公开(公告)号：US11969846B2

公开(公告)日：2024-04-30

申请号：US17785657

申请日：2021-11-17

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Haibo Liu ,  Chengxin Wang ,  Yongqing Wang ,  Xu Li ,  Kuo Liu ,  Xiaofei Ma ,  Dongming Guo

IPC: B23Q3/08 ,  B23Q3/06

CPC classification number: B23Q3/086 ,  B23Q3/065 ,  B23Q2703/10

Abstract: The present invention proposes an in-situ freezing machining method for an integrated thin-walled array structure. In the method, the area among cups is cut off first; then, the outer walls of a cup array are machined; and finally, water filling and freezing are carried out, and in-situ freezing machining of the inner walls of the cup array is carried out. Then, hoisting and turning over are carried out, and the area among cavities is cut off; then, the outer walls of a cavity array are machined; and finally, water filling and freezing are carried out, and in-situ freezing machining of the inner walls of the cavity array is carried out. The method realizes in-situ freezing clamping of workpieces, avoids error accumulation caused by repeated installation of a fixture, and can refrigerate efficiently, suppress ambient and cutting thermal interference, and ensure the stability of freezing fixture.