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建筑机械常用到各种螺杆,旋风切削是批量加工各种螺杆的有效方法。这种加工方法的关键之一是旋刀顶刃工作前后角的控制。一、问题的提出旋风切削螺纹时,工件与旋刀同时旋转,旋刀在工件上的切削轨迹已不是圆形,旋刀顶刃工作前后角发生周期性变化:顺切时,旋刀切入工件时的前角最大,后角最小;切离工件时的前角最小,后角最大。逆切时,旋刀角度的变化与顺切时相反。这种变化会影响加工质量和刀具寿命吗?此外,旋刀需求量较大,制作时较难保
Construction machinery is commonly used for various types of screws, and cyclone cutting is an effective method for batch processing of various screws. One of the keys to this processing method is the control of the front and rear corners of the rotary blade’s top edge. 1. When the problem is put forward, the workpiece and the rotary knife rotate at the same time. The cutting trajectory of the rotary knife on the workpiece is not circular, and the working angle of the top edge of the rotary knife periodically changes: when the cutting is smooth, the rotary knife cuts into the workpiece. The anteroposterior angle is the largest, and the posterior horn is the smallest; the anteroposterior angle is the smallest and the posterior horn is the largest. In reverse cutting, the angle of the rotary blade changes in the opposite direction. Does this change affect the quality of processing and tool life? In addition, the need for rotary knives is large, making it difficult to maintain