Welding auxiliary device for stator winding

Abstract

The invention belongs to the technical field of motor manufacturing, and discloses a welding auxiliary device for a stator winding, which comprises a base, a lifting mechanism and a clamping mechanism, the base is used for supporting a stator, the clamping mechanism comprises a support, an annular clamping plate and a clamping driving piece, the support is arranged on the lifting mechanism, the lifting mechanism is used for lifting the support, and the annular clamping plate is arranged on the clamping driving piece. The annular clamping plate is fixed to the support, a plurality of first long holes are formed in the annular clamping plate at intervals in the circumferential direction of the annular clamping plate, three clamping blocks are arranged in the first long holes in a sliding mode, sliding blocks corresponding to the first long holes one to one are arranged on the support, the three clamping blocks and the sliding blocks are sequentially arranged in the radial direction of the annular clamping plate, and the clamping driving piece is used for driving the sliding blocks to move towards the sides where the clamping blocks are located. Therefore, the winding welding end of the stator is clamped between the sliding block and the clamping block closest to the sliding block, between every two adjacent clamping blocks, and between the clamping block farthest from the sliding block and the hole wall of the first long hole. The device can reliably clamp the winding welding end of the stator, and ensures reliable and stable welding of the winding end part.

Description

Technical Field

[0001] The present invention relates to the technical field of motor manufacturing, and in particular to a welding auxiliary device for stator windings. Background Art

[0002] X-pin flat wire winding technology has garnered significant attention in recent years. Its core lies in the meticulous manufacturing and insulation of flat wire motor stators, ensuring stator quality and performance. The name "X-pin" derives from the "X"-shaped solder joints. It is an improvement and innovation based on the I-pin and Hair-pin processes. X-pin, named for its "X"-shaped solder joints, reduces the height of the winding ends. While X-pin technologies differ in winding forming, solder joint tip geometry, and welding techniques, they all share the goal of reducing winding end height. Consequently, X-pin winding technology has become a general term for this category of technologies.

[0003] At present, due to the special structure of the X-pin stator winding end and the shorter end size, the space for clamping the X-pin winding end is limited, making it extremely difficult to clamp the winding welding end. Ordinary motor welding tooling structures cannot achieve reliable clamping of the X-pin winding end, resulting in low productivity of the welding process and affecting the final welding effect. Summary of the Invention

[0004] The object of the present invention is to provide a welding auxiliary device for stator windings, which can reliably clamp the welding ends of the stator windings, ensure reliable and stable welding of the winding ends, and improve welding production efficiency.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A welding auxiliary device for stator windings, comprising:

[0007] a base, the base being used to support the stator;

[0008] a lifting mechanism connected to the base;

[0009] The clamping mechanism includes a support, an annular clamping plate and a clamping driving member, the support is arranged on the lifting mechanism, the lifting mechanism is used to lift the support, the annular clamping plate is fixedly supported on the support, the annular clamping plate is provided with a plurality of first long holes spaced apart along its own circumference, the length direction of the first long hole is parallel to the radial direction of the annular clamping plate, three clamping blocks are slidably arranged in the first long hole, the support is provided with a slider corresponding to the first long hole one by one, the three clamping blocks and the slider are arranged in sequence along the radial direction of the annular clamping plate, and the clamping driving member is used to drive the slider to move toward the side where the clamping block is located, so that the winding welding end of the stator is clamped between the slider and the clamping block closest to the slider, between two adjacent clamping blocks, and between the clamping block farthest from the slider and the hole wall of the first long hole.

[0010] Preferably, the clamping drive member includes a first motor, a driving gear and a rotating ring plate, the housing of the first motor is fixed on the support, the output shaft of the first motor is connected to the driving gear, the rotating ring plate is provided with a driven tooth portion meshing with the driving gear, the rotating ring plate is rotatably sleeved on the annular clamping plate, the rotating ring plate is provided with a plurality of arc-shaped long holes spaced apart along its own circumference, the plurality of arc-shaped long holes are arranged one-to-one corresponding to the plurality of sliders, the slider is provided with a driving head, the driving head extends into the corresponding arc-shaped long hole, and is slidably connected to the arc-shaped long hole.

[0011] Preferably, the clamping mechanism further includes a clamping cover plate, which is supported on the base and covers the rotating ring plate.

