三坐標(biāo)數(shù)控磨床設(shè)計說明書.doc

XXXX學(xué)校畢業(yè)設(shè)計第1頁中文摘要本次設(shè)計為三坐標(biāo)數(shù)控磨床，該機床能通過三軸聯(lián)動，實現(xiàn)曲線直線等不同的加工路線，同時可以通過更換砂輪來加工不同的型腔和輪廓提高其表面質(zhì)量。另外該機床也能夠?qū)ζ渌恍┕ぞ吡慵M行表面加工。所設(shè)計的三坐標(biāo)數(shù)控磨床，磨頭與立柱之間用鼠齒器相連，可以改變主軸與工作臺的角度。三個坐標(biāo)方向的移動均由交流伺服電機帶動絲杠驅(qū)動，所選用的聯(lián)軸器為十字滑塊聯(lián)軸器，工作臺選用雙推與雙推軸承組成兩端固定支承，達到所要求的高精度。三個方向通過速度反饋和位置反饋實現(xiàn)閉環(huán)系統(tǒng)。主軸電機采用交流電機，由變頻器對其進行無級調(diào)速。所有電機均有單片機進行控制。此設(shè)計主要對數(shù)控磨床的機構(gòu)進行設(shè)計，了解單片機的工作原理，主要有以下幾個方面：X、Y工作臺的傳動機構(gòu)設(shè)計，主要是滾珠絲杠的運用；伺服系統(tǒng)應(yīng)用開環(huán)控制，了解它的工作原理；機床整體結(jié)構(gòu)的設(shè)計，了解優(yōu)缺點，充分考慮主要矛盾，擇優(yōu)選??；數(shù)控裝置的設(shè)計，了解其控制原理。設(shè)計中充分考慮經(jīng)濟性、工藝性、適用性等要求，選擇最好的方案，以達到最佳的效果。關(guān)鍵詞：數(shù)控三坐標(biāo)磨床XXXX學(xué)校畢業(yè)設(shè)計第2頁英文摘要Thisdesignisfortri-coordinatenumericalcontrolgrindingmachine.Thismachinetoolcanworkalongthecurveandstraightlinethroughco-operationofthreeaxles.Bychangingtheabrasivewheelitcanalsoprocessdifferenttypeandoutline.Andthusimprovethequalityofitssurface.Furthermore,thismachinetoolcanhandletheface-improvingprocessofothertoolsandcomponents.Thetri-coordinateNCcurvedsurfacegrindingmachineworkheadisconnectedwithstandpostbymeansofamouse-toothdevice.Itcanchangetheanglebetweenthemainaxleandworkdesk.Themotionoftri-coordinatedirectionisurgedbyDC.Theworkdeskisfixedatbothends,thusitcanreachthehighaccuracy.Threecoordinatedirectionmoveandurgebydirectcurrentserveelectricalmachineryandrealizehalfcloseringsystemthroughspeedfeedbackandpositionfeedback.Mainshaftadoptandexchangeelectricalmachinerybyelectricalmachinery,goonstepspeedregulationtotheirbyconverter.Allelectricalmachineriesarecontrolledbytheone-chipcomputer.Inthiswaytheproductproducedarewithhighqualitywemainlydesignthestructureofthenumericallycontrolledmillingmachine,andfindoutcontrolprncipleofsingletoolmachine:ThedesignofthetransmissionstructureofX、Yworktable.Mainlytheapplicationofbollbeany；Assitingsystemwiththecontrolofopen-loopsystemanditsworkingprinples；ThedesignofthewholeXXXX學(xué)校畢業(yè)設(shè)計第3頁machinestructureanditadvantagesanddisadvantages；Thedesignofthenumericallycontrolleddevice,anditscontrolprinciples.Inthisdesign,wefullyconsiderthepracticalordersofeconomy,technologyandapplicabilityandchoosetheleastplantogettheleasteffect.KeyWords:NumericalControlTri-coordinateMillingMachineXXXX學(xué)校畢業(yè)設(shè)計第4頁目錄中文摘要.1英文摘要.2目錄.4第一章概論.11.1數(shù)控機床的產(chǎn)生與發(fā)展.11.2何謂數(shù)控機床.21.3數(shù)控機床的應(yīng)用范圍.21.4數(shù)控機床的基本組成.21.5數(shù)控機床的分類.31.6數(shù)控機床的工作過程.31.7數(shù)控機床的特點.31.8磨削概論.31.9三坐標(biāo)數(shù)控磨床.4第二章總體結(jié)構(gòu)設(shè)計.72.1提高機床的結(jié)構(gòu)剛度的設(shè)計.72.2提高機床的抗振性的措施.92.3提高機床靈敏度.9第