A detection rack for circuit board production

Abstract

The utility model discloses a detection frame for circuit board production belongs to circuit board production technical field, including base, one side fixedly connected with fixed plate of base top surface, the other side of base top surface is equipped with the moving plate parallel to fixed plate and slides, the base top surface is equipped with two parallel slide groove. This detection frame for circuit board production, through the constant force spring drive extension block movement, to realize the moving plate to the fixed plate side movement, to this through the moving plate cooperation fixed plate realizes the fixation of circuit board, and the clamping fixed step is simple, compared with prior art device, avoids the artificial rotation adjusting screw efficiency too low, and the cost of electric clamping fixation is higher practicality is not ideal problem, also avoided the ordinary compression spring and the tension spring's force will change with the deformation variable change problem, improved the clamping stability and practicality.

Description

Technical Field

[0001] This utility model belongs to the field of circuit board manufacturing technology, and in particular relates to a testing rack for circuit board manufacturing. Background Technology

[0002] Circuit boards are named as follows: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum substrate, high frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, ultra-thin circuit board, printed circuit board (copper etching technology), etc. Circuit boards make circuits miniaturized and intuitive, playing an important role in the mass production of fixed circuits and the optimization of electrical appliance layout.

[0003] Existing circuit board production testing racks are cumbersome for fixing circuit boards, mostly requiring the rotation of adjusting screws to secure them. Manually rotating the adjusting screws is inefficient, while electric clamping is costly. Furthermore, electric clamping requires additional program adjustments when dealing with circuit boards of different sizes, making it impractical.

[0004] To address this issue, we propose a testing fixture for circuit board production. Utility Model Content

[0005] The purpose of this utility model is to solve the problems of cumbersome circuit board fixing and unsatisfactory practicality in the prior art, and to propose a testing rack for circuit board production.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A testing rack for circuit board production includes a base. A fixed plate is fixedly connected to one side of the top surface of the base, and a movable plate parallel to the fixed plate is slidably provided on the other side of the top surface of the base. Two parallel sliding grooves are formed on the top surface of the base. Two extension blocks extending into the two sliding grooves are fixedly connected to the bottom surface of the movable plate. A constant force spring is provided in the sliding groove to drive the extension blocks to move towards the fixed plate. A mounting groove is formed on the top surface of the base between the two sliding grooves, and a mounting plate is fixedly installed in the mounting groove. The two sides of the mounting plate extend above the two sliding grooves respectively. Limiting grooves for the mounting plate to be inserted are formed on the facing sides of the two extension blocks. A power supply component for supplying power to the circuit board is provided on one side of the top surface of the base.

[0008] Preferably, the surfaces of the movable plate and the fixed plate facing each other are inclined.

[0009] Preferably, the movable plate has two cavities, and an upper pulley is rotatably mounted in the cavity. The bottom end of the upper pulley extends to the lower outer side of the movable plate and fits against the top surface of the mounting plate.

[0010] Preferably, the bottom of the limiting groove is rotatably mounted with two lower sliding wheels that fit against the bottom surface of the mounting plate, and the upper sliding wheel is located between the two lower sliding wheels.

[0011] Preferably, grooves for engaging pulleys are provided on both sides of the top surface of the mounting plate.

[0012] Preferably, the power supply component includes a power supply fixedly installed in the base, the power supply output end is fixedly connected to a power supply line, the top surface of the base has a through hole for the power supply line to pass through, and an elastic clip that matches the power supply line is fixedly connected to one side of the through hole.

[0013] In summary, the technical effects and advantages of this utility model are as follows: This circuit board production testing frame uses a constant force spring to drive the extension block to move, thereby moving the moving plate towards the fixed plate. The circuit board is then fixed by the moving plate in conjunction with the fixed plate. The clamping and fixing steps are simple. Compared with existing devices, it avoids the problems of low efficiency due to manual rotation of the adjusting screw and high cost and unsatisfactory practicality of electric clamping and fixing. It also avoids the problem that the force applied by ordinary compression springs and tension springs changes with deformation, thus improving clamping stability and practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional side view of the present invention;

[0016] Figure 3 This is a cross-sectional front view of the present invention;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the limiting groove in this utility model;

[0018] Figure 5 for Figure 1 Enlarged view of point A in the middle.

