电火花穿孔机床在加工模具型孔时,为了提高效率和光洁度,多采用压力油杯进行加工中的冲油、抽油和排除电蚀残渣等。由于压力油杯的盖板孔必须与加工模具型孔相类似才能起到密封目的,所以每加工一种工件必须做一块相应的盖板,这样既费料又费工。如今我们改用活动油杯(见图示),利用工件做盖板,油杯四侧则由四块活动块所组成。这种油杯简单易行,还可以防止因盖板强度不够所引起的变形等缺陷。几点说明: EDM perforation machine tool in the mold-type hole, in order to improve efficiency and finish, the use of pressure oil cup for processing oil, pumping oil and exclude electric erosion residues. Because the pressure oil cup cover hole must be similar to the processing mold hole can play a sealing purpose, so each processing a workpiece must be made of a corresponding cover, so that both material and laborious. Now we use the activity oil cup (see illustration), the use of the workpiece cover, the four sides of the oil cup by the four activities of the block. This oil cup is simple and easy to operate, but also to prevent deformation due to lack of cover strength and other defects. A few points: