Control method, device and system for handheld laser welding equipment

Abstract

The invention discloses a control method, device and system for handheld laser welding equipment. The control method comprises the steps that set parameters input by a user and state parameters of a laser welding gun are obtained; a laser power supply is controlled to output a laser to a galvanometer motor according to the set parameters, a sinusoidal waveform is generated according to the set parameters, and the galvanometer motor is controlled to reflect the laser to the laser welding gun according to the sinusoidal waveform; and a change power value required for adjusting the laser power supply is determined according to the state parameters, the laser power supply is controlled to adjust the power of output laser according to the change power value, then the adjusted laser is transmitted to the galvanometer motor, and the adjusted laser is reflected by the galvanometer motor. According to the control method, device and system, linear energy output can be formed slowly, so that linear energy distribution of the laser is more uniform, and the stability of laser output is enhanced; and meanwhile, feedback control of laser energy can be achieved, and the laser output precision is improved.

Description

Technical field [0001] The present invention relates to the field of laser welding technology, and more particularly to a control method, apparatus, and system of a hand-held laser welding apparatus. Background technique [0002] With the development of semiconductor lasers, larger power hand-held laser welding equipment has developed rapidly, making the manufacturer of hand-held laser devices, and hand-held laser welding equipment in market applications are increasing. [0003] Although there are many manufacturers, many manufacturers have not mature, and the equipment is large; and in order to increase market share, many manufacturers will continue to compress prices, to attract customers to purchase, but compress the price to make the manufacturer's part quality is poor Further lead to more equipment problems in the welding equipment. [0004] The current common problem is as follows. Since the hand-held laser welding equipment uses a board control, the card control performanc...

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Problems solved by technology

[0003] Although there are many manufacturers, many of them are immature in technology and have serious equipment problems; and in order to increase market share, many manufacturers will continue to reduce prices to attract customers to buy, but after reducing prices, the quality of components used by manufacturers is poor. , which further leads to more equipment problems in welding equipment

[0004] The current common problems are as follows, because the hand-held laser welding equipment will be controlled by the board, the control performance of the board is poor, and the control frequency is low (generally below 100Hz), so that the vibrating mirror motor can only output the laser with a triangular waveform, while the triangular waveform The damage of the laser to the galvanometer motor is large and the uniformity of the linear output energy distribution is poor. Not only is it not suitable for scenarios with high energy requirements and high-frequency output control, but also the welding quality is poor; and because the equipment is used by the user, and every The operation level of individuals varies, and welding instability will occur after working for a long time, further reducing the welding quality

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