Positioning tool for assembling motor end cover and winding core

Abstract

The utility model discloses a kind of positioning tool for motor end cover and winding core assembly, including the base for placing winding core, first positioning column for inserting into the winding core in the base, first positioning piece with the detachable connection of end cover and second positioning piece can be inserted into the clearance between the adjacent two windings of the winding core to circumferential positioning the winding core, first positioning hole is equipped on the first positioning piece, the first positioning piece is circumferential positioned by the second positioning piece passing through the first positioning hole, and the first positioning piece and the second positioning piece are along with the sliding fit of assembly direction. The utility model has the beneficial effect that it can improve assembly efficiency and security.

Description

Technical Field

[0001] This utility model relates to a positioning fixture for assembling a motor end cover and a winding iron core, belonging to the field of motor assembly technology. Background Technology

[0002] In the motor manufacturing process, the iron core with embedded windings needs to be tightly assembled with an end cover on one side. Currently, the common practice is to manually align the wound iron core with the end cover, and then use a press to achieve a tight fit. However, this requires highly skilled operators. On one hand, they need to accurately locate the mating position of the end cover and the iron core to avoid the end cover squeezing the windings and other circuit components on the iron core, causing short circuits and other malfunctions. On the other hand, to prevent the end cover from slipping during press operation, manual alignment of the end cover is always required during assembly. However, manually aligning the end cover is not only prone to horizontal displacement due to shaking during operation, affecting assembly accuracy, but also poses a safety hazard as operators are easily injured by the press. Utility Model Content

[0003] The purpose of this utility model is to provide a positioning fixture for assembling a motor end cover and a wound iron core. When assembling the end cover and the wound iron core, the accuracy of the assembly can be ensured without the need for an operator to hold the end cover by hand. This can effectively improve the assembly accuracy while avoiding the risk of pinching injury when the end cover is manually held.

[0004] This utility model is achieved through the following technical solution.

[0005] A positioning fixture for assembling a motor end cover and a wound iron core includes a base for placing the wound iron core, a first positioning post disposed on the base for insertion into the wound iron core, a first positioning member detachably connected to the end cover, and a second positioning member capable of being inserted into the gap between two adjacent windings of the wound iron core to circumferentially position the wound iron core. The first positioning member has a first positioning hole, and the second positioning member passes through the first positioning hole to circumferentially position the first positioning member. The first positioning member and the second positioning member slide in a sliding fit along the assembly direction.

[0006] As a further improvement of this utility model, the first positioning member is provided with a through second positioning hole, and the cover body of the end cap is engaged with the second positioning hole; and the bottom end of the cover body is provided with a limiting part that abuts against the bottom of the first positioning member to support the first positioning member.

[0007] As a further improvement of this utility model, the upper surface of the end cap is flush with the upper surface of the first positioning member.

[0008] As a further improvement of this utility model, the second positioning member includes at least a first part located at the upper end and a second part located at the lower end. The first part passes through the first positioning hole and slides in cooperation with the first positioning hole along the assembly direction. The second part is embedded between two adjacent windings of the wound iron core.

[0009] As a further improvement of this utility model, the second part is provided with guide slopes on both sides facing the two adjacent windings.

[0010] As a further improvement of this utility model, the base is provided with a support ring that surrounds the outer circumference of the positioning post and is used to support the lower end face of the iron core.

[0011] As a further improvement of this utility model, a second positioning post is provided on the top of the first positioning post and is coaxially arranged therewith, for guiding the end cap to be inserted into the skeleton with the winding iron core along the assembly direction.

[0012] As a further improvement of this utility model, the top end of the first positioning post has a limiting surface for abutting against the bottom end of the end cover, so as to limit the travel of the end cover relative to the winding core.

[0013] As a further improvement of this utility model, it also includes a support plate, on which the base is detachably connected.

[0014] As a further improvement of this utility model, the first positioning post is disposed in the middle of the base.

