Method and apparatus for electromechanically retrofitting a...

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B - Operations, Transporting

23

P

29/10, 341/101

B23P 19/06 (2006.01) B23P 21/00 (2006.01)

Patent

CA 1155524

METHOD AND APPARATUS FOR ELECTROMECHANICALLY RETRO-FITTING A CONVENTIONAL AUTOMATIC SCREW MACHINE TO ACCEPT NUMERICAL CONTROL Abstract of the Disclosure A conventional single spindle automatic screw mach- ine, which includes a number of conventional operating machine mechanisms to perform the machine functions, is retro-fitted with air cylinder/air solenoid combinations actuatable by electrical signals to control the oper- ational sequence of the machine mechanisms, replacing the existing mechanical system of trip drums and trip dogs which perform that function. Also, the driving means which control the movement of the turret and the cross slides, and hence, the machine tool, relative to the work piece, is disconnected from the machine motor and made independently controllable by the addition of servo or stepping motors which are actuatable by external electrical signals. The electrical signals for control of the added motors and the air cylinder/air solenoid combinations are provided by a numerical control apparatus.

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