22D D1P4N104
发布时间:2019-01-04 17:07:52点击率:
22D D1P4N104
22D D1P4N104
22D D1P4N104
22D D1P4N104
使用铣车复合加工中心则可以将半精加工以后的工序都集中在铣车复合加工中心上,
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《QQ :2479261344》
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减少车床、铣削中心之间的工序转换和装夹过程,尽管工艺路线仍然与常规加工方法类似,但车削、铣削是在一次装夹状态下完成的,简化了基准传递协调过程,减少了装夹误差和工序转换周期。采用铣车复合加工中心后,稳定处理前的工序仍然与常规加工方法相同,完成修下端面基准加工后,工件就直接在铣车复合加工中心上完成后续的所有加工,简化了工件的装夹找正过程( 此类零件每次装夹找正误差通常约为0.02mm),更重要的是,消除了凸台、孔、端面廓形三者之间因装夹变化引起的位置误差。
2 车铣复合加工技术的典型应用
飞机产品中适合车铣复合加工的零件主要包括:传动系统的扭力臂、支杆;发动机燃油喷嘴、安装座、阀体等。典型零件结构示意如图2所示。
常规的加工方法是采用车床、铣床及配套工装配合完成加工,主要工艺路线是:毛坯制备—划线,分配余量—车床:粗车回转体外形—铣床:以粗车的回转体外形为基准,粗铣叉耳端轮廓及端面—车床:半精车回转体外形—车床:回转体外形定位,制回转体内孔—车床:内孔定位,精车回转体外形—车床:回转体外形定位,精加工回转体内孔、镗端面孔—铣床:以回转体外形定位,铣叉耳外形、槽腔、槽口—铣床:铣长圆槽—铣床:铣叉耳孔—钳工: 去毛刺及修整。
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