Secondary coping device for circuit board process edge

Abstract

The utility model relates to a circuit board process edge secondary coping device which comprises an installation frame, a vertically-arranged rotating rod and a rotating shaft vertically and rotatably arranged on the installation frame, the rotating rod is connected with the rotating shaft through an elastic telescopic structure, a grinding wheel is arranged at the bottom end of the rotating rod, and the elastic telescopic structure enables the grinding wheel to be tightly attached to the process edge of a circuit board all the time. A speed-increasing transmission structure is arranged between the rotating rod and the rotating shaft, and the speed-increasing transmission structure can drive the rotating rod to rotate rapidly through rotation of the rotating shaft so that the grinding wheel can grind the technological edge of the circuit board. The elastic telescopic structure enables the grinding wheel to be tightly attached to the technological edge of the circuit board all the time through the rotating rod, the speed-increasing transmission structure drives the rotating rod to rotate rapidly so that the grinding wheel can grind the technological edge of the circuit board, and a mechanical matching mode is adopted, so that the working efficiency is improved, and the labor intensity of workers is reduced; and circuit board process edges with different sizes can be adapted.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing, in particular to a device for secondary grinding of the process edge of a circuit board. Background Technique

[0002] With the continuous development of electronic technology, more and more electronic devices are widely used. As an important part of various electronic devices, circuit boards have also attracted more and more attention. The production of circuit boards requires multiple processes, and one very important process is the processing of the process edge.

[0003] During the process of manufacturing a circuit board, various components, connecting wires, connectors, etc. usually need to be engraved on the board, which needs to be completed by cutting or drilling. The result of this is that a contour line is formed around the circuit board, and this line is the process edge.

[0004] The several main functions of the process edge are as follows: edge flatness, ensuring dimensional stability, facilitating assembly, protecting the circuit board, and facilitating distinction. Among them, for edge flatness, when manufacturing a circuit board, the process edge must be processed smoothly, which can ensure that the circuit board will not be affected by errors during installation and connection. If the process edge is well polished, it can ensure that the circuit board will not be skewed or misaligned during installation, thus affecting the overall performance stability of the electronic device.

[0005] Generally, the process edge of a circuit board will be processed when leaving the factory, but during specific use, the original circuit board usually needs to be cut according to requirements, so that the size of the cut circuit board becomes appropriate. Since cutting will make the process edge uneven, it is necessary to perform secondary grinding on it. Currently, the grinding method is generally manual or through grinding equipment. Manually holding a grinding tool to grind the process edge not only has low efficiency but also increases the labor intensity of workers during long-term operation; when using grinding equipment for processing, due to the different lengths and widths of the process edges of circuit boards, it is very difficult for the grinding equipment to be adapted. Content of the Utility Model

[0006] The purpose of the utility model is to provide a device for secondary grinding of the process edge of a circuit board to solve the problems raised in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution:

[0008] A device for secondary grinding of the process edge of a circuit board includes a mounting frame, a vertically arranged rotating rod, and a rotating shaft vertically and rotatably arranged on the mounting frame. The rotating rod is connected to the rotating shaft through an elastic telescopic structure, and a grinding wheel is arranged at the bottom end of the rotating rod.

[0009] During the rotation of the rotating shaft, the elastic telescopic structure will keep the grinding wheel always in close contact with the process edge of the circuit board. A motor is arranged on the mounting frame, and the output end of the motor is connected to one end of the rotating shaft;

[0010] A speed increasing transmission structure is arranged between the rotating rod and the rotating shaft. The speed increasing transmission structure cooperates with the elastic telescopic structure, can move along with the rotating rod, and the speed increasing transmission structure can drive the rotating rod to rotate rapidly by using the rotation of the rotating shaft, so that the grinding wheel grinds the process edge of the circuit board.

