How to judge the temperature of the stepper motor of woodworking engraving machine overheating?
The stepper motor is composed of an iron core and winding coils. The winding has a resistance, and when it is energized it produces a certain amount of heat. In fact, it is like a woodworking engraving machine spindle, the same motor, the temperature will continue to rise, but the spindle motor cooling water circulation to reduce the heat. But the stepper motor is no water cooling, then how to judge its temperature overheating question?.
The temperature measuring method is simple and useful point thermometer, can be roughly: 1-2 seconds discrimination can contact with the hand, do not exceed 60 degrees; hand can touch, at about 70-80 degrees; a few drops of water dripping agile gasification, above 90 degrees.The temperature of the stepping motor is too high, which results in the occurrence of dislocation in the normal operation of CNC engraving machine. So, the best thing is to keep the machine short for the rest of the machine after an hour or so of revolution.
Actually, the question is simple. Stepper motor heating reasonable scale, motor heating promised to what extent, mainly depends on the internal insulation level of the motor. Internal insulation can be damaged at high temperatures (above 130 degrees). Therefore, the motor does not damage if it does not exceed 130 degrees inside. We can't measure the internal temperature accurately, but we can measure the surface temperature of the motor. When the internal temperature is 130 degrees, the outside will be around 90 degrees. Therefore, the stepper motor surface temperature is normal at 70-80 degrees.
