畢業(yè)設(shè)計(jì) 軸類零件數(shù)控車削工藝分析及數(shù)控加工編程

摘   要

隨著數(shù)控技術(shù)的不斷發(fā)展和應(yīng)用領(lǐng)域的擴(kuò)大，數(shù)控加工技術(shù)對(duì)國計(jì)民生的一些重要行業(yè)（IT、汽車、輕工、醫(yī)療等）的發(fā)展起著越來越重要的作用，因?yàn)樾?、質(zhì)量是先進(jìn)制造技術(shù)的主題。高速、高精加工技術(shù)可極大地提高效率，提高產(chǎn)品的質(zhì)量和檔次，縮短生產(chǎn)周期和提高市場(chǎng)競爭能力。而對(duì)于數(shù)控加工，無論是手工編程還是自動(dòng)編程，在編程前都要對(duì)所加工的零件進(jìn)行工藝分析，擬定加工方案，選擇合適的刀具，確定切削用量，對(duì)一些工藝問題（如對(duì)刀點(diǎn)、加工路線等）也需要一些處理。并在加工過程掌握控制精度的方法，才能加工出合格的產(chǎn)品。
本文根據(jù)數(shù)控機(jī)床的特點(diǎn)，針對(duì)具體的零件，進(jìn)行了工藝方案的分析，工裝方案的確定，刀具和切削用量的選擇，確定加工順序和加工路線，加工效率，簡化工序等方面的優(yōu)勢(shì)。

關(guān)鍵詞  工藝分析  加工方案  進(jìn)給路線  控制尺寸

Shaft parts CNC turning technology
analysis and NC programming                                                                                                                       
 
Abstract

With the continuous development of numerical control technology and applications expand, CNC machining technology on the economy of a number of important sectors (IT, automotive, light industrial, medical, etc.) play an increasingly important role, since the efficiency, quality is the theme of advanced manufacturing technology. High-speed, high-precision machining technologies can greatly enhance efficiency, improve product quality and grades, shorten the production cycle and improve market competitiveness. For NC processing, whether automatic or manual programming programming, programming before the processing of parts for process analysis, formulation and processing programmes, selecting the right tool to determine the cutting parameters, on a number of technology issues (such as on the knife point, processing line, etc.) also needs some work. And process mastery control precision, to processing the qualified product. This article in accordance with the characteristics of CNC machine tools, tailored to specific parts, a process of analysis, determination of tooling programme, tool and cutting parameters selection, determine the order and processing lines for processing, the processing efficiency, simplify processes, and other benefits.
 
Keywords：analysis processing programme feeding line control size
 
工藝分析  加工方案  進(jìn)給路線  控制尺寸

目錄
摘   要 1
Abstract 2
第一章   概  述 4
1.國內(nèi)外數(shù)控發(fā)展概況 4
第二章   工藝方案分析 8
2.1 零件圖 8
2.2零件圖分析 8
2.3確定加工方法 8
2.4確定加工方案 9
第三章  工件的裝夾 10
3.1定位基準(zhǔn)的選擇 10
3.2定位基準(zhǔn)選擇的原則 10
3.3確定零件的定位基準(zhǔn) 10
3.4裝夾方式的選擇 10
3.5數(shù)控車床常用裝夾方式 10
3.6確定合理的裝夾方式 11
第四章  刀具及切削用量 12
4.1選擇數(shù)控刀具的原則 12
4.2選擇數(shù)控車削用刀具 12
4.3設(shè)置刀點(diǎn)和換刀點(diǎn) 13
4.4確定切削用量 13
第五章 典型軸類零件加工 14
5.1 軸類零件加工的工藝分析 14
5.2 典型軸類零件加工工藝 16
5.3 手工編程 19
第六章   數(shù)控車自動(dòng)編程軟件CAXA介紹 23
1．CAXA數(shù)控車界面 23
2.CAXA數(shù)控車進(jìn)行造型設(shè)計(jì) 23
3．CAXA數(shù)控車加工-CAM 24
4．CAXA數(shù)控車加工類型 24
第七章  結(jié)束語 25
第八章   致謝詞 26
參考文獻(xiàn) 27