Laser plasma dual-use cutting machine

Abstract

The invention discloses a laser plasma dual-use cutting machine which comprises a beam which is connected with a lathe bed in a transmission mode. A drag plate is connected with the beam in the transmission mode. A working table and a drag chain are fixedly connected with the lathe bed. An yttrium aluminum garnet (YAG) solid laser generator is arranged on the drag plate. The YAG solid laser generator is provided with a light dipping supporting plate. Two sets of lifting mechanisms are connected with the light dipping supporting plate in an installing mode, one set of lifting mechanisms is connected with a double-focal-distance cutting head in the installing mode, and the other set of lifting mechanisms is connected with a plasma cutting torch in the installing mode. The lathe bed is further provided with a rotary cutting pipe chuck and a rotary cutting pipe supporting frame. A laser cutting head and a numerical control plasma cutting head are both arranged on a numerical control cutting machine, and the laser cutting head and the numerical control plasma cutting head are reasonable in structure. Different processing requirements of workpieces can be met by the solid laser generator and the double-focal-distance cutting head, wherein the mirror spacing of the solid laser generator is convenient to adjust, the solid laser generator is good in dust-proof effect, and the double-focal-distance cutting head is capable of changing focal distances rapidly and high in processing precision. The laser plasma dual-use cutting machine particularly conducts cutting on metal tubular products.

Description

technical field [0001] The invention relates to an industrial cutting equipment, especially a laser plasma dual-purpose cutting machine Background technique [0002] Existing CNC cutting machines mainly include two types of CNC laser cutting machines and CNC plasma cutting machines. The function is single, and the processing accuracy cannot be compared with the CNC laser cutting machine. Although the general laser and plasma dual-purpose cutting machine can combine the advantages of the two, due to the mutual interference of the cutting head settings, it can only be used interchangeably. It brings trouble, and the existing CNC laser cutting machine and CNC plasma cutting machine generally can only cut metal sheets. The position between the cutting head and the cutting head needs to be constantly adjusted, which poses a problem for plasma and laser cutting machines to cut pipes, making plasma and laser cutting machines unable to be widely used in pipe cutting. [0003] At t...

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Problems solved by technology

[0002] Existing CNC cutting machines mainly include two types of CNC laser cutting machines and CNC plasma cutting machines. The function is single, and the processing accuracy cannot be compared with the CNC laser cutting machine. Although the general laser and plasma dual-purpose cutting machine can combine the advantages of the two, due to the mutual interference of the cutting head settings, it can only be used interchangeably. It brings trouble, and the existing CNC laser cutting machine and CNC plasma cutting machine generally can only cut metal sheets. The position between the cutting head and the cutting head needs to be constantly adjusted, which poses a problem for plasma and laser cutting machines to cut pipes, so that plasma and laser cutting machines have not been widely used in pipe cutting

[0003] At the same time, during laser cutting, solid-state laser generators are generally used as lasers for metal cutting and welding. Solid-state laser generators generally include red light mirrors, reflectors, condenser cavities, half mirrors, beam expanders, etc. Solid-state laser generators Adjusting the distance between various mirrors in use is an important factor affecting the laser generation parameters. At the same time, because solid-state laser generators are widely used as metal cutting and welding lasers, the use environment is poor and the dustproof effect is not good. Laser lenses, protection The lens is easy to be hit by dust to form plaques, which seriously affects the size of the laser energy, which will make the laser unstable, the energy generated is low, and the cutting effect is poor

In addition, the focusing mirror is a necessary part of the laser cutting head. Due to the working nature of the laser cutting head, when it is necessary to cut steel plates of different thicknesses, the focal length of the focusing mirror needs to be adjusted. The high-temperature fines make the focusing lens damaged, so it must be replaced. Due to its structural reasons, the laser cutting head of the prior art needs to disassemble multiple parts to replace the focusing lens. At the same time, due to the structural reasons of the laser cutting head of the prior art , there is a problem of lack of cooling system or the cooling system is too complicated and the cooling effect is not good. Once the working time is too long, the internal temperature will rise sharply, which will not only affect the cutting accuracy and reduce work efficiency, but also cause serious damage to internal parts. Loss

Therefore, in the laser head cutting, the complicated process of adjusting the focal length and replacing the focusing lens affects the work efficiency and greatly slows down the work progress.

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