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1、摘要设计齿轮泵零件前泵盖的机械加工工艺规程及工艺装备，通过对齿轮泵前泵盖的了解，根据它的形状、尺寸精度、生产的经济效益等各方面的详细分析其加工工艺，采用多工序，数控机床加工。通过对零件的分析，此齿轮泵前泵盖要求精度高，工序适当集中，要求光滑，所以选用的工具和尺寸要量得准。最后对零件进行校核。以便达到零件精度的要求。齿轮泵前泵盖采用灰铸铁HT200，它有容易变形，吸振性好，耐磨性及切削性好等特点。当生产批量不大时齿轮泵零件前泵盖毛坯采用木模手工造型，制作简单但毛坯精度较低，余量也较大，大批、大量生产时则采用金属模机器造型。毛坯精度高，余量可适当减少。在单件生产时，有时采用
2、焊接件作毛坯，以缩减短生产周期。随着科学技术的进步，各种新技术、新工艺、新材料和新设备不断涌现，机械制造工艺正向着高质量、高生产率和低成本方向发展。必须捉住机遇，把引进国内外先进技术（如数控设备）和研究创新结合起来，奋发图强，加快发展速度，为使厂生产出一批具有世界先进水平的产品，提高生产。关键词：数控编程；加工工艺；铣削加工；齿轮泵前泵盖；装夹方案AbstractDesigngearpumppartsofthepumpcoverbeforethemachiningprocessproceduresandprocessequipment,throughbeforethep
3、umpcoverforgearpumpunderstanding,accordingtoitsshape,sizeaccuracy,productionofeconomicbenefitsofeachrespectsuchasdetailedanalysisitsprocessingtechnology,usingmoreprocesses,CNCmachineprocessing.Basedontheanalysisofthecomponents,thegearpumppumpcoverrequirementsbeforehighprecision,processes
4、,demandingsmooth,appropriateconcentrationselectionoftoolsandsizesotomeasurewhether.Finaltestofparts.Inordertoreachtheaccuracyrequirementoftheparts.Beforeusinggreyside-platepumpcoverHT200,ithaseasydeformationofgood,andvibration,wearresistanceandcuttingsexisgoodwaitforacharacteristic.Whent
5、heproductionbatchisnotbiggearpumppartsbyformerpumpcoverblankblock,makesimplebutmanualmodelling,allowancelowprecisionblankislargeralso,large,mass-producedusingmetalmouldmachineismodelling.Blankhighprecisioncanbereducedsuitably,allowance.Insingleproduction",sometimesuseasablank,tocutshortp
6、roductioncycle.Alongwiththescienceandtechnologyprogress,allkindsofnewtechnology,newtechnology,newmaterialandnewequipmentconstantlyemerging,mechanicalmanufacturingprocessistowardthehighquality,highproductivityandlowcostdirection.Mustcatchopportunityandtheintroductionofforeignadvancedtechn
7、ology(suchasncequipment)andresearchinnovationcombined,striving,acceleratedevelopmentspeed,makingforafactoryproducedanumberoftheworld'sadvancedlevelofproduct,improveproduction.Keywords:Numericalcontrolprogramming,processingtechnology,milling,gearpumps,pumpcoverbeforeclampi
