Device and method for processing screw rotor, and cutting tool
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorKiyoharu Yonemaru
Life of this patent
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Abstract
A method for processing a screw rotor includes a step of rotating a blade holder 2 while shifting the blade holder 2 in X-axis, Y-axis, and Z-axis directions to form a groove on the outer surface of a rotating cylindrical workpiece 1 with a tool 3 using a processing apparatus having a bed 11; a C-axis shaft supporter 12 disposed on the bed 11; a C-axis shaft 14 held by the C-axis shaft supporter 12, the C-axis shaft 14 for rotating the cylindrical object 1; a column 13 disposed on the bed 11; the blade holder 2 rotatably held by the column 13; and the tool 3 attached to the blade holder 2.
Claims13
An apparatus for processing a screw rotor, comprising a bed;
- a C-axis shaft supporter disposed on the bed;
- a C-axis shaft held by the C-axis shaft supporter, for rotating a cylindrical workpiece;
- a column disposed on the bed;
- a blade holder rotatably held by the column;
- and a tool attached to the blade holder,
- wherein the apparatus further comprises a special shaft and an workpiece-attaching member, the special shaft being connected to the C-axis shaft and rotating in synchronism with the C-axis shaft, the workpiece-attaching member being connected to the special shaft and rotating in synchronism with the special shaft.
A method for processing a screw rotor comprising a step of rotating a blade holder while shifting the blade holder in X-axis, Y-axis, and Z-axis directions to form a screw groove on the outer surface of a rotating cylindrical workpiece with a tool, using a processing apparatus comprising a bed;
- a C-axis shaft supporter disposed on the bed;
- a C-axis shaft held by the C-axis shaft supporter, for rotating the cylindrical workpiece;
- a column disposed on the bed;
- the blade holder rotatably held by the column;
- and the tool attached to the blade holder.
A shaving bit for the side surface of a groove, wherein replaceable blades are disposed at right and left edges of the shaving bit, wherein the blades each have a rake angle of about 20° with respect to a surface adjacent to a flank.
A shaving bit for the side surface of a groove, wherein replaceable blades are symmetrically disposed at right and left edges of the shaving bit, wherein the blades each have a rake angle of about 20° at a flank.
A round bit for the bottom of a groove wherein a replaceable throw-away-chip blade is fixed with a clamping bolt.
Dependencies are inferred from the claim text.