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鹽城工學(xué)院本科生畢業(yè)設(shè)計(jì)說明書 2008
包縫機(jī)機(jī)體鉆孔組合機(jī)床總體及夾具設(shè)計(jì)
摘要：本設(shè)計(jì)課題來源于鹽城市江淮動(dòng)力集團(tuán)。為了提高加工精度和生產(chǎn)效率，需要設(shè)計(jì)一種組合機(jī)床來改善加工情況。本組合機(jī)床是針對工件左面上鉆4個(gè)φ5、4個(gè)φ4.2、3個(gè)φ3.3深度不一的11個(gè)孔和右面1鉆φ3.3深度不一的9個(gè)孔而設(shè)計(jì)的。該設(shè)計(jì)的內(nèi)容重點(diǎn)是總體設(shè)計(jì)和夾具設(shè)計(jì)兩方面。在加工工藝路線方案中,確定裝料高度,確定加工線各系列機(jī)床的基本類型及機(jī)床配置形式,確定機(jī)床部件型號及機(jī)床夾具,完成了“三圖一卡”的繪制及夾具的設(shè)計(jì)?！叭龍D一卡”主要根據(jù)自己計(jì)算切削力，切削轉(zhuǎn)矩等選擇相應(yīng)的機(jī)床部件。而夾具設(shè)計(jì)，用 “一面兩孔”定位方案消除工件的六個(gè)自由度，使工件獲得穩(wěn)定可靠的定位。工件夾緊裝置則選用結(jié)構(gòu)簡單、可靠、方便的螺旋夾緊裝置，使夾緊平穩(wěn)可靠。該機(jī)床滿足設(shè)計(jì)的要求。
關(guān)鍵詞：組合機(jī)床；夾具；
The Overall and Fixture Design of Modular Machine Tool for Drilling Holes of BAO Sewing Machine
Abstract: The design project is from Jiangdong Group, Yancheng. In order to improve the accuracy and efficiency, it is necessary to design a modular machine tool. The machine tool is designed for the synchronous processing of four φ5 holes, four φ4.2 holes, three φ3.3 left holes of varying depth of 11 holes , and nineφ3.3 right holes of verying depth . The design is mainly focused on both the overall design and jig design. In the processing line programe ,We must establish a high degree of putting the workpiece and identify the basic types of machine tools and the configuration types of machine tools , we are also determine the kinds of parts and fixture , Meanwhile the drawing of “Three Charts and One Card” (automatic drawing process chart, size relation chart, machining schematic diagram and production calculating card) and fixture design are completed. “Three Charts and One Card” are based mainly on its own calculation of cutting force ,cutting torque and other machine tool parts .As far as jigs are concered, with the aid of one platform and two bore according to the principle of six points positioning to eliminate the six degrees of freedom of workpiece for a stable and reliable positioning, and the synchronous processing of two surfaces of parts which can simplifying the process. Simple, reliable and convenient spiral grip devices are employed for a stable and reliable grip. The Modular Machine Tool can satisfy for the requirements of the design .
Key Words: Modular machine tool; Fixture;