Press fitting die for flexible curing line of self-bonding iron core of axial flux motor

Abstract

The utility model provides an axial magnetic flux motor self-bonding iron core flexible curing line press-fitting die, which belongs to the field of press-fitting dies, and comprises a bottom plate, a support mechanism, an axial magnetic flux winding iron core, an inner tensioning disc, an inner support mechanism, an outer tensioning disc and a pressing mechanism. The outer diameter of the inner tensioning disc can be adjusted through vertical movement of the conical disc, the outer diameter of the outer tensioning disc can be adjusted, the outer tensioning disc is also divided into three equal parts of a whole circle, attached to a positioning plate and capable of freely sliding, and three receding grooves are formed in the side face edge, so that three positioning groove rods can completely penetrate through an axial magnetic flux winding iron core, and the axial magnetic flux winding iron core can be completely wound. By moving the sliding block back and forth, the outer diameter of the iron core can make contact more tightly, the pasting density is higher, and the problem that in the prior art, an iron core press-fitting mold can only press-fit one side of the iron core, and the speed is low during iron core curing press-fitting can be solved.

Description

Technical Field

[0001] The utility model belongs to the field of press-fitting dies, and particularly relates to a press-fitting die for an axially-flux motor self-bonding iron core flexible curing line. Background Art

[0002] An electric motor is an electromagnetic device that realizes the conversion or transmission of electrical energy based on the law of electromagnetic induction. It is divided into a motor and a generator.

[0003] The stator core of an electric motor is an important part of the magnetic circuit of the motor. Together with the rotor core and the air gap between the stator and the rotor, it forms a complete magnetic circuit of the motor. In an asynchronous motor, the magnetic flux in the stator core is alternating, thus generating core losses. Core losses include two parts: hysteresis loss and eddy current loss.

[0004] When the iron core press-fitting die in the prior art performs press-fitting and curing, it can only press-fit one side of the iron core, resulting in a low rate of iron core curing and press-fitting, which is not conducive to improving the rate of iron core curing and press-fitting. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a press-fitting die for an axially-flux motor self-bonding iron core flexible curing line, aiming to solve the problem that the iron core press-fitting die in the prior art can only press-fit one side of the iron core, resulting in a low rate of iron core curing and press-fitting.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A press-fitting die for an axially-flux motor self-bonding iron core flexible curing line, comprising:

[0008] A bottom plate;

[0009] A support mechanism, arranged on the top of the bottom plate;

[0010] An axially-flux wound iron core, arranged on the support mechanism;

[0011] An inner tensioning disk, arranged on the top of the bottom plate;

[0012] An inner support mechanism, arranged on the bottom plate, and the inner support mechanism is used to expand the inner tensioning disk;

[0013] An outer tensioning disk, arranged on the support mechanism; and

[0014] A pressing mechanism, arranged on the support mechanism.

[0015] As a preferred embodiment of the present utility model, the support mechanism includes a positioning plate, a positioning groove rod, and a positioning pin A. There are six positioning pins A, and all six positioning pins A are movably inserted into the bottom of the bottom plate, and all six positioning pins A movably penetrate through the bottom plate and extend to the upper side of the bottom plate. The positioning plate is movably sleeved on the six positioning pins A. There are three positioning groove rods, and all three positioning groove rods are movably clamped on the top of the positioning plate, and the three positioning groove rods are evenly distributed.

[0016] As a preferred embodiment of the present utility model, the inner support mechanism includes a central positioning member, a tapered disc, a curing wire press head, and a positioning pin B. There are two positioning pins B, and both two positioning pins B are movably inserted into the top of the bottom plate, and the two positioning pins B are symmetrically arranged. The central positioning member is movably sleeved on the two positioning pins B, and the central positioning member is detachably connected to the top of the bottom plate. The tapered disc is movably sleeved on the circumferential surface of the central positioning member, and the tapered disc is located between the central positioning member and the inner tensioning disc. The curing wire press head is arranged on the top of the tapered disc.

[0017] As a preferred embodiment of the present utility model, the pressing mechanism includes a moving slider and a curing wire cylinder connecting rod. There are three curing wire cylinder connecting rods, and all three moving sliders are arranged on the surface of the outer tensioning disc, and the three moving sliders are evenly distributed. All three moving sliders are arranged on the top of the positioning plate. There are three curing wire cylinder connecting rods, and each curing wire cylinder connecting rod is fixedly connected to the side end of each moving slider.

[0018] As a preferred embodiment of the present utility model, two lifting rings are threadedly connected to the top of the positioning plate, and the two lifting rings are symmetrically arranged.

[0019] As a preferred embodiment of the present utility model, the central positioning member is detachably connected to the top of the bottom plate through two screws B.

