Edge grinding device for circuit board processing

By employing a dual-sided synchronous grinding and automatic adjustment mechanism, the problems of low efficiency and inconvenient maintenance of existing circuit board edge grinding devices have been solved, achieving efficient and precise circuit board edge grinding processing.

CN224196543UActive Publication Date: 2026-05-05HUIZHOU CHAMPION ASIA PRECISION CIRCUIT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUIZHOU CHAMPION ASIA PRECISION CIRCUIT CO LTD
Filing Date
2025-05-26
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing edge grinding devices for circuit board processing suffer from low grinding efficiency, insufficient adjustment precision, and inconvenient disassembly of the sanding belt, which affect processing efficiency and equipment maintenance efficiency.

Method used

It adopts a double-sided synchronous grinding structure, combined with an automatic adjustment mechanism and a detachable design, to achieve precise positioning and quick replacement of the sanding belt. The grinding efficiency and quality are improved by using a drive motor and shock absorber.

Benefits of technology

It improves edge grinding efficiency and product quality, simplifies operation procedures, reduces labor and time costs, and ensures processing continuity and equipment maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an edging device for circuit board processing, which relates to the technical field of circuit board processing and comprises a bottom plate, baffles are arranged in the middle and on two sides of the lower portion of the bottom plate, two groups of movable sleeves are sleeved on the outer side of the bottom plate, bosses are arranged at the bottoms of the movable sleeves, adjusting mechanisms are arranged in the bosses, and mounting frames are arranged at the tops of the movable sleeves. A detachable fixing plate is arranged on the side face of the mounting frame, multiple sets of through grooves are formed in the two sides in the mounting frame and the fixing plate, damping sliding blocks are arranged in the through grooves, transmission rollers are arranged on the side faces of the sliding blocks and located in the mounting frame, the outer sides of the transmission rollers are sleeved with abrasive belts, and a protection box is arranged on the outer side of the mounting frame and located on the top of the bottom plate. According to the double-side edge grinding device, double-side synchronous grinding and precise adjustment of the grinding abrasive belt are adopted, and the machining efficiency and precision of the edge grinding device are effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of circuit board processing technology, and in particular to an edge grinding device for circuit board processing. Background Technology

[0002] In modern electronics manufacturing, circuit boards are the basic components of electronic devices. Their quality and precision directly affect the performance and reliability of the final product. In the production process of circuit boards, edge grinding is a crucial step. It not only affects the appearance of the circuit board, but also directly affects the dimensional accuracy, edge smoothness, and subsequent assembly. However, the existing edge grinding device for circuit board processing has some shortcomings in its structural design, which limits its performance in practical applications.

[0003] Most existing equipment uses a single-sided grinding method, resulting in low processing efficiency and difficulty in meeting the needs of mass production. Secondly, in existing equipment, the adjustment of the grinding belt often relies on manual operation, which makes it difficult to guarantee the adjustment accuracy and is cumbersome, thus reducing processing efficiency. At the same time, the grinding belt is a vulnerable part in the edge grinding device and needs to be replaced regularly. However, the disassembly process of the grinding belt in existing equipment is often quite complicated, requiring a lot of time and effort, which affects the maintenance efficiency of the equipment and the continuity of processing. Utility Model Content

[0004] The present invention proposes a grinding device for circuit board processing, which solves the problems of low grinding efficiency, insufficient adjustment accuracy and inconvenient disassembly of the sanding belt in existing grinding devices for circuit board processing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A grinding device for circuit board processing includes a base plate, with baffles provided at the lower center and both sides of the base plate. Two sets of movable sleeves are fitted on the outer side of the base plate. A boss is provided at the bottom of each movable sleeve, and an adjustment mechanism is provided inside the boss. A mounting frame is provided at the top of each movable sleeve, and a detachable fixing plate is provided on the side of the mounting frame. Multiple sets of through grooves are provided on both sides of the inside of the mounting frame and the fixing plate, and shock-absorbing sliders are provided inside the through grooves. A transmission roller is provided on the side of the slider inside the mounting frame, and an abrasive belt is fitted on the outside of the transmission roller. A protective box is provided on the outside of the mounting frame at the top of the base plate, and an adjustable clamping mechanism is provided at the bottom inside the protective box.

[0007] Preferably, mounting bases are provided on both sides below the base plate, and the mounting bases are provided with multiple sets of mounting holes.

