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在普通车床上加工细长轴类零件,如果没有合适的工具设备,就难以保证零件的光洁度和几何精度,且加工效率不高。为此,我厂张国良等同志设计、制造了细长轴压光刀架,经长期试验和使用,证明效果良好。一、压光刀架的结构如图1所示,在刀架本体内装有三个镶硬质合金片的支承块,以及一把高速钢车刀。其设计原理是利用车削过程中产生的主切削力的反作用力来压光零件表面。在一般切削过程中,反作用力占总切削力的90％左右,细长零件在切削过程中由于反作用力,促使零件向上抬起而紧固在刀架本体的两个支承块上,则可迫使零件向下压。随着零件的旋转运动和压光刀架的直线运动,形
In the ordinary lathe processing slender shaft parts, without the right tools and equipment, it is difficult to ensure the parts finish and geometric accuracy, and the processing efficiency is not high. To this end, I plant Zhang Guoliang and other comrades design and manufacture of slender shaft pressure knife holder, the long-term test and use, to prove effective. First, the structure of the calendar holder As shown in Figure 1, the body is equipped with three inserts inlaid carbide bearing pieces, as well as a high-speed steel turning tool. Its design principle is the use of the turning force generated during the cutting force of the reaction to calender parts surface. In the general cutting process, the reaction force of the total cutting force of about 90% of the elongated parts in the cutting process due to the reaction force, to lift the parts up and fastened on the carriage body of the two support blocks, you can force Press down on the part. With the rotation of the parts and linear motion of the platen, the shape