Compressing and fixing device of circuit board

Abstract

The utility model discloses a compressing and fixing device of a circuit board, which comprises a shell, sliding holes are arranged on the upper end face of the shell and at four corners, sliding rods are arranged in the sliding holes in a sliding manner, racks are arranged on the outer walls of the sliding rods, and the racks are arranged on the upper end face of the shell. Rotating shafts are rotationally arranged on the portions, located on the outer wall of the shell, of one sides of the racks, gears are arranged on the rotating shafts, the gears are engaged with the racks, belt wheels are arranged at the other ends of the rotating shafts, belts are arranged in the middles of the two belt wheels, and racks are arranged on the two side faces of the shell. Motors are arranged on the outer walls of the racks, and the output ends of the motors are fixedly mounted with the rotating shafts, so that a user can control the motors to rotate the gears, and at the moment, the gears drive the sliding rods to move up and down through the racks, so that the multiple layers of circuit boards are pressed and fixed by the pressing plates, and the multiple layers of circuit boards are quickly bonded and are convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board fixing, and more specifically, to a pressing and fixing device for a circuit board. Background Art

[0002] A multilayer circuit board refers to a circuit board having more than three conductive graphic layers and insulating materials therebetween laminated in layers. In the process of processing the multilayer circuit board, the conductive graphic layer, insulating layer and printed board that constitute the circuit board are assembled by bonding them together. During the assembly process, a clamping and fixing device is required to clamp and fix the multilayer circuit board to achieve better bonding effect. However, the traditional clamping and fixing device is cumbersome to operate and requires manual adjustment of the height of the clamping device. The inconvenient operation reduces the production efficiency of the circuit board; and the clamping position cannot be freely adjusted according to the size of the circuit board, resulting in poor bonding effect for smaller circuit boards. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the problems existing in the prior art, the utility model provides a clamping and fixing device for a circuit board to solve the technical problem mentioned in the background technology that the traditional clamping and fixing device is cumbersome to operate and requires manual adjustment of the height of the clamping device, and the inconvenience in operation reduces the production efficiency of the circuit board.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamping and fixing device for a circuit board, comprising a shell, wherein sliding holes are opened on the upper end surface of the shell and on four corners, sliding rods are slidably provided inside the sliding holes, racks are provided on the outer walls of the sliding rods, a rotating shaft is rotatably provided on one side of the rack and on the outer wall of the shell, a gear is provided on the rotating shaft, the gear is meshed and installed with the rack, a pulley is provided at the other end of the rotating shaft, a belt is provided at the middle position of the two pulleys, frames are provided on both side surfaces of the shell, motors are provided on the outer wall of the frame, the output ends of the motors are fixedly installed with the rotating shaft, a square frame is fixedly provided on the upper end surface of the sliding rod, and adjustment blocks are provided inside the square frame and on both sides.

[0007] The utility model is further configured such that threaded holes are provided on both sides of the square frame, threaded rods are provided inside the threaded holes, one end of the threaded rods passes through the threaded holes and is rotatably installed with the adjusting block, and the other end is fixed with a hand wheel, and a pressure plate is fixed on the lower end surface of the adjusting block to facilitate adjustment of the position of the pressure plate.

[0008] The utility model is further configured that sliding grooves are provided on the inner wall of the square frame and on both the front and rear sides, and a sliding block is correspondingly provided on the outer wall of the adjustment block. The sliding block is slidably installed with the sliding groove to facilitate guiding the adjustment block.

[0009] The utility model is further configured that an accommodating groove is provided on the upper end surface of the shell, a circular groove is provided in the middle of the accommodating groove, and a top plate is provided inside the circular groove, so as to facilitate the placement and positioning of the multi-layer circuit board.

[0010] The utility model is further configured such that a guide hole is provided in the middle of the circular groove, a guide rod is provided on the lower end surface of the top plate, and the guide rod is slidably mounted with the guide hole to facilitate ejection of the circuit board for easy taking.

[0011] The utility model is further configured such that the lower end of the guide rod passes through the guide hole and is fixedly provided with a pressing block, the upper end surface of the pressing block is fixedly provided with a spring, and the other end of the spring is fixedly connected to the inner wall of the shell to facilitate the movement of the top plate.

[0012] The utility model is further configured such that the upper end surface of the top plate is flush with the bottom of the accommodating groove, which is convenient for placing the circuit board.

