Device for controlling reversal points of a reciprocating machin

Details Device for controlling reversal points of a reciprocating machin Device for controlling reversal points of a reciprocating machin

1982-08-17

1985-03-12

Smith, Jerry

Boots, shoes, and leggings

364475, 364142, 408 8, 408 13, 318626, G06F 1546

Patent

active

045049173

ABSTRACT:
An electrical device for controlling the stroke length of a reciprocating tool carrier of a honing machine by controlling the stroke reversal points of the carrier includes a first compensating circuit for correcting deviations from a predetermined lower reversal point and a second compensating circuit for correcting deviations from a predetermined upper reversal point, the compensating circuits supplying respective reversal point signals to a comparator for comparison with a voltage representing the instantaneous position of the carrier along a stroke path. Each reversal-point signal is a sum of a reference signal, identifying an initial reversal point between the predetermined reversal points, and a composite signal formed as an algebraic combination of difference signals each representing the distance between the carrier and a predetermined reversal point (lower, in the case of the first compensating circuit, or upper, in the case of the second compensating circuit) upon motion reversal of the carrier during a respective reciprocation cycle thereof.

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patent: 4287460 (1981-09-01), Nozawa et al.
patent: 4345131 (1982-08-01), Semon et al.
patent: 4365300 (1982-12-01), Johanson et al.

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