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 Qingdao Dadong Intelligent Equipment Technology Co., Ltd

Main products CNC turret punch, all electric servo turret punch, CNC bending machine
CNC laser cutting machine, CNC flexible production unit and other intelligent sheet metal processing equipment.

eighteen billion six hundred and sixty-nine million eight hundred and eighty-two thousand two hundred and sixty-three

Company news

Servo turret punch press

2020-04-25 11:11 ( )Browse times

Servo turret punch is the main product of our company. It has the functions of knock down hole, stretch, shutter, trimming and corner cutting, lettering and typing. Imported linear guide and ball screw are adopted to ensure high precision and long service life. In recent years, with the large torque servo motor and drive
Servo turret punch is the main product of our company. It has the functions of knock down hole, stretch, shutter, trimming and corner cutting, lettering and typing. Imported linear guide and ball screw are adopted to ensure high precision and long service life.
In recent years, with the improvement and promotion of high torque servo motor and drive system, servo motor driven main drive components have been successfully applied to CNC turret punch press products of Japan Amada, Muratec and other companies. At present, there are mainly two types of structure of servo motor driven main drive
On the basis of the traditional flywheel drive, the flywheel is connected with the main brake directly. Em2510nt CNC turret punch press made by Amada company in Japan is connected with two servo motors at both ends of the crankshaft to control their synchronous operation, so as to ensure enough torque output to the crankshaft and obtain high stamping frequency.
The other is that the servo motor is connected with the crank toggle mechanism through the reducer, which is the structure of the motor-2048lt CNC turret punch press made by Muratec company in Japan. Although the structure is more complex, it can reduce the load torque of servo motor by using the unique force increasing characteristic of crank toggle mechanism. Moreover, the crank rotates once, and the slider moves up and down twice, which can achieve higher stamping frequency.
Servo motor driven main drive not only retains the advantages of mechanical main drive structure mature and reliable, but also has many characteristics of hydraulic main drive
(1) energy saving
In the traditional mechanical main drive, the flywheel is driven by the motor to rotate and accumulate certain energy. During the working process, the flywheel energy is consumed during stamping and accumulates again when it returns to the top dead center. For the servo motor driven main drive, the energy does not need to be stored, and the servo motor does not need to rotate all the time. It only starts and provides the required energy during stamping. In addition, due to the elimination of flywheel, clutch and brake, the structure is simplified, so the power consumption is greatly reduced. Compared with the traditional machine, the energy saving of the two kinds of CNC turret punch press is 60% and 30% respectively, which is very significant.
(2) noise reduction
When the sliding block punching die penetrates the sheet metal, it will be vibrated and impacted by the stamping reaction force, and the noise will increase with the increase of the slider speed and impact pressure. The main body of the press is usually strengthened by means of a mechanical transmission. However, the servo motor driven main drive punch can control and adjust the speed of the slider at every moment of the stroke. Therefore, the punch can be controlled in the middle of the stamping process to stop it and reduce the speed when it enters the sheet metal, so as to reduce the noise. Generally, the noise reduction effect can reach about 10dB. In addition, by this way, the noise can be reduced and the impact of the punch into the sheet metal can be reduced, so as to prolong the service life of the die.
(3) improve efficiency
The slide stroke and speed of the main drive driven by servo motor can be adjusted arbitrarily. The short stroke required by stamping can be selected. At the same time, the appropriate speed can be set to synchronize with the feeding, so as to effectively improve the production efficiency. The em2510nt CNC turret punch of Amada company in Japan can achieve 500 times / min of large punching times under 25 mm step distance, and 1800 times / min for stamping, which reaches the high-end level of CNC turret punch press at present.
(4) optimize the process
By precisely setting the stop position of the slider, especially the bottom dead center, the machining accuracy of the forming die can be improved. According to the stamping process and die type, the slider is controlled by optimizing the program to adapt to various stamping modes, such as stamping, punching, forming, etc. The following are typical working modes:
 
1) High speed. The servo motor runs intermittently. According to the thickness of sheet metal and the size of punching hole, the punch is controlled to press with short stroke and fast speed.
 
2) Step rush. The servo motor runs continuously and presses continuously at appropriate frequency according to a certain feeding speed and step distance.
 
3) Forming. The position of punch bottom dead center and stop time are accurately set to ensure the full deformation and flow of material and improve the forming accuracy.
 
4) Silent processing. The impact speed of punch is controlled by program, and two-stage stamping is adopted to reduce vibration and noise and prolong die life.
 
5) Mold calibration. By monitoring the output torque of the servo motor, the alignment of the upper and lower dies is detected. In this mode, the sliding block is slowly lowered to the set position, and the torque of servo motor is monitored when the punch contacts the lower die. When it exceeds the preset value when entering smoothly, the punch will stop moving and give an alarm.
 
Servo turret punch is the current popular CNC punch equipment, gradually replacing mechanical and hydraulic type, which is purchased by a large number of customers. Welcome to inquire.

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