Vibrating-mirror constant-temperature work system and control method thereof

Abstract

The invention relates to the technical field of laser processing, and discloses a vibrating-mirror constant-temperature work system and a control method thereof. The system comprises an internal-circulation subsystem, a radiator, a radiator control unit and an external-circulation subsystem, wherein the internal-circulation subsystem is used to bring out the heat of a vibrating mirror; the radiator control unit is used to control the radiator to start working and allow the radiator to transfer the heat in the internal-circulation subsystem into the external-circulation subsystem when the temperature of the internal-circulation subsystem exceeds a preset range, and controls the radiator to stop working when the temperature of the internal-circulation subsystem is within the preset range; and the external-circulation subsystem is used to release the heat of the internal-circulation subsystem transferred by the radiator into the outside. The embodiment of the invention can provide the vibrating mirror with a work environment smaller in temperature fluctuation.

Description

technical field [0001] The invention relates to the technical field of laser processing, in particular to a vibrating mirror constant temperature working system and a control method thereof. Background technique [0002] In laser processing equipment, high-speed galvanometer scanning systems are often used. The laser beam output by the laser hits the vibrating mirror, and the vibrating mirror is driven by a motor to swing at high speed under the control of the computer system, so as to control the laser beam to achieve processing at different positions within a certain range. The working accuracy of the vibrating mirror can only be guaranteed under constant temperature conditions. However, due to high frequency and high-speed deflection, the driving motor will generate heat. If the heat cannot be dissipated in time, it will not only affect the working precision of the vibrating mirror, but also affect its service life. [0003] In the prior art, a single-channel water circ...

AI Technical Summary

Problems solved by technology

Although this method can achieve the purpose of heat dissipation for the galvanometer, but because the chiller in the water circulation system is prone to damage when it is frequently started, its control accuracy for temperature is limited (usually within 4°C, up to ±1°C) , so that the temperature fluctuation of the working environment of the galvanometer is relatively large, which affects its working accuracy

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