一、螺絲攻有幾種
螺絲(si)(si)攻因使用的目的不(bu)同而有種(zhong)種(zhong)形(xing)狀,JIS規格上(shang)就規定有手(shou)絞(jiao)絲(si)(si)攻、螺帽(mao)絲(si)(si)攻、管用絲(si)(si)攻等(deng)等(deng)。主要(yao)種(zhong)類如下:
1、等徑手絞絲攻:一般用手絞絲攻(SKH.SKS)、鑄鐵(tie)用(yong)(yong)手絞絲攻(gong)(gong)(gong)、壓鑄件用(yong)(yong)手絞絲攻(gong)(gong)(gong)、塑樹脂件用(yong)(yong)手絞絲攻(gong)(gong)(gong)、高硬(ying)鋼(gang)用(yong)(yong)手絞絲攻(gong)(gong)(gong)、螺(luo)絲襯套(tao)用(yong)(yong)絲攻(gong)(gong)(gong)、加(jia)大尺寸用(yong)(yong)手絞絲攻(gong)(gong)(gong)(SKH.SKS)、碳化鎢絲攻(gong)(gong)(gong)。
2、螺帽絲攻:螺(luo)帽絲(si)攻(gong)(SKH.SKS)。
3、管用絲攻:一般管(guan)(guan)用(yong)(yong)推(tui)(tui)拔絲攻(gong)(gong)(SKH.SHS)、短螺絲形(xing)推(tui)(tui)拔絲攻(gong)(gong)、鑄鐵用(yong)(yong)推(tui)(tui)拔絲攻(gong)(gong)、軟鐵用(yong)(yong)推(tui)(tui)拔絲攻(gong)(gong)、管(guan)(guan)用(yong)(yong)推(tui)(tui)拔互塔斷續絲攻(gong)(gong)、一般管(guan)(guan)用(yong)(yong)平行絲攻(gong)(gong)(SKH.SKS)。
4、先端絲攻:一般用先(xian)端絲(si)(si)攻(gong)、不(bu)銹(xiu)鋼用先(xian)端絲(si)(si)攻(gong)、深孔用先(xian)端絲(si)(si)攻(gong)、槍膛絲(si)(si)攻(gong)(Gun Flute Tap)。
5、蝸旋絲攻:一般用(yong)蝸(gua)旋(xuan)絲攻(gong)(gong)(gong)、不銹鋼用(yong)蝸(gua)旋(xuan)絲攻(gong)(gong)(gong)、高碳鋼用(yong)蝸(gua)旋(xuan)絲攻(gong)(gong)(gong)、深孔用(yong)蝸(gua)旋(xuan)絲攻(gong)(gong)(gong)、左(zuo)蝸(gua)旋(xuan)絲攻(gong)(gong)(gong)。
6、無槽絲攻:鋼用(yong)(yong)High Roll Tap無槽(cao)絲(si)攻(gong)、鋼用(yong)(yong)New Roll Tap非(fei)圓絲(si)攻(gong)、非(fei)鐵金屬(shu)用(yong)(yong)無槽(cao)絲(si)攻(gong)、非(fei)鐵金屬(shu)用(yong)(yong)非(fei)圓絲(si)攻(gong)。
7、柄部特殊絲攻:莫氏(shi)推拔絲(si)(si)攻(gong)(gong)、彎柄(bing)(bing)絲(si)(si)攻(gong)(gong)、培安(an)絲(si)(si)攻(gong)(gong)、套柄(bing)(bing)絲(si)(si)攻(gong)(gong)、長柄(bing)(bing)絲(si)(si)攻(gong)(gong)、皮帶輪(lun)絲(si)(si)攻(gong)(gong)。
8、復合絲攻:有鉆(zhan)頭(tou)絲(si)(si)攻(gong)(gong)[A型(鑄(zhu)鐵用)鉆(zhan)頭(tou)絲(si)(si)攻(gong)(gong)、B型(鋼用)鉆(zhan)頭(tou)絲(si)(si)攻(gong)(gong)]、增徑(jing)絲(si)(si)攻(gong)(gong)、帶(dai)絞刀絲(si)(si)攻(gong)(gong)、異徑(jing)絲(si)(si)攻(gong)(gong)、帶(dai)道桿絲(si)(si)攻(gong)(gong)。
9、刃部可換絲攻:殼(ke)型絲(si)攻、鑲刃絲(si)攻。
10、其他:直徑增(zeng)大絲攻(gong)、種(zhong)絲。
二、螺絲攻頭攻和二攻之間的區別
絲錐的頭攻和二攻之間的區別如下:
1、造型不同 頭攻前端多了一小段攻形的不(bu)完(wan)全螺紋部(bu)分(fen),在攻絲過程中起導向和降低(di)切削力的作用(yong)。二攻沒有不(bu)完(wan)全螺紋部(bu)分(fen)。 2、攻絲對象不同 在攻(gong)(gong)通孔螺(luo)紋時,只需用頭攻(gong)(gong)就可(ke)以(yi)(攻(gong)(gong)到導向部分完全露(lu)出為止)。 對于(yu)盲孔(kong)螺紋(wen),如果想充分利用(yong)鉆(zhan)孔(kong)深(shen)度(du),以得(de)到盡可能長的完(wan)整螺紋(wen),則(ze)需使用(yong)二(er)攻,二(er)攻特別適用(yong)于(yu)盲孔(kong)螺紋(wen)長度(du)與孔(kong)深(shen)尺寸相差較小的場合。 3、前部錐體不同 頭攻前部(bu)攻體長(chang),便于導向,容易(yi)攻入。 二攻前部攻體短,使螺紋更圓滑,螺絲能(neng)夠輕易(yi)的擰進去。 4、外觀上不同 頭(tou)攻(gong)的切削(xue)部分斜度(du)較長(chang),一般有(you)5-7個不完整(zheng)牙形(xing);二攻(gong)較短(duan),只有(you)1-2個不完整(zheng)牙形(xing)。頭(tou)攻(gong)前部攻(gong)體(ti)長(chang),便于導(dao)向;二攻(gong)前部攻(gong)體(ti)短(duan)。 5、分類方式上不同 絲錐是用來加工內螺紋的刀具,是指碳素工具鋼或合金工具鋼滾牙(或切牙)絲錐,適(shi)用于手工(gong)攻(gong)絲(si)。按加工(gong)方式分類(lei)中的機用絲(si)錐一(yi)般為一(yi)支,手用絲(si)攻(gong)可分為三個(ge)一(yi)組(zu)或兩個(ge)一(yi)組(zu),即頭(tou)攻(gong)、二攻(gong)、三攻(gong)。 6、使用順序不同 頭攻(gong)先(xian)攻(gong)出螺(luo)紋的輪廓,二(er)攻(gong)在(zai)其基(ji)礎上把螺(luo)紋做(zuo)的更(geng)圓滑,使(shi)螺(luo)絲(si)能夠輕(qing)易的擰(ning)進去!頭攻(gong)是用來攻(gong)第(di)(di)一次(ci)的,二(er)攻(gong)是用來攻(gong)第(di)(di)二(er)次(ci)的。使(shi)用的時候一般通過專用扳手進行切削。