Machining accuracy of CNC lathe

The advantages of CNC lathes compared to ordinary lathes are: fast speed and high precision. Today, let’s learn a few details about the precision of CNC lathes:

    First, regularly maintain and adjust the spindle, bed, and inserts of CNC lathes, check damages and not replace them, improve the accuracy of CNC lathe processing, and monitor in real time during the work process, and constantly optimize the lathe In order to adjust the production site to better products in time. This is the simplest and most convenient way to improve the machining accuracy of economical CNC lathes. This adjustment method does not require very good technology, but requires employees to check from time to time to make adjustments.

    The second is the improvement in the electromechanical joint debugging. The improvement of the machining accuracy of the parts is mainly to improve the reverse deviation, positioning accuracy and repeat positioning accuracy. In terms of reverse deviation, when the deviation is too large, we must first correct it by mechanical manual means, and then use a professional way to further optimize when the error is within a certain range. In the adjustment of positioning accuracy, the error is continuously optimized through the degree of the microscope. The electromechanical joint adjustment method optimized in these aspects is the most efficient method among these adjustment methods. Although it will be more cumbersome but the effect is better.

    Third, this is through electrical adjustments. The adjustments in this area mainly include two aspects. One is the adjustment of machine tool parameters. In this angle, there are two aspects that affect the machining accuracy is the system gain and To locate the dead zone, in terms of system gain, we must pay attention to the mechanical damping of the economical CNC lathe and the moment of inertia, which all affect the machining accuracy of the lathe. There is also to minimize the dead zone of positioning, which can also improve the accuracy of lathe operation. These two aspects are complementary and must be adjusted simultaneously. Another aspect is that it can be adjusted through the application of some systems. Due to the continuous improvement of automation, economical CNC lathes use automatic remote control during operation, so we need to enter a series of remote control Real-time monitoring of the program, so that there is no need for excessive manual intervention, so that it can be supervised more effectively. The program can be used to supervise the setting control and then the accuracy of the lathe can be improved.

    Fourth, the machining accuracy of economical CNC lathes caused by the lead error of the ball screw is affected. The main factor that affects this aspect is the pulse. Therefore, in the process of manufacturing the ball screw, it is necessary to minimize the error caused by The influence of pulse on machining accuracy of economical CNC lathe.

    Fifth, the impact of the feed mechanism clearance on the machining accuracy of economical CNC lathes is mainly due to the impact of the problems in the components of the transmission machinery, which reduces the machining accuracy of the runaway lathe. The main components are gears, couplings, ball screws and support shafts. The problems between these components will affect the machining accuracy of CNC machine tools, so we need to strengthen the connectivity between their structures. The precision between them will affect the machining accuracy of the lathe, thereby reducing the gap between the various structures, and strengthening the tightness between the various structures will improve the machining accuracy of the economical CNC lathe.