Price of high speed CNC vertical lathe
What factors determine the accuracy of vertical lathe?
1. Geometric accuracy
The geometric accuracy of machine tool is the basic condition to ensure machining accuracy. The geometric accuracy of CNC machine tool reflects the geometric error of key mechanical parts of the machine tool (such as bed, saddle, column, spindle box, etc.) and the geometric error after assembly, including the flatness of worktable and the mutual perpendicularity of movement in each coordinate direction, the movement parallelism of worktable in X and Y coordinate directions, the radial circular runout of spindle hole, the movement of spindle axis The parallelism of the worktable, the spindle when the spindle box moves along the z-axis, the straightness of the spindle moving along the z-axis, and the perpendicularity between the spindle rotation axis and the worktable.
2. Transmission accuracy
The transmission accuracy of vertical machining center refers to the relative motion accuracy between the two ends of the relevant transmission chain in the machine tool. There is an error between the distance between the lead screw and the spindle and the actual distance between the lead screw and the spindle. This error will directly cause the pitch error of the workpiece. In order to ensure the machining accuracy of the workpiece, not only the machine tool is required to have the necessary geometric accuracy, but also the inner chain transmission chain is required to have higher transmission accuracy.
3. Positioning accuracy
The positioning accuracy of vertical machining center refers to the error between the arrival position of moving parts and the expected position under the control of NC system. The accuracy is the same as the geometric accuracy of the machine tool, which will have an important impact on the cutting accuracy of the machine tool, especially the hole spacing error in hole machining.
4. Oil film
Geometric accuracy, transmission accuracy and positioning accuracy are the static accuracy detected when there is no cutting load and the machine tool does not move or the moving speed is low. Because the actual work of the machine tool is affected by the cutting force and clamping force, the thermal deformation of the machine tool parts, the vibration of the machine tool, the oil film between the relative sliding surfaces and other factors also affect the machining accuracy of the workpiece.
Dalian Fenghua CNC Machine Tool Manufacturing Co., Ltd. is a professional machine tool equipment manufacturer specializing in CNC vertical lathe, Dalian single column double lifting vertical lathe, Dalian double column CNC vertical lathe and Dalian high-speed CNC lathe. Friends from all walks of life are welcome to negotiate and consult!