金刚石砂轮盘轮廓精度检测及盘面精密修整方法  

Profile Accuracy Detection and Surface Precision Dressing Methods for Diamond Abrasive Disc

作　　者：吴立强 刘汉中 崔志鹏 吴兵 宗文俊[1] Wu Liqiang;Liu Hanzhong;Cui Zhipeng;Wu Bing;Zong Wenjun(Center for Precision Engineering,Harbin Institute of Technology,Harbin Heilongjiang 150001)

机构地区：[1]哈尔滨工业大学机电工程学院精密工程研究所,黑龙江哈尔滨150001

出　　处：《硬质合金》2024年第2期106-112,共7页Cemented Carbides

基　　金：国防基础科研核科学挑战计划项目(TZ2018006-0202-02)。

摘　　要：金刚石砂轮盘的轮廓精度检测及盘面精密修整是金刚石刀具制造领域的关键问题。首先为实现砂轮盘轮廓误差的高精度测量,提出一种基于激光三角测量的在位测量方法,实现了砂轮盘面误差亚微米级精度的高效检测。实验结果表明,该方法可以方便地评估不同精修参数下的修整精度。随后,采用单点金刚石修整法对青铜基金刚石砂轮盘进行了盘面精密修整工艺实验,分别探究了修整进给深度、主轴转速、主轴往复运动频率以及修整压力对盘面修整精度的影响,并优选了修整工艺参数,优选的工艺参数为:修整深度1µm,主轴转速3000r/min,主轴往复频率0.15Hz,接触压力14.7N。最后,不同修整精度的砂轮盘分别被用于研磨金刚石微楔形刀具。实验结果表明,所提出的砂轮盘精度检测和盘面精密修整方法对提高金刚石刀具的制造质量具有重要应用价值。The profile accuracy detection and surface precision dressing of diamond abrasive discs are key issues in the field of diamond tool manufacturing.In order to achieve high-precision measurement of the profile error of the abrasive disc,an on-machine measurement method based on laser triangulation was proposed.The sub-micron accuracy of the surface error of the abrasive disc was effectively detected.The experimental results show that this method can be conveniently used to evaluate the dressing accuracy under different dressing parameters.The precision dressing technology of bronze-sintered diamond abrasive discs was studied by using the single-point diamond dressing method in the experiment.The effects of the dressing depth,spindle speed,spindle reciprocation frequency,and dressing pressure on the surface dressing accuracy of the abrasive disc were investigated,based on which the dressing parameters were optimized.The optimized parameters are:dressing depth 1μm,spindle speed 3000 r/min,reciprocating frequency 0.15 Hz and contact pressure 14.7 N.Abrasive discs with different dressing accuracies were used to grind wedge-shaped diamond micro-tools,respectively.The experimental results indicate that the proposed accuracy detection and surface precision dressing methods of abrasive discs are of significant application value improving the manufacturing accuracy of diamond tools.

关 键 词：金刚石砂轮盘 在位测量 激光三角测量法 修整精度 金刚石刀具 

分 类 号：TG743[金属学及工艺—刀具与模具]