Single shaft type table feed device
AssigneeNsk Ltd.
InventorsToshiharu Kajita, Hiroshi Fujita
Life of this patent
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Abstract
A single shaft type table feed device comprises a movable body and an auxiliary movable body 34. The movable body is supported by a guide rail 31 and can be freely moved by a feed screw shaft 35 in the axial direction thereof. The auxiliary movable body 34 includes an inside diameter portion through which the feed screw shaft 35 can be inserted. The auxiliary movable body 34 is supported by the guide rail 31 and freely movable in the axial direction thereof. The inside diameter portion 38a of the auxiliary movable body 34 is slidingly contacted with the feed screw shaft 35.
Claims19
A single shaft type table feed device comprising:
- a single feed screw shaft extending in an axial direction;
- a guide rail extending in parallel with said screw shaft;
- a moveable body movably supported by said guide rail and fed by said screw shaft in the axial direction;
- and
- an auxiliary moveable body disposed apart from said moveable body in the axial direction, movably supported by said guide rail and moveable with the moveable body in the same direction at the same speed,
- said auxiliary moveable body including an inside diameter portion through which said feed screw shaft can be inserted, the inside diameter portion of said auxiliary movable body being contactable with said feed screw shaft.
A single shaft type table feed device comprising:
- a single feed screw shaft extending in an axial direction;
- a guide rail extending in parallel with said screw shaft;
- a table;
- a moveable body secured to said table, movably supported by said guide rail and fed by said screw shaft in the axial direction;
- and
- an auxiliary moveable body secured to said table disposed apart from said moveable body in the axial direction and movably supported by said guide rail,
- said auxiliary moveable body including an inside diameter portion through which said feed screw shaft can be inserted, the inside diameter portion of said auxiliary movable body being contactable with said feed screw shaft.
Dependencies are inferred from the claim text.