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Here is a piece of history, a custom built machine to check the profile of 155mm shells. Came out of a defunct Army Ammunition plant, about 40 years ago now. No mfgs name on it, just a big x and z axis with a rotary A axis. Apparently the way it works, the shell was placed on the rotary base, the cycle started and a stylus wheel checked the runout and dimension at various points an inch apart.
The stylus tip can be seen at the bottom of the vertical arm to the left of the column. It's just a wheel, attached to a slide with a mechanical limit switch attached.
There are two, what looks like calibration standards on the machine.Each is a series of pins machined and set to an exact protrusion that describes the profile of the shell.
I don't have any pictures of the control cabinet, it was scrapped out awhile back. But it consisted of a couple power supplies, an 8 channel paper chart recorder and a bank of toggle switches.I'm guessing this would be done by a CMM of some sort these days.
The stylus tip can be seen at the bottom of the vertical arm to the left of the column. It's just a wheel, attached to a slide with a mechanical limit switch attached.
There are two, what looks like calibration standards on the machine.Each is a series of pins machined and set to an exact protrusion that describes the profile of the shell.
I don't have any pictures of the control cabinet, it was scrapped out awhile back. But it consisted of a couple power supplies, an 8 channel paper chart recorder and a bank of toggle switches.I'm guessing this would be done by a CMM of some sort these days.
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