Cam two-dimensional curve measuring method

Abstract

The invention discloses a method capable of accurately measuring cam two-dimensional curves, which relates to the technical field of measuring and detecting the cam two-dimensional curves. The method comprises the following steps: the cam two-dimensional curves are changed into parabolic curves, and then, the cam two-dimensional curves which are changed into the parabolic curves are measured by an equidistant measuring method. The technical scheme of the method capable of accurately measuring the cam two-dimensional curves has high measuring accuracy.

Description

technical field [0001] The invention relates to the technical field of surveying and testing two-dimensional curves of cams; it is especially suitable for precision measurement and reverse engineering of cams and two-dimensional curve series parts in tobacco machinery, and is also suitable for mold manufacturing, machinery manufacturing and other fields. Rapid mapping, inspection and reverse engineering of two-dimensional curves on the measuring machine. Background technique [0002] A small part of the inspection of two-dimensional curves such as cams can be used with a universal tool microscope. Since manual measurement and data recording are required, the efficiency is low and the data processing is more complicated. Since its measuring range is generally 100×200mm, the measurement workpiece is small and can only be completed. Simple planar cams are difficult to do reverse engineering; some of them are completed with professional cam measuring instruments, but they are ge...

AI Technical Summary

Problems solved by technology

In the three-coordinate measurement technology, the radius of the stylus can be canceled for two-dimensional curve measurement, so that the test technical requirements can be reduced, but the generation of isometric curves can only be completed by improving the data processing level or CAD / CAM application ability, which is difficult for ordinary testers to achieve. Such a theoretical level and application ability, because the key stylus radius compensation is not completed during the measurement process; if the stylus radius compensation is activated, its measurement theory requires the stylus to approach the measurement along the normal vector of the measured point, otherwise it will be produce measurement error

[0005] As can be seen from the above, it is difficult to accurately measure the two-dimensional curve of the cam in the existing technology

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