Pole coil winding die

Abstract

The utility model relates to a pole coil winding mold, which comprises a bottom plate; the winding die heads are located at the two ends of the bottom plate and comprise a plurality of gap bridge plates, a plurality of winding arc plates and die fixing cores, the winding arc plates and the gap bridge plates are sequentially stacked in a staggered mode, the die fixing cores are used for fixing the gap bridge plates and the winding arc plates, and the length of the gap bridge plates is larger than that of the winding arc plates; the adjusting part is used for changing the distance between the pair of winding die heads; the flat copper wire is led into the winding arc plate groove through the gap bridge plate, the position of the winding arc plate is limited by the gap bridge plate, when the flat copper wire is bent in the width direction and is pulled, the situation of inclination or lateral deformation cannot occur, the bending radian and size of the flat copper wire are accurately controlled, and the winding compactness of the pole coil is improved.

Description

Technical Field

[0001] This invention relates to the field of mold technology for winding stator magnetic pole coils, and more particularly to a magnetic pole coil winding mold. Background Technology

[0002] Stator coils are wound with flat copper wire. Common stator coil winding involves bending the coil in the width direction, which reduces resistance and makes it easier to wind into a shuttle-shaped coil. However, for magnetic pole motors with high current density and more compact structure, the stator coil is designed as a small-span magnetic pole coil with a small winding end height. From a performance perspective, the magnetic pole coil needs to be bent in the height direction.

[0003] According to Chinese patent CN218416139U, a winding mold for an exciter stator pole coil is disclosed. The mold includes a winding shaft, on which a first baffle, a first mold core, a second mold core, and a second baffle are sequentially arranged. The first mold core and the second mold core can be combined to form a rectangular block-shaped total mold core. Copper wire is wound on the total mold core. However, when winding flat copper wire, the flat copper wire is bent from the direction of the required height. During bending, the wire is prone to instability and tilting, making bending difficult.

[0004] Therefore, it is necessary to develop a magnetic pole coil winding mold to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a magnetic pole coil winding mold that is easy to bend.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a magnetic pole coil winding mold, comprising:

[0007] Base plate;

[0008] The winding mold head is located at both ends of the base plate. It includes several bridge plates, several winding arc plates stacked alternately with the bridge plates, and a mold fixing core for fixing the bridge plates and the winding arc plates. The length of the bridge plates is greater than the length of the winding arc plates.

[0009] The adjustment section changes the spacing between the winding die heads.

[0010] Furthermore, the front end of the bridge plate is semi-circular, the rear end is rectangular, and the front end adopts a beveled corner design.

[0011] Furthermore, the size of the winding arc plate increases gradually from top to bottom in a circular arc pattern.

[0012] Furthermore, the number of the winding arc plates is consistent with the number of turns of the stator coil.

[0013] Furthermore, the upper and lower dimensions of the winding arc plate are consistent with the dimensions of the adjacent slots of the stator core, presenting a trapezoidal shape.

[0014] Furthermore, a clamping piece is provided above the bridge plate and the winding arc plate, and the clamping piece is laid on the uppermost surface of the bridge plate.

[0015] Furthermore, a pad is provided below the bridge plate and the winding arc plate. The pad is laid on the lower surface of the bottommost bridge plate, and the clamping piece and the pad clamp the bridge plate and the winding arc plate from above and below.

[0016] Furthermore, the mold fixing core passes through the clamping piece and the pad from the top and bottom respectively, and is fixedly connected to the bridge plate and the winding arc plate.

[0017] Furthermore, the base plate has movable fixing plates at both ends, and the winding mold head is mounted on the fixing plates.

[0018] Furthermore, the adjustment part includes a pair of support plates and a trapezoidal template disposed between the pair of support plates. The outer ends of the support plates abut against the fixing plate, and the inner ends form inclined surfaces. The two sides of the trapezoidal template abut against the sides of the pair of support plates.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model is a magnetic pole coil winding mold, which has the characteristics of easy bending. The flat copper wire is introduced into the winding arc plate groove through the bridge plate. The winding arc plate is restricted in position by the bridge plate. When the flat copper wire is bent in the width direction, it will not tilt or deform laterally during the tensile process. The bending arc and size of the flat copper wire are precisely controlled, which improves the compactness of the magnetic pole coil winding. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0021] Figure 1 This is a side sectional view of a magnetic pole coil winding mold according to the present invention.

