Drilling protection cover plate of rigid-flex circuit board

Abstract

The utility model discloses a drilling protection cover plate of a rigid-flex circuit board, which relates to the technical field of circuit board processing and comprises a base, the top of the base is fixedly connected with a plug block, and the top of the plug block is clamped with a support frame. A limiting pin is inserted between the steering wheel and the supporting piece, the position of the steering wheel on the top of the supporting piece can be limited through the limiting pin, then the using direction of the second guide strip is changed, a guide cylinder is installed above the second guide strip, a drill bit penetrates through the guide cylinder to drill a circuit board, and the accuracy of the drilling position can be improved; the first guide strip and the second guide strip can slide along the supporting frame, the drilling position of the circuit board is changed and adjusted, overall operation is convenient, calibration is not needed, drilling time is short, displacement of the base during circuit board machining can be reduced through the suction cup and the installation piece, and therefore the stability of the whole device during use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing, in particular to a drilling protection cover plate for a flexible-rigid combined circuit board. Background Art

[0002] The birth and development of FPC and PCB have given rise to this new product of flexible-rigid combined board. Therefore, a flexible-rigid combined board is a circuit board formed by combining a flexible printed circuit (FPC) and a printed circuit board (PCB) through processes such as lamination and combining them together according to relevant process requirements, having the characteristics of both FPC and PCB.

[0003] For example, Chinese Patent CN218735255U discloses a drilling protection cover plate for a PCB circuit board, including a PCB circuit board drilling box, a drilling protection plate, an auxiliary positioning plate, and a circuit board support block. The auxiliary positioning plate is threadedly slidably connected to the PCB circuit board drilling box. The drilling protection plate is provided with a first positioning hole, and the auxiliary positioning plate is provided with a second positioning hole.

[0004] In the above patent, although the problems of low protection efficiency and drilling accuracy of the protection cover plate are solved through the first positioning hole and the second positioning hole, the first positioning hole and the second positioning hole are respectively arranged on different structures and are independent of each other. During sliding, it is necessary to manually calibrate the coincidence position of the two. When drilling at multiple different positions on the circuit board, multiple calibration operations are relatively complicated and the overall time consumption is long. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problem in the prior art that the first positioning hole and the second positioning hole are respectively arranged on different structures and are independent of each other. During sliding, it is necessary to manually calibrate the coincidence position of the two. When drilling at multiple different positions on the circuit board, multiple calibration operations are relatively complicated and the overall time consumption is long, and to propose a drilling protection cover plate for a flexible-rigid combined circuit board.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: A drilling protection cover plate for a flexible-rigid combined circuit board, including a base. A plug-in block is fixedly connected to the top of the base. A support frame is clamped on the top of the plug-in block. A guiding mechanism is arranged on the top of the support frame. The guiding mechanism includes a first guiding strip, a limiting block, and a second guiding strip. The bottom of the first guiding strip is slidably connected to the support frame. A guiding block is clamped and connected to the bottom of the first guiding strip. One side of the guiding block is clamped and slidably connected between the support frame and the support frame. A support member is fixedly connected to the bottom of the first guiding strip. A steering wheel is rotatably connected to the top of the support member. A limiting pin is inserted between the steering wheel and the support member, and one side of the limiting pin is fixedly connected to the second guiding strip. The top of the second guiding strip is fixedly connected to a guiding cylinder, and one side of the second guiding strip is fixedly connected to the limiting block.

[0007] Preferably, the bottom of the limiting block is slidably connected to the support frame. The bottom of the limiting block is connected to a positioning block through a damping rotating shaft, and the positioning block is slidably connected to one side of the support frame.

[0008] Preferably, the support frame is provided with a positioning hole at the top, and the limiting block is also provided with a positioning hole at the top.

[0009] Preferably, a threaded rod is inserted through the support frame. One end of the threaded rod is rotatably connected to the support frame, and the threaded rod is threadedly connected to a guiding block. One side of the guiding block is slidably connected to the support frame.

