Patent ID: 9108306
Filing Date: 2015-08-18
Classification: B25B,B25F

Abstract:
1. A machine tool, comprising: a drive device; a spindle driven by the drive device, the spindle having a free end and a receiving device disposed on the free end and configured to receive at least one of (a) a tool and (b) a tool holder; an output part joined in a rotationally fixed manner to the spindle; an input part provided in a drive train of the drive device, the input part including drivers and being configured to transfer a torque having a defined play in the direction of rotation via the drivers to the output part while a torque acting from the spindle in the direction of the drive device and exceeding a torque on the input side is supported on the housing of the machine tool via clamping surfaces on the periphery of the output part, via clamping elements and via a locking ring having a hollow cylindrical surface, wherein the output part includes a prismatic driving profile including two or more axially parallel planes, the two or more planes including clamping surfaces and driving surfaces, the driving surfaces configured to cooperate with the drivers of the input part, and the clamping surfaces are axially offset from the driving surfaces; and wherein the input part includes a planetary gear set configured as an end stage, the planetary gear set including a planet carrier including: