車床尾座體機(jī)械加工工藝與工裝設(shè)計(jì)【粗、精銑槽49×10處】【鏜φ60H6孔】【說(shuō)明書+CAD】
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目 錄1. 緒 論12. 尾座體的工藝設(shè)計(jì)32.1 機(jī)械加工工藝規(guī)程概述32.1.1工藝規(guī)程的作用32.1.2制定工藝規(guī)程的原則32.1.3制訂工藝規(guī)程的步驟32.2 工藝分析42.2.1零件的技術(shù)條件42.2.2加工表面及其要求52.2.3零件的材料52.3 毛坯的選擇52.3.1毛坯的種類62.3.2毛坯選擇時(shí)應(yīng)考慮的因素62.3.3確定毛坯的類型及制造方法72.4 基準(zhǔn)的選擇82.5 機(jī)械加工工藝路線的擬訂92.5.1表面的加工方法的選擇92.5.2加工工藝路線的擬訂112.6 機(jī)械加工余量、工序尺寸及公差的確定132.7 選擇機(jī)床設(shè)備及工藝裝備143. 尾座體的工裝設(shè)計(jì)153.1 夾具概述153.1.1概述153.1.2定位方案及定位元件173.1.3夾緊裝置183.1.4定向鍵、對(duì)刀塊193.1.5夾具體203.1.6標(biāo)注尺寸和公差配合203.2 銑槽夾具設(shè)計(jì)213.2.1加工要求213.2.2銑床夾具的主要類型213.2.3定位方案的選擇223.2.4夾緊裝置的確定243.2.5定位鍵、定向鍵、對(duì)刀塊的確定253.2.6夾具體的確定263.2.7銑槽夾具的確定273.3 鏜模夾具設(shè)計(jì)293.3.1加工要求293.3.2鏜孔工具設(shè)計(jì)293.3.3定位方案及定位元件的設(shè)計(jì)303.3.4夾緊裝置的確定323.3.5底座和支架設(shè)計(jì)333.3.6鏜孔夾具的確定354 全文總結(jié)36 4.1 本文的主要工作36 4.2 畢業(yè)設(shè)計(jì)心得36參 考 文 獻(xiàn)37致 謝38 1 沖壓變形 沖壓變形工藝可完成多種工序,其基本工序可分為分離工序和變形工序兩 大類。 分離工序是使坯料的一部分與另一部分相互分離的工藝方法,主要有落料、 沖孔、切邊、剖切、修整等。其中有以沖孔、落料應(yīng)用最廣。變形工序是使坯 料的一部分相對(duì)另一部分產(chǎn)生位移而不破裂的工藝方法,主要有拉深、彎曲、 局部成形、脹形、翻邊、縮徑、校形、旋壓等。 從本質(zhì)上看,沖壓成形就是毛坯的變形區(qū)在外力的作用下產(chǎn)生相應(yīng)的塑性 變形,所以變形區(qū)的應(yīng)力狀態(tài)和變形性質(zhì)是決定沖壓成形性質(zhì)的基本因素。因 此,根據(jù)變形區(qū)應(yīng)力狀態(tài)和變形特點(diǎn)進(jìn)行的沖壓成形分類, 可以把成形性質(zhì)相 同的成形方法概括成同一個(gè)類型并進(jìn)行系統(tǒng)化的研究。 絕大多數(shù)沖壓成形時(shí)毛坯變形區(qū)均處于平面應(yīng)力狀態(tài)。通常認(rèn)為在板材表面上 不受外力的作用,即使有外力作用,其數(shù)值也是較小的,所以可以認(rèn)為垂直于 板面方向的應(yīng)力為零,使板材毛坯產(chǎn)生塑性變形的是作用于板面方向上相互垂 直的兩個(gè)主應(yīng)力。由于板厚較小,通常都近似地認(rèn)為這兩個(gè)主應(yīng)力在厚度方向 上是均勻分布的。基于這樣的分析,可以把各種形式?jīng)_壓成形中的毛坯變形區(qū) 的受力狀態(tài)與變形特點(diǎn),在平面應(yīng)力的應(yīng)力坐標(biāo)系中 (沖壓應(yīng)力圖 )與相應(yīng)的兩 向應(yīng)變坐標(biāo)系中 (沖壓應(yīng)變圖 )以應(yīng)力與 應(yīng)變坐標(biāo)決定的位置來(lái)表示。也就是說(shuō), 沖壓 應(yīng)力圖與沖壓應(yīng)變圖中的不同位置都代表著不同的受力情況與變形特點(diǎn) (1)沖壓毛坯變形區(qū)受兩向拉應(yīng)力作用時(shí),可以分為兩種情況:即 0 t=0 和 0, t=0。再這兩種情況下,絕對(duì)值最大的應(yīng)力都是拉應(yīng)力。以下 對(duì)這兩種情況進(jìn)行分析。 1)當(dāng) 0且 t=0時(shí),安全量理論可以寫出如下應(yīng)力與應(yīng)變的關(guān)系式: (1-1) /( - m) = /( - m) = t/( t - m) =k 式中 , , t 分 別 是 軸對(duì)稱沖壓 成 形時(shí) 的 徑向 主 應(yīng)變 、切向主 應(yīng) 變 和厚度方向上的主 應(yīng)變 ; , , t 分 別 是 軸對(duì)稱沖壓 成 形時(shí) 的 徑向 主 應(yīng) 力、切向主 應(yīng) 力和厚度 方向上的主 應(yīng) 力; m 平均 應(yīng) 力, m=( + + t) /3; k 常數(shù) 。在平面 應(yīng) 力 狀態(tài) ,式( 1 1)具有如下形式: 3 /( 2 - ) =3 /( 2 - t) =3 t/-( t+ ) =k ( 1 2) 因?yàn)?0,所以必定有 2 - 0 與 0。 這個(gè)結(jié) 果表明:在 兩向 2 拉應(yīng) 力的平面 應(yīng) 力 狀態(tài)時(shí) ,如果 絕對(duì) 值 最大 拉應(yīng) 力是 ,則在這個(gè)方向上的主 應(yīng)變一定是正應(yīng)變,即是伸長(zhǎng)變形。 又因?yàn)?0,所以必定有 -( t+ ) 0 與 t2 時(shí), = =0 。