Patents by Inventor Dingfeng XU

Dingfeng 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).

  • Patent number: 12053879
    Abstract: The present invention provides a chain plate flexible finger including a chain plate framework, a pneumatic elastic bellows artificial muscle, and a plastic annular frame. The axial expansion of the elastic bellows artificial muscle is restricted by the chain plate framework to overcome the elastic force of a tension spring to bend, to generate conformal contact between one or more chain plates and an object to be gripped and generate a contact force for a gripping state. With the control of a high-speed on-off valve, the air pressure in an inner cavity of the elastic bellows artificial muscle is accurately controlled to vertically or horizontally grip a cylindrical object, a cuboid object, a spherical object or an ellipsoid object. The flexible finger has adequate flexible adaptability and a simple structure, and is reliable to use, and adapts to differently shaped objects to be gripped and vertically and transversely placed objects.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: August 6, 2024
    Assignee: JIANGNAN UNIVERSITY
    Inventors: Jun Zhang, Qiang Wang, Dingfeng Xu, Zhengning Tang, Bing Lv
  • Publication number: 20210347063
    Abstract: The present invention provides a chain plate flexible finger including a chain plate framework, a pneumatic elastic bellows artificial muscle, and a plastic annular frame. The axial expansion of the elastic bellows artificial muscle is restricted by the chain plate framework to overcome the elastic force of a tension spring to bend, to generate conformal contact between one or more chain plates and an object to be gripped and generate a contact force for a gripping state. With the control of a high-speed on-off valve, the air pressure in an inner cavity of the elastic bellows artificial muscle is accurately controlled to vertically or horizontally grip a cylindrical object, a cuboid object, a spherical object or an ellipsoid object. The flexible finger has adequate flexible adaptability and a simple structure, and is reliable to use, and adapts to differently shaped objects to be gripped and vertically and transversely placed objects.
    Type: Application
    Filed: September 4, 2019
    Publication date: November 11, 2021
    Inventors: Jun ZHANG, Qiang WANG, Dingfeng XU, Zhengning TANG, Bing LV
  • Patent number: 11000957
    Abstract: The disclosure relates to a mechanical hand of a dual-driven special-shaped super-flexible elastic framework. The mechanical hand includes a top plate and a base plate. The top plate and the base plate are fixed into a whole through two groups of guide connection rods. Two lead screw shaft servo motors are disposed on the top plate at an interval. Lead screws of the two lead screw shaft servo motors are respectively connected to a hollow finger front section driving plate and a finger root portion driving plate. Tail ends of the two lead screws are respectively supported on the base plate through two mounted bearings. The mechanical hand further includes flexible fingers. A tip portion of each of the flexible fingers is fixed on the hollow finger front section driving plate. A special-shaped super-flexible leaf spring of the flexible finger is connected to the base plate through a finger root hinge seat.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: May 11, 2021
    Assignee: JIANGNAN UNIVERSITY
    Inventors: Jun Zhang, Dingfeng Xu, Qiang Wang, Bing Lv
  • Publication number: 20210094189
    Abstract: The disclosure relates to a mechanical hand of a dual-driven special-shaped super-flexible elastic framework. The mechanical hand includes a top plate and a base plate. The top plate and the base plate are fixed into a whole through two groups of guide connection rods. Two lead screw shaft servo motors are disposed on the top plate at an interval. Lead screws of the two lead screw shaft servo motors are respectively connected to a hollow finger front section driving plate and a finger root portion driving plate. Tail ends of the two lead screws are respectively supported on the base plate through two mounted bearings. The mechanical hand further includes flexible fingers. A tip portion of each of the flexible fingers is fixed on the hollow finger front section driving plate. A special-shaped super-flexible leaf spring of the flexible finger is connected to the base plate through a finger root hinge seat.
    Type: Application
    Filed: December 10, 2020
    Publication date: April 1, 2021
    Inventors: Jun ZHANG, Dingfeng XU, Qiang WANG, Bing LV