DD141381A1 - METHOD FOR OPERATING AUTOMATIC ANCHOR-WRAPPING MACHINES, AND WIRE PICKLING DEVICE, CONTROL AND DRIVE DEVICE FOR CARRYING OUT SAID METHOD - Google Patents

Description

Method of operating automatic armature winding machines and wire insertion device, control αηά drive

The invention relates to a method of operating automatic armature winding males in which, after completion of the coil windings, the collector tabs of the winding wires are connected to the individual collector slots and to a wire insertion device and control and drive device for carrying out the method.

There are known devices (US-PS 3,160,037) _} the A laying the wires in the collector slots long, over the collector protruding wire loops arise, so that they are cut off on Kollektorsohlita.müssen »Another such Ankerwindelmaschine is from the DS PS 1 613 313 known, in which the laying fingers is pivoted into the space between the armature and the collector so that the same direction guided over a loop hook wires are aligned parallel to the axis and inserted by a movable hold-down in the collector slot and subsequently caulked, the over the collector slot

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protruding wires of the terminal loop are disconnected «

Devices are also known which, while satisfying the requirement for short wire loops, require a very accurate slot width and an elaborate pitch accuracy of the collector slots. Such a method on an armature winding machine is known from US-PS 3 395 449, in which the two pieces of wire of the loop are inserted into the associated collector slot by means of loop-forming arms.

These known Wickeldrahteinlegevorrichtungen use for stepwise rotation of the collector anchor held in a jig, preferably by a stepper motor operated drive device. Such a drive device is known, for example, according to US-PS 3,973,738 (Fig. 9), in which the stepper motor via a drive shaft, and by means of a belt via drive pulleys an armature tensioning shaft drives, said at the end of the armature tensioning shaft in a tensioning device of the collector anchor by means of his Collector-side armature shaft is held.

A Uachteil here is that the transmission, for example by means of a belt, a game between the drive device and the anchor tensioning shaft can not avoid what can adversely affect when inserting the wire loops in the collector 'slots of the collector anchor, so often additional Means for game compensation will be necessary.

This results in even more shortcomings, for example, in a direct sampling of the collector slots an exact collector slot division is required, since all inaccuracies of the slot division on the

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symmetrically opposite collector slots, in which the wire loops are inserted, can transfer unfavorable.

Object of the invention

The aim of the invention is to make the production of the connection of the collector terminals of the winding wires with the individual collector slots simpler and more economical «

presentation; of the essence of the invention

The object of the invention is to provide a method for anchor wiping machines for the production of short wire loops on anchors with slot collectors, and a wire insertion and drive device for carrying out the method to Bchaffen, on the one hand accurate turning and positioning of the armature and on the other hand accurate wire loop formation ensure without having to use collectors with elaborately accurate collector slot pitch.

According to the invention the object is achieved by the following method steps:

a) the armature is wound in a known manner with the coil winding j

b) a controller and drive device with a dividing disc brings the collector respectively in the position that the individual collector slots are below a Leitstückes a wire insertion device,

c) the winding wire of the respective coil winding is caught by a lateral pivoting movement of a guided from the starting to the fishing position fishing hook,

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d) the catch hook with the held winding wire is pivoted back into the starting position,

e) subsequently the catch hook is pushed back axially parallel to the collector, wherein at the same time the winding wire is inserted via the conically shaped guide piece in the corresponding collector slot,

f) the collector slot with the inserted winding wire is caulked by a guided through a recess of the Leitstückes caulking, and

g) by winding arms rotating backwards, the winding wire inserted in the collector slot is pulled around the caulking point over one edge of the guide piece and inserted into the same collector slot with the simultaneous formation of a wire loop *

By the method according to the invention anchoring of the wire loop is achieved at the caulking point of the collector slot, whereby an extremely reliable connection is ensured ·

Another advantage is that on the Leitstück in the formation of the wire loop a more accurate, faster and trouble-free workflow is possible.

