畢業(yè)設(shè)計(jì)：TY295柴油機(jī)機(jī)體三面鉆孔組合機(jī)床總體及后主軸箱設(shè)計(jì)
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文獻(xiàn)資料
A0-TY295柴油機(jī)機(jī)體三面鉆孔工序圖.dwg
A0-后蓋補(bǔ)充加工圖.dwg
A0-后主軸箱補(bǔ)充加工圖.dwg
A0-后主軸箱裝配圖.dwg
A0-機(jī)床聯(lián)系總圖.dwg
A0-加工示意圖.dwg
A0-前蓋補(bǔ)充加工圖.dwg
A1-手柄軸.dwg
A2-箱體坐標(biāo)檢查圖.dwg
A2-主軸.dwg
A3-側(cè)蓋補(bǔ)充加工圖.dwg
A3-傳動(dòng)軸.dwg
A4-生產(chǎn)率計(jì)算卡.dwg
畢業(yè)論文：TY295柴油機(jī)機(jī)體三面鉆孔組合機(jī)床總體及后主軸箱設(shè)計(jì).doc
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TY295柴油機(jī)機(jī)體三面鉆孔組合機(jī)床總體及后主軸箱設(shè)計(jì)
摘要：由于TY295柴油機(jī)使用的廣泛性，該型號(hào)柴油機(jī)機(jī)體是需要大批量生產(chǎn)的。為提高其加工精度和生產(chǎn)效率，需要設(shè)計(jì)一臺(tái)組合機(jī)床來改善柴油機(jī)機(jī)體的加工情況。本課題是針對(duì)TY295柴油機(jī)機(jī)體三面鉆孔組合機(jī)床總體及后主軸箱的設(shè)計(jì)，用于同時(shí)加工被加工零件左側(cè)面上的15個(gè) 孔，3個(gè) 孔；右側(cè)面上7個(gè) 孔，3個(gè) 孔，5個(gè) 孔；后面上的3個(gè) 孔，一個(gè) 孔，一次裝夾同時(shí)完成37個(gè)孔的加工。
在設(shè)計(jì)過程中，采用后面、左面、下面三面定位, 左面和后面用定位銷定位，下面用定位條定位。上面采用氣壓缸夾緊, 加工工藝性較好,零件裝夾方便。此次設(shè)計(jì)主要分為組合機(jī)床總體設(shè)計(jì)和后主軸箱設(shè)計(jì)兩大部分，在設(shè)計(jì)多軸箱時(shí),根據(jù)加工工序圖確定所需設(shè)計(jì)的組合機(jī)床上完成的工藝內(nèi)容，加工部位的尺寸、精度、表面粗糙度及技術(shù)要求，加工用的定位基準(zhǔn)、壓緊部位以及被加工零件的材料、硬度和在本機(jī)床加工前的加工余量。本組合機(jī)床成本低，加工精度高；操作使用方便，減輕了工人的勞動(dòng)強(qiáng)度并提高了生產(chǎn)效率。
關(guān)鍵詞：柴油機(jī)機(jī)體；主軸箱；三面鉆孔；組合機(jī)床


Design of General and Behind Headstock of Modular Machine Tool for Drilling Holes on Three-Side of TY295 Diesel Engine Block
Abstract: Due to the extensive use of TY295 diesel engine. It is a product which needs of mass production. In order to prove the disposition and the production efficiency, we need to design a high effective modular machine tool to improve the production of the TY295 diesel engine block. This issue is a design of TY295 engine block for drilling on three sides and behind the overall modular of machine tool spindle box. This used for cure the holes of three-side of TY295 diesel engine economy at one time, after face of fifteen holes with the diameter is 6.8, 3 holes with the diameter is 8.5; the right side surface of seven holes whit the diameter is 6.8, three holes with the diameter is 8.5, 5 holes whit the diameter is10.5; behind side surface of the 3-holes with the diameter is 12, a hole with the diameter is 14.
The modular machine tool uses the horizontal-type single location three-side processing plan, the processing and assembly technology capability is good, and it clamps conveniently. In the design process of jig, the work piece has been located by three surfaces - behind, left and underside. A pin has been used on the behind and left. Two orientation bars have been used on the underside. Use pneumatic cylinder to clamp the above and the right side. When designs the headstock, according to the figure processes determined must design on the modular machine-tool completes the technological content, the size of the processing site, the precision, the surface roughness and the specification, the processing uses the positioning the base, the compaction site as well as is processed the components the material, degree of hardness and before this engine bed processing machining allowance. The modular machine tool is with low cost, high processing precision and convenient operation which can release worker working intension and enhance manufacturing efficiency.
Key words: Engine Block；Headstock; Drill hole; Modular machine tool
目 錄
1 前言 1
2 總體設(shè)計(jì) 2
2.1 總體方案的論證 2
2.1.1 被加工零件的特點(diǎn) 2
2.1.2 工藝路線的確定 2
2.1.3 機(jī)床配置形式的選擇 2
2.1.4 定位基準(zhǔn)的選擇 3
2.1.5 滑臺(tái)形式的選擇 3
2.2 設(shè)計(jì)計(jì)算 3
2.2.1 切削速度、切削用量的確定 3
2.2.2 主軸直徑的確定 5
2.2.3 切削力、切削扭矩、切削功率的確定 5
2.2.4 動(dòng)力箱型號(hào)的選擇 8
2.2.6 主軸箱型號(hào)的選擇 9
2.3 繪制被加工零件工序圖 10
2.4 繪制加工示意圖 12
2.5 繪制機(jī)床聯(lián)系尺寸圖 14
2.6 生產(chǎn)率計(jì)算卡 16
2.6.1 理想生產(chǎn)率 16
2.6.2 實(shí)際生產(chǎn)率 17
2.6.3 負(fù)荷率計(jì)算 17
3 主軸箱的設(shè)計(jì) 18
3.1主軸箱的傳動(dòng)設(shè)計(jì) 18
3.2 對(duì)多軸箱傳動(dòng)系統(tǒng)的一般要求 18
3.3 擬定多軸箱傳動(dòng)系統(tǒng)的基本方法 19
3.4 繪制傳動(dòng)路線圖 19
3.5 齒輪模數(shù)的選擇 20
3.6 主軸箱坐標(biāo)計(jì)算 20
3.6.1 確定傳動(dòng)軸與過渡軸的位置及齒輪齒數(shù) 21
3.6.2 計(jì)算傳動(dòng)軸的坐標(biāo) 22
3.7 齒輪的校核 23
3.7.1 確定公式中各參數(shù)值 23
3.7.2 校核接觸疲勞強(qiáng)度 24
3.8 軸的強(qiáng)度校核 25
3.9 軸承的校核 27
4 結(jié)論 29
參考文獻(xiàn) 30
致謝 31
附 錄 32