CNC lathes can complete turning, milling, planing, grinding, boring, drilling, EDM, shearing, bending, laser cutting and other processing methods. The so-called machining is to process the metal blank into the desired shape. It includes two aspects: dimensional accuracy and geometric accuracy. CNC lathes are carried out on ordinary machine tools, and the significance of numerical control lies in numerical control.
When the numerical control system is installed on the machine tool, the machine tool becomes a numerical control machine tool. Of course, the installation of CNC lathes by ordinary machine tools is not just a simple system. For example, from a milling machine to a machining center, the structure of the machine tool has changed. The important thing is to increase the tool library and greatly improve the accuracy. The main functions of the machining center are milling, boring and drilling.
We usually call the numerical control equipment is mainly index control of machine tools and machining centers. Machining center refers to a CNC machine tool, which has a tool magazine and an automatic tool change function, which can stop multi-step processing after the workpiece is clamped once. Machining center is a high mechanical and electrical integration products. After the workpiece is clamped, the CNC system can control the machine tool to automatically select and replace the tool according to different processes, automatically set the tool, automatically change the spindle speed, feed rate, etc., and can continuously complete the drilling, drilling, milling, reaming, tapping and other processes. Therefore, the workpiece clamping time, measurement and machine tool adjustment and other auxiliary processing time is greatly reduced, the processing shape is more complex, the accuracy requirements are higher, and the economic effect of frequently changing parts is good.
According to the relative position of the spindle and the worktable, the machining center is generally divided into horizontal, vertical and universal machining center.
CNC lathe is the core of CNC machine tools, including the hardware and corresponding software used to enter the digital part program, as well as the storage of input information, data conversion, interpolation operations and various control functions.
The driving device is a driving component of the CNC machine tool driver, including a spindle drive unit, a feed unit, a spindle motor and a feed motor. Under the control of the numerical control device, the spindle and feed drive are completed through an electrical or electro-hydraulic servo system. When several feed links, can complete the positioning, straight line, plane curve and space curve processing.
Auxiliary installation indicators control some necessary parts of the lathe to ensure the operation of the CNC lathe, such as cooling, chip removal, smoothing, lighting, monitoring, etc. It includes hydraulic and pneumatic installations, chip removal devices, AC worktables, CNC turntables and CNC indexing heads, as well as tools and monitoring and inspection devices.