Patent ID: 11890661
Assignee: HEFEI UNIVERSITY OF TECHNOLOGY
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 12:
13. The device of claim 9, wherein the controller is configured to:
obtain the contour characteristic of the workpiece to be stamped;
divide the blank holder of the stamping device into s areas in a circumferential direction based on the contour characteristic of the workpiece to be stamped, where s is an integer greater than 1;
for an ith area, where i∈{1, 2, . . . , s), divide the ith area into ki blank holder areas in a radial direction based on a width of a flange area corresponding to the sheet material and a thread parameter of a pressure sensor, where ki is an integer greater than or equal to 1, each blank holder area corresponds to a pressure sensor and a blank holder block, and the pressure sensor is connected to the blank holder block by threads; and
control the blank holder force dynamically for each blank holder area to stamp the sheet material, so as to obtain the workpiece to be stamped.