DE2102354A1 - Method and device for winding the rotors of electric motors - Google Patents

Description

dipping. LUDEWIG Dipl.-Phys. BUSE graduate phys. MENTZEL

715 Password: "rotor winding"

Robert Krups company, Solingen-Wald

Method and device for winding the rotors of electric motors.

The invention "relates to a method and an apparatus for winding the rotors of electric motors, in which each rotor is inserted into a clamping device and then with a rotatable winding arm, the wire is wrapped in the corresponding rotor slots, each after completion one winding the rotor is rotated and then the next winding is wound, and before winding the first one Winding after winding each winding of each rotor »the wire is led from the collector. With a well-known Method for winding the rotors of electric motors, each rotor is inserted individually by hand into a clamping device and then wrapped the wire in the rotor slots. After the windings have been completed, the rotor is off Take your hand out of the clamping device again. This means that an operator is required at each winding device. which takes the rotors out of the device and unwound Rotors starts up again.

The invention is based on the object of a method for to create a device of the type explained at the beginning, in which such disadvantages are avoided. This goal will

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According to the invention, this is essentially achieved in that the rotors are also used for storage purposes endless conveyor, in whose recordings the rotors can be used, from the insertion point to the clamping point and be brought to the place of use after winding, at which new rotors after removal of the wound rotors can be used in the recordings. This ensures that the wound rotors are spaced apart from one another can be removed from the conveyor, which also serves as a storage facility, and unwound rotors are used can be. The operator can thus operate several devices, since the stock keeping is the operator only remove the wound rotors and new rotors from each device at longer intervals must use.

Each rotor is advantageous after reaching the clamping point held by a clamping head that engages the rotor core and presses the rotor against a contact surface and before winding each winding of the rotor for setting BEZW. Alignment of the rotor slots in which the winding is to be placed, rotated. As a result, the one brought to the clamping point by the conveyor is in a simple manner Rotor clamped for winding the windings and aligned so that the wire to be wound is in the rotor slots is inserted.

Advantageously, at least one of the rotor's collectors becomes the collector of each individual winding before winding begins on the one facing the path of movement of the Wiokel Army Side covering cap brought into their division of action. As a result, the collector is in a simple manner during the Wiokelns covered so that the wire to be inserted into the rotor slots does not get caught on the collector.

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■ 210235A

During the winding process, each winding is expediently closed shortly before the desired number of turns is reached the speed of the rotating wrapping arm is reduced. This ensures that the wrapping arm after completion the winding movement stops in a predetermined position. This end position is reliable from the wrapping arm achieved because when the drive motor of the wrapping arm is switched off at the low speed of the Wiokelarm stops without overrun.

The wire is expedient before winding the first winding and after winding the peeler winding with the winding arm around a hook provided on each collector part. The wire is thereby easily connected to the wrapping arm also led to the individual collector parts in the desired manner.

A catch and pest hold-up device is advantageously closed after completion of the complete wire laying of each rotor, which holds the wire coming from the wrapping arm so that during the subsequent transport of the rotors from the Clamping point to the removal point the wire leaves at the clamping point. This will be the one coming from the wrapping arm Wire held tight after winding is complete, so that the wire breaks off when the rotors are transported away. The free The end of the wire has remained in the catching and holding device, so that the next one without difficulty. Rotor can be wound.

To carry out the procedure, the device can be used in advantageously have an endless conveyor which is also used to hold supplies and which is equipped with receptacles for insertion the rotors is provided and the rotors are cyclically fed to the processing point. This will make it easier Way, the rotors are cyclically fed to the processing station.

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In an expedient manner, several winding stations are arranged at the processing point. This allows in easier Way, several rotors are wound at the same time at the processing point. The performance of the device will thereby significantly increased.

Appropriately, the distances between the individual correspond Winding stations at roughly the same distance as the conveyor pick-up. This can be done in a simple manner with the Conveyor to the processing point rotors are directly clamped, aligned and wound. Advantageous the conveyor has such a number of receptacles, which corresponds to a multiple of the number of winding stations. As a result, contact stops can be provided in a simple manner on the conveyor, which are arranged in this way on the conveyor that in each case a number of rotors corresponding to the number of winding stations during a conveying cycle are fed to the individual clamping points.

Advantageously, the conveyor is formed by a link chain that is evenly spaced with carriers is provided that have the receptacles for the rotors. As a result, the conveyor is formed by a cheap chain, which can be performed in a simple manner for transporting the rotors via sprockets and on the only carrier for the Recordings of the rotors are provided.

In an expedient manner, the link chain is driven via a and a revolving sprocket and runs in a straight line in the two / 'ettenwheels. This allows the Chain can be used in a simple way for transporting the rotors. Due to the straight course of the chain between The chain wheels ensure that the winding stations are arranged in a row next to one another on the conveyor can.

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The plate-link chain with its sprockets is useful arranged between two horizontally arranged plates, the carrier provided on the link chain between the plates are guided and the plates have such a shape that they have the receptacles for the rotors Parts of the beams protrude laterally from the panels. This is a simple way of sagging Chain prevented by the plates between which the carriers are guided. The shape of the plate achieves that the mountings for inserting the rotors are freely accessible around the plates.

The recordings of the supports for the rotors of the vertically extending bores with inserted bushings are advantageous formed, in which the rotors can be used with their axis ends facing away from the collectors. This makes brewing easier Way the rotors are only inserted from above into the bores with their axis ends facing away from the collectors to become. An additional bracket is not required.

The link chain advantageously has several stops for actuating switches, the stops are arranged at equal distances from one another and the The spacing corresponds to the number of carriers that match the number of winding stations. This will make it easier Way when conveying the rotors with the conveyor one at a time the number of rotors supplied to the processing station corresponds to the number of winding stations.

