A burr polishing device for a circuit board processing

The burr grinding device, which automatically adjusts the direction of the circuit board by rotating and lifting components, solves the problem of low production efficiency caused by manual adjustment in circuit board processing and realizes automated and efficient grinding.

CN224544041UActive Publication Date: 2026-07-24CHANGZHOU HENGWANG VEHICLE IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU HENGWANG VEHICLE IND CO LTD
Filing Date
2025-05-07
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In the current circuit board manufacturing process, the edge sanding process requires manual adjustment of the board's spatial orientation, resulting in low production efficiency.

Method used

A burr-removing device for circuit board processing, including a rotary lifting assembly, was designed. By automatically adjusting the orientation of the circuit board to bring it closer to the grinder, automated grinding is achieved.

Benefits of technology

It improves the processing efficiency of PCB burr removal, reduces manual intervention, and increases production efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224544041U_ABST
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Abstract

The utility model discloses a kind of burr polishing devices for circuit board processing, including mounting plate, the upper end of mounting plate is fixedly installed with support table, the upper end of support table is fixedly installed with bearing seat one, the upper end of bearing seat one is fixedly installed with pulley one, the lower end of support table is fixedly installed with drive motor, the upper end of mounting plate is equipped with through hole one and through hole two, through hole one is provided with shaft, the outside of shaft is equipped with base, the upper end of base is fixedly installed with bearing seat two, the upper end of bearing seat two is fixedly installed with pulley two, pulley one and the pulley two are equipped with flat belt in wheel groove, the upper end of through hole two is fixedly installed with pneumatic cylinder, telescopic link is equipped in through hole two, one end of telescopic link is fixedly installed with connecting plate, the lower end of shaft is connected with the connecting plate bearing, the utility model has the characteristics of automatically adjusting circuit board processing direction.
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Description

Technical Field

[0001] This utility model relates to the field of circuit board processing technology, specifically to a burr removal device for circuit board processing. Background Technology

[0002] During the cutting, stamping or milling process of circuit boards, irregular defects such as burrs and rough edges are often generated on the edges. These rough edges not only affect the appearance quality of the circuit board, but may also cause electrical short circuits, assembly interference or reduce product reliability.

[0003] The existing process for grinding burrs on multiple sides of circuit boards has significant drawbacks. It requires repeated manual adjustments to the spatial orientation of the board to process each side, which severely reduces production efficiency.

[0004] Therefore, it is necessary to design a burr removal device for circuit board processing that can automatically adjust the processing direction of the circuit board. Utility Model Content

[0005] The purpose of this invention is to provide a burr removal device for circuit board processing to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a burr removal device for circuit board processing, comprising a worktable and a rotary lifting assembly, characterized in that: the rotary lifting assembly includes a mounting plate, a support platform is fixedly mounted on the upper end of the mounting plate, a bearing seat is fixedly mounted on the upper end of the support platform, the bearing seat has a groove, a bearing is fixedly mounted in the groove of the bearing seat, a pulley is fixedly mounted on the upper end of the bearing seat, and a drive motor is fixedly mounted on the lower end of the support platform, the drive motor being fixedly connected to the pulley, which enables automatic steering of the burrs on the circuit board during processing, improving processing efficiency.

[0007] According to the above technical solution, the upper end of the mounting plate is provided with a through hole, the center of the through hole is on the same straight line as the center of the pulley, a rotating shaft is placed in the through hole, a base is sleeved on the outside of the rotating shaft, a bearing seat is fixedly installed on the upper end of the base, the bearing seat is provided with a groove, a bearing is fixedly installed in the groove of the bearing seat, and a pulley is fixedly installed on the upper end of the bearing seat.

[0008] According to the above technical solution, a flat belt is fitted inside the grooves of pulley one and pulley two.

[0009] According to the above technical solution, the upper end of the mounting plate is provided with a second through hole, the center line of the second through hole and the first through hole is perpendicular to the center line of the first through hole and the first pulley, a pneumatic cylinder is fixedly installed at the upper end of the second through hole, a telescopic rod is sleeved inside the second through hole, the telescopic rod is fixedly connected to the pneumatic cylinder, a connecting plate is fixedly installed at the end of the telescopic rod away from the mounting plate, the connecting plate is provided with a bearing hole, and the lower end of the rotating shaft is fixedly installed in the bearing hole of the connecting plate through a bearing.

