Multi-Region Machining Tool With Chip Barrier Separation
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Solution Overview
Problem
In machining tools, chips from one region can interfere with the machining process in another region, particularly when working with materials of different hardnesses, leading to reduced surface quality and coaxiality issues in applications like electric motor stator and rotor housing machining.
Innovation Solution
A chip protection barrier is introduced between the machining regions to prevent chips from one region from entering the other, using a design such as a chip protection sheet or hollow cone that extends radially and circumferentially to shield the softer material from chips of harder materials, ensuring effective separation and maintaining surface quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple machining regions are used to machine different locations simultaneously, then productivity is improved, but chips from one region can penetrate into another region and reduce surface quality
Solution Approach 1:
The tool is divided into multiple independent machining regions (first machining region with first cutting edge, second machining region with second cutting edge) that can simultaneously machine different locations on the workpiece. Each machining region is spatially separated and can operate independently, allowing simultaneous machining of multiple features while maintaining surface quality through proper spatial arrangement and chip flow management.
Solution Approach 2:
A chip protection barrier is introduced as an intermediary element between the first and second machining regions. This barrier prevents chips generated in one machining region from penetrating into another machining region, thereby protecting the surface quality of workpiece features being machined by other cutting edges while maintaining the productivity benefits of simultaneous machining.
2Productivity
If chips from harder material are removed in one region, then machining of harder material is completed, but these chips can damage softer material surfaces in other regions
Solution Approach 1:
A chip protection barrier serves as an intermediary protective element positioned between machining regions. This barrier specifically prevents chips from harder materials (such as steel or cast iron) generated in one machining region from contaminating and damaging softer material surfaces (such as aluminum or plastic) being machined in other regions, thereby eliminating the harmful effect while maintaining high machining speeds.
Solution Approach 2:
Different machining regions are designed with locally appropriate cutting parameters, tool materials, and protective measures. The chip protection barrier is selectively positioned to protect specific softer material regions from harder material chips, while allowing each machining region to operate with optimized parameters for its specific material, thereby maintaining productivity while preventing cross-contamination.
Data Source
AI summary
The invention relates to a tool (1) for machining a workpiece (3), said tool having a longitudinal axis (L), wherein the tool (1) comprises a first machining region (5) and a second machining region (7), wherein the first machining region (5) is spaced apart from the second machining region (7) along the longitudinal axis (L), and wherein a chip protection barrier (9) is located between the first machining region (5) and the second machining region (7), said chip protection barrier being designed to prevent chips removed from a workpiece (3) from passing from one machining region (5, 7) selected from the first machining region (5) and the second machining region (7) into the other machining region (7, 5) selected from the second machining region (7) and the first machining region (5).