Cross point welding sample multidirectional fatigue loading fixture

A fatigue loading and fixture device technology, applied in the fields of machinery and automobile manufacturing, can solve problems such as no occurrence, and achieve the effects of easy operation, ensuring neutrality, and ensuring the degree of clamping.

Inactive Publication Date: 2007-03-07
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The necessary fixtures for fatigue testing of spot welded joints un

Method used

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  • Cross point welding sample multidirectional fatigue loading fixture
  • Cross point welding sample multidirectional fatigue loading fixture
  • Cross point welding sample multidirectional fatigue loading fixture

Examples

Experimental program
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Embodiment Construction

[0021] Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 5.

[0022] This embodiment mainly includes an upper clamping body 8 and a lower clamping body 9, and the upper clamping body 8 and the lower clamping body 9 are two independent similar structures. Among them, the lower clamp body 9 mainly includes a base 1, a trapezoidal block 5, a wedge-shaped clamping block 2, a lock disc 7. An "H"-shaped groove is provided on the upper surface of the base 1, and the groove is opposite to the upper surface. The surface center lines are symmetrical, the trapezoidal block 5 and the wedge-shaped clamping block 2 are arranged in the groove, the center line of the trapezoidal block 5 coincides with the center line of the upper surface of the base 1, and the bottom surface of the trapezoidal block 5 is provided with a dovetail groove. A threaded transmission screw 4 is arranged on the side surface of the base 1 along the axis direction of...

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Abstract

This invention provides one crossing weld specimen multi-fatigue loading clamper device in the mechanic, auto process technique filed, which comprises the following parts: down clamper part 9 and upper clamper 8, wherein, the clamper 9 and the basic socket upper surface is set with gradient block sliding along the surface; the gradient block both sides are set with wedge clamping block sliding along the slope of the gradient block; the other surface of the wedge clamping block to take weld specimen; the down clamper 9 above part is similar to the upper clamper 8 and their difference lies in the following: the down clamper 9 lock panel 7 is located on the basic socket down surface and the upper clamper 8 lock panel 7 is located on the upper surface with loading holes.

Description

Technical field [0001] The invention relates to a cross-shaped spot welding sample multi-directional fatigue loading fixture device, which is used for positioning and clamping the spot welding fatigue sample in a cross-shaped tensile-shear multi-directional fatigue loading test, belonging to machinery and automobile manufacturing technology field. technical background [0002] Resistance spot welding has the advantages of low cost, high efficiency, and simple operation. It is very suitable for mass production and has been widely used in modern industry, especially in the automotive industry. As modern cars are increasingly moving towards high strength and reliability, light weight, and fuel saving, and more and more use of thinner high-strength steel plates, the rigidity of spot welded joints decreases due to the thinning of the plates, causing them to fatigue The intensity is weakened. Therefore, technicians should regard the fatigue performance of the solder joint as an importa...

Claims

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Application Information

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IPC IPC(8): G01N3/04
Inventor 尚德广李立森王瑞杰孙国芹贾冠华邓静
Owner BEIJING UNIV OF TECH
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