Izdelava in ovrednotenje CNC stroja

magistrsko delo

Žan Kaštigar (Author), Gregor Geršak (Mentor)

Abstract

V dokumentu je predstavljena zasnova, izdelava in ovrednotenje delovanja CNC stroja. V začetku je opisana zgodovina in osnovna ideja numerično krmiljenih strojev, nadaljuje se s sestavom in opisom posameznih komponent, konča pa z opisom meritev in rezultatov. V lesni delavnici je zaradi večjega števila serijskih naročil prišlo do potrebe po avtomatizaciji. Zaradi širokega obsega del, ki se izvajajo, je bila edina logična rešitev sestava CNC stroja. Zahteve za stroj so bile sledeče: dovolj velika obdelovalna površina za obdelavo vrat (širina 90 cm) in točnostjo obdelave končnih izdelkov do 0,3 mm. Izdelal sem stroj z obdelovalno površino 1300 mm × 900 mm, za pogon so bili zaradi nižanja stroškov uporabljeni koračni motorji brez zaprte zanke z dvema različnima načinoma pomika, s krogličnim vretenom in z jermeni. Ker je stroj primarno namenjen obdelavi lesa, je slednji sestavljen iz aluminijastih profilov in železnih ojačitev. Izkazalo se je, da stroj ne dosega željene točnosti, ki pa bi bila dosegljiva z opisanimi rešitvami. Ugotovitev ni bila znana vse do dejanske izvedbe meritev, ki so omogočile nadaljnjo optimizacijo stroja.

Keywords

CNC;koračni motor;Arduino;frekvenčni pretvornik;negotovost;pogrešek;povprečna vrednost;G-koda;GRBL;raztros;standardni odklon;magisteriji;

Data

Language:	Slovenian
Year of publishing:	2023
Typology:	2.09 - Master's Thesis
Organization:	UL FE - Faculty of Electrical Engineering
Publisher:	[Ž. Kaštigar]
UDC:	621.313/.314(043.3)
COBISS:	181862915
Views:	131
Downloads:	24
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	CNC machine design and evaluation
Secondary abstract:	The document presents the design, manufacture and simplified evaluation of the machine's performance. At the beginning, the history and basic idea of numerically controlled machines is described, it continues with the composition of the whole machine and description of individual components, and ends with a description of measurements and results. In the woodworking workshop, due to the large number of serial orders, there was a need for automation. Due to the wide range of work being carried out, the only logical solution was the assembly of a CNC machine. The requirements for the machine were as follows: a sufficiently large processing surface for door processing (width 90 cm) and the accuracy of processing finished products up to 0,3 mm. A machine with a working surface of 1300 mm × 900 mm was designed, for the drive, non-closed-loop stepper motors with two different modes of movement, with a ball screw rod and with belts, were used to reduce costs. Since the machine is primarily intended for processing wood, the latter consists of aluminum profiles and iron reinforcements. It turned out that the machine does not achieve the desired accuracy, which could be achieved with the described solutions. The finding was not known until the actual performance of the measurements, which enabled further optimization of the machine.
Secondary keywords:	CNC;stepper motor;Arduino;Variable-frequency drive;uncertainty;error;average value;G-Code;GRBL;scatter;standard deviation;
Type (COBISS):	Master's thesis/paper
Study programme:	1000316
Embargo end date (OpenAIRE):	1970-01-01
Thesis comment:	Univ. v Ljubljani, Fak. za elektrotehniko
Pages:	1 spletni vir (1 datoteka PDF (VII, 61 str., [4] str. pril.))
ID:	21304000