In aerospace manufacturing enterprises, the application of new materials and advanced manufacturing technology are important foundations of aerodynamic technology, but in the processing of parts, a large amount of time is consumed in the time of handling and transferring workpieces, installation and commissioning, etc. Reduce these time as much as possible, improve processing efficiency and processing quality, and need one equipment to complete as many processing as possible, that is, reduce the transfer time, and also meet some shape tolerances that are not guaranteed by the benchmark conversion, so the composite processing is used. The technology can meet the processing mode of a single unit and small batch of aviation units. The following is a discussion of some problems that occur when the unit uses the turning and milling machine tool .
Figure 1, S189 machine tool
Figure 2, S191 machine diagram III, S191 schematic
Figure 4, S192 machine diagram 5, S192 schematic
This unit purchased the S189 twin-spindle double-turret six-axis turning and milling compound center (shown in Figure 1) and S191 five-axis linkage milling and turning compound center (shown in Figures 2 and 3) and S192. The horizontal milling and turning compound center (as shown in Figures 4 and 5), in the process of using three devices, since the equipment has never been used, the turret, spindle and programming method of the turning and milling machine tool are not very Understand, for milling and turning machine tools , it is mainly to eliminate the secondary clamping error to improve the accuracy of the parts and improve the efficiency of the parts processing (multiple parts can be processed at the same time or multiple turrets can simultaneously process one part) In the arrangement of the process plan, the whole processing plan is more suitable for the processing of such equipment, instead of the superposition of milling and car; the turning and milling machine itself is a very complicated production line, so if the manual programming is used, the machine tool utilization will be greatly reduced. rate, when the device that you just purchased, has been using a manual programming a way that the machine utilization is very low, due to several turrets while moving, people will be difficult to judge Will Collider, or even stop, the aid must be considered professional milling complex programming and simulation software to achieve the fastest processing requirements, milling complex machine is not just the combination of machining centers and CNC lathes together, it has a lot of complexity And the special features that are useful (we become inner loops), and these functions are the value of this type of machine , so using these functions plays a very important role in the performance of the machine . However, these functions are not fully mastered by humans, and the safety of manual operation cannot be guaranteed. Therefore, it is necessary to rely on professional turning and milling composite software to be able to exert its effectiveness. At present, such software is important to have TopSolid, GIBBS, edgecam and so on. In today's market, the requirements for individualization are increasingly strong. Aerospace products tend to be small-scale or even single-piece production. Therefore, the use of complex machine tools requires a reliable technical system and platform. Through full-process computer control, high-quality, high-efficiency products are completed. The processing, manual only loading and unloading parts, and finally through the deburring process, can be submitted to the warehouse. The compound processing machine tool highlights the processing steps of the workpiece, and the multi-step compound processing is realized in one clamping. The process concentration is beneficial to ensure the mutual positional accuracy between the processing surfaces, but the price of the composite processing equipment is relatively expensive. In theory, the milling and milling compound is combined. Processing equipment can effectively improve product quality and production efficiency, but in actual production applications, in order to give full play to the role of composite machine tools , it should also strengthen the basic training of relevant knowledge of operational technicians, form productivity, and quickly respond to product development.
About the author: Zhao Xinglong (1982-), male, engineer, mainly engaged in the research of turning and grinding of gears and difficult-to-machine materials
Name of the unit: Xi'an Aviation Power Control Company
Activity background:
In recent years, China's equipment manufacturing industry has developed rapidly, and the development of equipment manufacturing industry is inseparable from machine tools. The so-called sharpening of the knife does not miss the firewood, excellent tools can not only improve production efficiency, but also save production costs.
Metal processing online special planning " machine tool use evaluation and experience" award-winning essay activities. Talk about the machine tool you or your company is currently using. In the course of using, what are the advantages and those shortcomings? Talk about the feelings and feelings of your use.
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