Technical gazette, Vol. 30 No. 3, 2023.
Original scientific paper
https://doi.org/10.17559/TV-20230220000363
Combined Machine Tool for Stepped Shafts
Lachezar Stoev
; Technical University of Sofia, Faculty of Industrial Technology, 8 Kl. Ohridski Blvd., BG-1000 Sofia, Bulgaria
Stoil Bozhikov
; Technical University of Sofia, Faculty of Industrial Technology, 8 Kl. Ohridski Blvd., BG-1000 Sofia, Bulgaria
Antun Stoic
; University of Slavonski Brod, Mechanical Engineering Faculty, Trg Ivane Brlić-Mažuranić 2, HR-35000 Slavonski Brod, Republic of Croatia
Franz Haas
; Graz University of Technology, Institute of Production Engineering, Kopernikusgasse 24/I, AT-8010 Graz, Austria
Abstract
The paper deals with a novel design of a combined machine tool in comparison with known contemporary analogues. It is designed for multifunctional machining of workpieces in one or two setups in collet and centre-to-centre design. Typical of this machine tool is the use of a bed with a trapezoidal cross-section with inclined longitudinal guides on both sides for the slides used for rough, fine and finish machining. With this design, the slides are spatially separated and lightly loaded. The material removal during roughing and finishing is separated from each other. The grinding slide and its guides are not subjected to additional thermal deflections caused by the high-temperature crisps produced during turning, and the slide for roughing and finishing is spatially protected against the influence of grinding powder. The bed meets the requirements for a thermos symmetrical design and allows internal cooling. The advantages of this arrangement from the design, technical and economic points of view are presented.
Keywords
combined machined tool; inclined guideways; multifunctional machining; trapezoidal bed
Hrčak ID:
300702
URI
Publication date:
23.4.2023.
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