4Company dynamics

Classification of machine tools in five-axis linkage machining
Several structures, characteristics and development trends of five-axis CNC machine tools are introduced. Several machining models, programming (C[**]D/C[**]M system) and their advantages and disadvantages are introduced. This paper describes in detail the requirements of CNC system for five-axis CNC machine tool and the number of five-axis linkage in Four-kai Company. It is also a continuous import. The five-axis linkage machining center has the characteristics of high efficiency and high precision, and the workpiece can complete the processing of the pentahedron with one clamping. If equipped with a five-axis linkage high-end numerical control system, it can also fine process the messy space surface, and can appropriately increase the messy high-grade, advanced mold processing and fine, messy parts processing such as auto parts, aircraft structural parts. Until now, it is still restricting the five-axis linkage CNC system and machine tool to the predetermined export, assuming that the user uses a foreign CNC system, it must sign a strict and powerful directional application agreement, and accept the view.

Five-axis linkage machining is developed in the original three-axis machining center, according to ISO regulations, when inserting the movement of CNC machine tools, the right-handed rectangular coordinate system is used; The axis parallel to the main axis is defined as the z axis, and the rotation coordinates around the x, y, and z axes are [**], B, and C, respectively. The movement of the spindle table of each axis can also be completed by the movement of the tool, but the direction is to the direction of the tool relative to the workpiece. Usually the five-axis linkage refers to the linear interpolation motion of any 5 coordinates in x, y, z, [**], B, C. In other words, five axes, x, y, z three axes of movement plus any two axes of rotation. Five axes according to the linkage axis shaking arrangement is different, there are the following categories.

1, workbench cradle type: According to the basis of the traditional three-axis machining center, coupled with the cradle type workbench, the workpiece is shaken to become a 3 + 2 type five-axis linkage machining center. The linkage axis is X/Y/Z / [**] / C, and the B-axis does not rotate in the Y-axis direction.

2, vertical spindle double swing head: there is generally an electric spindle with a loose broach structure in the center of the swing head, so the size of the double swing head itself is not easy to make small, coupled with the needs of the double swing head range of activity, so the processing range of the five-axis linkage machine tool with the double swing head structure should not be too small, but the shorter the better, generally gantry or moving beam gantry. The linkage axis is X/Y/Z / [**] / C, and the B-axis does not rotate in the Y-axis direction.

3, horizontal spindle double swing head: in accordance with the horizontal machining center structure of the double swing head five-axis linkage. The linkage axis is X/Y/Z/B/C, and the X-axis direction [**] axis does not rotate.

4, table shaking type: After the direct drive motor is mature, the structure of five-axis linkage processing has also been greatly improved. The whole table can be double shaken. Now the C-axis direct drive can reach the role of turning. The linkage axis is X/Y/Z/B/C, and the X-axis direction [**] axis does not rotate.

5, the table spindle shaking: according to the evolution of the shaking arrangement, the table and the spindle shaking respectively, constituting a combination of them. The linkage axis is X/Y/Z / [**] / C, and the B-axis does not rotate in the Y-axis direction.