Toyoda Koki Kabushiki Kaisha

Toyota Jidosha Kabushiki Kaisha

Tetsuo Matsuzaki

Shuhei Noro

Masayoshi Takagi

Katutoshi Naruse

Syouji Ikawa

Tuyoshi Tamesui

Yoshio Yoshioka

A transfer machine comprising a conveyor for conveying workpieces to stations and numerically controlled machine tools disposed at their respective stations. These machine tools are controlled by sequence controllers, which are connected with their respective numerical controllers. All the programs for machining operations are stored in each numerical controller. When some station is in trouble, the normal machine tool disposed at a station adjacent to the station in trouble is caused to execute the program originally assigned to the station in trouble, as well as the program assigned to the normal station itself.

Programmable transfer machine

An apparatus for controlling the timing for slowing down the feed of a grinding wheel on a grinding machine against work to enable the wheel to effect a finish cut on the work, in relation to a gradual reduction in the cutting performance of the wheel. The apparatus essentially comprises means for moving the grinding wheel reciprocally relative to the work at a variable speed; a device for measuring the diameter of the work at a plurality of different diametral positions thereof during each cycle of grinding operation and producing a corresponding number of signals each at one of those diametral positions; and an electric circuit adapted to cause the slowing down of the wheel feed upon receiving one of the signals except the last one from the measuring device, while comparing with a predetermined value the time elapsed or the number of pulses counted between receipt of the one signal and the last signal during one cycle of grinding operation and causing the slowing down of the wheel feed during another cycle of grinding operation upon receiving another signal that is produced earlier than the one signal if the above time or number of pulses is exceeded by the predetermined value.

Apparatus for controlling the operation of a grinding wheel

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Nishio, Japan

Tetsuo Matsuzaki