Noncircular Tool Trace Compensation in Cutting Machines
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Solution Overview
Problem
Existing cutting processing machines, such as laser processing machines, struggle to accurately correct the tool diameter of cutting tools when the cutting processing trace has a noncircular shape, as they are typically designed for circular shapes and lack precise compensation mechanisms.
Innovation Solution
A cutting processing machine and method that include a tool radius compensation calculator, processing trace calculator, and driving controller to generate and control a noncircular tool trace based on product shape information, allowing for precise correction of the tool diameter by displacing a control center point relative to the nozzle center point, enabling the creation of noncircular cutting processing traces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a traditional tool radius compensation method is used assuming a circular cutting processing trace, then the control system remains simple and easy to operate, but the manufacturing precision deteriorates when the cutting processing trace has a noncircular shape
Solution Approach 1:
The patent applies dynamics by transitioning from a static circular tool radius compensation model to a dynamic noncircular tool trace compensation model. The control system now adapts the tool trace shape based on the actual cutting requirements, allowing the compensation parameters to change dynamically along the tool path to match the noncircular geometry, thereby achieving high precision without requiring complete system redesign
Solution Approach 2:
The patent utilizes parameter changes by modifying the tool radius compensation parameters from constant circular values to variable noncircular values. The system calculates and applies different compensation parameters at different positions along the tool path, enabling precise control of the noncircular cutting trace while maintaining a relatively simple control architecture through parameterized modeling
2Adaptability or versatility
If the cutting processing machine is designed for circular cutting traces only, then the device complexity remains low, but the adaptability deteriorates when noncircular shapes are required
Solution Approach 1:
The patent implements universality by creating a tool radius compensation system that can handle both circular and noncircular cutting traces through a unified control framework. The same control device performs both traditional circular compensation and advanced noncircular compensation, making the system multi-functional without requiring separate dedicated systems for different trace types
Solution Approach 2:
The system achieves adaptability through dynamic adjustment of the tool trace parameters. By allowing the tool trace to transition from fixed circular geometry to variable noncircular geometry based on processing requirements, the system gains versatility while maintaining a single adaptable control architecture rather than multiple fixed systems
Data Source
AI summary
A cutting processing machine includes a processing machine body and an NC device. The NC device includes a tool diameter correction amount calculator, a processing trace calculator, and a driving controller. The processing machine body includes a processing unit and a tool trace controller. In a case where, as a processing condition, an offset amount between a control center point of a tool trace and a center point of a nozzle is set, the processing trace calculator generates a tool trace control signal for causing the control center point to be displaced relative to the center point of the nozzle by the offset amount in a predetermined direction. The processing machine body controls the tool trace based on the tool trace control signal such that the control center point is displaced relative to the center point of the nozzle in the predetermined direction.