畢業(yè)設(shè)計：JM304B變速箱箱體鉆孔組合機床總體及右主軸箱設(shè)計
論文說明書共36頁，字?jǐn)?shù)總計：14238
資料簡介：
文獻資料
開題報告.doc
畢業(yè)設(shè)計任務(wù)書.doc
外文翻譯.doc
外文翻譯.pdf
摘要.doc
畢業(yè)設(shè)計說明書：JM304B變速箱箱體鉆孔組合機床總體及右主軸箱設(shè)計.doc
說明書封面.doc
A0-加工示意圖.dwg
生產(chǎn)率計算卡.doc
A0-機床尺寸聯(lián)系圖.dwg
A0-工序圖-變速箱箱體.dwg
A0-后蓋.dwg
A0-前蓋.dwg
A0-右主軸箱箱體.dwg
A3-主軸.dwg
A2-上蓋.dwg
A1-干涉檢查圖.dwg
A3-傳動軸.dwg
A0-右主軸箱裝配圖.dwg
JM304B變速箱箱體三面鉆孔組合機床總體及右主軸箱設(shè)計
摘 要：JM304B變速箱是需要大量生產(chǎn)的零件。為了提高加工精度和生產(chǎn)效率，需要設(shè)計一臺組合機床來改善汽車變速箱的加工情況。本課題設(shè)計的是汽車變速箱箱體三面鉆孔組合機床。
用于加工被加工零件左、右、后三個面上的26個M10的螺紋底孔、一個M14的螺紋底孔、三個?8的光孔和一個M30的螺紋底孔。一次裝夾同時完成30個孔的加工。
該機床設(shè)計的重點是總體設(shè)計和部件設(shè)計兩部分?？傮w設(shè)計包括機床配置型式的確定、結(jié)構(gòu)方案的選擇和三圖一卡的繪制。部件設(shè)計包括繪制主軸箱設(shè)計原始依據(jù)圖、確定主軸和齒輪完成動力計算、設(shè)計傳動系統(tǒng)。機床采用臥式單工位三面加工的方案，加工和裝配的工藝性好，零件裝夾方便。采用機械滑臺實現(xiàn)刀具進給，借助導(dǎo)套引導(dǎo)刀具實現(xiàn)精度穩(wěn)定的加工。主軸采用標(biāo)準(zhǔn)主軸。本組合機床效率高，成本低，加工精度高，使用方便，減輕了工人的勞動強度，提高勞動生產(chǎn)率。

關(guān)鍵詞：變速箱；鉆孔；組合機床；主軸箱


Design of General and Right Headstock of Modular Machine Tool for Drilling Holes on Three-Side of JM304B Gear Box
Abstract: JM304B gear box is a product which needs mass production. In order to prove the disposition and the production efficiency, need to design a high effective modular machine tool to improve the production of the truck gear box.
It is used in processing 26 holes on the left, right and the back surface. Concrete processing content is that 26 holes when processing the 10 threads on the left, right and the back surface. One hole of the location tolerance when processing the 14 threads. 3 holes of the location tolerance of 8-diameter when processing the 30 threads，processing 30-hole at the same time.
The main task of this topic is the overall design and the right headstock design. The overall design includes determing the type of machine configuration, selecting the structure plan and completing the technological drawing of the part which need to be manufactured, the overall drawing of modular machine tool, drawing of cutter display and the efficiency card of manufacture. The right headstock design including drawing the primitive basic chart for the gear box, determine the spindle and the gears, completing the power computation, designing the transmission system. The modular machine tool uses the horizontal-type single location three-side processing plan, with good processing and assembly technology capability, it clamps conveniently. Using mechanical sliding unit, with the aid of precisely leads, the set of guidance cutting tool can complete the dispositional process. The spindle uses standard spindle. This modular mechanical tool has such advantages that are high efficiency, low cost, high processing precision, operating easily, it reduces the worker’s labor intensity, and enhances the productivity
Key words: gear box; drill hole; modular machine tool; headstock.

目 錄
1 前 言 2
2 組合機床總體設(shè)計 4
2.1 總體方案論證 4
2.1.1 被加工零件的特點 4
2.1.2 工藝路線的確立 4
2.2 組合機床總體方案論證 5
2.3 定位基準(zhǔn)選擇 5
3 設(shè)計計算 6
3.1 刀具的選擇 6
3.2 切削用量選擇 6
3.3 計算切削力、切削扭矩、切削功率 9
3.4 確定主軸加工尺寸和外伸尺寸 13
3.5 選擇接桿 13
3.6 導(dǎo)向結(jié)構(gòu)選擇 14
3.7 主軸箱輪廓尺寸的確定 14
3.8 組合機床總體設(shè)計-三圖一卡 15
3.8.1 被加工零件工序圖 15
3.8.2 加工示意圖 15
3.8.3 機床尺寸聯(lián)系圖 15
3.8.4 機床生產(chǎn)率計算卡 16
4．組合機床總體設(shè)計 18
4.1 右主軸箱設(shè)計原始依據(jù)圖 18
4.2 主軸、齒輪的確定及動力計算 19
4.2.1 主軸結(jié)構(gòu)形式的選擇 19
4.2.2 直徑、齒輪模數(shù)的確定 19
4.2.3 主軸箱的動力計算 19
4.3 主軸傳動系統(tǒng)的設(shè)計和計算 20
4.3.1 驅(qū)動軸、主軸的坐標(biāo)計算 20
4.3.2 確定傳動軸位置和齒輪齒數(shù) 20
4.4 右主軸箱坐標(biāo)計算、繪制坐標(biāo)檢查圖 24
4.4.1 選擇加工基準(zhǔn)軸坐標(biāo)、計算主軸、驅(qū)動軸坐標(biāo) 24
4.4.2 繪制坐標(biāo)檢查圖 24
4.5強度校核 25
4.6 傳動軸直徑的確定和軸的強度校核 28
5 主軸箱及其附件的選擇和設(shè)計 32
6 結(jié)論 33
參考文獻 34
致 謝 35
附 錄 36