Circuit board pressing jig

Abstract

The utility model relates to the field of circuit board processing, and discloses a circuit board press-fit jig which comprises a workbench, a hydraulic cylinder and a rotating disc installed on the surface of the workbench. The motor is connected with a rotating shaft at the bottom of the rotating disc; the positioning grooves are annularly distributed around the center line of the rotating disc; the mounting grooves are symmetrically formed in the two sides of the positioning groove; the limiting plate is movably mounted in the mounting groove through a rotating shaft; the pressure spring is fixed in the mounting groove, and one side of the pressure spring is connected with the side wall of the limiting plate. According to the utility model, the rotating disc is arranged above the workbench, the surface of the rotating disc is provided with the plurality of positioning grooves, and the circuit boards are arranged in the positioning grooves, so that the positioning grooves correspond to the pressing plates one by one through the rotation of the rotating disc, and the pressed circuit boards are moved away from the lower parts of the pressing plates along with the rotation of the rotating disc; a worker can conveniently stand on the side of the pressing device to replace the circuit board, manual operation directly under the pressing plate is not needed, and the safety of pressing operation is effectively enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing, in particular to a circuit board pressing fixture. Background Art

[0002] A circuit board, usually referring to a printed circuit board. Specifically, by etching away the unwanted copper foil on the copper clad laminate and only retaining the required copper foil to form a circuit pattern, a printed circuit board is formed. Among them, circuit boards can be divided into single-layer boards, double-layer boards and multi-layer boards according to their structures.

[0003] In the prior art, when producing multi-layer circuit boards, personnel often need to place and take out circuit boards under the pressing plate of the press. Such operations have relatively large potential safety hazards. Once the personnel do not operate in time, the pressing plate of the press is very likely to accidentally injure the hands of the personnel, causing serious personal harm. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a circuit board pressing fixture, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solutions:

[0006] The utility model discloses a circuit board pressing fixture, which includes a workbench and a hydraulic cylinder fixed by an L-shaped support plate. The bottom of the hydraulic cylinder is fixed with a pressing plate.

[0007] A rotating disk, which is movably installed on the surface of the workbench through a rotating shaft.

[0008] A motor, whose transmission end is connected to the rotating shaft at the bottom of the rotating disk.

[0009] Positioning grooves, which are distributed in a ring around the center line of the rotating disk.

[0010] Installation grooves, which are symmetrically opened on both sides of the positioning grooves.

[0011] Limit plates, which are movably installed inside the installation grooves through rotating shafts.

[0012] Compression springs, which are fixed inside the installation grooves and are connected to the side walls of the limit plates at one side.

[0013] Furthermore, a support box is fixed at the position corresponding to the pressing plate on the surface of the workbench. A plurality of movable grooves are opened inside the support box, and a number of balls are installed inside the movable grooves.

[0014] Furthermore, a conveyor belt is installed on the side of the workbench through a support frame.

[0015] Furthermore, on both sides of the end of the conveyor belt close to the workbench, there are support plates, and guide plates are installed on the surfaces of the support plates through fixed shafts.

[0016] Furthermore, a number of rubber columns made of flexible materials are fixed on the surface of the conveyor belt.

[0017] Furthermore, through holes are provided at the bottom of the positioning grooves corresponding to the positions of the rubber columns.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. The utility model installs a rotating disk above the workbench, and a number of positioning grooves are provided on the surface of the rotating disk. The circuit board is placed inside the positioning grooves, so that the positioning grooves are sequentially aligned with the pressing plates through the rotation of the rotating disk. The pressed circuit board is removed from below the pressing plate as the rotating disk rotates, which facilitates the staff to replace the circuit board on the side of the pressing device without directly manually operating directly below the pressing plate, effectively enhancing the safety of the pressing operation. Description of the Drawings

[0020] Figure 1 is a three-dimensional structure diagram of the utility model;

[0021] Figure 2 is a structural sectional view of the utility model;

[0022] Figure 3 is a partial sectional view of the rotating disk in the utility model;

[0023] Figure 4 is a partial sectional view of the support box in the utility model;

