Single-tooth concentrated winding stator coil punching sheet high-efficiency stacking clamp

Abstract

The utility model provides a single-tooth concentrated winding stator coil punching sheet high-efficiency stacking clamp comprising a pedestal, the bottom of the pedestal is provided with a groove, and a stator punching sheet is arranged above the pedestal; the positioning mechanism is arranged on the base and is used for positioning the stator punching sheet; the surfaces of the guide rods are in threaded connection with locking nuts on the top of the upper pressing plate. A positioning mechanism is arranged, a supporting rod penetrates out of the bottom of a base, the top of a supporting block is attached to the bottom of the base, so that the supporting rod is fixed through the base, a limiting rod of the corresponding model is selected according to the model of the stator punching sheet, a positioning clamping strip corresponds to an inner notch, and the stator punching sheet is positioned through the positioning clamping strip and the limiting rod; after the stator punching sheets are stacked, the upper pressing plate is inserted into the surface of the guide rod, so that the upper pressing plate is attached to the tops of the stator punching sheets, the locking nut is screwed to fix the position of the upper pressing plate, and therefore the stator punching sheets are clamped through the base and the upper pressing plate.

Description

Technical Field

[0001] This utility model relates to the field of stacking fixture technology, specifically to a high-efficiency stacking fixture for single-tooth concentrated winding stator coil laminations. Background Technology

[0002] In the motor manufacturing industry, since the stator core of a motor is made of stacked silicon steel sheets, the stator laminations need to be stacked and pressed together during the manufacturing process. The traditional winding process was done manually, which had relatively relaxed requirements. With the development of automated manufacturing, winding machines have replaced manual winding. However, winding machines have much higher requirements for the straightness of the slots in the core products. Therefore, it is necessary to solve the problem of the straightness of the slots after the motor stator core is stacked.

[0003] Chinese patent CN202322533278.2 discloses a stator lamination stacking fixture, belonging to the field of motor manufacturing technology. It includes an upper cover, a base plate, and studs. The studs are located between the upper cover and the base plate, connecting them. The upper cover and base plate are parallel. The studs also include positioning posts and positioning plates. The positioning posts have positioning grooves, and the positioning plates include flanges and webs. The flanges engage with the positioning grooves, and the webs engage with the inner holes of the stator laminations. This device, through the engagement of the webs on the positioning plates with the inner holes of the stator laminations, achieves the limiting function of the positioning posts on the stator laminations, avoiding dimensional deviations caused by circumferential misalignment of the stator laminations, and providing assurance for subsequent motor assembly. However, the following drawbacks still exist:

[0004] The fixed dimensions of the positioning posts and positioning plates make it inconvenient to stack and position stator laminations of different models and sizes, resulting in poor applicability and room for improvement. Utility Model Content

[0005] The present invention aims to solve the problems mentioned in the background art by providing a high-efficiency stacking fixture for single-tooth concentrated winding stator laminations.

[0006] The specific technical solution is as follows:

[0007] A high-efficiency stacking fixture for single-tooth concentrated winding stator coil laminations includes: a base with a groove at the bottom and a stator lamination disposed on the top of the base; a positioning mechanism disposed on the base for positioning the stator laminations; a guide rod inserted into the base, an upper pressure plate slidably connected to the surface of the guide rod above the stator laminations, and a locking nut threadedly connected to the top of the upper pressure plate on the surface of the guide rod.

[0008] The above-mentioned high-efficiency stacking fixture for stator coil laminations includes a positioning mechanism comprising a support rod inserted into the top of a base, the support rod having symmetrically arranged protrusions on its surface, a through groove with the same shape as the support rod and protrusions on the base, and a support block fixedly connected to the bottom of the support rod.

[0009] The above-mentioned high-efficiency stacking fixture for stator coil laminations includes: a limiting rod sleeved on the outer surface of the support rod; a limiting groove of the same size as the protrusion on the inner wall of the limiting rod; and a positioning clip inserted into the outer surface of the limiting rod.

[0010] The above-mentioned high-efficiency stacking fixture for stator laminations includes: the positioning clips corresponding to the inner grooves opened on the surface of the stator laminations, and the outer wall diameter of the limiting rod corresponding to the minimum diameter of the stator laminations.

[0011] The above-mentioned high-efficiency stacking fixture for stator coil laminations includes: multiple through holes on the surface of the stator laminations, and multiple insertion holes evenly distributed on the top of the base.

[0012] The above-mentioned high-efficiency stacking fixture for stator coil laminations includes: a fixing block fixedly connected to the bottom of the guide rod, and a through groove opened at the center of the surface of the upper pressure plate.

