Electrical testing clamp

Abstract

The utility model provides an electrical logging clamp, which comprises a bearing platform and a lifting assembly, the bearing platform is provided with a plurality of positioning grooves, vacuum adsorption holes and insertion holes, the adsorption surfaces of the vacuum adsorption holes and the bearing surfaces of the positioning grooves are in the same level, and the lifting assembly is arranged at the lower part of the bearing platform and comprises a lifting platform and a lifting column. The lifting table is fixedly connected with the lifting columns corresponding to the inserting holes, and the lifting columns vertically slide in the inserting holes along with lifting of the lifting table. According to the utility model, the vacuum suction hole is used for adsorbing the tested piece through the electric testing clamp, so that the tested piece is ensured not to deviate; through the design of multiple positioning grooves of the same clamp, the clamp can bear tested pieces with different sizes. Through the design of the lifting assembly, the problem that the tested piece is scratched due to friction with the clamp when being taken and placed is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of touch screen electrical measurement, in particular to the technical field of electrical measurement fixture. Background Art

[0002] In the manufacturing process of touch screens, an electric test machine is required to test the product functions. Different electric test fixtures are required for different sizes of products. This will inevitably affect the utilization rate and production efficiency of the production line when the electric test fixtures are frequently replaced. Secondly, the product will shake when placed in the fixture, causing the position to shift. It cannot be accurately positioned during the electric test, which affects the accuracy and stability of the functional test. After the product function test fails, personnel need to re-judge, which affects production efficiency and yield, and the cost is also high. Thirdly, when the product is tested, it is easy for the product to be scratched due to friction between the product and the bottom of the fixture when the personnel take it out. The scratches on the touch screen will lead to poor appearance and may cause poor display. The existing electric test fixture cannot solve the above three problems at the same time. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide an electrical testing fixture that can meet the needs of electrical testing of tested parts of different sizes without replacing the fixture, ensure that the tested parts will not be offset, and solve the problem of scratches caused by friction between the tested parts and the contact surface of the fixture.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] The utility model provides an electric measuring fixture, comprising a bearing platform and a lifting component, wherein the bearing platform is provided with a plurality of positioning grooves, vacuum adsorption holes and interpenetrating holes, the adsorption surfaces of the vacuum adsorption holes and the bearing surfaces of the positioning grooves are at the same level, the lifting component is arranged at the lower part of the bearing platform, the lifting component comprises a lifting platform and a lifting column, the lifting platform is fixedly connected with the lifting column corresponding to the interpenetrating hole, and the lifting column slides vertically in the interpenetrating hole as the lifting platform is raised and lowered.

[0006] In one embodiment, there is a notch around the edge of the support platform to facilitate the assembly of the entire fixture by the electrical testing device.

[0007] In one embodiment, positioning ear areas are provided on both sides of the positioning groove to facilitate the electrical testing device to position the tested object.

[0008] In one embodiment, there are a plurality of the vacuum adsorption holes and the insertion holes, and one vacuum adsorption hole is arranged between two adjacent insertion holes to improve the adsorption uniformity of the test piece placed in the groove.

[0009] Furthermore, the vacuum adsorption hole is a circular hole, and the through hole is a hollow circular hole that passes through the supporting platform.

[0010] Furthermore, the vacuum adsorption holes and the interlaced hole matrix are arranged in the positioning groove of the support platform, so that the test piece in any positioning groove can be stably taken, placed and tested.

[0011] Furthermore, an annular buffer gasket is provided on the vacuum adsorption hole.

[0012] Furthermore, an elastic pad is provided on the inner side of the insertion hole, and the elastic pad is a rubber pad.

[0013] Furthermore, the vacuum adsorption hole is connected in parallel with an external vacuum pipeline to improve the adsorption effect.

[0014] In one embodiment, the tops of the lifting columns are located in the same plane.

[0015] Furthermore, the lifting column may be a solid or hollow column.

[0016] Furthermore, a protective cover is provided on the top of the lifting column, and the protective cover is made of elastic material to prevent the measured object from being damaged when the lifting column is lifted up.

[0017] Beneficial effects of the utility model:

[0018] 1. Design positioning grooves inside the electrical test fixture and use vacuum suction holes to absorb the tested part to ensure that the tested part will not deviate;

[0019] 2. The same fixture is designed with multiple positioning grooves to carry test pieces of different sizes, so that there is no need to frequently change the fixture due to the different sizes of the test pieces during electrical testing, saving manpower and time, improving production efficiency and reducing costs;

[0020] 3. Through the design of the lifting component, the lifting column lifts the workpiece to be tested when taking the product, thereby solving the problem of scratches caused by friction between the workpiece and the fixture when manually taking the workpiece to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 is a schematic diagram of the fixture;

[0023] Figure 2is a schematic diagram of the load-bearing platform;

[0024] Figure 3 Schematic diagram of the lifting assembly. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0026] See also Figure 1 In one embodiment, the electrical testing fixture includes a bearing platform 10 and a lifting assembly 20. The bearing platform 10 is provided with a plurality of positioning grooves 101, vacuum adsorption holes 102 and insertion holes 103. The adsorption surface of the vacuum adsorption hole 102 is at the same level as the bearing surface of the positioning groove 101. The lifting assembly 20 is arranged at the lower part of the bearing platform 10. The lifting assembly 20 includes a lifting platform 201 and a lifting column 202. The lifting column 202 corresponding to the insertion hole 103 is fixedly connected to the lifting platform 201. The lifting column 202 slides vertically in the insertion hole 103 as the lifting platform 201 is raised and lowered.

