公开(公告)号：US20230250501A1

公开(公告)日：2023-08-10

申请号：US18015503

申请日：2020-09-30

Applicant: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY ,  AVIC MANUFACTURING TECHNOLOGY INSTITUTE

Inventor： Xiancheng ZHANG ,  Zhiqiang LI ,  Shuang LIU ,  Xiaoning HAN ,  Shulei YAO ,  Congyang GONG ,  Lin ZHU ,  Kaiming ZHANG ,  Shantung TU

IPC: C21D7/04 ,  C22F3/00

CPC classification number: C21D7/04 ,  C22F3/00

Abstract: The application relates to a robot machining system and control method for ultrasonic surface rolling process of an aircraft engine blade. The robot machining system includes: a robot, to which an ultrasonic surface rolling process device is fixed, the robot drives the ultrasonic surface rolling process device to move; a base provided with a spindle turntable and a three-dimensional mobile lifting device, the spindle turntable being provided with a rotatable blade clamp, and a flexible follow-up support head being fixed to the three-dimensional mobile lifting device; and a control system, which is in electrical connection or communication connection with the robot, the spindle turntable and the three-dimensional mobile lifting device, respectively. According to the application, the robot assists in clamping ultrasonic rolling device and cooperates with the three-dimensional mobile lifting device and the flexible follow-up support head, such that the accurate ultrasonic surface rolling process of blade is realized.

公开(公告)号：US20220324067A1

公开(公告)日：2022-10-13

申请号：US17764136

申请日：2020-05-20

Applicant: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Xiancheng ZHANG ,  Kaiming ZHANG ,  Shulei YAO ,  Shuang LIU ,  Feng CHENG ,  Shantung TU

IPC: B23P9/02

Abstract: Provided is a bilateral ultrasonic rolling processing track coordination method for a blade surface, the method comprising: step S1, performing layering processing on a blade to acquire a contour curve of “A”-shaped and “n”-shaped blade edges of a blade model at different heights; step S2: determining the endpoints of a blade processing track; and step S3: planning the thickness and the rotation angle of the blade, comprising: step S31, solving a main direction angle αmain of the contour curve; step S32, solving the thickness d of the blade; step S33, solving a rotation angle required by blade processing when the blade edge is “A”-shaped; and step S34, solving the rotation angle required by blade processing when the blade edge is “n”-shaped. According to the method, blade deformation generated by an ultrasonic rolling force is reduced, the processing efficiency is improved, and the blade processing precision is also improved.