Oh Blimey I bought a CNC Lathe !!!!

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awemawson:
I've not doubt that you'd carry a spare John, if you could find it in your den of iniquity :lol:

A bit of web browsing leads me to suspect that the Sauter design works by indexing round to the 'hole' for the solenoid locking pin, before a tool position, firing the pin into the hole, then reversing the drive motor which allows two plates with wavy surfaces and a set of rollers between them to force the Wirth Coupling together by cam action. Release is by popping the pin in, and driving the motor. This is conjecture based on a problem someone had on the Practical Machinist site:

http://www.practicalmachinist.com/vb/cnc-machining/sauter-turret-fagor-8055-dont-seem-like-each-other-266023/

John Stevenson:

--- Quote from: awemawson on July 02, 2013, 04:37:50 PM ---I've not doubt that you'd carry a spare John, if you could find it in your den of iniquity :lol:

--- End quote ---

After recently selling or scrapping 7 machines I have a semblance of clean floor, mind you the fact that I have rushed out after suffering from clean floor syndrome and bought three new machines has helped slightly.

I do have to be careful and keep in close contact with Tim Leech over disposals and acquisitions or the east / west fulcrum of the UK is going to suffer.

As it is all aircraft flying into East Midlands have been advised to re-calibrate their compass's

awemawson:
Overnight, the nice man from Sauter has emailed me the complete 24 page manual for the Tool Turret disclosing all it's little locking secrets.

This has revealed a screw that you can remove to let a hex key be inserted into the motor shaft, to allow manual locking - basically you turn until the locking pin drops in, then holding the pin in, reverse direction until the cam rollers lock the Wirth Coupling, then the pin can be released. This explains why in the locked mode the locking pin isn't in the lock hole! In fact they call in a pre- indexing pin so all is forgiven.

awemawson:
:ddb: :ddb: :ddb: The Tool Turret Lives :ddb: :ddb: :ddb:

Now the Tool Turret rotates to the selected tool on command from the Operators Panel. The rotation from station to station is by an in built three phase motor, with the usual arrangement of two contactors, one for forwards and one for reverse. However this system has a third contactor feeding the first two, and should be pulled in by the logic line 'motors on' However this is routed through a Platinum Resistance Temperature sensing relay box, with its Pt sensor embedded in the tool post somewhere. Lights on the front of the box claimed all was well - but it lied! The supposedly closed contact was open, hence no power to the tool turret.

This is the box of tricks:

awemawson:
Fortunately an openable unit susceptible to tinkering! Here I've substituted an 180 ohm resistor for the pt element and opened it for testing

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