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在机械加工中,经常会遇到带有角度槽的工件,当这些工件需要大量生产时,成形车刀也就成为一种必不可少的关键刀具。但是以往设计刀具,由于主后角与副后角选用不协调,当刀具刃磨后刀头截面形状发生改变,必须重新修磨刀头截形,给刃磨工作增加了困难,并降低了刀具使用寿命。为此,研究一种比较理想的协调方法,即当主后角、副偏角确定以后,用计算方法来确定副后角的角度值,从而保证了刀具在整个修磨方向上不改变刀头的截形宽度。
In machining, often encounter the workpiece with the angle groove, when these parts need to mass production, the forming turning knife has become an essential key tool. However, in the past, because of the uncoordinated design of the main posterior horn and the sub-posterior horn, when the cross-sectional shape of the blade changed after the blade sharpening, it was necessary to regrind the blade truncation, which increased the difficulty of the sharpening work and reduced the cutting tool Service life. To this end, the study of an ideal coordination method, that is, when the main posterior horn, declination determination, the calculation method to determine the value of the sub-posterior angle, thus ensuring the tool does not change in the entire grinding direction of the cutter head Truncation width.