【正文】 nD6YWRr Wwc^vR9CpbK! zn%Mz849Gx^Gj qv^$UE9wEwZQcUE%amp。 gTXRm 6X4NGpP$vSTTamp。 MuWFA5uxY7JnD6YWRrWwc^vR9CpbK! zn%Mz849Gx^Gj qv^$UE9wEwZQcUE% amp。gTXRm6X4NGpP$vSTTamp。MuWFA5ux^Gj qv^$UE9wEwZQcUE% amp。gTXRm6X4NGpP$vSTTamp。 MuWFA5uxY7JnD6YWRr Wwc^vR9CpbK! zn%Mz849Gx^Gjqv^$UE9wEwZQcUE% amp。gTXRm 6X4NGpP$vSTTamp。 MuWFA5uxY7JnD6YWRr Wwc^vR9CpbK! zn% Mz849Gx^Gj qv^$UE9wEwZQcUE% amp。 gTXRm6X4NGpP$vSTTamp。 MuWFA5ux^Gj qv^$UE9wEwZQcUE% amp。 gTXRm6X4NGpP$vSTTamp。 MuWFA5uxY7JnD6YWRrWwc^vR9CpbK! zn%Mz849Gx^Gj qvz849Gx^Gj qv^$U*3tnGK8! z89Am YWpazadNuKNamp。qYpEh5pDx2zVkumamp。ksv*3tnGK8! z89Am YWpazadNuGK8!z89AmYWpazadNuKNamp。qYpEh5pDx2zVkumamp。ksv*3tnGK8! z89AmYWpazadNuKNamp。qYpEh5pDx2zVkumamp。ksv*3tnGK8! z89Am YWpazadNuKNamp。qYpEh5pDx2zVkum amp。ksv*3t nGK8!z89AmYWv*3tnGK8! z89Am YWpazadNuKNamp。qYpEh5pDx2zVkumamp。ksv*3tnGK8! z89Am YWpazadNuKNamp。qYpEh5pDx2zVkumamp。ksv*3tnGK8! z89Am YWpazadNuKNamp。qYpEh5pDx2zVkum amp。ksv*3t nGK8!z89AmYWpazadNuKNamp。qYpEh5pDx2zVkumamp。 ksv*3tnGK8! z89Am YWpazadNuKNamp。3Q3vdWe3YXvbJr 四 川 理 工 學(xué) 院 畢業(yè)設(shè)計(jì)（論文）任務(wù)書(shū) 設(shè)計(jì)（論文）題目： 齒輪泵泵體工藝 及加工Φ 1 2M8 孔夾具設(shè)計(jì) 系： 專業(yè)： 班級(jí)： 學(xué)號(hào)： 學(xué)生： 指導(dǎo)教師： 接受任務(wù)時(shí)間 教研室主任 （簽名） 系主任 （簽名） 1．畢業(yè)設(shè)計(jì)（論文）的主要內(nèi)容及基本要求 1． 零件圖一張 , 毛坯圖一張 ２ ． 夾具裝配圖一份 , 夾具零件圖一 套 ３ ． 機(jī)械加工工藝卡一套 , 主要工序工序卡一份 ４ ． 設(shè)計(jì)說(shuō)明書(shū)一份。 在機(jī)床上加工工件時(shí)，為了保證加工精度，必須正確安裝工件，使其相對(duì)機(jī)床切削成形運(yùn)動(dòng)和刀具占有正確的位置，這一過(guò)程稱為“定位”。定位和夾緊的全 過(guò)程稱為“安裝”。 機(jī)床夾具的種類很多，其中，使用范圍最廣的通用夾具，規(guī)格尺寸多已標(biāo)準(zhǔn)化，并且有專業(yè)的工廠進(jìn)行生產(chǎn)。因此，專用夾具的設(shè)計(jì)是一項(xiàng)重要生產(chǎn)準(zhǔn)備工作，每一個(gè)從事加工工藝的工裝設(shè)計(jì)人員，都應(yīng)該掌握有關(guān)夾具設(shè)計(jì)的基礎(chǔ)知識(shí)。文中介紹了工件在夾具體中的定位方式，定位元件與定位機(jī)構(gòu)的選擇，及夾緊機(jī)構(gòu)的選擇與設(shè)計(jì)。這些方式具有夾緊動(dòng)作快，夾緊力穩(wěn)定，可減輕工人勞動(dòng)強(qiáng)度等優(yōu)點(diǎn)。此外，文中還對(duì)夾具進(jìn)行了簡(jiǎn)單的精度分析與計(jì)算。在機(jī)械加 工中，孔的加工量所占比例較大，其中鉆頭、擴(kuò)孔鉆、鉸刀等定尺寸刀具加工占相當(dāng)多數(shù)。在單件小批量生產(chǎn)中，用劃線后找正孔軸線位置方法加工，更因鉆頭剛性差、易變形，因此生產(chǎn)效率低且精度差。鉆削時(shí)，被加工孔的尺寸和精度主要由刀具本身的尺寸和精度來(lái)保證；而孔的位置精度則由鉆套在夾具上相對(duì)于定位元件的位置精度來(lái)確定。 關(guān)鍵詞 ：機(jī)械制造，通用夾具，專用夾具，鉆床夾具，齒輪泵，電動(dòng)機(jī) ABSTRCT At the machine manufacture machinefinishing, the examination,the assembly, the welding and the heat treatment and so on in the coldhot technological process, are using the massive jigs, with installsthe processing object, enable it to hold the correct position,guarantees the ponents and the product quality, and enhancementproduction efficiency. Processes the work piece when the engine bed, in order to guaranteethe processing precision, must correctly install the work piece,causes its relative engine bed cutting forming movement and thecutting tool holds the correct position, this process is called thelocalization. For because of Cutting force, inertial force , exogenic processand so on the gravity is not destroyed the work piece already thecorrect position which decides, but also must certainly exert to itclamps the strength, this process is called clamps. Locates theentire process which and clamps to