How to measure accuracy of machine tool cutting machine

We all know that the precision of the cutting machine influence factors, the stability and accuracy of the machine tool also affects the precision of the cutting machine cutting quality, so as the user again how to determine the stability and precision cutting machine of machine tools? Please follow in the footsteps of ZuoLong mechanical learning together, a few points affected the accuracy of cutting machine.





a, straightness,

1, a line in a plane or space straightness, such as CNC horizontal lathe bed guide rail straightness;

2, the straightness of the component, such as numerical control platform of vertical milling machine workbench benchmark t-slot straightness;

3, straightness of the sport, such as vertical machining center of straightness error of the X axis movement.

length measurement methods are: flat feet and indicator method, steel wire and microscopy, collimating telescope and interferometer method.

Angle measurement methods are: precision level method, autocollimation method and interferometer method.



2, flatness, Such as the flatness of workbench face vertical machining center)

measurement methods are: plate, flat and indicator, leveling ruler method, the precision level method and optical method.



3, parallel, equidistant degree and coincidence degree

1, line and plane parallel degree, such as CNC horizontal lathe axis parallelism of carrige mobile work frame;

2, parallel movement, such as vertical machining center countertops and parallelism between the X axis;

3, equidistant degrees, such as vertical machining center location hole and workbench rotary axis equidistant degrees;

4, coaxial degree or coincidence degree, such as CNC horizontal lathe tool hole axis and spindle axis coincidence degree.

5, measurement methods are: flat feet and indicator method, the method of precision level, indicator and good inspection method.



the perpendicularity of the four,

1, the perpendicularity of the straight line on the surface of the peace, such as vertical machining center spindle axis X and axis movement of vertical degree;

2, movement of the vertical degree, such as Z axis vertical machining center and the verticality between the X axis movement.

3, measurement methods are: flat feet and indicator method, square and indicator method, optical method ( Such as autocollimation, optical square, radiator) 。



5, rotating

1, radial runout, such as CNC horizontal lathe spindle axis side cone chuck positioning radial runout, or radial runout of spindle positioning hole.

2, periodic axial moving, such as CNC horizontal lathe spindle axial channeling the periodical;

3, face runout, such as CNC horizontal lathe spindle end of the card to determine a beating.

4, measurement methods are: the indicator method, inspection bar and indicator method, steel ball and indication.