Tensile clamp for tensile property test of non-metal materials

Abstract

The invention discloses a tensile clamp for a tensile property test of non-metal materials, and belongs to the technical field of tests on material performances. The tensile clamp has the structure that an upper holding rod is positioned at the upper part of an upper limiting block, and the upper holding rod is fixedly connected with the upper limiting block; the upper holding rod is connected with an upper connecting plate through a universal joint; the middle of the universal joint is connected with the upper limiting block and the lower end of the universal joint respectively through pins; the lower end of the universal joint and the upper connecting plate are fixedly connected together; the upper connecting plate and a splicing plate are fixedly connected together through bolts; an upper splicing face is a face of the upper splicing plate; a lower holding rod is positioned at the lower part of a lower limiting block, and the lower holding rod and the lower limiting block are fixedly connected together; the lower limiting block and a lower connecting plate are fixedly connected together; the lower connecting plate and a lower splicing plate are fixedly connected together through bolts; a lower splicing face is a face of the lower splicing plate; and scales for positioning test samples are carved on the lower splicing face. The tensile clamp has high precision, is safe to use, and can carry out test on the tensile strength of test samples with large sections.

Description

technical field [0001] The invention belongs to the technical field of material performance testing, and in particular relates to a tensile fixture for testing the tensile performance of non-metallic materials. Background technique [0002] Mechanical Testing & Simulation MTS is a well-known manufacturer of material testing machines, especially dynamic material testing machines. The Model 647 wedge grips for MTS testing machines, such as figure 1 As shown, after replacing different types of wedges, the plane or V-groove provided by the wedges can be used to clamp sheet or cylindrical samples of different sizes. However, the thickness or diameter of the sample clamped at this time is relatively small. For example, after the 647-type wedge grip is equipped with different wedges, the maximum clamping thickness is 25.9mm, and the maximum clamping diameter is 26.2mm, of which 647.25 The maximum clamping diameter of the type wedge is 19.8mm. Therefore, if the tensile test of a ...

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Problems solved by technology

[0004] No relevant literature on the tensile fixture matching the MTS company's 647.25 wedge was retrieved

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