Stator core pre-positioning mechanism and stator core displacement device

Abstract

The utility model belongs to the technical field of stator assembly, and discloses a stator core pre-positioning mechanism and a stator core displacement device, the stator core pre-positioning mechanism comprises a positioning seat, a sliding seat, a floating seat and a positioning member, the sliding seat is slidably connected to the positioning seat, and the sliding seat moves along a first direction; the floating seat is slidably connected to the sliding seat and can move in a second direction relative to the sliding seat, and the second direction is perpendicular to the first direction; the positioning piece is slidably connected to the floating seat and can move in a third direction relative to the floating seat, the third direction is perpendicular to the first direction and the second direction, and the positioning piece can abut against the stator iron core. According to the utility model, the floating positioning member abuts against the stator iron core, so that the stator iron core can slightly move along the second direction and the third direction in the process of clamping the correction position of the stator iron core, but the stator iron core does not twist, thereby ensuring that the wiring terminal on the stator iron core is aligned with the wiring hole on the casing.

Description

Technical Field

[0001] The utility model relates to the technical field of stator assembly, in particular to a stator iron core pre-positioning mechanism and a stator iron core displacement device. Background Art

[0002] The stator is the stationary part of the motor or generator. The stator consists of three parts: the stator core, the stator winding and the casing. During the motor production process, the stator winding is first wound on the stator core, and then the pins arranged circumferentially at one end of the stator core are welded to the PCB (Printcd Cicuils Board), that is, the printed circuit board, so that the stator core winding is connected to other circuits, and then the stator core welded with the PCB board is installed inside the casing.

[0003] At present, the assembly of the stator core and the housing is generally carried out by automated equipment. Before assembly, the stator core is generally grabbed to the assembly station by a two-axis motion mechanism or a three-axis motion mechanism equipped with a pneumatic gripper. When the pneumatic gripper is working, two gripping fingers moving along the radial direction of the stator core abut against the stator core, and the side where the two gripping fingers are close to each other is set in an arc surface, which is convenient for positioning the stator core set in a circular ring.

[0004] Since the PCB board has reserved wiring terminals and the corresponding terminals on the casing have reserved wiring holes, during the process of grabbing the stator core, it is impossible to ensure that the two arc surfaces are accurately aligned with the stator core, that is, the arc center connecting lines of the two arc surfaces intersect at the axis of the stator core. It is easy to cause the stator core to twist after the arc surface on the clamping finger contacts the stator core, so that after the stator core is assembled inside the casing, the positions of the wiring terminals and the wiring holes deviate, causing the stator to be scrapped. Utility Model Content

[0005] The utility model aims to provide an iron core pre-positioning mechanism and a stator iron core displacement device, which pre-position the stator iron core to be installed in a casing, so that the connection terminals on the stator iron core correspond to the connection holes on the casing, thereby improving the stator yield.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The stator core pre-positioning mechanism is used to position the stator core, wherein the axis of the stator core is parallel to the first direction, and the stator core pre-positioning mechanism comprises:

[0008] Positioning seat;

[0009] A sliding seat, the sliding seat is slidably connected to the positioning seat, and the sliding seat moves along the first direction;

[0010] a floating seat, the floating seat being slidably connected to the sliding seat, the floating seat being movable relative to the sliding seat along a second direction, the second direction being perpendicular to the first direction; and

[0011] A positioning member is slidably connected to the floating seat, and the positioning member can move along a third direction relative to the floating seat, and the third direction is perpendicular to the first direction and the second direction, and the positioning member can abut against the stator core.

[0012] Preferably, the sliding seat is connected to a connecting seat, and the connecting seat comprises:

[0013] a connecting plate, the connecting plate being connected to the sliding seat, the floating seat being slidably connected to the connecting plate, and the floating seat moving along the second direction; and

[0014] A first end plate, wherein two first end plates are spaced apart from each other on the connecting plate, the floating seat is located between the two first end plates, and a first elastic member is abutted between the two first end plates and the floating seat.

[0015] Preferably, the first elastic member is an elastic telescopic rod, and the axis of the elastic telescopic rod is parallel to the second direction.

[0016] Preferably, a first weight-reducing hole is provided on the first end plate.

[0017] Preferably, the floating seat comprises:

[0018] a floating plate, the floating plate being slidably connected to the connecting plate, the floating plate moving along the second direction; and

[0019] A second end plate, wherein two second end plates are spaced apart on the floating plate, the positioning member is located between the two second end plates, and a second elastic member is abutted between the two second end plates and the positioning member.

[0020] Preferably, a second weight-reducing hole is provided on the second end plate.

