With the continuous promotion and application of servo technology in forging industry, more and more enterprises begin to realize servo forging press . Which kind of servo press is suitable for forging enterprises?
First, how it works
Stepper motor: For each input of a control pulse, the motor rotates one step at a given angle. This angle right here is the step Angle. Step angle depends on the structure and driving mode of the motor. If the period of input pulse is long, the motor will turn slowly; if the period is short, the motor will turn fast.
Servo synchronous motor: The servo motor itself has the function of sending pulses, so each rotation Angle of the servo motor will send corresponding number of pulses, thus forming a response with the pulse accepted by the servo motor, or called a closed loop,In this way, the system will know how many pulses are sent to the servo motor, and how many are received back, so that the motor rotation can be controlled very precisely, so as to achieve accurate positioning, up to 0.001mm.
The difference between stepper motor and servo motor
Control mode: Stepper motor: analog control; Servo motor: Pulse control.
Control mode heat dissipation mode is different: stepper motor: fan heat dissipation; Slow heat dissipation servo motor: water cooling.
Different speed regulation performance: Stepper motor: poor speed regulation performance; Servo motor: switch between high speed and low speed at will.
Different overload capacity: Stepper motor: does not have overload capacity; Servo motor: it has strong overload capacity.
Speed response performance is different: stepper motor: it takes 400 ms to work from rest to acceleration; Servo motor: accelerates from rest to rated speed in a few milliseconds.
Development of Zhengzhou Haloong Servo forging press
Haloong switched from switched reluctance motors to stepper motors in 2009. However, during a short period of time from 2009 to 2010, this kind of motor was eliminated due to the high temperature of the stepper motor, the difficulty in solving the heat dissipation problem, the large starting current, the poor power saving effect and the high failure rate.
Synchronous servo motor
After haloong's constant exploration and long-term market research, we finally chose the synchronous servo motor. Compared with stepper motor, it has fast reaction speed, high-speed hammer attack, no heating of motor, and small starting current, and no impact on the power grid. The effect of electricity saving is obvious.
And as everyone was getting more and more interested in the servo press,How to choose a more suitable forging press? By fully understanding the advantages and disadvantages of various servo motors and combining with the production process of forging parts, the forging press driven by synchronous servo motor not only improves the flexibility and intelligence level of equipment, but also improves the working characteristics of the press, which has become the development direction of the new generation of press.