Do the graduation design of CNC machinery, driven by a spiral column rotation through the motor, a bit like the screw drive, the motor should choose stepper motor and DC motor, stepper motor and DC motor, what is the difference between what is their applications? If you choose a good motor, the power of the motor according to what choice? Thank you all first. If the answer is satisfactory, we will definitely add the scoresThis motor is mainly to drive the rise and fall of the lift, the accuracy is not high.
Stepper motor prices higher, the drive is also more complex, if not precise positioning, of course, choose DC motor, high-power stepper motor is also rare (it is estimated that the process is difficult).Motor power selection, mainly considering the load torque, speed, and so on.The workbench rises and falls. I use the single-phase AC asynchronous motor more, the speed is simple, the circuit is not complicated, and now many manufacturers of AC motors are equipped with speed regulating system. DC motor is used less, power and carbon brush are two big trouble.
Stepper motors have high accuracy, each pulse can be accurate to 0.72 degrees (through the division of the drive can be higher), suitable for precise positioning, and his rotation is only related to the number of input pulse, more accurate.
Look at the use and accuracy, not high DC is good, a H circuit, PWM driven under OK.Stepper motor, then buy driver chip to do relatively simple, and simulate their own timing, then it is a bit fierce. Select the stepping motor's pitch angle, torque, and the parameters to be measured by the city.
