Spindle apparatus and operating method thereof
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsJoo Ok Park, Jae Hyeon Park
Life of this patent
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Abstract
A spindle apparatus according to the present disclosure includes a housing, a spindle rotatably installed in the housing, a tool releasably engaged with one end of the spindle and having an insert tip movable in a radial direction of the tool, a first draw-bar movably mounted in the spindle, and a second draw-bar movably mounted in the first draw-bar. The tool and one end of the first draw-bar are releasably engaged with the one end of the spindle by a movement of the first draw-bar, and the insert tip is configured to move in the radial direction by a movement of the second draw-bar.
Claims16
A spindle apparatus comprising:
- a housing;
- a spindle rotatably installed in the housing;
- a tool releasably engaged with one end of the spindle and having an insert tip movable in a radial direction of the tool;
- a first draw-bar movably mounted in the spindle;
- and
- a second draw-bar movably mounted in the first draw-bar,
- wherein the tool and one end of the first draw-bar are releasably engaged with the one end of the spindle by a movement of the first draw-bar,
- wherein the insert tip is configured to move in the radial direction by a movement of the second draw-bar,
- wherein the tool has a first passage formed in the radial direction and a second passage formed in an axial direction of the tool,
- wherein the insert tip is mounted in the first passage to move along the radial direction of the tool,
- wherein an adjustment member is mounted in the second passage to move along the axial direction of the tool, and
- wherein the adjustment member is removably coupled to one end of the second draw-bar.
A method for operating a spindle apparatus that includes a spindle rotatably installed in a housing, a tool releasably engaged with one end of the spindle by a clamp and a collet, a first draw-bar movably mounted in the spindle, a second draw-bar movably mounted in the first draw-bar, a clutch unit configured to release or couple the second draw-bar and the spindle according to a rotational direction, and an insert tip configured to move in a radial direction of the tool, the method comprising:
- engaging the tool and one end of the first draw-bar with the one end of the spindle by moving the first draw-bar in a first direction;
- and
- moving the insert tip in the radial direction of the tool by moving the second draw-bar in the first direction or in a second direction;
- wherein the first direction and the second direction are opposite to each other in a lengthwise direction of the spindle,
- wherein the tool has a first passage formed in the radial direction and a second passage formed in an axial direction of the tool,
- wherein the insert tip is mounted in the first passage to move along the radial direction of the tool,
- wherein an adjustment member is mounted in the second passage to move along the axial direction of the tool, and
- wherein the adjustment member is removably coupled to one end of the second draw-bar.
Dependencies are inferred from the claim text.