A keyboard circuit board production and testing fixture

Abstract

This utility model discloses a keyboard circuit board production and testing fixture, specifically relating to the field of computer keyboard manufacturing technology. It includes a testing base frame, a placement component on top of the base frame, a testing platform on one side of the placement component, a clamping component on top of the testing platform, and support frames on both sides of the clamping component. The support frames are slidably connected to the testing base frame. A first stepper motor is fixedly mounted on the front side of one of the support frames, and a first reducer is mounted on the rear side of the first stepper motor. This utility model, by incorporating the placement component, provides a more stable and safer function for handling and placing keyboard circuit boards during testing. This solves the problem that in large-scale production testing of keyboard circuit boards, manual handling of the boards is often required, which can easily cause damage to the surface and affect subsequent testing.

Description

Technical Field

[0001] This utility model relates to the field of computer keyboard manufacturing technology, and more specifically, to a keyboard circuit board manufacturing and testing fixture. Background Technology

[0002] The keyboard circuit board is one of the key components of a computer keyboard. The keyboard circuit board is usually composed of multiple layers of thin film circuits. The contacts on the top and bottom layers of thin film circuits work together to form each key. When the keyboard circuit board is assembled, each circuit and key needs to be tested. When placing the keyboard circuit board, the operator needs to put their hand between the upper and lower components, which can easily cause the hand to be pinched due to misoperation, making it inconvenient to use.

[0003] According to patent publication number CN215641646U, a flexible circuit board testing fixture is provided. The flexible circuit board testing fixture of this utility model includes a base, a mounting plate, a pressure plate and a telescopic driver that can be controlled by the testing equipment on the base. The mounting plate is slidably set on the top surface of the base. When using this structure, the flexible circuit board can be directly placed on the corresponding position of the mounting plate under visual observation, which is convenient for installation and improves the usability of the testing fixture.

[0004] However, in actual use, such as when conducting production testing on a large number of keyboard circuit boards, it is usually necessary to manually hold the keyboard circuit boards and pick them up and place them, which can easily cause bumps and damage to the surface of the keyboard circuit boards, thus affecting subsequent testing. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a keyboard circuit board production and testing fixture to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a keyboard circuit board production and testing fixture, including a testing base frame, a placement component on the top of the testing base frame, a testing platform on one side of the placement component, a clamping component on the top of the testing platform, and support frames on both sides of the clamping component. The support frames are slidably connected to the testing base frame. A first stepper motor is fixedly mounted on the front side of one of the support frames, and a first reducer is mounted on the rear side of the first stepper motor. The input end of the first reducer is fixedly connected to the output end of the first stepper motor, and the first reducer is fixedly connected to the support frame. An electrical performance tester is mounted on the front side of the first stepper motor, and the electrical performance tester is fixedly connected to the testing base frame.

[0007] As a further description of the above technical solution:

[0008] The placement assembly includes a placement frame set on the top of the detection base. Multiple air pipes are fixedly provided at the bottom of the placement frame. Suction cups are provided through the bottom of each of the multiple air pipes. An air pump is fixedly provided at the top of the placement frame. A main pipe is provided through the output end of the air pump. An air extraction pipe is provided through the outside of the main pipe. One end of the air extraction pipe is connected to the air pipe.

[0009] As a further description of the above technical solution:

[0010] The placement frame is equipped with multiple small electric cylinders on one side. The output ends of the multiple small electric cylinders are all hinged to the placement frame. A positioning frame is hinged to one end of each small electric cylinder. The positioning frame is fixedly connected to the detection base frame.

[0011] As a further description of the above technical solution:

[0012] The clamping assembly includes a first clamping head rotatably connected to the inner side of the support frame, the first clamping head being fixedly connected to the output end of the first reducer, a telescopic rod being fixedly provided on the rear side of the first clamping head, a second clamping head being provided at the bottom of the first clamping head, a pull ball being fixedly provided on the outer side of the first clamping head and the second clamping head, the second clamping head being rotatably connected to the support frame, and a rotating shaft being fixedly provided on the rear side of the second clamping head.

[0013] As a further description of the above technical solution:

[0014] A clamping rod is fixedly provided at the top of the rotating shaft, a soft rubber plate is fixedly provided at the bottom of the clamping rod, an L-shaped clamping plate is provided at the bottom of the soft rubber plate, the L-shaped clamping plate is rotatably connected to the second cutting head, the L-shaped clamping plate is slidably connected to the detection table, a rack is fixedly provided on the rear side of the L-shaped clamping plate, and a gear frame is slidably provided on the top of the rack.

