Circuit board test fixture structure

Abstract

The utility model discloses a circuit board test fixture structure, which comprises a support fixed at the top end of a base and an operating rod arranged on the inner side of the support, a pressing plate is arranged at the bottom end of the operating rod and positioned on the inner side of the support, and vertical rods are arranged on two sides of the operating rod; through the designed smearing assembly, the problems that in the circuit board testing process of an original testing jig, in the process that a pressing plate moves up and down under the guiding effect of a vertical rod by controlling an operating rod, in order to ensure the smoothness of the pressing plate in the up-down moving process, the mode that lubricating oil is smeared manually exists, operation is tedious, and smearing is not uniform are solved; the smearing assembly is arranged in the pressing plate and located on the surface of the vertical rod, so that the pressing plate is synchronously smeared with lubricating oil on the surface of the vertical rod through the smearing assembly in the process of moving up and down through control of the control rod, frequent manual smearing is avoided, and the smearing mode is uniform.

Description

Technical Field

[0001] This utility model belongs to the field of test fixture technology, specifically relating to a circuit board test fixture structure. Background Technology

[0002] The main purpose of circuit board test fixtures is to test the electrical performance and functional integrity of circuit boards. They connect to test points on the circuit board via metal probes, and with the circuit board powered on, acquire key values ​​such as voltage and current values ​​to determine whether the circuit's continuity is normal.

[0003] Existing circuit board testing fixtures, during use, involve placing the circuit board on a base and operating a lever to press a pressure plate against the circuit board, allowing metal probes to connect with test points on the circuit board to determine the circuit continuity. To ensure smooth movement of the pressure plate as it moves up and down using the lever, operators need to periodically apply lubricant to the surface of the vertical rod. This manual application requires multiple tools and suffers from uneven application. Therefore, this invention proposes a new circuit board testing fixture structure. Utility Model Content

[0004] The purpose of this utility model is to provide a circuit board testing fixture structure to solve the problems mentioned in the background art, which involve the need for multiple tools and uneven application of lubricating oil.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a circuit board testing fixture structure, including a support fixed to the top of a base and an operating lever disposed inside the support. A pressure plate is disposed at the bottom of the operating lever and inside the support. Vertical rods are disposed on both sides of the operating lever. An application component is disposed at the connection between the bottom of the vertical rod and the pressure plate. The application component consists of an operating groove, symmetrically arranged support blocks, an oil absorption component, a limiting rod, and a fixing component. The operating groove is opened inside the pressure plate. The symmetrically arranged support blocks are respectively attached to both sides of the vertical rod and located inside the operating groove. The oil absorption component is disposed inside the support blocks. The limiting rod is disposed at one end of the symmetrically arranged support blocks. The fixing component is disposed at the other end of the symmetrically arranged support blocks.

[0006] Preferably, the oil-absorbing assembly consists of an oil tank and a sponge block, with the oil tank located inside the support block and the sponge block located inside the oil tank.

[0007] Preferably, the inner wall of the sponge block is in contact with the outer surface of the vertical rod.

[0008] Preferably, the limiting rod passes through the connection point of one end of the symmetrically arranged support blocks.

[0009] Preferably, the fixing component consists of a fixing groove, a silicone seat, and a fixing block. The fixing block is fixed to the other end of one of the support blocks, the fixing groove is opened at the other end of the other support block, the silicone seat is fixed to the inner wall of the fixing groove, and the fixing block is inserted into the inner side of the silicone seat.

[0010] Preferably, the inner wall edge of the silicone seat has an inclined structure.

[0011] Preferably, the base has multiple operation buttons on its front side.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By designing a coating component, the original test fixture improved the process of manually applying lubricant during circuit board testing. This method involved manipulating a joystick to move the pressure plate up and down under the guidance of a vertical rod. However, this manual application of lubricant was cumbersome and resulted in uneven application. By installing a coating component inside the pressure plate and on the surface of the vertical rod, lubricant is simultaneously applied to the surface of the vertical rod as the pressure plate moves up and down with the joystick. This avoids frequent manual application and provides a more uniform coating. 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 view of the coating component and the side engagement point of the vertical rod of this utility model;

[0016] Figure 3 This is a cross-sectional view of the coating component and the locking part at the end of the vertical rod of this utility model;

