Machine tool for machining workpieces

The machine tool's airflow arrangement minimizes temperature-induced geometric distortions and maintains accuracy by directing airflow away from critical components, effectively removing contaminants.

DE102018218972B4Active Publication Date: 2026-05-28DECKEL MAHO PFRONTEN GMBH
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Patent Information

Application Number
DE102018218972
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2018-11-07
Publication Date
2026-05-28
Estimated Expiration
2038-11-07

AI Technical Summary

Technical Problem

Existing machine tools experience temperature changes and geometric distortions due to airflow from oil mist extraction systems, leading to reduced machining accuracy.

Method used

The machine tool design includes air supply and extraction devices arranged to direct airflow away from critical structural components, using V-shaped and air curtain flows to minimize temperature changes and geometric distortions.

Benefits of technology

This design maintains machining accuracy by preventing temperature-induced geometric changes and ensuring efficient removal of oil mist, moisture, and chips without affecting the machining process.

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Abstract

A machine tool (100) for machining workpieces by means of a tool clamped in a work spindle (16) comprising: a workspace (110, 1100) with at least one air supply device (8, 9, 80, 90, 800) with an air supply opening for supplying air into the work area (110, 1100), at least one air extraction device (4, 5, 40, 400) with an air extraction opening for extracting oil mist, moisture, abrasion and / or chips generated in the work area (110, 1100) during machining of the workpiece by means of the tool clamped in the work spindle (16), characterized by the fact that the work area (110, 1100) is delimited by side walls (3, 6), a floor section (1) and a ceiling section (33) of the machine tool frame, if any, such that a cabin space that is at least partially enclosed is formed by arranging the workpiece and the working spindle (16) with the clamped tool during machining, wherein The air supply opening of the air supply device (8, 9, 80, 90, 800) and the air extraction opening of the air extraction device (4, 5, 40, 400) are arranged in the area of ​​the side walls (3, 6), the floor section (1) or the ceiling section (33) such that the at least partially enclosed cabin space is traversed by an airflow introduced by the air supply device (8, 9, 80, 90, 800) which is sufficient to remove oil mist, moisture, abrasion and / or chips or the like generated during workpiece machining, wherein the air supply opening of the air supply device (8, 9, 80, 90, 800) is arranged at a distance from the workpiece and tool and the structural components of the machine tool (100) supporting these components, such that a change in the machine geometry as a result of a temperature change is reduced or avoided, and wherein The air supply device (8, 9, 80, 90) and the air extraction device (4, 5, 40) are arranged in the working space such that the airflow is directed along the side walls (3, 6) to the air extraction opening of the air extraction device (4, 5), whereby the oil mist, moisture, abrasion and / or chip or the like that arise during workpiece machining around the workpiece and tool and structural components of the machine tool (100) supporting these components are directed via the side walls (3, 6) towards the air extraction device (4, 5, 40).
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Citation Information

Patent Citations

  • Removing machining swarf and debris by suction

    DE19651662A1

  • Method of dry cutting of workpiece

    DE4439114A1

  • Cutting chip gathering system of dry machining device

    JP2002126967A

  • JP002002126967A