Lesson 1Overview a CNC milling center: spindle, axes, table, tool changer, enclosure, an conveyor integrationDis section introduce di CNC milling center as a complete system, relatin spindle, axes, table, ATC, enclosure, an conveyors. It emphasize component interactions, workflow, an basic inspection durin maintenance.
Major structural groups and castingsSpindle, axes, and table relationshipsTool changer location and motion pathsEnclosure, doors, and chip containmentConveyor routing and chip dischargeWalkaround inspection and baseline checksLesson 2Lubrication an coolant systems: central lubrication pumps, lines, nozzles, coolant filtration, tramp oil an sump managementDis section explain lubrication an coolant systems, includin pumps, metering devices, lines, nozzles, filtration, an sump care. It link fluid condition to accuracy, component life, an environmental compliance.
Central lube pumps and metering unitsWay lube distribution lines and leaksCoolant nozzles, flow, and chip evacuationFiltration, screens, and bag filtersTramp oil removal and concentration testsSump cleaning, disposal, and recordkeepingLesson 3Conveyor an peripheral integration: automatic part handlin, sensors, motorized rollers, timin, an safety guardsDis section examine conveyors an peripheral devices fi chip an part handlin. It cover motors, sensors, timin, guardin, an integration wid CNC logic to ensure reliable, safe, an low-maintenance operation.
Chip conveyor types and drive optionsPart handling devices and escapementsConveyor sensors, jams, and level switchesTiming with CNC cycles and M-codesSafety guards, interlocks, and signagePreventive cleaning and wear inspectionLesson 4Linear motion an axis components: ball screws, linear guides, encoders, backlash an preload conceptsDis section detail axis mechanics, includin ball screws, linear guides, an encoders. It introduce backlash, preload, an alignment concepts, an show how dem affect accuracy, rigidity, an long-term machine reliability.
Axis kinematic chain and load pathsBall screw construction and support bearingsLinear guide types, sizing, and lubricationEncoder mounting, resolution, and feedbackBacklash measurement and compensationPreload, rigidity, and thermal growth effectsLesson 5Automatic tool changer (ATC) an magazine mechanics: grippers, selectors, sensors, diagnosticsDis section explain ATC an magazine construction, includin grippers, carousels, sensors, an drives. It cover alignment, tool data handlin, diagnostics, an preventive maintenance to avoid misloads an collisions.
ATC layouts: carousel, chain, drum typesGrippers, pots, and tool retention checksMagazine indexing drives and home referenceTool presence, position, and orientation sensorsATC change sequence and interlocksCommon ATC faults and diagnostic routinesLesson 6Detailed spindle an drive system components: bearings, motor types (servo/variable frequency), belts, couplinsDis section focus pon spindle an drive components, includin bearings, motors, belts, an couplins. It explain speed control, vibration sources, lubrication needs, an maintenance practices to extend spindle life.
Spindle cartridge layout and cooling pathsBearing types, preload, and failure modesServo and induction spindle motor optionsBelts, pulleys, and tension adjustmentCouplings, keys, and alignment checksVibration, noise, and temperature monitoringLesson 7Sensors an safety subsystems: limit/home switches, interlocks, E-stops, vibration an temperature sensorsDis section cover sensors an safety subsystems, includin limit an home switches, door interlocks, E-stops, an condition sensors. It stress testin, wirin checks, an documentation to maintain safe operation.
Limit and home switch placementDoor and guard interlock principlesEmergency stop circuits and reset testsVibration and temperature monitoring usesSafety relays, circuits, and standardsPeriodic safety inspection proceduresLesson 8Electrical an control subsystems: power distribution, drives, servo amplifiers, PLC, CNC controller, HMIs an IO mappinDis section cover electrical power distribution, servo drives, amplifiers, PLC, CNC controller, HMI, an I/O mappin. It link schematics to real hardware, emphasizin troubleshootin, groundin, an safe measurement practices.
Main power distribution and protectionServo drives, amplifiers, and motor cablesPLC roles, I/O modules, and field wiringCNC controller architecture and parametersHMI screens, alarms, and diagnosticsI/O mapping, signal tracing, and testing
