Rotor Cutting Tool Structure for Simultaneous Multi-Groove Machining
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Solution Overview
Problem
Current rotor and gear manufacturing methods are inefficient, particularly for high-precision applications, as they require lengthy processing times and are not suited for cutting multiple teeth or grooves simultaneously, leading to increased energy consumption and reduced precision.
Innovation Solution
A cutting tool design method that uses a control unit to produce a cutting tool with preset spiral parameters, allowing for simultaneous cutting of multiple teeth and grooves by scanning workpiece parameters, producing cutting surface and edge parameters, and forming a cutting-tool model to optimize cutting edge geometry and spin rates, enabling higher precision and reduced processing time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a disc milling cutter or finger milling cutter is used for rough machining one groove at a time, then the machining precision can be maintained, but the processing time becomes considerably longer
Solution Approach 1:
The cutting tool is divided into multiple cutting edges arranged along the circumference, where each cutting edge can independently cut a groove. This segmentation allows multiple grooves to be machined simultaneously in one processing cycle, dramatically improving productivity while maintaining precision through controlled engagement of each cutting edge
Solution Approach 2:
Multiple cutting edges are combined into a single cutting tool structure that rotates with the workpiece. The cutting edges are positioned at different angular locations around the tool circumference, enabling simultaneous machining of multiple grooves or teeth on the rotor, thus resolving the contradiction between precision and processing time
2Manufacturing precision
If a single-tooth forming tool is used to process one tooth at a time with dividing head rotation, then the gear tooth precision can be ensured, but the production efficiency is reduced
Solution Approach 1:
The forming tool is segmented into multiple cutting edges distributed around its circumference, with each edge capable of forming a gear tooth. This allows multiple teeth to be formed simultaneously when the tool rotates, eliminating the need for repeated positioning and dividing head operations while maintaining tooth precision through consistent geometric relationships
Solution Approach 2:
The cutting edges are arranged to engage the workpiece continuously during rotation, allowing uninterrupted machining of multiple teeth in sequence as the tool spins. This continuous action eliminates idle time between tooth formations and maximizes production efficiency while maintaining precision through steady-state cutting conditions
3Stability of the object's composition
If whirlwind milling is used for high-speed thread processing, then the dynamic stability is improved, but the ability to process multiple teeth simultaneously is lost
Solution Approach 1:
Multiple cutting edges are merged into a single rotating tool structure, allowing simultaneous engagement with multiple teeth or grooves on the workpiece. This combining approach enables the tool to process multiple features in one operation, achieving both high dynamic stability through balanced rotation and enhanced productivity through parallel machining
Data Source
AI summary
The present invention provides a design method of cutting tool and its structure and the corresponding method of machining rotors. A control unit reads a workpiece parameter of a first workpiece using a sensor and produces an annulus parameter according to the workpiece parameter. The control unit further reads an angle parameter and a displacement parameter to intersect with the annulus parameter for giving a cutting edge parameter. Then the control unit produces a cutting-tool model parameter according to the cutting edge parameter and a spiral parameter. According to the cutting-tool model parameter, a cutting tool is manufactured. Afterwards, the cutting tool and the workpiece installed to a machine tool. By performing synchronous machining on a workpiece using the cutting tool, the workpiece can be cut into a rotor.