Based on the harmony search algorithm, the cutting parameter optimization of rough milling spiral bevel gear big wheel and rough rolling spiral bevel gear small wheel by NC gear milling machine forming method is studied:
(1) Aiming at the rough machining of spiral bevel gear by forming method of yk2180r gear milling machine, an optimization model is established, which takes the shortest process time of a single piece as the objective function, the maximum allowable cutting speed, cutting power and tool durability of the blade as the constraints, and the cutter head speed and workpiece feed speed as the optimization variables. The optimization program is compiled by MATLAB. Combined with an example, the optimal cutting parameters of forming method are obtained;
(2) Aiming at the machining process of rough milling spiral bevel gear small wheel by hobbing method of yk2260m four axis NC gear milling machine, taking the shortest process time (maximum productivity) and the lowest machining cost of a single piece as the objective function, taking the allowable maximum cutting speed, cutting power and tool durability of the blade as the constraints, and taking the cutting speed, linkage shaft moving speed and single-step interpolation degree as the optimization variables, A multi-objective optimization model of cutting parameters for rough milling spiral bevel gears by NC Hobbing method is established. The optimization program is written in MATLAB, and finally the best rough milling cutting parameters are obtained. The effectiveness of the model is verified by a specific example.