Stator key press fitting device

Abstract

The application discloses a stator key pressing device. It belongs to the technical field of motor assembly. The stator key pressing device comprises a positioning framework, a clamping mechanism, a key feeding mechanism and a key pressing mechanism. The clamping mechanism comprises a first clamping block, a second clamping block and a clamping driving element. The first clamping block is provided with a key pressing guide groove. When the first clamping block abuts against the stator, the slot of the key pressing guide groove is adapted to be opposite to the slot of the stator key groove of the stator and jointly forms a guide key hole. The key feeding mechanism is used for feeding the stator key above the guide key hole. The key pressing mechanism is used for pressing the stator key on the key feeding mechanism into the guide key hole, so as to realize the automation of stator key pressing. The stator key pressing device is beneficial to reducing the labor cost of stator key pressing. The key pressing guide groove can guide the stator key, so that the stator key moves along the key pressing guide groove, and the stator key is pressed into the stator key groove of the stator, so as to prevent the stator key from damaging and scratching the iron core of the stator. The stator key pressing device is beneficial to improving the qualified rate of motor production and manufacturing and reducing the cost of motor production and manufacturing.

Description

Technical Field

[0001] The present invention relates to the technical field of motor assembly, and in particular to a stator key press-fitting device. Background Art

[0002] The stator of the motor is connected to the motor housing through a flat key. When the motor is manufactured, the flat key needs to be assembled into the keyway of the stator.

[0003] In the related art, manual assembly of flat keys is usually adopted, which has a low degree of automation and low manual assembly efficiency. Moreover, when manually assembling the flat keys, the flat keys are easily damaged or scratched the stator core, resulting in a low qualification rate of motor production and high production costs. Summary of the Invention

[0004] The present invention aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. To this end, the present invention provides a stator key press-fitting device, which is conducive to reducing the cost of motor production.

[0005] According to an embodiment of the present invention, a stator key press-fitting device includes: a positioning skeleton, a clamping mechanism, a key feeding mechanism and a key pressing mechanism, the positioning skeleton has a positioning hole and a first guide groove and a second guide groove connected to the positioning hole, the positioning hole is suitable for accommodating a stator, and the first guide groove and the second guide groove are arranged opposite to each other in the radial direction of the positioning hole; the clamping mechanism includes: a first clamping block, a second clamping block and a clamping drive member, the first clamping block is movably arranged in the first guide groove, the second clamping block is movably arranged in the second guide groove, the clamping drive member is used to drive the first clamping block and the second clamping block to move towards and away from each other, the first clamping block has a key pressing guide groove, when the first clamping block abuts against the stator, the notch of the key pressing guide groove is suitable for being opposite to the notch of the stator key groove of the stator and jointly forming a guide key hole; the key feeding mechanism is used to transport the stator key to the top of the guide key hole; the key pressing mechanism is used to press the stator key on the key feeding mechanism into the guide key hole.

[0006] According to the stator key press-fitting device of the embodiment of the present invention, the stator key press-fitting can be automated, which is beneficial to reducing the labor cost of stator key press-fitting and completing the stator key press-fitting stator key stably and efficiently. The key press guide groove on the first clamping block can guide the stator key to move along the key press guide groove, so as to facilitate the stator key to be pressed into the stator key slot of the stator and prevent the stator key from damaging or scratching the stator core, which is beneficial to improving the qualification rate of motor production and reducing the cost of motor production.

[0007] According to some embodiments of the present invention, the key feeding mechanism includes: a key feeding slide and a slide driving member, the first clamping block has a slide guide groove connected to the key pressing guide groove, the key feeding slide is movably arranged in the slide guide groove, the key feeding slide has a first key feeding through hole suitable for accommodating the stator key; the slide driving member is installed on the positioning skeleton and connected to the key feeding slide, the slide driving member is used to drive the key feeding slide to move along the slide guide groove to a first preset position and a second preset position, when the key feeding slide moves to the first preset position, the axis of the first key feeding through hole is collinear with the axis of the guide key hole, when the key feeding slide moves to the second preset position, the first key feeding through hole is located on the outside of the positioning skeleton.

[0008] According to some embodiments of the present invention, the key-feeding slide has a first detection hole connected to the first key-feeding through hole; a first key sensor is provided on the first clamping block, and when the key-feeding slide moves to the second preset position, the detection end of the first key sensor is opposite to the first detection hole.

[0009] According to some embodiments of the present invention, the clamping mechanism further includes a limit block, which is installed on the first clamping block. When the key-feeding slide moves to the first preset position, the key-feeding slide abuts against the limit block.

