The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 30, 2019
Filed:
Sep. 25, 2016
Pacific Precision Forging Co., Ltd., Taizhou, Jiangsu, CN;
Pacific Precision Powertrain Co., Ltd., Taizhou, Jiangsu, CN;
Hanguan Xia, Taizhou, CN;
Jun Qin, Taizhou, CN;
Hongjun Zhao, Taizhou, CN;
Yi Dong, Taizhou, CN;
Yong Zhang, Taizhou, CN;
PACIFIC PRECISION FORGING CO., LTD., Taizhou, CN;
PACIFIC PRECISION POWERTRAIN CO., LTD., Taizhou, CN;
Abstract
A checking tool for measuring a distance between adjacent sinking grooves in an inner hole of a mechanical part, including: a gage block, end cover, sliding piece, pin, base, pin seat, support, measuring rod, spring, barrel, and dial indicator. An inner end face of the base is provided with the sliding piece, at least three concentric circular arc grooves are on the end face, paired eccentric arc grooves are on the sliding piece, the pin connected to the pin seat runs through the base and sliding piece, which is axially limited by the end cover, and the seat rotates relative to the base to realize radial expansion displacement of the sliding piece. A measuring head is formed by the dial indicator, measuring rod, spring and barrel. By positioning the edges of adjacent sinking grooves in an inner hole, measurement for a distance between the grooves is converted into depth measurement.