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CNC Lathe Machining Accuracy

May 28, 2018

The advantages of CNC lathes compared to ordinary lathes are: high speed and high precision.

First, regular maintenance and adjustment of the CNC lathe spindle, bed and trim strips, etc., check the damage does not change, improve the accuracy of CNC lathe processing, in real-time monitoring during the work process, and continue to optimize the lathe The deficiencies in order to timely adjust the production of better products. This is the easiest and most convenient way to improve the machining accuracy of economical CNC lathes. This adjustment method does not require good technology, but it requires employees to carry out inspections from time to time to make adjustments.

The second is the improvement in the aspect of electromechanical coupling. The improvement of the machining accuracy of parts is mainly in the aspects of reverse deviation, positioning accuracy and repeated positioning accuracy. In the case of reverse deviation, we must first carry out the correction by mechanical manual method when the deviation is too large, and then use the professional method for further optimization when the error is within a certain range. In the adjustment of the positioning accuracy, the error is continuously optimized by the degree of the microscope. The electromechanical coordination method optimized in these aspects is the most efficient one of these adjustment methods. Although it is more complicated, it works better.

Third, this is done through electrical adjustments. The adjustments in this area mainly include two aspects. One is the adjustment of machine parameters. In this perspective, there are two other aspects that affect the machining accuracy: 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 as well as the rotational inertia, which affects the accuracy of the machining of the lathe. There is also the minimization of the dead zone of the positioning, which can also improve the accuracy of the lathe operation. These two aspects are mutually reinforcing and must be adjusted at the same time. Another aspect is that adjustments can be made through the application of some systems. As the degree of automation continues to increase, economical CNC lathes are automatically controlled remotely during operation. Therefore, we need to implement a series of remote control methods. The real-time monitoring program eliminates the need for manual intervention, which allows for more effective supervision. It can be used to supervise the set-up control and then improve the accuracy of lathe machining.

Thirdly, the machining accuracy of the economical CNC lathe caused by the lead error of the ball screw is affected. The factors that affect this are mainly pulses. Therefore, in the process of manufacturing the ball screw, the error should be reduced as much as possible. Influence of Pulse on Machining Accuracy of Economical CNC Lathes .

Fourth, the influence of gaps in the feeding mechanism on the machining accuracy of economical CNC lathes is mainly due to the problems caused by the problems existing in the components of the transmission machinery, thereby reducing the precision of the uncontrolled lathe processing. The main components are gears, couplings, ball screws and support shafts. The problems that arise between these components will affect the machining accuracy of CNC machine tools, so we must strengthen the connectivity between their structures. The precision between them will affect the accuracy of the lathe processing, thereby reducing the gap between the various structures, and strengthening the tightness between the various structures will improve the accuracy of economical CNC lathe machining.