[0010] According to the above technical solution, the upper end bearing of the rotating shaft is connected to a fixed plate, and several support members are fixedly installed along the wide side of the fixed plate. A hydraulic cylinder is fixedly installed at the upper end of the support member, and a fixed rod is fixedly installed at the lower end of the support member.

[0011] According to the above technical solution, a rectangular through groove is provided at the upper end of the workbench one, and a grinding machine is fixedly installed at the upper end of the workbench one. The main structure of the grinding machine has a processing platform extending forward from the top. A blade is connected to the front end of the platform by bolts. The cutting part of the blade is positioned in the rectangular through groove of the workbench one. A baffle is fixedly installed at the upper end of the workbench one. The side of the baffle away from the rectangular through groove is in contact with the lower half of the grinding machine.

[0012] According to the above technical solution, a second workbench is fixedly installed on the support column of the first workbench. A rectangular through groove is machined on the upper end of the second workbench. A groove is opened on the inner side of the rectangular through groove along the length direction. A mounting plane is machined on one side edge of the second workbench. The mounting plane is perpendicular to the upper end face of the second workbench. A hydraulic push rod is fixedly installed on the mounting plane of the second workbench. The rotary lifting assembly is fixedly connected to the end of the hydraulic push rod away from the mounting plane of the second workbench.

[0013] According to the above technical solution, the mounting plate is fixedly connected to the hydraulic push rod, and the two ends of the mounting plate along the length direction are fitted with the grooves of the second worktable with clearance.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are: by setting a rotating lifting component, this utility model can automatically adjust the direction of the burrs to be ground on the circuit board to be closer to the grinding machine during the processing, which effectively improves the processing efficiency. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the rotating lifting component structure of this utility model; Figure 3 This is a schematic diagram of the structure of the grinding machine of this utility model; Figure 4 This is a schematic diagram of the mounting plate structure of this utility model; In the diagram: 1. Workbench 1; 2. Workbench 2; 3. Grinding machine; 4. Blade; 5. Baffle; 6. Hydraulic push rod; 7. Mounting plate; 8. Pneumatic cylinder; 9. Drive motor; 10. Support platform; 11. Bearing seat 1; 12. Bearing seat 2; 13. Pulley 1; 14. Pulley 2; 15. Flat belt; 16. Shaft; 17. Connecting plate; 18. Telescopic rod; 19. Fixing plate; 20. Support component; 21. Hydraulic cylinder; 22. Fixing rod; 23. Base; 24. Through hole 1; 25. Through hole 2; 26. Groove. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-4 The present invention provides a technical solution: a burr removal device for circuit board processing, including a worktable 1, a rectangular through groove is provided at the upper end of the worktable 1, and a polishing machine 3 is fixedly installed at the upper end of the worktable 1.

[0018] The main structure of the grinder 3 has a forward-extending processing platform at the top. The front end of the platform is connected to the blade 4 by bolts. The cutting part of the blade 4 is positioned in the rectangular through groove of the worktable 1. A baffle 5 is fixedly installed on the upper end of the worktable 1. The side of the baffle 5 away from the rectangular through groove is in contact with the lower half of the grinder 3.

[0019] Workbench 2 is fixedly installed on the support of workbench 1. A rectangular through groove is machined on the upper end of workbench 2. A groove 26 is opened on the inner side of the rectangular through groove along the length direction. A mounting plane is machined on one side edge of workbench 2. The mounting plane is perpendicular to the upper end face of workbench 2.

[0020] A hydraulic push rod 6 is fixedly installed on the mounting plane of workbench 2. A rotary lifting assembly is fixedly connected to the end of the hydraulic push rod 6 away from the mounting plane of workbench 2.

[0021] The rotary lifting assembly includes a mounting plate 7, which is fixedly connected to a hydraulic push rod 6. Both ends of the mounting plate 7 along its length are fitted with the grooves of the worktable 2.

[0022] A support platform 10 is fixedly installed on the upper end of the mounting plate 7. A bearing seat 11 is fixedly installed on the upper end of the support platform 10. The bearing seat 11 has a groove. A bearing is fixedly installed in the groove of the bearing seat 11. A pulley 13 is fixedly installed on the upper end of the bearing seat 11. A drive motor 9 is fixedly installed on the lower end of the support platform 10. The drive motor 9 is fixedly connected to the pulley 13.

