Apparatus for winding and placing coils in the slots of a stator

Claim 2

Apparatus for winding and placing coils in the slots of a stator comprising an indexing conveyor, a plurality of placer heads carried by the conveyor at spaced intervals thereon, each placer head being adapted to hold coils for placement in the slots of a stator applied to the head, means for winding coils and transferring them to a placer head, means for indexing the conveyor to bring a placer head carrying coils to a placing station, and means at the placing station for pushing the coils from the placer head at the placing station into the slots of a stator applied to that placer head, said conveyor comprising a rotary index table, said placer heads extending upward from the table and being spaced at equal intervals around the table, said table being rotatable in steps corresponding to said intervals to index the placer heads from a transfer station, at which coils are transferred to a placer head, to the placing station, and to index the placer heads from the placing station back to the transfer station, each placer head comprising a set of fingers arranged in a circle with spacers between the fingers for receiving side portions of the coils, said coil pushing means comprising a stripper axially slidable within the set of fingers, and means for driving the stripper, wherein each set of fingers has its own stripper axially slidable therein, and wherein there is a single stripper driving means at the placing station for driving the stripper of the set of fingers at the placing station.

Claim 3

Apparatus as set forth in claim 1 wherein the stripper-driving means comprises a vertically reciprocable rod movable upward from a retracted position at the placing station below the table upward into the set of fingers at the placing station for driving the stripper of that set upward from a lowered retracted position in said set, and then movable downward, and means for connecting the rod to the stripper for pulling the stripper back downward to its retracted position when the rod moves downward and disconnecting the rod from the stripper when the stripper reaches its retracted position for withdrawal of the rod to enable indexing of the table.

Claim 4

Apparatus for winding and placing coils in the slots of a stator comprising a rotary index table, a plurality of placer heads carried by the table spaced at equal intervals therearound and extending upward therefrom, each placer head being adapted to hold coils for placement in the slots of a stator applied to the placer head, means for indexing the table to index the placer heads from a transfer station to a placing station and to index the placer heads from the placing station back to the transfer station, a rotary winding head extending over the table at the transfer station, a plurality of coil form means carried by the winding head spaced at equal intervals therearound and extending downward therefrom, means for indexing the winding head to index the coil form means from a winding station to the transfer station and to index the coil form means from the transfer station back to the winding station, means at the winding station for winding a wire into coils on the coil form means at the winding station, means for transferring coils from the coil form means at the transfer station downward to the placer head at the transfer station, and means at the placing station for pushing the coils from the placer head at the placing station into the slots of a stator applied to that placer head.

Claim 5

Apparatus for winding and placing coils in the slots of a stator comprising a rotary index table, a plurality of placer heads carried by the table spaced at equal intervals therearound and extending upward therefrom, each placer head being adapted to hold coils for placement in the slots of a stator applied to the placer head, means for indexing the table to index the placer heads from a transfer station to a placing station and to index the placer heads from the placing station back to the transfer station, a rotary winding head extending over the table at the transfer station, a plurality of coil form means carried by the winding head spaced at equal intervals therearound and extending downward therefrom, means for indexing the winding head to index the coil form means from a winding station to the transfer station and to index the coil form means from the transfer station back to the winding station, means at the winding station for winding a wire into coils on the coil form means at the winding station, means for transferring coils from the coil form means at the transfer station downward to the placer head at the transfer station, and means at the placing station for pushing the coils from the placer head at the placing station into the slots of a stator applied to that placer head.

Claim 6

Apparatus as set forth in caim 3 wherein each coil form means comprises a pair of coil forms located adjacent one another adapted for winding thereon of two sets of coils to constitute two pole windings for a stator, said winding head being adapted for indexing each pair of coil forms from the winding station to the transfer station for transfer of the two pole windings thereon to the placer head at the transfer station.