[0013] The utility model is further configured that a base is fixedly provided at the lower end of the shell to facilitate supporting the device.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a circuit board pressing and fixing device, which has the following beneficial effects:

[0016] 1. By setting sliding holes, sliding rods, racks, rotating shafts, gears, pulleys, belts, racks and motors, the user can control the motor to rotate the gears. At this time, the gears will drive the sliding rods to move up and down through the racks, so that the pressing plate can press and fix the multi-layer circuit board, making it quickly bonded and easy to operate.

[0017] 2. By setting a square frame, an adjustment block, a threaded hole, a threaded rod, a hand wheel and a pressure plate, the user can rotate the threaded rod by turning the hand wheel. At this time, the threaded rod will drive the adjustment block to slide inside the square frame to adjust the position of the pressure plate, thereby facilitating the pressing and fixing of different positions on the circuit board, so as to achieve better bonding effect for circuit boards of different sizes.

[0018] 3. By providing a receiving groove, a circular groove, a top plate, a guide hole, a guide rod, a pressing block and a spring, the user can press the pressing block upward to make the top plate push out the circuit board inside the receiving groove, making it easier to take it out. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall schematic diagram of a clamping and fixing device for a circuit board when it is not in use;

[0020] Figure 2 The figure is a schematic diagram of the installation of the sliding rod, the rack, the square frame, the adjustment block, the threaded rod, the pressure plate and the hand wheel;

[0021] Figure 3 It is a schematic diagram of the positions of the sliding hole, the receiving groove, the circular groove and the guide hole on the shell;

[0022] Figure 4 This is a schematic diagram of the installation of components inside the housing;

[0023] Figure 5 This is a schematic diagram of the installation of the top plate, guide rod, pressing block and spring.

[0024] In the figure: 1. shell; 2. sliding hole; 3. sliding rod; 4. rack; 5. rotating shaft; 6. gear; 7. pulley; 8. belt; 9. frame; 10. motor; 11. square frame; 12. adjustment block; 13. threaded hole; 14. threaded rod; 15. hand wheel; 16. pressure plate; 17. slide groove; 18. slider; 19. receiving groove; 20. circular groove; 21. top plate; 22. guide hole; 23. guide rod; 24. pressing block; 25. spring; 26. base. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0027] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0028] See also Figure 1-5A clamping and fixing device for a circuit board comprises a shell 1, wherein sliding holes 2 are provided on the upper end surface of the shell 1 and at four corners, wherein sliding rods 3 are slidably provided inside the sliding holes 2, wherein racks 4 are provided on the outer walls of the sliding rods 3, wherein rotating shafts 5 are rotatably provided on one side of the racks 4 and on the outer wall of the shell 1, wherein gears 6 are provided on the rotating shafts 5, wherein the gears 6 are meshed and installed with the racks 4, wherein pulleys 7 are provided on the other ends of the rotating shafts 5, wherein belts 8 are provided at the middle positions of the two pulleys 7, wherein racks 9 are provided on the two side surfaces of the shell 1, wherein motors 10 are provided on the outer walls of the racks 9, wherein the output ends of the motors 10 are fixedly installed with the rotating shafts 5, wherein a square frame 11 is fixedly provided on the upper end surface of the sliding rod 3, wherein adjusting blocks 12 are provided inside the square frame 11 and on both sides thereof.

[0029] In this embodiment, threaded holes 13 are provided on both sides of the square frame 11, and threaded rods 14 are provided inside the threaded holes 13. One end of the threaded rods 14 passes through the threaded holes 13 and is rotatably installed with the adjusting block 12, and the other end is fixed with a hand wheel 15. A pressure plate 16 is fixed on the lower end surface of the adjusting block 12. Slide grooves 17 are provided on the inner wall of the square frame 11 and on the front and rear sides. A slider 18 is correspondingly provided on the outer wall of the adjusting block 12, and the slider 18 is slidably installed with the slide groove 17.

[0030] More specifically, the user can control the motor 10 to rotate the gear 6, and the gear 6 will drive the sliding rod 3 to move up and down through the rack 4, so that the pressure plate 16 can press and fix the multi-layer circuit board, so that it can be quickly bonded and easy to operate, and the user can also rotate the threaded rod 14 by turning the hand wheel 15, and the threaded rod 14 will drive the adjustment block 12 to slide inside the square frame 11 to adjust the position of the pressure plate 16, thereby facilitating the pressing and fixing of different positions on the circuit board.

