Soaking sheet testing tool

Abstract

A soaking piece testing tool relates to the technical field of testing tools and comprises a tool base station, the upper surface of the tool base station is connected with a limiting cover plate attached to the tool base station through a suction structure, and a material pit hole and a reference plane hole are formed in the limiting cover plate. According to the utility model, the problem that the testing precision of the planeness, parallelism and height of the soaking sheet cannot be improved due to the fact that a testing tool in the prior art is limited by the structure is solved.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically to a testing fixture for heat spreaders. Background Technology

[0002] Heat sinks are widely used in the field of heat dissipation for electronic devices, and the accuracy of their flatness, parallelism, and height has a significant impact on heat dissipation effect and equipment performance.

[0003] A prior art patent with publication number CN115265421A discloses a solution including a testing platform. The platform is equipped with a 3D line laser that reciprocates horizontally, and a fixture that slides vertically. Several heat spreader products are mounted on the fixture. This solution addresses the shortcomings of traditional heat spreader flatness testing devices, which suffer from low accuracy, inability to simultaneously test multiple heat spreaders, and low testing efficiency, thus reducing production efficiency.

[0004] With use, existing devices, including those mentioned above, have gradually revealed shortcomings in this technology, mainly in the following aspects:

[0005] With the continuous development of industry, and based on the comprehensive consideration of high product quality requirements and production efficiency, heat sink products have increasingly higher requirements for the accuracy of flatness, parallelism, and height. Existing testing fixtures are limited by structural constraints and cannot improve the testing accuracy of the flatness, parallelism, and height of heat sinks.

[0006] As can be seen from the above, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a heat spreader testing fixture, which solves the problem that traditional testing fixtures are limited by structural constraints and cannot improve the testing accuracy of the flatness, parallelism, and height of the heat spreader.

[0008] To achieve the above objectives, the present invention provides the following technical solution.

[0009] A heat spreader testing fixture includes a fixture base. The upper surface of the fixture base is connected to a limiting cover plate that fits therewith via a suction structure. The limiting cover plate is provided with a material pit hole and a reference plane hole.

[0010] As an optimized solution, the tooling base has a groove extending through its upper surface on its side wall.

[0011] As an optimized solution, the attraction structure includes a magnet fixed to the top of the tooling base, the upper end of the magnet not higher than the upper surface of the tooling base, and the lower surface of the limiting cover plate attracting the upper surface of the magnet.

[0012] As an optimized solution, four magnets are provided, each located near one of the four corners of the tooling base.

[0013] As an optimized solution, the top of the tooling base is provided with a mounting groove corresponding to each of the magnets, and the magnets are fixed in the mounting grooves.

[0014] As an optimized solution, four grooves are provided, located on the four side walls of the tooling base.

[0015] As an optimized solution, the material pit holes are arranged in a matrix.

[0016] As an optimized solution, the reference plane holes are arranged in a matrix.

[0017] As an optimized solution, the flatness of the upper surface of the tooling base is no greater than 2μm.

[0018] As an optimized solution, the material pit holes are arranged in four rows and four columns.

[0019] As an optimized solution, the reference plane holes are arranged in two rows and two columns.

[0020] As an optimized solution, each of the reference plane holes is located at the center position between the four material pit holes near the corner.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. This fixture can be used to fix the measurement baseline and set up a dedicated measurement program, which can effectively improve measurement efficiency. Throughout the production process, it can ensure the consistency of measurement points and the consistency of the measurement base surface, thereby improving the consistency of measurement results and increasing the reliability of measurement results.

[0023] 2. The tooling includes a limiting structure, allowing inspectors of varying experience to simply place the sample into the material pit and start the measurement program to complete the work accurately and reliably, significantly improving ease of operation and simplicity; 3. The upper and lower structures are easy to disassemble, facilitating daily cleaning, maintenance, and parts replacement. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the assembled structure of this utility model.

[0027] In the diagram: 1-Tooling base; 2-Limiting cover plate; 3-Material pit hole; 4-Reference plane hole; 5-Groove; 6-Magnet; 7-Mounting groove; 8-Product to be tested. Detailed Implementation

[0028] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0029] like Figure 1 and Figure 2 As shown, the heat spreader test fixture includes a fixture base 1. The upper surface of the fixture base 1 is connected to a limiting cover plate 2 that fits therewith through a suction structure. The limiting cover plate 2 is provided with a material pit hole 3 and a reference plane hole 4.

