CN1018411B - Embedding-winding method and equipment for directly-wound hollow cup-type armature - Google Patents

Abstract

The present invention relates to an embedding winding method and a device for a directly-wound hollow cup-type armature. The present invention adopts characteristic technologies, such as constant slope winding, a tap with an extended wire of a winding coil, forced wire arrangement, external compaction of the winding coil, etc. The number of winding coils of a hollow cup-type armature is enhanced. The winding density approaches to a theoretical calculated value. The single-layer hollow cup-type armature or the multiple-layer hollow cup-type armature can be wound. The adaptation range for the size of the armature and the diameter of a winding wire is wide. A connector lug can be drawn. The automation for the whole process of tap winding is realized.

Description

Embedding-winding method and equipment for directly-wound hollow cup-type armature

The invention relates to directly-wound coiling armature embedding winding method and device, be used for coiling armature and other similar articles of embedding around no DC servo-motor unshakable in one's determination.

Directly-wound coiling armature embedding winding method and device, external existing some patents are the United States Patent (USP) " the embedding winding method and the device of coiling armature winding " etc. of the patent No. 4235656 of the Japan Patent " the garden cylinder armature embedding winding method and the device thereof of small-sized DC motor " of clear 53-109107 and announcement in 1980 as: the patent No. of announcing in 1978.(hereinafter to be referred as the former is Japan Patent, and the latter is a United States Patent (USP)).

Earlier introduce Japan Patent in conjunction with Fig. 5.Garden post forming surface 2 tilts to be installed on the support 1 among the figure.Coiling sheet 11 is installed in post forming surface both sides, garden respectively, and is mutually 180 ° at its garden Zhou Fangxiang, and at a distance of a coiling armature length, an end and the garden post forming surface of coiling sheet are tangent at its axis direction, and the other end is fixed in frame.Also have plastics strip 4 with the coiling sheet is installed at same place, strip one end is clamped in 3 li of the grooves of garden post forming surface, and the other end applies and suitably pulls resistance.Twine 6 and be with wrap wire 8 to press the rotation of arrow 9 direction indications by roller 7, wrap wire is the winding circle of a sealing of formation between 2 liang of coilings of forming surface sheet 11 just.Just at this in a flash, forming surface 2 is being with plastics strip 4 to turn over 1/N circle (N is every layer of winding number of turns of coiling armature) by arrow 10 direction indications.After twining head rotation N circle, just form the coiling armature of single layer winding, continue again embedding around, can form the coiling armature of multilayer winding.

The shortcoming of this method is: one, can embedding around the number of windings and the percentage of the theoretical number of windings be that so-called winding density is low.Two, the plastics strip is rolled in the winding, and coiling armature end wall thickness is strengthened.Reason is:

One, Japan Patent, wrap wire are to do the plane rotation.Yun Dong wrap wire is around formed winding circle to the cylinder of garden like this, and its expansion shape as shown in Figure 7.At this moment every layer of coiling armature number of windings W should be calculated as follows.

$\mathrm{W=}\frac{\mathrm{180°}}{\mathrm{arc\; Sin}\frac{d}{\mathrm{(D+d)cosarctg}\frac{\mathrm{D+d}}{L\sqrt{\mathrm{1-(1-}\frac{\mathrm{2x}}{L}{)}^2}}}}$

In the formula: D and L are respectively the internal diameter and the length of coiling armature, and d is the external diameter of wrap wire, and X calculates the distance of cross section to the coiling armature end.

By formula as can be known, even under all identical situation of D, L, d, if the different W of X are also different.That is to say coiling armature can embedding on different cross sections around winding number of turns difference.Laminate phenomenon for adjacent winding circle is not produced in winding, can only choose the winding number of turns that suitable X value is determined coiling armature.So its winding density can not be very high.

Two, the plastics strip 4 of Japan Patent is to have adopted to extend back rack-mounted with coiling sheet 11 identical directions.This winding circle 12 that plastics strip 4 is constantly formed is rolled in the inside (referring to Fig. 6).When the coiling armature embedding around intact, in the time of removing the plastics strip, or melt, or take out by Fig. 6 arrow 14 direction indications with solvent, this all is very difficult.Particularly can't accomplish the coiling armature of multilayer at all.

