20.500.12556/RUL-117811 Zasnova vpenjalnega mehanizma na CNC-stroju diplomski projekt Designing of the clamping mechanism in CNC machine Raziskali smo možne rešitve vpenjanja obdelovancev na CNC lesno obdelovalni stroj. V našem primeru so obdelovanci vrata omar. Ker so vrata različnih dimenzij, je težko zagotoviti enostavno, učinkovito in povrh vsega tudi univerzalno vpenjanje na CNC stroj. V diplomskem delu so predstavljene možne izvedbe vpenjalnih naprav glede na karakteristike obdelovanca. Najprej smo izvedli preračune vpenjalnih sil in podtlakov, ki so potrebni za izdelavo vpenjalne naprave. Kot prvo možno rešitev navajamo šablono z elektronskim vakuumskim stikalom, katero bi vgradili v vpenjalno kladico, vklop in izklop prisesnih polj pa je izveden preko krmilne plošče. Druga rešitev je vpenjalna šablona z vzmetjo in podobnim načinom delovanja, kot prej omenjena kladica. Za vklop in izklop prisesnega polja uporabimo mehansko zapiralo, ki deluje s pomočjo vzmeti. Kladice obeh predhodno navedenih naprav lahko vpnemo na enotno šablono in jih razvrstimo tako, da pokrivajo polja določenih dimenzij vrat. Tretja rešitev je vpenjalna naprava s peresom, kjer za pomikanje na želeno dimenzijo vrat izkoristimo utore v obstoječi delovni mizi CNC stroja. S tem osnujemo poljubno prisesno polje in omogočimo nastavitev vseh možnih dimenzij vrat. Četrta rešitev je pomična vpenjalna naprava, katere okvir je narejen iz aluminijastih profilov, omogočajo pomik kladici eni smeri. Pomik v drugi smeri pa nam omogoča sredinska letev, ki se pomika s pomočjo navojnih palic. Na tak način omogočimo fleksibilnost vpenjalne šablone. We studied the possible solutions of clamping the workpieces on the CNC woodworking machines. In our case the workpieces are the closet doors. Since the doors come in different dimensions it is hard to ensure an easy, effective and universal clamping on to the CNC machine. Let us first familiarize with the charateristics of the workpiece itself and after that with the clamping forces and negative pressure calculations that are necessary for the production of clamping device. As the first possible solution I list a template with electric vacuum switch which we would build in the clamping block. Such template enables, through control panel, the activation and deactivation of the suction fields that we require for a certain door dimension. As a second possible solution the clamping template with a spring is presented and would work in a similar way as the previously mentioned block. The only difference is that the activating and deactivating of the suction box uses mechanical shutter, which operates by means of spring. The blocks of both of the aforementioned devices would be clamped on a uniform template and arrange them so they would cover the fields of certain door dimensions. As a third possible solution is the clamping device with a tenon. For moving to the desired door dimension the device would use the mortises in the CNC's workbench itself. This way we would establish an optional suction field and allow the setting of all possible door dimensions. The fourth solution is movable template with a frame made out of aluminium profiles. The profiles allow the block to move in y direction, whilst the moving in x direction is enabled by median batten which movies by means of threaded rods. This way enable the flexibility of the clamping template. lesnoobdelovalni stroj vpenjanje obdelovancev CNC stroj woodworking machine clamping mechanism CNC machine true false false [P. Polh] Slovenski jezik Angleški jezik Delo diplomskega projekta/projektno delo 2020-07-27 14:37:16 2020-07-27 14:37:23 2022-08-30 04:00:22 0000-00-00 00:00:00 2016 0 Ljubljana 2016 Ljubljana X, 48 f. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 630*82 2684553 DIP_Polh_Primoz_2016.pdf DIP_Polh_Primoz_2016.pdf 1 A4461BFD60A22B8C7BD0D851D24DA963 fd5045c578814c2b22816e408310e69b9027eafd2323c18df849a9e787883524 4499480d-a1b9-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=131714 Biotehniška fakulteta 0 0 0