A device for lamination of motor stator sheets

Abstract

The utility model belongs to motor design technical field discloses a device for motor stator punching piece lamination. Including: tight screw, upper plate, stand, briquetting, backing plate, slotted taper end tight screw, bottom plate, screw, positioning shaft, the backing plate contains upper backing plate and lower backing plate, wherein, positioning shaft is fixed on the bottom plate through the screw, and the upper backing plate and the lower backing plate fix and hold motor stator punching piece on the positioning shaft, and the bottom plate circumference is connected with the upper plate through three stands, and the tight screw one end is pressed on the briquetting, can effectively solve the problem of motor stator punching piece lamination, plays an important role to new product development and small -batch motor production and manufacture.

Description

Technical Field

[0001] This utility model belongs to the field of motor design technology, and in particular relates to a device for stacking stator laminations of motors. Background Technology

[0002] With the improvement of industrial level, the application of electric motors is becoming more and more widespread. At present, in the process of electric motor manufacturing, the lamination of stator components is the initial assembly process, and the required process equipment is the first one. Traditional lamination equipment is specially made for a specific motor, requiring a large number of equipment parts, with a long manufacturing cycle, consuming materials and labor hours, and affecting the product manufacturing cycle and delivery time. Traditional lamination fixtures use three nuts for clamping, which can result in different clamping heights of the three nuts, leading to inconsistent stator component heights after lamination.

[0003] For mass production of motors, advanced technologies such as high-speed stamping equipment can be used. However, the cost of such equipment and the required composite molds is high, making it unsuitable for new product development and small-batch motor production. Utility Model Content

[0004] This invention provides a device for stacking stator laminations of motors, which can effectively solve the problem of stacking stator laminations of motors and plays an important role in the development of new products and the production of small batches of motors.

[0005] An apparatus for stacking stator laminations of an electric motor, the apparatus comprising: Set screw, upper plate, column, pressure block, pad, slotted conical set screw, base plate, screw, positioning shaft; the pad includes an upper pad and a lower pad; The positioning shaft is fixed to the base plate with screws. The upper and lower pads fix and clamp the motor stator laminations on the positioning shaft. The circumference of the base plate is connected to the upper plate through three columns. One end of the set screw is pressed against the pressure block.

[0006] Furthermore, The set screw has a spherical head, which allows it to fit against the inner hole mounting surface of the pressure block during tightening.

[0007] Furthermore, The column is a stepped column, and the upper plate is provided with two different sizes of U-shaped grooves. The larger U-shaped groove is used to screw into the stepped surface of the column, and the smaller U-shaped groove is used to fix the upper plate to the stepped surface of the column.

[0008] Furthermore, The positioning axis has a circular cross-section, and a protruding part is provided at a symmetrical position on the circular cross-section for angular positioning of the electronic stator lamination.

[0009] Furthermore, The pad has three notches evenly distributed around its circumference to expose the welding grooves of the motor stator laminations.

[0010] Furthermore, The device further includes: a demolding component consisting of an upper ejector rod and an upper ejector plate, and a demolding bracket consisting of a lower ejector rod and a lower ejector plate.

[0011] Furthermore, After removing the set screws, upper plate, pressure block, and upper pad, the device is placed upside down on the demolding bracket. The demolding component pushes down the pad to demold the motor stator laminations.

[0012] This utility model provides a device for stacking motor stator laminations. The stacking device is easy to operate and has low manufacturing cost. The upper and lower pads of the stacking device have three notches, which can be used for welding processes after stacking. This can reduce the number of process equipment, prevent errors caused by secondary clamping, and improve production efficiency and stability of motor stator components. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a device for stacking stator laminations of an electric motor provided by this utility model; Figure 2 yes Figure 1 A cross-sectional view of surface AA; Figure 3 This is a schematic diagram of the disassembly of a device used for stacking stator laminations in a motor. Figure 4 This is a schematic diagram of the upper plate of a device for stacking stator laminations of an electric motor; Explanation of icon numbers: 1. Small hexagonal head threaded set screw; 2. Upper plate; 3. Column; 4. Pressure block; 5. Washer plate; 6. Slotted conical set screw; 7. Base plate; 8. Screw; 9. Positioning shaft; 10. Upper push rod; 11. Upper top plate; 12. Lower push rod; 13. Lower top plate; 51. Upper washer plate; 52. Lower washer plate. Detailed Implementation

[0014] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings.

[0015] This invention provides a device for stacking stator laminations of motors, which can effectively solve the problem of stacking stator laminations of motors and plays an important role in the development of new products and the production of small batches of motors.

