Improvement of CNC Lathe Processing Accuracy
1.1 In terms of parts, there are machine adjustments to improve the accuracy of CNC lathe machining
Top of the list, first from the mechanical adjustment to discuss how to improve the accuracy of CNC lathe processing. In terms of machine tool adjustment, it mainly includes these aspects: the spindle, the bed, and the inserts, etc., so that the lathe can meet the requirements, and the accuracy of CNC lathe machining can be improved. In the course of the work, it must be monitored in real time, and it must be continuously optimized. The lack of lathes in order to promptly adjust the production of better goods. This is the easiest and easiest way to improve the machining accuracy of CNC lathes. This adjustment method does not require superb skills. However, employees are required to conduct inspections from time to time to make adjustments. The
The second is the improvement in the aspect of electromechanical coupling. To improve the machining accuracy of parts, it is first and foremost to advance in the areas of reverse error, positioning accuracy, and repeatability. In the aspect of reverse errors, we must first make corrections based on the mechanical manual method when the errors are too large, and then use the professional method to further optimize the errors when the errors are small enough to be within certain limits. In the adjustment of the positioning accuracy, the degree of the microscope is used to continuously optimize the error. The electromechanical linkage method that is optimized in these aspects is one of the highest power methods in these adjustment methods. Although it will be cumbersome, the effect is better. The
Thirdly, this is an adjustment made on the electrical side. The adjustment in this respect mainly involves two aspects. One is the adjustment of the machine parameters. There are two aspects in this view that are the system gains that affect the machining accuracy and To locate the dead zone, in terms of system gain, we must pay attention to the mechanical damping of the lathe and the rolling inertia, which affects the precision of lathe machining. There is also a way to minimize the dead zone of the positioning, which can also improve the accuracy of the lathe operation. These two aspects are mutually beneficial and must be adjusted together. Another aspect is that it can be adjusted through the application of some systems. Because the degree of automation is constantly improving, CNC lathes use active long-distance control during operation, so we have to enter a series of long-distance operations. Real-time monitoring of the program, so that there is no need for excessive manual intervention, so that it can be more effective supervision, can be set to control the process through the program and then can improve the accuracy of lathe processing. The
1.2 Adjust the feed organization to improve the machining accuracy of CNC lathes
On the top of the list, the machining accuracy of CNC lathes caused by ball screw lead errors is affected. In this regard, the factors that affect this are mainly pulses. Therefore, in the process of manufacturing the ball screw, errors should be reduced as much as possible so that the pulses are numerically controlled. Lathe machining accuracy. The
Second, the influence of the feed gap on the accuracy of CNC lathe machining, which is mainly due to the influence of the problems in the composition of some of the transmission machinery, and then reduces the precision of the control lathe processing. Some of the primary components are gears, couplings, ball screws and support shafts. The doubts presented between these constituents will affect the machining accuracy of CNC machine tools, so we must strengthen the connection between their structures. The precision between them will affect the accuracy of the lathe processing, then reduce the gap between the various structures, and strengthen the tightness between the various structures will improve the CNC lathe machining accuracy. The
1.3 The Impact of Errors Presented in Programming
The difference between CNC lathes and ordinary lathes is that the accuracy of the parts is not the same, but the error that the program presents during the preparation process can be minimized, which requires us to reduce errors in several ways, and then improve the CNC lathe The precision of processing. Top of the list is due to the impact of interpolation errors on the accuracy of lathes. Therefore, we must try our best to use certain methods to reduce programming queries, use affirmative programming, and eliminate errors by programming the program by reading the point quality. Second, the impact of impending error on the final accuracy. Because there is an approximate situation in the process, this will lead to errors. Therefore, to master the profile equation as much as possible to programmatically reduce errors to a great extent, so that the influence on the precision of CNC lathe machining can be eliminated. Thirdly, because of the influence of rounding errors in the programming process, the machining accuracy of CNC lathes is reduced. Therefore, we must select the minimum value of the linear displacement determined by the pulse equivalent when machining. Therefore, at the time of programming, you must strictly follow the specifications above the drawings as a reference.