[0015] The beneficial effects of this utility model are:

[0016] 1. During the assembly process, the second positioning component simultaneously positions the winding core and the end cap circumferentially, ensuring that the relative position of the end cap and the winding core in the horizontal direction remains unchanged during assembly. At the same time, the first positioning component and the second positioning component form a sliding fit, allowing the end cap to move only along the assembly direction, ensuring the accuracy of the end cap movement and thus ensuring the accuracy of the assembly. Compared with existing technologies, it eliminates the need for operators to hold the end cap during assembly, effectively improving assembly accuracy while avoiding the risk of pinching injuries caused by manual handling of the end cap.

[0017] 2. The winding core is circumferentially fixed by inserting the second positioning piece into the winding gap, which cleverly utilizes the structural features of the winding core itself.

[0018] 3. The snap-fit ​​between the first positioning component and the end cover enables quick assembly and disassembly between the first positioning component and the end cover, resulting in high assembly efficiency.

[0019] 4. The top of the first positioning post is provided with a second positioning post coaxially arranged with it, which is used to guide the end cover to be inserted into the skeleton with the winding iron core along the assembly direction. The second positioning post slides with the inner surface of the bushing, so that the end cover can be moved to the assembly position quickly and accurately, making the operation convenient and efficient. Attached Figure Description

[0020] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings to help understand the purpose and advantages of this utility model, wherein:

[0021] Figure 1 This is a schematic diagram of the structure when the end cap is assembled with the winding iron core.

[0022] Figure 2 This is a schematic diagram of a structure with a winding iron core;

[0023] Figure 3 This is a top view of the winding iron core;

[0024] Figure 4 This is a top view of the end cap;

[0025] Figure 5 This is a schematic diagram of the positioning fixture for assembling a motor end cover and a winding iron core according to the present invention.

[0026] Figure 6 This is a schematic diagram of the connection between the base and the first and second positioning posts.

[0027] Figure 7 This is a structural schematic diagram of the first positioning component;

[0028] Figure 8 This is a schematic diagram of the second positioning component. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0030] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0031] like Figures 1-4The diagram shows the structure of the wound iron core 1 and end cap 2 in this embodiment. The end cap 2 includes a cover body 21 and a bushing 22. The wound iron core 1 includes an iron core 12, a frame 11 fitted on the iron core, and a winding 13 wound on the frame 11. The tight fit between the end cap 2 and the wound iron core is achieved by inserting the bushing 22 into the receiving space of the frame 11. Since the bushing 22 is a cylindrical structure, the end cap 2 can be inserted into the frame 11 at any circumferential angle. During assembly, the bushing 22 is embedded into the frame 11 by pressing down on the end cap 2 to achieve a tight fit. During the assembly process, it is necessary to ensure the accuracy of the assembly position of the end cap 2 and the frame 11 and the stability of the movement of the end cap 2.

[0032] This embodiment provides a positioning fixture for assembling a motor end cover and a wound iron core, referring to... Figures 5-8 It includes a base 3 for placing a wound iron core 1, a first positioning post 4 disposed on the base 3 for insertion into the wound iron core 1, a first positioning member 5 detachably connected to the end cover 2, and a second positioning member 6 that can be inserted into the gap between two adjacent windings 13 to circumferentially position the wound iron core 1; the first positioning member 5 is provided with a first positioning hole 51, the second positioning member 6 passes through the first positioning hole 51 to circumferentially position the first positioning member 5, and the first positioning member 5 and the second positioning member 6 slide in the assembly direction.

[0033] The positioning fixture in this embodiment is used as follows: First, the wound iron core 1 is placed on the base 3 through the first positioning post 4. The first positioning post 4 defines the position of the iron core on the base 3. Then, the end cap 2 is initially assembled onto the frame 11. Next, the second positioning member 6 is inserted into the gap between two adjacent windings 13 and cooperates with them to circumferentially fix the wound iron core 1. Finally, the first positioning member 5 is installed on the end cap 2, and the second positioning member 6 passes through the first positioning hole 51 on the first positioning member 5, thereby fixing the assembly position of the end cap 2 and the wound iron core. During assembly, the end cap 2 is pressed down by a press, causing the end cap 2 to move along the assembly direction. Because the first positioning member and the second positioning member form a sliding fit, the end cap can only move along the assembly direction, ensuring that the end cap can be accurately pressed into the wound iron core 1, thereby achieving a tight fit between the two.