[0011] As a further solution of the present utility model:

[0012] The elastic telescopic structure includes a sleeve and a sliding rod that is slidably matched with the sleeve. A collar is arranged at one end of the sliding rod;

[0013] The rotating rod is rotatably connected to the collar, and one end of the sleeve away from the collar is connected to the rotating shaft.

[0014] As a further solution of the present utility model:

[0015] The elastic telescopic structure further includes a baffle arranged at the other end of the sliding rod and a spring arranged in the sleeve;

[0016] The spring is sleeved on the outer wall of the sliding rod, and both ends of the spring are respectively abutted against the inner wall of one end of the sleeve close to the collar and the side of the baffle close to the collar, so that the sliding rod always has a tendency to contract into the sleeve.

[0017] As a further solution of the present utility model:

[0018] The speed increasing transmission structure includes a sleeve and a sliding column that is slidably matched with the sleeve. The sleeve is horizontally rotatably arranged on the sleeve through a bracket. A connecting frame is arranged on the outer wall of the sliding rod, and the sliding column is rotatably connected to the connecting frame.

[0019] As a further solution of the present utility model:

[0020] A limiting groove is arranged along the length direction of the inner wall of the sleeve, and a limiting post is arranged along the length direction of the outer wall of the sliding column. The limiting post is located inside the limiting groove and is slidably matched with each other;

[0021] An annular groove is formed on the outer wall of the sliding column, and an annular convex column is arranged inside the connecting frame. The annular convex column is located inside the annular groove and is rotatably matched with each other.

[0022] As a further solution of the present utility model:

[0023] One end of the sliding column close to the rotating rod is provided with a first bevel gear, one end of the sleeve close to the rotating shaft is provided with a second bevel gear, and the rotating rod is provided with a third bevel gear meshing with the first bevel gear.

[0024] As a further scheme of the utility model:

[0025] A fixing frame is arranged on the rotating shaft, a rotating column is vertically rotatably arranged on the fixing frame, and the top end of the rotating column is rotatably connected with the outer wall of the sleeve;

[0026] A fourth bevel gear meshing with the second bevel gear is arranged on the outer wall of the rotating column, a driving gear is arranged on the rotating shaft, and a driven gear meshing with the driving gear is arranged on the rotating column;

[0027] Wherein, the diameter of the driving gear is larger than that of the driven gear.

[0028] Compared with the prior art, the beneficial effects of the utility model are: in the process of driving the rotating shaft to rotate by the motor, the elastic telescopic structure will make the grinding wheel always closely adhere to the process edge of the circuit board through the rotating rod to adapt to process edges of different sizes, and the speed increasing transmission structure will use the rotating rotating shaft as the power source to drive the rotating rod to rotate rapidly, so that the grinding wheel grinds the process edge of the circuit board. By adopting the mechanical cooperation mode, not only the working efficiency is improved and the labor intensity of personnel is reduced, but also the process edges of circuit boards of different sizes can be adapted. Description of the drawings

[0029] Figure 1 It is a schematic diagram of the overall structure.

[0030] Figure 2 It is a cross-sectional view of the sleeve and the sleeve structure.

[0031] Figure 3 For Figure 2 The enlarged view at A in

[0032] Figure 4 It is a schematic diagram of removing the mounting frame and the motor structure.

[0033] Figure 5 It is a schematic diagram of the overall structure from another perspective.

[0034] Figure 6 It is an exploded view of the elastic telescopic structure.

[0035] Figure 7 It is an exploded view of a part of the speed increasing transmission structure.

[0036] In the figure: 1, mounting bracket; 2, rotating rod; 3, rotating shaft; 4, grinding wheel; 5, motor; 6, sleeve; 7, sliding rod; 8, collar; 9, baffle; 10, spring; 11, sleeve; 1101, limiting groove; 12, sliding column; 1201, limiting groove; 1202, annular groove; 13, bracket; 14, connecting frame; 1401, annular convex column; 15, first bevel gear; 16, second bevel gear; 17, third bevel gear; 18, fixing frame; 19, rotating column; 20, fourth bevel gear; 21, driving gear; 22, driven gear. Specific implementation mode

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] In addition, the elements in the present invention are referred to as "fixed to" or "arranged on" another element. It can be directly on another element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation mode.