Claim 7

Apparatus as set forth in caim 3 wherein each coil form means comprises a pair of coil forms located adjacent one another adapted for winding thereon of two sets of coils to constitute two pole windings for a stator, said winding head being adapted for indexing each pair of coil forms from the winding station to the transfer station for transfer of the two pole windings thereon to the placer head at the transfer station.

Claim 8

Apparatus as set forth in claim 4 wherein each coil form embodies means for the winding thereon of coils of different sizes.

Claim 9

Apparatus as set forth in claim 4 wherein each coil form comprises a first set of pins for the winding thereon of a coil of smallest size, and additional successive sets of pins for successive winding of coils of successively larger sizes, and means for successively moving each successive set of pins from a retracted position to a winding position defining a winding configuration surrounding the preceding set of pins.

Claim 10

Apparatus as set forth in claim 5 wherein said winding means comprises a rotatable flyer for winding a wire into coils first around one of the coil forms and then around the other of the coil forms of the pair of coil forms at the winding station.

Claim 11

Apparatus as set forth in claim 7 wherein the flyer is shiftable between a first position for winding coils on said one of the coil forms of the pair of the winding station and a second position for winding coils on the other of the coil forms of the pair at the winding station.

Claim 12

Apparatus as set forth in claim 8 having means for traversing the flyer for level winding of the wire on the coil forms at the winding station.

Claim 13

Apparatus as set forth in claim 9 wherein each coil form is carried by the winding head for vertical movement relative to the winding head between a raised retracted position and a lowered winding position and having means for effecting raising and lowering of each coil form, whereby each one of the coil forms at the winding station may be raised to its retracted position for winding of coils on the other coil form at the winding station with the latter coil form in its lowered winding position.

Claim 14

Apparatus as set forth in claim 10 wherein the pair of coil forms at the transfer station is adapted to be lowered by their respective raising and lowering means into engagement with the placer head at the traNsfer station for transfer of coils and then raised to clear said placer head, and wherein each coil form includes a stripper for pushing the coils wound thereon down off the coil form onto said placer head.

Claim 15

Apparatus as set forth in claim 11 wherein each coil form comprises a carriage and means mounting the carriage for vertical movment relative to the winding head between a raised position and a lowered position, a first set of pins extending down from the carriage for the winding thereon of a coil of the smallest size, additional successive sets of pins mounted on the carriage for movement with the carriage and for movement relative to the carriage for successive winding of coils of successively larger sizes, means for successively moving each successive set of pins from a raised retracted position relative to the carriage to a lowered winding position relative to the carriage defining a winding configuration surrounding the preceding set of pins, and means for moving each carriage and the associated pins between its raised retracted position and its lowered position for winding of coils thereon at the winding station, and for transfer of coils therefrom to a placer head at the placer station.

Claim 16

Apparatus as set forth in claim 12 having means mounting certain of the pins in each set of pins for movement with respect to others of the pins in the set between an expanded winding position and a contracted position, mans for effecting said movement of said certain pins, and a stripper for pushing coils off the pins when said certain pins are contracted.

Claim 17

A coil winding comprising a rotatable flyer, a first arbor around which a wire may be wound into a coil by the flyer, and at least one additional arbor of larger size than the first arbor movable in axial direction relative to the first arbor between a retracted position clear of the first arbor for winding of the wire by the flyer into a coil on the first arbor and a winding position defining a winding configuration surrounding the first arbor for winding of the wire by the flyer into a second coil on the second arbor, means mounting said first arbor at one end thereof with its other end thereof for stripping a coil off its said second end, means mounting said second arbor at one end thereof for said movement relative to the first arbor with its other end free for stripping a coil off its said other end, each arbor including at least one member which is movable between an expanded winding position and a collapsed position for strippping of a coil therefrom and having means for moving said member between its said positions, and stripper means past which said first arbor extends and past which said second arbor extends when it is in its winding position for stripping coils from both the first and second arbors by relative movement of said stripper means and arbors after collapsing of said arbors.

