【正文】 具元件、部件，專(zhuān)為某一工件的某道工序組裝的夾具，稱(chēng)為組合夾具。采用第一種方法夾工件時(shí)，一般要先按圖樣要求在工件表面劃線(xiàn)，劃出加工表面的尺寸和位置，裝夾時(shí)用劃針或百分表找正后再夾緊。而機(jī)床行業(yè)又是裝備制造業(yè)的基礎(chǔ)行業(yè)，是向傳統(tǒng)機(jī)械工業(yè)、國(guó)防工業(yè)、汽車(chē)工業(yè)、航空航天工業(yè)、電子信息技術(shù)工業(yè)以及其他加工工業(yè)提供加工裝備的部門(mén)，是“支柱的支柱”。關(guān)鍵詞：工藝過(guò)程；機(jī)械加工工藝；裝配工藝AbstractProcess is in the production process, the production target by changing the shape, location and nature of each other, making it a finished or semifinished products of the process. Machinery manufacturing process generally includes parts of the machining process and machinery assembly process. Machining process (the process) is a mechanical method of processing the direct Blanks change the shape, size, location and nature of relative to bee qualified parts of the process. Processing machinery and spare parts directly determine the quality of the product, the product cost and productivity have a greater impact, the whole process is an important part. The assembly is processed by certain parts of the sequence and connect to the technical requirements to bee a plete machine (or product), it must be reliable machinery to achieve (or product) design features. Machinery assembly, generally include: assembly, adjustment, testing, testing, and so on. Not only is it necessary to manufacture machines the final stage, but also on the design of machinery, spare parts of processing machinery assembly quality and the quality of the test. By processing the design process, we can more effective use of existing resources equipment, reduce production costs and shorten the processing time to achieve the optimum production.Key words: Process。一、 機(jī)床夾具在機(jī)械加工中的作用對(duì)工件進(jìn)行加工時(shí)，為了保證加工要求，首先要使工件相對(duì)于刀具及機(jī)床有正確的位置，并使這個(gè)位置在加工過(guò)程中不因外力的影響而變動(dòng)。專(zhuān)用夾具一般在批量生產(chǎn)中使用。6. 其它裝置或元件它們是指夾具中因特殊需要而設(shè)置的裝置或元件?；孢x擇得正確、合理與否，將直接影響工件的加工質(zhì)量和生產(chǎn)率。刀具： 硬質(zhì)合金端銑刀,牌號(hào)YG8合金鋼。5)校驗(yàn)機(jī)床功率 查《機(jī)械加工工藝手冊(cè)》表3025得Pcc=,而機(jī)床所能提供功率為PcmPcc。由計(jì)算公式 Fj=FsL/(d0tg(α+ψ1’)/2+r’tgψ2) 式（）Fj－沿螺旋軸線(xiàn)作用的夾緊力 Fs－作用在六角螺母L－作用力的力臂(mm) d0－螺紋中徑(mm)α－螺紋升角(゜)ψ1－螺紋副的當(dāng)量摩擦(゜)ψ2－螺桿(或螺母)端部與工件(或壓塊)的摩擦角(゜)r’－螺桿(或螺母)端部