G05B2219/39241

Processing system and method for controlling processing machine
10618173 · 2020-04-14 · ·

A processing system and a method for controlling a processing machine of the system, by which the processing accuracy of the processing machine due to the motion of the robot can be prevented from being deteriorated, without reducing the working ratio of the processing system. A processing machine controller has: a vibration suppression controlling section configured to operate at least one of a table and a processing tool, and calculate an amount of motion correction for reducing the change in a relative position between the table and the processing tool measured by vibration sensors respectively arranged on the table and a tool driving part; a storing section configured to store the calculated amount motion correction; and a program executing section configured to, during the robot performs the predetermined motion, execute the processing program while executing vibration suppressing motion based on the stored amount of motion correction.

Robot system having learning control function and learning control method

A robot system is provide with a robot control device that includes an operation control unit and a learning control unit. The learning control unit performs a learning control in which a vibration correction amount for correcting a vibration generated at a control target portion of a robot is calculated and the vibration correction amount is employed in the operation command at a next time. The learning control unit includes a plurality of learning control parts for calculating the vibration correction amount and a selection unit that selects one of the plurality of learning control parts on the basis of operation information of the robot when the robot is made to be operated by an operation program that is a target of the learning control.

MAINTENANCE DEVICE
20240134352 · 2024-04-25 · ·

A maintenance device is applied to a bulk feeder including a feeder main body section, a track member, a vibration device, and a cavity group, and includes an initialization section and a vibration force control section. When the use time of the bulk feeder elapses a predetermined time, the initialization section returns a supply component existing in the cavity group toward a receiving region, and sets the cavity group to an initialization state in which the supply component does not exist in the cavity group. The vibration force control section increases the vibration force to be applied by the vibration device to the track member in the initialization section as compared with a case where the supply component is returned from the supply region toward the receiving region in order to adjust the number of the supply components conveyed to the cavity group when a board product is produced.

Conveyance method and conveyance device
10456911 · 2019-10-29 · ·

After a component picked up by a suction nozzle is moved in an XY direction towards target XY coordinates, a waveform of a vibration (vibration waveform) in the Y direction arising in the component after the component has arrived near the target XY coordinates is measured, and control is performed such that the component arrives at a target Z coordinate (value zero) when a displacement y of the component crosses a node of the measured vibration waveform.

Robot control apparatus, robot, and robot system
10434646 · 2019-10-08 · ·

A robot control apparatus includes a robot control part that controls a robot; and a force detection information acquisition part that acquires force detection information from a force detector. The robot control part allows the robot to move a first object closer to a second object and, if a magnitude of at least one of a force and moment contained in the force detection information exceeds a predetermined first threshold value, to perform an operation of bringing a first surface of the first object into surface contact with a second surface of the second object according to position control and force control based on a predetermined distance and a predetermined velocity.

Vibration cutting process diagnostic device

A vibration cutting process diagnostic device diagnoses the propriety of a vibration cutting process to machine the sectional shape of a working object into a non-complete round shape by reciprocating a movable shaft. This device includes a frequency analyzer to calculate a frequency component contained in a position command signal for the movable shaft on the basis of shape data, which is machining shape data on a workpiece treated as the working object, and a machining speed set value; and a process diagnosis executor to diagnose the propriety of machining the shape data under the machining speed set value on the basis of the frequency component and a movable shaft parameter of the movable shaft.

Numerical control device, machine learning device, and numerical control method
11982988 · 2024-05-14 · ·

A numerical control device includesa screen processing unit that divides a waveform of a commanded oscillatory movement quantity specified by a vibration cutting command and a waveform of an actual position detected by detectors, into sections each corresponding to a unit time, and this screen processing unit displays, on a display unit, an n-th commanded oscillation waveform, which is an n-th waveform of the commanded oscillatory movement quantity; an (n+1)-th commanded oscillation waveform, which is an (n+1)-th waveform of the commanded oscillatory movement quantity; an n-th actual position waveform, which is an n-th waveform of the actual position; and an (n+1)-th actual position waveform, which is an (n+1)-th waveform of the actual position, being superimposed on one another along a time axis, where n is a natural number.

ROBOT CONTROLLER
20190217469 · 2019-07-18 ·

A robot controller controls an arm tip end portion of a robot to move at constant predetermined speed on the basis of a movement path including an arc portion, the robot controller including: a centrifugal force calculation unit that calculates a centrifugal force acting on the arm tip end portion as time series data; a transformation unit that performs Fourier transformation with respect to the time series data of the centrifugal force into frequency data; and a speed determination unit that determines the predetermined speed such that a frequency component in a predetermined range including a natural vibration frequency of the robot is equal to or less than a threshold on the basis of frequency data of the centrifugal force.

Control device for robot
10350754 · 2019-07-16 · ·

A control device controlling a robot including a driving unit, a moving unit that is slidable along a predetermined track and a predetermined shaft that is slidably supported by the moving unit includes an instruction value calculating unit calculating an instruction value that drives the driving unit such that the moving unit is moved to a target position, an accelerating-speed calculating unit calculating an angular accelerating speed of when the instruction value changes, a gravity-center distance calculating unit calculating a gravity center distance, a correction instruction-value calculating unit calculating a correction instruction value by correcting the instruction value such that a position of the gravity center which is projected on the predetermined track approaches the target position, and a driving control unit controlling the driving unit based on the correction instruction value.

Control system having learning control function and control method

A robot control system includes an operation control unit, a learning control processing unit and a storage unit. Whenever the operation control unit performs a single learning control, the learning control processing unit stores the number of learning controls, which indicates how many learning controls have been performed, and obtained time-series vibration data in correspondence with each other in the storage unit. The learning control processing unit calculates a convergence determination value to determine whether or not a vibration of a certain portion of a robot converges based on the time-series vibration data at each number of learning controls stored in the storage unit, and determines the number of learning controls having a minimum convergence determination value, out of the calculated convergence determination values, as the optimal number of learning controls.