Universal dial of test fixture

Abstract

The utility model discloses a test fixture universal dial comprising a substrate, the outer surface of the substrate is provided with two sliding grooves, the inner wall of each sliding groove is in sliding connection with a sliding block, the outer surfaces of the two sliding blocks are jointly and fixedly connected with a first movable clamping plate, and the first movable clamping plate is fixedly connected with a second movable clamping plate. A first movable clamping plate is fixedly connected to the outer surface of the base plate, a second movable clamping plate is fixedly connected to the outer surface of the base plate, a fixing assembly is arranged on the outer surface of the first movable clamping plate and the outer surface of the second movable clamping plate jointly, and the fixing assembly comprises four mounting holes. The sliding blocks on the movable clamping plates can slide in the sliding grooves in the base plate, then the first movable clamping plate is made to move, the distance between the two movable clamping plates can be conveniently controlled, follow-up fixing of an object to be detected is facilitated, the object to be detected is placed in the placing grooves in the two movable clamping plates, and therefore the object to be detected can be conveniently fixed. And the two movable clamping plates are fixed together through the fixing assembly, so that the object to be detected is fixed on the substrate.

Description

Technical Field

[0001] This application relates to the field of test fixture technology, and in particular to a universal test fixture needle plate. Background Technology

[0002] Test fixtures are specialized tools used in manufacturing and production processes to test the functionality, performance, and quality of products. They simulate the product's actual working environment or specific testing conditions to measure and verify various product indicators, ensuring that the product meets design requirements and quality standards.

[0003] Currently, universal test fixtures can only test objects of fixed specifications. Testing other specifications requires the use of different types of universal test fixtures. Utility Model Content

[0004] The purpose of this invention is to provide a universal needle plate for testing fixtures to solve the problems mentioned in the background art.

[0005] The embodiments of this application adopt the following technical solutions:

[0006] A universal test fixture includes a base plate. Two sliding grooves are formed on the outer surface of the base plate. A sliding block is slidably connected to the inner wall of each sliding groove. A first movable clamping plate is fixedly connected to the outer surface of the two sliding blocks. A second movable clamping plate is fixedly connected to the outer surface of the base plate. A fixing component is provided on the outer surface of the first movable clamping plate and the outer surface of the second movable clamping plate.

[0007] Preferably, the fixing component includes four mounting holes, with two sets of mounting holes respectively opened on the outer surface of the first movable clamping plate and the outer surface of the second movable clamping plate.

[0008] Preferably, the inner wall of each set of mounting holes is threaded with a long bolt, and the outer surface of each long bolt is threaded with a fixing nut.

[0009] Preferably, the outer surface of the substrate has a plurality of pinholes, and a pin sleeve is fixedly installed on the inner wall of some of the pinholes.

[0010] Preferably, a test needle is fixedly installed inside each of the needle sleeves.

[0011] Preferably, both the outer surfaces of the first movable clamping plate and the outer surfaces of the second movable clamping plate are provided with placement grooves.

[0012] The above-described technical solutions adopted in the embodiments of this application can achieve the following beneficial effects:

[0013] Firstly, by moving the sliding block on the movable clamping plate, it can slide in the sliding groove on the substrate, thereby moving the first movable clamping plate, which makes it easier to control the distance between the two movable clamping plates and facilitates the subsequent fixation of the object to be tested.

[0014] Secondly, by placing the object under test in the placement slots on two movable clamping plates, and then fixing the two movable clamping plates together with a fixing component, the object under test is fixed on the substrate, which facilitates stable testing of the object under test. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 Here is a front view of the structure of this utility model;

[0017] Figure 2 Here is a cross-sectional view of the present invention.

[0018] Figure 3 For: This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0019] Figure 4 See below for a schematic diagram of the structure of this utility model.

[0020] In the figure: 1. Substrate; 2. Sliding groove; 3. Sliding block; 4. First movable clamping plate; 5. Placement groove; 6. Fixing assembly; 601. Mounting hole; 602. Long bolt; 603. Fixing nut; 7. Pin hole; 8. Pin sleeve; 9. Test pin; 10. Second movable clamping plate. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.

[0023] Please see Figure 1-4 This utility model provides a technical solution for a universal needle disc testing fixture:

[0024] A universal needle tray for testing fixtures includes a base plate 1. Two sliding grooves 2 are formed on the outer surface of the base plate 1. A sliding block 3 is slidably connected to the inner wall of each sliding groove 2. A first movable clamping plate 4 is fixedly connected to the outer surface of the two sliding blocks 3. A second movable clamping plate 10 is fixedly connected to the outer surface of the base plate 1. A fixing component 6 is provided on the outer surfaces of the first movable clamping plate 4 and the second movable clamping plate 10. Specifically, the needle tray base plate 1 is the basic load-bearing component of the universal needle tray for testing fixtures, playing a crucial role in the entire testing system. As the main frame of the entire needle tray, it provides a platform for the installation and fixing of test needles 9, adjustable frames, electrical wiring, and other components. The fiberglass base plate 1, with its high strength, can withstand the pressure applied by the test needles 9 during testing, as well as the weight of the test object when placed, ensuring the overall structural stability of the needle tray. The second movable clamping plate 10 is fixed to the base plate 1, while the first movable clamping plate 4 can move on the base plate 1. The movement facilitates clamping the object under test (DUT) between the first movable clamping plate 4 and the second movable clamping plate 10. The first movable clamping plate 4 and the second movable clamping plate 10 can be flexibly adjusted according to the size of the DUT, stably clamping the DUT between them. This ensures that the DUT is in a fixed and accurate position on the probe plate, maintaining a constant relative position between the DUT pins and the test pins 9. This avoids the test pins 9 failing to accurately contact the pins due to the DUT's position shift, laying the foundation for accurate testing. Just like when testing precision circuit boards, precise positioning ensures that the test pins 9 correspond one-to-one with the solder points on the circuit board. By adjusting the position of the two clamping plates, this structure can adapt to DUTs of different sizes and shapes. Whether it is a small electronic component or a large circuit board, it can effectively clamp the DUT in a specific area, making the testing operation more standardized and orderly. Operators can place, clamp, and test the DUT according to a fixed procedure, reducing the difficulty of operation and the probability of errors.

