First start of a special drilling machine with hydraulic feed system

Namen diplomske naloge je bil prvi zagon namenskega vrtalnega stroja z hidravličnim podajanjem, ki je bil uporabljen za vrtanje ventilskih plošč. Posebnost vrtalnega stroja je večvretenska vrtalna glava, ki omogoča vrtanje štirih lukenj na enkrat. Zaradi neuporabe ga je bilo potrebno najprej očistiti. Ker ni bilo na voljo nobene dokumentacije je bilo potrebno izmeriti ter določiti vse parametre, ki smo jih potrebovali za zagon in seveda za kasnejše delovanje . Podrobno je opisan elektromotor in parametri, ki so zapisani na tablici elektromotorja. Priklop elektromotorja in pomen smeri vrtenja predstavljata velik del znanja potrebnega za prvi zagon. Namenski vrtalni stroj je opremljen s hidravličnim linearnim podajalnim sistemom, kar zahteva regulacijsko tehniko in hidravlični agregat. Tudi hidravlični agregat nekaj časa ni bil v rabi, kar pomeni, da tudi njega je bilo potrebno pregledat in opraviti osnovne vzdrževalne posege pred uporabo. Parametre črpalke smo določili z naprednimi merilci hidravličnih veličin. Tok hidravlične črpalke smo regulirali z frekvenčnim pretvornikom.The purpose of this diploma paper was the first start of a special drilling machine with hidraulic feed system, which was used to drill the valve plates. Specifity of this drilling machine is multi-spindle drilling head, which allows drilling four holes at once. Because of non-use it first needed to be cleaned. Since there was none available documentation, it was necessary to measure and define all the parametres that we needed for first start and later for use. Electromotor and details on the information plate are described in details. Connection of the motor and the importance of the direction of the rotation acoount for a large part of the knowledge needed for initial startup. Special drilling machine is equiped with a hydraulic feed system, which requires control tehnology and hydraulic power unit. Even the hidraulic power unit was has not been in use for a while, which means it also needed to be examined and it needed basic maintanence operations prior to use. Hidraulic pump parametres were determined with advanced hydraulic measuring devices. The hydraulic pumps are regulated by the frequency converter