B25J19/0095

Failure diagnosis device for reduction gear, method of diagnosing failure, and mechanical apparatus provided with the failure diagnosis device

A failure diagnosis device for a reduction gear is a failure diagnosis device for a reduction gear provided to a mechanical apparatus driven by a motor so that the reduction gear slows down rotation power of the motor and transmits the power to an operating part of the mechanical apparatus. The device identifies an acceleration/deceleration period during which operation of the mechanical apparatus accelerates and/or decelerates, and determines whether the reduction gear indicates a sign of failure based on a change in frequency spectrum of motor current with respect to a change in a rotation speed of the motor during the acceleration/deceleration period.

FIXING PLATFORM FOR USE WITH INDUSTRIAL ROBOT AND METHOD OF AUTOMATICALLY MEASURING BACKLASH OF GEAR
20240418605 · 2024-12-19 ·

A fixing platform and a method of automatically measuring a backlash of a gear. The fixing platform includes a baseplate, a securing component provided on the baseplate; a balancing weight coupled to a terminal arm of an industrial robot; and a cylinder provided on the baseplate and adjacent to the securing component. The cylinder includes a plunger configured to move along a first direction to clamp the balancing weight when the balancing weight is coupled to the securing component.

Automatic end-to-end testing of mobile applications displaying optical barcodes

A method, system, and apparatus are provided. The method includes receiving, with a coordinator component, a task for testing at least one electronic device, retrieving, by a first agent from the coordinator component, the task for testing the at least one electronic device, controlling a first robotic device to test the at least one electronic device based on the retrieved task, and receiving, with the coordinator component, a result of the task based on the testing of the at least one electronic device.

FAILURE DIAGNOSIS DEVICE FOR REDUCTION GEAR, METHOD OF DIAGNOSING FAILURE, AND MECHANICAL APPARATUS PROVIDED WITH THE FAILURE DIAGNOSIS DEVICE

A failure diagnosis device for a reduction gear of the present disclosure is a failure diagnosis device (1) for a reduction gear (13) provided to a mechanical apparatus (11) driven by a motor (14) so that the reduction gear slows down rotation power of the motor and transmits the power to an operating part (12) of the mechanical apparatus. The device identifies an acceleration/deceleration period during which operation of the mechanical apparatus accelerates and/or decelerates, and determines whether the reduction gear indicates a sign of failure based on a change in frequency spectrum of motor current with respect to a change in a rotation speed of the motor during the acceleration/deceleration period.

FORCE/TORQUE SENSOR HAVING REDUNDANT INSTRUMENTATION AND OPERATIVE TO DETECT FAULTS
20170211999 · 2017-07-27 ·

A force/torque sensor includes a number n of deformable beams connecting the TAP to the MAP, wherein n4. At least four of the n deformable beams are instrumented with strain gages affixed to surfaces of the beams, such that each beam outputs two gage signals. The eight gage signals are grouped into four sets of six gage signals, such that each set includes the gage signals from three of the four instrumented beams. Each set of six gage signals is multiplied by a calibration matrix to yield a set of six force and torque values. The four sets of force and torque values are compared. If one set disagrees with the other three by greater than a predetermined tolerance, a sensor fault is signaled.

FAILURE PREDICTION DEVICE
20250058467 · 2025-02-20 ·

The purpose of the present invention is to accurately predict failure of a robot without erroneous detection even if the pattern of operation of the robot changes. This failure prediction device is provided with: an evaluation data collection unit that collects evaluation data for at least a drive shaft of a robot working on the basis of a work program; and an erroneous detection determination unit that uses the evaluation data to derive an evaluation formula for evaluating the evaluation data, and determines whether the evaluation data is an evaluation data value attributed to a factor other than failure of the robot, or an evaluation data value attributed to a failure factor for the robot, on the basis of the evaluation formula and the evaluation data.

INSPECTION METHOD

An inspection method of a suction nozzle. Air flow rates that flow in multiple reference pipes that have different sectional areas are measured. A proportionality factor between air flow rates and sectional areas of the reference pipes is calculated based on the measured air flow rates of the multiple reference pipes, and the sectional areas of the multiple reference pipes. An air flow rate in a suction nozzle that is an inspection target is measured. The sectional area of the suction nozzle is calculated based on the air flow rate of the suction nozzle and the calculated proportionality factor. The sectional area of the suction nozzle calculated in this manner is substantially fixed even when the pressure of air supplied from an air source fluctuates. The sectional area of the suction nozzle is proportional to the air flow rate that flows in an inner portion of the suction nozzle.

Method for detecting and evaluating a friction status at a joint, robotic arm and computer program product
12257722 · 2025-03-25 · ·

A method, a robot, and a computer program product for detecting and evaluating a friction status in at least one joint of a robotic arm, wherein, within the scope of a brake test program, at least one motor of a plurality of electric motors is driven automatically in a first rotational direction, wherein a detection of a first motor torque in the driven motor takes place during its rotation in the first rotational direction. The at least one motor is then driven in a second rotational direction opposite the first rotational direction, wherein a detection of a second motor torque in the driven motor takes place during its rotation in the second rotational direction. An automatic evaluation of the first motor torque and the second motor torque takes place in order to obtain the friction torque of the joint associated with the driven motor.

ROBOT APPARATUS, AND MEASURING METHOD OF ROTATION DRIVING APPARATUS

The present invention enables to easily and accurately measure a joint of a robot apparatus, in particular, a lost motion of a driving system of the joint, and, to easily and accurately perform a diagnosis of a lifetime or a life expectancy of a joint mechanism of the robot apparatus based on a measured result.

Method for automatically scheduling the timing of brake tests, and associated robot
12318944 · 2025-06-03 · ·

A method, a robot, and a robot controller for automatically scheduling the timing of a plurality of brake tests, that succeed one another at time intervals, at a plurality of brakes of a robot arm equipped with a plurality of joints and a plurality of links connecting the joints to one another and is connected to a robot controller which is designed and configured to control the joints and the brakes, in order to move the robot arm. At least one individual parameter is configured for each of the brakes. A brake test method associated with the robot arm is automatically initialized, and the initialized brake test method is automatically carried out in accordance with the configured parameters.