Gantry machining center machine tool is multi-process processing equipment, which can complete all processes such as trimming, drilling, milling, surface milling, marking, and detection on one machine. It is widely used in aviation and automobile, precision mold, and parts processing industries, providing reliable mechanical systems and a variety of selective and easy-to-operate software to realize the dream of high precision.

A gantry machining center is a kind of CNC machine tool whose spindle runs vertically downward. CNC gantry machining center usually has a large workbench and working range, which is very suitable for the production of large workpieces such as auto parts.

The main major components of the gantry machining center machine tool are the base, workbench, column, beam, slider, and ram, which are made of high-quality resin sand and high-strength high-quality cast iron. After a complete heat treatment process, the residual stress is eliminated, and sufficient reinforcing plates are arranged to ensure that the machine has sufficient strength, stiffness, and high stability. The following will introduce the relevant knowledge and various types of features of the gantry machining center machine tool workbench.

Gantry machining center machine tool workbench

The worktable of the gantry machining center is rectangular. Large castings such as workbench, bed, column, and beam are made of cast iron or weldments. The inner cavity of the casting is a honeycomb composite arrangement structure. The design is advanced. After aging and secondary tempering, the residual internal stress is eliminated and the material is stabilized. Ensure the stability of CNC machining parts accuracy and machine tool life.

The gantry machining center machine tool is designed to manufacture finished parts in an accurate and fast manner. It is a gantry machine with a movable bridge and a double vertical mast suspended on a parallel guide rail above the working area or workbench. The machining head moves smoothly along the defined tool path on five or six axes to produce a complete part.

The layout characteristics and movement mode of the gantry machining center machine tool are: the x-axis guide rail is installed on the machine body of the gantry machining center machine tool, and the gantry machining center machine tool workbench is fixed on its body. The gantry above the workbench is connected with a movable span. The gantry also includes a gantry, which is movably clamped on the x-axis guide rail. The y-axis guide rail of the gantry machining center machine tool and the column are clamped on the y-axis guide rail. The z-axis guide rail is installed on the column, and the milling head can move along the column guide rail. In the processing process, the workbench and workpiece do not move but are moved by the gantry. It has the characteristics of good rigidity, high power, convenient operation, simple layout, large bearing capacity, large gantry travel, easy to process special or heavy parts, etc.

Gantry machining center workbench type characteristics

Gantry machining lathe is a gantry frame type machining center with fixed beams and movable worktables. Based on the strong rigidity and good stability of the traditional gantry, it absorbs advanced design concepts. The gantry machining center has a fixed beam workbench, a rotating workbench, a mobile beam type (beam moving up and down, a workbench moving back and forth), and a mobile column type (fixed workbench, mobile gantry), and other types. Their processing characteristics, capabilities, and processing purposes of target products are not the same.

CNC rotary table of gantry machining center: CNC rotary table is one of the important functional accessories of the gantry machining center. It can be used in conjunction with the main machine of the gantry machining center to perform angle milling, head hole, and multi-facet machining on the workpiece installed on the NC rotating workbench. Using the continuous arbitrary indexing function of the rotating workbench, it can continuously process cylindrical surfaces and end faces, expand the processing range of the main body, and adopt the rotating workbench, Therefore, the guide rail of the main axle box is only set to half the maximum width of the rotating workbench to complete the overall operation of the rotating workbench.

The length of the worktable of the fixed beam gantry is generally equivalent to the x-axis stroke, which can clamp and process large parts. However, due to the large length of the worktable, its weight, and the different length of the workpiece, the machine tool itself needs additional power for the mobile worktable when processing small parts, and the cost is easy to increase.

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