公开(公告)号：US20200206646A1

公开(公告)日：2020-07-02

申请号：US16727969

申请日：2019-12-27

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Yongping Zeng ,  Wei He ,  Wenhua Fan ,  Zhongliang Wang ,  Youjun Xiong

IPC: A63H33/04 ,  G06F13/40 ,  H01R13/62

Abstract: A building element for a modular device includes a male connector comprising M first magnets, a first ground terminal, a first detection terminal, a first power terminal, and a first signal terminal; and a female connector comprising M second magnets that are magnetically attractable to the first magnets, N second ground terminals, O second detection terminals, P second power terminals, and a second signal terminal. When the male connector of one building element is mechanically connected to the female connector of another building element, the first ground terminal, the first detection terminal, the first power terminal and the first signal terminal of the male connector of the one of two building elements respectively come into contact with one of the second ground terminals, one of the second detection terminals, one of the second power terminals, and the second signal terminal of the other one of the two building elements.

公开(公告)号：US20200161803A1

公开(公告)日：2020-05-21

申请号：US16445243

申请日：2019-06-19

Applicant: Ubtech Robotics Corp Ltd

Inventor： Youjun Xiong ,  Wenhua Fan ,  Jianxin Pang

IPC: H01R13/62 ,  H01R13/22

Abstract: An electronic building block includes a first side and a second side, a first magnet fixed to the first side and including a number of first magnet segments, a second magnet fixed to the second side and including a number of second magnet segments, a first power contact, a second power contact and a first communication contact arranged on the first side; and a third power contact, a fourth power contact and a second communication contact arranged on the second side and respectively coming into contact with the first power contact, the second power contact, and the first communication contact when the first magnet segments of one of two electronic building blocks is connected to the second magnet segments of the other of two electronic building blocks.

公开(公告)号：US20230415355A1

公开(公告)日：2023-12-28

申请号：US18243669

申请日：2023-09-08

Applicant: UBTECH ROBOTICS CORP LTD.

Inventor： ZHONGKUI HUANG ,  Hongyu Ding ,  Xixiang Luo ,  Ming Chen ,  Wenhua Fan

IPC: B25J15/00 ,  B25J15/02

CPC classification number: B25J15/0009 ,  B25J15/022

Abstract: A linkage mechanism includes: a base member; a first link having a first end rotatably connected to the base member; a second link rotatably connected to the first link; a connecting member rotatably connected to the base member and the second link; an actuating mechanism having a linear actuator, a pushing member, and a transmission member, the pushing member slidably connected to the output shaft, the pushing member having a pushing surface, the transmission member including a first end hinged to the pushing member, and a second end pivoted to the first end of the first link. When the output shaft extends to push the pushing surface, the pushing member moves and the first link rotates relative to the base member.

公开(公告)号：US11346648B2

公开(公告)日：2022-05-31

申请号：US16626519

申请日：2018-12-29

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Xi Bai ,  Wenhua Fan ,  Malin Wang ,  Youjun Xiong

IPC: G01B5/24 ,  H02P21/18 ,  G05B19/416

Abstract: The present invention provides a rotation angle detection method and device thereof. The method includes calculating an estimated value of a rotation angle of a motor shaft during rotation according to a second rotation angle; determining an actual range of the rotation angle according to the estimated value of the rotation angle and a detection error of the second angle sensor; determining optional values of the rotation angle based on a relative relationship between a first rotation angle and the estimated value; determining an actual rotation angle of the motor shaft, based on a value falling within the actual range of the rotation angle among the optional values, and determining an actual rotation angle of the output shaft according to the actual rotation angle of the motor shaft. The present invention can improve the measurement accuracy of the rotation angles of the output shaft of the rotating mechanism.

公开(公告)号：US11185983B2

公开(公告)日：2021-11-30

申请号：US16713012

申请日：2019-12-13

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Lifu Zhang ,  Wenhua Fan ,  Hanyu Sun ,  Youjun Xiong ,  Jianxin Pang

IPC: B25J9/16 ,  H02P29/00 ,  H02P23/00

Abstract: A position control method for a servo, includes: receiving, from a control terminal, a motion control command that comprises a motion planning parameter about position of an output shaft of the servo; acquiring speed information or time information indicated by the motion planning parameter, and determining a constant parameter control duration according to the speed information or time information; determining a control parameter corresponding to a constant parameter control stage according to the constant parameter control duration and a preset constant parameter; performing a transient adjustment to the servo when the constant parameter control stage ends, and changing the control parameter to an adaptive operation parameter when the transient adjustment ends; and controlling a rotation angle of the output shaft of the servo to perform a position control of the servo, based on duration values and control parameters corresponding to each of a plurality of control stages.

