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機(jī)械畢業(yè)設(shè)計(jì)1721自動(dòng)攻絲機(jī)說明書-展示頁

2024-12-12 13:27本頁面
  

【正文】 常見的自動(dòng)攻絲機(jī)實(shí)例主要部分來說明。 攻絲機(jī)的介紹 攻絲機(jī)是一種攻制螺紋時(shí)用的專用機(jī)械 。因此,研制 自動(dòng)攻絲機(jī), 提高攻絲加工的效率和精度具有比較重要的意義。雖然在不少工作現(xiàn)場人們也能 用鉆床來達(dá)到攻絲的目的,但無不存在過程繁瑣、質(zhì)量 不高、易出事故等弊端 。 Main drive;worm gear system 目 錄 摘要 .............................................................................................................. I Abstract ....................................................................................................... II 第 1 章 緒 論 .......................................................................................... 1 攻絲機(jī)的介紹 ........................................................................................................ 1 攻絲機(jī)的分類 ........................................................................................................ 2 氣動(dòng)攻絲機(jī) .................................................................................................... 2 液壓攻絲機(jī) .................................................................................................... 3 電動(dòng)攻絲機(jī) .................................................................................................... 4 第 2 章 總體方案設(shè)計(jì) ........................................................................... 11 主傳動(dòng)方案設(shè)計(jì) .................................................................................................. 11 絲錐驅(qū)動(dòng)系統(tǒng)的方案設(shè)計(jì) .................................................................................. 12 機(jī)架總體布局設(shè)計(jì) .............................................................................................. 15 本章小結(jié) .............................................................................................................. 16 第 3 章 零部件 的選擇及校核 .................................................................. 17 電動(dòng)機(jī)的選擇 .................................................................................................... 17 主傳動(dòng)系統(tǒng)設(shè)計(jì)計(jì)算 ........................................................................................ 17 皮帶輪的設(shè)計(jì) .............................................................................................. 18 第一對(duì)齒輪的設(shè)計(jì)計(jì)算 .............................................................................. 19 進(jìn)給運(yùn)動(dòng)傳動(dòng)機(jī)構(gòu)的計(jì)算 ................................................................................ 23 掛輪的尺寸及模數(shù)的取定 .......................................................................... 23 蝸輪蝸桿的設(shè)計(jì)計(jì)算 .................................................................................. 24 齒輪齒條的設(shè)計(jì)計(jì)算 .................................................................................... 27 軸的校核和軸承的校核 ...................................................................................... 30 軸 1校核計(jì)算 .............................................................................................. 30 軸 4 的校核計(jì)算 ......................................................................................... 34 軸承校核 ...................................................................................................... 