[0025] In this embodiment, the fixing component 6 includes four mounting holes 601. Two sets of mounting holes 601 are respectively opened on the outer surface of the first movable clamping plate 4 and the outer surface of the second movable clamping plate 10. The inner wall of each set of mounting holes 601 is threaded with a long bolt 602, and the outer surface of each long bolt 602 is threaded with a fixing nut 603. Specifically, when fixing the first movable clamping plate 4 and the second movable clamping plate 10, the long bolt 602 is installed in the mounting hole 601, and then the long bolt 602 is fixed on the first movable clamping plate 4 and the second movable clamping plate 10 by the fixing nut 603, thereby completing the fixed installation of the first movable clamping plate 4 and the second movable clamping plate 10, and fixing the test object clamped between the first movable clamping plate 4 and the second movable clamping plate 10 on the substrate 1, which facilitates the subsequent stable detection of the test object.

[0026] In this embodiment, a plurality of pinholes 7 are formed on the outer surface of the substrate 1, and a pin sleeve 8 is fixedly installed on the inner wall of some of the pinholes 7; a test pin 9 is fixedly installed inside each pin sleeve 8; a placement groove 5 is formed on the outer surface of the first movable clamping plate 4 and the outer surface of the second movable clamping plate 10; specifically, the large number of pinholes 7 on the outer surface of the substrate 1 provides a variety of position options for the installation of the test pin 9, which can adapt to the test objects with different pin layouts. The pin sleeves 8 are installed in some of the pinholes 7. According to the actual testing requirements, the pin sleeves 8 and test pins 9 can be selected to be installed in specific pinholes 7. For example, for areas with dense pin spacing or requiring special connections, by changing the pin sleeves 8 and test pins 9 of different specifications, the test plate can adapt to the testing of various products, which greatly improves the versatility of the test plate. The needle sleeve 8 is fixedly installed on the inner wall of the needle hole 7, and the test needle 9 is fixed inside the needle sleeve 8. This structure ensures the stability of the test during the testing process. When testing the product, the test needle 9 needs to maintain a good electrical connection with the pin of the test object. The stable installation can prevent the test needle 9 from shaking or shifting, avoiding inaccurate test data or test failure due to poor contact, and ensuring the reliability of the test results. The existence of the needle sleeve 8 makes the replacement of the test needle 9 more convenient. When the test needle 9 is worn, damaged, or needs to be replaced with a test needle 9 of a different specification to meet new testing requirements, simply remove the damaged or unsuitable test needle 9 from the needle sleeve 8 and replace it with a new test needle 9. There is no need to make large-scale modifications to the entire needle plate, which reduces maintenance costs and time costs.

[0027] Working principle: When using this universal needle plate for testing fixtures, the user first places the object to be tested in the placement slot 5 between the first movable clamping plate 4 and the second movable clamping plate 10, then moves the first movable clamping plate 4 to clamp the object to be tested between the first movable clamping plate 4 and the second movable clamping plate 10. Then, the two movable clamping plates are fixed together using the fixing component 6, and then the object to be tested is installed and fixed on the base plate 1. When installing the test needle 9, the needle sleeve 8 is first installed in the needle hole 7, and then the test needle 9 is installed in the needle sleeve 8 to complete the installation and fixing of the test needle 9.

[0028] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A universal test fixture needle plate, comprising a substrate (1), characterized in that: Two sliding grooves (2) are formed on the outer surface of the substrate (1). A sliding block (3) is slidably connected to the inner wall of each sliding groove (2). A first movable clamping plate (4) is fixedly connected to the outer surface of the two sliding blocks (3). A second movable clamping plate (10) is fixedly connected to the outer surface of the substrate (1). A fixing component (6) is provided on the outer surface of the first movable clamping plate (4) and the outer surface of the second movable clamping plate (10).

2. The universal needle disc for testing fixtures according to claim 1, characterized in that: The fixing component (6) includes four mounting holes (601), and two sets of mounting holes (601) are respectively opened on the outer surface of the first movable clamping plate (4) and the outer surface of the second movable clamping plate (10).

3. The universal needle disc for testing fixtures according to claim 2, characterized in that: Each set of mounting holes (601) has a long bolt (602) threaded onto its inner wall, and each long bolt (602) has a fixing nut (603) threaded onto its outer surface.

4. The universal needle disc for testing fixtures according to claim 1, characterized in that: The outer surface of the substrate (1) is provided with a plurality of pinholes (7), and a pin sleeve (8) is fixedly installed on the inner wall of some of the pinholes (7).

5. A universal test fixture needle plate according to claim 4, characterized in that: Each of the needle sleeves (8) has a test needle (9) fixedly installed inside.

6. The universal needle disc for testing fixtures according to claim 1, characterized in that: Placement grooves (5) are provided on the outer surface of the first movable clamping plate (4) and the outer surface of the second movable clamping plate (10).

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