在雙向等拉力狀態(tài)時(shí), = ,有 式( 1 2)得 = 0 及 t 0 且 t=0 時(shí),有式( 1 2)可知:因?yàn)?0,所以 1) 定有 2 0 與 0。這個(gè)結(jié)果表明:對(duì)于兩向拉應(yīng)力的平面應(yīng)力狀 態(tài),當(dāng) 的絕對(duì)值最大時(shí),則在這個(gè)方向上的應(yīng)變一定時(shí)正的,即一定是 伸長(zhǎng)變形。 又因?yàn)?0,所以必定有 -( t+ ) 0 與 t , = =0 。當(dāng) = 時(shí), = 0, 也就是 在 雙向等拉 力 狀態(tài)下 ,在 兩個(gè)拉應(yīng) 力方向 上產(chǎn) 生 數(shù) 值相同的伸 長(zhǎng)變形 ;在受 單 向拉應(yīng) 力 狀態(tài)時(shí) , 當(dāng) =0 時(shí), =- /2,也就是說(shuō), 在受 單向拉應(yīng) 力 狀態(tài) 下 其 變形 性 質(zhì) 與一般的 簡(jiǎn)單 拉伸是完全一 樣 的 。 這種變形與受力情況,處于沖壓應(yīng)變圖中的 AOC 范圍內(nèi)(見(jiàn)圖 1 1);而 在沖壓應(yīng)力圖中則處于 AOH 范圍內(nèi)(見(jiàn)圖 1 2)。 上述兩種沖壓情況,僅在最大應(yīng)力的方向上不同,而兩個(gè)應(yīng)力的性質(zhì)以及 它們引起的變形都是一樣的。因此,對(duì)于各向同性的均質(zhì)材料,這兩種變形是 完全相同的。 (1)沖壓毛坯變形區(qū)受兩向壓應(yīng)力的作用,這種變形也分兩種情況分析,即 t=0 和 0, t=0。 1)當(dāng) 0 且 t=0 時(shí),有式( 1 2)可知:因 為 0,一定有 2 - 0 與 0。 這個(gè)結(jié) 果表明:在 兩向壓應(yīng) 力的平面 應(yīng) 力 狀態(tài)時(shí) ,如果 3 絕對(duì) 值最大 拉應(yīng) 力是 0,則在這個(gè)方向上的主應(yīng)變一定是負(fù)應(yīng)變,即是壓 縮變形。 又因?yàn)?0,即在板料厚度方 向上的 應(yīng)變 是正的,板料增厚。 在 方向上的變形取決于 與 的數(shù)值:當(dāng) =2 時(shí), =0;當(dāng) 2 時(shí), 0;當(dāng) 0。 這時(shí) 的變化范圍是 與 0 之間 。當(dāng) = 時(shí),是雙向等 壓 力狀態(tài) 時(shí),故有 = 0;當(dāng) =0 時(shí) ,是受 單 向 壓應(yīng) 力 狀態(tài) ,所以 =- /2。 這種變形情況處于沖壓應(yīng)變圖中的 EOG 范圍內(nèi)(見(jiàn)圖 1 1);而在沖壓應(yīng)力圖 中則處于 COD 范圍內(nèi)(見(jiàn)圖 1 2)。 2) 當(dāng) 0 且 t=0 時(shí),有式( 1 2)可知:因?yàn)?0,所以 一定有 2 0 與 0。這個(gè)結(jié)果表明:對(duì)于兩向 壓 應(yīng)力的平面應(yīng)力狀 態(tài),如果絕對(duì)值最大是 ,則在這個(gè)方向上的應(yīng)變一定時(shí)負(fù)的,即一定是壓 縮變形。 又因?yàn)?0,即在板料厚度方 向上的 應(yīng)變 是正的,即 為壓縮變形 ,板厚增大。 在 方向上的變形取決于 與 的數(shù)值:當(dāng) =2 時(shí), =0;當(dāng) 2 , 0;當(dāng) 0。 這時(shí), 的數(shù)值只能在 = 0, | |時(shí),由式( 1 2)可知:因 為 0, | |,所以一定 有 2 - 0 及 0。 這個(gè)結(jié) 果表明:在異 號(hào) 的 平面 應(yīng) 力 狀態(tài)時(shí) ,如果 絕對(duì) 值最大 應(yīng) 力是 拉應(yīng) 力 ,則在這個(gè)絕對(duì)值最大的拉應(yīng) 力方向上應(yīng)變一定是正應(yīng)變,即是伸長(zhǎng)變形。 又因?yàn)?0, | |,所以必定有 0 0, 0, | |時(shí),由式( 1 2)可知: 用與前 項(xiàng)相同的方法分析可得 0。 即在異 號(hào)應(yīng) 力作用的平面 應(yīng) 力 狀態(tài)下 ,如果 絕 對(duì) 值最大 應(yīng) 力是 拉應(yīng) 力 ,則在這個(gè)方向上的應(yīng)變是正的,是伸長(zhǎng)變形;而在 壓應(yīng)力 方向上的應(yīng)變是負(fù)的( 0, 0, 0, | |時(shí),由式( 1 2)可知:因 為 0, | |,所以一定有 2 - 0 及 0, 0 0, 0, | |時(shí),由式( 1 2)可知: 用與前 項(xiàng)相同的方法分析可得 0, 0, 0, 0 AON GOH + + 伸長(zhǎng)類 AOC AOH + + 伸長(zhǎng)類 雙向受壓 0, 0 | | LOM EOF 壓縮類 異號(hào)應(yīng)力 0, | | COD AOB + + 伸長(zhǎng)類 | | | | DOE BOC 壓縮類 7 變形區(qū)質(zhì)量問(wèn)題的表 現(xiàn)形式 變形程度過(guò)大引起變形區(qū) 產(chǎn)生破裂現(xiàn)象 壓力作用下失穩(wěn)起皺 成形極限 1 主要取決于板材的塑 性, 與厚度無(wú)關(guān) 2 可用伸長(zhǎng)率及成形極 限 DLF 判斷 1 主要取決于傳力區(qū)的 承載能力 2 取決于抗失穩(wěn)能力 3 與板厚有關(guān) 變形區(qū)板厚的變化 減薄 增厚 提高成形極限的方法 1 改善板材塑性 2 使變形均勻化,降低局 部變形程度 3 工序間熱處理 