[0010] According to some embodiments of the present invention, the key feeding mechanism further includes: a key feeding block and a key block driving member, the key feeding block is arranged above the key feeding slide and located on the outside of the positioning skeleton, the key feeding block has a second key feeding through hole suitable for accommodating the stator key; the key block driving member is installed on the positioning skeleton and connected to the key feeding block, the key block driving member is used to drive the key feeding block to move to a third preset position and a fourth preset position, when the key feeding block moves to the third preset position, the axis of the second key feeding through hole is collinear with the axis of the first key feeding through hole at the second preset position, when the key feeding block moves to the fourth preset position, the second key feeding through hole is located directly above the key feeding slide at the second preset position and staggered with the first key feeding through hole.

[0011] According to some embodiments of the present invention, the upper surface of the key feeding slide has a limiting key groove connected to the first key feeding through hole, and the extension direction of the limiting key groove, the extension direction of the slide guide groove and the movement direction of the key block driving member driving the key feeding block are the same.

[0012] According to some embodiments of the present invention, the key-feeding block has a second detection hole connected to the second key-feeding through hole, and a second key sensor is installed in the second detection hole.

[0013] According to some embodiments of the present invention, the clamping drive component includes: a first cylinder and a second cylinder, the first cylinder is installed on the positioning frame, and the first cylinder is used to drive the first clamping block to move; the second cylinder is installed on the positioning frame, and the second cylinder is used to drive the second clamping block to move.

[0014] According to some embodiments of the present invention, the driving force of the second cylinder on the second clamping block is greater than the driving force of the first cylinder on the first clamping block.

[0015] According to some embodiments of the present invention, the groove depth of the key guide groove is smaller than the groove depth of the stator key groove, and / or the groove width of the key guide groove is larger than the groove width of the stator key groove.

[0016] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a three-dimensional diagram of the stator key press-fitting device when the key-feeding slide bar is located at the first preset position and the key-feeding block is located at the fourth preset position. Figure 1 ;

[0018] Figure 2 The present invention is a three-dimensional diagram of the stator key press-fitting device when the key-feeding slide bar is located at the first preset position and the key-feeding block is located at the fourth preset position. Figure 2 ;

[0019] Figure 3 is a perspective view of a key feeding mechanism, a first clamping block, and a first cylinder according to an embodiment of the present invention;

[0020] Figure 4 is a perspective view of a key-feeding slider and a slider driving member according to an embodiment of the present invention;

[0021] Figure 5 is a perspective view of the stator key press-fitting device according to an embodiment of the present invention when the key-feeding slide bar is located at the second preset position and the key-feeding block is located at the fourth preset position;

[0022] Figure 6 is a perspective view of a first clamping block according to an embodiment of the present invention;

[0023] Figure 7 is a perspective view of a key feeding block, a key block driving member, and a second key sensor according to an embodiment of the present invention;

[0024] Figure 8 is a perspective view of the stator key press-fitting device according to an embodiment of the present invention when the key-feeding slide bar is located at the second preset position and the key-feeding block is located at the third preset position;

[0025] Figure 9 is a perspective view of a key feeding block according to an embodiment of the present invention;

[0026] Figure 10 4 is a perspective view of a key pressing mechanism according to an embodiment of the present invention.

[0027] Reference numerals:

[0028] Positioning frame 1; positioning hole 11; first guide groove 12; second guide groove 13;

[0029] Clamping mechanism 2; first clamping block 21; key guide groove 211; slide guide groove 212; clamping block body 213; first guide groove 212a; support body 214; second guide groove 212b; second clamping block 22; clamping drive 23; first cylinder 231; first cylinder body 2311; first push rod 2312; second cylinder 232; second cylinder body 2321; second push rod 2322; limit block 24; pressurizing valve 25;

[0030] Key feeding mechanism 3; key feeding slide 31; first key feeding through hole 311; first detection hole 312; limit key slot 313; slide driver 32; first driving cylinder 321; connecting block 322; first guide rail 323; first slider 324; key feeding block 33; second key feeding through hole 331; second detection hole 332; key block driver 34; second driving cylinder 341; driver block 342; second guide rail 343; second slider 344; first key sensor 35; second key sensor 36;

[0031] Key pressing mechanism 4; key pressing block 41; key pressing ejector pin 42; mounting block 43;

[0032] Stator key press-fitting device 10. DETAILED DESCRIPTION

[0033] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0034] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 invention.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0036] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections, or communication; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0037] The following combination Figures 1-10 The stator key press-fitting apparatus 10 according to an embodiment of the present invention will be described in detail.

