Stud welding intensity detection apparatus and method

A technology of strength testing and stud welding, which is applied in the direction of measuring devices, using mechanical devices, and using stable torsion to test the strength of materials, can solve the problems of qualified product damage, loss, company waste, etc., to reduce unnecessary waste, Ease of use and simple installation

Active Publication Date: 2009-02-18
CHERY AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] 1. The visual inspection method is unreliable;
[0007] 2. The bending angle of the destructive detection method cannot be measured accur

Method used

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  • Stud welding intensity detection apparatus and method
  • Stud welding intensity detection apparatus and method
  • Stud welding intensity detection apparatus and method

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Embodiment Construction

[0046] The present invention will be described in detail below according to the accompanying drawings, which is a preferred embodiment among various implementations of the present invention.

[0047] The scheme of the whole set of devices is explained in conjunction with the accompanying drawings:

[0048] Screw stud welding welding strength testing device, such as figure 2 As shown, the screws 4 are welded on the workpiece 1, and a welding fusion zone 2 is formed between them. This set of devices uses a fixed value torque wrench to insert into the square hole of the auxiliary sleeve 3 to detect the welding strength. The gap between the screw and the sleeve is required to be controlled at 0.1~0.2mm. Set the torque of the fixed-value torque wrench to a certain value (see the table for the specific value), and the operator twists the wrench. If the wrench can hear the sound of "click, tower" and suddenly slips, it means that the set value is less than For the actual stud weld...

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Abstract

The invention relates to a stud welding intensity detection device and a stud welding intensity detection method of the detection device; the stud welding intensity detection device comprises an auxiliary sleeve device and a set-value torque wrench; the auxiliary sleeve device is used to sleeve screws or similar components; the set-value torque wrench is connected with the auxiliary sleeve device and provided with a torque set value based on the working condition; the operator twists the wrench and determines the stud welding intensity based on the phenomenon; the invention is improved based on the existing conditions and invents a non-destructive stud welding strength detection device which is simple and easy to use and can reduce unnecessary waste caused by quality testing.

Description

technical field [0001] The invention relates to a stud welding strength detection device, and also relates to a stud welding strength detection method using the detection device. Background technique [0002] At present, in the welding process of automobile manufacturing enterprises, stud welding is a commonly used process method. Its application is also expanding, and its welding quality will directly affect the assembly quality of the final assembly. On the one hand, if the welding position deviates, it will make it difficult to install the assembly, and even if it is installed, additional stress will be generated. After the product has been used by the user for a period of time, the stress will be released after the bolt is loosened or the assembly is deformed. series of questions. On the other hand, if the strength of the stud welding is not enough, it is likely to cause the screw to break off during the assembly process, which will cause a lot of rework problems. The...

Claims

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Application Information

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IPC IPC(8): G01N3/22G01N19/04
Inventor 刘道东曹阳天
Owner CHERY AUTOMOBILE CO LTD
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