Patents by Inventor Shengdun ZHAO

Shengdun ZHAO 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: 11306799
    Abstract: An inner roller feeding device for a baseplate of a counter-roller driving power spinning equipment includes an inner roller column, an inner roller top plate, an inner roller upper plate, an inner roller lower plate, a cam, a cam mounting cylinder, inner rollers, inner roller shafts, a feed screw, a servo motor and a baseplate. According to the inner roller feeding device, a brake motor serves as a power source, the inner roller is driven by the cam through a worm gear drive to feed along a radial direction of a workpiece, such that an inner roller mechanism is small in size, large in adjustment range and high in positioning precision.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: April 19, 2022
    Assignee: Xi'an Jiaotong University
    Inventors: Shengdun Zhao, Fan Li, Chengcheng Zhu, Shuqin Fan, Hong Jiang
  • Patent number: 11298777
    Abstract: A powder-enhanced friction stir rivet welding device includes a friction stir rivet welding spindle, a C-shaped frame and a tooling platform. The friction stir rivet welding spindle includes a rotating mechanism, a feed mechanism, a vibration-rotation mixing mechanism and a powder feeding mechanism. The friction stir rivet welding spindle is configured to realize rotation and feed movements of a rivet and feeding and mixing of a powder. The C-shaped frame is configured to fix the friction stir rivet welding spindle and the tooling platform. The tooling platform includes a force sensor, a sensor indenter, a tooling mould and a tooling platen. The tooling platform is configured to clamp a workpiece to be riveted and welded, and measure a rivet welding force of the friction stir rivet welding spindle in real time.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: April 12, 2022
    Assignee: XI'AN JIAOTONG UNIVERSITY
    Inventors: Shengdun Zhao, Peng Zhang, Yongfei Wang, Jingxiang Li, Shuqin Fan
  • Patent number: 11292045
    Abstract: A full-electric servo vertical three-counter driving power spinning device includes a rack, and the rack includes a baseplate. A workpiece active rotating mechanism and an inner roller feeding mechanism are provided on the baseplate, an outer roller feeding mechanism is provided on the rack; the outer roller feeding mechanism is provided with an outer roller active rotating mechanism; the outer roller active rotating mechanism includes an outer roller active rotating motor and an outer roller, and the inner roller feeding mechanism includes an inner roller. A stress state of a cylinder material by adopting a combined method of an active rotation of a roller and an active rotation of a workpiece turntable is significantly different from that by a passive spinning of a counter-roller, thus improving a thinning rate of a wall thickness of a cylindrical member and a hardening properties of materials.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: April 5, 2022
    Assignee: Xi'an Jiaotong University
    Inventors: Shengdun Zhao, Fan Li, Chengcheng Zhu, Shuqin Fan, Hong Jiang
  • Publication number: 20210402503
    Abstract: A powder-enhanced friction stir rivet welding device includes a friction stir rivet welding spindle, a C-shaped frame and a tooling platform. The friction stir rivet welding spindle includes a rotating mechanism, a feed mechanism, a vibration-rotation mixing mechanism and a powder feeding mechanism. The friction stir rivet welding spindle is configured to realize rotation and feed movements of a rivet and feeding and mixing of a powder. The C-shaped frame is configured to fix the friction stir rivet welding spindle and the tooling platform. The tooling platform includes a force sensor, a sensor indenter, a tooling mould and a tooling platen. The tooling platform is configured to clamp a workpiece to be riveted and welded, and measure a rivet welding force of the friction stir rivet welding spindle in real time.
    Type: Application
    Filed: June 30, 2021
    Publication date: December 30, 2021
    Inventors: Shengdun ZHAO, Peng ZHANG, Yongfei WANG, Jingxiang LI, Shuqin FAN
  • Publication number: 20210023602
    Abstract: A full-electric servo vertical three-counter driving power spinning device includes a rack, and the rack includes a baseplate. A workpiece active rotating mechanism and an inner roller feeding mechanism are provided on the baseplate, an outer roller feeding mechanism is provided on the rack; the outer roller feeding mechanism is provided with an outer roller active rotating mechanism; the outer roller active rotating mechanism includes an outer roller active rotating motor and an outer roller, and the inner roller feeding mechanism includes an inner roller. A stress state of a cylinder material by adopting a combined method of an active rotation of a roller and an active rotation of a workpiece turntable is significantly different from that by a passive spinning of a counter-roller, thus improving a thinning rate of a wall thickness of a cylindrical member and a hardening properties of materials.
    Type: Application
    Filed: July 15, 2020
    Publication date: January 28, 2021
    Applicant: Xi'an Jiaotong University
    Inventors: Shengdun ZHAO, Fan LI, Chengcheng ZHU, Shuqin FAN, Hong JIANG
  • Publication number: 20210025476
    Abstract: An inner roller feeding device for a baseplate of a counter-roller driving power spinning equipment includes an inner roller column, an inner roller top plate, an inner roller upper plate, an inner roller lower plate, a cam, a cam mounting cylinder, inner rollers, inner roller shafts, a feed screw, a servo motor and a baseplate. According to the inner roller feeding device, a brake motor serves as a power source, the inner roller is driven by the cam through a worm gear drive to feed along a radial direction of a workpiece, such that an inner roller mechanism is small in size, large in adjustment range and high in positioning precision.
    Type: Application
    Filed: July 15, 2020
    Publication date: January 28, 2021
    Applicant: Xi'an Jiaotong University
    Inventors: Shengdun ZHAO, Fan LI, Chengcheng ZHU, Shuqin FAN, Hong JIANG