Polishing device for communication server printed board production
By designing a streamlined conveyor belt and polishing track, combined with infrared sensors and motor control, automated polishing of the printed circuit board sides has been achieved, solving the problem of low burr removal efficiency in existing technologies and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- VABAEL ELECTRONIC TECH CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-04-28
AI Technical Summary
The existing printed circuit board requires sequential sanding of the sides, resulting in low burr removal efficiency and affecting production efficiency.
Design a grinding device for the production of printed circuit boards for communication servers. It adopts an assembly line conveyor belt and grinding track, combined with infrared sensors and motor control, to realize the automated movement and grinding of printed circuit boards. The grinding blocks simultaneously process the sides of the printed circuit boards.
It enables rapid removal of burrs from printed circuit boards, improves production efficiency, and avoids the inefficiency of sequential sanding.
Smart Images

Figure CN224169415U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of printed circuit board manufacturing technology, and more specifically, to a grinding device for manufacturing printed circuit boards for communication servers. Background Technology
[0002] Printed circuit boards (PCBs) play a crucial role in communication servers. As the carrier of various electronic components, chips, and connecting lines inside the server, they ensure that they can work properly and communicate effectively. During the production process, PCBs may have burrs on their sides. In order to remove the adverse effects of burrs, the sides of the PCB need to be polished.
[0003] When performing edge sanding on existing printed circuit boards, the burrs on the sides need to be sanded sequentially according to the sanding order, resulting in low efficiency in burr removal and thus affecting the production efficiency of printed circuit boards.
[0004] Based on this, a grinding device for the production of printed circuit boards for communication servers is proposed. Summary of the Invention
[0005] The main objective of this invention is to provide a polishing device for the production of printed circuit boards for communication servers, so as to overcome the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides a grinding device for the production of printed circuit boards for communication servers, including a worktable. The triangular surfaces on the upper surface of the worktable are provided with an "L"-shaped channel. A support shaft is fixedly installed at one end of the vertical end and one end of the horizontal end of the channel, and a movable shaft is movably installed at the other end of the vertical end and one end of the horizontal end of the channel. A motor is fixedly installed at one end of the movable shaft.
[0007] The channel has a first grinding rail symmetrically arranged on both sides of its horizontal end upper surface, and a second grinding rail symmetrically arranged on both sides of its vertical end upper surface. A grinding groove is formed in the middle of the inner side of both the first and second grinding rails. An adjustment handle is inserted through the middle of the upper surface of both the first and second grinding rails. The output end of the adjustment handle extends into the grinding groove. A grinding block is fixedly installed on the inner bottom surface of the grinding groove and the output end of the adjustment handle. An infrared sensor is fixedly installed on one end of the inner bottom surface of the vertical end of the grinding groove. The infrared sensor is fixedly connected to the second grinding rail.
[0008] Movable rollers are fitted onto the outer surfaces of both the movable shaft and the support shaft. A first conveyor belt is fitted onto the outer surfaces of the movable rollers at the transverse end. Several limiting plates are uniformly fixed on the outer surface of the first conveyor belt. A second conveyor belt is fitted onto the outer surfaces of the movable rollers at the vertical end. Several push plates are uniformly fixed on the outer surface of the second conveyor belt.
[0009] As a further improvement of this utility model, a fixing frame is fixedly installed on the outer surface of the motor, the fixing frame is fixedly connected to the outer surface of the workbench, and a control console is fixedly installed on one corner of the upper surface of the workbench.
[0010] As a further improvement of this utility model, locking screw rings are movably installed on both sides of the middle part of the upper surface of the first grinding rail and the second grinding rail via bearings, and the locking screw rings are spirally sleeved on the outer surface of the adjusting handle.
[0011] As a further improvement of this utility model, the movable roller sleeved on the outer surface of the movable shaft is in a fixed sleeved connection state, and the movable roller sleeved on the outer surface of the support shaft is in a movable sleeved connection state.
[0012] As a further improvement of this utility model, the infrared sensor is connected to the control console via a wire, and the motor is connected to the control console via a wire.
[0013] The beneficial effects of this utility model are: This utility model can control the printed circuit board to move and polish to complete the removal of burrs, thereby achieving the effect of rapid burr removal through flowing polishing, avoiding the phenomenon of polishing sequentially according to the edge sequence, which is conducive to improving the efficiency of burr removal and further improving the production efficiency of printed circuit boards. Attached Figure Description
[0014] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:
[0015] Figure 1 This is a front three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a schematic diagram of the disassembled workbench structure of this utility model;
[0017] Figure 3 This is a schematic diagram showing the disassembled structure of the first grinding rail of this utility model;
[0018] Figure 4 This is a schematic diagram showing the disassembled structure of the second grinding rail of this utility model;
[0019] Figure 5 This is a schematic diagram showing the disassembled structure of the first conveyor belt of this utility model.
