1. Introduction of Gantry Machining Center
Gantry machining center refers to a machining center in which the axis of the Z axis of the main shaft is perpendicular to the worktable. The overall structure is a large machining center machine with a double column and a top beam forming a portal structure frame, and there is a beam in the middle of the double column. Especially suitable for machining large workpieces and workpieces with complex shapes.
2. Classification of gantry machining centers
There are fixed beam type (beam fixed, worktable moving/rotating), moving beam type (beam moving up and down, worktable moving back and forth), moving column type (worktable fixed, gantry moving), crane type (worktable fixed, cross beam) Mobile) There are also multiple types of gantry machining centers in the above composite form. The processing characteristics, capabilities, and product processing uses are not exactly the same.
3. Structural characteristics of gantry machining center
(1) Workbench
The table of the gantry machining center is basically rectangular. The large castings such as the table, bed, column, beam and ram are made of cast iron or welded parts. The inner cavity of the casting is a honeycomb composite arrangement structure with advanced design, all of which have been treated by aging and secondary tempering to eliminate residual internal stress and stabilize the material. , to ensure the stability of workpiece machining accuracy and machine tool life.
(2) Gantry
The gantry consists of a beam and two columns. It can be divided into three types: beam fixed, beam locked by positioning block segmented lifting and beam free lifting.
(3) Ram
The ram can be divided into two types: open type and closed type. The ram of the open structure is clamped on the headstock by the pressure plate, and the cross-sectional area of the ram is large; the ram of the closed structure is clamped in the headstock, and the cross-sectional area of the ram is small.
(4) Tool magazine
There are three basic types of tool magazines: turret type, drum type and chain length type.
(5) Attachment header library
The machining of large and complex parts often requires many attachment heads. The attachment head is specially designed according to the processing requirements of the workpiece, and is generally divided into right-angle head, extension head, special angle head and universal head.
(6) CNC system
There are many CNC system suppliers, and there are different choices of system brands and models according to different needs.
(7) Accuracy
The accuracy of the machine tool refers to the original accuracy of the machine tool under the condition of no external load. Accuracy is usually expressed by its opposite - the deviation from the ideal state (abbreviated as error), and the smaller the error, the higher the accuracy.
Fagna Technology Co., Ltd. is a professional supplier specializing in the production, testing and sales of high-quality, high-precision CNC machine tools. Gantry machining center is one of our products. Please feel free to visit the website or contact us.