A wire insertion device for carrying out the method is characterized in that a pivotable safety gear with the fishing hook and the collector relative to the radially displaceable caulking tool are independently operable, and that the caulking is inserted into a recess of the guide piece, and the guide piece has a leading edge, through which the wire in the respective

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Collector slot for forming a wire loop can be inserted.

It is particularly advantageous if the control and drive device sur performing the method on a common shaft has a drive motor with a tachogenerator and a tensioning device mit.der the disc and these elements are in operative connection with each other *

The advantage of the wire insertion device according to the invention as well as the control and drive device is in particular that between the drive device and the clamping device a play-free transmission of the position .. 'Values is guaranteed by the part of disc, thereby significantly improving the pitch accuracy of previously a tolerance of 30 'at only 10' to 15% d * h, about twice, regardless of the collector slot tolerance of the collectors, is achieved *

Another advantage is that, for example, by using a known DC disc rotor motor, which is faster in response to the stepper motor, shorter position times and switching times can be achieved

It is recommended that the position values of the indexing disk are digitally preprogrammed in a microcomputer according to the collector slot pitch *.

embodiment

The invention will be explained in more detail below with reference to an embodiment ", in the accompanying drawings show:

2 ΐ1923

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1 is a side view of an inventive wire entry device and a control and drive device;

FIG. 2: a front view of the devices according to FIG. 1, FIG.

3, a top view of a detail of the wire insertion device according to FIG. 1, FIG.

4 shows a side view of the wire insertion device according to FIG. 1, FIG.

Fig. 5 ttnd. 6: side views of a collector with an inserted wire loop,

7 shows a perspective view of the collector anchor with wire loops anchored on the collector collar at the stiffening points, and FIG

Fig. 8: a diagram of the computer-controlled drive device.

In the description of the illustrated embodiment of the wire insertion device and the control and drive device and its operation, only the necessary parts for the wire loop formation is discussed, since the. Parts required for the actual winding of the armature, such as baffles, winding arms and the armature winding machine are assumed to be known and are not part of the subject matter of the present invention.

Fig. 1 shows a wire insertion device 17 and a control and drive device 1, wherein a drive motor 2 with the tachometer generator 3 and a clamping device 7 with

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a partial disk 4 are arranged on a common shaft 8. The dividing disk 4 is provided for positioning a collector anchor 10 spanned on the output end of the shaft 8. The collector anchor 10 is likewise held in a tensioning means 26, for example of a turnstile, not shown, on the opposite end of the shaft. The clamping device 7 is without transmission means such as gears, belts u "like _e via an unillustrated piston 9, a spring 5 to the drive motor 2, vorzugsweise- with a direct current disc armature motor smoment with low inertia, directly coupled so that a -spielfreie Transmission of the position values from the dividing disk 4 to the collector anchor 10 can take place. The digitally _s evaluated on the disk 4 corresponding to the collector slot pitch by means of a sensor 28, for example, optically or magnetically sensed position values are converted into electrical signals and in a microcomputer 25, the wire loading device -17 is composed of a guide piece 18 having a recess 19 s19 ⁵ and a leading edge 6 has * The WiGkeldraht 15 is caught by a lateral pivoting movement of the guided from the output I to the catch position II fishing hooks 33; 33 * a pivoting safety gear 32 j 32 ^s and in the region of a collector 11 by pushing back III of Fanghakens 33> 33 'brought to Drahtschlaufen Bildang By a radially to the collector 11 through a recess 19, 19' of the guide piece 18 displaceable Verkemmwerk-tool 24; 24 ^{ the caulking of the collector slots 12 takes place in the form of Ver¬ points 31 β the caulking 24, 24 ^! is pneumatically or hydraulically actuated by a VerStemmzylinder 30 ^ 30 * "Figure" 5 shows in a collar panel 11 ^f and Figo 6 anchored in a rolling collector 11 "die. at the Verstemmpunkt 31 wire loop 16 and Fig * 7 the finished with short wire loops 16 collector anchor 10

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with collector collar 13 ·

The reference numbers of FIG. 1 also apply to the same parts in FIGS. 2 to 8. Symmetrical parts are mentioned only once in the description.