[0019] In the diagram: 1. Base; 2. Fixed plate; 3. Moving plate; 4. Slide groove; 5. Extension block; 6. Constant force spring; 7. Mounting groove; 8. Mounting plate; 9. Limiting groove; 10. Cavity; 11. Upper pulley; 12. Lower pulley; 13. Groove; 14. Power supply; 15. Power supply line; 16. Through hole; 17. Elastic clip. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-3A testing rack for circuit board production includes a base 1. A fixed plate 2 is fixedly connected to one side of the top surface of the base 1. A movable plate 3, parallel to the fixed plate 2, is slidably arranged on the other side of the top surface of the base 1. Two parallel sliding grooves 4 are formed on the top surface of the base 1. Two extension blocks 5, extending into the two sliding grooves 4 respectively, are fixedly connected to the bottom surface of the movable plate 3. A constant force spring 6 is provided in the sliding groove 4 to drive the extension blocks 5 to move towards the fixed plate 2. One end of the constant force spring 6 is fixedly connected to the end of the sliding groove 4 near the fixed plate 2 by a screw. The extension blocks 5 are located between the two ends of the constant force spring 6 and are moved by the bent section of the constant force spring 6. There is no connection between the extension blocks 5 and the constant force spring 6. (Refer to...) Figure 2-4 A mounting groove 7 is provided on the top surface of the base 1 between the two sliding grooves 4, and a mounting plate 8 is fixedly installed in the mounting groove 7. The mounting plate 8 extends to the top of the two sliding grooves 4 on both sides, and limiting grooves 9 are provided on the facing sides of the two extension blocks 5 for the mounting plate 8 to be inserted. (Refer to...) Figure 1 , Figure 5 The top surface of the base 1 is provided with a power supply component that supplies power to the circuit board.

[0022] In use, this circuit board production testing fixture first places one end of the circuit board against the side of the movable plate 3 facing the fixed plate 2. The circuit board applies force to the movable plate 3, driving it away from the fixed plate 2, until the other end of the circuit board is also positioned between the movable plate 3 and the fixed plate 2. At this point, the circuit board is released, and the constant force spring 6 applies a force to the extension block 5 towards the fixed plate 2, thereby driving the movable plate 3 to move and cooperate with the fixed plate 2 to clamp and fix the circuit board. After completion, power is supplied to the circuit board's power input port 14 via the power supply component to begin the power-on function test.

[0023] After the test is completed, the power supply component is separated from the circuit board. After completion, the user pushes the moving plate 3 away from the fixed plate 2 with one hand, and the circuit board is released from clamping. At this time, the user can use the other hand to take out the circuit board. The above is the entire process of using the test rack for the production of this circuit board.

[0024] Reference Figure 2-4 The faces of the movable plate 3 and the fixed plate 2 facing each other are inclined. The cross-sections of the movable plate 3 and the fixed plate 2 are right-angled trapezoids, wider at the top and narrower at the bottom. This allows the movable plate 3 and the fixed plate 2 to apply a downward component force to the circuit board, thereby improving the stability of the circuit board during fixation. Anti-slip buffer pads can be fixedly connected to the inclined sides of the movable plate 3 and the fixed plate 2 to improve clamping stability and prevent damage caused by uneven force due to direct contact between the movable plate 3 and the fixed plate 2 and the circuit board.

[0025] The movable plate 3 has two cavities 10. An upper pulley 11 is rotatably installed in the cavity 10. The bottom end of the upper pulley 11 extends to the lower outer side of the movable plate 3 and fits against the top surface of the mounting plate 8. The upper pulley 11 reduces the friction when the movable plate 3 moves and improves the smoothness of the movable plate 3.

[0026] Reference Figure 2-4 Two lower pulleys 12 are rotatably mounted at the bottom of the limiting groove 9, fitting against the bottom surface of the mounting plate 8, with an upper pulley 11 located between the two lower pulleys 12. Relying on the two lower pulleys 12 and the upper pulley 11, in conjunction with the fixed mounting plate 8, the moving plate 3 is limited, preventing it from tilting or rotating during movement and improving its stability.

