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數(shù)控螺旋錐齒輪磨齒機(jī)機(jī)床加工誤差補(bǔ)償
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    摘要:

    根據(jù)螺旋錐齒輪齒面的數(shù)學(xué)模型，對(duì)輪齒曲面進(jìn)行了離散化處理,。運(yùn)用矢量運(yùn)算的方法,，給出了齒面離散點(diǎn)徑矢及其法矢的計(jì)算方法,?；诼菪F齒輪切齒計(jì)算得到的比例修正參數(shù)以及砂輪可任意修形的特點(diǎn),，建立了一種基于比例修正參數(shù)和砂輪參數(shù),，對(duì)機(jī)床加工誤差進(jìn)行補(bǔ)償?shù)姆椒?，運(yùn)用最優(yōu)化算法可得到各種比例修正參數(shù)的修正倍數(shù)以及砂輪參數(shù)的改變量。通過(guò)實(shí)際的磨齒加工,、齒形誤差的測(cè)量以及機(jī)床調(diào)整參數(shù)的補(bǔ)償,，驗(yàn)證了機(jī)床加工誤差補(bǔ)償方法的正確性。

    Abstract:

    A method for improving machining precision of CNC spiral bevel gear grinding machine was investigated. The tooth surface of spiral bevel gears was discretized and a method for calculating the position vector and normal vector of discrete points was developed according to the mathematical model of the tooth surface. The relation between proportional change parameters and tooth form errors caused by machining errors was analyzed. Based on the proportional change parameters obtained from machine settings calculation and freewill modification characteristics of grinding wheel, a method for compensating machining errors was proposed. By applying optimization algorithm, the coefficients of proportional change parameters and the variation of grinding wheel parameters were computed. The proposed method was validated via practical machining on YK20100 grinding machine and inspecting on M&M Sigma 7 gear measuring instrument. The results show that this method can reduce the tooth form errors within 5.4μm. 

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王志永,于水琴,曾韜.數(shù)控螺旋錐齒輪磨齒機(jī)機(jī)床加工誤差補(bǔ)償[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2009,40(1):222-226.[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(1):222-226.

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