Numerical control machine tool is short for digital control machine tool, is a kind of automatic machine tool equipped with program control system. The control system can logically process programs with control codes or other symbolic instructions and decode them so as to make machine tools operate and process parts.

Compared with ordinary machine tools, CNC machine tools have the following characteristics:

● High processing precision, with stable processing quality;

● Can carry out multi-coordinate linkage, can process the shape of complex parts;

● Machining parts change, generally only need to change the numerical control program, can save production preparation time;

● Machine itself of high precision, rigidity, can choose favorable processing amount, high productivity (generally 3~5 times of ordinary machine tools);

● High degree of machine automation, can reduce labor intensity;

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

Because CNC lathe processing is a work of high precision, and its processing procedure concentration and parts clamping times less, so the use of CNC cutting tools put forward higher requirements, in the selection of CNC machine tool processing, should consider the following aspects of the problem:

① The type, specification and precision grade of cnc cutting tools should be able to meet the requirements of CNC lathe processing.

② High precision. In order to meet the high precision and automatic tool changing requirements of NC lathe machining, the tool must have a high precision.

③ High reliability. In order to ensure that no accidental tool damage and potential defects will occur in NC machining and affect the smooth process of machining, it is required that the tool and its combined accessories must have good reliability and strong adaptability. Precision hardware machining

High durability. CNC lathe machining tool, whether in rough machining or finish machining, should have higher durability than ordinary machine tool machining tool, in order to minimize the replacement or repair and sharpening tool and the number of times, so as to improve the CNC machine tool processing efficiency and ensure the quality of processing.

⑤ Good chip breaking and chip removal performance. cnc lathe processing, chip breaking and chip removal is not like ordinary machine tool processing can be handled manually in a timely manner, chips easily wound around the tool and workpiece, will damage the tool and scratch the workpiece has been processed surface, even injury and equipment accidents, affecting the quality of processing and the safe operation of the machine tool, so the tool has a better chip breaking and chip removal performance.