Development Of Automatic Assembly Machine Of Deep Groove Ball Bearing

Directed at inefficiency of manual assembling and large requirement about deep groove ball bearing, automatic assembly machine is developed for deep groove ball bearing by both empirical design and modern design. This machine suits for automatic assembling of deep groove ball bearing with ball gap in both the inner and outer rings. Through control of PLC this machine is able to finish such sequential process as feeding, loading ball and blanking. The whole system takes advantage of automatic operation and self diagnosis of fault. This paper researches mainly includes the following aspects:(1) According to function requirement of automatic assembly machine of deep groove ball bearing, analyzes proposed scheme and problems that would occur in the action process of each device individually. Working principle diagram of every mechanism are given. The plans and the whole action process of each device are determined ultimately.(2) On the basis of overall scheme of the equipment, its main devices included automatic dialing, sending and putting balls and other auxiliary devices are designed specifically. Relative position of each device is identified. With regard to structure diagrams, the specific working principle is illustrated in detail. Using ANSYS software to test whether strength and stiffness of bearing block and frame meets requirement.(3) Based on the design of mechanical structure, the electrical control system of the equipment is analyzed. The suitable types of cylinder for each device are chosen and pneumatic transmission system is confirmed. PLC is used to realize the automatic control of the equipment. Operation flow diagram, beginning program of an inner and outer rings positioning and the fourth pressing ball program of the equipment are presented.The equipment has been used in actual production. The success rate is98%, and the average speed is every11seconds. It reduces the labor intensity, and improves the bearing assembly efficiency and automation. The equipment makes a transition from manual assembly to automatic assembly.