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US 4,924,842 AGranted
Optimization method and apparatus for dressing a grinding wheel
AssigneeNational Broach & Machine Company
InventorsSuren B. Rao, Richard W. Schwartz
Life of this patent
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AssigneeNational Broach & Machine Company
InventorsSuren B. Rao, Richard W. Schwartz
Estimating the term…
An optimization method of dressing a predetermined profile on the periphery of a grinding wheel of the type used in form grinding. A dresser is guided along a path corresponding to the predetermined grinding wheel profile in successive, identical cycles of motion. The grinding wheel is fed into the path in increments between cycles. The dresser contacts the periphery of the grinding wheel during movement along its path, with the duration of contact increasing in each cycle until the predetermined profile is produced. The duration of contact during each cycle is monitored. When the difference between the duration of contact in a given cycle and the duration of contact in the previous cycle is zero or negligible, dressing is complete. Apparatus for practicing the method is also disclosed.
Apparatus for dressing a grinding wheel to produce or restore a predetermined profile on the periphery thereof, comprising a dresser, means for relatively guiding said dresser and said wheel along a path corresponding to said predetermined profile successively in identical cycles of motion, means for relatively moving said dresser and grinding wheel transversely of said path in increments between cycles causing said dresser to contact the periphery of said grinding wheel during such movement along said path and the duration of contact to increase with each cycle until said predetermined profile is produced on the periphery of said grinding wheel, and an optimization control system comprising means for determining the duration of contact during each cycle, and means for comparing the duration of contact in successive cycles to ascertain when the difference is minimal and the dressing operation may be discontinued.
An optimization method of dressing a grinding wheel to produce a predetermined profile on the periphery thereof, including the steps of relatively guiding said grinding wheel and a dresser along a path corresponding to said predetermined profile successively in identical cycles of motion, relatively moving said dresser and grinding wheel transversely of said path in increments between cycles causing the dresser to contact the periphery of said grinding wheel during its movement along said path and the duration of contact to increase with each cycle until said predetermined profile is produced on the periphery of said grinding wheel, monitoring the duration of contact during each cycle, comparing the duration of contact in each cycle with the duration of contact in the preceding cycle, continuing such relative movement of said dresser and grinding wheel between cycles until the difference in contact time in a given cycle and the contact time in the preceding cycle is negligible and thereupon discontinuing the dressing operation.
An optimization system for controlling a grinding wheel dressing apparatus, said system comprising means for determining the duration of contact between a grinding wheel and a dresser of the apparatus during successive cycles of guided movement between the wheel and the dresser, and means for comparing the duration of contact of successive cycles to ascertain when the difference is minimal to discontinue the dressing operation.
Dependencies are inferred from the claim text.