It is necessary for both straight profile toroid worm and double enveloping toroid worm to be pruned on the faces of teeth.
直齿廓环面蜗杆或者二次包络环面杆蜗，均需进行修形加工。
This paper presents a calculating method for the edge of a new hob with straight groove and zero rake Angle. The original section edge of the said hob is on the surface of basic worm.
本文提出了对直槽零前角滚刀，原始截面刃形在基本蜗杆齿面上，其新滚刀刃形的计算方法。
In this paper, the axial section profile of worm with straight generatrix is analyzed and calculated according to Angle projection calculating.
本文利用角度投影计算法对直纹蜗杆轴向齿形进行了分析与计算。
This series machine is suitable for batch or single manufacturing column straight pinions, slope pinions, helical gear and worm gear.
该机床适用于批量及单件生产加工圆柱直齿轮、斜齿轮、 链轮及蜗轮。
The following conclusion is obtained. In the cases of straight gash, spiral gash, zero rake angle and positive rake angle, the hob worm profile from hob put into use to hob abandoned i…
结果表明：在直槽或螺旋槽、零前角或正前角等情况下，用本文设计的磨轮铲磨的滚刀，其基本蜗杆轴截形在从新到旧的整个使用过程中都是精确的。
In this paper a new grinding method, using small cylindrical face grinding wheel to grind straight outline hourglass worm, is put forward and the mathematical model is set up.
本文提出了用小圆柱面砂轮磨削直廓环面蜗杆的新方法，建立了数学模型。
In this paper a new grinding method, using small cylindrical face grinding wheel to grind straight outline hourglass worm, is put forward and the mathematical model is set up.
本文提出了用小圆柱面砂轮磨削直廓环面蜗杆的新方法，建立了数学模型。
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