Splicing method of spliced motor stator

Abstract

The invention relates to the technical field of spliced motor stators, in particular to a splicing method of a spliced motor stator. Comprising the following steps: step 1, positioning the outer circle of a stator, and adjusting the position of a supporting block on a tool until the outer wall of the supporting block is completely matched with the outer wall of the required stator; step 2, positioning the inner circle of the stator, mounting the core mold in the middle of the tool, and enabling the outer wall of the core mold to be matched with and fixed to the inner wall of the required stator; step 3, mounting a single stator iron core unit, aligning one unit with one supporting block and inserting the unit into a mounting area formed between the core mold and the supporting block; and 4, splicing and forming the stator, and sequentially and adjacently splicing the plurality of stator iron core units in the radial direction. The splicing method of the spliced motor stator has the advantages of being high in working efficiency, high in precision, good in production quality, high in structural strength, simple in structure, convenient to operate and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of split motor stators, and particularly to an assembly method for a split motor stator. Background Art

[0002] The stator is the stationary part of a motor or a generator, and the stator is composed of a stator core, a stator winding, and a frame.

[0003] Chinese Patent CN118983963A discloses a split stator core and an assembly method. It includes a first core and a second core. The first core is an annular structure formed by laminating multiple first punching sheets and located at the middle position of the stator core in the axial direction. A circumferential flow channel communicating with the cooling oil inlet is formed between the outer circumferential end face of the first core and the housing. The second core is an annular structure formed by laminating multiple second punching sheets and located at both axial sides of the stator core. An axial inner flow channel penetrating the second core axially is provided on the second core. One end of the axial inner flow channel communicates with the circumferential flow channel, and the other end extends axially to the side of the stator core. In the motor stator core of the present invention, the die specifications are reduced, the material utilization rate is improved, the heat dissipation capacity of the stator is enhanced. At the same time, structures such as an oil injection ring and a housing oil groove can be saved, the product cost is reduced, and the processability of the product is improved.

[0004] However, this technical solution does not have a roundness correction device and requires an additional roundness correction operation after the stator is formed, which is inconvenient to use. Moreover, this stator is axially spliced, and the splicing part is weak. After long-term use, loosening or deformation may occur, further increasing the gap between the punching sheets, resulting in poor stator performance and affecting the structural strength of the stator. Summary of the Invention

[0005] The purpose of the present invention is to provide an assembly method for a split motor stator in view of the deficiencies of the prior art. Through the radial splicing of stator core units and combined with the positioning of the inner and outer circles of the stator, the installation and roundness correction of the stator are carried out on the same device, eliminating the need for an additional roundness correction operation, effectively ensuring the roundness and accuracy of the motor core, and improving the overall quality of the stator.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An assembly method for a split motor stator, comprising the following steps: Step 1. Outer circle positioning of the stator: Adjust the positions of the support blocks on the tooling, and adjust the several support blocks of the tooling in sequence until the outer wall dimensions of the support blocks are exactly adapted to the outer wall dimensions of the required stator. Step 2. Inner circle positioning of the stator: Install the core mold in the middle of the tooling and set it inside the support blocks, and then adjust the position of the core mold so that its outer wall dimensions are adapted to the inner wall dimensions of the required stator and fix it. Step 3: Installation of a single stator core unit. Align a stator core unit with one of the support blocks and insert it into the installation area formed between the core mold and the support block, so that the outer wall of the stator core unit abuts against the outer wall of the support block, and the inner wall of the stator core unit abuts against the outer wall of the core mold; Step 4: Assembly and molding of the stator. Insert multiple stator core units into the installation area in sequence, and perform radial splicing on two adjacent stator core units. After cyclic operation, the required stator is formed.

[0007] Preferably, one side of a single stator core unit is provided with a protrusion, and the other side is provided with a groove. Insert the groove of one stator core unit corresponding to the protrusion of the already installed stator core unit, or insert the protrusion of one stator core unit corresponding to the groove of the already installed stator core unit.

[0008] Preferably, the shape of the protrusion is adapted to the shape of the groove.

