Cutting tool having a tool coupling with offset peripheral and central coupling threads and method of assembly thereof

摘要

A cutting tool includes first and second components, configured for differential coupling with each other. The first and second components each include peripheral and central coupling threads which each extend in a helical direction about a component axis of the respective component. Each component's peripheral and central coupling threads are axially offset with respect to each other. The first and second components each include a radial stop surface located at the respective peripheral coupling thread. In an assembled position of the cutting tool, the radial stop surfaces abut each other and the peripheral and central coupling threads of the first component threadingly engage the peripheral and central coupling threads of the second component, respectively, forming a differential tool coupling between the first and second components.

主权项

1. A cutting tool (20), having a cutting portion (26), comprising:
a first component (22) having a first component axis (A) and comprising:
first peripheral and central coupling threads (32, 34), each extending in a helical direction about the first component axis (A), the first peripheral and central coupling threads (32, 34) being axially offset with respect to each other; anda first radial stop surface (40) located at the first peripheral coupling thread (32); and a second component (24) having a second component axis (B) and comprising:
second peripheral and central coupling threads (36, 38), each extending in a helical direction about the second component axis (B), the second peripheral and central coupling threads (36, 38) being axially offset with respect to each other; anda second radial stop surface (42) located at the second peripheral coupling thread (36); wherein the cutting tool (20) is adjustable between:
an unassembled position in which:
the first and second components are separated from one another, andan assembled position in which:
the first and second radial stop surfaces (40, 42) abut each other;the first peripheral and central coupling threads (32, 34) threadingly engage the second peripheral and central coupling threads (36, 38), respectively, anda differential tool coupling is formed between the first and second components (22, 24).