X3_X4_Series machine - 第94页

3 Technical data User manual SIPLACE X-Series 3.1 Description of the m achine Software Version SR.601.xx 11/2005 US E dition 94 The placem ent mac hines are based on a torsio nally-ri gid and v ibratio n-damped cast ste …

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User manual SIPLACE X-Series 3 Technical data
Software Version SR.601.xx 11/2005 US Edition 3.1 Description of the machine
93
3 Technical data
3.1 Description of the machine
The SMD placement systems from the
SIPLACE X-series
are characterized by their high config-
uration flexibility, excellent placement rate and maximum precision. The machines cover the SMD
spectrum of components from 0201 to 125 x 100 mm² with a high placement rate.
Two placement methods are used:
–the
Collect&Place
method with Collect & Place heads for components from size 0201 to fine-
pitch
–the
Pick&Place
method with the SIPLACE TwinHead for fine-pitch and OSC components
3
Fig. 3.1 - 1 X4 placement machine, overview
3 Technical data User manual SIPLACE X-Series
3.1 Description of the machine Software Version SR.601.xx 11/2005 US Edition
94
The placement machines are based on a torsionally-rigid and vibration-damped cast steel ma-
chine frame. This guarantees an excellent production quality and less environmental pollution for
employees since the noise of shaking and vibration are reduced to a minimum.
The X2 placement machine has two gantries. The X3 placement machine has three gantries,
while the X4 machine has four gantries. There is a placement head on each gantry. These can be
quickly and accurately positioned by linear motors, moving independently of one another in the X
and Y directions.
According to the head modularity principle developed by Siemens, the placement heads can be
quickly and easily changed. An overview of the placement head configuration can be found in sec-
tion 3.7
, page 117.
There are four locations for feeding components. Up to four component trolleys or alternatively
one or two matrix tray changers can be docked into X2 machines in place of the component trolley.
On X3 machines, a matrix tray changer may be used in place of a component trolley.
The placement heads fetch the components from the fixed feeder modules on the component trol-
ley or from the trays in the matrix tray changer, and place the PCBs, which are also stationary.
The placement machines from the X-series have two placement areas:
– on the single conveyor, one or two PCBs can be placed concurrently.
– on the dual conveyor, up to four PCBs can be placed concurrently.
The principle of the "stationary component supply" and "stationary PCB", which has proved most
suitable for all SIPLACE placement machines, has a number of significant advantages:
– There are no downtimes for topping up components or splicing tapes.
– The vibration-free component feeder means that even the smallest components (e.g. 0201)
are picked up reliably.
– The PCB, which does not move during the placement process, prevents the components slip-
ping.
– The combination of placement heads with nozzle changers always guarantees an optimum
nozzle configuration for every placement process, thus minimizing traversing paths and opti-
mizing the placement sequence.
High flexibility, cost-effectiveness and set-up reliability combine to ensure that the SIPLACE X-
series provides high productivity. Minimum down times increase utilization and thus help to in-
crease productivity.
User manual SIPLACE X-Series 3 Technical data
Software Version SR.601.xx 11/2005 US Edition 3.1 Description of the machine
95
3
Fig. 3.1 - 2 Placement principle using the Collect&Place method
The following options are available to extend the machine's functionality:
– Additional component trolleys increase machine utilization since set-up times can be reduced
by carrying out preliminary set-up off the machine.
– The dual conveyor also increases machine utilization by eliminating non-productive PCB
transport times.
– Automatic nozzle changers speed up and optimize the nozzle configuration process.
– PCB barcode scanners allow the production set-up to be changed over when triggered by a
new product.
– Component barcode scanners optimize the set-up and refill checks.
– Large and sensitive components can be supplied in trays in add-on matrix tray changers.
– The productivity lift implements the concept of parallel placement, and thus improves the ratio
between productive and non-productive times.