公开(公告)号：US20240009864A1

公开(公告)日：2024-01-11

申请号：US17810723

申请日：2022-07-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  Northwestern University

Inventor： Joshua Lee Solomon ,  Hui-ping Wang ,  Lu Huang ,  Dalong Gao ,  Dohyun Leem

IPC: B25J15/08 ,  B25J17/00 ,  B25J13/08 ,  B25J15/06 ,  B25J11/00

CPC classification number: B25J15/083 ,  B25J17/00 ,  B25J13/085 ,  B25J15/0616 ,  B25J11/005

Abstract: Robotic systems and methods are provided with an end effector having lockable compliance. A robotic system for manipulating a workpiece includes an arm having a pair of sections connected by a joint assembly, with a lock disposed in the joint assembly. A gripper is connected on the arm and is configured to alternately grip and release the workpiece. A controller operates the lock to alternately lock and unlock the joint assembly. The gripper holds the workpiece during a deformation of the workpiece, while the controller may unlock the lock to allow movement of the joint assembly to relieve forces on the arm arising during a deformation of the workpiece.

公开(公告)号：US20240353815A1

公开(公告)日：2024-10-24

申请号：US18304954

申请日：2023-04-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Joshua Solomon ,  Hui-ping Wang ,  Lu Huang ,  Joel S. Hooton ,  Dohyun Leem

IPC: G05B19/4155 ,  B25J9/16 ,  B25J11/00

CPC classification number: G05B19/4155 ,  B25J9/1633 ,  B25J9/1697 ,  B25J11/005 ,  G05B2219/35044

Abstract: Automatic methods and robotic system for processing workpieces are provided. A method for locally re-shaping a moldable workpiece includes receiving data in an input module indicating a present form of the workpiece; providing a robot configured to pass the workpiece through a machine; determining, with a control module, a path of the robot based on the present form of the workpiece and a target form of the workpiece; and performing a finishing process by passing, with the robot, the workpiece through the machine along the path, wherein the machine re-shapes the workpiece with the target form.