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Generating grinding up to module 14mm
Generating grinding workpieces up to 1,200mm in workpiece diameter
Workpiece automation up to a workpiece diameter of 800mm and a workpiece weight of 1,000kg
Machine design
The new LCS Series 3 provides a machine system for the hard-fine machining of gears, which is characterized by its outstanding efficiency and versatility: generating or profile grinding with dressable or electro-plated CBN tools.
Gear grinding with dressable worms or discs has been a successful and well established technology for many years. Today, with the use of sintered corundum tools, it has reached a remarkable performance level.
With the LCS series, Liebherr enables the user to use both technologies without limitation, unlocking completely new possibilities in particular generating grinding the sorts of larger gears used in the wind power industry, for example.
The grinding heads, with their proven design principle, provide motor spindle speeds up to 12,000rpm. Their high degree of thermal stability is essential for achieving unparalleled quality.
Active tool holding on both ends guarantees excellent tool rigidity. This allows for feed rates up to 10m/min and a cutting speed of 100m/s.
With the two-station ringloader, workpieces up to 800mm in diameter can be automatically loaded and unloaded. Storage systems are available for unmanned operation of the machine.
Axes
A1 - swivel movement of tool | B1 rotary movement of tool | B3 - dressing tool axis | C1 - table axis | C3 - rotary movement of ringloader | C5 - dresser swivel axis | V1 - tangential movement of tool | X1 - radial movement of machine column | Z1 - axial movement of tool | Z4 - vertical motion of tailstock | Z5 - vertical motion of ringloader
Double dresser
Double dresser for dressing grinding worms or form grinding discs with two independent, frequency-controlled dressing spindles.
Functional principle:
- Single flank dressing
- Dressing of the tooth tip via rotating radius roller
- Pressure angle correction via C5 axis
Advantages:
- Easy to use universally
- With radius control, the sharp-edged transition from the tooth flank into the area of the tooth root can be avoided
- Longer radius roller life compared to dressing plate
- Avoidance of grain chipping in the area of the grinding worm head means greater process stability
Application examples
Video
Generating grinding large modules on the LCS 700 generating and profile grinding machine
This YouTube video is provided by Google*. If you load the video, your data - including your IP address - is transmitted to Google and may be stored and processed by Google inter alia in the USA. We have no influence over further data processing by Google.By clicking on "Accept", you consent to the transmission of data to Google for this video in accordance with Art. 6 (1) (a) GDPR and at the same time explicitly consent to the transfer of data to the USA in accordance with Art. 49 (1) (a) GDPR. If you no longer wish to consent to each YouTube video individually in the future and wish to be able to load the videos without this blocker, you can also select "Always accept YouTube videos" and thereby consent to the associated data transmissions and transfers to Google and to the USA for all other YouTube videos which you open on our website in the future. Please note that, in the opinion of the European Court of Justice, there does not currently exist an adequate level of data protection in line with EU standards in the USA, and at present we cannot provide appropriate safeguards to protect your data and offset this shortcoming.Possible risks to you of data transfer to the USA are that access by state authorities cannot be excluded and that your data could be processed for reasons of national security, law enforcement or for other purposes in the public interest of the USA, possibly without you being informed separately and without enforceable rights and effective legal remedies being available to you.You can withdraw consent that you have given at any time with future effect via the settings. For further information, please see our Data Protection Declaration and Google's Privacy Policy.*Google Ireland Limited, Gordon House, Barrow Street, Dublin 4, Ireland; parent company: Google LLC, 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA
Dressing, grinding and loading on the LCS 600 generating and profile grinding machine
This YouTube video is provided by Google*. If you load the video, your data - including your IP address - is transmitted to Google and may be stored and processed by Google inter alia in the USA. We have no influence over further data processing by Google.By clicking on "Accept", you consent to the transmission of data to Google for this video in accordance with Art. 6 (1) (a) GDPR and at the same time explicitly consent to the transfer of data to the USA in accordance with Art. 49 (1) (a) GDPR. If you no longer wish to consent to each YouTube video individually in the future and wish to be able to load the videos without this blocker, you can also select "Always accept YouTube videos" and thereby consent to the associated data transmissions and transfers to Google and to the USA for all other YouTube videos which you open on our website in the future. Please note that, in the opinion of the European Court of Justice, there does not currently exist an adequate level of data protection in line with EU standards in the USA, and at present we cannot provide appropriate safeguards to protect your data and offset this shortcoming.Possible risks to you of data transfer to the USA are that access by state authorities cannot be excluded and that your data could be processed for reasons of national security, law enforcement or for other purposes in the public interest of the USA, possibly without you being informed separately and without enforceable rights and effective legal remedies being available to you.You can withdraw consent that you have given at any time with future effect via the settings. For further information, please see our Data Protection Declaration and Google's Privacy Policy.*Google Ireland Limited, Gordon House, Barrow Street, Dublin 4, Ireland; parent company: Google LLC, 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA
GH 3.0
Speed (rpm): 12,000
Max. cutting speed (m/s): 80
Max. grindable module generating grinding (mm): 12
Max. grindable module profile grinding (mm): 20
Max. shift distance (mm): 320
Dimensions of grinding worm (DxLxW) (mm): 320x230x110
GH 320 CB
Speed (rpm): 10,000
Max. cutting speed 80m/s
Max. generating grinding module 14mm
Max. profile grinding module 20mm
Max. shift distance (tangential distance) 350mm
Dimensions of grinding worm (DxLxW) (mm): 320x250x110
Feature: For this grinding head, various different internal grinding arms are available
On-board inspection: Gear checking in the machine
All grinding heads can be equipped with an optional swivel-in probe for gear checking.
