Electronic
power steering system, EPS production line successful cases
EPS
by Housing, Sensor, Motor, ECU, assembled Column, etc. Equipment mainly: Spain
- Mapro and Malaysia Flexlink, PLC
models is AB, and PLC is Shared by multiple devices. The production line USES
almost all system functions.
1.
The equipment construction debugging.
In
the construction phase of the production line equipment, iPlant with equipment
suppliers by the interface definition to predefined criteria, for each work
station has realized the mistake proofing, traceability, alarm, parameter control
and equipment from the iPlant by HMI to download all the production process
parameters defined, each time by iPlant will modify parameters automatically
according to need tell the parameters of the latest equipment, and at the same
time will show the corresponding information on HMI operator prompts to
download the latest parameters.
PLC
is a few stand sharing, save investment, but the software performance
requirements.
2.
The interaction and control of key points.
In
ECU assembly station, before the customer requirements in the assembly of ECU
Pin Check, prevent operators will be unqualified ECU assembly, such as needle
slanting, etc. Equipment supplier, therefore, need to use a camera to detect
ECU needle is OK, the ECU is fine products, etc. Due to the camera directly
with iPlant communication is difficult, but want to collect the test results of
the camera, is a difficult problem for iPlant. In order to solve this problem,
use iPlant DT4000 acquisition terminal, through the COM serial data and DI/DO signals
to achieve the collection of ECU test results, when the ECU barcode is sweeping
the equipment will be sent to the ECU barcode through the COM DT4000, when the
ECU testing is complete, the equipment will send DT4000 DI/DO signals, such as
DI/DO 1 for testing OK, DI/DO 2 for test failure, iPlant will Server inside of
DT4000 serial data through Ethernet and DI/DO signals are monitored, or when
the COM DI/DO signals with data, iPalnt the ECU barcode saved to the database
and the test result, when the ECU before assembly standing ready to assemble
ECU, iPalnt will Check whether the ECU for Pin Check qualified parts, if not,
iPlant will tell device to prevent the birth of a defective product.
3.
The other functions of production line.
Barcode
printing, audit, material traceability, and other functions, the data on the PC
back, parts state examination, time synchronization, and other functions are
applied. Each production parts, iPlant will according to the information such
as barcode to check whether the thing belongs to the work station, whether the
state is normal, if not, iPlant will prompt the relevant error message on the
HMI and stop the machine, only normal and belongs to the work station to
continue to produce, even with a bad product, customers can also through iPlant
to rework or scrap the parts. After the production, iPlant will check unload
barcode, production data, and so on to ensure that the parts with production
data is one-to-one, iPlant mistake proofing ability greatly reduce the birth of
the defective product, reduce the risk, but also saves the cost of production.