Automatic light changing laser vision sensor for robot welding

The utility model relates to an automatic light changing laser vision sensor for robot welding, the sensor comprises a CCD camera, a laser generator, an automatic light changing system, a sensor shell and an external connecting line, the external connecting line is connected with a control module, and the CCD camera faces a welding part; the automatic light changing system is arranged at the bottom of the sensor shell and comprises a variable light reducing sheet, a light filter, a light dependent resistor and protective glass; the CCD camera, the variable dimmer, the photoresistor and the laser generator are connected with a control module through external connecting wires, and the control module comprises an adjustable voltage and a comparator. Compared with the prior art, the utility model has the advantages of improving the sensing range of the visual sensor, improving the anti-interference performance and the like. 本实用新型涉及一种用于机器人焊接的自动变光激光视觉传感器，传感器包括CCD相机、激光发生器、自动变光系统、传感器壳体和外部连接线，所述外部连接线连接控制模块，CCD相机面向焊接部位