Tool Warehouse Layout Using Actual Tool Geometry

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Solution Overview

Problem

Existing tool warehouses in machining centers have inefficiencies due to unused housings and increased tool change times because they consider the maximum overall size of tools, leading to reduced storage capacity and longer access times.

Innovation Solution

A method and working center that utilize a logic control unit to optimize tool arrangement in warehouses by considering the actual shape and size of each tool, calculating optimal positions to maximize housing usage and minimize collisions, using digital models and scanning systems to determine precise tool dimensions and positions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the maximum overall size of tools is considered for arrangement, then collisions between tools are prevented, but the number of usable housings decreases

Engineering Contradiction:
Improvecollision preventionVSAvoidnumber of usable housings
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The patent applies local quality by considering the actual shape and dimensions of each tool rather than using a uniform maximum size envelope. The control unit calculates precise collision-free zones for each tool based on its specific geometry, allowing adjacent housings to be utilized when the actual tool dimensions permit, thereby increasing the number of usable housings while maintaining collision prevention

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The invention changes the parameter from maximum overall size to actual tool dimensions and shape characteristics. By using the real geometric parameters of each tool in the arrangement calculation, the system optimizes housing utilization while ensuring no collisions occur during tool operations

Inventive Principle:
Principle #35Parameter changes

2Reliability

If adjacent housings are left free to prevent collisions, then tool safety is ensured, but storage capacity is reduced

Engineering Contradiction:
Improvetool safetyVSAvoidstorage capacity
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

Instead of leaving entire adjacent housings free, the system calculates the actual collision-free zones based on each tool's specific shape and size. This allows tools to be placed in housings that would traditionally be left empty, maximizing storage capacity while maintaining tool safety through precise spatial arrangement

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The control unit performs preliminary calculation of the optimal arrangement before tools are physically placed in housings. By pre-determining the safe and optimal positions based on actual tool dimensions, the system ensures tool safety while maximizing the utilization of available housing space

Inventive Principle:
Principle #10Preliminary action

3Device complexity

If tools are arranged based on maximum size, then collision avoidance is simplified, but tool change times increase due to multiple warehouse accesses

Engineering Contradiction:
Improvearrangement complexityVSAvoidtool change time
Core Design Contradiction:
Device complexityVSLoss of time

Solution Approach 1:

The system performs preliminary optimization of tool arrangement based on actual tool dimensions and machining requirements. By pre-calculating the optimal positions and organizing tools efficiently in the warehouse, the system reduces the number of warehouse accesses needed during tool changes, thereby reducing tool change time despite the increased complexity of the arrangement calculation

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4174594B1Method for arranging tools in a warehouse and working center implementing such method
Publication Date: 2026.03.04 SCM GRP
  • EP4174594B1 patent drawingFigure 1~2
  • EP4174594B1 patent drawingFigure 3~4
  • EP4174594B1 patent drawingFigure 5~6(b)

AI summary

The present invention relates to a Method for arranging tools inside at least one warehouse (4), comprising a plurality of housings (41a,b,...,n), of a working center (C) for working pieces made of wood, plastic, metal, glass, fiberglass, ceramic and the like, characterized in that it comprises the following steps: a. receiving data relating to the shape and the size of at least one first (33k) and second (33j) tool; b. receiving data relating to at least the number of said housings (41a,b,...,n) and their reciprocal position in said at least one warehouse (4); c. verifying, according to said data received in said steps a. and b., that at least one arrangement of said at least one first (33k) and second (33j) tool in said plurality of housings (41a,b,...,n) complies with at least one first criterion; d. housing said at least one first (33k) and second (33j) tool in said plurality of housings (41a,b,...,n) according to said at least one arrangement. The present invention also relates to a machining center which implements the method.