Circuit board edge grinding device

By designing a sealed box structure and a circuit board edge grinding device with a rotating cylinder assembly, the problems of powder and debris contamination and inflexible clamping were solved, achieving efficient powder collection and multi-sided edge grinding operation.

CN223802214UActive Publication Date: 2026-01-16ZHUHAI PLATINUM CIRCUIT CO LTD
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Patent Information

Application Number
CN202520301213.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2026-01-16
Estimated Expiration
2035-02-25

AI Technical Summary

Technical Problem

Existing circuit board edge grinding devices generate fine metal powder and plastic debris during the grinding process, which easily pollute the environment and are difficult to collect. The clamping system is not flexible enough, resulting in difficult operation and low efficiency.

Method used

A circuit board edge grinding device was designed, comprising a housing, a clamping assembly, and an edge grinding assembly. The housing collects powder and debris through its enclosed structure, and the rotating cylinder and rotating assembly enable flexible clamping and angle adjustment of the circuit board.

Benefits of technology

It effectively prevents powder and debris from scattering, improves collection efficiency, and simplifies the multi-sided grinding operation of circuit boards through a flexible clamping system, thereby improving work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of edge grinding devices, in particular to a circuit board edge grinding device. Comprising a clamping assembly and an edge grinding assembly. The clamping assembly is arranged in the box body, a box door is hinged to one side of the box body, a connecting assembly is arranged on the box door, a storage frame slides at the bottom of the box body, an opening leading to the storage frame is formed in the bottom of the box body, and a plurality of group guide plates are fixed at the opening; each clamping assembly comprises two rotating cylinders rotationally arranged on the two sides of the box body, sliding rods are arranged in the rotating cylinders in a limited sliding mode, clamping blocks are fixed to one ends of the sliding rods, a plurality of threaded holes are formed in one sides of the clamping blocks, a plurality of clamping rods are arranged on one sides of the clamping blocks, and an adjusting assembly for adjusting the distance between the two clamping blocks is arranged on the other side of the box body. A rotating assembly is arranged on one side of the box body; the edging assembly is arranged on the top of the box. According to the circuit board edge grinding device, fine metal powder and plastic chippings are prevented from scattering all around easily, the fine metal powder and the plastic chippings can be collected conveniently, and a clamped circuit board is easy to operate when the direction needs to be rotated.
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Description

TECHNICAL FIELD

[0001] The utility model relates to an edge grinding device technical field, specifically line board edge grinding device. BACKGROUND

[0002] With the development of electronic industry, printed circuit board (PCB) as one of the core components of electronic equipment, its manufacturing precision and quality requirement are higher and higher. In order to ensure that the edge of the circuit board is smooth, without burr, and meets the assembly requirement, it is usually necessary to carry out edge grinding treatment to the circuit board. For this purpose, a kind of circuit board edge grinding device is specially designed to improve processing efficiency and product quality. Common circuit board edge grinding device is composed of workbench, clamping assembly, edge grinding assembly, and the following shortcomings are found in use:

[0003] 1, a large amount of fine metal powder and plastic debris will be produced in the edge grinding process, if not polished in a closed environment, it is easy to pollute the environment, and it is not convenient to collect fine metal powder and plastic debris;

[0004] 2, for the circuit board that needs to carry out edge grinding treatment to multiple edges, the existing clamping system is not flexible. Once the edge is completed, if the adjacent edge is processed, the clamping is released, the position of the circuit board is adjusted again and then clamped, which is time-consuming and laborious, and reduces the overall working efficiency.

[0005] Therefore, in view of the above, the existing structure is improved, and a kind of circuit board edge grinding device is provided. INVENTION CONTENTS

[0006] The technical problem to be solved by the utility model is that fine metal powder and plastic debris are easy to scatter, inconvenient to collect, and the clamped circuit board is difficult to operate when rotating.