[0012] Preferably, the support is provided with a sliding groove along the radial direction of the annular clamping plate, and the sliding block is slidably connected in the sliding groove.

[0013] Preferably, an elastic reset member is provided between the first clamping block and the first long hole, and between the clamping block and the first long hole.

[0014] Preferably, a cooling mechanism is further included, which is provided on the clamping mechanism and is used to absorb the heat generated by the welding end of the winding during welding.

[0015] Preferably, the cooling mechanism includes a cooling base plate and a cooling cover plate, the cooling base plate is fixed to the annular clamping plate, the cooling base plate is provided with a cooling channel, the cooling cover plate is opened on the cooling base plate, and the cooling cover plate is provided with a liquid inlet pipe and a liquid outlet pipe connected to the cooling channel.

[0016] Preferably, the cooling base plate is provided with a plurality of second long holes spaced apart along its circumference, and the cooling cover plate is provided with a plurality of third long holes spaced apart along its circumference, and the plurality of first long holes, the plurality of second long holes and the plurality of third long holes are connected and arranged in a one-to-one correspondence.

[0017] Preferably, the lifting mechanism includes a vertical plate, a slide rail, a sliding part and a lifting drive component, the vertical plate is fixedly connected to the base, the slide rail is extended in the vertical direction and is arranged on the vertical plate, the sliding part is slidably connected to the slide rail, the support is fixed on the sliding part, and the lifting drive component is used to drive the sliding part to slide on the slide rail.

[0018] Preferably, the lifting drive member includes a second motor and a threaded rod, the housing of the second motor is fixed to the vertical plate, the output shaft of the second motor is connected to the threaded rod, and the threaded rod extends in a vertical direction and is threadedly connected to the sliding part.

[0019] Beneficial effects:

[0020] The present invention provides a stator winding welding auxiliary device. When in use, the stator to be welded is fixedly supported on a base. The stator is provided with multiple groups of winding welding ends spaced apart along its circumference, with each group having four winding welding ends spaced apart in the radial direction of the stator. A clamping mechanism comprises a support, an annular clamping plate, and a clamping drive. The annular clamping plate defines multiple first elongated holes spaced apart along its circumference. The multiple first elongated holes correspond one-to-one with the multiple groups of winding welding ends on the stator. The support is provided with multiple sliders corresponding one-to-one with the first elongated holes, and three clamping blocks are slidably disposed within the first elongated holes. Corresponding to each first elongated hole, the three clamping blocks and the sliders are sequentially arranged in the radial direction of the annular clamping plate. Specifically, clamping spaces for clamping the stator winding welding ends are formed between the slider and the clamping block closest to the slider, between two adjacent clamping blocks, and between the clamping block farthest from the slider and the wall of the first elongated hole, respectively corresponding to the four winding welding ends within a group. After the stator is fixedly supported on the base, the lifting mechanism drives the support to descend, driving the annular clamp to descend, so that the annular clamp is pressed against the upper end face of the stator. At the same time, multiple groups of winding welding ends correspond to multiple first long holes, and the four winding welding ends of each group are respectively located between the slider and the clamping block closest to the slider, between two adjacent clamping blocks of two groups, and between the clamping block farthest from the slider and the hole wall of the first long hole. Then, the clamping drive drives the slider to move toward the side where the clamping block is located, so that the corresponding winding welding ends are clamped between the slider and the clamping block closest to the slider, between two adjacent clamping blocks of two groups, and between the clamping block farthest from the slider and the hole wall of the first long hole, thereby reliably clamping and fixing all the winding welding ends on the stator. This device can reliably clamp all the winding welding ends on the stator, ensure reliable and stable welding of the winding ends, and improve welding production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 1 is a schematic structural diagram of a welding auxiliary device for stator windings provided by the present invention;

[0022] Figure 2 1 is a cross-sectional schematic diagram of a welding auxiliary device for stator windings provided by the present invention;

[0023] Figure 3 The present invention Figure 2 A partial enlarged schematic diagram of point A in the middle;

[0024] Figure 4 It is a partial structural diagram of the clamping mechanism provided by the present invention;

[0025] Figure 5 This is a schematic diagram of the partial structure of the clamping mechanism provided by the present invention without the clamping cover plate;

