The Main Features of the Four-axis Machining Center of CNC Machine Tools
Oct 22, 2020
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(1) Adaptable.
Suitable for processing single-piece or small-volume complex work pieces. CNC machine tools can process many ordinary machine tools difficult to process, or simply can not be processed complex surface parts, high-speed CNC engraving milling machine column such as propellers. This is due to the multi-axis linkage function of CNC machine tools, the tool can be tracked according to the spatial curve. Therefore, CNC machine tools are first used in aerospace and other fields, and are also widely used in the processing of molds, propellers and turbine blades on complex surfaces.
When changing the machining parts on the CNC machine tool, only the corresponding machining procedures need to be changed to achieve the processing of the new parts, without the need to manufacture or replace many tools and fixtures, there is no need to re-adjust the machine tools and so on. Therefore, CNC machine tools are particularly suitable for single-piece, small-volume and trial production of new products parts processing.
(2) High processing accuracy.
Product quality is stable. The transmission parts of the high-speed drilling machine, especially the ball wire rod, have high manufacturing accuracy, eliminate the transmission gap when assembling, and adopt measures to improve stiffness, so the transmission accuracy is very high. CNC machine guides use rolling rails or paste frictional resistance to eliminate low-speed crawling. In the closed-loop, semi-closed-loop servo system, equipped with high-precision position detection elements, and at any time the position error feedback to the computer, so that it can be timely error correction, so that CNC machine tools get a high processing accuracy.
In addition, the processing process of CNC machine tools is completely automatic, which is to eliminate the human error caused by the operator, so that the same batch of parts of the size consistency is good, processing quality is very stable.
(3) High productivity.
The time required for part processing includes maneuvering time and auxiliary time. CNC machine tools can effectively reduce these two parts of the time. The speed range of CNC machine spindle speed and tool injinding speed is wider than that of ordinary machine tools, and the rigidity of machine tools is good. Fast movement and stop using acceleration and deceleration measures, so as to improve the speed of air travel movement, but also to ensure positioning accuracy, effectively reduce the maneuvering time.
Also because of the high precision of CNC machine tool positioning, the number of shutdown detections is reduced, and the processing preparation time is shortened by the use of universal tool fixtures, thus reducing the auxiliary time. According to statistics, the productivity of CNC machine tools is 2 to 3 times higher than that of ordinary machine tools, and the productivity of CNC machine tools can be increased by more than ten times or dozens of times when processing some complex parts.
Reduce labor intensity and improve labor conditions. CNC machine tools are mainly automatic processing, can automatically change knives, open concern cutting fluid, automatic speed change, etc. , most of its operation does not need to be completed manually, thus improving labor conditions. Due to the reduction of operational errors, the scrap rate and the secondary rate are also reduced.