[0038] Reference Figure 1 and Figure 2 As shown, the stator key press-fitting device 10 according to an embodiment of the present invention includes a positioning skeleton 1, a clamping mechanism 2, a key feeding mechanism 3 and a key pressing mechanism 4. The positioning skeleton 1 has a positioning hole 11 and a first guide groove 12 and a second guide groove 13 connected to the positioning hole 11. The positioning hole 11 is suitable for accommodating the stator. The first guide groove 12 and the second guide groove 13 are arranged opposite to each other in the radial direction of the positioning hole 11. The clamping mechanism 2 includes a first clamping block 21, a second clamping block 22 and a clamping driving member 23. The first clamping block 21 is movably arranged in the first guide groove 12, and the second clamping block 22 is movably arranged in the second guide groove 13. The guide groove 13 and the clamping drive member 23 are used to drive the first clamping block 21 and the second clamping block 22 toward and away from each other. The first clamping block 21 has a key pressing guide groove 211. When the first clamping block 21 abuts the stator, the notch of the key pressing guide groove 211 is adapted to align with the notch of the stator key slot of the stator, thereby forming a guide key hole. The key feeding mechanism 3 is used to transport the stator key to the top of the guide key hole, and the key pressing mechanism 4 is used to press the stator key on the key feeding mechanism 3 into the guide key hole, thereby automating the stator key press-fitting process, thereby reducing the labor cost of stator key press-fitting and completing the stator key press-fitting process stably and efficiently. The stator key can be a flat key.

[0039] It can be understood that the first guide groove 12 can guide the first clamping block 21 so that the first clamping block 21 moves along the first guide groove 12, and the second guide groove 13 can guide the second clamping block 22 so that the second clamping block 22 moves along the second guide groove 13. The driving member drives the first clamping block 21 and the second clamping block 22 to approach each other so that the first clamping block 21 and the second clamping block 22 can jointly clamp the stator so that the stator is fixed to the stator key pressing device 10, avoiding the stator key from shaking during pressing, so as to facilitate pressing the stator key into the stator key slot of the stator. The driving member drives the first clamping block 21 and the second clamping block 22 to move away from each other so that the first clamping block 21 and the second clamping block 22 are respectively separated from the stator, so that the stator can be removed from the stator key pressing device 10 after the stator key is pressed.

[0040] Specifically, when the stator key is pressed, the clamping drive member 23 can drive the first clamping block 21 and the second clamping block 22 to move closer to each other. Figure 2 In the left and right directions, the first clamping block 21 can abut against the left end of the stator, and the second clamping block 22 can abut against the right end of the stator. The first clamping block 21 and the second clamping block 22 jointly clamp the stator. At this time, the notch of the key pressing guide groove 211 is opposite to the notch of the stator key groove of the stator and together form a guide key hole. The key feeding mechanism 3 can transport the stator key to the top of the guide key hole, and the key pressing mechanism 4 can press the stator key on the key feeding mechanism 3 into the guide key hole, thereby realizing the automation of the stator press-fitting.

[0041] When the key pressing mechanism 4 presses the stator key on the key feeding mechanism 3 into the guide key hole, the key pressing guide groove 211 on the first clamping block 21 can guide the stator key so that the stator key moves along the key pressing guide groove 211, which is beneficial to ensuring the position accuracy of the stator key, so as to facilitate the press-fitting of the stator key into the stator key slot of the stator, which is beneficial to improving the press-fitting efficiency of the stator key. At the same time, guiding the stator key through the key pressing guide groove 211 can prevent the stator key from deviating from the preset path during the press-fitting process, prevent the stator key from damaging or scratching the stator core, and is beneficial to improving the qualified rate of motor production and reducing the production cost of the motor.

[0042] According to the stator key press-fitting device 10 of the embodiment of the present invention, the stator key press-fitting can be automated, which is beneficial to reducing the labor cost of stator key press-fitting and completing the stator key press-fitting stator key stably and efficiently. The key press guide groove 211 on the first clamping block 21 can guide the stator key so that the stator key moves along the key press guide groove 211, so as to facilitate the stator key to be pressed into the stator key slot of the stator and prevent the stator key from damaging or scratching the stator core, which is beneficial to improving the qualification rate of motor production and reducing the cost of motor production.

[0043] In some embodiments of the present invention, reference Figure 3 and Figure 4As shown, the key feeding mechanism 3 includes: a key feeding slide 31 and a slide driving member 32, the first clamping block 21 has a slide guide groove 212 connected to the key pressing guide groove 211, the key feeding slide 31 is movably arranged in the slide guide groove 212, the key feeding slide 31 has a first key feeding through hole 311 suitable for accommodating the stator key, the slide driving member 32 is installed on the positioning frame 1 and connected to the key feeding slide 31, the slide driving member 32 is used to drive the key feeding slide 31 to move along the slide guide groove 212 to the first preset position and the second preset position, refer to Figure 2 As shown, when the key feeding slide bar 31 moves to the first preset position, the axis of the first key feeding through hole 311 is collinear with the axis of the key guide hole. Figure 5 As shown, when the key-feeding slide bar 31 moves to the second preset position, the first key-feeding through hole 311 is located outside the positioning frame 1 .

