The combination of a stepper motor and a cam indexer is used in machinery to achieve precise positioning, and the impact on the required accuracy is determined according to the matching type of the two components. If it is a fixed station, then the stepper motor does not have the effect of the cam indexer. However, if it is stopped at any point, inaccurate positioning will occur, because the stepping motor will lose steps, which will directly affect the inaccurate positioning of the cam indexer.
In some factories, the number of pulses is used to fine-tune the position of the cam indexer. This also depends on the driver they use. The current control program is divided into two categories. One is photoelectric induction. This drive is currently used by most factories. The other type used is PLC processing, which can be used to start and stop at any angle, that is to say, the stepping is used to adjust the positioning and precision control by the number of pulses, but this control method will have the common problems mentioned above. , The signal is lost, and the division cannot be unified, and the accuracy of stopping at any point cannot be achieved.
The combination of stepper motor and cam indexer will produce vibration, mainly when the stepper motor is running at low speed, the output torque is not enough, that is, the amount of pulses we call is not enough, the resulting vibration will affect the division of the cam indexer Accuracy. Therefore, in stepping motors, many engineers adopt the method of not accelerating the reducer, and adopting a larger driving angle of torque transmission to ensure the torque of the load.
In the case of a fixed station, the cam indexer has its own positioning and self-locking function, mainly to ensure high accuracy and good stability, but there is no self-locking function for stopping at any point, because in the stepper motor and the cam indexer In the combination, the motor acts as a driving function, and the cam indexer acts as a precise positioning role. To achieve higher accuracy, it is necessary to start with widening the diameter of the disk used by the indexer to ensure that the radiation angle is increased, which will also ensure the smoothness of operation.
In short, the combination of a stepper motor and a cam indexer is an eternal technology, which requires engineers and technicians and experts in this industry to continue scientific and technological research and exploration to make this technology more optimized.
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