公开(公告)号：US20240338004A1

公开(公告)日：2024-10-10

申请号：US18537413

申请日：2023-12-12

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Yuwen SUN ,  Xiaolong YIN ,  Hang GAO ,  Jinting XU

IPC: G05B19/39 ,  G05B19/23 ,  G05B19/29

CPC classification number: G05B19/39 ,  G05B19/23 ,  G05B19/29

Abstract: The present invention provides an on-machine real-time measurement method and system for a full-closed loop five-axis computer numerical control machine tool. In the system, a high-precision coaxial fixture in a displacement measurement component is used for connecting the component with the machine tool spindle; a multifunctional evaluation electronics box reads the signals of the grating scale of each machine axis in real time, and synchronously triggers the displacement sensor to collect the measured workpiece surface information; a synchronous communication module caches the grating scale signals of each machine axis and the measurement signals of the sensor to the FIFO rotation buffering module of the host computer in parallel to reduce the burden of high-speed transmission; and the host computer performs data processing and coordinate transformation of the grating scale data and the measurement information in the FIFO module, and finally obtains the three-dimensional geometric information of the measured workpiece surface.

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.