Gantry machining center is one of the important CNC machine tools in the current industrial development. It can bring greater efficiency to enterprises. The processing of workpieces can complete more processing contents after being clamped at one time, and the processing accuracy is high. For the processing of batches of workpieces with medium processing difficulty, its efficiency is 5-10 times that of ordinary equipment. Especially, it can complete many processing that ordinary equipment can not complete. For the processing of complex shapes It is more suitable for single piece processing with high precision requirements or small and medium batch and multi variety production. Therefore, it is a sign to judge the technical ability and technological level of an enterprise.
CNC gantry machining center refers to the machining center whose spindle axis is perpendicular to the workbench. It is mainly applicable to machining complex parts such as plates, disks, molds and small shells. The machining center can complete milling, boring, drilling, tapping and thread cutting. The spindle is a vertical machining center. Its structural form is mostly a fixed column. The workbench is rectangular and has no indexing rotation function. It is suitable for machining disk, sleeve and plate parts. It generally has three linear motion coordinate axes, and can install a rotary table rotating along the horizontal axis on the workbench to process spiral parts.
The CNC gantry machining center is easy to install cards, easy to operate, easy to observe processing conditions, easy to debug programs, and widely used. However, due to the restrictions of the height of the column and the tool changing device, it is not allowed to process too high parts. When processing the cavity or concave surface, the chips are not easy to be discharged. In serious cases, the tool will be damaged, the machined surface will be damaged, and the smooth processing will be affected.
Features of CNC gantry machining center:
1. The self-contained tool changing device is added on the basis of the CNC boring machine or CNC energy machine, so that the workpiece can be continuously processed in multiple processes on the workpiece surface after one-time clamping, and the processes are highly concentrated.
2. Generally, it is equipped with an automatic indexing rotary table or spindle box, which can automatically turn the angle, so that the workpiece can automatically complete the multi process processing of multiple planes or multiple angular positions after being clamped once.
3. The machining center can automatically change the spindle speed, feed rate of the machine tool, the movement track of the tool relative to the workpiece and other auxiliary functions.
4. If the machining center is equipped with an exchange table, while the workpiece is processed on the workbench at the working position, the loading and unloading of other workpieces on the workbench at the loading and unloading position will not affect the normal processing of workpieces.
The international development of Longmen machining center has been for half a century. Under the accumulation of this long time, its technology has risen to an amazing level. Coupled with its important role in industrial production and manufacturing, it has developed more rapidly. It has provided a large degree of efficiency improvement in machinery, steel, energy, aviation, weapons, ships and other industrial fields, and plays a very important role. However, the development of Longmen machining center in China is relatively late, so there is some gap with the international level, which requires domestic enterprises to constantly innovate and improve it.