Clamping and positioning device for laser drilling of circuit boards

Abstract

The utility model relates to the technical field of circuit boards, in particular to a clamping and positioning device for laser punching of circuit boards, comprising a base plate and two supporting frames arranged side by side, wherein one supporting frame is slidably connected to the base plate, and the other supporting frame is fixedly connected to the base plate, each of the supporting frames is rotatably connected to a rotating shaft 1 and a rotating shaft 2, and the rotating shaft 1 and the rotating shaft 2 are vertically arranged, and a clamp is arranged on one end of the two rotating shafts 1 close to each other, the rotating shaft 1 is fixed with a bevel gear 1, and the rotating shaft 2 is fixed with a bevel gear 2 meshing with the bevel gear 1; one of the rotating shafts 2 is rotatably connected to one end of a connecting arm 1, and the other end of the connecting arm 1 is rotatably connected to an intermediate shaft, the intermediate shaft is rotatably connected to one end of a connecting arm 2, and the other end of the connecting arm 2 is rotatably connected to another rotating shaft 2; the two rotating shafts 2 are both transmission-connected to the intermediate shaft; the structure is simple, and the synchronous action of the two clamps can be achieved by adopting a single power, which reduces the use cost and makes maintenance more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a clamping and positioning device for laser punching of circuit boards. Background Art

[0002] The circuit board is one of the essential basic components in electronic devices. It is made of an insulating substrate material with conductive paths, printed pads and other design features printed on it to mechanically support and electrically connect electronic components. Modern PCBs usually adopt a multi-layer design, containing multiple layers of copper foil lines, and achieve electrical connections between layers through drilling and metallization processes. Circuit boards not only reduce the number of connections in electronic devices, but also improve assembly efficiency and reliability. They are widely used in various electronic products from home appliances to aerospace.

[0003] When performing laser drilling, the circuit board needs to be clamped and positioned. In some operations, the circuit board also needs to be flipped. The clamping and positioning device in the prior art has the following shortcomings: Since two clamps clamp the circuit board, two powers are required to simultaneously drive the clamps to rotate when flipping, which not only increases the cost, but also requires a complex control program. Once the two powers do not move synchronously, the circuit board will be damaged. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a clamping and positioning device for laser punching of circuit boards, which has a simple structure and can realize synchronous action of two clamps by using a single power, thereby reducing the use cost and making maintenance more convenient.

[0005] The clamping and positioning device for laser punching of a circuit board of the utility model comprises a base plate and two supporting frames arranged side by side, wherein one supporting frame is slidably connected to the base plate, and the other supporting frame is fixedly connected to the base plate, each supporting frame is rotatably connected to a first rotating shaft and a second rotating shaft, and the first rotating shaft is vertically arranged with the second rotating shaft, a clamp is arranged on one end of the two rotating shafts close to each other, the first rotating shaft is fixed with a first bevel gear, and the second rotating shaft is fixed with a second bevel gear meshing with the first bevel gear;

[0006] One of the rotating shafts 2 is rotatably connected to one end of the connecting arm 1, the other end of the connecting arm 1 is rotatably connected to the intermediate shaft, the intermediate shaft is rotatably connected to one end of the connecting arm 2, and the other end of the connecting arm 2 is rotatably connected to the other rotating shaft 2;

[0007] The two rotating shafts are both drivingly connected with the intermediate shaft.

[0008] As a preferred solution of the utility model, a motor is arranged at one end of one of the rotating shafts.

[0009] As a preferred solution of the utility model, the clamp includes a fixing frame fixedly connected to one end of the rotating shaft, and the fixing frame is used to support the end of the circuit board;

[0010] Along the vertical direction of the fixing frame, the fixing frame is slidably provided with an optical axis, the bottom end of the optical axis is a pressing plate, and the top end of the optical axis is a connecting plate;

[0011] The connecting plate is provided with an oblique hole, the fixing frame is provided with a linear mechanism, and the output end of the linear mechanism is a power shaft passing through the oblique hole.

[0012] As a preferred solution of the utility model, a pressure sensor is arranged at the bottom of the pressing plate.

[0013] As a preferred solution of the utility model, a power mechanism is arranged on the top of the base plate, and an output end of the power mechanism is fixedly connected to one of the support frames.

[0014] As a preferred solution of the utility model, the two rotating shafts are connected to the intermediate shaft through a sprocket chain transmission.

[0015] As a preferred solution of the utility model, a track is fixed on the top of the base plate, and one of the support frames is slidably connected to the track.

