Split type motor stator winding shaping tool structure

Abstract

The utility model belongs to the technical field of research, development and manufacturing of small and medium-sized motors, and relates to a split type motor stator winding shaping tool structure. Comprising a shaft, an upper pressing head, a locking nut, a mandrel, an upper pressing sleeve, a lower pressing sleeve, a rotating bolt, a nut, a clamping plate A, a rotating shaft and a clamping plate B, the shaping device realizes step-by-step shaping of the inner diameter, the outer diameter and the height size of the windings at the two ends of the motor, is not only suitable for the motor stator winding with the inner diameter, the outer diameter or the height size out of tolerance before shaping, but also suitable for the motor stator winding with the size out of tolerance in all directions before shaping, and is wide in application range. For shaping in the outer diameter direction of the winding, the winding is gradually extruded inwards from the outer circumferential direction through a split clamping plate structure, contact extrusion between the tool edge and the winding is avoided, and the risk that the winding is damaged due to shaping is greatly reduced.

Description

Technical Field

[0001] This utility model belongs to the field of R&D and manufacturing technology of small and medium-sized motors, and relates to a split-type motor stator winding shaping fixture structure. It is applied to the shaping of stator windings of small and medium-sized motors, and is suitable for motor stator windings whose dimensions in all directions are out of tolerance before shaping. Through the split clamping plate structure, the risk of winding damage caused by shaping is reduced, and the processing quality is guaranteed. Background Technology

[0002] Currently, the stator winding shaping fixture structure consists of a core mold, an outer mold, and a pressure plate, etc., to shape the inner diameter, outer diameter, and height of the winding to ensure the final dimensions of the winding. The dimensions in the three directions are as follows: Figure 3 As shown in the utility model patent CN216162573U, a tooling for shaping the end of a motor stator winding, and the utility model patent CN205986525U, a winding shaping mold for the stator core of a scroll compressor motor, both utilize an integrated hollow cavity, such as... Figure 4 As shown, the winding's inner diameter, outer diameter, and height are simultaneously extruded and shaped. If the inner diameter, outer diameter, and height dimensions of the winding exceed the range of the shaping mold before shaping, interference may occur with the winding during the mold insertion process. Given that the winding material is relatively soft enameled copper wire, this structure carries the risk of damaging the winding. For example, the motor stator winding end shaping mold in utility model patent CN203313005U shapes the inner diameter, outer diameter, and height through the inner core, outer ring, and middle ring, respectively. However, it is a round structure and is only suitable for extruding windings in the height direction. If the outer diameter of the winding is larger than the outer ring size of the shaping mold, or the inner diameter of the winding is smaller than the inner ring size of the shaping mold, the edges of the shaping mold cavity will make line contact with the winding when the mold is inserted, resulting in the winding being subjected to greater local pressure, damaging the enamel film and copper core. Summary of the Invention

[0003] The purpose of this invention is to propose a split-type motor stator winding shaping fixture structure, which is suitable for shaping stator windings of small and medium-sized motors, while ensuring that the windings are not squeezed or damaged by the shaping fixture during the shaping process.

[0004] The technical solution of the present invention is: a split-type motor stator winding shaping fixture structure, characterized in that it includes a shaft 1, an upper pressure head 2, a locking nut 3, a spindle 4, an upper pressure sleeve 5, a lower pressure sleeve 6, a rotating bolt 7, a nut 8, a clamping plate A9, a rotating shaft 10, and a clamping plate B11; the middle part of the spindle 4 is fitted with the inner hole of the stator core, and the upper end is sequentially fitted with the upper pressure head 2 and the locking nut 3; the lower end is fitted into the lower pressure sleeve 6; the upper pressure sleeve 5 is fitted on the upper pressure head 2 and the locking nut 3, and the clamping plate A9 and the clamping plate B11 are combined and fitted on the outside of the upper pressure sleeve 5 and the lower pressure sleeve 6, one end of which is connected by the shaft 1, and the other end is fixed by the rotating bolt 7, the rotating shaft 10, and the nut 8.

