便携式刀具磨损测量仪的设计与研究

针对机械设备加工过程中的刀具磨损检测的必要性,分析了目前常用磨损检测方法的不足之处,根据磨损测量仪所需满足的功能需求,提出一种便携式刀具磨损测量仪的设计方案。该测量仪可在自带光源照射下,通过可灵活转动及可锁紧支架实现对固定在机床上的刀具进行直接测量,并通过数据线将获取的磨损图像传输到计算机上,进而利用相关软件对磨损区边缘进行标定、测量和简单计算,即可得出刀具的磨损值。通过实验验证结果表明,该测量仪操作方法简单,测量准确快捷,并能够在较复杂的车间加工环境下进行现场检测。

刀具磨损测量中Halcon软件的标定方法

因为相机镜头都会发生畸变影响测量结果,为了把图像变换到没有畸变的理想状态就需要进行必要的标定,相机标定是视觉测量中的必要环节。本文采用Halcon软件中的标定助手实现对CDD相机的标定,根据标定理论和图像成像原理逐步求出了相机的内外参数,标定结果快速准确,得到了测量刀具磨损所需的各个相机参数。

刀具磨损便携式视觉在位检测技术研究

简要分析了目前常用刀具的磨损测量方法,提出一种便携式在位测量方法。该方法将小型光学镜组直接夹持在手机上,与手机摄像头一起组成便携式视觉检测系统,对安装在机床上的刀具磨损区域进行拍摄取样,然后将图像传输到电脑中,经图像处理后可获得刀具后刀面磨损量。试验表明,该测量方法操作简单,测量精度符合工程要求;可实现刀具磨损的在位检测,为刀具磨损的过程监测提供新途径。

Mathematical Modelling of Cutting Force as the Most Reliable Information Bearer on Cutting Tools Wearing Phenomenon

Being one of their prominent exploitative characteristics, cutting tools durability depends on the character, intensity and the speed of wearing. Identification of tool wearing is of great significance for the purpose of avoiding sooner or later replacement of tools. The parameters of tool wearing can be measured by out-process and in-process-measuring systems. Given the extremely limiting role of the former in modern production lines, development of the latter （the indirect measuring systems） has gained prominence, The basis of indirect measuring systems comprises a set of various signals originating from the units of the system under treatment which stand in certain correlations with the wearing parameters. The paper presents mathematical models of axial force designed on the basis of experimental research in drilling tempered steel by twist drills made of high-speed steel manufactured by powder metallurgy.