Conveniently, the in one long side of the Conveyor arranged winding stations each one displaceable mounted clamping head is provided, which rests in the active position against the rotor core and this against the outer surfaces by contact ribs, which are arranged above the two plates that hold the conveyor between them.

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As a result, the individual rotors are clamped to the winding stations in a particularly simple manner.

The contact ribs are expediently arranged in the area of the winding stations and on the upper side of the upper ones attached to the two plates. As a result, an abutment rib is provided in a simple manner at each winding station, which with the clamping head cooperatively holds the rotor in place.

Each clamping head advantageously has a recess on its front end face, which is the outer surface of the laminated rotor core is adapted, while the contact surfaces of the ribs are smooth. This will make it easier Way each rotor at the winding points of the contact rib provided with a smooth contact surface and the one with a the outer surface of the rotor adapted recess provided clamping head held. The rotor is thus reliable and securely held. Since the link chain of the rotor with relatively If the tension is low around the sprockets, the tolerances between the individual winding stations are reduced and balanced between the individual recordings of the link chain.

Advantageously, the recess in the end face of the clamping head extends to the rotor grooves in which each just the wire is to be wrapped, while the remaining parts of the end face next to the recess by bevels and roundings are designed as guide surfaces for the wire to be wrapped. This achieves in a simple manner that the clamping head is also used to guide the wire to be wrapped, so that the wire is always wrapped in the rotor slots.

In an expedient manner, the clamping head is rotatable on a Shaft mounted, which in turn is rotatable and in the longitudinal direction

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is slidably mounted in plates. This ensures that the clamping head resting against the stationary rotors maintains its position when rotating the rotatably and slidably mounted in plates shaft.

The shaft is expediently shifted via a Bar through which the shaft extends and on the one hand against a fixed stop and on the other hand in the pressing direction with the interposition of an energy storage device against a second stop on the shaft. This will make it easier Way achieved that in the operative position, the clamping heads rest resiliently against the rotors and when pulling off the Clamping heads of the rotors, the shafts are positively driven from the bar.

Advantageously, the bar covers all waves of the device and is in a bonded position by two pneumatic cylinders the other end position can be transferred. As a result, all clamping heads can be withdrawn from the rotors at the same time in a simple manner and also be pressed against the rotors.

At its end facing the clamping head, the shaft advantageously has an angle arm consisting of a wire bracket with a guide roller provided at the free end, the one coming from a supply roll through the hollow shaft in the active position of the clamping head Wrap the wire in the rotor slots by rotating the shaft. As a result, the wire can easily be inserted into the rotor slots because the guide roller, which is provided on the wire bracket, has a circular movement path when the shaft is rotated runs around the rotor, wrapping the wire in the rotor slots.

In an expedient manner, all shafts of the device are driven by a common motor via drive belts with a toothed running surface drivable. This will in a simple way all

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The shafts of the device are driven synchronously so that the windings that are wrapped in the individual rotors have the same number of turns.

For two purposes, a rod is longitudinally displaceable in the support ribs on the sides facing the clamping heads, those in the areas in which the rotors can be pressed against the bearing ribs, under the effect of energy storage devices has standing in each one of the rotor grooves for alignment engaging pawls. This allows in a simple way the rotors are aligned by reciprocating the rod with the pawls.

The rod advantageously has recesses for receiving the pawls, and the pawls only protrude with their lugs engaging in the rotor grooves from the rods running flush with the contact surfaces of the ribs. Through this the contact surface of the contact ribs is not impaired, since only the nose is under the action of an energy store standing pawl protrudes from the contact surface and pressed against the action of the spring in the contact surface can be. The nose thus only protrudes from the display surface when it is in one of the grooves of the rotor can intervene.

The rod having the pawls for aligning the rotors with a pneumatic cylinder is advantageously from one end position can be moved into the other end position, and in the aligned position a catch ball engages, which is provided in the clamping head, into one of the rotor slots. This makes the rotors aligned in a simple manner held in the set position by the snap ball. With the rod having the pawls can also After winding each winding, the rotor can be rotated by one slot pitch so that the wire can move into the next rotor slots is wrapped.

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A catching and securing device for the wire is expediently provided at each winding station. Through this can be done in a simple manner after the completion of the windings on the rotors of the wire are held so that the free end of the wire is held when the finished Rotors are removed from the winding stations and new rotors are fed to the winding stations.

The catching and retaining device expediently consists of a fixed and a swivel arm, between which the wire can be pinched. As a result, the wire can be clamped between two arms in a simple manner.

It is advantageous to have one arm in its active surface Threaded pin used in such a way that about half the surface area of the threaded pin protrudes from the active surface, while a corresponding threaded hole is provided on the other arm, in which the threaded pin engages. Through this the wire to be held in place is in the area of the threaded hole and the threaded pin, which are in operative connection with one another so that the wire with the threaded hole is pressed into the threads of the threaded pin. Through this the wire is held securely without squeezing it. The sharp edges on the threads also achieves that when the rotors are transported away from the rotor to Retaining device leading wire torn off and the free end of the wire coming from the supply roll continues is being held.

Advantageously, the catching and retaining device is below the two that receive the conveyor between them Plates arranged, and the pivotable arm engages with a pinion in a sliding rack. This can be done in a simple manner by moving the rack over daa kitzol the pivotable arm in the release position and

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be transferred into the operative position.

The displaceable rack is actuated in an expedient manner all catching and restraint devices provided at the Wiokelstations. As a result, all catching and retaining devices are connected in a simple manner with a single toothed rack the changing stations operated.

