Apparatus for high tolerance brush honing

  • US 6,669,531 B1
  • Filed: 04/06/2001
  • Issued: 12/30/2003
  • Est. Priority Date: 10/28/1999
  • Status: Expired due to Term
First Claim
Patent Images

1. An apparatus for honing at least one edge on a workpiece, comprising:

  • a base;

    a motor mounted to the base;

    an abrasive brush mounted to the motor, the abrasive brush being formed of a plurality of bristles attached to a hub, the bristles each having a tip and an interior end fixed to the hub, the motor adapted to cause the abrasive brush to rotate about an axis of rotation, the abrasive brush having a first end and a second end, and a volume defined by a cylindrical shape extending between said first and second ends with a surface defined by the tips of the bristles, and a radius defined as the distance from the axis of rotation to the tips of the bristles;

    a controller for controlling the rotational speed of the brush;

    a mount for holding a workpiece, the mount attached to the base, the mount including a fixture for engaging the workpiece to the mount, the fixture mounted to a rotatable base, the mount further including a translational movement mechanism adapted to translate the workpiece along a path substantially parallel to the axis of rotation of the abrasive brush;

    a depth positioning mechanism for controlling the radial distance between the workpiece edge and the axis of rotation of the abrasive brush, the depth positioning mechanism controlling radial movement of the abrasive brush relative to the workpiece edge; and

    an orientation mechanism for orienting the workpiece edge relative to the abrasive brush, the orientation mechanism including a positioning motor engaged with the rotatable base for rotating the fixture on the translational movement mechanism relative to the brush.

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