Thread cutting Automatic machines specially designed therefor

BPERFORMING OPERATIONS TRANSPORTING B23Machine tools B23GTHREAD CUTTING WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH

B23G1/00Thread cutting Automatic machines specially designed therefor

B23G1/02on an external or internal cylindrical or conical surface B23G1/04Machines with one working-spindle B23G1/06specially adapted for making conical screws B23G1/08Machines with a plurality of working spindles B23G1/10specially adapted for making conical screws B23G1/12Machines with a toothed cutter in the shape of a spur-gear of the like which is rotated to generate the thread profile as the work rotates B23G1/14specially adapted for making conical screws B23G1/16in holes of workpieces by taps B23G1/18Machines with one working spindle B23G1/185specially adapted for making nuts B23G1/20Machines with a plurality of working spindles B23G1/205specially adapted for making nuts B23G1/22Machines specially designed for operating on pipes or tubes B23G1/225automatically controlled B23G1/24portable B23G1/26Manually-operated thread-cutting devices B23G1/261Die and tap wrenches B23G1/262Tap wrenches having a V slot B23G1/263Die wrenches having a cylindrical opening and a clamping screw B23G1/264comprising tap wrench features with a V slot B23G1/265Die and tap wrenches with a guiding part B23G1/266Tap wrenches having a V slot B23G1/267Die wrenches having a cylindrical opening and a clamping screw B23G1/268comprising tap wrench features with a V slot B23G1/28with means for adjusting the threading tool B23G1/30without means for adjusting the threading tool B23G1/32by milling B23G1/34with a cutting bit moving in a closed path arranged eccentrically with respect to the axis of the rotating workpieces B23G1/36by grinding B23G1/38with grinding discs guided along the workpiece in accordance with the pitch of the required thread B23G1/40with grinding discs guided radially to the workpiece B23G1/42Centreless grinding B23G1/44Equipment or accessories specially designed for machines or devices for thread cutting B23G1/46for holding the threading tools B23G1/465comprising arrangements for reversing the rotation of the tool B23G1/48for guiding the threading tools B23G1/50for cutting thread by successive operations B23G1/52for operating on pipes or tubes