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you might be able to support. For more information, please feel free to contact us. Contacts are provided in the following pages.

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Contents in this catalogue may be modiﬁed without notice for product improvement.

2016.10J Q A QM 3636

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Processing such as
Machining,Polishing,
Heat Treating

Mass Centering Machine 823LAMM
The latest light weight crankshaft production has become difficult to simultaneously maintain the weight whilebalancing. In order to satisfy both aspects the measurement of the mass center of the crankshaft and processing should be based on the center of mass. With our mass centering 823LAMM we make this processing possible. It consists of measuring station and processing station. It is compatible with direct 3/4 cylinder crankshafts and easily changeable. Additional option is also available.

Measuring Station
The measurement unit selects necessary correction data
based on the car model data of the loaded crankshaf t.
Optional manual setting is also available. Crankshaft is fixedat both ends and rotated to measure the eccentricity of themass center. The measured data
are sent to the processing station to centerdrill each end of thecrankshaft. When the difference
between the geometric centerand mass center eccentricit yamount is over the set amount it
is determined as unacceptable.

Center Hole Processing Station

MassCentering

Our balancing technology will
support yourcrankshaft manufacturing line.

Centering Performance,compared toGeometric Centering●By positioning each end of the crankshaft while center drilling,

The crankshaft is transferred by an in-machine
loader to the measuring station. When loaded thecrankshaft
is driven automatically to measure thecranks
unbalance
during processing. The residual unbalunbala
ance after correction is measured and pass/failstatus is determined. (Shown above is 821LAMC
frictionfrictio drive.)

Correction
StationCor

Manufacturing Line
Processing Quality, Bias

●By optimizing biases, balancing process efficiency and quality isboth center holes will be aligned. This reduces problems when performing following processes which employ chucking on centers.

improved.
●Mass centering reduces the material removal (drilling) required

for final balancing, thereby maintaining the designed mass distribution.

Mass centering not only minimizes both the amountof correction and the final residual unbalance asshown below, it also insures correction fits within
the range of the counterweight correction area.

crankshaft exchangeusing step change

The system has a color TFT display and measurement unit. Setting is done using the touch panel. Setting for each model isdisplayed including the corrected amount based on the final
balance data, bias feedback, and measurement history. Any
problem causing an abnormal operation can be remedied withthe solution shown on the display.

Measuring Station

Our new Mass Centering Machine will improve your manufacturing process.

NewFeatures Direct 3 and 4 cylinder

Measuring Unit MMi-902MS

Recent engine production line requires flexibility to meetthe rapidly changing products.
821/823 LAMC was developed to meet the needs for flexible response. The system requires very little space, fully
automatic measurement, correction and check and possible plan-free layout on the assembly line.

Recent progress in lighter weight and improved quality of engines has brought about reconsiderations in crankshaft balancing. Reduced weight of crankshaft itself causes the counterweight to be smaller. As a result unbalance correction must be minimized.

Material Quality andComposition

The processing station clamps the crankshaft in the same manneras the measuring station and positions each end of the crankshaft independently. The drill units are fixed and aligned. This method positions thecrankshaft using the data sent from the measuring station to optimize the benefit of mass centering while keeping both center holes aligned.

Final Balancing Machine
821 / 823LAMC

FinalBalancing

At the correction station one axis drilling unit is operwith NC control to correct the unbalance.
ated w
The depthof drilling is determined at the measuringdestation.
statio With our new technology chucking force isdramaticallyreduced to where the hydraulic system
dis no longer necessary.

The crankshaf t is trans ferred by the in - machine
loader to the air blow- of f
station to remove any coolant from the drilling operation.

Fully covered processing section
confines the chips producedby center drilling
Flexible positioning of each part typeusing the main loader
Additional options
available for basic
surface processing

Measuring Unit MMi-902C

Geometric Centering
Mass Centering

Microprocessor measurement unit is made up of color TFT display with the computer and measurement unit. Setting is done by touch panel. Data file for each car
model, bias data change, measurement data history are shown. Any problem causing an abnormal operation can be remedied with the solution shown on the display.

Special Features of 821LAMC/823LAMC

Bias

Air Blow
Station821LAMC uses friction drive for mainly direct 3 or 4 cylinder crankshaft assembly lines.
823LAMC uses hook drive for mainly V6 cylinder crankshaft assembly lines.