3909922 is referenced by 25 patents and cites 2 patents.

A control system for plural numerically controlled machine tools comprising a main conveyor and a buffer conveyor for transferring a plurality of work pallets accorded with coded numbers. The buffer conveyor has a plurality of buffer areas. A plurality of machining modules classified by machining processes are arranged in association with buffer areas of the buffer conveyor. A plurality of rails arranged above the machining modules extend transversely of the main and buffer conveyors with a pallet transfer device suspended by each rail for selectively transferring the work pallets into its associated buffer area and main conveyor and for selectively transferring the work pallets from the associated buffer area into the associated machining module in response to the coded numbers on the work pallets. At least one of the machining modules includes not less than two numerically controlled machine tools performing the same function arranged along the rail. A central control device is provided for transmitting information to each numerically controlled machine tool in accordance with the coded number of the work pallet transferred in the machine tool.

Control system for plural numerically controlled machine tools
Application Number
Publication Number
Application Date
July 23, 1973
Publication Date
October 7, 1975
Hayashi Takehiko
Shima Yoshio
Takasaki Akira
Oblon Fisher Spivak McClelland & Maier
Toyoda Koki Kabushiki Kaisha
B23Q 41/02
G05B 19/418
B23Q 41/00
B23Q 41/06
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