Laser cladding powder feeding equipment

Abstract

The invention discloses laser cladding powder feeding equipment and relates to the technical field of laser cladding, a carrier gas powder feeding mode is converted into a gravity powder feeding mode, the technical problem that flowing gas blows away powder on the surface of a workpiece in the carrier gas powder feeding mode is avoided, a mechanical arm does not need to bear a heavy powder feeder, and the powder feeding efficiency is improved. The phenomena that when the mechanical arm moves, the powder feeding pipe shakes, and consequently powder is unstable and deviates when the powder feeding nozzle discharges powder are avoided, and the cladding quality and efficiency are improved. The laser cladding powder feeding equipment comprises a powder supply unit, a separation unit and a powder feeding nozzle, wherein the powder supply unit is used for providing carrier gas powder. The separation unit communicates with the powder supply unit and is used for receiving the carrier gas powder and separating gas and powder of the carrier gas powder. And the powder feeding nozzle is communicated with the separating unit, is used for receiving the separated powder and gathering the powder on the surface of the workpiece, and is positioned below the separating unit.

Description

technical field [0001] The invention relates to the technical field of laser cladding, in particular to a powder feeding equipment for laser cladding. Background technique [0002] Laser cladding technology is a new workpiece surface modification technology that has emerged with the development of high-power lasers. It adds cladding materials (usually powder) to the surface of the workpiece through laser cladding powder feeding nozzles, and uses high energy density. The laser beam is used to fuse it with the thin layer on the surface of the workpiece to form a metallurgically bonded cladding layer on the surface of the workpiece. The additive cladding layer can significantly improve the properties of the workpiece surface such as wear resistance, corrosion resistance, heat resistance, and oxidation resistance. [0003] In the prior art, there are mainly two methods of powder feeding in laser cladding processing. One is carrier gas powder feeding, which uses gas flow to carr...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a laser cladding powder feeding equipment, which converts the carrier gas powder feeding method into the gravity powder feeding method, which not only avoids the technical problem of flowing gas blowing away the powder on the surface of the workpiece in the carrier gas powder feeding method, Moreover, the mechanical arm does not need to carry a heavy powder feeder, which solves the problem of powder instability and deviation when the powder nozzle is discharged due to the shaking of the powder feeding pipe caused by the movement of the mechanical arm, and improves the cladding quality and efficiency.

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