D-serie level 1 EN - 第44页
Overview Assemblies Changeover Table Components S tuden t Guide Advanced Level 1 SIPLACE D-Series Overview EN 05/2007 3-20 3.4.6.2 Overview of S-Feeder Description: 9 differ ent feeders are enoug h to process tape s with…
Overview
Changeover Table Components Assemblies
Student Guide Advanced Level 1 SIPLACE D-Series
EN 05/2007 Overview
3-19
3.4.6 Changeover Table Components
3.4.6.1 Setting the Height of the Changeover Table
The changeover table can be manually set to the following PCB transport heights
830 mm PCB transport height
900 mm PCB transport height
930 mm PCB transport height
950 mm PCB transport height
3-13: Button for docking and undocking changeover tables (D4)
Legend
1. Changeover table location 1
2. Changeover table location 2
3. Changeover table location 3
4. Changeover table location 4
5. Transport direction
6. The button for docking and undocking the
changeover tables is located under the feeder
cover flap of each changeover table
7. Switch to lower the table after undocking/
docking
3-14: Changeover table (D4 shown as example)
Legend
1. Feeder table plate
2. Communication unit
3. Tape container
4. Waste container for tape cuttings
Overview
Assemblies Changeover Table Components
Student Guide Advanced Level 1 SIPLACE D-Series
Overview EN 05/2007
3-20
3.4.6.2 Overview of S-Feeder
Description: 9 different feeders are enough to process tapes with widths from 8 to 88 mm. The tape reels
on the feeder are taken up by the component trolley tape container. The cutter then cuts up the empty
tape automatically. SIPLACE feeders are known for their short cycle times and highly accurate pickup
positions.
These feeders can also be used in other SIPLACE placement machines.
In addition to the tape feeders, bulkcase feeders, linear feeders, surftape feeders, Dipflux modules,
component reject conveyors and manual trays can also be used. If a location is not occupied, a so-called
dummy feeder is inserted for safety purposes.
3-15: Overview of standard feeders
Overview
Gantry Assemblies
Student Guide Advanced Level 1 SIPLACE D-Series
EN 05/2007 Overview
3-21
3.4.7 Gantry
3.4.7.1 General
Precise distance measuring systems determine the position of the X and Y axes. This involves the
optoelectronic detection of marker lines on the incremental scales and the transmission of the track
signals to the axis control point in the control unit.
Direct drive techniques are then used to position the placement heads in the Y direction (in the X
direction also for D3 machines). This prevents the typical frictional loss which occurs when complex drive
systems are used. This solution also avoids the wear and tear which can significantly impair the accuracy
of positioning systems over time.
X-axis drive
With the help of a toothed belt, the rotary movement of the X-axis motor is directly converted into a
lengthwise movement of the placement head, in the X-direction.
Y-axis drive
A linear motor moves the placement head lengthwise, in the Y direction.
3-16: Machine gantries
Legend
1. Gantry 1
2. Gantry 2
3. Gantry 3
4. Gantry 4
The D4 placement machine is equipped with four
gantries. These are used to accurately and
independently position the four C&P heads in the
X and Y directions.
Due to their construction, the gantries are resistant
to buckling. The precise mechanical guidance of
the axes is achieved with the aid of ball bearing
units.