[0007] In order to solve the above technical problems, the technical scheme adopted by the utility model is as follows: a kind of circuit board edge grinding device, including clamping assembly and edge grinding assembly, and clamping assembly clamps circuit board, and edge grinding assembly is arranged above circuit board;

[0008] The clamping assembly is arranged in the box body, the box door is hingedly arranged on one side of the box body, the connecting assembly connected with the box body is arranged on the box door, the receiving frame is slidably arranged at the bottom of the box body, the opening leading to the receiving frame is arranged at the bottom of the box body, and a plurality of guide plates are fixedly arranged at the opening, and each group of guide plates is arranged opposite to each other, and the outlet is formed between each group of guide plates.

[0009] The clamping assembly comprises two rotating cylinders rotatably embedded on both sides of the box body, the two rotating cylinders are oppositely arranged, a sliding rod is slidably arranged in the rotating cylinder, one end of the sliding rod is fixedly connected with a clamping block, a plurality of threaded holes are arranged on one side of the clamping block, a plurality of clamping rods are threadedly connected with the threaded holes on one side of the clamping block, an adjusting assembly for adjusting the distance between the two clamping blocks is arranged on the other side of the box body, and a rotating assembly for controlling the rotation of one of the rotating cylinders is arranged on one side of the box body.

[0010] The edge grinding assembly is arranged on the top of the box body.

[0011] As a further scheme of the utility model, the connecting assembly comprises a movable groove arranged on the box door, an L-shaped connecting block is slidably arranged in the movable groove, one end of the L-shaped connecting block movably penetrates the box door and is clamped in the box body, springs are fixedly arranged between the L-shaped connecting block and the movable groove, and grooves are arranged on the L-shaped connecting block.

[0012] As a further scheme of the utility model, the adjusting assembly comprises a control frame fixedly arranged on one side of the box body, a bidirectional threaded rod is rotatably arranged in the control frame, a motor one for driving the bidirectional threaded rod to rotate is fixedly arranged on one side of the control frame, two oppositely arranged moving blocks are sleeved on the bidirectional threaded rod, the moving blocks slidably penetrate one side of the box body, and a sleeve ring is fixedly arranged on one side of the moving block and rotatably sleeved on the corresponding clamping block.

[0013] As a further scheme of the utility model, the rotating assembly comprises a gear one fixedly sleeved on the rotating cylinder and a gear two rotatably arranged on one side of the box body, the gear one and the gear two are connected in meshing, a receiving frame is fixedly arranged on one side of the box body, and a motor two for driving the gear two to rotate is fixedly arranged on one side of the receiving frame.

[0014] As a further scheme of the utility model, the edge grinding assembly comprises a telescopic rod fixedly arranged on the top of the box body, a motor three is fixedly connected to the movable end of the telescopic rod, and a grinding disc is fixedly connected to the output shaft of the motor three.

[0015] As a further scheme of the utility model, two T-shaped sliding blocks are fixedly arranged on the top of the receiving frame and are slidably connected with the bottom of the box body.

[0016] Compared with the prior art, the utility model has the beneficial effects of:

[0017] 1、The utility model discloses a box body and a box door are arranged, thereby can make the space of polishing is closed, effectively avoid the fine metal powder and plastic debris are scattered, through the setting of the guide plate, the outlet and the receiving frame, thereby can the fine metal powder and plastic debris that appear in the polishing are scattered and are guided into the receiving frame and are collected, so that the staff handles.

[0018] 2、The utility model discloses a through the rotation of the clamping assembly upper rotation cylinder is arranged on the box, and the setting of the rotation assembly can make the circuit board be clamped, and the angle of the circuit board can be adjusted directly, and the circuit board is polished more conveniently. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings are included to provide a further understanding of the present utility model, and constitute a part of the specification, and are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute the limitation to the present utility model. In the drawings:

[0020] Figure 1 It is the whole structure schematic of the utility model kind circuit board edge polishing device Figure 1 .

