A fixing clamp for PCB testing

Abstract

The utility model provides a kind of fixed clamp for PCB testing belongs to fixed clamp technical field;Including: base, the outer wall of the base is fixedly equipped with first motor, the output shaft of the first motor is fixedly equipped with screw rod.The utility model is equipped with base, first motor, second motor, first gear, second gear, carousel, adjusting screw rod, clamping plate structure, so that the fixture in the use process, user can be through the operation of first motor to let the spacing between first fixed plate and second fixed plate be adjusted, then the spacing between two clamping plates is adjusted by the mode of rotating adjusting screw rod, to realize the effect of clamping circuit board of different size and specification, when detecting double-sided circuit board, directly through the operation of second motor to let first gear and second gear engage, to realize the effect of automatic overturning circuit board, to improve the automation of the fixture and the detection efficiency of circuit board of user.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, and in particular to a fixture for PCB board testing. Background Technology

[0002] In the PCB manufacturing process, after the surface mount technology (SMT) is completed, functional testing is usually required before the PCB can enter the normal assembly and shipping process, such as circuit power-on testing. During the testing process, a PCB testing fixture is required.

[0003] While existing fixtures can effectively hold circuit boards during use, they lack mechanisms for users to adjust the position of the clamping plates. Therefore, they cannot handle circuit boards of different sizes. Furthermore, when testing double-sided circuit boards, users must frequently disassemble and reassemble the boards, increasing the risk of scratches or damage and reducing testing efficiency. Therefore, this application provides a PCB board testing fixture to meet these requirements. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a PCB board testing fixture to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A PCB board testing fixture includes: a base, a first motor fixedly mounted on the outer wall of the base, a lead screw fixedly mounted on the output shaft of the first motor, a slide connected to the outer wall of the lead screw, a first fixing plate fixedly mounted on the top of the slide, a second fixing plate fixedly mounted on the end of the base away from the first motor, a mounting bracket fixedly mounted on the outer wall of both the first and second fixing plates, a second motor fixedly mounted on the outer wall of the mounting bracket, a first gear on the output shaft of the second motor, a second gear meshing with the outer wall of the first gear, a first positioning plate and a second positioning plate fixedly mounted on the outer walls of both the first and second fixing plates, a tension spring on the outer wall of the first positioning plate, the end of the tension spring abutting against a rotating plate, an electromagnet on the outer walls of both the second positioning plate and the clamping plate, a turntable fixedly mounted on the outer wall of the second gear, a connecting shell fixedly mounted on the outer wall of the turntable, an adjusting screw on the outer wall of the connecting shell, a clamping plate rotatably connected to the bottom end of the adjusting screw, a body tightly fitted on the outer wall of the clamping plate, a sliding groove on the outer wall of the base, and a movable groove on the top of the inner wall of the sliding groove.

[0007] A round rod is fixedly mounted on the top of the clamping plate, and a limiting hole is opened on the outer wall of the connecting shell, and the inner wall of the limiting hole is slidably connected to the outer wall of the round rod.

[0008] The main body is fixedly connected to the connecting shell by a clamp plate. The outer walls of the first fixing plate and the second fixing plate are both provided with rotating grooves, and the inner wall of the rotating groove is rotatably connected to the outer wall of the turntable.

[0009] The outer wall of the slide block is slidably connected to the inner wall of the slide groove, and the outer wall of the first fixed plate is slidably connected to the inner wall of the movable groove.

[0010] When the electromagnet is energized, the rotating plate is fixedly connected to the second positioning plate through the electromagnet, and the second gear is fixedly connected to the second fixed plate through the rotating plate.

[0011] A positioning rod is fixedly mounted on the outer wall of the first fixed plate, and a through hole is opened on the outer wall of the rotating plate, and the inner wall of the through hole is rotatably connected to the outer wall of the positioning rod.

