| 1、 Industry Overview Stamping production is mainly aimed at plates. Through the mold, it can make blanking, punching, forming, deep drawing, trimming, fine blanking, shaping, riveting and extrusion parts, which are widely used in various fields. At present, the research and development of domestic high-speed punches basically keep pace with the development of domestic stamping Market, and another field for domestic punch manufacturers to compete with international first-class brands is technological innovation, such as control system, material technology, mold technology, etc. As the driving part of punch control, frequency converter also derives from generalization a special frequency converter. The performance of frequency converter plays a decisive role in the output stability, accuracy, reliability and load capacity of high-speed punch. 2、 Process description and control requirements 1. Process description The design principle of the punch press is to convert the circular motion into linear motion, and the flywheel, crankshaft (or eccentric gear), connecting rod, etc. are driven by the output of the main motor to achieve the linear motion of the slider. The motion from the main motor to the connecting rod is circular motion. 2. Equipment requirements At present, high-speed punches on the market have the following characteristics: (1) : the equipment body is made of high-strength cast iron, which is annealed and vibrated to eliminate stress, so as to ensure long-term accuracy. (2) : the dynamic balance system is adopted to reduce the vibration of the punch to the extreme, so as to ensure the accuracy of stamping products. (3) Frequency converter speed regulation system is adopted, with adjustable stroke speed, high stamping frequency, low noise, stable speed and zero error, which is suitable for a variety of stamping processes. Equipped with microcomputer control unit, all information is displayed on the desktop, which is centralized, convenient and convenient for maintenance. 3、 Solutions Performance characteristics of t510 vector converter T510 series vector converter has been applied in batches in a mechanical equipment company in Dongguan, and fully meets the stringent requirements of punch equipment. T510 series vector converter has the following unique advantages in punch equipment: (1) Vector control has fast response, large low-frequency torque, stable output in each frequency band, fast torque dynamic response and high speed stabilization accuracy. The overload capacity reaches 180%, the starting torque is 0.5Hz, and the output is 150%, which can ensure the reliable and stable operation of the punch. At the moment when the press clutch is closed, the output frequency is stable without fluctuation. (2) : the scientific and reasonable speed tracking algorithm enables the frequency converter to automatically track its current running frequency when the motor does not stop, so that it can stop and start in an emergency. When the motor is running inertia, it can start smoothly without fault, which greatly improves the safety performance of the punch. (3) : various flexible control modes meet the requirements of various complex working conditions. (4) : the structure adopts independent air duct design, and the fan can be disassembled freely with good heat dissipation. 4、 Electrical control diagram and parameter setting parameter Parameter description Set value remarks F0.01 Terminal start one F0.02 Analog variable speed regulation two F1.00 control mode 0 Open loop vector F1.02 Rated power of motor twenty-two F1.03 Rated voltage of motor three hundred and eighty F1.04 Rated current of motor forty-five F1.05 Rated frequency of motor fifty F1.06 Rated speed of motor one thousand four hundred and sixty F1.38 Self learning 0 F4.01 X1 terminal start one F4.02 X2 inching start one F6.00 Startup mode one F6.01 Maximum speed tracking two F6.02 Speed tracking speed sixty F6.07 Parking mode one Free parking F8.42 Fast current limiting enable one Enable on Fb.05 Overcurrent stall gain thirty | |||||||
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