A feeding and positioning device for a laser tailor welding line

Abstract

The invention relates to the technical field of the laser welding processing and in particular to a feeding and positioning device of a laser splicing and welding line. The feeding and positioning device of the laser splicing and welding line comprises a positioning device body, a positioning base, a positioning sleeve, a pressing block, a positioning base pressing block, a permanent magnet, a sensor, a sensor lower fixing block, a sensor upper fixing block, a bolt, a spring and a jackscrew. A BALLUFU inductive Global-type sensor is selected for replacing an original elastic contact-type sensor, and mechanical collision and contact to the sensor is eliminated, so service life of the sensor is greatly improved. In addition, the spring is used so that the positioning sleeve can be guaranteedto have an elastic function, and to adapt an accident error of a welding joint length of a plate material, so an occurrence rate of misalignment defective products is reduced. Through increasing thenumber of magnets, reliability of a top support of a welding joint is enhanced. Through a design that a magnetic face is lower than a top support face, direct contact and wear of the magnets and the welding joint is avoided, so the magnets do not need to be replaced, and the welding joint does not adsorb chips of the magnets, so a phenomenon that quality of the welding joint is affected because the positioning device collides with the chips is eliminated.

Description

technical field [0001] The invention relates to the technical field of laser welding processing, in particular to a material feeding and positioning device for a laser tailor welding line. Background technique [0002] Since the function of the laser tailor welding line is the process of welding two or more sheets of different materials and shapes into one sheet through the butt weld, the precision control of the condition preparation before welding is particularly critical. The butt joint status of the weld seam is mainly divided into three aspects: height difference, misalignment, and lax butt joint. The welding seam positioning device is closely related, and the design and positioning mechanism of the welding seam positioning device directly affect the butt joint accuracy of the welding seam. [0003] The existing feeding positioning device uses an elastic contact sensor, wherein the Y-axis direction sheet material used for the welding seam positioning mechanism is sent ...

AI Technical Summary

Problems solved by technology

However, in the original design of the equipment, the welding seam rests against the magnet in the form of a single-point contact with protrusions. The protrusions accelerate the wear speed of the magnet, and the position accuracy of the weld seam with single-point contact is easy to lose, which in turn affects the quality of the product.

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