TOOL COUPLING BETWEEN TWO COUPLING PARTS, AND COUPLING PART FOR SUCH A TOOL COUPLING

摘要

A tool coupling used for a clamping connection between two coupling parts, in particular between a cutting head and a carrier of a rotary tool, in particular of a drill. The coupling parts comprise clamping sections, which respectively correspond to one another and which can be clamped against each other by turning counter to a predefined direction of rotation about an axis of rotation so that a press fit is produced. In order to produce a high clamping force and at the same time allow for a simple installation via screwing in, each clamping section comprises several successive clamping surfaces which—with respect to a cross section viewed orthogonally to the axial direction—respectively travel along a circular arc, wherein the diameter increases for clamping surfaces succeeding one another in the direction of rotation.

主权项

1. A tool coupling between two coupling parts extending in an axial direction, in particular between a cutting head and a carrier of a rotary tool, with a predefined direction of rotation, wherein the first coupling part—in particular the cutting head—comprises a clamping pin with a pair of clamping sections that are opposite one another on sides of the pin, and the second coupling part—in particular the carrier—comprises a pin receptacle with a pair of clamping sections that are opposite one another on sides of the receptacle, and wherein the clamping pin can be clamped by turning it counter to the direction of rotation about an axis of rotation into the pin receptacle so that clamping sections of the clamping pin and the pin receptacle that correspond to one another produce a press fit,wherein
each clamping section respectively comprises several successive clamping surfaces, which—in a cross section when viewed orthogonally to the axial direction—travel respectively along a circular arc having a predefined diameter, wherein the diameter of the clamping surfaces that are successive in the direction of rotation increases.