The document provides tips for designing weld fixtures, including: - Using hex bolts and jam nuts to adjust clamp pressure on production parts. - Attaching lanyards to removable fixture parts to prevent loss. - Incorporating RAPid Blocks and Shims to position and hold locating pins, rest pads, and production parts during welding and testing. - Designing pivot points, adjustable fingers, and clearance around corners for different clamping situations. - Adding adjustability using shoulder screws, set screws, and shims to precisely position parts as needed.

1. Clamp Arm
Creativity

2. Weld Fixture
Design 101

3. Clamp
pressure
adjustment

4. Use a hex
head bolt…

5. A jam nut

6. Plate with
threaded hole

7. Plate welded to
clamp arm

8. During Test
Weld --
Rotate bolt
to adjust
pressure on
production
part

9. Lanyard
removable
parts of
fixture, so
they stay with
the fixture.

10. You can use
one clamp
for holding
two parts

11. This way uses
two different
threaded
fasteners…

12. This one
uses a
socket
head cap
screw right
over a jig
foot for
clamping

13. Sometimes
a pivot
point is
designed in
here

14. Use RAPid
Block™,
RB00
(Altered) to
hold
locating
pins.

15. RAPid
Block™,
RB00

16. RAPid
Shims™

17. Welding
causes heat
that deforms
production
parts.
Do not use
compression
spring devises
unless you
have to.

18. Two
production
parts …
held with one
clamp arm
Using REID
compressing
spring
plunger
assemblies

19. Sometimes to clear the weld gun…

20. You have to clamp around a corner.

21. Clamp Finger

22. Weld Plate Perpendicular to Clamp Arm

23. Shoulder screw allows for pivot

24. Set screw & nut for pressure adjustment

25. Welded plate extends to prevent finger
flop when clamp opens

26. Finger presses production part onto rest pad.

27. More Pointers….
Use RAPid Shims™ under your rest pads

28. …to adjust location of production part
during testing of the fixture.

29. These RAPid Plates™ are also shimmed.

30. RAPid Blocks™
RB06…

31. When shop
assembles, dowel
RB06’s in place,
but do not tighten
down the
fasteners.

32. When plate is in
place…

33. Tighten these
fasteners first….

34. Tighten these
fasteners last.

35. When precision is
needed…

36. Design in
adjustability…
RAPid Block ™
RB03

37. Design in
adjustability…
RAPid Shims ™

38. Discover more design tips at…
http://www.weldfixturedesign101.com