[0016] As a preferred solution of the present invention, the pressing plate is made of flexible material.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows: when the circuit board needs to be clamped during use, one end of the circuit board is placed on a fixed-position clamp, and then the power mechanism is operated to make the other clamp slide along the track toward the other end of the circuit board until the two clamps respectively clamp the circuit board and stop. In this process, since the connecting arm 1 and the connecting arm 2 are rotatably connected to the rotating shaft 2, there will be no interference with the movement of the support frame. In order to adapt to the change in the distance between the two support frames, the angle of the connecting arm 1 and the connecting arm 2 changes; when the circuit board needs to be flipped, the motor is operated to rotate the rotating shaft 1 connected thereto, and with the cooperation of the bevel gear 1, the bevel gear 2, the sprocket and the chain, the other rotating shaft 1 is driven to rotate synchronously, and the direction of rotation is the same. Compared with the prior art, the device only needs one power to drive the two clamps to rotate synchronously, which reduces the cost of use, does not require a complicated control program, and is more convenient for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 yes Figure 1 A front view of

[0020] Figure 3It is a structural schematic diagram of a support frame, a motor, a first rotating shaft, a second rotating shaft and a fixture;

[0021] Markings in the attached drawings: 1. Base plate; 2. Support frame; 3. Rotating shaft 1; 4. Rotating shaft 2; 5. Bevel gear 1; 6. Bevel gear 2; 7. Connecting arm 1; 8. Intermediate shaft; 9. Connecting arm 2; 10. Motor; 11. Fixed frame; 12. Optical axis; 13. Pressing plate; 14. Connecting plate; 15. Oblique hole; 16. Linear mechanism; 17. Power shaft; 18. Power mechanism; 19. Chain; 20. Track. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the "embodiment" referred to herein refers to a specific feature, structure or characteristic that can be included in at least one implementation of the utility model. The "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. Example

[0025] Reference Figure 1-Figure 3 , this embodiment provides a clamping and positioning device for laser drilling of a circuit board, comprising a base plate 1 and two support frames 2 arranged side by side, one of the support frames 2 being slidably connected to the base plate 1, more specifically, a power mechanism 18 is arranged on the top of the base plate 1, an output end of the power mechanism 18 is fixedly connected to one of the support frames 2, a track 20 is fixed on the top of the base plate 1, one of the support frames 2 is slidably connected to the track 20;

[0026] Another support frame 2 is fixedly connected to the bottom plate 1, and each support frame 2 is rotatably connected to a rotating shaft 1 3 and a rotating shaft 2 4, and the rotating shaft 1 3 is vertically arranged with the rotating shaft 2 4, and a clamp is arranged on one end of the two rotating shafts 1 3 close to each other, and the rotating shaft 1 3 is fixed with a bevel gear 1 5, and the rotating shaft 2 4 is fixed with a bevel gear 2 6 meshing with the bevel gear 1 5;

[0027] One of the rotating shafts 2 4 is rotatably connected to one end of a connecting arm 1 7, the other end of the connecting arm 1 7 is rotatably connected to an intermediate shaft 8, the intermediate shaft 8 is rotatably connected to one end of a connecting arm 2 9, the other end of the connecting arm 2 9 is rotatably connected to another rotating shaft 2 4;

[0028] The two rotating shafts 2 4 are both connected to the intermediate shaft 8 by transmission. More specifically, the two rotating shafts 2 4 are connected to the intermediate shaft 8 by transmission through a sprocket chain 19. The two sprockets supporting the same chain 19 are of the same model. A motor 10 is provided at one end of one of the rotating shafts 1 3 .

[0029] In this embodiment, when it is necessary to clamp the circuit board during use, one end of the circuit board is placed on a fixed fixture, and then the power mechanism 18 is operated to make the other fixture slide along the track 20 toward the other end of the circuit board until the two fixtures respectively clamp the two ends of the circuit board and stop. In this process, since the connecting arm 1 7 and the connecting arm 2 9 are rotatably connected to the rotating shaft 2 4, there will be no interference with the movement of the support frame 2. In order to adapt to the change in the distance between the two support frames 2, the angle of the connecting arm 1 7 and the connecting arm 2 9 changes; when it is necessary to flip the circuit board, the motor 10 is operated to rotate the rotating shaft 1 3 connected thereto, and with the cooperation of the bevel gear 1 5, the bevel gear 2 6, the sprocket and the chain 19, the other rotating shaft 1 3 is driven to rotate synchronously, and the direction of rotation is the same. Compared with the prior art, the device only needs one power to drive the two fixtures to rotate synchronously, which reduces the cost of use, does not require a complicated control program, and is more convenient for maintenance.

