Several prominent points to improve the quality of CNC machining workpieces:
1. Reasonable use of turning and milling machining tools for copper and aluminum parts
The smooth knives for processing steel and copper should be strictly distinguished and used, and the allowance of the smooth knives should be reasonable, so that the smoothness of the workpiece and the use time of the knives will be better.
2. Before cnc processing, use the calibration table to check (check and test) whether the tool swings within the allowable tolerance range. The tool head and lock nozzle should be blown clean with an air gun or wiped with a cloth before the tool can be installed. Too much dirt has a certain impact on the accuracy (precision) and quality of the workpiece.
3. When clamping, pay attention to see whether the name and model of the CNC machined workpiece and the program sheet are the same, whether the material size matches, whether the clamping height is high enough, and the number of calipers used.
4. The CNC machining program list must be consistent with the reference angle direction marked by the mold (title: Mother of Industry), and then check whether the 3D picture is correct, especially for the workpiece that has been drilled to transport water, be sure to see the 3D picture clearly Whether it is consistent with the water transport of the workpiece on it, if you have any doubts, you should timely feedback (fǎn kuì) the programmer or find a fitter to check the 2D drawing to see if the 2D and 3D reference angles are consistent. CNC machining in Dongguan greatly reduces the number of tooling, and parts with complex shapes do not require complex tooling. If you want to change the shape and size of the part, you only need to modify the part processing program, which is suitable for new product development and modification.
5. The program list of CNC machining files should be normalized, including model number, name, program name, processing website content, tool size, feed amount, especially the safe length of tool clamping, the reserved allowance for each program, For the smooth knife, it should be clearly marked. The place where the R surface and the plane should be connected should be marked on the program sheet. The operator and controller should increase 0.02~0.05MM during processing before processing, and stop after a few knives to see if If it goes smoothly, you can feel it with your hand to see if it is up. If it is not in order, lower the gong.
6. Before processing, it is necessary to understand the content of the CNC machining program list website. There must be 2D or 3D diagrams on the program list, and they must be marked; X length, Y width, Z height; hexagonal data.
If there is a plane, it should be marked; Z; value, it is convenient for the operator to check (check and test) whether the data is correct after processing, and the public data should be marked if there is a tolerance. CNC numerical control machine tool processing solves the problem of complex, precise, small batch, and multi-variety parts processing. It is a flexible and high-efficiency automatic machine tool, which represents the development direction of modern machine tool control technology and is a typical mechatronics. product. It has been widely used in modern industry, greatly improving the production efficiency of enterprises.
7. The operator of the machine tool processing speed should strictly control it. The F speed and the S spindle speed should be reasonably adjusted to each other. When the F speed is fast, it should be faster than the S spindle, and the feed speed should be adjusted in different areas. CNC machining CNC machining refers to the machining performed with CNC machining tools. CNC index-controlled bed is programmed and controlled by CNC machining language, usually G code. The CNC machining G code language tells the CNC machine tool which Cartesian coordinates to use for the machining tool, and controls the tool feed rate and spindle speed, as well as tool changer, coolant and other functions. After processing, check the quality before getting off the machine, so as to achieve perfect processing at one time.
Post time: Mar-21-2022