Multi-function CNC machining center is used to process all kinds of portrait sculptures, cylindrical sculptures, irregular stigmas, column seats and other stone three-dimensional shaped products, plane relief, bathroom basin, tub and basin plate, kitchen stove plate panel, straight line, curve Finishing, contouring and grinding of flat shaped products such as flower lines, curved edge plates and circular plates. The shape and shape of the product produced can be symmetrical or asymmetric or irregular.
Structurally, such devices typically concentrate the functions of multiple common CNC machining equipment on a single device. Different functions of the device can be achieved by adding options. The CNC machining center with only one cylindrical milling cutter power head generally requires five-dimensional control, that is, the equipment must be able to control the rotation angle of the workpiece. The horizontal (X-axis), vertical (Z-axis), front and rear (Y) of the cylindrical milling cutter The movement and positioning of the axis, as well as the angular oscillation control of the tool axis itself, is the minimum control dimension required to complete the processing of the statue. At present, up to six-dimensional control can be achieved, that is, the device can control the rotational speed and rotational angle positioning of the workpiece, the left and right (X-axis) of the cylindrical milling cutter, the movement and positioning of the vertical (Z-axis) front and rear (Y-axis), and the cutter The gait swing angle of the shaft itself and the forward tilt angle are the six directions of motion. The CNC lathe is mainly used to process the rotary body products, the rotary body carving products and the three-dimensional sculpture products. The speed of the air spindle box is adjusted to adapt to different materials and hardness. The stone, the processing of different diameter products, the positioning of the rotation angle is to meet the processing needs of statues and engraving column products. The non-rotating body products are mainly placed on the workbench, and the machining functions of the CNC milling machine can be completed by matching the tools that can move forward, backward, up and down, and left and right. The swing of the tool axis (the cylindrical milling cutter can be swung from 0 to ±45° or ±90°) is to machine the side of the product. The synchronous movement of the tool in the X, Y and Z directions is the basic movement to complete the profile machining. Processing efficiency to complete the processing of shaped products with more complicated shapes, a sawing power head with a circular saw blade should be added, and the workpiece can be sawed, which is also the necessary tool for processing the twisted column. The power head of the cylindrical milling cutter is mounted on the same carriage, and the three movement directions of X, Y and Z can also be controlled. If the saw blade can be rotated by the vertical axis of its diameter (360° rotation of the saw blade plane), the positioning of the angle of rotation can be controlled, and the saw blade can be cut in all directions. This machining center has six-dimensional control functions and is the basic configuration of a multi-function CNC machining center.
In order to improve the automation and production efficiency of multi-dimensional CNC machining, the equipment is also equipped with a tool magazine with a capacity of 10 to 25 tools, and the tool is automatically changed as needed during the machining process. For the surface shaped products such as the wash basin platen of the bathroom and the kitchen stove top panel, the minimum number of tools required is 9 pieces, that is, 2 diamond cylindrical milling cutters cut the outer contour, and 2 diamond forming tools process the contour edge of the curved shape. 4 curved edge grinding wheels and a panel open grass saw blade. If you need to grind the panel plane, you need to add 2 diamond thickness processing tools and 4 grinding wheels. The user can reasonably select the capacity of the tool magazine according to the actual processed product. For example, using the polishing plate to process the above-mentioned products, at least six tools can be omitted, and the equipment cost is naturally reduced, but the tools necessary for processing are indispensable. For the six-dimensional CNC machining center introduced above, it is recommended to have 12 to 16 tools.
From the aspect of control system, multi-dimensional CNC machining center generally adopts two methods of graphic programming and model scanning to establish the product modeling program. For simple or regular symmetrical articles, the geometric modeling software in CAD can be used to create a two-dimensional geometric model program that requires designing and processing the article, using the selected size and shape parameters to define the dimensions of the geometric model. For stereoscopic engravings with complex shapes such as portrait engraving, the operation of generating geometric models using CAD programming is very complicated and the workload is too large. In order to simplify the operation and improve production efficiency, laser scanning can be used to pre-produce The small solid model is scanned and converted into a CAD graphics program through a numerical control system, thereby improving the efficiency and accuracy of programming. In the CNC machining center with complete functions and control dimension, in addition to the graphic design program installed, it is generally equipped with a laser scanning device.
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