A combination of stepper motor and cam indexer is used in the machine to achieve precise positioning, and the effect on the required accuracy is determined by the type of matching of the two components. If it is a fixed station, then the stepper motor does not have the role of a cam indexer. However, if it stops at any point, inaccurate positioning will occur because the stepper motor will lose the step, 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. It also depends on the drivers they use. The current control procedures fall into two categories. One is photoelectric induction. This drive is currently used in most factories. Another type used is PLC processing, which can be used to start and stop at any angle, that is, stepping is used to adjust positioning and precision control by the number of pulses, but this control method has the common problems mentioned above. , the signal is lost, the division can not 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 pulse we call is not enough, and the vibration generated will affect the division accuracy of the cam indexer. Therefore, in stepper motors, many engineers adopt the method of not accelerating the reducer, and use a large torque transmission driving angle to ensure the torque of the load.
In the case of fixed station, the cam indexer has its own positioning and self-locking function, mainly to ensure high precision and good stability, but there is no self-locking function that stops at any point, because in the combination of stepper motor and cam indexer, the motor plays the role of driving function, and the cam indexer plays the role of precise positioning. In order to achieve greater accuracy, it is necessary to start by widening the diameter of the disc used by the indexer in order to guarantee an increase in the radiation angle, which will also guarantee the smoothness of the operation.
In conclusion, the combination of stepper motor and cam indexer is an eternal technology, which requires continuous scientific and technological research and exploration by engineers and experts in the industry to make this technology more optimized.