摘 要


工件軸電機用來帶動工件旋轉(zhuǎn)，具有粗超和精超兩個速度，具體數(shù)值根據(jù)生產(chǎn)現(xiàn)場要求確定。采用數(shù)字量進行控制，電機的轉(zhuǎn)速可通過系統(tǒng)使用的數(shù)控系統(tǒng)的邏輯輸出點控制，通過選折不同的頻率值來調(diào)節(jié)。交流調(diào)速的主要方法之一是變頻調(diào)速，變頻調(diào)速需要為交流電動機提供頻率和電壓均可改變的交流電源，這種電源稱為變頻器。大型軸承內(nèi)外滾道超精機的粗超和精超兩個變頻調(diào)速分別由兩個變頻器控制，通過變頻器控制震蕩電機來磨削工件，要求速度在0~~1400R/MIN范圍內(nèi)無級調(diào)速。采用模擬量進行控制，通過系統(tǒng)使用的數(shù)控系統(tǒng)輸出0~~10V的給定電壓，來調(diào)節(jié)電機的轉(zhuǎn)速。軸承滾道超精機，包括電機、連桿、馱板支輥、偏心套、滑套、壓簧、往復軸、超精軸、超精機軸筒、緊固套、壓簧和油石卡頭。電機軸以鍵與偏心套連接，偏心套外設(shè)置有半圓體，連桿的前端與半圓體焊接固連，連桿的另一端通過連動銷與往復軸聯(lián)接，在往復軸上套裝有滑套和壓簧，往復軸的另一端與緊固套連接，緊固套固定在超精機軸筒上，該筒套裝在超精軸上，電機、軸承超精軸的軸承馱板均固定在馱板支輥上。本實用新型可使內(nèi)外圈滾道光潔度達到９級以上。


關(guān)鍵字：粗超，精超，變頻調(diào)速，軸承馱板，超精機軸筒


ABSTRACT




The work piece axis electrical machinery uses for to lead work piece revolving, has thick ultra and the fine ultra two speeds, the concrete value basis produces the scene request determination.Uses the digital quantity to carry on the control, the electrical machinery rotational speed may through a system use numerical control system logical output control, through elects to fold the different frequency value to adjust.One of exchange velocity modulation main methods is the frequency conversion velocity modulation, the frequency conversion velocity modulation needs to provide the alternating current supply for the motor which the frequency and the voltage may change, this kind of power source is called the frequency changer.Inside and outside large-scale bearing roller conveyer ultra precision instrument thick ultra and fine ultra two frequency conversion velocity modulation separately by two frequency changer controls, comes the grinding work piece through the frequency changer control shake electrical machinery, the request speed in the 0~~1400R/MIN scope the stepless speed regulation.Uses the simulation quantity to carry on the control, outputs 0~~10V through the system use numerical control system to assign the voltage, adjusts the electrical machinery the rotational speed.The bearing roller conveyer ultra precision instrument, including the electrical machinery, the connecting rod, carries on the back a board roller, the biased set, slides the set, presses the reed, the reciprocating shaft, the ultra fine axis, the ultra fine engine shaft tube, the fastening set, presses the reed and the oilstone chuck.The electricity engine shaft by the key and a biased set of connection, a biased set of outside establishment has the semicircle body, connecting rod front end welds the solid company with the semicircle body, the connecting rod another end sells through the gearing with the reciprocating shaft joint, the coverall has on the reciprocating shaft slides the set and presses the reed. The electricity engine shaft by the key and a biased set of connection, a biased set of outside establishment has the semicircle body, connecting rod front end welds the solid company with the semicircle body, the connecting rod another end sells through the gearing with the reciprocating shaft joint, the coverall has on the reciprocating shaft slides the set and presses the reed, the reciprocating shaft another end and a fastening set of connection, the tight wrap fixes in the ultra fine engine shaft tube, this casing of coverall on the ultra fine axis, the electrical machinery, the bearing ultra fine axis bearing carries on the back the board to fix in carries on the back on a board roller.In this practical new may enable the addendum circle roller conveyer smooth finish to achieve above 9 levels.


KEY WORDS: the concrete value basis, numerical control system, electricity engine


 


目錄

前言……………………………………………………………………..5

1變頻調(diào)速簡介……………………………………………….................5

1.1變頻技術(shù)在現(xiàn)代工業(yè)的應(yīng)用……………………………………………………6

1.2變頻調(diào)速的基本構(gòu)成………………………………………………………….6

1.2.1交-交變頻器…………………………………………………………………7 

1.2.2交-直-交變頻器……………………………………………………………..8

1.3變頻器的分類……………………………………………………9

1.4 變頻器頻率設(shè)置的幾種方法…………………………………..11

1.5 變頻器的參數(shù)設(shè)置………………………………………………12

1.6變頻技術(shù)的應(yīng)用………………………………………………..13

2滾道內(nèi)外軸承超精機的變頻調(diào)速……………………14

2.1電氣車床的變頻技術(shù)………………………………………..15

2.2開關(guān)量控制…………………………………………………..15

2.3模擬量控制………………………………………………..16

2.4控制電機的停止……………..