[0021] Preferably, a positioning column is provided on a side of the positioning member away from the floating seat, the axis of the positioning column is arranged along the first direction, and the positioning column can be inserted into the inner ring of the stator core.

[0022] Preferably, an elastic layer is provided on a side of the positioning member away from the floating seat.

[0023] The stator core displacement device comprises a displacement mechanism and a stator clamp connected to the displacement mechanism, and also comprises a stator core pre-positioning mechanism. The stator core pre-positioning mechanism and the stator clamp are distributed along the first direction.

[0024] Preferably, the stator core displacement device further comprises:

[0025] A rotary driving member, wherein the rotary driving member is connected to the displacement mechanism, the stator clamp is connected to the rotary driving member, and the rotating shaft of the rotary driving member is arranged parallel to the second direction.

[0026] Beneficial effects of the utility model:

[0027] The stator core pre-positioning mechanism of the utility model connects the positioning piece to the floating seat in a sliding manner, and the floating seat is connected to the sliding seat in a sliding manner, so that the positioning piece is finally floated in the second direction and the third direction. When the sliding seat drives the positioning piece to abut the stator core in the first direction, the stator core abutted by the positioning piece is not easy to rotate around its own axis, so that circumferential positioning is achieved, and then the stator core is clamped. In the process of the pneumatic clamping jaws clamping the stator core, the floating positioning piece can make the stator core move slightly in the second direction and the third direction, so that the stator core does not twist when the position is corrected, so that after the stator core is assembled inside the casing, the wiring terminals on the stator core are aligned with the wiring holes on the casing, so as to improve the yield rate of the stator.

[0028] The stator core displacement device of the utility model is characterized in that the stator clamping jaws and the stator core pre-positioning mechanism are arranged along a first direction. Before the stator clamping jaws clamp the stator core, the stator core is pre-positioned by the stator core pre-positioning mechanism. When the stator clamping jaws clamp the stator core, the stator core is circumferentially limited to ensure that the connection terminals on the stator core are aligned with the connection holes on the casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the stator core displacement device of the utility model;

[0030] Figure 2 It is a structural schematic diagram of the stator clamp and the rotary drive member of the utility model;

[0031] Figure 3 It is a schematic diagram of the overall structure of the stator core pre-positioning mechanism of the utility model.

[0032] In the figure:

[0033] 1. Positioning seat; 2. Sliding seat; 3. Floating seat; 31. Floating plate; 32. Second end plate; 321. Second weight-reducing hole; 322. Second elastic member; 4. Positioning member; 41. Positioning column; 42. Elastic layer; 5. Connecting seat; 51. Connecting plate; 52. First end plate; 521. First weight-reducing hole; 522. First elastic member; 6. Displacement mechanism; 7. Stator clamp; 8. Rotating drive member. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0035] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, 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 of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0038] Refer to the following Figures 1 to 3 The stator core displacement device and the stator core pre-positioning mechanism provided by the utility model are described.

[0039] Reference Figure 1 and Figure 2 The stator core displacement device includes a displacement mechanism 6, a stator clamp 7, a rotating drive member 8 and a stator core pre-positioning mechanism. The displacement mechanism 6 can be a mechanism in the prior art that can drive components to be displaced, such as a two-axis motion mechanism, a three-axis motion mechanism or a three-axis robotic arm, etc. This embodiment is described by taking a two-axis motion mechanism as an example.

[0040] Furthermore, the rotary drive member 8 and the stator core pre-positioning mechanism are both connected to the displacement mechanism 6, the stator clamp 7 is connected to the rotary drive member 8, the stator clamp 7 and the stator core pre-positioning mechanism are distributed along a first direction, in this embodiment, the first direction is a vertical direction, and the stator clamp 7 is located below the stator core pre-positioning mechanism.

[0041] Optionally, the rotary drive member 8 may be a component in the prior art that can drive a component to rotate, such as a rotary cylinder or a motor, etc. This embodiment is described by taking a rotary cylinder as an example.

[0042] Optionally, the stator clamp 7 can be a clamp capable of clamping the stator core in the prior art, such as a pneumatic clamp or an electric clamp, etc. This embodiment is described by taking a pneumatic clamp as an example, and the stator clamp 7 is further preferably a parallel clamp in the pneumatic clamp, which has two parallel movable clamps and has good stability and clamping effect. The rotating drive 8 can drive the stator clamp 7 holding the stator core to rotate, so that the stator core is turned over to exchange the relative position of the stator core and the PCB board, so that the PCB board is located at the bottom or top of the stator core according to assembly requirements.