[0039] Please refer to Figures 1 to 7 , in the embodiment of the present invention, a device for secondary grinding of the process edge of a circuit board includes a mounting bracket 1, a vertically arranged rotating rod 2 and a rotating shaft 3 vertically rotatably arranged on the mounting bracket 1. The rotating rod 2 is connected to the rotating shaft 3 through an elastic telescopic structure, and a grinding wheel 4 is arranged at the bottom end of the rotating rod 2;

[0040] During the rotation of the rotating shaft 3, the elastic telescopic structure will make the grinding wheel 4 always closely adhere to the process edge of the circuit board. A motor 5 is arranged on the mounting bracket 1, and the output end of the motor 5 is connected to one end of the rotating shaft 3;

[0041] A speed increasing transmission structure is arranged between the rotating rod 2 and the rotating shaft 3. The speed increasing transmission structure cooperates with the elastic telescopic structure, can move along with the rotating rod 2, and the speed increasing transmission structure can utilize the rotation of the rotating shaft 3 to drive the rotating rod 2 to rotate rapidly, so that the grinding wheel 4 grinds the process edge of the circuit board.

[0042] In this solution, during the process of driving the rotating shaft 3 to rotate by the motor 5, the elastic telescopic structure will make the grinding wheel 4 always closely adhere to the process edge of the circuit board through the rotating rod 2 to adapt to process edges of different sizes. And the speed-increasing transmission structure will use the rotating rotating shaft 3 as the power source to drive the rotating rod 2 to rotate rapidly, so that the grinding wheel 4 grinds the process edge of the circuit board. By adopting the mechanical cooperation method, not only the work efficiency is improved and the labor intensity of personnel is reduced, but also the process edges of circuit boards of different sizes can be adapted.

[0043] As a further solution of the present utility model, the elastic telescopic structure includes a sleeve 6 and a sliding rod 7 slidably matched with the sleeve 6. One end of the sliding rod 7 is provided with a collar 8;

[0044] The rotating rod 2 is rotatably connected to the collar 8, and one end of the sleeve 6 away from the collar 8 is connected to the rotating shaft 3.

[0045] The elastic telescopic structure further includes a baffle 9 provided at the other end of the sliding rod 7 and a spring 10 provided in the sleeve 6;

[0046] The spring 10 is sleeved on the outer wall of the sliding rod 7, and both ends of the spring 10 are respectively abutted against the inner wall of one end of the sleeve 6 close to the collar 8 and one side of the baffle 9 close to the collar 8, so that the sliding rod 7 always has a tendency to shrink into the sleeve 6.

[0047] In this embodiment, since the sleeve 6 and the sliding rod 7 are slidably matched with each other, and one end of the sliding rod 7 is provided with a collar 8 rotatably connected to the rotating rod 2, and one end of the sleeve 6 is connected to the rotating shaft 3, when the motor 5 drives the rotating shaft 3 to rotate, the rotating rod 2 will rotate following the rotating shaft 3 through the sleeve 6 and the sliding rod 7;

[0048] Also because of the interaction between the baffle 9 and the spring 10, the sliding rod 7 always has a tendency to shrink into the sleeve 6, so the sliding rod 7 will make the grinding wheel 4 always closely adhere to the process edge of the circuit board through the rotating rod 2 to adapt to process edges of different sizes.

[0049] As a further solution of the present utility model, the speed-increasing transmission structure includes a sleeve 11 and a sliding column 12 slidably matched with the sleeve 11. The sleeve 11 is horizontally rotatably arranged on the sleeve 6 through a bracket 13. A connecting frame 14 is arranged on the outer wall of the sliding rod 7, and the sliding column 12 is rotatably connected to the connecting frame 14.

