【正文】 the hole position accuracy requirements. In the single piece and small batch production, looking for processing hole axis location method for scribing. In the batch production in general use drilling fixture, jig boring machine and milling fixture, drilling fixture and jig, jig boring machine is also called boring mode, through the drill guide, boring cutter can accurately determine the relative position between the tool and workpiece. Pump head parts is a kind of typical parts, the manufacturing process and tooling design typical. Replace parts of the plex structure, the casting blank. In the course of processing, the processing route of the surface after the first hole, to ensure the positioning datum unification, the workpiece is accurate. In order to eliminate the influence of internal stress of cutting force, clamping force, cutting heat and caused by rough machining for machining precision, the whole process is divided into coarse, fine two stages. Through analysis of machining parts to plete the calculation of machining process design and the manufacturing processes for mobile time. According to the structure and function of the pump head part, using the knowledge of locating and clamping fixture design pleted. Keywords: General fixture and special fixture, drilling fixture, jig boring machine, milling machine, pump head 廣東技術(shù)師范學(xué)院天河學(xué)院 IV 目 錄 摘 要 .............................................................. I ABSTRACT .......................................................... III 目 錄 ............................................................. IV 1 緒論 ............................................................. 1 ......................................................................................................... 1 ...................................................................................................... 1 ........................................................................................... 1 ...................................................................... 1 ............................................................................................... 2 ........................................................................................... 2 ............................................................................. 3 ................................................................................................................ 4 ............................................................... 4 2 工藝規(guī)程設(shè)計 ..................................................... 5 零件的分析 ............................................................................................................ 5 .................................................................................................. 5 ........................................................................................... 5 ............................................................................................................. 5 ...................................................................................................... 5 ........................................................................................ 5 孔和平面的加工順序 ............................................................................................... 5 鏜孔加工方案選擇 ................................................................................................... 6 ........................................................................................... 6 ............................................................................................... 6 .................................................................................................... 10 ........................................................................ 10 .................................................................. 11 .................................................................... 11 ................................................................. 11 ............................................................... 12 ......................................................................... 12 ...................................................................... 13 ...................................................................................... 14 ......................................................................................... 14 ...................................................................................... 14 AA視圖左右兩端面 ............................................................................... 15 廣東技術(shù)師范學(xué)院天河學(xué)院 V .................................................................................. 15 ............................................................................... 15 鏜 AA視圖右端孔及止口 .......................................................................... 15 鏜 AA視圖左端孔 ..................................................................................... 16 鏜 AA視圖孔及錐孔 ................................................................................. 16 AA視圖 3φ45 凸臺至底座平面 ........................................................... 17 3M36* .................................................................... 17 CC視圖 8φ17 通孔 ........................................................................... 17 GG視圖 4GM16底孔帶攻絲 ................................................................. 17 3 切削用量及工時的確定 ............................................ 18 .................................................................................................... 18 .................................................................................................... 18 用量 ............................................................................................. 18 ................