[0020] In the diagram: 1. Workbench; 101. Channel; 102. Support shaft; 103. Motor; 104. Fixing frame; 105. Control console; 106. Movable shaft; 2. First grinding rail; 201. Grinding groove; 202. Grinding block; 203. Adjusting handle; 204. Locking screw ring; 3. Second grinding rail; 301. Infrared sensor; 4. Movable roller; 5. First conveyor belt; 501. Limiting plate; 6. Second conveyor belt; 601. Push plate. Detailed Implementation
[0021] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.
[0022] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0023] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of the utility model described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0024] To make the objectives and advantages of this utility model clearer, the utility model will be further described below with reference to the embodiments; it should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.
[0025] Please see Figures 1-5As shown, a polishing device for producing printed circuit boards for communication servers includes a workbench 1. An "L"-shaped channel 101 is formed on the triangular part of the upper surface of the workbench 1. A support shaft 102 is fixedly installed at one end of the vertical end and one end of the horizontal end of the channel 101. A movable shaft 106 is movably installed at the other end of the vertical end and one end of the horizontal end of the channel 101. A motor 103 is fixedly installed at one end of the movable shaft 106. A fixing frame 104 is fixedly installed on the outer surface of the motor 103. The fixing frame 104 is fixedly connected to the outer surface of the workbench 1. A control console 105 is fixedly installed at one corner of the upper surface of the workbench 1.
[0026] It should be noted that the operation process of motor 103 can be set through console 105. Motor 103 can control the movable shaft 106 to rotate clockwise and counterclockwise. The clockwise and counterclockwise rotation of movable shaft 106, in conjunction with movable roller 4, controls the corresponding first conveyor belt 5 and second conveyor belt 6 to run, so as to achieve the effect of continuous conveying of printed circuit boards.
[0027] The upper surface of the channel 101 at the horizontal end is symmetrically provided with a first grinding rail 2 on both sides, and the upper surface of the channel 101 at the vertical end is symmetrically provided with a second grinding rail 3 on both sides. A grinding groove 201 is opened in the middle of the inner side of the first grinding rail 2 and the second grinding rail 3. An adjustment handle 203 is inserted through the middle of the upper surface of the first grinding rail 2 and the second grinding rail 3. The output end of the adjustment handle 203 extends into the grinding groove 201. Locking screw rings 204 are movably installed on both sides of the middle of the upper surface of the first grinding rail 2 and the second grinding rail 3 through bearings. The locking screw rings 204 are spirally sleeved on the outer surface of the adjustment handle 203.
[0028] Grinding blocks 202 are fixedly installed on the inner bottom surface of the grinding groove 201 and the output end of the adjusting handle 203. An infrared sensor 301 is fixedly installed on one end of the inner bottom surface of the vertical grinding groove 201. The infrared sensor 301 is fixedly connected to the second grinding rail 3.
[0029] It should be noted that by rotating the locking screw ring 204 clockwise, the adjusting handle 203 can be lowered, thereby pushing its output end to extend into the polishing groove 201, so as to adjust the spacing between the polishing blocks 202 set in the polishing groove 201. By adjusting the spacing between the polishing blocks 202, their surfaces can come into contact with the printed circuit board to achieve the polishing effect on the printed circuit board.
[0030] By setting an infrared sensor 301 to sense the printed circuit board with infrared light, the control console 105 can start the motor 103 set at the second grinding rail 3 to work with the movable shaft 106 to make the movable roller 4 rotate clockwise. The clockwise rotation of the movable roller 4 drives the second conveyor belt 6 to run, thereby controlling the printed circuit board to move from the first grinding rail 2 to the second grinding rail 3, completing the grinding and transfer of the printed circuit board.
[0031] Both the movable shaft 106 and the support shaft 102 are fitted with movable rollers 4. The movable rollers 4 fitted on the outer surface of the movable shaft 106 are in a fixed fitted connection state, while the movable rollers 4 fitted on the outer surface of the support shaft 102 are in a movable fitted connection state.
[0032] The outer surface of the horizontal end movable roller 4 is fitted with a first conveyor belt 5, and a number of limiting plates 501 are uniformly fixed on the outer surface of the first conveyor belt 5. The outer surface of the vertical end movable roller 4 is fitted with a second conveyor belt 6, and a number of push plates 601 are uniformly fixed on the outer surface of the second conveyor belt 6.
[0033] It should be noted that the printed circuit board is placed on the limiting plate 501 set on the first conveyor belt 5 for limiting and fixing. When the first conveyor belt 5 is in operation, it can drive the printed circuit board to move into the grinding groove 201 opened in the first grinding rail 2. As the first conveyor belt 5 continues to run, the printed circuit board moves along the grinding groove 201. During the movement, the grinding block 202 is used to grind two sides of the printed circuit board. When the printed circuit board moves to the end of the first grinding rail 2, it can enter the second grinding rail 3. At this time, the infrared sensor 301 will be... Once the infrared sensor 301 is activated, the printed circuit board (PCB) is transferred from the first grinding rail 2 to the second grinding rail 3. At this time, the second conveyor belt 6 moves the PCB into the grinding groove 201 of the second grinding rail 3. As the second conveyor belt 6 continues to run, the pusher plate 601 pushes the PCB along the grinding groove 201. During the movement, the grinding block 202 grinds the other two sides of the PCB. When the PCB moves to the end of the second grinding rail 3, the burr grinding is completed and the PCB is discharged from the worktable 1.
