Work holding device

[RobWilson]

Hi Lads

being in the mood to weld bits of plate together , i thought i would make a start on building a fixture to hold work perpendicular to the machine table ,, be it mill, surface grinder , drill or whatever . Something that looks like this .

It its a welded steel fabrication ,, 1" plate ,, each leg of the 90 is 3" and it will be 7" tall ,,,,,,,,, why these sizes ? well so it can be machined on the shaper . Always good when designing things to take into consideration your machine travel , tooling and work holding :med:

Here is the ruff part on the shaper table as you can see we need away to fix the part to the table .




A couple of off cuts of steel welded together will do the job



The ruff part is then tack welded to the fixture ,, welded were it wont matter ,


Now the job can be bolted to the shaper table



The faces marked with orange show were i can machine in one go without having to disturb the job ,this means all faces will be
parallel and perpendicular to each other .


Also at this fixing the slot and chamfers were machined .



Next up the part was unbolted and turned over and fixed to the table with one of the machined faces down , so that the face of the fixture could be skimmed flat.



This was done so that the base could be machined , The part was then re fitted to the table .


And clocked in on both faces so the base when machined will be square to them ,,, no point having it cock eyed .





Forgot to take photo of machine up base :doh: ,,,,see two photos down :palm:,,,,,, the fixture was then de-welded from the job with an angle grinder .