The invention discloses a brute force gear cutting cutter design method. When a gear is cut with brute force, a crossed axis angle is formed between the axis of a brute force gear cutting cutter and the axis of a machined gear, namely, a pair of staggering shafts is formed between the brute force gear cutting cutter and the machined gear, according to the engagement principle of no-gap engagementof a cylinder and the gear, namely, the screw pitch of a pitch circle is equal to the relation between the pitch circle gear thickness of the machined gear and the pitch circle gear thickness of the brute force gear cutting cutter, the end face pitch circle pressure angle of the brute force gear cutting cutter and the end face pitch circle pressure angle of the machine gear are calculated and obtained, and thus, in combination with other known parameters, design of the brute force gear cutting cutter is achieved. When the brute force gear cutting cutter designed by adopting the method machinesthe gear, in comparison with a common gear inserting cutter, the machining efficiency can be improved by 4-8 times, the gear surface roughness Rz is improved by 2-3 levels, and the gear machining precision reaches the ISO7 level.

Brute force gear cutting cutter design method

The invention relates to a method for optimizing design of a straight-tooth gear shaper cutter. The method is characterized by at least comprising the following steps that 1, the number Z0 of teeth of the gear shaper cutter is determined; 2, the maximum modification coefficient X0max is determined; 3, the minimum modification coefficient X0min is determined; 4, according to the number Z0 of the teeth, the maximum modification coefficient X0max and the minimum modification coefficient X0min in the steps from first to third, the distance from the fundamental section of the gear shaper cutter to the front end face of the gear shaper cutter and tooth profile parameters of the original section, the front end face and the inspection section of the gear shaper cutter are calculated; 5, the gear shaper cutter is designed according to the parameters calculated in the fourth step, and machining is conducted on a cut internal gear. The straight-tooth gear shaper cutter designed through the method has the advantages of being high in precision, reliability and efficiency, the manufacturing cycle of a gear cutter is shortened, and the manufacturing cost is reduced.

Method for optimizing design of straight-tooth gear shaper cutter

The invention discloses a method for performing analog computation on the whole depth of a gear after gear shaping. The method comprises the steps that the reference circle tooth thickness Sn of the gear to be machined is calculated according to the formula: Sn = MnZv[sin{Pi/ (2Zv)+2Xntan(alphan)/ Zv}]; the reference circle space width Sc of the gear to be machined is calculated according to the formula Sc = MnPi-Sn; the position Y where a slotting cutter is located when the cross-rod distance M is machined to meet the technological requirements in the gear shaping process of the slotting cutter is calculated according to the formula Y= (Sc-Sng)/tan (alphan); the whole depth of the gear after gear shaping is calculated according to the formula Hg = (da-df)/2, wherein the diameter of a root circle after gear shaping df = ZMn-2Y-2 Ho; if H+0.1 Mn>= Hg >=H, the design of the whole depth of the gear is qualified; if not, the design of the whole depth is disqualified, wherein H refers to the whole depth of the gear to be machined. The invention further discloses a device for performing analog computation on the whole depth of the gear after gear shaping.

Zhou Shangyi

Papers

Method and device for performing analog computation on whole depth of gear after gear shaping