蝸(gua)輪蝸(gua)桿的(de)(de)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)方法(fa)(fa)(fa)(fa) 蝸(gua)輪蝸(gua)桿的(de)(de)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)方法(fa)(fa)(fa)(fa)很多，如切(qie)削(xue)、鑄造、軋制、沖(chong)壓等(deng)，其(qi)中常(chang)用的(de)(de)是(shi)切(qie)削(xue)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)方法(fa)(fa)(fa)(fa)。切(qie)削(xue)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)方法(fa)(fa)(fa)(fa)分為成(cheng)(cheng)形(xing)法(fa)(fa)(fa)(fa)和范(fan)成(cheng)(cheng)法(fa)(fa)(fa)(fa)兩類(lei)。 1．成(cheng)(cheng)形(xing)法(fa)(fa)(fa)(fa) 成(cheng)(cheng)形(xing)法(fa)(fa)(fa)(fa)是(shi)在銑(xian)(xian)(xian)床上用具(ju)有漸(jian)開(kai)線齒(chi)(chi)(chi)形(xing)的(de)(de)成(cheng)(cheng)形(xing)銑(xian)(xian)(xian)刀直接切(qie)出齒(chi)(chi)(chi)形(xing)。常(chang)用的(de)(de)有圓盤銑(xian)(xian)(xian)刀和指狀銑(xian)(xian)(xian)刀兩種(zhong)。切(qie)齒(chi)(chi)(chi)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)時(shi)，銑(xian)(xian)(xian)刀旋轉，同(tong)(tong)時(shi)輪坯(pi)沿(yan)齒(chi)(chi)(chi)輪軸線方向移動。銑(xian)(xian)(xian)出一個齒(chi)(chi)(chi)槽(cao)以后，將(jiang)輪坯(pi)轉過(guo)360°/z，再(zai)銑(xian)(xian)(xian)第(di)二個齒(chi)(chi)(chi)槽(cao)。其(qi)余依此(ci)類(lei)推。 這種(zhong)切(qie)齒(chi)(chi)(chi)方法(fa)(fa)(fa)(fa)簡單(dan)，不需要專用機床，但生產率低(di)，精度(du)低(di)，故僅適用單(dan)件或小批量生產及精度(du)要求不高的(de)(de)齒(chi)(chi)(chi)輪加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)。 2．范(fan)成(cheng)(cheng)法(fa)(fa)(fa)(fa) 范(fan)成(cheng)(cheng)法(fa)(fa)(fa)(fa)是(shi)利用齒(chi)(chi)(chi)輪的(de)(de)嚙(nie)合原理(li)進行加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)齒(chi)(chi)(chi)輪的(de)(de)一種(zhong)方法(fa)(fa)(fa)(fa)。這種(zhong)方法(fa)(fa)(fa)(fa)強制刀具(ju)同(tong)(tong)工(gong)(gong)(gong)件（輪坯(pi)）相(xiang)對(dui)運(yun)動同(tong)(tong)時(shi)進行切(qie)削(xue)。它們之間的(de)(de)運(yun)動關系同(tong)(tong)一對(dui)齒(chi)(chi)(chi)輪嚙(nie)合一樣，以此(ci)來保證齒(chi)(chi)(chi)形(xing)的(de)(de)正確和分齒(chi)(chi)(chi)的(de)(de)均(jun)勻。對(dui)于模數m和壓力角a都相(xiang)同(tong)(tong)而齒(chi)(chi)(chi)數不同(tong)(tong)的(de)(de)齒(chi)(chi)(chi)輪，可以用同(tong)(tong)一刀具(ju)進行加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)。