[0026] Figure 6 This is a structural schematic diagram of the annular splint provided by the present invention from one perspective;

[0027] Figure 7 This is a structural schematic diagram of the annular splint provided by the present invention from another perspective;

[0028] Figure 8 It is a structural schematic diagram of the clamping block provided by the present invention;

[0029] Figure 9 It is a structural schematic diagram of the cooling mechanism provided by the present invention;

[0030] Figure 10 It is a structural schematic diagram of the cooling base plate provided by the present invention;

[0031] Figure 11 It is a structural schematic diagram of the lifting mechanism provided by the present invention.

[0032] In the picture:

[0033] 1. Base; 11. Keyway; 12. Positioning key; 13. Support plate;

[0034] 2. Lifting mechanism; 21. Vertical plate; 22. Slide rail; 23. Sliding portion; 24. Second motor; 25. Threaded rod; 26. Reinforcement plate; 27. Connecting seat;

[0035] 3. Clamping mechanism; 31. Support; 311. Slider; 312. Driving head; 313. Slide; 314. Connecting ear; 32. Annular clamping plate; 321. First elongated hole; 3211. Guide elongated hole; 3212. Limiting groove; 322. Elastic reset member; 323. Abutting end surface; 324. Shaping protrusion; 33. Clamping block; 331. Main body; 332. Guide portion; 333. Clamping portion; 3331. Guide inclined surface; 33A. First clamping block; 33B. Second clamping block; 33C. Third clamping block; 34. First motor; 35. Driving gear; 36. Rotating ring plate; 361. Driven gear portion; 362. Arc-shaped elongated hole; 37. Clamping cover plate;

[0036] 4. Cooling mechanism; 41. Cooling base plate; 411. Cooling channel; 412. Second long hole; 42. Cooling cover plate; 421. Liquid inlet pipe; 422. Liquid outlet pipe; 423. Third long hole;

[0037] 5. Stator; 51. Winding welding end. DETAILED DESCRIPTION

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0039] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections 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 in specific circumstances.

[0040] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0041] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0042] This embodiment provides a welding auxiliary device for stator windings. Figures 1 to 11 As shown, the welding auxiliary device for stator windings includes a base 1, a lifting mechanism 2, and a clamping mechanism 3. The base 1 is used to support the stator 5, the lifting mechanism 2 is connected to the base 1, and the clamping mechanism 3 includes a support 31, an annular clamping plate 32, and a clamping drive. The support 31 is provided on the lifting mechanism 2, and the lifting mechanism 2 is used to lift the support 31. The annular clamping plate 32 is fixedly supported on the support 31. The annular clamping plate 32 is provided with a plurality of first long holes 321 spaced apart along its circumference. The length direction of the first long holes 321 is parallel to the radial direction of the annular clamping plate 32. Three first long holes 321 are slidably provided in the first long holes 321. The clamping block 33 and the support 31 are provided with sliders 311 corresponding to the first long holes 321 one by one. The three clamping blocks 33 and the sliders 311 are arranged in sequence along the radial direction of the annular clamping plate 32. The clamping drive member is used to drive the slider 311 to move toward the side where the clamping block 33 is located, so that the winding welding end 51 of the stator 5 is clamped between the slider 311 and the clamping block 33 closest to the slider 311, between two adjacent clamping blocks 33, and between the clamping block 33 farthest from the slider 311 and the hole wall of the first long hole 321.

