Clamp tool for testing circuit board

Abstract

The utility model discloses a clamp tool used for circuit board testing, comprising a base plate, the bottom end of the peripheral side wall of the base plate is provided with a supporting plate, the middle of the base plate is provided with a cross-shaped groove, one side in each groove is provided with a telescopic rod, the telescopic part of the telescopic rod is provided with a push plate, the telescopic rod is internally provided with a spring, and the spring is provided with a clamping groove. A circuit board is placed among the four push plates, a power supply connector bar and a power supply patch cord bar are installed on one side of the upper end of the bottom plate, a test end connector bar is installed on the other side of the upper end of the bottom plate, and a test indicator lamp is arranged at the position, located on one side of the test end connector bar, of the upper end of the bottom plate. A transparent dustproof cover which can be taken down at any time is arranged on the top of the supporting plate. The beneficial effects are that the spring is arranged in the telescopic rod, and the push plate compresses and fixes the circuit board through the spring, thereby guaranteeing that the circuit board cannot rotate due to accidental touch in a test, and facilitating the high-efficiency operation of the circuit board test process.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board testing, in particular to a fixture tool for circuit board testing. Background Art

[0002] The fixture for circuit board testing is a tool specially designed for circuit board testing. It can ensure the accuracy and reliability of circuit boards during the production and testing process. The design and production of circuit board testing fixtures need to take into account the specific size, shape and testing requirements of the circuit board. This includes lateral adjustment components, longitudinal adjustment components, rotation components, etc. to adapt to different types of circuit boards and testing requirements. These fixtures can be customized according to different testing requirements of circuit boards, such as current and voltage functional testing, power board circuit board fixtures and soft boards. The design and production of circuit board testing fixtures is a complex process that requires comprehensive consideration of factors such as the characteristics of the circuit board, testing requirements, and economy. Through careful design and production, the accuracy and reliability of circuit board testing can be ensured.

[0003] A Chinese patent with announcement number CN218122036U discloses a circuit board test fixture, which relates to the field of circuit board testing technology, including a test box, the test box including a bottom plate, a first side plate, a second side plate, a third side plate and a fourth side plate, the lower ends of the first side plate, the second side plate, the third side plate and the fourth side plate are respectively connected to the bottom plate, the bottom plate is provided with a mounting seat for mounting the circuit board under test and a pressing clamp for pressing the circuit board under test; a power terminal block for connecting an external power supply, the power terminal block is arranged on the outside of the first side plate; a power adapter block for transferring the power supply connected from the power terminal block, the power adapter block is arranged above the bottom plate, and the power adapter block is electrically connected to the power terminal block; a test terminal block for connecting the circuit board under test and an external test device, the test terminal block is arranged on the bottom plate.

[0004] When testing the circuit board test fixture of the above patent, the staff places the small circuit board to be tested on the mounting seat, and presses the circuit board to be tested by rotating the pressing clamp, and then connects the voltage at the power end or the output of the signal generator to the power terminal block, the power terminal block is connected to the power adapter terminal block through a first cable, the power adapter terminal block is connected to the power input end or signal input end of the circuit board to be tested through a second cable, the output test point of the circuit board to be tested is connected to the test end terminal block through a third cable, and the test end terminal block is connected to conventional testing instruments such as multimeters and oscilloscopes through a fourth cable. However, when testing the circuit board test fixture of the above patent, the pressing clamp fixes the circuit board to be tested by rotating, and the circuit board to be tested is easily rotated due to accidental touch during the test, resulting in the circuit board being unable to be tested normally. Utility Model Content

[0005] (1) Technical issues to be solved

[0006] The technical problem to be solved by the utility model is to provide a novel circuit board test fixture in which the circuit board to be tested does not rotate during the test, in view of the current status of the existing technology.

[0007] (2) Technical solution

[0008] The utility model is achieved through the following technical scheme: it includes a base plate, a support plate is provided at the bottom end of the side walls around the base plate, a cross-shaped groove is provided in the middle of the base plate, a telescopic rod is installed on one side of each of the grooves, a push plate is installed on the telescopic part of the telescopic rod, a spring is provided inside the telescopic rod, a circuit board is placed between the four push plates, a power terminal block and a power adapter terminal block are installed on one side of the upper end of the base plate, a test end terminal block is installed on the other side of the upper end of the base plate, a test indicator light is provided on the upper end of the base plate on one side of the test end terminal block, and a transparent dust cover that can be removed at any time is provided on the top of the support plate.

