cnc machining center process concentration, processing parts are generally more complex, the processing process requires a variety of tools, which requires that the fixture can withstand large cutting forces, but also to meet the positioning accuracy requirements. The task of the fixture is not only so simple as clamping the workpiece, the choice of the fixture of the CNC machining center is very critical.
The high flexibility of the CNC four-axis machining center or the five-axis linkage cnc machining center requires its fixture to be compact and simple than the ordinary machine tool, minimize the auxiliary time, convenient operation and control, labor saving, safety, and to ensure sufficient rigidity, but also flexible. Choosing the right fixture should pay attention to the accuracy of the machining parts, batch size, processing cycle, and processing cost.
In order to reasonably select a good fixture, we must first have a deep understanding of the processing characteristics of the CNC machining center. The tool for CNC milling is called a CNC milling machine or CNC machining center. The lathe that performs CNC turning is called the CNC Turning center.
CNC machining G code can be programmed manually, but usually the machining shop uses CAM software to automatically read CAD files and generate G code program to control CNC machine tools. It is the driving part of the CNC machine tool executive mechanism, including the spindle drive unit, feed unit, spindle motor and feed motor.
He realizes spindle and feed drive by electrical or electro-hydraulic servo system under the control of numerical control device. When several feeds are linked, the processing of positioning, straight line, plane curve and space curve can be completed. Considering various factors, the selection of economic and reasonable fixture can achieve double the result with half the effort, and the role of CNC machining center can be maximized.
