【正文】
ncYXpFc KvfaCF ? 式中, 2650?ZFC , ?ZFX , ?ZFY , ??ZFn , 所以 NNF C ?????? ? 切削時消耗功 率 cP 為 kWkWvFP ccc 44 ?????? 由 CA6140 機床說明書可知, CA6140 的主電機功率為 ,當主軸轉速為攀枝花學院??飘厴I(yè)論文(設計) 3 齒輪軸加工工藝規(guī)程設計 8 560r/min 時,主軸傳遞最大功率為 ,所以機床功率足夠,可以正常加工。35mm; 工序 80:銑鍵槽; 工序 90:滾齒; 攀枝花學院??飘厴I(yè)論文(設計) 3 齒輪軸加工工藝規(guī)程設計 7 工序 100:修研中心孔; 工序 110:剃齒; 工序 120:磨外圓 216。50k6mm:粗車→半精車→精車; 尺寸 216。 根據以上選擇的原則,在加工時: ( 1)車左端時,以兩端端面中心孔作為粗基準。50k6mm 和 216。50k6mm 和 216。 加工余量 攀枝花學院??飘厴I(yè)論文(設計) 3 齒輪軸加工工藝規(guī)程設計 5 表 加工余量 尺寸 項目 216。50k6 和 216。 齒輪軸是重要的機械零件,其作用是支承回轉零件并傳遞運動和動力。 它有幾下優(yōu)點: 攀枝花學院??飘厴I(yè)論文(設計) 3 齒輪軸加工工藝規(guī)程設計 4 1,生產率較高 2,鍛件的形狀和尺寸比較精確,機械加工余量小。 2,力學性能的要求。 攀枝花學院??飘厴I(yè)論文(設計) 2 齒輪軸零件分析 2 2 齒輪軸零件分析 該齒輪軸是減速器中高速軸那段,即為低扭矩段,由于小齒 輪直徑較小,所以便采用齒輪軸的設計方式。 攀枝花學院??飘厴I(yè)論文(設計) ABSTRAVT ABSTRACT The main function of the gear shaft is to support rotating parts, achieve rotary motion and transfer torque and power. Gear shaft has a series of advantages, such as high transmission efficiency, pact structure, long service life and so on. It is one of the important parts in the general machinery, particularly the engineering machinery transmission. The optimization of the gear shaft’s machining materials, thermal treatm ent method and machining process will have great significance on the machiningqual ity of the gear shaft and the service life. This paper discussed the machinery manufa cturing process planning and fixture design of milling key of a gear shaft provided by a enterprise. As for process planning and fixture design, there were two different plans for selecting the better one. The paper firstly analyzed the function of the gear s haft and its mechanical properties, and then planned the machining process, finally, the fixture design. As gear shaft requires the higher machinery prehensive properties, we usually select the fings as the fing blank. It is very important for ensuring the processing quality of the gear shaft to arrange the process route reasonably anddivide the processing stage. Using Fixture ca