数控冲床加工时零件反面发生划伤现象的分析  

Analysis of Scratch on the Reverse Side of Parts in CNC Punch Machining

作　　者：陈辉华 CHEN Hui-hua(Engineering and Design College,Sanming Medical Technology Vocational College,Sanming365000,China)

机构地区：[1]三明医学科技职业学院工程与设计学院,福建三明365000

出　　处：《武汉职业技术学院学报》2020年第1期113-116,共4页Journal of Wuhan Polytechnic

摘　　要：针对数控冲床板材工件的加工,从模具下模上平面高度不统一、模具刃磨的问题、废料落料的影响、机床本身的精度等几个方面分析了其产生工件反面划伤的原因,总结出了通过编程时注意材料的移动路径、调整毛刷以垫高工件材料送料平面、保证下模高度的统一等方法措施,有效解决数控冲床加工板材工件时的反面划伤问题。Aiming at the processing of sheet metal workpieces of CNC punching machines,the reasons for the scratch on the reverse side of the CNC punching machine sheet were analyzed from four aspects:the uneven height of the plane on the lower mold,the problem of mold grinding,the influence of waste blanking,and the accuracy of the machine itself.The results show that the problem of reverse scratch can be solved by paying attention to the material moving path in programming,adding gasket to the brush of the mounting seat of the lower die to make it higher than the plane of the lower die,using the method of ball-drop die or brush-drop die and ensuring the unity of the height of the lower die,so as to meet the product quality requirements.

关 键 词：数控冲床加工 零件影响 分析方法 

分 类 号：TG386.2[金属学及工艺—金属压力加工]