For the guide rails of different shapes, which planes should be manipulated separately for the straightness errors of the Dongguan CNC lathes?
When Dongguan Cnc Machining chooses the scraping and grinding method to repair the straightness error of the guide rail, the grinding point method is mostly used. The research point method is often used in the inspection of shorter 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 is usually ensured by the accuracy of the flat ruler. At the same time, there are certain requirements 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 and importance of the position of the guide in the middle of the processing. It is stipulated that no less than 10-20 points per 25mm×25mm internal research point (that is, the number of points per scraping square).
The common shapes of Dongguan CNC machining 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 pen plane. The two peripheral surfaces of the rectangular guide rail control the linearity error of the guide rail in the horizontal plane. For 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.