Laser cutting head protective lens mounting module capable of detecting existence or inexistence of protective lens

Abstract

The invention discloses a laser cutting head protective lens mounting module capable of detecting existence or inexistence of a protective lens. The laser cutting head protective lens mounting modulecapable of detecting existence or inexistence of the protective lens comprises a sensor mounting base, an LED mounting base and a protective lens mounting base, wherein a sunken groove is formed in the upper surface of the sensor mounting base; the LED mounting base is fixedly arranged below the sensor mounting base; the protective lens mounting base is embedded in the lower surface of the sensormounting base and can be drawn out of one end of the sensor mounting base; an annular cylinder body is fixedly arranged in the sunken groove; a red light emitter and a red light receiver are symmetrically arranged on the annular cylinder body; red light is emitted to the protective lens in the protective lens mounting base by the red light emitter and then is emitted to the red light receiver after being refracted. The laser cutting head protective lens mounting module capable of detecting existence or inexistence of the protective lens can automatically detect whether the protective lens is mounted or not and can detect whether the protective lens can normally achieve the protective effect or not; furthermore the protective lens is convenient to assemble and disassemble.

Description

【Technical field】 [0001] The invention belongs to the technical field of laser cutting, in particular to a protective lens installation module in a laser cutting head which can detect whether the protective lens is present. 【Background technique】 [0002] As an important component of the laser cutting machine tool, the laser cutting head directly affects the cutting quality of the plate by the laser cutting machine tool. The high-power laser cutting head protective lens can be used to prevent debris from splashing during laser cutting and prevent the splash from damaging the internal lens. Due to the dust in the working environment and the metal droplets sputtered during the cutting process, it is easier to adhere to the lower surface of the protective lens, which leads to when the laser passes through the protective lens, the light beam is reflected into the cutting head cavity by the dust, causing the protective lens to overheat , so the protective lens needs to be replac...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the protective lens is usually replaced manually, and it is easy to miss or misplace the protective lens when replacing the protective lens. However, the traditional laser cutting head does not have a device and method for detecting the presence or absence of the lens. , once there is a state of missing, misplaced or protective lens bursting, it will instantly pollute the internal structure of the cutting head and the lens, and even directly cause the laser cutting head to be scrapped

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