Turret Disc Tool Holder Positioning for Increased Capacity

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Solution Overview

Problem

Turret discs for machine tools are limited in the number of tool holders they can accommodate due to space constraints, particularly for cooled tools, which require more space and collide with adjacent holders, restricting their placement.

Innovation Solution

Tool holders with larger dimensions than their attachment points are positioned at a distance from the turret disc's end face, overlapping adjacent holders to utilize otherwise unused space, allowing for a greater number of tool holders, including cooled tools, without impairing the functionality of adjacent tools.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If cooled tool holders are attached to the turret disc, then the tool holding capacity is improved, but the available space on the turret disc is reduced due to their larger dimensions

Engineering Contradiction:

Improvenumber of tool holdersVSAvoidavailable space on turret disc

Core Design Contradiction:

Quantity of substanceVSArea of stationary object

Solution Approach 1:

The patent utilizes the third dimension (depth/distance from end face) to resolve the space conflict. Tool holders are positioned at different distances from the end face, with larger cooled tool holders placed farther away where they do not collide with adjacent holders, while smaller holders are positioned closer to the end face.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent creates a nested arrangement where tool holders are positioned in layers at different distances from the end face. The attachment points are arranged such that larger tool holders nested at greater distances do not interfere with smaller tool holders positioned closer to the end face, maximizing space utilization.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Quantity of substance

If the turret disc size is increased to accommodate more tool holders, then the tool holding capacity is improved, but the machine tool dimensions are exceeded

Engineering Contradiction:

Improvenumber of tool holdersVSAvoidturret disc dimensions

Core Design Contradiction:

Quantity of substanceVSLength of stationary object

Solution Approach 1:

Instead of increasing the turret disc diameter (2D expansion), the patent utilizes the depth dimension (distance from end face) to arrange tool holders in layers. This allows accommodation of more tool holders, including larger cooled ones, without increasing the overall turret disc dimensions.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Area of stationary object

If tool holders are positioned closer to the end face to maximize space utilization, then the available space is improved, but the tool holder dimensions are restricted

Engineering Contradiction:

Improvespace utilization on turret discVSAvoidtool holder size

Core Design Contradiction:

Area of stationary objectVSVolume of moving object

Solution Approach 1:

The patent resolves this contradiction by utilizing the depth dimension. Larger tool holders requiring more volume are positioned farther from the end face where there is sufficient space, while smaller tool holders are positioned closer to the end face, optimizing both space utilization and tool holder size requirements.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP2540422B1Turret disc with tool holders for machine tools

Publication Date: 2016.03.09 HEIMATEC

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AI summary

The turret disk has tool holders (2,3) for tools for machine tools for machining of work pieces. The tool holder has dimensions, which are increased relative to its attachment point on the turret disk with a distance to its front side in the circumferential direction of the turret disk.