[0010] Preferably, a support bar is lapped at the bottom of the support frame, and the bottom of the plug-in block is fixedly connected to the base.

[0011] Preferably, a positioning bar is fixedly connected to the top of the base, and a mounting member is fixedly connected to one side of the base. The mounting member is provided with a mounting hole at the top.

[0012] Preferably, a suction cup is fixedly connected to the bottom of the base. An anti-slip strip is arranged on one side of the suction cup, and one side of the anti-slip strip is fixedly connected to the base.

[0013] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0014] 1. In the present utility model, the bottom of the steering wheel is rotatably connected to the support member, and a limiting pin is inserted between the steering wheel and the support member. The limiting pin can be used to limit the position of the steering wheel on the top of the support member, thereby changing the use direction of the second guiding strip. A guiding cylinder is installed above the second guiding strip, and the drill bit passes through the guiding cylinder to drill the circuit board, which can improve the accuracy of the drilling position. Both the first guiding strip and the second guiding strip can slide along the support frame to change and adjust the drilling position of the circuit board. The overall operation is relatively convenient, without the need for calibration, and the drilling time is shorter.

[0015] 2. In the present utility model, the top of the plug-in block is snap-fitted with the support frame. The plug-in block can be used to connect the support frame and the base, facilitating the installation and disassembly of the support frame on the top of the base. The plug-in block and the positioning bar can limit the installation of the circuit board on the top of the base. The suction cup and the mounting member can reduce the displacement of the base during the processing of the circuit board, thereby improving the stability of the entire device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic three-dimensional structure diagram of a drilling protection cover plate for a rigid-flexible printed circuit board proposed by the present utility model;

[0017] Figure 2 is a schematic installation diagram of the guiding block structure of a drilling protection cover plate for a rigid-flexible printed circuit board proposed by the present utility model;

[0018] Figure 3 The figure shows a schematic connection diagram of a limit pin and a steering wheel structure for a drilling protection cover plate of a rigid-flex printed circuit board proposed by the present utility model;

[0019] Figure 4 The figure shows a schematic installation diagram of a suction cup structure for a drilling protection cover plate of a rigid-flex printed circuit board proposed by the present utility model.

[0020] Legend: 1. First guiding strip; 2. Support frame; 3. Base; 4. Threaded rod; 5. Limit block; 6. Positioning hole; 7. Guiding cylinder; 8. Second guiding strip; 9. Guiding block; 10. Mounting part; 11. Limit pin; 12. Steering wheel; 13. Positioning block; 14. Support member; 15. Support strip; 16. Insertion block; 17. Positioning strip; 18. Suction cup; 19. Anti-slip strip. Detailed implementation manners

[0021] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the following further describes the present utility model with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0022] In the following description, many specific details are set forth to fully understand the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0023] Embodiment 1: Refer to Figure 1 - Figure 4 As shown in the figure: A drilling protection cover plate for a rigid-flex printed circuit board includes a base 3. A top of the base 3 is fixedly connected with an insertion block 16. A top of the insertion block 16 is engaged with a support frame 2. A guiding mechanism is arranged on a top of the support frame 2. The guiding mechanism includes a first guiding strip 1, a limit block 5 and a second guiding strip 8. A bottom of the first guiding strip 1 is slidably connected with the support frame 2. A bottom of the first guiding strip 1 is engaged and connected with a guiding block 9. One side of the guiding block 9 is engaged in the support frame 2 and is slidably connected with the support frame 2. A bottom of the first guiding strip 1 is fixedly connected with a support member 14. A top of the support member 14 is rotatably connected with a steering wheel 12. A limit pin 11 is inserted between the steering wheel 12 and the support member 14. And one side of the limit pin 11 is fixedly connected with the second guiding strip 8. A top of the second guiding strip 8 is fixedly connected with a guiding cylinder 7. And one side of the second guiding strip 8 is fixedly connected with the limit block 5.

