Fan-shaped stator punching sheet positioning mechanism

Abstract

The utility model discloses a fan-shaped stator punching sheet positioning mechanism, which belongs to the technical field of lamination, and comprises a positioning mechanism used for supporting stator punching sheets, and a plurality of groove sample rods used for positioning the stator punching sheets are arranged in the positioning mechanism; the groove sample rod comprises a positioning sleeve plate and a butt joint plate, the positioning sleeve plate and the butt joint plate are arranged in a sliding mode, and a containing space capable of containing gas is formed between the positioning sleeve plate and the butt joint plate. According to the fan-shaped stator punching sheet positioning mechanism provided by the utility model, negative pressure is formed by evacuating gas in the driven assembly, so that the side sliding plate is sucked back to the original position, and the gap between the groove sample rod and the stator groove is enlarged, so that a mechanical arm can conveniently take away a stator iron core; and moreover, friction between the fan-shaped stator punching sheet positioning mechanism and the stator punching sheet can be reduced by enlarging the space between the slot sample rod of the gap and the stator slot, so that the grabbing speed of a manipulator can be relatively increased, and meanwhile, the damage to a stator iron core can be reduced.

Description

Technical Field

[0001] This utility model belongs to the field of lamination technology, specifically, it relates to a sector-shaped stator lamination positioning mechanism. Background Technology

[0002] A sector stator is a special stator structure commonly used in electric motors. It consists of multiple sector-shaped stator laminations, which are stacked to form a complete stator.

[0003] The positioning mechanism of stator laminations is mainly used in the stator lamination process of motor manufacturing. Its core function is to ensure that the sector laminations can be accurately positioned and neatly stacked during the lamination process, thereby meeting the precision requirements of the motor stator core.

[0004] Positioning mechanisms are typically equipped with lifting mechanisms. As each stator lamination is stacked, the slotting bar rises synchronously by the thickness of one lamination, thereby reducing the stacking travel, lamination misalignment, and wear. However, the following problems still exist:

[0005] The slotting bar is usually mated with the stator slot of the stator lamination. In order to ensure positioning accuracy, the fit between the slotting bar and the stator slot is usually based on the hole basis system with a tolerance grade of H10. This results in a relatively tight connection between the slotting bar and the stator slot. Due to the need for lifting and moving, the slotting bar will inevitably cause wear to the stator slot of the stator lamination. Moreover, after the lamination is stacked in the automated stator stacking system, a robot arm is needed to grasp the stator core. Because the connection between the slotting bar and the stator slot is tight, it is difficult to increase the grasping speed of the robot arm. Excessive speed will damage the stator core. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a fan-shaped stator lamination positioning mechanism.

[0007] The technical solution of this utility model is applied to an automated stator lamination system. A robotic arm places stator laminations on the top of a positioning platform. After the positioning mechanism is connected, the laminations are stacked by the automated stator lamination system to finally produce a stator core.

[0008] In this invention, a robotic arm inserts the stator laminations into the slotted bar from top to bottom, ensuring that the stator slots of the stator laminations are aligned with the positioning mechanism. During the lamination stacking process, when the stacking height reaches a certain value, the width of the inlay slot needs to be measured. Furthermore, after the laminations are stacked, the width of the inlay slot also needs to be finally inspected to ensure it meets design requirements.

[0009] To achieve the aforementioned objectives, the technical solution adopted by this utility model includes:

[0010] It includes a positioning mechanism for supporting stator laminations, wherein the positioning mechanism is provided with a plurality of slotted bars for positioning stator laminations;

[0011] The grooved sample rod includes a positioning sleeve and a docking plate, which are slidably disposed together. A gas-accommodating space is provided between the positioning sleeve and the docking plate. A side slide plate for adjusting the thickness of the grooved sample rod is slidably disposed inside the positioning sleeve. A driven component for driving the side slide plate to move is provided inside the positioning sleeve. A gas source is provided inside the positioning mechanism, and the gas source can selectively switch gas to enter or exit the accommodating space.

[0012] In this invention, an elastic sealing sleeve is provided between the positioning sleeve and the docking plate. One end of the elastic sealing sleeve is fixedly connected to the positioning sleeve, and the other end of the elastic sealing sleeve is fixedly connected to the docking plate. The elastic sealing sleeve is used to seal the gap between the positioning sleeve and the docking plate so that the gas inside the containment space will not leak out through the gap.

[0013] In this invention, the weight of the positioning sleeve itself is sufficient to maintain a stable upward state when gas is injected into the containment space. Specifically, the positioning sleeve is made of steel as the raw material.

