Processing method of impact block

Abstract

The invention discloses a processing method of impact blocks and relates to a processing technology of a mechanical product, in particular to the technical field of the processing technology of impact blocks of wind guns or stirring mills in rotary impact machinery. The invention is manufactured by adopting a method of manufacturing blanks by hot forging and forming by cold forging. As both the shape and the intra-cavity of the impact block are in special types and by calculating the deformation degree of cold and hot forging, hot forging is used in the shape blank forming; the intra-cavity is shaped and the shape thereof is finished by the cold forging. The material of the product is high strength alloy steel 20CrMo with high strength and worse plasticity, and the phenomenon of processing hardening exists, therefore, the blank needs to be fully annealed and softened after the hot forging so as to reduce the deformation resistance and improve the plasticity, which is in favor of forming by the cold forging and improving the service life of dies. The formed product is characterized by short production cycle, material saving, less equipment, good surface quality and high intensity.

Description

technical field [0001] The invention relates to a processing technology of mechanical products, in particular to the technical field of processing technology of impact blocks of wind guns or mixers in rotary impact machines. Background technique [0002] The impact block is a mechanism that realizes rotary impact. The rotary impact mechanism is used for machinery that needs to achieve rotary impact, such as wind triggers. Its main working principle is to put the impact block into the frame, and when the frame rotates, it impacts the main shaft once per revolution, so that the main shaft can obtain impact energy. Therefore, it is a particularly important part in this mechanism, and the strength requirement of this part is also particularly high. [0003] The traditional manufacturing process of traditional impact blocks is to superimpose round materials, and cut out the shape and inner cavity by wire cutting. This process has great disadvantages: 1. Low material utilization ...

AI Technical Summary

Problems solved by technology

[0003] The traditional manufacturing process of traditional impact blocks is to superimpose round materials, and cut out the shape and inner cavity by wire cutting. This process has great disadvantages: 1. Low material utilization rate; 2. Low production efficiency and long production cycle; 3. A lot of equipment is required (to ensure timely delivery, multiple wire cutting machine tools must be used for simultaneous processing); 4. The surface quality and parts strength are poor; 5. The manufacturing cost is high