Targeting Zero Overlook of Defects Down to 0.02 mm
Our Lulimo C automated visual inspection system can inspect rotational components in 7 seconds cycle time. Manual inspections of these components are often affected by operator skill levels.
Defects detectable with a depth of
0.02 mm or more
Issues including ironing marks, scrubbing marks, dents, pits, underfills, die attributable defects and surface roughness/unevenness with a depth of 0.02 mm or more can all be detected at high speed on rotational components.
Horizontal scratch
Dent
Underfill
Projection
Surface roughness
Vertical scratch
Examples of targeted components
STEP
1
Setup, adjustment
Setting of defect inspection parameters (performed before shipment)
Our engineers preset optimal inspection parameters using defect limit products. We also offer parameter setting training, which enables operators to make the required settings themselves whenever they inspect new components after system installation.
STEP
2
Move-in & setup
SCREEN engineers also perform setup of new systems, providing customers with a turnkey solution.
STEP
3
Mass production trial
As a final step, our engineers have customers evaluate a fixed volume of target components using their system. They then use this data to perform final adjustment of parameters optimized for mass production.
Inspection
All inspection processes are performed automatically inside the system.
STEP
1
Registration of master images
Master images of approved components can be created in just a few minutes. Comparison with these masters enables even components with large tolerances to be inspected with great accuracy.
STEP
2
Loading
We are able to design automatic loaders that can handle a wide range of components as optional units.
STEP
3
Prealignment
Components loaded into the system are automatically transferred to the prealignment unit. Correction of the rotational axis is then executed to improve inspection accuracy.
STEP
4
Inspection
After prealignment, components are automatically transferred to the inspection unit. This unit is equipped with 7 line cameras that are used to capture images for inspection. The images are then compared with the masters using our proprietary image processing technologies, enabling the detection of defects.
STEP
5
Separation and unloading
Once inspection is completed, accepted and rejected components are judged and sent to their respective unloaders for discharge.
Monitors displayed inspection results
Images with detected defects are displayed in red frames
Enlarged views of defect sites
Defect areas are marked with yellow
Inspection histories are displayed in a list view
STEP
1
Switching of chucks
The chucks in the transfer system and inspection unit are replaced.
If customers specify their component types in advance, we can design common chucks that are able to handle a variety of components.
Setup change
STEP
2
Changing of parameter presets
Parameters for target components are loaded from the system’s operation screen.
Subsidies, tax assistance
Subsidies supporting the improvement of manufacturing, commercial and service businesses (Small and Medium Enterprise Agency)
Tax assistance supporting the growth of small and medium businesses (Small and Medium Enterprise Agency)
Individual subsidy and tax assistance schemes carry specific conditions. Please visit the websites of relevant government agencies for details.
SCREEN’s comprehensive
service network
The highly experienced engineers of SCREEN Group companies provide customers with optimized support from their bases located throughout the world. Lulimo users can rely on the personnel for expert assistance whenever required.
Process leading to installation
We perform inhouse evaluations of all steps from trial assessment of whether defect detection is possible right through to final installation.
Please understand that the way these evaluations are handled may change depending on the target components.
Detection of limit defects*
We first check whether the component shapes and target defects can actually be processed using our systems. If this is possible, we then ask customers to supply defect limit products and around 100 defect-free components. These components are then used to confirm zero overlook on our systems.
Live demonstration &
Facility tour
Customers have the opportunity to visit our facilities and observe the procedure as our demonstration systems perform inspection of their components.
Final decision on installation
* The smallest defects to be rejected.
Automated visual inspection system for rotational components
Lulimo C
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Our proprietary All Angle Multi Shot system enables complete inspection for microscopic defects in a cycle time of just 7 seconds with zero overlook.
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An integrated transfer system allows continuous high-speed processing of components from loading to inspection and finally unloading.
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Surface irregularities of lubricant or bonderizing marks are removed by our proprietary image processing, enabling to reduce excess detection.
Detectable defect sizes
Component sizes
System size
Inspection cycle time
Power supply, utilities
Dents, scratches, underfills, surface roughness and other defects that are at least 0.02 mm deep
Diameters of 30 to 200 mm, maximum length of 250 mm, maximum weight of 8 kg
Approx. 7 seconds per component May vary depending on inspection conditions
2,235 (W) x 1,955 (D) x 2,100 (H) mm, weight of approx. 1,800 kg Not including tower lamp
200 V AC ±10%, 3-phase 60 A
Solve labor shortage
Prevent overlook
Reduce excess detection
Improve quality & reliability
