尾座體支架B零件機械加工工藝規(guī)程及鉆φ14H7孔夾具設(shè)計【鉆φ14H7孔】

尾座體支架B零件機械加工工藝規(guī)程及鉆φ14H7孔夾具設(shè)計【鉆φ14H7孔】,鉆φ14H7孔,尾座體,支架,零件,機械,加工,工藝,規(guī)程,14,H7,夾具,設(shè)計 IV 遼寧工程技術(shù)大學課程設(shè)計 一、設(shè)計題目 題目： 二、原始資料 (1) 被加工零件的零件圖 1張 (2) 生產(chǎn)類型:中批或大批大量生產(chǎn) 三、上交材料 (1) 被加工工件的零件圖 1張 (2) 毛坯圖 1張 (3) 機械加工工藝過程綜合卡片(參附表1) 1張 (4) 與所設(shè)計夾具對應(yīng)那道工序的工序卡片 1張 (4) 夾具裝配圖 1張 (5) 夾具體零件圖 1張 (6) 課程設(shè)計說明書(5000～8000字) 1份 四、指導教師評語 成 績： 指導教師　　　　　　　 日　　期　　　　　　　 摘　要 本課題主要是設(shè)計某機床尾座體的加工工藝及夾具的設(shè)計，在設(shè)計中采用先設(shè)計該尾座體的加工工藝在根據(jù)加工工藝來選取夾具的設(shè)計的方案和夾具的具體設(shè)計；而設(shè)計的重點是夾具的設(shè)計。由于工件的孔17和14都要以底面做為基準加工，故首先得做出底面的加工夾具。由于孔17的精度要求高，和定位尺寸誤差小，為保證孔的位置和加工準確性我們一定在加工底面的時間通過畫線找出底面的加工余量。這樣就可以更好的保證孔17的位置和加工精度！加工孔14的夾具其實就是在加工底面夾具的基礎(chǔ)上加了一個45度斜度板。 Abstract This topic is mainly design that designs the tail a body of some tool machine to process the craft and tongses, adopting to design first in the design a body of that tail processes the craft at according to process the craft to select by examinations the tongs of the project of the design and concrete design of the tongs;But the point of design is the design of the tongs.Because the bore of the work piece 17 and 14 all want to face to be used as the basis to process with the bottom, past have to do a bottom to face first of process the tongs.Because bore 17 of accuracy have high request, and position the size error margin small, for guarantee the position of the bore and process the accuracy we certainly at process the bottom to face of time pass to draw the line to find out the bottom to face of process the amount of remaining.Thus can with better assurance bore 17 of position and process the accuracy!Process the bore 14 of tongs was in processing the foundation that the bottom faces the furniture to add one 45 degrees of gradient plank in fact.Process the bore 17 of time is opposite for assurance to run parallel with B face of in the A we have to design accurately with the AN and B faces to settle for of tongs!Return in consideration of a degree of the work piece and the error margin of the cylinder degrees are small, the furniture that we design have to the bore 17 of tongs fixed position is accurate, and process the vibration of time small, that have to in the bore 17 of neighborhood seek a fixed position to step up the point! 目 錄 1零件工藝分析 1 1.1零件工藝分析 1 2機械加工工藝規(guī)程設(shè)計 1 2.1 確定毛坯的制造形成 1 2.2 基面的選擇 1 2.3制定工藝路線 1 2.4 機械加工余量、工序尺寸及毛坯的確定 2 2.4.1 孔的內(nèi)徑表面 2 2.5確定切削用量及基本工時 2 2.5.2.鉆孔（鉆14的孔） 3 2.5.3.擴孔（擴14的孔） 4 2.5.4.鏜削（鏜削的孔） 5 3指定工序的專用夾具設(shè)計 5 3.1問題的提出 5 3.2夾具設(shè)計 5 3.2.1 孔的加工夾具 5 4方案的綜合評價與總結(jié) 7 5體會與展望 7 6參 考 文 獻 8