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CNC Continuous Generating Gear Grinding Machine

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Through many years of our passion to manufacture h igh qua l i ty products and our unwaver ing commitment to our customers to deliver advanced high precision CNC machines, LUREN's passion for gear products has once again yielded our most advanced machine to date, the LGA-3020 CNC Continuous Generating Gear Grinding Machine. The LGA-3020 uses a Microsoft Windows© based Luren developed gear grinding software to communicate directly to a SIEMENS advanced CNC controller. Together they are able to deliver an easy to use operating system that can rival any in the world. Our software will be able to drastically cut down on the amount of actual CNC knowledge your operators need to be able to effectively run our LGA-3020. Less training time means easier cross training between operators, resulting in more production time for your company. Our combination of advanced

technological components and our cutting edge software will rival any CNC continuous generating gear grinding machine in the world.

Since 1994 Luren Precision has been delivering high quality and highly reliable products but what really sets Luren apart from our competitors is our ability to work hand in hand with our customers to offer support, assistance, and knowledge to help you get the job done. From the hobs, shaper cutters and shaving cutters we produce to our CNC tool sharpening machines and CNC gear grinding and CNC worm grinding machines, Luren uses only the finest materials, components and electrical components in every product we make. We proudly stand behind every product we make and hope to be a valuable partner in your pursuit of efficient profitable gear manufacturing.

Advanced Luren/Siemens CNC Control for Maximum Productivity

LGA-3020 CNC Continuous Generating Gear Grinding Machine

Machine Introduction

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CNC Axes Descriptions

■ LGA-3020 In an effort to further improve the LGA design, Luren has enhanced its mechanical analysis software and made machine structural improvements to further increase machine functionality and stability.

■ LGA-3020 is equipped with the most advanced SIEMENS CNC controller available and the high precision electronic gear box module supplied by Siemens. Also integrated in the machine are an 10-axis close-loop servo control system and a direct drive motor such that all axes move simultaneously and very accurately.

■ LUREN's intelligent gear grinding software is a Windows-based interface which has been carefully designed to support the complete grinding process. The operator does not need comprehensive CNC training to operate the LGA-3020 since Luren's grinding software interfaces with the Siemens CNC controller to calculate all the necessary data to complete the CNC program.

Efficient Gear Grinding through Advanced Technologies

A-axis Swivel AngleB-axis Grinding SpindleC-axis Workpiece SpindleX-axis Grinding Radial SlideY-axis Workpiece Horizontal SideZ-axis Workpiece Axial Slide

A1-axis Rotary Dresser Lead Angle Rotation

B1-axis Rotary Dresser SpindleX1-axis Dressing Radial Slide

Y1-axis Dressing AxialSlide

Z1-axis Tailstock AxialSlide

Z1

X1

B1

Y1A1 A

X

Y

CB Z

Machine Features

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Dressing DeviceEquipped with a single diamond profile Rotary dresser, the dressing device is suitable for multi-threads which can increase accuracy of the profile, decrease dressing time and improve production efficiency and productivity.

Workpiece Spindle & Grinding SpindleLGA-3020 is equipped with high speed spindles. The speed of grinding wheel spindle can reach up to 80M/sec. Together they work in concert to increase gear production efficiency and accuracy. Meanwhile, the built-in automatic dynamic balancing system acts to reduce deviation caused by dressing or grinding.

Premium Components Deliver Superior ResultsComponents

Advanced, efficient and precise components coupled with an active smart dialogue Luren developed gear grinding software

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Windows-based Operating SystemLuren's generating grinding software includes gear data input, tooth flank modification, tool setting, corrections, and machining process editing. Each of these categories offers interactive dialogues and error feedback for program assistance. The operator can easily add the necessary gear data and the grinding requirements to visually see the grinding program created. Develop the software under the Microsoft Windows-based environment, unrestricted by the CNC controller supplied operation panel, Luren offers you more abundant and efficient human-computer interface. After completing the required information in the Luren software all of the NC process steps will be generated automatically. This allows operators to run the machine with little to no CNC experience, an amazing benefit for such an advanced machine.

Tooth Flank ModificationThe tooth flank modification module provides a convenient way to adjust the gear flank curve by using the mouse on the curve itself or to input the new value in its designated field. This allows for quick and easy modifications within Luren's software.

Smart Dialogue Windows-based Software

Innovative CNC ControlSoftware Technology

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Machining ProcessMachining process module allows operators arrange actual work schedule easily by clicking and dragging the items that the operator is looking to change. This final grinding plan can also be saved for future use.

Tool SettingThe tools setting module covers all machining tools such as grinding worm, rotary dresser, etc. To complete this step the operator only needs to input the tool data and store the data. This is a very convenient way to avoid tooling management mistakes that can contribute to machine down time.

CorrectionsThe corrections module can effectively eliminate installation errors due to operator error in the set-up of workpiece, grinding wheel or worm wheel. The operator can enter the grinding correction value obtained from the on-board measurement system to produce a high quality finely ground gear.

Software Technology

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Engineered for Reliability and PrecisionMechanical Specifications

GEAR SPECIFICATIONS LGA-3020

Max. workpiece outside diameter 300 mm 11.8”

Min. workpiece root diameter 10 mm 0.3”

Max. module M 5 DP 5

Helix angle ±45°

MECHANICAL SPECIFICATIONS

Max. slide travel for Z-axis 200 mm 7.8”

Drive power of workpiece spindle 20 kW 26 Hp

Max. table load (workpiece with fixture) 50 kg 110 lb

GRINDING WHEEL SPECIFICATIONS

Min. /Max. Grinding wheeloutside diameter 220 mm / 275 mm 8.6” / 10.8”

Max. grinding wheel thickness 160 mm 6.3”

Max. speed of grinding wheel 80M/sec

Drive power of grinding wheel 25 kW 33 Hp

Max. grinding wheel teeth number 9

ELECTRIC SYSTEM

Voltage 3Ø 380V

Current Requirement 85 Amp

Ambient Temperature 10°C ~ 40°C 50°F ~ 104°F

Max. Load of Machine 56 kVA

CNC CONTROLLER

SIEMENS SINUMERIK 840D sl

DIMENSION & WEIGHT

Space RequirementL 3700 x W 5200 x H 2630 mm L 146” x W 205” x H 104”(800mm (32”) on each dimension is required for maintenance).

Weight of Basic Machine 5500 kg 12125 lbs

Note: The specifications are subject to the contract, as well as new technology and industrial advancements available.

02/2017

www.luren.com.twsales@luren.com.tw

HeadquartersNo 1-1, Li-Hsin 1st Rd., Hsinchu Science Park, Hsinchu 30078, TaiwanTe l : +886-3-578-6767Fax: +886-3-578-4933

Shanghai Branch

Luren Precision Machinery(Shanghai) Co., Ltd.6B, Building 2, 401, CaoBao Rd.,Xuhui Dist., Shanghai, 200233 ChinaTe l : +86-21-5497-1105Fax: +86-21-5497-1095

Osaka Branch

Luren Precision (Japan) Inc.Tec-Shin Osaka BLD. 3F, 4-2-2, Kikawahigashi, Yodogawa-ku,Osaka-shi, Osaka, 532-0012, JapanTel : +81-6-6100-1168Fax: +81-6-6100-1170

Chicago Branch

Luren Precision Chicago Co., Ltd.707 Remington Road, Suite 1, Schaumburg, IL 60173, USATel : +1-847-882-1388Fax: +1-847-882-1933www.lurenusa.com