Combined machining tool and machining method using same
AssigneeSugino Machine Limited
InventorsTomoaki Hori, Tomoya Naito
Life of this patent
Estimating the term…
Abstract
The burnishing part includes: a mandrel; burnishing rollers; a frame; an adjustment member that presses the frame axially from one end thereof to adjust the axial position of the frame with respect to the mandrel; and an elastic member that is arranged axially on the other side of the frame to support the frame. The reaming part includes: a base part that is detachably attached to the mandrel; and machining blades that are formed integrally with the base part. This results in providing a combined machining tool that is capable of machining an inner peripheral surface of a workpiece having a smaller diameter, and a machining method using the same.
Claims9
A combined machining tool comprising:
- a shank that has its rear end to be mounted on a processing machine;
- a burnishing part that is arranged on the shank and burnishes an inner peripheral surface of a workpiece;
- and
- a reaming part that is arranged in front of the burnishing part and executes reaming wherein the burnishing part comprises:
- a mandrel that is fixed to the shank and has an outer peripheral surface in a tapered shape;
- rollers that are arranged on the outer peripheral surface of the mandrel;
- a frame that holds the rollers so as to be rollable on the outer peripheral surface of the mandrel;
- an adjustment member that presses the frame axially from one end thereof to adjust its axial position with respect to the mandrel;
- and
- an elastic member that is arranged axially on the other side of the frame to support the frame, and
- wherein the reaming part comprises:
- a base part that is detachably attached to either the shank or a member which is connected to the shank;
- and
- a machining blade that is formed integrally with the base part,
- wherein a hole part is formed in either the shank or the member which is connected to the shank, to have inside a tapered surface whose diameter decreases rearward, and a cylindrical part is formed in the base part so as to be fitted into the hole part, to have outside a tapered surface whose diameter decreases rearward, so that the diameter of the tapered surface of the hole part is smaller than that of the tapered surface of the cylindrical part.
Dependencies are inferred from the claim text.