Onboard Measuring Device for Automated Machine Tool Regions
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Solution Overview
Problem
Conventional onboard measuring systems for ultra-precision machining rely on human operator judgment, leading to variability in measurement precision and machining time, making it difficult to produce high-accuracy metal molds efficiently and consistently.
Innovation Solution
A machine tool with an onboard measuring device that automatically controls drive axes for machining, measurement, and washing, using a numerical controller to determine operational states and execute tasks without human intervention, ensuring consistent measurement precision and machining time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If human operators perform washing and positioning operations based on their judgment, then the onboard measuring system can be operated, but measurement precision and machining time vary depending on operator knowledge and skill
Solution Approach 1:
The system performs self-positioning and self-washing operations automatically. The control unit determines when washing is needed based on machining data, and the washing unit executes washing without operator intervention. Similarly, the system automatically positions the workpiece and determines measurement timing, eliminating reliance on operator judgment and achieving consistent measurement precision.
Solution Approach 2:
The patent replaces manual mechanical operations with an automated control system. The control unit uses machining data to automatically determine washing timing and positioning requirements, substituting operator mechanical actions with electronic control signals that trigger washing units and positioning mechanisms, thereby standardizing operations.
2Ease of operation
If human operators perform washing and positioning operations, then the system can function, but work must be temporarily interrupted every time machining, cleaning or measuring work is performed
Solution Approach 1:
The system enables continuous automated operation by eliminating manual intervention requirements. The control unit continuously monitors machining data and automatically triggers washing operations at appropriate intervals without stopping the machining process. The automated positioning and measurement systems also operate continuously, maintaining uninterrupted production flow and maximizing productivity.
3Ease of operation
If a cover is opened for position check by worker, then positioning can be verified, but temperature drift generated by ambient air transmission prevents high precision manufacturing
Solution Approach 1:
The system replaces manual visual position checking with an automated optical or sensor-based detection system. The detection unit uses light or electromagnetic fields to verify workpiece positioning without opening the cover, eliminating thermal interference from ambient air while maintaining positioning verification capability through non-contact sensing.
Solution Approach 2:
The patent introduces an intermediary detection system that acts as a mediator between the control unit and the workpiece. This intermediary uses non-contact sensing methods to verify positioning accuracy without requiring direct human observation or opening the protective cover, thereby preventing thermal drift while maintaining quality control.
Data Source
AI summary
A machine tool having an onboard measuring device automatically carries out various works which include ultra precision machining, washing and onboard measuring, by a numerical controller, without any interposition of a worker. For achieving this, an operation region of drive axes of the machine tool is previously divided into a machining region, a washing region and a measuring region. Positions of the drive axes are always monitored by the numerical controller, and when the drive axes enter each of the regions, a work allocated to each of the regions is automatically started and the work is continuously carried out until drives axes exit the region.