Machine Tool Speed Profile Control Under Load Limits
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Solution Overview
Problem
Current processing machines for automatic workpiece processing lack optimization in their setting process, leading to suboptimal production speed and productivity, particularly in material separation tasks during casting post-processing.
Innovation Solution
A method that records load-dependent machine operating parameters to adapt the production speed profile for approaching and processing target machining points, optimizing speeds and accelerations based on the machine's load conditions, allowing for more efficient material separation and improved productivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the machine operates at high speed during material separation, then productivity increases, but the machine may exceed its load limit range causing operational issues
Solution Approach 1:
The patent applies dynamics by making the machine operating parameters adaptive rather than static. The control device continuously monitors load-dependent parameters and dynamically adjusts movement speeds and accelerations during the machining process. This allows the system to operate at high speeds when load conditions permit while automatically reducing speeds when approaching load limits, thus maintaining both high productivity and reliable operation within specified load ranges.
2Productivity
If the machine operates at high load to increase material removal rate, then productivity improves, but the machine may exceed safe operating limits
Solution Approach 1:
The patent implements feedback control by continuously monitoring load-dependent machine operating parameters during material separation. The control device uses this real-time feedback information to adjust movement profiles, ensuring that the machine operates at high load levels to maximize material removal rate while never exceeding safe operating limits. The system automatically modulates speeds and accelerations based on actual load conditions, maintaining optimal productivity within safe boundaries.
3Loss of time
If fixed speed profiles are used for all machining operations, then device complexity is reduced, but production time increases due to inability to optimize for varying load conditions
Solution Approach 1:
The patent applies parameter changes by transitioning from fixed speed profiles to adaptive speed profiles that automatically adjust movement parameters based on real-time load conditions. The control device modifies speeds and accelerations during machining operations according to actual machine load, enabling optimal production times without requiring complex manual speed profile management. This automatic parameter adaptation reduces production time while keeping the control system relatively simple through rule-based adaptive control.
Data Source
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AI summary
Method for setting up a machine tool (1) for automatic machining, in particular cutting material volume, of a workpiece (33) by a machine-controlled tool (25) of the machine tool (1) comprising the steps: - manufacturing (400) a workpiece (55) with a plurality of target machining points (43) for machining, wherein manufacturing comprises approaching the target machining points (43) and machining the workpiece (33) at the target machining points (43) with at least one tool (25), - recording (500) a load-dependent machine operating parameter (M) during manufacturing, - adjusting (600) a manufacturing speed profile (P) with which a sequence of approach steps and machining steps is carried out during manufacturing, depending on the determined machine operating parameter (M) for manufacturing another workpiece (33).