Tensile testing clamp for bolts

Abstract

The invention discloses a tensile testing clamp for bolts. The tensile testing clamp comprises a lower fixing base, an upper fixing base, a lower mold plate and an upper mold plate, wherein the lower mold plate and the lower fixing base are detachably connected; the upper mold plate and the upper fixing base are detachably connected; threaded holes of many different models are formed in the lower mold plate; threaded holes in the lower mold plate are uniformly distributed in one circumference; grooves of many different of models are formed in the bottom of the upper mold plate; the grooves are uniformly distributed in one same circumference; the diameter of the circumference with the grooves is identical to that of the circumference with the threaded holes in the lower mold; the grooves in the upper mold plate correspond to the threaded holes in the lower mold plate. By adopting the tensile testing clamp, the defects of a conventional bolt detection device for detecting the tensile strength of bolts that the operation is tedious and the efficiency is low as a screw nut corresponding to a bolt to be detected needs to be mounted on the lower fixing base each time when a bolt of one model is detected are overcome.

Description

technical field [0001] The invention relates to the field of bolt detection devices, in particular to a bolt tensile test fixture. Background technique [0002] Standard screws and bolts are widely used in all walks of life due to their advantages of simple structure, high quality and low price. However, if a large number of standard screws and bolts are used, it is necessary to conduct sampling tests on their tensile strength. However, most factories and enterprises do not have standard screws. 1. Bolts do not have special testing equipment, so they cannot be tested, resulting in the failure of threaded connections because the tensile strength of standard screws and bolts does not meet the standard requirements, and may cause safety accidents in severe cases. Especially for die-casting factories, the equipment used is large-scale equipment, and the failure of any bolt or nut may bring huge losses to the enterprise. However, the corresponding bolt tensile fixture is usually...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that when the existing bolt detection device detects the tensile strength of the bolt, it is necessary to install a nut corresponding to the bolt to be detected on the lower fixing seat for each type of bolt to be detected, and the existing operation is cumbersome. For the defect of low efficiency, a bolt tensile test fixture is provided, which has the characteristics of simple operation and high efficiency

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