tool n. 1.工具,用具,器具;【机械工程】刀具;工具母机 (=machine tool)。 2.爪牙,傀儡,走狗;〔美俚〕扒手。 3.【装钉】压印机。 4.〔pl.〕〔美俚〕刀叉(等)。 Books are the tools of a scholar. 书籍是学者的工具。 tool steel 工具钢。 a broad tool (石工的)宽刃凿。 an edge(d) tool 刀。 literary tools 文具。 a poor tool不行的工人。 throw down one's tools=down tools 罢工。 vt.,vi. 1.用工具加工,用工具制造,用凿刀修整(石头);【装订】压印。 2.〔英口〕开车;乘车;〔美俚〕闲逛,闲荡。 Let me tool you down to the station. 我用车送你上车站吧。 blind tooling 【印刷】(硬封面上的)本色压印。
It advances that the non - lapping envelope region is a major fact of generating roundness errors and inquires into the effects of ball roundness with non - lapping envelope region , preliminary pressure error and lap tool wear 根据四研具体对球面研磨的包络原理,提出了未包络研磨区是产生残存圆度误差的主要因素,并探讨了未包络研磨区、四研具初始压力误差、研具磨损不均匀性产生的原因和对研磨残存圆度误差的影响及解决措施。
By using peak - band algorithm , the aim area ( b area ) is segmented from the wear area image . aiming at the edge noise of image , mathematical morphology theory is applied to integrate edge . test results show that the segmentation algorithm is effective in identifying tool wear degree 针对边界中存在的分割噪声使用圆形形态算子对边界进行完整化,最终获得了完整的刀具磨损区图像,为实现通过刀具磨损区大小来评判刀具磨损程度的方法奠定基础。
On the basis of the theory of fractal geometry , the fractal dimension characters of ae signal at different tool wear states were analyzed , an algorithm was provided to decide the scale range which is necessary to calculate the dimension of non - fully - fractal form . the experiments showed that the fractal dimension of ae signal is slightly effected by the changes of cutting parameters ; the variance of the fractal dimensions , which reflects the geometric characters of ae signals , has the same tendency as that of the flank wear , the monitoring system , which takes the fractal dimension of the ae signal as the feature , can identify the different tool wear states more correctly under different cutting conditions 以分形几何理论为基础,对刀具不同磨损阶段声发射信号的分形特征进行分析.提出了计算非完全分形体信号波形的关联维数时尺度范围的确定方法,分析了声发射信号在刀具磨损过程中分形维数的变化特性.刀具磨损切削实验数据表明,声发射信号的分形维数受切削参数变化影响较小;分形维数反映了声发射信号的几何特征,其大小能较好地反映刀具的不同磨损状态.实验结果表明,该方法能正确地实时在线监测刀具的不同磨损状态
Tool wear image characteristic was studied at tool wear inspecting aspect and put forward " 十 window " automatic edge detection algorithm and resolved the problem of tool wear image edge extraction . the algorithms and programs calculating area , perimeter , width and length for tool wear image were developed for tool wear image . the better results were gained by experiments and improved edge orientation precision and geometry measure precision 在刀具磨损检测技术方面,研究了刀具磨损的图像特点,提出了“十字窗”自动边缘检测算法,解决了刀具磨损图像边缘提取问题,开发了刀具磨损的面积、周长、宽度、长度的算法,开发了程序,经检验具有较好的检测效果,提高了边缘定位精度和几何尺寸的计算精度。
The fourth chapter introduces the theory of fractional brown movement ( fbm ) . the image texture of turning workpiece is analyzed using fbm model . after abstracting the texture character , the cutting tool wear status can be determined according to fractal dimension and average slope of the fitting curve of the logarithm power spectrum 第四章采用分数布朗运动( fbm )的基本理论,对切削工件表面纹理的图像进行分析,提取纹理特征参数,根据分形维数和图像上对数功率谱的拟合曲线的平均斜率来判断刀具的磨损状态。
* the sixth chapter presents a tool wear area image segmentation algorithm based on markov random field m odel . the refresh formula of relaxation labeling is deduced . with the algorithm , the segmentation result composed of wear area , background area and tool body area is obtained according to the map ( maximum a posterior ) criterion 第六章以马尔可夫随机场理论为基础,提出刀具磨损区域分割算法,推导了松弛迭代更新公式,并用该方法对图像分割问题进行求解,获得了map准则下将刀具图像的分割结果。
In this paper firstly the image analysis system making use of chip shape recognition and tool wear inspecting were established , it was made of industry computer , image collecting card of qp300 , pickup camera of wv - bp330ccd and microscope . this affords foundation for the image analysis application to cutting process 本文首先建立了以工控机作为系统的主机,由qp300图象采集卡、 wv - bp330ccd摄象机和体式显微镜组成的可用于切屑形态识别及刀具磨损、破损检测的图像处理系统,为图像分析技术在切削加工中应用研究提供了基础。
Tool wear describes the gradual failure of cutting tools due to regular operation. It is a term often associated with tipped tools, tool bits, or drill bits that are used with machine tools.