Machining tool

By optimizing the connection structure between the tool holder and the tool shank, the problem of insufficient rigidity of the machining tool was solved, enabling stable cutting and high-precision machining in complex structures.

CN122231331APending Publication Date: 2026-06-19NINGXIA ORIENT TANTALUM INDUSTRY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NINGXIA ORIENT TANTALUM INDUSTRY CO LTD
Filing Date
2026-05-20
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

When machining complex structures such as narrow-entry pipes or deep cavities, the cutting tool is prone to vibration due to insufficient overall rigidity, which makes it impossible to meet the machining accuracy requirements.

Method used

Design a machining tool including a tool head, a tool shank, and a tool holder. By setting the first side of the tool shank to be flush with the first side of the tool holder, and the second side of the tool shank to be closer to the first side of the tool holder than the second side of the tool holder, a continuous and coplanar support structure is formed. A transition connection surface is set at the connection between the tool shank and the tool holder to optimize the structural rigidity and bending strength of the tool shank.

Benefits of technology

It improves the structural rigidity and bending strength of the tool holder, reduces vibration and deformation during the cutting process, extends the service life of machining tools, and improves machining accuracy and surface quality.

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Abstract

This application provides a machining tool. The machining tool includes a cutting head, a cutting shank, and a cutting holder, all extending along a first direction and arranged sequentially. Each of the cutting head, cutting shank, and cutting holder has a first end and a second end opposite to each other along the first direction. The first end of the cutting head is connected to the second end of the cutting shank, and the second end of the cutting head includes a cutting portion. The first end of the cutting shank is connected to the second end of the cutting holder. Along a second direction perpendicular to the first direction, both the first and second sides of the cutting head gradually deflect from the first end to the second end. Along the second direction, the first side of the cutting shank is flush with the first side of the cutting holder, and the second side of the cutting shank is closer to the first side of the cutting holder than the second side of the cutting holder, forming a transition connection surface at the connection between the cutting shank and the cutting holder. This machining tool helps reduce vibration and deformation of the cutting shank caused by radial force during cutting, extends the service life of the machining tool, and improves the machining accuracy and the quality of the machined surface.
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