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Y681K 型花键轴铣床最大加工长度为600mm,可加工的花键齿数为4～10键。为了满足加工某产品的要求,我们对该铣床进行了改装,使加工长度扩大至880mm,加工齿数扩大至63齿。图1为原机床结构;图2为改进后的结构,拉序号线的零件为改装部分,其他部分为原结构.改装步骤如下:(1)将原主轴前端法兰盘拆下,另加工一件内径加大的法兰盘1,装在主轴前端.法兰盘的内孔根据目前加工工件的最大外径确定,使工件能进入法兰盘内孔。(2)校正主轴孔,使其椭圆度和不同心度至允许值,然后根据主轴孔配制顶针座3。(3)顶尖与顶尖座采用2级静配合或采用锥体配合,均可。(4)用螺母5、拉杆6、垫圈7将顶尖座拉紧。改装后的机床最大加工长度由原来的600mm 扩
Y681K-type spline shaft milling machine maximum processing length of 600mm, Machinable spline teeth 4 to 10 keys. In order to meet the requirements of the processing of a product, we modified the milling machine to extend the machining length to 880mm and broaden the machining teeth to 63 teeth. Figure 1 is the original structure of the machine, Figure 2 is the improved structure, pull the serial number of the parts for the modified part of the other part of the original structure. Modified steps are as follows: (1) the front spindle flange was removed, the other a The larger the inner diameter of the flange 1, installed in the front end of the spindle flange according to the current maximum diameter of the workpiece to determine, so that the workpiece can enter the flange bore. (2) Correct the spindle hole to make its ovality and concentricity to the allowable value, then make the thimble holder 3 according to the spindle hole. (3) top and top seat with two static or with cone, can be. (4) with the nut 5, rod 6, washer 7 will tapping the top seat. After modification of the maximum machining length of the machine from the original 600mm expansion