Spot welding test plate tearing test device and test method thereof

Abstract

The invention discloses a spot welding test plate tearing test device. The spot welding test plate tearing test device comprises a frame mechanism, a tearing action mechanism and a connecting mechanism; the tearing action mechanism comprises a rotary plate and a handle arranged on the rotary plate; the rotary plate is arranged on the frame mechanism through a rotary plate fixing shaft; the connecting mechanism comprises a fixed hinge and a movable hinge which are used for connecting with the two ends of a welding test plate; the fixed hinge is connected with the frame mechanism; and the movable hinge is connected with the rotary plate. A test method comprises the following steps: after test plate welding is completed, an operator separates the open hole ends of two test plate into an angle to connect the outer ends of the test plates with the movable hinge and the fixed hinge correspondingly; the handle is pulled, the welding test plates rotate along with the rotary plate, the opening is enlarged gradually and tearing starts; and when the welding test plates are pulled to the maximal angle, the welding spot or the test plates are torn. The test is simple and convenient to operate, safe and efficient, the welding spot binding force of the two test plates can be roughly quantized, and comparison is facilitated; and the structure is simple and the cost is low.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a spot welding test plate tear test device and a test method thereof. Background technique [0002] The pressure spot welding welding process commonly used in automobile body welding puts forward extremely high requirements for welding strength. The test plate tear test is a commonly used spot welding strength inspection method at present. Most of the traditional test methods are artificial torsional tearing, Or vise clamps are twisted and torn. This method is not only inefficient, but also has a single function. It cannot quantify the strength of solder joints, and there is a risk of injury to the operator. Contents of the invention [0003] Aiming at the deficiencies of the existing technology, the technical problem to be solved by the present invention is to provide a spot welding test plate tearing test device and its test method, so as to achieve the purpose of simple, sa...

AI Technical Summary

Problems solved by technology

[0002] The pressure spot welding welding process commonly used in automobile body welding puts forward extremely high requirements for welding strength. The test plate tear test is a commonly used spot welding strength inspection method at present. Most of the traditional test methods are artificial torsional tearing, Or vise clamp torsion tearing, this method is not only inefficient, but also has a single function, cannot quantify the strength of solder joints, and there is a risk of injury to the operator

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