Introduce the characteristics of United States Patent (USP) again in conjunction with Fig. 8 and 9.

One, cancelled the plastics strip.The coiling sheet done become to resemble among Fig. 8 and Fig. 9 105 and 106 garden arc, and, the wire winding pole of installing in the winding of rotating along the arrow B direction indication 101 twines when forming a winding circle 104 whenever driving wrap wire 107, it rotates the 1/N circle together with garden post forming surface 103, after winding circle to be formed reaches predetermined number, these winding circles are sticked together by external heat.Then, handwheel 102 rotates by the arrow A indicated direction, coiling sheet 105 and 106 correcting actions, continues to twine again.And so circulation.

Two, adopted mechanical tap.Method is constantly hook 141 to be moved to the appropriate location in regulation, and the wrap wire of rotation hangs on the hook, and the hook rotation is cut with scissors wrap wire and is twisted into the plait shape, puts into breach 108 then, and it is such to slough in the hook image pattern 107a.

Having cancelled the plastics strip, adopted mechanical tap, obviously is the advantage of United States Patent (USP).But the problem of bringing also clearly.Such as; Wrap wire 107 will could arrive the shaping position of winding circle 104 through very little slit between coiling sheet 105 or 106 garden cambered surface and the garden post forming surface 103.And for example: hinge when turning round tap and hinge turn round the back when hook is taken off tap, how to make the invariant positionization of winding circle.Through practice, above-mentioned 2 all are difficult to accomplish.Moreover the wrap wire of United States Patent (USP) is still the plane rotation, so winding density is equally very low.

The objective of the invention is to overcome existing directly-wound coiling armature in embedding the problems referred to above around central existence, the winding of slopes such as employing, the tap of winding circle extended line, force winding displacement and winding circle wrap up in feature technology such as pressure outward and form a kind of have high twine do not have the plastics strip in density, the winding circle, directly-wound coiling armature embedding winding method and the device produced in batches worked continuously, is fit in realization automatically easily.

Below in conjunction with Fig. 1 to Fig. 4 the present invention is illustrated in down:

Wrap wire 204 shown in Figure 1 when the garden post forming surface rotation of containing between coiling sheet 207a and 207b and it two in the space, no longer is along plane motion, but along specific non-plane motion.This curved surface is formed by two kinds of running orbits.A kind of being defined as: wait slope winding running track ", another kind is defined as " winding circle extended line tap running orbit ".

Wrap wire 204 is by preceding a kind of, and when promptly waiting operation of slope running orbit, wrap wire 204(refers to from pilot hole 205, arrives the section lead till the winding circle moulding point.) remained on the tangent position of winding circle of this moulding point.Obviously, the wrap wire of such operation is wrapped in the winding circle that forms on the cylinder of garden, and the shape after the expansion resembles as shown in Figure 2, and winding circle slope β everywhere is consistent.At this moment, every layer of coiling armature number of windings W _o, just can determine by following formula.

$W_o=\frac{\mathrm{180°}}{\mathrm{arc\; Sin}\frac{d}{\mathrm{(D+d)Sin\; arcctg}\frac{\mathrm{2L}}{\mathrm{\pi (D+d)}}}}$

In the formula: D, L and d are respectively internal diameter, length and the wrap wire external diameter of coiling armature equally.At this moment, can embedding on each cross section of coiling armature around the winding number of turns all equate and numerical value maximum.So when adopting method of the present invention to twine coiling armature, it is very high to twine density, facts have proved, can near in addition reach calculated value.

Wrap wire 204 is a kind of by the back, i.e. during the operation of winding circle extended line tap running orbit, wrap wire 204 two mushroom pin 206a, 206b and the winding circle adjacent with them turn back a little between, the tap of formation resemble Fig. 3.The position of two mushroom pins is to calculate well, guarantees that the two line segment 204c that extract out and 204d constitute two winding 204a of winding circle and the extended line of 204b.

