Machine Tools And The Gear-Shaping Machine Automation .
The Gear-Shaping MachineLS 80 – 180
The Machine ConceptWith the machines LS 80 – LS 180 Liebherr is introducinga new series of production gear shaping machines. Theperformance and flexibility of these machines are optimized for high production requirements.The machines are based on a common modular platformwith proven components from the hobbing machine platform. Especially noteworthy are the direct table drive andthe thermo-symetric, liquid-circulated machine bedFor small face width parts, a RAPID version with max.3000 strokes/min. is available. For tapered gears all models can be equipped with a swivel-type column for up to12 swivel angle.Z1For the dry machining process, efficient and fast chipseparation is a major prerequisite.The process energy involved and the disposal of hot chipsshould not adversely affect the geometry of the machine.The redesigned work area with stainless steel lining improves the chip discharge.The extremely short cutting times require short loadingand unloading times. Modular automation systems areavailable for various types of workpieces, supplementedby integrated and peripheral workpiece storage systems.Z2Z3B4C1Z4C2X12C3
The Machine Bed as Technological PlatformMachining performance and gearing quality demand highstandards from the mechanical and thermal stability of themachine. The machine bed serves as platform for variousgearing technologies. With its symmetrical design, largewall thicknesses and internal coolant circulation cavities,the machine bed satisfies these requirements.The Machine Table with Gear DriveA backlash-free table drive is a requirement to achievehighest possible qualities. Our backlash free and high dynamic gear driven tabel drives meet all demands regarding speed and accuracy. Therefore we can meet, all of todays and future process requirements.The Radial Movable ColumnThe radial movable column contains the shaping headwith the indexing drive for the tool, the stroke drive for thelinear oscillating cutter spindle and the drive for the backoff cam.All Liebherr machines of the LS series have a hydrostaticcutter spindle.3
The Controls – Intelligence from ExperienceIn standard, the machines are delivered with Siemenscontrol in connection with Siemens-drives.The essential features of these advanced controls are: PC based control technology digital drive technology integrated PLC advanced field bus systems (profi bus) TFT flat screen optional network integration dialog input tailored to gear machining Teleservice Diagnostic toolsWith these customer-oriented options, we satisfy the demands of the international markets.Versatile Workpiece HandlingThe tailstock column enables manual and automatic loading / unloading of bore- and shaft-type parts for dry andwet machining.The workpieces may optionally be clamped table-sidewith high clamping force or – for shorter cycle times –with an NC tailstock arm. Liebherr offers automatic loading/unloading and storage systems for a wide range ofworkpieces. Furthermore, the machine can be integratedinto cell or line concepts.The machine offers quick change-over possibilities forflexible use via a quick change system for workpiece gripper and fixtures.Automation - for any RequirementThe Liebherr automation systems are based on long experience, i.e. they are proven and effective solutions. Forstand-alone machines, machining cells or productionlines Liebherr is the competent partner.High Uptime - Friendly MaintenanceThe high performance of the machine requires low downtimes and an easy maintainability. This is a prime asset ofLiebherr. Therefore all control elements are integrated inthe machine housing with ideal accessibility.4
Technical DataMax. cutting diameterMax. nominal module for steelStroke lengthGear width (standard)Table diameterTable speedCenter distance spindle/tableSpindle inclinationMax. Stroke speed (Standard)- Max. Stroke speed (option)- Max. Stroke speed (option)Weight of machine with tailstock columnTotal connected loadmmmmmmmmmmmin-1min. mmmax. mmGradDS/minDS/minDS/minappr. kgappr. kVALS 8080-15LS 120125LS 1501503 (5)30 (55)26 (48)145150-25-30/-25* 220-0.5. 0.51,5001,8003,00013,00030-40LS 180180-35/-25**with steady column5
