Split type stator core manufacturing device

Abstract

The utility model discloses a split type stator core manufacturing device, which comprises a bottom plate, a cover plate and a stand column connected with the bottom plate and the cover plate, the stand column comprises an inner side surface and an outer side surface which are used for positioning a stator core structure, the outer side surface of the stand column is provided with a counter bore communicated with the inner side surface, the counter bore is provided with a draw-in bolt, and the draw-in bolt is connected with the cover plate. And the tension bolt is connected with the iron core punching sheet structure through the pole rod. According to the utility model, the counter bores are arranged on the outer side surfaces of the stand columns, and the stator iron core is tensioned by the tension bolts, so that the outer circular surfaces of the iron core punching sheets are tightly attached to the inner side surfaces of the stand columns, and therefore, the stator punching sheets are tightly attached to the inner circular surfaces of the stand columns, and are shaped and aligned; it is guaranteed that the iron core punching sheets are tightly attached to the stand columns in the stator iron core manufacturing process, and deformation caused by certain welding stress can be resisted.

Description

Technical Field

[0001] The utility model belongs to the technical field of stator core installation devices, and more specifically, relates to a split-type stator core manufacturing device. Background Art

[0002] In the process of upgrading the motor of a large cargo ship, it is necessary to use the existing shaft of the original motor, and the shaft cannot be moved at will. It is necessary to design a split-type motor to upgrade the existing product. However, how to ensure the uniformity of the slot shape and the high-precision requirements of various shape and position dimension tolerances of the split-type stator core is a technical problem in the transformation.

[0003] In order to solve the problem of poor slot uniformity when the existing fan-shaped punching sheets are stacked on the skew slot stator, CN201910792053.4 discloses a fan-shaped punching sheet skew slot stator core stacking tool, which includes a stacking device, a fixing member, a fastener, an oblique key group, an upper pressing plate, multiple pull rods and multiple fan-shaped pads; the stacking device includes a base, a stacking tire, and a top seat; the stacking tire includes multiple groups of fan-shaped stacking blocks that can be spliced ​​into a ring, one end of the stacking tire is connected to the base, and the other end is connected to the top seat; the base, the stacking tire and the top seat are fixed by a fixing member; the oblique key group is arranged on the outside of the stacking tire along the axial direction of the stacking tire; the fan-shaped pad is installed on the base; the upper pressing plate is arranged close to the end of the stacking tire; the pull rod passes through the upper pressing plate, the top seat and the base and is fixedly connected to the base. This patent uses the oblique key group to accurately position the fan-shaped stator punching sheet, effectively improving the slot uniformity of the stator core. Although this method uses multiple T-shaped oblique keys to adjust the positioning and neatness of the stator punching sheets, the structure of the tooling is relatively complex, the disassembly and assembly process is cumbersome, and it is not convenient to complete the welding operation in the stacking die to reduce the core deformation caused by welding.

[0004] In CN202211490780.3, a stator core manufacturing tool and a stator core manufacturing method are disclosed. The stator core manufacturing tool includes a stacking device, the stacking device includes a bottom plate, a top plate and a stacked body located between the bottom plate and the top plate, the stacking device is provided with a bottom limiting structure at the bottom of the stacked body, and a top limiting structure is provided at the top of the stacked body, the top limiting structure includes a first limiting protrusion and a first limiting recess that fit each other, and the top limiting structure includes a second limiting protrusion and a second limiting recess that fit each other, the first limiting protrusion and the first limiting recess are cooperated to limit the radial movement of the bottom of the stacked body relative to the bottom plate, and the second limiting protrusion and the second limiting recess are cooperated to limit the radial movement of the stacked body relative to the top plate. In this patent, the movement of the stacked body is limited by the limiting mechanisms at the top and bottom. The structure is simple and easy to disassemble. However, this limiting method is not convenient for shaping the outer cylindrical surface of the punch. On the other hand, since the positions of the half-stator core buckles need to be welded, the welding operation cannot be completed in the stacking mold to reduce the deformation of the core caused by welding. Utility Model Content

[0005] The utility model provides a split-type stator core manufacturing device to overcome the problems in the prior art that the stator core tooling is inconvenient for positioning the stator core and is easily deformed during welding.

