機械類外文翻譯--變速箱殼體機械加工工藝設(shè)計-其他專業(yè)(編輯修改稿)
2025-02-24 06:08 本頁面
【文章內(nèi)容簡介】 important the choice of benchmark crude, if crude benchmark choice unreasonable, will the uneven distribution of machining allowance, processing and surface offsets, resulting in waste. In the cylinder production line, we have adopted for the coarse side of the base。 Fine reference base Refined the base of this box for the engine block parts, the general use of side two sales for a full range of uniform benchmarks, For the longer automated production positioning. In the gearbox shell of the process, we have adopted to the side, bottom and the spindle hole positioning, in the processing center on the process. Machining Processing Stages and processes of the arrangements Often a part of many apparent need for processing, of course, the surface machining accuracy are different. Processing of high precision surface, often after repeated processing。 As for the processing of the surface of low precision, only need to go through one or two on the list. Thus, when the development process in order to seize the processing high precision surface, this conflict, the reasonable arrangement processes and rational division stage of processing. Arrange the order of the principle of process is: after the first coarse refined, the first surface after the hole, the first benchmark other. In the engine block machining, the same should follow this principle. roughing stage engine block machining process The arrangements for roughing process, to fully carry out rough rough, trim most of the margin in order to ensure production efficiency。 semifinishing phase of the engine block machining In order to ensure the accuracy of the middle of some important surface processing, and arrange some semifinishing operations, will be required accuracy and surface roughness of the surface of the middle of some processing to plete, while demanding the surface of semifinished, to prepare for future finishing。 The finishing stage The finishing stage of requiring high accuracy and surface roughness of the surface processing。 secondary processing Secondary processing such as small surface screw holes, you can finish of the major surface after the one hand, when the workpiece deformation process little impact at the same time also reduced the rejection rate。In addition,if the main surface of a waste,these small the surface will not have to be processed,thus avoiding a waste of ,if the processing is very easy for a small surface bumps the main surface,it should be placed on a small surface finish prior to the mai n surface finishing。 make proper arrangements for secondary processes Make proper arrangements for secondary processes such as product inspection process,in part roughing stage,the key process before and after processing,spare parts all the processing has been p
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