Lightweight machine enclosures for dynamic and efficient production processes

• Autorzy: Möhring H.-Christian , Stehle Thomas , Schneider Matthias

Identyfikatory

DOI

10.5604/01.3001.0013.2350

• Języki publikacji: EN

Abstrakty

EN

Usually machining centres for processing wood-based and composite materials have moving partial machine enclosures in the X-axis direction. Because the workpieces to be machined are often large (e.g. aircraft doors), these partial enclosures have prevailed on the market compared to voluminous complete enclosures. Owing to the general trend towards complete machining through process integration, an increasing number of additional units are integrated into machining centres in addition to the main spindle. This leads to an increase of the mass to be moved as well as a larger and thus heavier partial enclosure. This inevitable increase in mass leads to a deterioration of the dynamic properties of the machine. To counteract this increase in mass, the use of lightweight design materials for machine enclosures becomes in the focus of attention. The lightweight materials to be used must comply with the requirements of modern mechanical engineering and legislation: retention in the event of tool breakage, reduction in the noise exposure of the machine environment and cost-effective solutions compared to the materials used nowadays. The sheet steel used today as material for partial enclosures is therefore to be supplemented or replaced with suitable lightweight design materials. Different lightweight materials are qualified for suitability as machine enclosure. Apart from mass reduction, ecological as well as economic aspects of the used materials play an important role. For this purpose, the safety properties (impact resistance in case of tool breakage / collision) of these weight-reduced materials have to be determined. In addition, an improvement in the acoustic behaviour of the machine is achieved by the new lightweight materials since the machine enclosure shields the distinctive sound sources.

Słowa kluczowe

EN

machine tool; safety; acoustic emission

• Wydawca: Wydawnictwo Wrocławskiej Rady FSNT NOT
• Czasopismo: Journal of Machine Engineering
• Rocznik: 2019
• Tom: Vol. 19, No. 2
• Strony: 46--53
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Möhring H.-Christian

• University of Stuttgart, Institute for Machine Tools (IfW), Stuttgart, Germany

autor

Stehle Thomas

• University of Stuttgart, Institute for Machine Tools (IfW), Stuttgart, Germany

autor

Schneider Matthias

• University of Stuttgart, Institute for Machine Tools (IfW), Stuttgart, Germany

Bibliografia

• [1] DIN EN ISO 19085-1, 2017. Woodworking machines – Safety – Part 1: Common requirements (ISO 19085- 1:2017), German version EN ISO 19085-1.
• [2] DIN EN 848-3, 2012, Safety of woodworking machines – One side moulding machines with rotating tools – Part 3. Numerically controlled (NC) boring and routing machines, German version EN 848-3.
• [3] KUOLT H., 2006, Geräuschentstehung und Maßnahmen zur Lärmminderung an Holzbearbeitungsmaschinen, Dissertation Universität Stuttgart.
• [4] N.N. Directive 2006/42/EC of the European parliament and of the council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast).
• [5] SCHIRMER W., 2006, Technischer Lärmschutz - Grundlagen und praktische Maßnahmen zum Schutz vor Lärm und Schwingungen von Maschinen, Springer-Verlag Berlin Heidelberg, Berlin, Heidelberg.
• [6] DIN EN ISO 717-1, 2013, Acoustics – Rating of sound insulation in buildings and of building elements – Part 1: Airborne sound insulation (ISO 717-1:2013), German version EN ISO 717-1.
• [7] DIN EN ISO 15667, 2000, Acoustics – Guidelines for noise control by enclosures and cabins (ISO 15667:2000), German version EN ISO 15667.
• [8] DIN EN ISO 3744, 2010, Acoustics – Determination of sound power levels and sound energy levels of noise sources using sound pressure – Engineering methods for an essentially free field over a reflecting plane (ISO 3744:2010), German version EN ISO 3744.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).