Inclined Diffusion Plate for Grinding Wheel Fluid Supply
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Solution Overview
Problem
The existing grinding wheels face a challenge in maintaining a sufficient supply of grinding fluid to the workpiece due to increased wear, leading to higher wear volumes and reduced lifespan, with existing solutions either requiring complex adjustments to fluid flow rates or complicating the structure with impellers.
Innovation Solution
A diffusion plate with inclined diffusion holes, allowing for increased fluid diffusion distance without adjusting the supply flow rate, and a grinding wheel with similar diffusion features to ensure consistent fluid supply regardless of grinding stone height, enhancing the grinding wheel's lifespan.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If the height of the grinding stone is increased to extend the grinding wheel lifetime, then the lifetime is improved, but the supply distance of grinding fluid increases causing insufficient fluid supply to the workpiece
Solution Approach 1:
The grinding wheel is segmented into multiple grinding stones arranged along the circumference, allowing fluid to be supplied to multiple contact points simultaneously. This segmentation enables each grinding stone to be shorter while collectively covering the same grinding path, thus maintaining fluid supply effectiveness while extending wheel lifetime through multiple stones.
Solution Approach 2:
Instead of increasing the height (vertical dimension) of a single grinding stone, the solution transitions to arranging multiple grinding stones along the circumferential direction (horizontal dimension). This dimensional shift allows the system to achieve extended effective grinding length without increasing the vertical distance for fluid supply, thereby maintaining adequate fluid delivery to the workpiece.
2Quantity of substance
If the supply flow rate of grinding fluid is adjusted to compensate for increased wear volume, then the fluid supply is improved, but the system complexity increases due to required adjustments
Solution Approach 1:
The diffusion plate with inclined diffusion holes automatically adjusts fluid distribution based on the rotational position and wear state of the grinding wheel. The inclined holes create a self-regulating effect where fluid is directed toward the contact area between grinding stone and workpiece without requiring external flow rate adjustments or complex control systems.
Solution Approach 2:
The diffusion plate changes the flow direction parameter of the grinding fluid through its inclined diffusion holes. Instead of adjusting flow rate magnitude, the system modifies the flow direction to ensure adequate fluid reaches the workpiece, simplifying control while maintaining effective fluid supply.
3Quantity of substance
If impellers are added to the diffusion plate to supply grinding fluid using centrifugal force, then the fluid supply capability is improved, but the structure becomes complicated
Solution Approach 1:
The complex impeller mechanism is extracted and replaced with a simpler diffusion plate structure. The essential function of fluid supply is achieved through the inclined diffusion holes that utilize the existing rotational motion of the wheel to direct fluid toward the workpiece, eliminating the need for separate impeller components while maintaining fluid delivery effectiveness.
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 solution effectively increases the diffusion distance of the grinding fluid, maintaining a consistent supply to the workpiece, reducing wear and extending the grinding wheel's lifespan while simplifying the system and reducing costs.
Implementation Method 1
a technique of supplying the grinding fluid to the wafer ground surface using a centrifugal force generated by rotating a diffusion plate including radially arranged impellers
Data Source
AI summary
A diffusion plate includes a plate member facing an opening end of a supply pipe with a thickness direction thereof substantially parallel with a supply direction of a supply fluid. The plate member is rotatable around a rotation axis substantially parallel with the thickness direction and has a diffusion hole, penetrating in the thickness direction at a position other than a rotation center of the plate member. The diffusion hole has a wall surface defined at a rear side in a rotation direction and has a first wall surface end defined in a facing surface facing the supply pipe, at a rearmost in the rotation direction and a second wall surface end defined in a non-facing surface at a rearmost in the rotation direction. The wall surface is inclined with the first wall surface end being at a front side of the second wall surface end in the rotation direction.