Patents by Inventor Zongguo Xu

Zongguo Xu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Symmetrical three-axis parallel spindle head capable of multi-directional fixed-point rotation
    Patent number: 11813709
    Abstract: A symmetrical tri-axial parallel spindle head capable of multi-directional fixed-point rotation, comprising three branch chains (2), a moving base (5), and a fixed base (1). A machining spindle (6) is fixedly connected onto the moving base (5). Each of the branch chains (2) comprises a servo motor (22), a branch chain rod (21), a lead screw (23), and a guide nut (25). The lead screw (23) and a linear guide rail (24) are provided in an inner cavity on one end of the branch chain rod (21). One end of the lead screw (23) is connected to the servo motor (22), the lead screw (23) passes through the guide nut (25), and the other end of the lead screw (22) is connected to the branch chain rod (21) by means a rotating pair. The guide nut (25) is mounted on the linear guide rail (24) and is rotatably connected to the fixed base (1) through a first support disc (26). The other end of the branch chain rod (21) is rotatably connected to the moving base (5) through a second support disc (28).
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: November 14, 2023
    Assignee: YANSHAN UNIVERSITY
    Inventors: Ziming Chen, Kun Zhao, Wenjiang Yan, Xuechan Chen, Chen Zhao, Zongguo Xu, Haijiao Jia, Zixuan Liu
  • Symmetrical three-axis parallel spindle head capable of multi-directional fixed-point rotation
    Publication number: 20210220953
    Abstract: A symmetrical tri-axial parallel spindle head capable of multi-directional fixed-point rotation, comprising three branch chains (2), a moving base (5), and a fixed base (1). A machining spindle (6) is fixedly connected onto the moving base (5). Each of the branch chains (2) comprises a servo motor (22), a branch chain rod (21), a lead screw (23), and a guide nut (25). The lead screw (23) and a linear guide rail (24) are provided in an inner cavity on one end of the branch chain rod (21). One end of the lead screw (23) is connected to the servo motor (22), the lead screw (23) passes through the guide nut (25), and the other end of the lead screw (22) is connected to the branch chain rod (21) by means a rotating pair. The guide nut (25) is mounted on the linear guide rail (24) and is rotatably connected to the fixed base (1) through a first support disc (26). The other end of the branch chain rod (21) is rotatably connected to the moving base (5) through a second support disc (28).
    Type: Application
    Filed: March 3, 2021
    Publication date: July 22, 2021
    Inventors: Ziming Chen, Kun Zhao, Wenjiang Yan, Xuechan Chen, Chen Zhao, Zongguo Xu, Haijiao Jia, Zixuan Liu