[0015] As a further description of the above technical solution:

[0016] A gear meshes between the two racks, a rotating shaft is fixedly provided on the inner side of the gear, a fixed frame is rotatably connected to the outer side of the rotating shaft, the rack is fixedly connected to the fixed frame, the fixed frame is fixedly connected to the detection base, and a second stepper motor is fixedly provided on one side of the fixed frame.

[0017] As a further description of the above technical solution:

[0018] A second reducer is provided on one side of the second stepper motor. The second reducer is fixedly connected to the fixed frame. The input end of the second reducer is fixedly connected to the output end of the second stepper motor. The output end of the second reducer is fixedly connected to the rotating shaft.

[0019] The technical effects and advantages of this utility model are as follows:

[0020] 1. By setting up a placement component, compared with the existing technology, the combined action of a small electric cylinder and a vacuum pump enables the suction cup to pick up and place the keyboard circuit board to be tested, thereby better protecting the keyboard circuit board and preventing damage to the keyboard circuit board due to bumps during movement.

[0021] 2. By setting up a clamping assembly, compared with the existing technology, the L-shaped clamping plate and clamping rod can clamp the sides and top of the keyboard circuit board through the action of the first and second stepper motors. At the same time, it can adapt to keyboard circuit boards of different sizes and clamp them, improving the stability and adaptability of clamping. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the placement rack structure of this utility model.

[0024] Figure 3 This is a schematic diagram of the support frame structure of this utility model.

[0025] Figure 4 This is a schematic diagram of the first stepper motor structure of this utility model.

[0026] Figure 5 This is a schematic diagram of the clamping rod structure of this utility model.

[0027] Figure 6 This is a cross-sectional view of the fixing clip of this utility model.

[0028] The attached diagram is labeled as follows: 1. Testing base frame; 2. Testing table; 3. Support frame; 4. First stepper motor; 5. First reducer; 6. Electrical performance tester; 7. Placement rack; 8. Vent pipe; 9. Suction cup; 10. Air pump; 11. Main pipe; 12. Air extraction pipe; 13. Small electric cylinder; 14. Positioning frame; 15. First control head; 16. Telescopic rod; 17. Second control head; 18. Pull ball; 19. Rotating shaft; 20. Clamping rod; 21. Soft rubber plate; 22. L-shaped clamping plate; 23. Rack; 24. Gear; 25. Rotating shaft; 26. Fixing frame; 27. Gear frame; 28. Second stepper motor; 29. ​​Second reducer. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] As attached Figure 1-6 The illustrated keyboard circuit board production and testing fixture includes a testing base frame 1. A placement assembly is located on the top of the testing base frame 1, and a testing platform 2 is located on one side of the placement assembly. A clamping assembly is located on the top of the testing platform 2, and support frames 3 are located on both sides of the clamping assembly. The support frames 3 are slidably connected to the testing base frame 1. A first stepper motor 4 is fixedly mounted on the front side of one of the support frames 3, and a first reducer 5 is located on the rear side of the first stepper motor 4. The input end of the first reducer 5 is fixedly connected to the output end of the first stepper motor 4, and the first reducer 5 is fixedly connected to the support frame 3. An electrical performance tester 6 is located on the front side of the first stepper motor 4 and is fixedly connected to the testing base frame 1. The electrical performance tester 6 performs multiple aspects of testing the keyboard circuit board, including electrical parameter testing, functional testing, and data processing and analysis. Through comprehensive testing, it can ensure that the electrical performance of the circuit board meets the design requirements, improving its reliability and stability.

[0031] In some embodiments, according to Figure 2 As shown, the placement assembly includes a placement frame 7 set on top of the detection base 1. Multiple air pipes 8 are fixedly installed at the bottom of the placement frame 7. Suction cups 9 are passed through the bottom of each of the multiple air pipes 8. An air pump 10 is fixedly installed on the top of the placement frame 7. A main pipe 11 is passed through the output end of the air pump 10. An air extraction pipe 12 is passed through the outside of the main pipe 11. One end of the air extraction pipe 12 is connected to the air pipe 8. The air pump 10 can make the suction cups 9 to tighten and loosen the keyboard circuit board, thereby controlling the picking up and placing of the keyboard circuit board.

