Fixing device and fixing method for detection of cylindrical parts

• Main Authors: LEI TIANCAI, WANG TAO, ZHU YUANQING, SUN YUFEI, JIANG JIADONG, YANG LINLIN, YANG WEICHUAN, MENG YUTANG, ZHONG WENYONG, TAN JUN
• Format: Patent
• Language: Chinese; English
• Published: 05.11.2021
• Subjects: HAND TOOLS; MANIPULATORS; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PERFORMING OPERATIONS; PHYSICS; PORTABLE POWER-DRIVEN TOOLS; TESTING; TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING; TRANSPORTING

The invention discloses a fixing device and a fixing method for detection of cylindrical parts. The surface quality problems of indentations, scratches and the like easily generated on the surfaces of the parts due to the fact that an existing fixing device for the cylindrical parts mostly adopts a clamping mode are solved. The fixing device comprises a hollow base, a plurality of positioning parts are arranged on the surface of the base and matched with inner holes of cylindrical parts, vent holes communicated with an inner cavity of the base are formed in the positioning parts, placement grooves used for installing flexible sealing pieces are further formed in the positioning parts, and in the working state, the flexible sealing pieces abut against the inner holes. On the axis projection of the inner hole, the contact points of the flexible sealing pieces and the inner holes form a closed curve, the inner holes are communicated with an inner cavity of the base through a vent hole, the inner cavity of the ba