Merilnik kotnega položaja stružnice

diplomsko delo

Leon Ulčakar (Avtor), Andrej Trost (Mentor)

Povzetek

Diplomska naloga obravnava razvoj natančnega sistema za merjenje zamika kota glave ročne stružnice, ki omogoča obdelavo majhnih kosov z minimalnimi tolerancami v mirovanju. Zaradi omejenega prostora okoli osi stružnice je bilo treba zasnovati tudi kompakten in prilagodljiv tahometer, primeren za montažo ob preostalem sistemu. Za merjenje kota glave je bil izbran magnetni enkoder, saj je odporen proti umazaniji v notranjosti stružnice. Tahometer temelji na fototranzistorju, ki omogoča kompaktno izvedbo vezja in zanesljivo merjenje obratov. Sistem vključuje tudi zunanjo enoto, ki olajša delo operaterju. Pri načrtovanju sistema je bilo treba upoštevati prostorske in napajalne omejitve stružnice ter izbrati ustrezne elektronske komponente. Razvoj tahometra je potekal eksperimentalno s primerjavo signalov prvotnega in novega sistema ter testiranjem njegovega delovanja. Testiranje na ročni stružnici je pokazalo, da sistem pravilno deluje pri izklopljenem motorju in brez pokrova. Vendar pa močne motnje, ki nastanejo ob vklopu motorja, onemogočajo merjenje. Tahometer je bil preizkušen pri različnih hitrostih, pri čemer so bila večja odstopanja pri visokih obratih odpravljena s kalibracijo. Kljub določenim omejitvam sistem v trenutni obliki deluje zanesljivo in ustreza svojemu namenu, to je natančnemu merjenju kota glave stružnice v mirovanju.

Ključne besede

mikrokrmilnik;enkoder;magnet;merilnik obratov;univerzitetni študij;Elektrotehnika;diplomske naloge;

Podatki

Jezik:	Slovenski jezik
Leto izida:	2025
Tipologija:	2.11 - Diplomsko delo
Organizacija:	UL FE - Fakulteta za elektrotehniko
Založnik:	[L. Ulčakar]
UDK:	621.3(043.2)(0.034.2)
COBISS:	242795779
Št. ogledov:	94
Št. prenosov:	30
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Angleški jezik
Sekundarni naslov:	Lathe angular position sensor
Sekundarni povzetek:	The thesis focuses on the development of a precise system for measuring the angular displacement of a manual lathe head, which enables the machining of small parts with minimal tolerances when the machine head is stationary. Due to the limited space around the lathe axis, it was also necessary to design a compact and adaptable tachometer suitable for mounting alongside the rest of the system. A magnetic encoder was chosen for measuring the lathe head angle, as it is resistant to the dirty environment inside the lathe. The tachometer is based on a phototransistor, which allows for a compact circuit design and reliable rotation measurement. The system also includes an external unit that facilitates the operator’s work. When designing the system, it was necessary to consider the spatial and power supply constraints of the lathe and to select appropriate electronic components. The tachometer was developed mainly on an experimental basis, comparing the signals from the original and the new system, and testing the functionality. The tests on a manual lathe showed that the system functions correctly when the motor is switched off and the cover is removed. However, strong interference caused by switching on the motor prevents proper measurement. The tachometer was tested at various speeds, where larger deviations at higher rotations were corrected through calibration. Despite certain limitations, the system in its current form operates reliably and fulfills its intended purpose, which is the precise measurement of the lathe head angle while the machine is at a standstill.
Sekundarne ključne besede:	Microcontrollers;encoder;magnetic;rpm meter;
Vrsta dela (COBISS):	Diplomsko delo/naloga
Študijski program:	1000313
Komentar na gradivo:	Univ. v Ljubljani, Fak. za elektrotehniko
Strani:	1 spletni vir (1 datoteka PDF (IX, 44 str.))
ID:	26712173