PCB (Printed Circuit Board) burr removing device

Abstract

The utility model belongs to the technical field of PCB (printed circuit board) processing, and discloses a PCB burr removing device which is characterized in that two spacing plates arranged at an interval are mounted at the upper end of a support frame body, and a plurality of rectangular fixing grooves corresponding to each other are respectively formed in the two spacing plates and the two ends of the support frame body; two groups of rectangular grinding machine mounting grooves which correspond to each other are respectively formed in the middles of the two limiting plates and the supporting frame body; the lower ends of the two sets of grinding machine mounting grooves are each provided with a pneumatic grinding machine, and the middle positions of grinding wheels of the pneumatic grinding machines are flush with the middle position of the limiting plate. The PCB can be limited through the two limiting plates, high-pressure gas is adopted to drive a grinding wheel of the pneumatic grinding machine to rotate at a high speed, the grinding wheel makes contact with the edge of the PCB, burrs on the edge of the PCB are removed through sand on the surface of the grinding wheel, the burrs generated on the edge after an existing PCB is formed are treated, and the problems that manual repairing is long in time consumption and prone to scratching are solved. And the production efficiency and the machinability are considered, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of PCB processing, and in particular relates to a PCB board burr removal device. Background Art

[0002] Burr removal during PCB (Printed Circuit Board) processing is crucial for improving product quality and performance. Burrs are primarily caused by factors such as tool wear, improper cutting parameters, PCB material characteristics, and processing limitations. These burrs not only affect product aesthetics but also significantly reduce signal transmission performance, mechanical strength, and service life. They can even cause serious problems such as signal interference and mechanical failure.

[0003] Traditional deburring methods often rely on manual methods, such as sandpaper and files. This method is inefficient, labor-intensive, prone to scratches, and difficult to ensure consistent deburring results. To address this issue, the present invention provides a PCB deburring device that replaces manual deburring methods, significantly improving efficiency and quality. Utility Model Content

[0004] In order to overcome the problems existing in the related art, the utility model provides a PCB board burr removal device.

[0005] The technical solution of the utility model is as follows: a PCB board burr removal device is provided with a support frame, two spaced limit plates are installed on the upper end of the support frame, the two limit plates and the ends of the support frame are respectively provided with a plurality of rectangular fixing grooves corresponding to each other, and two sets of rectangular grinder mounting grooves corresponding to each other are respectively provided between the two limit plates and the support frame;

[0006] A pneumatic grinder is installed at the lower end of each of the two sets of grinder mounting slots. The middle position of the grinding wheel of the pneumatic grinder is flush with the middle position of the limit plate. The lower ends of the two pneumatic grinders are connected to an air intake pipe respectively. The lower ends of the two air intake pipes are respectively connected to the two ends of a three-way joint, and the other end of the three-way joint is connected to the external air supply pipeline.

[0007] In one embodiment, the support frame is fixedly connected to two T-shaped fixing jigs, the middle structure of the T-shaped fixing jig is a hollow tube, both ends of the T-shaped fixing jig are respectively provided with jig fixing holes, and both ends of the hollow tube are respectively provided with grinder fixing holes, and two pneumatic grinders are respectively fixed to the inner side of the lower ends of the two T-shaped fixing jigs through the grinder fixing holes.

[0008] In one embodiment, a dust hood is provided on the upper side cover of the pneumatic grinder, and the upper end of the dust hood is connected to an external dust collection device through a dust collection pipeline.

[0009] In one embodiment, the support frame includes two support plates and four double-headed support columns with threads. Circular holes are respectively opened at the four corners of the support plates, and the four support columns are installed between the two support plates through the circular holes.

[0010] In one embodiment, the support plate, the limiting plate and the dust cover are all made of transparent acrylic plates.

[0011] In one embodiment, opposite sides of the two limiting plates are inclined surfaces with an angle of 45°, and the distance between the lower ends of the two limiting plates is greater than the distance between the upper ends.

