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Overview
The CAT90-SA is a semiautomatic pick and place system featuring computer guidance and the latest high resolution vision technology. The system is designed for placement of
various SMT components such as capacitors, resistors, SOIC’s, fine-pitch QFP’s, and many other SMD’s. High productivity is achieved by eliminating the need to refer to a PCB
layout / schematic diagram as with manual pick and place systems. Software guides the operator to pick up an appropriate component from a specific bin (accommodates loose
parts) or feeder and then displays the corresponding placement location on the PCB. The operator simply moves the placement arm along the X and Y axis’ (while as necessary,
referring to the computer monitor or the camera view monitor) as being prompted by the software until the board is assembled. To place fine pitch components, the operator uses
the Top Viewing feature that allows to see all 4 sides of a component simultaneously. With the placement arm automatically locked in place, X and Y micrometers, along with the
Theta rotation are used to provide necessary fine adjustments for component positioning. The software also allows an unlimited number of feeders and carousels that may be
programmed for each assembly. Both the feeders and the carousel are interchangeable in mid assembly within a matter of seconds.
A movable armrest and a handle (integrated into the placement head) are provided for operator’s convenience. The handle also serves as the Theta adjustment , allowing
rotation of the component. When the placement arm reaches the appropriate X / Y position, a computer controlled plunger automatically lowers it to a preset height. A braking
action (adjustable) on the movement of the pickup head occurs automatically in order to avoid passing the component placement position. An optional dispenser mounts on the
pickup head and is used for application of solder paste or adhesives. Activated by a foot pedal, it releases only precise amount of material every time (adjustable with the timer
controls).
In comparison to manual pick and place systems, the CAT90-SA delivers higher productivity (up to 1,000 CPH), eliminates placement errors, and greatly reduces operator fatigue. On
the flip side, fully automatic pick and place systems are difficult to maintain, require expensive feeders, and furthermore are unable to place loose parts. The true cost of
owning an automatic pick and place system far exceeds any cost advantages for prototype and low volume assembly requirements. As such, this makes the CAT90-SA a very attractive
and cost effective solution for small volume assembly requiring, precise error proof placements.
Key Features
- Computer Guided Assembly with Error-Free pickup and placement
- High Magnification Vision System with a dedicated 15" LCD monitor
- Easily programmable via Tech Mode or CAD data transfer
- Automatic Z Placement Release
- Automatic Brake (adjustable) at the placement position
- Motorized Carousel (in-process interchangeable) with 45 antistatic bins
- User Friendly Software with easy to use Teach and Repeat functions
- X, Y micrometers and Theta rotation adjustments
- Unlimited Board Profile storage
- Unlimited number of Feeders and Carousels per assembly
- Switchable between Manual and Semi-Automatic modes
- Vacuum Probe for handling of delicate components
- Armrest and Loose Parts Tray
- Designed and Manufactured in the USA
Operation
The system is designed to operate for component pick or place in a uniquely identified target area. This fail-safe condition ensures that a component cannot be picked up from the wrong
location, nor can a component be placed in the wrong location. The computer guides the operator from where to pick up a component and where to place it on the PCB . The placement arm is guided by the operator.
The PICK permit signal is computer generated when the vacuum head is positioned in the programmed pick area, and this causes the following events to occur:
One monitor displays the graphic worktop display (software screen) while the video monitor shows the live camera view.
The vacuum is on, permitting component pickup. On leaving the pickup location, the monitor automatically displays the placement location with the PLACE location highlighted.
The PLACE permit signal is generated when the vacuum head is moved into coincidence with the place target area, and this causes the following events:
The anti-lock arm break is automatically activated, applying friction.
In addition to the brake, the operator can actuate the arm lock.
A lowering mechanism automatically drives the component down to be close to the board, eliminating operator misalignment.
The video display shows a live camera view allowing for placement.
The component is permitted to be released at placement.
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