【正文】 二十世紀(jì) 70 年代以來，加工中心得到迅速發(fā)展，出現(xiàn)了可換主軸 箱加工中心，它備有多個可以自動更換的裝有刀具的多軸主軸箱，能對工件同時進(jìn)行多孔加工。第一臺加工中心是 1958 年由美國卡尼 特雷克公司首先研制成功的。s aviation, aerospace, military, scientific research, precision instruments, medical equipment and other industries with high precision, has a decisive influence. The posite machine, and the effective integration of the robot increases productivity In order to improve production efficiency, minimize production costs, the industrial robot with an effective bination of tools to allow the robot in simple and repetitive work, not only can save lots of labor costs at the same time, the robot will not fatigue andno error, and thus the stability of production quality has played a significant role. Machine processing and environmental protection more attention to detail Green machine is the machine tool industry in recent years, a trend, and its emphasis on the machine, the environment, the relationship between people, head to a substantial increase in machine productivity while lowering environmental impact and the operatorhealth hazard. 哈爾濱工業(yè)大學(xué)華德應(yīng)用技術(shù)學(xué)院畢業(yè)論文 32 4. Conclusion Modern machining center is modern technology and the integration of industrial innovation, the country39。 the implementation of ISO / VDI testing standards, prompting manufacturers to improve the processing center : blend of laser processing of plex functions, structural ponents for modular manufacturing cell (FMC) and the flexible production line (FMS), and has the mechanical and electrical, munications integration capabilities. 2. The characteristics of machining centers Process focus Machining Center with Tool and can automatically change tools, multiprocess machining the workpiece, so the workpiece in a fixture, the numerical control system can control the machine by different processes, automatic selection and replacement of tools, automatically change the spindle speed, feedvolume and trajectory of the tool relative to the workpiece, and other auxiliary functions, modern processing center to a greater extent after clamping the workpiece in a multisurface, multifeature, multisite continuous, efficient, highprecision processing, the process is the most prominent feature of machining centers. The adaptive processing object Production of flexible machining centers not only in rapid response to special requirements can rapidly achieve mass production, improve market petitiveness. The high precision CNC machining centers, like with other characteristics of high precision, and processing center focused on the manufacturing processes to avoid a long 哈爾濱工業(yè)大學(xué)華德應(yīng)用技術(shù)學(xué)院畢業(yè)論文 30 process, reducing human interference, so the higher precision, processing quality is more stable. Processing rate The time required for machining parts including motor time and auxiliary time in two centers and automatic tool changer with tool storage device, to focus on a single machine to plete a variety of processes, which can reduce the workpiece clamping, measurement and adjustment of machine time and reduce the flow of semifinished parts, handling and storage time, so thatutilization of cutting tools (cutting time and the starting time of the ratio) higher than the ordinary machine 3 to 4 times more than 80%. The operator to reduce the labor intensity The processing of parts processing center is preprogrammed according to autoplete, the operator in addition to keyboard, loading and unloading parts, the key process in the middle of the operation of measurement and observation tools, the need for heavy repetitive manual operation,labor intensity and tension can be greatly reduced, working conditions have also been greatly improved. High cost Used machining center parts, sharing in each part of the equipment cost is more expensive, but in single, smallbatch production of the case, you can save a lot of other costs, so they can get good value for example, in the process crossed before the save hours of work, in part to the machine after installation can reduce the adjustment, processing and inspection time, reduced direct production addition, the machining center parts do not need handmade model, cam, drill templates and other fixtures, eliminating a lot of technology and equipment, to reduce the hardware due to stable machining center, reduced the rejection rate, a further decline in the cost of productio. Conducive to the modernization of production management Parts with machining center, able to accurately calculate the part of the processing time, and effectively simplify the testing and fixtures, semifinished products of the features are conducive to the production and management are currently many largescale CAD / CAM integrated software production management modules have been developed to 哈爾濱工業(yè)大學(xué)華德應(yīng)用技術(shù)學(xué)院畢業(yè)論文 31 achieve a puteraided production to do basic automation manufacturing enterprises in China is still a very urgent and arduous , both the quantity and processing center utilization is very widespread use of programmable controllers, application of industrial robots is still very , we should be based on the actual situation in China, seeing the trend of the international manufacturing industry base, while a solid job of work. 3. Of the development trend of machining centers Processing center efficiency, high precision, highspeed trend With the rapid development of national economy, industrial automation, manufacturing towards the high, fine, sharp direction, particularly in the automotive, shipbuilding, textiles, electronics, aerospace and the rapid development of the machine39。 that applyin the automotive, motorcycle parts processing large quantities of highspeed machining centers, high efficiency and have the : the widespread adoption of