【正文】 BW3200101 泵頭 機(jī) 械 加工工藝及 工裝 設(shè)計(jì) 學(xué)生姓名： 學(xué)生學(xué)號(hào)： 院（系）： 機(jī)電工程系 年級(jí)專(zhuān)業(yè)： 機(jī)械設(shè)計(jì)制造及其自動(dòng)化 指導(dǎo)教師： 二 〇 一 三 年 三 月廣東技術(shù)師范學(xué)院天河學(xué)院 I 摘 要 在機(jī)床上加工工件時(shí)，定位和夾緊的全過(guò)程稱(chēng)為 “ 安裝 ” 。在機(jī)床上用來(lái)完成工件安裝任務(wù)的重要工藝裝備，就是各類(lèi)夾具中應(yīng)用最為廣泛 的 “ 機(jī)床夾具 ” 。 機(jī)床夾具的種類(lèi)很多，其中，使用范圍最廣的通用夾具，規(guī)格尺寸多已標(biāo)準(zhǔn)化，并且有專(zhuān)業(yè)的工廠(chǎng)進(jìn)行生產(chǎn)。而廣泛用于批量生產(chǎn)，專(zhuān)為某工件加工工序服務(wù)的專(zhuān)用夾具，則需要各制造廠(chǎng)根據(jù)工件加工工藝自行設(shè)計(jì)制造。本設(shè)計(jì)的主要內(nèi)容是設(shè)計(jì) 鏜 床夾具 和銑床夾具 及全工藝過(guò)程設(shè)計(jì) ，需要對(duì) 泵頭的底座平面進(jìn)行銑削加工和 AA視圖右端 3φ 100 ? 、 390 ? 、 3φ 100、 3φ 95 ? 孔及止口 進(jìn)行鏜削加工。 全套圖紙，加 153893706 泵 頭 零件有各種不同用途和不同精度的孔需要加工。在機(jī)械加工中，孔的加工量所占比例較大，其中鉆頭、擴(kuò)孔鉆、鉸刀 、鏜刀 等定尺寸刀具加工占相當(dāng)多數(shù) 。這時(shí)，除了要保證孔的尺寸精度外，還要達(dá)到孔的位置精度要求。在單件小批量生產(chǎn)中，用劃線(xiàn)后找正孔軸線(xiàn)位置方法加工。在批量生產(chǎn)中一般都采用鉆床夾具 、 鏜床夾具 及銑床夾具 ，鉆床夾具又稱(chēng)鉆模， 鏜床夾具又稱(chēng)鏜模， 通過(guò)鉆套 、鏜套 引導(dǎo)刀具進(jìn)行加工可準(zhǔn)確地確定刀具與工件之間的相對(duì)位置。 泵頭 零件是一種典型零件，其加工工藝規(guī)程和工裝設(shè)計(jì)具有典型性。該箱體零件結(jié)構(gòu)復(fù)雜，零件毛坯采用鑄造成形。在加工過(guò)程中，采用先面后孔的加工路線(xiàn)，以保證工件的定位基準(zhǔn)統(tǒng)一、準(zhǔn)確。為了消除切削力、夾緊力、切削熱和因粗加工所造成的內(nèi)應(yīng)力對(duì)加工精度的影響 ，整個(gè)工藝過(guò)程分為粗、精兩個(gè)階段。通過(guò)被加工零件的分析完成了機(jī)械加工工藝的設(shè)計(jì)及各加工工序機(jī)動(dòng)時(shí)間的計(jì)算。根據(jù) 泵頭 零件的結(jié)構(gòu)及其功能，運(yùn)用定位夾緊的知識(shí)完成了夾具設(shè)計(jì)。 關(guān)鍵詞 ： 通用夾具 、 專(zhuān)用夾具 、 鉆床夾具 、鏜床夾具、 銑床夾具、 泵頭 廣東技術(shù)師范學(xué)院天河學(xué)院 II 廣東技術(shù)師范學(xué)院天河學(xué)院 III ABSTRACT In the processing machine parts, the whole process of positioning and clamping called installation”. Important process equipment in the machine to plete the workpiece installation tasks, various fixture is used most widely machine tool fixture. Many types of machine tool fixture, wherein, the use scope broadest generaljig, sizes have been standardized, and has a professional production plant. But widely uses in the volume production, special fixture designed for a workpiece processing services, requires the factory according to the workpiece processing technology to design and manufacture. The main content of this design is the design of boring jigs and fixtures of milling machine and the whole process of design, need to the plane of the base of pump head for milling and the AA view right end 3 φ 100, φ 100 390, 3, 3 φ 95 holes and the rabbet of bori Pump head parts have different uses and different precision hole needs to process. In machining process, machining orifice larger proportion, the drill, reamer, reamer, boring cutter, sizing tool processing accounted for a majority of. At this time, in addition to guarantee the hole the size precision, but also to reach 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(jì) ..................................................... 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 .................................................................