first threaded block (403) is in contact with the second threaded block (404).

4. The PCB burring machine according to claim 3, characterized in that: The lower right corners of both sides of the first threaded block (403) are rotatably connected to the vertical plate (5) by a pin shaft. The lower end of the second threaded block (404) is fixedly connected to the slide plate (3). The lower end of the outer wall of the clamping plate (405) is slidably connected to the straight rod processed on the inner wall of the slide plate (3).

5. The PCB burring machine according to claim 2, characterized in that: The adjustment mechanism (8) includes a motor (801), the output shaft of which is fixedly connected to a worm (802), the worm (802) meshing with a worm wheel (803), the rotating shaft of the worm wheel (803) being fixedly connected to a rotating rod (804), the lower end of the rotating rod (804) being fixedly connected to a slider (805), the outer wall of the slider (805) being slidably connected to a sliding frame (806), the outer wall of the sliding frame (806) being slidably connected to a housing (7), and the rotating shaft of the worm wheel (803) being rotatably connected to the housing (7) through a bearing.

6. The PCB burring machine according to claim 5, characterized in that: The outer wall of the motor (801) is fixedly connected to the outer shell (7), and the lower end of the slide frame (806) is fixedly connected to the grinding plate (9).

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