Stator coil flaring shaping device

Abstract

The utility model discloses a stator coil flaring shaping device which comprises a machine table, a guide column is arranged on the machine table, the guide column comprises a column body and a frustum arranged at the top end of the column body, a stator positioning ring is sleeved on the column body of the guide column in a sliding mode, the outer diameter of the stator positioning ring is matched with the inner diameter of a stator iron core, and the frustum is arranged at the top end of the column body. A lifting disc is arranged above the guide column, the lower end of a disc body of the lifting disc is slidably connected with a plurality of fan-shaped columns forming a cylinder in a surrounding mode in the radial direction of the lifting disc, the periphery of the cylinder is sleeved with a spring ring, all the fan-shaped columns tend to be folded through the spring ring, and a guide face is arranged at the lower end of each fan-shaped column. When the disc body descends, the guide face abuts against the conical face of the frustum in a sliding mode, and gaps between the adjacent fan-shaped columns are expanded. The stator coil flaring device can replace manpower to flaring a stator coil, enables a wire body which is originally inclined inwards to be shaped outwards, is high in shaping efficiency, and improves the concentricity of the coil and a stator iron core.

Description

Technical Field

[0001] The utility model relates to the technical field of motor manufacturing, in particular to a stator coil expanding and shaping device. Background Art

[0002] The stator winding of a motor usually includes multiple coils. During manufacturing, the coils need to be evenly wound on a cylindrical stator core. After all the coils are fixed on the stator core, there are many coils with their upper ends tilted inward, which affects the subsequent assembly of the rotor. Therefore, the coils need to be expanded and the coils with their upper ends tilted inward are shaped outward.

[0003] Currently, this process is mostly done manually, requiring workers to bend and expand all the upper ends of the coils. The efficiency of manual expansion is low and the concentricity between the coil ends and the stator core after shaping is poor, resulting in an increased possibility of defective rates in subsequent processing. Utility Model Content

[0004] The utility model aims to provide a stator coil expanding and shaping device, which can replace manpower to expand the stator coil, so that the wire body originally inclined inwards is shaped outwards, the shaping efficiency is high and the concentricity of the coil and the stator core is improved.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a stator coil expanding and shaping device, including a machine platform, a guide column is provided on the machine platform, the guide column includes a column body and a frustum arranged at the top of the column body, a stator positioning ring is slidably sleeved on the column body of the guide column, the outer diameter of the stator positioning ring is adapted to the inner diameter of the stator core, a lifting plate is provided above the guide column, the lower end of the plate body of the lifting plate is slidably connected along its radial direction with a plurality of fan-shaped columns that surround and form a cylinder, the outer periphery of the cylinder is sleeved with a spring ring, the spring ring makes all the fan-shaped columns have a tendency to close, a guide surface is provided at the lower end of each fan-shaped column, when the plate body descends, the guide surface slides and abuts against the conical surface of the frustum and the gap between adjacent fan-shaped columns is enlarged.

[0006] A further improvement of the utility model is that a top plate is provided above the lifting plate, and the lifting plate includes a cylinder arranged below the top plate, and the telescopic end of the cylinder is vertically downward and connected to the plate body.

[0007] A further improvement of the utility model is that the outer circumference of the sector-shaped column is provided with a groove, and the grooves on the outer circumference of all the sector-shaped columns are connected to form an annular groove, and the spring ring is located in the annular groove.

[0008] A further improvement of the utility model is that a plurality of slide grooves corresponding to the fan-shaped columns are provided on the disk body, the length direction of each slide groove is consistent with the radial direction of the disk body, a slide rod is slidably connected in the slide groove along its length direction, the lower end of the slide rod is connected to the fan-shaped column, and the upper end of the slide rod is provided with a limit block with a diameter larger than the width of the slide groove.

[0009] A further improvement of the present invention is that all the slide grooves are distributed at intervals along the center and circumference of the disk body.

[0010] A further improvement of the utility model is that an elastic seat is provided on the machine platform, and the elastic seat includes a guide cylinder fixedly arranged on the machine platform, a buffer plate is slidably connected in the guide cylinder, a spring is provided between the buffer plate and the table surface of the machine platform, and the guide column is arranged on the buffer plate.

[0011] A further improved solution of the utility model is that a support ring with a diameter larger than the outer diameter of the stator positioning ring is coaxially provided at the lower end of the column, and the frustum portion is located inside the stator positioning ring.

[0012] A further improvement of the utility model is that all the guide surfaces are combined to form a tapered hole.

