Tool Holder Data Carrier Sleeve for Balanced RFID Mounting

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Solution Overview

Problem

The secure and permanent attachment of data carriers to tool holders is challenging due to issues with positioning, shielding, and adhesive detachment, leading to potential risks and fluctuations in data carrier reading accuracy.

Innovation Solution

A sleeve-shaped base body with radially inward and outward projections provides a stable and quick attachment mechanism, allowing the data carrier to be securely held within a tool holder, even at high speeds, and is designed to be easily readable, with optional elastic features and a spacer element for enhanced positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the data carrier is mounted further away from the axis of rotation on the outside of the holder, then the data reading is facilitated, but the tool holder's balance is affected

Engineering Contradiction:
Improvedata reading accessibilityVSAvoidtool holder balance
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The invention transitions from radial mounting (affecting balance) to axial mounting within the bore (preserving balance). The data carrier is mounted in the axial direction within the tool holder's bore, eliminating the radial offset that causes balance issues while still allowing data reading through the holder wall.

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

Solution Approach 2:

The invention introduces a specialized mounting device as an intermediary component that bridges the data carrier and the tool holder. This device includes a body with a data carrier holder and fastening elements that secure the carrier within the bore, enabling stable axial mounting while maintaining balance.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Stability of the object's composition

If the data carrier is mounted close to the axis of rotation within the tool holder, then the tool holder's balance is maintained, but the data carrier becomes unreadable due to shielding

Engineering Contradiction:
Improvetool holder balanceVSAvoiddata reading accessibility
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The mounting device serves as an intermediary that positions the data carrier optimally within the bore - close enough to the axis for balance but with controlled offset and orientation to enable reading. The device includes positioning elements that ensure the carrier's antenna is oriented toward the reading device while maintaining rotational balance.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention applies local quality by creating a specialized mounting environment within the bore that differs from the bulk holder material. The mounting device provides localized structural support and positioning features that enable reading capability at specific locations without affecting the overall holder balance.

Inventive Principle:
Principle #3Local quality

3Ease of manufacture

If adhesive bond is used to attach the data carrier, then the attachment process is simple, but the bond loosens over the tool holder's lifespan causing ejection

Engineering Contradiction:
Improveattachment process simplicityVSAvoidattachment permanence
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The invention replaces the chemical adhesive bonding system with a mechanical fastening system. The mounting device includes fastening elements such as clips, lugs, or interference-fit features that mechanically secure the data carrier to the holder, eliminating the reliability issues of adhesive degradation while maintaining manufacturing simplicity.

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

Solution Approach 2:

The mounting device incorporates dynamic fastening features that can accommodate minor dimensional variations and thermal expansion/contraction cycles. The fastening elements are designed with appropriate clearance and elasticity to maintain secure attachment under varying operational conditions throughout the tool holder's lifespan.

Inventive Principle:
Principle #15Dynamics

4Adaptability or versatility

If adhesive bond quality varies depending on personnel and care, then manufacturing flexibility is maintained, but attachment reliability fluctuates

Engineering Contradiction:
Improvemanufacturing flexibilityVSAvoidattachment consistency
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The invention replaces the skill-dependent adhesive application process with a mechanical fastening system that provides consistent attachment quality regardless of operator skill. The mounting device features standardized fastening elements that ensure uniform attachment reliability across all manufacturing operations while maintaining flexibility in implementation approaches.

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

Ensures a secure, permanent, and easy attachment of data carriers to tool holders, maintaining data accuracy and availability while preventing detachment, and allowing for precise positioning to facilitate reading, even under high centrifugal forces.

Implementation Method 1

the data carrier to be securely held in the device by the radially inwardly projecting projection in a form-fitting manner

Methodology Applied
Scientific EffectForm-fitting engagement: Mechanical Fastener

Implementation Method 2

the device to be reliably and quickly attached in a corresponding data carrier holder within a tool holder by means of the radially outwardly projecting projection

Methodology Applied
Scientific EffectMechanical engagement: Mechanical Fastener

Implementation Method 3

the at least one radially outwardly projecting projection can be designed to be elastically movable in the radial direction

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 4

with a spacer element for enhanced positioning

Methodology Applied
Scientific EffectMechanical spacing: Mechanical Fastener

Data Source

PatentEP3416774B1Device for securing a data carrier to a tool holder, tool holder and tool system
Publication Date: 2022.11.30 FRANZ HAIMER MASCHINENBAU KG
  • EP3416774B1 patent drawingFigure 1~2
  • EP3416774B1 patent drawingFigure 3~4
  • EP3416774B1 patent drawingFigure 5~6

AI summary

The invention relates to a device (4) for securing a data carrier (3) to a tool holder (2). In order to allow the data carrier (3) to be easily secured to the tool holder (2) in a reliable and permanent manner, the device (4) comprises a sleeve-shaped main body (14) which has, at a first end (15), at least one projection (16) projecting radially inwards and has, in the region of a second end (17) opposite the first end (15), at least one projection (18) projecting radially outwards.