Blade Flange Recess Structure for In-Cut Burr Removal
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Solution Overview
Problem
Existing cutting apparatuses face challenges in effectively removing cutting swarf and metallic burrs during the cutting of workpieces, particularly package substrates, leading to potential mounting failures due to burrs, and require additional cleaning steps that prolong processing time.
Innovation Solution
A flange design for fixing a cutting blade to a spindle in a cutting apparatus, featuring recessed spaces on both sides of the cutting blade to direct cutting liquid back onto the cutting region, enhancing the removal of burrs and swarf during the cutting process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If cutting water is supplied continuously to the cutting blade during cutting, then processing heat is cooled and cutting swarf is washed away, but cutting swarf on the workpiece cannot be sufficiently removed
Solution Approach 1:
The cutting liquid supply system is segmented into multiple nozzles positioned at different locations (front, rear, and side nozzles) to deliver cutting liquid to different regions of the cutting blade and workpiece, enabling comprehensive coverage that removes both cooling and cleaning functions effectively
Solution Approach 2:
A guide wall is introduced as an intermediary structure that redirects cutting liquid from the nozzles toward the cutting region and workpiece surface, ensuring that the cutting liquid effectively reaches areas where swarf accumulates, thereby enhancing swarf removal capability
2Manufacturing precision
If a spinner cleaning apparatus is used to clean the workpiece after cutting, then cutting swarf is removed, but metallic burrs on electrodes cannot be effectively removed and mounting failure may occur
Solution Approach 1:
The cutting liquid supply system performs preliminary cleaning action during the cutting process itself, removing burrs and swarf from the workpiece surface before the cutting operation completes, thereby eliminating the need for subsequent cleaning operations and ensuring mounting reliability
3Manufacturing precision
If cleaning is performed after cutting to remove burrs and swarf, then processing quality is maintained, but processing time is prolonged
Solution Approach 1:
The cutting liquid supply operates continuously during the cutting process, maintaining uninterrupted cleaning action throughout the cutting operation, which eliminates the need for separate post-cutting cleaning steps and reduces total processing time while maintaining quality
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 flange design allows for more effective supply of cutting liquid to the cutting region, effectively separating and removing burrs and swarf, thereby reducing the time required for post-cutting cleaning.
Implementation Method 1
the cutting liquid supplied from the cutting liquid supply nozzle to the cutting blade is splashed back in the recessed spaces to be supplied to a cutting region of an upper surface of the workpiece
Data Source
AI summary
Recessed spaces are formed along a circumferential direction on the front side and the rear side of an axial direction of a cutting blade. At the time of cutting a workpiece, a cutting liquid supplied from a cutting liquid supply nozzle to an outer circumferential part of the cutting blade enters the recessed spaces and is splashed back by an outer circumferential surface, to be supplied to a cutting region of an upper surface of the workpiece. As a result, the cutting liquid can efficiently be made to flow toward and collide against burrs of electrodes, the burrs being generated by cutting, so that the burrs can be separated and removed from the upper surface of the workpiece.