汽車變速箱兩端面液壓雙頭組合銑床的設(shè)計(jì)
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- 汽車變速箱兩端面液壓雙頭組合銑床的設(shè)計(jì)
Auto gearbox two end hydraulic double
Combination of the milling machine desig
By
Linshengzhen
June 2010
摘 要
本課題設(shè)計(jì)一臺(tái)粗銑汽車變速箱兩端面液壓雙頭組合銑床,主要完成組合銑床的總體設(shè)計(jì)、主軸箱及設(shè)計(jì)及其液壓部分的設(shè)計(jì)。
根據(jù)汽車變速箱的結(jié)構(gòu)特點(diǎn)、加工部位、尺寸精度、表面粗糙度及生產(chǎn)率等要求,確定該機(jī)床為雙工位臥式組合機(jī)床;考慮工件尺寸精度,表面粗糙度,切屑的排除及生產(chǎn)率等因素,選用硬質(zhì)合金套式面銑刀;根據(jù)工件的尺寸、特點(diǎn)及其材料選擇切削用量;然后,再經(jīng)過(guò)切削用量來(lái)確定組合機(jī)床的通用部件;最后進(jìn)行組合機(jī)床的總體設(shè)計(jì)。由于是粗銑柴油機(jī)汽缸體兩端面,則夾具的設(shè)計(jì)采用“一面兩銷”定位, 液壓夾緊,一次裝夾加工柴油機(jī)汽缸體的兩個(gè)端面,保證了加工精度,提高了生產(chǎn)效率。
在設(shè)計(jì)之中,盡量選用通用件,減少了制造成本,增加了經(jīng)濟(jì)效益。通過(guò)本次設(shè)計(jì)可以達(dá)到效果是:所設(shè)計(jì)的組合銑床和夾具能滿足其工作狀態(tài)的質(zhì)量要求,使用時(shí)安全可靠,易于維修。
關(guān)鍵詞:組合銑床 汽車變速箱 銑刀 主軸箱
Abstract
This topic design a rough milling automobile gearbox two end milling machine, hydraulic double combination of main machine combination overall design, spindle box and design and the design of hydraulic parts.
According to the structure characteristics of the automobile gearbox, machining parts and precision and surface roughness and productivity, determine the machine for double-position horizontal combination machine tools . Considered to the factor of the size precision, surface roughness, scrap removes and productivity and so on of the work piece, selects the Hard alloy not grind type surface milling cutter. According to work piece size, characteristic and its material choice cutting specifications; Because of the thick mill diesel engine cylinder body two sides, then the jig design use "two sells the localization at the same time", Manual clamps, an attire clamps processes the diesel engine to be mad the cylinder body two sides; according to will work receives the cutting force to calculate clamps the strength; again according to clamps the strength , choose the determination clamp the special-purpose part.
During the design, the standard parts are selected as far as possible, to reduced the production cost, increased the economic efficiency. This design may achieve the effects as fowllows: the modular milling machine and the jig can satisfy its the quality requirement at working status,it’s safe, and easy to service.
Keyword: the modular milling machine Auto gearbox milling cutter main spindle
目 錄
摘 要 I
ABSTRACT II
1 引言 5
2 總體方案論證 5
2.1 被加工零件分析 5
2.2 工藝方案的制定 5
2.3 加工設(shè)備方案選擇 6
2.4 確定機(jī)床總體布局 6
3 切削用量的選擇及計(jì)算 8
3.1 切削刀具的選擇 8
3.2 切削用量的選擇 8
3.3 切削力、切削轉(zhuǎn)矩、切削功率的確定 9
4 組合機(jī)床總體設(shè)計(jì) 12
4.1 被加工零件工序圖 13
4.2 加工示意圖 14
4.3 機(jī)床聯(lián)系尺寸圖 15
4.3.1 動(dòng)力部件的選擇 15
4.3.2 滑臺(tái)及相配底座的選擇 15
4.3.3 確定機(jī)床的裝料高度H 16
4.4 機(jī)床生產(chǎn)率計(jì)算卡 16
4.4.1 理想生產(chǎn)率Q 16
4.4.2 實(shí)際生產(chǎn)率Q1 17
4.4.3 機(jī)床負(fù)荷率 ...