A circuit board testing apparatus with a four-line clamp quick clamping device

Abstract

The utility model discloses a kind of circuit board testing equipment with four-line clamp quick clamping device, it is related to circuit board testing equipment technical field, including base, base upper portion is fixedly connected with testing equipment main body, and base upper portion is fixedly connected with clamping mechanism and support mechanism, support mechanism is located below clamping mechanism.The utility model, by handle, connecting shaft, the clamping mechanism of one spring etc., realize the quick clamping and release of circuit board, and the fixed circuit board pin foot of pressing end can be made by pulling handle, reverse pulling cooperation one spring can quickly unfasten clamping, the fixed end of support mechanism and pressing end accurate alignment, limit plate ensures that pressing frame moves stably, guarantee positioning accuracy, one spring provides elastic buffer, guarantee the clamping force of pressing end to different thickness circuit board is even, avoid bad contact and circuit board deformation.

Description

Technical Field

[0001] This utility model relates to the field of circuit board testing equipment technology, and in particular to a circuit board testing equipment with a four-wire clamping device for quick clamping. Background Technology

[0002] Circuit board testing equipment is a professional instrument used to detect whether circuit boards have electrical performance defects, soldering quality problems or functional failures. Its core function is to ensure that circuit boards meet design standards during the manufacturing or repair process and to avoid equipment failure or performance abnormalities caused by defects.

[0003] However, in the existing technology, the clamping devices of circuit board testing equipment mostly adopt conventional mechanical structures or simple fixtures, which have problems such as low clamping efficiency, insufficient positioning accuracy, and poor adaptability. In particular, when dealing with circuit boards of different specifications, the fixtures need to be changed frequently, which is time-consuming and laborious, and is prone to positioning deviation due to human operation. At the same time, it is difficult to guarantee the uniformity of clamping force, which may cause poor test contact or circuit board deformation. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a circuit board testing device with a four-wire clamping quick clamping device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a circuit board testing device with a four-wire clamping quick clamping device, comprising a base, a testing device body fixedly connected to the upper part of the base, and a clamping mechanism and a support mechanism fixedly connected to the upper part of the base. The support mechanism is located below the clamping mechanism. Connecting wires are respectively connected and fixed to the testing device body and the clamping mechanism. The clamping mechanism includes a connecting frame, a handle, and a limiting plate. A connecting plate is rotatably connected to the outer side of the connecting frame, and a pressing frame is rotatably connected to the inner side of the connecting frame. A connecting shaft is fixedly connected to the upper part of the connecting plate. One end of the handle is rotatably connected to the pressing frame, and the handle is movably connected to the connecting shaft. The limiting plate is fixedly connected to the connecting shaft, and the limiting plate is in contact with the upper part of the pressing frame. A pressing end is fixedly connected to the end of the pressing frame.

[0006] Preferably, the handle surface is provided with a through groove, and the connecting shaft is located inside the through groove and is movably connected to the handle.

[0007] Preferably, a No. 1 spring is installed at the end of the limiting plate, and one end of the No. 1 spring is movably connected to the inside of the clamping frame.

[0008] Preferably, the connecting wire is fixedly connected to the top of the pressing end.

[0009] Preferably, the support mechanism includes a telescopic rod, a fixed end is fixedly connected to the upper part of the telescopic rod, a second spring is provided on the surface of the telescopic rod, the bottom of the telescopic rod is fixedly connected to the base, one end of the second spring is fixedly connected to the base, and the other end of the second spring is fixedly connected to the fixed end.

[0010] Preferably, a fixing plate is fixedly connected to the side of the fixing end, and a limit rod is fixedly connected to the upper part of the base, with the limit rod being inserted into the fixing plate.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, a clamping mechanism composed of a handle, a connecting shaft, and a No. 1 spring enables rapid clamping and release of the circuit board. Moving the handle presses down on the circuit board pins, while moving it in the opposite direction, in conjunction with the No. 1 spring, quickly releases the clamp. The fixed end of the support mechanism is precisely aligned with the clamping end, and the limiting plate ensures stable movement of the clamping frame and guarantees positioning accuracy. The No. 1 spring provides elastic buffering, ensuring uniform clamping force on circuit boards of different thicknesses and preventing poor contact and circuit board deformation. Furthermore, the connection between the connecting wire and the clamping end, combined with the four-wire method principle, improves testing accuracy. The overall structure effectively solves the problems of low clamping efficiency, inaccurate positioning, and poor adaptability of existing equipment, achieving efficient, accurate, and universal circuit board testing.

