Cross point welding sample multidirectional fatigue loading fixture

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...

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