1 采用多道工序成形 2 改變傳力區(qū)與變形區(qū) 的力學(xué)關(guān)系 3 采用防起皺措施 伸 長(zhǎng) 類 成 形 脹 形 拉 深 翻 邊 壓 縮 類 成 形 壓 縮 類 成 形 擴(kuò) 口 拉 深 脹 形 伸 長(zhǎng) 類 成 形 縮 口 縮 口 擴(kuò)口 + - - + /4 /4 翻 邊 - + + - 圖 1 3 沖壓應(yīng)變圖 8 沖壓成形 極限 變形區(qū)的 成形極限 傳動(dòng)區(qū)的 成形極限 伸長(zhǎng)類 變 形 壓縮類 變 形 強(qiáng) 度 抗拉與抗壓 縮失衡能力 塑 性 抗縮頸 能 力 變形均 化與擴(kuò) 展能力 塑 性 抗起皺 能 力 變形力及 其 變 化 各向異性 值 硬化性能 變形抗力 化學(xué)成分 組 織 變形條件 硬化性能 應(yīng)力狀態(tài) 應(yīng)變梯度 硬化性能 模具狀態(tài) 力學(xué)性能 值與 值 相對(duì)厚度 化學(xué)成分 組 織 變形條件 圖 1 3 體系化研究方法舉例 9 Categories of stamping forming Many deformation processes can be done by stamping, the basic processes of the stamping can be divided into two kinds: cutting and forming. Cutting is a shearing process that one part of the blank is cut form the other .It mainly includes blanking, punching, trimming, parting and shaving, where punching and blanking are the most widely used. Forming is a process that one part of the blank has some displacement form the other. It mainly includes deep drawing, bending, local forming, bulging, flanging, necking, sizing and spinning. In substance, stamping forming is such that the plastic deformation occurs in the deformation zone of the stamping blank caused by the external force. The stress state and deformation characteristic of the deformation zone are the basic factors to decide the properties of the stamping forming. Based on the stress state and deformation characteristics of the deformation zone, the forming methods can be divided into several categories with the same forming properties and to be studied systematically. The deformation zone in almost all types of stamping forming is in the plane stress state. Usually there is no force or only small force applied on the blank surface. When it is assumed that the stress perpendicular to the blank surface equal to zero, two principal stresses perpendicular to each other and act on the blank surface produce the plastic deformation of the material. Due to the small thickness of the blank, it is assumed approximately that the two principal stresses distribute uniformly along the thickness direction. Based on this analysis, the stress state and 10 the deformation characteristics of the deformation zone in all kind of stamping forming can be denoted by the point in the coordinates of the plane princ ipal stress(diagram of the stamping stress) and the coordinates of the corresponding plane principal stains (diagram of the stamping strain). The different points in the figures of the stamping stress and strain possess different stress state and deformation characteristics. (1)When the deformation zone of the stamping blank is subjected toplanetensile stresses, it can be divided into two cases, that is 0,t=0and 0,t=0.In both cases, the stress with the maximum absolute value is always a tensile stress. These two cases are analyzed respectively as follows. 