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黃河科技學(xué)院畢業(yè)設(shè)計說明書 第 IV 頁
激光快速成型機光頭支撐控制架設(shè)計
摘 要
激光是一種經(jīng)受激輻射產(chǎn)生的加強光，它具有高亮度，高方向性，高單色性和高相關(guān)性四大綜合性能。激光加工是工件在光熱效應(yīng)下產(chǎn)生高溫熔融忽然受沖擊波拋出的綜合過程。數(shù)控激光加工是常用的一種加工方法，激光快速成型機的加工對象:有機板、布料、紙、皮革、橡膠、厚紙板、密集版、發(fā)泡棉、美耐皿、玻璃、塑膠，以及其它非金屬。激光快速成型技術(shù)已廣泛用于機械工業(yè)，電子工業(yè)，國防和人民生活等許多領(lǐng)域。
光頭控制架架設(shè)計是激光快速成型機設(shè)計的主要部分。該部分包括激光路線的設(shè)計，導(dǎo)軌系統(tǒng)的設(shè)計，同步帶系統(tǒng)的設(shè)計三個部分。導(dǎo)軌系統(tǒng)在機架中主要起導(dǎo)向和支撐作用，其主要部件是導(dǎo)軌副。本設(shè)計中要求在二維平面內(nèi)實現(xiàn)數(shù)控加工，因此，可用兩組導(dǎo)軌副以及一些附件來滿足要求。第一組導(dǎo)軌副由兩根平行的直線導(dǎo)軌組成，與機床床身相連接。第二組導(dǎo)軌副位于一根矩形橫梁之上，橫梁固定在第一組導(dǎo)軌副的兩個動滑塊上。這兩組導(dǎo)軌副分別由一個步進電動機通過同步帶系統(tǒng)驅(qū)動，從而實現(xiàn)在X軸，Y軸方向的二維加工。
關(guān)鍵詞：激光加工，導(dǎo)軌副，同步帶
Laser Rapid Protoping Machine Bald Control Frame Design
Author: Xie Cheng Zhe
Tutor: Yang Han Song
Abstract
Laser radiation is a shock through the strengthening light, it has a high-brightness, high-directional, high monochrome and high coherence of the four properties. Laser processing is part of the light and heat produced by high-temperature melting all of a sudden shock wave threw out the comprehensive process. The number controls the laser machine is in common use a kind of process the method, CNC laser engraving can be used for processing board, cloth, paper, leather, rubber, cardboard, intensive version of the foam, melamine, glass, plastic and other non-metallic materials .CNC laser engraving technology has been widely used in industrial machinery, electronic industry, national defense and people's lives and many other fields.
NC rack design laser engraving machine is a major part of the design. The laser line, including some of the design of the rail system design, the timing belt system designed in three parts. Rail system from the rack in the role of guidance and support, and its main component is the Deputy Guide. The design called for the realization of two-dimensional plane of the NC, therefore, can guide the two groups and some of the annex to meet the requirements. The first group of rails by two parallel linear guide components, machine tools and connected to bed. The second group of rails in a rectangular beams above the fixed beams in the first group of the two rails on the fixed slider. The two rails by a deputy stepper motor through the belt-driven system to achieve X-axis, Y-axis of two-dimensional processing.
Key words: Laser processing, Vice Guide, The timing belt
目 錄
1 緒論 ……………………………………………………………………………………… 1
1.1課題的背景及目的…………………………………………………………………… 1 1.2 RP技術(shù)的分類 ………..……………….....................………………………………… .1
1.3激光快速成型機光頭控制價設(shè)計的方案確定...………...…………………………….3
1.4激光雕刻機的加工特點.................................…………………………………………. 3
1.5激光加工及數(shù)控激光雕刻機的適用范圍……………………………………………...4
2總體方案設(shè)計 ………………………………………………………………………………5
2.1機架設(shè)計的準(zhǔn)則與要求 ………………………………………………….……………5
2.2激光雕刻機的機械部分結(jié)構(gòu)...........................................................................................5
2.3機架的總體設(shè)計 ……………………………………………………………………… 6
3導(dǎo)軌副的設(shè)計 …………………………....……………………………....…………………7
3.1導(dǎo)軌支撐架的設(shè)計 …………………………………………………………………… 7
3.2導(dǎo)軌副的選擇 ………………………………………………………………………… 7
3.3導(dǎo)軌副的設(shè)計 …………………………………………………............……………… 8
3.4導(dǎo)軌材料的選擇及熱處理 ………………………………………....…………….……9
3.5導(dǎo)軌額定壽命的計算.......................................................................................................9
4同步帶系統(tǒng)的設(shè)計及電機的選擇 ....……………………………………………………11
4.1同步帶的選擇 ………………………………………………………………....…… 11
4.2同步帶輪的設(shè)計…………………………...............................................……………. 16 4.3帶輪擋圈的設(shè)計 …………………………………………………………………… 17
5支撐裝置的設(shè)計.......................................................................................................19
5.1軸承的選擇.....................................................................................................................19
5.2計算軸承壽命.................................................................................................................19
5.3從動輪軸承座的設(shè)計.....................................................................................................20
5.4帶輪軸軸承座的設(shè)計.....................................................................................................21
6軸的設(shè)計................................................................................................................................22
6.1帶輪軸的設(shè)計.................................................................................................................22
6.2從動軸的設(shè)計.................................................................................................................22
結(jié)論 ………………………………………………………………………………………… 24
致謝 ………………………………………………………………………………………… 25
參考文獻 …………………………………………………………………………………… 26