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Gripper for tension test

A tensile test and gripper technology, used in instruments, scientific instruments, measuring devices, etc., can solve the problem of difficulty in clamping the sample, and achieve the effect of improving the clamping force

Inactive Publication Date: 2012-07-25
XIAN MODERN CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the gripper is used for tensile performance test under low temperature environment, the slipping between the gripper and the sample is avoided, and the problem that the sample is difficult to hold is solved.

Method used

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  • Gripper for tension test

Examples

Experimental program
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Effect test

Embodiment Construction

[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0017] Refer to attached figure 1 , In the material tensile performance test, the shape of the sample is the standard dumbbell shape specified in GB / T528. The dumbbell-shaped standard specimen consists of two ends K, four outer transition edges E and a narrow parallel portion C.

[0018] Refer to attached figure 2 , 3 Implement the invention. The clamping end of the clamp used in the tensile test can be processed into a stepped cylinder, and the end with a smaller diameter is a cylinder with a through hole 7 at the end, and the other end with a larger diameter is machined into a plane 2 with a milling machine. The cross section is semicircular; the mounting bracket 3 is fixed on the plane, and the spring automatic locking eccentric wheel 6 is installed through the bracket 3 . The spring automatic locking type eccentric wheel 6 can be processed by using ...

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Abstract

The invention discloses a gripper for a tension test, aiming at solving the problem that a gripper is easy to slip and hard to grip a test sample while measuring the tension performance of a material in a low-temperature environment. The gripper disclosed by the invention comprises two completely same gripping ends which are oppositely separated, wherein the gripping ends are stepped cylinders, the end part of one of the gripping ends which is connected with a tensile testing machine is provided with a through hole, and the end part of the other end is provided with a plane in the radial direction; the cross sections of the gripping ends are semicircular; a spring self-locked type eccentric wheel is disposed on the plane, and the spring self-locked type eccentric wheel is fixedly installed on the plane via a support; and a pair of arc plates is further fixedly disposed on the plane. The gripper for the tension test disclosed by the invention is mainly used for testing the tension performances of a high polymer material and a composite material.

Description

technical field [0001] The invention relates to a clamper for tensile test, more specifically, the invention relates to a clamper for tensile test used for testing the tensile stress-strain performance of non-metallic materials. Background technique [0002] With the wide application of various non-metallic materials in aviation, aerospace, weapons, transportation and other fields, the testing and research of stress-strain performance as the basic performance of materials is extremely important. One of the experimental techniques. The entire mechanical performance test of the material is carried out on an electronic tensile testing machine equipped with an incubator, and the data is connected to a computer to control and collect data through high-precision and high-sensitivity sensors. The gripper for tensile test is one of the key components for measuring the tensile mechanical properties of materials. During the test, the two ends of the sample are respectively fixed on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/04
Inventor 李冬陈竚曹继平任黎段伯祯马亚楠曹磊马燕王一颖李旸李红梅
Owner XIAN MODERN CHEM RES INST
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