Close-fitting tool for motor end cover and iron core with winding
By designing a tight fitting tool for motor assembly, the core positioning columns and end cap positioning blocks are used to achieve accurate positioning of the core and end cap, the problems of complex and safety hazards of tight fitting operations of the iron core and end cap in the prior art are solved, and assembly efficiency and safety are improved.
Patent Information
- Application Number
- CN202421207534.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-05-30
AI Technical Summary
In the existing motor assembly technology, the tight fitting of the iron core and the end cap of the embedded winding is complicated, and requires high-precision alignment and hand-held end cap, which poses problems of operation difficulty and safety hazards.
Design a motor end cover and a tight fitting equipment with a winding iron core, including a base plate, a core positioning column, a guide rod, a pressure plate, a pressure plate return spring and a press. The core positioning column and an end cover positioning block are used to achieve accurate positioning of the core and the end cover, reducing manual operation.
It simplifies assembly operations, improves assembly efficiency and safety, and reduces the complexity and safety risks of manual operation.
Smart Images
Figure CN222563673U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motor assembly, in particular to a tool for tightly fitting a motor end cover and an iron core with a winding. Background Art
[0002] During the motor production process, the iron core with the winding embedded needs to be tightly assembled with the end cover on one side. The current practice is generally to manually align the position of the iron core with the winding and the end cover, and then use a press to achieve a tight fit between the two. However, this requires high operating requirements for the staff. On the one hand, it is necessary to find the matching position of the end cover and the iron core to prevent the end cover from squeezing the winding and other circuit components on the iron core and causing short circuits and other faults; on the other hand, it is necessary to hold the end cover with hands to prevent the end cover from slipping and shifting during the operation of the press, which also poses certain safety hazards. Utility Model Content
[0003] The purpose of the utility model is to solve the problems existing in the above-mentioned prior art and to provide a tool for tightly fitting a motor end cover and an iron core with a winding, which can simplify the assembly operation and improve the assembly efficiency and safety.
[0004] The purpose of this utility model is achieved through the following technical solutions:
[0005] A tooling for tightly fitting a motor end cover and an iron core with a winding, comprising a base plate, an iron core positioning column arranged in the middle of the base plate, two guide rods arranged on opposite sides of the base plate, a pressure plate slidably connected to the two guide rods, a pressure plate return spring sleeved on the two guide rods, and a press arranged above the pressure plate, wherein an end cover positioning block is provided on the lower side of the pressure plate.
[0006] As a preferred embodiment of the utility model, a base is provided in the middle of the bottom plate, and the core positioning column is provided on the base.
[0007] As a preferred embodiment of the present invention, the base is detachably connected to the bottom plate.
[0008] As a preferred embodiment of the present invention, a plug-in slot is provided on the base, and the core positioning column is plugged into the plug-in slot.
[0009] As a preferred embodiment of the present invention, the plug-in slots are multiple and are arranged at different radial positions.
[0010] As a preferred embodiment of the present invention, an iron core support ring is provided in the middle portion of the base.
[0011] As a preferred embodiment of the present invention, an introduction slope is provided on the upper end of the core positioning column.
[0012] As a preferred embodiment of the present invention, the lower side of the pressure plate is provided with two end cover positioning blocks respectively cooperating with the opposite ends of the end cover.
[0013] As a preferred embodiment of the utility model, a plurality of groups of mounting holes are provided on the pressure plate, and the two end cover positioning blocks are provided at one group of the mounting holes.
[0014] As a preferred embodiment of the present invention, a conical introduction structure is provided at the upper end of the guide rod.
