Patent ID: 9221138
Filing Date: 2015-12-29
Classification: B23Q,Y10T

Abstract:
1. A tool changer for changing a tool on a spindle of a machine tool, comprising: a tool drum having a plurality of tool holders to hold tools adapted to be received by the spindle when the spindle is in a tool receiving position; an axle carrier to rotatably support the tool drum, the axle carrier to rotate about a rotational axis of the tool drum; a first coupling portion rotatably supported on the axle carrier; and a first gear stage to couple the first coupling portion and the tool drum, wherein the first coupling portion is adapted to be coupled or uncoupled with a second coupling portion that is rotatably supported on a spindle stock of the machine tool, the second coupling portion being connected to the spindle of the machine tool via a second gear stage, and wherein the tool drum is adapted to be driven by the spindle of the machine tool via the second gear stage when the first and second coupling portions are in a coupled state, the second and first coupling portions, and the first gear stage to align a longitudinal axis of the tool coupled to one of the tool holders relative to a rotation axis of the spindle when the spindle is in the tool receiving position, the first and the second coupling portions forming a non-gear positive-locking connection when the first and second coupling portions are in the coupled state, the first and second coupling portions to be coupled and uncoupled by moving the second coupling portion relative to the first coupling portion in a displacement direction of the spindle stock of the machine tool.