[0044] It is understood that the slide guide groove 212 can guide the key feed slide 31 so that the key feed slide 31 moves along the slide guide groove 212. When the stator key is pressed, the slide driver 32 can first drive the key feed slide 31 to move to the second preset position. The loading mechanism for loading the stator key can feed the stator key into the first key feed through hole 311. Then, the slide driver 32 can drive the key feed slide 31 along the slide guide groove 212 to move to the first preset position so that the axis of the first key feed through hole 311 is collinear with the axis of the guide key hole. Since the key pressing guide groove 211 is connected to the slide guide groove 212, the first key feed through hole 311 is now connected to the guide key hole. The key pressing mechanism 4 can press the stator key in the first key feed through hole 311 into the guide key hole to achieve the press-fitting of the stator key. The loading mechanism can be a vibration plate.

[0045] Specifically, when the stator key is being loaded, the key feed slide 31 is located at the second preset position, and the first key feed through hole 311 is located on the outside of the positioning skeleton 1, which can avoid the stator key from interfering with the positioning skeleton 1 during loading, so that the stator key can smoothly enter the first key feed through hole 311. In addition, when there is a stator key in the first key feed through hole 311, the slide guide groove 212 can support the stator key to prevent the stator key from detaching from the first key feed through hole 311.

[0046] Reference Figure 6 As shown, the first clamping block 21 may include a clamping block body 213 and a supporting body 214 that are fixedly connected. The clamping block body 213 is connected to the clamping driving member 23. A first guide groove 212a is provided on the clamping block body 213, and a second guide groove 212b is provided on the supporting body 214. The extension direction of the first guide groove 212a and the second guide groove 212b is the same. The first guide groove 212a and the second guide groove 212b can together form a slide guide groove 212 to guide the key feed slide 31 so that the key feed slide 31 moves along the slide guide groove 212.

[0047] Reference Figure 4As shown, the slide driving member 32 may include a first driving cylinder 321, a connecting block 322, a first guide rail 323 and a first slider 324. The first driving cylinder 321 and the first guide rail 323 are both fixedly connected to the positioning frame 1. The first slider 324 is suitable for guiding and cooperating with the first guide rail 323, and the first slider 324 is slidably connected to the first guide rail 323. The extension direction of the first guide rail 323 is the same as the extension direction of the slide guide groove 212. The first slider 324, the first driving cylinder 321 and the key feeding slide 31 are all fixedly connected to the connecting block 322. The first driving block 342 is suitable for driving the connecting block 322 to move. Under the guiding cooperation of the first slider 324 and the first guide rail 323, the connecting block 322 can move along the extension direction of the first guide rail 323, and the connecting block 322 drives the key feeding slide 31 to move along the slide guide groove 212. The first driving cylinder 321 can be a rodless cylinder.

[0048] In some embodiments of the present invention, reference Figure 3 and Figure 5 As shown, the key-feeding slide 31 has a first detection hole 312 connected to the first key-feeding through hole 311, and a first key sensor 35 is provided on the first clamping block 21. When the key-feeding slide 31 moves to the second preset position (i.e. Figure 5 The detection end of the first key sensor 35 is opposite to the first detection hole 312, and the first key sensor 35 can detect whether there is a stator key in the first key feeding through hole 311 through the first detection hole 312, wherein the first key sensor 35 can be an optical fiber sensor, and the first key sensor 35 can emit detection light into the first key feeding through hole 311 through the first detection hole 312 to detect whether there is a stator key in the first key feeding through hole 311.

[0049] It can be understood that when the first key sensor 35 detects that there is a stator key in the first key feed hole 311, the slide drive 32 can drive the key feed slide 31 to move along the slide guide groove 212 to the first preset position, so that the axis of the first key feed hole 311 is colinear with the axis of the guide key hole, so as to facilitate the stator key to enter the guide key hole from the first key feed hole 311.

[0050] In some embodiments of the present invention, reference Figure 2 As shown, the clamping mechanism 2 also includes a limit block 24, which is installed on the first clamping block 21. When the key feeding slide 31 moves to the first preset position, the key feeding slide 31 abuts against the limit block 24 to prevent the positioning slide from continuing to move, thereby realizing the positioning of the key feeding slide 31, so as to ensure that the axis of the first key feeding through hole 311 is colinear with the axis of the guide key hole, and ensure that the stator key in the first key feeding through hole 311 can smoothly enter the guide key hole.