[0009] Furthermore, the base plate is connected to the supporting plate by bolts, and the bottom surface of the base plate and the bottom surface of the supporting plate are in the same plane.

[0010] By adopting the above technical solution, the bottom plate and the supporting plate form an integral structure.

[0011] Furthermore, the groove is connected to the fixing portion of the telescopic rod by bolts, and the telescopic portion of the telescopic rod is connected to the push plate by bolts.

[0012] By adopting the above technical solution, the push plate is connected to the groove through the telescopic rod, and the push plate is telescopically moved by the telescopic rod.

[0013] Furthermore, two ends of the telescopic rod are connected to two ends of the spring by bolts.

[0014] By adopting the above technical solution, the push plate is pressed and fixed to the circuit board by the spring.

[0015] Furthermore, the power supply terminal block, the power adapter terminal block, and the test terminal terminal block are connected to the base plate by bolts.

[0016] By adopting the above technical solution, the circuit board is connected to the power supply through the power terminal block, the power adapter block transfers the power input from the power terminal block, and the circuit board is connected to the test equipment through the test terminal block.

[0017] Furthermore, the power supply terminal block, the power adapter terminal block, and the test end terminal block each have two groups of terminal blocks, and each terminal block has a pressing structure to press the terminal end.

[0018] By adopting the above technical solution, each terminal presses the connecting cable through the pressing structure.

[0019] Furthermore, the inner wall of the transparent dust cover has the same size as the side wall of the bottom plate, and the transparent dust cover is fixed to the supporting plate by insertion.

[0020] By adopting the above technical solution, the device can be covered with the transparent dustproof cover to prevent dust when not in use.

[0021] (3) Beneficial effects

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] In order to solve the problem that the existing circuit board test fixture fixes the circuit board under test by rotating the pressing clamp during testing, and the circuit board under test is easily rotated due to accidental touch during the test, resulting in the circuit board being unable to be tested normally, the utility model arranges a spring inside the telescopic rod, and the push plate presses and fixes the circuit board through the spring, ensuring that the circuit board will not rotate due to accidental touch during the test, thereby facilitating the efficient implementation of the circuit board testing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of a fixture for circuit board testing according to the present invention;

[0025] Figure 2 This is a fixture for circuit board testing described in the utility model. Figure 1 Enlarged view of point A in the middle;

[0026] Figure 3 The utility model is an internal cross-sectional view of a telescopic rod in a fixture for circuit board testing.

[0027] The following are the descriptions of the reference numerals:

[0028] 1. Bottom plate; 2. Support plate; 3. Groove; 4. Telescopic rod; 5. Push plate; 6. Circuit board; 7. Power terminal block; 8. Power adapter terminal block; 9. Test terminal block; 10. Test indicator light; 11. Transparent dust cover; 12. Spring. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] like Figure 1-Figure 3 As shown, in this embodiment, a fixture tool for testing a circuit board includes a base plate 1, a support plate 2 is provided at the bottom end of the side walls around the base plate 1, a cross-shaped groove 3 is provided in the middle of the base plate 1, a telescopic rod 4 is installed on one side of each groove 3, a push plate 5 is installed on the telescopic part of the telescopic rod 4, a spring 12 is provided inside the telescopic rod 4, a circuit board 6 is placed between the four push plates 5, a power terminal block 7 and a power adapter terminal block 8 are installed on one side of the upper end of the base plate 1, a test terminal terminal block 9 is installed on the other side of the upper end of the base plate 1, a test indicator light 10 is provided on the upper end of the base plate 1 on one side of the test terminal terminal block 9, a cable is provided inside the base plate 1 to connect the test terminal terminal block 9 and the test indicator light 10, a transparent dust cover 11 that can be removed at any time is provided on the top of the support plate 2, and the transparent dust cover 11 is covered on the device to prevent dust when the device is not in use.

