Index apparatus for a rotary table
AssigneeToyoda Koki Kabushiki Kaisha
InventorsKunihiko Eto, Tetsurou Yamakage, Kuniyuki Niwa
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Abstract
An index apparatus for a rotary table comprises first and second index plates connected to a driving motor. First and second switches are provided for generating first and second signals in cooperation with the first and second index plates each time the rotary table is rotated a unit angle. Third signal generating circuit is connected to the first and second switches for generating third signals, each of which is generated when the second signal is generated and disappears when the first signal disappears. Control circuit is provided for counting the number of the third signals to thereby stop the rotary table at a desired angular position when the number reaches to a preset number.
Claims6
An index apparatus for a rotary table comprising:
- a driving motor for rotating said rotary table;
- a first actuating member connected to and rotated by said driving motor;
- a first switch for generating a first signal when actuated by said first actuating member each time said rotary table is rotated a unit angle;
- a second actuating member connected to and rotated by said driving motor;
- a second switch for generating a second signal when actuated by said second actuating member each time said rotary table is rotated a unit angle;
- said first and second actuating members being so formed that said first signal is generated earlier and disappears later than said second signal;
- third signal generating means connected to said first and second switches for generating third signals each of which generated when said second signal is generated and disappears when said first signal disappears;
- and
- control means connected between said third signal generating means and said driving motor for counting the number of said third signals to thereby stop the rotation of said driving motor when the number of said third signals reaches to a predetermined number.
Dependencies are inferred from the claim text.