Mount Flange Annular Space Suppresses Warpage
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Solution Overview
Problem
The existing mount flange designs for cutting blades on rotating spindles suffer from rearward warpage due to increased wall thickness and loss of weight balance, leading to deformation during spindle rotation.
Innovation Solution
A mount flange design featuring a cylindrical boss portion with an annular space surrounding the spindle, which maintains weight balance by forming a connection between the spindle and the flange through suction passages, preventing rearward warpage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a suction passage is formed in the mount flange to enable automated cutting blade mounting, then the mounting operation can be simplified and performed in shorter time, but the wall thickness of the mount flange must be increased, causing loss of weight balance and rearward warpage of the flange portion during spindle rotation
Solution Approach 1:
The suction passage is segmented into multiple independent passages (first suction passage in the spindle, second suction passage in the mount flange) rather than using a single large passage. This allows the suction function to be distributed across multiple smaller openings, maintaining the automated mounting capability while avoiding the need for a thick wall single passage.
Solution Approach 2:
The patent introduces an intermediary structure (the annular space and multiple suction passages) that mediates between the conflicting requirements of automated mounting and structural integrity. The suction passages act as intermediaries to transfer the cutting blade to the mount flange without requiring a thick-walled single passage design.
2Extent of automation
If the wall thickness of the mount flange is increased to accommodate a suction passage, then automated mounting under vacuum can be achieved, but the weight balance of the mount flange is lost, causing rearward warpage due to spindle rotation
Solution Approach 1:
The suction function is divided into multiple smaller passages distributed in the spindle and mount flange, rather than requiring a single large suction passage that would necessitate increased wall thickness. This segmentation maintains automation capability while preserving weight balance.
Solution Approach 2:
The suction passages are locally positioned in specific areas of the spindle and mount flange rather than requiring uniform wall thickening throughout the entire mount flange structure. This allows automated mounting functionality to be achieved at specific locations without compromising the overall weight balance and structural integrity.
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
The annular space in the mount flange effectively suppresses deformation of the flange portion during spindle rotation, ensuring stable mounting and operation of cutting blades.
Implementation Method 1
a mounting mechanism for fixing a cutting blade to a mount flange under suction by producing a vacuum in the vicinity of a mounting surface of the mount flange
Data Source
AI summary
A mount flange for mounting a cutting blade on a spindle is provided. The cutting blade has a central engaging hole and a peripheral cutting edge. The mount flange includes a cylindrical boss portion having a front portion adapted to be inserted into the engaging hole of the cutting blade and a rear portion whose inner circumferential surface is adapted to be engaged with the spindle, and a flange portion projecting radially outward from the rear portion of the boss portion and having a front surface functioning as a mounting surface adapted to come into abutment against one side surface of the cutting blade. An annular space is formed in the mount flange so as to surround the spindle and open to the inner circumferential surface of the boss portion, thereby suppressing rearward warpage of the outer circumference of the flange portion due to the rotation of the spindle.