Appropriately captured the one provided with the threaded hole Swivel arm with its closing movement with the threaded hole and presses it against the outer surface of the threaded pin. As a result, the wire is easily removed from the during the closing movement of the catching and retaining device approximately semicircular threaded hole captured and pressed against the threaded pin. A sideways slip of the to be captured There is no wire from the pivotable arm to fear.

It is advantageous to have a collector during each winding station associated with the Wickeins covering cap. As a result, the collector is covered in a simple manner when winding, so that the wire to be wrapped does not get caught on the collector.

Advantageously, the cap is rotatably mounted to a limited extent on a swivel arm. This can be done in a simple manner brought the cap into a release position and transferred with the swivel arm into a position in which the Rotors are fed to the winding station with the conveyor and transported away from the winding station after winding can.

Conveniently, the swivel arm of the cap is with a Axis mounted on the plates receiving the conveyor between them, the axis having a pinion and with this Pinion engages in a rack. This allows the caps provided on the swivel arms to pass through in a simple manner

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Shifting the rack via the pinion into the release position and transferred into the operative position.

Advantageously, the cap, which is rotatably supported to a limited extent on the swivel arm, can be rotated into an end position in which the wire can be guided to the collector. As a result, the wire can be guided to the individual collector parts in a simple manner before the winding of the first winding of each rotor and after the winding of each winding of the rotor.

Advantageously, the cap, which is rotatably supported to a limited extent on the swivel arm, is advantageous against the action of an energy storage mechanism in the end position rotatable, in which the wire can be guided to the collector. This is in a simple manner the rotation of the cap in the 3? Release position made against the action of an energy storage device, which then automatically pushes the cap into the Active position returns.

Each winding station is advantageously pivotable stored wire guide part associated with that of the xaa

Wire at the beginning of a winding into the

corresponding groove of the laminated rotor core can be introduced. This ensures that at the beginning of each winding the wire is correctly inserted into the corresponding groove.

In the drawing, the invention is in one embodiment shown, namely show:

the device according to the invention in plan view, the device in rear view, a section along the line III-III of FIG. 2, the conveyor provided on the device in rear view,

a section along the line V-V of the Pig. 4, a section along the line VI-VI of FIG. 4,

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Fig. 1 Fig. 2 Fig. 3 Fig. 4th Fig. 5 Fig. 6th

Fig. 7 shows a section along the line VII-VII eier Fig. 4, Tig. 3 a section along the line VIII-VIII in FIG. 4, FIG. 9 a section along the line IX-IX in FIG. 10 shows a section along the line X-X in FIG. 1,

partially broken away,
Figure 11 is a top plan view of the conveyor, in part

broken away,
12 shows a longitudinal section through a winding station, partially broken away,

FIG. 13 shows a section along the line XIII-XIII of FIG. 12, FIG. 14 shows a pivotable cover cap in a side view, FIG. 15 shows the top cap in a plan view, 16 shows a wire guide part in plan view, partially

broken away,
17 shows the wire guide part in side view.

The device shown in the drawing serves zurr. Winding the rotors 20 of electric motors. The device has eight winding stations I-VIII. How in particular can be seen from Fig. 3, the device consists of a foot part 21 on which two spaced apart, perpendicular plates 22 and 23 are supported. As can be seen from FIG. 1, the two are grounded vertically arranged plates 22 and 23 through rails 24 arranged at the ends rides a U-shaped cross-section at a distance from one another held. The drive motor 25 is provided between the two plates 22 and 23 and on the rear plate 23 flanged so that the drive pinion 26 protrudes to the rear from the rear hand 23. The drive motor 25 is powered by a three-phase control brake drive with a disc armature squirrel cage motor formed with braking effect, the speed of which can be changed and not when switching off runs after. The drive pinion 26 stands over a drive belt 27 with a toothed running surface with two intermediate wheels in aktivverbinduncf, wherein the drive belt 27 runs over guide rollers 29,30 and 31 so that the drive belt 27 on the

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Drive pinion 26 and the intermediate gears 28 one sufficient has a large wrap angle, the guide roller 29 is immovably attached to the back of the plate 23, while the two guide rollers 29 and 30 are slidably provided on the back of the plate 23 so that the Belt tension is adjustable. The two intermediate gears 28 are non-rotatably connected to one wheel 32 each and are each connected together rotatably attached to the rear of the plate 23. The two wheels 32 are each with a drive belt 33 toothed running surface with belt pulleys 34 in operative connection, the belt pulleys 34 being held non-rotatably on shafts 35 which in turn are each assigned to a winding I-VIII are. The shafts 35 are mounted in a manner to be described in the two plates 22 and 23 and protrude with their ends 36 carrying the pulleys 34 out of the rear side of the rear plate 23. The waves 35 are with evenly spaced from one another in the area of the upper edge of the plates 22 and 23. Thereby are of the one Drive belt 33 with toothed running surface, the shafts 35 of the winding station I-IV and of the second drive belt 33 with toothed running surface, the shafts 35 of the winding stations V-VIII are driven.

As can be seen in particular from FIG. 2, the shafts 35 of the winding stations I-VIII are in a horizontal line arranged in the area of the upper edge of the plates 22 and 23. The drive belt 33 with toothed tread are between the pulleys 34 of the shafts 35 guided via guide rollers 37, which are perpendicular to the back of the rear plate 23 are slidably mounted. This in turn allows the belt tension to be adjusted. It also makes a sufficient Wrap angle on the pulleys 34 of the Waves 35 scored. The two drive belts 33 with toothed Running surface are also assigned two further guide rollers 38 fixedly held on the rear plate 23, which in the Engage the area of the wheels 32 on the drive belt 33 and the

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Determine the wrap angle of the drive belts around the wheels 32. The belt pulley also engages on the drive belt 33 driving the shafts 35 of the winding stations V-VIII 39 to a control shaft 40 to be explained. By using the drive belt 27, 33 with toothed The shafts 35 of the winding stations I-VIII are running surface and the control shaft driven synchronously.