[0014] In this invention, by controlling the gas content in the containment space, the positioning sleeve and the docking plate can be moved relative to each other, so as to adjust the overall height of the groove sample rod during the stacking process.

[0015] In this invention, when gas rushes into the accommodating space, the driven component will be affected by the gas and push the side slide plate to move outward to meet the positioning requirements of the stator lamination. When it is necessary to remove the stator core after lamination is completed, the gas in the accommodating space is extracted to form a negative pressure and drive the driven component to move and reset the positioning plate, thereby expanding the gap between the slot bar and the stator slot so that the stator core can be smoothly removed.

[0016] Preferably, the stator lamination includes a lamination body, the lamination body having multiple stator slots, the positioning sleeve being connected to the stator slots, and at least two slotted rods jointly positioning one lamination body.

[0017] Preferably, the positioning mechanism includes a vertically slidable positioning platform and a connecting seat, wherein the positioning platform and the connecting seat are capable of sliding relative to each other.

[0018] In this invention, a guide assembly is provided between the positioning platform and the connecting seat. The guide assembly includes a connecting sleeve and a guide rod. The connecting sleeve and the guide rod are sleeved together. The connecting sleeve is fixedly connected to the positioning platform, and the guide rod is fixedly connected to the connecting seat. The vertical movement of the positioning platform can be guided by the relative sliding between the connecting sleeve and the guide rod.

[0019] In this utility model, an electric telescopic cylinder is fixedly connected to the top of the connecting seat. The telescopic end of the electric telescopic cylinder is fixedly connected to the positioning platform, and the distance between the positioning platform and the connecting seat can be adjusted by the electric telescopic cylinder.

[0020] Preferably, the positioning mechanism is provided with a gas reversing valve, and the connecting seat is provided with a gas supply pipe. The gas supply pipe is used to exchange gas with the containing space. The gas reversing valve is connected to the gas supply pipe and can selectively supply gas to or exhaust gas into the containing space.

[0021] Preferably, the main gas supply pipe includes a plurality of gas supply branch pipes integrally formed therewith, and the accommodating space of each of the grooved rods is in communication with the interior of at least one of the gas supply branch pipes.

[0022] Preferably, the gas source includes an air pump installed in the positioning mechanism, and the air pump is connected to the gas supply main pipe through an air circuit reversing valve.

[0023] Compared with the prior art, the advantages of this utility model include:

[0024] (1) The fan-shaped stator lamination positioning mechanism provided by this utility model can maintain the positioning function by injecting gas into the accommodating space to make the positioning sleeve move upward. After the lamination process is carried out, the positioning sleeve can be reset by expelling the gas, so as to facilitate the subsequent gripping of the stator core by the robot arm.

[0025] (2) The fan-shaped stator lamination positioning mechanism provided by this utility model has gas filling the accommodating space in the positioning state, so that the side slide is pushed out of the positioning sleeve by the gas to maintain the positioning function of the slot bar. After the lamination is stacked, the gas in the driven component is evacuated to form a negative pressure, so that the side slide is sucked back to its original position. At this time, the gap between the slot bar and the stator slot is expanded, which not only makes it easier for the robot to take away the stator core, but also reduces the friction between the fan-shaped stator lamination positioning mechanism and the stator lamination, so that the gripping speed of the robot can be relatively improved while reducing the damage to the stator core. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is an overall schematic diagram of the sector-shaped stator lamination positioning mechanism in this utility model;

[0028] Figure 2 This is a schematic diagram of the guide component in this utility model;

[0029] Figure 3 This is a cross-sectional structural diagram of the positioning platform in this utility model;

[0030] Figure 4 This is a schematic diagram of the top cross-section of the groove sample bar in this utility model;

[0031] Figure 5 This is a schematic diagram of the driven component in this utility model;

[0032] Figure 6 for Figure 3 Enlarged view of the structure at point A in the middle.

[0033] Figure label:

[0034] 1. Stator lamination; 11. Lamination body; 12. Stator slot; 2. Positioning mechanism; 21. Positioning platform; 22. Connecting seat; 23. Base; 3. Guide assembly; 31. Connecting sleeve; 32. Guide rod; 4. Slotted rod; 41. Positioning sleeve; 42. Gas supply branch pipe; 43. Connecting plate; 44. Side sliding plate; 45. Elastic sealing sleeve; 46. Gas supply main pipe; 47. Gas circuit reversing valve; 5. Air pump; 6. Electric telescopic cylinder; 7. Driven assembly; 71. Push needle; 72. Sealing gasket; 73. Sealing plate; 74. Driven sleeve. Detailed Implementation

[0035] In view of the shortcomings of the prior art, the inventor of this utility model has, through long-term research and extensive practice, proposed the technical solution of this utility model. The following will further explain and illustrate the technical solution, its implementation process, and its principles in conjunction with the accompanying drawings and specific implementation examples.

