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US 6,950,726 B2Granted
Method and device for numerical control return to origin of a master and slave shaft
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorYuuji Mizukami
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AssigneeMitsubishi Denki Kabushiki Kaisha
InventorYuuji Mizukami
Estimating the term…
A numerical control apparatus for controlling a machine having two moving shafts placed in parallel and separate servomotors 6 and 10 for driving one of the shafts as a master shaft and the other as a slave shaft in the same direction and performing return to origin of the above-mentioned master shaft and the slave shaft according to a dog technique. The numerical control apparatus comprises position determination module determining the positional relationship as to whether or not the master shaft is ahead of the slave shaft, and return-to-origin management module performing return to origin of the master shaft and the slave shaft with one dog based on the determined positional relationship, so that the return to origin of the master shaft and the slave shaft can be performed with one dog. Moreover, the return to origin can be performed reliably at parallel positions.
A numerical control method for controlling a machine having two moving shafts placed in parallel and separate servomotors each driving one of the two shafts, the method comprising:
A numerical control apparatus for controlling a machine having two moving shafts placed in parallel and separate servomotors, each driving one of the two shafts, where the two shafts are driven in same direction and one of the two shafts is a master shaft and the other is a slave shaft, and the numeric control apparatus performs a return to an origin of the master shaft and the slave shaft according to a dog technique, the numerical control apparatus comprising:
Dependencies are inferred from the claim text.