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在机械制造工艺中,镗削是孔加工的主要方法之一。精密镗削的精度可达2级,光洁度可达▽ 6～▽8。为了满足镗削需要,除对刀具和机床精度、刚度等提出严格要求外,还必须解决好尺寸调节和切削力所引起的激振等问题。对于普通镗床,这点更为突出。本文介绍一种在国外得到实际应用的新式镗孔装置,它通过差动微调实现刀具在回转半径方向的精确调节,并利用减振环以减小(甚至消除)刀杆的扭转、弯曲振动,其结构如下图所示。调节螺栓3两端分别加工有不同螺距
In the mechanical manufacturing process, boring is one of the main methods of hole machining. Precision boring accuracy of up to 2, finish up ▽ 6 ~ ▽ 8. In order to meet the needs of boring, in addition to the precision of the tool and machine tool, stiffness and other stringent requirements, but also must be resolved size adjustment and cutting force caused by vibration and other issues. For ordinary boring machine, this point is more prominent. This paper introduces a new type of boring device which can be practically used abroad. It uses the fine-tuning of the differential to realize the accurate adjustment of the tool in the radius of gyration, and uses the damping ring to reduce, even eliminate the armature twist, bending vibration, Its structure as shown below. Adjustment screw 3 ends are processed with different pitch