The document describes improvements made to a welding fixture for a shaft assembly process. Previously, the fixture used a limit switch to check that locating pins were inserted correctly into the shaft before allowing welding. This sometimes led to incorrect welding angles. To address this, the fixture was improved to automate angle checking using a limit switch on a lever, which only allows welding when both pins are inserted at the right angle. This countermeasure ensured welding only occurs at the proper angle specified in drawings.

1. Kaizen in c.a.shaft 8530dd assly welding process
BEFORE COUNERMAESURE
WELDING FIXURE
LIMIT SWITCH PROVIDED AT WELDING
FIXTURE WHICH GIVE SIGNAL TO WELDING
M/C FOR RUN IF LOCATING PIN INSERET ITO
SHAFT AND ANGLE OK
WELDING TORCH RUN IF ANGLE OK DUE TO
LIMIT SWITCH
COUNTERMEASURE:-we improve our welding tacking
fixture of C.A.Shaft 8530DD and try to small type of
automation in that fixture as shown in picture. In simple
words we put a limit switch on that leaver while both pin
insert into the counter sunk hole of shaft then limit switch
on and that connected to our welding set.At on condition
welding set run and operator done welding leaver/shaft
at right angle as per drawing otherwise welding not done
at off position and we eliminate the problem of angle
disturb in this item.
AFTER
COUNERMAESURE
WELDING FIXURE
LIMIT SWITCH