[0043] In this embodiment, when in use, the stator 5 with the winding to be welded is fixedly supported on the base 1. The stator 5 is provided with multiple groups of winding welding ends 51 at intervals along its own circumference, and each group of winding welding ends 51 is provided with four at intervals along the radial direction of the stator 5. The clamping mechanism 3 includes a support 31, an annular clamping plate 32 and a clamping drive. The annular clamping plate 32 is provided with multiple first long holes 321 at intervals along its own circumference. The multiple first long holes 321 are arranged in a one-to-one correspondence with the multiple groups of winding welding ends 51 on the stator 5. The support 31 is provided with multiple sliders 311 corresponding to the first long holes 321, and three clamping blocks 33 are slidably arranged in the first long holes 321. Corresponding to each first long hole 321, three clamping blocks 33 and sliders 311 are arranged in sequence along the radial direction of the annular clamping plate 32. Specifically, clamping spaces for clamping the stator 5 winding welding ends 51 are formed between the slider 311 and the clamping block 33 closest to the slider 311, between two adjacent clamping blocks 33, and between the clamping block 33 farthest from the slider 311 and the wall of the first slot 321, respectively corresponding to the four winding welding ends 51 in a group. After the stator 5 is fixedly supported on the base 1, the lifting mechanism 2 drives the support 31 to descend, driving the annular clamping plate 32 to descend, so that the annular clamping plate 32 abuts against the upper end surface of the stator 5. At the same time, multiple groups of winding welding ends 51 correspond to multiple first slots 321, and the four winding welding ends 51 in each group are respectively located between the slider 311 and the clamping block 33 closest to the slider 311, between two adjacent groups of clamping blocks 33, and between the clamping block 33 farthest from the slider 311 and the wall of the first slot 321. The clamping drive then moves the slider 311 toward the side near the clamping block 33, clamping the corresponding winding welding ends 51 between the slider 311 and the clamping block 33 closest to the slider 311, between two adjacent clamping blocks 33, and between the clamping block 33 farthest from the slider 311 and the wall of the first slot 321. This securely clamps and secures all winding welding ends 51 on the stator 5. This device is particularly suitable for X-pin flat wire windings, ensuring reliable and stable welding of the winding ends and improving welding production efficiency.

[0044] Specifically, the three clamping blocks 33 slidably disposed within the first elongated hole 321 are a first clamping block 33A, a second clamping block 33B, and a third clamping block 33C. The slider 311, the first clamping block 33A, the second clamping block 33B, and the third clamping block 33C are sequentially disposed along the radial direction of the annular clamping plate 32. Clamping spaces for clamping the stator 5 winding welding ends 51 are formed between the slider 311 and the first clamping block 33A, between the first clamping block 33A and the second clamping block 33B, between the second clamping block 33B and the third clamping block 33C, and between the third clamping block 33C and the wall of the first elongated hole 321. These spaces correspond to the four winding welding ends 51 within a group. When the stator 5 is fixedly supported on the base 1, the lifting mechanism 2 drives the support 31 to descend and drives the annular clamping plate 32 to descend, so that the four winding welding ends 51 of each group are respectively located between the slider 311 and the first clamping block 33A, between the first clamping block 33A and the second clamping block 33B, between the second clamping block 33B and the third clamping block 33C, and between the third clamping block 33C and the hole wall of the first long hole 321. Then, the clamping drive member drives the slider 311 to move toward the side where the first clamp 33A is located, and the slider 311 moves toward the side of the first clamp 33A, and the slider 311 and the first clamp 33A jointly clamp the corresponding winding welding end 51; the slider 311 continues to move, so that the first clamp 33A and the second clamp 33B jointly clamp the corresponding winding welding end 51; the slider 311 continues to move, so that the second clamp 33B and the third clamp 33C jointly clamp the corresponding winding welding end 51; the slider 311 continues to move, so that the third clamp 33C and the hole wall of the first long hole 321 clamp the corresponding winding welding end 51, thereby reliably clamping and fixing all the winding welding ends 51 on the stator 5, and also ensuring that the end faces to be welded are on the same plane.

[0045] In this embodiment, one of the base 1 and the stator 5 is provided with a key slot 11, and the other is provided with a corresponding positioning key 12. The positioning key 12 is configured to be fixedly inserted into the key slot 11, thereby ensuring that the stator 5 is securely fixed to the base 1 and preventing the stator 5 from deflecting relative to the base 1.

[0046] Optionally, the number of the key slot 11 and the positioning key 12 can be set to one or more, and no further limitation is given here.

