Circuit board distortion test fixture

Abstract

The utility model discloses a circuit board distortion test tool comprising a machine body, the upper end of the machine body is fixedly connected with an adjusting block and a support plate, the upper end of the adjusting block is provided with a mounting seat, the upper end of the mounting seat is provided with a first fixing mechanism, and the middle part of one end of the support plate far away from the first fixing mechanism is fixedly connected with a reduction gearbox. The end, away from the supporting plate, of the reduction gearbox is fixedly connected with a servo motor, the end, away from the reduction gearbox, of the supporting plate is provided with an angle rotating mechanism, an angle sensor and a torque sensor are arranged in the angle rotating mechanism, and a rotating shaft of the angle rotating mechanism is fixedly connected with a second fixing mechanism. A driving and control integrated touch screen is arranged in the middle of the front end of the machine body. The two ends of the circuit board are fixed through the device, the circuit board is twisted through the servo motor, and the force borne by the circuit board when the circuit board is twisted to a certain angle is detected in cooperation with the angle rotating mechanism.

Description

Technical Field

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

[0002] Circuit boards make circuits miniaturized and intuitive, and play an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. After the production of circuit boards, the degree of torsion resistance of the circuit boards needs to be tested to test whether the produced circuit boards are qualified. When testing workpieces, the existing torsion testers mostly obtain the parameters of the circuit boards by applying a certain torsion force to the circuit boards and then detecting the torsion angle of the circuit boards. The torsion angle of the circuit boards cannot be freely adjusted, and the flexibility of adjusting the torsion angle of the circuit boards is poor. Utility Model Content

[0003] The utility model aims to provide a circuit board distortion test fixture, which can freely adjust the angle of distortion of the circuit board when performing a distortion test on the circuit board, and detect the force applied to the circuit board after the circuit board is twisted to the set angle, so as to measure the experimental parameters of the circuit board.

[0004] To achieve the above-mentioned purpose, a circuit board distortion test fixture is provided, comprising a body, an adjustment block and a support plate are fixedly connected to the upper end of the body, and the adjustment block is located in the middle of one end of the body, a mounting seat is installed at the upper end of the adjustment block, a second limiting groove is provided in the middle of the lower end of the adjustment block, and the mounting seat is located in the second limiting groove, a first fixing mechanism is installed at the upper end of the mounting seat, a reduction box is fixedly connected to the middle of one end of the support plate away from the first fixing mechanism, and the rotating shaft of the reduction box passes through the support plate, a servo motor is fixedly connected to one end of the reduction box away from the support plate, and the output end of the servo motor is connected to the reduction box, an angle rotation mechanism is provided at one end of the support plate away from the reduction box, and the rotating shaft of the reduction box is fixedly connected to the middle of the angle rotation mechanism, an angle sensor and a torque sensor are provided in the angle rotation mechanism, a second fixing mechanism is fixedly connected to the rotating shaft of the angle rotation mechanism, and the second fixing mechanism is away from the support plate, a circuit board to be tested is provided between the first fixing mechanism and the second fixing mechanism, and the circuit board to be tested extends to the first fixing mechanism and the second fixing mechanism respectively, and a drive and control integrated touch screen is provided in the middle of the front end of the body. When conducting a twisting test on a circuit board, the angle at which the circuit board needs to be twisted can be freely adjusted, and the force applied to the circuit board after being twisted to the set angle can be detected, thereby measuring the experimental parameters of the circuit board.

[0005] According to the circuit board distortion test fixture, the first fixing mechanism is composed of a first clamping block, a first base, a first screw, a first handle and a first guide rod, the first base is an L-shaped structure and is installed on the upper end of the mounting seat, the first guide rod and the first screw are symmetrically arranged on the upper end of the first base, and the lower end of the first screw is rotatably connected to the upper end of the first base, the first clamping block is arranged directly above the first base, the first guide rod passes through the first clamping block and is slidably connected to the first clamping block, the first screw passes through the first clamping block and is threadedly connected to the first clamping block, the first handle is fixedly connected to the upper end of the first screw, and one end of the circuit board under test is located between the first clamping block and the first base. It is used to fix one end of the circuit board.

[0006] According to the circuit board distortion test fixture, the upper end of the mounting seat is provided with a plurality of mounting holes at equal intervals, the lower end of the first base is provided with a through hole matched with the mounting hole, the through hole is provided with a bolt, and the bolt is threadedly connected with the mounting hole, so as to move the mounting seat and test circuit boards of different lengths.

[0007] According to the circuit board twist test fixture, a first limiting groove is provided in the middle of the lower end of the first base, and the upper end of the mounting seat extends into the first limiting groove, so as to engage the first base with the mounting seat and support the first base when twisting the circuit board.

