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成组加工技术中采用可调整的工艺装备时,调整部份的设计是个关键问题。现选编一些轴向尺寸和径向尺寸的微调机构,以供参考选用。一、差动螺纹机构 (1)图1和图2是旋向相同而螺距不同的双螺纹差动微调机构。当差动螺钉转动一圈时,移动心轴移动了两个螺距的差值,通常为0.2～0.25mm。图1中的弹簧和图2中螺母套上的小螺钉都是用来消除螺杆和螺母的间隙。 (2)图3和图4都是采用差动螺钉来调整镗刀位置的微调机构。图3中镗杆的基准面上可以安放带指
Adjustable part of the design is a key issue when using adjustable process equipment in group processing. Selection of some of the axial size and radial size of the fine-tuning agencies, for reference selection. First, the differential screw mechanism (1) Figure 1 and Figure 2 is the same direction and the pitch difference of the two-screw differential fine-tuning mechanism. When the differential screw is rotated one turn, the moving mandrel is moved by the difference between the two pitches, usually from 0.2 to 0.25 mm. The springs in Figure 1 and the nuts in Figure 2 are used to eliminate the clearance between the screw and nut. (2) Figure 3 and Figure 4 are the use of differential screw to adjust the boring knife position fine-tuning mechanism. Figure 3 boring bar reference plane can be placed with a finger