[0034] In this embodiment, the second positioning component simultaneously positions the winding core and the end cap circumferentially, ensuring that the relative position of the end cap and the winding core in the horizontal direction remains unchanged during assembly. Meanwhile, the first positioning component 5 forms a sliding fit with the second positioning component 6 through the first positioning hole 51, allowing the end cap to move only along the assembly direction, thus ensuring the accuracy of the end cap's movement path. Compared to the prior art, it eliminates the need for the operator to constantly hold the end cap during assembly, effectively improving assembly accuracy while avoiding the risk of pinching injuries when manually holding the end cap.

[0035] In addition, the second positioning member 6 is inserted into the gap of the winding 13 to fix the winding core 1 in a circumferential manner, which cleverly utilizes the structural features of the winding core itself.

[0036] It should be noted that the assembly direction mentioned above refers to the vertical downward movement of the bushing 22 of the end cover 2 when assembling the end cover 2 with the wound iron core 1, so as to embed it into the frame 11. It should also be noted that since the iron core has multiple windings 13, there are multiple gaps that can cooperate with the second positioning member 6. However, the end cover 2 does not have as many grooves. Therefore, the circumferential angle of the wound iron core 1 needs to be adjusted in advance, and the iron core cannot be placed on the base 3 at any arbitrary angle to ensure that the second positioning member 6 can cooperate with it.

[0037] In this embodiment, the first positioning member 5 has a through second positioning hole 52, the cover body 21 of the end cover 2 is engaged with the second positioning hole 52, and the bottom end of the cover body 21 is provided with a limiting part 211 that abuts against the bottom of the first positioning member 5 to support the first positioning member 5. The limiting part 211 is located at the bottom end of the cover body 21. The engagement between the first positioning member 5 and the end cover 2 can realize quick assembly and disassembly between the first positioning member 5 and the end cover 2, resulting in high assembly efficiency.

[0038] Furthermore, when the first positioning member 5 is detachably connected to the end cover 2, the upper surface of the end cover 2 is flush with the upper surface of the first positioning member 5. Therefore, when the press moves and contacts the end cover 2, it can press the first positioning member 5 down synchronously, which on the one hand keeps the first positioning member 5 and the end cover 2 locked, and on the other hand improves the contact stability between the first positioning member 5 and the press.

[0039] It should be noted that when the press contacts the end cover 2, the press does not contact the second positioning member 6, so as to avoid excessive pressure on the first positioning member 5 and damage to the winding 13.

[0040] In this embodiment, the second positioning member 6 includes at least a first portion 61 at the upper end and a second portion 62 at the lower end. The first portion 61 passes through the first positioning hole 51 and slides in conjunction with the first positioning hole 51 along the assembly direction. The second portion 62 is embedded between two adjacent windings 13 of the wound core 1. The first positioning hole 51 is rectangular or square, and the shape of the first portion 61 is adapted to the first positioning hole 51. At the same time, the surface of the first portion 61 is in close contact with the inner wall of the first positioning hole 51 and can slide relative to it along the assembly direction.

[0041] In this embodiment, in order to facilitate the insertion of the second positioning member 6 between two adjacent windings 13, the second part 62 is provided with guide slopes on both sides facing the two windings 13, that is, the thickness of the second part 62 is smaller as it gets closer to the top.

[0042] In this embodiment, the base 3 is provided with a support ring 8 that surrounds the outer circumference of the first positioning post 4 and is used to support the lower end face of the iron core. The upper end face of the support ring 8 abuts against the lower end face of the iron core, that is, the support ring 8 is used to support the end face of the iron core 12, which can raise the iron core and prevent the frame 11 from being directly in contact with the base 3 and being squeezed and damaged. At the same time, the outer side of the support ring 8 cooperates with the inner side of the frame 11, further ensuring the positional accuracy of the wound iron core 1.

