Machine structure, machine tools, also according to the size of the X-axis travel different manufacturing into fixed column and moving column type, machine tool Y-axis slide mounted on the side of the column; Z-axis side hanging on the side of the column, because of its shape is quite similar to the pillow, so called pillow, in the pillow there is a spindle head can be extended, indented, called the W-axis, the shaft diameter of the thinner stroke than the Z-axis stroke is slightly smaller. This structure mainly solves the difficult machining problems in machining, many parts are deeper holes or more interference.
Strictly speaking, the moving column machining center also belongs to a kind of vertical machining center, their structure is similar. The fundamental difference is that the processing form is different. Ordinary vertical machining centers in the processing of the workpiece on the table, relying on the table back and forth, left and right movements to achieve the workpiece XY two-axis direction of the processing, its biggest advantage is that the table moves faster, directly reflected in the improvement of processing efficiency.
The technical characteristics of the moving column machining center:
1, fixed table, table load capacity, table without overhanging and deflection phenomenon, good rigidity and high precision, the machine tool load capacity of about 4000Kg, fixed table makes it easier for the operator to approach, loading and unloading of the workpiece is easier to operate and save energy.
2, X, Y, Z three-axis all moving column high rigidity, high strength structure; three-axis use of heavy-duty linear guideway, suitable for large, long strip-shaped workpiece machining, for shaped workpiece and the center of gravity of the wrong position of the parts can also be successfully realized high-precision machining.
3, the machine tool processing area and the moving area is separated, each moving part is far away from the cutting surface, the processing only need to move the tool moving parts of the quality of the same, which avoids the high inertia of the impact of the movement, thus ensuring the machining accuracy and quality of the workpiece. Motor, screw, rolling guide and positioning switches are not easily affected by chips, cutting fluid and other impacts and failures, the machine tool is characterized by fewer failures and easy maintenance.