Coated type metal workpiece surface strengthening grinding processing method and device

Abstract

The invention discloses a coated type metal workpiece surface strengthening grinding processing method and device. The processing method comprises the following steps that (1), a to-be-processed workpiece is clamped on an electromagnetic centerless clamp, and a high-speed nozzle and a coating head are aligned to the processing surface of the workpiece; (2), a rotary driving mechanism is started, so that the electromagnetic centerless clamp drives the to-be-processed workpiece to rotate; (3), a mixing and coating device is started, grinding powder and a grinding liquid are mixed, and a mixed grinding material is coated on the surface of the workpiece through the coating head, and the grinding liquid adheres the grinding powder to the surface of the workpiece; and (4), a high-pressure spraying device is started, steel balls are sprayed to the surface of the workpiece at high speed, the steel ball with the high-speed directly impacts the grinding powder, the surface of the workpiece is subjected to strong impact through the grinding powder, and the surface of the workpiece forms a reinforced grinding layer. According to the method, not only the enhanced grinding processing effect canbe ensured to be more uniform, but also the situation that the grinding material is diffused in the working environment to cause pollution is avoided, and meanwhile, the surface oxidation of the workpiece is avoided.

Description

technical field [0001] The invention relates to a method and equipment for intensifying the surface of a metal workpiece, in particular to a method and equipment for intensifying and grinding the surface of a graffiti-type metal workpiece. Background technique [0002] With the development of modern industrial technology, people have higher and higher requirements for the safety and reliability of mechanical equipment, such as aircraft, armored vehicles, ships, locomotives, automobiles, internal combustion engines, steam turbines, metallurgical machinery, petroleum machinery, coal mining machinery, mines, etc. Machinery, etc.; among them, any load-bearing parts that bear cyclic loads may break due to fatigue at any time, and the consequences will not only cause property losses, but also cause casualties. Therefore, improving the fatigue strength and life of mechanical parts is of great significance. Great significance. [0003] Among them, some processing methods that use h...

AI Technical Summary

Problems solved by technology

[0005] 1. The mixing and distribution of steel balls, grinding powder and grinding liquid is uneven, which leads to the inability to continuously spray abrasives during processing, which affects the processing accuracy

[0006] 2. The grinding powder is randomly distributed on the steel balls. When spraying, it cannot be guaranteed that the grinding powder is uniformly adhered in front of each impact point, which greatly affects the cutting performance, and also reduces the impact strength of the processing area, resulting in residual pressure. Reduced stress, reduced fatigue resistance

[0007] 3. The grinding powder is directly sprayed and released into the atmosphere, and the density of suspended particles in the processing area increases, which pollutes the environment and seriously affects the health of the operators. At the same time, this part of the grinding powder cannot be recycled, resulting in a decrease in the utilization rate of the grinding powder

[0008] 4. During the processing, the processing surface of the workpiece is directly exposed to the air, which is easy to cause oxidation on the processing surface, and the quality needs to be improved

Images