Browse Prior Art Database

Flexible Multi-Form System

IP.com Disclosure Number: IPCOM000099151D
Original Publication Date: 1990-Jan-01
Included in the Prior Art Database: 2005-Mar-14
Document File: 4 page(s) / 162K

Publishing Venue

IBM

Related People

Aronoff, RD: AUTHOR [+6]

Abstract

The feeding system described in this article is a component pick-and-place system which delivers SIP, or IBM Module components to a robot from tubes. The interchange between form is accomplished by changing the component and the tube holders. The tube holders are on generic gib assemblies which allow quick change component types and flexible off-line setup. The system is able to automatically calibrate itself the specific setup employed. This feature allows center distance between tube holders in the gib further contributing to the system flexibility.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 41% of the total text.

Flexible Multi-Form System

       The feeding system described in this article is a
component pick-and-place system which delivers SIP, or IBM Module
components to a robot from tubes.  The interchange between form is
accomplished by changing the component and the tube holders.  The
tube holders are on generic gib assemblies which allow quick change
component types and flexible off-line setup.  The system is able to
automatically calibrate itself the specific setup employed.  This
feature allows center distance between tube holders in the gib
further contributing to the system flexibility.

      The system may be broken into several subassemblies:
        Positioning Mechanism
        Picker Assembly
        Tube Holders/Component Escapements
        Gib Assemblies
        Registration Station

      POSITIONING SYSTEM: Positioning Mechanism is composed of a
single-axis stage which is fixed to a mounting plate and bearings
which facilitate sliding the system aside to operator access and an
adapter plate which carries electronics, and a quick- change tool
adapter.

      The stage is a commercially available device which is by a
linear servo motor.  The stage controller with a Personal Computer
(AT) which calculates length of moves and handles all the di/do
functions for system.

      The AT is able to actuate various picker assemblies tools)
through the pneumatics, electronics, and adapter provided on the
adapter plate.  This allows the to employ picker assemblies designed
for the forms of interest without wiring or plumbing  The tool
adapter makes interchanges of these tools rapid operation and simple
enough that the machine will be able to convert from form to form.  A
- LED through-beam sensor is also on the adapter plate.  This sensor
is the system calibration sensor.

      PICKER ASSEMBLY: picker assembly is essentially the end-of-arm
tool the feeding system.  It incorporates a pneumatic gripper vacuum
chuck) and a roller cam follower mounted on a actuator as well as the
interface housing for the adapter.  These devices allow the system to
reach into tube-holder station, actuate the tube-holder escapement
and pick the part to be delivered to the robot.  Due the varying
setup conditions of this system caused by from form to form, the
system was given the ability automatically calibrate itself.

      TUBE HOLDERS/COMPONENT ESCAPEMENT: tube-holder/component
escapement assemblies are for specific components.  For example, a
unique is required for two, four, six, eight, and ten SIP components.
 Various assemblies are required for sizes of modules and DIP
components.  These all incorporate one generic interface to the gib
in which they are fixtured to allow picker

      Each escapement has a pin accurately pressed into it in
standard location.  These pins protrude from the and block the
calibration sensor on the feeder's adapter plate when the feeder is
in...