Overall layout of CNC carving and milling machine tool

CNC carving and milling machine tool numerical control system of the basic layout of usually have stud and longmen 2 kinds of architecture. Pillar type structure stability than the gantry is poor, so choose gantry. Longmen layout are often shown below 2 kinds of scheme, these two layouts are used gantry frame structure, the stiffness of carving machine was high. Fixed layout scheme, a workbench, engraving head make lateral and move up and down, pillar for longitudinal movement. The program is easy to deformation for different longitudinal length of engraving machine ( How many a carving machine) 。 Due to the workbench, carrying capacity is good, suitable for heavy workpieces. But carving head motion precision is difficult to guarantee and gantry is bulky. Fixed layout scheme, b pillar, engraving head make lateral and move up and down, table for the longitudinal direction. Due to the table, carrying capacity of the layout plan a poor; Take up large area of the workbench motor; On both ends of the bracket workbench movement in the cantilever position, for a long time lead to deformation of the workbench. The biggest advantage of the scheme is more easily engraving head motion precision guarantee. Due to the design of engraving machine carving range small, economical, machining accuracy is less than 0. 5 mm, the fuselage, light weight, about 20 kg, in order to increase the stability, the design work mesa itself weight, gantry made of duralumin lighten the weight of the moving parts. If the layout b, workbench movement, first of all, under the premise of maximum weight constant in machining, the requirements of the motor drive power, second, and screw pair of bearing, accuracy and life requirements are higher, the cost of rising, and finally, occupy the site of the bigger machine installation. Through the above comparison, fully consider the layout of the basic requirements, the basic factors influencing the layout and design parameters of 3 d CNC engraving machine, under the premise that meet performance using a layout.