论文部分内容阅读
振动头架(以下简称振动头)变形元件的振幅会影响被加工表面的微观形状。而具有曲柄连杆的振动头因为运动链中存在间隙以及头架零件有制造误差等原因,所以改变偏心轮的偏心量也不能保证变形元件相等的振幅,从而使加工表面产生正弦曲线形的凹坑平台或尖顶附加的加工误差。附图所示供车床和卧式镗床上用的振动头可消除上述的缺点。在第一种情况下使与专用电机(安置在机床刀架上)相连的振动头的推杆1作旋转运动和纵向走刀移动,第二种情况是装在机床尾座(或后立柱)内的推杆1是不动的;将往复运动传给变形元件——压头7,它通过滚珠4与盘形靠模3相接触。在两种情况下,杆11都同机床主轴相连。这样的结构型式可取消所需的偏心轮。坯件固定在车床的卡盘内或卧式镗床的工作台上。盘形靠模3固定在推杆1上,它始终与装在本体10内的滚珠4接触。盖5可防止滚珠脱出,其上具有
Vibration headstock (hereinafter referred to as the vibration head) Deformation of the amplitude of the element will affect the machined surface of the microscopic shape. However, because of the existence of gaps in the kinematic chain and manufacturing errors of the headstock parts, the eccentricity of the eccentric wheel can not ensure the equal amplitude of the deformation element, so that the machined surface has a sinusoidal concave shape Pit platform or spire additional processing error. The vibration head shown on the drawings for use on lathes and horizontal boring mills eliminates the above drawbacks. In the first case, the push rod 1 of the vibrating head connected to the special motor (placed on the machine tool holder) makes a rotary movement and a longitudinal pass. In the second case, the push rod 1 is attached to the tailstock (or rear pillar) The push rod 1 is stationary; the reciprocating motion is transmitted to the deformation element - the ram 7, which contacts the disk-shaped master 3 via the balls 4. In both cases, lever 11 is connected to the machine spindle. This type of construction eliminates the required eccentric. Billet fixed in the lathe chuck or horizontal boring machine table. The disk-shaped master 3 is fixed to the push rod 1 and always comes into contact with the balls 4 housed in the body 10. The cover 5 prevents the ball from escaping, having thereon