2015 Hua Fei CNC company dinner
How to choose a suitable welding positioner?
How to maintain the welding positioner?
Rescue measures for CNC cutting machine with large cutting error
How to protect a welding positioner?
How to purchase a good welding positioner?
Maintenance method of special welding chuck for positioner
How much do you know about the classification of the welding rotators?
Structure Types of Welding positioners
The 8 principles for choosing a welding positioner
Common fault problems and solutions of welding positioner
The crawling phenomenon of the CNC cutting machine means that the motor is at a low speed. Once the speed is increased, it will vibrate. At this time, an overcurrent alarm may occur in the current. The reason for this kind of alarm is that the working surface of the CNC cutting machine changes to keep up with the change of the feedback signal. It must have a large acceleration. This acceleration is given by the torque of the motor. Torque is the current signal. The large torque is caused by the large current signal. There is a drastic change in the current loop, which causes an overcurrent phenomenon. There is no alarm when vibrating, and when the vibration increases, an overcurrent alarm occurs.
The problem of crawling and vibration of the CNC cutting machine belongs to the problem of speed, so it should be started from the speed loop because the entire adjustment process of the speed of the cutting machine is completed by the speed regulator. The time constant of the speed regulator is that the integral time constant of the speed regulator is measured in milliseconds. Therefore, the servo motion of the entire CNC cutting machine is a transition and adjustment process.
Since the CNC cutting machine is an electromechanical integrated product, many factors affect its normal operation, such as the cause of the processing shape error, electrical problems, and the measurement of the fault momentum are all important factors that affect the processing geometry. If mechanical problems are also mixed with electrical problems, it is difficult to distinguish the true cause.
According to the of the CNC cutting machine's working principle, the position of the CNC cutting machine should be started from the position ring, and the speed problem should be considered for the speed ring. The so-called position ring is to study the dimensional problem of parts processing. The accuracy of the size of the parts is to study the position ring. Of course, the repeat accuracy of the partition size is also related to the reference point. We will discuss the reference point return later. The problem of speed is to study the speed loop and the parts related to the speed loop. The size and position issues should be considered for the position ring or the part related to the position ring.