Motor stator assembly welding fixture

Abstract

The application relates to the technical field of welding fixtures, in particular to a motor stator assembling and welding fixture, which comprises a base, a splicing die and a lifting platform, the upper surface center of the base is fixedly connected with the lifting platform, the upper surface of the lifting platform is provided with the splicing die, the upper surface of the base is provided with a clamping mechanism one used for welding a plurality of iron cores, the upper side of the lifting platform is provided with a clamping mechanism two used for assisting in mounting connecting pieces, the clamping mechanism one comprises a plurality of air cylinders fixedly connected to the upper surface of the base and arranged in a circular array, the clamping mechanism one can be used for aligning the split iron cores before clamping and limiting the split iron cores, the convenience of placing the split iron cores is improved, the clamping mechanism two can be used for synchronously and concentrically clamping the connecting pieces on the plurality of split iron cores, the clamping mechanism one cooperates with the clamping mechanism two to realize splicing welding of the split stator iron cores and synchronous electric welding between the connecting pieces and the windings.

Description

Technical Field

[0001] The invention relates to the technical field of welding fixtures, in particular to a motor stator assembly welding fixture. Background Art

[0002] The stator is an important part of the electric motor. It consists of three parts: the stator core, the stator winding and the frame. There are many ways to produce the stator core. One of the production methods is to piece together multiple stator cores to form a complete stator core. After the single stator core is equipped with an insulating sleeve, the wire is wound on the insulating sleeve. After the winding is completed, the multiple stator cores are welded together using welding equipment.

[0003] When welding multiple stator cores, a splicing mold is needed to assemble the multiple stator cores into a complete circular stator core on the splicing mold. The splicing mold is then placed on the welding equipment to perform splicing welding on the multiple stator cores. After the splicing welding is completed, connecting pieces need to be installed on the stator core and the windings on the divided cores are welded to the connecting pieces by spot welding to finally form a complete stator core.

[0004] However, when welding the connecting piece to the insulating sleeve, it is necessary to first install the connecting pieces one by one on the stator core, then clamp and limit the electronic core, and finally perform electric welding connection between the connecting piece and the winding, resulting in discontinuous welding of the connecting piece, and the connecting piece is not subjected to clamping force during welding, which can easily cause the position of the connecting piece to shift during the welding process.

[0005] Therefore, the present invention provides a motor stator assembly welding fixture to solve the above technical problems. Summary of the Invention

[0006] The present invention provides a motor stator assembly welding fixture, which includes a base, a splicing mold and a lifting platform. The lifting platform is fixedly connected to the center position of the upper surface of the base, and the splicing mold is installed on the upper surface of the lifting platform. It is characterized in that: the upper surface of the base is provided with a clamping mechanism 1 for welding multiple iron cores, and the upper part of the lifting platform is provided with a clamping mechanism 2 for assisting the installation of connecting plates.

[0007] The clamping mechanism includes a cylinder fixedly connected to the upper surface of the base and distributed in a circular array, and the telescopic end of the cylinder is provided with a clamping piece for limiting the divided iron core.

[0008] The second clamping mechanism includes a fixed shell arranged above the lifting platform, a pushing member is arranged on the upper surface of the fixed shell, a limiting member for stabilizing the segmented iron core is arranged on the fixed shell, a second clamping member for installing the connecting plate is arranged on the upper surface of the pushing member, and a driving member for driving the limiting member to limit the insulating sleeve is arranged on the fixed shell.

[0009] According to an embodiment of the present invention, the clamping member includes a movable platform fixedly connected to the telescopic end of the cylinder, three arc-surface clamping blocks are fixedly connected to the upper surface of the movable platform, and the middle arc-surface clamping block on each movable platform is fixedly connected to an elastic telescopic rod on a side away from the splicing mold, and the telescopic end of the elastic telescopic rod passes through the arc surface of the arc-surface clamping block and is fixedly connected to the limited arc-surface block, and an L-shaped push rod is fixedly connected to one of the movable platforms.

[0010] According to an embodiment of the present invention, the pushing member includes a multi-stage telescopic rod slidably connected to the upper surface of the fixed shell along the up and down directions, a pushing ring is fixedly connected to the fixed section of the multi-stage telescopic rod, and the telescopic section at the bottom end of the multi-stage telescopic rod is fixedly connected to a pushing plate, and two limiting columns are penetrated and slidably connected to the upper and lower surfaces of the pushing plate.

[0011] According to an embodiment of the present invention, the limiting member includes a plurality of accommodating cavities distributed in a circular array inside the fixed shell, and the positions of the outer circumferential surface of the fixed shell corresponding to the accommodating cavities are fixedly connected to the mounting shell, and the corresponding mounting shell and the interior of the accommodating cavity are fixedly connected to a group of clamping strips, and the corresponding clamping strips move toward each other, and the positions of the clamping strips inside the mounting shell are hingedly connected.