[0032] In some embodiments, according to Figure 2 As shown, a plurality of small electric cylinders 13 are provided on one side of the placement frame 7. The output ends of the plurality of small electric cylinders 13 are all hinged to the placement frame 7. A positioning frame 14 is hinged to one end of the small electric cylinder 13. The positioning frame 14 is fixedly connected to the detection base frame 1. Through the action of the plurality of small electric cylinders 13, the placement frame 7 can be moved as a whole to the keyboard circuit board, so that the keyboard circuit board can be moved smoothly.

[0033] In some embodiments, according to Figure 3 , 4As shown in Figure 5, the clamping assembly includes a first clamping head 15 rotatably connected to the inner side of the support frame 3. The first clamping head 15 is fixedly connected to the output end of the first reducer 5. A telescopic rod 16 is fixedly provided on the rear side of the first clamping head 15. A second clamping head 17 is provided at the bottom of the first clamping head 15. A pull bead 18 is fixedly provided on the outer side of the first clamping head 15 and the second clamping head 17. The second clamping head 17 is rotatably connected to the support frame 3. A rotating shaft 19 is fixedly provided on the rear side of the second clamping head 17. By controlling the second clamping head 17 through the pull bead 18, the clamping rod 20 can be flipped, thereby clamping and releasing the top of the keyboard circuit board.

[0034] In some embodiments, according to Figure 3 , 5 As shown in Figure 6, a clamping rod 20 is fixedly provided at the top of the rotating shaft 19, a soft rubber plate 21 is fixedly provided at the bottom of the clamping rod 20, an L-shaped clamping plate 22 is provided at the bottom of the soft rubber plate 21, the L-shaped clamping plate 22 is rotatably connected to the second cutting head 17, the L-shaped clamping plate 22 is slidably connected to the detection table 2, a rack 23 is fixedly provided on the rear side of the L-shaped clamping plate 22, and a rack 27 is slidably provided on the top of the rack 23.

[0035] In some embodiments, according to Figure 3 , 6 As shown, a gear 24 meshes between two racks 23. A rotating shaft 25 is fixedly provided on the inner side of the gear 24. A fixed frame 26 is rotatably connected to the outer side of the rotating shaft 25. The rack 27 is fixedly connected to the fixed frame 26. The fixed frame 26 is fixedly connected to the detection base frame 1. A second stepper motor 28 is fixedly provided on one side of the fixed frame 26.

[0036] In some embodiments, according to Figure 6 As shown, a second reducer 29 is provided on one side of the second stepper motor 28. The second reducer 29 is fixedly connected to the fixed frame 26. The input end of the second reducer 29 is fixedly connected to the output end of the second stepper motor 28. The output end of the second reducer 29 is fixedly connected to the rotating shaft 25.

[0037] The working principle of this utility model is as follows: (refer to the appendix of the instruction manual) Figure 1-6 As shown, firstly, the collection box containing a large number of keyboard circuit boards to be tested is placed in the placement slot at the top of the test base frame 1. Then, the small electric cylinder 13 is started. Under the cooperation of multiple small electric cylinders 13, the placement frame 7 is driven to move the ventilation pipe 8 and suction cup 9 close to and contact the top of the keyboard circuit board. Then, the vacuum pump 10 is started so that air enters the ventilation pipe 8 from the suction cup 9 and then enters the vacuum pipe 12 and finally flows into the vacuum pump 10, so that the suction cup 9 sucks the keyboard circuit board tightly.

[0038] Then, the small electric cylinder 13 is started to drive the entire placement frame 7 and the keyboard circuit board to move to the top of the testing platform 2. Then, the second stepper motor 28 is started to drive the rotating shaft 25 to rotate under the action of the second reducer 29. While the rotating shaft 25 rotates, it also drives the gear 24 to rotate. While the gear 24 rotates, it causes the two racks 23 to move. While the racks 23 move, it drives the L-shaped clamping plate 22 to move synchronously. While the L-shaped clamping plate 22 moves, it drives the second clamping head 17 to move synchronously. While the second clamping head 17 moves, it drives the entire support frame 3 to move synchronously, so as to adapt to the size of the keyboard circuit board and clamp its two sides.