[0006] The utility model is realized by the following technical solutions:

[0007] A split-type stator core manufacturing device includes a base plate, a cover plate, and columns connecting the base plate and the cover plate, wherein the columns are evenly spaced and installed between the base plate and the cover plate, and the columns include inner and outer sides for positioning the stator core structure, and the outer side of the column is provided with a countersunk hole that penetrates the inner side, and the countersunk hole is provided with a tensioning bolt, and the tensioning bolt is connected to the core punching sheet structure through a pole. The utility model can ensure the size and shape and position tolerance of the outer cylindrical surface of the stator core by tightening the stator core structure on the outer side of the column, and can resist deformation caused by certain welding stress. In addition, the utility model has a simple structure, which is convenient for disassembly and assembly of tooling, and the gap installation between the columns is conducive to the axial welding of the stator core structure.

[0008] Furthermore, the curvature of the inner side surface of the column is the same as the curvature of the outer circumferential surface of the stator core structure, so that the stator core structure can fit closely to the column, thereby playing a certain positioning and shaping role in the outer circumferential radial direction of the stator core structure.

[0009] Furthermore, a positioning mechanism is provided on the inner side surface of the column to facilitate the positioning and installation of the stator core structure.

[0010] Furthermore, the positioning mechanism comprises a positioning key slot on the inner side of the column, and a positioning key is arranged in the positioning key slot.

[0011] Furthermore, a tensioning groove is provided on the stator core structure, and a tensioning structure is provided on one side of the pole to match and connect with the tensioning groove, and the tensioning structure is tightly matched with the core.

[0012] Furthermore, the countersunk hole on the column is aligned with the tensioning groove on the stator core.

[0013] Furthermore, the tensioning groove is arranged in the radial direction or the axial direction of the stator core structure.

[0014] Furthermore, a welding notch is provided at the gap between the cover plate and / or the bottom plate between adjacent columns to facilitate welding of the end face of the stator core structure.

[0015] Furthermore, the stator core structure includes a core punching sheet, a buckle sheet and a pressure ring, the pressure ring includes an upper pressure ring and a lower pressure ring, and the core punching sheet is connected to the upper pressure ring and the lower pressure ring as a whole through the buckle sheet.

[0016] Furthermore, the pressure ring is provided with a notch for welding the stator core clips or tightening the axial screw.

[0017] Furthermore, the split stator core manufacturing device also includes an upper pressing plate and a lower pressing plate, which are respectively connected to the two ends of the stator core structure so that the two halves of the stator core remain as a whole during the stacking process.

[0018] Compared with the prior art, the beneficial effects are:

[0019] The utility model is provided with a through countersunk hole on the outer side of the column, and the stator core is tightened by a tension bolt, so that the outer cylindrical surface of the core punching sheet is tightly fitted with the inner side of the column, which plays a certain positioning and shaping role in the radial direction of the outer cylindrical surface of the core. At the same time, the gap between the columns makes it possible to complete the radial welding operation of the stator core structure in the stacked and non-demolded state, thereby reducing the deformation of the stator core caused by the welding operation. In addition, the utility model is provided with a welding notch at the gap between the cover plate and the bottom plate between the columns, which is convenient for end face welding of the stator core structure. The utility model is provided with connection holes corresponding to the upper and lower pressure rings on the upper and lower pressure plates, which are connected into a whole during the production process of the split stator core, and are used for stator core processing and assembly with the machine base to ensure the overall roundness of the split stator core. The utility model has a simple structure and is easy to disassemble, and the gear position of the welding manufacturing device can be adjusted according to the size of the stator core structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the stator core structure;

[0023] Figure 4 It is a schematic diagram of the stator core punching structure.

[0024] Among them, 1-bottom plate, 2-cover plate, 3-column, 4-upper pressure plate, 5-lower pressure plate, 6-pole, 7-stator core structure, 8-buckle, 9-upper pressure ring, 10-lower pressure ring, 11-positioning key. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] It should be noted that if there are directional indications (such as up, down, left, right, front, and back) in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. If there are descriptions of "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] Example 1

[0030] The present embodiment provides a split stator core manufacturing device, including a base plate 1, a cover plate 2 and a column 3, the two ends of the column 3 are respectively connected to the base plate 1 and the cover plate 2, and the column gap is evenly installed between the base plate 1 and the cover plate 2. The column 3 includes an outer side surface and an inner side surface opposite thereto, and the outer side surface and the inner side surface are provided with through countersunk holes, one side of the pole 6 is connected to the stator core structure 7, and the other side of the pole 6 is connected to the tension bolt through the countersunk hole, the curvature of the inner side surface of the column 3 is the same as the curvature of the outer circumferential surface of the core punching sheet of the stator core, and the tension bolt can pass through the pole 6 to make the stator core structure 7 close to the inner side surface of the column 3, thereby playing a certain positioning and shaping role in the outer circumferential radial direction of the stator core structure.

