High speed JUKI picks and place machine RX-7R, placement
speed can up to 75,000 CPH, It can support 50 & times 50~510mm & times
450mm PCB boars size. High speed, high accuracy, JUKI picks and place machine
is the one of the best around the word.
Pick and place machine, also known as mounting machine, Surface Mount System
(Surface Mount System), in the production line, it is placed in the dispensing
machine or screen printing machine, the surface mount components by moving the
placement head Accurately place a device on the PCB pad, Divided into manual
and fully automatic. The automatic placement machine is used to realize
high-speed, high-precision automatic placement of components, and is the most
critical and complex equipment in the entire SMT production. The placement
machine is the main equipment in the SMT production line. The JUKI Pick and
Place Machine have evolved from an early low-speed mechanical placement machine
to a high-speed optical centering placement machine, and have evolved into a
modular and flexible connection.
Working principle of JUKI picks and place machine
The JUKI Pick and Place Machine is actually a
sophisticated industrial robot, a combination of machine-electric-optical and
computer control technology. It achieves the fast and accurate placement of
SMC/SMD components to the pad locations specified by the PCB without damaging
components and printed circuit boards by means of
suction-displacement-positioning-placement. There are three ways of mechanical
alignment, laser alignment and visual alignment. The placement machine consists
of a frame, an xy motion mechanism (ball screw, linear guide, drive motor), a
placement head, a component feeder, a PCB carrier mechanism, a device centering
detection device, and a computer control system. The motion is mainly realized
by the xy motion mechanism, which transmits power through the ball screw and
realizes the directional motion by the rolling linear guide motion pair. Such a
transmission form not only has its own small motion resistance, is compact in
structure, but also has high motion precision. The placement accuracy of each
component is guaranteed.
The JUKI Pick and Place Machine perform Mark marking on
important components such as the mounting spindle, the moving/static lens, the
nozzle holder, and the feeder. Machine vision can automatically find the
coordinates of these Mark center systems, establish the conversion relationship
between the system coordinate system of the placement machine and the
coordinate system of the PCB and the mounted components, and calculate the
precise coordinate of the movement of the placement machine; the placement head
is based on the imported The package type, component number and other
parameters of the mounting component are taken to the corresponding position to
grab the nozzle and the suction component; the static lens detects, identifies
and centers the suction component according to the visual processing procedure;
after the alignment is completed, the placement head sticks the component
Loaded into a predetermined location on the PCB. The actions of the series of
component identification, alignment, detection and placement are all
automatically completed by the instruction control system after the industrial
computer acquires relevant data according to the corresponding instructions.
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