The implementation method of above-mentioned two kinds of running orbits is the technical characterictics according to separately, through digital operation, calculates with one group of data representation, reflects the space curve of line outlet air coordinates position.Then,, this is organized umerical space curve, become the entity motion of pilot hole 205 by computer and computer-controlled actuator.

In Figure 1A-A and the B-B tangent plane, coiling sheet 207a and 207b, its shape is as duck, and main body is an incomplete garden dish, smoothly on the cylinder of outer garden stretches out an arc thin slice, by the mount type hole in the middle of the main body, is separately fixed at two groups and connects on the frames.On the outer garden cylinder of two coiling sheets, be separately installed with and push away line sheet 212a and 212b, they are separately fixed at again on two groups of transmission frames, and by these two groups of transmission frames, making them again is axis with the type centerline hole of two coiling sheets respectively, with respect to the coiling sheet, intermittently swing in the certain angle scope.Thereby, the continuous winding circle on the coiling sheet, release its shaping position immediately, guaranteed on the one hand continuous embedding around the winding circle always a fixed position moulding, simultaneously in type winding circle closely is close together.So this explanation is named as this process " pressure winding displacement ".

In Figure 1A-A and the B-B tangent plane, twining in flute profile wheel 252a and the 252b has expired the plastics strip.From interior plastics strip 242a and the 242b that extracts out of flute profile wheel, pass through from the slit between sheave box 241a, 241b and regulator board 240a, the 240b respectively, pass through roller multiple conversions direction again respectively, be fixed at last in the narrow slit of carrying ring 208a and 209b secretly.Like this, for the coiling sheet of same end, whole piece plastics strip is placed in the same side of garden post forming surface, be that whole piece plastics strip is when waiting slope to twine, be placed in this side of wrap wire operation curved surface, perhaps that side is not entangled in the winding circle plastics strip.And when carrying ring secretly and rotate, the plastics strip is being pulled, constantly declining to the winding circle of carrying secretly on the ring from the coiling sheet, as Fig. 4, outside the winding circle, wrap up in be pressed in carry secretly encircle outside on the garden.Even the multilayer winding also can promptly from the coiling armature end, be taken out strip from arrow 242E indicated direction like this.This explanation is defined as the method " the winding circle is wrapped up in pressure outward ".

The Embodiment B KR-4 type numerical control all the people present who manufactures and designs according to method of the present invention marks automatic embedding around machine, through facts have proved, because slopes such as employing twine, the tap of winding circle extended line, pressure winding displacement and winding circle are wrapped up in feature technologies such as pressure outward, and the embedding of directly-wound coiling armature is had made marked progress around technology.Show:

One, improved winding density significantly than Japan Patent and United States Patent (USP).This means and can improve the winding number of turns significantly for the coiling armature of same size same wire.For the dirty motor of drag cup, meaning under the identical situation of other conditions can bigger raising output torque, can adopt the low performance permanent magnetic material of cheapness under the situation that keeps identical output torque.

Two, in the coiling armature winding, no longer include the plastics strip and exist, reduced the wall thickness at coiling armature two ends, improved the dimensional accuracy and the form accuracy of coiling armature.

Three, be convenient to realize the automation embedding around.Such as in an embodiment, realized " winding-tap " overall process automatic job.And designed double, non-cutting time and winding time are overlapped.Can also design a plurality of embedding winding apparatus on each station, embedding simultaneously is around some coiling armatures.So it can realize very high production efficiency.

The present invention is described in detail in conjunction with present embodiment according to Fig. 1 below:

Twining head is made up of winding bar 210, guide post 203 and roller 202.The pilot hole 205 of slightly larger in diameter in the wrap wire external diameter arranged on the guide post, and guide post is adjustable the connection with winding bar, and roller just is contained in their junction.

Garden post forming surface by sleeve 211, carry ring 209a and 209b, core retainer plate 210 and hanging wire key seat 208 etc. secretly and form.They are contained on the bevel hollow shaft 218 together.One end (or two ends) of these assemblies has the garden conical surface to adorning mutually, and carrying secretly for two respectively has a narrow slit of radially opening on the ring, and when these assemblies of axial compression, two narrow slits just close up.The garden of hanging wire key seat evenly is installed with a mushroom pin 206 on week, the quantity and the position of a mushroom pin are determined by the tap number of the size of coiling armature.The external diameter of above assembly equates with the internal diameter of coiling armature.

