Grinding Tool Wear Protection via Replaceable Nose Insert
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Solution Overview
Problem
Current grinding tools with peaked cutting edges and pointed noses suffer from wear on the tool body, leading to premature holder replacement due to material cutting grooves, which is time-consuming and inefficient.
Innovation Solution
A grinding tool design featuring a tool body with a pocket-mounted plurality of inserts, each with a base mounting surface, a main cutting face, and a leading face terminating in a protective base flange that covers the mounting surface, providing wear protection and improved efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a pointed nose configuration is used on grinding inserts, then the insert can effectively cut material, but the tool body becomes exposed to wear and material-induced grooves
Solution Approach 1:
The patent introduces a nose insert as an intermediary component between the material and the tool body. This nose insert absorbs the wear and cutting stresses, protecting the tool body from direct contact with abrasive materials. The replaceable nose insert serves as a mediator that sacrifices itself to preserve the main tool body, resolving the contradiction between cutting efficiency and tool body durability.
Solution Approach 2:
The nose insert is designed as a disposable or replaceable component that undergoes wear during operation. Instead of wearing down the expensive tool body, the cheaper nose insert is periodically replaced. This approach maintains high cutting efficiency while preserving the tool body's structural integrity and extending its service life.
2Ease of operation
If the tool body is directly exposed to material during grinding operations, then the insert can perform cutting functions, but the tool holder experiences premature wear requiring frequent replacement
Solution Approach 1:
The nose insert acts as a protective intermediary between the grinding material and the tool holder. By positioning the nose insert at the leading edge, it intercepts abrasive materials before they can contact the tool body and tool holder. This mediator approach ensures cutting functionality is maintained while significantly extending the service life of the stationary tool holder.
3Strength
If welding is used to attach tool holders to the drum or table, then secure attachment is achieved, but servicing becomes time-consuming
Solution Approach 1:
The grinding tool is segmented into modular components: the tool holder, the inserts, and the nose insert. This segmentation allows individual components to be replaced independently without affecting the entire assembly. The nose insert can be replaced separately from the tool holder, dramatically reducing servicing time while maintaining secure attachment through the pocket mounting system.
Data Source
AI summary
A grinding tool for impinging a material includes a tool body having a top surface and a bottom surface, the tool body defining a pocket at a leading edge of the top surface and the pocket having a mounting surface. The grinding tool also includes a plurality of inserts mounted on the mounting surface of the pocket of the tool body, wherein each of the plurality of inserts includes a base mounting surface adjacent the mounting surface of the pocket of the tool body, a main cutting face generally opposite the base mounting surface, and a leading face positioned adjacent the leading edge of the top surface of the tool body. The leading face terminates in a protective base flange that is structured and arranged to substantially cover the mounting surface of the pocket of the tool body adjacent the leading edge of the tool body.