[0008] According to the circuit board distortion test fixture, the second fixing mechanism is composed of a second guide rod, a second clamping block, a second base, a second screw and a second handle, the second base is fixedly connected to the rotating shaft of the angle rotation mechanism, the second guide rod and the second screw are symmetrically arranged at the upper end of the second base, and the lower end of the second screw is rotatably connected to the upper end of the second base, the second clamping block is arranged directly above the second base, the second guide rod passes through the second clamping block and is slidably connected to the second clamping block, the second screw passes through the second clamping block and is threadedly connected to the second clamping block, the second handle is fixedly connected to the upper end of the second screw, and the end of the circuit board to be tested away from the first fixing mechanism extends between the second clamping block and the second base. It is used to fix the end of the circuit board away from the first fixing mechanism, so as to distort the circuit board.

[0009] According to the circuit board distortion test fixture, a gasket is provided in the middle of the lower end of the second clamping block, and the gasket contacts the upper end of the tested circuit board, so as to further clamp the circuit board and improve the clamping effect of the circuit board.

[0010] According to the circuit board distortion test fixture, the lower end of the body is fixedly connected with a ground foot, and the ground foot is respectively located at the four corners of the body to support the device.

[0011] According to the circuit board distortion test fixture, the side end of the support plate is engraved with an angle scale, and the angle scale and the angle rotation mechanism are on the same side end, the angle rotation mechanism is located in the middle of the angle scale, and the outer end of the angle rotation mechanism is fixedly connected with a pointer. This facilitates manual detection of the circuit board distortion angle from the outside and facilitates calibration of the device.

[0012] Compared with the prior art, the beneficial effects of the utility model are: fixing the two ends of the circuit board through the device, and twisting the circuit board with a servo motor, and cooperating with the angle rotation mechanism to detect the force applied to the circuit board when it is twisted to a set angle, thereby improving the flexibility of the device.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 This is a three-dimensional diagram of a circuit board distortion test fixture of the utility model;

[0016] Figure 2 It is a three-dimensional diagram of a first fixing mechanism of a circuit board distortion test fixture of the utility model;

[0017] Figure 3 It is a three-dimensional diagram of a mounting base of a circuit board distortion test fixture of the utility model;

[0018] Figure 4 It is a three-dimensional diagram of a second fixing mechanism of a circuit board distortion testing fixture of the utility model.