[0027] Thus, the working principle of the utility model is as follows: during electrical testing, the positioning groove 101 is used to place the tested parts of different sizes, and the lifting platform 201 slides downward to drive the lifting column 202 downward to eliminate the height difference between the tested part and the positioning groove 101. The tested part is attached to the positioning groove 101 suitable for its size and is fixed by the vacuum adsorption hole 102, thereby reducing the wear and tear that may be caused by manual placement and fixation. After the test is completed, the lifting platform 201 slides upward to drive the lifting column 202 upward, thereby lifting the tested part, so that the tested part forms a height difference with the positioning groove 101, and the tested part is removed away from the positioning groove 101.

[0028] It should be noted that the positioning groove 101 can be a square, circular or special-shaped groove.

[0029] See also Figure 2 In one embodiment, there is a notch 104 around the edge of the support platform 10, which is convenient for assembling the fixture of the electrical measuring device, thereby saving the time of fixture replacement.

[0030] Furthermore, positioning ear areas 105 are provided on both sides of the positioning groove 101 to facilitate further positioning of the device under test, to prevent shaking during the electrical test, and to reduce test damage and test stability.

[0031] Furthermore, there are multiple vacuum adsorption holes 102 and multiple insertion holes 103, and a vacuum adsorption hole 101 is set between two adjacent insertion holes 103, so as to improve the adsorption uniformity of the test piece placed in the positioning groove 101 and ensure that the test piece will not be offset during the test process.

[0032] Preferably, the vacuum adsorption hole 102 is a circular hole, and the insertion hole 103 is a hollow circular hole penetrating the supporting platform.

[0033] Furthermore, the vacuum adsorption holes 102 and the interlaced holes 103 are arranged in a matrix in the positioning groove 101 of the carrier 10, so that the test piece placed in any positioning groove 101 can be stably taken in and tested.

[0034] Furthermore, an annular buffer gasket is provided on the vacuum adsorption hole 102 to buffer the adsorption force on the adsorbed surface of the measured object carried by the positioning groove 101, so as to prevent the measured object from being damaged by the hard groove surface when being adsorbed.

[0035] Furthermore, an elastic pad is provided inside the insertion hole 103, and the elastic pad is a rubber pad to protect the lifting column from wear during the lifting process.

[0036] Furthermore, the vacuum adsorption hole 102 is connected in parallel with the external vacuum pipeline, the pipeline is simple and the adsorption effect is good.

[0037] See also Figure 3 In one embodiment, the tops of the lifting columns 202 are located in the same plane, so that the test piece can be taken and placed stably.

[0038] Furthermore, the lifting column 202 may be a solid column or a hollow column.

[0039] It should be noted that the lifting column 202 can fix the top of the column body to be in the same plane, or a sensor can be used to achieve top leveling through the structural design of the lifting column 202. The lifting column 202 can be a round column or a square column.

[0040] Furthermore, a protective cover is provided on the top of the lifting column 202, and the protective cover is made of elastic material to prevent the measured object from being damaged when the lifting column is lifted up.

[0041] Based on the above, it can be seen that by designing positioning grooves inside the electrical test fixture and using vacuum suction holes to absorb the test piece, it is ensured that the test piece will not be offset; by designing multiple positioning grooves on the same fixture, it can carry test pieces of different sizes, so that there is no need to frequently change the fixture due to the different sizes of the test pieces during electrical testing, thereby improving production efficiency and reducing costs; through the design of the lifting component, the lifting column lifts the test piece when taking the product, thereby solving the problem of scratches caused by friction between the test piece and the fixture when manually taking the test piece.

[0042] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An electrical testing fixture, comprising a bearing platform and a lifting assembly, characterized in that: The bearing platform is provided with a plurality of positioning grooves, vacuum adsorption holes and insertion holes, the adsorption surface of the vacuum adsorption hole is at the same level as the bearing surface of the positioning groove, the lifting assembly is arranged at the lower part of the bearing platform, the lifting assembly comprises a lifting platform and a lifting column, the lifting platform is fixedly connected with the lifting column corresponding to the insertion hole, and the lifting column slides vertically in the insertion hole as the lifting platform is raised and lowered.

2. The electrical measuring fixture according to claim 1, characterized in that: The edges of the supporting platform are each provided with a notch.

3. The electrical testing fixture according to claim 1, characterized in that: Positioning ear areas are provided on both sides of the positioning groove.

4. The electrical testing fixture according to claim 1, characterized in that: There are a plurality of vacuum adsorption holes and a plurality of insertion holes, and one vacuum adsorption hole is arranged between two adjacent insertion holes.

5. The electrical testing fixture according to claim 4, characterized in that: The vacuum adsorption hole is a circular hole, and the insertion hole is a hollow circular hole that passes through the supporting platform.

6. The electrical testing fixture according to claim 4, characterized in that: The vacuum adsorption holes and the interlaced hole matrix are arranged in the positioning groove of the supporting platform.

7. The electrical testing fixture according to claim 6, characterized in that: An annular buffer gasket is arranged on the vacuum adsorption hole.

8. The electrical testing fixture according to claim 7, characterized in that: An elastic pad is arranged inside the insertion hole, and the elastic pad is a rubber pad.

9. The electric measuring fixture according to claim 8, characterized in that :The vacuum adsorption hole is connected in parallel with the external vacuum pipeline.

10. The electrical testing fixture according to claim 9, characterized in that: The tops of the lifting columns are located in the same plane.

11. The electrical testing fixture according to claim 10, characterized in that: The lifting column is a solid or hollow column.

12. The electrical testing fixture according to claim 11, characterized in that: A protective cover is provided on the top of the lifting column, and the protective cover is made of elastic material.

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