How to test the accuracy of CNC lathe machining

　　CNC lathes have many kinds of guide rails, so for different shapes of guide rails, each appearance should be separated from the control of which plane straightness error? Today xiaobian will discuss this problem with you.

　　Machining middle guide rail common shape rectangular guide rail and V - shaped guide rail.

　　The horizontal surface of the rectangular guide controls the straightness error of the guide in the straight plane. The two sides of the rectangular guide control the straightness error of the guide in horizontal plane.

　　For v-shaped guide, because the guide is composed of two oblique appearance, so two oblique appearance both control straightness error in the straight plane, together also control straightness error in the horizontal plane.

　　When scraping method is used to trim the straightness error of guide rail, the grinding point method is mostly used. Research point method is often used for the detection of short guide rails, because the flat ruler beyond 2000mm is simple deformation, difficult to make, and affect the accuracy of measurement.

　　Blow grind short guide rail, rail straightness errors usually by the ruler to ensure accuracy, together with the research point of density per unit area is must demand, and can be based on the machining accuracy requirements, and in the middle of the guide in this middle of the nature and importance of location, separation rules for every 25 mm x 25 mm research within not less than 10 to 20 points (that is, each party ideas within the number).