[0051] In some embodiments of the present invention, reference Figure 3 、 Figure 7 and Figure 8 As shown, the key feeding mechanism 3 also includes: a key feeding block 33 and a key block driving member 34. The key feeding block 33 is arranged above the key feeding slide 31 and is located on the outside of the positioning frame 1. The key feeding block 33 has a second key feeding through hole 331 suitable for accommodating the stator key. The key block driving member 34 is installed on the positioning frame 1 and connected to the key feeding block 33. The key block driving member 34 is used to drive the key feeding block 33 to move to the third preset position and the fourth preset position. Figure 8 As shown, when the key feeding block 33 moves to the third preset position, the axis of the second key feeding through hole 331 is collinear with the axis of the first key feeding through hole 311 at the second preset position. Figure 5 As shown, when the key feeding block 33 moves to the fourth preset position, the second key feeding through hole 331 is located directly above the key feeding slide bar 31 at the second preset position and is staggered with the first key feeding through hole 311 .

[0052] It can be understood that when the stator key is being loaded, the key feeding slide 31 can be located at the second preset position, the key block driving member 34 can drive the key feeding block 33 to move to the fourth preset position, and the loading mechanism can feed the stator key into the second key feeding through hole 331 of the key feeding block 33. At this time, the second key feeding through hole 331 is located directly above the key feeding slide 31. The stator key in the second key feeding through hole 331 can be in contact with the key feeding slide 31 under the action of its own gravity. The key feeding slide 31 can support and limit the stator key to prevent the stator key from detaching from the second key feeding through hole 331.

[0053] After the stator key is loaded, at least part of the stator key is located in the second key feeding hole 331, and the key block driving member 34 can drive the key feeding block 33 to move to the third preset position so that the axis of the second key feeding hole 331 is collinear with the axis of the first key feeding hole 311, and the stator key in the second key feeding hole 331 can fall into the first key feeding hole 311 under the action of its own gravity. The first key sensor 35 can detect that there is a stator key in the first key feeding hole 311, and then the slide driving member 32 can drive the key feeding slide 31 to move along the slide guide groove 212 to the first preset position so that the axis of the first key feeding hole 311 is collinear with the axis of the guide key hole, so as to facilitate the stator key to enter the guide key hole from the first key feeding hole 311.

[0054] It should be noted that the key feeding block 33 is arranged above the key feeding slide 31 and located on the outside of the positioning frame 1, so as to match the position of the loading mechanism. Compared with the key feeding slide 31 directly receiving the stator key from the loading mechanism, the stroke of the key feeding slide 31 in the left and right directions can be reduced, which is conducive to reducing the design difficulty of the slide drive 32.

[0055] Reference Figure 7As shown, the key block driving member 34 comprises a second driving cylinder 341, a driving block 342, a second guide rail 343 and a second sliding block 344, the second driving cylinder 341 and the second guide rail 343 are fixedly connected with the positioning framework 1, the second sliding block 344 is adapted to be guided and matched with the second guide rail 343, and the second sliding block 344 is slidably connected with the second guide rail 343, the extending direction of the second guide rail 343 can be the same as the extending direction of the key feeding slide 31, the second sliding block 344, the second driving cylinder 341 and the key feeding block 33 are all connected with the driving block 342, the second driving cylinder 341 is adapted to drive the driving block 342 to move, under the guidance and matching of the second sliding block 344 and the second guide rail 343, the driving block 342 can be moved along the extending direction of the key feeding slide 31, and the driving block 342 can drive the key feeding block 33 to move along the extending direction of the key feeding slide 31. The second driving cylinder 341 can be a rodless cylinder.

[0056] In some embodiments of the present application, referring to Figure 4 As shown, the upper surface of the key feeding slide 31 has a limiting key groove 313 which is communicated with the first key feeding through hole 311, the extending direction of the limiting key groove 313, the extending direction of the slide guide groove 212 and the moving direction of the key feeding block 33 driven by the key block driving member 34 are the same, so that the moving directions of the key feeding slide 31, the positioning key and the key feeding block 33 are consistent, which is beneficial to improve the position accuracy of the stator key.

[0057] It can be understood that the limiting key groove 313 can play a role of guiding the stator key to move along the extending direction of the limiting key groove 313, and the extending direction of the limiting key groove 313 and the moving direction of the key feeding block 33 driven by the key block driving member 34 are the same, which is beneficial to reduce the risk of scratching the limiting key groove 313 by the stator key when moving.