[0008] Preferably, the adjustment mechanism includes a lead screw, a first drive motor, and a placement seat. The bottom of the baffle is provided with a placement seat, the top of the placement seat is provided with a first drive motor, and the lead screw is provided inside the boss. The output end of the first drive motor is connected to the lead screw, and the other end of the lead screw is embedded in the baffle in a movable connection.

[0009] Preferably, the mounting frame has an inspection port on its side, and the inspection port and the inside of the fixing plate have matching threaded holes. The outside of the fixing plate is connected to the threaded holes inside the inspection port by bolts.

[0010] Preferably, the through groove has slides on both sides that match the slider, and a shock absorber is provided inside the through groove. The shock absorber is connected to the slider, and a second drive motor is provided on the outside of the slider. The output end of the second drive motor is connected to the transmission roller.

[0011] Preferably, the clamping mechanism includes a bearing with a seat, a first electric telescopic rod, a second electric telescopic rod, a third drive motor, a fixed seat, a first clamping plate, a second clamping plate, and a rubber pad. The first electric telescopic rod is connected to the lower part of the protective box through the bearing with a seat, and a first clamping plate is provided at the bottom of the first electric telescopic rod.

[0012] Preferably, a fixed seat is provided in the middle of the base plate, and a second electric telescopic rod is provided inside the fixed seat. A third drive motor is provided at the top of the second electric telescopic rod, and a second clamping plate is provided at the output end of the third drive motor. Rubber pads are provided on the sides of both the first clamping plate and the second clamping plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This edge grinding device for circuit board processing has two sets of movable sleeves fitted on the outer side of the base plate. A transmission roller is installed on the side of the slider inside the mounting frame, and an abrasive belt is fitted on the outer side of the transmission roller. To improve edge grinding efficiency, a double-sided synchronous grinding structure is adopted, which can grind both sides of the circuit board at the same time. At the same time, in conjunction with a third drive motor, the first clamping plate and the second clamping plate are driven, and the angle of the clamped circuit board can be adjusted. This optimization not only shortens the processing time, but also ensures that the grinding degree of both sides is consistent, improving product quality. In addition, double-sided synchronous grinding can also effectively reduce energy consumption and labor costs, and improve overall processing efficiency.

[0015] 2. A boss is provided at the bottom of the movable sleeve, and a lead screw is installed inside the boss. The output end of the first drive motor is connected to the lead screw. The first drive motor drives the lead screw to rotate, thereby realizing the movement of the movable sleeve and the mounting frame on the outside of the base plate. This enables precise positioning and adjustment of the sanding belt. This automatic adjustment method not only improves the adjustment accuracy but also simplifies the operation process, reduces the difficulty of operation and labor costs, and further improves the processing accuracy and efficiency. Secondly, a shock absorber is installed inside the through groove. The shock absorption effect of the shock absorber can ensure flexible contact between the sanding belt and the circuit board, enabling adaptive sanding and helping to improve the edge grinding quality.

[0016] 3. The mounting frame has a detachable fixing plate on the side. The outer side of the fixing plate is connected to the threaded hole inside the inspection port by bolts. To facilitate the disassembly and replacement of the sanding belt, the fixing plate can be quickly disassembled to open the inspection port by bolts. This design not only simplifies the disassembly process, but also improves the maintenance efficiency and processing continuity of the equipment. At the same time, it also facilitates the replacement of vulnerable parts such as sanding belts, reduces replacement costs and time costs, and helps to improve the efficiency of edge grinding. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective.

[0019] Figure 3 This is a schematic diagram of the exploded structure of this utility model.

[0020] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0021] Figure 5 This is a schematic diagram of the clamping mechanism of this utility model.

[0022] Figure 6 This utility model Figure 5 Enlarged view of section B in the middle.

