Gas curtain protected laser heat treatment machining head

Abstract

The invention provides a gas curtain protected laser heat treatment machining head, consisting of a mounting plate, a water cooler, lenses, an inclined reflecting mirror, an angle regulating mechanism, a focus lens, a cooling cylinder, a nozzle, a gas curtain protection mechanism and an anti-collision mechanism that are arranged sequentially. The gas curtain protection mechanism is connected between the focus lens and the cooling cylinder, and the anti-collision mechanism consists of a microswitch and a spring which are respectively connected between the focus lens and the gas curtain protection mechanism. The gas curtain protected laser heat treatment machining head has a function of protecting the gas curtain of the lenses so as to be capable of greatly reducing the possibility of lens pollution caused by the splash of slag, thereby effectively prolonging the service life of the lenses. The gas curtain protected laser heat treatment machining head has a function of anti-collision at any angle in a radial plane, can automatically detect the collision at any angle in the radial plane and stop a machine for protection immediately, thereby avoiding machine head damage caused by improper operation or programming; and the gas curtain protected laser heat treatment machining head can automatically restore to the initial state after the collision is eliminated without correcting an optical path again.

Description

technical field [0001] The invention relates to a laser heat treatment machine, in particular to an air curtain protecting a laser heat treatment processing head in the laser heat treatment machine. Background technique [0002] In recent years, laser heat treatment has been widely used in industrial production. Compared with traditional heat treatment processes, laser heat treatment has fast heating speed, small heat-affected zone, small stress and deformation, and is easy to realize computer control, so the process cycle is short. High production efficiency, especially suitable for partial heat treatment of large and complex parts. However, the current heat treatment often causes slag to splash when the workpiece is heat treated. When the slag adheres to the lens, the lens will be covered with dirt, especially when the high-temperature slag adheres to the lens, it will cause the lens to suddenly Heat up, even burst. Moreover, the structure is relatively simple, and it ca...

AI Technical Summary

Problems solved by technology

However, the current heat treatment often causes slag to splash when the workpiece is heat treated. When the slag adheres to the lens, the lens will be covered with dirt, especially when the high-temperature slag adheres to the lens, it will cause the lens to suddenly heat up, even burst

Moreover, the structure is relatively simple, and it can only perform basic heat treatment functions, such as welding, cladding, etc., especially most heat treatment processing heads do not have anti-collision devices. great economic loss

Even if part of the heat treatment processing head has a certain anti-collision function, it basically relies on a simple mechanical structure, and after the collision is eliminated, it cannot automatically recover

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