A head exchangeable cutting tool

Abstract

The invention discloses a head switching type cutting tool, which comprises a tool bit component and a tool rod component. The tool bit component is provided with a variable core cone locking externalthread, and the tool rod component is provided with an assembly locking inner hole; the assembly locking inner hole is internally provided with a variable core cone locking internal thread; the diameter of the face where a thread tip cone of the variable core cone locking external thread is located is invariable, and the face where the root part of the thread is located is a cone face with the variable diameter; the face where a thread tip cone of the variable core cone locking internal thread is located is a cone face with the variable diameter, and the diameter of the face where the root part of the thread is located is invariable; the tool bit component is mutually matched with the variable core cone locking internal thread of the tool rod component through the variable core cone locking external thread, and thus the tool bit component and the tool rod component are connected and locked. According to the head switching type cutting tool, stability and safety of the tool bit component in the use process can be better improved, the strength of the interface between the tool bit component and the tool rod component can be improved, meanwhile, it is ensured that thread pretightening force of the tool bit component is large enough, and replaceability of the tool bit component and the tool rod component is further improved.

Description

technical field [0001] The invention relates to the technical field of cutting tools, in particular to a head exchangeable cutting tool. Background technique [0002] In the actual use of traditional solid carbide tools, only the blade part of the tool participates in the processing. Usually, when the tool reaches the scrapping standard, the handle of the tool is still intact, and the raw material of cemented carbide is wasted to a certain extent. With the rising price of cemented carbide raw materials in recent years, the economy of the overall cemented carbide cutting tool is getting lower and lower. Efficient use of cemented carbide raw materials will be the development direction of cemented carbide cutting tools. Milling cutters have become a hot demand in the current market. [0003] In the energy industry or other industries, because the parts especially require large overhanging tools, traditional carbide tools are not widely used due to their heavy weight and high c...

AI Technical Summary

Problems solved by technology

This will cause the strength of the position of the cutter head part or the cutter bar part close to the tapered mating surface to decrease, and this position is the position where the stress concentration of the cutter head part and the cutter bar part is concentrated, so the undercut will reduce the mating surface of the two The strength of the part affects the life of the tool and the safety during use

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