DY接头的加工工艺及仿真
DY 接头的加工工艺及仿真 摘要:“DY 接头”是“导弹弹翼接头”的简称,它是导弹机身与机翼之间的连接零 部件。导弹弹翼接头材料为钛合金 TC4,钛合金具有强度高而密度又小等优点,可制 出单位强度高、刚性好、质轻的零部件,所以广泛用于制作飞机发动机压气机部件 接部,其次为火箭、导弹和高速飞机的结构件。数控加工技术是根据加工程序对工 件进行自动加工的先进制造技术,工件的加工质量主要由机床的加工精度、工艺和 加工程序的质量决定,基本上排除了机床操作人员手工操作技能的影响。 关键词:DY 接头,数控机床,数控线切割机床,数控加工技术 DY joint processing and programming Abstract:“DY joint“ is “missile Wing Joint“ is abbreviated, it is the missile fuselage and wing parts between the connection. Missile Wing Joint materials for the titanium alloy TC4, titanium alloy with high strength and density, small, etc., can produce a unit of high strength, rigid, lightweight components, so it is widely used to produce aircraft engine compressor components access the Department of , followed by rockets, missiles and high- speed aircraft structural parts. CNC machining technology is based on the automatic processing of the workpiece processing of advanced manufacturing technology, mainly by the quality of the workpiece machining precision machine tools, processing technology and the quality of the decision, basically ruled out the machine operator manually operating skills. Key words: DY joint,CNC Cutting Machine,WEDM,CNC Machining Technology Ⅰ 目 录 前 言 -------------------------------------------------------------------1 1 弹翼接头加工工艺规程设计 ---------------------------------------------2 1.1 零件的分析 -----------------------------------------------------------2 1.1.1 零件的材料特性 -----------------------------------------------------2 1.1.2 零件的作用 ---------------------------------------------------------2 1.1.3 零件的工艺分析 -----------------------------------------------------2 1.2 工艺过程设计所应采取的相应措施 ---------------------------------------3 1.3 弹翼接头加工定位基准的选择 -------------------------------------------3 1.3.1 确定毛坯的制造形式 ------------------------------------------------3 1.3.2 粗基准的选择 -------------------------------------------------------3 1.3.3 精基准的选择 -------------------------------------------------------4 1.4 工艺路线的制定 ------------------------------------------------------4 1.5 机械加工余量、工序尺寸及毛坯尺寸的确定 ------------------------------5 1.5.1 铣 外圆端面 --------------------------------------------5m15.02 1.5.2 加工 , , 工艺孔 --------------------------------620 1.5.3 铣长为 17 和 26 的两方孔 --------------------------------------------6 1.5.4 加工 孔 ---------------------------------------------------602.8 1.5.5 加工 孔 ---------------------------------------------------71.6 1.5.6 加工 , , 孔 ----------------------------7m035.4035.9m1 1.5.7 铣宽度为 12mm 的开口槽 ---------------------------------------------7 1.5.8 铣接头侧面两键槽 --------------------------------------------------8 1.6 确定切削用量及基本工时 ----------------------------------------------8 1.6.1 钛合金的切削过程中应注意的问题 -------------------------------------8 1.6.2 电火花线切割机的工作原理 -------------------------------------------8 1.6.3 数控线切割加工工艺特点 --------------------------------------------8 1.6.4 各工序的计算 -------------------------------------------------------9 Ⅱ 2 数控程序的编制 ------------------------------------------------------26 2.1 线切割轮廓 --------------------------------------------------------26 2.2 铣弦平面上端圆弧面 -------------------------------------------------27 2.3 铣弦平面下端圆弧面 -------------------------------------------------31 3 镗孔夹具设计 ---------------------------------------------------------35 3.1 加工 , , 工艺孔夹具设计 ------------------------35m8490m1 3.2 定位方案的分析和定位基准的选择 -------------------------------------35 3.3 切削力的计算与夹紧力分析 -------------------------------------------35 3.4 定位误差分析 --------------------------------------------------------36 3.5 夹具设计及操