Outside diameter finishing tool and method of making the same
AssigneeEngis Corporation
InventorsRobert Marvin, Malcolm Owen, Donald Bouchard
Life of this patent
Estimating the term…
Abstract
An outside diameter finishing tool (10) has an outer shell (16) and an inner annular abrasive layer (22) for precision finishing the outer surfaces of generally cylindrical workpieces. The inner layer (22) of the tool (10) is made of superabrasives and defines the cutting size of the tool (10). The inner layer (22) cuts simultaneously around the full periphery of a cylindrical workpiece rotated within the tool (10). A slot (14) is provided through the tool (10) to allow for radial adjustment of the cutting size of the tool (10).
Claims16
An outside diameter finishing tool comprising:
- a sleeve having an inner surface and an outer surface, the inner surface being formed by disposing abrasive material onto a generally cylindrical rod, the rod being inserted in a shell which circumferentially surrounds the rod and is spaced therefrom to define an annular space, the annular space being filled with an epoxy to retain the abrasive material, and the rod being removed to expose the abrasive material.
A process for manufacturing a tool for finishing the outside diameter of a workpiece comprising the steps of:
- a) providing a generally cylindrical rod;
- b) forming a coat of abrasive material about a portion of the rod;
- c) placing a shell around the abrasive coat, the shell having an inner surface and an outer surface, and defining an annular space between the abrasive coat and the inner surface of the shell;
- d) filling the annular space with an epoxy material;
- e) curing the epoxy material to secure the abrasive coat within the shell;
- and
- f) removing the rod to expose the abrasive coat.
A tool for finishing the outer diameter of a workpiece comprising:
- an outer shell having an outside surface and an inside surface;
- and
- an inner annular abrasive layer being disposed within the shell, the inner layer defining a cavity having at least one open end for receiving the workpiece to be finished;
- and means for holding either of said tool and workpiece, said holding means being adapted to guide said held tool or workpiece into more precise alignment with the other of said tool or workpiece,
- wherein said holding means is a gimbal that permits pivotal and sliding movement of said held tool or workpiece with respect to the other of said tool or workpiece.
A precision surface finishing tool for uniform micron-tolerance polishing of an outer diameter of a workpiece comprising:
- an outer shell having an outside surface and an inside surface;
- an inner annular abrasive layer fixedly secured to the inside surface of the shell, the inner layer defining a cavity having at least one open end for receiving the workpiece to be finished;
- wherein the tool has a slot therethrough to allow for expansion and contraction of the tool to radially adjust the inner layer of the tool.
Dependencies are inferred from the claim text.