MECHANISM OF MOVEMENT OF MEASURING DEVICE Russian patent published in 1996 - IPC

FIELD: measurement technology. SUBSTANCE: mechanism is meant for movement of measuring transducer with simultaneous turn of measured part and with automatic transfer on to next measurement trajectory of each stroke of carriage with transducer. Output shaft of mechanism is kinematically coupled to safety clutch put on additional shaft and drum installed on its case in which helical groove cable is laid. Ends of cable are attached to carriage positioned on column for longitudinal movement and carrying rod with transducer. Midpoint of cable is mechanically fixed on drum. Mechanism of movement provides for simultaneous turn of measured part and movement of transducer. Drum is put on case of safety clutch with radial and axial clearances, driving pin is also placed into drum with clearance which enables turn of measured part through specified angle to be carried out without movement of transducer. Displacement of helical line of surface which coordinates are measured by transducer takes place. Displacement makes it possible to decrease distance between adjacent measurement points along vertical and to obtain more complete information on measured surface, to conduct measurement with upward and downward strokes of carriage. EFFECT: increased measurement precision. 11 dwg