what is the composition of CNC machine tools? The answer is as follows:

The basic components of CNC machine tools include machining program carrier, CNC device, servo drive device, machine tool main body and other auxiliary devices. The basic working principles of each component are briefly described below.

1. machining program carrier: the parts machining program is stored in a program carrier with a certain format and code, such as punched paper tape, cassette tape, floppy disk, etc., and the program information is input to the CNC unit through the input device of the CNC machine tool.

2. Numerical control device: CNC system is a position control system, which interpolates the ideal motion trajectory according to the input data, and then outputs it to the executive parts to process the required parts.

3. Servo and measurement feedback system: The function of the servo system is to convert the command information received from the numerical control device into linear displacement or angular displacement of the machine tool executive parts after power amplification and shaping.

4. Machine tool body: it is the mechanical part that automatically completes various cutting processes on the CNC machine tool.

5. Auxiliary devices of CNC machine tools: Auxiliary devices are necessary supporting devices to ensure the full play of the functions of CNC machine tools.

Extended information:

The CNC machine tool has the following characteristics:

1. It has strong adaptability to the processed object, adapts to the characteristics of single-piece production of products such as molds, and provides suitable processing methods for mold manufacturing;

2, high processing precision and stable processing quality;

3, multi-coordinate linkage can be carried out, and parts with complex shapes can be processed;

4. When the machined parts are changed, it is generally only necessary to change the numerical control program, which can save the production preparation time;

5. The machine tool itself has high precision and rigidity, and can choose favorable processing dosage and high productivity (generally 3~5 times that of ordinary machine tools);

6. The machine tool is highly automated, which can reduce the labor intensity;

7. It is beneficial to the modernization of production management. Numerical control machine tools use digital information and standard codes to process and transmit information, and use computer control methods, which lays the foundation for the integration of computer-aided design, manufacturing and management.

8. It requires higher quality of operators and higher technical requirements of maintenance personnel;

9, high reliability.