Laser controller capable of realizing constant-temperature welding

Abstract

The invention discloses a laser controller capable of realizing constant-temperature welding. A split structure is formed between the controller and a laser device controlled by the controller. The controller comprises a main control plate and a real-time temperature detection probe, wherein the main control plate is used for combining with real-time temperature information, calculating through aprecise algorithm loaded in a microprocessor, and then outputting a laser power adjustment signal to the laser device; the real-time temperature detection probe is used for realizing non-contact real-time temperature detection for a welding point, the real-time temperature detection probe is a photodiode, and the photodiode is connected with a drive circuit; the drive circuit is in signal connection with a control center on the main control plate, and the drive circuit is used for converting a signal detected by the real-time temperature detection probe to a voltage signal which is capable ofbeing accepted by the microprocessor on the main control plate; and a control terminal used for realizing human-computer interaction is further connected to the main control plate. The controller hasthe technical effect of being capable of being separated from the laser device, and realizing high-accuracy constant-temperature control for different types of laser devices.

Description

technical field [0001] The invention relates to the technical field of laser welding, in particular to a constant temperature welding laser controller. Background technique [0002] Laser welding is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source. The welding process is of heat conduction type, that is, the laser radiation heats the surface of the workpiece, and the surface heat diffuses to the inside through heat conduction. The laser pulse width, energy, peak power and repetition frequency are controlled by the laser controller to melt the workpiece and form a specific molten pool. . Due to its unique advantages, it has been successfully applied in the precision welding of various micro and small parts. [0003] As an important part of laser welding equipment, the laser controller is directly designed as an integrated structure with the laser in the prior art, that is, a laser is fixedly equipped with a controller; the ...

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Problems solved by technology

[0003] As an important part of laser welding equipment, the laser controller is directly designed as an integrated structure with the laser in the prior art, that is, a laser is fixedly equipped with a controller; the inventor of this patent application found through research that different types of Lasers can actually be controlled by the same controller; in addition, the controllers in the prior art still have a lot of room for improvement in terms of compatibility and temperature control accuracy, and they cannot be directly spliced ​​to achieve different types of lasers. control the laser

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