Application of Laeg LD320 series inverter in CNC machine tools

I. Overview of CNC machine tools

Numerical control machine tool is the abbreviation of numerical control machine tool, which is an automatic machine tool with program control system. The control system can

The program with control codes or other symbolic instructions can be processed logically, expressed by coded numbers, and input into the numerical control device through the information carrier. After operation, the numerical control device sends out various control signals to control the action of the machine tool, according to the shape required by the drawing.

Shape and size, automatically processing parts, is a typical mechatronics product.

Second, the working principle of CNC machine tools

CNC machine tools automatically process the machined parts according to the pre-programmed processing program. We write the processing route and process parameters of the parts into a processing program sheet according to the instruction code and program format specified by the NC machine tool, and then record the contents of this program sheet in the control center, and then input it into the NC device of the NC machine tool to direct the machine tool to process the parts.

Three, the characteristics of CNC machine tool use site

3.1 Metal processing has more oil pollution and fog, and the environment is relatively harsh;

3.2 Low frequency requires large torque, and high frequency is required to improve processing efficiency and product smoothness in the later stage of processing;

3.3 There are different requirements for the shape and size of the workpiece, and high speed stabilization accuracy is required when there is an impact load;

3.4 The fluctuation range of power grid is large.

Four, Shenzhen Laeg inverter CNC machine tool application scheme

LD320 series inverter adopts new DSP chip of TI company, supplemented by optimized vector control technology, low frequency and high torque,

Steady speed has high precision, which is the optimal choice for CNC machine tools.

4.1 Thickened three-proof paint technology has strong adaptability to harsh environments such as metal dust and corrosive gas;

4.2 wide range voltage use design, 310V~460V;

4.3 Optimized vector control technology can achieve 150% rated torque output at low frequency of 1Hz, with high speed stabilization accuracy;

4.4 Built-in simple PLC, 16-speed control, can realize multi-functional logic control to meet the requirements of various complex working conditions.