Instrument for measuring degree of symmetry of key slot in hole

The invention discloses an instrument for measuring the degree of symmetry of a key slot in a hole, and the measuring instrument is assembled by a detecting head component, a slide bar body component, a measuring body component and a centering rod component; and a universal digital display device or...

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Bibliographic Details
Main Authors ZUO XIAOMING, WANG WENZHI
Format Patent
LanguageChinese
English
Published 16.02.2011
Subjects
MEASURING
MEASURING ANGLES
MEASURING AREAS
MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS
PHYSICS
TESTING
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Summary:The invention discloses an instrument for measuring the degree of symmetry of a key slot in a hole, and the measuring instrument is assembled by a detecting head component, a slide bar body component, a measuring body component and a centering rod component; and a universal digital display device or a dial indicator is used as a display module for measured value, and the degree of symmetry and the parallelism error of the key slot in the hole on the pore diameter of a cylinder and the pore diameter of a cone are directly measured and displayed, thereby making up for the blank in measuring tools for directly measuring and reading the position of the key slot on the pore diameter of the cylinder and the pore diameter of the cone.
Bibliography:Application Number: CN20101504014