弧面蝸杆传动的承载能力、传动效率和使用寿命都比圆柱面蝸杆传动高。因此,它有代替圆柱面蜗杆传动的可能。但是,弧面蜗杆的加工精度及工艺方法,还没象加工圆柱面蜗杆那样被人掌握,故还没有普遍推广使用。由于弧面蝸杆的几何形状,与一般圆柱面蜗杆不同,故采用的加工方法也不同。目前应用较广的,是采用滚齿机加工。但用这种方法,需经多次装夹工件,并且每次装夹都得精密找正。同时为降低工件转速,又须增加一套减速装置,这些都影响滚齿机的使用范围。此外,有些单位缺乏滚齿机,所以要普遍推广这种传动结构,是受到一定限制的。另一种方法,是利用车床加工。这种方法,工件可 The carrying capacity of arc worm drive, transmission efficiency and service life are higher than the cylindrical worm drive. Therefore, it has the possibility of replacing the cylindrical worm drive. However, the processing accuracy and process method of the arc-shaped worm has not been mastered like the processing of the cylindrical-surface worm, so it has not been widely used. Due to the geometry of the curved worm, and the general cylindrical worm is different, so the processing methods used are also different. Currently widely used, is the use of hobbing machine processing. However, in this method, the workpiece needs to be loaded more than once, and each time the clamps are precisely aligned. At the same time to reduce the workpiece speed, but also to increase a deceleration device, which affect the use of hobbing machine range. In addition, some units lack a gear hobbing machine, so to generalize this kind of transmission structure is subject to certain restrictions. Another way is to use lathe processing. This method, the workpiece can be