Iron core stacking device

Abstract

The utility model provides an iron core stacking device, which is used for processing an iron core and comprises a core shaft part, a pressing plate piece which is arranged at one end of the iron core and is connected with one end of the core shaft part, a pushing plate piece which is arranged at the other end of the iron core and is sleeved on the core shaft part, and a plurality of inserts which are arranged on the pushing plate piece and are fixedly connected with the pressing plate piece. The iron core clamping tool has the advantages that the iron core is high in precision and easy to control in quality through the multiple metal part clamping tools, the iron core is formed through high-temperature baking, production efficiency is improved, and cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of tooling, especially to a laminated core device. BACKGROUND

[0002] The stator core is an important component in the motor to form a magnetic flux loop and fix the coil. In the actual production process of the stator core, all the silicon steel sheets required by a stator are first spliced to form a circle, and then the links of each silicon steel sheet are welded, and finally the corresponding stator core is formed. Therefore, additional tooling equipment and welding equipment are required, which increases the production cost. However, the process and tooling during welding of the stator core are difficult to guarantee consistency, which leads to different stresses at different welds of the stator core, affecting the concentricity of the stator core, thereby increasing the cogging torque and torque fluctuation of the motor, and reducing the use precision of the motor. Similar technology can be referred to in Chinese patent for invention CN105529851A, and thus it is necessary to improve. SUMMARY

[0003] The utility model discloses a laminated core device, the precision of the core is higher and the quality is easy to control, and the core is high-temperature baked into shape, improves production efficiency and reduces cost.

[0004] To achieve the purpose of the utility model, the first technical solution provided by the utility model is a laminated core device for processing a core, which comprises a mandrel part, a pressing plate part arranged at one end of the core and connected to one end of the mandrel part, a push plate part arranged at the other end of the core and sleeved on the mandrel part, and a plurality of inserts arranged on the push plate part and fixedly connected to the pressing plate part.

[0005] On the basis of the above technical solution, the following subsidiary technical solutions are further included.

[0006] Further, the insert comprises an insert embedding part and an insert fixing part located at the bottom of the insert embedding part.

[0007] Further, the pressing plate part comprises a plurality of limiting grooves located on the circumferential side of the pressing plate part, wherein the limiting grooves are correspondingly arranged with the inserts, and the insert embedding part at least partially extends into the limiting grooves and fixes the pressing plate part.

[0008] Further, the push plate part comprises a plurality of insertion holes arranged at intervals in the circumferential direction, wherein the insert fixing part is inserted into the corresponding insertion hole.

[0009] Further, the mandrel part comprises a base, a columnar part located on the base, and a shaft part located on the columnar part, wherein the diameter of the columnar part is greater than the diameter of the shaft part and smaller than the diameter of the base.

[0010] Further, the nut is fixedly connected with the shaft-shaped piece and located on the pressing plate.

[0011] Further, the diameter of the pushing plate is larger than that of the pressing plate.

[0012] Further, the pressing plate further comprises a pressing plate center hole located at the center, and the pushing plate comprises a pushing plate hole located at the center, wherein the diameter of the pushing plate hole is larger than that of the columnar piece.

[0013] Further, the iron core is circumferentially spaced by a plurality of iron core pieces and is formed by high-temperature baking, and the iron core comprises an iron core cavity located at the center and in a circular shape, and a plurality of iron core gaps located circumferentially.

[0014] Further, the inlay fixing part is located outside the base.

[0015] Compared with the prior art, the utility model has the following positive effects: the precision of the iron core is high and the quality is easy to control through the plurality of metal part clamping tooling, and the iron core is formed by high-temperature baking, production efficiency is improved, and cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 It is a perspective view of the utility model;

[0018] Figure 2 It is a front view of the utility model;

[0019] Figure 3 It is a top view of the utility model;

[0020] Figure 4 It is a sectional view of the utility model;

[0021] Figure 5 It is an exploded view of the utility model. DETAILED DESCRIPTION

[0022] In the description of the utility model, it needs to explain that, unless otherwise stated, the meaning of "multiple" is two or more than two;The orientation or position relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the utility model, it also needs to explain that, unless otherwise stated and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] The specific embodiments of the utility model will be further described in detail below in combination with the drawings.

[0025] Embodiment: as Figures 1-5 The utility model discloses an embodiment of a laminated core device for processing core 400, which comprises: core shaft part 100, pressing plate part 200 arranged at one end of core 400 and connected with one end of core shaft part 100, push plate part 300 arranged at the other end of core 400 and sleeved on core shaft part 100, and a plurality of inserts 500 arranged on push plate part 300 and fixedly connected with pressing plate part 200.