[0012] In combination with the above technical solution, the beneficial effects of the present invention are as follows: the present invention can limit the PCB board by two limit plates, use high-pressure gas to drive the grinding wheel of the pneumatic grinder to rotate at high speed, so that the grinding wheel contacts the edge of the PCB board, and the sand on the surface of the grinding wheel removes burrs on the edge of the PCB board. It is aimed at treating the burrs generated on the edges of the existing PCB boards after forming, replacing the manual repair method, solving the problems of manual repair being time-consuming and easy to scratch, taking into account production efficiency, machinability and reduced manufacturing costs, and can avoid the manual use of knives / sandpaper to scrape PCB burrs, completely eliminating knife marks / grinding marks on the PCB surface, and improving product quality and efficiency.

[0013] The utility model can adjust the distance between the two limit plates and the two grinding wheels through the rectangular fixing groove and the grinder installation groove, so that PCB boards of different sizes can be processed and universality is achieved.

[0014] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the disclosure of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0016] Figure 1 This is a schematic structural diagram of a PCB board burr removal device provided by an embodiment of the present utility model;

[0017] Figure 2 This is a schematic structural diagram of a dust hood provided by an embodiment of the present utility model;

[0018] Figure 3 This is a schematic structural diagram of a support frame provided by an embodiment of the present utility model;

[0019] Figure 4 This is a schematic structural diagram of a limit plate provided by an embodiment of the present utility model;

[0020] Figure 5 This is a side structural diagram of a limit plate provided by an embodiment of the present utility model;

[0021] Figure 6 This is a schematic diagram of the assembly structure of the pneumatic grinder provided by an embodiment of the utility model;

[0022] Figure 7 This is a schematic structural diagram of a T-shaped fixing fixture provided by an embodiment of the present utility model;

[0023] In the figure: 1. Support frame; 2. Limit plate; 3. Fixing slot; 4. Grinder mounting slot; 5. Pneumatic grinder; 6. Air inlet pipe; 7. T-joint; 8. Air supply pipeline; 9. T-shaped fixing fixture; 10. Hollow tube; 11. Fixture fixing hole; 12. Grinder fixing hole; 13. Dust hood; 14. Dust collection pipeline; 15. Support plate; 16. Support column; 17. PCB board. DETAILED DESCRIPTION

[0024] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] like Figure 1 and Figure 2 As shown, the PCB board burr removal device provided by the embodiment of the present utility model includes a support frame 1, a limit plate 2, a pneumatic grinder 5 and a dust cover 13.

[0026] Two spaced apart limit plates 2 are mounted on the upper end of the support frame 1, and two pneumatic grinders 5 are mounted in the middle of the support frame 1. The middle positions of the grinding wheels of the pneumatic grinders 5 are flush with the middle positions of the limit plates 2. A dust hood 13 is mounted on the upper ends of the two pneumatic grinders 5. The upper end of the dust hood 13 is connected to an external dust collection device via a dust collection pipe 14.

[0027] like Figure 3 As shown, the support frame 1 in the embodiment of the present invention includes two support plates 15 and four double-headed support columns 16 with threads. Circular holes are respectively opened at the four corners of the support plates 15, and the four support columns 16 are installed between the two support plates 15 through the circular holes.

[0028] Preferably, the support plate 15 , the limiting plate 2 and the dust cover 13 in the embodiment of the present invention are all made of transparent acrylic plates.

[0029] like Figure 3 and Figure 4 As shown, the two limiting plates 2 and the supporting frame 1 in the embodiment of the present invention are respectively provided with a plurality of corresponding rectangular fixing grooves 3 at both ends, and two groups of corresponding rectangular grinder installation grooves 4 are respectively provided in the middle of the two limiting plates 2 and the supporting frame 1.

[0030] like Figure 5 As shown, the opposite sides of the two limiting plates 2 in the embodiment of the present invention are both inclined surfaces with an angle of 45°, and the distance between the lower ends of the two limiting plates 2 is greater than the distance between the upper ends.

[0031] like Figure 6 As shown, the two pneumatic grinders 5 in the embodiment of the present invention are respectively connected to the support frame 1 through a T-shaped fixing fixture 9, and the lower ends of the two pneumatic grinders 5 are respectively connected to an air intake pipe 6, and the lower ends of the two air intake pipes 6 are respectively connected to the two ends of a three-way joint 7, and the other end of the three-way joint 7 is connected to the external air supply pipeline 8.

