Hot rolled strip steel welding seam quality testing apparatus and hot rolled strip steel welding seam quality testing method

Abstract

The present invention relates to a hot rolled strip steel welding seam quality testing apparatus and a hot rolled strip steel welding seam quality testing method. The hot rolled strip steel welding seam quality testing apparatus comprises a welding seam template clamping member, a die lifting member, a punch adjustment member, a hydraulic system speed adjustment control member, a lifting height control member, and an observation sightglass member, wherein a support plate is fixed on a lower rack, the welding seam template clamping member and the die lifting member are fixed on the bottom support plate, the punch adjustment member and the lifting height control member are directly arranged on the lower rack, the number of the punches is at least two, the punches can be subjected to 90 DEG rotation adjustment, the hydraulic system speed adjustment control member is used for the inlet / outlet pressing plate action, the die lifting action and the punch lifting speed, and the welding seam quality testing observation sightglass member is used for observing the welding seam testing process. With the apparatus and the method of the present invention, the lifting diameter, the lifting speed and the deformation degree can be effectively controlled according to the performance of the welded strip steel so as to improve the quality testing effect and the safety of the high-strength steel welding seam and the trimming welding seam.

Description

Technical field [0001] The invention relates to a strip steel welding seam quality inspection device and an inspection method thereof, in particular to a hot-rolled strip steel welding seam quality inspection device and an inspection method thereof. Background technique [0002] The cold-rolled acid-rolled laser welding machine is mainly used for welding hot-rolled strip steel with a thickness of 2mm-5mm and a hardness of HR30Te between 42-95. After the welding test or re-welding, the hydraulic heading method is used to inspect the quality of the weld. Existing hydraulic pressure top welding seam quality inspection device 1 such as figure 1 Shown: On the metal table 2, the lower bracket 5 with the quality inspection device is installed. There is a hydraulic jack 6 on the bracket. A semi-spherical punch 7 (spherical diameter 20mm) is installed on the head of the jack. The power of the jack is The manual hydraulic pump 3 next to it is provided. Above the punch is a welding seam tem...

AI Technical Summary

Problems solved by technology

The inspection speed of the original hydraulic punching seam quality inspection device is slow, the punching cracks are irregular, and it is impossible to carry out targeted inspections for welds of different widths, and the effect is not ideal. At the same time, the quality inspection of the butt edge welds cannot be carried out; The inspection must use a bending device, but the bending device can only check the bending performance of the weld, and cannot inspect the internal quality of the weld. There is a great lack of weld quality inspection, especially for the quality of high-strength steel welds. Insufficient inspection directly affects the effectiveness of welding adjustment, and has a great impact on the adjustment and optimization of high-strength steel weld quality. Moreover, there are many risk factors in weld inspection, such as hand injury from sampling and eye injury from metal debris. relatively low security

[0003] In short, the original hydraulic pressure punching weld quality inspection device and bending edge welding seam quality inspection device and their inspection methods have the shortcomings of irregular punching cracks, incomplete bending, and slow inspection speed in the inspection of weld quality.

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