Gear measurement
- Profile and lead
- Concentricity, single and cumulative pitch
- Twist check
- Measuring system for grinding stock removal
- Rolling measurement
- Determining dimension measurement
Video
On-board inspection on the LCS 600 generating gear grinding machine
This YouTube video is provided by Google*. If you load the video, your data - including your IP address - is transmitted to Google and may be stored and processed by Google inter alia in the USA. We have no influence over further data processing by Google.By clicking on "Accept", you consent to the transmission of data to Google for this video in accordance with Art. 6 (1) (a) GDPR and at the same time explicitly consent to the transfer of data to the USA in accordance with Art. 49 (1) (a) GDPR. If you no longer wish to consent to each YouTube video individually in the future and wish to be able to load the videos without this blocker, you can also select "Always accept YouTube videos" and thereby consent to the associated data transmissions and transfers to Google and to the USA for all other YouTube videos which you open on our website in the future. Please note that, in the opinion of the European Court of Justice, there does not currently exist an adequate level of data protection in line with EU standards in the USA, and at present we cannot provide appropriate safeguards to protect your data and offset this shortcoming.Possible risks to you of data transfer to the USA are that access by state authorities cannot be excluded and that your data could be processed for reasons of national security, law enforcement or for other purposes in the public interest of the USA, possibly without you being informed separately and without enforceable rights and effective legal remedies being available to you.You can withdraw consent that you have given at any time with future effect via the settings. For further information, please see our Data Protection Declaration and Google's Privacy Policy.*Google Ireland Limited, Gordon House, Barrow Street, Dublin 4, Ireland; parent company: Google LLC, 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA
Mobile meshing sensor
Technology
Prepared for the future
Gearing types
- Asymmetric profile
- Beveloid gears
- Double helical gears
- Cycloidal gears
Gear modification
- Profile and lead modification
- Free flank form
Generating grinding asymmetric gears
Asymmetric gears compensate for unequally distributed loads.
The advantages of asymmetric gears are obvious:
- Reduced tooth root clamping forces and Hertzian flank stresses
- Improved specific sliding
- Increased surface durability and tooth root strength
- Increased power density (load capacity in relation to gear size)
- Longer service life
- Increased efficiency
- Reduced noise and vibration excitation
- Increased operational reliability
Requirements when generating grinding asymmetric gears
Machine technology:
- Centering of the dresser/grinding worm
- Centering of the asymmetric grinding worm/workpiece
- Initial profiling and tracking of the asymmetric profile at every dressing cycle
- Precise control technology for dynamic tooth flank contact sequences
Technology:
- Coordination of dressing and grinding parameters
- Selection of appropriate grinding worm specifications
Topological modifications
- TF twist-free grinding
- DFT deviation-free topological grinding
- GER generated triangle-shaped end relief
Modifications for noise reduction
- SSG noise-reduction shift strategy
- NEO noise excitation-optimized modifications
Video
Generating grinding and dressing on the LCS 800 generating gear grinding machine
This YouTube video is provided by Google*. If you load the video, your data - including your IP address - is transmitted to Google and may be stored and processed by Google inter alia in the USA. We have no influence over further data processing by Google.By clicking on "Accept", you consent to the transmission of data to Google for this video in accordance with Art. 6 (1) (a) GDPR and at the same time explicitly consent to the transfer of data to the USA in accordance with Art. 49 (1) (a) GDPR. If you no longer wish to consent to each YouTube video individually in the future and wish to be able to load the videos without this blocker, you can also select "Always accept YouTube videos" and thereby consent to the associated data transmissions and transfers to Google and to the USA for all other YouTube videos which you open on our website in the future. Please note that, in the opinion of the European Court of Justice, there does not currently exist an adequate level of data protection in line with EU standards in the USA, and at present we cannot provide appropriate safeguards to protect your data and offset this shortcoming.Possible risks to you of data transfer to the USA are that access by state authorities cannot be excluded and that your data could be processed for reasons of national security, law enforcement or for other purposes in the public interest of the USA, possibly without you being informed separately and without enforceable rights and effective legal remedies being available to you.You can withdraw consent that you have given at any time with future effect via the settings. For further information, please see our Data Protection Declaration and Google's Privacy Policy.*Google Ireland Limited, Gordon House, Barrow Street, Dublin 4, Ireland; parent company: Google LLC, 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA
Automation
Available for LCS 600, LCS 700 and LCS 800
Manual loading or loading via robot NC lifting station
Heavy-duty conveyor
Ring magazine
Technical data
| Variants | LCS 600 | LCS 700 | LCS 800 | LCS 1000 | LCS 1200 |
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