CN201188078Y

CN201188078Y - Special fixture for tensile test of high intensity steels

Info

Publication number: CN201188078Y
Application number: CNU2008200768660U
Authority: CN
Inventors: 邵丽慧
Original assignee: Shanxi Taigang Stainless Steel Co Ltd
Current assignee: Shanxi Taigang Stainless Steel Co Ltd
Priority date: 2008-04-14
Filing date: 2008-04-14
Publication date: 2009-01-28
Anticipated expiration: 2018-04-14

Abstract

The utility model relates to a special fixture for a tension test of high-strength steel products, which is mainly used for the mechanical property test. The special fixture comprises a cross beam, and is characterized in that the cross beam is connected with a middle arm, the middle arm adopts an integral structure with a clamping arm, and holes are arranged on the clamping arm. When the special fixture is used, the cross beam of the special fixture is hung in a slit in which fixtures of a testing machine are moved, the clamping arm is clamped between the fixtures of the testing machine or hung on a fixture with a flange, a test piece is inserted into the fixture and is connected with the special fixture through a pin. The special fixture has the advantages that the operation is simple and convenient, the performance is stable, the tension test not only can be carried out for high-strength steel products with thickness being smaller than 10 mm, but also can be carried out for the high-strength steel products with thickness being larger than or equal to 10 mm, and compared with the prior plate fixture, the error of the test data is less.

Description

A kind of high strength steel tension test unit clamp

Technical field:

The utility model is specifically related to a kind of high strength steel tension test unit clamp, is mainly used in the mechanical properties test of metal material.

Background technology:

The plate jig of doing high strength steel tension test use at present has two kinds, a kind of is the anchor clamps that are used for thickness is done less than 10 millimeters high strength steel tension test, another kind is the anchor clamps that are used for thickness is done more than or equal to 10 millimeters high strength steel tension test, before a kind of anchor clamps stretch stressed power value when big, because stress is concentrated, anchor clamps can be out of shape even burst apart, and can not do tension test more than or equal to 10 millimeters high strength steel for thickness; A kind of anchor clamps in back, often skid between anchor clamps and sample in the tension test process because the intensity of high strength steel is very high, and the error of test figure is bigger.

Summary of the invention:

The utility model aims to provide and can do tension test to any high strength steel, and the less a kind of high strength steel tension test unit clamp of the error of test figure.

The realization the technical solution of the utility model is: comprise crossbeam, and arm during crossbeam connects, middle arm and jig arm are one, and the hole is set on the jig arm, and the diameter in hole is 20 millimeters, and pin is set in the hole, and cotter diameter is 19.5 millimeters.

Described crossbeam be length be 100 millimeters, wide be 60 millimeters, thick be 50 millimeters rectangle steel part;

In described arm be length be 140 millimeters, wide be 60 millimeters, thick be 20 millimeters rectangle steel part;

Described jig arm 4 be length be 100 millimeters, wide be 60 millimeters, thick be 52 millimeters be " U " shape steel part.

During use crossbeam of the present utility model hung in the slit that grip of testing machine moves, jig arm is clipped between grip of testing machine or hangs on the anchor clamps that have flange, and sample is inserted in the anchor clamps, with pin sample and the utility model is coupled together to get final product.Through the test on 100 tons of cupping machines, the utility model is easy to use, stable performance, can not only do tension test less than 10 millimeters high strength steel to thickness, and can do tension test more than or equal to 10 millimeters high strength steel for thickness, the error of comparing test figure with existing plate jig is less.

Description of drawings:

Fig. 1 is the front view of the utility model embodiment.

Fig. 2 is the left view of Fig. 1.

Fig. 3 is the upward view of Fig. 1.

Fig. 4 is the vertical view of Fig. 1.

Among the figure, 1, crossbeam 2, middle arm 3, hole 4, jig arm

Embodiment:

Embodiment: Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, arm 2 during the crossbeam 1 of present embodiment connects, middle arm 2 is an one with jig arm 4, and hole 3 is set on the jig arm 4, and the diameter in hole 3 is 20 millimeters, and the pin (not shown) is set in the hole 3, and cotter diameter is 19.5 millimeters.

Described crossbeam 1 be length be 100 millimeters, wide be 60 millimeters, thick be 50 millimeters rectangle steel part;

In described arm 2 be length be 140 millimeters, wide be 60 millimeters, thick be 20 millimeters rectangle steel part;

Present embodiment is selected 40Cr for use, through 850 ℃ of oil quenchings, the thermal treatment of 520 ℃ of tempering.

Claims

1, a kind of high strength steel tension test unit clamp comprises crossbeam, it is characterized in that arm in the crossbeam connection, and middle arm and jig arm are one, and the hole is set on the jig arm.

2, a kind of high strength steel tension test unit clamp according to claim 1, it is characterized in that described crossbeam be length be 100 millimeters, wide be 60 millimeters, thick be 50 millimeters rectangle steel part.

3, a kind of high strength steel tension test unit clamp according to claim 1, it is characterized in that described in arm be length be 140 millimeters, wide be 60 millimeters, thick be 20 millimeters rectangle steel part.

4, a kind of high strength steel tension test unit clamp according to claim 1, it is characterized in that described jig arm 4 be length be 100 millimeters, wide be 60 millimeters, thick be 52 millimeters be " U " shape steel part.