本文選題：弧齒錐齒輪 + 反求測(cè)量��； 參考：《河南科技大學(xué)》2011年碩士論文

【摘要】：弧齒錐齒輪因?yàn)閭鲃?dòng)平穩(wěn)、噪音小、承載能力及重合度高而被廣泛應(yīng)用于相交軸的傳動(dòng)中,但是因其齒面結(jié)構(gòu)復(fù)雜、加工調(diào)整困難,在應(yīng)用過(guò)程中此種齒輪還不能達(dá)到完全的互換,經(jīng)常須配對(duì)加工,成對(duì)使用,且更換起來(lái)也很困難,由此造成的配件問(wèn)題也越來(lái)越突出�；↓X錐齒輪數(shù)字化是弧齒錐齒輪閉環(huán)設(shè)計(jì)與制造技術(shù)中的關(guān)鍵步驟,而逆向工程技術(shù)做為先進(jìn)制造技術(shù)的一個(gè)分支,通過(guò)對(duì)實(shí)物的參照設(shè)計(jì),在只有實(shí)體而沒(méi)有工程圖紙的情況下,通過(guò)測(cè)量設(shè)備來(lái)獲取實(shí)體的三維數(shù)據(jù),利用三維重構(gòu)軟件生成實(shí)體的幾何模型,并在此基礎(chǔ)上得到數(shù)控加工程序,控制數(shù)控機(jī)床加工出合格的產(chǎn)品。將逆向工程技術(shù)思想應(yīng)用到弧齒錐齒輪閉環(huán)制造技術(shù)中,重構(gòu)了真實(shí)齒面的弧齒錐齒輪三維模型,為接觸仿真、運(yùn)動(dòng)仿真分析提供了精確的模型,也為齒輪修形、齒輪優(yōu)化設(shè)計(jì)及數(shù)控加工提供了依據(jù),具有重要的理論意義和應(yīng)用價(jià)值。 本文的研究?jī)?nèi)容及成果如下: 1.根據(jù)弧齒錐齒輪數(shù)字化集成技術(shù)的要求,確定了具體的實(shí)施方案,即反求測(cè)量—反求分析計(jì)算—真實(shí)齒面測(cè)量—建模。 2.根據(jù)現(xiàn)有螺旋錐齒輪逆向設(shè)計(jì)的現(xiàn)狀,具體到弧齒錐齒輪的逆向設(shè)計(jì),基于弧齒錐齒輪齒向線和齒廓線測(cè)量反求其設(shè)計(jì)參數(shù)及其部分加工參數(shù),完成了弧齒錐齒輪基于特征線的逆向反求,得到了反求數(shù)據(jù)。 3.應(yīng)用齒輪嚙合原理和微分幾何學(xué),依據(jù)錐齒輪設(shè)計(jì)與加工的理論,推導(dǎo)出了弧齒錐齒輪大小輪的理論齒面方程,并按照坐標(biāo)變換原理,規(guī)劃了齒面測(cè)量網(wǎng)格,求解出了理論齒面的三維坐標(biāo)值。 4.運(yùn)用CNC齒輪測(cè)量中心,基于齒面網(wǎng)格理論坐標(biāo)值,測(cè)量了一對(duì)經(jīng)過(guò)滾檢合格的弧齒錐齒輪,得到了真實(shí)齒面的三維坐標(biāo)值,同時(shí)也獲得了齒面誤差圖,運(yùn)用CATIA強(qiáng)大的曲面造型能力,重構(gòu)了基于真實(shí)齒面的CAD模型,完成了弧齒錐齒輪的數(shù)字化。 5.根據(jù)錐齒輪接觸分析技術(shù),求解了真實(shí)齒面方程及加工參數(shù),對(duì)真實(shí)齒面進(jìn)行了TCA分析,得到了弧齒錐齒輪嚙合的接觸路徑和傳動(dòng)誤差曲線。
[Abstract]:The spiral bevel gear is widely used in the transmission of the intersecting shaft because of its smooth transmission, small noise, high bearing capacity and high coincidence degree. But because of the complex structure of the tooth surface, the machining adjustment is difficult. In the process of application, this kind of gear can not be completely interchanged. It is often necessary to match the work, use it in pairs, and make it difficult to replace it. The problem of fitting parts is becoming more and more prominent. The digitalization of spiral bevel gear is the key step in the closed loop design and manufacturing technology of the spiral bevel gear, and the reverse engineering technology is a branch of the advanced manufacturing technology. By the reference design of the object, the object is obtained by the measuring equipment in the case of only the entity without the engineering drawings. On the basis of the 3D data, the geometric model of the entity is generated by the 3D reconstruction software, and the NC machining program is obtained on this basis to control the qualified products. The reverse engineering technology is applied to the closed loop manufacturing technology of the spiral bevel gear, and the three-dimensional model of the arc tooth bevel gear is reconstructed for the contact simulation. The dynamic simulation analysis provides an accurate model. It also provides a basis for gear modification, gear optimization design and NC machining, which has important theoretical significance and application value.
The contents and results of this study are as follows:
1. according to the requirements of the digital integrated technology of spiral bevel gear, the concrete implementation scheme is determined, namely, reverse measurement, reverse analysis and calculation - real tooth surface measurement - modeling.
2. according to the present situation of the reverse design of the spiral bevel gear, the reverse design of the spiral bevel gear is made. Based on the curve and profile of the spiral bevel gear, the design parameters and the parts of the machining parameters are calculated. The reverse reverse process of the spiral bevel gear based on the characteristic line is completed, and the reverse data is obtained.
3. the theory of gear meshing and differential geometry is applied. Based on the theory of bevel gear design and machining, the theoretical tooth surface equation of the spiral bevel gear wheel is derived, and the mesh of tooth surface measurement is planned according to the coordinate transformation principle, and the three-dimensional coordinate value of the theoretical tooth surface is solved.
4. using the CNC gear measurement center and based on the theoretical coordinates of the tooth surface mesh, a pair of qualified spiral bevel gear has been measured, and the three-dimensional coordinate value of the real tooth surface is obtained. At the same time, the tooth surface error map is obtained. The CAD model based on the real tooth surface is reconstructed by using the powerful surface modeling ability of CATIA, and the number of spiral bevel gear is completed. Word - oriented.
5. according to the contact analysis technology of bevel gear, the real tooth surface equation and processing parameters are solved. The real tooth surface is analyzed by TCA, and the contact path and the transmission error curve of the spiral bevel gear meshing are obtained.

【學(xué)位授予單位】：河南科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2011
【分類號(hào)】：TH132.41

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本文編號(hào)：1795670