[0016] This utility model provides a device for stacking stator laminations of a motor, comprising: a small hexagonal head threaded set screw 1, an upper plate 2, a column 3, a pressure block 4, a pad 5, a slotted conical end set screw 6, a base plate 7, a screw 8, a positioning shaft 9, an upper push rod 10, an upper top plate 11, a lower push rod 12, and a lower top plate 13; the pad 5 includes an upper pad 51 and a lower pad 52; wherein, Using the device described in this application, tightening the center small hexagonal head threaded set screw 1 presses the stator lamination (such as...). Figure 1 As shown in the figure, it can be clamped by tightening the screw once. The operation is simple, which can reduce the labor intensity of the operator, improve the work efficiency, and the central force clamping can ensure that the height is consistent.

[0017] The main function of the small hexagonal head threaded end set screw 1 is to fix the relative position of the pressure block 4 and prevent loosening caused by vibration or impact.

[0018] Among them, the screw head of the small hexagonal head threaded end set screw 1 is spherical, which allows the set screw 1 to better fit the inner hole mounting surface of the pressure block 4 during the tightening process, providing a more uniform tightening force to the pressure block 4, ensuring the stability and reliability of the connection, reducing the non-perpendicularity problem caused by angle issues, and better pressing the mating surface of the pressure block 4, thereby ensuring its stable operation.

[0019] The upper plate 2 (e.g.) Figure 4 As shown, two different sized U-shaped grooves are screwed into the step of the force column 3 for connection and fixation. This structural design not only simplifies the clamping and disassembly process, improves efficiency and clamping reliability, but also ensures the stability of the stator laminations during the stacking process.

[0020] The positioning shaft 9 (e.g.) Figure 2 The irregular shape (as shown) is for the positioning of stator laminations. It adopts center positioning, and the protruding parts on both sides are used for angular positioning of stator laminations. This design can make the stator laminations accurately positioned, neatly stacked, and ensure their high precision and stable performance.

[0021] The positioning shaft 9 (e.g.) Figure 1 As shown, the fixture uses 8 screws for connection, rather than a fixed type, which can be used to replace positioning shafts of different sizes, thus achieving the versatility of the fixture, reducing tooling manufacturing costs and manufacturing cycle, and improving motor production efficiency.

[0022] The upper pad 51 and lower pad 52 are used for pressing during the stacking process of motor stator laminations to prevent wear on the base plate 7 and pressure block 4 during long-term use. The use of upper pad 51 and lower pad 52 facilitates the replacement of the base plate 7 and pressure block 4 after wear.

[0023] Due to the special structure of the stator laminations, directly using the demolding parts to push up the stator laminations during disassembly can deform the stacked stator assembly, rendering it unusable. Using a lower shim 52 during disassembly can prevent damage to the stator laminations.

[0024] The upper pad 51 and the lower pad 52 each have three notches on their circumference (e.g., Figure 2 As shown, the notch is used to expose the welding groove of the motor stator lamination, which facilitates the welding process after the stator laminations are stacked. It can reduce the number of tooling and prevent errors caused by secondary clamping, which would affect product quality and production efficiency.

[0025] The column 3 is a stepped column, and the large U-shaped groove on the pressure plate 2 is aligned with the column 3 for insertion (e.g., ...). Figure 1 As shown), rotate the pressure plate 2 counterclockwise so that the small U-shaped groove on the pressure plate 2 is engaged at the step of the column to achieve a fixing effect. This structural design makes installation and disassembly convenient and quick.

[0026] The three columns 3 are evenly distributed and installed on the base plate 7. The slotted cone-end set screws 6 are screwed into the bottom surface of the base plate 7 to connect and fix the base plate 7 and the columns 3 to prevent them from loosening.

[0027] The upper ejector rod 10 and upper ejector plate 11 form a demolding component. Due to the creeping and displacement between the stator laminations after stacking and pressing, they adhere tightly to the positioning shaft 9, making disassembly difficult. The demolding component facilitates the removal of the stacked stator laminations from the positioning shaft 9. The importance of demolding is self-evident; successful demolding ensures the quality and production efficiency of the stator laminations, while failed demolding can result in serious losses such as scrapped stator laminations.

[0028] The lower ejector rod 12 and the lower ejector plate 13 together form a demolding bracket, which is mainly used to support the stacking device and facilitate the demolding components to disassemble the stator laminations. The demolding components and the demolding bracket complement each other to ensure a smooth and efficient process for disassembling the stator laminations.

[0029] This utility model provides an embodiment of a device for stacking stator laminations of a motor, such as... Figure 1-4 As shown, it includes: a small hexagonal head threaded end set screw 1, an upper plate 2, a column 3, a pressure block 4, a pad 5, a slotted conical end set screw 6, a base plate 7, a screw 8, a positioning shaft 9, an upper push rod 10, an upper top plate 11, a lower push rod 12, and a lower top plate 13.