[0031] See also Figure 1 , Figure 4 and Figure 5 As an implementation method for ejecting the multi-layer circuit board after being pressed: a receiving groove 19 is provided on the upper end surface of the shell 1, a circular groove 20 is provided in the middle position of the receiving groove 19, a top plate 21 is provided inside the circular groove 20, a guide hole 22 is provided in the middle position of the circular groove 20, a guide rod 23 is provided on the lower end surface of the top plate 21, the guide rod 23 is slidably installed with the guide hole 22, the lower end of the guide rod 23 passes through the guide hole 22 and is fixed with a pressing block 24, the upper end surface of the pressing block 24 is fixed with a spring 25, the other end of the spring 25 is fixedly connected to the inner wall of the shell 1, and the upper end surface of the top plate 21 is flush with the bottom of the receiving groove 19.

[0032] Specifically, the user can press the pressing block 24 upward to cause the guide rod 23 to push out the top plate 21, so as to facilitate taking out the circuit board.

[0033] Please refer to Figure 1 As a further implementation method for supporting the device: a base 26 is fixedly provided at the lower end of the shell 1.

[0034] Specifically, the device can be supported to make it more stable.

[0035] To sum up, when the overall device is in use: the user can first place the multi-layer circuit board into the receiving groove 19, and then control the motor 10 to rotate the gear 6. At this time, the gear 6 will drive the sliding rod 3 to move up and down through the rack 4, so that the pressure plate 16 can press and fix the multi-layer circuit boards of different thicknesses. The user can also rotate the hand wheel 15 to rotate the threaded rod 14, so that the threaded rod 14 drives the adjustment block 12 to slide inside the square frame 11, and then adjust the position of the pressure plate 16, so as to facilitate the pressing and fixing of different positions on the circuit board, so as to make its bonding effect better. Finally, by pressing the pressing block 24 upward, the top plate 21 can push the circuit board inside the receiving groove 19 out, so as to facilitate its removal.

[0036] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A circuit board pressing and fixing device, comprising a housing (1), characterized in that: The upper end surface of the shell (1) and the four corners thereof are provided with sliding holes (2), the interior of the sliding holes (2) are slidably provided with sliding rods (3), the outer walls of the sliding rods (3) are provided with racks (4), one side of the racks (4) and the outer wall of the shell (1) are provided with rotating shafts (5), the rotating shafts (5) are provided with gears (6), the gears (6) are meshed and installed with the racks (4), the other ends of the rotating shafts (5) are provided with pulleys (7), the middle positions of the two pulleys (7) are provided with belts (8), the two side surfaces of the shell (1) are provided with frames (9), the outer walls of the frames (9) are provided with motors (10), the output ends of the motors (10) are fixedly installed with the rotating shafts (5), the upper end surface of the sliding rods (3) are fixedly provided with square frames (11), the interior of the square frames (11) and the two sides thereof are provided with adjustment blocks (12).

2. The circuit board pressing and fixing device according to claim 1, characterized in that: The two sides of the square frame (11) are provided with threaded holes (13), the inside of the threaded holes (13) is provided with threaded rods (14), one end of the threaded rods (14) passes through the threaded holes (13) and is rotatably mounted with the adjustment block (12), and the other end is fixed with a hand wheel (15), and the lower end surface of the adjustment block (12) is fixed with a pressing plate (16).

3. The circuit board pressing and fixing device according to claim 2, characterized in that: Slide grooves (17) are provided on the inner wall of the square frame (11) and on both the front and rear sides. A sliding block (18) is correspondingly provided on the outer wall of the adjustment block (12). The sliding block (18) is slidably mounted on the slide groove (17).

4. The circuit board pressing and fixing device according to claim 1, characterized in that: The upper end surface of the housing (1) is provided with a receiving groove (19), a circular groove (20) is provided in the middle of the receiving groove (19), and a top plate (21) is provided inside the circular groove (20).

5. The circuit board pressing and fixing device according to claim 4, characterized in that: A guide hole (22) is provided in the middle of the circular groove (20), and a guide rod (23) is provided on the lower end surface of the top plate (21), and the guide rod (23) is slidably mounted with the guide hole (22).

6. The circuit board pressing and fixing device according to claim 5, characterized in that: The lower end of the guide rod (23) passes through the guide hole (22) and is fixedly provided with a pressing block (24); the upper end surface of the pressing block (24) is fixedly provided with a spring (25); the other end of the spring (25) is fixedly connected to the inner wall of the housing (1).

7. The circuit board pressing and fixing device according to claim 4, characterized in that: The upper end surface of the top plate (21) is flush with the bottom of the accommodating groove (19).

8. The circuit board pressing and fixing device according to claim 1, characterized in that: A base (26) is fixedly provided at the lower end of the shell (1).

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