[0026] The core shaft part 100 comprises a circular base 120, a columnar part 140 on the base 120 and a shaft part 160 on the columnar part 140, wherein the diameter of the columnar part 140 is greater than the diameter of the shaft part 160 and less than the diameter of the base 120. Preferably, the shaft part 160 is threadedly fixed with a nut. The core shaft part 100 is a ground metal part, and the machining precision can be ensured.

[0027] The pressing plate part 200 comprises a pressing plate part center hole 220 in the center and a plurality of limiting grooves 240 on the periphery, wherein the limiting grooves 240 are correspondingly arranged with the inserts 500. The pressing plate part 200 is a ground metal part.

[0028] The push plate 300 comprises a push plate hole 320 in the center and a plurality of insertion holes 340 arranged circumferentially at intervals.

[0029] The iron core 400 is formed by a plurality of iron core segments arranged circumferentially at intervals and high-temperature baking, and comprises an iron core cavity 420 in the center and a plurality of iron core gaps 440 arranged circumferentially.

[0030] The insert 500 comprises an insert embedding part 520 and an insert fixing part 540 at the bottom of the insert embedding part 520. The insert embedding part 520 at least partially extends into the iron core gap 440 and the limiting groove 240 and fixes the pressing plate 200, and the pressing plate 200 covers the upper end of the iron core cavity 420. The insert fixing part 540 is inserted into the corresponding insertion hole 340, so that the insert 500 fixes the pressing plate 200, the push plate 300 and the iron core 400 in the axial direction. The insert fixing part 540 is located outside the base 120. The insert 500 is a machined part.

[0031] The nut 600 is located above the pressing plate 200 and is fixed in threaded cooperation with the shaft-shaped part 160, wherein the shaft-shaped part 160 passes through the push plate center hole 320, the iron core cavity 420 and the pressing plate center hole 220, and is finally screwed and fixed with the nut 600.

[0032] Therefore, since each part is a machined metal part, the roughness and concentricity of the upper and lower end faces of the iron core 400 can be ensured, and since the iron core 400 is high-temperature baked and formed, the production efficiency is improved and the cost is reduced.

[0033] The utility model has the following positive effects: through a plurality of metal parts clamping tooling, the precision of the iron core is higher and the quality is easy to control, and the iron core is high-temperature baked and formed, the production efficiency is improved, and the cost is reduced.

[0034] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A stacked core device for machining a core (400), characterized by It includes: The core shaft part (100), the pressing plate part (200) arranged at one end of the iron core (400) and connected with one end of the core shaft part (100), the push plate part (300) arranged at the other end of the iron core (400) and sleeved on the core shaft part (100), and the plurality of inserts (500) arranged on the push plate part (300) and fixedly connected with the pressing plate part (200).

2. The lamination core device according to claim 1, characterized by: The insert (500) includes an insert embedding part (520) and an insert fixing part (540) at the bottom of the insert embedding part (520).

3. The laminated core device according to claim 2, characterized by: The pressing plate part (200) includes a plurality of limiting grooves (240) on the periphery, wherein the limiting grooves (240) are correspondingly arranged with the corresponding inserts (500), and the insert embedding part (520) at least partially extends into the limiting groove (240) and fixes the pressing plate part (200).

4. The lamination core device according to claim 3, characterized by: The push plate part (300) includes a plurality of insertion holes (340) arranged at intervals in the circumferential direction, wherein the insert fixing part (540) is inserted into the corresponding insertion hole (340).

5. The lamination core device according to claim 2 or 3 or 4, characterized by: The core shaft part (100) includes a base (120), a columnar part (140) on the base (120), and a shaft part (160) on the columnar part (140), wherein the diameter of the columnar part (140) is greater than the diameter of the shaft part (160) and less than the diameter of the base (120).

6. The laminated core device according to claim 5, characterized by It also includes a nut (600) arranged on the pressing plate part (200) and fixedly connected with the shaft part (160).

7. The lamination core device according to claim 6, characterized by: The diameter of the push plate part (300) is greater than the diameter of the pressing plate part (200).

8. The laminated core device according to claim 7, characterized by: The pressing plate part (200) further includes a pressing plate part center hole (220) at the center, and the push plate part (300) includes a push plate part hole (320) at the center, wherein the diameter of the push plate part hole (320) is greater than the diameter of the columnar part (140).

9. The laminated core device according to claim 5, characterized by: The iron core (400) is formed by a plurality of iron core flakes arranged at intervals in the circumferential direction and baked at high temperature, and it includes an iron core cavity (420) at the center and in a circular shape, and a plurality of iron core gaps (440) in the circumferential direction.

10. The laminated core device according to claim 5, characterized by: The insert fixing part (540) is located outside the base (120).

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