80S-15贴片机.pdf - 第252页
8 IC Head SIPLACE 80S/F/G Service M anual Edition 01/97 8 - 4 8.2 Struc ture and Function al Groups of th e IC Head Fig. 8.2. 1 Structure of the IC head 1 2 3 A 5 7 6 8 B 9 10 11 12 13 14 15 16 4
SIPLACE 80S/F/G Service Manual 8 IC Head
Edition 01/97
8 - 3
8.1 Position and Environment of the IC Head
Fig. 8.1.1 IC head: Position and environment on 80F automatic placement machines
Key to Fig. 8.1.1
The SIPLACE 80F automatic placement system is equipped with a revolver placement head and an IC place-
ment head. Both placement heads are mounted on a common gantry.
The IC head is fixed to the gantry with two M4 x 16 or M4 x 25 fillister head screws. Two parallel pins ensure
that the IC head is mounted precisely on the gantry.
1 IC head 2 Revolver head
3 X/Y gantry system (gantry 1) 4 Nozzle changer for IC head
5 Flip-chip camera (option) 6 Reject container for IC head
7 Location 2: feeder module 8 Wafflepack changer (option)
9 Location 1: wafflepack magazine for WPC 10 Coplanarity laser module (option)
11 IC camera
8
7
6
5
4
3
9
10
11
1
2
8 IC Head SIPLACE 80S/F/G Service Manual
Edition 01/97
8 - 4
8.2 Structure and Functional Groups of the IC Head
Fig. 8.2.1 Structure of the IC head
1
2
3
A
5
7
6
8
B
9
10
11
12
13
14
15
16
4
SIPLACE 80S/F/G Service Manual 8 IC Head
Edition 01/97
8 - 5
Key to Fig. 8.2.1
8.2.1 Z axis
The z axis consists of the following principal components:
–
Servo motor, tachogenerator and incremental encoder
–
Synchroflex toothed belt
–
Sleeve and
–
End position BERO
The servo motor moves the sleeve in the vertical direction by means of the Synchroflex toothed belt. The res-
olution of the incremental position measurement is 27.7 digits per millimeter travel.The end position BERO
signals the upper sleeve position.
During the approach to the reference point, the z axis moves up to the upper stop, changes direction,
searches for the zero pulse and then moves to the 0 digit position by the amount indicated by the zero point
correction. The gantry axes must not start to move until
–
the z axis is in the 0 digit position and
–
the end position BERO has been activated.
8.2.2 Dr Axis
The dr axis consists of the following principal components:
–
Servo motor with tachogenerator
–
Pair of friction wheels
–
Incremental encoder
The angular resolution of the dr axis is 72,000 digits per 360°, i.e. 1 digit corresponds to 1/200°.
1 Compressed air supply for vacuum generation 2 Sleeve (z axis)
3 2.3 ± 0.2 bar for opening the z axis clamping device 4 Solenoid valve for z axis clamping device
5 Vacuum sensor 6 Lead for vacuum sensor
7 IC head Y0006 conversion board 8 Silencer
9 Fixing screw for IC head 10 Encoder for dr axis
11 Vacuum generator 12 ’Forced air’ solenoid valve
13 ’Forced air’ compressed air supply 14 Servo motor for dr axis
15 Servo motor for z axis
A Manual actuation of solenoid valve for
z axis clamping device
B Viewed in IC head mounting direction