Patents by Inventor Jiajie Sha

Jiajie Sha 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).

  • Publication number: 20230271338
    Abstract: According to implementations of the subject matter described herein, there is provided a robot. The robot includes a motor mounted on a frame; a driving member having a shaft portion mounted to the motor and an output portion configured to engage a downstream driving member; a seal ring coupled to the frame and having an inner annular portion; and a collar secured to the shaft portion and having an outside peripheral surface in contact with the inner annular portion of the seal ring. A robot having a more reliable seal for protecting the motor can be achieved.
    Type: Application
    Filed: September 14, 2020
    Publication date: August 31, 2023
    Inventors: Xiaodong Cao, Kaiwei Chen, Jiajie Sha
  • Publication number: 20230243428
    Abstract: Embodiments of the present disclosure provide a sealing structure for a robot joint. The sealing structure comprise a first sealing member adapted to be connected to a first part of the robot joint and a second sealing member adapted to be arranged between the first sealing member and a second part of the robot joint and in contact with the first sealing member. The first part is rotatable with respect to the second part. A material of the first sealing member is harder than the material of the second sealing member. With such a sealing structure, the reducer is closely sealed from the ambient environment. In this way, the leakage of the reducer can be prevented for an extended period even in harsh conditions and thereby the service life of the robot joint can be prolonged.
    Type: Application
    Filed: September 10, 2020
    Publication date: August 3, 2023
    Inventors: Xiaodong Cao, Jiajie Sha, Kaiwei Chen
  • Publication number: 20230069216
    Abstract: A locking system and a manufacturing method thereof, a bearing assembly, and a robot having the same. The locking system incudes a first nut arranged on a shaft and adapted to contact with an upper side of an inner ring of the bearing. The locking system can also include a second nut arranged on the shaft and separated from the first nut at a predetermined distance. The locking system can include a locking screw adapted to be screwed through a first through hole of the second nut and a second through hole of the first nut while the first through hole and the second through hole are aligned with each other.
    Type: Application
    Filed: May 18, 2020
    Publication date: March 2, 2023
    Inventors: Kaiwei Chen, Jiajie Sha, Xiaodong Cao
  • Publication number: 20220388184
    Abstract: Present disclosure provide an apparatus for holding cables of a robot and a robot. The apparatus comprises a body extending along an axis and comprising a circumferential wall to space the cables arranged in the body from a first part of the robot; and a slit formed on the circumferential wall across an entire length of the circumferential wall along the axis, the slit adapted for the cable to pass through radially to allow the cables to be arranged in the body. With the slit formed across the entire length of the circumferential wall along the axis, the cables can be easily arranged in the body radially through the slit. In this way, the cables can be arranged in the apparatus without having to remove the large connector, thereby improving assembly efficiency. In addition, since the connector does not need to be removed, the connection performance is also improved.