As can be seen in particular from FIG. 3, the Ψ shafts 35 are designed as hollow shafts and are rotatably and longitudinally displaceable with needle bearings 41 on the plates 22 and 23. At the front end 42 of the shaft 35, which protrudes from the front plate 22, a head 43 is held non-rotatably. This head 43 is provided with a recess 44 in which a guide roller 45 is provided for the wire 46 guided through the hollow shaft 35. A winding arm 43 , which consists of a wire bracket with a guide roller 49 provided at the free end, is arranged on the head. With this winding arm 47, in the active position of the shaft, the wire 46 coming from a supply roll (not shown) through the hollow shaft can be wound into the k grooves 50 of the rotor 20 by rotating the shaft 35. Wire tensioners and wire sensors and the like can be arranged between the rear end 36 of the shaft 35 and the supply rolls.

On the head 43 is on the side facing away from the wrapping arm 47 an adjustable counterweight 51 is provided, with which a balancing can be carried out. At the free end of the Head 43 is a clamping head on a peg-shaped extension 52 53 rotatably mounted. The clamping head 53 is still used descriptive way for clamping the rotor 20 and thus makes the rotary movement of the shaft 35 when wrapping the 46 not with wire. On the underside of the clamping head 53 a weight 54 is provided so that the clamping head 53 always

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always maintains its basic position shown in FIG. 3.

As already mentioned, the shaft 35 is displaceable in the longitudinal direction. The displacement takes place via a bar 55 which encompasses all eight shafts 35, the shafts 35 reaching through the bar 55 and rotatable with ball bearings 56 and displaceable in the bar 55 in the longitudinal direction are stored. As shown particularly in FIG. 1, the bar to the piston rods 57 of pneumatic cylinders 58 is secured _t the a pneumatic cylinder 58 between the shafts 35 of the winding stations II and III, and the second pneumatic cylinder 58 between the shafts 35 of the winding stations YI and VII. The two pneumatic cylinders 58 are fastened in bores 59 of the rear plate 23. Stop pins 60 are attached to the strip 55 at the fastening points for the piston rods 57 on the side facing away from the piston rods 57 which cooperate with stops 61 provided on the front plate 22. With these stop pins 60 and stops 61, the Hu b the pneumatic cylinder 58 adjustable so that the displacement of the bar 55 can be adapted to the given requirements.

In FIGS. 1 and 3, the bar 55 is in the operative position shown, in which the clamping head 53 would rest against the rotor 20 if rotors 20 were shown. The bar lies with its ball bearing 56 against a helical compression spring 62, which on the other hand is supported against a disk 63. The disk 63 is in turn supported by bushings 65 and 65 and the inner ring 66 of the needle bearing 41 against the head. 43 from. The pressing of the clamping head 53 against the rotor 20 takes place resiliently, since the ball bearing 56 of the bar 55 can be moved on the V / all 35. When transferring the Bar 55 in the release position, the bar 55 is moved in the direction of the pneumatic cylinder 58 and thus the

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Clamping head 53 withdrawn from rotor 20. That can be moved on the Shaft 35 arranged ball bearings 56 of the bar 55 is supported directly via bushings 67 and 68 and via the inner ring 66 of the second needle bearing 41 against the one on the rear End 36 of the shaft 35 attached pulley 34 from.

As can be seen in particular from FIG. 1, a conveyor 69 is attached to the front plate 22. To the bracket two horizontally extending pins 71 are provided on the front plate 22 with screws 70. On this peg is the conveyor 69 with two vertically extending support parts 72 pushed on and held with screws 73. On the supporting parts 72, an elongated plate 75 is fastened with screws 74. About this plate 75 is interposed a second plate 77 is supported by screws 78 from a plurality of spacers 76.

Between the two plates 75 and 77. Is how in particular 7, an endless chain 79 is mounted. At the ends of the plates 75 »77, one is rotatable on the one hand mounted sprocket 80 and on the other hand a chain pinion 81 is provided, the chain pinion 81 being drivable with a motor 82 is. The motor 82 is with the interposition of a flange plate 83 with screws 84 on the underside of the Plate 75 fastened, the screws 84 engaging in elongated holes 85. On the underside of the plate 75 is a bar fastened with screws 87. In the bar 86 a horizontally extending screw 88 is provided, which is with her the free end rests against the flange plate 83. The screw is provided with a lock nut 89 so that with the screw 88 the flange plate 83 and thus the motor 82 and the chain pinion 81 can be adjusted. By adjusting the screw 88 the tension of the chain 79 can thus be adjusted. As already mentioned, the chain 79 is via a sprocket 80 and a chain pinion 81 out. Between these two wheels

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the chain 79 runs in a straight line. The chain 79 has tabs 90 which are provided with lateral extensions 91 are. As can be seen in particular from FIG. 13, every sixteenth link plate 90 has such an extension 91 provided. A carrier 93 is held on the extension 91 with screws 92, which is between the two Plates 75 and 77 is performed. The two plates 75 and 75 have such a shape that parts of the carrier 93 protrude laterally from the plates 75, 77 when the chain 79 is being transported. The side from the plates 75, 77 protruding parts of the carrier 93 have perpendicular Holes 94. As in particular from the Pig. IO and 12, sockets 95 are provided in these bores 94, in which the rotors 20 can be used with their axis ends 97 facing away from the collectors.

