US 11,717,874 B2
Precision compensation mechanism of full-automatic bidirectional flanging machine
Fengyu Xu, Nanjing (CN); Sen Yang, Nanjing (CN); Jingjin Shen, Nanjing (CN); Zixin Chen, Nanjing (CN); and Guoping Jiang, Nanjing (CN)
Assigned to NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS, Nanjing (CN); and NANJNG NANYOU INSTITUTE OF INFORMATION TECHNOVATION CO., LTD, Nanjing (CN)
Filed by NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS, Nanjing (CN); and NANJNG NANYOU INSTITUTE OF INFORMATION TECHNOVATION CO., LTD, Nanjing (CN)
Filed on May 31, 2021, as Appl. No. 17/334,992.
Prior Publication US 2021/0283673 A1, Sep. 16, 2021
Int. Cl. B21D 37/20 (2006.01); B21D 5/00 (2006.01); B21D 5/02 (2006.01); B21D 43/00 (2006.01)
CPC B21D 37/20 (2013.01) [B21D 5/004 (2013.01); B21D 5/0209 (2013.01); B21D 43/003 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A precision compensation mechanism of a full-automatic bidirectional flanging machine, comprising:
an upper die X-direction fine adjustment assembly, an upper die Y-direction fine adjustment assembly, a lower die X-direction fine adjustment assembly and a lower die Y-direction fine adjustment assembly, wherein
the bidirectional flanging machine comprises a C-shaped flanging beam, an upper die and a lower die, wherein the upper die is mounted on an upper opening of the C-shaped flanging beam through several sets of fastening screws, and the lower die is mounted on a lower opening of the C-shaped flanging beam through several sets of fastening screws;
the upper die X-direction fine adjustment assembly can finely adjust the upper die along the X direction, and the upper die Y-direction fine adjustment assembly can finely adjust the upper die along the Y direction;
the lower die X-direction fine adjustment assembly can finely adjust the lower die along the X direction, and the lower die Y-direction fine adjustment assembly can finely adjust the lower die along the Y direction;
the upper die X-direction fine adjustment assembly, the upper die Y-direction fine adjustment assembly, the lower die X-direction fine adjustment assembly and the lower die Y-direction fine adjustment assembly each comprise N adjusting threaded sleeves, N adjusting screws and a threaded sleeve rotary actuator, wherein N>2;
the N adjusting threaded sleeves of the upper die X-direction fine adjustment assembly and the N adjusting threaded sleeves of the upper die Y-direction fine adjustment assembly are threaded into the upper opening of the C-shaped flanging beam, and the N adjusting threaded sleeves of the lower die X-direction fine adjustment assembly and the N adjusting threaded sleeves of the lower die Y-direction fine adjustment assembly are threaded into the lower opening of the C-shaped flanging beam;
the outer wall surfaces of the N adjusting threaded sleeves of the upper die X-direction fine adjustment assembly and the outer wall surfaces of the N adjusting threaded sleeves of the upper die Y-direction fine adjustment assembly are threaded into the upper opening of the C-shaped flanging beam, and the outer wall surfaces of the N adjusting threaded sleeves of the lower die X-direction fine adjustment assembly and the outer wall surfaces of the N adjusting threaded sleeves of the lower die Y-direction fine adjustment assembly are threaded into the lower opening of the C-shaped flanging beam to form N screw thread pairs I with an assumed thread pitch of P1;
each of the N adjusting threaded sleeves is threaded with one of said N adjusting screws, and the tip end of each adjusting screw is threaded into the upper die or the lower die; the outside wall surfaces of the N adjusting screws are threaded into inner wall surfaces of the N adjusting threaded sleeves and also connected to the upper die or the lower die to form N screw threaded pairs II with the assumed thread pitch of P2, and P1>P2;
the adjusting threaded sleeves for each fine adjusting assembly are configured to be rotated by the corresponding threaded sleeve rotary actuator, thereby finely adjusting the upper die or the lower die along the X direction and/or the Y direction.