magistrsko delo magistrskega študijskega programa II. stopnje Strojništvo
Sebastjan Matkovič (Author), Robert Kunc (Mentor)

Abstract

Uporabniki nizkocenovnih ostrilnih strojev orodji tračnih žag poročajo o težavah zaradi nemožnosti kakovostnega in ekonomsko sprejemljivega ostrenja orodji tračnih žag. Torej težave nastopajo tudi zaradi neustrezne programske opreme za upravljanje ostrilnih CNC - strojev. V magistrskem delu je predstavljen - računalniški program, ki na podlagi fizične oblike zob tračnih žag matematično popiše obliko zob: vrh zoba, cepilno ploskev, vznožje zoba z radijem prehoda ter potek hrbta oziroma proste ploskve. Nato program iz nabora standardne oblike brusnih kolutov določi najprimernejši brus ter za izbrani brus določi trajektorijo gibanja. Poleg programa smo izbrali še sistem linearnih vodil, katera, ob zagotavljanju definiranih zahtev, omogočajo trajektorijo gibanja vretena ostrilnega stroja. Delovanje programske kode smo preizkusili tako z analizo obstoječega fizičnega modela orodja tračne žage, kot tudi s teoretičnim modelom. Ugotovili smo, da program odstopa od 2% do 8% pri fizičnem model ter od 0,7% do 2,5% pri teoretičnem modelu.

Keywords

magistrske naloge;tračne žage;ostrenje;oblika zob;procesiranje posnetkov;zaznavanje robov;trajektorija;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL FS - Faculty of Mechanical Engineering
Publisher: [S. Matkovič]
UDC: 621.923.6(043.2)
COBISS: 16424731 Link will open in a new window
Views: 1101
Downloads: 330
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Other data

Secondary language: English
Secondary title: Trajectory of the spindle movement of the sharpening machine
Secondary abstract: Users of low cost sharpening machines for the band saw blades report difficulties and incapability of quality and economically acceptable sharpening. Problems, among other reasons, also arise due to inadequate CNC controlling software for sharpening machines. In this master%s thesis, a computer software, which based on existing physical form of the band saw teeth mathematically describes shape of the teeth, is presented. The shape is: tooth point, front of tooth and gullet bottom with radius of the passage to the back side. Software also picks a grinding wheel from a user created library. The trajectory of movement of the grinding wheel is then created. Besides the software, the linear guides, which enable the movement of the grinding spindle along the provided trajectory, were chosen. The software code was tested by analyzing both the existing physical model of the blade, as well as the theoretical model. It was found that the software shows a deviation of 2% to 8% for the physical model and of 0.7% to 2.5% for the theoretical model.
Secondary keywords: bandsaw;sharpening;teeth shape;image processing;edge detection;trajectory;
Type (COBISS): Master's thesis/paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. Ljubljana, Fak. za strojništvo
Pages: XXII, 60 str., 9 str. pril.
ID: 10958764
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