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Power control system and laser cutting device for industrial laser cutting device

A technology of optical power control and power control, applied in lasers, laser welding equipment, laser parts and other directions, can solve problems such as electromagnetic interference in power control systems, and achieve the effect of avoiding external interference and damage

Active Publication Date: 2018-06-19
CHENGDU FUYU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an anti-interference system for the existing laser cutting system, because the high voltage generated when the laser emits light is likely to cause electromagnetic interference to its power control system and easily cause high voltage and overcurrent damage to the power control system. Power control system of laser cutting device with strong capability and protective function

Method used

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  • Power control system and laser cutting device for industrial laser cutting device
  • Power control system and laser cutting device for industrial laser cutting device

Examples

Experimental program
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Embodiment 1

[0019] Example 1: Such as figure 2 As shown, this embodiment provides a power control system for a laser cutting device, which includes an internal control module 1 and an external control module 2. The external control module 2 is directly connected to a controlled CO2 laser, and the internal control module 1 and external The control module 2 is grounded separately;

[0020] The internal control module 1 includes a controller, and in this embodiment, the controller circuit is an FPGA circuit 11. The FPGA circuit 11 is used to send a switching optical signal and a first optical power control signal to the CO2 laser;

[0021] The external control module 2 includes a Schmitt trigger 22 and a DA conversion circuit 23 connected in sequence; in this embodiment, the Schmitt trigger 22 is a chip SN74HC14, which is used to control the first optical power The signal is inverted and shaped into a second optical power control signal, and the DA conversion circuit 23 is used to convert the ...

Embodiment 2

[0023] Embodiment 2: This embodiment provides a laser cutting device, and the laser cutting device includes the power control system as described in Embodiment 1.

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Abstract

The invention relates to the field of control over laser cutting devices, in particular to a power control system used for an industrial laser cutting device and the laser cutting device. The power control system used for the laser cutting device is used for dividing a control circuit into an internal control module and an external control module; and meanwhile a high-speed optocoupler is used for physically isolating the internal control module and the external control module. Thus, a laser switching-on and switching-off signal and a first laser power control signal which are sent by a controller are transmitted to the external control module through the optocoupler, further processed through the external control module and then sent to a controlled laser device; and external interference, caused by instantaneous high voltage of the laser device, on the internal control module can be effectively avoided, and internal control module elements higher in price can also be prevented from being subjected to instantaneous high-voltage damage.

Description

Technical field [0001] The invention relates to the field of laser cutting device control, in particular to a power control system and laser cutting device for industrial laser cutting devices. Background technique [0002] Laser cutting refers to focusing the laser beam emitted by the laser into a high-power density laser beam through the optical path system, and irradiating it to the surface of the workpiece to make the workpiece reach the melting point or boiling point. As the beam moves relative to the workpiece, the material will eventually form a slit. The cutting method to achieve the purpose of cutting; Compared with the traditional cutting method, the laser cutting method uses the beam instead of the traditional mechanical knife, which has high precision, fast cutting, and is not limited by the cutting pattern. It can be automatically typeset, save materials, and cut smoothly. , A series of advantages and features such as low processing cost, so it is more and more widel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/10
CPCB23K26/38B23K26/707
Inventor 谭平曹志明周维唐星黄俊豪
Owner CHENGDU FUYU TECH