As can be seen in particular from FIG. 1, the conveyor 69 has twenty-four carriers 93. Of these twenty-four Carriers 93 are assigned eight carriers 93 to the changing stations I-VIII. With this conveyor 69 can thus wound rotors 20 are transported away from the winding stations I-VIII and unwound rotors 20 are transported to the winding stations I-VIII are supplied. The chain 79 can consist of three, not shown, over the length of the chain 79 distributed stops which interact with switches for the motor 82. This makes him * -oi is sufficient that the carrier provided with unwound rotors 20 93 stop after reaching the winding stations I-VIII by switching off the motor 82.

On the top of the plate 77 are 98 abutment ribs with screws 99 attached (Fig. 13). The rotors 20 are pressed against these abutment ribs 99, when the shafts 35 with the Clamping heads 53 are transferred into their operative positions.

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This active position is in the Pig. 12 shown. The clamping heads 53 point at their front end faces each has a recess 100, which is the outer surface of the rotor lamination packet 101 are adapted. The contact surface 102 of the contact rib 99 is smooth. When pressing the Rotors 20 against the abutment ribs 99 by the clamping heads 53 are made reliable by the recesses 100 of the clamping heads 53 Brackets of the rotors achieved for winding. Like the Pig in particular. 11 can be seen, is the recess 100 of the clamping heads 53 designed such that they extend to the rotor grooves 50, in each of which the Wire 46 is to be wrapped while the next to the recess 100 remaining parts of the face by sawing off

103 and roundings are designed as guide surfaces for the wire 46 to be wrapped.

The distances between the supports 93 receiving the rotors 20 correspond essentially to the distances between the individual changing stations I-VIII. However, the chain 79 becomes relatively loose around the sprocket 80 and the chain pinion 81 out, so that the tolerances when striking the clamping heads 53 are balanced against the laminated rotor stacks 101.

A rod is located in the contact surfaces 102 of the contact ribs 99

104 mounted longitudinally displaceable. The rod 104 covers all eight winding stations I-VIII. In the area of the changing stations I-VIII, the rod 104 is provided with recesses 105. In these recesses 105 pawls 107 are pivotably mounted about vertical axes IO6. The pawls 107 are standing while under the action of helical compression springs 108, which on the one hand against the bottoms 109 of recesses 110 and on the other hand support against the boundary wall 111 of the recesses 105. The pawls 107 protrude with their lugs 112 from the Rods 104 out, in each case in the area of the adjacent rotor 20. The lugs 112 of the pawls 107 engage

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each one of the grooves 50 of the rotor 20.

The rod 104 is with the piston rod 113 of a pneumatic cylinder 114 connected. The pneumatic cylinder 114 is there supported on a flange 115 which in turn is supported on the upper plate 77 of the conveyor. When actuated of the pneumatic cylinder 114 in the direction in which the piston rod 113 is pushed out of the cylinder 114 is, the rod 104 moves in the bearing ribs 99 », with the nose 112 of the pawl 107 in the rod Io4 against the action of the spring 108 is pushed in. The nose 112 of the pawl 107 is on the lateral surface during this movement of the rotor 20 until it engages the next groove 50. During the subsequent movement of the piston rod 113 in the opposite direction, the rod 104 resumes its position shown in FIG. 13 and rotates the Rotors 20. The return movement of the piston rod 113 is adjustable by means of a stop pin 116 with a lock nut 117 limited with the stop pin 116 against the flange 115 strikes. By actuating the pneumatic cylinder 114, which performs a reciprocating movement, the rotors are rotated by one slot pitch. The adjustable stop pin 116 ensures that in the end position the rotors 20 are in the Clamping heads 53 are arranged so that the wire 46 can be wrapped in the grooves 50. In the clamping head 53 is included a spring-loaded ball 152 is provided which is inserted into one of the Grooves 50 engages. The rotors 20 are rotated with the rod 104 and the pawls 107 not only by one slot pitch each, but also immediately after clamping the rotors for wrapping the first winding. For this purpose, the pneumatic cylinder 114 is also actuated so that the grooves 50 of the rotor 20 are aligned.

Each winding station I-VIII is, as in particular from the

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Pig. 10 and 11, a pang and pest holding device 118 for the wire 46 is assigned. These pang and fes thai devices.! are held on the underside of the lower plate 75 of the conveyor 69 with a screw 119 each. The pang and pest holding device 118 each has a fixed arm 120 and a pivotable arm 121, between which the wire 46 can be clamped. As in particular from the Pig. 10, the pivotable arm 121 is fastened to a pinion 122, which in turn is rotatably supported by ball bearings 123 on the fastening screw 119. The fixed arm 120 is held on the plate 75 in a manner not shown. The pinion 122 meshes with a rack 124 that engages all of the pang and pest holding devices 118. The rack 124 is guided in grooves 125 of the support parts 72. Furthermore, the rack 124 is guided in three further guide blocks 126, which are also held on the underside of the plate 75 and have grooves 127. The rack 124 is respectively in the grooves 125. 127 held by cover plates 128, respectively, with screws 129 on the support parts 72. are attached to the guide blocks 126.

The rack 124 is on the piston rod 130 of a pneumatic cylinder 131, which in turn is held with flanges 132 on the underside of the plate 75. The hub of the pneumatic cylinder 131 is adjustable by means of a threaded pin 133 with lock nuts 134.