[0009] Preferably, the support blocks are circumferentially distributed on the outer periphery of the core mold.

[0010] Preferably, the support blocks are arranged on the support seats of the tooling.

[0011] Preferably, one end of the support seat is slidably connected to the base of the tooling, and the other end adjusts the position of the support block on the support seat through a first fastener.

[0012] Preferably, the support seat adjusts its position on the base through a second fastener.

[0013] Preferably, the outer wall shape of the support block is adapted to the outer wall shape of the stator core unit.

[0014] Preferably, a number of guide posts are arranged between the support block and the support seat.

[0015] Preferably, the core mold is of a split structure and is arranged on the installation table in the middle of the base.

[0016] The beneficial effects of the present invention are as follows: Through the radial splicing method, the stator of the present invention allows for mechanized winding and modular assembly, simplifies the production process, improves production efficiency, and can also ensure that the axial end faces of the stator are flat, the inner and outer circles are concentric, and the groove shapes of the winding grooves are unified. Moreover, this method defines the inner and outer circles of the stator respectively, which can effectively reduce assembly errors, improve the overall accuracy of the stator, and has good repeatability, suitable for large-scale production. The installation steps of each stator core unit are relatively simple and easy to standardize, thus improving production efficiency. By respectively arranging protrusions and grooves on both sides of the stator core unit, the present invention enables adjacent stator core units to be closely spliced to form a stable mechanical connection, which can effectively reduce loosening or deformation caused by vibration during operation, thereby improving processing accuracy and ensuring processing quality. (3) Through the two-stage adjustment of the support blocks, the position of the support blocks in contact with the outer wall of the stator can be changed, and corresponding adjustments can be made according to the sizes of different stators, which can meet the production requirements of different specifications of stators, has a wide range of applications, and controls the movement of the support seats and support blocks through bolts. Its structure is simple, the fixing effect is good, and the operation is convenient, which can ensure the stability of the stator core unit during installation.

[0017] (4) By adopting a split-type core mold, specifically a two-piece type, the present invention can conveniently position and support the stator from both sides, facilitating installation and disassembly, improving work efficiency, and the split design allows for local adjustment of the stator during splicing to ensure the concentricity and roundness of the stator.

[0018] In summary, the present invention has the advantages of high work efficiency, high precision, good production quality, high structural strength, simple structure, and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structural schematic diagram of Embodiment 1 of the present invention; Figure 2 is the schematic diagram of the stator after forming in Embodiment 1 of the present invention; Figure 3 is the structural schematic diagram of a single stator core unit in Embodiment 1 of the present invention; Figure 4 is the tooling structural schematic diagram of Embodiment 1 of the present invention; Figure 5 is Figure 4 the enlarged view of part A of Figure 6 is the component decomposition diagram of Embodiment 2 of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0022] Embodiment 1 As Figures 1-6 shown, this embodiment provides an assembling method for a spliced motor stator, including the following steps: Step 1. Outer circle positioning of the stator. Adjust the positions of the support blocks 11 on the tooling 1, and sequentially adjust several of the support blocks 11 of the tooling 1 until the outer wall dimensions of the support blocks 11 are completely adapted to the outer wall dimensions of the required stator. Step 2. Inner circle positioning of the stator. Install the core mold 12 in the middle of the tooling 1 and set it inside the support blocks 11, and then adjust the position of the core mold 12 so that its outer wall dimensions are adapted to the inner wall dimensions of the required stator and fixed. The size of the installation area 13 can be adjusted correspondingly according to the actual size of the stator. Step 3. Installation of a single stator core unit 2. Align a stator core unit 2 with one of the support blocks 11 and insert it into the installation area 13 formed between the core mold 12 and the support block 11, so that the outer wall of the stator core unit 2 abuts against the outer wall of the support block 11, and the inner wall of the stator core unit 2 abuts against the outer wall of the core mold 12. Step 4. Assembly and forming of the stator. Insert multiple stator core units 2 into the installation area 13 in sequence, and perform radial splicing on two adjacent stator core units 2. After cyclic operation, the required stator is formed. The radial splicing method allows for mechanized winding and modular assembly, simplifies the production process, improves production efficiency, and can also ensure that the axial end face of the stator is flat, the inner and outer circles are concentric, and the groove shapes of the winding grooves are unified.