[0031] The stator core structure 7 includes a core punching sheet, a clasp 8 and a pressing ring, wherein the pressing ring includes an upper pressing ring 9 and a lower pressing ring 10, and the core punching sheet includes an inner cylindrical surface and an outer cylindrical surface, wherein the inner cylindrical surface is provided with a coil slot, and the outer cylindrical surface is provided with a clasp slot. The core punching sheet is connected to the upper pressing ring 9 and the lower pressing ring 10 as a whole through the clasp 8.

[0032] Example 2

[0033] The present embodiment provides a split-type stator core manufacturing device, including a base plate 1, a cover plate 2 and a column 3, wherein the two ends of the column 3 are respectively connected to the base plate 1 and the cover plate 2, and the column gap is evenly installed between the base plate 1 and the cover plate 2. The column 3 includes an outer side surface and an inner side surface opposite thereto, and the outer side surface and the inner side surface are provided with through countersunk holes, and the countersunk holes are aligned with the edge of the stator core structure 7. The inner side surface of the column is provided with a positioning key slot, and a positioning key 11 is provided in the positioning key slot for installation and positioning of the stator core structure on the inner side surface. A tensioning groove is provided between the adjacent buckle plate slots on the edge of the stator core structure 7, and a tensioning structure matching and connected with the tensioning groove on the core punching sheet is provided on one side of the pole 6, and the tensioning groove can be a dovetail groove or a T-slot. The other side of the pole 6 is connected to the tension bolt through a countersunk hole. The curvature of the inner side surface of the column 3 is the same as the curvature of the outer cylindrical surface of the core punching of the stator core. The tension bolt can press the stator core structure 7 tightly against the inner side surface of the column 3 through the pole 6.

[0034] Example 3

[0035] This embodiment provides a split stator core manufacturing device, including a bottom plate 1, a cover plate 2 and a column 3, the two ends of the column 3 are respectively connected to the bottom plate 1 and the cover plate 2, and the column gap is evenly installed between the bottom plate 1 and the cover plate 2, and the stator core structure can be radially welded at the gap of the column. A U-shaped welding notch is provided on the bottom plate 1 and the cover plate 2 between the gaps of the columns 3 to facilitate the welding of the end faces of the stator core structure.

[0036] The column 3 includes an outer side surface and an inner side surface opposite thereto, and the outer side surface and the inner side surface are provided with through countersunk holes, and the countersunk holes are aligned with the edge of the stator core structure 7. The inner side surface of the column is provided with a positioning key slot, and a positioning key 11 is provided in the positioning key slot for installation and positioning of the stator core structure on the inner side surface. A tensioning groove is provided between the adjacent buckle plate slots on the edge of the stator core structure 7, and a tensioning structure matching and connected with the tensioning groove on the core punching sheet is provided on one side of the pole 6, and the tensioning groove can be a dovetail groove or a T-slot. The other side of the pole 6 is connected to the tensioning bolt through the countersunk hole, and the curvature of the inner side surface of the column 3 is the same as the curvature of the outer cylindrical surface of the core punching sheet of the stator core, and the tensioning bolt can press the stator core structure 7 against the inner side surface of the column 3 through the pole 6.

[0037] Example 4

[0038] The present embodiment provides a split-type stator core manufacturing device, including an upper pressing plate 4, a lower pressing plate 5, a base plate 1, a cover plate 2 and a column 3. The upper pressing plate 4 and the lower pressing plate 5 are respectively provided with an upper pressing ring 9 and a lower pressing ring 10. The upper pressing ring 9 and the lower pressing ring 10 can be used to fix the stator core so that the two halves of the stator core remain as a whole during the stacking process. The two ends of the column 3 are respectively connected to the base plate 1 and the cover plate 2, and the gap of the column 3 is evenly installed between the base plate 1 and the cover plate 2, and the stator core structure can be welded at the gap of the column 3. And a U-shaped welding notch is provided on the base plate 1 and the cover plate 2 between the gaps of the columns 3, which is convenient for welding the end faces of the stator core structure. At the same time, notches are provided on the upper pressing ring 9 and the lower pressing ring 10, which can be used for welding the stator core buckle or tightening the axial screw.

