【正文】 的形式、直徑的大小、加工方法、切削用量等具體條件確定 ， 組合機(jī)床的設(shè)計(jì)使用經(jīng)驗(yàn)表明，對鏜刀、鉆頭以及銑刀一類刀具，每根刀具冷卻液的平均 流量約為(2～6)L/min。工作循環(huán)應(yīng)當(dāng)盡可能的簡單而且控 制元件應(yīng)該少，否則機(jī)床的制造成本加大，安全性能也會降低。 。為了降低成本，應(yīng)多選用復(fù)合 刀具，盡量做到一次成形，減少裝夾次數(shù)。7工作循環(huán)說明 一臺組合機(jī)床，其工作循環(huán)常常是比較復(fù)雜的，不僅有好幾個(gè)動(dòng)力頭按不同的循環(huán)進(jìn) 行工作，而且這些循環(huán)還需其他部件，如移動(dòng)工作臺，回轉(zhuǎn)工作臺以及鼓輪等配合動(dòng)作。 在鑄鐵工件上攻絲時(shí)，則都采用潤滑液，以提高表面光滑度，減少功率的消耗。有時(shí)可采用蘇 打水，5%的乳化液，其乳化劑的主要成分可以是氧化油膏或硫化切削油。一些冷卻液中含有碳酸鈉，亞硝酸鈉等防銹劑，它們在金屬表面形成膠狀吸附膜或 氧化物薄膜，又能使金屬免受腐蝕的作用。當(dāng)整臺機(jī)床或機(jī)床的某一面全部用于完成攻絲工序時(shí)，廣泛地采用了 攻絲裝置。當(dāng)進(jìn)行到Ⅳ工位，加工橫向孔時(shí)，X Y Z 1的自由度已 被消除，X Y 2方向自由度也已被消除，在Z 2方向上，由于壓板的作用使工件在Z 2方向 的自由度也消除了。 如圖2環(huán)形套筒以H7/K6或H7/js6的過度配合裝入夾具，零件放入套筒后，在X、Y方向的自由度消除，同時(shí)采用壓板的方法。應(yīng)保 證夾緊變形不影響加工精度。例如討論長方體工件時(shí)，可以在底面布置3個(gè)不共線的約束點(diǎn)，在側(cè)面布置2個(gè)約 束點(diǎn)，在端面布置一個(gè)約束點(diǎn)，則底面約束點(diǎn)可以限制X Y Z 2 3個(gè)自由度，側(cè)面約束 點(diǎn)限制X Z 1 2個(gè)自由度，端面約束點(diǎn)限制Y 1這個(gè)自由度，就完全限制了長方體工件6個(gè)自由度。4夾具設(shè)計(jì)1）.軸承座鉆孔組合機(jī)床夾具分析，可以有各種不同的安裝方法：a)找正安裝法；b)夾具安 裝法。對于左半部分多軸箱刀 具，在加工1～7號孔以及Ⅲ工位加工10號孔時(shí)其功率總和：N/kW=7+=因?yàn)樽笾鬏S箱少于15跟鉆頭，所以h=，N/kW=對于右半部分多軸箱刀具，在Ⅴ工位擴(kuò)鉸1～7號孔以及攻絲，鉆頭的實(shí)際功率：N/kW=7=因?yàn)橛抑鬏S箱少于15根鉆頭，所以h=，N/kW=1247。3部件選用1）.功率選擇標(biāo)準(zhǔn) 動(dòng)力部件用以實(shí)現(xiàn)切削刀具的旋轉(zhuǎn)和進(jìn)給運(yùn)動(dòng)或只用于進(jìn)給運(yùn)動(dòng)，此機(jī)床實(shí)現(xiàn)了切削 刀具旋轉(zhuǎn)和進(jìn)給運(yùn)動(dòng)兩項(xiàng)內(nèi)容。(Ⅳ工位)加工直徑：16mm；切削用量v=(10～18)m/min；s=(～)mm/r；轉(zhuǎn)速350r/min。切削用量選的恰當(dāng)，能使組合機(jī)床減少停車損失，提高生產(chǎn)效率，延長刀具 壽命，提高加工質(zhì)量。 此次設(shè)計(jì)的軸承座鉆孔組合機(jī)床很大程度上使各工序盡量集中，發(fā)揮組合機(jī)床的優(yōu) 點(diǎn)，同時(shí)使各種誤差減小到最低限度。Soda ash % ~ %. Attacks the silk when the cast iron work piece, then all uses the lubr icant, by enhances the super ficia l evenness, reduces the power the consumption. Usua lly uses the petroleum, also ma y use the curing cutting pound and the oil mixture and so on. The refrigera nt current capacity should according to the cutting tool form, the dia meter size, the processing method, the cutting specifications and so on the concrete condition determine that, the aggregate machinetool design use exper ience indica ted, to boring cutter, drill bit as well as a milling cutter kind of cutting tool, each cutting tool refrigera nt mean discharge approxima tely for (2 ~ 6) L/Min. The overseas materia l remendation according to the processing dia meter choice, the cutting tool refrigera nt current capacity, the value see ever y time Table 2. 7 operating cycles expla nation A aggregate machinetool, its operating cycle is quite plex frequently, not only has severa l power heads to carry on the work according to the different circulation, moreover these circulation also needs other parts, like moves the work table, coordina te movement and so on rotary table as well as drum wheel. Various powers part keeps off the iron with the aid of the procedure control, carries on the work according to the stipulation order. The operating cycle must as far as possible be simple moreover controls the part to be supposed to be few, otherwise the engine bed production cost enlarges, the security performa nce also can reduce. This aggregate machinetool suits in the mass production uses, the production efficiency enhances greatly. In order to reduce the cost, should select the pound cutting tool, achieves a time of forming as far as possible, reduces the attire to cla mp the number of times. Chooses the appropriate electrical machiner y and the power head, chooses the appropriate cutting specifications and the cutting speed. 5 徐州 工 程 學(xué) 院 畢 業(yè) 設(shè) 計(jì) (論文 )附錄 2中文譯文立式軸承座鉆孔組合機(jī)床設(shè)計(jì) 作者：Cnsaw 1分工序、定工位 此次設(shè)計(jì)的立式軸承座鉆孔組合機(jī)床，其所加工的零件在汽車中應(yīng)用十分廣泛，應(yīng)該 屬于大批量生產(chǎn)項(xiàng)目，所以在設(shè)計(jì)時(shí)應(yīng)注意到盡量使加工簡單，但又不影響加工質(zhì)量。 B) jig peaceful process. basic loca lization principle analyzes here to discuss in 6 loca lizations, 6 degrees of freedom eliminations, in order to discovers the appropriate loca lization to cla mp the pla n. An object ma y have 6 independent movements in the space, namely along X, Y, the Z axis translationa l motion, respectively records is X1, Y1, Z1。 N cuts is the cutting power, selects the cutting specifications according to various cutting tools, center has extracted by 2 徐州 工 程 學(xué) 院 畢 業(yè) 設(shè) 計(jì) (論文 )the aggregate machinetool cutting force and the power formula。 Reamer tolera nce: 。 S= ( ~ ) mm/R。 Drills 8 ~ 10 holes, III location)。 3) drills 3 holes is f14, drills 2 threads bottom holes f14, Kong Haowei 8, 9。 2) drill