摘要

銑削動力頭是機床加工的重要部件，銑削頭由銑削主軸和動力機構兩部件組成。銑削頭可以配置兩種傳動裝置，即齒輪裝置和皮帶裝置，在此設計中，為了減少整個銑削頭的重量和簡化結構采用齒輪傳動，由于銑削是不連續(xù)的，而且在一定的銑削寬度上同時銑削的刀齒是變化的，因而會引起震動，這是銑削的最大特點，因此，在銑削頭的結構上，必須使主軸和主軸箱等具有足夠的強度，并要求適當提高傳動系統(tǒng)的傳動平穩(wěn)性，主軸部件結構直接影響銑削頭的精度，剛度以及熱變性。這個設計主要論述了關于銑削動力頭的設計過程，包括方案論述、電機選擇、參數(shù)設計、傳動方案的選取、材料選擇、液壓滑臺的設計計算等內容。設計以動力頭的轉速和進給速度作為標準，結合現(xiàn)有的機床動力頭和零件進行設計的，使設計的銑削動力頭盡量達到實用化，合理化。根據(jù)設計要求，主銑削頭速度可調，由于設計中齒輪是一級齒輪，考慮到傳遞的扭矩和功率較小，所以采用變速三相異步電動機，用變速三項異步電動機驅動。切削進給采用液壓滑臺，滑臺軌道采用直線性軌道，使整個銑削頭在水平方向上沿導軌運動。從而完成銑削加工 。


關鍵詞：銑削頭，液壓滑臺，電動機，主軸
















ABSTRACT

Milling head is the important parts of milling machine processing, milling head composed of two parts by milling spindle and dynamic institution. Milling head can configure the two drives installation, the devices is gear and belt devices, in this design, in order to reduce the weight of the milling head and a drive to simplify the structure used gear, so the milling is not continuous, but in some milling , milling tooth is changing on the width of the knife at the same time, which will cause shock. That is the biggest characteristic of milling. Therefore, the structure of the milling head must improve spindle and spindle box have sufficient strength, requested to increase the smooth transmission of the transmission system , structural components of spindle direct influence on the accuracy of the milling head , stiffness and thermal denaturation. This design main discuss on the milling head of the design process, Including on the expositions of programme, motor selection, design parameters of spindle, the drive for selection, choice of material, hydraulic slider calculation of the design elements. According to the speed and power head feed rate as a standard designed，combine the existing power head of machine tools and parts for the first dynamic design, the design of the first milling head s far as possible to practical use and rationalize. According to the design requirements, the main milling head adjustable rate, due to the design of gear is stair gear, taking into account the torque and power transmission smaller, so use a three-phase asynchronous motor speed, with three speed asynchronous motor drive. Cutting feed use of hydraulic slipway, guides use of a linear track, so that the whole milling head in the direction of movement along the guides. Thus completing milling.


Keywords：Milling head，Hydraulic slipway，Motor，Spindle




目 錄

中文摘要 Ⅰ
ABSTRACT Ⅱ
1緒論 1
1.1 銑削動力頭的發(fā)展現(xiàn)狀 1
1.2本設計的目的和意義 2
2 總體方案設計 3
2.1動力機方案設計 3
2.2傳動機構方案設計 3
2.3主軸方案設計 3
2.4滑臺機構方案設計 3
2.4.1滑臺機構運動類型的選擇 3
2.4.2液壓缸的方案設計 4
3電動機的分類與選擇 5
3.1電動機分類 5
3.2電動機的選擇 8
4主軸設計計算 9
4.1傳動齒輪的計算 9
4.1.1確定傳動比 9
4.1.2傳動裝置的運動及參數(shù)計算 9
4.1.3主軸的計算 11
4.2主軸部件結構設計 12
4.3主軸部件要求 13
4.4主軸的布局 15
5動力滑臺的設計 16
5.1滑臺傳動方式的比較和選取 16
5.2滑臺體參數(shù)確定 17
5.2.1液壓滑臺主要技術性能的確定 17
5.2.2滑臺液壓缸的設計計算 17
5.3液壓滑臺工作循環(huán) 20
5.4液壓滑臺的結構 22
5.5液壓滑臺的導軌設計 23
5.5.1導軌的作用和要求 23
5.5.2導軌的結構設計 23
5.5.3選擇材料選擇 25
總結 26
參考文獻 27