Angle-adjustable flexible-installation tensile experiment clamp

Abstract

The invention provides an angle-adjustable flexible-installation tensile experiment clamp, which relates to a tensile experiment machine clamp and mainly comprises an upper clamp module, an angle adjusting module and a lower clamp module. An angle adjusting disc of the angle adjusting module is in threaded connection with an upper clamp center rod, a spring is in threaded connection with the upper clamp center rod, an upper gasket is in threaded connection with the upper clamp center rod, the rotating angle of an upper clamp clamping plate can be accurately read from the angle adjusting disc, and the time needed by angle adjustment is greatly shortened. The clamping plates are provided with grooves which are meshed up and down, so that the friction force of the clamping plates to the plates is increased, and the plates can be effectively prevented from sliding; meanwhile, an arc-shaped groove is formed in the clamping plate, so that the clamp is convenient, flexible, safe and efficient to mount a test piece; and the multi-angle plate tensile experiment requirements can be met, and the clamping force is large.

Description

technical field [0001] The invention provides a tensile test fixture with adjustable angle and flexible installation, and relates to the field of tensile test machine fixtures. Background technique [0002] Tensile test refers to the experimental method of determining the properties of materials under axial tensile load, and is one of the basic methods for testing the mechanical properties of materials. The elastic limit, elongation, elastic modulus, proportional limit, area reduction, tensile strength, yield point, yield strength and other tensile performance indicators of the material can be determined by using the data obtained from the tensile test. Creep data can be obtained from tensile experiments performed at elevated temperatures. The procedure for tensile testing of metals can be found in ASTM E-8 standard. See ASTM D-638 standard, D-2289 standard (high strain rate) and D-882 standard (thin sheet) for the method of plastic tensile test. The ASTM D-2343 standard ...

AI Technical Summary

Problems solved by technology

Patent CN107621405A discloses a multi-functional mechanical tensile test fixture, which can realize the mechanical tensile test of sheet, cylindrical, square column and triangular prism samples on one fixture; It is difficult to effectively and stably clamp the sample and cause shedding, which can also solve the safety problem of the experimental piece during the stretching process

However, this fixture takes a long time to clamp the specimen, and the efficiency is low, and it cannot realize the stretching of the upper and lower specimens at different clamping angles.

Patent CN104614234A discloses a film material tensile test fixture, which can significantly shorten the clamping time and improve the efficiency of the test, but the angle of the test piece cannot be adjusted

Images