[0019] In the figure: 1. first fixing mechanism; 2. mounting base; 3. adjusting block; 4. machine body; 5. foot; 6. integrated touch screen for drive and control; 7. supporting plate; 8. angle rotating mechanism; 9. reduction gearbox; 10. servo motor; 11. angle scale; 12. pointer; 13. second fixing mechanism; 14. tested circuit board; 15. first clamping block; 16. first base; 17. first limiting groove; 18. first screw; 19. first handle; 20. first guide rod; 21. second limiting groove; 22. mounting hole; 23. second guide rod; 24. second clamping block; 25. second base; 26. second screw; 27. second handle. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4The utility model provides a technical solution: a circuit board distortion test fixture, a machine body 4, a ground foot 5 is fixedly connected to the lower end of the machine body 4, and the ground foot 5 is respectively located at the four corners of the machine body 4, and is used to support the device. The upper end of the machine body 4 is fixedly connected to an adjustment block 3 and a support plate 7, and the adjustment block 3 is located in the middle of one end of the machine body 4, and the side end of the support plate 7 is engraved with an angle scale 11, and the angle scale 11 and the angle rotation mechanism 8 are on the same side end, and the angle rotation mechanism 8 is located in the middle of the angle scale 11, and the outer end of the angle rotation mechanism 8 is fixedly connected with a pointer 12, which is convenient for manual detection of the angle of distortion of the circuit board from the outside, and convenient for calibration of the device. The upper end of the adjustment block 3 is provided with a mounting seat 2, the middle part of the lower end of the adjustment block 3 is provided with a second limiting groove 21, and the mounting seat 2 is located in the second limiting groove 21, the upper end of the mounting seat 2 is provided with a first fixing mechanism 1, the first fixing mechanism 1 is composed of a first clamping block 15, a first base 16, a first screw 18, a first handle 19 and a first guide rod 20, the upper end of the mounting seat 2 is provided with a plurality of mounting holes 22 at equal intervals, the lower end of the first base 16 is provided with a through hole matching the mounting hole 22, a bolt is provided in the through hole, and the bolt is threadedly connected with the mounting hole 22, which is used to move the mounting seat 2, so as to test circuit boards of different lengths. The first base 16 is an L-shaped structure and is installed on the upper end of the mounting seat 2, the middle part of the lower end of the first base 16 is provided with a first limiting groove 17, and the upper end of the mounting seat 2 extends into the first limiting groove 17. It is used to make the first base 16 engage with the mounting base 2, and support the first base 16 when the circuit board is twisted. The first guide rod 20 and the first screw 18 are symmetrically arranged at the upper end of the first base 16, and the lower end of the first screw 18 is rotatably connected to the upper end of the first base 16. The first clamping block 15 is arranged directly above the first base 16. The first guide rod 20 passes through the first clamping block 15 and is slidably connected to the first clamping block 15. The first screw 18 passes through the first clamping block 15 and is threadedly connected to the first clamping block 15. The first handle 19 is fixedly connected to the upper end of the first screw 18. One end of the tested circuit board 14 is located between the first clamping block 15 and the first base 16, and is used to fix one end of the circuit board.A reduction gearbox 9 is fixedly connected to the middle of one end of the support plate 7 away from the first fixing mechanism 1, and the rotating shaft of the reduction gearbox 9 passes through the support plate 7. A servo motor 10 is fixedly connected to one end of the reduction gearbox 9 away from the support plate 7, and the output end of the servo motor 10 is connected to the reduction gearbox 9. An angle rotation mechanism 8 is provided at one end of the support plate 7 away from the reduction gearbox 9, and the rotating shaft of the reduction gearbox 9 is fixedly connected to the middle of the angle rotation mechanism 8. An angle sensor and a torque sensor are provided in the angle rotation mechanism 8. The rotating shaft of the angle rotation mechanism 8 is fixedly connected to a second fixing mechanism 13, and the second fixing mechanism 13 is away from the support plate 7. The second fixing mechanism 13 is composed of a second guide rod 23, a second clamping block 24, a second base 25, a second screw 26 and a second handle 27. The second base 25 is fixedly connected to the rotating shaft of the angle rotating mechanism 8. The second guide rod 23 and the second screw 26 are symmetrically arranged at the upper end of the second base 25, and the lower end of the second screw 26 is rotatably connected to the upper end of the second base 25. The second clamping block 24 is arranged directly above the second base 25. A gasket is arranged in the middle of the lower end of the second clamping block 24, and the gasket contacts the upper end of the tested circuit board 14, which is used to further clamp the circuit board and improve the clamping effect of the circuit board. The second guide rod 23 passes through the second clamping block 24 and is slidably connected to the second clamping block 24. The second screw 26 passes through the second clamping block 24 and is threadedly connected to the second clamping block 24. The second handle 27 is fixedly connected to the upper end of the second screw 26. The end of the tested circuit board 14 away from the first fixing mechanism 1 extends between the second clamping block 24 and the second base 25, which is used to fix the end of the circuit board away from the first fixing mechanism 1, thereby twisting the circuit board. A circuit board 14 to be tested is disposed between the first fixing mechanism 1 and the second fixing mechanism 13 , and the circuit board 14 to be tested extends into the first fixing mechanism 1 and the second fixing mechanism 13 respectively. A driving and controlling integrated touch screen 6 is disposed in the middle of the front end of the body 4 .

[0022] Working principle: When in use, the first handle 19 and the second handle 27 are used to rotate the first screw rod and the second screw rod respectively, so that the first clamp block 15 and the second clamp block 24 move upward, and then the two ends of the tested circuit board 14 are respectively placed in the upper ends of the first base 16 and the second base 25, and then the first screw rod and the second screw rod are rotated in the opposite direction by the first handle 19 and the second handle 27 respectively, so that the first clamp block 15 and the second clamp block 24 respectively cooperate with the first base 16 and the second base 25 to clamp the circuit board, and the angle that the tested circuit board 14 needs to be twisted is input through the integrated drive and control touch screen 6, and the angle rotation mechanism 8 drives the second fixing mechanism 13 to rotate through the transmission of the servo motor 10 and the reduction box 9, so that one end of the tested circuit board 14 rotates to twist the tested circuit board 14, and at the same time, the angle sensor in the angle rotation mechanism 8 is used to detect the angle of the tested circuit board 14, and after the twisting angle of the tested circuit board 14 reaches the set value, the torque sensor in the angle rotation mechanism 8 detects the force on the tested circuit board 14, and the measured parameters are displayed through the integrated drive and control touch screen 6.

