Clamping device for contact resistance testing based on pressure adjustment of clamping area and quantity

Abstract

The invention discloses a contact resistance test clamping device based on a pressure adjustment clamping area and a number. The device comprises a box body, a first screw transmission mechanism, a first clamping arm, a second screw transmission mechanism, a second clamping arm, a third screw transmission mechanism, a third clamping arm, a fourth screw transmission mechanism, a sample groove body,a top cover and a bottom cover. The first screw transmission mechanism and the second screw transmission mechanism are connected to the first clamping arm and the second clamping arm respectively. The third screw transmission mechanism is connected to the third clamping arm. The second clamping arm is provided with a movable plate and the fourth screw transmission mechanism. The top surface of the box body is provided with a groove body port used for installing the sample groove body. The side wall of the box body is provided with an insertion sheet and a plurality of insertion sheet holes cooperated with the insertion sheet. Through the insertion sheet and the insertion sheet holes, the height of the sample groove body is positioned. In the invention, metal samples with different areas and different sheet numbers can be clamped so as to carry out contact resistance testing. A clamp does not need to be replaced frequently, a repetition utilization rate is high, the structure is simple, an application prospect is wide and the device is easy to popularize.

Description

Technical field [0001] The invention belongs to the technical field of superconductivity, and in particular relates to a contact resistance testing and clamping device based on pressure adjustment of clamping area and quantity. Background technique [0002] Contact resistance is the resistance between conductors. In the process of contact resistance testing, a contact resistance clamping device is often used. The clamping device is mainly used to realize the connection between the test electrode and the press. [0003] The existing contact resistance clamping device can only clamp metal samples with a fixed area and a fixed number of pieces. However, when measuring metal samples with different areas and different numbers, it cannot be realized by a single fixture. Frequent replacement of fixtures in terms of area and quantity, on the one hand, makes the reproducibility of the contact resistance fixtures low, on the other hand, it also increases the cost of making fixtures. Summary...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a clamping device for contact resistance testing based on pressure-adjustable clamping area and quantity, aiming to solve the problem that the existing contact resistance clamping device in the above background technology can only clamp a fixed area and a fixed number of pieces For metal samples, when measuring metal samples of different areas and different quantities, it cannot be realized by a single fixture, and the fixture needs to be replaced frequently according to the area and quantity of the sample to be tested, and the reusability of the contact resistance fixture is low. , and increase the cost of making fixtures

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