[0024] The reference numerals in the drawings respectively represent: 1, workbench; 2, rotating disk; 3, motor; 4, positioning groove; 5, installation groove; 6, limiting plate; 7, compression spring; 8, hydraulic cylinder; 9, support box; 10, movable groove; 11, ball; 12, conveyor belt; 13, guide plate; 14, rubber column; 15, through hole. Detailed Embodiment

[0025] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1-4, including a workbench 1 and a hydraulic cylinder 8 fixed by an L-shaped support plate. A pressing plate is fixed at the bottom of the hydraulic cylinder 8. A rotating disk 2 is movably installed on the surface of the workbench 1 through a rotating shaft. A motor 3 has its driving end connected to the rotating shaft at the bottom of the rotating disk 2. The motor 3 can drive the rotating disk 2 to rotate through the rotating shaft. Positioning grooves 4 are distributed in a ring around the center line of the rotating disk 2. Through multiple groups of positioning grooves 4 opened on the surface of the rotating disk 2, multiple groups of circuit boards can be installed simultaneously, and by rotating the rotating disk 2, the circuit boards placed inside the positioning grooves 4 can be made to correspond to the pressing plate of the hydraulic cylinder 8 one by one. Thus, the pressing plate can be moved downward by the hydraulic cylinder 8 to perform a pressing operation on the circuit boards inside the positioning grooves 4. After being pressed, the circuit boards are removed from below the hydraulic cylinder 8 as the rotating disk 2 rotates, which is convenient for the staff to stand on the side of the pressing device to replace the circuit boards without directly manually operating directly below the pressing plate, effectively enhancing the safety of the pressing operation. Installation grooves 5 are symmetrically opened on both sides of the positioning grooves 4. A limiting plate 6 is movably installed inside the installation grooves 5 through a rotating shaft. A compression spring 7 is fixed inside the installation grooves 5 and is connected to the side wall of the limiting plate 6 at one side. By the compression spring 7, the limiting plate 6 is pushed to rotate inward into the positioning groove 4, causing a section of the space in the positioning groove 4 close to the limiting plate 6 to contract inward. When placing the circuit board inside the positioning groove 4, the circuit board is pushed into the positioning groove 4 from the outer ring direction of the rotating disk 2. When the circuit board contacts the limiting plate 6, the circuit board is centered and moved by the two limiting plates 6, thereby improving the accuracy of the position of the circuit board.

[0027] At the position on the surface of the workbench 1 corresponding to the pressing plate, a support box 9 is fixed. Multiple moving grooves 10 are opened inside the support box 9, and a number of balls 11 are installed inside the moving grooves 10. When the rotating disk 2 rotates, the bottom of the rotating disk 2 contacts the surface of the balls 11. Since the contact between the balls 11 and the rotating disk 2 is mostly point contact, the friction during the movement of the rotating disk 2 is reduced, and the balls 11 facilitate the turning of the rotating disk 2. When the hydraulic cylinder 8 drives the pressing plate to perform a pressing operation on the circuit boards inside the positioning grooves 4, the balls 11 can support the bottom of the rotating disk 2, which is beneficial to the stability during the pressing of the circuit boards.

[0028] A conveyor belt 12 is installed on the side of the workbench 1 through a support frame, and the height of the top surface of the conveyor belt 12 is flush with the bottom of the positioning groove 4. During the circuit board pressing operation, the position of the rotating disk 2 corresponds to that of one group of positioning grooves 4. The circuit board is placed on the surface of the conveyor belt 12 for transmission, so that the circuit board enters the positioning groove 4 through the conveyor belt 12, enabling the circuit board to perform a pipelined feeding operation and accelerating the pressing efficiency of the circuit board. On both sides of the conveyor belt 12 near one end of the workbench 1, there are support plates. The surface of the support plates is provided with guide plates 13 through fixed shafts. The guide plates 13 are centered and moved to adjust the size of the outlet between the guide plates 13, so that the circuit board can accurately enter the positioning groove 4. A number of rubber columns 14 made of flexible materials are fixed on the surface of the conveyor belt 12. The circuit board is arranged between two rubber columns 14. When the conveyor belt 12 is transmitting, the position of the circuit board is restricted by the guide plates 13. Through holes 15 are provided at the bottom of the positioning groove 4 corresponding to the positions of the rubber columns 14. When the conveyor belt 12 conveys the circuit board into the positioning groove 4, the rubber columns 14 continue to stand upright. One rubber column 14 in front of the circuit board first passes through the through hole 15, and then moves under the rotating disk 2 as the rotating disk 2 rotates. While one rubber column 14 behind the circuit board pushes the circuit board into the positioning groove 4. When the circuit board moves into the positioning groove 4, a part of the side of the through hole 15 away from the conveyor belt 12 is covered by the circuit board. When the second rubber column 14 passes through the through hole 15, due to the blockage of the circuit board, the rubber column 14 bends through its flexible characteristics, so that it can pass through the remaining gap of the through hole 15. When the rubber column 14 bends, the circuit board is further pushed into the positioning groove 4, making one side of the circuit board fit with the inside of the positioning groove 4, thereby improving the positioning accuracy of the circuit board.

