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US 6,074,282 AGranted
External hone and method of making and using the same
AssigneeSunnen Products Company
InventorJohn J. Schimweg
Life of this patent
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AssigneeSunnen Products Company
InventorJohn J. Schimweg
Estimating the term…
A honing member for use in honing the external cylindrical surface of a workpiece comprising an elongated annular member having a passageway extending the entire length therethrough, the inner annular surface of such passageway having abrasive particles attached directly thereto or formed integrally therewith, the inner annular surface being substantially cylindrical in shape and having at least one tapered portion adjacent one end portion of the honing member, and a slot formed through one side portion of the annular member extending the full length thereof to facilitate expansion and contraction thereof to radially adjust the diameter of the inner surface of the annular member. In a preferred embodiment, the present honing member is formed through the use of an electroplating or electro-forming process using a forming mandrel, and the inner annular surface of such honing member includes at least two tapered abrasive portions and a substantially cylindrical portion which establishes the final diameter to which the external cylindrical surface of a workpiece will be honed. Attaching or integrally forming the abrasive particles directly onto the inner surface of the honing member facilitates the dissipation of heat generated during a honing operation and provides a better support platform for the abrasive particles thereby increasing both the longevity of the honing member as well as the accuracy and consistency of honing cylindrical workpiece surfaces to very precise tolerances. Several embodiments of the present honing member are disclosed herein including several methods of manufacture, several methods of using the present honing members, and several mounting fixtures capable of supporting the present honing members in either a horizontal or a vertical honing position.
An apparatus for use in honing the external cylindrical surface of a workpiece, said apparatus comprising an elongated annular metal member having opposed end portions, an outer surface adapted to be held by support means for holding the annular member in a position for honing, and an inner surface defining a passageway extending therethrough from end-to-end adapted for receiving the workpiece, the inner surface of said annular metal member including particles of an abrasive material extending substantially the full length thereof, the metal of the annular metal member being formed around the particles of said abrasive material binding the particles to the inner surface and extending continuously from the inner surface to the outer surface around the annular metal member, the inner surface of said annular metal member having a first abrasive portion of a substantially frusto-conical shape extending from adjacent one end of said annular metal member along a portion of the length thereof to an intermediate location therealong and a second abrasive portion which extends from the opposite end of said first abrasive portion towards the opposite end of said annular metal member, said first abrasive portion being adapted for removing material from the external cylindrical surface of the workpiece at a first rate during a honing operation, said second abrasive portion being adapted for removing material from the external cylindrical surface of the workpiece at a lesser rate than said first abrasive portion, said second abrasive portion being adapted for establishing the final diameter of the external cylindrical surface of the workpiece, and a slot formed through one side portion of said annular metal member extending the full length thereof to facilitate expansion and contraction thereof to radially adjust the diameter of the inner surface of said annular metal member.
An apparatus for use in honing the external cylindrical surface of a workpiece, comprising an elongated annular metal member having opposed end portions, inner and outer surfaces, and a passageway extending therethrough from end-to-end, the inner metallic surface of said annular member including an abrasive material extending substantially the full length thereof, said abrasive material being formed directly onto and integral with the inner metallic surface of said annular member, the inner surface of said annular member having a first abrasive portion of a substantially frusto-conical shape extending from adjacent one end of said annular member along a portion of the length thereof to an intermediate location therealong and a second abrasive portion which extends from the opposite end of said first abrasive portion towards the opposite end of said annular member, said first abrasive portion removing material from the external cylindrical surface of a workpiece to be honed at a first rate during a honing operation, said second abrasive portion removing material from the external cylindrical surface of the workpiece to be honed at a lesser rate than said first abrasive portion, said second abrasive portion establishing the final diameter of the external cylindrical surface of the workpiece to be honed, and a slot formed through one side portion of said annular member extending the full length thereof to facilitate expansion and contraction thereof to radially adjust the diameter of the inner surface of said annular member, and
An apparatus for use in honing the external cylindrical surface of a workpiece comprising an elongated substantially tubular member having opposed end portions, inner and outer surfaces, and a passageway extending therethrough from end-to-end, a plurality of channels formed at circumferentially spaced locations around the inner surface of said tubular member extending substantially the full length thereof, an abrasive honing member positionable in each of said plurality of channels, each of said abrasive honing members having a workpiece engaging portion disposed so as to face the center of said passageway when mounted in one of said channels, said workpiece engaging portions of said abrasive honing members including elongate portions disposed so as to be located equidistant from the center of the passage for establishing the final diameter of the external cylindrical surface to be honed, and an opening extending through one side portion of said tubular member from end-to-end to facilitate expansion and contraction thereof.
An apparatus for use in honing the external cylindrical surface of a workpiece comprising an elongated annular member having opposed end portions, inner and outer surfaces, and a passageway extending therethrough from end-to-end, the inner surface of said annular member having a layer of an abrasive material attached directly thereto and extending substantially the length thereof, a slot formed through one side portion of said annular member extending the full length thereof to facilitate expansion and contraction thereof to radially adjust the diameter of the inner surface of said annular member, and a support member for holding said annular member in a position for honing, said support member having a central opening formed therethrough for receiving said annular member and having a passageway through one side portion thereof which communicates with said central opening, said support member further including a plurality of circumferentially spaced openings communicating with said central opening including means for adjusting the width of said passageway in said support member and the width of said slot in said annular member to adjust the diameter of the inner surface of said annular member.
A method of honing the external cylindrical surface of a workpiece comprising the following steps:
An apparatus for use in honing the external cylindrical surface of a workpiece, comprising an elongated annular member having opposed end portions, inner and outer surfaces, and a passageway extending therethrough from end-to-end, the inner surface of said annular member having a layer of an abrasive material attached directly thereto and extending substantially the length thereof, a slot formed through one side portion of said annular member extending the full length thereof to facilitate expansion and contraction thereof to radially adjust the diameter of the inner surface of said annular member, and a support member for holding said annular member in a position for honing, said support member having a central opening formed therethrough for receiving said annular member and having a passageway through one side portion thereof which communicates with said central opening, said support member further including a plurality of circumferentially spaced openings communicating with said central opening including means for adjusting the width of said passageway in said support member and the width of said slot in said annular member to adjust the diameter of the inner surface of said annular member, and said support member including means for aligning the slot formed in said annular member with the passageway formed in said support member.
An apparatus for use in honing the external cylindrical surface of a workpiece comprising an elongated annular member having opposed end portions, inner and outer surfaces, and a passageway extending therethrough from end-to-end, the inner surface of said annular member having a layer of an abrasive material attached directly thereto and extending substantially the length thereof, a slot formed through one side portion of said annular member extending the full length thereof to facilitate expansion and contraction thereof to radially adjust the diameter of the inner surface of said annular member, and a support member for holding said annular member in a position for honing, said support member having a central opening formed therethrough for receiving said annular member and having a passageway through one side portion thereof which communicates with said central opening, said support member further including a plurality of circumferentially spaced openings communicating with said central opening including means for adjusting the width of said passageway in said support member and the width of said slot in said annular member to adjust the diameter of the inner surface of said annular member, and said support member including means for controlling the maximum amount of width adjustment of said slot in said annular member, said means including a threaded bore in said support member adaptable to receive a threaded member, said threaded member having an end portion that is adjustable to be positioned in the passageway of said support member in spaced relationship to one side of said passageway, the position of the end portion of said threaded member controlling the maximum amount of width adjustment of said slot.
Dependencies are inferred from the claim text.