公开(公告)号：US10942502B2

公开(公告)日：2021-03-09

申请号：US16581791

申请日：2019-09-25

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Youjun Xiong ,  Xi Bai ,  Wenhua Fan ,  Malin Wang ,  Jianxin Pang

IPC: G05B19/23 ,  G05B19/4062

Abstract: The present disclosure provides a control method for an electronically controlled servo mechanism as well as an apparatus and a robot thereof. The method is for an electronically controlled servo mechanism including a servo having a PI controller, which includes: obtaining related parameter(s) of the PI controller before tuning, where the related parameters includes a proportional coefficient and an integral coefficient; obtaining a current rotational angle of an output shaft of the servo, and calculating an angular deviation between the obtained current rotational angle and an expected rotational angle of an output shaft of the servo; and tuning the related parameter(s) of the PI controller based on the proportional coefficient, the integral coefficient, and the angular deviation. In such a manner, the parameter(s) of the PI controller are tuned to make it equivalent to a P controller, thereby avoiding the large oscillation caused by external interference.

公开(公告)号：US20200206936A1

公开(公告)日：2020-07-02

申请号：US16535108

申请日：2019-08-08

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： YOUJUN XIONG ,  Hanyu Sun ,  Lifu Zhang ,  Wenhua Fan ,  Zhongliang Wang ,  Yongping Zeng ,  Jianxin Pang

IPC: B25J9/16

Abstract: The present disclosure provides a servo output shaft angle calibration method and a robot using the same. In the method, when a servo output shaft rotational angle calibration instruction is obtained, an output shaft of a servo is controlled to move in a preset rotational direction, a current angle of the output shaft of the servo is obtained when it detects that the output shaft of the servo has rotated to an end point and has a stalling, and then a preset end point angle is updated as the current angle of the output shaft of the servo, so as to take the current angle of the output shaft of the servo as the new end point angle, thereby realizing the calibration of the end point angle of the output shaft of the servo. In this manner, the entire calibration process requires no manual intervention.

公开(公告)号：US11685043B2

公开(公告)日：2023-06-27

申请号：US16902205

申请日：2020-06-15

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Chengkun Zhang ,  Liang Huang ,  Jianbo Li ,  Jingchen Li ,  Hongyu Ding ,  Wenhua Fan ,  Won Suk You ,  Raymond Ma ,  Muhammed Rasid Pac ,  Huan Tan ,  Youjun Xiong

IPC: B25J9/04 ,  B25J17/00 ,  B25J13/08 ,  B25J19/00 ,  B25J9/12

CPC classification number: B25J9/046 ,  B25J13/085 ,  B25J13/086 ,  B25J17/00 ,  B25J19/0004 ,  B25J9/126

Abstract: A mechanical arm includes a first link connectable to a surface, a second link, a third link, a fourth link, and a fifth link that are coupled to one another in series, and an end effector connectable to the fifth link. The end effector is rotatable about an axis of rotation same as an axis of rotation of the fourth link, and rotatable about an axis of rotation orthogonal to the axis of rotation of the fourth link. The first link, the second link, the third link, the fourth link, and the fifth link are collectively structured and configured to rotate such that the end effector is actuatable to a workspace under the surface.

公开(公告)号：US11230012B2

公开(公告)日：2022-01-25

申请号：US16508335

申请日：2019-07-11

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Youjun Xiong ,  Hanyu Sun ,  Wenhua Fan ,  Lifu Zhang ,  Zhongliang Wang ,  Jianxin Pang

IPC: B25J19/02 ,  B25J9/16

Abstract: A servo calibration method as well as an apparatus and a robot using the same are provided. The method includes: obtaining data of a position sensor on a motor shaft of the servo; obtaining data of a position sensor on an output shaft of the servo; determining whether a clutch protection has been performed on the servo based on data of the position sensor on the motor shaft and data of the position sensor on the output shaft; and calibrating a position of the motor shaft based on the data of the position sensor on the output shaft, if the clutch protection has been performed on the servo. Hence, the problem in the prior art that the process of the calibration is cumbersome can be solved.

公开(公告)号：USD932530S1

公开(公告)日：2021-10-05

申请号：US29738499

申请日：2020-06-18

Applicant: UBTECH ROBOTICS CORP LTD

Designer： Brandon Jon LaPlante ,  Liang Huang ,  Chengkun Zhang ,  Jianbo Li ,  Jingchen Li ,  Francisco Jose Hernandez ,  Shixun Chen ,  Hongyu Ding ,  Wenhua Fan ,  Xinshui Huang ,  Huan Tan ,  Youjun Xiong