[0058] In some embodiments of the present application, referring to Figure 3 and Figure 9 As shown, the key feeding block 33 has a second detection hole 332 which is communicated with the second key feeding through hole 331, and the second key sensor 36 is installed in the second detection hole 332, the second key sensor 36 can detect whether there is a stator key in the second key feeding through hole 331 through the second detection hole 332, wherein the second key sensor 36 can be a fiber sensor, and the second key sensor 36 can emit detection light to the second key feeding through hole 331 through the second detection hole 332 to detect whether there is a stator key in the second key feeding through hole 331.

[0059] It can be understood that when the key feeding block 33 is in the fourth preset position, if the second key sensor 36 detects that there is a stator key in the second key feeding hole 331, the key block driving member 34 can drive the key feeding block 33 to move to the third preset position, so that the axis of the second key feeding hole 331 is collinear with the axis of the first key feeding hole 311, and the stator key in the second key feeding hole 331 falls into the first key feeding hole 311 under the action of its own gravity. When the key feeding block 33 is in the third preset position, if the second key sensor 36 detects that there is no stator key in the second key feeding hole 331, the key block driving member 34 can drive the key feeding block 33 to move to the fourth preset position, so that the second key feeding hole 331 receives the stator key transported by the loading mechanism.

[0060] In some embodiments of the present invention, reference Figure 2 As shown, the clamping drive member 23 includes: a first cylinder 231 and a second cylinder 232. The first cylinder 231 is installed on the positioning frame 1 and is used to drive the first clamping block 21 to move. The second cylinder 232 is installed on the positioning frame 1 and is used to drive the second clamping block 22 to move. By driving the first clamping block 21 to move by the first cylinder 231 and the second cylinder 232 to move the second clamping block 22, the first clamping block 21 and the second clamping block 22 can be moved closer to or farther from each other. The first cylinder 231 and the second cylinder 232 can both be piston cylinders.

[0061] Reference Figure 2 As shown, the first cylinder 231 may include a first cylinder body 2311 and a first push rod 2312 movably connected to the first cylinder body 2311, the second cylinder 232 may include a second cylinder body 2321 and a second push rod 2322 movably connected to the second cylinder body 2321, the first cylinder body 2311 and the second cylinder body 2321 are both installed on the positioning skeleton 1, the first push rod 2312 is connected to the first clamping block 21, and the second push rod 2322 is connected to the second clamping block 22. Inflating the first cylinder body 2311 can make the first push rod 2312 move relative to the first cylinder body 2311, and inflating the second cylinder body 2321 can make the second push rod 2322 move relative to the second cylinder body 2321, so that the movement of the first push rod 2312 can drive the first clamping block 21 to move, and the movement of the second push rod 2322 can drive the second clamping block 22 to move, so that the first clamping block 21 and the second clamping block 22 can move closer to and away from each other.

[0062] In some embodiments of the present invention, reference Figure 2As shown, the driving force of the second cylinder 232 on the second clamp block 22 is greater than the driving force of the first cylinder 231 on the first clamp block 21, when the first clamp block 21 and the second clamp block 22 jointly clamp the stator, the force (direction to the right) exerted by the second clamp block 22 on the stator is greater than the force (direction to the left) exerted by the first clamp block 21 on the stator, and the greater force exerted by the second clamp block 22 can make the stator move to the right, so that the side of the stator adjacent to the first clamp block 21 abuts on the inner wall of the positioning hole 11 (i.e. Figure 2 the inner wall on the right side of the stator hole 11), thereby positioning the stator before press-fitting by using the fixed positioning hole 11, at this time, the guide key hole is opposite to the press key mechanism 4, which is conducive to the press key mechanism 4 to press the stator key into the guide key hole smoothly.

[0063] It can be understood that the position of the press key mechanism 4 is fixed relative to the positioning framework 1, that is, the press key mechanism 4 presses the stator key at a fixed position, and the difference in the force exerted by the second clamp block 22 and the first clamp block 21 on the stator is used to make the side of the stator adjacent to the first clamp block 21 abut on the inner wall of the positioning hole 11 when the first clamp block 22 and the second clamp block 21 jointly clamp the stator, thereby achieving the positioning of the stator, so that the position of the stator relative to the positioning framework 1 is fixed, at this time, the first clamp block 21 abuts on the stator, so that the position of the first clamp block 21 relative to the positioning framework 1 is fixed, thereby making the position of the first clamp block 21 relative to the press key mechanism 4 fixed, and achieving the positioning of the guide key hole formed by the stator and the first clamp block 21 relative to the press key mechanism 4.