By actuating the pneumatic cylinder 131, the pivotable arm 121 is rotated in the direction of the fixed arm 120 via the rack 124 and the pinion 122 and the wire 46 is clamped in a manner to be described below. As in particular from the Pig. II, the pivotable arm 121 has at its free end a partial bore 136 provided with a thread 135, which cooperates with a threaded pin 137 ⁷ which is provided at the free end of the fixed arm 120

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The threaded pin 137 is in the fixed arm 120 inserted in such a way that approximately half the surface area of the threaded pin 137 is out of the active area of the fixed arm 120 protrudes. The wire 46 is in the area of the threaded pin 137 and the threaded part 135 136 of arms 120 and 121 held. The partial bore 136 provided with thread 135 presses the wire 46 into the Threads of the threaded stem 1371 so that a reliable Plague keeping the wire 46 is effected.

The wire 46 is held after the winding of the last winding on the rotors 20, the shaft in such The position remains in which the wrapping arm 47 protrudes downwards. The wire 46 running from the rotor to the wrapping arm 47 is arranged between the two arms 120 and 121, so that when the catching and retaining devices are actuated 118 the wire 46 is held in place. During onward transport of the finished rotors 20 with the conveyor 69, the wire 46 is torn off in the area of the threaded pin 137, but the free end of the wire 46 is held. After the arrangement of empty rotors 20 at the winding points I-VIII the wire 46 can then be reinserted in the grooves 50 of the Rotor 20 because the free end of wire 46 is still from the catch and restraint devices 118 is being held.

Each winding station I-VIII is a collector 96 of the Rotor 20 associated with covering cap 138 during winding. The cap 138 is limited to a pivot arm 139 rotatably mounted. The pivot arm 139 is rotatably attached to an axis 140, which in turn is not shown in FIG Way is mounted in the plates 75, 77 of the conveyor 69 and with a pinion not shown in detail engages in a rack 141. The rack 141 is just like the rack 124 in grooves 125 and 127 of the support

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parts 72 and the guide blocks 126 are slidably mounted and can be actuated with a pneumatic cylinder 142. Through this the swivel arm 139 with the cap 138 can be transferred into the operative position by actuating the pneumatic cylinder 142 in which the cap 138 covers the collector 96 of the rotor 20. A pneumatic cylinder is on the swivel arm 139 143 is provided, which pivots the cap 138 with its piston 144. The pivotability of the cap 138 makes it possible to the wire to be wrapped in the grooves 50 of the rotors 20 before the start of winding and after the completion of each winding on the hooks 145 of the collector sectors 96 hang up. The cap 138 is under the action of a helical compression spring 146, which the cap 138 after draining of the pressure in the pneumatic cylinder 143 in the basic position in which the collector 96 through the cap 138 is covered.

As can be seen in particular from FIGS. 16 and 17, each winding station I-VIII is a pivotably mounted wire guide part 147 assigned, with which the

: Wire 46 can be introduced into the corresponding groove 50 of the laminated rotor core 101 at the beginning of each winding is.

As mentioned earlier, the conveyor 69 has twenty-four Support 93 for receiving rotors 20. Of these twenty-four carriers are at the standstill of the conveyor eight assigned to the changing stations I-VIII. Those brought to the winding stations I-VIII by conveyor 69 Rotors are pressed in the manner described by the clamping heads 53 against the abutment ribs 99 and in the is aligned with the pawls 107 provided on the rod 104. Furthermore, the caps 138 out with the pivot arms 139 over the collectors 96. By actuating the pneumatic cylinder 143, however

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the cap 138 is moved into the release position so that the wire 46 rait the wrapping arm 47 around the shark 145 one Sector of the collector 96 can be placed v / ground. As already explained, the wrapping arm 47 shows after the end of the wrapping process downward. The end of the wire 46 is held in the catching and retaining device 118. When moving in of a new wire 46 in the device, the free end of the wire can be rotated around a screw 148, so that the end is fixed. For wrapping the wire 46 around the hook 145 the wrapping arm 47 executes a movement which is opposite to the actual winding movement. Before killing of the wire 46, the wire guide part 147 has been brought into its position shown in FIGS. 16 and 17, so that the wire 46 can be reliably instructed in the groove 50 to be wound, the one opposite to the collector On the side of the rotor assembly, a loop 153 is created between the grooves 50. After hanging the wire 46 on the hook 145, the cap 138 is transferred into its operative position and the wrapping arm 47 continues its actual wrapping movement. To the Control of the backward movement of the wrapping arm 47 is provided by the control shaft 40, which is equipped with permanent magnets and actuated the drive motor 25 via reed contacts and relays. The wire guide part 147 has an axis 149, which in FIG The manner shown is rotatable on the plates 75, 77 of the conveyor 69 and meshes with a rack 150 with a pinion Rack 150, like rack 124 and 141, is held in grooves 125 and 127 of support parts 72 and guide blocks 126 and can be operated with a pneumatic cylinder 151.

As already mentioned, the wire 46 is then bent into the corresponding grooves 50 of the rotor 20. The winding speed is different. It starts at a slow speed, which then increases until the greatest speed is reached. The Um-

- 24 -

209832 / Ü34B

rotations of the wrapping arm are then based on the control shaft 40 counted, the speed being reduced shortly before the set number of turns is reached. the the last revolutions are carried out at a lower speed. After this winding is made, the The rotor 20 is rotated by one slot pitch in the manner described and the wire 46 is attached to the next hook 145 of the Collector 96 hung. Then the wire 46 wrapped in the next slot of the rotor. This is repeated until all grooves 50 of the rotor 20 windings

P gen. After winding the last turn, the wire 46 becomes a hook 145 of the collector one last time 96 and then the pang and plague holding device 118 actuated, which holds the wire 46 in place. Then the clamping heads 53 are released, the wire guide parts and the cap 138 with the pivot arm 139 removed from the rotors, so that the rotors 20 then with the conveyor 69 can be transported further. When the finished rotors 20 are transported away, unwound rotors become the winding stations I-VIII supplied. After the plague stretching the uncoiled Rotors 20 can run the work process again. The individual work steps are automatic

. controlled so that the operator only needs the wrapped To remove rotors 20 from the conveyor 69 and to use unwound rotors.

