Automatic cutting edge changer for cutting tool
AssigneesAgency of Industrial Science and Technology, Ministry of International Trade & Industry
InventorsNobushige Sawai, Kaneyoshi Miyasaka, Ryoji Murata
Life of this patent
Estimating the term…
Abstract
An automatic rotational cutting edge changer for use with a tool tip having a plurality of cutting edges. When a sensor detects wear or chipping in the cutting edge in use, the cutting edge changer moves this cutting edge of the tool tip out of the cutting position of the cutting tip and brings a new cutting edge of the same tool tip to the cutting position by keeping the tool tip supported in position on a rotating member and causing the rotating member to be urged in its rotating direction by a lever operated by an actuating device for the cutting edge changer.
Claims19
A mechanism for changing the cutting edges of a workpiece cutting-tool tool-tip, comprising:
- a stationary member having a plurality of grooves defined therein, and a plurality of guide surfaces inclined transversely with respect to said grooves;
- a rotatable member, upon which said cutting-tool tool-tip is fixedly disposed, having a set of projections for disposition within said grooves of said stationary member so as to lock said tool-tip within a predetermined angular position relative to said cutting tool;
- means biasing said rotatable member toward said stationary member so as to retain said projections of said rotatable member within said grooves and said tool-tip in said locked position;
- a slideable member in contact with said rotatable member and slideably disposed within said stationary member under the influence of said biasing means between a first position at which said projections of said rotatable member are disposed within said grooves of said stationary member, and a second position at which said projections of said rotatable member are disposed freely outside of said grooves of said stationary member, said slideable member having means thereon for causing initial rotation of said rotatable member when said slideable member is disposed at said second position such that said rotatable member projections engage said transversely inclined surfaces of said stationary member under the influence of said biasing means so as to cause additional rotation of said rotatable member and said tool-tip to a new predetermined angular position relative to said cutting tool;
- and
- means for moving said slideable member from said first position to said second position against the biasing force of said biasing means.
Dependencies are inferred from the claim text.