Laser cutting device

Abstract

The invention discloses a laser cutting device, comprising a laser cutting head system, an X-Y workbench and a granite workbench of counterweight and a workpiece clamping mechanism. The laser cutting head system comprises a laser generator, a Z workbench and a control cabinet. The invention is characterized in that the X-Y workbench adopts a sliding block to carry out limitless circular restricted linear motion on a linear sliding track through steel balls between the sliding block and the linear sliding track; the laser generator is an optical fiber generator; the laser cutting head system also comprises a high-pressure oxygen nozzle at the circumference of the laser beam; when cutting, the oxygen flow basically coaxial with the laser beam is spouted out from the cutting head. The invention has the advantages of high cutting precision, high processing efficiency, low manufacture cost, low application cost, simple optical path correction, conveniently implementing miniaturization, being suitable for the cutting process of most of metal and non-metal material, also having the functions of sign marking, carving, punching, etc., and being widely applicable to industries of mechanism, steel, automobile, shipping, petrochemicals, cases and cabinets, and packages.

Description

technical field [0001] The invention relates to laser beam cutting processing with automatic alignment, aiming or focusing, and in particular to a laser cutting device. Background technique [0002] Compared with traditional cutting methods, laser cutting technology has high cutting quality, including narrow incision width, small heat-affected zone, smooth incision, high cutting speed, free cutting of any shape, and wide range of materials including metal and non-metal materials. The advantages. Laser cutting is achieved by applying high power density energy generated by laser focusing. The control system discharges the laser through pulses, so as to output controlled and repeated high-frequency pulsed laser light to form a beam with a certain frequency and a certain pulse width. The pulsed laser beam is transmitted and reflected by the optical path and focused on the processing object (the workpiece) On the surface of the workpiece, tiny, high-energy-density light spots a...

AI Technical Summary

Problems solved by technology

Existing laser cutting devices are generally motion platforms designed with air bearings, and a single axial design requires at least eight expensive air bearings, resulting in high manufacturing costs

In addition, the laser cutting device for cutting sus304 steel plate must use a laser source in the 1060nm band, most of which use Nd:YAG lasers, which have short lamp life, low conversion efficiency, large energy consumption, high cost of use, complex optical path correction, and strict The temperature control measures are difficult to realize the defect of miniaturization

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