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The Development Trend of Mini NC Lathe in China
High-speed, high-precision machine tool development is the eternal goal. With the rapid development of science and technology, mechanical and electrical products to speed up the upgrading of the precision machining parts and surface quality requirements are getting higher and higher. To meet the needs of this complex and changing market, the current machine tool is high-speed cutting, dry cutting and quasi-dry cutting direction, processing accuracy is constantly improving. On the other hand, the successful application of electric spindle and linear motor, ceramic ball bearing, high-precision large lead hollow inner cooling and ball nut strong cold low-temperature high-speed ball screw vice and ball retainer linear guide pair and other machine features Of the market, but also for the machine to high-speed, precision development to create the conditions.
Small CNC lathe using spindle, cancel the belt, pulleys and gears and other links, greatly reducing the main drive of the inertia, improve the spindle dynamic response speed and accuracy, and completely solve the spindle speed and belt drive pulley drive Of the vibration and noise problems. Spindle spindle structure can be used to achieve 10000r / min or more.
Linear motor drive speed, acceleration and deceleration characteristics of a good response characteristics and follow the accuracy. With linear motor for servo drive, eliminating the ball screw the middle part of the transmission, eliminating the transmission gap (including reverse gap), small inertia, system rigidity, high-speed precision positioning, which greatly improved Servo precision.
Linear rolling guide, because of its zero gap and very small rolling friction, wear, heat is negligible, has a very good thermal stability, improve the whole positioning accuracy and repeat positioning accuracy.
Through the use of linear motors and linear rolling guide rails, the rapid moving speed of the machine can be increased from the current 10 ~ 20m / mim to 60 ~ 80m / min, or even up to 120m / min.
The reliability of CNC machine tools is a key indicator of CNC machine tool product quality. CNC machine tools can play its high-performance, high precision and high efficiency, and get good benefits, the key depends on the level of its reliability.
Small CAD lathe design CAD, structural design modular, with the popularity of computer applications and software technology, CAD technology has been widely developed. CAD not only can replace the manual to complete the complicated drawing work, more importantly, can design options and large parts of the static and dynamic characteristics of the analysis, calculation, prediction and optimization of the whole machine can work parts of the dynamic simulation . On the basis of modularity in the design stage can be seen that the product of three-dimensional geometric model and realistic colors. Using CAD, can also greatly improve work efficiency, improve the design of a success rate, thus shortening the trial cycle, reduce design costs and improve market competitiveness. Modular design of the machine tool parts not only reduces the repetitive labor, but also can quickly respond to the market and shorten the product development and design cycle.