Rod of cutting tool and cutting tool

Abstract

A cutting tool rod and cutting tool, comprising a rod body, one end of which is provided with a locking portion and the other end serving as a shank, characterized in that the rod body further comprises a spiral structure and a load-bearing structure; a cavity is provided between the locking portion and the shank; the load-bearing structure is fixedly disposed in the cavity along the axial direction of the rod body and connected at its ends to the locking portion and the shank, respectively; the spiral structure comprises at least one spiral body, which is wound around the outer periphery of the load-bearing structure and extends helically along the axial direction of the rod body, with its ends connected to the locking portion and the shank, respectively; the inner side of the outer surface of the spiral body contacts the outer periphery of the load-bearing structure, and the outer side of the outer surface of the spiral body contacts the sidewall of the cavity. While meeting the rigidity and strength requirements for tool processing, the present invention reduces the weight of modular tools and lowers machine tool power consumption, making it applicable to a wider range of low-power machine tools. Reducing tool weight facilitates dynamic balancing control during tool processing, improving tool life and processing quality. It also reduces tool material loss, improves material utilization, and reduces tool cost.

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