[0030] As a preferred solution of the utility model, the clamp includes a fixing frame 11 fixedly connected to the end of the rotating shaft 3, the fixing frame 11 is door-shaped, and the fixing frame 11 is used to support the end of the circuit board; along the vertical direction of the fixing frame 11, the fixing frame 11 is slidably provided with an optical axis 12, the bottom end of the optical axis 12 is a pressing plate 13, and the top end of the optical axis 12 is a connecting plate 14; the connecting plate 14 is provided with an inclined hole 15, and the fixing frame 11 is provided with a linear mechanism 16, the linear mechanism 16 adopts a linear motor 10, and the output end of the linear mechanism 16 is a power shaft 17 passing through the inclined hole 15, and there is an angle between the inclined hole 15 and the moving trajectory of the power shaft 17; a pressure sensor is provided at the bottom of the pressing plate 13, and the pressing plate 13 is made of a flexible material to reduce damage to the circuit board;

[0031] In this embodiment, when in use, after the end of the circuit board is inside the fixing frame 11, the linear mechanism 16 is operated to translate the power shaft 17. Since there is an angle between the inclined hole 15 and the moving trajectory of the power shaft 17, the lifting and lowering of the pressure plate 13 and the pressure sensor can be controlled. The pressure sensor can test the pressure intensity. When the pressure is sufficient, the pressure sensor controls the linear mechanism 16 to stop to prevent the circuit board from being over-squeezed.

[0032] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0033] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A clamping and positioning device for laser drilling of circuit boards, characterized in that: It comprises a base plate (1) and two support frames (2) arranged side by side, wherein one support frame (2) is slidably connected to the base plate (1), and the other support frame (2) is fixedly connected to the base plate (1), each of the support frames (2) is rotatably connected to a first rotating shaft (3) and a second rotating shaft (4), and the first rotating shaft (3) and the second rotating shaft (4) are arranged vertically, and a clamp is arranged at one end of the two rotating shafts (3) close to each other, and the first rotating shaft (3) is fixed with a bevel gear (5), and the second rotating shaft (4) is fixed with a bevel gear (6) meshing with the first bevel gear (5); One of the rotating shafts 2 (4) is rotatably connected to one end of the connecting arm 1 (7), the other end of the connecting arm 1 (7) is rotatably connected to the intermediate shaft (8), the intermediate shaft (8) is rotatably connected to one end of the connecting arm 2 (9), and the other end of the connecting arm 2 (9) is rotatably connected to the other rotating shaft 2 (4); The two rotating shafts (4) are both drivingly connected to the intermediate shaft (8).

2. The clamping and positioning device for laser drilling of a circuit board according to claim 1, characterized in that: A motor (10) is disposed at one end of one of the rotating shafts (3).

3. The clamping and positioning device for laser drilling of a circuit board as claimed in claim 2, characterized in that: The clamp comprises a fixing frame (11) fixedly connected to the end of the rotating shaft (3), and the fixing frame (11) is used to support the end of the circuit board; An optical axis (12) is slidably disposed on the fixing frame (11) along the vertical direction of the fixing frame (11), the bottom end of the optical axis (12) is a pressing plate (13), and the top end of the optical axis (12) is a connecting plate (14); The connecting plate (14) is provided with an oblique hole (15), the fixing frame (11) is provided with a linear mechanism (16), and the output end of the linear mechanism (16) is a power shaft (17) passing through the oblique hole (15).

4. The clamping and positioning device for laser drilling of a circuit board as claimed in claim 3, characterized in that: A pressure sensor is provided at the bottom of the pressing plate (13).

5. The clamping and positioning device for laser drilling of a circuit board as claimed in claim 1, characterized in that: A power mechanism (18) is arranged on the top of the bottom plate (1), and an output end of the power mechanism (18) is fixedly connected to one of the support frames (2).

6. The clamping and positioning device for laser drilling of a circuit board as claimed in claim 1, characterized in that: The two rotating shafts (4) are both connected to the intermediate shaft (8) via a sprocket chain (19).

7. The clamping and positioning device for laser drilling of a circuit board as claimed in claim 5, characterized in that: A track (20) is fixed on the top of the bottom plate (1), and one of the support frames (2) is slidably connected to the track (20).

8. The clamping and positioning device for laser drilling of a circuit board as claimed in claim 4, characterized in that: The pressing plate (13) is made of a flexible material.

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