Milling process processing Second, the technical performance of the equipment SSCKZ80-5 five-axis turning and milling composite machining center is a five-axis (X, Y, Z, B, Cf) five-link motor milling machining center that integrates various machine functions. Its performance fully reflects the development direction of the turning and milling composite machining center, namely high speed, high efficiency, high precision, high reliability and flexibility, intelligence and modularity. The maximum speed of the spindle system is 2800r/min, which can be used for rough machining of ferrous metals, cutting depth up to 10mm, cutting distance up to 0.7mm/s (when processing 200mm diameter), and high-speed finishing of non-ferrous metals. Extremely high-speed cutting with machining and cutting line speeds exceeding 2000m/min, and mirror finish. The turning precision can reach IT6~IT5, and the roundness can reach 3.5μm; the maximum speed of the milling spindle is 6000r/min and the torque is 270Nm. If the plane is milled with a 125mm milling cutter, the milling depth can reach 6mm and the table feed can reach 1.4mm/s. If the cavity is milled with 8mm milling cutter, the line speed can reach 150m/min. Another option is that the milling spindle has a maximum speed of 4000 r/min and a torque of 350 Nm. In addition, the B-axis and the Cf-axis can be arbitrarily indexed, and the positioning accuracy and the repeating positioning accuracy are 22′′/8′′, respectively, and the minimum feeding unit is 0.001°. In addition to the five-axis five linkage function, it also has Cf axis sub-spindle, online detection system, automatic tool setting device, self-centering center frame, high pressure internal cooling (8MPa) and other modules as optional components. The main technical parameters of the bed body maximum diameter: 900mm over-sliding saddle maximum diameter: 750mm maximum turning diameter: 800mm processing length: 1000/1500/2000/3000/4000/5000/6000mm spindle maximum speed: 2800/2000r/min (can Select) Maximum speed of secondary shaft: 2000r/min Maximum speed of milling spindle: 6000r/min Tool change speed: 2s magazine capacity: 24/32/48... Tool holder: CAPTOC6/HSKA80 IV. Structural features SSCKZ80-5 five-axle car The milling and machining center is designed for the machining of large-size workpieces. The mechanical structure mainly has the following characteristics: 1. The pedestal (bed) is designed with a wavy structure and a sand-filling technique; and the design of each linear axis is adopted. Roller linear guides ensure sufficient rigidity and shock absorption. 2. Optional Ceramic Ball Bearings or oil and gas lubrication to ensure high rigidity and high speed of the entire spindle system. 3. The B-axis clamping adopts two structures: a three-toothed disc and a hydraulic thin-walled sleeve, which can be clamped at 5° or clamped at any angle. 4. The tool changer is hydraulically driven and the wedge self-locking structure is safe and reliable. At present, the level of Shenyang CNC Machine Tool Co., Ltd. developed the first five-axis turning and milling combined machining center SSCKZ63-5 in China in 2000; the SSCKZ80-5 developed in 2001 won the bid for the “Tenth Five-Year†National Science and Technology Key Project, 2003 In the year passed the national acceptance, in 2004 won the first prize of Shenyang Science and Technology Progress Award, in 2005 won the second prize of China Machinery Industry Science Progress. Five units are currently in use. Three contracts have been signed recently, one of which is exported to Canada. The SSCKZ80-5 five-axis turning and milling composite machining center developed by Shenyang CNC Machine Tool Co., Ltd. has independent intellectual property rights and is currently in a leading position in the design, process and manufacturing level. From the five-axis turning and milling center of WFL, DMG and Japan MAZAK exhibited at Beijing International Machine Tool Fair and Hannover EMO2005, the maximum speed of WFL milling spindle reached 9000r/min, and the rapid moving speed of DMG and MAZAK reached 60m/min. The acceleration reaches 1g. Regardless of the external quality and intrinsic quality, there is still a certain gap between our products and high-end products abroad. In the future, the five-axis turning and milling technology will be developed and improved. High-speed, high-efficiency, high-precision, high-flexibility and intelligence, as well as reliability, safety and environmental protection are still the development direction. After the SSCKZ80-5, Shenyang CNC Machine Tool Co., Ltd. is ready to improve and improve in the following aspects: in the aspect of high flexibility, develop more modules, such as: lower turret module, large overhanging boring bar module and its supporting Robot automatic loading and unloading device module and tool magazine module for placing super long and heavy tools; in high speed, solving the problem that the milling spindle speed reaches 9000r/min, the rapid traverse speed reaches 60m/min, the acceleration reaches 1g, and the dynamic response performance of the system is improved. In terms of improving accuracy, temperature measurement software is used to measure and compensate for thermal deformation during processing, and online detection system is used to eliminate loading errors. In terms of intelligence, electronic security software systems, automatic process monitoring mechanisms and Give the speed preference program. 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