20.500.12556/RUL-102735 Trajektorija gibanja vretena ostrilnega stroja Trajectory of the spindle movement of the sharpening machine 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. 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. tračna žaga ostrenje oblika zob procesiranje posnetkov zaznavanje robov trajektorija bandsaw sharpening teeth shape image processing edge detection trajectory true false false [S. Matkovič] Slovenski jezik Angleški jezik Magistrsko delo 2018-09-07 07:46:34 2018-09-07 07:46:38 2023-10-18 09:15:30 0000-00-00 00:00:00 2018 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.923.6(043.2) 208021 16424731 2201.pdf 2201.pdf 1 0CBAE702D1020F68A5A53C9E01E2F59E b072627f10c91ea1f92393df0d5c1aed2a85283548a3fbbc2ce1ad1e3fbacb56 9b183674-a1b5-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=113091 Fakulteta za strojništvo 0 0 0