[0036] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, the present invention covers any substitutions, modifications, equivalent methods and solutions made within the spirit, principles and scope of the present invention as defined by the claims. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] In the description of this application, the terms "first," "second," "third," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," and similar words, do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including," and similar words, mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. The terms "connected" or "linked," and similar words, are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0038] In the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, when using positional terms such as "both sides," "outer side," and "upper and lower," it should be understood that they are used only for ease of understanding and description, taking into account that the structure may be oriented to other positions.

[0039] In the description of this application, unless otherwise expressly specified and limited, the technical or scientific terms used shall have the ordinary meaning understood by a person with ordinary skills in the art to which this application pertains. Terms such as “installation,” “connection,” and “joining” shall be interpreted broadly, for example, as fixed connection, detachable connection, mating connection, or integral connection. For a person skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0040] This utility model embodiment is intended to introduce and explain the structural composition of the sector-shaped stator lamination positioning mechanism and the cooperation relationship between the various components. Unless otherwise specified, the dimensions, materials, and manufacturing processes of the various components in the sector-shaped stator lamination positioning mechanism in this utility model embodiment can be selected according to specific circumstances, and no special limitations or explanations are made here.

[0041] Furthermore, to provide the public with a better understanding of this utility model, certain specific details are described in detail in the following description. However, those skilled in the art can fully understand this utility model even without these detailed descriptions. Example

[0042] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A fan-shaped stator lamination positioning mechanism includes a positioning mechanism 2, which is used to support the stator lamination 1.

[0043] It should be noted that there are 9 stator laminations 1, and the stator laminations 1 include lamination bodies 11, and multiple stator slots 12 are formed in the lamination bodies 11.

[0044] The positioning mechanism 2 includes a positioning platform 21, which supports the stator lamination 1. A guide component 3 is provided at the bottom of the positioning platform 21. The guide component 3 includes multiple connecting sleeves 31 fixedly installed at the bottom of the positioning platform 21. A guide rod 32 is inserted into the multiple connecting sleeves 31. The bottom of the guide rod 32 is fixedly connected to a connecting seat 22. The positioning platform 21 can move vertically by relative sliding between the connecting sleeves 31 and the guide rod 32. The bottom of the connecting seat 22 is connected to a base 23.

[0045] Please see Figure 3 , Figure 4 and Figure 6 The fan-shaped stator lamination positioning mechanism includes multiple slotted bars 4 for positioning the stator laminations 1.

[0046] Preferably, at least two slotted rods 4 jointly position one lamination body 11, that is, the slotted rods 4 are inserted into the stator slots 12 to fix the position of the lamination body 11 so that multiple lamination bodies 11 can be positioned and stacked together.

[0047] Specifically, the positioning platform 21 has a positioning port through which the groove sample rod 4 passes.

[0048] Preferably, the grooved rod 4 includes a positioning sleeve 41 and a docking plate 43, which are slidably arranged. A gas-accommodating space is provided between the positioning sleeve 41 and the docking plate 43. A side slide plate 44 for cooperating with the grooved rod 4 to position the stator lamination 1 is slidably arranged inside the positioning sleeve 41. A driven component 7 for driving the side slide plate 44 to move is provided inside the positioning sleeve 41. A gas source is provided inside the positioning mechanism 2. The gas source can selectively switch the gas to enter or exit the accommodating space.

[0049] Specifically, the docking plate 43 is fixedly connected to the connecting seat 22, and the positioning sleeve 41 extends through the positioning port to the top of the positioning platform 21 and docks with the stator slot 12 at the corresponding position. The positioning sleeve 41 has a storage opening for the side slide plate 44 to move. The side slide plate 44 is slidably set with the storage opening. When the side slide plate 44 is fully inserted into the storage opening, the overall thickness of the slot rod 4 will decrease, making the gap between the slot rod 4 and the stator slot 12 larger, so that it can easily pass through the stator slot 12. After the side slide plate 44 extends out of the positioning sleeve 41, the overall thickness of the slot rod 4 can meet the positioning requirements of the counter-punch sheet 11.