[0013] In the above-mentioned high-efficiency stacking fixture for stator coil lamination, the bottoms of the fixing block and the support block are flush with the bottom of the base.

[0014] This utility model has the following beneficial effects:

[0015] A positioning mechanism is installed, through which the support rod extends from the bottom of the base, so that the top of the support block fits against the bottom of the base, thereby fixing the support rod in place. A corresponding limiting rod is selected based on the stator lamination model, aligning the positioning strip with the inner groove. The positioning strip and limiting rod position the stator lamination, facilitating its stacking. After stacking, the upper pressure plate is inserted onto the guide rod surface, fitting against the top of the stator lamination. The locking nut is tightened to fix the position of the upper pressure plate, thus clamping the stator lamination between the base and the upper pressure plate. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of a high-efficiency stacking fixture for single-tooth concentrated winding stator coil laminations provided in this embodiment of the utility model;

[0017] Figure 2 A schematic diagram of the bottom structure of the base of a high-efficiency stacking fixture for single-tooth concentrated winding stator coil laminations provided in this embodiment of the present invention;

[0018] Figure 3A schematic diagram of the positioning mechanism in a high-efficiency stacking fixture for single-tooth concentrated winding stator laminations provided in this embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of the base structure in a high-efficiency stacking fixture for single-tooth concentrated winding stator laminations provided in an embodiment of the present invention.

[0020] In the attached image:

[0021] 1. Base; 2. Groove; 3. Positioning mechanism; 301. Support block; 302. Support rod; 303. Protrusion; 304. Limiting rod; 305. Limiting groove; 306. Positioning clip; 4. Fixing block; 5. Guide rod; 6. Locking nut; 7. Upper pressure plate; 8. Through groove; 9. Insertion hole; 10. Stator lamination; 11. Outer groove; 12. Inner groove; 13. Through hole. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0024] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0025] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example

[0027] This embodiment provides a high-efficiency stacking fixture for single-tooth concentrated winding stator coil laminations, such as... Figures 1-4 As shown, it includes: a base 1, with a groove 2 at the bottom of the base 1, and a stator lamination 10 on the top of the base 1; a positioning mechanism 3, which is set on the base 1 and is used to position the stator lamination 10; a guide rod 5 is inserted into the base 1, and an upper pressure plate 7 is slidably connected to the surface of the guide rod 5 above the stator lamination 10, and a locking nut 6 is threadedly connected to the top of the upper pressure plate 7 on the surface of the guide rod 5.

[0028] A high-efficiency stacking fixture for single-tooth concentrated winding stator coil laminations, employing the above-mentioned technical solution, is equipped with a positioning mechanism 3. A support rod 302 extends from the bottom of the base 1, causing the top of the support block 301 to fit against the bottom of the base 1, thereby fixing the support rod 302 to the base 1. A corresponding limiting rod 304 is selected according to the model of the stator lamination, so that the positioning strip 306 corresponds to the inner groove 12. The stator lamination 10 is positioned by the positioning strip 306 and the limiting rod 304, facilitating the stacking of the stator laminations. After stacking, the upper pressure plate 7 is inserted onto the surface of the guide rod 5, so that the upper pressure plate 7 fits against the top of the stator lamination 10. The locking nut 6 is tightened to fix the position of the upper pressure plate 7, thereby clamping the stator lamination 10 between the base 1 and the upper pressure plate 7.

[0029] To limit the installation of the support rod 302 and facilitate the fixing of different models of limit rods 304, thereby stacking different models of stator laminations 10, the positioning mechanism 3 includes a support rod 302 inserted into the top of the base 1. The surface of the support rod 302 is symmetrically provided with protrusions 303. The base 1 has a through groove with the same shape as the support rod 302 and the protrusions 303. A support block 301 is fixedly connected to the bottom of the support rod 302.

[0030] To accommodate different stator laminations 10, a limiting rod 304 is installed for limiting. The limiting rod 304 is sleeved on the outer surface of the support rod 302. The inner wall of the limiting rod 304 has a limiting groove 305 with the same size as the protrusion 303. A positioning clip 306 is inserted into the outer surface of the limiting rod 304.

[0031] To limit the stator lamination 10 by using the positioning strip 306 and ensure that the stator lamination 10 is in a straight line, the positioning strip 306 is set to correspond to the inner groove 12 opened on the surface of the stator lamination 10, and the outer diameter of the limiting rod 304 is set to correspond to the minimum diameter of the stator lamination 10.

