Tool holder assembly with polygonal drive member
OwnerStojan Stojanovskiinventor
Life of this patent
Estimating the term…
Abstract
A tool holder assembly having a tool holder and a cutting tool. The cutting tool has a stepped shank that is matingly received within the lower end of the tool holder. The stepped shank is separated into distinct sections, including: a wedging section having conical mating surfaces, a drive section having polygonal cross-sections, and a cylindrical anti-tipping section. The drive section has a plurality of walls that run parallel to the longitudinal axis of the assembly.
Claims16
A tool holder assembly suited to be removably received into a tapered opening in the spindle of a machine tool, comprising:
- a cutting tool having cutting means on one end and a shank on the opposite end, said shank including a triangular drive section, the drive section includes three interconnected walls that are each parallel to a longitudinal axis of the shank, a cylindrical shaft extends axially from the drive section, the shaft includes a threaded axial bore;
- a tool holder body having an external tapered wall formed about an axial opening and receivable in an opening of a rotatable drive spindle, the axial opening passing through the tool holder body and has a first end with internal threaded means for receiving a retention knob and a second end that is shaped complementary to the shank;
- and
- fastening means contained within the axial opening connected to the threaded bore in the cutting tool to axially move the cutting tool toward the tool holder body and telescopically receive the shank within the second end of the tool holder body.
A tool holder assembly suited to be removably received into a tapered opening in the spindle of a machine tool, comprising:
- a cutting tool having cutting means on one end and a shank on the opposite end;
- a tool holder including a spindle-mating portion having an external tapered wall that is receivable in an opening of a rotatable drive spindle, and an elongated body which extends axially from spindle-mating portion, wherein an axial opening passes through the spindle-mating portion and body and wherein the axial opening in the body is shaped complementary to the shank to define a shank-receiving end;
- wherein the shank including drive means that abut a portion of the axial opening within the body and prevent the cutting tool from rotating relative to a longitudinal axis of the axial opening;
- and
- fastening means contained within the axial opening connected to the threaded bore in the cutting tool body to axially move the cutting tool toward the tool holder to telescopically receive the shank within the body.
The tool holder assembly as defined in claim 10, in which the shank includes a cylindrical shaft having a threaded axial bore, the shaft extends axially from the end of the drive means opposite to the cone section.
Dependencies are inferred from the claim text.