[0050] In this embodiment, an elastic sealing sleeve 45 is provided between the positioning sleeve 41 and the docking plate 43. One end of the elastic sealing sleeve 45 is fixedly connected to the positioning sleeve 41, and the other end of the elastic sealing sleeve 45 is fixedly connected to the docking plate 43. The elastic sealing sleeve 45 is used to seal the gap between the positioning sleeve 41 and the docking plate 43 so that the gas inside the containment space will not leak out through the gap.

[0051] Specifically, the number of driven components 7 is at least two. In this embodiment, four driven components 7 are used. Each driven component 7 includes a driven sleeve 74 fixedly connected inside the positioning sleeve 41. The two ends of the driven sleeve 74 have different diameters. The diameter inside the receiving space is larger, and the diameter outside the receiving space is smaller. A push pin 71 is inserted into the smaller diameter end. The push pin 71 is fixedly connected to the side slide plate 44. A sealing plate 73 is slidably connected inside the driven sleeve 74. The sealing plate 73 can form a seal with the smaller diameter end of the driven sleeve 74. The push pin 71 is fixedly connected to the sealing plate 73. A sealing gasket 72 is fixedly connected to the smaller diameter end of the driven sleeve 74. A sealing hole for the push pin 71 to move is opened through the sealing gasket 72, so that when the push pin 71 moves, it can prevent the gas inside the receiving space from leaking through the driven sleeve 74.

[0052] Preferably, the positioning mechanism 2 is provided with a gas reversing valve 47, and the connecting seat 22 is provided with a gas supply main pipe 46. The gas supply main pipe 46 is used for gas exchange with the containing space. The gas reversing valve 47 is connected to the gas supply main pipe 46. The gas reversing valve 47 can selectively supply gas to or exhaust gas into the containing space. The gas supply main pipe 46 includes a plurality of gas supply branch pipes 42 integrally formed therewith. The containing space of each grooved rod 4 is in communication with at least one gas supply branch pipe 42.

[0053] Specifically, there is only one main gas supply pipe 46, while there are multiple gas supply branch pipes 42 connected to the main gas supply pipe 46. Specifically, there are 18 slotted rods 4 and 36 gas supply branch pipes 42, so that every two gas supply branch pipes 42 can jointly supply or extract gas into a containment space. It should be noted that in this embodiment, the connection method between the positioning mechanism 2 and the automated stator lamination system has not been adjusted and is still installed in the conventional way, which will not be described in detail here.

[0054] Preferably, the gas source includes an air pump 5 disposed in the positioning mechanism 2. The air pump 5 is fixedly connected to the top of the base 23 and is internally connected to the gas supply main pipe 46 through the air circuit reversing valve 47.

[0055] In this embodiment, the specific connection scheme of the air pump 5, the air circuit reversing valve 47, and the air delivery main pipe 46 is as follows:

[0056] It should be noted that the air circuit reversing valve 47 is specifically a two-position five-way reversing valve;

[0057] Interface instructions for a 2-position 5-way directional valve:

[0058] P port: Air inlet, connected to air pump 5.

[0059] Ports A and B: Working ports, used to connect to the main gas supply pipe 46 of the actuator.

[0060] R port and S port: Exhaust ports, used to discharge gas.

[0061] Connection steps:

[0062] S1. Connect the output of air pump 5 to port P of the reversing valve. Air pump 5 provides compressed air as a power source;

[0063] S2. Connect the pipe to port A of the reversing valve;

[0064] S3, R port and S port are exhaust ports, which are usually directly connected to the atmosphere to discharge gases. These exhaust ports can be connected to pipes to lead to a safe place, or directly discharged into the surrounding environment.

[0065] Intake process:

[0066] When the two-position five-way reversing valve is switched to connect port P and port A, compressed air enters the reversing valve from the air pump 5 and enters the main air supply pipe 46 through port A to achieve air intake. It should be noted that the gas used in this embodiment is air.

[0067] At this time, port B is connected to port S. If gas enters port B, it will be discharged through port S.

[0068] Exhalation process:

[0069] When the two-position five-way directional valve is switched to connect port P and port B, compressed air enters the two-position five-way directional valve from the main gas supply pipe 46 and enters port S through port B to achieve exhaust.

[0070] At this time, port A is connected to port R, and the gas from port A is discharged through port R.

[0071] The connection method allows the air pump 5, the air circuit reversing valve 47, and the main air supply pipe 46 to switch between flexibly accepting air intake and extracting gas.

