A handheld laser welding device with an auxiliary positioning track

Abstract

The invention provides a hand-held laser welding device with an auxiliary positioning track, which includes a laser welding head, an auxiliary positioning track and a supporting walking mechanism; the supporting walking mechanism includes a walking bracket, two universal rollers, a hand-held part and a welding Head lifting assembly, two universal rollers are respectively installed at the bottom of the two outriggers of the walking bracket, and the hand-held part is fixedly installed on the upper end or side of the walking bracket; the auxiliary positioning rails are two, and they are arranged parallel to each other, which are used for hand-held The welding process provides a positioning track, and the universal rollers supporting the traveling mechanism can roll on two auxiliary positioning tracks. The invention arranges the auxiliary positioning track in advance according to the welding seam track of the workpiece, can realize precise welding track control, supports repeated positioning adjustment or multi-pass surfacing welding, and can greatly reduce the operation difficulty of the welding operator on the welding moving track , It completely solves the problem of hand-held laser welding without ready-made positioning mechanism such as plate butt welding and lap welding.

Description

technical field [0001] The invention belongs to the field of laser welding, in particular to a hand-held laser welding device with an auxiliary positioning track. Background technique [0002] The principle of handheld laser welding is to couple the high-energy laser beam into the optical fiber, collimate it into parallel light through a collimating mirror, and then focus on a laser welding machine equipment for welding on the workpiece. The handheld laser welding equipment connects the laser welding head and the laser through an optical fiber, realizing the long-distance transmission of the laser, and implementing flexible transmission and non-contact welding for parts that are difficult to access for welding. The traditional laser welding machine is to put the product into the fixture to realize automatic welding, but the handheld laser welding machine only needs to put the product on the flat ground to realize welding. Due to the use of hand-held laser welding head for w...

AI Technical Summary

Problems solved by technology

[0003] However, the current hand-held laser welding equipment is very dependent on the manual operation level of the welder, which brings the following two important shortcomings: (1) The welding speed depends on the manual movement by experience. On the one hand, it requires a high level of operation. On the one hand, there is no real-time speed value feedback and precise control is impossible; (2) For welding structures that are not fillet welds (such as butt welding, etc.), there is no ready-made positioning constraint mechanism on the welding path, and it is difficult to ensure the accuracy of welding trajectory by manual movement alone , because the laser spot is very small, which makes the current hand-held laser welding basically impossible to apply in the occasions where there is no ready-made positioning mechanism such as plate butt welding and lap welding.

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