[0013] A further improvement of the utility model is that the fan-shaped columns are provided with 6 pieces. The beneficial effects of the utility model are:

[0014] The utility model arranges a plurality of fan-shaped columns to cooperate with the frustum, and can expand the plurality of fan-shaped columns by pressing down, thereby expanding the stator coil sleeved on the stator positioning ring, so that the coil can be squeezed and shaped along the moving direction of the fan-shaped columns, and can replace manpower to expand the stator coil, so that the wire body originally inclined inwardly can be shaped outwardly, and the shaping efficiency is high.

[0015] The utility model is a sector-shaped column formed by a plurality of blocks surrounding a cylinder, and a spring ring is sleeved on the outer circumference of the sector-shaped column, so that the plurality of sector-shaped columns can automatically remain closed to form a cylinder under normal conditions, so as to reduce the diameter and better enter the middle of the stator coil, without the need for manual resetting, thereby improving the efficiency of the expansion.

[0016] The utility model provides a frustum and a plurality of sector-shaped columns surrounding a cylinder, and synchronous expansion can be achieved through the extrusion movement of the guide surface and the frustum during expansion, thereby improving the concentricity of the coil and the stator core.

[0017] The utility model provides an elastic seat, which can make the cone rise and fall adaptively during the downward pressure of the guide surface, can better keep a plurality of sector columns away from each other, improve the smoothness of the expansion, and can buffer the downward pressure of the disk body to reduce collision damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0019] Figure 2 It is a schematic front view of the fan-shaped column structure of the utility model.

[0020] Figure 3 It is a bottom view schematic diagram of the disk structure of the utility model.

[0021] Figure 4 It is a schematic front cross-sectional view of the elastic seat structure of the utility model.

[0022] Figure 5 It is a partially enlarged schematic cross-sectional view of the disk structure of the utility model.

[0023] In the figure, 1-machine table, 2-column, 3-cone, 4-stator positioning ring, 5-disk, 6-fan-shaped column, 7-spring ring, 8-guide surface, 9-cylinder, 10-groove, 11-slide groove, 12-slide rod, 13-limit block, 14-guide cylinder, 15-buffer plate, 16-spring, 17-support ring. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] Example 1: Combination Figures 1 to 5 It can be seen that a stator coil expanding and shaping device includes a machine table 1, on which a guide column is provided, the guide column includes a column body 2 and a frustum 3 arranged at the top of the column body 2, a stator positioning ring 4 is slidably sleeved on the column body 2 of the guide column, the outer diameter of the stator positioning ring 4 is adapted to the inner diameter of the stator core, a lifting plate is provided above the guide column, and the lower end of the plate body 5 of the lifting plate is slidably connected along its radial direction with a plurality of fan-shaped columns 6 that surround and form a cylinder, a spring ring 7 is sleeved on the outer periphery of the cylinder, and the spring ring 7 makes all the fan-shaped columns 6 have a tendency to close, and a guide surface 8 is provided at the lower end of each fan-shaped column 6, and when the plate body 5 descends, the guide surface 8 slides and abuts against the conical surface of the frustum 3 and the gap between adjacent fan-shaped columns 6 is enlarged.

[0026] A top plate is arranged above the lifting plate, and the lifting plate comprises a cylinder 9 arranged below the top plate, and the telescopic end of the cylinder 9 is vertically downward and connected to the plate body 5. The top plate is arranged on the machine platform 1 through a support column.

[0027] The outer circumference of the sector column 6 is provided with a groove 10, and the grooves on the outer circumference of all the sector columns 6 are connected to form an annular groove, and the spring ring 7 is located in the annular groove. Preferably, the spring ring 7 is formed by connecting a long spring end to end.

[0028] The disk body 5 is provided with a plurality of slide grooves 11 corresponding to the sector columns 6, the length direction of each slide groove 11 is consistent with the radial direction of the disk body 5, a slide rod 12 is slidably connected in the slide groove 11 along its length direction, the lower end of the slide rod 12 is connected to the sector column 6, and the upper end of the slide rod 12 is provided with a stopper 13 having a diameter greater than the width of the slide groove 11. All the slide grooves 11 are distributed at intervals along the center circumference of the disk body 5.

[0029] The machine table 1 is provided with an elastic seat, which includes a guide cylinder 14 fixedly arranged on the machine table 1, a buffer plate 15 is slidably connected in the guide cylinder 14, a spring 16 is arranged between the buffer plate 15 and the table surface of the machine table 1, and a guide column is arranged on the buffer plate 15. A limit stopper is arranged in the upper opening of the guide cylinder 14 to prevent the buffer plate 15 from falling out.