[0039] The column 3 includes an outer side surface and an inner side surface opposite thereto, and the outer side surface and the inner side surface are provided with through countersunk holes, and the countersunk holes are aligned with the edge of the stator core structure 7. The inner side surface of the column is provided with a positioning key slot, and a positioning key 11 is provided in the positioning key slot for installation and positioning of the stator core structure on the inner side surface. A tensioning groove is provided between the adjacent buckle plate slots on the edge of the stator core structure 7, and a tensioning structure matching and connected with the tensioning groove on the core punching sheet is provided on one side of the pole 6, and the tensioning groove can be a dovetail groove or a T-slot. The other side of the pole 6 is connected to the tensioning bolt through the countersunk hole, and the curvature of the inner side surface of the column 3 is the same as the curvature of the outer cylindrical surface of the core punching sheet of the stator core, and the tensioning bolt can press the stator core structure 7 against the inner side surface of the column 3 through the pole 6.

[0040] Example 5

[0041] This embodiment provides a step of installing a split stator core manufacturing device according to Embodiment 4, including:

[0042] S1. First, place the lower pressure plate 5 and the lower pressure ring 10 on the stator core structure, and connect the lower pressure ring 10 and the lower pressure plate 5 by bolts;

[0043] S2. The stator punching sheet is stacked along the curvature of the inner side of the column 3 and the positioning mechanism;

[0044] S3. Load the pole 6, and the pole side of the tensioning structure is stuck into the tensioning groove on the stator core structure, from the countersunk hole on the column 3 is loaded with tensioning bolts to connect the pole 6, tighten the punching sheet, so that the punching sheet close to the inner surface of the column 3 for shaping;

[0045] S4. Install the upper pressure ring 9 and the upper pressure plate 4, and connect the upper pressure ring 9 and the upper pressure plate 4 by bolts;

[0046] S5. Install the clasp 8 into the clasp slot of the stator core structure, radially weld the clasp 8 in the middle of the two columns 3, and weld the end faces of the clasp 8 at the welding notches of the bottom plate 1 and the cover plate 2.

[0047] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A split stator core manufacturing device, characterized in that: It includes a base plate, a cover plate and columns connecting the base plate and the cover plate, the columns are evenly installed between the base plate and the cover plate, the columns include inner and outer sides for positioning the stator core structure, the outer side of the column is provided with a countersunk hole that passes through the inner side, the countersunk hole is provided with a tightening bolt, and the tightening bolt is connected to the core punching structure through a pole.

2. The split stator core manufacturing device according to claim 1, characterized in that: The curvature of the inner side surface of the column is the same as the curvature of the outer cylindrical surface of the stator core structure.

3. The split stator core manufacturing device according to claim 1, characterized in that: The inner side surface of the column is provided with a positioning key slot and a positioning key for installing and positioning the stator core structure.

4. The split stator core manufacturing device according to claim 1, characterized in that: The stator core structure is provided with a tensioning groove, and one side of the pole is provided with a tensioning structure matching and connected with the tensioning groove.

5. The split stator core manufacturing device according to claim 1, characterized in that: The countersunk hole is aligned with the tensioning slot of the stator core structure.

6. The split stator core manufacturing device according to claim 4 or 5, characterized in that: The tensioning groove is arranged in the radial direction or the axial direction of the stator core structure.

7. The split stator core manufacturing device according to claim 1, characterized in that: A welding notch is provided at the gap between the cover plate and / or the bottom plate between adjacent columns.

8. The split stator core manufacturing device according to claim 1, characterized in that: The stator core structure comprises a core punching sheet, a buckle sheet and a pressing ring, wherein the pressing ring comprises an upper pressing ring and a lower pressing ring, and the core punching sheet is connected to the upper pressing ring and the lower pressing ring as a whole through the buckle sheet.

9. The split stator core manufacturing device according to claim 8, characterized in that: The pressing ring is provided with a notch.

10. The split stator core manufacturing device according to claim 1, characterized in that: The split stator core manufacturing device also includes an upper pressing plate and a lower pressing plate, and the upper pressing plate and the lower pressing plate are respectively connected to two ends of the stator core structure.

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