| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a water jet machining device devised so that a large load does not work on opening and closing valves of machining water and piping in changing a first opening and closing valve of machining water and a second opening and closing valve of the machining water over to each other. <P>SOLUTION: This water jet machining device includes: a workpiece holding means 6; and a machining water jetting means 7 to jet the machining water in which abrasive grains are mixed. The machining water jetting means 7 includes: the machining water opening and closing valves 77a, 77b respectively arranged on machining water delivery pipes 711a, 711b to connect high pressure tanks 70a, 70b and nozzles connected to the tanks to each other; a machining water refilling means 74 to refill the machining water in which the abrasive grains are mixed to the high pressure tanks; a main high pressure water supplying means 73 to supply high pressure water; an auxiliary high pressure water supplying means 81 connected to the main high pressure water supplying means 73 and the high pressure tanks 70a, 70b; first auxiliary high pressure water conductors 813a, 813b to respectively connect the auxiliary high pressure water supplying means 81 and the high pressure tanks 70a, 70b to each other; and a control means 9. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