[0005] The spindle 4 has a multi-step columnar structure with a tapered upper part at the large diameter end, which fits snugly against the winding.

[0006] The upper pressure head 2 is a columnar structure with a through hole in the middle to cooperate with the spindle 4. The upper pressure head has a taper and fits into the winding.

[0007] The clamping plate A9 is semi-circular, with a shaft hole at the upper part of one end and a concave groove at the other end.

[0008] The clamping plate B11 is semi-circular. One end of the clamping plate B11 has a shaft hole at the bottom. The shaft 1 passes through the clamping plate A9 and the shaft hole of the clamping plate B11 and is connected. The other end of the clamping plate B11 has a concave groove. Both ends of the concave groove have through holes. The rotating shaft 10 is installed in the through holes, and the rotating bolt 7 is installed on the rotating shaft 10.

[0009] The inner diameter of the clamping plates A9 and B11 after being enclosed is clearance-fitted with the outer diameter of the upper pressure sleeve 5 and the lower pressure sleeve 6.

[0010] The clamping plates A9 and B11 are connected together by shaft 1 and can rotate 180°.

[0011] The beneficial effects of this invention are:

[0012] A split-type motor stator winding shaping fixture. It is used for shaping stator windings of small and medium-sized motors and can be applied to motor stator windings whose dimensions are out of tolerance in all directions before shaping. The split clamping plate structure reduces the risk of winding damage during shaping and ensures processing quality. Attached Figure Description

[0013] Figure 1 This is a front sectional view of the present invention;

[0014] Figure 2 This is a top sectional view of the present invention;

[0015] Figure 3 This is a schematic diagram of the winding end dimensions;

[0016] Figure 4 Schematic diagram of the integrated shaping fixture structure;

[0017] Figure 5 Schematic diagram of mandrel structure;

[0018] Figure 6 Schematic diagram of the A9 clamping plate structure;

[0019] Figure 7 Schematic diagram of the B11 clamping plate structure;

[0020] Figure 8 Schematic diagram of rotating bolt 7;

[0021] Figure 9 Tooling locking diagram;

[0022] Wherein: 1-shaft, 2-upper pressure head, 3-locking nut, 4-spindle, 5-upper pressure sleeve, 6-lower pressure sleeve, 7-rotating bolt, 8-nut, 9-clamping plate A, 10-rotating shaft, 11-clamping plate B. Detailed Implementation

[0023] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0024] like Figure 1 , Figure 2 As shown, a split-type motor stator winding shaping fixture structure is characterized by comprising a shaft 1, an upper pressure head 2, a locking nut 3, a spindle 4, an upper pressure sleeve 5, a lower pressure sleeve 6, a rotating bolt 7, a nut 8, a clamping plate A9, a rotating shaft 10, and a clamping plate B11. The middle part of the spindle 4 mates with the inner hole of the stator core, and the tapered part shapes the inner diameter of the lower winding end of the stator core. The upper end is sequentially fitted with the upper pressure head 2 and the locking nut 3 to shape the inner diameter of the upper winding end of the stator core. The lower end is fitted into the lower pressure sleeve 6. The upper pressure sleeve 5 is fitted onto the upper pressure head 2 and the locking nut 3. The clamping plates A9 and B11 are combined and fitted over the upper pressure sleeve 5 and the lower pressure sleeve 6, with one end connected by the shaft 1 and the other end fixed by the rotating bolt 7, the rotating shaft 10, and the nut 8. The planar fit achieves the shaping of the outer diameter of the winding. The upper pressure sleeve 5 and the lower pressure sleeve 6 compress the winding to shape the upper and lower ends of the winding in the height direction.

[0025] like Figure 5 As shown, the spindle 4 has a multi-step columnar structure with a tapered upper part at the large diameter end, which fits into the winding to ensure the inner diameter of the lower winding end.

[0026] The upper pressure head 2 is a columnar structure with a through hole in the middle to cooperate with the mandrel 4. The upper pressure head has a taper to fit the winding and ensure the inner diameter of the upper winding end.

