초록 ▼

An apparatus for the non-circular peripheral machining of an out-of-round workpiece includes a lathe spindle for rotating the workpiece; a radially displaceable tool holder for carrying a tool to engage a peripheral face of the workpiece; a first and a second setting motor for displacing the tool ho

An apparatus for the non-circular peripheral machining of an out-of-round workpiece includes a lathe spindle for rotating the workpiece; a radially displaceable tool holder for carrying a tool to engage a peripheral face of the workpiece; a first and a second setting motor for displacing the tool holder in a radial direction during rotation of the lathe spindle; a first connecting device coupling the output of the first setting motor with the second setting motor and the tool holder for displacing, with incremental steps, the second setting motor and the tool holder as a unit in the radial direction; and a second connecting device coupling the output of the second setting motor with the tool holder for displacing, with incremental steps－that are of different magnitude from those of the first setting motor－the tool holder in the radial direction relative to the first connecting device and the first setting motor.

대표청구항 ▼

In an apparatus for the non-circular peripheral machining of an out-of-round hollow workpiece having outer and inner peripheral faces to be non-circularly machined; the apparatus including a lathe spindle having an axis of rotation, means for clamping the workpiece to the lathe spindle for rotation

In an apparatus for the non-circular peripheral machining of an out-of-round hollow workpiece having outer and inner peripheral faces to be non-circularly machined; the apparatus including a lathe spindle having an axis of rotation, means for clamping the workpiece to the lathe spindle for rotation therewith; a tool holder displaceable transversely to said axis for carrying a tool to engage the outer peripheral face of the workpiece for the external machining thereof; a first and a second setting motor for transversely displacing the tool holder during rotation of the lathe spindle; the improvement comprising means for rotating one of said setting motors in relatively large incremental steps and for rotating the other of said setting motors in relatively small incremental steps; first connecting means coupling the output of said first setting motor with said second setting motor and said tool holder for transversely displacing, with incremental steps, said second setting motor and said tool holder as a unit; second connecting means coupling the output of said second setting motor with said tool holder for transversely displacing, with incremental steps, said tool holder relative to said first connecting means and said first setting motor, whereby the relatively large and the relatively small incremental steps are superposed for transversely displacing said tool holder to an extent which is the combination of the relatively large and relatively small incremental steps; said second connecting means comprising a slide arranged for a transverse displacement with respect to said axis; mounting means for securing said tool holder to said slide; further comprising an additional tool holder for carrying an additional tool for engaging the inner peripheral face of the workpiece for the internal machining thereof; an additional slide arranged on said slide for transverse displacement with respect to said axis and relative to said slide; and a third setting motor mounted on said additional slide and connected to said additional slide for displacing said additional tool holder as a unit transversely to said axis and with respect to said slide. In an apparatus for the non-circular peripheral machining of an out-of-round workpiece, including a lathe spindle having an axis of rotation, means for clamping the workpiece to the lathe spindle for rotation therewith; a tool holder displaceable transversely to said axis and carrying a tool to engage a peripheral face of the workpiece; a first and a second setting motor for transversely displacing the tool holder during rotation of the lathe spindle; said setting motors having respective output shafts; the improvement comprising means for rotating one of said setting motors in relatively large incremental steps and for rotating the other of said setting motors in relatively small incremental steps; a first connecting means including a slide arranged for a substantially linear, transverse displacement with respect to said axis; said tool holder including a rocker having rigidly interconnected first and second arms and being pivotally mounted on said slide; said first arm carrying said tool and said second setting motor being mounted on said slide for movement therewith as a unit; the output shaft of said first setting motor being connected with said slide, for displacing, with incremental steps, said slide, said rocker and said second setting motor as a unit; and second connecting means for coupling the output shaft of said second setting motor with said second arm of said rocker for angularly displacing, with incremental steps, said rocker relative to said slide and said first setting motor, whereby the relatively large and the relatively small incremental steps are superposed for radially displacing said tool with respect to said axis to an extent which is the combination of the relatively large and relatively small incremental steps.