c620刀架和橫向進(jìn)給系統(tǒng)數(shù)控改造及結(jié)構(gòu)設(shè)計(jì).rar
c620刀架和橫向進(jìn)給系統(tǒng)數(shù)控改造及結(jié)構(gòu)設(shè)計(jì),此論文為本人畢業(yè)論文:c6120橫向進(jìn)給和刀架論文,內(nèi)部有詳細(xì)的cad圖紙和論文,此論文通過了論文答辯,答辯成績85分,希望有畢業(yè)的學(xué)生可以下載,并且放心使用c620刀架和橫向進(jìn)給系統(tǒng)數(shù)控改造及結(jié)構(gòu)設(shè)計(jì) 摘要:針對現(xiàn)有常規(guī)c620普通車床的缺點(diǎn)提出數(shù)控改裝方案,來提高加工精度和擴(kuò)大機(jī)床使用范圍,并提高生產(chǎn)率。本論文說明...
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原文檔由會員 545968147 發(fā)布此論文為本人畢業(yè)論文:C6120橫向進(jìn)給和刀架論文,內(nèi)部有詳細(xì)的CAD圖紙和論文,此論文通過了論文答辯,答辯成績85分,希望有畢業(yè)的學(xué)生可以下載,并且放心使用
C620刀架和橫向進(jìn)給系統(tǒng)數(shù)控改造及結(jié)構(gòu)設(shè)計(jì)
摘要:針對現(xiàn)有常規(guī)C620普通車床的缺點(diǎn)提出數(shù)控改裝方案,來提高加工精度和擴(kuò)大機(jī)床使用范圍,并提高生產(chǎn)率。本論文說明了普通車床的數(shù)控化改造的設(shè)計(jì)過程,較詳盡地介紹了C620機(jī)械改造部分的設(shè)計(jì)。數(shù)控系統(tǒng)為購買系統(tǒng),采用以8031為CPU的控制系統(tǒng)對信號進(jìn)行處理,由I/O接口輸出步進(jìn)脈沖,經(jīng)一級齒輪傳動減速后,帶動滾動絲杠轉(zhuǎn)動,從而實(shí)現(xiàn)縱向、橫向的進(jìn)給運(yùn)動和步進(jìn)電機(jī)驅(qū)動轉(zhuǎn)位。
改造過程如下:(1)C620車床主軸轉(zhuǎn)速部分保留原機(jī)床的手動變速功能,并在主軸后面安裝一個光電編碼器實(shí)現(xiàn)切削螺紋功能。(2)機(jī)械部分改造:包括刀架改造和橫向進(jìn)給方向的改造。主要包括對滾珠絲杠螺母副及反應(yīng)式步進(jìn)電機(jī)的計(jì)算選擇,橫向機(jī)構(gòu)裝配圖方案的制定,刀架換上自動回轉(zhuǎn)刀架。橫向進(jìn)給系統(tǒng)改造,將原來的普通絲桿換成滾珠絲杠在由步進(jìn)電機(jī)驅(qū)動,實(shí)現(xiàn)進(jìn)給運(yùn)動;刀架部分應(yīng)能實(shí)現(xiàn)自動換刀功能,將原來的刀架改為四方刀架自動回轉(zhuǎn)刀架,在由三相異步電動機(jī)驅(qū)動完成轉(zhuǎn)位。
關(guān)鍵詞:數(shù)控,單片機(jī),步進(jìn)電機(jī),滾珠絲杠,自動回轉(zhuǎn)刀架,改造
The C620 Lathe of Tool and CNC horizontal feed system reform and structural design
Abstract: In view of the existing C620 Conventional Lathe CNC conversion of the shortcomings of the program proposed to increase the machining accuracy and expand the scope of machine use, and increase productivity. This paper describes the general transformation of CNC lathe of the design process, a more detailed description of transformation of C620 part of the design of machinery. Numerical control system for the purchase of systems, the use of 8031 for the CPU of the control system signals are processed by the I / O interface stepper pulse output, with a gear reducer, the drive screw rotating roll in order to achieve the vertical, horizontal feed movement and the stepper motor-driven translocation.