Two duck shapes coiling sheet 207a and 207b are fixed on two groups respectively and connect on the frames.They lay respectively at two sides of carrying ring secretly, are mutually 180 ° along carrying ring garden Zhou Fangxiang secretly, along carrying the ring axis direction secretly at a distance of a coiling armature length.

Two garden arcs push away line sheet 212a and 212b, are fixed on respectively on two groups of transmission frames.They are contained in respectively on two the outer garden of coiling sheet cylinders.Under the effect of transmission frame, when garden post forming surface is rotated, push away the line sheet sheet that winds the line relatively, move a certain distance to the exit axis of the winding circle on the coiling sheet, and after arriving assigned position, return immediately.

Connect frame and be used for fixing coiling sheet 207a and 207b, two groups of independently frames are arranged.These two groups of frames, form one group by little axle 214a, Γ shape plate 215a, lifter plate 221a, elastic collar 222a, adjustable plate 220c, fixed lever 224, locking plate 237b, fixed head 229 respectively, form another group by little axle 214b, Γ shape plate 215b, lifter plate 221b, elastic collar 222b, adjustable plate 220d, connecting rod 236, contiguous block 233, wing nut 231, pull bar 232.

The transmission frame is the motion of dragging system to be passed to two push away line sheet 212a and 212b, finishes by two groups of frames respectively.These two groups of frames, form one group by interior bar 213a, Γ shape plate 215a, lever 217a, outer bar 219a, adjustable plate 220a, drive link 225a, locking plate 237a, driver plate 226 respectively, form other one group by interior bar 213b, Γ shape plate 215b, lever 217b, outer bar 219b, adjustable plate 220b, drive link 225b, drive block 235, hollow sleeve 234.

Wrap up in the press frame respectively by flute profile wheel 252a, 252b for two groups, sheave box 241a, 241b, regulator board 240a, 240b, parts such as adjustment screw 253a, 253b and some rollers, pole are formed.They are separately fixed on two groups of connection frames, for the coiling sheet of same end, wrap up in the press frame and are placed in the same side of carrying ring secretly.Pull out the plastics strip from the flute profile wheel, pass the slit between sheave box and the regulator board,, be fixed at last in the narrow slit of carrying secretly on the ring again through the roller conversion direction.Can align the resistance that pulls of plastics strip with adjustment screw.

The control dragging system (not drawing among the figure) of device is one and marks two linkages control, stepper motor driven control dragging system by the numerical control all the people present.Wherein two interlock coordinates are a rectilinear motion and the synthetic a kind of motion that rotatablely moves, and are used for driving the winding head.Two other coordinate, one is used for driving garden post forming surface entity, and one is used for driving two and pushes away the line sheet.

Embedding is when coiling armature, and the lead 200 coming from bobbin (not drawing the figure) through roller 202, passes from pilot hole 205, is fixed on a certain mushroom pin 206.Twine head by waiting rotation of slope running orbit, when one-period finished, wrap wire 204 was just at core retainer plate 210 with carry on the outer garden of ring 209a, 209b the such winding circle of formation Fig. 2 between coiling sheet 207a and 207b secretly.Just at this in a flash, bevel hollow shaft 218 is with being installed in the winding circle rotation 1/N circle that forms on part above it and the part.(N is the number of turns that the drag cup electricity drives every layer of winding) synchronization pushes away the line sheet sheet that winds the line relatively, is pushing away the winding circle on the sheet that winds the line, and to the exit axis of winding circle, moves a distance that equates with the wrap wire external diameter, and reposition immediately.M back of circulation like this (M is the winding number of turns between coiling armature two taps), twine head by " winding circle extended line tap running orbit " operation one-period, two mushroom pin 206a, 206b and with them adjacent winding circle turn back a little between, the tap of formation resemble Fig. 3.Then, twine head and recover again by " waiting the slope running orbit " operation, the circulation that beginning is next such, and so repeat (Q is the coiling armature tap number) Q time.Walk around in the journey in above-mentioned embedding, plastics strip 242a and 242b carried secretly all the time the ring 209a, 209b pulling, as Fig. 4, outside the winding circle, the winding circle wrap up in be pressed in carry secretly the ring outer garden on.After treating that coiling armature solidifies, can promptly from the coiling armature end, the plastics strip be taken out from arrow 242E direction indication.

