精密機(jī)械加工工藝外文翻譯-其他專業(yè)-資料下載頁(yè)
2025-01-19 01:04本頁(yè)面
【導(dǎo)讀】發(fā)生振動(dòng)或位移、夾具結(jié)構(gòu)中應(yīng)設(shè)置夾緊裝置將工件可靠夾牢。夾緊裝置的種類很多，但其結(jié)構(gòu)均由兩部分組成。能產(chǎn)生力的裝置稱為夾。常用的動(dòng)力裝置有：氣動(dòng)裝置、液壓裝置、電動(dòng)裝置、電磁裝置、氣—液聯(lián)動(dòng)裝置和真空裝置等。由于手動(dòng)夾具的夾緊力來(lái)自人力，所以它沒有動(dòng)。作用力的方向、改變作用力的大小以及自鎖等作用。夾緊裝置的復(fù)雜程度應(yīng)與生產(chǎn)綱領(lǐng)相適應(yīng)，在保證生產(chǎn)效率的。楔、螺旋、偏心以及由它們組合而成的夾緊機(jī)構(gòu)應(yīng)用最為普遍。直接采用斜楔夾緊時(shí)，斜楔的自鎖條件是：斜楔的升角小于斜楔與工。件、斜楔與夾具體之間的摩擦角之和。斜楔夾緊具有結(jié)構(gòu)簡(jiǎn)單，增力比大，自鎖性能好等特點(diǎn)，因此獲得廣泛應(yīng)用。采用螺桿作中間傳力元件的夾緊機(jī)構(gòu)統(tǒng)稱為螺旋夾緊機(jī)構(gòu)。1．簡(jiǎn)單螺旋夾緊機(jī)構(gòu)最簡(jiǎn)單的螺旋夾緊機(jī)構(gòu)由于直接用螺釘頭部壓緊工件，基準(zhǔn)時(shí)，為使基準(zhǔn)重合以減少定位誤差，需采用定心夾緊機(jī)構(gòu)。直度達(dá)，平行度高達(dá)。
【正文】 endly direction, driven by technology is moving fixture highprecision, highperformance, modular, mix, general economic direction. First, highprecision Machining with improved accuracy, in order to reduce the positioning error and improve machining accuracy of the fixture manufacturing precision demanding highprecision positioning jig Distance accuracy up to 177。 5μm the bearing surface of the vertical fixture achieve / 300mm up to Switzerland duplication EROWA Flexible fixture positioning accuracy of up to 2 ~5μm. Precision machine tool fixture to the micron level has been raised the worlds leading manufacturer of fixture is precision machinery manufacturing enterprises. It is true that, in order to meet the needs of different industries and economy, folders with different models, as well as the different grades for the accuracy of the standard options. Second, efficient tool To improve production efficiency, doublesided, four and more than clamping fixture of more and more products. Work piece in order to reduce the 共 5 頁(yè) 第 9 頁(yè) installation time, all kinds of autocentering clamping, precision flat clamp, clamping levers, cam clamp, such as pneumatic and hydraulic clamping, rapid clamping new features constantly. New type of electronically controlled permanent mag fixture, step up and release the work piece only 1~2 seconds, simplifying the fixture structure for the machine to carry out stage, faceted and processing to create the condition. American JERGENS the pany39。s ball lock clamping system,1 minutes, will be able to locate and lock fixture in the machine tool table, the ball lock clamping system of flexible production line for the replacement of fixtures, played reduce downtime and increase the role of productivity. Third, modules Modular ponents of modular fixture is the basis of the realization of portfolio. Take advantage of the modular design of serialization, standardization fixture elements, quickly assembled into a variety of fixtures, has bee a fixture technology development basis labor, time, materials, energysaving, being reflected in a variety of advanced fixture system innovation. The modular design laid the foundation for the the fixture puteraided design and assembly. Application of CAD technology to create a ponent library the typical fixture library, standard and user archive fixture optimization design, assembly fixtures for users dimensional solid. Cutting process simulation tool, both to provide users with the correct fixtures and ponents supporting the program, but also the accumulation of experience, understand the market demand, and continue to improve and perfect the fixture system. Fourth, GM Economic fixture versatility direct impact on the economy. Modules, modular fixture system, a onetime investment is relatively large, the only fixture system reconfigurable and scalability features a wide range of applications, mon good, fixture utilization, faster recovery of investment to reflect the economic good. 共 5 頁(yè) 第 10 頁(yè) 注： 1. 指導(dǎo)教師對(duì)譯 文進(jìn)行評(píng)閱時(shí)應(yīng)注意以下幾個(gè)方面：①翻譯的外文文獻(xiàn)與畢業(yè)設(shè)計(jì)（論文）的主題是否高度相關(guān)，并作為外文參考文獻(xiàn)列入畢業(yè)設(shè)計(jì)（論文）的參考文獻(xiàn)；②翻譯的外文文獻(xiàn)字?jǐn)?shù)是否達(dá)到規(guī)定數(shù)量（ 3 000 字以上）；③譯文語(yǔ)言是否準(zhǔn)確、通順、具有參考價(jià)值。 2. 外文原文應(yīng)以附件的方式置于譯文之后。 指 導(dǎo) 教 師 評(píng) 語(yǔ) 外文翻譯成績(jī)： 指導(dǎo)教師簽字： 年 月 日
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