[0023] The upper end of the mounting plate 7 has a through hole 24. The center of the through hole 24 is on the same straight line as the center of the pulley 13. A rotating shaft 16 is placed in the through hole 24. A base 23 is sleeved on the outside of the rotating shaft 16. A bearing seat 12 is fixedly installed on the upper end of the base 23. The bearing seat 12 has a groove. A bearing is fixedly installed in the groove of the bearing seat 12. A pulley 14 is fixedly installed on the upper end of the bearing seat 12. A flat belt 15 is sleeved in the groove of the pulley 13 and the pulley 14.

[0024] The upper end of the mounting plate 7 has a second through hole 25. The center line of the second through hole 25 and the first through hole 24 is perpendicular to the center line of the first through hole 24 and the first pulley 13. A pneumatic cylinder 8 is fixedly installed at the upper end of the second through hole 25. A telescopic rod 18 is sleeved inside the second through hole 25. The telescopic rod 18 is fixedly connected to the pneumatic cylinder 8. A connecting plate 17 is fixedly installed at the end of the telescopic rod 18 away from the mounting plate 7. The connecting plate 17 has a bearing hole. The lower end of the rotating shaft 16 is fixedly installed in the bearing hole of the connecting plate 17 through a bearing.

[0025] The upper end bearing of the rotating shaft 16 is connected to a fixing plate 19. Several support members 20 are fixedly installed along the wide side of the fixing plate 19. A hydraulic cylinder 21 is fixedly installed at the upper end of the support member 20, and a fixing rod 22 is fixedly installed at the lower end of the support member 20.

[0026] Working principle: Before starting the work, the upper surface of the fixing plate 19 is parallel to the upper surface of the workbench 1. The circuit board to be ground is placed on the upper surface of the fixing plate 19. Any side of the circuit board to be ground is brought close to the baffle 5. After the circuit board is placed, the hydraulic cylinder 21 drives the fixing rod 22 to move downward until it contacts the upper end of the circuit board, thus fixing the circuit board.

[0027] Start the hydraulic push rod 6, which extends outward and pushes the mounting plate 7 toward the grinder 3. The mounting plate 7 drives the rotating shaft 16 toward the grinder 3, which in turn drives the fixing plate 19 toward the grinder 3. The fixing plate 19 then drives the circuit board toward the grinder 3, and the blade 4 finishes grinding the burrs on the circuit board.

[0028] After the burrs on the circuit board are ground, the hydraulic push rod 6 is reset, which pulls the mounting plate 7 to reset. The pneumatic cylinder 8 is activated, which drives the telescopic rod 18 to retract upward. The telescopic rod 18 drives the connecting plate 17 to move upward, which drives the rotating shaft 16 to move upward. The rotating shaft 16 drives the fixed plate 19 to move upward until the lower end of the fixed plate 19 is higher than the upper end of the baffle 5. The pneumatic cylinder 8 is then closed, and the drive motor 9 is activated. The drive motor 9 drives the pulley 13 to rotate, which drives the flat belt 15 to rotate. The flat belt 15 drives the pulley 14 to rotate, which drives the fixed plate 19 to rotate. The fixed plate 19 drives the circuit board to rotate until the burrs on the other side of the circuit board are close to the baffle.

[0029] Turn off the drive motor 9 and start the pneumatic cylinder 8. The pneumatic cylinder 8 drives the telescopic rod 18 to extend downward. The telescopic rod 18 drives the connecting plate 17 to move downward. The connecting plate 17 drives the rotating shaft 16 to move downward. The rotating shaft 16 drives the fixed plate 18 to move downward until the upper surface of the fixed plate 19 is parallel to the upper surface of the worktable 1.

[0030] Turn off the drive motor 9, start the hydraulic push rod 6, the hydraulic push rod 6 extends outward, the hydraulic push rod 6 pushes the mounting plate 7 to move closer to the grinder 3, the mounting plate 7 drives the rotating shaft 16 to move closer to the grinder 3, the rotating shaft 16 drives the fixing plate 19 to move closer to the grinder 3, the fixing plate 19 drives the circuit board to move closer to the grinder 3, the blade 4 completes the grinding of the burrs on the other side of the circuit board, realizing the function of automatically adjusting the processing direction of the circuit board, and improving the processing efficiency of the circuit board.

