Page 210 - Praxair Productivity Catalog

WELDING AUTOMATION

Custom Fixtures and Tooling

A Variety of Fixtures

Praxair can provide many types of fi xtures for your automation
needs. Depending on the complexity of the part and the level
of interface you require, a tool can be designed to seamlessly
integrate into your welding cell. Tooling fi xtures usually are
made of wear-resistant materials to help ensure long life and
part accuracy and can come in a variety of forms including:
 Simple hand clamping fi xtures
 Progressive tooling
 Cut through base plates
 Holding and tacking fi xtures
 Smart tooling with HMI interfaces

Simple Hand Clamping Fixtures

It is common to manually load and unload parts while needing clamps to hold all the parts in place. The benefi t of this
simplicity is that hand clamps are relatively inexpensive and can be easily replaced after wear.

Progressive Tooling

Progressive tooling is used when a part’s components cannot all
be welded at once due to either a need for repositioning (the robot
cell may not have the ability to rotate parts) or sub components
needing to be welded separately for a fi nal part to be completely.
When designed, there may be several part fi xture cavities on the
load side of the robot. As a part gets welded in the fi rst fi xture
cavity and is moved manually to the next fi xture cavity and so on,
until a completed part is completed in the fi nal fi xture cavity. Each
rotation of the robot cell table would produce a fi nished part in the
fi nal fi xture cavity. This confi guration would be mirrored on both
sides of the robot.

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