CNC machining center refers to automated multi-axis installations. It has several independent control channels. The memory stores information about each stage of processing the workpiece, the position of the caliper and cutting tool. The control panel is equipped with a stand-alone PC, which allows for complete troubleshooting. Specialized applications make it easy to download process codes for new parts.
What does the management system include?
The CNC machining center has several functional areas:
- Work area where direct cutting of the workpiece takes place.
- Tool storage store with automated loading process.
- Rotary table for cutting long workpieces.
- Mechanisms for loading and unloading blanks, products.
The technological capabilities of the plants allow for quick readjustment to another standard size, material of parts. Recent developments are available for 5D processing.
Cutting modes are selected by changing the speed of rotation of the
spindle unit and feeding the axes with cutters.
It is advisable to use a CNC machining center in industries where frequent changes in the type of technology are required. For cutting metal, several installations of the same type are built. So, the manufacture of blocks of heads of automobile engines is made, threading on pipes of various diameters. Also, similar goals are pursued when milling wooden and plastic blanks.
Mechanical part
The CNC machining center is based on a frame that can withstand vibration and high loads. Moving parts are mounted on a base with a hard stop. The following mechanisms are used to clamp the workpiece:
- Spindle with grippers. It rotates with the part, or a cutting tool is mounted on it.
- Pneumatic or mechanical clamps on the table. So overall workpieces are fixed: sheets of plywood, plastic.
The tool spindle is designed for specific purposes with a floating part, where the cutters perform oblique movements with respect to the work surface.
Installation Requirements
CNC milling machining center is selected for production tasks. The maximum dimensions of parts are taken into account, which affects the length of the screw pair of coordinate axes. Manufacturers lay in the development of the ability to update the current version of the machines. The buyer plans future investments to purchase a new installation or upgrade an already purchased version.
Inertia of controlled axes is an important parameter for increasing productivity. When optimizing the requirements for the speed of production of parts, an important parameter is laid - the reliability of rotating nodes. Automated impulse lubrication of guides is a necessary element in the design of the machine. The disadvantages of these parameters lead to a decrease in accuracy in the size of the edges, threads and grooves.
What are automated installations capable of?
CNC turning centers are used for machining rotating parts. Types of operations:
- cylindrical movements;
- conical;
- shaped processing;
- drilling holes;
- trimming.
In the turning group, the tool moves along the coordinate system, the part is clamped into the spindle unit. Materials for processing affect the parameter of structural rigidity. Machining centers perform cutting on the following parts:
- plastic;
- metal;
- wooden;
- composite;
- organic glass;
- stone structures.
Additional equipment includes a cooling unit for the cutting zone, chip removal. Specialized clamps are recommended for single-dimensional production of dimensional parts.