[0020] As a preferred embodiment of the present utility model, the positioning plate is detachably connected to the top of the bottom plate through six screws A.

[0021] Compared with the prior art, the beneficial effects of the present utility model are:

[0022] 1. In this solution, the inner tightening disk plane is fully attached to the positioning plate. The inner wall of the inner tightening disk has a taper that matches more than 80% of the conical surface of the conical disk. The outer diameter of the lower end face of the step of the inner tightening disk is slightly smaller than the inner hole of the positioning plate, with a bilateral gap of 4.0 mm from the inner hole of the positioning plate. The height of the step needs to be 1.0 mm higher than the positioning plate to prevent interference from the aperture of the positioning plate during tightening. After the inner tightening disk is processed, it needs to be divided into three equal parts to achieve a large-area expansion function. There are three relief grooves on the side, allowing the three positioning slot bars to completely penetrate the axial flux wound core.

[0023] 2. In this solution, the outer tightening disk is also a whole circle divided into three equal parts, attached to the positioning plate and able to slide freely. The inner hole of the outer tightening disk has the same size as the outer diameter of the core. There are three relief grooves on the side, allowing the three positioning slot bars to completely penetrate the axial flux wound core. By moving the slider back and forth, the outer diameter of the core can be brought into closer contact, with a higher pasting density.

[0024] 3. In this solution, six positioning pins A can accurately transfer the reference at the center of the bottom plate to the positioning plate. The inner diameter of the positioning plate needs to be approximately 6.0 - 8.0 mm less than the inner hole of the axial flux wound core in bilateral dimensions, so that the entire plane of the core can be attached to the positioning plate. When the core is under pressure, the edges will not turn up and down. There are three positioning grooves on its surface, facilitating the sliding, initial positioning, and movement state of the positioning slot bars on the positioning plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings are used to provide a further understanding of the present invention and form a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0026] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0027] Figure 2 is a cross-sectional view of the conical disk of the present invention;

[0028] Figure 3 is an exploded view of the axial flux wound core of the present invention;

[0029] Figure 4 is a cross-sectional view of the positioning plate of the present invention;

[0030] Figure 5 is a structural schematic diagram of the positioning plate of the present invention.

[0031] In the figure: 1. Bottom plate; 2. Positioning plate; 3. Central positioning part; 4. Tapered disc; 5. Inner tensioning disc; 6. Outer tensioning disc; 7. Positioning groove bar; 8. Moving slider; 9. Curing line cylinder connecting rod; 10. Curing line press head; 11. Axial flux wound iron core; 12. Screw A; 13. Screw B; 14. Hoisting ring; 15. Positioning pin A; 16. Positioning pin B. Specific implementation manner

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0033] Please refer to Figures 1 - 5 , the technical solution provided in this embodiment is as follows:

[0034] A flexible curing line pressing die for an axially-flux motor self-bonding iron core, which is composed of a bottom plate 1, a support mechanism, an axially-flux wound iron core 11, an inner tensioning disc 5, an inner support mechanism, an outer tensioning disc 6, and a pressing mechanism. The axially-flux wound iron core 11 is arranged on the support mechanism, the inner tensioning disc 5 is arranged on the top of the bottom plate 1, and the outer tensioning disc 6 is arranged on the support mechanism.

[0035] In a specific embodiment of the present invention, the inner tensioning disc 5 is sleeved on the tapered disc 4, and the inner tensioning disc 5 is clamped on three positioning groove bars 7. The outer tensioning disc 6 is clamped on three positioning groove bars 7. The bottom plate 1 is used to support the entire pressing die structure device and is fixedly connected to a curing production line (not shown in the figure). The bottom plate 1 is provided with screw holes and pin holes for connecting the positioning plate 2 and the central positioning part 3. Its own thickness is about 20.0 - 22.0 mm. When ensuring the strength, its own weight needs to be considered;

[0036] The plane of the inner tensioning disc 5 is completely attached to the positioning plate 2. The inner wall of the inner tensioning disc 5 has a taper that matches more than 80% of the tapered surface of the tapered disc 4. The outer diameter of the lower end face of the step of the inner tensioning disc 5 is slightly smaller than the inner hole of the positioning plate 2, and there is a bilateral gap of 4.0 mm with the inner hole of the positioning plate 2. The height of the step needs to be 1.0 mm higher than the positioning plate 2, so as not to be interfered by the aperture of the positioning plate 2 during tensioning. After the inner tensioning disc 5 is processed, it needs to be divided into three equal parts to achieve a large-area expansion function. There are three relief grooves on the side, so that the three positioning groove bars 7 can completely penetrate the axially-flux wound iron core 11;

[0037] The outer tightening disc 6 is also a complete circle divided into three equal parts, attached to the positioning plate 2 and can slide freely. The inner hole of the outer tightening disc 6 has the same size as the outer diameter of the iron core. There are three relief grooves on the side edge, enabling the three positioning groove rods 7 to completely penetrate the axial-flux wound iron core 11. By moving the slider 8 back and forth, the outer diameter of the iron core can be in closer contact, with a higher pasting density.

