High-speed laser cladding processing machine tool and processing method

Abstract

The invention discloses a high-speed laser cladding processing machine tool, and belongs to the technical field of machine tool processing. The high-speed laser cladding processing machine tool comprises a base, wherein a slide rail is arranged on the base; a rotary ejector pin is arranged on the slide rail in a sliding mode; one end of the slide rail is equipped with a chuck; the chuck is connected to a reduction box; the reduction box is connected to a first servo motor; a first slide table is mounted on the slide rail; one end of the first slide table is connected to a second servo motor, and the other end of the first slide table is connected to a first lead screw; the first lead screw is connected to a third servo motor; a bracket is fixedly mounted on the first slide table; a secondslide table is mounted on the bracket; one end of the second slide table is equipped with a fourth servo motor; a laser cladding head bracket for mounting a laser cladding head is fixedly arranged onthe second slide table; a small slide rail is arranged on the first slide table at one side of the laser cladding head bracket; two movable bases are mounted on the small slide rail in the sliding mode; the movable bases are connected to a two-way lead screw; the two-way lead screw is connected to a fifth servo motor; a grinding mechanism is mounted on the movable bases; and a damping mechanism ismounted between the movable bases and the grinding mechanism.

Description

technical field [0001] The invention relates to the technical field of machine tool processing, in particular to a high-speed laser cladding processing machine tool and a processing method. Background technique [0002] Laser cladding refers to placing the selected coating material on the surface of the substrate to be clad in different ways, and then irradiating it with laser to melt it and a thin layer on the surface of the substrate at the same time, and form a very low dilution after rapid solidification. The surface coating that is metallurgically combined with the substrate is a process method that significantly improves the wear resistance, corrosion resistance, heat resistance, oxidation resistance and electrical properties of the base surface, so as to achieve the purpose of surface modification or repair, which not only satisfies the specific needs of the material surface Performance requirements, but also save a lot of precious elements. Compared with surfacing, ...

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Problems solved by technology

[0003] Although laser cladding technology is superior to some traditional technologies, laser cladding technology uses high-energy laser beams as the heat source processing process, and the strength of the workpiece will decrease under high temperature conditions.

In addition, during the heating and cooling process, the temperature changes of various parts of the workpiece are difficult to be completely consistent. The asynchronous nature of this temperature change will cause changes in the thermal stress and tissue stress of the workpiece. When the plastic resistance of a certain part of the workpiece is under high temperature, irreversible thermal deformation will occur at this part. If it is a rigid connection, it will virtually increase the axial constraint of the workpiece when it is thermally expanded during processing, thereby increasing the amount of deformation, which may cause the workpiece to swing or be damaged during operation.

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