[0023] Labels in the diagram: 1. Base plate; 2. Baffle; 3. Movable sleeve; 4. Boss; 5. Mounting frame; 6. Fixing plate; 7. Through groove; 9. Slider; 10. Transmission roller; 11. Sanding belt; 12. Protective box; 13. Mounting seat; 14. Mounting hole; 15. Lead screw; 16. First drive motor; 17. Placement seat; 18. Slide rail; 19. Shock absorber; 20. Second drive motor; 21. Bearing with seat; 22. First electric telescopic rod; 23. Second electric telescopic rod; 24. Third drive motor; 25. Fixing seat; 26. First clamping plate; 27. Second clamping plate; 28. Rubber pad; 29. ​​Inspection port; 30. Threaded hole; 31. Bolt. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Reference Figures 1-6 This utility model provides a technical solution: a grinding device for circuit board processing, including a base plate 1, baffles 2 are provided at the lower center and both sides of the base plate 1, and two sets of movable sleeves 3 are sleeved on the outer side of the base plate 1. The bottom of the movable sleeves 3 is provided with a boss 4, and an adjustment mechanism is provided inside the boss 4. The top of the movable sleeves 3 is provided with a mounting frame 5, and a detachable fixing plate 6 is provided on the side of the mounting frame 5. Multiple sets of through grooves 7 are provided on both sides inside the mounting frame 5 and shock-absorbing sliders 9 are provided inside the through grooves 7. The side of the slider 9 is located inside the mounting frame 5 and a transmission roller 10 is provided, and a sanding belt 11 is sleeved on the outer side of the transmission roller 10. A protective box 12 is provided on the outer side of the mounting frame 5 and on the top of the base plate 1. The protective box 12 can effectively prevent grinding waste from splashing and ensure safety during the grinding process. An adjustable clamping mechanism is provided at the bottom of the protective box 12.

[0027] Reference Figure 3 , Figure 4 The base plate 1 has mounting seats 13 on both sides below it, and the mounting seats 13 have multiple sets of mounting holes 14 inside. The through groove 7 has slides 18 on both sides that match the slider 9, and the through groove 7 has shock absorbers 19 inside it. The shock absorbers 19 are connected to the slider 9. By utilizing the shock absorption effect of the shock absorbers 19, the sanding belt 11 can be in flexible contact with the circuit board for adaptive grinding, which helps to improve the edge grinding quality. The slider 9 has a second drive motor 20 on its outer side, and the output end of the second drive motor 20 is connected to the transmission roller 10.

[0028] Reference Figure 5 , Figure 6 The clamping mechanism includes a bearing 21, a first electric telescopic rod 22, a second electric telescopic rod 23, a third drive motor 24, a fixed base 25, a first clamping plate 26, a second clamping plate 27, and a rubber pad 28. The first electric telescopic rod 22 is connected to the lower part of the protective box 12 via the bearing 21. The first electric telescopic rod 22 has a first clamping plate 26 at its bottom. The fixed base 25 is located in the middle of the base plate 1, and the second electric telescopic rod 23 is located inside the fixed base 25. The third drive motor 24 is located at the top of the second electric telescopic rod 23, and the second clamping plate 27 is located at the output end of the third drive motor 24. Rubber pads 28 are provided on the sides of both the first clamping plate 26 and the second clamping plate 27 to reduce accidental damage to the circuit board during clamping.

[0029] In specific implementation, a circuit board processing edge grinding device is used. First, the edge grinding device is installed on the machine tool through the mounting hole 14 inside the mounting base 13. Then, the circuit board to be edged is placed on top of the second clamping plate 27. The first electric telescopic rod 22 and the second electric telescopic rod 23 are activated, and the first clamping plate 26 and the second clamping plate 27 are extended and retracted respectively, clamping the circuit board to be edged. Next, the second drive motor 20 is activated, which drives the transmission roller 10 to rotate, thereby realizing that the sanding belt 11 follows the high-speed rotation of the transmission roller 10 to edge the circuit board. At the same time, the third drive motor 24 is activated, which drives the clamped circuit board to adjust the angle through the bearing 21, which helps to improve processing efficiency and product quality. In addition, the protective box 12 on the top of the base plate 1 ensures safety during the edge grinding process. Through the above operation, not only is the processing time shortened, but the degree of edge grinding on both sides is also ensured to be consistent, improving product quality and ensuring safety.

[0030] Example 2

[0031] Reference Figure 1 , Figure 2 This embodiment is an optimization based on Embodiment 1. The adjustment mechanism includes a lead screw 15, a first drive motor 16, and a placement seat 17. The bottom of the baffle 2 is provided with the placement seat 17, the top of the placement seat 17 is provided with the first drive motor 16, and the lead screw 15 is provided inside the boss 4. The output end of the first drive motor 16 is connected to the lead screw 15, and the other end of the lead screw 15 is embedded in the baffle 2 in a movable connection. The side of the mounting frame 5 is provided with an inspection port 29, and the inspection port 29 and the inside of the fixing plate 6 are provided with matching threaded holes 30. The outside of the fixing plate 6 is connected to the threaded holes 30 inside the inspection port 29 by bolts 31, which facilitates the disassembly and replacement of the sanding belt 11 and helps to improve the efficiency of edge grinding.