[0012] According to an embodiment of the present invention, the second clamping member includes a plurality of storage boxes in a circular array fixedly connected to the upper surface of the fixed shell, a cover is clamped on the upper surface of the storage box, a displacement limiting rod is fixedly connected to the front surface of the storage box, and a push plate is connected to the displacement limiting rod for sliding in the up and down directions.

[0013] According to an embodiment of the present invention, a wedge-shaped block is fixedly connected to the lower surface of the cover, and a wedge-shaped groove is provided on the upper surface of the storage box at a position corresponding to the wedge-shaped block on the cover.

[0014] According to an embodiment of the present invention, the horizontal section of the push plate is slidably connected to the circumferential surface of the displacement limiting rod in the up and down directions, a return spring is sleeved on the circumferential surface of the displacement limiting rod and located below the horizontal section of the push plate, and a spring rod 1 is slidably connected to the rear surface of the storage box, and the spring rod 1 runs through the interior of the storage box.

[0015] According to an embodiment of the present invention, a connecting groove is provided at the position of the horizontal section of the push plate corresponding to the cover, the vertical section of the push plate slides in cooperation with the connecting groove, a plurality of connecting plates are arranged inside the storage box, and the position of the push plate corresponds to the position of the connecting plate farthest from the center of the fixed shell inside the storage box.

[0016] According to an embodiment of the present invention, the driving member includes a plurality of T-shaped push rods in a circular array that are slidably connected to the inside of the fixed shell through a limit sleeve along the radial direction of the fixed shell, and the positions of the T-shaped push rods on the upper surface of the fixed shell all slide in the up and down directions and are connected through an inclined push block, and the positions of the inclined push blocks on the upper surface of the fixed shell are elastically slidably connected to a return spring rod.

[0017] According to an embodiment of the present invention, one end of the T-shaped push rod close to the fixed shell is rotatably connected to an auxiliary ball, and the auxiliary ball is slidably engaged with the inclined surface of the corresponding inclined surface push block.

[0018] The technical solution of the present invention is as follows: 1. The setting of the clamping mechanism 1 can align the segmented iron core before clamping and limiting it, thereby improving the convenience of placing the segmented iron core. The setting of the clamping mechanism 2 can synchronously and concentrically clamp the connecting pieces on multiple segmented iron cores; the clamping mechanism 1 cooperates with the clamping mechanism 2 to facilitate the simultaneous splicing welding of the segmented stator iron core and the electric welding of the connection between the connecting piece and the winding.

[0019] 2. By setting the limiter, the insulating sleeve on the segmented core can be clamped and limited in advance before the connecting piece is clamped, so as to ensure the stable and accurate clamping of the connecting piece and avoid damage to the insulating sleeve during the clamping process of the connecting piece.

[0020] 3. The setting of the clamping part 1 can make it more convenient to place the splicing mold on the welding equipment without the need for deliberate alignment. The clamping part 1 can realize the alignment of the splicing mold during the clamping process, thereby improving the efficiency of the subsequent welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the motor stator assembly welding fixture provided by the present invention.

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the assembly mold provided by the present invention.

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the clamping mechanism 1 provided by the present invention.

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the clamping mechanism 2 provided by the present invention.

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the pushing member provided by the present invention.

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the driving member provided by the present invention.

[0028] Figure 7 It is a partial cross-sectional schematic diagram of the limiting member provided by the present invention.

[0029] Figure 8 This is one of the three-dimensional structural schematic diagrams of the clamping member 2 provided by the present invention.

[0030] Figure 9 This is the second schematic diagram of the three-dimensional structure of the clamping member 2 provided by the present invention.

[0031] 1. Base; 2. Splicing mold; 3. Lifting platform; 4. Clamping mechanism 1; 5. Clamping mechanism 2; 41. Cylinder; 42. Clamping member 1; 51. Pushing member; 52. Fixed shell; 53. Limiting member; 54. Clamping member 2; 55. Driving member; 421. Elastic telescopic rod; 422. Limiting arc block; 423. L-shaped push rod; 424. Moving platform; 425. Arc clamping block; 511. Multi-stage telescopic rod; 512. Pushing ring; 513. Pushing plate; 514. Limiting column; 531. Clamping strip; 532. Mounting shell; 533. Accommodating chamber; 534. Driving rod; 541. Storage box; 542. Cover; 543. Push plate; 544. Displacement limiting rod; 551. Reset spring rod; 552. Inclined push block; 553. Push rod; 554. Limiting sleeve. DETAILED DESCRIPTION

