High-speed high-precision engraving and milling machining center

The utility model relates to a high-speed high-precision engraving and milling machining center which is characterized in that an X-axis sliding seat of an X-axis mechanism is supported in a 7 shape to form an anti-overturning structure during sliding, and an X-axis grating ruler measures the left-right stroke of the X-axis sliding seat in the X-axis direction; the Z-axis mechanism is provided with a pair of Z-axis guide rails and a pair of balance air cylinders, so that a Z-axis sliding seat slides along the Z-axis guide rails to form a double-balance sliding structure; a Z-axis grating ruler measures the up-and-down stroke of the Z-axis sliding seat in the Z-axis direction; an integrated motor of the B-axis mechanism drives a spindle seat and an electric spindle to swing left and right in the B-axis direction; the C-axis rotating table adopts a high-precision rotating table with an automatic anti-backlash device; the tool magazine device provides tools for different purposes, so that after a workpiece is cl