[0032] In specific implementation, a grinding device for circuit board processing, when the grinding device is adjusted and maintained, firstly, the first drive motor 16 is started, and the first drive motor 16 drives the lead screw 15 to rotate, thereby realizing the movement of the movable sleeve 3 and the mounting frame 5 on the outside of the base plate 1, and then realizing the precise positioning and adjustment of the grinding belt 11. At the same time, a shock absorber 19 is set inside the through groove 7. The shock absorption effect of the shock absorber 19 can ensure that the grinding belt 11 is in flexible contact with the circuit board and perform adaptive grinding, which helps to improve the grinding quality. After a period of use, when the grinding device needs to be maintained, the bolt 31 inside the threaded hole 30 is manually unscrewed to facilitate the disassembly of the fixing plate 6 and the opening of the inspection port 29, thereby facilitating the replacement of the easily damaged part, the grinding belt 11. Similarly, the bolt 31 is screwed into the threaded hole 30 to facilitate the installation of the fixing plate 6. Through the above operations, the automatic adjustment method can not only improve the adjustment accuracy, but also simplify the operation process, reduce the operation difficulty and labor costs, and further improve the processing accuracy and efficiency. At the same time, it not only simplifies the disassembly process, but also improves the maintenance efficiency and processing continuity of the equipment.

[0033] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A grinding device for processing circuit boards, comprising a base plate (1), characterized in that, The bottom plate (1) is provided with baffles (2) at the bottom center and on both sides. Two sets of movable sleeves (3) are sleeved on the outside of the bottom plate (1). The bottom of the movable sleeve (3) is provided with a boss (4). An adjustment mechanism is provided inside the boss (4). The top of the movable sleeve (3) is provided with a mounting frame (5). A detachable fixing plate (6) is provided on the side of the mounting frame (5). Multiple sets of through grooves (7) are provided on both sides inside the mounting frame (5) and the fixing plate (6). A shock-absorbing slider (9) is provided inside the through groove (7). A transmission roller (10) is provided on the side of the slider (9) inside the mounting frame (5). A sanding belt (11) is sleeved on the outside of the transmission roller (10). A protective box (12) is provided on the outside of the mounting frame (5) at the top of the bottom plate (1). An adjustable clamping mechanism is provided inside the lower part of the protective box (12).

2. The edge grinding device for circuit board processing according to claim 1, characterized in that, The base plate (1) is provided with mounting bases (13) on both sides below, and the mounting bases (13) are provided with multiple sets of mounting holes (14).

3. The edge grinding device for circuit board processing according to claim 1, characterized in that, The adjustment mechanism includes a lead screw (15), a first drive motor (16), and a placement seat (17). The bottom of the baffle (2) is provided with a placement seat (17), the top of the placement seat (17) is provided with a first drive motor (16), and the lead screw (15) is provided inside the boss (4). The output end of the first drive motor (16) is connected to the lead screw (15), and the other end of the lead screw (15) is embedded in the baffle (2) in a movable connection.

4. The edge grinding device for circuit board processing according to claim 1, characterized in that, The mounting frame (5) has an inspection port (29) on its side, and the inspection port (29) and the fixing plate (6) have matching threaded holes (30) inside. The outside of the fixing plate (6) is connected to the threaded hole (30) inside the inspection port (29) by bolts (31).

5. The edge grinding device for circuit board processing according to claim 1, characterized in that, The through groove (7) has slides (18) on both sides that match the slider (9), and a shock absorber (19) is provided inside the through groove (7). The shock absorber (19) is connected to the slider (9), and a second drive motor (20) is provided on the outside of the slider (9). The output end of the second drive motor (20) is connected to the transmission roller (10).

6. The edge grinding device for circuit board processing according to claim 1, characterized in that, The clamping mechanism includes a seated bearing (21), a first electric telescopic rod (22), a second electric telescopic rod (23), a third drive motor (24), a fixed seat (25), a first clamping plate (26), a second clamping plate (27), and a rubber pad (28). The first electric telescopic rod (22) is connected to the lower part of the protective box (12) through the seated bearing (21), and the first clamping plate (26) is provided at the bottom of the first electric telescopic rod (22).

7. The edge grinding device for circuit board processing according to claim 6, characterized in that, A fixed seat (25) is provided in the middle of the base plate (1), and a second electric telescopic rod (23) is provided inside the fixed seat (25). A third drive motor (24) is provided at the top of the second electric telescopic rod (23), and a second clamping plate (27) is provided at the output end of the third drive motor (24). Rubber pads (28) are provided on the sides of both the first clamping plate (26) and the second clamping plate (27).