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鹽城工學院本科生畢業(yè)設計說明書 2011
曲軸銑端面打中心孔機床總體設計及夾具設計
摘 要：應用組合機床大批大量生產(chǎn)零件，快捷高效，生產(chǎn)效率是機械加工的發(fā)展方向。為了提高加工精度，需要設計一臺組合機床來改善曲軸的加工情況。本課題是曲軸銑端面打中心孔組合機床的總體設計及夾具設計。主要完成對曲軸左右兩個端面的銑削及中心孔的鉆削，還要完成其專用夾具的設計。本設計的組合機床為臥式雙面銑削和鉆削組合機床，先對被加工零件特點進行分析，選擇采用刀具和工件分別安裝在各自滑臺上的方法，先銑后鉆。在確定了機床配置型式的基礎上，根據(jù)本道工序需要加工的內(nèi)容，完成三圖一卡的設計。夾具部分的設計主要是定位和夾緊方式的選擇，以零件加工工序圖為基礎，該零件由兩V形塊在兩主軸頸處定位，限制四個自由度，為防止工件的軸向移動，用一個定位釘在扇形板左端面處定位。夾緊方式采用液壓夾緊,力源裝置為液壓缸,中間遞力機構為推桿,夾緊元件為壓板。操作簡單,易于集中控制,夾緊可靠。
關鍵詞：組合機床；總體設計；三圖一卡；定位夾緊
The overall design of the face milling and drill center hole
machine toll and fixture design
Abstract: Application of mass production of large machine tool parts, fast and efficient, production efficiency is the development direction of machining.To improve the precision needed to design a machine tool to improve the situation of the crankshaft machining.The issue is the crankshaft end play center hole milling machine tool's overall design.Completion of the crankshaft main left and right end of the milling and drilling the center hole, but also to complete the design of the special fixture.The design of the combination machine is a horizontal double-sided milling and drilling machine tool, the first part of the analysis of the characteristics to be processed, choose the tool and workpiece were installed in each stage of the method of sliding, after the first milling drill.In determining the types of machine configurations based on the needs of the procedure for processing the contents of one card to complete the design of the three plans.Clamping hydraulic clamping, power source device for hydraulic cylinders, force agencies to putting the middle of delivery, the clamping device for the clips. Simple, easy centralized control, reliable clamping.
Key word: Machine Tool; Overall design; Three diagram and a card; Locating and clamping