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我厂生产的自动调喷器中有一个活塞体(如图1所示),内孔为螺旋花键。此花键不是起传递扭矩的作用,而是靠花键做螺旋运动,以调整喷射角度。其有关数据和技术要求为:槽宽b=8~(+0.027)毫米(2级),螺旋导程T=363毫米,左螺旋,内外花键配合必须有四个齿接触,并且配合位置可互换,配合总长不得少于全长的1/2,花键旷动不得大于1/2度,两端内孔A、B对花键不同心度不大于0.03毫米。从零件的参数和技术要求看,精度是比较高的,是产品中的关键零件。我们根据内花键的加工原理,提出了各种方案进行分析比较,最后按零件要求和我厂的
I produced a factory automatic tuner in a piston body (Figure 1), the hole for the spiral spline. This spline is not the role of torque transmission, but by spline helix movement to adjust the injection angle. The relevant data and technical requirements are: slot width b = 8 ~ (+0.027) mm (level 2), helical lead T = 363 mm, left helix, inner and outer splines must have four teeth in contact with each other, and the mating position Interchangeable, with the total length of not less than 1/2 full length, spur Kuang not greater than 1/2 degrees, both ends of the hole A, B concentricity of not more than 0.03 mm. From the parameters of the parts and technical requirements, the accuracy is relatively high, is the key components in the product. We are based on the processing principle of the spline, put forward a variety of programs for analysis and comparison, and finally press the requirements of parts and I plant