MEC-CP842-1.0E.pdf - 第30页
The Mach ine >> Functions of Each Part 3-8 MEC-CP842-1.0E S t ations 1-16 Stations 1-16 represent the positions of the 16 placing heads. In this manual, “Sta- tion” is abbreviated as “ST”. The functions of each of …
The Machine >> Functions of Each Part
MEC-CP842-1.0E 3-7
3.2 Functions of Each Part
3.2.1 Parts Mounting System
Cam box
The cam box system comprises a cam axis motor, index units, cam axes, cam levers,
and air cylinders.
Index units
Two index units are housed in the cam box. One is used to index the nozzle shaft
clutch, and the other is used to index the nozzle holder.
Placing heads
There are a total of 16 placing heads mounted around a single rotary head. The plac-
ing heads comprise nozzles, shafts, and holders. Each placing head is fitted with six
nozzle types, with the appropriate nozzle being selected in accordance with the size of
the part which is to be placed. Placing heads pick up parts from the feeder, hold the
parts during vision processing, and then place the parts on a panel.
C746M1007
Cam box
Index units
Placing heads
Stations 1-16
Feeders
Tape cutter
Pallet supply device
*PCU (Pallet Change Unit)
Parts camera
Mark camera
Carrier loader
CP-842E/CP-842ME
Part placement system
Part supply system
Vision system
Panel conveyance
system
Electrical control
system
Pneumatic control
system
Machine functions
Operation panel
Control box
Servo box (Servo BKT)
UPS (Uninterrupted Power Supply)
unit
*:CP-842ME Option
The Machine >> Functions of Each Part
3-8 MEC-CP842-1.0E
Stations 1-16
Stations 1-16 represent the positions of the 16 placing heads. In this manual, “Sta-
tion” is abbreviated as “ST”. The functions of each of the 16 stations are explained
below.
ST1: Picks up parts from the feeder, indexes the feeder, and offsets the NY-
axis pickup position.
ST2: Checks for the presence of large sized parts. Also performs pre-rota-
tion (PQ) operations. The pre-rotation function rotates parts in
advance to a position near the placement angle specified in the place-
ment program. Pre-rotation occurs in 90-degree increments.
ST5: Two CCD cameras (Wide View and Narrow View) check the presence
and pick-up condition of the parts.
ST6: Measures the height of parts which the nozzle has picked up (option).
Measures the length of the nozzles (option).
ST8: Performs fine-rotation (FQ) operations. Rotates a part to its final
placement angle based on the vision processing results at ST5.
ST9: Places parts on the panels being produced. Parts rejected during
vision processing at ST5 are not placed.
ST10: Performs reverse pre-theta (PQ) and fine-theta (FQ) rotation opera-
tions. Also checks the nozzle’s origin position.
ST11: Verifies that nozzles lowered for part placement have been raised
again, and checks the nozzle “Holder A” position for the production log.
ST13: Rejects parts deemed defective by the vision check at ST5.
ST14: Rotates the rotary holder to select among the 6 nozzles.
ST15: Checks the positions of the 6 nozzles after nozzle changes.
3.2.2 Parts Supply System
Feeders
The feeders supply taped parts to ST1 where they are picked up. The CP-842E/842ME
uses WC feeders for CP machines. When using part reels 13-inches or larger, feeders
with CP-7/CP-8 exclusive reel holders are required.
Waste tape disposal unit
The waste tape disposal unit is located beneath ST1 of the placing head, and consists
of upper and lower cutters which cut the waste tape fed from the feeder. The cut
waste tape is then carried through a vacuum duct to the waste tape box at the bottom
of the machine.
Device tables
Device tables hold feeders and also are used for transport. The two device tables move
on the D-axes as instructed in the production program.
The Machine >> Functions of Each Part
MEC-CP842-1.0E 3-9
The CP-842ME has an option for pallet tables that can be used to enable batch setting
and removal of feeders.
PCU (Pallet Change Unit)
The PCU is used as a dolly for setting and removal of pallet tables.
3.2.3 Vision System
Parts camera
This CCD camera checks the size and shape of picked up parts.
Mark camera
A mark camera comprises a CCD camera, a light, and a mounting bracket. After the
CCD camera reads the fiducial marks on the panels being produced, the coordinates
are automatically corrected (offset) in accordance with internal calculations.
3.2.4 Panel Conveyance System
Carrier loader
The machine’s sequencer loader conveys panels between the in-conveyor, the XY-table,
and the out-conveyor, by way of panel clamp units (carriers). The in and out-carriers
are both operated by air cylinders in accordance with the placing program.
In-conveyor: Conveys the panel into the machine and transfers it to the in-carrier
by means of the in-lifter.
In-carrier: Transfers the panel from the in-conveyor to the XY-table.
XY-table: Clamps the panel in position and moves it to and from the position for
placement.
Out-carrier: Transfers the panel from the XY-table to the out-conveyor.
Out-conveyor: Conveys the panel to the next machine in the line.
3.2.5 Electrical Control System
Notes Regarding CP-842E/842ME Machine Operation
Absolute encoders are used on all servo motors on the machine.
The wire cable connectors on the servo motors should not be removed. If certain
cables are disconnected, then calibration data will have to be remeasured.
Calibration data measurement is also required at the following times.
•After replacing the motor.
•After disconnecting the encoder cable between the motor and servo amplifier
•If the backup battery in the servo amplifier discharges below a certain voltage
Servo zero setting is not required.