Machine Tool Door Position Setting With Variable Opening Speed
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Solution Overview
Problem
Current machine tools require specialized knowledge to set and intuitively understand the opening/closing positions of doors, making it difficult for users to easily designate and adjust these positions without rewriting programs or settings.
Innovation Solution
A machine tool system that includes a control device, a detection unit, and an operation panel, allowing users to manually set and store opening/closing positions of a door by moving it manually, and then automatically control the door to those positions, with adjustable opening/closing speeds for different operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the door is driven to fixed opening/closing positions using program designation or setting change, then the door can be stopped at arbitrary positions, but specialized knowledge is required and it is difficult to intuitively understand the degree of opening/closing
Solution Approach 1:
The door serves itself by allowing manual positioning without requiring external program designation or setting changes. The user simply moves the door manually to the desired position, and the system automatically detects and stores this position, eliminating the need for specialized knowledge in position designation.
Solution Approach 2:
The manual mechanical positioning of the door is substituted with an automatic detection system using a detection unit (sensor) that detects the door's actual position and converts it into stored position data, replacing the need for manual program input or setting changes.
2Productivity
If the door opens at high speed, then productivity is improved, but safety and precision in positioning are compromised
Solution Approach 1:
The door opening speed is made dynamic rather than fixed. The control device automatically adjusts the opening speed based on the operational context: using a first (slower) opening speed during manual position setting and a second (faster) opening speed during automatic operation, thereby optimizing both productivity and positioning accuracy.
Solution Approach 2:
The opening speed parameter is changed based on the operational phase. The system switches between different speed parameters (first opening speed for setting, second opening speed for operation) to match the requirements of each phase, ensuring both safety during positioning and efficiency during operation.
3Device complexity
If the door is driven to fixed positions only, then control is simplified, but flexibility in setting multiple opening/closing levels is reduced
Solution Approach 1:
The door positioning system is made universal by enabling multiple opening/closing positions to be set and stored. The detection unit and control device work together to detect and store any door position, allowing the door to be opened to multiple different positions (first opening position, second opening position, etc.) while maintaining simple automatic control.
Data Source
AI summary
A machine tool includes: a cover; a door; a drive mechanism; a detection unit; and an operation panel that receives an operation for the machine tool. A control device of the machine tool performs: processing to control the drive mechanism such that the door is opened, based on the operation panel receiving a first opening operation; processing to obtain an actual position from the detection unit and store the actual position as an opening position of the door, based on the operation panel receiving an operation to determine a position; and processing to control the drive mechanism such that the door is located at the opening position, based on the operation panel receiving a second opening operation. An opening speed of the door during the first opening operation is slower than an opening speed of the door during the second opening operation.