杠桿(CA1340自動車床)（三）加工工藝及鉆2-M4底孔夾具設(shè)計-氣動夾具

喜歡就充值下載吧。資料目錄下的全部文件，下載了全部有的哦。 遼寧工程技術(shù)大學(xué)課程設(shè)計 V遼寧工程技術(shù)大學(xué)課 程 設(shè) 計題 目： CA1340杠桿加工工藝及 M4螺孔加工夾具設(shè)計 班級：機械07-2姓名：孫澤遠 指導(dǎo)教師：于英華 一、設(shè)計題目(學(xué)生空出，由指導(dǎo)教師填寫)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(50008000字) 1份四、四、進度安排(參考)(1) 熟悉零件,畫零件圖 2天 (2) 選擇工藝方案,確定工藝路線,填寫工藝過程綜合卡片 5天(3) 工藝裝備設(shè)計(畫夾具裝配圖及夾具體圖) 9天(4) 編寫說明書 3天(5) 準備及答辯 2天五、指導(dǎo)教師評語成 績： 指導(dǎo)教師日期 摘要在機床上加工工件時，為了使工件在該工序所加工的表面能達到規(guī)定的尺寸和位置公差要求，在開動機床進行加工之前，必須首先使工件占有一正確位置。通常把確定工件在機床上或夾具中占有正確位置的過程，稱為定位。當工件定位后，為了避免在加工中受到切削力、重力等的作用而破壞定位，還應(yīng)該用一定的機構(gòu)或裝置將工件加以固定。工件定位后即將其固定，使其在加工過程中保持定位位置不便的操作，稱為夾緊。通過以杠桿20H7孔和其左端面為精基準，運用一面兩銷來限制工件的6個自由度，在實現(xiàn)中批生產(chǎn)的前提下，采用液壓缸來對工件進行夾緊。滿足了該杠桿工件的生產(chǎn)要求。由于本夾具配合面，連接孔較多，因此，夾具的零件對精度比較高，操作時要注意夾具各螺紋是否擰緊；還有就是夾具操作時，要防止定位零件有過大的磨損，若有較大磨損，要注意及時更換，以保證零件加工精度。夾具上裝有對鉆套，可以使夾具在一批零件的加工之前很好的對刀，同時，夾具體上底面有一對定位鍵，可使夾具工作臺上在很好的定位。工件裝夾是否正確、迅速、方便和可靠，將直接影響工件的加工質(zhì)量、生產(chǎn)效率、制造成本和操作安全。在成批、大量生產(chǎn)中，工件的裝夾是通過機床夾具來實現(xiàn)的。機床夾具在生產(chǎn)中應(yīng)用十分廣泛。關(guān)鍵詞：機械制造 夾具 定位 夾緊元件Abstract In the processing machine parts, in order to enable the workpiece in the process by processing the surface can achieve the required size and location of tolerance requirements, starting in the machine for processing before, we must first make a correct position of the workpiece possession. The workpiece is usually identified in the machine tool or fixture in the possession of the correct location of the process, known as the location. When the workpiece positioning, in order to avoid being in the processing of cutting force, gravity, and so undermine the role and positioning, but also should use a certain body parts or devices will be fixed. After positioning the workpiece to be fixed, in the process to maintain the target of inconvenience in the operation, known as the clamp.20H7 to leverage through the hole and its fine base for the extreme left side, use a pin to limit the two parts of six degrees of freedom, in the realization of the grant under the premise of the production, use of hydraulic cylinders to the workpiece to clamp. Parts of the lever to meet the production requirements.As the fixture with face, connecting more holes, so the fixture parts of the relatively high precision, the operation of the fixture should pay attention to whether the tightening thread; fixture is still in operation, to prevent the positioning is too large parts of wear and tear, if Have greater wear and tear, attention should be paid timely replacement to ensure that the precision machining parts.Fixture is equipped with sets of drilling, so that the fixture in a number of processing before the good parts of the knife, at the same time, specific folder on the underside of a pair of targeting key fixture will work on stage in a very good location.Workpiece clamping is correct, rapid, convenient and reliable, will directly affect parts of the processing quality, productivity, manufacturing costs and operational safety. In bulk, mass production, part of the fixture through the machine to achieve the fixture. Fixture for the production of machine tools in the application of a very wide range. Keywords: Machinofacture Fixture Location Clamping components目 錄1.CA1340自動車床杠桿工藝分析錯誤！未定義書簽。1.1杠桿工藝分析及生產(chǎn)類型確定錯誤！未定義書簽。1.1.1杠桿的技術(shù)要求錯誤！未定義書簽。1.1.2審查杠桿的工藝錯誤！未定義書簽。1.1.3確定杠桿的生產(chǎn)類型錯誤！未定義書簽。1.2確定毛坯、繪制毛坯簡圖錯誤！未定義書簽。1.2.1選擇毛坯錯誤！未定義書簽。1.2.2確定毛坯的尺寸公差和機械加工余量21.3擬定杠桿的工藝路線21.3.1定位基準的選擇21.3.2表面加工方法確定31.3.3加工階段劃分41.3.4工序的集中與分散41.3.5工序順序安排51.3.6確定工藝路線51.4加工余量、工序尺寸和公差的確定61.5切削用量、時間額定的計算91.5.1切削用量的計算91.5.2時間額定的計算92.專用夾具設(shè)計102.1 基本定位原理分析102.2 定位基準的選擇102.3 定位誤差分析102.4夾具操作簡要說明122.5 夾具使用注意事項、保養(yǎng)及維護123.方案綜合評價與結(jié)論124.體會與展望13參考文獻14附錄1：機械加工工藝過程卡附錄2：機械加工工序卡