[0013] 2. In this utility model, the support mechanism effectively improves the safety and stability of circuit board testing through the coordinated design of the telescopic rod, the second spring, the fixed plate, and the limiting rod. When the pressing end presses down to fix the circuit board pins, the telescopic rod and the second spring undergo elastic deformation, which can adaptively adjust the distance between the fixed end and the pressing end, minimizing the problem of pressure damage caused by pin size differences and protecting the circuit board from damage. At the same time, the fixed plate slides along the limiting rod, providing precise guidance for the up and down movement of the fixed end, controlling the offset error within a very small range, and ensuring that the pins and the fixture maintain stable contact during the test, thereby improving the reliability and consistency of the test results. Attached Figure Description

[0014] Figure 1 This utility model provides a first three-dimensional structural schematic diagram of a circuit board testing device with a four-wire clamping quick clamping device;

[0015] Figure 2 This utility model provides a second three-dimensional structural diagram of a circuit board testing device with a four-wire clamping quick clamping device;

[0016] Figure 3 This utility model provides a front view structural diagram of the support mechanism in a circuit board testing device with a four-wire clamping quick clamping device;

[0017] Figure 4 This invention provides a schematic diagram of the internal structure of the connecting frame in a circuit board testing device with a four-wire clamping quick clamping device.

[0018] Legend: 1. Base; 2. Main body of the testing equipment; 3. Connecting cable; 4. Clamping mechanism; 41. Connecting frame; 42. Pressing frame; 43. Connecting plate; 44. Limiting plate; 45. Connecting shaft; 46. Handle; 47. Spring No. 1; 48. Pressing end; 5. Support mechanism; 51. Telescopic rod; 52. Spring No. 2; 53. Fixed end; 54. Fixed plate; 55. Limiting rod. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1: As Figures 1-4 As shown, this utility model provides a circuit board testing device with a four-wire clamping quick clamping device, including a base 1, a testing device body 2 fixedly connected to the upper part of the base 1, and a clamping mechanism 4 and a support mechanism 5 fixedly connected to the upper part of the base 1. The support mechanism 5 is located below the clamping mechanism 4. Connecting wires 3 are respectively connected and fixed to the testing device body 2 and the clamping mechanism 4. The clamping mechanism 4 includes a connecting frame 41, a handle 46 and a limiting plate 44. A connecting plate 43 is rotatably connected to the outer side of the connecting frame 41, and a clamping frame 42 is rotatably connected to the inner side of the connecting frame 41. A connecting shaft 45 is fixedly connected to the upper part. One end of the handle 46 is rotatably connected to the clamping frame 42, and the handle 46 is movably connected to the connecting shaft 45. The limiting plate 44 is fixedly connected to the connecting shaft 45, and the limiting plate 44 is in contact with the upper part of the clamping frame 42. The end of the clamping frame 42 is fixedly connected to the holding end 48. A through groove is provided on the surface of the handle 46. The connecting shaft 45 is located inside the through groove and is movably connected to the handle 46. A first spring 47 is installed at the end of the limiting plate 44. One end of the first spring 47 is movably connected to the inner side of the clamping frame 42. The connecting line 3 is fixedly connected to the top of the holding end 48.

[0022] The specific settings and functions of this embodiment are described below. The pins of the circuit board to be tested are placed on the surface of the fixed end 53. By turning the handle 46, the limiting plate 44 is slid along the upper part of the clamping frame 42, so that the end of the clamping frame 42 with the holding end 48 is pressed down, fixing the pins between the holding end 48 and the connecting shaft 45, which facilitates quick installation and fixing. When it is necessary to release the clamp, the handle 46 is turned in the opposite direction, and the clamping frame 42 is lifted by the first spring 47. After the circuit board is fixed, the circuit board is tested by the main body 2 of the testing equipment.

[0023] The clamping mechanism 4, composed of handle 46, connecting shaft 45, and spring 47, enables rapid clamping and release of the circuit board. Moving handle 46 causes the clamping end 48 to press down and fix the circuit board pins; moving it in the opposite direction, in conjunction with spring 47, quickly releases the clamp. The fixed end 53 of the support mechanism 5 is precisely aligned with the clamping end 48, and the limiting plate 44 ensures stable movement of the clamping frame 42, guaranteeing positioning accuracy. Spring 47 provides elastic buffering, ensuring uniform clamping force of the clamping end 48 on circuit boards of different thicknesses, preventing poor contact and circuit board deformation. Furthermore, the connection between connecting wire 3 and the clamping end 48, combined with the four-wire method principle, improves testing accuracy. The overall structure effectively solves the problems of low clamping efficiency, inaccurate positioning, and poor adaptability of existing equipment, achieving efficient, accurate, and universal circuit board testing.

[0024] Example 2: Figure 2 , Figure 3 and Figure 4 As shown, the support mechanism 5 includes a telescopic rod 51, a fixed end 53 is fixedly connected to the upper part of the telescopic rod 51, and a second spring 52 is provided on the surface of the telescopic rod 51. The bottom of the telescopic rod 51 is fixedly connected to the base 1. One end of the second spring 52 is fixedly connected to the base 1, and the other end of the second spring 52 is fixedly connected to the fixed end 53. A fixed plate 54 is fixedly connected to the side of the fixed end 53. A limit rod 55 is fixedly connected to the upper part of the base 1, and the limit rod 55 is inserted into the fixed plate 54.