Description of drawings

Fig. 1 is the directly-wound coiling armature embedding winding apparatus assembly drawing that the present invention proposes.Figure 1A is the AA profile of Fig. 1.Figure 1B is the BB profile of Fig. 1.

Among the figure: 200-lead, 201-winding bar, 202-roller, the 203-guide post, 204-wrap wire, 205-pilot hole, a 206-pin of pestering, 207a, the 207b-sheet that winds the line, 208-hanging wire key seat, 209a-209b-carries ring secretly, 210-core retainer plate, 211-sleeve, 212a, 212b-pushes away line sheet, 213a, bar in the 213b-, 214a, the little axle of 214b-, 215a, 215b-Γ shape plate, 218-bevel hollow shaft, 220a～220d-adjustable plate, 221a, the 221b-lifter plate, 222a, 222b-elasticity entrainment, the 224-fixed lever, 225a, the 225b-drive link, 226-driver plate, 229-fixed head, bar in the 231-wing nut, 231b-, the 232-extension bar, the 233-contiguous block, 234-hollow sleeve, 235-drive block, the 236-connecting rod, 237a, the 237b-locking plate, 240a, the 240b-regulator board, 241a, 241b-sheave box, 242a, 242b-plastics strip, 243a～246a, 246b～246b-roller, 250a, 250b-pole, 252a, 252b-flute profile wheel, 253a, the 253b-adjustment screw.

Fig. 2 is the coiling armature expanded view of twining on the device that the present invention proposes.Among the figure: d-wrap wire external diameter, D-coiling armature diameter, L-coiling armature length, E-coiling armature wall thickness.

Fig. 3 is the tap pattern stereogram that the present invention adopts.Among the figure: 204a, 204b-form two windings of winding circle, two line segments that 204c, 204d-tap are extracted out, 206a, a 206b-pin of pestering.The 207a-sheet that winds the line.

Fig. 4 be the present invention adopt wrap up in pressure type sample stereogram.Among the figure: 204a, 204b-winding circle, 210-garden post forming surface, 242b-plastics strip, 242E-plastics strip removing direction.

Fig. 5 is the directly-wound coiling armature embedding winding apparatus front view that Japan Patent proposes.Among the figure: the 1-support, 2-garden post forming surface, the 3-groove, 4-plastics strip, 6-twines head, 7-roller, 8-wrap wire, 9, the 10-arrow, the 11-sheet that winds the line.

Fig. 6 be Japan Patent adopt wrap up in pressure type sample stereogram.Figure: 2-garden post forming surface, 4-plastics strip, 12-winding circle, 14-plastics strip removing direction.

Fig. 7 is the coiling armature expanded view of twining on the embedding winding apparatus that Japan Patent proposes.Among the figure: d-wrap wire external diameter, D-coiling armature diameter, L-coiling armature length, on the P-winding circle more arbitrarily.

Fig. 8 is the directly-wound coiling armature embedding winding apparatus stereogram that United States Patent (USP) proposes.Among the figure: 101-twines head, 102-handwheel, 103-garden post forming surface, 104-winding circle, 105, the 106-sheet that winds the line, 107-wrap wire, A, B-arrow.

Fig. 9 is the tap style stereogram that United States Patent (USP) adopts.Among the figure: the 105-sheet that winds the line, 107a-tap, 108-breach, 109-baffle plate, 141-hook.

