MK1332數(shù)控外圓磨床工作臺結(jié)構設計說明書.doc

I 摘 要 隨著制造業(yè)的迅速發(fā)展，傳統(tǒng)的加工設備已無法承擔加工高精度、復雜型面零件的要求，數(shù)控機床良好的加工精度和數(shù)控系統(tǒng)可滿足此要求。而國外的數(shù)控機床比較昂貴，其價格要比國內(nèi)高50%60%，結(jié)合市場調(diào)研和畢業(yè)設計的實際，進行磨床工作臺結(jié)構設計。針對數(shù)控磨床工作臺存在的爬行、顫振現(xiàn)象，進給滾珠絲杠剛性低問題，確定了采用滾珠絲杠帶動工作臺，滾珠絲杠和電動機之間采用同步齒形帶聯(lián)接，工作臺導軌貼塑，從而改善了潤滑條件，同時也起到減振作用， MK1332 數(shù)控外圓磨床的爬行、顫振現(xiàn)象得到有效解決，提高了零件加工質(zhì)量；絲 杠采用兩端固定支承，滾動軸承背靠背組配，剛性可提高一倍。位置檢測裝置采用高分辨率的脈沖編碼器，通過半閉環(huán)控制測量工作臺的直線位移。工作臺型面采用平面形式，減少工作臺的質(zhì)量、轉(zhuǎn)動慣量，使系統(tǒng)有更快的響應特性。本機床對提高加工質(zhì)量和效率、縮短產(chǎn)品開發(fā)周期有積極的意義。 關鍵詞 數(shù)控磨床 工作臺 滾珠絲杠 貼塑導軌 II Abstract Along with the rapid development of the manufacturing sector, the traditional processing equipment has been unable to undertake the processing precision, complex parts of the surface, NC Machine good precision and CNC machining systems can meet this requirement. Abroad CNC machine tools more expensive than domestic prices high 50% 60%. combine market research and graduate of the actual design, structural design workstations Grinder. CNC Grinder against the crawling stage, flutter, feed rigid low-ball screw, determine the use of ball screw driven workstations, ball screw and motor uses synchronous belt link Guide laminating workstations, thereby improving the lubrication conditions, but also play a role in damping, MK1332 CNC Cylindrical Grinder crawl, flutter phenomenon to be an effective solution to improve the quality of the parts processing； Screw using both fixed supports, Rolling back-up, rigid be doubled. Position detection device using high-resolution pulse encoder, through half-closed loop control workstations measurement of linear displacement. Workstations using planar surface forms, reducing the quality of workstations, moment of inertia, allowing the system to have a faster response. The processing machine to improve quality and efficiency, shorten the product developmen