Fixing jig for processing printed circuit board

Abstract

The utility model discloses a fixing jig for processing a printed circuit board, which comprises a driving seat, a servo motor is mounted above the driving seat, and a conveying frame is arranged on one side of the driving seat; the telescopic rod is arranged on one side of the interior of the driving seat, a fixed block is installed at one end of the telescopic rod, the fixed block is connected with the telescopic rod in a clamped mode, a movable block is arranged on one side of the fixed block, a clamping plate is installed on one side of the movable block, and a positioning plate is fixedly installed above the outer side of the conveying frame; the rotating disc is arranged on the other side in the driving base, an output shaft of the servo motor is fixed to a shaft at the upper end of the rotating disc through a coupler, a connecting arm is installed between one side of the upper end face of the rotating disc and the other end of the telescopic rod, and the two ends of the connecting arm are connected with the telescopic rod and the rotating disc through rotating shafts correspondingly; the problem that the circuit boards need to be placed one by one when being clamped by a fixing jig, and the processing efficiency is affected when the circuit boards are taken out is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing fixtures, in particular to a fixing fixture used for printed circuit board processing. Background Art

[0002] Printed circuit boards are an indispensable part of modern electronic devices, and their quality directly affects the performance and stability of electronic devices. In the process of PCB processing, it is very important to ensure the stability and accuracy of the circuit board, and the fixture, as a key auxiliary tool for PCB processing, plays a pivotal role. The fixture is mainly used to fix the circuit board in PCB processing to ensure its stability and position accuracy during the processing.

[0003] For example, the Chinese authorized patent "Fixed tooling for printed circuit board processing" with announcement number CN219802689U includes an operating table, a positioning plate is fixed on the operating table, and a pressure plate that can slide along the guide rail is provided below the positioning plate; a limit block is provided in the center of the operating table, and a compression spring is provided between the limit block and the pressure plate for lifting, and the clamping plate realizes the clamping of the circuit board through the rotation of the turntable structure. A positioning plate is set at the upper end of the operating table as the upper limit of the circuit board, and a movable pressure plate is set as the lower limit of the circuit board. The movable pressure plate facilitates the pushing of the circuit board into the circuit board, and the lower end of the circuit board and the entire U-shaped part are fixed by the provided lifting block, limit block and clamping block. The clamping edge on the turntable and the pressure plate fit together to realize the clamping. Once the clamping is formed, the pressure plate cannot be moved without external force, which can reduce the offset.

[0004] Although the above-mentioned existing technology can achieve the clamping and fixing of the circuit board, as the production scale of printed circuit boards continues to expand, the existing technology requires the circuit boards to be placed and taken out one by one. The whole process is relatively cumbersome, which affects the processing efficiency of the printed circuit boards. Therefore, it does not meet the existing needs. In this regard, we propose a fixing fixture for printed circuit board processing. Utility Model Content

[0005] The utility model aims to provide a fixing fixture for printed circuit board processing, so as to solve the problem that the fixing fixture proposed in the above background technology needs to be placed and taken out one by one when clamping the circuit board, which affects the processing efficiency.

[0006] To achieve the above object, the utility model provides the following technical solution: a fixed fixture for printed circuit board processing, comprising a driving seat, a servo motor is installed above the driving seat, and a conveying frame is arranged on one side of the driving seat; and further comprising:

[0007] A telescopic rod, which is arranged on one side of the inside of the driving seat, and the telescopic rod and the driving seat are slidably limited, a fixed block is installed at one end of the telescopic rod, and the fixed block is clamped with the telescopic rod, a movable block is arranged on one side of the fixed block, a clamping plate is installed on one side of the movable block, and the clamping plate and the movable block are fixed by bolts, and a positioning plate is fixedly installed on the upper side of the outer side of the conveying frame, and the positions of the positioning plate and the clamping plate correspond to each other;

[0008] The turntable is arranged on the other side of the driving seat, and the output shaft of the servo motor is fixed to the shaft at the upper end of the turntable through a coupling. A connecting arm is installed between one side of the upper end surface of the turntable and the other end of the telescopic rod, and the two ends of the connecting arm are respectively connected to the telescopic rod and the turntable through a rotating shaft.