[0021] Figure 2 It is the whole structure schematic of the utility model kind circuit board edge polishing device Figure 2 .

[0022] Figure 3 It is the structure schematic when the box door of the utility model kind circuit board edge polishing device is opened.

[0023] Figure 4 It is the sectional view of the utility model kind circuit board edge polishing device.

[0024] In the drawings:

[0025] 1, clamping assembly, 2, edge polishing assembly, 3, box, 4, connecting assembly, 5, adjusting assembly, 6, rotation assembly, 101, rotation cylinder, 102, sliding rod, 103, clamping block, 104, clamping rod, 201, telescopic rod, 202, motor three, 203, grinding disc, 301, box door, 302, storage frame, 303, guide plate, 401, movable slot, 402, L-shaped connecting block, 403, spring, 501, control frame, 502, bidirectional screw rod, 503, motor one, 504, moving block, 505, collar, 601, gear one, 602, gear two, 603, bearing frame, 604, motor two. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the present utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by the ordinary skill in the art without creative labor fall within the scope of the present utility model.

[0027] Please refer to Figures 1-4The utility model provides a circuit board edge grinding device, including clamping assembly 1 and edge grinding assembly 2, and clamping assembly 1 clamps circuit board, and edge grinding assembly 2 is arranged above circuit board, clamping assembly 1 can fix the position of circuit board, and edge grinding assembly 2 can polish circuit board.

[0028] Please refer to Figure 1 、 Figure 3 Clamping assembly 1 is arranged in box body 3, one side of box body 3 is hingedly provided with box door 301, and box door 301 is provided with connecting assembly 4 connected with box body 3, connecting assembly 4 includes movable slot 401 arranged on box door 301, L-shaped connecting block 402 is slidably arranged in movable slot 401, one end of L-shaped connecting block 402 movably penetrates box door 301 and is clamped in box body 3, spring 403 is fixedly arranged between L-shaped connecting block 402 and movable slot 401, and recess is arranged on L-shaped connecting block 402.L-shaped connecting block 402 and box body 3 are clamped with each other, so that the rotation of box door 301 can be braked, and spring 403 can provide thrust to L-shaped connecting block 402.

[0029] Please refer to Figures 1-4 Box body 3 is slidably provided with containing frame 302 at the bottom, two T-shaped sliding blocks are fixedly arranged at the top of containing frame 302, and the T-shaped sliding blocks are slidably connected with the bottom of box body 3, the bottom of box body 3 is provided with an opening leading to containing frame 302, a plurality of sets of guide plates 303 are fixedly arranged at the opening, each set of guide plates 303 is oppositely arranged, and an outlet is formed between each set of guide plates 303; the T-shaped sliding blocks are slidably connected with the bottom of box body 3, so that the disassembly and assembly of containing frame 302 and box body 3 can be realized, containing frame 302 is convenient for containing small metal powder and plastic debris, the inclination of guide plate 303 can guide small metal powder and plastic debris into the outlet, so that small metal powder and plastic debris can be conveniently collected.