[0027] like Figure 6 As shown, clamp A9 is semi-circular, with a shaft hole at the upper part of one end and a concave groove at the other end.

[0028] like Figure 7 As shown, the clamping plate B11 is semi-circular. One end of the clamping plate B11 has a shaft hole at the bottom. The shaft 1 passes through the clamping plate A9 and the shaft hole of the clamping plate B11 and is connected. The other end of the clamping plate B11 has a concave groove. Both ends of the concave groove have through holes. The rotating shaft 10 is installed in the through hole, and the rotating bolt 7 is installed on the rotating shaft 10.

[0029] The inner diameter of the clamping plates A9 and B11 after being enclosed is clearance-fitted with the outer diameter of the upper pressure sleeve 5 and the lower pressure sleeve 6, thereby ensuring that the winding height is limited within the pressure sleeve.

[0030] like Figure 9As shown, clamp A9 and clamp B11 are connected together by shaft 1 and can rotate 180°. During the process of fitting the planes of clamp A9 and clamp B11 together, the position size of the winding end is gradually reduced, thereby realizing the shaping of the outer diameter direction on both sides of the stator winding.

[0031] A rotating shaft 10 is mounted on clamping plate B11. After rotating clamping plate A9 and clamping plate B11 to make the planes fit together, rotate the rotating bolt 7 mounted on the rotating shaft 10 into the groove of clamping plate A9 and tighten the nut 8 to achieve the fastening of clamping plate A9 and clamping plate B11.

Claims

1. A split-type motor stator winding shaping fixture structure, characterized in that, It includes a shaft (1), an upper pressure head (2), a locking nut (3), a spindle (4), an upper pressure sleeve (5), a lower pressure sleeve (6), a rotating bolt (7), a nut (8), a clamping plate A (9), a rotating shaft (10), and a clamping plate B (11). The middle part of the spindle (4) is fitted with the inner hole of the stator core, and the upper end is sequentially fitted with the upper pressure head (2) and the locking nut (3). The lower end is fitted into the lower pressure sleeve (6). The upper pressure sleeve (5) is fitted on the upper pressure head (2) and the locking nut (3). The clamping plate A (9) and the clamping plate B (11) are combined and fitted on the outside of the upper pressure sleeve (5) and the lower pressure sleeve (6). One end is connected by the shaft (1), and the other end is fixed by the rotating bolt (7), the rotating shaft (10), and the nut (8).

2. The split-type motor stator winding shaping fixture structure according to claim 1, characterized in that, The spindle (4) has a multi-step columnar structure with a tapered upper part at the large diameter end, which fits into the winding.

3. The split-type motor stator winding shaping fixture structure according to claim 1, characterized in that, The upper pressure head (2) is a columnar structure with a through hole in the middle that fits with the spindle (4). The upper pressure head has a taper and fits snugly with the winding.

4. The split-type motor stator winding shaping fixture structure according to claim 1, characterized in that, The clamping plate A (9) is semi-circular. One end of the clamping plate A (9) has a shaft hole at the top and a concave groove at the other end.

5. The split-type motor stator winding shaping fixture structure according to claim 1, characterized in that, The clamping plate B (11) is semi-circular. One end of the clamping plate B (11) has a shaft hole at the bottom. The shaft (1) passes through the shaft hole of the clamping plate A (9) and the clamping plate B (11) and is connected. The other end of the clamping plate B (11) has a concave groove. The two ends of the concave groove have through holes. The rotating shaft (10) is installed in the through hole, and the rotating bolt (7) is installed on the rotating shaft (10).

6. The split-type motor stator winding shaping fixture structure according to claim 1, characterized in that, The inner diameter of the clamping plate A (9) and clamping plate B (11) after being enclosed is in clearance fit with the outer diameter of the upper pressure sleeve (5) and the lower pressure sleeve (6).

7. The split-type motor stator winding shaping fixture structure according to claim 4, characterized in that, Clamping plate A (9) and clamping plate B (11) are connected together by shaft (1) and can rotate 180°.

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