[0009] Preferably, one end of the movable block extends into the interior of the fixed block, and the movable block and the fixed block are slidably limited, and support springs are fixedly installed on both sides between the movable block and the fixed block.

[0010] Preferably, transmission rollers are provided at the front and rear of the conveying frame, and the transmission rollers are rotatably connected to the conveying frame, and a conveyor belt is installed between the two transmission rollers.

[0011] Preferably, a first pulley is fixedly mounted on the shaft at the lower end of the turntable, a second pulley is mounted on the front end of the other side of the driving seat, the shaft at the lower end of the second pulley is rotatably connected to the driving seat, and the second pulley is connected to the first pulley via a belt drive.

[0012] Preferably, a driving bevel gear is fixedly installed on the shaft at the upper end of the second pulley, a transmission shaft is fixedly installed on one end of the front transmission roller, and the transmission shaft extends to the interior of the driving seat, and a driven bevel gear is fixedly installed on one end of the transmission shaft located inside the driving seat, and the driven bevel gear is meshed and connected with the driving bevel gear.

[0013] Preferably, the upper end surface of the conveyor belt is at a height higher than the conveyor frame.

[0014] Preferably, rubber pads are bonded and fixed to the inner sides of the clamping plate and the positioning plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model utilizes the movement of the telescopic rod to fix the circuit board. By turning on the servo motor, its output shaft drives the turntable to rotate, thereby driving one end of the connecting arm to revolve around the center of the turntable, and the telescopic rod at the other end is limited by the slide groove of the driving seat. Therefore, as the connecting arm moves, the telescopic rod is driven to reciprocate. When the telescopic rod extends outward to the maximum distance, it indicates that the circuit board has reached the fixed position, otherwise it indicates a loose state. The mechanism can quickly clamp the circuit board, thereby improving processing efficiency.

[0017] 2. The utility model is provided with a conveying and clamping linkage structure, and the servo motor always rotates in one direction. With the cooperation of the turntable and the connecting arm, the telescopic rod is driven to keep reciprocating, so as to switch between the clamping / loosening working conditions. The first pulley at the lower end of the turntable cooperates with the belt to drive the second pulley to rotate. Through the active bevel gear above the second pulley, the transmission shaft is driven to rotate under the meshing of the active bevel gear and the driven bevel gear. One end of the transmission shaft is connected to the transmission roller inside the conveying frame, so as to drive the conveyor belt to move under the action of friction. Then, no matter what working condition the clamping plate is in, the conveyor belt can realize the movement of the circuit board, thereby reducing the involvement of the transportation equipment and saving the equipment cost. At the same time, there is no need to place and take out one by one during the processing, which effectively improves the production efficiency.

[0018] 3. The utility model is provided with a clamping mechanism, so that the clamping plate can contact the circuit board when the telescopic rod has not reached the maximum extension distance. As the telescopic rod continues to extend, on the one hand, the clamping plate applies pressure to the circuit board, so that the conveyor belt cannot drive the circuit board to continue to move. On the other hand, the movable block at one end of the clamping plate extends toward the inside of the fixed block, and at the same time the support spring reacts to the movable block, so that the positioning plate and the clamping plate fix the circuit board, forming the firmness of the circuit board at this position, so as to cooperate with the processing equipment. After processing, as the turntable continues to rotate, the telescopic rod gradually shrinks and loses its clamping of the circuit board, and cooperates with the conveyor belt to move it out of the fixed position to facilitate the entry of the next circuit board to be processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 It is a top view of the internal structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the drive seat of the utility model;

[0022] Figure 4 This is a schematic diagram of the transmission roller driving structure of the utility model.

