Precision testing of CNC machining in Dongguan

For CNC lathes with different shapes of guide rails, which planes should be manipulated separately for straightness errors?

The common shapes of the intermediate guide rails are rectangular guide rails and V-shaped guide rails. The horizontal appearance of the rectangular guide rail controls the straightness error of the guide rail in the straight plane. The two peripheral surfaces of the rectangular guide rail control the linearity error of the guide rail in the horizontal plane.

Dongguan CNC machining of the V-shaped guide rail, because the guide rail is composed of two oblique surfaces, the two oblique surfaces not only control the straightness error in the straight plane, but also control the straightness error in the horizontal plane.

When the scraping method is used to repair the linearity error of the guide rail, most of the method is selected. The research point method of Dongguan CNC machining is often used in the detection of shorter guide rails, because the flat ruler is simply deformed when it exceeds 2000mm, which is difficult to manufacture and affects the measurement accuracy. When scraping short guide rails,

The straightness error of the guide rail processed by Dongguan CNC is usually ensured by the accuracy of the flat ruler. At the same time, there is also a certain demand for the density of the research point per unit area. It can be based on the accuracy requirements in the middle of the processing and the nature of the guide rail in the middle of the processing. The degree of importance is specified as not less than 10-20 points per 25mm×25mm (the number of points per scraping square).

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