發(fā)布時(shí)間：2018-01-25 09:22

  本文關(guān)鍵詞： 輪轂 UG VERICUT　出處：《燕山大學(xué)》2015年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：輪轂是汽車(chē)的主要部件之一,承載著車(chē)輛的全部重量,隨著人們對(duì)汽車(chē)安全性和外觀款式的要求越來(lái)越高,傳統(tǒng)的鋼制輪轂逐漸被鋁合金輪轂所替代。鋁合金輪轂不僅在安全性上比剛制輪轂提高數(shù)倍,而且款式多樣,滿(mǎn)足了人們對(duì)外觀個(gè)性化的需求。本文針對(duì)鋁合金輪轂壓鑄模具曲面形狀復(fù)雜、小批量、多品種的特點(diǎn)將數(shù)控加工和虛擬仿真加工等先進(jìn)技術(shù)應(yīng)用到了汽車(chē)鋁合金輪轂?zāi)＞咧圃熘�。汽�?chē)鋁合金輪轂壓鑄模具加工是一個(gè)復(fù)雜的過(guò)程,本文結(jié)合UG NX和VERICUT軟件對(duì)這一過(guò)程進(jìn)行了研究。利用UG NX軟件對(duì)汽車(chē)鋁合金輪轂鑄造模具進(jìn)行參數(shù)化建模,并對(duì)鑄造模具進(jìn)行工藝分析,在保證零件各個(gè)部位加工精度的前提下,確定了鑄造模具所使用的加工方法、裝夾方式、加工刀具及機(jī)床等。根據(jù)汽車(chē)鋁合金輪轂鑄造模具的特征,使用UG NX軟件的CAM模塊對(duì)壓鑄模具各個(gè)部分采用不同的走刀方式并生成刀具路徑,利用后處理模塊生成了可被機(jī)床直接執(zhí)行的G代碼。在VERICUT軟件中建立虛擬數(shù)控加工環(huán)境,進(jìn)行虛擬數(shù)控機(jī)床進(jìn)行建模和組裝,并配備FANUC 0i的數(shù)控系統(tǒng),建立虛擬加工中所使用的刀具庫(kù),并對(duì)每把刀具進(jìn)行參數(shù)設(shè)置。將UG NX軟件生成的NC代碼導(dǎo)入到VERICUT軟件中進(jìn)行虛擬加工,首先利用軟件中的AUTO-DIFF模塊對(duì)加工過(guò)程中的各種碰撞、過(guò)切、欠切等情況進(jìn)行分析和檢驗(yàn),保證實(shí)際加工中數(shù)控程序的準(zhǔn)確性。然后利用軟件中的Opti Path模塊優(yōu)化數(shù)控程序,減少加工時(shí)間、提高加工質(zhì)量并降低刀具磨損。本文證明了利用UG NX和VERICUT軟件相結(jié)合對(duì)汽車(chē)鋁合金輪轂?zāi)＞呒庸みM(jìn)行編程及虛擬加工是一種可行并有效的方法。通過(guò)對(duì)虛擬加工結(jié)果的檢驗(yàn)及校正使得加工質(zhì)量和加工效率相應(yīng)提高,這大大增強(qiáng)了企業(yè)在市場(chǎng)上的競(jìng)爭(zhēng)力。
[Abstract]:Wheel hub is one of the main parts of the automobile, carrying the total weight of the vehicle, with the increasing requirements for the safety and appearance of the car style. Traditional steel wheels are gradually replaced by aluminum alloy wheels. Aluminum alloy wheels not only improve the safety of rigid wheels several times, but also a variety of styles. In this paper, the die casting die surface of aluminum alloy hub complex shape, small batch. Many kinds of advanced technologies such as NC machining and virtual simulation machining are applied to the manufacture of automobile aluminum alloy wheel hub die casting die processing is a complex process. This paper studies this process with UG NX and VERICUT software. Using UG NX software, the parameterized modeling of the casting die of automobile aluminum alloy hub is carried out. On the premise of ensuring the machining accuracy of various parts of the parts, the machining methods and clamping methods used in the casting mould are determined. According to the characteristics of the casting die of automobile aluminum alloy wheel hub, the CAM module of UG NX software is used to use different cutting way and generate tool path for each part of die casting die. The G code which can be executed directly by the machine tool is generated by the post processing module. The virtual NC machining environment is established in the VERICUT software, and the virtual NC machine tool is modeled and assembled. And equipped with FANUC 0i numerical control system, set up the tool library used in virtual machining. The NC code generated by UG NX software is imported into VERICUT software for virtual machining. First, the AUTO-DIFF module in the software is used to analyze and test all kinds of collision, overcut, undercut and so on in the process of machining. Ensure the accuracy of NC program in actual machining. Then use the Opti Path module in the software to optimize the NC program and reduce the processing time. It is proved in this paper that using UG to improve machining quality and reduce tool wear. The combination of NX and VERICUT software is a feasible and effective method for programming and virtual machining of automobile aluminum alloy hub die. The processing efficiency is improved accordingly. This has greatly enhanced the competitiveness of enterprises in the market.
【學(xué)位授予單位】：燕山大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：TG659

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