Data processing: generic control systems or specific application – Specific application – apparatus or process – Mechanical control system
Reexamination Certificate
2005-09-27
2005-09-27
Rodriguez, Paul (Department: 2125)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Mechanical control system
C700S057000, C700S061000, C318S600000, C318S626000
Reexamination Certificate
active
06950726
ABSTRACT:
A numerical control apparatus for controlling a machine having two moving shafts placed in parallel and separate servomotors6and10for 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.
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International Search Report of PCT/JP02/00276 dated Apr. 23, 2002.
Mitsubishi Denki & Kabushiki Kaisha
Rodriguez Paul
Sughrue & Mion, PLLC
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