Discuss several approaches to CNC lathe machining errors.
In industrial production, there are numerous methods and measures for reducing errors when machining with CNC lathes. From the perspective of error elimination or reduction techniques, these measures can be categorized into the following two major types: 1. Error prevention techniques—these involve taking appropriate measures to reduce or eliminate errors, that is, either minimizing errors themselves or altering the quantitative relationship between errors and machining errors.
For Use CNC lathe machining In industrial production practice, there are many methods and measures for reducing errors. From the perspective of technologies used to eliminate or minimize errors, these measures can be categorized into the following two major types.
1. Error prevention technology refers to the implementation of appropriate measures aimed at reducing or eliminating errors—specifically, minimizing errors or altering the quantitative relationship between errors and machining errors.
For example, in CNC lathe machining When machining slender shafts, due to the poor rigidity of the workpiece, bending deformation is likely to occur, leading to geometric shape errors. ， To reduce or eliminate geometric shape errors, the following measures can be adopted.
① Use a follow rest to eliminate the influence of radial forces.
② By using reverse cutting, the compressive axial force is transformed into a tensile force. At the same time, an elastic center rest is employed to eliminate any potential bending deformation.
2. Error compensation technology refers to, under current conditions, analyzing and measuring existing errors and then artificially introducing an additional error into the process system based on these errors. This additional error is designed to counteract the original errors in the process system, thereby reducing or eliminating them. Hardware parts processing Error.
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2018-04-21
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