The difference between CNC machine tools and ordinary machine tools

Introduction: the operation and monitoring of CNC machine tools are all completed in this CNC unit, which is the brain of CNC machine tools.  Compared with ordinary machine tools, CNC machine tools have the following characteristics:   

The operation and monitoring of CNC machine tools are all completed in this CNC unit, which is the brain of CNC machine tools.  Compared with ordinary machine tools, CNC machine tools have the following characteristics:  

1, strong adaptability to the processing object, adapt to the characteristics of mold and other products single production, mold manufacturing to provide a suitable processing method;  

2, high processing accuracy, with stable processing quality;  

3, can carry out multi-coordinate linkage, can process complex shape parts;  

4, processing parts change, generally only need to change the NUMERICAL control program, can save production preparation time;  

5, the machine itself of high precision, large rigidity, can choose favorable processing dosage, high productivity (generally 3~5 times of ordinary machine tools);  

6, machine tool automation degree is high, can reduce labor intensity;  

7, conducive to the modernization of production management.  Numerical control machine tools use digital information and standard code processing, transmission of information, the use of computer control method, for computer aided design, manufacturing and management integration laid a foundation;  

8. Higher requirements for the quality of operators and higher technical requirements for maintenance personnel;  

9, high reliability.  

Compared with traditional machine tools, CNC machine tools have the following characteristics.  

1, with high flexibility  

Machining parts on CNC machine tools, mainly depends on the processing program, it is different from ordinary machine tools, do not have to manufacture, replace many molds, fixtures, do not need to often readjust the machine tool.  Therefore, CNC machine tools are suitable for the processing of parts frequently replaced occasions, that is, suitable for single, small batch production and the development of new products, thereby shortening the production preparation cycle, saving a lot of process equipment costs.  

2, high processing accuracy  

Machining accuracy of nc machine tools in general can be up to 0.05 0.1 MM, nc machine tools is according to the form of digital signal control, numerical control device every output a pulse signal, the machine moving parts move a pulse equivalent (0.001 MM), and machine tool feed drive chain of reverse clearance and screw pitch error of the mean by the nc device march compensation, therefore,  CNC machine tool positioning accuracy is relatively high.  

3, the processing quality is stable and reliable  

Processing the same batch of parts, in the same machine tool, in the same processing conditions, the use of the same tool and processing procedures, the tool path is completely the same, the consistency of parts is good, quality stability.  

4, high productivity  

CNC machine tools can effectively reduce the processing time and auxiliary time of parts, CNC machine tools spindle speed five-axis linkage machining center and feed a large range, allowing machine tools to carry out large cutting amount of strong cutting.  CNC machine tools are entering the era of high-speed machining, CNC machine tool moving parts of the rapid movement and positioning and high-speed cutting, greatly improve productivity.  In addition, when used together with the tool bank of the machining center, the continuous processing of multiple processes can be realized on one machine tool, which reduces the turnover time between processes of semi-finished products and improves productivity.  

5. Improve working conditions  

CNC machine tool is adjusted before processing, input program and start, machine tool can have automatic continuous processing, until the end of processing.  What the operator has to do is to input the program, edit, parts loading and unloading, tool preparation, observation of the processing state, parts inspection and so on. The labor intensity is greatly reduced, and the labor of the machine operator tends to be intellectual work.  Additional, machine tool is united in wedlock commonly rise, already clean, safe.  

6. Modernization of production management  

CNC machine tool processing, can accurately estimate the processing time in advance, the tool used, fixture can be standardized, modern management, easy to realize the standardization of processing information, has been combined with computer aided design and manufacturing (CAD/CAM) organic, is the foundation of modern integrated manufacturing technology.