规定画法,绘制螺纹的主左两视图:
(1)外螺纹 大径M20 、螺纹长30、螺杆长40、螺纹倒角2X45 。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/d52a2834349b033b9671b4531ece36d3d439bdba?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
(2)内螺纹 大径M20 、螺纹长30、孔深40、螺纹倒角2X45 。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/b64543a98226cffc6948f43bb2014a90f703eadd?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
(3)粗牙普通螺纹,公称直径24mm,螺距3mm,单线,右旋,螺纹公差带:中径 、小径均为6H。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/7dd98d1001e93901d2aec6b770ec54e737d1968f?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
(4)细牙普通螺纹,公称直径30mm,螺距2mm,单线,右旋,螺纹公差带:中径 5g,大径6g。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/f31fbe096b63f624d647738a8c44ebf81a4ca325?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
(5)非螺纹密封的管螺纹,尺寸代号3/4英寸,公差等级为A级,右旋。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/a9d3fd1f4134970a1b105aa69ecad1c8a6865dd3?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
(6)梯形螺纹,公称直径32mm,螺距6mm,双线,左旋。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/9922720e0cf3d7cacc0075fff91fbe096a63a941?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)