Numerical Controller for Bidirectional Machine Tool Cutting Paths
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Solution Overview
Problem
Existing numerical controllers for machine tools face challenges in efficiently generating machining programs that include both forward and return cutting operations, especially for complex shapes, due to the difficulty in manually creating such programs and the high cost of introducing computer-aided manufacturing (CAM) software.
Innovation Solution
A numerical controller is designed to analyze machining programs, read the shape of the removal region and machining conditions, and generate both forward and return cutting operations, ensuring the tool intersects with the removal region without exceeding the specified depth of cut, thereby reducing the need for expensive CAM software.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If cutting operations are performed in both forward and return directions to shorten machining time, then productivity is improved, but the complexity of creating the machining program increases significantly
Solution Approach 1:
The numerical controller automatically generates the machining program by itself, analyzing the workpiece shape data and machining conditions to create cutting operations in both forward and return directions without requiring external CAM software or manual programming intervention
Solution Approach 2:
The system performs preliminary analysis of the workpiece removal region and machining conditions before generating the cutting operations, pre-calculating the optimal path and parameters for both forward and return cutting directions to simplify the overall programming process
2Ease of operation
If CAM software is introduced to facilitate program creation, then ease of operation is improved, but the cost of the system increases
Solution Approach 1:
The numerical controller performs self-programming by automatically analyzing workpiece geometry and machining conditions to generate cutting paths, eliminating the need for separate expensive CAM software while maintaining ease of operation
Solution Approach 2:
The numerical controller integrates multiple functions including workpiece shape analysis, machining condition processing, and automatic program generation into a single system, replacing the need for separate CAM software while providing comprehensive machining capabilities
Data Source
AI summary
The present invention provides a device for performing numeric control of a machine tool, wherein said device generates an outward-direction cutting action and a return-direction cutting action. In the device for performing numeric control of a machine tool, a tool and a workpiece are caused to move back and forth relative to one another while the tool and workpiece are caused to rotate relative to each other, so that the workpiece is cut by both the outward direction cutting action and the return direction cutting action, the device for performing numerical control of a machine tool comprising: a removal region input unit that analyzes a cutting program and reads the shape of the workpiece removal region to be removed by cutting; a processing criteria input unit that reads the processing criteria for cutting including at least the cutting depth of the tool in the outward direction cutting action and the cutting depth of the tool in the return direction cutting action; and an action generating unit that generates the outward direction cutting action and the return direction cutting action so that, on the basis of the removal region shape and processing criteria, the tool intersects the uncut portion of the removal region, and the intersecting amount does not exceed the outward direction cutting depth and the return direction cutting depth in the processing criteria.