Micro-torsion testing platform

Abstract

The invention discloses a micro-torsion testing platform which is aimed at overcoming the problems of low testing precision and small test object range of a current torsion testing machine in a mechanical property test of torsion under a micro-torsion / deformation service condition. The micro-torsion testing platform comprises a precise adjusting unit, a precise electric control turn table, a torque / angular displacement signal detecting unit and a clamping unit, wherein the precise adjusting unit comprises a base, a movable cross beam, an adjusting screw, a left upright post, a right upright post, a top beam and an XY two-dimensional precise displacement platform; the precise electric control turn table is installed on a table top of the XY two-dimensional precise displacement platform; the torque / angular displacement signal detecting unit comprises a micro-torque sensor and a high-precision circular grating, the micro-torque sensor is installed on the bottom surface of the movable cross beam, and the high-precision circular grating is installed on a loading platform of the precise electric control turn table; and the clamping unit comprises a fixed clamp holder and a movable clamp holder, the fixed clamp holder is installed on the bottom end face of the micro-torque sensor, and the movable clamp holder is installed on the table top of the precise electric control turn table.

Description

technical field [0001] The invention relates to a material mechanics testing machine, more precisely, the invention relates to a micro-torsion testing platform. Background technique [0002] Material mechanics test is an important means to test material performance, and torsion test is one of the important contents of material mechanics test. At present, the torsional mechanical performance test of materials is generally carried out by material torsion testing machine. Depending on the matching torque sensor, the torque range of this type of testing machine ranges from 1N·m to 1000N·m, which can only meet the needs of the engineering community for torsion testing of samples under heavy load conditions. With the continuous development of science and technology and industrial level, there are higher requirements for the testing accuracy of the mechanical properties of materials. At present, most of the commonly used torsion testing machines measure the mechanical properties o...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the problems of low test accuracy and small range of test objects in the torsion mechanical performance test of existing torsion testing machines under micro-torque / deformation service conditions, and provide a method for micro-torque / deformation service conditions. It is a micro-torsion test platform for torsion performance test of mechanical structure or micro-sized structure and torsion fatigue test under certain torsion conditions. This test platform can be applied to biomedical materials, hard and brittle materials, etc.

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