[0023] Among them, this method defines the inner and outer circles of the stator respectively, which can effectively reduce the assembly error, improve the overall accuracy of the stator, and has good repeatability, suitable for large-scale production. The installation steps of each stator core unit 2 are relatively simple and easy to standardize, thus improving production efficiency.

[0024] In this embodiment, a protrusion 21 is provided on one side of a single stator core unit 2, and a groove 22 is provided on the other side. Insert the groove 22 of one of the stator core units 2 corresponding to the protrusion 21 of the installed stator core unit 2, or insert the protrusion 21 of one of the stator core units 2 corresponding to the groove 22 of the installed stator core unit 2. The design of the protrusion 21 and the groove 22 enables the adjacent stator core units 2 to be closely spliced to form a stable mechanical connection, which can effectively reduce loosening or deformation caused by vibration during operation, thereby improving the processing accuracy and ensuring the processing quality.

[0025] Meanwhile, the shape of the protrusion 21 is adapted to the shape of the groove 22, preferably trapezoidal, which is convenient for insertion from above. It only needs to align the protrusion 21 with the groove 22 without repositioning, thus improving work efficiency.

[0026] In addition, all the support blocks 11 can be adjusted to a standard circle first, then the core mold 12 is adjusted to be concentric with the support blocks 11, and then multiple stator core units 2 are spliced in sequence, so that the formed stator does not need to be roundness corrected, reducing unnecessary operations, being convenient to use, and further improving work efficiency.

[0027] Embodiment 2 As Figures 4-6 shown, among which the same or corresponding components as those in Embodiment 1 adopt the corresponding reference numerals in Embodiment 1. For the sake of simplicity, only the differences from Embodiment 1 will be described below. The difference between this Embodiment 2 and Embodiment 1 lies in: This embodiment provides a splicing type motor stator processing device, and specifically, a kind of tooling can be selected, including: a base 15, a core mold 12 arranged on the base 15, and a plurality of positioning components arranged outside the core mold 12. The positioning components include: a support seat 14 slidably connected to the base 15 and a support block 11 arranged on one side of the support seat 14. The outer side surface of the stator core unit 2 abuts against the outer side surface of the support block 11, and its inner side surface abuts against the outer side surface of the core mold 12.

[0028] Among them, the number of the support blocks 11 is the same as that of the stator core units 2, and they are in one-to-one correspondence and abut against each other, so that each stator core unit 2 can be kept stable and there will be no position offset during installation.

[0029] At the same time, the support blocks 11 are circumferentially distributed on the outer periphery of the core mold 12, that is, to ensure concentricity between the two, so that the inner and outer circles of the stator can be kept concentric, and there is no need to separately perform a roundness correction operation on the stator, which is convenient to use.

[0030] In this embodiment, the support block 11 is arranged on the support seat 14 of the tooling 1. One end of the support seat 14 is slidably connected to the base 15 of the tooling 1, and the other end is used to adjust the position of the support block 11 on the support seat 14 through a first fastener 16. Both can be adjusted by bolts. By controlling the bolts, the movement of the support seat 14 and the support block 11 can be realized, which can adapt to the production requirements of stators of different specifications, ensure the stability of the stator core unit 2 during installation, and has a wide application range.

[0031] In this embodiment, the support seat 14 adjusts its position on the base 15 through a second fastener 17, and the first fastener 16 and the second fastener 17 do not interfere with each other.

[0032] In this embodiment, the outer wall shape of the support block 11 is adapted to the outer wall shape of the stator core unit 2, and is preferably arc-shaped, that is, it increases the stress area, makes the stator core unit 2 keep stable, and does not cause wear to the outer diameter surface of the stator core unit 2, ensuring the processing quality.

