【文章內(nèi)容簡介】
ile transformation, as shown in Figure 5 Then passes through the different step① Processing spot selection,② Cutting tool choice,③Cutting tool parameter establishment (Figure 6),④ Processing way establishment,⑤Rough machining parameter establishment,⑥ Establishments and so on precision work parameter establishment, plete the hand cabi39。s numerical control automatic programming) to select the chart not sideline and to carry on the establishment finally according to the chart. Completes above each technological parameter establishment, passes through the following processing step simulation (Figure 7} to take shape finally like Figure 8.①Contour milling。② In writing superficial milling。③ On shell superficial milling。④Circumference rough machining。⑤ System generation procedure (Figure 9). Using MasterCAM9. 0 postprocessing modules, select the engine bed correspondence numerical control system39。s post processor to produce the numerical control procedure. Selects MPFAN. PST document MasterCAM9. 0 will produce suits this engine bed movement the numerical control procedure. The MasterCAM software system has developed in view of many numerical control systems with it match postprocessing document (for example FANUC, SIEMENS, MITSUBISHI and so on), the selection corresponding postprocessing document, then the direct production specific numerical control system needs numerical control processing program. Because this system is the domestically produced Nanjing Huaxing 21M numerical control system, in the MasterCAM software system not the postprocessing document which matches with it, the automatic production39。s NC procedure cannot the direct transmission carry on the processing for the numericallycontrolled machine tool, needs to make the simple revision. The revision finished then the file transfer for the numericallycontrolled machine tool, pleted the work piece the processing. Has mainly made the following three aspect revision to the automatic production39。s numerical control procedure. ① Obliterates the procedure to begin, section tail some regarding the system not essential explanation explanatory procedure code, uses in exchange cutting tool39。s explanation among the procedure also to delete. For example: % 00000 (PROGRAM NAME一 BB1) (DATE=DD一 MM一 YY一 06一 05 TIME=HH:MM一 10。45) N0 G21 N2 GO G17 G40 G49 G80 G90 (16. FLA