[0015] The utility model has the advantages that the iron core and the end cover are accurately positioned by respectively utilizing the iron core positioning column and the end cover positioning block, the operation is simple, no hand support is required, and the assembly efficiency and safety are higher. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the exploded structure of the winding core and the end cover targeted by this embodiment;
[0017] Figure 2 A top view of the iron core with windings and end caps targeted by this embodiment;
[0018] Figure 3 A bottom view of the iron core with windings and end caps targeted by this embodiment;
[0019] Figure 4 A schematic structural diagram of a tooling for tightly fitting a motor end cover and an iron core with windings provided in Example 1;
[0020] Figure 5 A schematic diagram of the use status of a tooling for tightly fitting a motor end cover and an iron core with windings provided in Example 1;
[0021] Figure 6 It is a structural schematic diagram of the base in Example 2;
[0022] Figure 7 It is a structural schematic diagram of the pressure plate in Example 2;
[0023] In the figure: 11-iron core; 12-skeleton; 13-winding; 14-PCB connecting plate; 21-cover; 211-groove; 22-sleeve; 3-insulating gasket; 41-bottom plate; 42-iron core positioning column; 43-guide rod; 44-pressure plate; 441-end cover positioning block; 442-mounting hole; 45-pressure plate reset spring; 46-base; 461-plug slot; 47-iron core support ring. DETAILED DESCRIPTION
[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0025] Example 1
[0026] like Figure 1-3The structure diagram of the iron core with winding and the end cover of the embodiment is shown, wherein the iron core with winding includes an iron core 11, a frame 12 mounted on the iron core 11, a winding 13 wound on the frame 12, and a PCB connecting plate 14 arranged at one end of the frame 12; the end cover includes a cover body 21 and a sleeve 22. The tight assembly of the end cover and the iron core with winding mainly requires the sleeve 22 to be inserted into the iron core 11, and since the sleeve 22 is a cylindrical structure, the end cover can be inserted into the iron core 11 at any circumferential angle, but the structure inside the end cover is not flat, and it is easy to squeeze the PCB connecting plate 14 and the winding 13. Therefore, not only is an insulating gasket 3 provided on the inside of the end cover, but also, in order to ensure the accurate correspondence between the insulating gasket 3 and the PCB connecting plate 14, so as to avoid the internal structure of the end cover squeezing the PCB connecting plate 14 or the winding 13, it is necessary to ensure the accuracy of the assembly position of the end cover and the iron core.
[0027] like Figure 4 As shown, this embodiment provides a tooling for tightly fitting the motor end cover and the iron core with winding, including a base plate 41, an iron core positioning column 42 arranged in the middle of the base plate 41, two guide rods 43 arranged on opposite sides of the base plate 41, a pressure plate 44 slidably connected to the two guide rods 43, a pressure plate return spring 45 sleeved on the two guide rods 43, and a press (not shown in the figure) arranged above the pressure plate 44, and an end cover positioning block 441 is provided on the lower side of the pressure plate 44. Principle of use: first place the iron core with winding on the base plate 41, and use the gap between adjacent windings to cooperate with the iron core positioning column 42 to achieve the positioning of the iron core with winding, and then preliminarily assemble the end cover to the iron core, and then start the press, which pushes the pressure plate 44 downward, and the end cover positioning block 441 on the lower side of the pressure plate 44 is embedded. Figure 1 The groove 211 on the side of the end cover shown in the figure ensures that the end cover will not shift during the pressing process, thereby ensuring the accurate assembly of the end cover and the iron core with windings. In addition, under the support of the pressure plate return spring 45, the pressure plate 44 has sufficient operating space with the iron core with windings in a natural state, which is convenient for the insertion of the iron core and the end cover, and the removal of the iron core after assembly. It should also be noted that since there are multiple windings on the iron core, there are multiple gaps that can cooperate with the iron core positioning column 42, but there are not so many grooves on the end cover. Therefore, it is necessary to preset the circumferential angle of the iron core with windings, and the iron core cannot be placed on the bottom plate at any angle to ensure that the end cover can cooperate with it.
[0028] Specifically, in order to improve the support stability of the iron core with winding, a base 46 is provided in the middle of the bottom plate 41, and the iron core positioning column 42 is provided on the base 46. The provision of the base 46 increases the thickness of the part supporting the iron core, which is not easily deformed under long-term high pressure, and the support is more stable. At the same time, it also increases the weight of the entire bottom plate, and the placement stability is higher. In order to facilitate maintenance or replacement of the base, the base 46 is detachably connected to the bottom plate 41 by screws. For example, the base is subject to a certain degree of wear due to long-term use, or it is necessary to replace the base of other specifications to adapt to the iron core of different specifications.
