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DKUM
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Title:
Stroj za robljenje tankostenskih cevi
Authors:
ID
Šarić, Miljenko
(Author)
ID
Pahole, Ivo
(Mentor)
More about this mentor...
ID
Hace, Aleš
(Mentor)
More about this mentor...
ID
Gotlih, Karl
(Comentor)
Files:
MAG_Saric_Miljenko_2013.pdf
(5,96 MB)
MD5: 426F60B1DA1F9DB4BC0D0970535A8D2A
Language:
Slovenian
Work type:
Master's thesis/paper
Typology:
2.09 - Master's Thesis
Organization:
FS - Faculty of Mechanical Engineering
Abstract:
Pri skladiščenju in transportu oster rob na koncu cevi poškoduje površino ostalih cevi, zato je potrebno robljenje navznoter. V magistrskem delu je predstavljen idejni načrt stroja, katerega naloga je izvesti robljenje cevi na enem koncu po upogibanju. Preden smo se lotili zasnove stroja, smo s pomočjo simulacij analizirali odziv cevi na nov model orodja, sledila je izdelava orodja in nato preizkusi. Preizkusi so pokazali, da je s takšnim orodjem robljenje mogoče, vendar z dodanim trnom v notranjost cevi, sicer pride do odpiranja. Vzrok za odpiranje cevi je v načinu spajanja in kasneje njena oblika ter geometrija. V nadaljevanju so opravljene različne meritve, na osnovi katerih smo dobili informacije o potrebni potisni sili orodja za izdelavo roba in podatek o velikosti giba cevi v orodje. Pri zasnovi stroja smo izhajali iz zahtev in želja proizvajalca, dobljenih rezultatov preizkusov in meritev. V postopek zasnove je je bilo vključeno konstruiranje tridimenzionalnega modela in nato izdelava tehniškega načrta. V magistrski nalogi je prikazan in opisan potek avtomatizacije stroja za robljenje tankostenskih cevi s krmilnikom podjetja Siemens S7-200. Glede na to, da v podjetju Kovinarstvo Bučar na nekaterih delih valjčne proge že uporabljajo zrak za pogon pnevmatskih valjev, smo se odločili za pnevmatiko.
Keywords:
pločevina
,
robljenje cevi
,
zasnova stroja
,
merjenje sil
,
PLK
Place of publishing:
Maribor
Publisher:
[M. Šarić]
Year of publishing:
2013
PID:
20.500.12556/DKUM-41640
UDC:
621.981.6.07(043.2)
COBISS.SI-ID:
17592086
NUK URN:
URN:SI:UM:DK:AAWE05RM
Publication date in DKUM:
30.09.2013
Views:
2992
Downloads:
222
Metadata:
Categories:
KTFMB - FS
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ŠARIĆ, Miljenko, 2013,
Stroj za robljenje tankostenskih cevi
[online]. Master’s thesis. Maribor : M. Šarić. [Accessed 7 April 2025]. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=41640
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Hover the mouse pointer over a document title to show the abstract or click on the title to get all document metadata.
Secondary language
Language:
English
Title:
Folding machine for thin-walled tubes
Abstract:
The sharp edge at the end of the tube damages the surface of other tubes in the case of storage and transport. Therefore, it is necessary to crimp the edges inwards. The master’s thesis concentrates on an ideal machine design, the task of which is to crimp the pipe at the one end after bending. Before we started to design the machine, we analyzed the tube’s reaction to a new tool model by using simulations, followed by manufacturing the tool and testing it. The tests showed that it is possible to manufacture the edge with this kind of tool. However, an additional mandrel must be inserted inside of the tube. Otherwise, the opening of the tube will occur. The reason for the opening lies in the way of joining the tubes and later the design itself and the geometry of the tube. Moreover, various measurements were conducted, on the basis of which we obtained information on required force of the tool to manufacture the tube’s edge and the information on the size of the tube’s movement into the tool. The design of the machine originates from the requirements and the desires of the manufacturer, as well as obtained test results and measurements. The design process involved the construction of a 3D model, and later the technical plan elaboration. The master’s thesis shows and describes the process of the machine automation for crimping a thin-walled tube with the Siemens S7-200 controller. Considering the fact that the undertaking Kovinarstvo Bučar already uses air as a drive for pneumatic cylinders on some parts of the roller track, we decided to use the pneumatics.
Keywords:
sheet metal
,
folding tubes
,
machine design
,
force measurement
,
PLC
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