Fine-Tuned Slitting Tool With Oblique Biasing for Vibration Stability

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Solution Overview

Problem

Existing slitting tools face challenges in achieving precise positioning and stability of cutting portions during high-precision cutting operations, particularly in maintaining the position against vibrations and ensuring compact construction for narrow slit applications.

Innovation Solution

A slitting tool design featuring a basic body with a biasing screw and obliquely oriented biasing surface, allowing for fine-tuning of cutting portion position through non-axial force application, which reduces relative movement and sensitivity to vibrations, and facilitates a compact construction suitable for narrow slit cutting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a conventional adjustable slitting tool is used, then the cutting portion position can be adjusted, but the tool lacks stability against vibrations during cutting operations

Engineering Contradiction:
Improvecutting portion position precisionVSAvoidstability against vibrations
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The cutting portion is made dynamically adjustable through the biasing screw mechanism that allows position fine-tuning while maintaining stability. The oblique biasing surface creates a dynamic locking effect that prevents vibration-induced loosening while preserving adjustability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The biasing screw acts as an intermediary element between the cutting portion and the tool body, providing controlled adjustment and stability. The oblique biasing surface serves as a mediator that converts rotational motion into linear positioning while preventing backward movement.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Volume of moving object

If the tool is designed for narrow slit applications, then compact construction is achieved, but fine-tuning capability becomes limited

Engineering Contradiction:
Improvetool size for narrow slitsVSAvoidfine-tuning capability
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The biasing screw is nested within the tool body structure, allowing the fine-tuning mechanism to be integrated into the compact tool design without increasing overall size. This enables full adjustment functionality within a compact form factor suitable for narrow slit applications.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The oblique biasing surface introduces a dimensional transformation that converts rotational adjustment into precise linear positioning. This allows fine-tuning capability to be achieved within the constrained space of compact tool design by utilizing angular geometry rather than linear extension.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Device complexity

If the biasing screw is oriented axially, then the structure is simplified, but sensitivity to vibrations increases and relative movement occurs

Engineering Contradiction:
Improvebiasing screw structureVSAvoidvibration sensitivity
Core Design Contradiction:
Device complexityVSObject-affected harmful factors

Solution Approach 1:

The biasing surface is designed with asymmetric oblique orientation rather than symmetric axial alignment. This asymmetric geometry creates a mechanical advantage that locks the cutting portion in position during vibration while still allowing controlled adjustment during operation.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The oblique biasing surface is pre-configured to exert a stabilizing force on the cutting portion before vibrations occur. This preliminary positioning action prevents relative movement during cutting operations by creating a mechanical interlock that resists vibration-induced displacement.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP2872278B1Slitting tool configured for fine-tuning
Publication Date: 2023.07.19 ISCAR LTD
  • EP2872278B1 patent drawingFigure 1A~1C
  • EP2872278B1 patent drawingFigure 2A~2B
  • EP2872278B1 patent drawingFigure 2C~4

AI summary

A slitting tool configured for fine-tuning thereof includes basic body, which in turn includes a body portion and a cutting portion extending therefrom. The slitting tool includes a biasing screw which is seated in a biasing bore and is configured to adjust the position of the cutting portion. The biasing screw is configured to engage a biasing surface of the body portion to adjust the cutting portion's position. The biasing surface is oblique relative to the biasing screw for retarding movement of the biasing screw a fine-tuned position.