2)In the case that 0andt=0, according to the integral theory, the relationships between stresses and strains are: /( -m) =/( -m) =t/( t -m) =k 1.1 where, , , t are the principal strains of the radial, tangential and thickness directions of the axial symmetrical stamping forming; , and tare the principal stresses of the radial, tangential and thickness directions of the axial symmetrical stamping forming;m is the average stress,m=( +t) /3; k is a constant. In plane stress state, Equation 1.1 3/( 2-) =3/( 2-t) =3t/-( t+) =k 1.2 Since 0,so 2-0 and 0.It indicates that in plane stress state with two axial tensile stresses, if the tensile stress with the maximum absolute value is , the principal strain in this direction must be positive, that is, the deformation belongs 11 to tensile forming. In addition, because 0, therefore -( t+) 0 and t2,=0 . In the equibiaxial tensile stress state = , according to Equation 1.2,=0 and t 0 and t=0, according to Equation 1.2 , 2 0 and 0,This result shows that for the plane stress state with two tensile stresses, when the absoluste value of is the strain in this direction must be positive, that is, it must be in the state of tensile forming. Also because0, therefore -( t+) 0 and t,= =0 .When =,=0, that is, in equibiaxial tensile stress state, the tensile deformation with the same values occurs in the two tensile stress directions; when =0, =- /2, that is, in uniaxial tensile stress state, the deformation characteristic in this case is the same as that of the ordinary uniaxial tensile. This kind of deformation is in the region AON of the diagram of the stamping strain (see Fig.1.1), and in the region GOH of the diagram of the stamping stress (see Fig.1.2). Between above two cases of stamping deformation, the properties ofand, and the deformation caused by them are the same, only the direction of the maximum stress is different. These two deformations are same for isotropic homogeneous material. (1)When the deformation zone of stamping blank is subjected to two compressive stressesand(t=0), it can also be divided into two cases, which are 0,t=0 and 0,t=0. 