Cutting Insert Handling for Precise Automated Tool Exchange

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Solution Overview

Problem

Existing systems face challenges in automating the exchange of cutting inserts due to their fragility and small size, making manual handling complex and prone to misalignment and damage, especially for larger cutting tools.

Innovation Solution

A system comprising a first processing device with a gripping element and a second processing device with a fastening tool, controlled by a controller, allows for automated and precise alignment and attachment of cutting inserts, using suction cups or clamping mechanisms, and includes a storage device with centering devices for orientation and a fixing device for tool alignment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual handling of cutting inserts is used, then flexibility and adaptability are maintained, but precision and reliability deteriorate due to fragility and small size of inserts causing misalignment and damage

Engineering Contradiction:
Improvemanual handling flexibilityVSAvoidinsert alignment precision
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The patent introduces a specialized handling device with a gripping element and fastening tool as an intermediary between the operator and the cutting insert. This device includes a gripping element for holding the insert and a fastening tool for securing it to the tool body, eliminating direct manual handling while ensuring precise alignment through the device's built-in positioning features.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The handling device incorporates self-aligning features where the gripping element and fastening tool are designed to automatically position the cutting insert correctly relative to the tool body. The device's structure ensures proper alignment through geometric constraints and guided movement paths, making precise alignment inherent to the operation rather than requiring manual skill.

Inventive Principle:
Principle #25Self-service

2Manufacturing precision

If automated handling systems are introduced, then precision and reliability improve, but device complexity increases due to the need for specialized processing devices

Engineering Contradiction:
Improveinsert alignment precisionVSAvoidautomation system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent combines multiple functions into a single integrated handling device. The gripping element for holding the insert, the fastening tool for securing it, and the positioning mechanisms are merged into one cohesive device that performs all operations in a single unit, reducing the number of separate components and simplifying the overall system.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The handling device is designed with universal applicability, where the gripping element and fastening tool can handle different types of cutting inserts and tool bodies. The device's design allows it to perform multiple operations (grasping, positioning, fastening) with a single integrated structure, reducing complexity compared to having separate specialized devices for each function.

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

3Device complexity

If cutting inserts are handled manually during exchange, then device complexity is minimized, but productivity deteriorates due to complex procedures and time-consuming operations

Engineering Contradiction:
Improvehandling system complexityVSAvoidinsert exchange speed
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The handling device enables continuous operation by allowing the cutting insert to be grasped, positioned, and fastened in a seamless sequence without interruption. The device's design eliminates idle time between operations, as the gripping element transitions directly to positioning and then to fastening, maintaining continuous useful action throughout the exchange process.

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The automated handling device performs the critical alignment and fastening operations in rapid succession, skipping through the complex manual adjustment steps that would normally take significant time. The device rushes through the positioning and securing phases using pre-programmed movements and automated fastening mechanisms, dramatically reducing the overall exchange time.

Inventive Principle:
Principle #21Skipping (Rushing through)

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

Enables efficient, automated, and precise exchange of cutting inserts, reducing manual effort and ensuring high precision, particularly in environments with multiple machine tools.

Implementation Method 1

wherein the first processing device has a gripping element for holding or securing a cutting insert

Methodology Applied
Scientific EffectSuction: Suction

Data Source

PatentEP4011544B1System and method for inserting or removing machining inserts of a machining tool
Publication Date: 2025.05.21 PREMIUM AEROTECH GMBH
  • EP4011544B1 patent drawingFigure 1~2
  • EP4011544B1 patent drawingFigure 3~5b
  • EP4011544B1 patent drawingFigure 6~7

AI summary

A system (2) for inserting and removing cutting inserts (34) of a cutting tool (12) is proposed, comprising a first processing device (4), a second processing device (6), and a control unit (8) coupled to the first processing device and the second processing device, wherein the first processing device (4) has a gripping element (14) for holding or securing a cutting insert (34), wherein the second processing device (6) has a fastening tool (16) for fastening or releasing a fastening element (36) holding the cutting insert (34), and wherein the control unit (8) is configured to actuate the first processing device (4) to hold the cutting insert (34), and to actuate the second processing device (6) to fasten or release the fastening element (36) while the cutting insert (34) is held.