Precision parts processing

1. Adjust the feed mechanism to improve the machining accuracy of CNC lathes

First, the machining accuracy of 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 pulse. The influence of CNC lathe machining accuracy.

Second, the impact of the feed mechanism clearance on the machining accuracy of the CNC lathe is mainly due to the problems in the components of the transmission mechanism, 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 CNC lathe.

Second, the influence of errors in programming

The difference between CNC lathes and ordinary lathes lies in the accuracy of the parts, but because the errors in the programming process can be minimized, this requires us to reduce the errors from several aspects, thereby improving the processing of CNC lathes Accuracy.

First, it is due to the effect of interpolation error on the accuracy of the lathe. Therefore, we must try to use a certain method to reduce programming problems, using absolute programming, and the error can be eliminated is to insert the reference point quality for programming in the program;

Second, the effect of the approximation error on the final accuracy. Since there are some approximations in the process, errors will occur in this way. Therefore, it is necessary to master the profile equation as much as possible when programming, which will reduce the error to a large extent, so that the impact on the accuracy of CNC lathe processing can be eliminated;

Third, in the programming process, the machining accuracy of the CNC lathe is reduced due to the influence of the rounding error, so we should select the minimum linear displacement determined by the pulse equivalent for reference during machining. Therefore, when programming, work strictly in accordance with the specifications on the drawing as a benchmark.