[0023] In the figure: 1. driving seat; 2. conveying frame; 3. transmission roller; 4. conveyor belt; 5. positioning plate; 6. servo motor; 7. telescopic rod; 8. fixed block; 9. movable block; 10. clamping plate; 11. turntable; 12. connecting arm; 13. supporting spring; 14. first pulley; 15. second pulley; 16. driving bevel gear; 17. driven bevel gear; 18. belt; 19. transmission shaft. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] See also Figure 1-4 The utility model provides an embodiment: a fixing fixture for printed circuit board processing, including a driving seat 1, a servo motor 6 is installed above the driving seat 1, and a conveying frame 2 is arranged on one side of the driving seat 1; and also includes:

[0026] A telescopic rod 7 is arranged at one side of the inside of the driving seat 1, and the telescopic rod 7 and the driving seat 1 are slidably limited, a fixed block 8 is installed at one end of the telescopic rod 7, and the fixed block 8 is clamped with the telescopic rod 7, a movable block 9 is arranged at one side of the fixed block 8, a clamping plate 10 is installed at one side of the movable block 9, and the clamping plate 10 and the movable block 9 are fixed by bolts, and a positioning plate 5 is fixedly installed above the outer side of the conveying frame 2, and the position of the positioning plate 5 corresponds to that of the clamping plate 10;

[0027] The turntable 11 is arranged on the other side of the driving seat 1, and the output shaft of the servo motor 6 is fixed to the shaft at the upper end of the turntable 11 through a coupling. A connecting arm 12 is installed between one side of the upper end surface of the turntable 11 and the other end of the telescopic rod 7, and the two ends of the connecting arm 12 are respectively connected to the telescopic rod 7 and the turntable 11 through a rotating shaft.

[0028] When in use, by turning on the servo motor 6, its output shaft drives the turntable 11 to rotate, thereby driving one end of the connecting arm 12 to revolve around the center of the turntable 11 as the origin, and the telescopic rod 7 at the other end is limited by the slide groove of the driving seat 1, so as to drive the telescopic rod 7 to reciprocate with the movement of the connecting arm 12. When the telescopic rod 7 extends outward to the maximum distance, it indicates that the fixed position of the circuit board is reached, otherwise it indicates a loose state. The servo motor 6 always rotates in one direction, and with the cooperation of the turntable 11 and the connecting arm 12, the telescopic rod 7 maintains reciprocating movement, thereby switching between the clamping / relaxing working conditions. The first pulley 14 at the lower end of the turntable 11 cooperates with the belt 18 to drive the second pulley 15 to rotate. Through the active bevel gear 16 above the second pulley 15, the transmission shaft 19 is driven to rotate under the meshing of the active bevel gear 16 and the driven bevel gear 17. One end of the transmission shaft 19 is connected to the transmission roller 3 inside the conveying frame 2, thereby driving the conveyor belt 4 to move under the action of friction. Therefore, no matter what working condition the clamping plate 10 is in, the conveyor belt 4 can realize the movement of the circuit board.

[0029] See also Figure 2 One end of the movable block 9 extends to the inside of the fixed block 8, and the movable block 9 and the fixed block 8 are slidably limited. Support springs 13 are fixedly installed on both sides between the movable block 9 and the fixed block 8 to improve the firmness of clamping the circuit board.

[0030] See also Figure 1 and Figure 4 Transmission rollers 3 are arranged at the front and rear of the conveying frame 2, and the transmission rollers 3 are rotatably connected to the conveying frame 2. A conveyor belt 4 is installed between the two transmission rollers 3, which reduces the involvement of transportation equipment and saves equipment costs. At the same time, there is no need to place and take out one by one during the processing process, which effectively improves production efficiency.

[0031] See also Figure 2 , Figure 3 and Figure 4 A first pulley 14 is fixedly installed on the shaft at the lower end of the turntable 11, and a second pulley 15 is installed on the front end of the other side of the driving seat 1. The shaft at the lower end of the second pulley 15 is rotatably connected to the driving seat 1, and the second pulley 15 is connected to the first pulley 14 through a belt 18 to realize the linkage structure between the conveying mechanism and the clamping mechanism.

[0032] See also Figure 3 and Figure 4 A driving bevel gear 16 is fixedly installed on the shaft at the upper end of the second pulley 15, a transmission shaft 19 is fixedly installed on one end of the front transmission roller 3, and the transmission shaft 19 extends to the inside of the driving seat 1, and a driven bevel gear 17 is fixedly installed on one end of the transmission shaft 19 located inside the driving seat 1, and the driven bevel gear 17 is meshed and connected with the driving bevel gear 16.