[0024] The bottom of the limit block 5 is slidably connected to the support frame 2. A positioning block 13 is connected to the bottom of the limit block 5 through a damping rotating shaft. The positioning block 13 is slidably connected to one side of the support frame 2. A positioning hole 6 is provided at the top of the support frame 2, and a positioning hole 6 is also provided at the top of the limit block 5. A threaded rod 4 is inserted through the support frame 2. One end of the threaded rod 4 is rotatably connected to the support frame 2, and the threaded rod 4 is threadedly connected to a guide block 9. One side of the guide block 9 is slidably connected to the support frame 2.

[0025] The threaded rod 4 can be used to drive the movement of the guide block 9. When the guide block 9 moves, the support frame 2 can guide the movement of the guide block 9, thereby improving the smoothness of the movement of the guide block 9 and the first guide bar 1, realizing the position adjustment of the first guide bar 1 and the limit block 5, changing the drilling position on the circuit board. The steering wheel 12 and the support member 14 are rotatably connected. By using the rotation of the steering wheel 12 on the top of the support member 14, the use direction of the second guide bar 8 can be changed, so that the second guide bar 8 is parallel or perpendicular to the first guide bar 1. The second guide bar 8 can support the bottom of the guide cylinder 7. The guide cylinder 7 can guide the insertion of the drill bit, facilitating the limitation of the use position of the drill bit, thereby improving the accuracy of drilling. By rotating the positioning block 13, the contact between the bottom of the limit block 5 and the support frame 2 can be realized, so that the limit block 5 and the positioning block 13 can guide the movement of the second guide bar 8, and the movement of the limit block 5 along the support frame 2 can be realized. When the limit block 5 moves, the first guide bar 1 is separated from the top of the guide block 9. Therefore, the movement interference of the guide block 9 on the movement of the first guide bar 1 can be reduced.

[0026] Embodiment 2: As Figure 1 - Figure 4 shown, a support bar 15 is lapped at the bottom of the support frame 2. The bottom of the insertion block 16 is fixedly connected to the base 3. A positioning bar 17 is fixedly connected to the top of the base 3. An installation member 10 is fixedly connected to one side of the base 3. An installation hole is provided at the top of the installation member 10. A suction cup 18 is fixedly connected to the bottom of the base 3. An anti-slip strip 19 is provided on one side of the suction cup 18. One side of the anti-slip strip 19 is fixedly connected to the base 3.

[0027] The insertion block 16 facilitates the installation and disassembly of the support frame 2 on the top of the base 3. The two symmetrically arranged support bars 15 can limit the installation area of the circuit board. The positioning bar 17 can be lapped with one side of the circuit board, thereby limiting the insertion depth of the circuit board inside the support bars 15, making the circuit board located below the support frame 2 and reducing the position deviation of the circuit board after installation. The installation member 10 can assist in the installation and fixation on both sides of the base 3. The anti-slip strip 19 can increase the friction at the bottom of the base 3. The suction cup 18 can improve the fitting effect between the bottom of the base 3 and the workbench, thereby reducing the displacement of the base 3 during use.

[0028] Usage method and working principle of the present device: First, use the suction cup 18 at the bottom of the base 3 to fit the bottom of the base 3 with the top of the processing table. When it is necessary to fix the base 3 again, install bolts between the mounting member 10 and the workbench, and then insert the circuit board between the two support bars 15 until one side of the circuit board abuts against the positioning bar 17. Then, select the usage direction of the guide block 9. When the guide bar 1 and the guide bar 8 are used horizontally, rotate the guide block 9 on the top of the guide bar 1 to move the limit block 5 and the guide cylinder 7 above the guide bar 1. Then, use the limit pin 11 to insert between the steering wheel 12 and the support member 14 to fix the position of the guide bar 8. Then, rotate the threaded rod 4 on one side of the support frame 2. The threaded rod 4 drives the guide block 9 and the guide bar 1 to move, changing the position of the guide bar 1 on the top of the support frame 2. When it moves above the drilling position of the circuit board, pass the drill bit through the guide cylinder 7 to drill the circuit board;