[0072] In this embodiment, the specific operation for positioning the stator lamination 1 is as follows:

[0073] S1. The robotic arm inserts the stator lamination 1 into the slot bar 4 from top to bottom, ensuring that the stator slot 12 of the stator lamination 1 is aligned with the positioning mechanism 2.

[0074] S2. In the initial state, the side slide plate 44 is stored inside the positioning sleeve plate 41, and the sealing plate 73 is located at one end close to the receiving space. By starting the air pump 5, air is supplied into the receiving space through the air supply branch pipe 42, so that the gas pushes the sealing plate 73 and the push needle 71 connected in sequence to move, so that the side slide plate 44 moves out of the positioning sleeve plate 41, thereby meeting the positioning requirements of the stator lamination 1.

[0075] S3. Repeat step S1 to perform lamination using the automated stator lamination system. At the same time, switch the main gas supply pipe 46 to the air intake process through the air circuit reversing valve 47. Start the air pump 5 to fill the housing space with air through the air supply branch pipe 42. By controlling the amount of air intake in the housing space per unit time, the positioning sleeve 41 can be moved synchronously according to the lamination speed to meet the positioning requirements.

[0076] It should be noted that the control of the intake volume per unit time is accomplished through routine adjustments to the operating parameters of air pump 5, which will not be elaborated upon here.

[0077] S4. After lamination is completed, the gas supply main pipe 46 is switched to the gas output process through the gas reversing valve 47. The gas inside the containment space is extracted by the gas supply main pipe 46 and the gas supply branch pipe 42 through the start of the air pump 5. Since the internal space of the driven sleeve 74 is small, the gas inside the driven sleeve 74 is first evacuated to form a negative pressure, which attracts the sealing plate 73 to move into the containment space, thereby pulling the side slide plate 44 to move and reset. At this time, the gap between the slot rod 4 and the stator slot 12 will expand. The gas inside the containment space is continuously extracted, causing the positioning sleeve plate 41 to descend and reset. Then the air pump 5 is turned off. At this time, the stator core made by the lamination can be taken out by the robot arm.

[0078] It should be understood that the above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. It should not be considered that the specific implementation of this utility model is limited to these descriptions. For those skilled in the art to which this utility model pertains, several simple deductions or substitutions can be made without departing from the concept of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A sector-shaped stator lamination positioning mechanism, characterized in that, It includes a positioning mechanism (2) for supporting stator laminations (1), wherein the positioning mechanism (2) is provided with a plurality of slotted bars (4) for positioning stator laminations (1). The grooved rod (4) includes a positioning sleeve (41) and a docking plate (43). The positioning sleeve (41) and the docking plate (43) are slidably arranged. A gas-accommodating space is provided between the positioning sleeve (41) and the docking plate (43). A side slide plate (44) for cooperating with the grooved rod (4) to position the stator lamination (1) is slidably arranged in the positioning sleeve (41). A driven component (7) for driving the side slide plate (44) to move is provided in the positioning sleeve (41). A gas source is provided in the positioning mechanism (2). The gas source can selectively switch the gas to enter or exit the accommodating space.

2. The sector-shaped stator lamination positioning mechanism according to claim 1, characterized in that: The stator lamination (1) includes a lamination body (11), and at least two slotted bars (4) jointly position one lamination body (11).

3. The sector-shaped stator lamination positioning mechanism according to claim 1, characterized in that: The positioning mechanism (2) includes a vertically arranged positioning platform (21) and a connecting seat (22), which can slide relative to each other.

4. The sector-shaped stator lamination positioning mechanism according to claim 1, characterized in that: The positioning mechanism (2) is provided with a gas reversing valve (47) and a gas supply pipe (46). The gas supply pipe (46) is used to exchange gas with the containment space. The gas reversing valve (47) is connected to the gas supply pipe (46). The gas reversing valve (47) can selectively supply gas to the containment space or exhaust gas.

5. The sector-shaped stator lamination positioning mechanism according to claim 4, characterized in that: The main gas supply pipe (46) includes a plurality of gas supply branch pipes (42) integrally formed therewith, and the accommodating space of each of the grooved rods (4) is in communication with the interior of at least one of the gas supply branch pipes (42).

6. The sector-shaped stator lamination positioning mechanism according to claim 4, characterized in that: The gas source includes an air pump (5) installed in the positioning mechanism (2), and the air pump (5) is connected to the gas supply main pipe (46) through the gas reversing valve (47).

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