[0022] Figure 2 for Figure 1 The side sectional view of the winding mold head of the magnetic pole coil winding mold shown;

[0023] Figure 3 for Figure 1 A top view of the magnetic pole coil winding mold shown;

[0024] Figure 4 for Figure 2 A schematic diagram of the winding die head of the magnetic pole coil winding die from another angle;

[0025] Figure 5 for Figure 2 A schematic diagram of the bridge plate of the winding mold head of the magnetic pole coil winding mold shown.

[0026] In the diagram: 1. Base plate; 2. Winding mold head; 3. Adjustment part; 11. Fixing plate; 12. Pressure plate; 13. Limiting component; 21. Bridge plate; 22. Winding arc plate; 23. Clamping piece; 24. Pad block; 25. Mold fixing core; 31. Support plate; 32. Trapezoidal template. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please refer to Figures 1 to 5 This utility model is a magnetic pole coil winding mold, which includes a base plate 1, winding mold heads 2 installed at both ends of the base plate 1, and an adjustment part 3 disposed between the pair of winding mold heads 2.

[0029] Please refer to Figures 1 to 3 The base plate 1 is horizontal and is made of Q235 steel plate. The base plate 1 is used to support the winding die head 2 and the adjustment part 3, so that the winding die head 2 and the adjustment part 3 are in a horizontal state. The base plate 1 is provided with several through holes (not shown) for installation with the winding machine spindle device.

[0030] Please refer to Figures 1 to 2 The base plate 1 has fixing plates 11 on both ends. The fixing plates 11 are parallel to the base plate 1 and are in a horizontal state. The lower surface of the base plate 1 is in contact with the upper surface of the base plate 1. The outer side of the fixing plates 11 has pressure plates 12. The pressure plates 12 are L-shaped. One part of the pressure plates 12 is located above the fixing plates 11, and the other part abuts against the upper surface of the base plate 1 along the side of the fixing plates 11. The base plate 1 and the pressure plates 12 are fixedly connected by bolts or screws. Specifically, the number of pressure plates 12 can be changed according to the requirements. In this embodiment, there are four pressure plates 12, which are located on both sides of the fixing plates 11.

[0031] The outer end of the fixed plate 11 is provided with a limiting member 13, which is made of ZL102 cast aluminum block. One end of the limiting member 13 is fixedly connected to the base plate 1, and the other end extends into the base plate 1, corresponding to the side of the fixed plate 11.

[0032] Please refer to Figures 1 to 5 The winding mold head 2 includes a bridge plate 21 and a winding arc plate 22 stacked on the fixed plate 11. The bridge plate 21 is made of Q235 steel plate, with a semi-circular front end and a rectangular rear end. The front end of the bridge plate 21 adopts a chamfered guide design to avoid scratching the flat copper wire. The winding arc plate 22 is made of Q235 steel sheet, and its thickness is consistent with the height of the flat copper wire. The lower surface of the winding arc plate 22 is attached to the upper surface of the bridge plate 21. The number of bridge plates 21 and winding arc plates 22 can be changed according to requirements. The bridge plates 21 and winding arc plates 22 are stacked sequentially. At the same time, according to the size characteristics of the magnetic pole coil, the size of the winding arc plate 22 increases gradually from top to bottom. The number of winding arc plates 22 is consistent with the number of turns of the stator coil and can be increased or decreased according to size requirements.

[0033] The length of the bridge plate 21 is greater than the length of the winding arc plate 22.

[0034] The upper and lower dimensions of the winding arc plate 22 are consistent with the dimensions of the adjacent slots of the stator core, presenting a trapezoidal shape.

[0035] Please refer to Figures 2 to 4 Above the bridge plate 21 and the winding arc plate 22, there are clamping pieces 23. The number of clamping pieces 23 can be changed according to the requirements. They are laid on the upper surface of the uppermost bridge plate 21. Below the bridge plate 21 and the winding arc plate 22, there are pads 24. The pads 24 are laid on the lower surface of the lowermost bridge plate 21. The clamping pieces 23 and the pads 24 clamp the bridge plate 21 and the winding arc plate 22 from above and below. The winding mold head 2 is also provided with a mold fixing core 25. The mold fixing core 25 passes through the clamping pieces 23, the pads 24 and the fixing plate 11 from above and below, and is fixedly connected to the bridge plate 21 and the winding arc plate 22, so that the winding mold head 2 is fixed on the fixing plate 11.