1) When 0 and t=0, according to Equation 1.2, 2-0 與 =0.This result shows that in the plane stress state with two compressive stresses, if the stress with the maximum absolute value is 0, the strain in this direction must be negative, that is, in the state of compressive forming. Also because 0.The strain in the thickness direction of the blankt is positive, and the thickness increases. The deformation condition in the tangential direction depends on the values 13 of and .When =2,=0;when 2,0;and when 0. The range of is 0.When =,it is in equibiaxial tensile stress state, hence=0; when =0,it is in uniaxial tensile stress state, hence =-/2.This kind of deformation condition is in the region EOG of the diagram of the stamping strain (see Fig.1.1), and in the region COD of the diagram of the stamping stress (see Fig.1.2). 2) When 0and t=0, according to Equation 1.2,2- 0 and 0. This result shows that in the plane stress state with two compressive stresses, if the stress with the maximum absolute value is , the strain in this direction must be negative, that is, in the state of compressive forming. Also because0.The strain in the thickness direction of the blankt is positive, and the thickness increases. The deformation condition in the radial direction depends on the values of and . When =2, =0; when 2,0; and when 0. The range of is = 0, |, according to Equation 1.2, 2-0 and 0.This result shows that in the plane stress state with opposite signs, if the stress with the maximum absolute value is tensile, the strain in the maximum stress direction is positive, that is, in the state of tensile forming. Also because 0, |, therefore =-. When =-, then 0,0,0, |, according to Equation 1.2, by means of the same analysis mentioned above, 0, that is, the deformation zone is in the plane stress state with opposite signs. If the stress with the maximum absolute value is tensile stress , the strain in this direction is positive, that is, in the state of tensile forming. The strain in the radial direction is negative ( =-. When =-, then 0, 0, 0,|, according to Equation 1.2, 2- 0 and 0 and =-.When =-, then 0,0,0, |, according to Equation 1.2 and by means of the same analysis mentioned above,=-.When =-, then 0, 0, 0,0 AON GOH + + Tensile AOC AOH + + Tensile Biaxial compressive stress state 0,0 | LOM EOF Compress ive State of stress with opposite signs 0,| COD AOB + + Tensile | | DOE BOC Compress ive 20 Table 1.2 Comparison between tensile and compressive forming Item Tensile forming Compressive forming Representation of the quality problem in the deformation zone Fracture in the deformation zone due to excessive deformation Instability wrinkle caused by compressive stress Forming limit 3 Mainly depends on the plasticity of the material, and