[0032] To further accommodate different models of stator laminations 10, multiple through holes 13 are formed on the surface of the stator laminations 10, and multiple insertion holes 9 are evenly formed on the top of the base 1. A positioning rod is inserted into the corresponding insertion hole 9, aligning the insertion hole 9 with the through hole 13, thereby positioning the stator laminations 10. This allows for the positioning and stacking of stator laminations 10 of different models, improving applicability.

[0033] To better secure the guide rod 5, a fixing block 4 is fixedly connected to the bottom of the guide rod 5, and a through groove 8 is provided in the center of the surface of the upper pressure plate 7.

[0034] To ensure the stability of the guide rod 5 and the support rod 302, the bottoms of the fixing block 4 and the support block 301 are flush with the bottom of the base 1. The base 1 presses the fixing block 4 and the support block 301 together, thereby fixing the guide rod 5 and the support rod 302.

[0035] In summary, the single-tooth concentrated winding stator coil lamination high-efficiency stacking fixture provided in this embodiment has the following advantages: a positioning mechanism 3 is provided, through which the support rod 302 extends from the bottom of the base 1, so that the top of the support block 301 fits against the bottom of the base 1, thereby fixing the support rod 302 on the base 1. The corresponding model of the limiting rod 304 is selected according to the model of the stator lamination, so that the positioning strip 306 corresponds to the inner groove 12. The stator lamination 10 is positioned by the positioning strip 306 and the limiting rod 304, which facilitates the stacking of the stator lamination 10 and aligns the outer groove 11 on the outside of the stator lamination 10. After stacking, the upper pressure plate 7 is inserted into the surface of the guide rod 5, so that the upper pressure plate 7 fits against the top of the stator lamination 10. The locking nut 6 is tightened to fix the position of the upper pressure plate 7, thereby clamping the stator lamination 10 on the base 1 and the upper pressure plate 7.

[0036] In use, the support rod 302 is passed through the bottom of the base 1, so that the top of the support block 301 fits against the bottom of the base 1, thereby pressing and fixing the support block 301 and limiting the support rod 302. A corresponding limiting rod 304 is selected according to the model of the stator lamination 10, and the limiting rod 304 is fixed by the cooperation of the limiting groove 305 and the protrusion 303. The positioning strip 306 is aligned with the inner groove 12, and the stator lamination 10 is positioned by the positioning strip 306 and the limiting rod 304, facilitating the stacking of the stator laminations 10. The upper pressure plate 7 is pressed against the top of the stator lamination 10 by the cooperation of the locking nut 6 and the upper pressure plate 7, clamping the stator lamination 10.

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high efficiency stacking jig for single tooth concentrated winding stator coil sheet, characterized in that, include: The base (1) has a groove (2) at the bottom and a stator lamination (10) on the top of the base (1). The positioning mechanism (3) is set on the base (1) and is used to position the stator lamination (10); A guide rod (5) is inserted into the base (1). The surface of the guide rod (5) is slidably connected to an upper pressure plate (7) above the stator lamination (10). A locking nut (6) is threadedly connected to the top of the upper pressure plate (7) on the surface of the guide rod (5).

2. The stator coil lamination efficient stacking fixture of claim 1 wherein, The positioning mechanism (3) includes a support rod (302) inserted into the top of the base (1). The support rod (302) has symmetrically arranged protrusions (303) on its surface. The base (1) has a through groove with the same shape as the support rod (302) and protrusions (303). The bottom of the support rod (302) is fixedly connected to a support block (301).

3. The stator coil lamination efficient stacking fixture of claim 2 wherein, The support rod (302) is sleeved with a limiting rod (304) on its outer surface. The inner wall of the limiting rod (304) is provided with a limiting groove (305) of the same size as the protrusion (303). A positioning clip (306) is inserted into the outer surface of the limiting rod (304).

4. The high-efficiency stacking fixture for stator coil laminations according to claim 3, characterized in that, The positioning strip (306) is correspondingly set to the inner groove (12) opened on the surface of the stator lamination (10), and the outer wall diameter of the limiting rod (304) is correspondingly set to the minimum diameter of the stator lamination (10).

5. The stator coil lamination efficient stacking fixture of claim 3 wherein, The stator lamination (10) has multiple through holes (13) on its surface, and the base (1) has multiple insertion holes (9) evenly distributed on its top.

6. The stator coil lamination efficient stacking fixture of claim 2 wherein, The bottom of the guide rod (5) is fixedly connected to a fixing block (4), and a through groove (8) is provided in the center of the surface of the upper pressure plate (7).

7. The high-efficiency stacking fixture for stator coil laminations according to claim 6, characterized in that, The bottom of both the fixing block (4) and the support block (301) are flush with the bottom of the base (1).

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