1、 Advantages of CNC Machining Technology
Compared with ordinary machining technology, CNC machining technology has great advantages, and with the development of technology, the advantages are becoming more and more obvious. Especially in motion control, CNC machining has made progress in the following two aspects:
·Trajectory control, the most prominent feature of CNC technology is that it can drive multi axis linkage with the help of digital control, control tool path, and effectively realize complex and cumbersome surface machining. At the same time, because the tool path is realized by programming, it has stronger strain ability.
·Positioning control, the unique closed-loop compensation function and programmability (i.e. micro feed) of CNC machine tools determine that CNC machine tools can obtain accurate positioning, effectively reduce random errors and improve machining accuracy. From the perspective of parameter control, CNC machining can obtain a wide range of stable process parameters. Digital control can accurately determine the tool feed and spindle speed, so as to improve the machining quality.
2、 Application of numerical control machining technology in feeder production
1. Feed horn
With the expansion of radar index range and the improvement of data measurement accuracy, the structural design of feed horn also becomes more precise with the increase of volume, which brings higher requirements for production and processing. Among them, the requirement for CNC processing technology is to strengthen the control of the program.
2. Circular moment transformation
Circular moment transformation is a typical function key in feeder system, which can realize the smooth transition of electromagnetic wave from circular aperture to square aperture. This kind of parts choose electroforming scheme in traditional processing technology. With the use of numerical control processing technology, the electroformed aluminum core with circular moment transformation can be processed by the numerical control lathe with milling power head. One clamping can complete all the processing of square and circular transformation, effectively reducing the number of processes and improving efficiency.
3. Aluminum matrix composite material for phase shifter and duplex
A new microwave material, aluminum based PTFE copper clad laminate, will be used in the manufacture of modern radar. When using this material to make radar products, we need to have the following requirements for processing: the edge of copper foil should not have flanging, especially the orifice on the line should be flat and not disconnected from the edge of the line, and the surface of the workpiece should not have scratches and pits.