1216-定位支座數(shù)控加工夾具設(shè)計(jì)

1216-定位支座數(shù)控加工夾具設(shè)計(jì),定位,支座,數(shù)控,加工,夾具,設(shè)計(jì) 大連水產(chǎn)學(xué)院本科畢業(yè)論文（設(shè)計(jì)）I目 錄摘要………………………………………………………………………………………………ⅤAbstract…………………………………………………………………………………………Ⅵ前言…………………………………………………………………………………… 11 零件的用途……………………………………………………………………………………21.1 計(jì)算零件生產(chǎn)綱領(lǐng) 確定零件的加工類型……………………………… 21.2 研究分析被加共零件圖和被加工零件的原始資料，審查改善零件的結(jié)構(gòu)工藝性?！?…………… …………… …………………………21.3毛坯種類的選擇………………………………………………………………………31.4零件毛坯的工藝性分析……………………………………………………………32 數(shù)控加工工藝分析…………………………………………………………52.1零件介紹…………………………………………………………………52.2數(shù)控加工工藝的合理性分析……………………………………………52.3數(shù)控加工工藝的特點(diǎn)……………………………………………………5大連水產(chǎn)學(xué)院本科畢業(yè)論文（設(shè)計(jì)）II2.3.1 數(shù)控加工的一般特點(diǎn)……………………………………………5 2.3.2數(shù)控加工工藝的特殊要求……………………………………… 6 2.4 零件的工藝性分析………………………………………………………62.4.1零件圖樣的具體工藝分析………………………………………72.5數(shù)控加工工藝過(guò)程的擬定………………………………………………92.5.1 工序順序安排的一般原則………………………………………… 9 2.5.2工步順序安排的一般原則…………………………………………………… 92.6進(jìn)給路線的確定…………………………………………………………102.6.1確定進(jìn)給路線的主要原則……………………………………… 10 2.7工件的裝夾………………………………………………………………102.7.1定位基準(zhǔn)選擇的一般原則………………………………………………10 2.7.2工件定位方案……………………………………………………………102.8切削用量的確定…………………………………………………………11 2.8.1背吃刀量的確定……………………………………………………112.8.2主軸轉(zhuǎn)速的確定……………………………………………………12大連水產(chǎn)學(xué)院本科畢業(yè)論文（設(shè)計(jì)）III2.8.3進(jìn)給速度的確定……………………………………………………12 2.9加工刀具的選擇…………………………………………………………132.9.1選擇數(shù)控刀具通常應(yīng)考慮的因素…………………………………13 2.9.2面銑刀主要參數(shù)的選擇……………………………………………132.9.3鉆孔刀具及其選擇…………………………………………………142.9.4鏜孔刀具及其選擇…………………………………………………143 工藝規(guī)程的制訂…………………………… ………… ………………………163.1零件的工藝性分析…………………………………………………………163.1.1工序 10………………………………………………………………163.1.2工序 20………………………………………………………………163.1.3工序 30………………………………………………………………16 3.1.4工序 40………………………………………………………………16 3.1.5工序 50………………………………………………………………17 3.1.6工序 60………………………………………………………………173.1.7工序 70………………………………………………………………17大連水產(chǎn)學(xué)院本科畢業(yè)論文（設(shè)計(jì)）IV總 結(jié)…………………………………………………………………………… 19致謝……………………………………………………………………………… 20參考文獻(xiàn)…………………………………………………………………………21大連水產(chǎn)學(xué)院本科畢業(yè)論文（設(shè)計(jì)）V摘 要 本論文主要研究的是不規(guī)則零件在現(xiàn)代制造業(yè)中的廣泛應(yīng)用，那么保證此類零件的加工精度就顯得尤為重要。本課題通過(guò)分析定位支座零件的結(jié)構(gòu)特點(diǎn)和加工要求，用數(shù)控加工中心來(lái)達(dá)到多工位的加工目的,提高零件在大批量生產(chǎn)制造過(guò)程中的效率,同時(shí)制定了一套較為合理加工工藝規(guī)程，從而為保證該零件的加工精度將提供一種經(jīng)濟(jì)實(shí)用的夾具設(shè)備，具有一定的實(shí)用價(jià)值，在論文中會(huì)以研究零件的工藝規(guī)程開(kāi)始著手設(shè)計(jì)最為適合的夾具，在不同的夾緊方案下進(jìn)行比較，并且以平面加工為定位方法，通過(guò)夾緊力的計(jì)算和定位誤差達(dá)到比較，選則最為恰當(dāng)、最為合理的夾具設(shè)計(jì)方案，從而保證了被加工零件的精度以及工件在加工過(guò)程中定位的可靠和準(zhǔn)確，夾具提供足夠大的夾緊力以防止工件位移，工件在夾緊力的作用下形變小。從而使得夾具在裝夾工件進(jìn)行加工的過(guò)程中正真發(fā)揮其作用,提高勞動(dòng)的生產(chǎn)效率、具備一定的實(shí)用價(jià)值。 關(guān)鍵字：夾具裝夾，定位，加工精度，平面加工,多工位大連水產(chǎn)學(xué)院本科畢業(yè)論文（設(shè)計(jì)）VIABSTRACTThis paper is a study of irregular parts in the modern manufacturing a wide range of applications, then ensure that such parts of the machining accuracy is particularly important. Positioning the subject by analyzing the structure of parts bearing the characteristics and processing requirements to achieve the CNC Machining Center multi-purpose processing, high-volume production parts to improve manufacturing process efficiency, while more reasonable to develop a set of processing a point of order, so as to ensure that the machining accuracy will provide an economical and practical equipment of the fixture has a certain practical value, in the paper will be to study the parts of the process started to design a point of order most suitable for the fixture,In different comparison under clamping and positioning with planar processing method for the calculation of clamping force and position error to compare the election is the most appropriate and most reasonable design of the jig, thus ensuring the accuracy of parts processed and the workpiece during processing of reliable and accurate positioning, fixtures provide the clamping force is large enough to prevent displacement of the workpiece, the workpiece clamping force in the role of small deformation. So that the workpiece clamping fixture for processing in the process of Chiang Kai-shek really play its role in enhancing the productivity of labor, have a certain practical value.Keywords: Fixture clamping, positioning, machining accuracy, planar processing, multi -