[0025] The overall effect of this embodiment is that when the pressing end 48 presses the needle down, the telescopic rod 51 and the second spring 52 at the bottom of the fixed end 53 undergo compression deformation. Through the telescopic deformation of the telescopic rod 51 and the second spring 52, the pressing end 48 and the fixed end 53 can be prevented from damaging the needle when the needle size is too large. When the fixed end 53 moves up and down, the fixed plate 54 slides along the limiting rod 55 to limit the movement of the fixed end 53.

[0026] The support mechanism 5, through the coordinated design of the telescopic rod 51, the second spring 52, the fixing plate 54, and the limiting rod 55, effectively improves the safety and stability of the circuit board during testing. When the pressing end 48 presses down to fix the circuit board pins, the telescopic rod 51 and the second spring 52 undergo elastic deformation, which can adaptively adjust the distance between the fixing end 53 and the pressing end 48, minimizing the risk of damage caused by pin size differences and protecting the circuit board from damage. At the same time, the fixing plate 54 slides along the limiting rod 55, providing precise guidance for the up and down movement of the fixing end 53, controlling the offset error within a very small range, and ensuring that the pins and the fixture maintain stable contact during testing, thereby improving the reliability and consistency of the test results.

[0027] The usage and working principle of this device are as follows: Place the pins of the circuit board to be tested on the surface of the fixed end 53. By turning the handle 46, the limiting plate 44 is slid along the upper part of the clamping frame 42, so that the end of the clamping frame 42 with the holding end 48 is pressed down, fixing the pins between the holding end 48 and the connecting shaft 45, which facilitates quick installation and fixing. When it is necessary to release the clamp, turn the handle 46 in the opposite direction, and the clamping frame 42 is lifted by the first spring 47. After the circuit board is fixed, the circuit board is tested by the main body 2 of the testing equipment.

[0028] When the holding end 48 presses the needle down, the telescopic rod 51 and the second spring 52 at the bottom of the fixed end 53 are compressed. The telescopic rod 51 and the second spring 52 can prevent the holding end 48 and the fixed end 53 from damaging the needle when the needle size is too large. When the fixed end 53 moves up and down, the fixed plate 54 slides along the limiting rod 55 to limit the movement of the fixed end 53.

[0029] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A circuit board testing device with four-line clamp quick clamping device, comprising a base (1) and a connecting line (3), the upper part of the base (1) is fixedly connected with a testing device body (2), and the upper part of the base (1) is fixedly connected with a clamping mechanism (4) and a supporting mechanism (5), the supporting mechanism (5) is located below the clamping mechanism (4), and the connecting line (3) is respectively connected and fixed with the testing device body (2) and the clamping mechanism (4), characterized in that: The clamping mechanism (4) includes a connecting frame (41), a handle (46) and a limiting plate (44). The connecting frame (41) is rotatably connected to a connecting plate (43) on its outer side and a pressing frame (42) is rotatably connected to the inner side of the connecting frame (41). A connecting shaft (45) is fixedly connected to the upper part of the connecting plate (43). One end of the handle (46) is rotatably connected to the pressing frame (42) and the handle (46) is movably connected to the connecting shaft (45). The limiting plate (44) is fixedly connected to the connecting shaft (45) and the limiting plate (44) is in contact with the upper part of the pressing frame (42). A pressing end (48) is fixedly connected to the end of the pressing frame (42). ​ 2. The circuit board testing equipment with a four-wire clamping device for quick clamping as described in claim 1, characterized in that: The handle (46) has a through groove on its surface, and the connecting shaft (45) is located inside the through groove and is movably connected to the handle (46).

3. The circuit board testing apparatus with four-point probe quick clamping device according to claim 1, characterized in that: A first spring (47) is installed at the end of the limiting plate (44), and one end of the first spring (47) is movably connected to the inside of the clamping frame (42).

4. The circuit board testing apparatus having a four-point probe quick clamping device according to claim 1, wherein: The connecting line (3) is fixedly connected to the top of the pressing end (48).

5. The circuit board testing apparatus having a four-point probe quick clamping device according to claim 1, wherein: The support mechanism (5) includes a telescopic rod (51), a fixed end (53) is fixedly connected to the upper part of the telescopic rod (51), and a second spring (52) is provided on the surface of the telescopic rod (51). The bottom of the telescopic rod (51) is fixedly connected to the base (1). One end of the second spring (52) is fixedly connected to the base (1), and the other end of the second spring (52) is fixedly connected to the fixed end (53).

6. A circuit board testing apparatus with a four-point fixture quick clamping device according to claim 5, characterized in that: A fixing plate (54) is fixedly connected to the side of the fixing end (53), and a limiting rod (55) is fixedly connected to the upper part of the base (1). The limiting rod (55) is inserted into the fixing plate (54).

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