is irrelevant to the thickness 4 Can be estimated by extensibility or the forming limit DLF 4 Mainly depends on the loading capability in the force transferring zone 5 Depends on the anti-instability capability 6 Has certain relationship to the blank thickness Variation of the blank thickness in the deformation zone Thinning Thickening Methods to improve forming limit 4 Improve the plasticity of the material 5 Decrease local 4 Adopt multi-pass forming process 5 Change the mechanics 21 deformation, and increase deformation uniformity 6 Adopt an intermediate heat treatment process relationship between the force transferring and deformation zones 6 Adopt anti-wrinkle measures Fig.1.1 Diagram of stamping strain tensile forming bulging deep drawing flanging compressive forming compressive forming expanding deep drawing bulging tensile forming necking necking expanding + - - + /4 /4 flanging - + + - Fig.1.2 Diagram of stamping stress 22 Ten sile for ming Com pres sion for ming St re ngth Cap abil ity of an ti -w rinkle und er t he t ensi le and com pres sive st re sses Plasticity Cap abil ity of an ti -n ecking Def orma tion uniformit y an d ex te nsion ca pa bility Pl as ticity Cap abil ity of an ti -w rinkle Def orma tion for ce a nd i ts Ani sotr opy valu e of r Har deni ng c hara cter isti cs Deformation r es is ta nc e Che mist ry c ompo nent Str uctu re Deformation c on di ti on s Har deni ng c hara cter isti cs Sta te o f st ress Gradient of s tr ai n Har deni ng c hara cter isti cs Die sha pe Mechanical pr oe rt y The value of t he n a nd r Relative th ic kn es s Che mist ry c ompo nent Str uctu re Deformation c on di ti on s Fig.1.3 Examples for systematic research methods 畢業(yè)設(shè)計(jì)(論文)外文翻譯 題目 沖壓變形專 業(yè) 名 稱 機(jī)械設(shè)計(jì)制造及其自動(dòng)化班 級(jí) 學(xué) 號(hào) 078105130學(xué) 生 姓 名 曾羅軍指 導(dǎo) 教 師 賀紅林填 表 日 期 2011 年 3 月 1 日車床尾座體機(jī)加工工藝及工裝設(shè)計(jì)學(xué)生姓名: 曾羅軍 班級(jí):0781051指導(dǎo)老師:賀紅林 摘要:尾座體是車床上的重要的部件之一,是車床上用以支撐軸類零件車削加工和實(shí)施鉆孔的主要車床附件。本文針對(duì)某類給定的尾座體進(jìn)行了加工工藝與工裝的設(shè)計(jì),完成了以下工作:(1) 概述了尾座體的技術(shù)和現(xiàn)狀發(fā)展;(2) 對(duì)尾座體進(jìn)行了工藝分析,并提出了兩種方案進(jìn)行比較;(3) 編制了尾座體的工藝規(guī)程,完成了其工序卡的設(shè)計(jì);(4) 針對(duì)工藝中的某重要工序,設(shè)計(jì)完成了一套銑槽夾具和鏜孔夾具,包括定位元件,夾緊機(jī)構(gòu)、對(duì)刀塊、夾具體的設(shè)計(jì)并分析了定位誤差。