Claims (2)

1, a kind of directly-wound coiling armature embedding winding method:

(1) a. is fixed on wrap wire top on the cylinder forming surface entity, wrap wire axis of rotation and cylinder forming surface axis of rotation coplane and be mutually certain angle,

B. two coiling sheets are mutually 180 °, and be installed in cylinder forming surface both sides respectively, and keep certain distance at the forming surface axis direction,

C. two plastics strip tops are fixed on the cylinder forming surface entity, and apply at the other end and suitably to pull resistance;

(2) wrap wire contains cylinder forming surface rotation in the spaces around two coiling sheets and two coiling sheets, and remains at above the tangent position of winding circle of this moulding point slope winding running track such as formation, moves after M cycle;

(3) wrap wire according to two mushroom pins and the winding circle adjacent with them turn back a little between carry out tap on the winding extended line that constituted running orbit move a same period, tap is hung over described in (1) b two coiling sheets contain on the cross section, the face of cylinder outer, that cylinder forming surface described in (1) a extends out, space, along circumference evenly setting and and the mushroom pin that together rotates of cylinder forming surface on, and by (2) and (3) described circulation Q time (M is the winding number of turns between coiling armature two taps, and Q is the tap number of coiling armature);

(4) on two described in (1) b coiling sheets, also be equipped with and push away the line sheet, when cylinder forming surface described in (1) a is rotated, push away the line sheet sheet that winds the line relatively, move a certain distance to the exit axis that is entangled in the winding circle on the coiling sheet, carry out winding displacement, and behind the in-position, return immediately;

(5) at two plastics strips described in (1) c, change direction with one group of roller separately respectively, when waiting slope to twine, make whole piece plastics strip be mounted this side of wrap wire operation curved surface, perhaps be installed in opposite side,

The plastics strip is being pulled by the cylinder forming surface described in (1) a, from decline winding circle on the cylinder forming surface of the sheet that winds the line, from " wrapping outside the winding circle ", takes out strip at last constantly.

2, adopt a kind of directly-wound coiling armature embedding winding apparatus of the described method of claim 1, comprising:

(A) form by winding bar and roller for one, in order to drag and to control the winding head of wrap wire motion;

(B) one can be rotated, and diameter equals the coiling armature internal diameter, its axis and twine the cylinder forming surface entity that an axis coplane forms an angle again;

(C) two one ends are fixed, and the other end and cylinder forming surface are tangent, and apart 180 ° of circumferencial directions, axis direction is at a distance of the coiling sheet of a coiling armature length;

(D) two one ends are clipped on the cylinder forming surface, and the other end stretches out along the vertical direction of forming surface axis, and give and the plastics strip that suitably pulls resistance;

It is characterized in that:

(E) form by winding bar, guide post and roller at the winding head described in (A), guide post is adjustable the connection with winding bar, roller is installed in their junction, the pilot hole in order to the motion of drive wrap wire that is slightly larger than the wrap wire external diameter is arranged on the guide post, the motion of space curve of pilot hole is the dragging system by stepping motor, and one is rotatablely moved and straight-line resultant motion passes to and twines head and realize;

(F) the cylinder forming surface entity described in (B) by sleeve, carry ring, core retainer plate and hanging wire key seat secretly and form, these assemblies together are installed on the bevel hollow shaft, or at one end, or taper seat to dress arranged at two ends mutually, carry ring secretly and go up narrow slit of radially opening in addition, also be equipped with on the hanging wire key seat circumference and the corresponding mushroom of a coiling armature number of taps pin;

(G) main body at two described in (C) coiling sheets is an incomplete disk, smoothly on the external cylindrical surface stretches out an arc thin slice, and they are separately fixed on two groups of connection frames with the mount type hole of main center;

On the external cylindrical surface of coiling sheet, a circular arc also is installed pushes away the line sheet, two push away the line sheet and are separately fixed on two groups of transmission frames, and by the transmission frame, making them is axis with the type centerline hole of coiling sheet, and the sheet that winds the line is relatively done intermittently swing in certain angle;

(H) in two plastics strips described in (D) are twisted in two flute profile wheels respectively, the coiling sheet of same relatively end, the flute profile wheel is installed at cylinder forming surface homonymy, from the flute profile wheel, pull out the plastics strip, by regulating big or small, the slit of two plate object formation is passed through, and again through some roller conversion directions, is fixed at last on the cylinder forming surface entity.

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