[0047] Specifically, the annular clamping plate 32 is provided with a guide slot 3211 corresponding to the first slot 321. The guide slot 3211 extends along the length of the corresponding first slot 321. The annular clamping plate 32 is provided with a limiting slot 3212. The guide slot 3211 is connected to the corresponding first slot 321 through the limiting slot 3212. The clamping block 33 includes a main body 331, a guide portion 332, and a clamping portion 333. Both the guide portion 332 and the clamping portion 333 are provided on the main body 331. The main body 331 is slidably connected to the first slot 321. The guide portion 332 penetrates the first slot 321 and the limiting slot 3212, enters the guide slot 3211, and is slidably connected to the guide slot 3211. The clamping portion 333 extends downward from the first slot 321 and is used to clamp the corresponding winding welding end 51. The sliding fit between the guide slot 3211 and the guide portion 332 further guides the movement of the clamping block 33, ensuring that the clamping block 33 slides strictly along the length of the first slot 321. Furthermore, the limiting groove 3212 also serves to limit the sliding movement of the clamping block 33. When the clamping block 33 slides to the limit position, the guide portion 332 abuts against the wall of the limiting groove 3212, thereby limiting the sliding movement of the clamping block 33.

[0048] In this embodiment, the end of the annular clamping plate 32 facing the base 1 forms an abutting end surface 323, which is used to abut against the upper end surface of the stator 5 during the descent of the support 31. A plurality of shaping protrusions 324 are provided on the abutting end surface 323 to shape the winding welding end 51.

[0049] Specifically, guide slopes 3331 are provided on both sides of the opposite ends of the clamping portion 333. The setting of the guide slopes 3331 facilitates the clamping portion 333 to be quickly embedded in the end layer of the winding welding end 51, thereby achieving rapid clamping of the winding welding end 51.

[0050] In this embodiment, the clamping drive member includes a first motor 34, a driving gear 35 and a rotating ring plate 36. The housing of the first motor 34 is fixed to the support 31, and the output shaft of the first motor 34 is connected to the driving gear 35. The rotating ring plate 36 is provided with a driven tooth portion 361 that meshes with the driving gear 35. The rotating ring plate 36 is rotatably sleeved on the annular clamping plate 32. The rotating ring plate 36 is provided with a plurality of arc-shaped long holes 362 spaced apart along its own circumference. The plurality of arc-shaped long holes 362 are arranged in a one-to-one correspondence with the plurality of sliders 311. The slider 311 is provided with a driving head 312, which extends into the corresponding arc-shaped long hole 362 and is slidably connected to the arc-shaped long hole 362.

[0051] Specifically, the driven tooth portion 361 can be configured as a complete gear or as a non-full gear structure with a certain angle. The output shaft of the first motor 34 rotates, driving the driving gear 35 to rotate. The driving gear 35 rotates, driving the driven gear to rotate, thereby driving the rotating ring plate 36 to rotate. The rotation of the rotating ring plate 36 causes the relative position of the arc-shaped long hole 362 and the slider 311 to change, thereby driving the slider 311 to move toward the side close to the first clamping block 33A. As a result, the corresponding winding welding ends 51 are clamped between the slider 311 and the first clamping block 33A, between the first clamping block 33A and the second clamping block 33B, between the second clamping block 33B and the third clamping block 33C, and between the third clamping block 33C and the wall of the first long hole 321, thereby reliably clamping and fixing all the winding welding ends 51 on the stator 5.

[0052] In some other optional embodiments, the clamping drive further includes a plurality of telescopic cylinders (not shown). The plurality of telescopic cylinders are provided in a one-to-one correspondence with the plurality of sliders 311, the cylinder bodies of the telescopic cylinders are fixed to the support 31, and the cylinder rods of the telescopic cylinders are connected to the corresponding sliders 311. The cylinder rods of the telescopic cylinders are extended and retracted relative to the cylinder bodies, thereby driving the sliders 311 to move relative to the support 31 toward the side where the first slider 311 is located, so that the corresponding winding welding ends 51 are clamped between the sliders 311 and the first clamping block 33A, between the first clamping block 33A and the second clamping block 33B, between the second clamping block 33B and the third clamping block 33C, and between the third clamping block 33C and the wall of the first long hole 321, thereby reliably clamping and fixing all the winding welding ends 51 on the stator 5.

[0053] In this embodiment, the clamping mechanism 3 further includes a clamping cover 37, which is supported on the base 1 and covers the rotating ring plate 36. The provision of the clamping cover 37, which covers the rotating ring plate 36, ensures aesthetics while also covering areas such as the arc-shaped elongated hole 362.