Transformation process as follows: (1) C620 lathe spindle speed part of the manual machine tools to keep the speed function and the spindle behind the installation of a photoelectric encoder functions to achieve the cutting thread. (2) the mechanical parts of the transformation: the transformation including the turret and the horizontal direction of the transformation of feed. Mainly on the ball screw pair and the reaction of the calculated choice of stepper motor, a horizontal body assembly programs, automatic rotary tool turret replaced. Horizontal feed system will be replaced by the original ordinary screw ball screws driven by stepper motors to achieve the feed movement; tool should be able to achieve part of ATC functions, the tool will replace the original four-party tool Automatic rotary tool holder, in the three-phase asynchronous motor driven by the completion of translocation.
Keywords : CNC, single-chip microcomputer, stepper motor, ball screws, automatic rotary tool, the transformation
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目 錄
1.引 言 ………………………………………………………………………… (1)
2. 總體方案的設(shè)計(jì)
2.1 設(shè)計(jì)任務(wù) …………………………………………………………………(7)
2.2 總體方案的論證 …………………………………………………………(7)
2.2.1機(jī)械部分的改造設(shè)計(jì) …………………………………………………(9)
2.2.2伺服進(jìn)給系統(tǒng)的改造設(shè)計(jì) ……………………………………………(9)
2.2.3數(shù)控系統(tǒng)的硬件電路設(shè)計(jì) ……………………………………………(9)
2.3 總體方案的確定…………………………………………………………(10)
3. 機(jī)械部分的改造設(shè)計(jì)
3.1 橫向進(jìn)給系統(tǒng)的改造設(shè)計(jì) .……………………………………………(12)
3.1.1橫向滾珠絲杠副的選用 ………………………………………………(12)
3.1.2C620車床數(shù)控改造技術(shù)參數(shù) ………………………………………(12 )
3.1.3確定系統(tǒng)脈沖當(dāng)量 ……………………………………………………(13)
3.1.4車削力的計(jì)算 …………………………………………………………(13)
3.2 滾珠絲杠副的設(shè)計(jì)和計(jì)算和選型 ……………………………………(13)
3.2.1計(jì)算牽引力Fm ………………………………………………………(14)
3.2.2 滾珠絲桿平均轉(zhuǎn)速的計(jì)算……………………………………………(14)
3.2.3滾珠絲桿壽命的計(jì)算 ………………………………………………(15)
3.2.4滾珠絲桿承受的最大當(dāng)量載荷的計(jì)算………………………………(15)
3.2.5最大靜載荷 C?!?15)
3.2.6滾珠絲桿副選型及傳動效率 ………………………………………………(15)
3.2.7剛度驗(yàn)算 …………………………………………………………… (15)
4. 橫向步進(jìn)電機(jī)的選用
4.1 橫向步進(jìn)電機(jī)的選用 .…………………………………………………(18)
4.1.1脈沖量的選擇 …………………………………………………………(18)
4.1.2等效負(fù)載轉(zhuǎn)矩的計(jì)算 …………………………………………………(18)
4.1.3等效轉(zhuǎn)動慣量的計(jì)算 …………………………………………………(18)
4.1.4步進(jìn)電機(jī)力矩計(jì)算 ……………………………………………………(19)
4.1.5快速啟動力矩 …………………………………………………………(19)
4.1.6快速移動時所需要力矩M快 …………………………………………(19)
4.1.7 快速切削負(fù)載時所需要力矩M切 …………………………………(20)
4.2 步進(jìn)電機(jī)的驅(qū)動 ………………………………………………………(20)
4.2.1 環(huán)行脈沖分配器的選擇 ……………………………………………(20)
4.2.2 功率放大器的選用 …………………………………………………(20)
4.3 步進(jìn)電機(jī)的微機(jī)控制 ………………………………………………(21)
5. 齒輪傳動間隙的調(diào)整
5.1 偏心套(軸)調(diào)整法 …………………………………………………(23)
5.2 軸向墊片調(diào)整法 ………………………………………………………(23)
5.3 雙片齒輪錯齒調(diào)整法 …………………………………………(24)
6. 刀架改造
6.1 自動換刀裝置…………………………………………………………(26)
6.2 回轉(zhuǎn)刀架換刀…………………………………………………………(26)
6.2.1四方回轉(zhuǎn)刀架 ……………………………………………………… (26)
6.2.2四方刀架換刀過程 …………………………………………………(27)
結(jié) 論 …………………………………………………………………………(28)
參考文獻(xiàn) ………………………………………………………………………(29)
致 謝 …………………………………………………………………………(30)