[0050] In this embodiment, since the sleeve 11 and the sliding column 12 are slidably engaged with each other, the sleeve 11 is horizontally rotatably arranged on the sleeve 6 through the bracket 13, and a connecting frame 14 is arranged on the outer wall of the sliding rod 7, and the sliding column 12 is rotatably connected to the connecting frame 14. Therefore, during the sliding process of the sliding rod 7 and the sleeve 6, the sliding column 12 will slide along with the sliding rod 7 through the connecting frame 14.

[0051] As a further solution of the present invention, a limiting groove 1101 is arranged on the inner wall of the sleeve 11 along its length direction, a limiting post 1201 is arranged on the outer wall of the sliding column 12 along its length direction, and the limiting post 1201 is located inside the limiting groove 1101 and they are slidably engaged with each other;

[0052] An annular groove 1202 is formed on the outer wall of the sliding column 12, an annular convex column 1401 is arranged inside the connecting frame 14, and the annular convex column 1401 is located inside the annular groove 1202 and they are rotatably engaged with each other.

[0053] In this embodiment, since the limiting post 1201 arranged on the sliding column 12 is located inside the limiting groove 1101 on the inner wall of the sleeve 11 and they are slidably engaged with each other, the sleeve 11 and the sliding column 12 can slide relative to each other, and when the sleeve 11 rotates, the sliding column 12 will rotate along with the sleeve 11;

[0054] Also, because the annular convex column 1401 is located inside the annular groove 1202 and they are rotatably engaged with each other, the rotational connection between the sliding column 12 and the connecting frame 14 can be realized, and the sliding rod 7 can drive the sliding column 12 and the sleeve 11 to perform sliding engagement through the connecting frame 14.

[0055] As a further solution of the present invention, a first bevel gear 15 is arranged at one end of the sliding column 12 close to the rotating rod 2, a second bevel gear 16 is arranged at one end of the sleeve 11 close to the rotating shaft 3, and a third bevel gear 17 meshing with the first bevel gear 15 is arranged on the rotating rod 2.

[0056] In this embodiment, since the first bevel gear 15 and the third bevel gear 17 are meshed with each other, and the first bevel gear 15 and the second bevel gear 16 are respectively connected to the sliding column 12 and the sleeve 11, when the second bevel gear 16 rotates, the second bevel gear 16 will drive the third bevel gear 17 to rotate through the sleeve 11, the sliding column 12 and the first bevel gear 15, so that the rotating rod 2 drives the grinding wheel 4 to rotate self - sufficiently to grind the process edge of the circuit board.

[0057] As a further solution of the present invention, a fixing frame 18 is arranged on the rotating shaft 3, a rotating column 19 is vertically rotatably arranged on the fixing frame 18, and the top end of the rotating column 19 is rotatably connected to the outer wall of the sleeve 6;

[0058] The outer wall of the rotating column 19 is provided with a fourth bevel gear 20 that meshes with the second bevel gear 16. The rotating shaft 3 is provided with a driving gear 21, and the rotating column 19 is provided with a driven gear 22 that meshes with the driving gear 21;

[0059] Wherein, the diameter of the driving gear 21 is larger than the diameter of the driven gear 22.

[0060] In this embodiment, since the driving gear 21 and the driven gear 22 mesh with each other, and the fourth bevel gear 20 and the second bevel gear 16 mesh with each other, during the rotation of the rotating shaft 3, the driving gear 21 will drive the driven gear 22 to rotate rapidly, and the rapidly rotating driven gear 22 will drive the second bevel gear 16 to rotate rapidly through the rotating column 19 and the fourth bevel gear 20;

[0061] Also, because the diameter of the driving gear 21 is larger than the diameter of the driven gear 22, therefore, the rotating driving gear 21 will drive the driven gear 22 to rotate at an increased speed.

