LS 80-280 F/E | Gear shaping machines

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LS 80 - 280 F/E

Precision. Speed. Quality.

Highlights

metric

imperial

Module - 3.00 - 5.00 mm
3.00 - 5.00 mm
Workpiece diameter - 80 - 280 mm
80 - 280 mm

Space saving

Small but powerful

User-friendly

Intuitive for fast setup and programming

Top quality

High-grade components and clever design

Versatile

Multi-functional and proficient production of all sorts of gears

Machine design

Our Liebherr gear shaping machines are optimally adapted to the diverse requirements of universal applications. Their axially movable shaping head slide enables extremely efficient production of very diverse components with minimum setup time. The variable machining position enables optimum alignment of the shaping head depending on the clamping fixture used. Thanks to the variable machining positions, multiple gearings can be machined within a single clamping fixture.

Our machine concept is suitable for wet machining as well as dry machining.

For economical and efficient production, we recommend the ringloader concept, which enables fast loading and unloading of workpieces. In addition, Liebherr offers various external automation systems such as a plastic chain conveyor and chain conveyor storage mounted directly on the machine.

Quick summary of the highlights of the gear shaping machines

Vertically movable shaping head
SK 40 tool interface
Small footprint
Available with mechanical helical guide (SH70M) or electronic helical guide (SH70E)
Highly efficient automation system
Optional: twin-track cam system, swiveling machine column, automatic stroke length adjustment

Conclusion: The perfect machine for small and medium-sized workpieces.

Your advantages when gear shaping with Liebherr

Versatile machining of external and internal gears
Zero-backlash workpiece drive for optimum quality
Thermosymmetric design for the highest quality and process requirements
High productivity with up to 1,500 double strokes per minute
Maximum ease of setup thanks to NC axes, clamping fixture quick change and gripper quick change system
Machine, tool and process from a single source

Versatile applications of Liebherr gear shaping machines

The LS 80-280 F/E series gear shaping machines are very versatile and are ideal for demanding applications such as:

Components for maximum power density
Complex geometries
Gear shaping and upshaping gears
Single index shaping of slots and complex profiles
Interfering contours and limited overrun
High flexibility even for small batch sizes

Advantages of a vertical shaping head slide in machining

Machining of cluster gears, stepped gears and segment gears in one clamping fixture

Improved production quality due to complete machining in one clamping fixture without reclamping
Large travel range for stroke position adjustment, which reduces fixture setup time
Use of the maximum stroke length over the entire stroke position adjusting range without impairment to the stroke position or stroke length
Cost reduction thanks to reduction of idle times, which means less time needed for retooling and fixture setup

Precise and productive machining: SH70M shaping head

The SH70M shaping head offers maximum mechanical precision, comparable to a Swiss watch mechanism. With an impressive stroke number of up to 1,500 double strokes per minute, it guarantees maximum productivity.

In addition, the shaping head can be equipped with a twin-track cam, which enables quick and automatic switchover from external to internal gears without manual intervention.

Mechanical helical guides are also available for the LS series. This new design is compatible with the old variant, which means that existing helical guides and back-off cams from older LSF machines can still be used.

Minimal setup times and flexible machining positions: the SH70E shaping head

The SH70E shaping head is equipped with an electronic helical guide which enables the simple and effortless setting of lead and angle modifications. The direct drive means it has zero backlash and is virtually wear-free.

Maximum flexibility thanks to electronic helical guide

Modifications can be easily programmed
Excellent lead quality thanks to the micron-precise correction options (DIN 1 to 3)
Reasonable chip formation leads to very good profile quality (S stroke)

Shaping head

Possible lead modifications:

Symmetrical crowning
Symmetrical taper
Asymmetrical crowning and lead angle modifications

Focus on technological highlights

Gear shaping of a sprockets on a crank shaft

Efficient and cost-saving shaping with wafer tools

Liebherr’s innovative wafer tools are the perfect complement for shaping machines and enable significant reductions in production costs. Clamping thin wafer discs in a special frame and then installing them in the machine provides countless advantages:

No machine adjustment necessary after switching out the wafers within a workpiece lot
Economic series production
Optimal process reliability
Easy machine adjustments and reduced setup times
No machine adjustment necessary after switching out the wafers within a workpiece lot

Maximum user-friendliness

The optimized LHStation & LHMobile control panel

With the control panel, Liebherr intelligently divides programming and machine operation between two of the system components: “LH Station,” the large, fixed monitoring unit for data input and process monitoring, and “LH Mobile,” the standardized, mobile handheld unit with context-sensitive user guidance during setup. Both devices are equipped with both a multi-touch interface and tactile elements for optimal operational speed and operational safety.

LHMobile – mobile handheld terminal

Standard 10 inch multi-touch
Context-sensitive views such as PLC/NC buttons and program statuses
Wired signal transmission for optimal safety

The programming system from Liebherr: 25% faster setup time

With the LHGearTec Software, the user is constantly guided by the system through anything from workpiece and tool data and workpiece correction to process monitoring. This user guidance was developed through intense collaboration between users and designers.

Further information

Technical data

Module	3.00 - 5.00 mm
Workpiece diameter	80 - 280 mm

Variants

	LS 80 - 280	LS 180 - 280 F	LS 180 - 280 E
Module (mm)	3.00 / 5.00	5.00	5.00
Workpiece diameter (mm)	80 / 180 / 280	180 / 280	180 / 280
Stroke length (mm)	30 / 55	70	70
Max. stroke rate (DH/min)	3,000 / 1,500	1,500	1,500

Automation & features

Plastic chain conveyor (KKB)

The plastic chain conveyor is available in the standard model for workpiece weights up to 20 kg and, in the heavy-duty version, up to 180 kg and is designed for contactless transport of any workpieces with irregular geometric shapes. Workpieces are transported on pallets. Thanks to the queue effect, everything runs smoothly, regardless of the cycle.

Chain conveyor storage (KSR)

The small, compact KSR chain conveyor storage enables storage and transportation of workpieces up to 180 mm in diameter and 300 mm in length. The maximum total load is 75 kg. This compact workpiece storage unit can also serve as an additional buffer option, for example with a robotic workpiece feed.

Easy to maintain

Optimum machine accessibility during maintenance work is a prerequisite for ensuring productivity. For this purpose, all necessary maintenance access points are equipped with doors. Moreover, to enable quick and easy additional monitoring of specific statuses, window panes are inserted into the maintenance doors. This means the machine operator or maintenance personnel can read the signals from outside in very little time. An enclosure for the hydraulics has also been integrated into the new machine design. This ensures sustainable reductions to hydraulic power unit noise.