Claim 18

A coil winding comprising a rotatable flyer, a first arbor around which a wire may be wound into a coil by the flyer, and at least one additional arbor of larger size than the first arbor movable in axial direction relative to the first arbor between a retracted position clear of the first arbor for winding of the wire by the flyer into a coil on the first arbor and a winding position defining a winding configuration surrounding the first arbor for winding of the wire by the flyer into a second coil on the second arbor, means mounting said first arbor at one end thereof with its other end thereof for stripping a coil off its said second end, means mounting said second arbor at one end thereof for said movement relative to the first arbor with its other end free for stripping a coil off its said other end, each arbor including at least one member which is movable between an expanded winding position and a collapsed position for strippping of a coil therefrom and having means for moving said member between its said positions, and stripper means past which said first arbor extends and past which said second arbor extends when it is in its winding position for stripping coils from both the first and second arbors by relative movement of said stripper means and arbors after collapsing of said arbors.

Claim 19

Apparatus for winding coils for placement in the slots of a stator comprising a rotary winding head, at least two coil form means carried by the winding head spaced at intervals therearound, means for indexing the winding head to index the coil form means from a winding station to a transfer station and to index the coil form means from the transfer station back to the winding station, each coil form means comprising a first arbor around which a wire may be wound into a coil and at least one additional arbor of larger size than the first arbor movable in axial direction relative to the first arbor between a retracted position clear of the first arbor for winding the wire into a coil on the first arbor and a winding position defining a winding configuration surrounding the first arbor for winding of the wire into a second coil on the second arbor, means mounting said first arbor at one end thereof on said winding head with the other end of said first arbor free for stripping a coil off its said other end, means mounting said second arbor at one end thereof on said winding head for said movement relative tO the first arbor with the other end of said second arbor free for stripping a coil off its said other end, each arbor incuding at least one member which is movable between an expanded winding position and a collapsed position for stripping of a coil therefrom and having means for moving said members between its said positions, and stripper means past which said first arbor extends and past which said second arbor extends when it is in its winding position for stripping coils from both the first and second arbors after collapsing of said arbors, means at the winding station for winding a wire into a coil on the first arbor of the coil form means at the winding station, and then, after movement of the respective second arbor to its winding position, winding the wire into a second coil on the second arbor, and means operable at the transfer station for effecting stripping of the coils from the collapsed arbors by relative movement of said stripper mean and arbors and transfers of the coils to a set of fingers.

Claim 20

Apparatus for winding coils for placement in the slots of a stator comprising a rotary winding head, at least two coil form means carried by the winding head spaced at intervals therearound, means for indexing the winding head to index the coil form means from a winding station to a transfer station and to index the coil form means from the transfer station back to the winding station, each coil form means comprising a first arbor around which a wire may be wound into a coil and at least one additional arbor of larger size than the first arbor movable in axial direction relative to the first arbor between a retracted position clear of the first arbor for winding the wire into a coil on the first arbor and a winding position defining a winding configuration surrounding the first arbor for winding of the wire into a second coil on the second arbor, means mounting said first arbor at one end thereof on said winding head with the other end of said first arbor free for stripping a coil off its said other end, means mounting said second arbor at one end thereof on said winding head for said movement relative tO the first arbor with the other end of said second arbor free for stripping a coil off its said other end, each arbor incuding at least one member which is movable between an expanded winding position and a collapsed position for stripping of a coil therefrom and having means for moving said members between its said positions, and stripper means past which said first arbor extends and past which said second arbor extends when it is in its winding position for stripping coils from both the first and second arbors after collapsing of said arbors, means at the winding station for winding a wire into a coil on the first arbor of the coil form means at the winding station, and then, after movement of the respective second arbor to its winding position, winding the wire into a second coil on the second arbor, and means operable at the transfer station for effecting stripping of the coils from the collapsed arbors by relative movement of said stripper mean and arbors and transfers of the coils to a set of fingers.