FIGURE 3
NCAD first assembled the pylon fixturing and
weldment in Solid Works.
FIGURE 2
The pylon frame substructure is 14 ft. tall, made of
2- by 2-in. 6063 aluminum square tubing.
NCAD acquired two 40- by 40-in. tables
that serve as platforms on which to mount the
angles, blocks, and other fixturing accessories
that are included in the standard 125-piece
kit. It also purchased two extra-large,
adjustable angles. Bluco assisted with the
first fixturing design at no additional cost.
HOW DO YOU REDUCE DOWN-TIME
AND INCREASE UP-TIME
SIEGMUND
MODULAR CLAMPING
& WELDING FIXTURES
The tables are made of 1-in.-thick high-tensile-strength steel, ribbed to ensure
stability. Tables have 1.1-in.-diameter
mounting holes on a 4-in. grid across the
face and four sides of the table with an
accuracy of ±0.001 in. hole to hole and
±0.002 in. overall. Fixture elements match
the holes and grid pattern on the table.
Structural pieces have 1.1-in. slots to position fixtures between holes. Positioning and
clamping bolts attach fixtures and workpiece positioners.
Clamping bolts insert through the fixturing elements and the worktable. An O-ring
in the body of the bolt helps prevent rotation
during tightening. Turning the knurled bolt
head extends a series of five locking balls into
a chamfered recess at the bottom of the
mounting holes to center the bolt shank and
clamp the components together. With each
element positioned, a hex wrench tightens
the bolts.
The stability, hardness (nitrided to
Rockwell 55C), and flatness (0.004 in.) of
the table make it efficient to use in conjunction with metrology instruments, such
as a height gauge. In addition, the table has
a scribed millimeter scale.
“The system will make reorders simple.
Weldments can be fixtured at any time by
calling up the 3-D model for exact duplication. Again, no wasted time and motion,”
Porter remarked. ■
NCAD Products Inc., P.O. Box 622188,
Oviedo, FL 32762, 407-971-2997,
www.ncad.com
Bluco Corp., 3500 Thayer Court., Aurora, IL
60504, 800-535-0135, www.bluco.com
The Siegmund modular fixturing
system features accurate five-sided tables made of high tensile
strength steel. Angles, spacer
blocks, clamps, positioning and
clamping bolts and universal
stops can be assembled into
a ready to use welding fixture.
Ideal for prototypes, spares and
other short run jobs.
distributed by:
WANT MORE INFORMATION?
Visit www.thefabricator.com; enter
the article number (digits only) in
the home page search box:
“Fixturing on display”—1785
“Moving to modular welding fixturing”
—1534
sales@jkarind.com ❚ www.jkarind.com
Enter reader service code 1137237 at www.ffid.net
18 PRACTICAL WELDING TODAY
May/June 2009