[0062] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0063] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A secondary grinding device for the process edge of a circuit board, comprising a mounting frame (1), a vertically arranged rotating rod (2), and a rotating shaft (3) vertically rotatably arranged on the mounting frame (1), characterized in that, The rotating rod (2) is connected to the rotating shaft (3) through an elastic telescopic structure, and a grinding wheel (4) is provided at the bottom end of the rotating rod (2). During the rotation of the rotating shaft (3), the elastic telescopic structure will make the grinding wheel (4) always closely adhere to the process edge of the circuit board. A motor (5) is provided on the mounting bracket (1), and the output end of the motor (5) is connected to one end of the rotating shaft (3). A speed increasing transmission structure is provided between the rotating rod (2) and the rotating shaft (3). The speed increasing transmission structure cooperates with the elastic telescopic structure, can move along with the rotating rod (2), and the speed increasing transmission structure can drive the rotating rod (2) to rotate rapidly by using the rotation of the rotating shaft (3), so that the grinding wheel (4) grinds the process edge of the circuit board.

2. The secondary grinding device for the process edge of a circuit board according to claim 1, wherein The elastic telescopic structure includes a sleeve (6) and a sliding rod (7) that is slidably matched with the sleeve (6). A collar (8) is provided at one end of the sliding rod (7). The rotating rod (2) is rotatably connected to the collar (8), and the end of the sleeve (6) away from the collar (8) is connected to the rotating shaft (3).

3. The secondary grinding device for the process edge of a circuit board according to claim 2, wherein The elastic telescopic structure further includes a baffle (9) provided at the other end of the sliding rod (7) and a spring (10) provided in the sleeve (6). The spring (10) is sleeved on the outer wall of the sliding rod (7), and the two ends of the spring (10) are respectively abutted against the inner wall of the sleeve (6) near the collar (8) and the side of the baffle (9) near the collar (8), so that the sliding rod (7) always has a tendency to shrink into the sleeve (6).

4. The secondary grinding device for the process edge of a circuit board according to claim 2, wherein, The speed increasing transmission structure includes a sleeve (11) and a sliding column (12) that is slidably matched with the sleeve (11). The sleeve (11) is horizontally rotatably arranged on the sleeve (6) through a bracket (13). A connecting frame (14) is provided on the outer wall of the sliding rod (7), and the sliding column (12) is rotatably connected to the connecting frame (14).

5. The secondary grinding device for the process edge of a circuit board according to claim 4, characterized in that, A limiting groove (1101) is provided along the length direction of the inner wall of the sleeve (11), and a limiting post (1201) is provided along the length direction of the outer wall of the sliding column (12). The limiting post (1201) is located inside the limiting groove (1101) and is slidably matched with each other. An annular groove (1202) is formed on the outer wall of the sliding column (12), and an annular convex column (1401) is provided inside the connecting frame (14). The annular convex column (1401) is located inside the annular groove (1202) and is rotatably matched with each other.

6. The secondary grinding device for the process edge of a circuit board according to claim 4, characterized in that, A first bevel gear (15) is provided at one end of the sliding column (12) close to the rotating rod (2), a second bevel gear (16) is provided at one end of the sleeve (11) close to the rotating shaft (3), and a third bevel gear (17) meshing with the first bevel gear (15) is provided on the rotating rod (2).

7. The secondary grinding device for the process edge of a circuit board according to claim 6, characterized in that, A fixing frame (18) is arranged on the rotating shaft (3), a rotating column (19) is vertically rotatably arranged on the fixing frame (18), and the top end of the rotating column (19) is rotatably connected to the outer wall of the sleeve (6); A fourth bevel gear (20) meshing with the second bevel gear (16) is arranged on the outer wall of the rotating column (19), a driving gear (21) is arranged on the rotating shaft (3), and a driven gear (22) meshing with the driving gear (21) is arranged on the rotating column (19); Wherein, the diameter of the driving gear (21) is larger than the diameter of the driven gear (22).

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