[0054] In this embodiment, the support 31 defines a sliding groove 313 along the radial direction of the annular clamping plate 32, and the slider 311 is slidably connected to the sliding groove 313. Specifically, the sliding grooves 313 are provided in a one-to-one correspondence with the first elongated holes 321, and each sliding groove 313 extends along the length of the corresponding first elongated hole 321. The slider 311 slides in the sliding groove 313, which can provide guidance for the sliding of the slider 311.

[0055] In this embodiment, elastic return members 322 are provided between the clamping blocks 33 and the first elongated holes 321. The provision of the elastic return members 322 ensures that the clamping blocks 33 always have a tendency to slide back to their original positions. When the clamping action is released, all of the clamping blocks 33 can be reset. Specifically, elastic return members 322 are provided between the first clamping block 33A and the first elongated hole 321, between the second clamping block 33B and the first elongated hole 321, and between the third clamping block 33C and the first elongated hole 321. The elastic return members 322 are configured as springs.

[0056] In this embodiment, the stator winding welding auxiliary device further includes a cooling mechanism 4, which is mounted on the clamping mechanism 3 and is used to absorb heat generated by the winding welding end 51 during welding. The provision of the cooling mechanism 4 provides reliable and effective cooling of the stator winding welding end during welding, absorbing the heat generated by the winding welding end 51 during welding. Specifically, for X-pin windings, the shorter paint removal length makes it easier to ablate the paint during welding. Therefore, the provision of the cooling mechanism 4 allows for the timely dissipation of welding heat, preventing heat accumulation and paint ablation defects.

[0057] In this embodiment, the cooling mechanism 4 includes a cooling base plate 41 and a cooling cover plate 42. The cooling base plate 41 is fixed to the annular clamping plate 32. The cooling base plate 41 is provided with a cooling channel 411. The cooling cover plate 42 is provided on the cooling base plate 41. The cooling cover plate 42 is provided with a liquid inlet pipe 421 and a liquid outlet pipe 422 connected to the cooling channel 411. Specifically, the cooling channel 411 is configured in an arc shape and is arranged around a plurality of first long holes 321. The liquid inlet pipe 421 and the liquid outlet pipe 422 are connected to the external circulating refrigerant. The external circulating refrigerant enters the cooling channel 411 through the liquid inlet pipe 421, and is discharged from the liquid outlet pipe 422 after flowing through the cooling channel 411. The refrigerant can absorb welding heat during the flow process, thereby achieving reliable cooling of the welding work.

[0058] Optionally, cooling water may be used as the refrigerant.

[0059] In this embodiment, the cooling base plate 41 has a plurality of second elongated holes 412 spaced apart along its circumference, and the cooling cover plate 42 has a plurality of third elongated holes 423 spaced apart along its circumference. The plurality of first elongated holes 321, the plurality of second elongated holes 412, and the plurality of third elongated holes 423 are arranged in a one-to-one correspondence and interconnected manner. The provision of the second elongated holes 412 and the third elongated holes 423 ensures that the first elongated holes 321 are exposed to the external environment. The laser welding galvanometer can penetrate the third elongated holes 423 and the second elongated holes 412 to weld the winding welding ends 51 located within the first elongated holes 321.

[0060] In this embodiment, the lifting mechanism 2 includes a vertical plate 21, a slide rail 22, a sliding portion 23, and a lifting drive. The vertical plate 21 is fixedly connected to the base 1. The slide rail 22 extends vertically on the vertical plate 21. The sliding portion 23 is slidably connected to the slide rail 22. The support 31 is fixed to the sliding portion 23. The lifting drive is used to drive the sliding portion 23 to slide on the slide rail 22. Specifically, the lifting drive drives the sliding portion 23 to slide relative to the slide rail 22, thereby driving the support 31 to rise and fall relative to the base 1.

[0061] Specifically, a support plate 13 is fixedly provided at the bottom of the base 1 , and the base 1 is supported on the ground by the support plate 13 . The vertical plate 21 is fixedly provided on the support plate 13 .

[0062] Specifically, the slide rails 22 and the sliding parts 23 are arranged in multiple groups at intervals, and two groups are provided in this embodiment.

