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1、1防錯(cuò)防錯(cuò)模塊建立的目標(biāo)ModuleObjectivesUponcompletionofthismodule,youshouldbeableto:ExplainwhaterrorproofingisAvoiderrorsthatcausedefects為了完成改模塊的建立,你們應(yīng)當(dāng)能:解釋何為“防錯(cuò)”防止錯(cuò)誤裝配造成缺陷什么是“防錯(cuò)”?WhatIsErrorProofing?EliminatingdefectsbeforetheyoccurwhereverpossibleDetectingerrorsastheyoccurtopreventbadpartsf
2、rombeingpassedon在任何有可能產(chǎn)生缺陷的地方,缺陷發(fā)生前就將其防止缺陷發(fā)生時(shí)對(duì)其診斷以防止缺陷件繼續(xù)流到下道工序?yàn)槭裁葱枰胺厘e(cuò)”WhyErrorProof?Standardizeoperationalprocedures/sequencesSignalorstopprocesseswhendefectsarecreatedEliminatechoices(humanerror)標(biāo)準(zhǔn)化操作程序當(dāng)缺陷產(chǎn)生后要有信號(hào)或停線措施避免人為發(fā)生錯(cuò)誤“防錯(cuò)”能為我?guī)硎裁春锰??What’sinitforme?Causeoferroriseliminated
3、ErrorsarenotrepeateddefectsarenotpassedonQualityisbuiltintotheprocessEliminatechoices(humanerror)排除了產(chǎn)生缺陷的可能不會(huì)重復(fù)發(fā)生同樣的錯(cuò)誤不會(huì)傳遞缺陷生產(chǎn)過程中實(shí)現(xiàn)了“造入質(zhì)量”消除了人為出錯(cuò)的因素過去的做法OldParadigmAnoperationisperformedAdefectoccursThedefectisdiscovered操作產(chǎn)生缺陷缺陷被發(fā)現(xiàn)現(xiàn)在的做法NewParadigm缺陷在產(chǎn)生前即被杜絕或是在傳遞至下道工序前就被發(fā)現(xiàn)。Adefectpr
4、eventedbeforeitoccursordiscoveredbeforeitispassedontothenextprocess.何為“過失”DefinitionofanError與已制定的工藝有偏差所有缺陷都是由過失造成并不是所有過失都會(huì)造成缺陷DeviationfromtheintendedprocessAlldefectsarecausedbyerrorsNotallerrorsresultindefects常見的過失CommonErrors不正確地加工安裝工件包容有缺陷的零件錯(cuò)誤的工件缺少調(diào)節(jié)、測(cè)量設(shè)備故障工具、夾具、刀具準(zhǔn)備不足Incorre
5、ctprocessingSettinguptheworkpieceInclusionofwrongpartWrongworkpiecePoorAdjustments,measurementsEquipmentmalfunctionPoorPreparationoftools,jigs,blades缺陷的定義DefinitionofaDefect不符合規(guī)范不符合顧客的期望輸入Input錯(cuò)誤Error可能產(chǎn)生缺陷PossibleDefect輸出OutputDeviationfromspecificationsDoesnotmeetcustomerexpectat
6、ions常見缺陷的種類CommonDefectCategories有缺陷的產(chǎn)品材料缺陷糟糕,缺了指針工藝缺陷這不起作用主要缺陷遺漏處理次要缺陷調(diào)整錯(cuò)誤錯(cuò)誤項(xiàng)操作不當(dāng)錯(cuò)誤的工件工件安裝錯(cuò)誤其它錯(cuò)誤設(shè)備設(shè)置不當(dāng)缺件工藝錯(cuò)誤常見缺陷的種類CommonDefectCategories零件被損零件顛倒零件搭配錯(cuò)誤零件配合不重合等等檢驗(yàn)失效錯(cuò)誤的零件錯(cuò)誤的尺寸不能裝配DamagedpartsReversedpartsMismatchedpartsMisalignedpartsEtc.TestfailuresWrongpartsWrongsizesCannotassemb
7、le紅色標(biāo)記RedFlag在制造過程中容易產(chǎn)生錯(cuò)誤的地方需要標(biāo)注紅色記號(hào)使用紅色標(biāo)記來提示進(jìn)行檢測(cè)并防止將來產(chǎn)生錯(cuò)誤RedFlagConditionssignalwherethereispotentialinthemanufacturingprocessforerrorsUseRedFlagtotargetactionstodetectandpreventfutureerrors需使用紅色標(biāo)記的情況RedFlagConditions(12)調(diào)整工具更換不恰當(dāng)尺寸/規(guī)格/臨界狀況零件數(shù)目多/混合擺放步驟復(fù)雜小產(chǎn)量產(chǎn)品AdjustmentsImproperToo
8、lchangesDimension/specs/cr