18260463. DISPLAY DEVICE simplified abstract (FANUC CORPORATION)
Contents
DISPLAY DEVICE
Organization Name
Inventor(s)
Tomoyuki Aizawa of Yamanashi (JP)
Junichi Tezuka of Yamanashi (JP)
Satoshi Ikai of Yamanashi (JP)
DISPLAY DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18260463 titled 'DISPLAY DEVICE
The abstract describes a display device that can automatically identify and display a vibration site and vibration axis using empty processing. The device includes a trajectory error calculation unit, an amplitude calculation unit, a vibration detection unit, a vibration axis determination unit, and a display unit.
- Trajectory error calculation unit calculates time-sequence data of trajectory errors of a tool based on actual positions and command positions.
- Amplitude calculation unit calculates the amplitudes of frequency components by frequency analysis of the trajectory errors.
- Vibration detection unit detects frequency components with amplitudes exceeding a threshold and identifies the vibration site.
- Vibration axis determination unit determines the axis with the greatest amplitude of the detected frequency component as the vibration axis.
- Display unit shows the vibration site on the movement trajectory and displays the determined vibration axis.
Potential Applications: - Industrial machinery maintenance - Structural health monitoring - Robotics and automation systems
Problems Solved: - Automatic identification of vibration sites - Efficient detection of vibration axes - Real-time display of vibration data
Benefits: - Early detection of potential issues - Improved maintenance efficiency - Enhanced equipment reliability
Commercial Applications: Title: "Advanced Vibration Detection Display Device for Industrial Machinery" This technology can be used in various industries such as manufacturing, construction, and transportation for predictive maintenance and performance optimization of equipment.
Questions about the technology: 1. How does the device differentiate between actual positions and command positions to calculate trajectory errors? 2. What are the key factors that determine the threshold value for detecting frequency components in the vibration detection unit?
Original Abstract Submitted
Provided is a display device that can automatically identify and display a vibration site and a vibration axis using empty processing. The present invention is a display device that comprises: a trajectory error calculation unit that, on the basis of a movement trajectory of a tool based on actual positions and a movement trajectory of the tool based on command positions, calculates time-sequence data of trajectory errors of the tool; an amplitude calculation unit that calculates the amplitudes of frequency components by frequency analysis of the time-series data of the trajectory errors of the tool; a vibration detection unit that detects a frequency component for which the amplitude of the frequency component exceeds a prescribed threshold value and detects a position corresponding to the detected frequency component as a vibration site; a vibration axis determination unit that, by frequency analysis of time-sequence data of position deviations or torque commands of axes within a time range corresponding to the detected frequency component, determines an axis for which the amplitude of the frequency component identical to the detected frequency component is greatest to be a vibration axis; and a display unit that displays the detected vibration site on the movement trajectory and displays the axis determined to be the vibration axis.
