| 摘要 |
<p>A machine for forming windings on electric motor stators, of the type comprising a needle driven with rectilinear reciprocating motion combined with reciprocating rotary motion about its axis, and delivering by way of a contained point a copper wire unwinding from a reel in order to deposit it in slots in the stator armature, is such according to the invention that the needle axis x is eccentric to the stator centre y and lies at a distance a therefrom, along the axis of symmetry z of the slots to which it is adjacent, such that the height b of the needle point calculated as the distance between its end and the axis x is equal to or greater than the distance c between the axis x and the end of the tooth which frontally retains the winding in the slots, thus enabling the use of the traditional forming shoes and the relative tensioning devices to be dispensed with, so improving the winding quality and reducing the longitudinal reciprocating stroke of the needle.</p> |
