Automatic gear checking structure and method
AssigneeLear Siegler, Inc.
InventorDonald A. Misson
Life of this patent
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Abstract
Structure for and a method of automatically gaging gears including structure for and the method of rotating a master gear and a work gear in tight mesh for a single revolution of the work gear sensing parameters of the gears in tight mesh including the angular position of a master gear and work gear in rotation about their axis of generation, center to center distance between the master gear and work gear and the angular deviation of the axis of rotation of the master gear in mesh with the work gear from its position with the gears unmeshed, developing electrical signals representative of the parameters sensed, and checking the shape of the work gear as a function of the electric signals developed.
Claims23
Gear checking structure comprising means for placing a master gear and a gear to be checked in tight mesh means operably associated with at least one of the gears for positively rotating the one gear, means operably associated with the meshed gears for sensing a plurality of operating parameters of the gears generated on rotation of the gears in tight mesh at least one of which is angular position of one of the gears about its axis of rotation and means connected to the means for sensing the parameters for determining deviation of the shape of the work gear from the desired shape of the work gear in accordance with the generated parameters including at least the angular position of the one of the gears about its axis of rotation.
Structure for automatically gaging gears comprising means for supporting a master gear for rotation about the axis of generation thereof and for permitting biased movement of the master gear in one radial direction and for permitting biased angular movement of the master gear on the axis of generation thereof, means positioned adjacent the means for supporting the master gear for feeding a work gear into engagement with the rotatably supported master gear, means operably associated with the means for feeding a work gear into engagement with the master gear for rotatably supporting the work gear in tight mesh with the master gear for at least one full revolution of the work gear means operably associated with the means for rotatably supporting the work gear for directing the work gear away from the master gear, means for separately sensing the angular position of rotation of the master gear operably associated with the master gear, the angular position of rotation of the work gear operably associated with the work gear, the center to center distance between the master gear and work gear operably associated with the master gear and the angular rotation of the axis of generation of the master gear operably associated with the master gear, with the master gear and work gear in tight mesh and means connected to the means for sensing the angular position of the gears, the center to center distance between gears and the angular rotation of the axis of generation of the master gear for determining deviations in the shape of the work gear in accordance therewith and for providing control signals in accordance with the deviation of the shape of the work gear from a desired shape thereof.
A method of automatic gear checking comprising driving a master gear in tight mesh with a work gear, sensing a plurality of parameters of the work gear in tight mesh with the master gear at least one of which is angular position of one of the gears about its axis of rotation and determining the deviation of the shape of the work gear from a desired shape thereof in accordance with the parameters sensed including at least the angular position of one of the gears about its axis of rotation.
Dependencies are inferred from the claim text.