Publication number: 20180188014
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.
Type:
Application
Filed:
September 25, 2016
Publication date:
July 5, 2018
Applicants:
PACIFIC PRECISION FORGING CO., LTD., PACIFIC PRECISION POWERTRAIN CO., LTD.
Inventors:
Hanguan XIA, Jun QIN, Hongjun ZHAO, Yi DONG, Yong ZHANG
Publication number: 20110030443
Abstract: A double closed hydraulic mould stand is provided, which includes an up bottom plate (1), a down bottom plate (21), an up mould plate (8), a down mould plate (20), four guide sleeves (42), four guide columns (45), and a four mechanical linkage velocity ratio mechanism. The four guide sleeves (42) and the four guide columns (45) are distributed symmetrically and slidingly fit each other. An up piston cylinder, a down piston cylinder, an up bed piece (11), a down bed piece (31), an up concave mould seat (15), a down concave mould seat, an up concave mould (16), and a down concave mould (33) are fixed at the up bottom plate and the down bottom plate. An up pin-lift (3), a down pin-lift (24), an up punch pin seat (4), a down punch pin seat (22), an up punch pin (38), and a down punch pin (36) form an up piston and a down piston respectively. The up piston cylinder and the down piston cylinder have a split combined structure, which is convenient for manufacturing, installation, and maintenance.
Type:
Application
Filed:
March 30, 2009
Publication date:
February 10, 2011
Applicants:
JIANSU PACIFIC PRECISION FORGING CO., LTD., HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventors:
Hanguan Xia, Juchen Xia, Guoan Hu, Xinyun Wang, Junsong Jin, Yi Dong