關(guān)鍵詞:尾座體 工藝 工裝 設(shè)計(jì) 指導(dǎo)老師簽名:Lather tail the craft work of the bodypack a designStudent: ZengLuoJun Grade:0781051Supervisor: He Honglin Abstract: stalk spare parts, the car pares to process the main lather enclosure that drills a hole with implementation.This text aims at a certain the tail body giving certainly carried on to process the design that craft and work pack and completed once work:(1)All said a tail the technique and present condition development of the body;(2)Carried on craft analysis to the tail body, and put forward two kinds of projects to carry on a comparison;(3)Drew up a tail body of craft regulations, completed the design of its work preface card;(4)Aim at a craft in of some important work preface, designed to complete a set of Xian slot tongs, including fixed position component, clipped tight organization, to the knife piece, clip a concrete design and analyzed a fixed position error margin.Keywords: tailstock craft clamping designSignature of supervisor:畢業(yè)設(shè)計(jì)(論文)任務(wù)書I、畢業(yè)設(shè)計(jì)(論文)題目:車床尾座體機(jī)械加工工藝與工裝設(shè)計(jì)II、畢 業(yè)設(shè)計(jì)(論文)使用的原始資料(數(shù)據(jù))及設(shè)計(jì)技術(shù)要求:原始數(shù)據(jù):(1)機(jī)床尾座體零件工作圖;(2)生產(chǎn)綱領(lǐng):年產(chǎn)約500件;(3)零件材料:HT200。設(shè)計(jì)要求:(1)繪制機(jī)床尾座體零件工作圖;(2)編制尾座體加工工藝過(guò)程卡和工序卡;(3)針對(duì)工藝過(guò)程中某重要工序進(jìn)行夾具設(shè)計(jì),繪制夾具裝配圖;(4)設(shè)計(jì)尾座體夾具主要零件圖(至少2張);(5)撰寫畢業(yè)設(shè)計(jì)論文。III、畢 業(yè)設(shè)計(jì)(論文)工作內(nèi)容及完成時(shí)間:1. 查閱文獻(xiàn)資料,撰寫開(kāi)題報(bào)告 1周2. 相關(guān)外文文獻(xiàn)閱讀與翻譯(6000字符以上) 1周3. 繪制尾座體的零件工作圖 2周4. 尾座體工藝規(guī)程設(shè)計(jì) 1周5. 尾座體工序卡的編制 1周6 工裝夾具設(shè)計(jì) 2周7. 撰寫畢業(yè)論文 2周8. 畢業(yè)答辯 1周 、主 要參考資料:1倪森壽.機(jī)械制造工藝與裝備習(xí)題集和課程設(shè)計(jì)指導(dǎo)書. 北京:化學(xué)工業(yè)出版社,20032杜可可.機(jī)械制造技術(shù)基礎(chǔ)課程設(shè)計(jì)指導(dǎo). 北京:人民郵電出版社,20073吳拓. 機(jī)械制造技術(shù)基礎(chǔ). 北京:清華大學(xué)出版社,20074孫麗媛,雒運(yùn)強(qiáng),張嘉鈺. 機(jī)械制造工藝及專用夾具.北京:冶金工業(yè)出版社,20025蘭建設(shè). 機(jī)械制造工藝與夾具. 北京:機(jī)械工業(yè)出版社,20046鄒青. 機(jī)械制造技術(shù)基礎(chǔ)課程設(shè)計(jì)指導(dǎo)教程. 北京機(jī)械工業(yè)出版社,20047馬賢智. 實(shí)用機(jī)械加工手冊(cè). 沈陽(yáng):遼寧科技出版禧,2002 8 Machine Tools N.chernor 1984. 航空工程系 學(xué)院 機(jī)械設(shè)計(jì)制造及其自動(dòng)化 專業(yè) 0781051 班學(xué)生(簽名): 曾羅軍 日期: 自 2011 年 3月 1 日至 2011 年 6 月 2 日指導(dǎo)教師(簽名): 助理指導(dǎo)教師(并指出所負(fù)責(zé)的部分): 機(jī)械設(shè)計(jì) 系(室) 主任(簽名): 學(xué)士學(xué)位論文原創(chuàng)性聲明本人聲明,所呈交的論文是本人在導(dǎo)師的指導(dǎo)下獨(dú)立完成的研究成果。除了文中特別加以標(biāo)注引用的內(nèi)容外,本論文不包含法律意義上已屬于他人的任何形式的研究成果,也不包含本人已用于其他學(xué)位申請(qǐng)的論文或成果。對(duì)本文的研究作出重要貢獻(xiàn)的個(gè)人和集體,均已在文中以明確方式表明。本人完全意識(shí)到本聲明的法律后果由本人承擔(dān)。作者簽名: 日期:學(xué)位論文版權(quán)使用授權(quán)書本學(xué)位論文作者完全了解學(xué)校有關(guān)保留、使用學(xué)位論文的規(guī)定,同意學(xué)校保留并向國(guó)家有關(guān)部門或機(jī)構(gòu)送交論文的復(fù)印件和電子版,允許論文被查閱和借閱。本人授權(quán)南昌航空大學(xué)科技學(xué)院可以將本論文的全部或部分內(nèi)容編入有關(guān)數(shù)據(jù)庫(kù)進(jìn)行檢索,可以采用影印、縮印或掃描等復(fù)制手段保存和匯編本學(xué)位論文。 作者簽名: 日期:導(dǎo)師簽名: 日期:
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