[0029] In order to facilitate the installation of the core positioning column 42, the base 46 is provided with a plug-in slot, and the core positioning column 42 is plugged into the plug-in slot. Since the core positioning column 42 is not subjected to a large vertical force, a stable connection can be achieved through the friction between the core positioning column and the plug-in slot, and it is also easy to disassemble. In order to facilitate the insertion of the core positioning column 42 between two adjacent windings, the upper end of the core positioning column 42 is provided with an introduction slope on both sides facing away from the two windings, that is, the closer the core positioning column is to the upper end, the smaller its thickness is.
[0030] In addition, a core support ring 47 is provided in the middle of the base 46. On the one hand, the core support ring 47 is supported on the end face of the core 11 to lift the core 11 and prevent the skeleton 12 from directly contacting the base 46 and being squeezed. On the other hand, the outer side surface of the core support ring 47 cooperates with the inner side surface of the skeleton 12 to ensure the position accuracy of the core with winding.
[0031] like Figure 2 As shown, a groove 211 is provided at both opposite ends of the end cover. Therefore, in order to ensure the positioning stability of the end cover, two end cover positioning blocks 441 are provided on the lower side of the pressure plate 44 to respectively cooperate with the opposite ends of the end cover.
[0032] Finally, in order to facilitate the assembly of the pressure plate 44 onto the guide rod 43 , a conical introduction structure is provided at the upper end of the guide rod 43 .
[0033] Example 2
[0034] The tooling described in Example 1 is generally designed for the assembly of a certain type of motor, so the positions of the core positioning column 42 on the base 46 and the end cover positioning block 441 on the pressure plate 44 are fixed. In order to improve the utilization rate of the tooling, we can design a position adjustment structure for the core positioning column and the end cover positioning block. Figure 6 and 7As shown, three insertion slots 461 are arranged along the radial direction on the base 46, and three corresponding groups of mounting holes 442 are arranged on the pressure plate 44. Thus, we can adjust the installation positions of the core positioning column 42 and the end cover positioning block 441 to adapt to the assembly of motors of different specifications.
[0035] The above is only a preferred specific implementation of the utility model, which is a realization method based on the overall concept of the utility model, and the protection scope of the utility model is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A tooling for tightly fitting a motor end cover and a core with windings, characterized in that: It includes a base plate, an iron core positioning column arranged in the middle of the base plate, two guide rods arranged on opposite sides of the base plate, a pressure plate slidably connected to the two guide rods, a pressure plate return spring sleeved on the two guide rods, and a press machine arranged above the pressure plate, and an end cover positioning block is provided on the lower side of the pressure plate.
2. The tooling for tightly fitting a motor end cover and a winding core according to claim 1, characterized in that: A base is provided in the middle of the bottom plate, and the core positioning column is provided on the base.
3. The tooling for tightly fitting a motor end cover and a winding core according to claim 2, characterized in that: The base is detachably connected to the bottom plate.
4. The tooling for tightly fitting a motor end cover and a winding core according to claim 2, characterized in that: The base is provided with an inserting slot, and the core positioning column is inserted into the inserting slot.
5. The tooling for tightly fitting the motor end cover and the iron core with winding according to claim 4 is characterized in that: The inserting slots are provided in a plurality at different radial positions.
6. The tooling for tightly fitting the motor end cover and the iron core with winding according to claim 2, characterized in that: An iron core supporting ring is arranged in the middle of the base.
7. The tooling for tightly fitting a motor end cover and a winding core according to claim 1, characterized in that: An introduction slope is arranged on the upper end of the core positioning column.
8. The tooling for tightly fitting a motor end cover and a winding core according to claim 1, characterized in that: The lower side of the pressing plate is provided with two end cover positioning blocks respectively matching the two opposite ends of the end cover.
9. The tooling for tightly fitting the motor end cover and the iron core with winding according to claim 8, characterized in that: The pressing plate is provided with a plurality of groups of mounting holes, and the two end cover positioning blocks are arranged at one group of the mounting holes.
10. The tooling for tightly fitting a motor end cover and a winding core according to claim 1, characterized in that: The upper end of the guide rod is provided with a conical introduction structure.