Grinding Machine Head Assembly for Zero-Tolerance Edging

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Solution Overview

Problem

Conventional concrete grinders are limited in their ability to grind concrete surfaces near walls, requiring manual grinding which is labor-intensive and results in visible boundaries between machine and hand-grinded areas.

Innovation Solution

A grinding machine with a head assembly and tooling plate that can be displaced orthogonally to the rotational axis, allowing for zero-tolerance edging and seamless grinding up to wall surfaces, eliminating the need for manual grinding and enhancing visual blending.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional concrete grinders are used, then the machine can grind concrete surfaces, but it cannot grind near walls requiring manual grinding

Engineering Contradiction:
Improveability to grind near wallsVSAvoidneed for manual grinding
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The head assembly is made dynamically adjustable relative to the machine body, allowing it to be displaced orthogonally to the rotational axis. This dynamic positioning enables the tooling plate to reach wall intersections and perform zero-tolerance edging, eliminating the need for manual grinding while maintaining operational flexibility.

Inventive Principle:
Principle #15Dynamics

2Manufacturing precision

If manual grinding is used near walls, then the area can be covered, but visible boundaries appear between machine and hand-grinded areas

Engineering Contradiction:
Improvevisual blending of grind linesVSAvoidtime for manual grinding
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The dynamically adjustable head assembly allows the machine to maintain consistent grinding parameters right up to wall intersections, producing uniform grind lines that blend seamlessly. This eliminates visible boundaries between machine-grinded and previously manual areas while reducing the time required for touch-up work.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If the head assembly is fixed relative to the machine body, then the structure is simple, but the tooling plate cannot reach wall surfaces

Engineering Contradiction:
Improvereach to wall surfaceVSAvoidhead assembly structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The head assembly incorporates orthogonal displacement capability relative to the machine body, enabling the tooling plate to reach wall surfaces for zero-tolerance edging. This dynamic adjustment mechanism provides the necessary reach while maintaining a relatively simple structural design that integrates smoothly with the existing grinder framework.

Inventive Principle:
Principle #15Dynamics

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 saves time and costs by eliminating the need for manual grinding and ensures a visually cohesive finish by allowing the machine to grind directly up to the wall surface, improving efficiency and aesthetics.

Implementation Method 1

Concrete grinding refers to a method that uses a machine equipped with metal bond diamonds for grinding the concrete floor... Concrete polishing continues from the last highest grit metal bond diamond that was used and involves tooling made from resin bond diamonds

Methodology Applied
Scientific EffectAbrasion: Abrasion

Implementation Method 2

by melting the material into the floor using a burnishing pad that rotates at high speed thereby creating heat and melting and driving the material into the tiny pores of the concrete floor

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS10259095B2Method and apparatus for treating a floor surface with zero-tolerance edging
Publication Date: 2019.04.16 ARAMSCO INC
  • US10259095B2 patent drawing
  • US10259095B2 patent drawing
  • US10259095B2 patent drawing

AI summary

A method and apparatus is provided for treating a floor surface with zero-tolerance edging. The apparatus includes a frame and wheels mounted to the frame so the frame can travel over the floor surface. The apparatus also includes a motor mounted to the frame and a head assembly including a bottom plate. The bottom plate is operatively coupled to the motor so that the bottom plate is configured to rotate about a first axis. The bottom plate is positioned such that a tooling plate mounted to the bottom plate is configured to treat the floor surface including an edge of the floor surface intersecting a wall surface.