公开(公告)号：US20240082966A1

公开(公告)日：2024-03-14

申请号：US18508333

申请日：2023-11-14

申请人： Jilin University

发明人： Chuanhai Chen ,  Zhifeng Liu ,  Jinyan Guo ,  Tongtong Jin ,  Xinyuan He ,  Shuo Zhao ,  Baobao Qi ,  Chunshi Liu ,  Zhaojun Yang ,  Zhijie Li ,  Chunlei Hua ,  Liang Zhang ,  Haoming Yan

IPC分类号： B23Q1/62 ,  G05B6/02 ,  H02P21/13

CPC分类号： B23Q1/621 ,  G05B6/02 ,  H02P21/13 ,  H02P2207/05

摘要： A cross-coupling control method for moving beam of gantry machine tool is disclosed, which relates to the technical field of CNC machine tool control. The cross-coupling control method includes: Step 1: establishing a crossbeam dynamics model considering a ram on the crossbeam, and at the same time simplifying the model for an observer design; step 2: realizing a PID control parameter adjustment of motors at both ends in accordance with a method of parameter tuning of a unilateral servo control system; using a servo system with the same control parameters to jointly drive the crossbeam up and down, realizing the synchronous control and realizing PID control parameter tuning for both end motors. The disclosure not only reduces the synchronization error caused by the torsion of the crossbeam, but also solves the synchronization error caused by the asymmetric load on both sides, and improves the system robustness and stability.

公开(公告)号：US20230347465A1

公开(公告)日：2023-11-02

申请号：US18346876

申请日：2023-07-05

申请人： Jilin University

发明人： Chuanhai Chen ,  Zhifeng Liu ,  Jingyan Guo ,  Shang Chen ,  Tongtong Jin ,  Baobao Qi ,  Zhaojun Yang ,  Junqi Long ,  Zhijie Li ,  Chunlei Hua ,  Liang Zhang ,  Haoming Yan

IPC分类号： B23Q41/08

CPC分类号： B23Q41/08 ,  B23Q2210/00

摘要： An unloading device and an unloading method for a gantry-type machining center beam guide rail is disclosed, which is used to be installed on a sliding plate assembly, comprising a first booster mechanism and a second booster mechanism. When a worm rotates and drives a worm gear to rotate, an axial displacement can be generated by the worm gear along a worm gear shaft to push the retaining sleeve assembly, and an unloading force generated acts on a first mounting bracket. An unloading bolt of the second booster mechanism is connected with a press plate through threads, the unloading bolt is rotated to generate an axial displacement, and a second sliding block is pressed tightly against an unloading guide rail vertical surface by a second mounting bracket to generate an unloading force.