408 加工渦輪盤榫槽的臥式拉床夾具,加工,渦輪,盤榫槽,臥式,拉床,夾具 I摘 要本文主要是通過分析航空發(fā)動(dòng)機(jī)上的渦輪盤榫槽的結(jié)構(gòu)特點(diǎn)，加工工藝等情況，確定設(shè)計(jì)方案，完成了加工渦輪盤榫槽的臥式拉床夾具的設(shè)計(jì)。此夾具主要用于拉削83076967型渦輪盤上均布的47個(gè)樅樹型的榫槽，由于本工序中對(duì)榫槽工作面距榫槽中心的距離以及47個(gè)榫槽的累記均布很小，并且榫槽的拉削加工工位較多，所以在此夾具的設(shè)計(jì)過程中，選用一端平面和短圓柱作為定位基準(zhǔn)，著重對(duì)定位裝置和分度裝置進(jìn)行了詳細(xì)系統(tǒng)地設(shè)計(jì)，采用體積小、轉(zhuǎn)動(dòng)靈活、操作方便、分度精度較高的端齒盤分度裝置，為了能夠減輕勞動(dòng)強(qiáng)度，提高勞動(dòng)生產(chǎn)率，用液壓機(jī)構(gòu)作為分度裝置的動(dòng)力系統(tǒng)。對(duì)夾具上各裝置作了合理、正確的布置，盡量減小了夾具的體積。簡(jiǎn)述了該夾具的使用和調(diào)整方法，并綜合分析了提高樅樹型榫槽表面粗糙度的方法。關(guān)鍵詞 渦輪盤榫槽 定位誤差 端齒盤式分度盤 IIAbstractThis article mainly is through the analysis aircraft engine on turbine disk key way unique feature, situations and so on processing craft, determined the design proposal, has completed the processing turbine disk key way horizontal-type broaching machine tongs design.This tongs mainly uses in on the broaching 83076967 turbine disks the even cloth 47 fir tree's key way, because in this working procedure is apart from the key way center to the key way working surface the distance as well as 47 key ways records the even cloth to be very small tiredly, and the key way broaching processes the location to be many, as soon as therefore in this tongs design process, selects holds straight the surface and the short column took the localization datum, emphatically carried on to the positioning device and the spacing device systematically has designed in detail, uses the volume slightly, the rotation nimble, the ease of operation, the indexing precision high end tooth plate spacing device, in order to could reduce the labor intensity, enhanced the labor productivity, took the spacing device with the hydraulic gearDynamic system. Each installment has made reasonably, the correct arrangement to the tongs on, reduced the tongs volume as far as possible. Has summarized this tongs use and the adjustment method, and the generalized analysis enhanced the fir tree key way surface roughness the method. Key word fir tree key way position error end tooth disc type graduated discIII目 錄摘 要…………………………………………………………………………… IAbstract……………………………………………………………………… II第 1 章 緒 論………………………………………………………………… 11.1 現(xiàn)代機(jī)床夾具發(fā)展的方向………………………………………… 11.2 現(xiàn)代制造業(yè)對(duì)夾具設(shè)計(jì)的要求…………………………………… 21.3 項(xiàng)目提出的背景及研究的內(nèi)容…………………………………… 21.4 項(xiàng)目研究的方法、預(yù)期結(jié)果及意義……………………………… 3第 2 章 渦輪盤件榫槽的加工特點(diǎn)及工藝裝備………………………………42.1 渦輪盤榫槽加工工藝的分析 ………………………………………42.1.1 渦輪盤榫槽加工工序圖的分析…………………………… 42.1.2 零件毛坯種類、特點(diǎn)……………………………………… 52.1.3 渦論盤的加工工藝規(guī)程分析……………………………… 52.2 拉削方法及工藝裝備的分析與選取……………………………… 62.2.1 拉削方法…………………………………………………… 62.2.2 工藝裝備……………………………………………………7第 3 章 渦輪盤分度夾具設(shè)計(jì)方案的確定………………………………… 103.1 定位原理和定位機(jī)構(gòu)………………………………………………103.2 定位基準(zhǔn)的選取以及定位誤差的分析……………………………113.2.1 定位基準(zhǔn)的選擇和定位裝置的設(shè)計(jì)…………………… 113.2.2 定位誤差的分析和計(jì)算………………………………… 113.3 夾緊裝置的設(shè)計(jì)……………………………………………………143.3.1 夾緊方案的確定………………………………………… 143.3.2 夾緊力的確定…………………………………………… 153.4 分度結(jié)構(gòu)的設(shè)計(jì)……………………………………………………183.4.1 分度方式選擇…………………………………………… 183.4.2 端齒盤式分度盤的優(yōu)點(diǎn)………………………………… 183.4.3 端齒盤式分度盤設(shè)計(jì)…………………………………… 193.5 分度裝置的動(dòng)力系統(tǒng)設(shè)計(jì)…………………………………………203.5.1 端齒盤分合的動(dòng)力系統(tǒng)……………………………………… 213.5.2 分度回轉(zhuǎn)機(jī)構(gòu)動(dòng)力設(shè)計(jì)………………………………… 223.5.3輔助夾緊裝置液壓缸的設(shè)計(jì)……………………………… 24IV3.6 夾具輔助機(jī)構(gòu)設(shè)計(jì)…………………………………………………253.6.1 轉(zhuǎn)動(dòng)剎車機(jī)構(gòu)…………………………………………… 253.6.2 分度指示機(jī)構(gòu)…………………………………………… 263.7 主要零件設(shè)計(jì)要點(diǎn)…………………………………………………263.8 主要尺寸計(jì)算………………………………………………………27第4章 分度夾具使用和調(diào)整…………………………………………………304.1 分度夾具使用………………………………………………………304.1.1 加工準(zhǔn)備………………………………………………… 304.1.2 控制過程………………………………………………… 304.1.3 拉削試料及試件………………………………………… 314.2 分度夾具調(diào)整和提高榫槽精度的方法……………………………324.2.1 調(diào)整徑向尺寸…………………………………………… 324.2.2 調(diào)整分度………………………………………………… 324.2.3 提高榫槽粗糙度方法…………………………………… 33第5章 經(jīng)濟(jì)性與資源分析……………………………………………………34結(jié) 論……………………………………………………………………………35致 謝……………………………………………………………………………36參考文獻(xiàn)……………………………………………………………………… 37專題論文……………………………………………………………………… 38附錄1 中文譯文……………………………………………………………… 46附錄2 外文文獻(xiàn)……………………………………………………………… 54