[0064] At the same time, the limiting block 24 provided on the first clamp block 21 can determine the position of the key feeding slide 31 at the first preset position relative to the first clamp block 21, so as to determine the position of the key feeding slide 31 relative to the press key mechanism 4, thereby achieving that when the key feeding slide 31 moves to the first preset position, the stator key in the first key feeding hole 311 of the key feeding slide 31 is aligned with the press key mechanism 4 and the guide key hole in the up-down direction, so as to avoid scratching the guide key hole by the stator key when the press key mechanism 4 presses the stator key into the guide key hole.

[0065] Referring to Figure 2 As shown, the second cylinder 232 is connected with a pressurizing valve 25, so that the pressure in the second cylinder 232 is greater than the pressure in the first cylinder 231, thereby making the driving force of the second cylinder 232 on the second clamp block 22 greater than the driving force of the first cylinder 231 on the first clamp block 21.

[0066] In some embodiments of the present invention, the groove depth of the key guide groove 211 is less than the groove depth of the stator key groove, and / or the groove width of the key guide groove 211 is greater than the groove width of the stator key groove, that is, the groove depth of the key guide groove 211 is less than the groove depth of the stator key groove, or the groove width of the key guide groove 211 is greater than the groove width of the stator key groove, or the groove depth of the key guide groove 211 is less than the groove depth of the stator key groove, and the groove width of the key guide groove 211 is greater than the groove width of the stator key groove, so as to facilitate the separation of the stator key from the key guide groove 211, so as to facilitate the smooth removal of the stator from the stator key pressing device 10 after the stator key is pressed.

[0067] In some embodiments of the present invention, reference Figure 10 As shown, the key pressing mechanism 4 may include a key pressing block 41, a key pressing pin 42 and a mounting block 43. The mounting block 43 is fixedly connected to the positioning skeleton 1. At least a portion of the key pressing block 41 is located in the mounting block 43 and is movably connected to the mounting block 43. The lower end of the key pressing block 41 is fixedly connected to the key pressing pin 42. The upper end of the key pressing block 41 can be connected to a driving mechanism. The driving mechanism is suitable for driving the key pressing block 41 to move up and down. When the driving mechanism drives the key pressing block 41 to move downward, the key pressing block 41 can drive the key pressing pin 42 to move downward. The key pressing pin 42 can press the stator key on the key feeding mechanism 3 into the guide key hole to press the stator key into the stator key slot of the stator. The driving mechanism can be a driving motor, a cylinder, etc.

[0068] In some embodiments of the present invention, the steps of the stator key press-fitting method are as follows:

[0069] Step S1: The clamping driving member drives the first clamping block and the second clamping block to approach each other to clamp the stator in the positioning hole to fix the stator.

[0070] Step S2: the slide bar driving member drives the key feeding slide bar to move to the second preset position, the key block driving member drives the key feeding block to move to the fourth preset position, and the loading mechanism feeds the stator key into the second key feeding through hole of the key feeding block.

[0071] Step S3: The second key sensor detects that there is a stator key in the second key feeding hole, and the key block driving member drives the key feeding block to move to a third preset position so that the axis of the second key feeding hole is collinear with the axis of the first key feeding hole, and the stator key falls into the first key feeding hole under the action of gravity.

[0072] Step S4: The first key sensor detects that there is a stator key in the first key feeding hole, and the slide driving member drives the key feeding slide to move to a first preset position so that the axis of the first key feeding hole is collinear with the axis of the guide key hole.

[0073] Step S5: The key pressing pin presses the stator key into the guide key hole to press the stator key into the stator key slot of the stator.

[0074] According to the stator key press-fitting device 10 of the embodiment of the present invention, multiple sets of cylinders and slide rails are used to deliver the stator key to the press-fitting area, and the press-fitting operation is performed through the key pressing mechanism 4, which can realize the automation of the stator key press-fitting, which is beneficial to improving the production rhythm of the motor. The stator key press-fitting device 10 can ensure the position accuracy of the stator key, which is beneficial to improving the press-fitting efficiency. At the same time, it can prevent the stator key from damaging or scratching the stator core product during the press-fitting process, which is beneficial to improving the qualified rate of motor production and reducing the cost of motor production.

