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小直径柱形套筒内孔的光洁加工,最好的方法是用镗磨。采用这种方法,不但能达到一定的精度,而且能荻得较高的表面光洁度。现在把一种简单的镗磨直径30～40公厘的镗磨头介绍如下:本体1上开有四个穿通的直槽,卡爪2就嵌入在槽子里,把磨块3卡住,利用弹簧4和本体1联在一起。在锥体5的尾部装有两个销子6,伸出在本体1尾部的通槽外面,在销子6的中间装有一个跟本体1配合的螺母7。当螺母7旋转时,销子6沿着通槽运动,使锥体5作轴向运动,进而使卡爪2联同磨块3一起作张开收缩运动,也就是作改变镗磨头直径大小的运动。螺塞8是防止灰尘进入本体1的内腔用的。在加工时,只要把工具装在机床主轴上就可以了。这种工具装卸起来很方便。当加工不同直径的孔时,可以用螺母7来调整。
Small diameter cylindrical sleeve bore smooth processing, the best way is to use boring mill. Using this method, not only can achieve a certain degree of accuracy, but also to obtain a higher surface finish Di Di. Now a simple boring diameter of 30 to 40 mm boring grinding head introduced as follows: the body 1 has four open through the straight slot, the claw 2 is embedded in the slot, the block 3 stuck, the use of Spring 4 and body 1 together. Two pins 6 are arranged at the rear of the cone 5 and protrude out of the through slot at the tail of the body 1. A nut 7 matched with the body 1 is arranged in the middle of the pin 6. When the nut 7 is rotated, the pin 6 moves along the through groove to make the cone 5 make axial movement, so that the claw 2 together with the grinding block 3 expands and contracts the movement, that is, to change the diameter of the boring head exercise. The plug 8 is for preventing dust from entering the inner cavity of the body 1. In the process, as long as the tool installed in the spindle on the machine on it. This tool is easy to load and unload. When machining holes of different diameters, you can use the nut 7 to adjust.