Cutting Apparatus Suction Blade Mounting
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Solution Overview
Problem
Conventional cutting apparatuses with two facing spindles are limited in reducing the distance between cutting blades, which hinders efficient cutting operations due to the mounting mechanism that requires grasping the hub of the annular base, preventing the cutting edges from being positioned as close as possible.
Innovation Solution
The cutting apparatus employs a suction-based holding mechanism using negative pressure to secure the cutting blades to the flange mechanisms, allowing the cutting edges to face each other closely without the need for a fixing nut, thereby minimizing the distance between the blades.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a hub blade with a hub section is used and mounted by grasping the hub, then the cutting blade can be securely fixed to the spindle, but the distance between cutting edges on opposite spindles cannot be reduced to the utmost limit
Solution Approach 1:
The invention extracts and removes the hub section from the cutting blade structure. By eliminating the hub that protrudes from the rear surface of the annular base, the mounting structure is simplified to only the necessary flange section, allowing the cutting edges to be positioned as close as possible without the interference of hub sections from opposite blades
Solution Approach 2:
The invention replaces the mechanical grasping and mounting operation (which required hub sections) with a suction-based holding mechanism. The suction holding mechanism uses negative pressure applied to the front surface of the flange section to secure the cutting blade, eliminating the need for hub sections and enabling minimal distance between cutting edges
2Productivity
If the distance between cutting blades is reduced to the utmost limit, then processing feeding amount is minimized and efficient processing is accomplished, but the mounting mechanism prevents achieving this minimal distance
Solution Approach 1:
The invention extracts unnecessary structural elements (hub sections) from the mounting mechanism, retaining only the essential flange section and suction holding mechanism. This simplification allows the cutting blades to be positioned at minimal distance, reducing processing feeding amount and enhancing productivity
Solution Approach 2:
The invention introduces a pneumatic suction holding mechanism that uses negative pressure to secure the cutting blade to the spindle. This pneumatic system replaces complex mechanical mounting structures, enabling the cutting edges to be positioned as close as possible while maintaining secure fixation, thus minimizing processing feeding and improving efficiency
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
This configuration allows the cutting blades to be positioned at the utmost limit proximity, enhancing operational efficiency by enabling the cutting of division lines of equivalent lengths with minimized processing feeding, thus improving the overall cutting process.
Implementation Method 1
a suction holding mechanism for holding the cutting blade securely by application of negative pressure
Data Source
AI summary
A cutting apparatus includes: a processing feeding unit that performs processing feeding of a chuck table adapted to hold a workpiece; and two cutting units in which rotational axes of two spindles coincide with each other and cutting blades mounted to the spindles face each other. Each cutting unit includes a flange mechanism in which the cutting blade having a cutting edge fixed to an outer peripheral edge of a one-side outer surface of a circular disk-shaped base is fixed to the spindle. The flange mechanism is fixed to a tip of the spindle, sucks an other-side outer surface of the base of the cutting blade, and fixes the cutting blade to the spindle with the one-side outer surface of the base exposed to the side of the tip of the spindle, and the one-side outer surfaces of the cutting blades fixed to the two cutting units.