[0036] The adjustment part 3 includes a pair of support plates 31 and a trapezoidal template 32 disposed between the pair of support plates 31. The pair of support plates 31 are respectively located inside a pair of winding mold heads 2. The support plates 31 are perpendicular to the base plate 1, and their outer ends abut against the fixing plate 11. They are fixedly connected to the fixing plate 11 by bolts or screws. The inner ends of the support plates 31 form inclined surfaces. The trapezoidal template 32 extends between the pair of support plates 31, and its two sides abut against the sides of the pair of support plates 31. As the trapezoidal template 32 extends in, it squeezes the pair of support plates 31 to move outward.

[0037] When using the magnetic pole coil winding mold of this utility model, the base plate 1 is installed in conjunction with the main shaft device of the winding machine. Flat copper wire is wrapped around a pair of winding mold heads 2. Due to the beveled guide design at the end of the bridge plate 21, the flat copper wire is avoided from being scratched. At the same time, the flat copper wire is introduced into the groove of the winding arc plate 22. The winding arc plate 22 is restricted in position by the bridge plate 21. As the main shaft device of the winding machine drives the base plate 1 to move continuously, the flat copper wire is wrapped around the winding arc plate 22 in sequence. When all the winding arc plates 22 are wrapped by the flat copper wire, the trapezoidal template 32 is moved, the pair of support plates 31 lose support, the distance between the pair of winding mold heads 2 becomes shorter, and the flat copper wire is removed from the winding mold head 2, realizing demolding.

[0038] This utility model is a magnetic pole coil winding mold, which is easy to bend. The flat copper wire is introduced into the winding arc plate groove through the bridge plate. The winding arc plate is restricted in position by the bridge plate. When the flat copper wire is bent in the width direction, it will not tilt or deform laterally during the tensile process. The bending arc and size of the flat copper wire are precisely controlled, which improves the compactness of the magnetic pole coil winding.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A magnetic pole coil winding mold, characterized in that, It includes: Base plate (1); The winding mold head (2) is located at both ends of the base plate (1). It includes several bridge plates (21), several winding arc plates (22) stacked alternately with the bridge plates (21), and a mold fixing core (25) for fixing the bridge plates (21) and the winding arc plates (22). The length of the bridge plates (21) is greater than the length of the winding arc plates (22). Adjustment part (3) changes the spacing between the winding die heads (2).

2. The magnetic pole coil winding mold according to claim 1, characterized in that, The front end of the bridge plate (21) is semi-circular, the rear end is rectangular, and the front end adopts a beveled corner design.

3. The magnetic pole coil winding mold according to claim 1, characterized in that, The size of the winding arc plate (22) increases gradually from top to bottom in a circular arc pattern.

4. The magnetic pole coil winding mold according to claim 1, characterized in that, The number of the winding arc plates (22) is consistent with the number of turns of the stator coil.

5. The magnetic pole coil winding mold according to claim 1, characterized in that, The upper and lower dimensions of the winding arc plate (22) are consistent with the dimensions of the adjacent slots of the stator core, presenting a trapezoidal shape.

6. The magnetic pole coil winding mold according to claim 1, characterized in that, A clip (23) is provided above the bridge plate (21) and the winding arc plate (22), and the clip (23) is laid on the upper surface of the uppermost bridge plate (21).

7. The magnetic pole coil winding mold according to claim 6, characterized in that, A pad (24) is provided below the bridge plate (21) and the winding arc plate (22). The pad (24) is laid on the lower surface of the bridge plate (21) at the bottom. The clamping piece (23) and the pad (24) clamp the bridge plate (21) and the winding arc plate (22) from above and below.

8. The magnetic pole coil winding mold according to claim 7, characterized in that, The mold fixing core (25) passes through the clamping piece (23) and the pad (24) from above and below, respectively, and is fixedly connected to the bridge plate (21) and the winding arc plate (22).

9. The magnetic pole coil winding mold according to claim 1, characterized in that, The base plate (1) has movable fixing plates (11) at both ends, and the winding mold head (2) is mounted on the fixing plate (11).

10. The magnetic pole coil winding mold according to claim 9, characterized in that, The adjustment part (3) includes a pair of support plates (31) and a trapezoidal template (32) disposed between the pair of support plates (31). The outer end of the support plate (31) abuts against the fixing plate (11), and the inner end forms an inclined surface. The two sides of the trapezoidal template (32) abut against the sides of the pair of support plates (31).

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