【正文】 of sport to realize to used for slippery platform, It mainly by slippery platform, slippery pedestal and hydraulic pressure cylinder 3 part make up. The slippery pedestal is fixed on post, the cylinder block of hydraulic oil is fixed on slide , cylinder rod and slippery platform join each other, When working, hydraulic pressure cylinder regular, cylinder rod bring slippery platform make round sport at guide of slide. This slippery platform of hydraulic pressure of lathe belongs to the largescale slippery platform, enough energy stores . Slippery work of platform is it enter , stock and soon retreat 3 kinds of states altogether soon to have. Its movement was controlled together by the electric system and hydraulic pressure system. Install power heads and main shaft case on the slippery platform , is equipped with the pulley block of steel wire rope on the slippery tops , another end contains the counterweight one in the post, the purpose is to make the slippery platform move lightly on the slide , and can prevent the slippery ends from being overweight and glide . Power head and main shaft case The power head is the drives of sports of the main shaft , It drive each , main shaft of case output main shaft make cutter decide body sport. This lathe is got into, expanded , the diameter of hole cutter of dumpling is 25mm , 26 respectively. 6mm and 27mm, It is 35CrMoV to process the part material, hardness HRC2832, Consider the torsion stores coefficient , the lathe adopts the power very beginning of standard Model TD80A , the main electrical machinery is 15KW. The rotational speed is 970r/min, the rotational speed of the output shaft is 475r/min. The main shaft case makes one of the important parts of the lathe up , Function its according to process processing of piece require , arrange every position of main shaft, is it distribute every work main shaft to output power of electrical machinery according to different rotating ratio, make the main shaft get the rotational speed required and change direction, Israel satisfies the processing of the part. Main shaft and boring the template The structure of the main shaft depends on receiving the strength situation of the processing technology of the part and main shaft . For get into main shaft processed to sharpen , cut strength to be relatively heavy axial , should adopt thrust ball bearing or get away the bearing of the awl orientate. Main shaft and connection way of cutter adopt 3 lead set connect pole , size proportion of cutter can is it process situation change and answer the pole to depend on. The rotational speed of main shaft that used for boring , reaming is processed is 175r/min. Cut speed V =13. 7m/min, feed amount S =0. 17mm/r. The rotational speed of main shaft of reaming and processing is 50r/min, cut speed V =4. 24m/min, feed amount S =0. 6mm/r, the speed Sv of the feed =30mm/min. Bore the template and play the auxiliary localization function on the cutter mainly, prevent the cutter from swinging while processing, thus improve the precision processed one. Turn the workingbench round It is a transport part of much worker39。185。s location association lathes and transfer machine occupy very important status. Because two lathe these can is it get a lot of location , Engineer of processing , have to assign a lot of processing process of work piece, and can process several of the work piece from a lot of directions at the same time , In addition, Can also through transfer to location jig (turn workingbench round at the lathe ) or through transfer to location , upset device (at transfer machine ) realize 5 processing or processing of work piece, Therefore have very high automatic degree and production efficiency , is adopted by such industrial departments as the automobile , motorcycle and pressor ,etc.. According to relevant statistical data, Germany is here 19901992 During annual ,Person who turn round many worker location association lathe and output of transfer machine is it is it make about 50 , lathe of total amount up to take each to invite. Should point out , Turning round type many worker39。 (5)機床采用可編程控制程序控制，因而自動化程度高，且機床的動作在不改變電氣線路的情況下可在線編制程序，隨機調(diào)整。 6 本組合機床特點 (1)機床上的通用部件和標準零件約占機床零部件總量的 ７０％ 以上，因此設(shè)計和制造的周期短，經(jīng)濟效益好。 （ 7）回轉(zhuǎn)工作臺的回轉(zhuǎn)中心與主軸箱的加工中心的同軸度。 （ 3）主軸孔軸線的徑向跳動。 4 組合機床的安裝調(diào)試及精度檢驗 在組裝過程中始終貫穿著對系統(tǒng)部件的不斷調(diào)試，以及對影響加工尺寸的主要部件的自身精度和結(jié)合精度進行調(diào)整。 機床的操作分調(diào)整和自動兩種方式，調(diào)整方式為手動控制機床的單步操作；自動方式由程序控制按加工流程圖實現(xiàn)自動循環(huán)。它可以實現(xiàn)對程序的自我診斷和故障檢測，可進行邏輯運算和編程的控制，定時和計數(shù)的控制，可以容易地實現(xiàn)機、電、液一體化?；剞D(zhuǎn)工作臺的抬 起、落下、回轉(zhuǎn)和復(fù)位，以及工件的夾緊和放松，主要由三個兩位四通電磁閥來控制。每套夾具有四個 夾緊油缸，等分固定在夾具體的四個方向上，夾緊工件時受力均衡，防止零件變形。 ３ .6 夾具 夾具使用來防止并固定被加工零件的。本機床的回轉(zhuǎn)工作臺分四個工位， 1工位用于裝、卸工件， 、擴、鉸工位。用于鉆、擴孔加工的主軸轉(zhuǎn)速為 175r/min。主軸箱主軸的排列根據(jù)被加工零件的工藝要求進行設(shè)計，并與回轉(zhuǎn)工作臺上的夾具工位向?qū)?yīng)，主軸箱的傳動齒輪及傳動軸可選標準件。 ３ .3 動力頭及主軸箱 動力頭是主軸運動的驅(qū)動裝置，它帶動主軸箱的各個輸出主軸使刀具作主體運動。本機床液壓滑臺屬于大型滑臺，有足夠的能量儲備。它們起著組合機床的基礎(chǔ)骨架作用。裝卸工件和加工工件可同時進行，互不干擾，既機床的切削時間和輔助時間重合，從而提高機床的工作效率。根據(jù)以上要求，工藝方案應(yīng)確定粗精加工分開進行，即先鉆 25的孔，然后擴孔到 ，再精餃孔到 27，考慮到零件的加工精度和工序集中原則，粗精加工合并成一道工序在一臺機床上進行。由于電液比例閥控制系統(tǒng) Hille 和 Ex2cell2o 等公司相繼開發(fā)出數(shù)控加工模塊和柔性自動線 (F TL) ,從此數(shù)控組合機床和柔性自動線逐年增多。 組合機床柔性化進展迅速 十多年來 ,作為組合機床重要用戶的汽車工業(yè) ,為迎合人們個性化需求 ,汽車變型品種日益增多 ,以多品種展開競爭已成為汽車市場競爭的特點之一 ,這使組合機床制造業(yè)面臨著變型多品種生產(chǎn)的挑戰(zhàn)。因為這兩類機床可以把工件的許多加工工序分配到多個加工工位上 ,并同時能從多個方向?qū)ぜ膸讉€面進行加工 ,此外 ,還可以通過轉(zhuǎn)位夾具 (在回轉(zhuǎn)工作臺機床上 ) 或通過轉(zhuǎn)位、翻轉(zhuǎn)裝置 (在自動線上 ) 實現(xiàn)工件的五面加工或全部加工 ,因而具有很高的自動化程度和生產(chǎn)效率 ,被汽車、摩托車和壓縮機等工業(yè)部門所采用。 現(xiàn)在組合機床作為機電一體化產(chǎn)品，它是控制、驅(qū)動、測量、監(jiān)控、刀具和機械組建等技術(shù)的綜合反映。該設(shè)備占地面積小，加工精度高，性能穩(wěn)定可靠，是汽車制造工廠加工輪轂不可多得的設(shè)備。研制 四工位組合機床用于對載重汽車前、中后輪轂 1027+、擴、鉸加工。 附錄 A 四