[0063] Specifically, a connecting seat 27 is fixedly provided on the sliding portion 23, and a connecting ear 314 is correspondingly provided on the support 31, and the connecting ear 314 is fixedly connected to the connecting seat 27. Specifically, a first connecting hole is formed on the connecting seat 27, and a second connecting hole is formed on the connecting ear 314. The first connecting hole and the second connecting hole can be fixed together by a bolt assembly.

[0064] Specifically, a reinforcing plate 26 is provided between the vertical plate 21 and the support plate 13. The provision of the reinforcing plate 26 can further enhance the supporting strength of the vertical plate 21, ensuring that the overall strength of the lifting mechanism 2 meets the use requirements.

[0065] In this embodiment, the lifting drive includes a second motor 24 and a threaded rod 25. The housing of the second motor 24 is fixed to the vertical plate 21. The output shaft of the second motor 24 is connected to the threaded rod 25. The threaded rod 25 extends in the vertical direction and is threadedly connected to the sliding portion 23. Specifically, the output shaft of the second motor 24 rotates, driving the threaded rod 25 to rotate. The threaded rod 25 passes through a connecting seat 27 provided on the sliding portion 23 and is threadedly connected to the connecting seat 27. A lead screw thread structure is formed between the threaded rod 25 and the connecting seat 27, thereby driving the sliding portion 23 to slide relative to the slide rail 22, thereby achieving the lifting and lowering drive control of the sliding portion 23.

[0066] In some optional embodiments, the lifting drive member may also be configured as a drive cylinder (not shown). The cylinder body of the drive cylinder is fixed to the vertical plate 21, and the cylinder rod of the drive cylinder is connected to the sliding portion 23. The cylinder rod of the drive cylinder is retracted relative to the cylinder body, thereby driving the sliding portion 23 to slide relative to the slide rail 22, thereby achieving lifting and lowering control of the sliding portion 23.

[0067] During welding, the laser welding visual recognition system is activated. After confirming that each weld point is effectively identified, the laser generator is operated to complete the welding of each weld point on the winding welding end 51. After welding is completed, the visual recognition system is used to confirm the weld quality of each weld point. If any weld points fail to meet the quality standards, they are repaired until all weld points meet the quality standards, thus completing the welding process.

[0068] After the quality of all welds is determined to be qualified, the output shaft of the first motor 34 rotates in the opposite direction, driving the driving gear 35 to rotate in the opposite direction. The driving gear 35 rotates in the opposite direction, driving the driven gear to rotate in the opposite direction, thereby driving the rotating ring plate 36 to rotate in the opposite direction. The rotating ring plate 36 rotates in the opposite direction, causing the relative position of the arc-shaped long hole 362 and the slider 311 to change, thereby driving the slider 311 to move toward the side away from the first clamping block 33A. The movement of the slider 311 toward the side away from the first clamping block 33A releases the abutment force on the first clamping block 33A. Under the action of the elastic reset member 322, the first clamping block 33A, the second clamping block 33B and the third clamping block 33C are all reset, so that the clamping of the corresponding winding welding end 51 between the slider 311 and the first clamping block 33A, between the first clamping block 33A and the second clamping block 33B, between the second clamping block 33B and the third clamping block 33C, and between the third clamping block 33C and the hole wall of the first long hole 321 is released, thereby releasing the clamping fixation of all the winding welding ends 51 on the stator 5. Then the lifting mechanism 2 drives the support 31 to rise and reset, driving the annular clamping plate 32 to rise, and the annular clamping plate 32 releases the support to the upper end face of the stator 5. Then the positioning key 12 can be taken out, and the stator 5 can be removed from the base 1.

[0069] The stator winding welding auxiliary device provided in this embodiment can perform winding welding on the stator 5 of the X-pin flat wire winding, and can also perform welding on other types of stator 5 windings, and has versatility and applicability.

