硬齒面蝸桿(gan)的(de)加(jia)工(gong)(gong)(gong)方(fang)(fang)法(fa)(fa)(fa) 蝸輪(lun)蝸桿(gan)的(de)加(jia)工(gong)(gong)(gong)方(fang)(fang)法(fa)(fa)(fa)很(hen)多，如切(qie)(qie)(qie)削(xue)、鑄造、軋制(zhi)、沖壓(ya)等，其(qi)中常(chang)用(yong)(yong)的(de)是(shi)切(qie)(qie)(qie)削(xue)加(jia)工(gong)(gong)(gong)方(fang)(fang)法(fa)(fa)(fa)。切(qie)(qie)(qie)削(xue)加(jia)工(gong)(gong)(gong)方(fang)(fang)法(fa)(fa)(fa)分為成形(xing)法(fa)(fa)(fa)和(he)范(fan)成法(fa)(fa)(fa)兩類。 1．成形(xing)法(fa)(fa)(fa) 成形(xing)法(fa)(fa)(fa)是(shi)在銑(xian)床(chuang)上用(yong)(yong)具有漸開線(xian)齒形(xing)的(de)成形(xing)銑(xian)刀(dao)直(zhi)接切(qie)(qie)(qie)出齒形(xing)。常(chang)用(yong)(yong)的(de)有圓盤銑(xian)刀(dao)和(he)指狀銑(xian)刀(dao)兩種(zhong)。切(qie)(qie)(qie)齒加(jia)工(gong)(gong)(gong)時，銑(xian)刀(dao)旋轉，同(tong)時輪(lun)坯沿齒輪(lun)軸線(xian)方(fang)(fang)向移動。銑(xian)出一個齒槽以(yi)后，將輪(lun)坯轉過360°/z，再(zai)銑(xian)第二個齒槽。其(qi)余(yu)依(yi)此類推。 這種(zhong)切(qie)(qie)(qie)齒方(fang)(fang)法(fa)(fa)(fa)簡單，不(bu)需要(yao)(yao)專用(yong)(yong)機床(chuang)，但生(sheng)產率低(di)，精(jing)度低(di)，故僅適用(yong)(yong)單件(jian)或小批量生(sheng)產及精(jing)度要(yao)(yao)求不(bu)高(gao)的(de)齒輪(lun)加(jia)工(gong)(gong)(gong)。 2．范(fan)成法(fa)(fa)(fa) 范(fan)成法(fa)(fa)(fa)是(shi)利用(yong)(yong)齒輪(lun)的(de)嚙(nie)合原(yuan)理進行(xing)加(jia)工(gong)(gong)(gong)齒輪(lun)的(de)一種(zhong)方(fang)(fang)法(fa)(fa)(fa)。這種(zhong)方(fang)(fang)法(fa)(fa)(fa)強制(zhi)刀(dao)具同(tong)工(gong)(gong)(gong)件(jian)（輪(lun)坯）相對(dui)(dui)(dui)運動同(tong)時進行(xing)切(qie)(qie)(qie)削(xue)。它們之間的(de)運動關系(xi)同(tong)一對(dui)(dui)(dui)齒輪(lun)嚙(nie)合一樣，以(yi)此來保(bao)證(zheng)齒形(xing)的(de)正確(que)和(he)分齒的(de)均(jun)勻(yun)。對(dui)(dui)(dui)于模數m和(he)壓(ya)力角a都相同(tong)而齒數不(bu)同(tong)的(de)齒輪(lun)，可以(yi)用(yong)(yong)同(tong)一刀(dao)具進行(xing)加(jia)工(gong)(gong)(gong)。