Laser cladding device capable of recycling and reusing reflected light

Abstract

The invention provides a laser cladding device capable of recycling and reusing reflected light. The laser cladding device capable of recycling and reusing reflected light comprises a reflecting cover, a laser head inner wall and a laser head outer wall, wherein the inner wall of the laser head is arranged inside the outer wall of the laser head, a laser beam channel used for transmitting a laserbeam is formed inside the inner wall of the laser head, a powder beam used for transmitting a powder beam is formed between the out wall of the laser head and the inner wall of the laser head, the laser beam passes through the laser beam channel and then is focused on the surface of a to-be-machined workpiece, the powder beam is focused on the surface of the to-be-machined workpiece after passingthrough the powder beam channel, the laser beam and the powder beam are focused on the same point on the surface of the to-be-machined workpiece, and a reflecting cover can reflect the laser reflectedby the surface of the to-be-machined workpiece back to the joint focus point where the laser beam and the powder beam located on the surface of to-be-machined the workpiece. According to the laser cladding device, a reflected light recycling and reusing mechanism and related cooling mechanism are arranged, so that the damage of the reflected laser to equipment and a human body is reduced, the laser utilization efficiency is improved, and the development bottleneck of an existing laser cladding technology is solved.

Description

technical field [0001] The invention relates to the technical field of laser cladding, in particular to a laser cladding device in which reflected light can be recycled and reused. Background technique [0002] Parts corrosion is the main cause of damage to mechanical equipment. The quality of the anti-corrosion ability of parts is directly related to the safe operation of mechanical equipment. It is a recently developed anti-corrosion technology to clad alloy powder on the surface of the workpiece by laser, but the use of alloy Powder laser cladding technology also has low laser utilization rate, and laser reflection is harmful to equipment and human body. [0003] Adding a light baffle on the laser head can solve the problem that the reflection is harmful to the equipment and the human body, but the light baffle will reflect the laser light to the non-melting pool part of the workpiece, causing the temperature of the workpiece to rise, which is not conducive to process con...

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Problems solved by technology

[0002] Parts corrosion is the main cause of damage to mechanical equipment. The quality of the anti-corrosion ability of parts is directly related to the safe operation of mechanical equipment. It is a recently developed anti-corrosion technology to clad alloy powder on the surface of the workpiece by laser, but the use of alloy Powder laser cladding technology still has low laser utilization rate, and laser reflection is harmful to equipment and human body

[0003] Adding a light baffle on the laser head can solve the problem that the reflection is harmful to the equipment and the human body, but the light baffle will reflect the laser light to the non-melting pool part of the workpiece, causing the temperature of the workpiece to rise, which is not conducive to process control and the laser utilization rate is low. The problem still cannot be effectively solved. Making the laser head into a spherical shape centered on the molten pool can improve the utilization rate of the laser, but the volume is relatively large, and the size of the cladding workpiece is severely limited.

In the prior art, there is no laser device with good applicability that can not only recover the laser, but also improve the utilization rate of the laser and reduce the harm of laser reflection to equipment and human body, which hinders the development of laser cladding technology. Based on this, the present invention proposes

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