Application of Spindle of Machine Tool

V11 ACI Inverter in CNC Lathe Spindle Control Program

Ò»¡¢CNC  Lathe  Work  Site  Photos

¶þ¡¢Basic Requirements for Machining Operations of CNC Lathe
1¡¢ High cutting precision
2¡¢High stability, complex processing, irregular shape parts of the high pass rate
3¡¢ High flexibility, low impact, the requirements of the control system response speed
4¡¢High productivity

Èý¡¢V11 Variable Frequency Control System Configuration and Schematic
1¡¢Control system configuration
¢Ù   V11 frequency inverter ¢ÚSpindle motor    ¢Û  Transmission part  ¢Ü Numerical control operating system ¢Ý Encoder  ¢Þ£¨PG¿¨£©  Drive (PG card)
 Note: install encoder, PG card as optional, selected according to the closed-loop vector control system for machining process.
 2¡¢System schematic diagram:

ËÄ¡¢Advantages of V11 frequency conversion control system
1¡¢Fully satisfy the requirement of high productivity, high cutting accuracy, good stability, high flexibility and fast response speed.
2¡¢V11 vector control mode, dynamic response speed is very fast, so that the motor spindle can be high-speed and stable operation.
3¡¢Meet the complex and irregular shape parts processing requirements, in the low frequency state (1Hz), can maintain 100% of the output torque, so as to ensure the stable operation of the spindle in low frequency.
4¡¢Plus deceleration time can be set to 0.1 seconds to achieve fast forward and reverse operation.
5¡¢Strong anti-interference ability, through strict CNC comprehensive test, will not cause any disturbance to the system.
6¡¢The speed is high, the rate of change is small at low speed, and the operation is stable.

Îå¡¢System  Characteristics  and  Wiring  Diagram of CNC Lathe
1¡¢The NC lathe system is controlled by two signals to control the rotation of the main shaft of the lathe: One is to simulate the voltage signal 0~10V input, and the other is to simulate the current signal.
2¡¢The system requires that the spindle of the lathe can be quickly and quickly switched to run.
3¡¢Basic wiring diagram:

Áù¡¢V11 Variable Frequency Control System Main Operation Steps and Parameter Setting Table
1¡¢From the start of motor and load, frequency converter, motor parameters self-learning (correct input motor nameplate parameters).
2¡¢Select the vector control mode (SVC), and then enter the required parameters of the system.
3¡¢The specific parameters are set as follows:

Æß¡¢Application
    The frequency conversion control system of the numerical control lathe is only one of the many applications of V11. V11 inverter control chip using high-performance DSP chips produced in the United states with high speed. As the domestic high-end inverter, its excellent quality and performance can meet the practical application requirements.

Attached: V11 inverter in the numerical control lathe on the measured data:
1¡¢Configuration of NC Lathe

2¡¢Operation Data

3¡¢Shutdown Current and Low Frequency Torque