[0038] Specifically, the support mechanism is arranged on the top of the bottom plate 1. The support mechanism includes a positioning plate 2, positioning groove rods 7, and positioning pins A15. There are six positioning pins A15. The six positioning pins A15 are all movably inserted into the bottom of the bottom plate 1, and the six positioning pins A15 all movably penetrate the bottom plate 1 and extend to the upper side of the bottom plate 1. The positioning plate 2 is movably sleeved on the six positioning pins A15. There are three positioning groove rods 7. The three positioning groove rods 7 are all movably clamped on the top of the positioning plate 2, and the three positioning groove rods 7 are evenly distributed.

[0039] In a specific embodiment of the present invention, the six positioning pins A15 can accurately transfer the reference of the center of the bottom plate to the positioning plate 2. The inner diameter of the positioning plate 2 needs to be about 6.0 - 8.0 mm less than the inner hole of the axial-flux wound iron core 11 on both sides, so that the entire plane of the iron core can be attached to the positioning plate 2. When the iron core is under pressure, the edges will not turn up and down. There are 3 positioning grooves opened on its surface, which can facilitate the sliding of the positioning groove rods 7 on the positioning plate 2, for initial positioning and active state;

[0040] The positioning groove rods 7 are used to position the axial-flux wound iron core 11 to make the groove shape of the axial-flux wound iron core 11 neat. In the width direction of the positioning groove rods 7, there is a clearance fit with the iron core groove shape. In the length direction of the positioning groove rods 7, both sides need to penetrate the iron core to achieve a neat groove shape.

[0041] Specifically, the inner support mechanism is arranged on the bottom plate 1. The inner support mechanism is used to expand the inner tightening disc 5. The inner support mechanism includes a center positioning member 3, a tapered disc 4, a curing wire press head 10, and positioning pins B16. There are two positioning pins B16. The two positioning pins B16 are all movably inserted into the top of the bottom plate 1, and the two positioning pins B16 are symmetrically arranged. The center positioning member 3 is movably sleeved on the two positioning pins B16, and the center positioning member 3 is detachably connected to the top of the bottom plate 1. The tapered disc 4 is movably sleeved on the circumferential surface of the center positioning member 3, and the tapered disc 4 is located between the center positioning member 3 and the inner tightening disc 5. The curing wire press head 10 is arranged on the top of the tapered disc 4.

[0042] In a specific embodiment of the present invention, the function of the center positioning member 3 is that when the iron core is under pressure, under the tightening force of the tightening disc and the tapered disc 4, the center of the iron core remains unchanged, so that the force received ensures uniform force at the center and will not cause eccentric force;

[0043] The inner center of the cone disk 4 is positioned on the center positioning part 3, and the bilateral gap with the center positioning part 3 is about 0.05mm. The center reference is transferred to the cone disk 4. The outer diameter of the cone disk 4 adopts a tapered surface, which is the same as the taper of the inner tension disk 5, and more than 80% of the cone surface contact is achieved. The main function is to adjust the outer diameter size of the inner tension disk 5 by moving the cone disk 4 up and down, which can be adjusted to a large or small size. During the solidification process of the axial flux wound core 11, the cone disk 4 will be subjected to the pressure of the curing machine press (not shown in the figure), which is transferred to the inner tension disk 5 to open the inner tension disk 5, ensuring that the tension disk can play a role in expansion and support the inner hole of the core. The cylindricity of the core can also be adjusted. After the solidification is completed, the press moves upward to take out the cone disk 4, so that the inner tension disk 5 can be loosened, and the core can be removed from the mold;

[0044] The function of the curing line press head 10 is to move up and down, so that the cone 4 can move freely and the inner mold of the core can shrink freely. The curing line press head 10 is a part of the curing machine press (not shown in the figure).

[0045] Specifically, the pressing mechanism is arranged on the supporting mechanism, and the pressing mechanism includes a movable slider 8 and a curing line cylinder connecting rod 9. Three curing line cylinder connecting rods 9 are provided, and the three movable sliders 8 are all provided on the surface of the outer tensioning disk 6, and the three movable sliders 8 are evenly distributed, and the three movable sliders 8 are all provided on the top of the positioning plate 2. Three curing line cylinder connecting rods 9 are provided, and each curing line cylinder connecting rod 9 is fixedly connected to the side end of each movable slider 8.