[0043] Furthermore, the stator core pre-positioning mechanism is used to axially pre-position the stator core that the stator clamp 7 is about to clamp, so that the stator core is not easy to rotate around its own axis, and circumferential positioning is achieved. Therefore, when the stator core is corrected, no twisting occurs, so that after the stator core is assembled inside the housing, the connection terminals on the stator core are aligned with the connection holes on the housing, reducing production errors and improving the yield rate. For an exemplary structure of the stator core pre-positioning mechanism, please refer to the following content of this embodiment.

[0044] Reference Figure 2 and Figure 3 The stator core pre-positioning mechanism comprises a positioning seat 1, a sliding seat 2, a floating seat 3 and a positioning member 4. The positioning seat 1, the sliding seat 2, the floating seat 3 and the positioning member 4 are arranged in sequence from top to bottom, that is, the positioning seat 1, the sliding seat 2, the floating seat 3 and the positioning member 4 are arranged along the first direction. The positioning seat 1 is connected to the displacement mechanism 6, the sliding seat 2 is slidably connected to the positioning seat 1, and the sliding seat 2 slides along the first direction, the floating seat 3 is slidably connected to the sliding seat 2, and the floating seat 3 can move relative to the sliding seat 2 along the second direction, and the second direction is perpendicular to the first direction, and the positioning member 4 is slidably connected to the floating seat 3, and the positioning member 4 can move relative to the floating seat 3 along the third direction, and the third direction is perpendicular to the first direction and the second direction.

[0045] Based on the above, before the stator clamp 7 grabs the stator core, the sliding seat 2 first slides downward to make the positioning member 4 abut against the stator core, so that the stator core is not easy to rotate around its own axis direction, and then the stator clamp 7 clamps the stator core. Since the positioning member 4 can float along the second direction and the third direction, during the process of the stator clamp 7 clamping the stator core, the abutted stator core can move slightly along the second direction and the third direction, that is, move in the horizontal plane, so that the stator core does not twist when the position is corrected, ensuring that after the stator core is assembled inside the casing, the terminal on the stator core corresponds to the wiring hole on the casing.

[0046] Specifically, the sliding of the sliding seat 2 is driven by a cylinder, and the sliding seat 2 is guided and limited by a guide rail and a sliding block that are slidably matched.

[0047] Furthermore, the sliding seat 2 is connected to a connecting seat 5, and the connecting seat 5 includes a connecting plate 51 and a first end plate 52. The connecting plate 51 is horizontally arranged and connected to the bottom of the sliding seat 2. The length direction of the connecting plate 51 is parallel to the second direction. Two first end plates 52 are arranged at intervals at the bottom of the connecting plate 51. The two first end plates 52 are respectively placed at both ends of the length direction of the connecting plate 51, and each first end plate 52 is provided with a first weight-reducing hole 521 to reduce the weight of the connecting seat 5.

[0048] Specifically, the floating seat 3 includes a floating plate 31 and a second end plate 32. The floating plate 31 is slidably connected to the bottom of the connecting plate 51. The sliding between the floating plate 31 and the connecting plate 51 is achieved by mutually nested sliders and slide grooves. In this embodiment, a linear guide rail is arranged between the floating plate 31 and the connecting plate 51, and the linear guide rail is used for guiding and limiting.

[0049] Furthermore, a first elastic member 522 is abutted between the first end plate 52 and the floating plate 31. Optionally, the first elastic member 522 can be a component such as a spring or an elastic telescopic rod that can elastically limit the floating seat 3. In this embodiment, the elastic telescopic rod is taken as an example. The axis of the elastic telescopic rod is parallel to the second direction, and one end of the elastic telescopic rod is connected to the first end plate 52, and the other end abuts against the floating plate 31. Thus, the floating floating plate 31 is elastically limited to prevent the floating plate 31 from sliding along the second direction without the action of external force.

[0050] Furthermore, the length direction of the floating plate 31 is parallel to the third direction, and two second end plates 32 are spaced apart at the bottom of the floating plate 31. The two second end plates 32 are respectively placed at both ends of the length direction of the floating plate 31, and each second end plate 32 is provided with a second weight-reducing hole 321 to reduce the weight of the floating seat 3.

[0051] Optionally, the positioning member 4 may be plate-shaped or block-shaped. In this embodiment, the block-shaped is used as an example. The connection structure between the positioning member 4 and the floating plate 31 refers to the connection structure between the floating plate 31 and the connecting plate 51, and will not be repeated here. The positioning member 4 is located between the two second end plates 32. The second elastic member 322 abuts against the two second end plates 32 and the positioning member 4. The second elastic member 322 is arranged along the third direction. The structure of the second elastic member 322 is arranged with reference to the structure of the first elastic member 522.

