摘要:機(jī)械加工行業(yè)作為一個傳統(tǒng)而富有活力的行業(yè)，近十幾年取得了突飛猛進(jìn)的發(fā) 展，在新經(jīng)濟(jì)時代，行業(yè)呈現(xiàn)了新的發(fā)展趨勢，由此對其它的質(zhì)量，性能要求有了新 的變化。現(xiàn)在機(jī)械加工行業(yè)發(fā)生著結(jié)構(gòu)性變化，工藝工裝的設(shè)計與改良已成為企業(yè)生 存和發(fā)展的必要條件，工藝工裝的設(shè)計與改良直接影響加工產(chǎn)品的質(zhì)量與性能。

　　　隨著社會的需要，各種型號不一，功率不一的柴油機(jī)生產(chǎn)數(shù)量將不斷的增長，而 氣門搖臂軸支座是柴油機(jī)上不可或缺的一個零件，也就是意味著氣門搖臂軸支座的生 產(chǎn)數(shù)量也將是與日俱增，為了創(chuàng)造出更大的效益，設(shè)計出輕便，經(jīng)久耐用，便于生產(chǎn) 的氣門搖臂軸支座這一零件是很有必要的。

　　　本文首先介紹了氣門搖臂軸支座的作用和工藝分析，其次確定毛坯尺寸，然后進(jìn) 行了工藝規(guī)程設(shè)計，最后進(jìn)行夾具設(shè)計。此次設(shè)計是對氣門搖臂軸支座的加工工藝和 夾具設(shè)計，其零件為鑄件，具有體積小，零件結(jié)構(gòu)簡單的特點，由于面比孔易加工， 在制定工藝規(guī)程時，就先加工面，再以面為基準(zhǔn)來加工其它，其中各工序夾具都采用 專用夾具，其機(jī)構(gòu)設(shè)計簡單，方便且能滿足要求。

關(guān)鍵詞：氣門搖臂軸支座，工藝分析 ，工藝規(guī)程設(shè)計 ，夾具設(shè)計

Abstract:Machining industry ,as a traditional and vibrant industry, has been rapidly developed for  a  few  past  decades.  In  the  new  economic  area,the  industry  presented  a  new development trend,and the trends also changes the quality and the performance of the production in some new abstracts. Machining industry is now taking place in structural changes, process design and improvement of equipment has become the necessary conditions of the enterprise survival and development, process equipment design and improved products directly affect the quality and performance.

　　With the needs of the community, various models of different power diesel engines of varying the number will continue to increase production, while the valve rocker shaft bearing is an integral part diesel engine, that is, valve rocker shaft support means Block will also be increasing the number of production, in order to create greater efficiency, to design lightweight, durable, easy to manufacture the valve rocker arm bearing of this part is necessary.

　　This article introduces the role and process analysis of the valve rocker arm bearing support,followed by determining blank size, and then proceed to order the design process, the final fixture design. What will be disgned is The machining process and fixture design of the Valve Rocker Arm Bearing support,which has the chatacteristics of three abstrcat.its components for castings, with a small size, simple structure and the characteristics of parts,because the surface is easier than the easy processing, point of order in the development process, the surface on the first processing , and then to surface as a benchmark to other processing, including the processes used special fixture, and its design is simple, convenient and can meet the requirements.

Keywords: Valve rocker arm bearing support, process analysis, Process design, fixture design