[0034] Infrared sensor 301 is connected to console 105 via a wire, and motor 103 is connected to console 105 via a wire.
[0035] In use, the printed circuit board can first be placed on the limiting plate 501 set on the first conveyor belt 5 for limiting and fixing. At this time, the motor 103 set on the first grinding rail 2 is started. The motor 103 controls the movable roller 4 to rotate counterclockwise, which in turn makes the first conveyor belt 5 run. When the first conveyor belt 5 is running, it can drive the printed circuit board to move into the grinding groove 201 opened in the first grinding rail 2. As the first conveyor belt 5 continues to run, the printed circuit board moves along the grinding groove 201. During the movement, the grinding block 202 is used to grind two sides of the printed circuit board. When the printed circuit board moves to the end of the first grinding rail 2, it can enter the second grinding rail 3.
[0036] At this time, as the printed circuit board is continuously conveyed by the first conveyor belt 5, one side of the printed circuit board that has not yet been polished will separate from the limiting plate 501 as the first conveyor belt 5 rotates and extend to the infrared sensor 301; the control console 105 can then control the motor 103 set at the second polishing rail 3 to start and cooperate with the movable shaft 106 to make the movable roller 4 rotate clockwise. The clockwise rotation of the movable roller 4 drives the second conveyor belt 6 to run. At this time, the running of the second conveyor belt 6 can use the push plate 601 to push the printed circuit board to move into the polishing groove 201 opened in the second polishing rail 3. As the second conveyor belt 6 continues to run, it pushes the printed circuit board to move along the polishing groove 201. During the movement, the polishing block 202 is used to polish the other two sides of the printed circuit board. When the printed circuit board moves to the end of the second polishing rail 3, the burr polishing is completed and it is discharged from the worktable 1.
[0037] When the printed circuit board in the second grinding rail 3 is removed from the infrared sensor 301, the motor 103 set at the second grinding rail 3 stops running. When the subsequent printed circuit board covers the infrared sensor 301 again, the motor 103 set at the second grinding rail 3 will run again, thereby ensuring the stability of the printed circuit board when it is transferred from the first grinding rail 2 to the second grinding rail 3.
[0038] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A polishing device for producing printed circuit boards for communication servers, comprising a workbench (1), characterized in that, The upper surface of the workbench (1) has a triangular "L"-shaped channel (101) formed by the triangles. A support shaft (102) is fixedly installed at one end of the vertical end and the horizontal end of the channel (101). A movable shaft (106) is movably installed at the other end of the vertical end and the horizontal end of the channel (101). A motor (103) is fixedly installed at one end of the movable shaft (106). The channel (101) has a first grinding rail (2) symmetrically arranged on both sides of the upper surface of the horizontal end, and a second grinding rail (3) symmetrically arranged on both sides of the upper surface of the vertical end. A grinding groove (201) is opened in the middle of the inner side of the first grinding rail (2) and the second grinding rail (3). An adjustment handle (203) is inserted through the middle of the upper surface of the first grinding rail (2) and the second grinding rail (3). The output end of the adjustment handle (203) extends into the grinding groove (201). A grinding block (202) is fixedly installed on the inner bottom surface of the grinding groove (201) and the output end of the adjustment handle (203). An infrared sensor (301) is fixedly installed at one end of the inner bottom surface of the vertical end of the grinding groove (201). The infrared sensor (301) is fixedly connected to the second grinding rail (3). The outer surfaces of the movable shaft (106) and the support shaft (102) are both fitted with movable rollers (4). The outer surfaces of the movable rollers (4) at the transverse end are fitted with a first conveyor belt (5). The outer surfaces of the first conveyor belt (5) are uniformly fixed with several limiting plates (501). The outer surfaces of the movable rollers (4) at the vertical end are fitted with a second conveyor belt (6). The outer surfaces of the second conveyor belt (6) are uniformly fixed with several push plates (601).
2. The polishing device for producing printed circuit boards for communication servers according to claim 1, characterized in that, A fixing frame (104) is fixedly installed on the outer surface of the motor (103), and the fixing frame (104) is fixedly connected to the outer surface of the workbench (1). A control console (105) is fixedly installed on one corner of the upper surface of the workbench (1).
3. The polishing device for producing printed circuit boards for communication servers according to claim 1, characterized in that, Both sides of the upper surface of the first grinding rail (2) and the second grinding rail (3) are movably mounted with locking screw rings (204) via bearings. The locking screw rings (204) are spirally sleeved on the outer surface of the adjusting handle (203).
4. The grinding device for producing printed circuit boards for communication servers according to claim 1, characterized in that, The movable roller (4) sleeved on the outer surface of the movable shaft (106) is in a fixed sleeved connection state, while the movable roller (4) sleeved on the outer surface of the support shaft (102) is in a movable sleeved connection state.