IS200BICLH1BBA咨询***：18506919598（卢工）***：312782195自动换刀时，刀柄上的键槽要对准主轴的端面键，为此，数控冲床主轴每次停转必须准确地停在某一固***置上，这就要求主轴具有准确周向***的功能。在加工精密坐标孔时，由于每次都能在主轴固定的圆周位置上装刀，因此可以保证刀尖与主轴相对位置的一致性，从而提高孔径的正确性，这是主轴准停装置的另一优点。这种使主轴准确地停止在某一位置上的装置称主轴准停装置。1.数控冲床机械控制的主轴准停装置数控冲床采用机械控制的主轴准停装置定向比较可靠、***，但结构复杂。如图6.5所示，主轴准停装置设在主轴尾端，当主轴需要停车换刀时，发出降速信号，主轴箱自动改变传动路线，使主轴换到低速运转；时间继电器***数秒后，开始接通无触点开关4；当凸轮2上的感应片对准无触点开关时，发出准停信号，立即切断主电动机电源，脱开与主轴的传动联系，以消除传动系统中大部分旋转零件的惯性对主轴准停的影响，使主轴作低速空转；再经过时间继电器的短暂***，接通液压油，使***活塞6带动***滚子5向上运动，并压紧在凸轮1的外表面。当主轴带动凸轮l慢速转至其上的V形槽对准滚子5时，滚子进入槽内，使主轴准确停止，同时限位开关7发出信号，表示已完成准停。如果在规定的时间内限位开关7未发出完成准停信号，即表示滚子5没有进入V形槽，这时时间继电器发出重新***信号，并重复上述动作，直到完成准确停止；然后，***活塞6退回到释放位置，行程开关8发出相应的信号。GE65L825TK150kVAR600VDielektrolVI60Hz3PHCapacitorwDischargeResistorsABBCLMD83C1Capacitor40KVARLVNQ480V60HzCLMDAseaBrownBoveriGE65L821TE140kVAR480VDielektrolVI60Hz3PHCapacitorwDischargeResistorsGE65L819TK135kVAR600VDielektrolVI60Hz3PHCapacitorwDischargeResistorsGE65L819TE135kVAR480VDielektrolVI60Hz3PHCapacitorwDischargeResistorsMyronZucker2541-EL25kVAR480V60Hz3PHCalvaultCalmountCapacitor25kVARABBControlInc.***84G22.522.5kVAR480V60Hz3PHCLMD-43Capacitor22.5kVARAseaCLMD63C2Capacitor20KVARLVNQ480VCLMD63ABB20kVARGE65L813TE120kVAR480VDielektrolVI60Hz3PHCapacitorwDischargeResistorsMyronZuckerKNM43020-320kVAR480V60Hz3PHCalmountPowerCapacitorAssemblyGE65L811TK115kVAR600VDielektrolVI60Hz3PHCapacitorwDischargeResistorsMyronZuckerKNM43010-310kVAR480V60Hz3PHCalmountPowerCapacitorAssemblyMyronZucker1043-VL10kVAR480V60Hz3PHCalvaultCalmountCapacitor10kVARGE65L808TK17.5kVAR600VDielektrolVI60Hz3PHCapacitorDischargeResistorsGE65L807TK16kVAR600VDielektrolVI60Hz3PHCapacitor/wDischargeResistorsGE65L806TK15kVAR600VDielektrolVI60Hz3PHCapacitor/wDischargeResistorsGE0144D2156G001SurgeSuppressor/wWiringHarnessCapacitorGeneralElectricMalloryCGS462T200X4CCapacitor4600uF200VDCMax-250VDCCGS462T200X4-CKohler25KW750HoursDieselGeneratorSetGensetwithATS60Hz120GalTankLightninMixerVektorV6Q55460V0.75HP1725RPM2.5A271614CutlerHammer***UnitrolMCCMotorControlCenter1200Amp3secti***480VSquareDModel6MotorControlCenter1200AHoriz/300AVertMCC3SectionMod6SquareDModel6MotorControlCenter1200A2-Secti***Mod6MCCDoubleSectionFurnasSystem89600Amp600VMCCmotorcontrolcentersection8988WA033-11SquareDModel5MotorControlCenter600A600V2VerticalSectionMod5MCCSquareDModel6MotorControlCenter600AHoriz/300AVertMCC3SectionAllenBradleyMotorControlCenter800A600VVerticalSectionMCCABCenterlineGeneralElectricGEMotorControlCenterDoor29"tallGeneralElectricGEMotorControlCenterDoor21"tallMitsubishiElectricMELSECF1-60MRMitsubishiElectricMELSECControllerFX2N-16EYT-ESS/?ULMitsubishiElectricEncoderkabelMR-JCCBL5M-HMitsubishiElectricBaseUnitMelsec-QQ35B-EMitsubishiElectricMelsec-QInputUnitModelQX80MitsubishiElectricMELSECControllerFXon-8EYR-ES/ULGMitsubishiElectricMELSECCPUUNITQ02HCPUMitsubishiElectricMELSECPowerSupplyUnitQ61P-A2GEMitsubishiElectricMELSECProgrammableControllerFX1NMitsubishiElectricMELSECNET/MINIControllerAJ35PTFEMitsubishiElectricMELSECAnalogUnitF2-6A-EMitsubishiElectricMELSECProgammableControllerF2-60MitsubishiElectricProgrammableControllerMELSECF1-1MitsubishiElectricMELSECProgrammableControllerAJ71MitsubishiElectricBaseUnitA1S35BMitsubishiElectricMELSECProgrammableControllerAD61MitsubishiElectricMELSECProgrammableControllerAJ71MitsubishiElectricMELSECProgrammableControllerAJ71MitsubishiElectricMELSECNET/MINIControllerAJ35PTFEMitsubishiElectricMELSECControllerAX81MitsubishiMELSECF1-12MR-ESF112MRESMitsubishiMELSECF2-60ET-ESSF260ETESS)