| 1. | Influence of micro - advancement on the accuracy of machinery processing
分析微量进给对机械加工精度的影响 |
| 2. | The microfeed technique is one of important methods of improving the machining accuracy of optical parts
微量进给技术是提高光学零件加工精度的重要途径之一。 |
| 3. | In this paper , according to the technological requirement of machining optical parts and the principle of locus shaping technique , the author devised a special set of feed control system
本文根据光学零件加工的工艺要求和轨迹成形法加工的原理，设计出一套专门的微量进给控制系统。 |
| 4. | Combined with the advanced techniques of the sensor ~ computer and microfeed , to carry out the research on the microfeed worktable used to machine optical parts has important theoretical value and practical significance
结合先进的传感器技术、计算机技术及微位移技术，开展用于光学零件加工的微量进给工作台的研究具有重要的理论价值和实际意义。 |
| 5. | To realize the large stroke microfeed in this feed system , the microfeed system of closed - loop feedback control was adopted . the system is controlled by the 89c5 1 singlechip computer and combinely driven by the stepmotor and piezoelectric ceramic , the worktable ? position is measured by the raster position sensor
为满足进给系统能实现大行程的微量进给的要求，系统采用了由89c51单片机控制，由步进电机和压电陶瓷复合驱动，并通过光栅位移传感器进行位移检测，从而形成闭环反馈控制的微量进给方式。 |
| 6. | This paper has introduced the design of the instruction mechanical system , servo control system and image collection and processing system of the automatic tester for dial gauges in detail . it is illuminated that the step motor with the card of i / o and the step motor actuator is driven by computer . the step motor drives the surveying rod of automatic tester for dial gauges through the transfer machinery and realizes micro - displacement of the surveying rod
本文详细介绍了指示表自动检定仪的机械系统、伺服控制系统、图像采集与处理系统的设计，阐明系统是在计算机的控制下，由计算拟通过i o卡、步进电机驱动器，驱动步进电动机，由步进电动机通过传动机构推动被检指示表的测杆移动，从而实现测杆的微量进给。 |
| 7. | Simultaneously with the micro - displacement started the processe of the grating sensor measuring the displacement and image collection of the system . the grating sensor ( length gauge ) measures the displacement of the dial gauge with surveying rod . it is delivered to the computer with a block k220 in real time and the dial image by ccd camcorder is shown on the computer screen with the image collection card in real time
在实现微量进给的同时，启动系统的光栅位移测量过程和图像采集过程，光栅传感器(长度计)测得指示表测杆的位移量，由计数卡ik220实时传送给计算机，由ccd摄像头摄取的表盘图像经图像采集卡在计算机屏幕上得以实时显示，最后通过对指示表指针位移计算处理与光栅传感器测量的位移量进行比较，得到指示表受检点的示值误差。 |
