ca6140普通車床的數(shù)控化改造設(shè)計(jì)畢業(yè)論文-展示頁(yè)
2025-06-28 08:16本頁(yè)面
【正文】 the paper introduces the method of machine tool CNC reconstruction, including its structure, performance and accuracy retrofit design of the choice and final reform scheme determination. Keywords: machine； numerical control； modification； meaning 目 錄第1章 數(shù)控化改造的好處 5第2章 數(shù)控化改造方案 6第3章 介紹CA6140普通車床 7……………………………………………………………………………………………………………… ....7 加工范圍及特點(diǎn)....................................................................................................................8 加工范圍 ……………………………………………………………………………8 .2 CA6140車床的加工特點(diǎn)………………………………………………………...93. 3傳動(dòng)系統(tǒng)的介紹………………………………………………………………………...….9 主運(yùn)動(dòng)傳動(dòng)系統(tǒng)…………………………………………………………………….9 車螺紋進(jìn)給傳動(dòng)系統(tǒng)……..………………………………………………………10 縱向、橫向進(jìn)給系統(tǒng)……..………………………………………………………10 刀架的快速移動(dòng)…………………………………………………………………..10第4章 設(shè)計(jì)進(jìn)給系統(tǒng) 11……………………………………………………………………… ..11 切削力的計(jì)算……………………………………………………………………11 …………………………………………………..…...11 滾珠絲杠副的循環(huán)方式………………………………………………………….12 滾珠絲桿的安裝………………………………………………………………… 12 滾珠絲杠的承載能力的計(jì)算…………………………………………………….12 減速齒輪的設(shè)計(jì)…………………………………………………………………14 步進(jìn)電動(dòng)機(jī)的設(shè)計(jì)………………………………………………………………14 橫向進(jìn)給系統(tǒng)的設(shè)計(jì)…………………………………………………………………….15……………………………………………………………………..16………………………………………………………..16…………………………………………………………………..18 步進(jìn)電動(dòng)機(jī)的選擇………………………………………………………………18第5章 改造車床主軸及控制系統(tǒng) 20 改進(jìn)主軸電動(dòng)機(jī)………………………………………………………………………….20………………………………………………………….. 20 螺紋加工過(guò)程中編碼器的作用…………………………………………………. 20……………………………………………………………………. .21………………………………………………………………………….. 21 改進(jìn)刀架………………………………………………………………………………….21 改造刀架的目的 ……………………………………………………………… ...21 刀架的選擇……………………………………………………………………… .21 刀架的工作原理…………………………………………………………………..21 安裝步驟…………………………………………………………………………..21 改進(jìn)機(jī)床導(dǎo)軌…………………………………………………………………………….22 坐標(biāo)系的建立X、Z軸的限位和參考返回電路……………………………………….22 機(jī)床坐標(biāo)系是機(jī)床固有的坐標(biāo)系………………………………………………. 22 機(jī)床坐標(biāo)系是機(jī)床固有的坐標(biāo)系………………………………………………..23 配置用鍵和變頻器的安裝……………………………………………………………….24………………………………………………………………………… ..24…………………………………………………………………….. 2調(diào)試、精度檢驗(yàn)…………………………………………………………..24第6章 結(jié)論 26參考文獻(xiàn) 27致謝 28 第1章 數(shù)控化改造的好處一、有利于企業(yè)技術(shù)的提高，成本的節(jié)約數(shù)控機(jī)床與普通機(jī)床相比，有很大的優(yōu)勢(shì)，數(shù)控機(jī)床具有高度柔性，加工精度高，加工質(zhì)量穩(wěn)定、可靠，生產(chǎn)率高，改善勞動(dòng)條件，利于生產(chǎn)管理現(xiàn)代化；而普通機(jī)床精度低，效率低，適合批量較小，精度要求不高，零活類零件。關(guān)鍵字：機(jī)床；數(shù)控化；改造；意義AbstractNumericallycontrolled machine tool39。用普通機(jī)床加工出來(lái)的產(chǎn)品普遍存在質(zhì)量差、品種少、檔次低、成本高、供貨期長(zhǎng)，從而在國(guó)際、國(guó)內(nèi)市場(chǎng)上缺乏競(jìng)爭(zhēng)力，直接影響一個(gè)企業(yè)的產(chǎn)品、市場(chǎng)、效益，影響企業(yè)的生存和發(fā)展，所以必須大力提高機(jī)床的數(shù)控化率。也就是適合單件、小批生產(chǎn)及新產(chǎn)品的開(kāi)發(fā)，縮短了生產(chǎn)準(zhǔn)備周期，節(jié)省了大量工藝設(shè)備的費(fèi)用。在數(shù)控機(jī)床上加工零件，主要取決于加工程序，它與普通機(jī)床不同，不必制造、更換許多工具、夾具，不需要經(jīng)常調(diào)整機(jī)床。適合批量較小，精度要求不高，零活類零件。由于各運(yùn)動(dòng)副間存在間隙，加上手工操作不準(zhǔn)確，因此重復(fù)精度較低。CA6140普通車床的數(shù)控化改造設(shè)計(jì)摘 要數(shù)控機(jī)床的優(yōu)點(diǎn)：具有高度柔性，加工精度高，產(chǎn)品質(zhì)量穩(wěn)定、可靠，生產(chǎn)效率高，可加工形狀復(fù)雜的零件，改善勞動(dòng)條件，有利于生產(chǎn)管理和機(jī)械加工自動(dòng)化的發(fā)展。普通機(jī)床的缺點(diǎn)：普通機(jī)床靠齒輪和普通絲杠螺母?jìng)鲃?dòng)。普通機(jī)床測(cè)量時(shí)需停車后手工測(cè)量，測(cè)量誤差較大，而且效率低下。它投資較數(shù)控低，但對(duì)工人的操作技能要求較高，因此工資水平高。因此，數(shù)控機(jī)床適用于零件頻繁更換的場(chǎng)合。目前機(jī)床數(shù)控化改造的市場(chǎng)在我國(guó)有很大發(fā)展空間，現(xiàn)在我國(guó)機(jī)床數(shù)控化率不到3％。本文以車床的數(shù)控改造為例，介紹了機(jī)床數(shù)控改造的方法，包括其結(jié)構(gòu)的改造設(shè)計(jì)，性能與精度的選擇以及最后改造方案的確定。s advantage: highly flexible, high machining accuracy, the product quality is stable, reliable, high production efficiency, plex shape of parts processing, improve working conditions, be helpful for production management and mechanical processing automation development. Ordinary machine faults: ordinary on gear and ordinary machine screw nut transmission. Because each movement between clearance, plus vice manual inaccurate repeat precision, so low. When measuring the conventional machine tools to stop, and the measurement error of the manual measuring after bigger, and low efficiency. Suitable for mass is lesser, precision demand is not high, a job kind parts. It is low, but investment to workers numerical control the operation skill is taller, accordingly wage level is high. On the machine processing parts, mainly depends on the processing procedure, it is different, not with ordinary machine manufacture, the replacement of many tools, fixtures, need not change often machine tools. Therefore, CNC machine is suitable for parts frequent change occasion. Also is suitable for single piece and small batch production and development of new products and shorten the production preparation period, save a lot of process equipment costs. At present numerical control machine tool in our country are t
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