    Type: Application
    Filed: October 29, 2019
    Publication date: December 8, 2022
    Inventors: Jiajie Sha, Xiaodong Cao, Yun Ha, Yinong Chen
  • Patent number: 10682755
    Abstract: The present disclosure provides an arm for a multi joint robot, and a multi joint robot. The arm is formed by a first half portion and a second half portion engaged with each other, an upper portion of each of the first and second half portions being provided with a protrusion, the protrusions being substantially parallel to each other, a lower portion of the first half portion being provided with a supporting member, the two half portions being engaged with each other via an engagement surface which is between the two protrusions, the shape of a lower portion of the second half portion matching the shape of an outer circumference of the supporting member.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: June 16, 2020
    Assignee: ABB Schweiz AG
    Inventors: Xiaodong Cao, Zhu Zhu, Jiajie Sha
  • Patent number: 10661437
    Abstract: A stopper apparatus for robot rotary joint, for limiting the rotation angle of a turning shaft. The stopper apparatus includes: a rotary protrusion, fixed to the shaft and extended from an outer circumference surface of the shaft; a ring-like orbit, fixed to a mounting housing of the robot rotary joint, inserting the shaft therein; a first slider and a second slider, rotatably accommodated in the orbit and able to push each other to rotate; a stop protrusion, fixed to the housing of a robot rotary joint and extended in the direction of the center of the shaft; the rotary protrusion is able to directly push the second slider to rotate, while it is not able to directly push the first slider to rotate; the shaft, the rotary protrusion and the second slider cannot be obstructed by the stop protrusion when rotate, while the first slider is able to be obstructed by the stop protrusion when rotate, thereby the relative rotation between the shaft and the housing can be stopped.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: May 26, 2020
    Assignee: ABB Schweiz AG
    Inventors: Jiajie Sha, Xiaodong Cao, Kaiyuan Cao, Yun Ha, Zhu Zhu
  • Patent number: 10632630
    Abstract: A robot joint and a robot using the robot joint is provided. The robot joint includes a first part and a second part configured to be rotatable with each other around a joint axis. A flexible printed circuit board is further included with a first fixing point and a second fixing point respectively fastened to the first part and the second part. The flexible printed circuit board is spiral-shaped prior to bending. With the relative rotation of the first part and the second part, the flexible printed circuit board is bent at various bending portions. This makes the robot joint more compact with a larger rotation range and a long lifetime in a cost effective way.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: April 28, 2020
    Assignee: ABB Schweiz AG
    Inventors: Kaiyuan Cao, Xiaodong Cao, Yun Ha, Zhu Zhu, Jiajie Sha
  • Publication number: 20190118374
    Abstract: A stopper apparatus for robot rotary joint, for limiting the rotation angle of a turning shaft. The stopper apparatus includes: a rotary protrusion, fixed to the shaft and extended from an outer circumference surface of the shaft; a ring-like orbit, fixed to a mounting housing of the robot rotary joint, inserting the shaft therein; a first slider and a second slider, rotatably accommodated in the orbit and able to push each other to rotate; a stop protrusion, fixed to the housing of a robot rotary joint and extended in the direction of the center of the shaft; the rotary protrusion is able to directly push the second slider to rotate, while it is not able to directly push the first slider to rotate; the shaft, the rotary protrusion and the second slider cannot be obstructed by the stop protrusion when rotate, while the first slider is able to be obstructed by the stop protrusion when rotate, thereby the relative rotation between the shaft and the housing can be stopped.
    Type: Application
    Filed: April 25, 2018
    Publication date: April 25, 2019
    Inventors: Jiajie Sha, Xiaodong Cao, Kaiyuan Cao, Yun Ha, Zhu Zhu
  • Publication number: 20180326574
    Abstract: The present disclosure provides an arm for a multi joint robot, and a multi joint robot. The arm is formed by a first half portion and a second half portion engaged with each other, an upper portion of each of the first and second half portions being provided with a protrusion, the protrusions being substantially parallel to each other, a lower portion of the first half portion being provided with a supporting member, the two half portions being engaged with each other via an engagement surface which is between the two protrusions, the shape of a lower portion of the second half portion matching the shape of an outer circumference of the supporting member.
    Type: Application
    Filed: May 9, 2018
    Publication date: November 15, 2018
    Inventors: Xiaodong Cao, Zhu Zhu, Jiajie Sha
  • Publication number: 20180222063
    Abstract: A robot joint and a robot using the robot joint is provided. The robot joint includes a first part and a second part configured to be rotatable with each other around a joint axis. A flexible printed circuit board is further included with a first fixing point and a second fixing point respectively fastened to the first part and the second part. The flexible printed circuit board is spiral-shaped prior to bending. With the relative rotation of the first part and the second part, the flexible printed circuit board is bent at various bending portions. This makes the robot joint more compact with a larger rotation range and a long lifetime in a cost effective way.
    Type: Application
    Filed: April 2, 2018
    Publication date: August 9, 2018
    Inventors: Kaiyuan Cao, Xiaodong Cao, Yun Ha, Zhu Zhu, Jiajie Sha