一、螺絲攻有幾種
螺絲(si)攻(gong)因使(shi)用(yong)的目(mu)的不同而有種種形狀,JIS規格上就規定有手絞絲(si)攻(gong)、螺帽絲(si)攻(gong)、管用(yong)絲(si)攻(gong)等(deng)等(deng)。主(zhu)要種類如下:
1、等徑手絞絲攻:一般用手絞絲攻(SKH.SKS)、鑄鐵用(yong)(yong)手(shou)(shou)絞絲攻(gong)(gong)(gong)、壓(ya)鑄件用(yong)(yong)手(shou)(shou)絞絲攻(gong)(gong)(gong)、塑樹脂件用(yong)(yong)手(shou)(shou)絞絲攻(gong)(gong)(gong)、高(gao)硬鋼用(yong)(yong)手(shou)(shou)絞絲攻(gong)(gong)(gong)、螺絲襯套用(yong)(yong)絲攻(gong)(gong)(gong)、加大(da)尺寸用(yong)(yong)手(shou)(shou)絞絲攻(gong)(gong)(gong)(SKH.SKS)、碳化鎢絲攻(gong)(gong)(gong)。
2、螺帽絲攻:螺帽絲(si)攻(SKH.SKS)。
3、管用絲攻:一般管(guan)用(yong)推(tui)拔絲(si)(si)攻(gong)(gong)(SKH.SHS)、短螺絲(si)(si)形推(tui)拔絲(si)(si)攻(gong)(gong)、鑄鐵(tie)用(yong)推(tui)拔絲(si)(si)攻(gong)(gong)、軟鐵(tie)用(yong)推(tui)拔絲(si)(si)攻(gong)(gong)、管(guan)用(yong)推(tui)拔互塔(ta)斷(duan)續(xu)絲(si)(si)攻(gong)(gong)、一般管(guan)用(yong)平(ping)行絲(si)(si)攻(gong)(gong)(SKH.SKS)。
4、先端絲攻:一般(ban)用先端(duan)(duan)絲(si)攻(gong)(gong)、不銹鋼(gang)用先端(duan)(duan)絲(si)攻(gong)(gong)、深孔用先端(duan)(duan)絲(si)攻(gong)(gong)、槍膛絲(si)攻(gong)(gong)(Gun Flute Tap)。
5、蝸旋絲攻:一(yi)般用蝸(gua)旋絲(si)(si)攻、不銹鋼用蝸(gua)旋絲(si)(si)攻、高碳鋼用蝸(gua)旋絲(si)(si)攻、深孔用蝸(gua)旋絲(si)(si)攻、左蝸(gua)旋絲(si)(si)攻。
6、無槽絲攻:鋼用High Roll Tap無槽絲(si)(si)攻(gong)(gong)、鋼用New Roll Tap非圓(yuan)(yuan)絲(si)(si)攻(gong)(gong)、非鐵金屬(shu)用無槽絲(si)(si)攻(gong)(gong)、非鐵金屬(shu)用非圓(yuan)(yuan)絲(si)(si)攻(gong)(gong)。
7、柄部特殊絲攻:莫氏推拔絲(si)(si)(si)攻(gong)、彎(wan)柄(bing)絲(si)(si)(si)攻(gong)、培安絲(si)(si)(si)攻(gong)、套柄(bing)絲(si)(si)(si)攻(gong)、長柄(bing)絲(si)(si)(si)攻(gong)、皮帶(dai)輪絲(si)(si)(si)攻(gong)。
8、復合絲攻:有鉆頭絲(si)(si)攻[A型(鑄鐵用(yong))鉆頭絲(si)(si)攻、B型(鋼用(yong))鉆頭絲(si)(si)攻]、增徑絲(si)(si)攻、帶絞刀絲(si)(si)攻、異徑絲(si)(si)攻、帶道桿絲(si)(si)攻。
9、刃部可換絲攻:殼型絲攻(gong)、鑲刃(ren)絲攻(gong)。
10、其他:直徑增(zeng)大絲(si)攻、種絲(si)。
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(bie)如下:
1、造型不同
頭攻(gong)前(qian)端多了一小(xiao)段攻(gong)形(xing)的不完全螺(luo)紋(wen)部(bu)(bu)分,在攻(gong)絲過程(cheng)中起導向(xiang)和降低切削(xue)力的作用。二攻(gong)沒有(you)不完全螺(luo)紋(wen)部(bu)(bu)分。
2、攻絲對象不同
在攻通孔(kong)螺紋時,只需(xu)用頭攻就可以(攻到(dao)導向部(bu)分(fen)完全露出為止)。
對(dui)于(yu)盲孔(kong)(kong)螺(luo)紋,如果想充分利用鉆孔(kong)(kong)深度,以(yi)得到盡可能長的(de)完整螺(luo)紋,則(ze)需(xu)使用二攻(gong),二攻(gong)特別適用于(yu)盲孔(kong)(kong)螺(luo)紋長度與孔(kong)(kong)深尺寸相差較小的(de)場合。
3、前部錐體不同
頭攻(gong)前部攻(gong)體(ti)長,便于導向,容(rong)易攻(gong)入。
二攻前(qian)部攻體短,使螺(luo)紋更圓滑(hua),螺(luo)絲能夠輕易的擰(ning)進(jin)去。
4、外觀上不同
頭(tou)攻(gong)(gong)的(de)切(qie)削(xue)部(bu)分斜度較長,一般有5-7個不完整牙形;二(er)攻(gong)(gong)較短,只有1-2個不完整牙形。頭(tou)攻(gong)(gong)前部(bu)攻(gong)(gong)體(ti)長,便于導向;二(er)攻(gong)(gong)前部(bu)攻(gong)(gong)體(ti)短。
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,適用(yong)于手工(gong)攻(gong)(gong)絲(si)。按加工(gong)方式分(fen)類(lei)中的機用(yong)絲(si)錐一般為(wei)一支,手用(yong)絲(si)攻(gong)(gong)可分(fen)為(wei)三個(ge)一組或(huo)兩個(ge)一組,即頭攻(gong)(gong)、二攻(gong)(gong)、三攻(gong)(gong)。
6、使用順序不同
頭攻先攻出螺紋(wen)的(de)輪(lun)廓,二攻在其基礎上把螺紋(wen)做的(de)更圓滑,使螺絲(si)能夠輕易(yi)的(de)擰進(jin)去!頭攻是用(yong)來攻第一(yi)次的(de),二攻是用(yong)來攻第二次的(de)。使用(yong)的(de)時候(hou)一(yi)般通過專(zhuan)用(yong)扳(ban)手(shou)進(jin)行切削。