[0012] Compared with the prior art, this utility model has at least the following beneficial effects:

[0013] 1. In the above solution, the base, first motor, second motor, first gear, second gear, turntable, adjusting screw, and clamping plate structure enable the user to adjust the distance between the first and second fixed plates by operating the first motor, and then adjust the distance between the two clamping plates by rotating the adjusting screw, thereby achieving the effect of clamping circuit boards of different sizes and specifications. When inspecting double-sided circuit boards, the second motor directly engages the first and second gears to automatically flip the circuit board, thus improving the automation of the fixture and the user's efficiency in inspecting circuit boards.

[0014] 2. In the above scheme, by setting up a rotating plate, electromagnet, first positioning plate, second positioning plate, and first gear structure, the fixture uses the electromagnet to make the rotating plate close to the tension spring end be attracted by the electromagnet during use, so that the other end of the rotating plate is attached to the first gear, thereby achieving the effect of locking the first gear, thus ensuring that the circuit board cannot be displaced during the testing process, and improving the stability of the circuit board. Attached Figure Description

[0015] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.

[0016] Figure 1A schematic diagram of the three-dimensional structure of a PCB board testing fixture.

[0017] Figure 2 This is a side view of the fixture used for PCB board testing.

[0018] Figure 3 A side sectional view of the fixture used for PCB board testing;

[0019] Figure 4 This is a schematic diagram of the movable slot structure of the fixing fixture used for PCB board testing.

[0020] [Figure Labels]

[0021] 1. Base; 2. First motor; 3. Lead screw; 4. Slide; 5. First fixing plate; 6. Second fixing plate; 7. Mounting bracket; 8. Second motor; 9. First gear; 10. Second gear; 11. Turntable; 12. Connecting shell; 13. Adjusting screw; 14. First positioning plate; 15. Tension spring; 16. Second positioning plate; 17. Electromagnet; 18. Clamping plate; 19. Body; 20. Rotating plate; 21. Slide groove; 22. Movable groove.

[0022] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0023] The following is a detailed description of a PCB board testing fixture provided by this utility model, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are listed as best and preferred embodiments; other alternative methods may be used by those skilled in the art. Furthermore, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0024] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0025] like Figure 1 and Figure 2 As shown, an embodiment of this utility model provides a PCB board testing fixture, including: a base 1, a first motor 2 fixedly mounted on the outer wall of the base 1, a lead screw 3 fixedly mounted on the output shaft of the first motor 2, a slide 4 threadedly connected to the outer wall of the lead screw 3, a first fixing plate 5 fixedly mounted on the top of the slide 4, a second fixing plate 6 fixedly mounted on the end of the base 1 away from the first motor 2, a mounting bracket 7 fixedly mounted on the outer wall of both the first fixing plate 5 and the second fixing plate 6, a second motor 8 fixedly mounted on the outer wall of the mounting bracket 7, a first gear 9 provided on the output shaft of the second motor 8, a second gear 10 meshing on the outer wall of the first gear 9, a first positioning plate 14 and a second positioning plate 16 fixedly mounted on the outer walls of the first fixing plate 5 and the second fixing plate 6 respectively, a tension spring 15 provided on the outer wall of the first positioning plate 14, the end of the tension spring 15 abutting against a rotating plate 20, and the outer walls of the second positioning plate 16 and the clamping plate 18 both provided with... The fixture includes an electromagnet 17, a turntable 11 fixedly mounted on the outer wall of the second gear 10, a connecting shell 12 fixedly mounted on the outer wall of the turntable 11, an adjusting screw 13 on the outer wall of the connecting shell 12, a clamping plate 18 rotatably connected to the bottom end of the adjusting screw 13, a body 19 tightly fitted to the outer wall of the clamping plate 18, a sliding groove 21 on the outer wall of the base 1, and a movable groove 22 on the top of the inner wall of the sliding groove 21. Through the structure of the base 1, the first motor 2, the lead screw 3, the slide 4, the first fixed plate 5, the second fixed plate 6, the mounting bracket 7, the second motor 8, and the first gear 9, the user can adjust the distance between the first fixed plate 5 and the second fixed plate 6 by moving the first fixed plate 5 during use. The user can also manually rotate the adjusting screw 13 to adjust the distance between the two clamping plates 18, thereby achieving the effect of clamping the body 19 of different specifications and sizes, thus improving the application range of the fixture.

