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8 Gantry 8.2 Overall Gantry Design 8.1.3 Y-Axis Mechanical Structure 136 Student Guide SIPLACE D-Series (FSE) Overall Gantry Design Assembly D4/D4i D3 D2/D2i D1/D1i D1/D1i single head Gantry Cast gantry HS CFK06 gant ry …

8 Gantry

8.1.3 Y-Axis Mechanical Structure 8.2 Overall Gantry Design

Student Guide SIPLACE D-Series (FSE) 135

of Mechanical Layout

With the help of a tooth Mechanical Layout rotary movement of the X-axis motor is directly converted

into a lengthwise movement of the placement head, in the X-direction.

The linear guide rails under the X-axis guide the head assembly plate and the placement head along the

X-axis.

The X-motor is cooled by a fan at the Y-axis pickup position and the motor temperature is also monitored

by a sensor.

8.1.3

8.1.3 Y-Axis Mechanical Structure

Y-Axis Mechanical Structure

Mechanical axis structure – part 2 - view from below (D4/D4i shown as example)

Legend

of Mechanical Layout

A line Mechanical Layout the entire gantry (X-axis, head assembly plate and placement head) in the Y-

axis direction. This linear motor consists of a primary and secondary part. The secondary part consists

of permanent magnets, which are fastened lengthwise (Y direction) to the machine frame.

The primary part consists of inductors (motor windings), which are directly fastened to the gantry, in a

casing.

The drive is cooled by the compressed air supply to the placement head and also has integrated tem-

perature sensors, which are monitored by the axis controller.

8.2

8.2 Overall Gantry Design

Overall Gantry Design

The gantries on the 4 machine types in the D/Di-series have the following common/different features:

1 Y brake 5 2x linear guide rails, each with a linear

bearing

2 X brake 6 X-axis incremental scale

3 Digital PCB camera (shape varies) 7 Elastomeric spring 25x10.5x50

4 X-axis incremental encoder 8 Y-axis incremental encoder

8 Gantry

8.2 Overall Gantry Design 8.1.3 Y-Axis Mechanical Structure

136 Student Guide SIPLACE D-Series (FSE)

Overall Gantry Design

Assembly D4/D4i D3 D2/D2i D1/D1i D1/D1i single

head

Gantry Cast gantry

CFK06 gantry

Extended cast gantry

X-drive Motor with belt

drive

Linear motor Motor with belt drive

X-motor cooling

(filter mats!!)

100/120 mm

fan in Y-axis

pickup posi-

tion

Exhaust for

vacuum distri-

bution

120 mm fan in

Y-axis pickup

position, C&P

head to MA

center

120 mm fan in

Y-axis pickup

position, C&P

head on the

right in each

case

120 mm fan in

Y-axis pickup

position

C&P head

(right) P&P

head (left)

Temperature

sensor integrat-

ed into motor

Cable to axis controller

X belt tension 53 Hz +1 /-3 --- 44 Hz +/-1

Incremental en-

coder

With optical 1-field technology

Incremental

scale

Glued on met-

al strips and

screwed to

gantry

Glued on an

aluminum strip

with edge

guide. This is

glued onto CFK

material

Glued on gantry

X-axis travel

ranges (to bump-

er)

373.5 mm ~480 mm 473.5 mm

X-axis incremen-

tal scale length

440 510 500

Arrangement of

bearing slider

1 slider on

each of the 2

linear guides,

side by side

2 sliders on

each of the 2

linear guides,

one above the

other

1 slider on each of the 2 linear guides, side by side

Slider for X linear

guidance

Do NOT grease

Placement

head(s)

4 C&P12 C&P12/6 and/

or 1 TWIN

2 C&P12 or

C&P6 or mixed

CP12 or 6 and 1

P&P module

C&P 12 or 6 or

P&P module

Head mount with Gantry head

distributor

board carrier

X motor with

board carrier

Gantry head distributor board carrier

PCB camera

SST34

Below gantry

Y drive Linear motor

Y-motor cooling Compressed

air supply to

head

Fan in pneu-

matic rack

Compressed air supply to head

Temperature

sensor integrat-

ed into motor

Wiring to axis controller

8 Gantry

8.1.3 Y-Axis Mechanical Structure 8.2 Overall Gantry Design

Student Guide SIPLACE D-Series (FSE) 137

Incremental en-

coder

With optical 1-field technology

Incremental

scale

Glued to MA

frame. Gauge

set HS

Glued to MA

frame. Gauge

set HF

Glued to MA frame. Gauge set NEW

Y travel range

(per gantry and

up to stopper or

2nd gantry)

~1507.5 mm ~1234.0 mm

(gantry 2)

~1428.5 mm

(gantry 1)

~1205 mm ~1591.5 mm

Y incremental

scale length per

1600 mm 1960 mm (as in

X machine)

1960 mm (as in X machine)

Arrangement of

bearing slider

2 sliders on each of the 2 linear guides, one above the other

Y linear guid-

ance slider

Grease

Temperature

sensors for com-

pensation

1 at each gan-

try

2 at each gantry 1 at each gantry

X-axis distribu-

tor board

Gantry head

distributor,

version 3

Head interface

and head

adapter

Gantry head distributor, version 3

Compressed air

distributor block

Yes, with di-

rect tubes to

head

Yes, X version Yes, with tubes

to T-piece and

then to head

Yes, with tubes

to T-piece and

then to heads

Yes, with tubes

to T-piece, 1

output blocked

Y-axis distribu-

tor board

Gantry distrib-

utor

Gantry inter-

face

Gantry distributor

End position

proximity switch

None

Light barrier for

anti-crash moni-

toring

Not any more Never needed

Anti-Crash

Board

Not any more

NOTICE

eSW axis controller

All zero pulses for the gantry axes are checked to see whether 50,000 count pulses occur or

whether a whole number multiple of this occurs!!

An overshoot check for gantry axis positioning is no longer required. The continual calculation

of the axis positioning, based on the axis track signals, gives optimal positioning, even in the

case of mechanical defects.

Travel range: axis controller determines hardware position at stopper; 2 mm before; travel

range – software position – 0.5 (X) 1.5 mm (Y) before that - limited.

Assembly D4/D4i D3 D2/D2i D1/D1i D1/D1i single

head