[0030] The stacking process involves first inserting the pad 5 into the positioning shaft 9, then neatly inserting the motor stator laminations into the positioning shaft 9 according to the quantity required by the design drawings, and then covering them with the pad 5. Finally, the upper plate 2 is placed on top, and the large U-shaped groove on the upper plate 2 is aligned with the column 3 and inserted, fitting against the stepped surface of the column 3. The upper plate 2 is rotated counterclockwise so that the small U-shaped groove on the upper plate 2 is engaged at the step of the column 3. Then, the small hexagonal head threaded set screw 1 is tightened, applying a certain force to move the pressure block 4 downward to press the scattered stator laminations together and achieve the stator assembly height required by the drawings. The pressed state is maintained, and then the pressed stator laminations are welded and fixed using laser welding technology to form the stator assembly. The disassembly process is as follows: First, loosen the small hexagonal head threaded set screw 1, causing the pressure block 4 to move upwards. Then, rotate the upper plate 2 clockwise until the large U-shaped groove on the upper plate 2 aligns with the column 3, allowing the clamping component to be removed. Finally, remove components 1, 2, 4, and the upper pad. Place the device on the demolding frame composed of the lower ejector rod 12 and the lower ejector plate 13. After inverting, use the upper ejector rod 10 to push against the lower pad to disassemble the parts (e.g., Figure 3 (As shown).

[0031] 1. For new product development, the required quantity of products is small, the utilization rate of dedicated tooling is low, and the manufacturing cycle is long. By using this stacking device, only the main positioning parts and pads need to be replaced to achieve tooling universality. The tooling manufacturing cost is about 1 / 3 of the previous cost, and the tooling manufacturing cycle only takes 2 days. This not only saves tooling manufacturing costs and shortens the tooling manufacturing cycle, but also improves production efficiency. It is suitable for the production and manufacturing of new products, urgently needed products, and small batches.

[0032] 2. Compared with the current advanced technology of high-speed stamping equipment and composite molds for stamping and stacking stator laminations in the motor manufacturing industry, this stacking fixture has a simple structure, low cost, and is more convenient to operate and maintain.

[0033] 3. The design structure of this stacking device makes it simple and convenient for operators to use, and the time required is about 1 / 3 of that before. This reduces the labor intensity of workers, improves work efficiency and process stability during production, and avoids factors that may affect quality.

Claims

1. An apparatus for stacking stator laminations of an electric motor, characterized in that, The device includes: Set screw (1), upper plate (2), column (3), pressure block (4), pad (5), slotted conical set screw (6), bottom plate (7), screw (8), positioning shaft (9); the pad (5) includes upper pad (51) and lower pad (52); The positioning shaft (9) is fixed to the base plate (7) by screws (8). The upper pad (51) and the lower pad (52) fix the motor stator laminations on the positioning shaft (9). The circumference of the base plate (7) is connected to the upper plate (2) by three columns (3). One end of the set screw (1) is pressed on the pressure block (4).

2. The apparatus for stacking stator laminations of an electric motor according to claim 1, characterized in that, The head of the set screw (1) is spherical, so that the set screw (1) fits against the inner hole mounting surface of the pressure block (4) during the tightening process.

3. The apparatus for stacking stator laminations of an electric motor according to claim 1, characterized in that, The column (3) is a stepped column. The upper plate (2) is provided with two different sizes of U-shaped grooves. The large-sized U-shaped groove is used to screw into the stepped surface of the column (3), and the small-sized U-shaped groove is used to fix the upper plate (2) at the stepped surface of the column (3).

4. The apparatus for stacking stator laminations of an electric motor according to claim 1, characterized in that, The positioning shaft (9) has a circular cross-section, and a protruding part is provided at a symmetrical position of the circular cross-section for angular positioning of the electronic stator lamination.

5. The apparatus for stacking stator laminations of an electric motor according to claim 1, characterized in that, The pad (5) has three notches evenly provided on its circumference to expose the welding grooves of the motor stator laminations.

6. The apparatus for stacking stator laminations of an electric motor according to claim 1, characterized in that, The device further includes: a demolding component consisting of an upper ejector rod (10) and an upper ejector plate (11), and a demolding bracket consisting of a lower ejector rod (12) and a lower ejector plate (13).

7. The apparatus for stacking stator laminations of an electric motor according to claim 6, characterized in that, After removing the set screw (1), upper plate (2), pressure block (4), and upper pad (51), the device is placed upside down on the demolding bracket, and the demolding component pushes down the pad (52) to demold the motor stator lamination.

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