- 上一篇：塑料回收英文文献和中文翻译
- 下一篇：办公室空调分配系统英文文献和中文翻译
vw = vbmax cosγ = 2πfAb cosγ
vfa = vbmax sin γ = 2_fAb sinγ
(1) to give the tilt angle gamma ultrasonic vibration frequency f workpiece diameter, workpiece speed NW DW (= VW / DW), and feed rate can be expected-VFA. (1) the actual bending amplitude AB has been known as track face with. Therefore, the value of AB with a laser Doppler vibrometer systems to measure (LV-1610 Ono measured), and figs. 3 shows the conditions obtained by applying a voltage amplitude of VP-P, and the relationship between bending vibration amplitude AB-F = 46.7 kHz, ψ = 35 °, it can be seen, an increase of 0.055 mm AB value monotonic M 0.143 VP-P increased, from 30 V to 110 V. These data on behalf of AB. (1) the generated prediction shown in Figure NW and VFA values. 4 and 5. Obviously, the workpiece speed NW, VFA prediction feedrate increases monotonically with the applied voltage increases, but the influence of the inclination angle of the crawler not appear in the speed of rotation of the workpiece.
In order to confirm the prediction, the actual speed by carrying out the measurement of watering and feeding speed workpiece the VFA workpiece movement control tests. In the test, the needle cylinder (diameter 4X length 8 mm) long workpiece K-grade cement is used as the cemented carbide rod (TH10). During the test, the high-speed digital camera records the motion of the workpiece (VW-6000 by KEYENCE cooperation. Co., Ltd.), NW speed recording from the workpiece, the feed rate the VFA to use the animated image processing software motion video (video editing KEYENCE cooperation. Co., Ltd.). The application of the AC voltage is the same in the bending vibration amplitude measurements, and other conditions are listed in Table 1. The result is to draw the same number of figs. As predicted by 4 and 5 were compared.
Obviously, from Figure 4 (a) and 5 (a), the net weight of the actual value of the nw prediction NW increase the actual speed 73 rpm 207 rpm, the applied voltage VP-P increased from 30 V to 110 V tilt angle can be seen on the the NW actual value. On the other hand, as shown in FIG. 4 (b) and 5 (B) the actual feedrate VFA change monotone applied voltage VP-P and the tilt angle increases. However, some differences between the discovery the VFA and prediction of the actual value. This phenomenon can be noted that in the lead area resistance grinding wheel slows down the actual workpiece feed rate. The results of the test mentioned earlier workpiece motion control means, adjustable workpiece speed NW its feed changes by changing the applied voltage of VP-P is applied to both the voltage can be adjusted rate VFA, VP-P, and the inclination angle, which means that the workpiece movement can be controlled the ultrasonic elliptical motion track, make full use of the system performance, reduce production costs, improve the machine's cost-effective.
中文译文数控系统在平面磨床上应用现状与发展趋势
现代工业生产中，中、小批量零件的生产占产品数量的比例越来越高，零件的复杂性和精度要求迅速提高，传统的普通机床已经越来越难以适应现代化生产的要求，而数控机床具有高精度、高效率、一机多用，可以完成复杂型面加工过程的特点，特别是计算机技术的迅猛发展并广泛应用于数控系统中，数控装置的主要功能几乎全有软件来实现，硬件几乎能通用，从而使其更具加工柔性，功能更加强大。论文网
制造业的竞争已从早期降低劳动力成本、产品成本，提高企业整体效率和质量的竞争，发展到全面满足顾客要求，积极开发新产品的竞争，将面临知识—技术—产品的更新周期越来越短，产品批量越来越小，而对质量、性能的要求更高，同时社会对环境保护、绿色制造的意识不断加强。因此敏捷先进的制造技术将成为企业赢得竞争和生存、发展的主要手段。计算机信息技术和制造自动化技术的结合越来越紧密，作为自动化柔性生产重要基础的数控机床在生产机床中所占比例将越来越多。