公开(公告)号：US20250073856A1

公开(公告)日：2025-03-06

申请号：US18563542

申请日：2023-02-03

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Yuwen SUN ,  Shuyang YAN ,  Shutao QI

IPC: B25B11/00

Abstract: The present invention discloses a clamping system and an adaptive clamping method for turning of thin-walled curved components. A curved component is positioned and clamped on the upper surface of the vacuum adsorption fixture, and a rubber sealing ring on an auxiliary support of the fixture is in contact with the inner contour of the curved surface to separate the closed space in the component into three independent adsorption force action areas: a flange end surface, a first vacuum chamber and a second vacuum chamber; and three independent vacuum channels are arranged in the fixture, the vacuum channels are communicated with sub-circuits through pneumatic hoses, and the on-off of the circuits is controlled by electromagnetic directional valves. The vacuum adsorption clamping system with multiple clamping modes can be adaptively adjusted according to the process stage of curved components.

公开(公告)号：US20230405749A1

公开(公告)日：2023-12-21

申请号：US18308248

申请日：2023-04-27

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Yuwen SUN ,  Shuyang YAN ,  Shutao QI ,  Jinting XU

IPC: B23Q11/10 ,  B23B1/00

CPC classification number: B23Q11/1038 ,  B23B1/00 ,  B23B2250/12

Abstract: For an internal cooling system for precision turning and a control method thereof, internal cooling channels are machined in turning tool, and internal cooling sleeves are used to realize the communication between each hydraulic branch circuit and internal cooling channels of turning tool; a tool contact area calculation model is established to master the change rule of the contact state in whole-domain turning process of a curved surface component; the temperature and flow rate of a cooling medium at a liquid outlet of an air-cooled water cooler are set according to the material property and cutting conditions of the curved surface component; an electromagnetic control circuit is used to control the on-off of electromagnetic directional valves, so as to adjust the conduction sequence and action time of each hydraulic branch circuit, and further realize the localized, directional and accurate cooling of a curved surface component cutting tool.

公开(公告)号：US20230286091A1

公开(公告)日：2023-09-14

申请号：US17921480

申请日：2021-10-13

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Yuwen SUN ,  Shuyang YAN ,  Shutao QI ,  Jinting XU

IPC: B23Q3/06 ,  B23B25/06 ,  B23Q3/08

CPC classification number: B23Q3/065 ,  B23B25/06 ,  B23Q3/084

Abstract: The present invention discloses a flexible dot matrix bonding apparatus and an adaptive clamping method for a disk-type planar component. The apparatus mainly comprises three components: a substrate, connecting rods and an auxiliary support. The threaded holes in a circumferential array are uniformly distributed in the substrate, and the connecting rods are fixed at different circumferential positions of the substrate in a threaded connection manner, which play a role in bonding and supporting the disk-type planar component. The auxiliary support is matched with the substrate, so that a workpiece after turning can be taken out without damage. According to detection results of machining deformation of the disk-type planar component, the installation positions of the connecting rods on the substrate are adjusted accordingly, thus changing bonding positions of the disk-type planar component. Finally, an adaptive clamping method aiming at reducing the machining deformation of the disk-type planar component is formed.