[0026] like Figure 3 and Figure 4 As shown, a round rod is also fixedly mounted on the top of the clamping plate 18. A limiting hole is opened on the outer wall of the connecting shell 12, and the inner wall of the limiting hole is slidably connected to the outer wall of the round rod. Through the structure of the round rod and the limiting hole, the user can use the round rod to limit the clamping plate 18 when rotating the adjusting screw 13, so that the clamping plate 18 cannot rotate with the adjusting screw 13 but can only move vertically up and down. This ensures that the clamping plate 18 can accurately fit the surface of the body 19 for clamping operations, thereby improving the stability of the clamping plate 18 and the clamping effect on the body 19.

[0027] like Figure 2 and Figure 3As shown, the main body 19 is fixedly connected to the connecting shell 12 via the clamping plate 18. The outer walls of the first fixing plate 5 and the second fixing plate 6 are both provided with rotating grooves, and the inner wall of the rotating grooves is rotatably connected to the outer wall of the turntable 11. Through the structure of the rotating grooves and the second fixing plate 6, the second motor 8 can continuously drive the turntable 11 to rotate during operation. This makes it convenient for users to test double-sided PCB circuit boards without frequently disassembling and assembling the circuit boards. The circuit boards can be automatically flipped by the rotation of the turntable 11, thereby reducing the user's workload and avoiding scratches on the circuit boards, thus improving the practicality and automation of the fixture.

[0028] like Figure 3 and Figure 4 As shown, the outer wall of the slide block 4 is slidably connected to the inner wall of the slide groove 21, and the outer wall of the first fixed plate 5 is slidably connected to the inner wall of the movable groove 22. Through the structure of the movable groove 22, the first motor 2 uses the rotation of the lead screw 3 to make the slide block 4 drive the first fixed plate 5 to slide along the inner wall of the movable groove 22 during operation, thereby achieving the effect of adjusting the distance between the first fixed plate 5 and the second fixed plate 6, thus ensuring the normal operation of the fixture, and also preventing the first fixed plate 5 from tilting or even shifting its position, thus improving the stability of the first fixed plate 5 during movement.

[0029] like Figure 2 and Figure 4 As shown, after the electromagnet 17 is energized, the rotating plate 20 is fixedly connected to the second positioning plate 16 through the electromagnet 17, and the second gear 10 is fixedly connected to the second fixed plate 6 through the rotating plate 20. Through the structure of the electromagnet 17, after the clamp performs the clamping operation on the body 19, the energization of the electromagnet 17 causes the rotating plate 20 to fit against the first gear 9, thereby locking the first gear 9 and preventing it from shaking. This avoids the circuit board from shifting position during the user's test of the circuit board circuit with a test pen, thereby improving the stability of the body 19 during the test process.

[0030] like Figure 1 and Figure 3 As shown, a positioning rod is fixedly mounted on the outer wall of the first fixed plate 5, and a through hole is opened on the outer wall of the rotating plate 20. The inner wall of the through hole is rotatably connected to the outer wall of the positioning rod. Through the positioning rod and through hole structure, the positioning rod is used to limit the rotating plate 20, so that the rotating plate 20 rotates around the positioning rod as the axis after the electromagnet 17 is energized. This achieves the effect of adjusting the position of both ends of the rotating plate 20, thereby achieving the effect of automatically locking the first gear 9. It also makes it easy for the user to release the first gear 9 so that the turntable 11 can rotate automatically, making it easy for the user to flip the body 19, thus improving the automation and practicality of the fixture.

