METHOD OF FORMING THE ARCHED TEETH OF SPUR GEARWHEELS Russian patent published in 1995 - IPC

FIELD: mechanical engineering. SUBSTANCE: used tool has two parts on which cutting members are placed on half of the loop of the Archimedean spiral with a pitch corresponding to that of the teeth of the processed wheel along the main circumference. The profile members are mounted in the place of the tool detachment. Each part of the tool is consequently installed into the position of contacting the profile member of the convex or concave side of the teeth, correspondingly. When the convex side of the teeth is processed, thepart of the tool with cutting members located along the arc with the increasing radius is used. When the concave side of the teeth is processed, the part of the tool with cutting members located along the arc with decreasing radius is used. After that the corresponding part of the tool is given the tangential feed. The processed wheel is given the corresponding additional rotation. EFFECT: enhanced efficiency. 4 dwg