industry.loccioni.com
SOLUTIONS FOR
SUBASSEMBLIES
Via Fiume 16
60030 Angeli di Rosora, Ancona, Italy
p +39 0731 8161 f +39 0731 814700
info@loccioni.com - www.loccioni.com
SUBASSEMBLIES
Loccioni industry proposes testing benches/lines able to distribute
the controls all along the assembly process increasing quality
and efficiency and reducing the production costs.
Numerous applications have been implemented by Loccioni Home
for components, subassemblies and finished products.
In particular the system has been applied to washing machines’
front panels and washing groups and to dishwashers’ basements.
SOLUTIONS
FOR SUBASSEMBLIES
When a finished product is tested at the
end of the assembly line some negative
aspects have to be taken into account:
>> a large number of pieces are defective
>> the long duration of the traditional testing
>> System customization on customer’s
needs
>> System automation
>> User-friendly interface
(Human-Machine Interface)
system
>> the high cost of the testing2 equipment
To test the subassemblies in a dedicated
>> the use of operators for visual inspection
line can reduce:
>> the final testing time
THE SYSTEM
>> the final testing equipment costs
The integrated systems designed
>> the number of errors at the end of the
and manufactured by Loccioni Home adopts:
>> Machine Vision technology
>> robotized devices
1. Vibration analysis system for washing machines
assembly line
>> the costs related to use of operators
responsible for visual testing
>> sensors and transducer
ADVANTAGES
>> Improvement of production efficiency
3. Inspection of mechanical components
2. Vibration analysis system for refrigerators
and product quality
>> Reliability and accuracy
>> Controls objectivity
>> Personnel cost reduction
>> Integration with other technologies
and in-house instruments
CASE HISTORY - ASSEMBLING AND TESTING LINES OF CONTROL PANELS
In the solution designed and manufactured
by LOCCIONI I HOME the testing line
is composed of the following functional units:
>> a testing group for the complete set
of tests divided in 3 steps:
operation and carries out the video test.
>> Knob: a functional test of the program
from parasite external light.
>> Door lock: verification of the presence
selector knob verifies the torque and
of door lock, the connection to the panel
angular position for setting the different
and the functionality.
washing programs.
>> Pressure Switch test: the pressure-switch
- SW downloading and tampography test
>> I/O: the testing of I/O is executed through
test, is implemented by measuring
- Knob, door-lock, I/O, LED and display test
reading/writing on the memory locations
an increase of pressure created by
- Pressure switch and buttons test
in the control board and through the
a proportional valve in closed-loop with
>> a label printing station with automatic
application of the appropriate electric
applicator;
>> a repairing station
The station carries out the following tests:
>> Control Board Programming, Variant
signals to the inputs and the checking
a pressure transducer.
>> Buttons test: the system tests the
of the appropriate electric values on the
functionality of the buttons (1 to 5)
outputs.
verifying stroke and load required
>> Leds and Display: the station is
>> to commutate. It uses a mechanical
equipped with cameras to verify the
finger in the vertical axis with linear
Coding and Tampography Station: the
correct functionality of the leds and
actuator and load cell.
system downloads the firmware into the
display. The video station is adequately
control board, it makes the variant coding
sheltered in order to protect the test area