摘要:
An apparatus for winding coils for stators of electrical machines having a former on which the coils are wound and which is made up of at least two portions movable radially towards and away from each other to vary the cross-section of the former between a large cross-section winding position, a small crosssection drawing-off position, and at least one intermediate cross-section winding position. A rod extending axially between the former portions is connected to these portions by a parallel linkage such that axial movement of the rod causes radial movement of the former portions. Stop members are movable into the path of axial movement of the rod and its associated parts to stop the rod at the intermediate position.
摘要:
A method and apparatus for bending the ends of thermoplastic insulating strips located in stator grooves back against the end faces of the stators. The ends are heated, bent back 90* while heated, and then held down as they cool off. Hot stamps engage both end portions of each strip while the stamps move towards their respective stator end faces at equal and opposite speeds, simultaneously pressing back both ends of each strip. A cold stamp is preferably mounted within each hot stamp so as to engage the bent back ends promptly after removal of the hot stamp. The apparatus may include a plurality of operating stations with the stators movable between them.
摘要:
A control arrangement for the wire supply of a stator winding apparatus is provided which produces an indication of when the amount of wire remaining in the supply drops below a predetermined level. The control arrangement includes an actual value resistance detector which produces an output voltage in accordance with the resistance of the supply and hence the wire remaining in the supply coil. A theoretical resistance value reference generator stores a voltage corresponding to the predetermined level referred to above and a comparator compares this voltage with that produced by the detector. The output of the comparator is utilized by control circuit which terminates operation of the winding apparatus and/or drives a suitable indicator.
摘要:
Apparatus including circularly arranged transfer bars movable to protrude axially from the front end of a former to automatically transfer wound coils from the former to mounting fingers of a device which inserts the wound coils in the stator grooves. A control device regulates feeding of wire to the former to form the coils in a manner which facilitates subsequent transfer of the coils from the former.
摘要:
A DEVICE FOR PLACING PRE-WOUND COILS INTO STATOR GROOVES INCLUDING A GENERALLY CIRCULAR STRIPPER MEMBER MOVABLE THROUGH THE STATOR. TEETH ARE ARRANGED ABOUT THE PERIPHERY OF THE STRIPPER MEMBER WITH FINGERS IN SLOTS BETWEEN THE TEETH. SOME FINGERS, AND PREFERABLY AT LEAST ONE FINGER ADJACENT EACH TOOTH WHICH CONTAINS A PREWOUND COIL TO BE PLACED INTO THE STATOR IS FIXED ONTO THE STRIPPER MEMBER FOR MOVEMENT THEREWITH AS THE LATTER MOVES THROUGH THE STATOR.