METHOD FOR DETECTING PHASE OF GEAR

PROBLEM TO BE SOLVED: To detect the phase of a gear without depending on a worker's visual inspection. SOLUTION: Laser beams are applied from a laser sensor 76 while a gear where a detection mark is projected or recessed on a side surface is rotated, thus obtaining data waveform for expressing...

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Bibliographic Details
Main Authors YASUMOTO HACHIZO, KITAMURA YOSHIMICHI, SAKAI HIDEKI, KINO YOSHITAKA, OSHIRO RIKIYA, MIKI SEIJI
Format Patent
LanguageEnglish
Published 26.08.1997
Edition6
Subjects
CASTING
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
MEASURING
MEASURING ANGLES
MEASURING AREAS
MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS
PERFORMING OPERATIONS
PHYSICS
POWDER METALLURGY
TESTING
TRANSPORTING
WORKING METALLIC POWDER
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Summary:PROBLEM TO BE SOLVED: To detect the phase of a gear without depending on a worker's visual inspection. SOLUTION: Laser beams are applied from a laser sensor 76 while a gear where a detection mark is projected or recessed on a side surface is rotated, thus obtaining data waveform for expressing the time change of the amount of recessed and projection on the side surface of the gear. Height data corresponding to the height of the above detection mark and width data corresponding to the width of the above mark are extracted from data waveform obtained by filtering the above data waveform by a waveform processing part 26 and the height data and the width data are compared with a reference value by a CPU 29 and the waveform of the above detection mark is identified, thus detecting the position of the detection mark of the gear, namely the phase of the gear.
Bibliography:Application Number: JP19960030377