Abstract: To promote the performance of production, and enhance the machine utilization ratio, a scheduling method based on balancing takt of high flexibility numerical control manufacturing cells is proposed. First, the process planning is established on the basis of process characteristics and equipment capacity, then the balancing takt as optimal processing views combination is achieved on the basis of considering the preparation time, machine capacity and processing sequence. Second, the product scheduling models which considered the product changeovers time is proposed based on balancing takt result, and then a genetic algorithm is proposed to solve the model. Finally, a shell numerical control manufacturing cell is provided as example, and a comparative variable batch scheduling model and two-stage scheduling based on balancing takt is conducted. Study identified, two-stage scheduling based on balancing takt can significantly reduce the production cycle and promote the performance of numerical control machine.

Key words: flexibility, manufacturing cell, scheduling, takt balancing