Machining method of reverse chamfers

Abstract

The invention provides a machining method of reverse chamfers. The machining method includes the following steps that a reverse chamfering knife is assembled; a knife handle penetrates from one end ofa to-be-chamfered hole into an inner cavity in the other end of the to-be-chamfered hole; a knife bit of a cutting body being a truncated cone directly enters the inner cavity from the other end of the to-be-chamfered hole; the knife handle and the knife bit are fixedly connected; the reverse chamfers are machined; and the knife handle drives the knife bit to rotate, and the to-be-chamfered holeis subjected to reverse chamfer machining through a cutting blade on the side face of the truncated cone. The machining method has the beneficial effects that the proper type or dismounting and mounting manner of the chamfer machining knife is selected according to the requirements of different machining sizes and different limited spaces of products, thus, precise chamfering is carried out from bottom to top, the technical requirements of the products are met, the advanced level of the industry is reached, and the quality defects at different degrees that due to manual unreasonable operation,the interiors of parts are not uniformly chamfered, burrs are left, and internal scratches are generated are completely overcome.

Description

technical field [0001] The invention relates to the technical field of precision machinery manufacturing, in particular to a key manufacturing process aspect of a key mechanical component. Background technique [0002] With the rapid development of the domestic precision machining field, some complex components dominated by foreign countries have gradually been localized. However, due to the limitations of equipment, technical methods, personnel experience, processing tools and other factors, some key technical points cannot be efficiently broken through. . At present, many valve body cavity parts with complex structures involve split-layer processing, complex distribution of internal holes, and strict requirements for burr chamfering. Most of the existing inner hole reverse chamfering tools are tool handles and tool heads. The price is expensive, the operation process is not ideal, and the processing quality is unstable. In the absence of a more reasonable solution, most ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a processing method for reverse chamfering, which fundamentally solves the technical difficulties of fast chamfering that cannot be effectively carried out from bottom to top for precise one-time molding due to the limitation of the internal space of the part, and solves the above technical problems. Overcome the existing defects of the above-mentioned prior art

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