[0033] In this embodiment, a plurality of guide posts 18 are arranged between the support block 11 and the support seat 14. The guide posts 18 are preferably two. They not only play a supporting role, but also can limit the moving direction of the support seat 14, can ensure the stability of the movement of the support seat 14, ensure that it always moves along the predetermined direction (front-back direction), and there will be no position offset in the left-right direction, greatly improving the stability and precision of the support block 11, ensuring that the outer diameter of the stator can be uniformly stressed, and thus meeting the actual use requirements.

[0034] Of course, the core mold 12 is of a split structure, specifically a two-piece type, which can conveniently position and support the stator from both sides, facilitating installation and disassembly, improving work efficiency. The split design allows for local adjustment of the stator during the splicing process to ensure the concentricity and roundness of the stator. Moreover, a fixing plate 121 for fixing is provided at the top of the core mold 12 to further enhance the stability and firmness of the core mold 12. The two can be fixed with bolts. The core mold 12 is arranged on the installation table 151 in the middle of the base 15, and the two can be fixed with bolts or dowel pins. The installation table 151 is preferably of a double-ring structure with two rings. The inner ring is used to receive the core mold 12, and the outer circle is used to receive the stator, which can maximize the stability of the stator.

[0035] In addition, the processing equipment can first adjust all the support blocks 11 into a standard circle and adjust the core mold 12 to be concentric with the support blocks 11, and then splice the multiple stator core units 2 in sequence, so that the formed stator does not need to be roundness-corrected, reducing unnecessary operations, being convenient to use and having high work efficiency.

[0036] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A method for assembling a spliced ​​motor stator, characterized in that: The following steps are involved: Step 1: Position the outer circle of the stator, adjust the position of the support block on the tooling, and adjust the plurality of support blocks of the tooling in sequence until the outer wall size of the support block is fully matched with the outer wall size of the required stator; Step 2: Position the inner circle of the stator, install the core mold in the middle of the tooling, and set it on the inner side of the support block, and then adjust the position of the core mold so that its outer wall size matches the required inner wall size of the stator and fix it; Step 3: installing a single stator core unit, aligning a stator core unit with one of the support blocks and inserting it into the installation area formed between the core mold and the support block, so that the outer wall of the stator core unit abuts against the outer wall of the support block, and the inner wall of the stator core unit abuts against the outer wall of the core mold; Step 4: Stator splicing and forming: inserting multiple stator core units into the installation area in sequence, and radially splicing two adjacent stator core units, and forming the required stator after cyclic operation.

2. The method for assembling a spliced ​​motor stator according to claim 1, characterized in that: A single stator core unit is provided with a protrusion on one side and a groove on the other side, and the groove of one of the stator core units is correspondingly inserted into the protrusion of the installed stator core unit or the protrusion of one of the stator core units is correspondingly inserted into the groove of the installed stator core unit.

3. The method for assembling a spliced ​​motor stator according to claim 2, characterized in that: The shape of the protrusion matches the shape of the groove.

4. The method for assembling a spliced ​​motor stator according to claim 1, characterized in that: The support blocks are circumferentially distributed on the outer periphery of the core mold.

5. The method for assembling a spliced ​​motor stator according to claim 4, characterized in that: The support block is arranged on the support seat of the tooling.

6. The method for assembling a spliced ​​motor stator according to claim 5, characterized in that: One end of the support seat is slidably connected to the base of the tooling, and the other end is used to adjust the position of the support block on the support seat through a first fastener.

7. The method for assembling a spliced ​​motor stator according to claim 6, characterized in that: The support seat adjusts its position on the base through a second fastener.

8. The method for assembling a spliced ​​motor stator according to claim 5, characterized in that: The outer wall shape of the support block is matched with the outer wall shape of the stator core unit.

9. The method for assembling a spliced ​​motor stator according to claim 5, characterized in that: A plurality of guide columns are arranged between the support block and the support seat.

10. The method for assembling a spliced ​​motor stator according to claim 1, characterized in that: The core mold is a split structure.

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