[0023] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A circuit board distortion test fixture, comprising a body (4), characterized in that: The upper end of the machine body (4) is fixedly connected with an adjustment block (3) and a support plate (7), and the adjustment block (3) is located in the middle of one end of the machine body (4); the upper end of the adjustment block (3) is installed with a mounting seat (2); the middle of the lower end of the adjustment block (3) is provided with a second limiting groove (21), and the mounting seat (2) is located in the second limiting groove (21); the upper end of the mounting seat (2) is installed with a first fixing mechanism (1); the middle of one end of the support plate (7) away from the first fixing mechanism (1) is fixedly connected with a reduction box (9), and the rotating shaft of the reduction box (9) passes through the support plate (7); the end of the reduction box (9) away from the support plate (7) is fixedly connected with a servo motor (10), and the output end of the servo motor (10) is connected to the output end of the servo motor (10) and the output end of the servo motor (10) is connected to the output end of the servo motor (10). The support plate (7) is connected to a reduction box (9), an angle rotation mechanism (8) is provided at one end of the support plate (7) away from the reduction box (9), and the rotating shaft of the reduction box (9) is fixedly connected to the middle part of the angle rotation mechanism (8), an angle sensor and a torque sensor are provided in the angle rotation mechanism (8), the rotating shaft of the angle rotation mechanism (8) is fixedly connected to a second fixing mechanism (13), and the second fixing mechanism (13) is away from the support plate (7), a circuit board (14) to be tested is provided between the first fixing mechanism (1) and the second fixing mechanism (13), and the circuit board (14) to be tested extends into the first fixing mechanism (1) and the second fixing mechanism (13) respectively, and a drive and control integrated touch screen (6) is provided in the middle part of the front end of the body (4).

2. A circuit board distortion test fixture as claimed in claim 1, characterized in that: The first fixing mechanism (1) is composed of a first clamping block (15), a first base (16), a first screw rod (18), a first handle (19) and a first guide rod (20); the first base (16) is an L-shaped structure and is mounted on the upper end of the mounting seat (2); the first guide rod (20) and the first screw rod (18) are symmetrically arranged on the upper end of the first base (16); the lower end of the first screw rod (18) is rotatably connected to the upper end of the first base (16); the first clamping block (15) is arranged directly above the first base (16); the first guide rod (20) passes through the first clamping block (15) and is slidably connected to the first clamping block (15); the first screw rod (18) passes through the first clamping block (15) and is threadedly connected to the first clamping block (15); the first handle (19) is fixedly connected to the upper end of the first screw rod (18); and one end of the tested circuit board (14) is located between the first clamping block (15) and the first base (16).

3. A circuit board distortion test fixture as claimed in claim 2, characterized in that: The upper end of the mounting seat (2) is provided with a plurality of mounting holes (22) at equal intervals, and the lower end of the first base (16) is provided with a through hole matching the mounting hole (22), a bolt is provided in the through hole, and the bolt is threadedly connected to the mounting hole (22).

4. A circuit board distortion test fixture as claimed in claim 2, characterized in that: A first limiting groove (17) is provided in the middle of the lower end of the first base (16), and the upper end of the mounting seat (2) extends into the first limiting groove (17).

5. A circuit board distortion test fixture as claimed in claim 1, characterized in that: The second fixing mechanism (13) is composed of a second guide rod (23), a second clamping block (24), a second base (25), a second screw rod (26) and a second handle (27); the second base (25) is fixedly connected to the rotating shaft of the angle rotating mechanism (8); the second guide rod (23) and the second screw rod (26) are symmetrically arranged on the upper end of the second base (25); the lower end of the second screw rod (26) is rotatably connected to the upper end of the second base (25); the second clamping block (24) is arranged directly above the second base (25); the second guide rod (23) passes through the second clamping block (24) and is slidably connected to the second clamping block (24); the second screw rod (26) passes through the second clamping block (24) and is threadedly connected to the second clamping block (24); the second handle (27) is fixedly connected to the upper end of the second screw rod (26); and the end of the tested circuit board (14) away from the first fixing mechanism (1) extends to between the second clamping block (24) and the second base (25).

6. A circuit board distortion test fixture as claimed in claim 5, characterized in that: A gasket is provided in the middle of the lower end of the second clamping block (24), and the gasket is in contact with the upper end of the tested circuit board (14).

7. A circuit board distortion test fixture as claimed in claim 1, characterized in that: The lower end of the machine body (4) is fixedly connected with a foot (5), and the foot (5) is respectively located at the four corners of the machine body (4).

8. A circuit board distortion test fixture as claimed in claim 1, characterized in that: An angle scale (11) is engraved on the side end of the support plate (7), and the angle scale (11) and the angle rotation mechanism (8) are on the same side end. The angle rotation mechanism (8) is located in the middle of the angle scale (11), and a pointer (12) is fixedly connected to the outer end of the angle rotation mechanism (8).

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