[0031] The technical solution provided by this utility model allows for the adjustment of the distance between the first fixed plate 5 and the second fixed plate 6 by the operation of the first motor 2. Then, the adjustment screw 13 is rotated to adjust the distance between the two clamping plates 18, thereby achieving the effect of clamping the body 19 of different specifications and sizes, thus improving the application range of the fixture. After clamping the body 19, the user can use an electric pen to perform circuit testing on the body 19. If it is necessary to test the circuit on the other side of the body 19 after the test is completed, the electromagnet 17 is de-energized to disengage the rotating plate 20 from the first gear 9. Then, the operation of the second motor 8 causes the first gear 9 to mesh with the second gear 10, thereby causing the second gear 10 to drive the turntable 11 to rotate and automatically flip the body 19 to the other side. This facilitates the user to test the circuit on the other side of the body 19 without the need for the user to frequently disassemble and assemble the body 19 to complete the double-sided testing, thus improving the automation and practicality of the fixture. The electromagnet 17 is also energized to prevent the flipped body 19 from becoming loose or shifting position, improving the stability of the body 19 during the testing process.

[0032] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details have been described in detail in the above preferred embodiments; however, those skilled in the art can fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0033] Those skilled in the art will understand that all or part of the steps in the methods of the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc.

[0034] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A PCB board testing fixture, characterized in that, include: A base (1) is provided, and a first motor (2) is fixedly mounted on the outer wall of the base (1). A lead screw (3) is fixedly mounted on the output shaft of the first motor (2). A slide (4) is threadedly connected to the outer wall of the lead screw (3). A first fixing plate (5) is fixedly mounted on the top of the slide (4). A second fixing plate (6) is fixedly mounted on the end of the base (1) away from the first motor (2). A mounting bracket (7) is fixedly mounted on the outer wall of both the first fixing plate (5) and the second fixing plate (6). A second motor (8) is fixedly mounted on the outer wall of the mounting bracket (7). A first gear (9) is provided on the output shaft of the second motor (8). A second gear (10) meshes with the outer wall of the first gear (9). The outer walls of the first fixing plate (5) and the second fixing plate (6) are also respectively fixedly mounted with... Equipped with a first positioning plate (14) and a second positioning plate (16), the outer wall of the first positioning plate (14) is provided with a tension spring (15), the end of the tension spring (15) abuts against a rotating plate (20), the outer walls of the second positioning plate (16) and the clamping plate (18) are both provided with electromagnets (17), the outer wall of the second gear (10) is fixedly fitted with a turntable (11), the outer wall of the turntable (11) is fixedly fitted with a connecting shell (12), the outer wall of the connecting shell (12) is provided with an adjusting screw (13), the bottom end of the adjusting screw (13) is rotatably connected to the clamping plate (18), the outer wall of the clamping plate (18) is tightly fitted with the body (19), the outer wall of the base (1) is provided with a sliding groove (21), and the top of the inner wall of the sliding groove (21) is provided with a movable groove (22).

2. The PCB board testing fixture according to claim 1, characterized in that: The top of the clamping plate (18) is also fixedly fitted with a round rod, and the outer wall of the connecting shell (12) is provided with a limiting hole, and the inner wall of the limiting hole is slidably connected to the outer wall of the round rod.

3. The PCB board testing fixture according to claim 1, characterized in that: The main body (19) is fixedly connected to the connecting shell (12) by a clamp (18). The outer walls of the first fixing plate (5) and the second fixing plate (6) are both provided with rotating grooves, and the inner wall of the rotating groove is rotatably connected to the outer wall of the turntable (11).

4. A PCB board testing fixture according to claim 1, characterized in that: The outer wall of the slide block (4) is slidably connected to the inner wall of the slide groove (21), and the outer wall of the first fixed plate (5) is slidably connected to the inner wall of the movable groove (22).

5. A PCB board testing fixture according to claim 1, characterized in that: After the electromagnet (17) is energized, the rotating plate (20) is fixedly connected to the second positioning plate (16) through the electromagnet (17), and the second gear (10) is fixedly connected to the second fixed plate (6) through the rotating plate (20).

6. A PCB board testing fixture according to claim 1, characterized in that: The outer wall of the first fixed plate (5) is fixedly fitted with a positioning rod, and the outer wall of the rotating plate (20) is provided with a through hole, and the inner wall of the through hole is rotatably connected to the outer wall of the positioning rod.

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