Combined machining apparatus for making piston rings
AssigneeKomatsu Machinery Corp.
InventorMasahiro Shoji
Life of this patent
Estimating the term…
Abstract
A combined apparatus for making piston rings is disclosed which is provided with an interior-exterior working machine (1) operable under synchronous control by an NC unit (36) for machining both inside and outside of a workpiece (16) composed of a stack of piston ring workpieces brought and held together; a severing machine (41) for severing the workpiece (16) longitudinally thereof; and a common bed (1a), wherein the interior-exterior working machine (1) as a first machine body and said severing machine (41) as a second machine body are mounted adjacent to each other on the common bed (1a).
Claims8
A combined apparatus for making piston rings from a workpiece constituted of vertically stacked piston ring workpieces brought and held together, comprising:
- an interior and exterior working machine operable under synchronous control by an NC unit for machining both inside and outside of the stacked workpiece;
- a severing machine for severing the stacked workpiece in a direction of a workpiece axis extending substantially vertically;
- and
- a common bed,
- wherein said interior and exterior working machine as a first machine body and said severing machine as a second machine body are mounted adjacent to each other on said common bed, and
- wherein said interior and exterior working machine comprises:
- an upper and a lower workpiece support means for jointly clamping the stacked workpiece oriented substantially vertically, from opposite upper and lower sides of the stacked workpiece to support the stacked workpiece rotatably about said axis;
- a C-axis drive means for driving both said upper and lower workpiece support means synchronously to positively drive both sides of said stacked workjpiece to rotate said stacked workpiece about said axis;
- an exterior machining means having a first cutting tool arranged to be movable in a direction of an X-axis orthogonal to said workpiece axis for shaping an outer surface of said stacked workpiece;
- an interior machining means having a second cutting tool arranged to be movable in a direction of a U-axis parallel to said X-axis and adapted to be inserted into the inside of said stacked workpiece from an end side of the stacked workpiece for shaping an inner surface of said stacked workpiece;
- and
- a Z-axis drive means for acting on both said upper and lower workpiece support means to move said stacked workpiece in a direction of said workpiece axis.
A combined apparatus for making piston rings from a workpiece constituted of horizontally stacked piston ring workpieces brought and held together, comprising:
- an interior and exterior working machine operable under synchronous control by an NC unit for machining both inside and outside of the stacked workpiece;
- a severing machine for severing the stacked workpiece in a direction of a workpiece axis extending substantially horizontally;
- and
- a common bed,
- wherein said interior and exterior working machine as a first machine body and said severing machine as a second machine body are mounted adjacent to each other on said common bed, and
- wherein said interior and exterior working machine comprises:
- a left and a right hand workpiece support means for jointly clamping the stacked workpiece oriented substantially horizontally, from opposite left hand and right hand sides of the stacked workpiece to support the stacked workpiece rotatably about said axis;
- a C-axis drive means for driving both said left and right hand workpiece support means synchronously to positively drive both sides of said stacked workpiece to rotate said stacked workpiece about said axis;
- an exterior machining means having a first cutting tool arranged to be movable in a direction of an X-axis orthogonal to said workpiece axis for shaping an outer surface of said stacked workpiece;
- and
- an interior machining means having a second cutting tool arranged to be movable in a direction of a U-axis parallel to said X-axis and adapted to be inserted into the inside of said stacked workpiece from an end side of the stacked workpiece for shaping an inner surface of said stacked workpiece;
- and
- a Z-axis drive means for acting on both said left and right hand workpiece support means to move said stacked workpiece in a direction of said workpiece axis.
Dependencies are inferred from the claim text.