Grinding Disc Backing Plate Segmentation
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Solution Overview
Problem
Existing grinding discs lack optimal alignment of the active grinding surface with the workpiece and suffer from reduced tool life due to the flexible nature of stacked discs, leading to fanning-out and pulling-out of disc pieces during use.
Innovation Solution
A grinding disc design featuring a backing plate arranged within the recess formed by the central through openings of circular grinding blanks, ensuring each blank is individually fixed to the plate, with a conical recess design that maximizes contact area and includes a support layer for axial support, enhancing stability and wear resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple circular grinding blanks are stacked in a flexible manner to form a multi-layered packet, then the grinding disc can adapt to workpiece contours and provide continuous grinding surface, but the individual blanks tend to fan-out and pull-out during use, reducing tool life
Solution Approach 1:
The grinding disc is divided into multiple individual circular grinding blanks that are stacked to form a multi-layered packet. Each blank is independently attached to the backing plate, allowing the packet to flex and adapt to workpiece contours while maintaining individual stability of each blank during operation.
Solution Approach 2:
Each circular grinding blank is pre-attached to the backing plate before operation. This preliminary attachment prevents the blanks from fanning out or pulling out during use, ensuring the structural integrity and tool life while maintaining the flexible multi-layered configuration.
2Reliability
If circular grinding blanks are individually fixed to the backing plate, then the integrity of the grinding blanks packet is maintained and tool life is extended, but the device structure becomes more complex
Solution Approach 1:
Instead of attaching the entire packet as a single unit, each circular grinding blank is individually attached to the backing plate. This segmentation approach maintains the integrity of each blank, preventing fanning-out and pulling-out, while the simple repetitive attachment method keeps the overall structure manageable.
Solution Approach 2:
Multiple individual attachment points are combined into a unified backing plate structure. The backing plate serves as a common base for all circular grinding blanks, integrating multiple fixation functions into a single component that maintains the entire packet's stability.
3Strength
If the grinding blanks are arranged in a shingled overlapping manner, then the packet structure is reinforced, but the active grinding surface is not optimally aligned with the workpiece
Solution Approach 1:
The grinding blanks are arranged in a flat stacked configuration rather than shingled overlapping, with each blank individually attached to the backing plate. This segmentation allows each blank to maintain its proper orientation and alignment with the workpiece while the collective packet provides structural reinforcement.
Solution Approach 2:
Instead of overlapping blanks in a diagonal shingled pattern, the blanks are stacked in parallel layers along the axial direction. This dimensional reorganization maintains structural strength through the multi-layered configuration while ensuring each blank's grinding surface is optimally aligned with the workpiece.
Data Source
AI summary
Embodiments described herein generally relate to a grinding disc is being rotatably drivable around an axis of rotation. The grinding disc has a front side as well as a rear side facing away from the front side. The grinding disc further includes a multi-layered circular grinding blank packet with a plurality of circular grinding blanks. The grinding blanks are flatly stacked over each other along the axis of rotation and in which each grinding blank includes a central through opening. The central through openings form together a recess of the circular grinding blank packet. Wherein the grinding disc has a backing plate, which is arranged in the recess, and the circular grinding blanks each are fixed individually to the backing plate.