机械臂加工花岗岩的力和工具磨损特性

采用机械臂对花岗岩进行加工试验,测量磨削力,观察工具磨损,分析磨削力随时间和位置的变化及工具磨损特性.结果表明:随着加工的进行,磨削力随之增加,z方向的磨削力明显大于x,y方向的磨削力;磨削工具观察到镀层剥落、磨粒磨平、微破碎和宏观破碎几种失效形式;同一节块上的切入部位磨损严重,出露高度降低速率最快,切出部位最慢;工具的磨损与磨削力之间相互影响,随着工具失效增加,磨削力随之增加.

Forces and Tool Wear Characteristics in Granite Grinding by Robotic

The grinding forces and tool wear from granite grinding using a robotic were measured. The characteristics of grinding forces and tool wear in different machining stages and different machining locations were investigated. The experimental results show that the grinding forces increase in the process of machining, the grinding force in z direction is significantly greater than those in x and y directions. The tool wear characteristics include flattened, micro-fractured, macro-fractured abrasives and coating peeling. There is a more seriously wear and larger decrease rate of abrasive exposed heights in the cut-into parts, and in reverse in the cut-off parts. Tool wear and the grinding force are influenced each other. The grinding forces increase with the increase of tool wear.