【正文】 (2) with a tolerance of cylindrical spindle units. Set of fixed spindle hole with pieces of the same type template. The former applies to small batch and the rules of distribution of pore groups are artifacts (such as the hole groups in different diameter circle). The latter applies to a larger batchtype production of small quantities of turns, rigid better pitch accuracy is also high, but a different hole requires a different template. Multiaxis head can be mounted on vertical drillingtype radial drilling machine, press the drill itself with the various functions work. This multiaxis processing methods, due to drilling efficiency, range and accuracy of processing of the relationship between the use of limited scope. Multiaxle box ：As also the first multiaxis as the production as a standard ponent. . Secto39。在普通立式鉆床上進(jìn)行孔加工，通常是一個(gè)孔一個(gè)孔的鉆削，生產(chǎn)效率低，用非標(biāo)設(shè)備，即組合機(jī)床加工，生產(chǎn)效率高，但設(shè)備投資大。采用具有內(nèi)冷卻管道的麻花鉆，5－7巴壓力的冷卻液可直接進(jìn)入切削區(qū)，有利于排屑。不可調(diào)多軸箱與動(dòng)力箱按置在水平底座上，主軸箱庫轉(zhuǎn)動(dòng)時(shí)整個(gè)裝置緊固在進(jìn)給系統(tǒng)的溜板上。(2)諸如導(dǎo)向、功率、進(jìn)給、轉(zhuǎn)速與加工范圍等。因此，這種結(jié)構(gòu)只要改變模板，就能在一定范圍內(nèi)容易地改變孔型，并且可以達(dá)到比普通多軸箱更小的孔距。前一種適用于批量小且孔組是規(guī)則分布的工件（如孔組分布在不同直徑的圓周上）。前者效率較高，結(jié)構(gòu)簡(jiǎn)單，后者易于調(diào)整軸距。1975年法國巴黎機(jī)床展覽會(huì)也反映了多軸加工的使用愈來愈多這一趨勢(shì)。不同的加工方法有不同的特點(diǎn)，就鉆削加工而言，多軸加工是一種通過少量投資來提高生產(chǎn)率的有效措施。多軸加工應(yīng)用：據(jù)統(tǒng)計(jì)，一般在車間中普通機(jī)床的平均切削時(shí)間很少超過全部工作時(shí)間的15%。尤其隨著工業(yè)的發(fā)展，大型復(fù)雜的多軸加工更是引人注目。它可以采用以下一些設(shè)備進(jìn)行加工：立鉆或搖臂鉆上裝多軸頭、多軸鉆床、多軸組合機(jī)床心及自動(dòng)更換主軸箱機(jī)床。為了擴(kuò)大其贊許適應(yīng)性，發(fā)展了可調(diào)式多軸頭，在一定范圍內(nèi)可調(diào)整軸距。這種多軸加工方法，由于鉆孔效率、加工范圍及精度的關(guān)系，使用范圍有限。（2）夾具剛性好，加工時(shí)不形變，分度定位正確。值得注意的是，多數(shù)具有單獨(dú)的變速機(jī)構(gòu)，這樣可以適應(yīng)某一組孔中不同孔徑的加工需要。因?yàn)檗D(zhuǎn)塔不宜過大，故它的工位數(shù)一般不超過4—6個(gè)。工件夾緊于液壓分度回轉(zhuǎn)工作臺(tái)，以便加工工件的各個(gè)面。它比普通麻花鉆耐用，且進(jìn)給量大。s small and medium enterprises in product quality and production efficiency are the need for a new increase. But the processing means is far from sufficient. Many small and medium enterprises with their actual technical state of equipment improvements, through strengthening its own. In order to drilling for singleaxis machine tools, but the installation will bee a multiaxis multiaxle box of the drill, transformation into a multiaxis drilling, we could greatly shorten the processing time, improve production efficiency. s CNC technology, the scope of multiaxis machining will bee the broad, processing efficiency will be improved. production tasks ：A group of castiron joints have the same surface processing with multiple holes. In the general processing of vertical holes on the drill, usually a hole a hole drilling, production efficiency is low, use nonstandard equipment, that is, bination of machining, production efficiency is high, but the large investment in equipment. However, the number of mon vertical drilling machine to transform ordinary singleaxis vertical multiaxis drilling machine after transformation, multiaxis drilling machine can simultaneously perform multiple hole drilling, expansion, hinges, and other processes.