[0033] See also Figure 1 The height of the upper end surface of the conveyor belt 4 is higher than that of the conveyor frame 2.

[0034] Furthermore, rubber pads are bonded and fixed to the inner sides of the clamping plate 10 and the positioning plate 5 .

[0035] Working principle: When in use, the clamping plate 10 can contact the circuit board when the telescopic rod 7 has not reached the maximum extension distance. As the telescopic rod 7 continues to extend, on the one hand, the clamping plate 10 applies pressure to the circuit board, so that the conveyor belt 4 cannot drive the circuit board to continue to move. On the other hand, the movable block 9 at one end of the clamping plate 10 extends toward the inside of the fixed block 8, and at the same time the support spring 13 reacts to the movable block 9, so that the positioning plate 5 and the clamping plate 10 fix the circuit board, forming the firmness of the circuit board at this position, so as to cooperate with the processing equipment. After processing, as the turntable 11 continues to rotate, the telescopic rod 7 gradually shrinks and loses its clamping of the circuit board, and cooperates with the conveyor belt 4 to move it out of the fixed position to facilitate the entry of the next circuit board to be processed.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A fixing fixture for printed circuit board processing, comprising a driving seat (1), a servo motor (6) is installed above the driving seat (1), and a conveying frame (2) is arranged on one side of the driving seat (1); Features: Also includes: A telescopic rod (7) is arranged at one side of the interior of the driving seat (1), and the telescopic rod (7) and the driving seat (1) are slidably limited, a fixed block (8) is installed at one end of the telescopic rod (7), and the fixed block (8) is clamped with the telescopic rod (7), a movable block (9) is arranged at one side of the fixed block (8), a clamping plate (10) is installed at one side of the movable block (9), and the clamping plate (10) and the movable block (9) are fixed by bolts, and a positioning plate (5) is fixedly installed above the outer side of the conveying frame (2), and the positions of the positioning plate (5) and the clamping plate (10) correspond to each other; A turntable (11) is arranged on the other side of the driving seat (1), and the output shaft of the servo motor (6) is fixed to the shaft at the upper end of the turntable (11) through a coupling. A connecting arm (12) is installed between one side of the upper end surface of the turntable (11) and the other end of the telescopic rod (7), and the two ends of the connecting arm (12) are respectively connected to the telescopic rod (7) and the turntable (11) through a rotating shaft.

2. A fixing fixture for printed circuit board processing according to claim 1, characterized in that: One end of the movable block (9) extends into the interior of the fixed block (8), and the movable block (9) and the fixed block (8) are slidably limited, and support springs (13) are fixedly installed on both sides between the movable block (9) and the fixed block (8).

3. A fixing fixture for printed circuit board processing according to claim 1, characterized in that: Transmission rollers (3) are arranged at the front and rear of the conveying frame (2), and the transmission rollers (3) are rotatably connected to the conveying frame (2), and a conveyor belt (4) is installed between the two transmission rollers (3).

4. A fixing fixture for printed circuit board processing according to claim 3, characterized in that: A first pulley (14) is fixedly mounted on the shaft at the lower end of the rotating disk (11), a second pulley (15) is mounted on the front end of the other side of the driving seat (1), the shaft at the lower end of the second pulley (15) is rotatably connected to the driving seat (1), and the second pulley (15) is connected to the first pulley (14) via a belt (18).

5. A fixing fixture for printed circuit board processing according to claim 4, characterized in that: A driving bevel gear (16) is fixedly mounted on the shaft at the upper end of the second pulley (15); a transmission shaft (19) is fixedly mounted on one end of the front transmission roller (3), and the transmission shaft (19) extends into the interior of the drive seat (1); a driven bevel gear (17) is fixedly mounted on one end of the transmission shaft (19) located inside the drive seat (1), and the driven bevel gear (17) is meshedly connected with the driving bevel gear (16).

6. A fixing fixture for printed circuit board processing according to claim 3, characterized in that: The upper end surface of the conveyor belt (4) is located at a height higher than the conveyor frame (2).

7. A fixing fixture for printed circuit board processing according to claim 1, characterized in that: Rubber pads are bonded and fixed to the inner sides of the clamping plate (10) and the positioning plate (5).

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