Automated Systems in Fastener Technology

viraginityfumblingΛογισμικό & κατασκευή λογ/κού

2 Νοε 2013 (πριν από 4 χρόνια και 1 μήνα)

63 εμφανίσεις

An Aerospace
Manufacturing
Perspective

Automated Systems in Fastener
Technology

1

Fasteners in Aviation


Fasteners Installation in the Aerospace
Industry


Fully/Semi
-
Automated Fastening Systems


Flex Track


Horizontal Rivet Injector


Snake
-
arm Robots


One piece Barrel Fastening


Automated Riveting Cell


2

Flex Track for Aircraft Manufacturing
Processes


Traditionally, aircraft fastener drilling has
been accomplished by using fixed drill
templates.


The Boeing Company has recently
developed a portable, more flexible
automated drilling solutions, called Flex
Track

3

Flex Track for Aircraft Manufacturing
Processes


Flex Track components:


Rails


Carriage


Add
-
ons / Modular Tool

4

Flex Track for Aircraft Manufacturing
Processes


Flex Track is a
modular two
-
axis
numerically
-
controlled
positioning
system that
solves a 5
-
axis
application.


5

Flex Track for Aircraft Manufacturing
Processes


Flex Track Video


http://minift.com/movie.html



6

Horizontal Rivet Injector


The Low Voltage
Electromagnet
Riveter (LVER) is a 5
-
axis machines
designed to
accurately fasten a
vertically oriented
wing skin and
stringer. (Figure 1)

7

Horizontal Rivet Injector


Major
components of
the rivet injector

8

Horizontal Rivet Injector


The skin side process
tools and clamping foot
(See Figure 2)

9

Snake
-
arm Robots


Snake
-
arm robots for aircraft assembly


The purpose of a snake
-
arm is to introduce
tools or sensors into a confined space.


The diameter of the end effectors’ envelope
must be equal to or less than the diameter
of the snake
-
arm.


The length of the end effectors must be
minimized, ideally to the diameter of the
snake
-
arm or at least to less than 1.5x the
diameter.


Snake
-
arm robot mounted on Kuka
industrial robot (See Figure)

10

Snake
-
arm Robots


Three interchangeable end effectors were designed by
OC
Robotics for the
demonstrator:


An inspection tool
(pictured above) containing several cameras with various functions


A swage tool
(pictured right) to swage a rivet and direct the removed section into a collection
area


A sealant tool
(pictured right) incorporating a standard sized sealant cartridge and nozzle,
with cameras to allow automatic orientation of the tool piece to the seam.

11

Snake
-
arm Robots


Snake
-
arm
Robot on an
assembly line,
reaching into
the wing box.

12

One piece Barrel Fastening


The one
-
piece
-
barrel (OPB) fuselage design
offered a new challenge to fastening
equipment assembly cell.

13

One piece Barrel Fastening


To accurately locate
fasteners relative to the
frames was to base
fastener positions relative
to tack fastener positions
for automatic fastening.



The tooling that supports
the barrel would rotate the
barrel through 360
degrees of rotation.

14

Automated Riveting Cell for A320 Wing
Panels


The machine is based on existing
Electroimpact technology but
incorporates numerous design
modifications to process tools,
fastener feed hardware, machine
structure and the control system.

15

Automated Riveting Cell for A320 Wing
Panels


Improvements on the machine:


Rivet Feed to EMR


Lockbolt cycle time


Fastener Buffer


Simplified Collar Feed System


Machine Structure Improvements


Control System Improvements

16

Aerospace Fasteners Selection


Many factors affect the selection of a specific type of fasteners for a
specific area or application in aerospace.


Some important consideration are:


Installation Cost


Rate


Weight


Shear, allowable


Skin thickness


Aerodynamic flushness


Noise


Corrosion

17