[0030] Please refer to Figures 1-4The clamping assembly 1 includes two rotating cylinders 101 rotatably embedded on both sides of the housing 3, with the two rotating cylinders 101 arranged opposite to each other. A sliding rod 102 is slidably provided inside the rotating cylinder 101, and a clamping block 103 is fixedly connected to one end of the sliding rod 102. A plurality of threaded holes are provided on one side of the clamping block 103, and a plurality of clamping rods 104 threadedly connected to the threaded holes are provided on one side of the clamping block 103. The position of the clamping rods 104 on the clamping block 103 can be adjusted according to the model of the circuit board. An adjustment assembly 5 is provided on the other side of the housing 3 to adjust the distance between the two clamping blocks 103. The adjustment assembly 5 includes a control frame fixedly provided on one side of the housing 3. 501. A bidirectional threaded rod 502 is rotatably mounted inside the control frame 501. A motor 503 for driving the bidirectional threaded rod 502 is fixedly mounted on one side of the control frame 501. Two opposing movable blocks 504 are sleeved on the bidirectional threaded rod 502, and the movable blocks 504 slide through one side of the housing 3. The bidirectional threaded rod 502 is provided with positive and negative threads. One of the movable blocks 504 is provided with a positive thread hole for the positive thread to rotate, and the other movable block 504 is provided with a negative thread hole for the negative thread to rotate. A collar 505 is fixedly mounted on one side of the movable block 504, and the collar 505 is rotatably sleeved on the corresponding clamping block 103. When the bidirectional threaded rod 502 rotates, it can drive the two movable blocks 504 to move in opposite directions, thereby enabling the collar 505 to move. Since the collar 505 is rotatably sleeved on the corresponding clamping block 103, the clamping block 103 moves with the collar 505, causing the slide rod 102 to slide inside the rotating cylinder 101.

[0031] Please see Figure 1 , Figure 3 One side of the housing 3 is provided with a rotating assembly 6 for controlling the rotation of one of the rotating cylinders 101. The rotating assembly 6 includes a gear 601 fixedly sleeved on the rotating cylinder 101 and a gear 602 rotatably disposed on one side of the housing 3. Gear 601 and gear 602 are meshed together. A support frame 603 is fixedly disposed on one side of the housing 3, and a motor 604 for driving gear 602 to rotate is fixedly disposed on one side of the support frame 603. Gear 601 and gear 602 are meshed together. When gear 602 rotates, it can drive gear 601 to rotate, thereby driving one of the rotating cylinders 101 to rotate. Since the clamping rod 104 clamps the circuit board, it can also drive the circuit board and the other rotating cylinder 101 to rotate.

[0032] Please see Figures 1-4 The edge grinding assembly 2 is located on the top of the housing 3. The edge grinding assembly 2 includes a telescopic rod 201 fixedly mounted on the top of the housing 3. The movable end of the telescopic rod 201 is fixedly connected to a motor 202, and one end of the output shaft of the motor 202 is fixedly connected to a grinding disc 203. The telescopic rod 201 can adjust the position of the motor 202 and the grinding disc 203, and the motor 202 can drive the grinding disc 203 to rotate.

[0033] The working principle of the utility model:

[0034] When it is needed to edge the circuit board, first, the circuit board is placed between the two clamping blocks 103, then the motor one 503 is started, thereby the bidirectional threaded rod 502 is driven to rotate, the two moving blocks 504 are moved in opposite directions, the sleeve ring 505 is also moved, the clamping blocks 103 are moved to the circuit board, the clamping rods 104 clamp the circuit board, then the box door 301 is rotated, thereby the box door 301 is closed on the box body 3, before the box door 301 is closed, the L-shaped connecting block 402 needs to be moved to the direction of the spring 403, thereby the L-shaped connecting block 402 is moved into the box door 301, when the box door 301 is rotated to close the box body 3, the L-shaped connecting block 402 can be relaxed, through the elastic force of the spring 403, the L-shaped connecting block 402 is pushed, the L-shaped connecting block 402 is clamped with the box body 3, thereby the closing of the box door 301 is realized, at this time, the motor three 202 is started, thereby the grinding disc 203 is driven to rotate, then the telescopic rod 201 is started, thereby the grinding disc 203 is moved to the circuit board, thereby the circuit board is edged.

[0035] If it is needed to polish other edges of the circuit board, the motor two 604 is started, thereby the gear two 602 is driven to rotate, the gear one 601 is rotated, thereby one of the rotating cylinders 101 is rotated, the circuit board and the other rotating cylinder 101 are also rotated, thereby other edges of the circuit board are polished.

