Composite Milling Tool With Replaceable Cutting Elements

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Solution Overview

Problem

Existing milling tools for angle grinders are limited in versatility and durability, primarily designed for specific materials and lack easy replaceability and adjustability of cutting elements, leading to inefficiencies in machining various materials.

Innovation Solution

A milling tool with a composite fibre-reinforced plastic supporting body and replaceable cutting elements, arranged in cutting element chambers, allowing for adjustable cutting edges and easy replacement, featuring a glass fibre fabric structure coated with epoxy resin and fastening mechanisms for secure attachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If cutting elements are made as integral steel pieces for wood machining, then cutting performance for wood is improved, but versatility for other materials is lost

Engineering Contradiction:

Improvecutting performanceVSAvoidmaterial versatility

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The cutting tool is divided into modular cutting elements that can be independently replaced. Each cutting element can be optimized for specific materials while the overall tool maintains versatility through interchangeability of elements.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The supporting body is designed with universal cutting element chambers that can accommodate different types of cutting elements for various materials. The standardized interface allows one tool to perform multiple functions across different material types.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Device complexity

If cutting elements are fixed in the supporting body, then structural simplicity is improved, but replaceability and adjustability are worsened

Engineering Contradiction:

Improvestructural simplicityVSAvoidcutting element replaceability

Core Design Contradiction:

Device complexityVSEase of repair

Solution Approach 1:

The cutting element mounting system transitions from fixed to dynamically adjustable. Cutting elements can be easily inserted, removed, and repositioned within the supporting body, allowing for maintenance and optimization without complex disassembly.

Inventive Principle:

Principle #15Dynamics

3Productivity

If cutting elements protrude significantly beyond the supporting body, then cutting effectiveness is improved, but vulnerability to damage and safety risks increase

Engineering Contradiction:

Improvecutting effectivenessVSAvoiddamage vulnerability

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The cutting elements feature rounded edges and curved surfaces that reduce stress concentration and prevent chipping. The geometric design optimizes cutting action while minimizing vulnerability to damage during operation.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Data Source

PatentUS10259056B2Milling tool for an angle grinders

Publication Date: 2019.04.16 PFERD MILWAUKEE BRUSH CO INC

AI summary

A milling tool for an angle grinder has a supporting body, in the shape of a disk and able to be rotationally driven in a direction of rotation, which has an upper side and an underside. The supporting body is formed as a composite body of fiber-reinforced plastic. Cutting element chambers are formed in the supporting body, open to underside, in each of which one cutting element is replaceably arranged.