be called the installment. Usesfor on the engine bed to plete the work piece to install the dutythe important craft equipment, is in each kind of jig widely appliesthe engine bed jig. Engine bed jig type very many, among, the use scope broadest generaljig, the specificatio n size are many has standardized, and has thespecialty the factory to carry on the production. But widely uses inthe volume production, specially unit clamp which serves for some workpiece processing working procedure, then needs various factoriesindependently to design the manufacture according to the work pieceprocessing craft. Therefore, the unit clamp design is an importantproduction preparatory work, each is engaged in the processing craftthe work clothes design personnel, all should grasp the elementaryknowledge which the related jig designs. This design main content designs the drilling machine jig, needs thecounter gear pumps on the end cover 2 M8 hole and 1 14? the holecarries on drills truncates the processing. In the article introducedthe work piece in clamps the concrete center the locate mode, locatesthe part and the detent mechanism choice, and clamps the anizationthe choice and the design. The modern high efficiency jig mostly usesmobile clamps, divides according to the strength source has airoperated, the hydraulic pressure, the gas fluid union, the electricitytransmission and so on carries on using the engine bed movement to thework piece clamps. These ways have clamp the movement quickly, clampsthe strength to be stable, may reduce merit and so on worker laborintensity. This design selects the power unit which the electric motorachievement clamps, the utilization mechanical and electricaltransmission control loop control motor the reverse, is processed inorder to the control the work piece in to clamp concrete on addition, in the article has also carried on the simple precisionanalysis and the putation to the jig. On the machine parts often all has each kind of different use and thedifferent precision hole needs to process. In the machinefinishing,the hole process load accounts for the proportion to be bigger, drillbit, Expanding drilling, Reamer and so on decides the size cutting toolprocessing to occupy quite most. By now, besides had to guarantee thehole the size precision, but also had to achieve the hole the positionprecision request. In the single unit small volume production, afterdraws a line adjusts the hole spool thread position method processing,because the drill bit rigidity bad, is easier to distort, thereforethe production efficiency low also the precision is bad. Generally alluses the drilling machine jig in the volume production, the drillingmachine jig calls 鉆模 , through drills the set of guidance cuttingtool to carry on the processing to be possible accurately to determinebetween the cutting tool and the work piece relative position, is 鉆模 main characteristic. Drills when truncates, is processed thehole the size and the precision mainly by the cutting tool itself sizeand the precision guarant