[0027] Grooves 13 are provided on both sides of the top surface of the mounting plate 8 to cooperate with the upper pulley 11. The upper pulley 11 is limited by the grooves 13, thereby improving the rotational stability of the upper pulley 11 and further improving the movement stability of the moving plate 3.

[0028] Reference Figure 1 , Figure 5 The power supply assembly includes a power supply 14 fixedly installed inside the base 1. A power supply cable 15 is fixedly connected to the output end of the power supply 14. A through hole 16 is provided on the top surface of the base 1 for the power supply cable 15 to pass through. A flexible clip 17, which mates with the power supply cable 15, is fixedly connected to one side of the top of the through hole 16. During circuit board testing, the power supply cable 15 is pulled upwards. When the power supply cable 15 extends to the appropriate length from the through hole 16, it is clipped into the flexible clip 17 at the through hole 16, thus preventing the power supply cable 15 from falling back into the through hole 16 due to its own weight. After the power supply cable 15 is clipped into the flexible clip 17, the end of the power supply cable 15 can be inserted into the power input port of the circuit board 14, and power-on testing can begin. After the test is completed, the end of the power supply line 15 is separated from the circuit board, and then the power supply line 15 is removed from the elastic clip 17. Under its own weight, the power supply line 15 automatically falls back into the through hole 16. Since the end of the power supply line 15 is thicker than the body of the power supply line 15, it can be stuck on the through hole 16 or the elastic clip 17 to prevent the power supply line 15 from falling completely into the through hole 16.

[0029] The elastic clip 17 can be a V-shaped plastic part. Auxiliary blocks extend inward on both sides of the V-shaped plastic part. The internal space of the V-shaped plastic part is divided into two parts by the two auxiliary blocks. The cross-section of the larger space is larger than the cross-section of the power supply line 15 body, but smaller than the cross-section of the port of the power supply line 15. The cross-section of the smaller space is smaller than the cross-section of the power supply line 15 body. The smaller space side can be locked with the power supply line 15 body by the elastic deformation of the plastic part.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A testing rack for circuit board production, comprising a base (1), characterized in that, A fixed plate (2) is fixedly connected to one side of the top surface of the base (1), and a movable plate (3) parallel to the fixed plate (2) is slidably provided on the other side of the top surface of the base (1). Two parallel sliding grooves (4) are opened on the top surface of the base (1). Two extension blocks (5) extending into the two sliding grooves (4) are fixedly connected to the bottom surface of the movable plate (3). A constant force spring (6) is provided in the sliding groove (4) to drive the extension blocks (5) to move toward the fixed plate (2). An installation groove (7) is opened on the top surface of the base (1) between the two sliding grooves (4), and an installation plate (8) is fixedly installed in the installation groove (7). The two sides of the installation plate (8) extend above the two sliding grooves (4). A limiting groove (9) for the installation plate (8) to be inserted is opened on the opposite sides of the two extension blocks (5). A power supply component for supplying power to the circuit board is provided on one side of the top surface of the base (1).

2. The testing fixture for circuit board production according to claim 1, characterized in that, The surfaces of the movable plate (3) and the fixed plate (2) facing each other are inclined.

3. The testing fixture for circuit board production according to claim 1, characterized in that, The movable plate (3) has two cavities (10) inside, and an upper pulley (11) is rotatably provided in the cavity (10). The bottom end of the upper pulley (11) extends to the lower outer side of the movable plate (3) and fits against the top surface of the mounting plate (8).

4. The testing fixture for circuit board production according to claim 3, characterized in that, The bottom of the limiting groove (9) is rotatably mounted with two sliding wheels (12) that fit the bottom surface of the mounting plate (8), and the upper pulley (11) is located between the two sliding wheels (12).

5. A testing fixture for circuit board production according to claim 4, characterized in that, The mounting plate (8) has grooves (13) on both sides of its top surface that are designed to fit the pulley (11).

6. The testing fixture for circuit board production according to claim 1, characterized in that, The power supply assembly includes a power supply (14) fixedly installed in the base (1), the output end of the power supply (14) is fixedly connected to a power supply line (15), the top surface of the base (1) is provided with a through hole (16) for the power supply line (15) to pass through, and an elastic clip (17) that cooperates with the power supply line (15) is fixedly connected to one side of the through hole (16).

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