改造連桿螺栓孔槍鉆組合機(jī)床和對(duì)槍鉆鉸工藝研究.pdf

1、天津大學(xué)碩士學(xué)位論文改造連桿螺栓孔槍鉆組合機(jī)床和對(duì)槍鉆鉸工藝研究姓名：張志強(qiáng)申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：動(dòng)力工程指導(dǎo)教師：張惠明楊德同20030701ABSTRACTInthethesis，forimprovingthecuttingqualityoftheconnectingrodboltholesin6200dieselengines，thefactorsinfluencingit，suchasgundrillingreamedmach

2、inetools，clampingfixtures，tools，cuttingdosage，cuttingsolution，havebeenanNyzedThegundrilling—reamedmachinetoolsandcuttingprocesstechniqueofthegundrilling—reamedholeshavebeenimprovedThegundrillbitandgunreamerhasbeendesigne

3、dThecuttingdosageandcuttingsolutionhavebeenchosenThecuttingqualityoftheconnectingrodboltholeshasbeenguaranteedThekeytechnicshavebeensolvedinthefactoryproductionThereasonshavebeenfoundthatthesurfaceroughnessoftheconnectin

4、grodboltholeswasn’tthecertificateofqualityandtheperpendicularitybetweentheboltholesandtheconnectingfaceintheconnectingrodwasoutofthetoleranceaccordingtoqualityanalysisOnthebasisofthecuttingtheorythegeometricparametersoft

5、hegundrillbithavebeendesignedThedesignofthetwoguidersinthegundrillbitshouldassurethatthecuttingradialcompositeforceactstotheguidersandthepressureperunitareaoftwoguidemisequalThematerialofthegunreamerbladeshouldmeetthegoo

6、dabradability，thehi曲cuttingspeedandtheprecisionretentivityThegeometricparametersofthegunreamerhavebeendesignedandoptimizedaccordingtogunreamedcuttingcharacterandcuringaccuracyThecuttingspeedandfeedamounthavebeendetermine

7、daccordingtocombiningcomputing，lookuptableandpracticalexperienceTochoosethecuttingsolution，notonlycooling，lubrication，chipremoval，andpreventionofcorrosionshouldbeconsideredalsotheroughnessofthedrilledholeshouldbeconsider

8、edforthereamedheleprocessByanalyzingtheguidesleevestressduringthecutting，coaxialitybetweenthegyrationcenterofthemainarborandthecenteroftheguidesleeveinthemachinetool，gapbetweentheguidersofdrillbitandguidesleeve，themethod