[0052] Furthermore, a positioning column 41 is connected to the side of the positioning member 4 away from the floating seat 3, the axis of the positioning column 41 is arranged along the first direction, and the positioning column 41 can be inserted into the inner ring of the stator core. An elastic layer 42 is connected to the side of the positioning member 4 away from the floating seat 3, and the elastic layer 42 is made of elastic material such as rubber or foam, and rubber is used as an example in this embodiment.

[0053] Based on the above, when the positioning member 4 is working, the positioning column 41 is inserted into the inner ring of the stator core, thereby realizing the positioning of the positioning member 4, so that the bottom of the positioning member 4 is aligned with the stator core, preventing the position error between the positioning member 4 and the stator core, and then the positioning member 4 with the elastic layer 42 contacts the top of the stator core, and the elastic layer 42 protects the stator core and prevents the stator core from being damaged. In addition, the friction between the positioning member 4 and the stator core is increased by the deformable elastic layer 42, so that the stator core is not easy to move relative to the positioning member 4, thereby improving the positioning effect of the positioning member 4 on the stator core.

[0054] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A stator core pre-positioning mechanism, used for positioning the stator core, wherein the axis of the stator core is parallel to a first direction, and characterized in that: The stator core pre-positioning mechanism comprises: Positioning seat (1); A sliding seat (2), wherein the sliding seat (2) is slidably connected to the positioning seat (1), and the sliding seat (2) moves along the first direction; a floating seat (3), the floating seat (3) being slidably connected to the sliding seat (2), the floating seat (3) being movable relative to the sliding seat (2) along a second direction, the second direction being perpendicular to the first direction; and A positioning member (4), wherein the positioning member (4) is slidably connected to the floating seat (3), and the positioning member (4) can move relative to the floating seat (3) along a third direction, wherein the third direction is perpendicular to the first direction and the second direction, and the positioning member (4) can abut against the stator core.

2. The stator core pre-positioning mechanism according to claim 1, characterized in that: The sliding seat (2) is connected to a connecting seat (5), and the connecting seat (5) comprises: a connecting plate (51), the connecting plate (51) being connected to the sliding seat (2), the floating seat (3) being slidably connected to the connecting plate (51), and the floating seat (3) moving along the second direction; and A first end plate (52), two of the first end plates (52) are spaced apart on the connecting plate (51), the floating seat (3) is located between the two first end plates (52), and a first elastic member (522) is abutted between the two first end plates (52) and the floating seat (3).

3. The stator core pre-positioning mechanism according to claim 2, characterized in that: The first elastic member (522) is an elastic telescopic rod, and the axis of the elastic telescopic rod is parallel to the second direction.

4. The stator core pre-positioning mechanism according to claim 2, characterized in that: The first end plate (52) is provided with a first weight-reducing hole (521).

5. The stator core pre-positioning mechanism according to claim 2, characterized in that: The floating seat (3) comprises: a floating plate (31), the floating plate (31) being slidably connected to the connecting plate (51), the floating plate (31) moving along the second direction; and A second end plate (32), two second end plates (32) are arranged at intervals on the floating plate (31), the positioning member (4) is located between the two second end plates (32), and a second elastic member (322) is abutted between the two second end plates (32) and the positioning member (4).

6. The stator core pre-positioning mechanism according to claim 5, characterized in that: The second end plate (32) is provided with a second weight-reducing hole (321).

7. The stator core pre-positioning mechanism according to claim 1, characterized in that: A positioning column (41) is provided on one side of the positioning member (4) away from the floating seat (3); the axis of the positioning column (41) is arranged along the first direction; and the positioning column (41) can be inserted into the inner ring of the stator core.

8. The stator core pre-positioning mechanism according to claim 1, characterized in that: An elastic layer (42) is provided on a side of the positioning member (4) away from the floating seat (3).

9. A stator core displacement device, comprising a displacement mechanism (6) and a stator clamp (7) connected to the displacement mechanism (6), characterized in that: It also comprises a stator core pre-positioning mechanism as claimed in any one of claims 1 to 8, wherein the stator core pre-positioning mechanism and the stator clamping jaws (7) are distributed along the first direction.

10. The stator core displacement device according to claim 9, characterized in that: The stator core displacement device also includes: A rotating driving member (8), the rotating driving member (8) is connected to the displacement mechanism (6), the stator clamp (7) is connected to the rotating driving member (8), and the rotating axis of the rotating driving member (8) is arranged parallel to the second direction.

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