Machine Tools andAutomation Systems by LiebherrWith around sixty years of experience in the field, Liebherr is one of the world‘s leading manufacturers of CNC gearcutting machines, gear cutting tools and automation systems. These innovative products are the result of advancedideas, highly qualified employees and the latest manufacturing systems at each of their locations. They are characterisedby economy, ease of use, quality and reliability in combination with a high degree of flexibility.Liebherr employs approximately 1,200 people in the field of machine tools and automation technology and has productionfacilities in Kempten and Ettlingen (Germany), Collegno (Italy), Saline (Michigan, USA) and Bangalore (India). They aresupported by expert and reliable marketing and service specialists at a large number of locations worldwide.System Solutions forGear Cutting MachinesHigh-QualityGear Cutting ToolsThe Liebherr range in the field of gear cutting machinesincludes gear hobbing machines, gear shaping machinesand hobbing and profile grinding machines, all noted fortheir high degree of stability and availability. Liebherr cansupply all technologies required for the manufacture ofhigh-quality gears and is continuously developing thesetechnologies. Particular importance is attached to theenergy efficiency of the machines.Gear cutting machines from Liebherr are supplied torenowned manufacturers of gears and gearboxes as wellas large-scale slewing rings worldwide. They are in demandprimarily from the automotive and construction machinery industries and also increasingly from the windpowerindustry for the manufacture of gears for wind turbines.Liebherr manufactures high-quality precision tools for thesoft and hard machining of gears and all Liebherr gearcutting machines are fitted with these tools. The range alsoincludes Lorenz stock tools and products customised forspecific applications.Liebherr-Verzahntechnik GmbHWerk EttlingenGear cutting toolsHertzstraße 9-1576275 Ettlingen, Germany 49 (0)7243 708-0Fax 49 (0)7243 708-685tools.lvt@liebherr.comLiebherr-Utensili S.r.l.Gear cutting toolsVia Nazioni Unite 1810093 Collegno TO, Italy 39 (0)114 248711Fax 39 (0)114 559964info.lut@liebherr.comPrinted in Germany by Eberl BK 0.2-07.14 enGBLiebherr-Verzahntechnik GmbHMachine tools, automation systemsKaufbeurer Straße 141, 87437 Kempten, Germany 49 (0)831 786-0, Fax 49 (0)831 786-1279www.liebherr.com, e-mail: info.lvt@liebherr.comAutomation Systems for a WideRange of ApplicationsLiebherr has a wide range of products for linear portals,pallet-handling systems, conveyor systems and robotintegration for projects in all areas of production and canprovide above-average availability of systems.www.liebherr.comLiebherr-Gear Technology Inc.Machine toolsLiebherr Automation Systems Co.Automation systems1465 Woodland DriveSaline, MI 48176-1259, USA 1 7344 297225Fax 1 7344 292294info.lgt@liebherr.comLiebherr-Machine Tools India Pvt. LtdMachine tools353/354, 4th Main, 9th Cross, 4th PhasePeenya Industrial AreaBangalore - 560 058, India 91 (0)80 41 273033Fax 91 (0)80 41 272625info.mti@liebherr.comSubject to change without prior notice.
Liebherr-Gear Technology Inc. Machine tools Liebherr Automation Systems Co. Automation systems 1465 Woodland Drive Saline, MI 48176-1259, USA 1 7344 297225 Fax 1 7344 292294 info.lgt@liebherr.com Liebherr-Machine Tools India Pvt. Ltd Machine tools 353/354, 4th Main, 9th Cross, 4t
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Work out the gear ratios of these gears: (numbers inside the circles are the numbers of teeth on each gear) Blue drive gear, green driven gear, pink idler gear, yellow compound gear 1: Simple meshed gear 2: Simple gear train with idler gear 15 3: Compound gear train 4: Choose the correct words to make these statements true for these gear trains.
Chính Văn.- Còn đức Thế tôn thì tuệ giác cực kỳ trong sạch 8: hiện hành bất nhị 9, đạt đến vô tướng 10, đứng vào chỗ đứng của các đức Thế tôn 11, thể hiện tính bình đẳng của các Ngài, đến chỗ không còn chướng ngại 12, giáo pháp không thể khuynh đảo, tâm thức không bị cản trở, cái được
3. Explain what a gear train does? 4. Explain what a simple gear train is? 5. Explain torque? 6. What does a larger gear driving a smaller gear achieve? 7. What does a smaller gear driving a larger gear achieve? 8. What is the driven gear? 9. What is the driver gear? 10. What is the idler gear? 11. What is the calculation for working out gear .
