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摘要
主軸箱在整個機床中屬于相對重要部件,通過其內部的齒輪傳動可以實現(xiàn)多級變速,從而人們需要的速度可以從最后傳到主軸的速度的到。通常主軸箱傳動系統(tǒng)的性能直接影響機床的性能。
本設計介紹普通機床中CA6140主軸的設計過程,文章先簡要介紹了車床的發(fā)展歷史和現(xiàn)狀,分析了主軸箱中各個重要部件結構原理和其在做主軸箱里的作用。詳細介紹了CA6140里的齒輪、軸、主軸和軸承等零件的整個設計過程。具體內容包括選取滿足要求相應的功率電機和各個零件的整體結構設計,其中包括材料的定選尺寸的合理安排以及加工需求。對于軸和齒輪零件運用的有關公式,進行合理的分析對相對較危險的部位進行作圖、計算和查表,進行各種校核。最終對各個零部件進行參數(shù)擬定、傳動設計、傳動件的估算和驗算、各部件結構設計,繪制零件圖和裝配圖。
CA6140機床是典型的車削加工機床,其中主軸箱是機床組成的核心部件,主軸箱的作用是將電動機的運動傳遞到主軸上,實現(xiàn)車削回轉運動。本次論文設計主要包括傳動方案及傳動系統(tǒng)圖的擬定,包含轉速的設計、結構式的確定及工藝范圍;各軸傳遞功率及力矩的計算;主要部件的設計及校核;主軸箱的主要部件主要包括箱體、傳動軸、齒輪及帶輪。最終確定主軸箱的整體結構設計。
關鍵詞: 主軸箱; 結構設計; 軸
Abstract
Throughout the machine tool spindle box is a relatively important component through its internal gears can achieve multi-speed, the speed of which people need to be reached from the last to the spindle speed. Typically headstock drive performance directly affects the performance of the machine.
This design introduces ordinary machine tool spindle CA6140 design process, the article briefly describes the history and current status of the lathe analyzed headstock various important parts of the structure principle and its role in doing the spindle box. Details of the CA6140 in the gears, shafts, spindles and bearings and other parts of the entire design process. Specific content includes selected meet the requirements of the corresponding power motors and various parts of the overall structural design, including materials, given the reasonable arrangement and size selection processing needs. For shaft and gear parts using the relevant formula, a reasonable analysis relatively dangerous parts of the mapping, calculation and look-up table, a variety of checking. Parameters for the various parts of the final formulation, transmission design, transmission parts estimating and checking each component structural design, drawing parts and assembly drawings.
CA6140?lathe?is?a?typical?turning?processing?machine?tools,?including?spindle?box?is?core?
component?of?machine?tool,?is?the?role?of?the?spindle?box?is?passed?on?to?the?main?spindle?motor?movement,?turning?rotary?movement.?This?paper?mainly?includes?the?transmission?scheme?and?system?design?of?proposed,?including?the?design?of?the?speed,?the?determination?of?structural?formula?and?process;?The?calculation?of?each?shaft?transmission?power?and?torque.?The?design?of?main?parts?and?check;?A?major?part?of?the?spindle?box?mainly?includes?box,?transmission?shaft,?gear?and?pulleys.?Eventually?determine?the?overall?structure?of?the?spindle?box?design.
Keywords: Headstock; structural design; axis
沈陽化工大學科亞學院學士學位論文 致謝
目 錄
第一章緒論 1
1.1 普通車床發(fā)展史 1
1.2 發(fā)展趨勢 3
第二章CA6140主軸箱工作原理 4
2.1機床的結構 4
2.2 主軸箱的主要構造 6
第三章傳動方案擬定和總體布局 9
3.1 變速組和傳動副數(shù)的確定 9
3.2 傳動比的分配 10
第四章各個零部件的選定 12
4.1 確定主軸的極限轉速 12
4.2 電機的選擇 12
4.2.1 計算轉速范圍和定公比并選出各級轉速 12
4.2.2 電機選擇 13
4.3 帶輪直徑和齒輪齒數(shù)的確定 13
4.3.1 確定皮帶輪直徑 13
4.3.2 齒輪齒數(shù)的確定 14
4.3.3 計算各軸傳動的功率 17
4.4 主軸箱的傳動系統(tǒng) 18
第五章各零部件校核驗算 19
5.1 各軸驗算轉速誤差 19
5.2 V帶的設計校核 19
5.3 I軸上的零部件設計 21
5.3.1 I軸上的齒輪設計 21
5.3.2 I軸的設計校核 25
5.3.3 軸承的校核和鍵的選擇 27
5.5 II軸上的齒輪設計 29
5.5.1 II軸上的齒輪設計 29
5.5.2 II軸選軸、鍵和軸承的選擇 33
5.6 III軸上的個部件設計 34
5.6.1 III軸上的齒輪設計 34
5.6.2 III軸選軸、鍵和軸承的選擇 38
5.7 IV軸主軸的選取 39
5.8主軸箱的裝配圖及箱體的設計 41
結論 43
參考文獻 44
致謝 45