[0043] In this embodiment, the first positioning post 4 is located in the middle of the base 3, and the top of the first positioning post 4 is provided with a second positioning post 7 coaxially arranged therewith, which is used to guide the end cover 2 to be inserted into the skeleton 11 with the winding iron core 1 along the assembly direction. The second positioning post 7 slides with the inner surface of the bushing 22, so that the end cover 2 can be moved to the assembly position quickly and accurately, which is convenient to operate.

[0044] In addition, the top surface of the first positioning post 4 can abut against the bottom end of the end cover 2 to limit the travel of the end cover 2 relative to the wound iron core 1, so as to prevent the end cover 2 from moving excessively under the push of the press, thereby preventing it from being pressed too much into the frame 11 and causing damage to the wound iron core 1.

[0045] In this embodiment, a support plate 9 is also included, and the base 3 is detachably connected to the support plate 9. On the one hand, the support plate 9 makes the positioning fixture more stable, and on the other hand, it is convenient for the operator to move the positioning fixture. The detachable connection between the base 3 and the support plate 9 also facilitates the maintenance of the base 3.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A positioning fixture for assembling a motor end cover and a winding iron core, characterized in that, The device includes a base (3) for placing a wound iron core (1), a first positioning post (4) provided on the base (3) for inserting into the wound iron core (1), a first positioning member (5) detachably connected to the end cover (2), and a second positioning member (6) that can be inserted into the gap between two adjacent windings (13) of the wound iron core (1) to circumferentially position the wound iron core (1). The first positioning member (5) is provided with a first positioning hole (51), and the second positioning member (6) passes through the first positioning hole (51) to circumferentially position the first positioning member (5), and the first positioning member (5) and the second positioning member (6) slide in the assembly direction.

2. The positioning fixture for assembling a motor end cover and a winding core according to claim 1, characterized in that, The first positioning member (5) is provided with a through second positioning hole (52), and the cover body (21) of the end cap (2) is engaged with the second positioning hole (52); and the bottom end of the cover body (21) is provided with a limiting part (211) that abuts against the bottom of the first positioning member (5) to support the first positioning member (5).

3. The positioning fixture for assembling a motor end cover and a winding core according to claim 2, characterized in that, The upper surface of the end cap (2) is flush with the upper surface of the first positioning member (5).

4. The positioning fixture for assembling a motor end cover and a winding core according to claim 1, characterized in that, The second positioning member (6) includes at least a first part (61) at the upper end and a second part (62) at the lower end. The first part (61) can pass through the first positioning hole (51) and slide with the first positioning hole (51) in the assembly direction. The second part (62) is embedded between two adjacent windings (13) of the winding core (1).

5. A positioning fixture for assembling a motor end cover and a winding core according to claim 4, characterized in that, The second part (62) has guide slopes on both sides facing the two adjacent windings (13).

6. The positioning fixture for assembling a motor end cover and a winding core according to claim 1, characterized in that, The base (3) is provided with a support ring (8) that surrounds the outer circumference of the first positioning post (4) and is used to support the lower end face of the iron core.

7. The positioning fixture for assembling a motor end cover and a winding core according to claim 1, characterized in that, The top of the first positioning post (4) is provided with a second positioning post (7) coaxially arranged therewith, which is used to guide the end cap (2) to be inserted into the skeleton (11) of the winding iron core (1) along the assembly direction.

8. A positioning fixture for assembling a motor end cover and a winding core according to claim 7, characterized in that, The top surface of the first positioning post (4) is used to abut against the bottom end of the end cap (2) to limit the travel of the end cap (2) relative to the winding core (1).

9. A positioning fixture for assembling a motor end cover and a winding core according to claim 1, characterized in that, It also includes a support plate (9), and the base (3) is detachably connected to the support plate (9).

10. A positioning fixture for assembling a motor end cover and a winding core according to claim 1, characterized in that, The first positioning post (4) is located in the middle of the base (3).

Images