[0031] like Figure 1-Figure 3 As shown, the bottom plate 1 is bolted to the support plate 2, the bottom surface of the bottom plate 1 and the bottom surface of the support plate 2 are in the same plane, the bottom plate 1 and the support plate 2 form an integral structure, the groove 3 is bolted to the fixed part of the telescopic rod 4, the telescopic part of the telescopic rod 4 is bolted to the push plate 5, the push plate 5 is connected to the groove 3 through the telescopic rod 4, the push plate 5 is telescopically moved by the telescopic rod 4, the two ends of the telescopic rod 4 are bolted to the two ends of the spring 12, the push plate 5 is pressed and fixed by the spring 12, the power terminal block 7, the power adapter terminal block 8, and the test end terminal block 9 are bolted to the bottom plate 1, and the circuit board 6 is connected to the bottom plate 1. The power terminal block 7 is connected to the power supply, the power adapter terminal block 8 transfers the power input from the power terminal block 7, the circuit board 6 is connected to the test equipment through the test end terminal block 9, the power terminal block 7, the power adapter terminal block 8, and the test end terminal block 9 have two sets of terminals, each terminal has a pressing structure to press the terminal head, and each terminal presses the connecting cable through the pressing structure. The inner wall of the transparent dust cover 11 is the same size as the side wall of the base plate 1, and the transparent dust cover 11 is inserted and fixed to the support plate 2. The device is covered with the transparent dust cover 11 to prevent dust when not in use.

[0032] The specific implementation process of this embodiment is as follows: when testing the fixture for testing the circuit board, first push the push plate 5 to the edge of the base plate 1, place the circuit board 6 in the middle of the base plate 1, release the push plate 5, and the spring 12 in the telescopic rod 4 will push the push plate 5 to press the circuit board 6, connect the circuit board 6 to the power supply through the power terminal block 7 with a cable, and the power adapter terminal block 8 transfers the power connected to the power terminal block 7, and connect the circuit board 6 to the test equipment through the test end terminal block 9 with a cable. The test indicator light 10 displays the power status of each circuit. The device facilitates the clamping and fixation of the circuit board 6 on the fixture, ensuring that the circuit board will not rotate due to accidental touch during the test, and facilitating the efficient implementation of the circuit board testing process.

[0033] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fixture for circuit board testing, characterized by: The invention comprises a base plate (1), wherein a supporting plate (2) is provided at the bottom end of the side walls around the base plate (1), a cross-shaped groove (3) is provided in the middle of the base plate (1), a telescopic rod (4) is installed on one side of each of the grooves (3), a push plate (5) is installed on the telescopic portion of the telescopic rod (4), a spring (12) is provided inside the telescopic rod (4), a circuit board (6) is placed between the four push plates (5), a power supply terminal block (7) and a power adapter terminal block (8) are installed on one side of the upper end of the base plate (1), a test terminal terminal block (9) is installed on the other side of the upper end of the base plate (1), a test indicator light (10) is provided on the upper end of the base plate (1) on one side of the test terminal terminal block (9), and a transparent dust cover (11) that can be removed at any time is provided on the top of the supporting plate (2).

2. The fixture for circuit board testing according to claim 1, characterized in that: The base plate (1) is connected to the support plate (2) by bolts, and the bottom surface of the base plate (1) and the bottom surface of the support plate (2) are in the same plane.

3. The fixture for circuit board testing according to claim 1, characterized in that: The groove (3) is connected to the fixing portion of the telescopic rod (4) by bolts, and the telescopic portion of the telescopic rod (4) is connected to the push plate (5) by bolts.

4. The fixture for circuit board testing according to claim 3, characterized in that: The two ends of the telescopic rod (4) are connected to the two ends of the spring (12) by bolts.

5. The fixture for circuit board testing according to claim 1, characterized in that: The power supply wiring block (7), the power adapter wiring block (8), and the test terminal wiring block (9) are connected to the base plate (1) by bolts.

6. The fixture for circuit board testing according to claim 5, characterized in that: The power supply wiring block (7), the power adapter wiring block (8), and the test terminal wiring block (9) all have two groups of wiring terminals, and each wiring terminal has a pressing structure to press the wiring terminal head.

7. The fixture for circuit board testing according to claim 1, characterized in that: The inner wall of the transparent dust cover (11) has the same size as the side wall of the bottom plate (1), and the transparent dust cover (11) is fixedly inserted into the supporting plate (2).

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