Machine tool
AssigneeKummer Freres S.A., Fabrique de machines
InventorsJacques Muster, Fran.cedilla.ois Roquier
Life of this patent
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Abstract
The machine tool includes a workpiece-holding spindle consisting of a slide capable of being moved along the X-axis perpendicular to the main axis of rotation of the machine. The slide is moved via a tie-rod, actuated at one end by a numerical axis and having at the other end an oblique projection fitted in an oblique hole in the slide. Movement of the tie-rod along the Z-axis therefore causes movement of the slide, hence of the workpiece, along the X-axis. Provision is made for counterbalancing the rotating spindle. The machine tool is thus capable of machining parts having eccentric shoulders.
Claims16
Machine tool, comprising:
- a spindle rotating about an axis of rotation, said spindle including a workpiece holder or a tool holder capable of being thrown off center in relation to the axis of rotation of said spindle, the off-centering being obtained continuously and comprising any desired co-ordinate along an axis perpendicular to said axis of rotation of the spindle, the workpiece holder or the tool holder comprising a slide bearing a workpiece to be machined or a machining tool, said slide being capable of moving along the axis perpendicular to said axis of rotation of the spindle, a first spring being disposed between the spindle and the slide, the constant of said spring being so chosen that its force of pressure is greater than the centrifugal force exerted by the off-center slide.
Dependencies are inferred from the claim text.