Deburring tool

A deburring tool particularly for use in deburring inner and outer end portions of a generally tubular workpiece, said tool comprising:

• a generally thin-walled cylindrical housing having a longitudinal axis extending between spaced apart first and second open ends;
• a generally conical blade support integral with said housing at a housing interior surface, said blade support extending radially inward from said interior surface and terminating in an apex area at said longitudinal axis, said conical blade support including first and second opposed surfaces generally facing said housing first and second open ends, respectively;
• said blade support having a plurality of apertures extending radially thereof and communicating between said first and second surfaces for defining a plurality of wedge portions, said apertures being generally equiangularly spaced apart from each other and each having an unstressed first predetermined width dimension;
• a blade assembly comprised of a plurality of blades equal in number to said plurality of apertures, each blade being fixedly secured to the other blades at an apex zone in a generally equiangular spaced relationship to extend angularly away from said apex zone at substantially the same angle as said blade support extends from said apex area;
• each of said blades having a second thickness dimension which is substantially greater than the unstressed first predetermined width dimension of each of said apertures, the individual blades of said blade assembly each being received in a press fit relationship by an associated aperture in said blade support such that said second blade thickness dimension is substantially equal to a stressed third predetermined width dimension of the apertures;
• and,
• each blade further including generally parallel first and second cutting surfaces, said first cutting surface being spaced axially outward from said blade support first surface and adapted for engaging an outer end portion of a generally tubular workpiece, and said second cutting surface being spaced outwardly from said blade support second surface and adapted for engaging an inner end portion of a generally tubular workpiece.

A deburring tool for reaming inner and outer diameter surfaces of an associated workpiece comprising:

• a generally cylindrical housing having first and second open ends spaced along a longitudinal axis;
• a generally conical support member extending radially inward from a housing interior surface, said support member having a base portion disposed adjacent said first end and an apex adjacent said second end at said longitudinal axis;
• said conical support member having plural, equal-sized, wedge-shaped members, said wedge-shaped members being spaced by apertures, each aperture having a first predetermined dimension;
• a blade assembly including,
• a plurality of substantially identical blades integrally joined together, each blade having a predetermined thickness dimension and parallel first and second angularly disposed cutting surfaces;
• said first cutting surface of each blade spaced outwardly from said conical support member in generally facing relation with said first end and adapted for reaming an associated workpiece;
• said second cutting surface of each blade spaced outwardly from an opposed surface of said conical support member in generally facing relation with said second end and adapted for reaming an inner diameter surface of an associated workpiece;
• and,
• said predetermined thickness dimension of each blade being substantially greater than said aperture first dimension and each blade being press fit into tight engaging relationship with said cylindrical housing.