[0036] The utility model and its implementation mode are described above, the description is not limited, the shown in the drawing is only one of the implementation mode of the utility model, the actual structure is not limited to this. In general, if the ordinary skilled person in the art is inspired, without departing from the utility model creation tenet, without creative design, the structure mode and the embodiment similar to the technical scheme are all belong to the protection scope of the utility model.

Claims

1. A circuit board edge grinding device, comprising a clamping assembly (1) and an edge grinding assembly (2), and the clamping assembly (1) clamps the circuit board, and the edge grinding assembly (2) is arranged above the circuit board, characterized in that: the clamping assembly (1) is arranged in a box body (3), one side of the box body (3) is hingedly provided with a box door (301), the box door (301) is provided with a connecting assembly (4) connected with the box body (3), a receiving frame (302) is slidably arranged at the bottom of the box body (3), an opening is formed at the bottom of the box body (3) and leads to the receiving frame (302), a plurality of sets of guide plates (303) are fixedly arranged at the opening, and each set of guide plates (303) is arranged opposite to each other, and an outlet is formed between each set of guide plates (303); the clamping assembly (1) comprises two rotating cylinders (101) rotatably embedded on both sides of the box body (3), and the two rotating cylinders (101) are arranged opposite to each other, a sliding rod (102) is limitingly and slidably arranged in the rotating cylinder (101), one end of the sliding rod (102) is fixedly connected with a clamping block (103), a plurality of threaded holes are arranged on one side of the clamping block (103), a plurality of clamping rods (104) are threadedly connected with the threaded holes on one side of the clamping block (103), the other side of the box body (3) is provided with an adjusting assembly (5) for adjusting the distance between the two clamping blocks (103), and one side of the box body (3) is provided with a rotating assembly (6) for controlling the rotation of one of the rotating cylinders (101); the edge grinding assembly (2) is arranged at the top of the box body (3).

2. The edge grinding apparatus for a circuit board according to claim 1, wherein: the connecting assembly (4) comprises a movable groove (401) arranged on the box door (301), an L-shaped connecting block (402) is slidably arranged in the movable groove (401), one end of the L-shaped connecting block (402) movably penetrates the box door (301) and is clamped in the box body (3), springs (403) are fixedly arranged between the L-shaped connecting block (402) and the movable groove (401), and a recess is arranged on the L-shaped connecting block (402).

3. The edge grinding apparatus for a circuit board according to claim 1, wherein: the adjusting assembly (5) comprises a control frame (501) fixedly arranged on one side of the box body (3), a bidirectional threaded rod (502) is rotatably arranged in the control frame (501), a motor (503) is fixedly arranged on one side of the control frame (501) and drives the bidirectional threaded rod (502) to rotate, two moving blocks (504) are arranged opposite to each other and are sleeved on the bidirectional threaded rod (502), the moving blocks (504) slidably penetrate one side of the box body (3), a sleeve ring (505) is fixedly arranged on one side of the moving block (504) and rotatably sleeved on the corresponding clamping block (103).

4. The edge grinding apparatus for a circuit board according to claim 1, wherein: the rotating assembly (6) comprises a gear one (601) fixedly sleeved on the rotating cylinder (101) and a gear two (602) rotatably arranged on one side of the box body (3), the gear one (601) and the gear two (602) are meshingly connected, a receiving frame (603) is fixedly arranged on one side of the box body (3), and a motor two (604) is fixedly arranged on one side of the receiving frame (603) and drives the gear two (602) to rotate.

5. The edge grinding apparatus for a circuit board according to claim 1, wherein: The edge grinding assembly (2) comprises a telescopic rod (201) fixedly arranged at the top of the box (3), and a motor three (202) is fixedly connected to the movable end of the telescopic rod (201), and a grinding disc (203) is fixedly connected to the output shaft of the motor three (202).

6. The edge grinding apparatus for a circuit board according to claim 1, wherein: Two T-shaped sliding blocks are fixedly arranged at the top of the receiving frame (302) and are in sliding connection with the bottom of the box (3).