螺紋代號(hào)

1、BritishPipeThread(惠氏管螺紋)圓柱(BSPPBSPF)螺紋代號(hào)基本尺寸大徑mmd=D螺距mmp每英寸牙數(shù)tpi中徑mmd2=D2小徑外螺紋d3牙型高度H1底孔尺寸mmG1818＂9.7280.907289.1478.5660.5818.7G1414＂13.1571.3371912.30111.4450.85611.6G3838＂16.6621.3371915.80614.950.85615G1212＂20.9551.8

2、141419.79318.6311.16219G5858＂22.9111.8141421.74920.5871.16220.75G3434＂26.4411.8141425.27924.1171.16224.5G7878＂30.2011.8141429.03927.8771.16228G11＂33.2492.3091131.7730.2911.47930.5G118118＂37.8972.3091136.41834.9391.47935G

3、114114＂41.912.3091140.43138.9521.47939.5G138138＂44.3232.3091142.84441.3651.47941.5G112112＂47.8032.3091146.32444.8451.47945G134134＂53.7462.3091152.26750.7881.47951G22＂59.6142.3091158.13556.6561.47957G214214＂65.712.3091164

4、.23162.7521.47963G212212＂75.1842.3091173.70572.2261.47972.5G234234＂81.5342.3091180.05578.5761.47979G33＂87.8842.3091186.40584.9261.47985.5G314314＂93.982.3091192.50191.0221.47991G312312＂100.332.3091198.35197.3721.47997.75G

5、334334＂106.682.30911105.201103.7221.479104G44＂113.032.30911111.55110.0721.479110.5G412412＂125.732.30911124.251122.7721.479123G55＂138.432.30911136.951135.4721.479136G512512＂151.132.30911149.651148.1721.479148.5G66＂163.832

6、.30911162.351160.8721.479161.5普通螺紋絲錐標(biāo)準(zhǔn)介紹普通螺紋絲錐標(biāo)準(zhǔn)介紹（2006031314:56:22）1概述概述絲錐是加工各種中、小尺寸內(nèi)螺紋的刀具，它結(jié)構(gòu)簡(jiǎn)單，使用方便，既可手工操作，也可以在機(jī)床上工作，在生產(chǎn)中應(yīng)用得非常廣泛。對(duì)于小尺寸的內(nèi)螺紋來說，絲維幾乎是唯一的加工刀具。絲維的種類有：手用絲維、機(jī)用絲錐、螺母絲錐、擠壓絲錐等。前面Rz3.2Rz6.3Rz6.3Rz6.3柄部Ra0.8Ra1.6R

7、a1.6Ra3.23.絲錐螺紋牙型和尺寸極限偏差：1.絲錐螺紋公差、牙型半角偏差及大徑、中徑、小徑偏差應(yīng)符合GBT968的規(guī)定。2.中徑的檢查部位規(guī)定如下：手用和機(jī)用絲錐：在校準(zhǔn)部分起點(diǎn)檢查。螺母絲錐：在切削部分中點(diǎn)向校準(zhǔn)部分移動(dòng)12牙處檢查。手用絲錐的校準(zhǔn)部分起點(diǎn)距前端不足4牙時(shí)，中徑在距前端4牙處檢查。4.絲錐螺紋部分和柄部的圓跳動(dòng)，其值應(yīng)不大于下表3中的規(guī)定。表3絲錐螺紋部分和柄部的圓跳動(dòng)(單位：mm)切削部分的斜向圓跳動(dòng)校準(zhǔn)部分

8、的徑向圓跳動(dòng)絲錐名稱公稱直徑d高性能級(jí)普通級(jí)高性能級(jí)普通級(jí)柄部徑向圓跳動(dòng)d＜100.01810≤d＜180.0220.030.0180.020.0318≤d＜300.0260.0430≤d＜400.0300.022機(jī)用絲錐d≥400.0360.050.260.050.04d＜180.030.020.0318≤d＜300.04螺母絲錐d≥300.050.030.04d＜100.080.08手用絲錐和H4螺母絲錐d≥10；0.10；0.10