| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method and a device for performing pore electric discharge machining, in each of which the length of a spout of an injection nozzle can be machined with high accuracy. <P>SOLUTION: The method for performing pore electric discharge machining on a tip concave part of the spout of the injection nozzle comprises: a step 1 of detecting contact with a reference sphere 35 to set the starting point of a machining electrode D; a step 2 of mounting a reference object to be machined in a unit for clamping the object to be machined; a step 3 of detecting coordinates of a surface position of the reference object to be machined by using a contact detection means; a step 4 of storing data on the coordinates; a step 5 of mounting the injection nozzle being the object to be machined in the unit for clamping the object to be machined; a step 6 of detecting the coordinates of the surface position of a part to be machined of the injection nozzle; a step 7 of calculating a difference between the Z-axis coordinate of the surface position of the part to be machined which is detected at the step 6, and the Z-axis coordinate stored at the step 4 and correcting a feed rate on the basis of the calculated difference when the Z-axis of the tip concave part of the spout of the injection nozzle is machined, and executing the electric discharge machining; a step 8 of performing the steps 3-7 on a plurality of parts to be machined when the reference object to be machined has the plurality of parts to be machined. <P>COPYRIGHT: (C)2013,JPO&INPIT |
