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当轴长度超出1500毫米(超出铣床工作台有效行程)时,轴两端键槽的铣削常采用划线、调头找正的方法,加工精度较低(键槽的对称度一般只能达到0.20毫米),工效很低。为了提高超长轴的加工精度及工效,设计了一种超长轴铣削用的工装,使铣削平稳,加工的键槽位置度大为提高。现简介如下:一、装置结构被加工轴由工作台上的两个V型铁定位(见图1)悬伸端由滑动千斤顶支承。当轴一端的键槽加工好后,连同周向定位盘一起掉头重新定位夹紧,即可进行另一
When the shaft length exceeds 1500mm (beyond the valid working stroke of the milling machine table), the milling of the keyways at both ends of the shaft often adopts the method of scribing and aligning, and the machining accuracy is low (the symmetry of keyway can only reach 0.20mm generally) Low efficiency. In order to improve the machining accuracy and work efficiency of the super long axis, a tooling for extra long axis milling is designed to make the milling stable and greatly improve the keyway position. Now briefings are as follows: First, the device structure is processed shaft by the two V-shaped iron on the table positioning (see Figure 1) overhang by the sliding jack support. When the shaft at one end of the keyway is processed, together with the circumferential plate together U-turn repositioning clamp, you can make another