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1. (WO2018201337) IN-SITU SYSTEM FOR MEASURING SHAPE ERROR IN LARGE RING SURFACE

Pub. No.:    WO/2018/201337    International Application No.:    PCT/CN2017/082889
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Thu May 04 01:59:59 CEST 2017
IPC: G01B 21/20
Applicants: DALIAN UNIVERSITY OF TECHNOLOGY
大连理工大学
Inventors: SUN, Qingchao
孙清超
WANG, Jue
王珏
LIU, Xin
刘鑫
SUN, Wei
孙伟
JIANG, Yingjie
姜英杰
SUO, Jiaqi
索嘉琪
Title: IN-SITU SYSTEM FOR MEASURING SHAPE ERROR IN LARGE RING SURFACE
Abstract:
An in-situ system for measuring a shape error in a large ring surface comprises an orientation adjustment portion, a rotating portion, and a measurement portion. The orientation adjustment portion comprises an orientation adjustment platform (5), an orientation adjustment platform motor (4) and a connection plate (6). The orientation adjustment platform (5) can adjust a rotation angle thereof with respect to a z axis and an x axis, and adjustment of angles thereof is controlled by the orientation adjustment platform motor (4). The orientation adjustment portion and the rotating portion are connected by means of the connection plate (6). The rotating portion comprises a rotating indexed disk base (7) and a high precision rotating indexed disk (1). When the rotating indexed disk (1) is to be rotated, the rotating indexed disk (1) is loosened by means of a wrench (11), and then manually rotated to a desired angle. Afterwards, the wrench (11) is pulled backwards for fixation. The measurement portion comprises a sensor clamp (10), a sensor holder (9), and a touch sensor (8). The sensor clamp (10) is positioned by means of a mandrel and the rotating indexed disk (1), and is fixed by means of two pairs of bolts and nuts (2). A total of four sets of sensor receptacles are arranged at the sensor clamp (10). Each set of sensor receptacles includes at least three receptacles. Each sensor receptacle receives one sensor holder (9) for fixing the sensor (8).