Prototype Automated Equipment to Perform Poising and Beat Rate Operations on the M577 MTSQ Fuze.
Final technical rept. 23 Mar 77-30 Sep 78,
BULOVA SYSTEMS AND INSTRUMENTS CORP VALLEY STREAM N Y
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This report summarizes the design and development of two automatic process control machines for the M577 MTSQ Fuze. The work was performed under contract DAAA21-76-C-0157, U.S. Army ARRADCOM, DOVER, N.J. from 23 March 1977 through 30 September 1978. This followed an initial feasibility demonstration phase from 4 March 1976 to 4 October 1976. The two machines developed are the Automatic Regulation Machine which sets the M577 Fuze Timer beat rate and the Automatic Poising Machine which dynamically balances the Timer balance wheel assemblies. The basic design concepts established during the Engineering Study Feasibility Phase provided the primary design parameters for this equipment. The feasibility model of the Automatic Regulation Fixture is shown in Figure 1. Regulation of the Timer Assembly is accomplished by shortening the Hairspring length using successive, progressive ultrasonic welds to the hypodermic tube projecting from the End Support. To regulate in this manner the timer beat frequency established by the initial weld has to be approximately 1.0 beat per second slow. The production Automatic Regulation Machine Figure 2, consists of a manually loaded fixture, a precision servo table, an ultrasonic welder and a Hewlett Packard 9825 computer control. The Timer beat frequency is monitored continuously and the Timer is powered by its Mainspring. Process control data can be printed out at the machine or batched to a central site. Included as auxiliary equipment are an oscilloscope and a visicorder which provide additional process information and aid in trouble shooting.
- Manufacturing and Industrial Engineering and Control of Production Systems
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