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How to wire a torque wrench on a CNC Milling machine?

  • 25-03-2010 8:55pm
    #1
    blah_frenchie
    Closed Accounts Posts: 12 ✭


    I'm looking for the exact procedure to wire that electronic torque wrench to the machine.
    What do you think?

    hurco.jpg


Comments

  • #2
    steifanc
    Registered Users, Registered Users 2 Posts: 235 ✭✭steifanc


    where are the coil signals coming from ? is the your clam an addition to the machine ?
    basically you need to find the start and stop signals from your machine , you could probably use aux on your contactors or relays depending on the machine set up , a bit more info maybe .
    is that a manufactures drawing ? seem non necessary repetitive process


  • #3
    blah_frenchie
    Closed Accounts Posts: 12 ✭blah_frenchie


    BLK3-25 is an output coming from the PLC.
    It is an auxiliary output and it is driven by Program Lines M52 (ON, +24V) and M62 (OFF, 0V)

    The Torque wrench is an addition to the machine so that the lads don't forget to clamp the part prior to machining.

    The program won't start until the part is clamped (Torque wrench)


  • #4
    steifanc
    Registered Users, Registered Users 2 Posts: 235 ✭✭steifanc


    is the output defined in the programme for the torque clamp ? or what dose the plc think its doing when activating that output ?
    can you edit the code in the plc to incorprate the n/o micro switch ?
    or are you trying to hard wire it ?
    really you should use both for saftey ,
    what brand of plc are you useing


  • #5
    blah_frenchie
    Closed Accounts Posts: 12 ✭blah_frenchie


    When the torque is applied (it closes the wrench microswitch for a few milliseconds), R1 closes and latches. the signal then goes from TB1-2 to TB1-3 through 1st switch of R1 and 1st switch of R2.
    The second switch of R1 is wired in series with the door interlock switch (via BLK 3-11).
    You can then start the program as the doors are closed and the torque has been applied.
    At the end of the program, you write a M52 block which closes R2 (via BLK 3-25)
    As R2 closes, R1 opens.
    Then there's a M62 block to reset R2.
    The machine is then ready to take the next cycle (clamp the part, close the door, run program, open the doors...etc)


  • #6
    steifanc
    Registered Users, Registered Users 2 Posts: 235 ✭✭steifanc


    what are the blocks ? software outputs ?
    so what do u need to do ? use your code in a programme or hard wire to a machine ? what software is the plc running ?


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  • #7
    blah_frenchie
    Closed Accounts Posts: 12 ✭blah_frenchie


    a block is a program line, so it is a software output.
    There's a bit of wiring to be done as well as some programming.
    It is pretty clear to me now and I will give it a start next week.


  • #8
    steifanc
    Registered Users, Registered Users 2 Posts: 235 ✭✭steifanc


    okey dokey ,
    if you can programme , all ya got to do is set up a internal relay that is operated when your clamp is closed ,
    put that relay in the start machine line using an `"and gate " function .

    then when your hard wireing break the start output for the machine threw the n/o contact of the clamp .

    ya should be sorted at that ,


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