外文翻译--鞋楦扫描机的控制系统的开发(编辑修改稿)

外文翻译--鞋楦扫描机的控制系统的开发(编辑修改稿)内容摘要：

s. A mix of different properties, as well as economic, as well as their choice of Shenzhen Company, the mine DMC3000 series Motion Control Card. Motion Control of the system is based on the PCI bus card, highperformance motion control card can control up to 4axis stepper or servo motor. This series of plugandplay with a maximum pulse frequency of 4 MHz, the Scurve damping function, encoder feedback, and advanced features such as variable speed at any time. Motion Control Card of the axis of each of the two signal outputs can be used to PUL and DIR output pulse and direction signal, which can be output from the two procedures are set to pulsepulse + (doublepulse) + pulse mode or direction mode ( single pulse). The system uses pulse + direction form, and set the pulse for the differential output, in the differential output mode, a signal can be divided into a different bad signal. The use of differential output can be an effective way to reduce transmission interference, and improve reliability. Xaxis and the Zaxis servo motor drive from the Motion Control Card to receive the signal pulse and direction. The Motion Control Card may simultaneously control fouraxis, the axis of each have three pairs of differential phase A, B and Z of the input signal, EA and EB signal used for position, the signal for the origin EZ index signal. Each axis has a switching signal origin through the mechanical origin of the signal input shaft to find the original point of origin can be set through the software switchmode. Each axis has two locations spacing signal EL + (positive spacing) and EL(reverse Limit), the limit set by switchmode software. In this system, the Xaxis and the Zaxis servo motor feedback encoder pulse signal have access Motion Control Card. Since the initial movement of each axis there is a start bit, it was necessary to signal to the original point, the search software to determine the origin signal the start bit. X axis rotation direction, do not limit pros and cons, using only a signal origin. Apart from the Zaxis origin signal, but also limit access plus or minus two position signals from the two limit protection. I universal digital input and output can also be used to access some of the switch signal. The single campaign, according to campaigndistance, the motion control card, the mode of operation and continuous operation mode. According to the velocity, the trapezoidal motion control card that runs at Scurve pattern and operation mode. Scurve model used to run a shaft that runs at the Scurve designated pulse number of Scurve model can be run effectively and to improve acceleration and deceleration eliminate the vibration, so that movement is very smooth. Figure 4 shows the following: Figure 4 Scurve velocity and acceleration Since S curve in a trapezoidal mode runs at the merits of this system are used in the operation mode Scurve. Before the start of the scan, in order to measure the floor straight shoe last longer need to shoe last turn certain angle, and then use fixedlength operation mode. In the scanning process, the Zaxis and the Xaxis but at the same time the implementation of an independent movement, and movement is continuous. This twoaxis at the same time guarantee a certain percentage of the speed sports. Actual circumstances, the Motion Control Card of the system can meet the requirements of shoe last of the threedimensional data scanning, and thus gained threedimensional data files shoe last. 4． 1 运动控制卡的选择及控制 在扫描系统中，运动控制卡是整个系统的核心 ，因此选择合适的运动控制卡是很重要的。 在扫描过程中，运动控制卡需要控制 Z轴和 X 轴的伺服电机，运动控制卡不仅要发送脉冲给电机驱动器，同时接受伺服电机编码器反馈的脉冲数。 运动控制卡还接受光栅尺反馈信号。 由于是采集鞋楦三维的数据，采样点越密集，加工出来的产品越光滑。 在本系统中，设定鞋楦转一圈需要采样几百个点，因此对运动控制卡的驱动输出脉冲要求比较高，对编码器输。