The main development trend of CNC lathe processing
With the continuous development of CNC technology and the expansion of application fields, it plays an increasingly important role in the development of some important industries (IT, automobile, light industry, medical care, etc.) It is a major trend of modern development. In general, CNC lathes show the following development trends:
High speed and high precision: High speed and precision are the eternal goals of machine tool development. With the rapid development of science and technology, the speed of replacement of electromechanical products is accelerated, and the requirements for the precision and surface quality of parts processing are also higher and higher.
In order to meet the needs of this complex and changeable market, the current machine tools are developing in the direction of high-speed cutting, dry cutting and quasi-dry cutting, and the machining accuracy is constantly improving. The use of the electric spindle eliminates the links such as belts, pulleys and gears, which greatly reduces the moment of inertia of the main drive.
The dynamic response speed and working accuracy of the spindle are improved, and the vibration and noise problems of belts and pulleys are solved when the spindle is running at high speed. The electric spindle structure can make the spindle speed reach more than 10000r/min; the linear motor has high driving speed, acceleration and deceleration. Good characteristics, excellent response characteristics and following accuracy.
Using linear motor as servo drive eliminates the intermediate transmission link of ball screw, eliminates transmission clearance (including reverse clearance), small motion inertia, good system rigidity, and can be precisely positioned at high speed, thus greatly improving the Servo accuracy;
Because of its zero clearance in all directions and very small rolling friction, the linear rolling guide pair has small wear and negligible heat generation, and has very good thermal stability, which improves the positioning accuracy and repeatability of the whole process.
High reliability: The reliability of CNC machine tools is a key indicator of the product quality of CNC machine tools. Reliability is the premise of whether CNC machine tools can exert their high performance, high precision and high efficiency, and obtain good benefits.
CAD design of CNC lathes and modularization of structural design: With the popularization of computer applications and the development of software technology, CAD technology has been widely developed. CAD can not only replace the tedious drawing work by manual work, but more importantly, it can carry out design scheme selection and static and dynamic characteristic analysis, calculation, prediction and optimization design of large-scale whole machine, and can carry out dynamic simulation of each working part of the whole machine. .
On the basis of modularity, the three-dimensional geometric model and realistic color of the product can be seen in the design stage. The use of CAD can also greatly improve work efficiency and improve the one-time success rate of design, thereby shortening the trial production cycle, reducing design costs, and improving market competitiveness.
Networking and intelligence: In order to solve the problem of automation islands in the industry, the CNC machine tools are incorporated into the network as a network node, and an open software and hardware network connection method is developed. Realize the automation and intelligence of monitoring, decision-making and control in the processing process, and meet the needs of flexible processing and manufacturing.