[0029] When the guide bar 8 and the guide bar 1 are kept in a vertical state, insert the limit pin 11 between the steering wheel 12 and the support member 14, and rotate the positioning block 13 at the bottom of the limit block 5 to make the positioning block 13 rotate towards the side close to the support frame 2 until one side of the positioning block 13 abuts against the support frame 2. At this time, separate the top of the guide block 9 from the guide bar 1, and then move the limit block 5 along the support frame 2. At this time, the guide bar 1 moves above the support frame 2 along with the limit block 5. When reaching the specified position, use the insertion pin to insert into the positioning holes 6 on the limit block 5 and the support frame 2, and then pass the drill bit through the guide cylinder 7 to drill the circuit board.

[0030] The above is only the preferred embodiment of the present invention, and it is not a limitation to the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A drilling protection cover plate for a rigid-flex printed circuit board, comprising a base (3), wherein a plug-in block (16) is fixedly connected to the top of the base (3), and is characterized in that: A support frame (2) is snap-fitted to the top of the plug-in block (16). A guiding mechanism is arranged at the top of the support frame (2). The guiding mechanism comprises a first guiding strip (1), a limiting block (5) and a second guiding strip (8). The bottom of the first guiding strip (1) is slidably connected to the support frame (2). A guiding block (9) is snap-fitted to the bottom of the first guiding strip (1). One side of the guiding block (9) is snap-fitted in the support frame (2) and is slidably connected to the support frame (2). A support member (14) is fixedly connected to the bottom of the first guiding strip (1). A steering wheel (12) is rotatably connected to the top of the support member (14). A limiting pin (11) is inserted between the steering wheel (12) and the support member (14), and one side of the limiting pin (11) is fixedly connected to the second guiding strip (8). A guiding cylinder (7) is fixedly connected to the top of the second guiding strip (8), and one side of the second guiding strip (8) is fixedly connected to the limiting block (5).

2. The drilling protection cover plate of the rigid-flex printed circuit board according to claim 1, characterized in that: The bottom of the limiting block (5) is slidably connected to the support frame (2). A positioning block (13) is connected to the bottom of the limiting block (5) through a damping rotating shaft. The positioning block (13) is slidably connected to one side of the support frame (2).

3. The drilling protection cover plate of the rigid-flex printed circuit board according to claim 1, characterized in that: Positioning holes (6) are formed in the top of the support frame (2), and positioning holes (6) are also formed in the top of the limiting block (5).

4. The drilling protection cover plate of the rigid-flex printed circuit board according to claim 1, wherein: A threaded rod (4) is inserted through the support frame (2). One end of the threaded rod (4) is rotatably connected to the support frame (2), and the threaded rod (4) is threadedly connected to the guiding block (9). One side of the guiding block (9) is slidably connected to the support frame (2).

5. The drilling protection cover plate of the rigid-flex printed circuit board according to claim 1, characterized in that: A support strip (15) is lapped on the bottom of the support frame (2). The bottom of the plug-in block (16) is fixedly connected to the base (3).

6. The drilling protection cover plate of the rigid-flex printed circuit board according to claim 1, characterized in that: A positioning strip (17) is fixedly connected to the top of the base (3). A mounting member (10) is fixedly connected to one side of the base (3). Mounting holes are formed in the top of the mounting member (10).

7. The drilling protection cover plate of the rigid-flex printed circuit board according to claim 1, wherein: A suction cup (18) is fixedly connected to the bottom of the base (3). An anti-slip strip (19) is arranged on one side of the suction cup (18). One side of the anti-slip strip (19) is fixedly connected to the base (3).

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