[0030] The tooling base 1 has a groove 5 that runs through its upper surface on the side wall.

[0031] The attraction structure includes a magnet 6 fixed to the top of the tooling base 1. The upper end of the magnet 6 is not higher than the upper surface of the tooling base 1, and the lower surface of the limiting cover plate 2 is attracted to the upper surface of the magnet 6.

[0032] There are four magnets 6, which are located near the four corners of the tooling base 1.

[0033] The top of the tooling base 1 has a mounting groove 7 corresponding to each magnet 6, and the magnet 6 is fixed in the mounting groove 7.

[0034] There are four grooves 5, which are located on the four side walls of the tooling base 1.

[0035] The material pit holes 3 are arranged in a matrix.

[0036] The reference plane holes 4 are arranged in a matrix.

[0037] The flatness of the upper surface of the tooling base 1 is no greater than 2μm.

[0038] The material pit holes 3 are arranged in four rows and four columns.

[0039] The reference plane holes 4 are arranged in two rows and two columns.

[0040] Each reference plane hole 4 is located at the center position between the four material pit holes 3 near the corner.

[0041] The working principle of this device is as follows:

[0042] Product height measurement:

[0043] 1. Place the product to be tested with its 8TOP side facing up in the material pit hole, adjust the light source and automatically focus to the zero point (i.e., the reference plane part exposed by the reference plane hole of the limit cover plate is used as the zero surface) and take the point.

[0044] 2. Adjust the lens magnification until the 8TOP face of the product under test is in focus, and take a point on the 8TOP face of the product under test as the height measurement point. The data between the measurement point and the zero point is the height of the product.

[0045] Using this fixture, a dedicated measurement program can be established on the equipment using a certain feature of the fixture as a coordinate axis. In this way, before each batch of measurements, you only need to place the part to be measured on the fixture and start the program. Advantages: high efficiency, high consistency of measurement points, and reliable measurement results.

[0046] Product flatness measurement:

[0047] 1. Place the product to be tested with the 8TOP side facing up in the material pit hole, adjust the light source and automatically focus for clarity;

[0048] 2. Construct a plane by taking multiple points on the 8-top surface of the product to be tested, and the measurement data is the flatness of the product;

[0049] Using this fixture, a dedicated measurement program can be established on the equipment using a certain feature of the fixture as a coordinate axis. In this way, before each batch of measurements, you only need to place the part to be measured on the fixture and start the program. Advantages: high efficiency, high consistency of measurement points, and reliable measurement results.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A heat spreader testing fixture, characterized in that: It includes a tooling base (1), and the upper surface of the tooling base (1) is connected to a limiting cover plate (2) that fits therewith through a suction structure. The limiting cover plate (2) is provided with a material pit hole (3) and a reference plane hole (4).

2. The heat spreader testing fixture according to claim 1, characterized in that: The tooling base (1) has a groove (5) that penetrates its upper surface on its side wall.

3. The heat spreader testing fixture according to claim 1, characterized in that: The attraction structure includes a magnet (6) fixed to the top of the tooling base (1), the upper end of the magnet (6) is not higher than the upper surface of the tooling base (1), and the lower surface of the limiting cover plate (2) is attracted to the upper surface of the magnet (6).

4. The heat spreader testing fixture according to claim 3, characterized in that: The magnet (6) is provided in four positions, which are located near the four corners of the tooling base (1).

5. The heat spreader testing fixture according to claim 4, characterized in that: The tooling base (1) has a mounting groove (7) on its top corresponding to each of the magnets (6), and the magnets (6) are fixed in the mounting groove (7).

6. The heat spreader testing fixture according to claim 2, characterized in that: The groove (5) is provided in four places, which are located on the four side walls of the tooling base (1).

7. The heat spreader testing fixture according to claim 1, characterized in that: The material pit holes (3) are arranged in a matrix; the reference plane holes (4) are arranged in a matrix.

8. The heat spreader testing fixture according to claim 1, characterized in that: The flatness of the upper surface of the tooling base (1) is no greater than 2μm.

9. The heat spreader testing fixture according to claim 7, characterized in that: The material pit holes (3) are arranged in four rows and four columns, and the reference plane holes (4) are arranged in two rows and two columns.

10. The heat spreader testing fixture according to claim 8, characterized in that: Each of the reference plane holes (4) is located at the center position between the four material pit holes (3) near the corner.

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