37 本章小結(jié) .............................................................................................................. 38 結(jié)論 ............................................................................................................ 39 參考文獻(xiàn) ..................................................................................................... 40 致謝 ............................................................................................................ 41 附錄 ? ?? ????????????????????????? ??? ?? 42 1 第 1章 緒 論 螺紋加工在機(jī)器制造中占有重要地位,而對(duì)于小尺寸的內(nèi)螺紋,攻絲幾乎是唯一有效的加工方法。 關(guān)鍵詞 : 自動(dòng)攻絲 ; 齒輪齒條機(jī)構(gòu) ;絲錐進(jìn)給機(jī)構(gòu); 主傳動(dòng)系統(tǒng) ; 蝸輪蝸桿機(jī)構(gòu) II ABSTRACT This design task is the design of automatic tapping machines. Automatic tapping machine generally by the main drive, tap drive system, chassis ponents and platforms The tapping machine mainly has three drive modes: gas pressure drive, hydraulic pressure drive, motor drive. Gas motor works on high speed, but on little torsion force. Gas drive tapping machine has high productivity, easy operation, but it do not suit large diameter inside thread because of shortage torsion force. Hydraulic driving tapping machine, with high tapping speed and easy operation, suits to tap big blank, because of enough torsion force. Motor drive tapping machine39。選電機(jī)傳動(dòng)為本機(jī)的最終方案,加上立式機(jī)架。電機(jī)驅(qū)動(dòng)攻絲機(jī)通過電動(dòng)機(jī)和傳動(dòng)方案的不同可以調(diào)節(jié)扭力和轉(zhuǎn)速的輸出。氣動(dòng)攻絲機(jī)效率高,操作方便,但是由于扭力小對(duì)大直徑的內(nèi)螺紋能力不足。 攻絲機(jī)主要有三種驅(qū)動(dòng)方式:氣壓驅(qū)動(dòng),液壓驅(qū)動(dòng),電機(jī)驅(qū)動(dòng)。 I 摘 要 本次設(shè)計(jì)的任務(wù)是自動(dòng)攻絲機(jī)的設(shè)計(jì)。自動(dòng)攻絲機(jī)一般由主傳動(dòng)系統(tǒng),絲錐驅(qū)動(dòng)系統(tǒng),機(jī)架和工作臺(tái)等部分組成。氣動(dòng)馬達(dá)轉(zhuǎn)速高,扭力小。液壓驅(qū)動(dòng)式攻絲機(jī)輸出扭力大、攻絲速度快、操作方便、適用于加工大工件,攻牙多,尺寸大的模板和機(jī)床部件。能同時(shí)滿足小直徑的內(nèi)螺紋加工和大直徑內(nèi)螺紋的加工,傳動(dòng)穩(wěn)定,生產(chǎn)技術(shù)成熟,在攻絲機(jī)領(lǐng)域 依然占有很重要的地位。 在確定傳動(dòng)方案之后, 本設(shè)計(jì) 根據(jù)攻絲的最大直徑及行程,設(shè)計(jì)計(jì)算主傳動(dòng)齒輪及絲錐進(jìn)給機(jī)構(gòu)的蝸桿蝸輪和齒輪齒條機(jī)構(gòu),然后設(shè)計(jì)校核軸和軸承。s speed and torsion force is adjustable, using different electromotor and transmission way. It can content the requirement both of large diameter inside thread and small diameter inside thread. It still takes an important part of the tapping machine area, because of firm transmission and thorough skill. So I choose motor drive to my final scheme with vertical rack. After the determination of the transmission scheme, it have designed and calculated the main drive gears and the worm gear system and rack and pinion system of the tap feeding system recording to the tapping maximum diameter and travelling length. Then, I have designed and checked shafts and bearings. Keywords: Automatic tapping; Gear rack mechanism; tap feeding system。 攻絲是機(jī)械零部件制造、安裝及整機(jī)裝 配過程中必不可少的一個(gè)步驟。 隨著加工中心的出現(xiàn),數(shù)字化的高速車、銑、鉆孔等的加工效率大幅度的提高,而攻絲加工的方式和技術(shù)沒有突破,攻絲加工更加成為機(jī)械加工中的瓶頸。本課題的設(shè)計(jì)目的是 完成一臺(tái)自動(dòng)攻絲機(jī)的整體設(shè)計(jì),實(shí)現(xiàn)最大直徑為 10mm的內(nèi)螺紋攻絲自動(dòng)加工 。攻絲機(jī)一般由主傳動(dòng)系統(tǒng),絲錐驅(qū)動(dòng) 系統(tǒng),機(jī)架和工作臺(tái)等部分組成。 攻絲機(jī)工作時(shí)帶動(dòng)攻牙器旋轉(zhuǎn),再將攻牙器上所夾持的絲錐對(duì)準(zhǔn)并頂入預(yù)先制好的底孔中,底孔的孔壁上就被攻出螺紋而成為螺孔。所攻制螺紋的螺距由牙桿與牙桿螺母的螺紋螺距決定。 氣動(dòng)攻絲機(jī) 氣動(dòng)攻絲機(jī)是用 氣 缸的伸縮來代替手工操作控制絲錐的進(jìn)給和退出的自動(dòng)攻絲
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