[0030] A support ring 17 having a diameter greater than the outer diameter of the stator positioning ring 4 is coaxially disposed at the lower end of the column 2 , and the frustum 3 is partially located inside the stator positioning ring 4 .

[0031] All the guide surfaces 8 are combined to form a conical hole. There are at least five sector-shaped columns 6, and preferably there are six sector-shaped columns 6.

[0032] The working principle of a stator coil expanding and shaping device provided by the utility model is as follows: when in use, the stator core is sleeved on the stator positioning ring 4, the cylinder 9 is started, and the disk body 5 is pressed down to drive multiple fan-shaped columns 6 to abut against the cone 3. At this time, the outer periphery of the fan-shaped column 6 is located inside the coil, and the cylinder 9 continues to extend. After the fan-shaped column 6 is pressed, the slide bar 12 thereon slides in the slide groove 11, and the adjacent fan-shaped columns 6 move away synchronously to squeeze the inwardly inclined coil on the outside thereof, so that the inwardly inclined coil can be shaped outwardly. Pressing down the disk body 5 once can basically meet the shaping needs, and the cylinder 9 can be reset as needed, and the stator positioning ring 4 is manually rotated to change the position of the coil and then the disk body 5 is pressed down again to reduce the shaping blind angle and further improve the shaping effect.

[0033] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. Any equivalent structure or equivalent process transformation made using the contents of the utility model specification and the accompanying drawings, or directly or indirectly used in other related technical fields, are similarly included in the patent protection scope of the present utility model.

Claims

1. A stator coil expansion and shaping device, characterized in that: The invention comprises a machine platform (1), wherein a guide column is provided on the machine platform (1), wherein the guide column comprises a column body (2) and a cone (3) arranged at the top of the column body (2), wherein a stator positioning ring (4) is slidably sleeved on the column body (2) of the guide column, wherein the outer diameter of the stator positioning ring (4) is matched with the inner diameter of the stator core, wherein a lifting plate is provided above the guide column, wherein the lower end of the plate body (5) of the lifting plate is slidably connected along its radial direction with a plurality of fan-shaped columns (6) which surround and form a cylinder, wherein a spring ring (7) is sleeved on the outer circumference of the cylinder, wherein the spring ring (7) makes all the fan-shaped columns (6) have a tendency to close, and a guide surface (8) is provided at the lower end of each fan-shaped column (6), wherein when the plate body (5) descends, the guide surface (8) slides and abuts against the cone surface of the cone (3), and the gap between adjacent fan-shaped columns (6) is enlarged.

2. The stator coil expansion and shaping device according to claim 1, characterized in that: A top plate is provided above the lifting plate, and the lifting plate comprises a cylinder (9) arranged below the top plate, wherein the telescopic end of the cylinder (9) is vertically downward and connected to the plate body (5).

3. The stator coil expansion and shaping device according to claim 1, characterized in that: The outer circumference of the sector-shaped column (6) is provided with a groove (10), and the grooves on the outer circumference of all the sector-shaped columns (6) are connected to form an annular groove, and the spring ring (7) is located in the annular groove.

4. The stator coil expansion and shaping device according to claim 1, characterized in that: The disk body (5) is provided with a plurality of slide grooves (11) corresponding to the fan-shaped columns (6), the length direction of each slide groove (11) is consistent with the radial direction of the disk body (5), and a slide rod (12) is slidably connected in the slide groove (11) along its length direction, the lower end of the slide rod (12) is connected to the fan-shaped column (6), and the upper end of the slide rod (12) is provided with a limit block (13) whose diameter is larger than the groove width of the slide groove (11).

5. The stator coil expansion and shaping device according to claim 4, characterized in that: All the slide grooves (11) are distributed at intervals along the center and circumference of the disk body (5).

6. The stator coil expansion and shaping device according to claim 1, characterized in that: The machine platform (1) is provided with an elastic seat, the elastic seat comprising a guide cylinder (14) fixedly arranged on the machine platform (1), a buffer plate (15) being slidably connected inside the guide cylinder (14), a spring (16) being provided between the buffer plate (15) and the table surface of the machine platform (1), and the guide column being arranged on the buffer plate (15).

7. The stator coil expansion and shaping device according to claim 1, characterized in that: A support ring (17) having a diameter greater than the outer diameter of the stator positioning ring (4) is coaxially disposed at the lower end of the column (2), and the frustum (3) is partially located inside the stator positioning ring (4).

8. The stator coil expansion and shaping device according to claim 1, characterized in that: All the guide surfaces (8) are combined to form a tapered hole.

9. The stator coil expansion and shaping device according to claim 1, characterized in that: The fan-shaped columns (6) are provided in 6 pieces.

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