The operation of the wire insertion device according to the invention and the Steueruags- and drive device will be described in more detail with reference to FIGS. 1 to 4 and FIG

At the end of each coil winding, the catch hook 33, 33 'is swung out of the starting position I into the catching position II, so that according to FIG. 1 and FIG. 2 the winding wire 15 is caught in the winding plane of the winding arms 14, 14'. By swinging in the catch hook 33 »33 ^! back to the initial position I and subsequent retraction III of the fishing hook 33, 33 'axially parallel to the collector 11 of the winding wire 15 passes according to Fig _e 3 and Fig. 4 in the region of the collector slots 12 and a guide edge 6 of the conically shaped guide piece 18 in the corresponding Collector slot 12, Then the collector slot 12 with the inserted winding wire 15 through the 19 * 19 radially out to the collector 11 guided caulking 24, Verstemmto By turning the winding arms 14, 14 against the winding direction of the already inserted in Kollektorschlitζ 12 winding wire 15 pulled around the Verstemmpunkt 31 around and inserted with simultaneous formation of the wire loop 16 in the same collector slot 12. The control sequence of the drive device 1 for rotating and positioning the collector armature 10 by means of the sensor 28 on the part of the disc 4; the sampled desired position values and the digital input values preselected in an input device 27, for example the number of lamellae, interconnection angle and the like. are forwarded to a microcomputer 25. The microcomputer 25 automatically calculates the correct positions from these values and by means of an engine control unit

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29, the drive motor 2 is controlled in accordance with, the tachogenerator 3 also passes the target-actual comparison to the engine control unit 29 «, By the engine control unit 29 each Positionaabweichung is balanced * whereby a high positioning and holding accuracy is achieved.

The possible embodiments are not limited to the example shown in the drawing. "Thus, the control and drive device 1 could also be used in the manufacture of anchors with hook collectors."

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Claims (4)

1 method for the operation of automatic armature winding machines, in which after the completion of the coil windings, the collector terminals of the winding wires are connected to the individual collector slots, characterized in that the following method steps are provided: a) the armature is wound in a known manner with the coil winding, b) a control and drive device with a dividing disc brings the collector respectively in the position that the individual collector slots are below a Leitstückes a wire insertion device, c) the winding wire of the respective coil winding is caught by a lateral pivoting movement of a guided from the output in the catch position fishing hook, d) the catch hook with the held winding wire is pivoted back into the starting position, - e) subsequently the fishing hook is pushed back axially parallel to the collector, at the same time the winding wire is placed over the conically shaped guide piece in the corresponding collector slot, f) the collector slit with the inserted winding wire is caulked by a guided through a recess of the guide piece caulking, and g) by reversing winding arms is over an edge - 11 - .Berlin, d.19.4.1979 55 203 27 of the guide piece of the winding wire inserted in the collector slot is pulled around the point of the block and inserted into the same collector slot with the simultaneous formation of a wire loop. « 2. Wire insertion device for carrying out the method according to item 1, characterized in that a pivotable catching device (32; 32 ^l ) with the catch hook (33; 33 ') and with respect to the collector (11) radially displaceable caulking (24,24- * ) independently operable from one another $ and that the caulking die (24; 24) in a recess ^(19;? 19 *) of the Leitstückes (18) can be inserted, and the guide piece (18) has a guide edge (6), through which the winding wire (15) in the respective collector slot (12) for forming a wire loop (16) can be inserted _e 2 11923 Erfindungsanspruoh 3 «control and drive device for carrying out the method according to point 1 _s characterized in that a drive motor (2) with a tachogenerator (3) and a tensioning device (7) with .der part plate (4) on a common shaft (8) are and are in operative connection with each other * 4. control and drive device according to item 3, characterized in that the position values of the dividing disk (4) are digitally preprogrammed in a microcomputer (25) corresponding to the collector slot graduation, Hi 4