Patent classifications
B25J9/1633
DEBURRING DEVICE AND CONTROL SYSTEM
A deburring device includes a robot program creating unit that creates a program from data of an object, a deburring part detecting unit that detects a position for a deburring part on the object, and a robot program updating unit that updates the program by the detected position of the deburring part. The deburring device also includes a force control unit that controls to yield a predetermined pressing force, an actual path acquiring unit that acquires an actual path of a robot when controlled at the predetermined pressing force by the updated program, and a path correction parameter calculating unit that calculates a correction parameter for the position for the deburring part on the object from the path of the robot from the visual sensor and the actual path.
Axial-force measurement method, tightening determination method, axial-force measurement apparatus, and tightening determination apparatus for bolt
A method for measuring an axial-force of a bolt fastened to a component to be fastened, includes temporarily fastening the bolt to the component to be fastened with a temporarily-tightening torque, the temporarily-tightening torque being a torque which is determined in advance and by which a depression is formed on a head of the bolt, measuring a first axial force of the temporarily-fastened bolt, regularly fastening the bolt to the component to be fastened with a regularly-tightening torque, the regularly-tightening torque being torque which is determined in advance and larger than the temporarily-tightening torque, measuring a second axial force of the regularly-fastened bolt, and measuring an estimated axial force of the regularly-fastened bolt by using the torque with which the bolt is temporarily fastened, the torque with which the bolt is regularly fastened, and a difference between the first and second axial forces.
Exosuit systems with lumbar and core support
Exosuits that use core grip members are described herein. Core grip members apply forces in a radially inward manner from the exterior of the body to the interior of the body to provide support to the user and to serve as a platform for mounting power layer segments.
System and Method for Controlling the Contact Pressure Between an Articulated Robotic Arm and a Secondary Object
A system for moving an object against a working surface of a finishing machine. A mounting platform is provided that is supported by a stationary frame. The mounting platform can only move reciprocally relative to the stationary frame along a linear line of motion. An articulating arm is mounted on the mounting platform and moves with the mounting platform. A linear actuator is provided having a first end coupled to the mounting platform and an opposite end mounted to the stationary frame. The linear actuator has a midline that is parallel to, and aligned with, the linear line of motion. A finishing machine is provided that has a working surface. The articulating arm touches objects to the working surface at a point of contact that is coplanar with the linear line of motion. This directs forces along the linear line of motion and into the linear actuator.
Process and system for monitoring backlash in a gear of a joint of an industrial robot
A process for monitoring backlash in a gear of a joint of an industrial robot, wherein said joint includes a first joint body and a second joint body coupled together with the possibility of moving with respect to one other, a motor provided with an encoder, and a motion-transmission assembly designed to transmit the torque generated by said motor to said second joint body to bring about a movement of said second joint body with respect to said first joint body, said transmission assembly comprising said gear. The process is characterized in that the signal of the encoder of the motor for driving the joint is used without providing any additional sensor specifically dedicated to monitoring of the backlash.
Foot-waist coordinated gait planning method and apparatus and robot using the same
The present disclosure provides a foot-waist coordinated gait planning method and an apparatus and a robot using the same. The method includes: obtaining an orientation of each foot of the legged robot, and calculating a positional compensation amount of each ankle of the legged robot based on the orientation of the foot; obtaining an orientation of a waist of the legged robot, and calculating a positional compensation amount of each hip of the legged robot based on the orientation of the waist; calculating a hip-ankle positional vector of the legged robot; compensating the hip-ankle positional vector based on the positional compensation amount of the ankle and the positional compensation amount of the hip to obtain the compensated hip-ankle positional vector; and performing an inverse kinematics analysis on the compensated hip-ankle positional vector to obtain joint angles of the legged robot.
Task hierarchical control method, and robot and computer readable storage medium using the same
A task hierarchical control method as well as a robot and a storage medium using the same are provided. The method includes: obtaining a task instruction for a robot, where the task instruction is for determining a target task card including an amount of selection matrices for dividing a target task into the amount of hierarchical subtasks and a controller name for executing each of the hierarchical subtasks; obtaining a null space projection matrix of each of the hierarchical subtasks based on the corresponding selection matrix; generating control finks of the amount according to the corresponding controller of each of the hierarchical subtasks and the corresponding null space projection matrix; calculating a control torque of each of the control links and obtaining a hierarchical control output quantity by adding ail the control torques; and controlling the robot to perform the target task using the hierarchical control output quantity.
ROBOT CONTROL METHOD, ROBOT AND COMPUTER-READABLE STORAGE MEDIUM
A method for controlling a robot comprising an end effector includes: establishing at steady state between the end effector and a working surface through a preset impedance control mechanism, and adjusting a contact force between the end effector and the working surface according to a preset desired force; obtaining a contact torque generated by the contact force; controlling the end effector to rotate according to the contact torque until a pose of the end effector is consistent with a pose of the working surface; and controlling the end effector to move tangentially along the working surface.
Surgical system and method utilizing impulse modeling for controlling an instrument
A surgical system for applying an energy applicator to a target tissue and methods operating the same are disclosed. The energy applicator extends from a surgical instrument. The surgical system comprises a sensor to measure external forces and torques placed on the surgical instrument. A surgical manipulator is configured to move the energy applicator in a manual mode in response to the external forces and torques. At least one controller is configured to: model the surgical instrument and the energy applicator as a virtual rigid body having a virtual mass; calculate, using impulse modeling, constraining forces and torques to be applied to the virtual rigid body; determine total forces and torques based on the external forces and torques and the constraining forces and torques; and advance the energy applicator in the manual mode based on the total forces and torques.
SYSTEM AND METHOD FOR AUTONOMOUSLY SCANNING AND PROCESSING A PART
One variation of a method for autonomously scanning and processing a part includes: accessing a part model representing a part positioned in a work zone adjacent a robotic system; retrieving a sanding head translation speed; retrieving a toolpath for execution on the part defining positions, orientations, and target forces applied by the sanding head to the part. The method includes traversing the sanding head along the toolpath, at the sanding head translation speed; reading a sequence of applied forces from a force sensor coupled to the sanding head at positions along the toolpath; and deviating from the toolpath to maintain the set of applied forces within a threshold difference of a sequence of target forces along the toolpath. In one variation of the method, the robotic system executes a toolpath at a duration less than target duration by selectively varying target force and sanding head translation speed across the part.