Abstract: The invention provides a workpiece balancing and correction apparatus having separate modular stations. A measurement station provides balance measurement and correction auditing functions. A correction station provides material weight correction in one or two planes. A transfer module is designed to transport workpieces between the measurement module and the correction module and maintain the cycle speed of operation of the overall machine in keeping with constant activity at the slowest module.

Abstract: The invention provides an improved unbalance measuring machine wherein the drive member for imparting rotational forces to the workpiece has two distinct positions of engagement with the workpiece. A first position is used to maintain minimal contact with the workpiece and maintain a steady-state rotation of the workpiece. A second position is used to impart additional rotational forces to the workpiece for the purposes of accelerating, decelerating and indexing the workpiece.

Abstract: A workpiece support tool is disclosed for use with in providing an infinite variety of positions to receive and engage workpieces of differing shapes and sizes. The workpiece support tool provides precise support and positioning of the workpiece with respect to an operational centerline. The support tool includes a plurality of radially moving jaw members having support surfaces for supporting the inner circumference of the workpiece. The jaw members are expanded and contracted in solely radial movement through driving forces imparted by a position encoded servo drive motor.

Abstract: A tire balance audit apparatus with an improved tire support tool is disclosed. The tire support tool utilizes a plurality of jaw members, each driven radially by a ball screw, to engage, center and level an unbalanced tire about the centerline of an unbalance measuring device. The tire is supported solely through engagement of the bead of the tire with the individual jaw members.

Abstract: An improved workpiece support tool is disclosed for use with a variety of workpieces. The support tool provides precise support and positioning of the workpiece with respect to an operational centerline during the balancing operation. The support tool includes a plurality of radially moving jaw members which are driven by an inverted cone-shaped drive member. The inverted cone-shaped drive member is moved along the axis of the support tool through driving forces imparted by a servo drive motor.

Abstract: A driveshaft rebuilding machine for installing an end piece on a driveshaft tube is disclosed. Self-centering clamps engage and center the tube and maintain radial positioning of the tube. A fixture mounts an end piece in precise alignment with the tube. A cylinder ram extends to press-fit the end piece on the tube. During pressing, the clamps and tube are free to move longitudinally as a unit until reaching a stop position but are prevented from moving radially.