Machine for the fine machining of tooth flanks of gear-shaped workpieces with an internally toothed tool

摘要

A machine for the fine machining of the tooth flanks of gear-shaped workpieces (W) with an internally toothed tool (T) is presented, having a tool head (13) which can be set at an angle about an axis (A) directed transversely to the workpiece axis (C2) and is intended for accommodating the tool (T) in a rotationally drivable manner, devices (17, 18) for accommodating the workpiece (W) to be machined, and devices for effecting infeed and working movements of the tool (T) relative to the workpiece (W). In this machine, the movable tables present in known machines for accommodating the workpiece with the disadvantages resulting therefrom are avoided. This is achieved with the following construction of the machine: a slide (7) horizontally displaceable in the X-direction transversely to the workpiece axis (C2) is arranged on the machine frame (1), and a slide (9) vertically displaceable in the Y-direction is arranged on the slide (7). In the slide (9), the tool head is accommodated in a circular guide (12) in such a way as to be pivotable about an axis (A) lying in the X-direction. A headstock (3) and a tailstock (4) for accommodating the workpiece (W) are provided on the left and right of the tool head (13). The headstock (3) and the tailstock (4) are movable on the machine frame (1) in the Z-direction, i.e. in the direction of the workpiece axis (C2). To this end, the headstock (3) can be driven; the tailstock (4) is accordingly made to follow the headstock (3).