Dual brake rotor finishing system
OwnerPaul R. Baldwin, David N. Wong +1inventors
InventorsPaul R. Baldwin, David N. Wong, John Guariglio
Life of this patent
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Abstract
A brake rotor refinishing system provides simultaneously refinishing of two workpieces that are clamped at opposite ends of a duplex chuck, when the chuck is installed on a machine spindel. The duplex chuck has respectives sets of jaws that are independently driven by separate pinion elements. In the case of disk brake rotors, opposite sides of both workpieces are finished simultaneously. The system also includes a refinishing machine that incorporates the spindle and a machining mechanism having cutting elements for simultaneously refinishing opposite sides of a pair of disk rotors.
Claims19
A duplex chuck for refinishing differently configured rotor workpieces on a spindle member having a clamping arbor nut, each rotor workpiece having a centering diameter and a rotor mounting surface, the duplex chuck comprising:
- (a) a chuck body having a body bore for locating on the spindle member and rotation therewith, respective pluralities of radially oriented first and second jaw slots being formed in respective opposite ends of the chuck body;
- (b) respective sets of first and second chuck jaws for slidably engaging the first and second jaw slots of the chuck body, the jaw members of each set having respective shoulder surfaces for engaging the centering diameter of one of the rotor workpieces;
- (c) first and second scroll members rotatably mounted in the body for radially advancing corresponding first and second chuck jaws when the jaws are engaging the first and second jaw slots;
- (d) a first pinion member rotatably mounted in the chuck body and having geared engagement with the first scroll member for rotation thereof;
- and
- (e) a second pinion member rotatably mounted in the chuck body and having geared engagement with the second scroll member for rotation thereof,
- the pluralities of first and second chuck jaws being independently advanceable in response to corresponding rotation of the first and second pinion members.
An apparatus for refinishing differently configured rotor workpieces on a spindle member having a clamping arbor nut, each rotor workpiece having a centering diameter and a rotor mounting surface, the apparatus comprising:
- (a) a base;
- (b) a powered spindle supported relative to the base and having a spindle diameter;
- (c) a duplex chuck having a chuck body for mounting on the spindle diameter, respective sets of first and second jaw members being radially movable at high mechanical advantage relative to opposite ends of the chuck body for radially clampingly locating respective first and second rotor workpieces concentrically relative to the spindle;
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- (d) machining means for shaping surfaces of the first and second rotor workpieces when the workpieces are being turned by the spindle.
An apparatus for refinishing differently configured rotor workpieces on a spindle member having a clamping arbor nut, each rotor workpiece having a centering diameter and a rotor mounting surface, the apparatus comprising:
- (a) a duplex chuck having a chuck body for mounting on the spindle diameter, respective sets of first and second jaw members being radially movable at high mechanical advantage relative to opposite ends of the chuck body for radially clampingly locating respective first and second rotor workpieces concentrically relative to the spindle, the chuck having oppositely facing face planes for contacting the rotor workpieces perpendicular to the spindle when the chuck is mounted on the spindle member;
- and
- (b) first and second flange members having respective flange inside diameters for locating on the spindle, and respective flange faces formed perpendicular to the flange inside diameters, for axially clamping respective rotor workpieces against the first and second face planes when the flange members are axially clamped on the spindle toward the opposite ends of the chuck body with the rotor workpieces engaging corresponding first and second chuck jaws.
An apparatus for refinishing differently configured rotor workpieces on a spindle member having a clamping arbor nut, each rotor workpiece having a centering diameter and a rotor mounting surface, the apparatus comprising:
- (a) a duplex chuck comprising:
- (i) a chuck body having a body bore for locating on the spindle member and rotation therewith, respective pluralities of radially oriented first and second jaw slots being formed in respective opposite ends of the chuck body;
- (ii) respective sets of first and second chuck jaws for slidably engaging the first and second jaw slots of the chuck body, the jaw members of each set having respective shoulder surfaces for engaging the centering diameter of one of the rotor workpieces;
- (iii) first and second scroll members rotatably mounted in the body for radially advancing corresponding first and second chuck jaws when the jaws are engaging the first and second jaw slots;
- (iv) a first pinion member rotatably mounted in the chuck body and having geared engagement with the first scroll member for rotation thereof;
- (v) a second pinion member rotatably mounted in the chuck body and having geared engagement with the second scroll member for rotation thereof,
- the pluralities of first and second chuck jaws being independently advanceable in response to corresponding rotation of the first and second pinion members a base, the first and second pinion members being rotatable on respective pinion axes, the pinion axes extending in a common plane perpendicular to the body bore;
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- (vi) annular clamp surfaces formed on opposite axial extremities of the chuck body, the shoulder surfaces of the first and second jaw members projecting axially outwardly of the clamp surfaces for engaging the centering diameters of respective workpieces, the shoulder surfaces also extending axially inwardly of the clamp surfaces, and the first and second jaw members having clearance axially inwardly of respective ones the clamp surfaces for permitting facing contact between the clamp surfaces and the workpieces;
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- (b) first and second flange members having respective flange inside diameters for locating on the spindle, and respective flange faces formed perpendicular to the flange inside diameters, for axially clamping respective rotor workpieces against the first and second face planes when the flange members are axially clamped on the spindle toward the apposite ends of the chuck body with the rotor workpieces engaging corresponding first and second chuck jaws.
Dependencies are inferred from the claim text.