Shearing test fixture

Abstract

The invention belongs to the technical field of mechanical property tests of materials and discloses a shearing test fixture. The shearing test fixture comprises a fixed connection platform used for being fixed on a testing machine, wherein the fixed connection platform is connected with a fixture base through a fixture position adjusting bolt; the fixture base is connected with a sample chuck through a fixture vertical adjusting bolt; the sample chuck is equipped with sample thickness adjusting bolts and sample compression fine-adjusting bolts; the sample thickness adjusting bolts are used for adjusting thickness of a shearing sample and locking the shearing sample, the sample compression fine-adjusting bolts are used for finely adjusting the thickness of the shearing sample and locking the shearing sample, and shear stress is applied to the shearing sample by an integrated shearing press cutter mounted on an output shaft of the testing machine. The shearing test fixture is of an adjustable structure, so that position, size and thickness of the sample clamped by the fixture can be adjusted, and testing range is extended; by means of bolt locking connection, the shearing test fixture is simple to operate and high in stability and is not prone to loosening, and a new thought about adjustability, fastening performance and reliability of the shearing fixture is proposed.

Description

technical field [0001] The invention belongs to the technical field of material mechanical performance testing, and in particular relates to a fixture capable of realizing a shear test. Background technique [0002] Shear test can determine the resistance performance of materials under shear force, and is one of the basic test methods of material mechanical performance test, mainly used to test parts and materials subjected to shear load. The shear test fixture is the most basic and important part of the shear test. [0003] At present, during the test process, as the shear force of the test continues to increase, the force on the fixture is also increasing, resulting in many problems; 1. The position of the fixture itself cannot be adjusted, 2. The fixture cannot be adjusted according to the size of the sample The range of clamping will cause the sample to loosen during the test and cause errors in the test data. Contents of the invention [0004] What the present inven...

AI Technical Summary

Problems solved by technology

[0004] What the present invention aims to solve is the technical problem that the current shear test fixture cannot adjust the position and clamping range, and provides a new type of shear test fixture, which can adjust the clamping section, shear position and shear thickness according to the size of the sample. Adjustment, improve the test loading force, stability and reliability, and ensure that the sample will not relax during the test

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