The JUKI RS-2R placement machine is a high-speed, intelligent,
modular placement machine. Its operating principle integrates
precision mechanics, visual recognition, and automated control
technologies. The core process is as follows:
Feeding and Removal
A feeder (such as the RF08AS) pushes components from tape or reel
to the removal position, where the placement head uses a vacuum
nozzle to pick up the components.
This machine features a dual-side feeding design and can
accommodate up to 112 feeders, supporting high-mix, low-volume
production.
Vision Positioning and Alignment
Equipped with a laser recognition system ("Jiangtou" technology), a
variable-height sensor (adjustable in six positions) captures
component shape and position in real time, supporting components
ranging from micro 03015 to large 74mm components.
The system utilizes a high-resolution camera and image processing
algorithms to dynamically correct component offset angles and
coordinate errors, achieving an accuracy of ±15μm.
Multi-Axis Simultaneous Placement
The X/Y/Z axes are driven by servo motors and coupled with a linear
scale (0.1μm resolution) for micron-level positioning. The
placement head adjusts its trajectory during motion through
closed-loop feedback, achieving a placement speed of up to 50,000
cph (placements per hour).
Coplanarity Inspection and Quality Control
Integrated coplanarity detection sensors ensure the flatness of the
contact surface between component pins and pads, preventing cold
solder joints or misalignment. Dynamic pressure sensors adjust
placement force to protect fragile components.
Cyclic Operation and Automation
The control system coordinates the timing of each module, enabling
continuous placement until the PCB is complete. This process
integrates mechanical transmission precision, optical compensation,
and motion optimization algorithms to meet the needs of
high-density placement.
Technical Highlights:
Laser recognition technology is unaffected by component gloss or
shape, ensuring high stability. The modular design supports rapid
changeovers and adapts to diverse production needs.