[0039] Then turn off the vacuum pump 10, so that the suction cup 9 releases the keyboard circuit board and places it on the L-shaped clamping plate 22. Then start the first step motor 4 and drive the first clamping head 15 to rotate under the action of the first reducer 5. When the first clamping head 15 rotates, it drives the pull ball 18 to rotate, so that the second clamping head 17 rotates synchronously. When the second clamping head 17 rotates, it drives the clamping rod 20 and the soft rubber plate 21 to rotate to a certain angle and approach and clamp the edge of the keyboard circuit board, thereby clamping the top of the keyboard circuit board.

[0040] Then, the appearance and dimensions of the clamped keyboard circuit board are inspected, and then the electrical performance tester 6 is started to perform electrical tests on the keyboard circuit board.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A keyboard circuit board production detection tool, comprising a detection chassis (1), characterized in that: The testing base (1) is provided with a placement component on the top, a testing platform (2) is provided on one side of the placement component, a clamping component is provided on the top of the testing platform (2), and support frames (3) are provided on both sides of the clamping component. The support frames (3) are slidably connected to the testing base (1). A first stepper motor (4) is fixedly provided on the front side of one of the support frames (3), and a first reducer (5) is provided on the rear side of the first stepper motor (4). The input end of the first reducer (5) is fixedly connected to the output end of the first stepper motor (4), and the first reducer (5) is fixedly connected to the support frame (3). An electrical performance tester (6) is provided on the front side of the first stepper motor (4), and the electrical performance tester (6) is fixedly connected to the testing base (1).

2. The keyboard circuit board production inspection tool according to claim 1, characterized in that: The placement assembly includes a placement frame (7) set on the top of the detection base (1). Multiple air pipes (8) are fixedly provided at the bottom of the placement frame (7). Suction cups (9) are provided through the bottom of each of the multiple air pipes (8). A vacuum pump (10) is fixedly provided at the top of the placement frame (7). A main pipe (11) is provided through the output end of the vacuum pump (10). A suction pipe (12) is provided through the outside of the main pipe (11). One end of the suction pipe (12) is connected through the air pipe (8).

3. The keyboard circuit board production and testing fixture according to claim 2, characterized in that: The placement frame (7) is provided with multiple small electric cylinders (13) on one side. The output ends of the multiple small electric cylinders (13) are all hinged to the placement frame (7). One end of the small electric cylinder (13) is hinged to a positioning frame (14). The positioning frame (14) is fixedly connected to the detection base frame (1).

4. The keyboard circuit board production and testing fixture according to claim 1, characterized in that: The clamping assembly includes a first clamping head (15) rotatably connected to the inner side of the support frame (3), the first clamping head (15) being fixedly connected to the output end of the first reducer (5), a telescopic rod (16) being fixedly provided on the rear side of the first clamping head (15), a second clamping head (17) being provided at the bottom of the first clamping head (15), a pull bead (18) being fixedly provided on the outer side of the first clamping head (15) and the second clamping head (17), the second clamping head (17) being rotatably connected to the support frame (3), and a rotating shaft (19) being fixedly provided on the rear side of the second clamping head (17).

5. The keyboard circuit board production and testing fixture according to claim 4, characterized in that: The top of the rotating shaft (19) is fixedly provided with a clamping rod (20), the bottom of the clamping rod (20) is fixedly provided with a soft rubber plate (21), the bottom of the soft rubber plate (21) is provided with an L-shaped clamping plate (22), the L-shaped clamping plate (22) is rotatably connected to the second cutting head (17), the L-shaped clamping plate (22) is slidably connected to the detection table (2), the rear side of the L-shaped clamping plate (22) is fixedly provided with a rack (23), and the top of the rack (23) is slidably provided with a gear frame (27).

6. The keyboard circuit board production and testing fixture according to claim 5, characterized in that: A gear (24) meshes between the two racks (23). A rotating shaft (25) is fixedly provided on the inner side of the gear (24). A fixed frame (26) is rotatably connected to the outer side of the rotating shaft (25). The rack (27) is fixedly connected to the fixed frame (26). The fixed frame (26) is fixedly connected to the detection base (1). A second stepper motor (28) is fixedly provided on one side of the fixed frame (26).

7. The keyboard circuit board production and testing fixture according to claim 6, characterized in that: A second reducer (29) is provided on one side of the second stepper motor (28). The second reducer (29) is fixedly connected to the fixed frame (26). The input end of the second reducer (29) is fixedly connected to the output end of the second stepper motor (28). The output end of the second reducer (29) is fixedly connected to the rotating shaft (25).

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