Laser Cutting Trace Compensation for Noncircular Tool Diameter Correction
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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 traces and lack precision in tool radius compensation.
Innovation Solution
A cutting processing machine and method that utilize a tool trace controller to oscillate the laser beam in a noncircular pattern, allowing for precise correction of the tool diameter by generating tool radius compensation information based on the noncircular tool trace, even when the positional coordinates of the cutting tool are fixed.
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 device complexity remains simple, 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 system dynamically adjusts the compensation parameters based on the actual noncircular tool trace shape, allowing the compensation mechanism to adapt to varying geometries rather than assuming a fixed circular pattern. This enables high-precision tool diameter correction for noncircular traces while managing system complexity through programmable control.
Solution Approach 2:
The patent implements parameter changes by modifying the tool radius compensation parameters from fixed circular values to variable noncircular parameters. The system calculates and applies different compensation values at different angular positions around the tool trace, transforming the compensation approach from a single-radius model to a multi-parameter model that accounts for the varying distance from the center to the tool trace perimeter at different angles. This enables precise correction of tool diameter for noncircular shapes.
2Manufacturing precision
If the cutting tool positional coordinates are kept fixed, then the ease of operation is maintained, but the manufacturing precision deteriorates for noncircular cutting processing traces
Solution Approach 1:
The patent applies mechanics substitution by replacing the mechanical approach of physically adjusting cutting tool coordinates with a computational approach. Instead of mechanically repositioning the tool for noncircular traces, the system uses computer-based calculations to determine the appropriate tool radius compensation parameters. This substitution maintains the simplicity of fixed tool positioning while achieving high precision through software-based parameter adjustment rather than mechanical modification.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables high-precision correction of the tool diameter for cutting tools with noncircular cutting processing traces, improving the accuracy of cutting processing by dynamically adjusting the tool radius compensation based on the specific shape of the tool trace.
Implementation Method 1
a laser processing machine that irradiates a processing object with a laser beam for processing it
Data Source
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AI summary
A cutting processing machine (1) includes an NC device (200). The NC device (200) includes a tool diameter correction amount calculator (201), a processing trace calculator (202), and a driving controller (203). In a case where a processing condition (CP) includes cutting tool change information set with a change of a tool trace (TP) during cutting processing and set such that, in a case where the tool trace (TP) is changed, a control center point (CL) is fixed relative to a surface to be processed of a final processed product, the tool diameter correction amount calculator (201) recognizes a plurality of tool traces (TP) included in the cutting tool change information and generates tool diameter correction information (TC) that includes the plurality of tool traces (TP), positions formed with a surface to be processed (MPL), the control center point (CL), and tool diameter correction values (MVL). The processing trace calculator (202) generates a tool diameter correction control signal (TS).