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How to improve the CNC lathe machining accuracy?

2021-06-27

1.1 In terms of parts, there are machine tool adjustments to improve the precision of CNC lathe machining. First, how to improve the accuracy of CNC lathe machining from the aspect of mechanical adjustment. In terms of machine tool adjustment, it mainly includes these parts, spindle, bed, and inserts, etc., so that the lathe can meet the requirements, improve the accuracy of CNC lathe processing, and must be regularly monitored during the work process, and must be constantly optimized. The lack of lathes in order to timely adjust the production of better products. This is the easiest and most convenient way to improve the precision of CNC lathe machining. This adjustment method does not require good technology, but it requires employees to check and adjust them from time to time.

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 the machine parameters. In this perspective, there are two aspects which are the system gains that affect the machining accuracy. To locate the dead zone, in terms of system gain, we must pay attention to the mechanical damping of the lathe and the rotational inertia, which affects the accuracy of the lathe's machining. 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 it can be adjusted through the application of some systems. As the degree of automation continues to increase, CNC lathes are used to automatically control remotely during operation. Therefore, we need to enter a series of monitoring procedures during remote control. This eliminates the need for manual intervention, so that supervision can be more effective. It is possible to supervise the set-up control through the program and then increase the accuracy of the lathe processing.

1.2 Adjustment in the feed mechanism to improve the machining accuracy of CNC lathes Firstly, the machining accuracy of CNC lathes caused by the lead error of the ball screw is affected. The factors that influence this are mainly pulses, so they are manufactured. In the procedure of the ball screw, it is necessary to reduce the influence of the error caused by the pulse on the precision of CNC lathe machining.

Secondly, the effect of gaps in the feeding mechanism on the machining accuracy of CNC lathes is mainly due to the problems caused by the problems 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 accuracy of CNC machining, so we must strengthen the connectivity between their structures. The precision between them will affect the accuracy of lathe processing, thereby reducing the gap between the various structures, and strengthening the tightness between the various structures will improve the CNC lathe machining accuracy.

1.3 The impact of errors in programming The difference between CNC lathes and ordinary lathes is that the accuracy of the parts is different, but the errors that occur in the programming process can be minimized, which requires us to come from several aspects Reduce errors, thereby improving the accuracy of CNC lathe machining.

The first is due to the influence of interpolation error on the accuracy of the lathe. Therefore, it is necessary to use certain methods to reduce programming problems, use absolute programming, and eliminate the errors by inserting reference point quality to program in the program.

Second, the impact of the error on the final accuracy is approximated. Since there are approximations in the process, errors occur. So to master the profile equation as much as possible to reduce the error when programming, this can eliminate the impact on the accuracy of CNC lathe machining.

Thirdly, because of rounding error, the machining accuracy of the CNC lathe is reduced during the programming process. Therefore, we must select the minimum value of the linear displacement determined by the pulse equivalent to be used for reference when machining. Therefore, when programming, you must work strictly according to the specifications above the drawings.
Wood lathes can be used to create functional furniture components, beautiful decorative wood projects such as candlesticks and bowls, or even toys such as tops and yo yos. These machines range in size from hobby models that fit on a work bench to large industrial-sized machines weighing hundreds of pounds, but they all share some basic elements. Here are some instructions for using these unique machines. For those in the machining and turning crafts, it`s common knowledge that the Industrial Revolution had a significant impact on the evolution of the lathe and additional machine tools. As humans began developing tools and technology, honing new skills, and began more efficient ways of production, different power sources started to become standard. Motors now required electricity, meaning the conventional way of operating machine tools by human touch was being phased out as more and more machinists were [turning" to automation. But before automation and metalworking became regular practices in the machining world, there was woodturning and thus, wood lathes.
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