[0032] like Figure 7 As shown, the middle structure of the T-shaped fixing jig 9 in the embodiment of the present invention is a hollow tube 10, and jig fixing holes 11 are respectively opened at both ends of the T-shaped fixing jig 9, and grinder fixing holes 12 are respectively opened at both ends of the hollow tube 10. The two pneumatic grinders 5 are respectively fixed to the inner side of the lower ends of the two T-shaped fixing jigs 9 through the grinder fixing holes 12.

[0033] The working principle of the present invention is as follows: when in use, the spacing between the two limit plates 2 and the two grinding wheels is adjusted according to the size of the PCB board 17 to be processed. The pneumatic grinder 5 is started, and the grinding wheel of the pneumatic grinder 5 is driven to rotate by the air source provided by the external air supply pipe 8. The PCB board 17 to be processed is placed at one end of the gap between the two limit plates 2. Since the opposite side of the limit plates 2 is a 45° slope and the spacing between the lower ends is greater than the spacing between the upper ends, the PCB board 17 can be stably limited to prevent it from falling out on the upper side. When the PCB board 17 moves to the grinding wheel position of the pneumatic grinder 5, the edge burrs on the PCB board 17 are polished away by the grinding wheel. During the polishing process, the dust and debris generated will be captured by the dust hood 13 and sucked into the external dust collection equipment through the dust collection pipe 14 to keep the working environment clean. The processed PCB board 17 is removed and the next step or quality inspection is carried out.

[0034] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein, and these modifications or replacements should all be included in the scope of protection of the present invention.

Claims

1. A PCB board burr removal device, comprising a support frame (1), characterized in that: Two spaced-apart limiting plates (2) are installed on the upper end of the support frame (1); a plurality of mutually corresponding rectangular fixing grooves (3) are respectively provided at both ends of the two limiting plates (2) and the support frame (1); and two groups of mutually corresponding rectangular grinding machine installation grooves (4) are respectively provided between the two limiting plates (2) and the support frame (1); A pneumatic grinder (5) is respectively installed at the lower end of the two groups of grinder installation slots (4), the middle position of the grinding wheel of the pneumatic grinder (5) is flush with the middle position of the limit plate (2), and the lower ends of the two pneumatic grinders (5) are respectively connected to an air intake pipe (6), and the lower ends of the two air intake pipes (6) are respectively connected to the two ends of a three-way joint (7), and the other end of the three-way joint (7) is connected to an external air supply pipeline (8).

2. The PCB deburring device according to claim 1, characterized in that: The support frame (1) is fixedly connected to two T-shaped fixing jigs (9), the middle structure of the T-shaped fixing jig (9) is a hollow tube (10), both ends of the T-shaped fixing jig (9) are respectively provided with jig fixing holes (11), and both ends of the hollow tube (10) are respectively provided with grinder fixing holes (12), and two pneumatic grinders (5) are respectively fixed to the inner sides of the lower ends of the two T-shaped fixing jigs (9) through the grinder fixing holes (12).

3. The PCB deburring device according to claim 1, characterized in that: The upper side cover of the pneumatic grinder (5) is provided with a dust collection cover (13), and the upper end of the dust collection cover (13) is communicated with an external dust collection device through a dust collection pipeline (14).

4. The PCB deburring device according to claim 3, characterized in that: The support frame (1) comprises two support plates (15) and four double-headed support columns (16) with threads. Circular holes are respectively provided at the four corners of the support plates (15), and the four support columns (16) are installed between the two support plates (15) through the circular holes.

5. The PCB deburring device according to claim 4, characterized in that: The support plate (15), the limiting plate (2) and the dust cover (13) are all made of transparent acrylic plates.

6. The PCB deburring device according to claim 1, characterized in that: The opposite sides of the two limiting plates (2) are both inclined surfaces with an angle of 45°, and the distance between the lower ends of the two limiting plates (2) is greater than the distance between the upper ends.

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