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Multiple way fatigue loading clamping device for x-shape spot welding test sample

A technology of fatigue loading and clamping devices, which is applied in the fields of machinery and automobile manufacturing, can solve problems such as no occurrence, and achieve the effects of simple operation, guaranteed neutrality, and small footprint

Inactive Publication Date: 2009-07-29
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 under multi-directional cyclic loading have not yet appeared in China

Method used

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  • Multiple way fatigue loading clamping device for x-shape spot welding test sample
  • Multiple way fatigue loading clamping device for x-shape spot welding test sample
  • Multiple way fatigue loading clamping device for x-shape spot welding test sample

Examples

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Effect test

Embodiment Construction

[0023] Combine below Figure 1 to Figure 6 Specific examples of the present invention will be described.

[0024] The device is mainly composed of upper and lower independent parts with similar structures, and the X-shaped spot welding sample is clamped between the two clamps. The present invention mainly includes the upper clamping body 10 and the lower clamping body 11 with similar structures, such as figure 1 shown. Wherein, the upper clamp body 10 mainly includes a base 1, a trapezoidal block 5, a wedge-shaped clamping block 2, and a lock plate 7, such as image 3 Said, the lower surface of the base 1 is provided with a symmetrical groove relative to the center line of the lower surface, the trapezoidal block 5 and the wedge-shaped clamping block 2 are arranged in the groove, the centerline of the trapezoidal block 5 and the center line of the base 1 The center line of the upper surface coincides, and the side of the base 1 is provided with a threaded transmission screw...

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Abstract

The present invention is a type of X -shaped welding sample multi -directional fatigue loading device, which belongs to the field of machinery and automobile manufacturing.Including specific clips (10), lower clamps (11).Specific (10) base (1) on the upper surface (1) on the surface is set with a trapezoidal block (5) that can slide along the heart line, and a wedge -shaped clamp block on both sides of the trapezoidal block (2)(5) Pushing the decline.The wedge -shaped clamping block (2) The groove of a parallel quarter is formed between the other side of the base and the base 1 to place the welding sample.The above -mentioned structure of the specific 11 of the lower clamp is the same as the specific 10 of the top 10. The upper surface of the specific 10 of the upper clamp is set with lock plate 7, and the lower surface of the lower clamp is set on the lower surface of the lower clamp., Locking (7) is fixed on the slide rail 9.There are load holes on the lock 7.The present invention enables X -shaped welding samples to withstand the cutting circulation load in different directions so that the sample is kept correct in the specific clip.

Description

technical field [0001] The invention relates to an X-shaped spot welding sample multi-directional fatigue loading clamping device, which is used for positioning and clamping spot welding fatigue samples in an X-shaped tensile-shear multi-directional fatigue loading test, belonging to machinery, automobiles field of manufacturing technology. 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 automobile industry. As modern automobiles increasingly adopt thinner high-strength steel plates in the direction of high strength and reliability, light weight, and fuel saving, the stiffness of spot welded joints decreases due to the thinning of the plates, making them fatigue Reduced strength. Therefore, technicians should regard the fatigue performance of solder joints as an important parameter of automobile ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/04
Inventor 尚德广李力森王瑞杰孙国芹贾冠华邓静
Owner BEIJING UNIV OF TECH
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