[0029] Working principle: Multiple-layer circuit boards are stacked on the surface of conveyor belt 12 for transmission. When the circuit board moves to the side of workbench 1, the rotating disk 2 is driven by motor 3, so that one group of positioning grooves 4 corresponds to conveyor belt 12, enabling conveyor belt 12 to transmit the circuit board into positioning groove 4. When the circuit board enters positioning groove 4, the rubber column 14 behind the circuit board continues to move with conveyor belt 12, pushing the circuit board forward, further squeezing the circuit board between two limit plates 6. The two limit plates 6 perform centering processing on the circuit board to improve the position accuracy of the circuit board. When rubber column 14 passes through through-hole 15, rubber column 14 pushes the circuit board to the bottom of positioning groove 4, making one side of the circuit board fit against the inner wall of positioning groove 4, further improving the positioning of the circuit board. After the circuit board enters positioning groove 4, with the rotation of rotating disk 2, it moves to directly below the pressing plate. The pressing plate is driven by hydraulic cylinder 8 to move downward to perform a pressing operation on the multiple-layer circuit boards inside positioning groove 4. During pressing, the ball 11 provided below rotating disk 2 can support the pressing position to maintain the stability of rotating disk 2. After the circuit board pressing is completed, with the continuous rotation of rotating disk 2, the pressed circuit board is moved away from below the pressing plate, facilitating the removal of the circuit board from positioning groove 4 from the side of the pressing plate.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circuit board pressing jig, comprising a workbench (1) and a hydraulic cylinder (8) fixed by an L-shaped support plate, wherein a pressing plate is fixed at the bottom of the hydraulic cylinder (8). It is characterized in that Also included are: A rotating disk (2) is movably mounted on the surface of the workbench (1) via a rotating shaft; A motor (3), the transmission end of which is connected to the rotating shaft at the bottom of the rotating disk (2); The positioning groove (4) is divided into annular sections around the center line of the rotating disk (2); The mounting grooves (5) are symmetrically arranged on both sides of the positioning groove (4); A limit plate (6) is movably mounted inside the mounting groove (5) via a rotating shaft; The compression spring (7) is fixed inside the installation groove (5), and one side of the compression spring is connected to the side wall of the limiting plate (6).

2. The circuit board pressing jig according to claim 1, characterized in that: A support box (9) is fixed on the surface of the workbench (1) at a position corresponding to the pressure plate, and a plurality of groups of movable grooves (10) are provided inside the support box (9), and a plurality of balls (11) are installed inside the movable grooves (10).

3. The circuit board pressing jig according to claim 1, characterized in that: A conveyor belt (12) is installed on the side of the workbench (1) via a support frame.

4. The circuit board pressing jig according to claim 3, characterized in that: Support plates are arranged on both sides of one end of the conveyor belt (12) close to the workbench (1), and guide plates (13) are installed on the surface of the support plates via fixed shafts.

5. The circuit board pressing jig according to claim 3, characterized in that: A plurality of rubber columns (14) made of flexible material are fixed on the surface of the conveyor belt (12).

6. The circuit board pressing jig according to claim 1, characterized in that: A through hole (15) is provided at the bottom of the positioning groove (4) at a position corresponding to the rubber column (14).

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