Detection fixture for tensile testing of steel wires

Abstract

The invention discloses a detection fixture for tensile testing of steel wires, wherein the detection fixture comprises a main body part, a fixed block, and a limiting stopper, wherein the fixed block and the limiting stopper are fixed and oppositely arranged on the main body part; an actuating space is formed between the fixed block and the limiting stopper; a clamping head is arranged in the actuating space; a gripping surface is arranged on one side of the clamping head, facing to the fixed block; the gripping surface is corrugate; a screw hole is formed in the limiting stopper; a threaded rod is rotationally arranged in the screw hole; one end of the threaded rod is fixed with the clamping head, and an adjusting handle is fixed at the other end of the threaded rod. According to the detection fixture for tensile testing of the steel wires, a transitional tensile design is adopted, so that the phenomenon that broken ends of steel wires of fine sizes in the tensile testing are positioned in the fixture is avoided to not give rise to invalid testing results; besides, the clamping head adopts toothed and wear-resisting stainless steel design, so that the steel wire is prevented from slipping when clamped by the fixture in the process of tensile testing.

Description

technical field [0001] The invention relates to the technical field of bead wire detection equipment, in particular to a tensile test detection fixture. Background technique [0002] The bead wire needs to go through four major processes in the preparation process: rough drawing, heat treatment, middle wire drawing and tempering copper plating. After each process, it is necessary to perform a tensile test on the bead wire to detect technical indicators such as the maximum load-bearing tensile force and elongation deformation of the bead wire. However, in the traditional tensile test, it is necessary to manually operate the clamp to clamp the bead wire. This method is prone to slippage with the clamp during the detection of the bead wire, resulting in inaccurate detection data. Contents of the invention [0003] The purpose of the present invention is to overcome the above disadvantages and provide a testing fixture device for a tensile machine, the steel wire is not easy ...

AI Technical Summary

Problems solved by technology

However, in the traditional tensile test, it is necessary to manually operate the clamp to clamp the bead wire. This method is prone to slippage with the clamp during the detection of the bead wire, resulting in inaccurate detection data.

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