[0031] It should be added that the grinding machine 3 is existing technology, so we will not go into too much detail.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A burr-removing device for circuit board processing, comprising a worktable (1) and a rotary lifting assembly, characterized in that: The rotating lifting assembly includes a mounting plate (7), a support platform (10) is fixedly mounted on the upper end of the mounting plate (7), a bearing seat (11) is fixedly mounted on the upper end of the support platform (10), the bearing seat (11) has a groove, a bearing is fixedly mounted in the groove of the bearing seat (11), a pulley (13) is fixedly mounted on the upper end of the bearing seat (11), and a drive motor (9) is fixedly mounted on the lower end of the support platform (10), the drive motor (9) is fixedly connected to the pulley (13).

2. The burr removal device for circuit board processing according to claim 1, characterized in that: The upper end of the mounting plate (7) is provided with a through hole (24), the center of the through hole (24) is on the same straight line as the center of the pulley (13), a rotating shaft (16) is placed in the through hole (24), a base (23) is sleeved on the outside of the rotating shaft (16), a bearing seat (12) is fixedly installed on the upper end of the base (23), the bearing seat (12) is provided with a groove, a bearing is fixedly installed in the groove of the bearing seat (12), and a pulley (14) is fixedly installed on the upper end of the bearing seat (12).

3. The burr removal device for circuit board processing according to claim 2, characterized in that: A flat belt (15) is fitted inside the groove of the first pulley (13) and the second pulley (14).

4. The burr removal device for circuit board processing according to claim 3, characterized in that: The upper end of the mounting plate (7) is provided with a second through hole (25). The center line of the second through hole (25) and the first through hole (24) is perpendicular to the center line of the first through hole (24) and the first pulley (13). A pneumatic cylinder (8) is fixedly installed at the upper end of the second through hole (25). A telescopic rod (18) is sleeved inside the second through hole (25). The telescopic rod (18) is fixedly connected to the pneumatic cylinder (8). A connecting plate (17) is fixedly installed at the end of the telescopic rod (18) away from the mounting plate (7). The connecting plate (17) is provided with a bearing hole. The lower end of the rotating shaft (16) is fixedly installed in the bearing hole of the connecting plate (17) through a bearing.

5. The burr-removing device for circuit board processing according to claim 3, characterized in that: The upper end bearing of the rotating shaft (16) is connected to a fixed plate (19), and a number of support members (20) are fixedly installed on the fixed plate (19) along its wide side. A hydraulic cylinder (21) is fixedly installed on the upper end of the support member (20), and a fixed rod (22) is fixedly installed on the lower end of the support member (20).

6. The burr-removing device for circuit board processing according to claim 3, characterized in that: The upper end of the workbench (1) is provided with a rectangular through groove. A grinder (3) is fixedly installed on the upper end of the workbench (1). The main structure of the grinder (3) extends forward to form a processing platform. The front end of the platform is connected to a blade (4) by bolts. The cutting part of the blade (4) is positioned in the rectangular through groove of the workbench (1). A baffle (5) is fixedly installed on the upper end of the workbench (1). The side of the baffle (5) away from the rectangular through groove is in contact with the lower half of the grinder (3).

7. The burr-removing device for circuit board processing according to claim 6, characterized in that: Workbench 2 (2) is fixedly installed on the support of workbench 1 (1). A rectangular through groove is machined on the upper end of workbench 2 (2). A groove (26) is opened on the inner side of the rectangular through groove along the length direction. An installation plane is machined on one side edge of workbench 2 (2). The installation plane is perpendicular to the upper end face of workbench 2 (2). A hydraulic push rod (6) is fixedly installed on the installation plane of workbench 2 (2). The rotary lifting assembly is fixedly connected to the end of the hydraulic push rod (6) away from the installation plane of workbench 2 (2).

8. The burr-removing device for circuit board processing according to claim 7, characterized in that: The mounting plate (7) is fixedly connected to the hydraulic push rod (6), and the two ends of the mounting plate (7) along the length direction are in clearance fit with the groove (26) of the worktable (2).