[0017] In the diagram: 1. Base; 2. Support; 3. Control lever; 4. Vertical rod; 5. Application component; 51. Operation slot; 52. Support block; 53. Oil absorption component; 531. Oil tank; 532. Sponge block; 54. Limiting rod; 55. Fixing component; 551. Fixing slot; 552. Silicone seat; 553. Fixing block; 6. Pressure plate. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1 to 3 This utility model provides a technical solution: a circuit board testing fixture structure, including a support 2 fixed to the top of a base 1, an operating lever 3 disposed inside the support 2, a pressure plate 6 disposed at the bottom of the operating lever 3 and inside the support 2, vertical rods 4 disposed on both sides of the operating lever 3, and an application component 5 disposed at the connection between the bottom of the vertical rod 4 and the pressure plate 6. The application component 5 consists of an operating groove 51, symmetrically arranged support blocks 52, an oil absorption component 53, a limiting rod 54, and a fixing component 55. The operating groove 51 is formed in the pressure plate 6. Inside, symmetrically arranged support blocks 52 are respectively attached to both sides of the vertical rod 4 and located inside the operating groove 51. An oil-absorbing component 53 is located inside the support blocks 52. A limiting rod 54 is located at one end of the symmetrically arranged support blocks 52, and a fixing component 55 is located at the other end of the symmetrically arranged support blocks 52. Through the designed coating component 5, the original test fixture's operation on the circuit board during testing is improved. By manipulating the control lever 3, the pressure plate 6 moves up and down under the guidance of the vertical rod 4. To ensure smooth up and down movement of the pressure plate 6... The current method of manually applying lubricating oil is cumbersome and results in uneven application. By installing an application component 5 inside the pressure plate 6 and located on the surface of the vertical rod 4, lubricating oil is simultaneously applied to the surface of the vertical rod 4 through the application component 5 as the pressure plate 6 moves up and down under the control of the lever 3. This avoids frequent manual application and provides a more even application. The oil absorption component 53 consists of an oil groove 531 and a sponge block 532. The oil groove 531 is located inside the support block 52, and the sponge block 532 is positioned within the oil groove 531. Inside the sponge block 532, the inner wall of the sponge block 532 is attached to the outer surface of the vertical rod 4. The limiting rod 54 passes through the connection point of one end of the symmetrically arranged support block 52. When the coating component 5 needs to be disassembled, the ends of the symmetrically arranged support blocks 52 are pinched at the same time. With the limiting rod 54 as the center, the other end of the support block 52 is raised, so that the symmetrically arranged support blocks 52 are unfolded and the support blocks 52 are separated from the vertical rod 4, so as to facilitate the filling of oil into the oil absorption component 53 and the replacement of the sponge block 532. Multiple operation buttons are provided on the front side of the base 1.

[0020] In this embodiment, preferably, the fixing component 55 consists of a fixing groove 551, a silicone seat 552, and a fixing block 553. The fixing block 553 is fixed to the other end of one of the support blocks 52. The ends of the symmetrically arranged support blocks 52 are fixed by the fixing component 55, so that the support blocks 52 are fitted onto the surface of the vertical rod 4. The fixing groove 551 is opened at the other end of the other support block 52. The silicone seat 552 is fixed to the inner wall of the fixing groove 551. The fixing block 553 is inserted into the inner side of the silicone seat 552. The inner wall edge of the silicone seat 552 has an inclined structure.

[0021] The working principle and usage process of this utility model are as follows: During the circuit board testing process, the circuit board is placed on the base 1, and the pressure plate 6 is lowered under the guidance of the vertical rod 4 by operating the lever 3. The pressure plate 6 presses against the circuit board, allowing the metal probe to connect with the test point on the circuit board to determine the continuity of the circuit. During the up-and-down movement of the pressure plate 6 by operating the lever 3, the coating component 5, which is sleeved on the surface of the vertical rod 4 and located inside the pressure plate 6, applies lubricating oil to the surface of the vertical rod 4 to ensure the smoothness of the up-and-down movement of the pressure plate 6.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A circuit board testing fixture structure, comprising a support (2) fixed to the top of a base (1) and an operating lever (3) disposed inside the support (2), characterized in that: A pressure plate (6) is provided at the bottom of the control lever (3) and inside the support (2). Vertical rods (4) are provided on both sides of the control lever (3). A coating component (5) is provided at the connection between the bottom of the vertical rod (4) and the pressure plate (6). The coating component (5) consists of an operation groove (51), symmetrically arranged support blocks (52), an oil absorption component (53), a limiting rod (54), and a fixing component (55). The operation groove (51) is opened inside the pressure plate (6). The symmetrically arranged support blocks (52) are respectively attached to both sides of the vertical rod (4) and located inside the operation groove (51). The oil absorption component (53) is located inside the support block (52). The limiting rod (54) is located at one end of the symmetrically arranged support block (52). The fixing component (55) is located at the other end of the symmetrically arranged support block (52).

2. The circuit board testing fixture structure according to claim 1, characterized in that: The oil-absorbing component (53) consists of an oil tank (531) and a sponge block (532). The oil tank (531) is located inside the support block (52), and the sponge block (532) is located inside the oil tank (531).

3. The circuit board testing fixture structure according to claim 2, characterized in that: The inner wall of the sponge block (532) is attached to the outer surface of the vertical rod (4).

4. The circuit board testing fixture structure according to claim 1, characterized in that: The limiting rod (54) passes through one end of the symmetrically arranged support block (52).

5. The circuit board testing fixture structure according to claim 1, characterized in that: The fixing component (55) consists of a fixing groove (551), a silicone seat (552), and a fixing block (553). The fixing block (553) is fixed to the other end of one of the support blocks (52), the fixing groove (551) is opened at the other end of the other support block (52), the silicone seat (552) is fixed to the inner wall of the fixing groove (551), and the fixing block (553) is inserted into the inner side of the silicone seat (552).

6. The circuit board testing fixture structure according to claim 5, characterized in that: The inner wall edge of the silicone seat (552) has an inclined structure.

7. The circuit board testing fixture structure according to claim 1, characterized in that: The base (1) has multiple operation buttons on its front side.

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