Mill Spindle Fan Structure for Self-Powered Debris Removal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Milling machines face challenges in efficiently removing debris during the machining process, which can accumulate along the tool path or embed in the workpiece surface, affecting surface quality and tool wear, particularly when working with materials like clay or metal.
Innovation Solution
A mill fan is integrated with the milling tool, featuring a unique blade configuration and sleeve design that generates airflow to clear debris by rotating at the same speed as the tool, utilizing the tool's rotational energy without additional power sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If a vacuum source is used to collect debris, then debris removal capability is improved, but device complexity and cost increase
Solution Approach 1:
The mill fan utilizes the rotational energy of the milling tool itself to generate airflow for debris removal, eliminating the need for separate vacuum sources or blowers. The fan is directly mounted on the tool and rotates with it, converting the tool's rotational motion into useful airflow that clears debris from the cutting zone and workpiece surface.
Solution Approach 2:
The mill fan integrates multiple functions into a single component: it serves as both a debris removal device and a tool accessory. By combining the fan blades, attachment sleeve, and outer sleeve into a unified structure that mounts directly on the tool, the system eliminates separate debris management equipment while maintaining effective debris clearance.
2Object-generated harmful factors
If additional power sources are added for debris removal, then debris clearance effectiveness is improved, but energy consumption and device complexity increase
Solution Approach 1:
The mill fan is powered by the rotational energy of the milling tool itself, requiring no additional motors or power sources. The fan blades are positioned and dimensioned to efficiently convert the tool's rotational motion into directed airflow that clears debris from the cutting zone and workpiece surface.
3Object-generated harmful factors
If fan blades are positioned closer to the tool, then debris removal at the cutting zone is improved, but risk of interference with cutting operation increases
Solution Approach 1:
The fan blades are strategically positioned at specific radial and axial locations relative to the tool to optimize debris removal while avoiding interference with the cutting operation. The blade geometry and positioning create airflow patterns that target debris ejection without disrupting the cutting zone or workpiece engagement.
Solution Approach 2:
The mill fan utilizes the axial dimension by extending the outer sleeve axially beyond the attachment sleeve, positioning the fan blades to draw air from the cutting zone and expel it axially rearward. This axial airflow component effectively removes debris without requiring the fan to occupy radial space that would interfere with cutting.
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
Effectively removes debris from the tool path and workpiece surface, enhancing surface quality and reducing tool wear by leveraging the tool's rotational energy to generate airflow.
Implementation Method 1
A mill fan is integrated with the milling tool, featuring a unique blade configuration and sleeve design that generates airflow to clear debris by rotating at the same speed as the tool, utilizing the tool's rotational energy without additional power sources.
Data Source
AI summary
A mill fan includes fan blades having a radially inner end and a radially outer end and an attachment sleeve having a radially inner surface and a radially outer surface. The radially inner surface includes a tool contact surface and the radially outer surface is in engagement with the radially inner ends of the fan blades. Them mill fan also includes an outer sleeve connecting the radially outer ends of the fan blades that forms a ring.