As already mentioned, the embodiment shown is an example implementation of the invention and this is not limited to that. Rather, many other designs and applications are possible. So could the invent The device according to the invention can also be equipped with more or less than eight winding stations. Also could the sponsor also with more than twenty-four carriers be equipped so that the operator only after

-25-209832 / 034B

several winding cycles the wound rotors 20 from the Take out conveyor and insert empty rotors. Furthermore, the removal and insertion of the rotors can also be done by machine.

209832/0345

Claims (1)

DiPL-ING. LUDEWIG graduate phys. BUSE graduate phys. MENTZEL - 26 - Claims t (I)) Method for winding the rotors of electric motors, in which each rotor is inserted into a tensioning device and the wire is then wrapped in the corresponding rotor slots with a rotatable winding arm, with the rotor being rotated after completion of a winding and then the next winding being wound is, and before winding the first winding and after winding each winding of each rotor the wire is fed to the collector, characterized in that the rotors (20) by means of an endless conveyor (69) also serving for storage in its receptacles (94 ) the rotors (20) can be used, are brought from an insertion point to a clamping point and, after winding, to the insertion point at which new rotors (20) can be inserted into the receptacles (94) after the wound rotors (20) have been removed . 2) Method according to claim 1, characterized in that each rotor (20) after reaching the clamping point by one which acts against the laminated rotor core (101) and presses the rotor (20) against a contact surface (102) Clamping head (53) held and before winding each winding of the rotor (20) for setting BEZW. Alignment the rotor slots (50) in which the winding is to be placed is rotated. 209832/0345 3) Method according to claim 1 or 2, characterized in that before the beginning of the winding of each individual winding one covering the collector (96) of the rotor (20) at least on the side facing the movement path of the wrapping arm (47) Cover cap (138) is brought into its operative position. 4) Method according to one or more of claims 1-3 » characterized in that during winding each winding shortly before reaching the desired number of turns the speed of the rotating wrapping arm (47) is reduced. 5) Method according to one or more of claims 1-4 » characterized in that before winding the first winding and after winding each winding with the Wrapping arm (47) the wire (46) is placed around a hook (145) provided on each collector part (96). 6) Method according to one or more of claims 1-5, characterized in that after completion of the complete Wiring of each rotor (20) a 3? Ang- and Pesthaltervorrichtung (118) is closed, which the from Wrapping arm (47) holds the incoming wire (46) in place, so that the rotors (20) are transported from the clamping point during the subsequent transport to the removal point of the wire (46) at the Tears off the clamping point. 7) Device for carrying out the method according to one or more of claims 1-6, characterized in that the device has an endless conveyor (69) which also serves to hold supplies and which is equipped with receptacles ( ¹ JA) for inserting the rotors (20) is provided and the rotors (20) feeds the processing point cyclically. 209832 / 034b \ ■ · ^: - ^ - 8) Device according to claim 7, characterized in that that several winding stations (I-VIII) are arranged at the processing point. 9) Device according to claim 7 or 8, characterized in that the distances between the individual Winding stations (I-VIII) correspond approximately to the distances between the receptacles (94) of the conveyor (69). 10) Device according to one or more of claims 7-9> characterized in that the conveyor (69) has such a number of receptacles (94) that is a multiple correspond to the number of changing stations (I-VIII). 11) Device according to one or more of claims 7-10, characterized in that the conveyor (69) of egg Link chain (79) is formed, which in uniform Distances is provided with supports (93) which have the receptacles (94) for the rotors (20). 12) Device according to one or more of claims 7-11, characterized in that the link chain (79) over one driven and one following chain wheel (81, 80) is guided and between the two chain wheels (80, 81) runs in a straight line. 13) Device according to claim 12, characterized in that the link chain (79) with its sprockets (80,81) is arranged between two horizontally arranged plates (75 »77), the ones provided on the link chain (79) Tauiger (93) guided between the plates (75 »77) are and the plates (75,77) have such a shape that the LÜTnahm (94) for the rotors (20) Parts of the supports (93) protrude laterally from the plates (75, 77) all around, -29- 209832/0345 14) Device according to one or more of claims 7-13, characterized in that the receptacles (94) of the carrier (93) for the rotors (20) of perpendicular Bores (94) formed with inserted sockets (95) are, in which the rotors (20) can be used with their axis ends (97) facing away from the collectors (96). 15) Device according to one or more of claims 7-14, characterized in that the link chain (79) several Has stops for actuating switches, the stop saws being arranged at equal distances from one another and the distances correspond to the number of carriers that correspond to the number of winding stations (I-VIII). 16) Device according to one or more of claims 7-15 »characterized in that on one longitudinal side of the conveyor (69) arranged winding stations (I-VIII) each a displaceably mounted clamping head (53) is provided is, which in the operative position rests against the rotor core (101) and this against the outer surfaces (102) of Abutment ribs (99) press on, which over the two, the conveyor (69) between them receiving plates (75,77) arranged 3ind, 17) Device according to claim 16, characterized in that the contact ribs (99) each in the area of the winding stations (I-VIII) and attached to the top of the upper one of the Mden plates (75,77). 