Grinding Wheel Nozzle Layout for Waste Removal in Internal Grinding
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Solution Overview
Problem
Existing grinding apparatuses face inefficiencies in removing grinding wastes from the grinding stone surface during processing, leading to decreased processing efficiency and shorter grinding stone lifespan.
Innovation Solution
A grinding apparatus with a fluid injection nozzle system that injects high-pressure grinding oil perpendicular to the grinding stone's outer circumferential surface, positioned opposite to the processing point, to efficiently remove stuck wastes by blasting them away.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If grinding oil is supplied only to the processing point between the grinding stone and workpiece, then the grinding process can be maintained, but grinding wastes that stick to the grinding stone surface cannot be efficiently removed
Solution Approach 1:
The patent introduces a fluid injection nozzle as an intermediary device that delivers high-pressure grinding oil directly to the grinding stone surface. This mediator carries the grinding oil from the supply source to the specific location where waste removal is needed, enabling effective cleaning without interfering with the grinding process itself
Solution Approach 2:
The patent extracts the waste removal function from the general grinding process by providing a separate fluid injection system. The high-pressure grinding oil is directed specifically at the grinding stone surface to blast away stuck wastes, separating the cleaning action from the grinding action while both occur simultaneously
2Productivity
If a fluid injection nozzle is added to the grinding apparatus, then grinding wastes can be efficiently removed from the grinding stone surface, but the device complexity increases
Solution Approach 1:
The fluid injection nozzle serves multiple functions: it supplies grinding oil to the grinding stone surface for waste removal, and the same grinding oil system supports the overall grinding process. This multi-functionality justifies the added component by making it work hard in several ways
Solution Approach 2:
The fluid injection nozzle is positioned to deliver grinding oil locally and precisely where needed on the grinding stone surface, rather than applying oil generally throughout the apparatus. This localized approach targets the specific problem area (grinding stone waste accumulation) without requiring comprehensive system modifications
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 system effectively removes grinding wastes, improving processing efficiency and extending the grinding stone's lifespan by preventing clogging and optimizing the use of space in the apparatus.
Implementation Method 1
a fluid injection nozzle (38) that injects a fluid to an outer circumferential surface of the grinding stone (12)
Implementation Method 2
a grinding oil supply apparatus (14) that supplies a grinding oil to a processing point (15)
Data Source
AI summary
In a state a grinding stone (12a) is disposed at an inner diameter side of a workpiece (9a), a grinding apparatus arranges the fluid injection nozzle (38) that consititues the fluid injection apparatus (16) at a position which is at an opposite side in a radial direction of the grinding stone (12a) with respect to a processing point (21), among a space present between the inner circumferential surface of the workpiece (9a) and the outer circumferential surface of the grinding stone (12a). Then, a plurality of injection ports (41) formed in the fluid injection nozzle (38) are arranged in a state facing a portion which is at an opposite side in a radial direction with respect to the processing point (21) among the outer circumferential surface of the grinding stone (12) and injects a grinding liquid to a portion from each of the injection ports (41).