A high-precision encoder

Abstract

The utility model provides a kind of high-precision encoder, including plastic base, its top surface has the installation cavity of subsidence;Metal CC elastic sheet, contour adaptation is attached to base top surface, and is shaped with elastic positioning bump;Metal shaft sleeve, cover in CC elastic sheet top surface, and with the fixed claw of base between through side wall is mutually fixed;CC elastic sheet has at least two interval distribution's positioning hole, shaft sleeve is then downward stamping and forms the positioning column with the diameter adaptation of positioning hole, and base correspondingly is equipped with the recessed hole with the diameter adaptation of positioning column;Positioning column passes through positioning hole and inserts recessed hole, to make CC elastic sheet positioning.In metal shaft sleeve, downward stamping and form positioning column, and positioning is carried out by metal positioning hole on CC elastic sheet with metal positioning column cooperation, and positioning column size is reliable and does not deform, and is not affected by assembly, so it can solve the problem of precision reduction caused by original CC elastic sheet slight deflection;And the structure of product has not become complex, and cost has not obviously increased.

Images