853 銑床夾具設(shè)計

853 銑床夾具設(shè)計,銑床,夾具,設(shè)計 畢業(yè)設(shè)計說明書中文摘要氣缸體工藝及液壓夾緊銑床夾具摘要：機(jī)床夾具可根據(jù)其使用范圍，分為通用夾具、專用夾具、組合夾具、通用可調(diào)夾具和成組夾具等類型。機(jī)床夾具還可按其所使用的機(jī)床和產(chǎn)生加緊力的動力源等進(jìn)行分類。根據(jù)所使用的機(jī)床可將夾具分為車床夾具、銑床夾具、鉆床夾具（鉆模） 、鏜床夾具（鏜模） 、磨床夾具和齒輪機(jī)床夾具等，根據(jù)產(chǎn)生加緊力的動力源可將夾具分為手動夾具、氣動夾具、液壓夾具、電動夾具、電磁夾具和真空夾具等現(xiàn)代機(jī)床夾具的發(fā)展方向主要表現(xiàn)為標(biāo)準(zhǔn)化、精密化、高效化和柔性化等四個方面。機(jī)床夾具是機(jī)械加工工藝系統(tǒng)的一個重要組成部分。為保證工件某工序的加工要求，必須使工件在機(jī)床上相對刀具的切削或成形運動處于準(zhǔn)確的相對位置。當(dāng)用夾具裝夾加工一批工件時，是通過夾具來實現(xiàn)這一要求的。而要實現(xiàn)這一要求，又必須滿足三個條件：(1)一批工件在夾具中占有正確的加工位置；(2)夾具裝夾在機(jī)床上的準(zhǔn)確位置；(3)刀具相對夾具的準(zhǔn)確位置。這里涉及了三層關(guān)系：零件相 對夾具，夾具相對于機(jī)床，零件相對于機(jī)床。工件的最終精度是由零件相對于機(jī)床獲得的。所以“定位”也涉及到三層關(guān)系：工件在夾具上的定位，夾具相對于機(jī)床的定位，而工件相對于機(jī)床的定位是間接通過夾具來保證的。工件定位以后必須通過一定的裝置產(chǎn)生夾緊力把工件固定，使工件保持在準(zhǔn)確定位的位置上，否則，在加工過程中因受切削力，慣性力等力的作用而發(fā)生位置變化或引起振動，破壞了原來的準(zhǔn)確定位，無法保證加工要求。這種產(chǎn)生夾緊力的裝置便是夾緊裝置。關(guān)鍵字： 工藝 定位 夾緊力 精度 畢業(yè)設(shè)計明書外文摘要 Cylinder block milling process and hydraulic clamping fixtureSummaryFixture can be used in accordance with its scope, is divided into general-purpose fixtures, special fixtures, modular fixture, universal adjustable jig and fixture, such as the type of group. Fixture can also be used in accordance with its machine tools and power have stepped up the power source, such as classification. According to the machine tool can be used lathe fixture into fixtures, milling fixtures, drilling fixtures (Jig), Jig boring machine (boring mode), and gear grinding machine tool fixture fixture and so on, have stepped up force in accordance with the power source can be divided into fixture manual fixture, pneumatic fixtures, hydraulic fixtures, electrical fixtures, electromagnetic and vacuum fixture such as fixture The development of modern machine tool fixture is mainly expressed in the direction of standardization, precision, and high-performance and flexible, and so on four aspects. Fixture system, the machining process is an important part. In order to ensure a process of workpiece processing the request must be made on the workpiece in the machine tool relative movement of the cutting or forming in a precise relative position. When processing a number of workpiece clamping fixture, the fixture is required to achieve this. To achieve this requirement, it must meet three conditions: (1) a number of fixture holds the workpiece in the correct location of the processing; (2) clamping fixture in the exact location of the machine; (3) an accurate tool fixture relative position. The relationship between the three involved here: the relative fixture components, fixture relative to machine tools, machine tool parts in relation to. The ultimate accuracy of the workpiece is compared with the machine tool parts obtained. Therefore, the positioning also involves Three relations: on the workpiece in the fixture positioning, machine tool fixture relative to the positioning of the workpiece relative to the positioning of machine tools is indirect through the fixture to be guaranteed. After the workpiece positioning device must have a certain amount of clamping force to the workpiece fixed to the workpiece to maintain the accurate position location, otherwise, in the process due to the cutting force, inertial force and the occurrence of force caused by vibration or changes in location undermine the accuracy of the original position, can not guarantee that the processing requirements. Such devices have a clamping force is the clamping device.Keywords Technology Positioning Clamping force Accuracy.