[0075] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0076] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A stator key press-fitting device, characterized in that: include: A positioning skeleton (1), the positioning skeleton (1) having a positioning hole (11) and a first guide groove (12) and a second guide groove (13) communicated with the positioning hole (11), the positioning hole (11) being suitable for accommodating a stator, the first guide groove (12) and the second guide groove (13) being arranged opposite to each other in a radial direction of the positioning hole (11); A clamping mechanism (2), the clamping mechanism (2) comprising: a first clamping block (21), a second clamping block (22) and a clamping drive member (23), the first clamping block (21) being movably disposed in the first guide groove (12), the second clamping block (22) being movably disposed in the second guide groove (13), the clamping drive member (23) being used to drive the first clamping block (21) and the second clamping block (22) to move closer to and away from each other, the first clamping block (21) having a key guide groove (211), and when the first clamping block (21) abuts against the stator, the notch of the key guide groove (211) is adapted to be opposite to the notch of the stator key groove of the stator and to form a guide key hole together; A key delivery mechanism (3), the key delivery mechanism (3) is used to deliver the stator key to the upper side of the guide key hole; A key pressing mechanism (4) is used to press the stator key on the key feeding mechanism (3) into the guide key hole.

2. The stator key press-fitting device according to claim 1, characterized in that: The key-feeding mechanism (3) comprises: A key feeding slide bar (31), wherein the first clamping block (21) has a slide bar guide groove (212) connected to the key pressing guide groove (211), the key feeding slide bar (31) is movably arranged in the slide bar guide groove (212), and the key feeding slide bar (31) has a first key feeding through hole (311) suitable for accommodating the stator key; A slide driving member (32), the slide driving member (32) is installed on the positioning frame (1) and connected to the key-feeding slide (31), the slide driving member (32) is used to drive the key-feeding slide (31) to move along the slide guide groove (212) to a first preset position and a second preset position, when the key-feeding slide (31) moves to the first preset position, the axis of the first key-feeding through hole (311) is collinear with the axis of the guide key hole, when the key-feeding slide (31) moves to the second preset position, the first key-feeding through hole (311) is located on the outside of the positioning frame (1).

3. The stator key press-fitting device according to claim 2, characterized in that: The key-feeding slide bar (31) has a first detection hole (312) communicating with the first key-feeding through hole (311); A first key sensor (35) is provided on the first clamping block (21); when the key-feeding slide bar (31) moves to the second preset position, the detection end of the first key sensor (35) faces the first detection hole (312).

4. The stator key press-fitting device according to claim 2, characterized in that: The clamping mechanism (2) further comprises a limit block (24), wherein the limit block (24) is mounted on the first clamping block (21), and when the key-feeding slide bar (31) moves to the first preset position, the key-feeding slide bar (31) abuts against the limit block (24).

5. The stator key press-fitting device according to claim 2, characterized in that: The key-feeding mechanism (3) further comprises: A key feeding block (33), the key feeding block (33) is arranged above the key feeding slide bar (31) and located outside the positioning skeleton (1), and the key feeding block (33) has a second key feeding through hole (331) suitable for accommodating the stator key; A key block driving member (34), the key block driving member (34) is installed on the positioning skeleton (1) and connected to the key feeding block (33), the key block driving member (34) is used to drive the key feeding block (33) to move to a third preset position and a fourth preset position, when the key feeding block (33) moves to the third preset position, the axis of the second key feeding through hole (331) is collinear with the axis of the first key feeding through hole (311) at the second preset position, when the key feeding block (33) moves to the fourth preset position, the second key feeding through hole (331) is located directly above the key feeding slide (31) at the second preset position and is staggered with the first key feeding through hole (311).

6. The stator key press-fitting device according to claim 5, characterized in that: The upper surface of the key-feeding slide bar (31) has a limiting key groove (313) connected to the first key-feeding through hole (311), and the extension direction of the limiting key groove (313), the extension direction of the slide bar guide groove (212) and the moving direction of the key-feeding block (33) driven by the key block driving member (34) are the same.

7. The stator key press-fitting device according to claim 5, characterized in that: The key-feeding block (33) has a second detection hole (332) communicating with the second key-feeding through hole (331), and a second key sensor (36) is installed in the second detection hole (332).

8. The stator key press-fitting device according to claim 1, characterized in that: The clamping drive member (23) comprises: a first cylinder (231), the first cylinder (231) being installed on the positioning frame (1), and the first cylinder (231) being used to drive the first clamping block (21) to move; A second cylinder (232), the second cylinder (232) is installed on the positioning frame (1), and the second cylinder (232) is used to drive the second clamping block (22) to move.

9. The stator key press-fitting device according to claim 8, characterized in that: The driving force of the second cylinder (232) on the second clamping block (22) is greater than the driving force of the first cylinder (231) on the first clamping block (21).

10. The stator key press-fitting device according to any one of claims 1 to 9, characterized in that: The groove depth of the key guide groove (211) is smaller than the groove depth of the stator key groove, and / or the groove width of the key guide groove (211) is larger than the groove width of the stator key groove.

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