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山東大學(xué)本科生畢業(yè)設(shè)計(jì)(論文)
目 錄
第1章 前言 1
1.1 關(guān)于牛皮切邊專(zhuān)用機(jī)床 1
1.2 課題的來(lái)源、基本前提條件及基本要求 1
1.3 本課題要解決的主要問(wèn)題和設(shè)計(jì)的總體思路 1
1.4 簡(jiǎn)述預(yù)期成果及其理論意義或?qū)嶋H價(jià)值2.1 國(guó)內(nèi)外發(fā)展現(xiàn)狀 3
2.2 總體方案 5
2
第2章 總體方案設(shè)計(jì) 3
2.2.1 工作臺(tái)的設(shè)計(jì) 5
2.2.2 工作臺(tái)傳動(dòng)機(jī)構(gòu)的設(shè)計(jì) 5
2.2.3 數(shù)控部分設(shè)計(jì) 6
第3章 機(jī)械部分設(shè)計(jì) 7
3.1 傳動(dòng)部分的說(shuō)明 7
3.2 蝸輪的設(shè)計(jì) 7
3.2.1 蝸輪的參數(shù)計(jì)算 8
3.2.2 蝸桿傳動(dòng)的強(qiáng)度計(jì)算 ............ 11
3.3 齒輪的設(shè)計(jì)..........................................................................................14
3.3.1 壓力角a的選擇 14
3.3.2 小齒輪齒數(shù)Z1的選擇 14
3.3.3 齒寬系數(shù)的選擇 15
3.3.4 齒輪精度選擇 16
3.4 軸的結(jié)構(gòu)設(shè)計(jì).....................................................................................17
3.4.1 花鍵...........................................................................................18
3.5 工作臺(tái)的設(shè)計(jì)圖................................................................................19
第4章 數(shù)控系統(tǒng)的設(shè)計(jì) 20
4.1 概述 20
4.2 微機(jī)數(shù)控系統(tǒng)的硬件電路設(shè)計(jì) 20
4.2.1 單片機(jī)的選擇 21
4.2.2 存儲(chǔ)器擴(kuò)展 22
4.2.3 I/O接口的擴(kuò)展 24
4.2.4 鍵盤(pán)接口設(shè)計(jì) 24
4.2.5 數(shù)碼管顯示電路 25
4.3 軟件設(shè)計(jì) 25
4.3.1 步進(jìn)電機(jī)的環(huán)形分配 26
4.3.2 圓弧插補(bǔ)原理及其程序設(shè)計(jì) 27
4.3.3 步進(jìn)電機(jī)的控制及其程序設(shè)計(jì) 30
4.3.4 中斷功能診斷 32
4.3.5 工作臺(tái)的加工示意框圖 34
結(jié)論 35
參考文獻(xiàn) 36
致謝 37
摘 要
牛皮切邊機(jī)是為了提高工作效率而進(jìn)行設(shè)計(jì)的專(zhuān)用機(jī)床，該機(jī)械主要用于槍套等牛皮切邊產(chǎn)品的毛邊的切削。要求切削的工作效率高，機(jī)床的控制可靠，工作運(yùn)行平穩(wěn)，應(yīng)用范圍廣。數(shù)控部分設(shè)計(jì)采用以步進(jìn)電機(jī)驅(qū)動(dòng)的開(kāi)環(huán)控制。設(shè)計(jì)的總體思路是采用二級(jí)傳動(dòng)，由步進(jìn)電機(jī)帶動(dòng)蝸輪，蝸桿再帶動(dòng)工作臺(tái)做穩(wěn)定，快速的圓周運(yùn)動(dòng)。刀具的運(yùn)動(dòng)由于是受專(zhuān)門(mén)的控制軟件通過(guò)控制系統(tǒng)來(lái)控制走刀路徑，以直線(xiàn)路徑替代加工輪廓的各種曲線(xiàn)，大大提高了工作效率。微機(jī)數(shù)控系統(tǒng)的硬件電路設(shè)計(jì)主要是利用電路中各器件及電器元件的參數(shù)及型號(hào)繪制電氣原理圖。其機(jī)床數(shù)控系統(tǒng)硬件電路概括起來(lái)由CPU、總線(xiàn)、存儲(chǔ)器以及I/O接口四部分組成。由于考慮了成本，選用常用的8031單片機(jī)，它在各種數(shù)控系統(tǒng)中的到廣泛的應(yīng)用。
牛皮切邊專(zhuān)用機(jī)床的設(shè)計(jì)制造滿(mǎn)足了技術(shù)發(fā)展的需要，提高了生產(chǎn)率和產(chǎn)品的精度，增大了設(shè)備的適應(yīng)能力和型面加工范圍
關(guān)鍵詞：步進(jìn)電機(jī) 8031單片機(jī) 電器元件 硬件電路
Abstract
Leather Cutting Machine is to improve the efficiency and design of special purpose machine, the machine is mainly used for holsters and other leather products, flash trimming cutting. Required high cutting efficiency, reliable machine control, work stable operation, wide application. NC part of the design uses to stepping motor-driven open-loop control. The general concept of design is used 2 drive, worm gear driven by a stepping motor, worm drive and then do bench stability, quick circular motion. As the tool movement is subject to special control software through the control system to control the tool path, a straight line path to alternative processing contour curves, greatly improved work efficiency. Computer numerical control system hardware design is to use the device and circuit parameters of electrical components and electrical schematic drawing models. The CNC system hardware summed up by the CPU, bus, memory and I / O interfaces in four parts. In consideration of the cost, commonly used in 8031 used it in a variety of numerical control systems to a wide range of applications.
Leather trimming machine tool design and manufacture to meet the needs of technology development, improved productivity and accuracy of the product and increase the adaptability of the equipment and the range of surface processing
Keywords: stepper motor 8031 hardware electrical components
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