18) Device according to one or more of claims 7-17, characterized in that each clamping head (53) has a recess (100) on its front face, ULe is adapted to the outer surface of the rotor core (101), while the contact surfaces (1 ( 2 ) the ribs (99) are smooth. -50- 209832/0345 19) Device according to claim 18, characterized in that the recess (100) in the end face of the clamping head (53) extends to the rotor grooves (50), in each of which the wire (46) is to be wrapped while the parts of the end face remaining next to the recess (100) by bevels (103) and roundings as Guide surfaces for the wire to be wrapped (46) are formed. 20) Device according to one or more of claims 7-19, characterized in that the clamping head (53) is rotatable * Is mounted on a shaft (35), which in turn is rotatably and longitudinally displaceable in plates (22,23). 21) Device according to claim 20, characterized in that the displacement of the shaft (35) via a bar (55) takes place, which is penetrated by the shaft (35) and on the one hand against a fixed stop (66,67,68) and on the other hand in the pressing direction with the interposition of an energy store (62) against a second stop (64,65,66) the W He (35) is applied. 22) Device according to claim 21, characterized in that that the bar (55) covers all shafts (35) of the device and of two pneumatic cylinders (5B) from one End position can be converted into the other distortion. 23) Device according to one or more of claims 1-2.2, characterized in that the wool (35) at its end facing the gripping head (53) has a wic: t, 'lar.ii (47) consisting of a wire bracket (4 ^) wit on the free 3rd «intended leadership role (49)», which in: 1er ■ 'AfirKatell des Jparmkopi'c / ii ('>->) the role of a Vovvatv.- through the al.a Hohlwullu auii, ">.; ii Lüe te V / eile (55) coming "Di ah t (46) du rna ürwruin dtiv , vik · t 5'O In ■: e ho t ο r η U *: ei ι (5 O) e ί nw i a> ί e 1 f. , 20-3 8 3.2 / 0345 ^BAD O ^R ' ^GlNA! - 24) Device according to one or more of claims 7-23, characterized in that all shafts (35) of the device are driven by a common motor (25) via drive belts (27,33) can be driven with a toothed running surface. 25) Device according to one or more of claims 7-24, characterized in that in the contact ribs (99) the sides facing the clamping heads (53) a rod (104) is mounted to be longitudinally displaceable in the areas in which the rotors (2ü) can be pressed against the bearing ribs (99) are under the action of energy storage devices (108), each in one of the rotor slots (50) for alignment engaging pawls (107) on v / eist. 26) Device according to claim 25, characterized in that the rod (104) has recesses (105) for receiving the pawls (107) and the pawls - (107) with their lugs (112) engaging in the rotor grooves (50) protrude from the rod (104) running flush with the contact surfaces (102) of the ribs (99). 27) Device according to claim 25 or 26, characterized the
shows that the pawls (107) having rod (104) for aligning the rotors (20) with a pneumatic cylinder (114) can be displaced from one end position to the other, and in the aligned position a snap ball (152) which is provided in the clamping head (53), engages in one of the rotor grooves (50). 2B) Device according to one or more of claims 7-27, characterized in that at each winding station (I-VIII; a catching and securing device (118) for the "wire" (4-6) is provided. SAD ORIGINAL 209832/03 Fig 29) Device according to claim 28, characterized in that the catching and retaining device (118) consists of one fixed and a pivotable arm "(120, 121), between which the wire (4-6) can be clamped. 30) Device according to claim 29, characterized in that that on one arm (120, 121) in the active surface of which a threaded pin (137) is inserted in such a way that, for example, the half of the lateral surface of the threaded pin (137) protrudes from the active surface, while on the other arm (121 or 120) a corresponding threaded hole (135,136) is provided, ™ into which the threaded pin (137) engages. 31) Device according to one or more of claims 28-30, characterized in that the pang and retaining device (118) is arranged under the two the conveyor (69) between receiving plates (75,77) and the pivotable arm (121) with a pinion (12 2) in a sliding rack (124) engages. 32) Device according to claim 31, characterized in that that the sliding rack (124) all at the changing stations (I-VIII) provided safety and restraint devices (118) actuated. 33) Device according to one or more of claims 28-32, characterized in that the one with the threaded hole (135,136) provided swivel arm (120, 121) with the threaded hole (135, 136) during its closing movement The wire (46) is gripped and pressed against the outer surface of the threaded pin (137) *. -33- 209832/0345 34) Device according to one or more of claims 7-33, characterized in that each winding station (I-VIII) a cap (138) covering the collector (96) during winding is assigned. 35) Device according to claim 34, characterized in that the cap (138) is limited to a pivot arm (139) is rotatably mounted. 36) Device according to claim 34 or 35, characterized in that that the pivot arm (139) of the cap (138) with an axis (114) to the conveyor (69) between them receiving plates (75,77) is mounted, wherein the axis (114) has a pinion and with this pinion in a Rack engages. 37) Device according to one or more of claims 34-36, characterized in that the limit on the pivot arm (139) rotatably mounted cap (138) can be rotated into an end position in which the wire (46) to the collector (96) is feasible. 38) Device according to claim 37, characterized in that the rotatably mounted to a limited extent on the pivot arm (139) Cap (138) is rotatable against the action of an energy store (146) in the end position in which the wire (46) for Collector (96) is feasible. 39) Device according to one or more of claims 7-38, characterized in that each winding station (I-VIII) is assigned a pivotably mounted wire guide part (147) with which the imXki ^ O ^ ae ^ a ^ Tii ^^ iisammixäLWi wire (46) can be introduced into the corresponding slot (50) of the laminated rotor core (101) at the beginning of a winding. 209832/0345 Blank page