[0070] 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 embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A welding auxiliary device for stator windings, characterized in that: include: A base (1), the base (1) being used to support the stator (5); A lifting mechanism (2) connected to the base (1); The clamping mechanism (3) comprises a support (31), an annular clamping plate (32) and a clamping drive member, wherein the support (31) is arranged on the lifting mechanism (2), and the lifting mechanism (2) is used to lift the support (31). The annular clamping plate (32) is fixedly supported on the support (31), and the annular clamping plate (32) is provided with a plurality of first long holes (321) spaced apart along its own circumference. The length direction of the first long hole (321) is parallel to the radial direction of the annular clamping plate (32), and three clamping blocks (33) are slidably provided in the first long hole (321). The support (31) is provided with a plurality of first long holes (321) spaced apart along its own circumference. A slider (311) is provided with a one-to-one correspondence between each long hole (321), three clamping blocks (33) and the slider (311) are sequentially arranged along the radial direction of the annular clamping plate (32), and the clamping drive member is used to drive the slider (311) to move toward the side where the clamping block (33) is located, so that the winding welding end (51) of the stator (5) is clamped between the slider (311) and the clamping block (33) closest to the slider (311), between two adjacent clamping blocks (33), and between the clamping block (33) farthest from the slider (311) and the hole wall of the first long hole (321).

2. The welding auxiliary device for stator winding according to claim 1, characterized in that: The clamping drive member includes a first motor (34), a driving gear (35) and a rotating ring plate (36). The housing of the first motor (34) is fixed on the support (31). The output shaft of the first motor (34) is connected to the driving gear (35). The rotating ring plate (36) is provided with a driven tooth portion (361) meshing with the driving gear (35). The rotating ring plate (36) is rotatably sleeved on the annular clamping plate (32). The rotating ring plate (36) is provided with a plurality of arc-shaped long holes (362) spaced apart along its circumference. The plurality of arc-shaped long holes (362) are arranged in a one-to-one correspondence with the plurality of sliders (311). The slider (311) is provided with a driving head (312). The driving head (312) extends into the corresponding arc-shaped long hole (362) and is slidably connected to the arc-shaped long hole (362).

3. The welding auxiliary device for stator winding according to claim 2, characterized in that: The clamping mechanism (3) further comprises a clamping cover plate (37), wherein the clamping cover plate (37) is supported on the base (1) and covers the rotating ring plate (36).

4. The welding auxiliary device for stator winding according to claim 1, characterized in that: The support (31) is provided with a sliding groove (313) along the radial direction of the annular clamping plate (32), and the sliding block (311) is slidably connected in the sliding groove (313).

5. The welding auxiliary device for stator winding according to claim 1, characterized in that: An elastic reset member (322) is provided between the clamping block (33) and the first long hole (311).

6. The welding auxiliary device for stator winding according to claim 1, characterized in that: It also includes a cooling mechanism (4), which is arranged on the clamping mechanism (3) and is used to absorb heat generated by the winding welding end (51) during welding.

7. The welding auxiliary device for stator winding according to claim 6, characterized in that: The cooling mechanism (4) comprises a cooling base plate (41) and a cooling cover plate (42); the cooling base plate (41) is fixed on the annular clamping plate (32); the cooling base plate (41) is provided with a cooling flow channel (411); the cooling cover plate (42) is provided on the cooling base plate (41); and the cooling cover plate (42) is provided with a liquid inlet pipe (421) and a liquid outlet pipe (422) connected to the cooling flow channel (411).

8. The welding auxiliary device for stator winding according to claim 7, characterized in that: The cooling base plate (41) is provided with a plurality of second long holes (412) spaced apart along its own circumference, and the cooling cover plate (42) is provided with a plurality of third long holes (423) spaced apart along its own circumference. The plurality of first long holes (321), the plurality of second long holes (412) and the plurality of third long holes (423) are connected and arranged in a one-to-one correspondence.

9. The welding auxiliary device for stator winding according to claim 1, characterized in that: The lifting mechanism (2) comprises a vertical plate (21), a slide rail (22), a sliding portion (23) and a lifting drive member, wherein the vertical plate (21) is fixedly connected to the base (1), the slide rail (22) is vertically extended and arranged on the vertical plate (21), the sliding portion (23) is slidably connected to the slide rail (22), the support (31) is fixed on the slide portion (23), and the lifting drive member is used to drive the sliding portion (23) to slide on the slide rail (22).

10. The welding auxiliary device for stator winding according to claim 9, characterized in that: The lifting drive member comprises a second motor (24) and a threaded rod (25), the housing of the second motor (24) is fixed on the vertical plate (21), the output shaft of the second motor (24) is connected to the threaded rod (25), and the threaded rod (25) extends in a vertical direction and is threadedly connected to the sliding portion (23).

Images