Design on a kind of new typed automatic inspection mechanical device for ring-mounted pistons;

The extension mod- els of the extension theory provide a laconic and canonical approach for the mechanical device representation.

The testing machine contains mainly three parts of electric control,data collection and mechanical device.

The thesis elaborates the development of brass instruments in four parts, It pays attention on the inchoation, transmutation and development of machinery on brass instruments.

In this paper,the authors presented the design idea and method of a quick open shut mechanism,analyzed the motional and dynamic relation on which the mechanism is designed and manufactured.