公开(公告)号：US20200206922A1

公开(公告)日：2020-07-02

申请号：US16236518

申请日：2018-12-30

Applicant: UBTECH Robotics Corp

Inventor： YOUJUN XIONG ,  Jianxin Pang ,  Lifu Zhang ,  Wenhua Fan ,  Dong Liu

IPC: B25J9/16

Abstract: The present disclosure provides a robot joint motion control method and apparatus as well as a robot using the same. The method includes: obtaining coordinates of a plurality of key points of a motion of a joint of the robot based on a preset linear control model; determining coordinates of two smooth connecting points respectively before and after each key point based on a preset time connecting factor; calculating a joint motion trajectory between each two adjacent smooth connecting points using a preset parabola connecting formula, based on the coordinates of the two smooth connecting points and the corresponding key point; and controlling the joint of the robot to move according to the joint motion trajectory between each two adjacent smooth connecting points. The present disclosure can avoid the joints of a robot from overshooting, thereby enhancing the user experience.

公开(公告)号：US20200206910A1

公开(公告)日：2020-07-02

申请号：US16370890

申请日：2019-03-30

Applicant: UBTECH Robotics Corp

Inventor： Sicong Liu ,  Youjun Xiong ,  Hongyu Ding ,  Jianxin Pang

IPC: B25J9/10 ,  F16C1/16 ,  F16H25/20

Abstract: A driving assembly of a robotic hand includes an actuator, a fixed member, an elastic member having an end connected to the actuator, two phalanxes rotatably connected to each other through a first revolute joint, one of which is rotatably connected to the fixed member through a second revolute joint, torsion springs mounted to the first revolute joint and the second revolute joint, a first pulling member having two opposite ends that are respectively fixed to the fixed member and the first revolute joint, a second pulling member having two opposite ends that are respectively fixed to the first revolute joint and the second revolute joint, and a third pulling member having two opposite ends that are respectively fixed to the actuator and the second one of the at least two phalanxes.

公开(公告)号：US10518420B1

公开(公告)日：2019-12-31

申请号：US16233139

申请日：2018-12-27

Applicant: UBTECH Robotics Corp

Inventor： Youjun Xiong ,  Wenhua Yu ,  Qi Zhao ,  Kunlei Zhao ,  Jiawen Hu ,  Yangyu Pi ,  Jianxin Pang

IPC: B25B15/00 ,  B25J15/06 ,  B25J15/08 ,  B25J15/00 ,  B25J15/12

Abstract: A finger of a robotic hand includes a phalanx portion including two phalanxes rotatably coupled to each other, one of the two phalanxes being rotatable about a rotation axis with respect to the other one of the two phalanxes; and a stopper structure including a first stopper member connected to the one of the two phalanxes and a second stopper member connected to the other one of the two phalanxes. The first stopper member extends around the rotation axis, and a circumferential space is defined between the first stopper member and the second stopper member and allowing the first stopper member to rotate together with the one of the two phalanxes in a predetermined range.