Machining Device With Swivel Arm And Pressing Unit

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Solution Overview

Problem

Manual surface machining with cutting discs is labor-intensive, hazardous, and inefficient, especially in contaminated areas like nuclear power plants, due to the need for physical effort and protective measures, and existing automation solutions do not provide sufficient time savings.

Innovation Solution

A device with a cutting disc mounted on a swivel arm and carriage system, allowing remote-controlled movement and adjustable milling depth, which includes a controllable pressing unit and suction system for efficient material removal, enabling faster processing and improved safety by reducing operator exposure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual surface machining is performed with cutting discs, then the processing can be done with simple equipment, but the labor intensity is high and processing speed is low (about one square meter per hour)

Engineering Contradiction:
Improveprocessing speedVSAvoidlabor intensity
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The patent replaces manual mechanical operation with an automated mechanical system consisting of a motor-driven cutting disc mounted on a swivel arm. The system uses electric motors to drive both the cutting disc rotation and the swivel arm movement, eliminating the need for manual effort while achieving processing speeds of up to twenty square meters per hour.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces dynamic capabilities through the swivel arm mechanism that allows the cutting disc to pivot and follow the contours of surfaces. The swivel arm can be adjusted to different angles and positions, enabling the system to adapt to various surface geometries including ceilings, walls, and floors, thereby maintaining high productivity across different application scenarios.

Inventive Principle:
Principle #15Dynamics

2Reliability

If automated machining is implemented with guide rails and remote control, then safety is improved and manual effort is reduced, but the assembly and repositioning of guide rails requires significant time

Engineering Contradiction:
ImprovesafetyVSAvoidassembly and repositioning time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent creates a universal machining system that can process multiple surface types (ceilings, walls, floors) and geometries through the swivel arm mechanism. This eliminates the need for different guide rail systems for different applications, as the swivel arm can adapt to various surface orientations and shapes, reducing assembly and repositioning time while maintaining safety through remote operation.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent segments the machining system into independent functional components: the cutting disc assembly, the swivel arm mechanism, and the carriage system. This modular design allows each component to be optimized independently and facilitates quick repositioning and reconfiguration compared to rigid guide rail systems, reducing setup time while maintaining operational safety.

Inventive Principle:
Principle #1Segmentation

3Object-affected harmful factors

If cover hoods and suction devices are added to reduce dust pollution, then the dust load is reduced, but the overall weight of the cutting tool increases requiring greater effort

Engineering Contradiction:
Improvedust pollutionVSAvoidcutting tool weight
Core Design Contradiction:
Object-affected harmful factorsVSWeight of moving object

Solution Approach 1:

The patent replaces the manual effort required to handle heavy dust collection equipment with an automated motor-driven system. The suction device and cover hood are integrated into the mechanically supported carriage and swivel arm system, eliminating the need for operators to manually support their weight, thereby reducing labor intensity while effectively controlling dust pollution.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 device significantly increases processing speed, reduces manual effort, and enhances safety by allowing remote operation, achieving a removal rate of up to twenty square meters per hour and efficient dust management, compared to conventional manual methods.

Implementation Method 1

The cutting disc is a milling or grinding disc, for example, which is used for processing wall, floor or ceiling surfaces

Methodology Applied
Scientific EffectAbrasion: Abrasion

Implementation Method 2

the pane can be moved by means of a controllable pressing unit in a pressing direction perpendicular to the plane of the pane

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Implementation Method 3

the removed material represents a dust load which, in the case of contaminated surfaces, also pollutes the indoor air through contamination

Methodology Applied
Scientific EffectSuction: Suction

Data Source

PatentEP2695707B1Device for machining surfaces
Publication Date: 2016.03.23 BRAUN MASCHFAB
  • EP2695707B1 patent drawingFigure 1~5
  • EP2695707B1 patent drawingFigure 6~10
  • EP2695707B1 patent drawingFigure 11~12

AI summary

The device has a metal-cutting disk (8) displaced by utilizing a rotary drive in rotation. The metal-cutting disk is rotatably supported at one end of a pivotal arm (7), where another end of the pivotal arm is swingably linked at a carriage (6). The rotary drive for the disk and a pivot drive are arranged at the carriage or at the pivotal arm. The carriage is moveably located on a carrier (4) in a traverse direction parallel to a disk plane. The carrier is moveably arranged at cross beams (2) i.e. rails, by a cross beam carriage (5). A pressing unit is firmly connected with the beam carriage.