LFG-3540

www.luren.com.tw

CNC Gear Form Grinding Machine

Machine Introduction

Presentation of High Precision and the Best Performance-To-Price Ratio

LFG-3540

CNC Gear Form Grinding Machine Luren Precision Co., Ltd. has been dedicating to the R&D of gear machining since 1994. We have extended the cut-tools technologies of Mechanical and Research Laboratories, ITRI, and integrated the research resource from the best universities, built the production lines of hobs and shaving cutters, and successfully and stably sold our products to European, American and Asian markets. In grinding machines, Luren Precision produces the gear form grinding machines, worm thread grinding machines and cutting tools sharpening machines; and earns outstanding 1

reputations in the fields. The LFG-3540 Gear Form Grinding Machine applies the FANUC controller and high-speed grinding spindle; through the Luren Precision-developed intelligent conversations window software, it can flexibly output the required tooth profile and grinding parameters. The workable machining workpieces include the involute gears and cycloidal gears; the high-efficiency and high precision expressed from the products are equivalent to worldwide-top brand's ones; LFG-3540 is your best choice.

Machine Features

High Rigidity and Stability

CNC Axes Descriptions X-axis

Wheel axial slide

Y-axis

Wheel radial slide

Z-axis

Workpiece axial slide

A-axis

Workpiece Indexing

B-axis

Wheel Swiveling

N-axis

Grinding spindle

X

A

B N

Z

■

■

■

Y

LFG-3540 uses stable frame structure, high rigidity and high efficiency to earn wide reputation worldwide. LFG-3540 applies the globally famous FANUC controller and servo & directdrive motors; each axis can move simultaneously and receive a highprecision performance. The Luren Precision-developed intelligent conversations window software supports the complete machining process. Machine can generate NC program automatically through the parameters-input and setting of grinding conditions via the conversation, and thus increases the working efficiency significantly. 2

Unit Introduction

Unique Design Brilliant Performance

Except the standard mechanical functions LFG-3540 could also option the Luren-developed special mechanical functions, which including rotary dresser unit, automatic electric adjustment of the tailstock, automatic positioning and on-line grinding wheel balance system.

Built-in grinding spindle 220G(Outside diameter 220mm)

170G(Outside diameter 170mm)

Equipped with lager high-precision performed bearings. The stronger cutting force could improve the processing efficiency.

HSK grinding wheel arbor for quick change-over, suitable for smaller quantity and versatile gear grinding. A smaller grinding wheel is mounted to grind smaller gears, or gears with a close shoulder. HSK arbor

Dressing unit Diamond point dressing unit (standard equipment)

Disk dressing unit (optional) Rotary dresser has long lifetime, high stability and makes little tooth-profile deviation.

Tailstock adjustment unit Manual adjustment (standard equipment)

Electric adjustment (optional)

Special mechanism Automatic positioning (optional)) Enable to detect the excessive run-out of the blank before grinding and reduces the installation time of the operator. 3

On-line grinding wheel balance system (optional) Easy to correct the run-out of the wheel.

Software Technology

Innovative R&D Intelligent NC Technology

Intelligent Software Technology Luren Precision has developed the gear form grinding software, all inputs apply the dialog blocks that enable operator to set gear data and grinding process parameters in a flexible matter; the software will generate complete NC program automatically and guide operator to run the grinding process.

Involute gear

Optional to provide anti-twist for gear tooth flank (Bias-free) function.

Cycloidal gear

Gear data Follow workpiece drawing to input the gear parameters and automatically calculate the matched gear profile. Freely zoom-in/out the graphics to check/confirm gear-profile details.

Gear data According to workpiece drawing to input the gear parameters and automatically calculate the matched cycloidal gear profile and simulate assemble of the pin and cycloidal gear.

Profile modification The drag-control-point curve facilitates operator to modify gear profile and lead crowning according to customer's requirement

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Machining

Machining Examples Gears are widely used in daily life. The main purpose of the gears is for the power transmission via different gear pairs to match of some change from the torque, speed and direction. The Involute gear characteristics compared to the other type gear profiles are easier to be machined, high replaced, heavy loading and easier to be assembled. The Cycloidal gear is used in high-precision cycloidal reducer which is also common in the robotic arm.

Master gear

Cluster gear

Copper electrode

Cyclodial gear

The master gears can be used to check and correct gear measuring machine, also can be used in gear meshing test to check the workpiece to comply with the accuracy requirement.

The EDM can machine special material workpieces. The copper is the normal electrode material in EDM.

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In order to increase the gear strength and reduce assembly error, gears are often designed on the gear shaft.

Cycloidal reducers are capable of higher gear ratio, smaller volume and lower noise.

Mechanical Specifications

Top-of-the Line Equipment and Quality Assured

MAIN SPECIFICATIONS Grinding wheel spindle motor Min. / Max. workpiece outside diameter

170G 30mm / 400mm

Max. module

M8 (DP3.2)

Teeth range Max. tooth depth Helix angle MECHANICAL SPECIFICATIONS Min. distance between centers (standard) Max. distance between centers (standard) Max. distance between centers (through-bore in workhead) Max. face width Max. axial slide travel (Z-Axis) Max. axial slide travel (Z-Axis) A-axis can accommodate a maximum outside diameter of the workpiece Max. table load (workpiece with fixture) GRINDING WHEEL SPECIFICATIONS Min. wheel root diameter/Max. wheel outside diameter Max. grinding wheel thickness Max.rpm of grinding spindle Drive power of grinding spindle ELECTRIC SYSTEM Voltage Current requirement Ambient Temperature Max. load of machine CNC CONTROLLER

9~999 18mm ±45°

220G 30mm / 400mm M8(DP3.2) (diamond point dresser) M12(DP2.1) (diamond rotary disc dresser) 9~999 27mm ±45°

14mm 685mm

80mm 750mm

1200mm

1200mm

(B-Axis 0º ) 400mm (B-Axis 0º )) 650mm (B-Axis 45º )) 210mm

(B-Axis 0º ) 400mm (B-Axis 0º ) 650mm (B-Axis 45º) 235mm

130mm

130mm

80kg

80kg

50mm / 230mm 30mm 10000 rpm 20 kW

210mm / 320mm 40mm 4000 rpm 17kW

3Ø 220V 50 Amp 10°C ~ 40°C (50°F ~ 104°F) 20 kVA FANUC

DIMENSIN & WEIGHT

L 4650 x W 3850 x H 2365mm L 184” x W 152” x H 94” (800mm (32”) on each dimension is required for maintenance). 8500kg 18700lb

Space Requirement Weight of basic machine

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

Travel of each axis

(Top view) No. A B C D E F G

170G 649 -1 216 25 315 685 14

(Front view)

220G 736 86 241 85 735 750 80

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www.luren.com.tw [email protected] Headquarters

No 1-1, Li-Hsin 1st Rd., Hsinchu Science Park, Hsinchu 30078, Taiwan Te l : +886-3-578-6767 Fax: +886-3-578-4933

Shanghai Branch

Luren Precision Machinery (Shanghai) Co., Ltd. 6B, Building 2, 401, CaoBao Rd., Xuhui Dist., Shanghai, 200233 China Te l : +86-21-5497-1105 Fax: +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, Japan Te l : +81-6-6100-1168 Fax: +81-6-6100-1170

Chicago Branch

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

6/2016