[0046] In a specific embodiment of the present invention, the cylinder on the side of the curing press is driven to exert force on the movable slider 8. After the movable slider 8 is exerted force, it moves to tighten and loosen the outer tightening plate 6. When pressed by pressure, it can closely contact the outer tightening plate 6 and the iron core to increase the stacking coefficient of the iron core. When the cylinder is released, the outer tightening plate 6 is loosened, making it convenient to remove the iron core from the fixed plate.

[0047] The curing line cylinder connecting rod 9 is used to connect the moving slider 8. The curing line cylinder connecting rod 9 is connected to the cylinder on the side of the curing press (not shown in the figure) and moves left and right to allow the outer diameter of the core to shrink freely.

[0048] Specifically, the top of the positioning plate 2 is threadedly connected with two lifting rings 14 , and the two lifting rings 14 are symmetrically arranged.

[0049] In a specific embodiment of the present invention, two lifting rings 14 are threadedly connected to the top of the positioning plate 2, and the two lifting rings 14 are symmetrically arranged.

[0050] Specifically, the center positioning member 3 is detachably connected to the top of the base plate 1 by two screws B13.

[0051] In a specific embodiment of the present utility model, the central positioning member 3 is detachably connected to the top of the bottom plate 1 by two screws B13.

[0052] Specifically, the positioning plate 2 is detachably connected to the top of the bottom plate 1 by six screws A12.

[0053] In a specific embodiment of the present utility model, the positioning plate 2 is detachably connected to the top of the bottom plate 1 by six screws A12.

[0054] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A flexible curing wire pressing die for a self-bonding core of an axial flux motor, characterized in that: include: Bottom plate (1); A support mechanism is arranged on the top of the bottom plate (1), and is used to fix the axial magnetic flux winding core; An inner tensioning plate (5) disposed on the top of the bottom plate (1); An internal support mechanism is provided on the bottom plate (1), and is used to support the inner tensioning plate (5); An external tensioning plate (6) disposed on the supporting mechanism; and The pressing mechanism is arranged on the supporting mechanism.

2. The flexible curing wire pressing mold for the self-bonding core of an axial flux motor according to claim 1, characterized in that: The support mechanism comprises a positioning plate (2), a positioning groove rod (7) and a positioning pin A (15), six positioning pins A (15) are provided, the six positioning pins A (15) are all movably plugged into the bottom of the base plate (1), and the six positioning pins A (15) are all movably penetrated through the base plate (1) and extend to the upper side of the base plate (1), the positioning plate (2) is movably sleeved on the six positioning pins A (15), three positioning groove rods (7) are provided, the three positioning groove rods (7) are all movably clamped on the top of the positioning plate (2), and the three positioning groove rods (7) are evenly distributed.

3. The flexible curing wire pressing mold for the self-bonding core of an axial flux motor according to claim 2, characterized in that: The inner support mechanism comprises a central positioning member (3), a cone disk (4), a curing line press head (10) and a positioning pin B (16). Two positioning pins B (16) are provided. The two positioning pins B (16) are both movably plugged into the top of the bottom plate (1), and the two positioning pins B (16) are symmetrically arranged. The central positioning member (3) is movably sleeved on the two positioning pins B (16), and the central positioning member (3) is detachably connected to the top of the bottom plate (1). The cone disk (4) is movably sleeved on the circumferential surface of the central positioning member (3), and the cone disk (4) is located between the central positioning member (3) and the inner tensioning disk (5). The curing line press head (10) is arranged on the top of the cone disk (4).

4. The flexible curing wire pressing mold for the self-bonding core of an axial flux motor according to claim 3, characterized in that: The pressing mechanism comprises a movable slider (8) and a curing line cylinder connecting rod (9), three of the curing line cylinder connecting rods (9) are provided, the three movable sliders (8) are all provided on the surface of the outer tensioning plate (6), and the three movable sliders (8) are evenly distributed, the three movable sliders (8) are all provided on the top of the positioning plate (2), and three of the curing line cylinder connecting rods (9) are provided, and each of the curing line cylinder connecting rods (9) is fixedly connected to the side end of each movable slider (8).

5. The flexible curing wire pressing mold for the self-bonding core of an axial flux motor according to claim 4, characterized in that: The top of the positioning plate (2) is threadedly connected to two lifting rings (14), and the two lifting rings (14) are symmetrically arranged.

6. The flexible curing wire pressing mold for the self-bonding core of an axial flux motor according to claim 5, characterized in that: The center positioning member (3) is detachably connected to the top of the base plate (1) via two screws B (13).

7. The flexible curing wire pressing mold for the self-bonding core of an axial flux motor according to claim 6, characterized in that: The positioning plate (2) is detachably connected to the top of the base plate (1) via six screws A (12).

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