18548466. MACHINE TOOL CONTROLLER simplified abstract (FANUC CORPORATION)
Contents
MACHINE TOOL CONTROLLER
Organization Name
Inventor(s)
Kouki Oikawa of Yamanashi (JP)
MACHINE TOOL CONTROLLER - A simplified explanation of the abstract
This abstract first appeared for US patent application 18548466 titled 'MACHINE TOOL CONTROLLER
Simplified Explanation: The control device for a machine tool aims to suppress regenerative self-excited chatter vibration by controlling the rotation speed of the main spindle motor based on a fluctuation command calculated from a speed command and a fluctuation condition.
- Calculates a fluctuation command to cause periodic speed fluctuations in the main spindle motor based on the speed command and a frequency rate.
- Controls the rotation speed of the main spindle motor using the calculated fluctuation command to stabilize the machine tool operation.
Key Features and Innovation:
- Fluctuation command calculation unit calculates a fluctuation command based on speed command and fluctuation condition.
- Speed control unit adjusts the rotation speed of the main spindle motor according to the calculated fluctuation command.
Potential Applications: This technology can be applied in various machine tools to improve stability and precision during operation.
Problems Solved: This technology addresses the issue of regenerative self-excited chatter vibration in machine tools, which can affect the quality of machining operations.
Benefits:
- Enhanced stability in machine tool operation.
- Improved precision in machining processes.
- Reduction in chatter vibration for better surface finish.
Commercial Applications: The technology can be utilized in industries such as manufacturing, automotive, aerospace, and more to enhance the performance of machine tools and optimize production processes.
Prior Art: Further research can be conducted on similar control devices for machine tools and vibration suppression techniques in machining operations.
Frequently Updated Research: Stay updated on advancements in control systems for machine tools and vibration control technologies to enhance the effectiveness of this innovation.
Questions about Machine Tool Control Device: 1. What are the primary functions of the fluctuation command calculation unit in the control device? 2. How does the speed control unit contribute to reducing chatter vibration in machine tools?
Original Abstract Submitted
Provided is a control device for a machine tool capable of stably achieving an effect of suppressing regenerative self-excited chatter vibration. This control device for a machine tool includes a fluctuation command calculation unit configured to calculate a fluctuation command based on a speed command for a main spindle motor of the machine tool and a fluctuation condition for causing a rotation speed of the main spindle motor to periodically fluctuate, and a speed control unit configured to control the rotation speed of the main spindle motor based on the speed command and the fluctuation command. The fluctuation command calculation unit is configured to calculate the fluctuation command by calculating a frequency of the rotation speed that periodically fluctuates of the main spindle motor based on the rotation speed of the main spindle motor based on the speed command and a frequency rate that is the fluctuation condition.
