Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1978-07-26
1980-02-26
Braun, Leslie
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74813C, 74816, 74817, 74826, B23B 2924, B23Q 1700
Patent
active
041899636
ABSTRACT:
An index apparatus for indexing a rotary table rotatably and vertically slidably received within a base, comprises a pair of coupling members secured to the rotary table and the base, respectively, and engageable with each other. The rotary table is lifted and lowered by a hydraulic actuator. The rotary table is rotated by a drive means including a drive motor. Generating means are provided to generate a signal each time the rotary table is rotated a unit angle. Control means are provided to reduce the rotational speed of the rotary table in response to the number of signals generated from the generating means, when the rotary table is rotated to a position spaced a predetermined angular distance from a desired angular position thereof. Control means also cause the rotation of the rotary table to stop in response to the number of signals from the generating means, when the rotary table is rotated to the desired angular position thereof.
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patent: 3888140 (1975-06-01), Mackelvie
patent: 3903758 (1975-09-01), Keickel
patent: 3965775 (1976-06-01), Pinkesfeld
Haga Kyosuke
Sano Yoshikazu
Yoshioka Kengo
Braun Leslie
Toyoda-Koki Kabushiki-Kaisha
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