Wear ring and extraction device for a rotatable tool
AssigneeThe Sollami Company
InventorPhillip Sollami
Life of this patent
Estimating the term…
Abstract
A rotatable tool has a cylindrical shank and a compressible sleeve fitted thereon to retain the shank in the bore of a tool holder. A wear ring is positioned behind the forward cutting end of the tool and against the forward surface of the tool holder. The compressible sleeve is locked to the wear ring to prevent rotation of the wear ring with the tool. Also, the outer diameter of the wear ring is greater than the width of the forward surface of the tool holder forming an overhang, and a second tool can then be used to engage the overhang to remove the tool from the tool holder.
Claims20
The combination comprising:
- a tool body having a tapered forward cutting end, an axial shank extending rearwardly of said forward cutting end, and a rearwardly facing annular surface joining a rearward end of said forward cutting end to a forward end of said shank,
- a compressible sleeve around said shank,
- an annular wear ring around said compressible sleeve,
- a tool holder having an axial bore and a forward surface and a side surface intersecting said forward surface, said shank of said tool within said compressible sleeve and said wear ring thereon inserted into said bore of said tool holder, and
- said wear ring having an outer end extending radially beyond said intersection of said side surface and said forward surface and forms an overhang wherein a second tool can engage said overhang to remove said tool from said tool holder.
A tool for use in a tool holder having a cylindrical bore, a forward surface and a side surface, said side surface intersecting said forward surface, said tool comprising
- a tool body having a tapered forward cutting end, an axial shank extending rearwardly of said forward cutting end, and a rearwardly facing annular surface joining a rearward end of said forward cutting end to a forward end of said shank,
- a compressible sleeve around said shank,
- an annular wear ring around said compressible sleeve,
- said wear ring having an outer end defining a radius greater than the distance from a center of said cylindrical bore to said intersection wherein said outer end of said wear ring extends beyond said intersection when said shank of said tool with said sleeve and said wear ring thereon is inserted into said bore and wherein a second tool can engage an overhang of said wear ring beyond said outer surface to remove said tool from said tool holder.
A wear ring for use with a rotatable tool having a tapered forward cutting end and a rearwardly extending cylindrical shank, said shank being rotatably received in a bore in a forward surface of a tool holder, said tool holder having a forward surface, an outer surface, said outer surface intersecting said forward surface, said wear ring comprising
- a body having a rearward surface, an inner opening and an outer end,
- said inner opening for receiving said shank of said tool,
- said outer end of said wear ring defining a radius larger than a distance between a center of said bore and said intersection wherein a second tool is engagable behind an overhand formed by said outer end of said wear ring for removing said tool from said tool holder.
A wear ring for use with a rotatable tool having a tapered forward cutting end and a rearwardly extending cylindrical shank, said shank being rotatably received in a bore in a forward surface of a tool holder, said tool holder having an outer surface intersecting said forward surface, said wear ring comprising
- a body having a rearward surface, an inner opening and an outer end,
- said inner opening for receiving said shank of said tool,
- an axially rearwardly extending projection from said rearward surface engagable by a non-rotatable member to prevent rotation of said wear ring with said tool.
Dependencies are inferred from the claim text.