Flange Yoke Elevated Zone for Balanced Machining

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current flange yoke designs lead to unbalanced machining loads and vibrations during cutting tool operation, resulting in reduced tool lifespan, lower surface quality, extended machining times, increased fluid consumption, and higher production costs due to pulsed operations.

Innovation Solution

The introduction of an elevated zone on the connection surface of the flange yoke, which allows for balanced material removal and reduces vibrations, thereby stabilizing the cutting tool operation and improving surface quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the connection surface is aligned with the assembly base before machining, then the machining setup is simplified, but the cutting tool experiences unbalanced loads and vibrations leading to reduced tool lifespan and lower surface quality

Engineering Contradiction:
Improvemachining setup complexityVSAvoidtool lifespan and surface quality
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent applies preliminary action by creating an elevated zone on the connection surface before the actual machining operation. This pre-formed elevation ensures that when material is removed during machining, the cutting tool maintains balanced contact with the workpiece throughout the process, preventing unbalanced loads and vibrations that would otherwise occur with conventional alignment methods

Inventive Principle:
Principle #10Preliminary action

2Ease of manufacture

If conventional machining methods are used with the connection surface aligned with the assembly base, then the machining process is straightforward, but vibrations cause pulsed operation and extended machining times

Engineering Contradiction:
Improvemachining process simplicityVSAvoidmachining speed and production rate
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The elevated zone is formed as a preliminary feature before final machining operations. This pre-formed structure enables the cutting tool to operate continuously at higher speeds without experiencing pulsed operation or vibrations, thereby extending cutting tool life and reducing total machining time while maintaining process simplicity

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention changes the geometric parameter of the connection surface by creating an elevated zone with specific height and dimensions. This parameter modification transforms the machining process from a vibration-prone operation to a stable, continuous cutting process that can proceed at optimized speeds

Inventive Principle:
Principle #35Parameter changes

3Reliability

If the cutting tool operates at minimum speed to avoid vibrations, then tool breakage is prevented, but machining time increases and production costs rise

Engineering Contradiction:
Improvetool breakage preventionVSAvoidmachining time and production efficiency
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

By pre-forming the elevated zone on the connection surface, the invention eliminates the need to operate at minimum cutting speeds. The elevated structure provides stable support during machining, allowing the tool to run at higher speeds without risk of breakage, thus reducing machining time and associated costs

Inventive Principle:
Principle #10Preliminary action

4Manufacturing precision

If extended machining times are required due to vibration prevention, then surface quality is maintained, but cutting fluid consumption increases and disposal costs rise

Engineering Contradiction:
Improvesurface qualityVSAvoidcutting fluid consumption and disposal cost
Core Design Contradiction:
Manufacturing precisionVSLoss of energy

Solution Approach 1:

The elevated zone is created as a preliminary feature that enables faster machining speeds while maintaining surface quality. This reduces the total machining time required, thereby decreasing cutting fluid consumption and disposal costs without compromising the quality of the machined connection surface

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3581820B1A flange yoke
Publication Date: 2024.01.03 TIRSAN KARDAN SANAYI & TICARET ANONIM SIRKETI
  • EP3581820B1 patent drawingFigure 1
  • EP3581820B1 patent drawingFigure 2
  • EP3581820B1 patent drawingFigure 3

AI summary

Invention is about the flange yoke (A) attaching the driveshaft (B), which provides the rotational motion and power transmission between differential and transmission in motor vehicles, to the vehicle via connection surfaces (20) formed by machining assembly bases (10) by cutting tools (C). The invention characterized by comprising positive raised zones (21) from mentioned assembly bases (10).