蝸(gua)輪蝸(gua)桿(gan)(gan)的(de)加工(gong)(gong)(gong)方(fang)法(fa)(fa) 蝸(gua)輪蝸(gua)桿(gan)(gan)的(de)加工(gong)(gong)(gong)方(fang)法(fa)(fa)很多，如切(qie)削(xue)、鑄(zhu)造(zao)、軋制、沖壓等，其(qi)(qi)中常(chang)用(yong)的(de)是(shi)切(qie)削(xue)加工(gong)(gong)(gong)方(fang)法(fa)(fa)。切(qie)削(xue)加工(gong)(gong)(gong)方(fang)法(fa)(fa)分為成(cheng)形法(fa)(fa)和(he)范(fan)成(cheng)法(fa)(fa)兩類。 1．成(cheng)形法(fa)(fa) 成(cheng)形法(fa)(fa)是(shi)在銑床(chuang)上用(yong)具(ju)有漸開線齒(chi)(chi)(chi)形的(de)成(cheng)形銑刀直(zhi)接切(qie)出齒(chi)(chi)(chi)形。常(chang)用(yong)的(de)有圓盤銑刀和(he)指狀銑刀兩種(zhong)(zhong)。切(qie)齒(chi)(chi)(chi)加工(gong)(gong)(gong)時，銑刀旋轉(zhuan)，同(tong)時輪坯沿齒(chi)(chi)(chi)輪軸線方(fang)向(xiang)移動(dong)(dong)。銑出一(yi)個齒(chi)(chi)(chi)槽以后，將輪坯轉(zhuan)過360°/z，再銑第二(er)個齒(chi)(chi)(chi)槽。其(qi)(qi)余(yu)依此類推(tui)。 這種(zhong)(zhong)切(qie)齒(chi)(chi)(chi)方(fang)法(fa)(fa)簡(jian)單，不(bu)(bu)需(xu)要(yao)專用(yong)機(ji)床(chuang)，但生(sheng)產率(lv)低，精度(du)低，故(gu)僅適用(yong)單件或(huo)小批量生(sheng)產及精度(du)要(yao)求不(bu)(bu)高的(de)齒(chi)(chi)(chi)輪加工(gong)(gong)(gong)。 2．范(fan)成(cheng)法(fa)(fa) 范(fan)成(cheng)法(fa)(fa)是(shi)利用(yong)齒(chi)(chi)(chi)輪的(de)嚙合原理進行加工(gong)(gong)(gong)齒(chi)(chi)(chi)輪的(de)一(yi)種(zhong)(zhong)方(fang)法(fa)(fa)。這種(zhong)(zhong)方(fang)法(fa)(fa)強制刀具(ju)同(tong)工(gong)(gong)(gong)件（輪坯）相(xiang)對運動(dong)(dong)同(tong)時進行切(qie)削(xue)。它們之(zhi)間的(de)運動(dong)(dong)關系同(tong)一(yi)對齒(chi)(chi)(chi)輪嚙合一(yi)樣，以此來保證齒(chi)(chi)(chi)形的(de)正(zheng)確和(he)分齒(chi)(chi)(chi)的(de)均勻。對于(yu)模數m和(he)壓力角a都(dou)相(xiang)同(tong)而齒(chi)(chi)(chi)數不(bu)(bu)同(tong)的(de)齒(chi)(chi)(chi)輪，可以用(yong)同(tong)一(yi)刀具(ju)進行加工(gong)(gong)(gong)。