2488 燈罩拉深工藝及模具設(shè)計(jì),燈罩,工藝,模具設(shè)計(jì) 燈 罩 拉 深 工 藝 及 模 具 設(shè) 計(jì) 摘 要本設(shè)計(jì)題目為燈罩拉深模設(shè)計(jì)，體現(xiàn)了一般拉深零件的設(shè)計(jì)要求、內(nèi)容及方向，有一定的設(shè)計(jì)意義。通過(guò)對(duì)該零件模具的設(shè)計(jì)，進(jìn)一步加強(qiáng)了設(shè)計(jì)者冷沖模設(shè)計(jì)的基礎(chǔ)知識(shí)，為設(shè)計(jì)更復(fù)雜的冷沖模具做好了鋪墊和吸取了更深刻的經(jīng)驗(yàn)。本設(shè)計(jì)運(yùn)用拉深工藝及模具設(shè)計(jì)的基礎(chǔ)知識(shí)，首先分析了沖壓制件的工藝及主要設(shè)計(jì)尺寸計(jì)算，為設(shè)計(jì)凸、凹模及其他零部件做好了準(zhǔn)備；然后計(jì)算了總的沖壓力，便于選取壓力機(jī)；最后分析了沖壓件的特征，確定模具的設(shè)計(jì)參數(shù)、設(shè)計(jì)要點(diǎn)及頂出裝置的選取。本沖壓件為簡(jiǎn)單的旋轉(zhuǎn)體，可一次拉深成形，由于倒裝式復(fù)合模結(jié)構(gòu)簡(jiǎn)單，又可以直接利用壓力機(jī)的打桿裝置進(jìn)行推件，卸料可靠，便于操作，故本副模具才用倒裝式復(fù)合摸。本副模具的設(shè)計(jì)中，其結(jié)構(gòu)較正式的緊湊，因?yàn)榭梢岳孟履５膹楉斊鬟M(jìn)行壓邊，且壓力和行程都較大。模具中的壓邊圈既起壓邊作用也起頂件作用，此外還起毛坯定位作用。推件采用剛性推件裝置，由于推件塊又是拉深件底部的成形凹模，因此拉深終了，推件塊上頂面必須與模柄下底面剛性接觸。凹模采用硬質(zhì)合金以提高其壽命。關(guān)鍵詞：拉深模 壓邊圈 推件塊 拉深凸模 凹模拼塊 Chimney stretching technology and tool designAbstractThis design topic for the chimney stretching mold design, has manifested the general stretching components design request, the content and the direction, has the certain design significance. Through to this components mold design, further strengthened the designer cold ramming die design elementary knowledge, for designed more complex coldly flushes the mold to complete the upholstery and to absorb a more profound experience.This design utilization stretch craft and the mold design the elementary knowledge, has first analyzed the ramming workpiece craft and the main design size computation, for designed raised, the concave mold and other spare parts has prepared for; Then always calculated has flushed the pressure, was advantageous for selects the press; Finally has analyzed the pressing part characteristic, the definite mold design variable, the design main point and go against the installment the selection. This pressing part for simple, but a stretching forming, because inverts the type structure simply, also may directly hit the pole installment using the press to carry on pushes, is reliable, is advantageous for the operation, therefore this mold only then uses compound to invert the type to trace. In this mold design, its structure more official compact side, because may carry on using stamping die ball going against presses, also the pressure and the travelling schedule are all bigger. In on the one hand on the other hand the mold pressure the circle already plays presses role also gets up goes against a role, in addition also plays the semifinished materials localization function. Pushes to use the rigidity to push an equipment, because pushes a block also is stretching the base formed concave mold, thereforethe end, has pushed on a block the top to have and under the bottom surface rigidity contact. The concave mold uses the hard alloy to enhance its life. Key word: stretching dies nearby the mould pressing the circle pushes the block stretching raised mold concave mold to put together the block