[0032] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] like Figure 1 and Figure 2 As shown, a motor stator assembly welding fixture includes a base 1, a splicing mold 2 and a lifting platform 3. The lifting platform 3 is fixedly connected to the center position of the upper surface of the base 1, and the splicing mold 2 is installed on the upper surface of the lifting platform 3. The splicing mold 2 is plugged into the lifting platform 3 through a plug-in column and the splicing mold 2 can rotate on the lifting platform 3 (not shown in the figure). A plurality of teeth are evenly distributed on the bottom end of the circumferential surface of the splicing mold 2. A clamping mechanism 4 for welding multiple iron cores is provided on the upper surface of the base 1. A clamping mechanism 5 for assisting the installation of connecting plates is provided above the lifting platform 3. An external lifting device is connected to the top of the clamping mechanism 5 to drive the clamping mechanism 5 to move up and down.

[0034] like Figure 1 and Figure 3As shown, the clamping mechanism 4 includes cylinders 41 fixedly connected to the upper surface of the base 1 and distributed in a circumferential array. The telescopic end of the cylinder 41 is provided with a clamping member 42 for limiting the divided iron core.

[0035] like Figure 1 and Figure 4 As shown, the clamping mechanism 2 5 includes a fixed shell 52 arranged above the lifting platform 3, a pushing member 51 is provided on the upper surface of the fixed shell 52, a limiting member 53 for stabilizing the segmented iron core is provided on the fixed shell 52, a clamping member 2 54 for installing the connecting piece is provided on the upper surface of the pushing member 51, and a driving member 55 for driving the limiting member 53 to limit the insulating sleeve is provided on the fixed shell 52. After the splicing mold 2 is positioned on the lifting platform 3, it corresponds to the position of the fixed shell 52, so that the limiting member 53 and the clamping member 2 54 correspond to the clamping position of the connecting piece.

[0036] When in use, the staff first assembles the divided cores one by one on the splicing mold 2 (such as Figure 2 As shown), the splicing mold 2 is then placed on the lifting platform 3. The lifting platform 3 contracts and drives the splicing mold 2 to move downward, so that the iron core on the splicing mold 2 is between the multiple clamping members 42. Then, the multiple clamping members 42 are stretched synchronously by the corresponding cylinders 41 to clamp the iron core on the splicing mold 2. During the clamping process, the clamping members 42 adjust the position of the splicing mold 2 on the lifting platform 3, and then clamp the iron core on the splicing mold 2. After completing the clamping of the iron core, the external lifting device Start to drive the pushing member 51 to move downward, and cover the fixed shell 52 and the limiting member 53 on the upper surface of the splicing mold 2. As the pushing member 51 continues to move downward, the pushing member 51 pushes the driving member 55 to move, and the driving member 55 drives the limiting member 53 to clamp the insulating sleeve on the iron core to ensure the stability of the insulating sleeve. As the pushing member 51 continues to move downward, the pushing member 51 cooperates with the clamping member 2 54 to clamp the connecting piece on the insulating sleeve, and then start the iron core splicing welding and the synchronous welding of the spot welding connection between the connecting piece and the winding.

[0037] like Figure 3As shown, the clamping member 42 includes a movable platform 424 fixedly connected to the telescopic end of the cylinder 41, and three arc-surface clamping blocks 425 are fixedly connected to the upper surface of the movable platform 424. The side of the arc-surface clamping block 425 close to the splicing mold 2 is an arc surface, and the arc surfaces of multiple arc-surface clamping blocks 425 together form a circular clamping surface. There is a gap between adjacent arc-surface clamping blocks 425. The side of the middle arc-surface clamping block 425 on each movable platform 424 away from the splicing mold 2 is fixedly connected with an elastic telescopic rod 421. The telescopic end of the elastic telescopic rod 421 passes through the arc surface of the arc-surface clamping block 425 and A limiting arc surface block 422 is fixedly connected, and the shape of the limiting arc surface block 422 is adapted to the shape of the groove on the segmented iron core. A slot adapted to the limiting arc surface block 422 is provided on the arc surface of the arc surface clamping block 425 corresponding to the limiting arc surface block 422. When the limiting arc surface block 422 is located inside the slot, the arc surface of the limiting arc surface block 422 is lower than the arc surface of the arc surface clamping block 425. An L-shaped push rod 423 is fixedly connected to one of the movable platforms 424. The long and short sections of the L-shaped push rod 423 can be elastically extended and retracted. The position of the L-shaped push rod 423 corresponds to the position of the teeth on the splicing mold 2.

[0038] When in use, when the cylinder 41 extends to clamp the iron core on the splicing mold 2 through the clamping piece 42, the cylinder 41 extends to push the moving platform 424 to drive the arc clamping block 425 to approach the iron core, and drives the L-shaped push rod 423 to move synchronously. First, the limiting arc block 422 contacts the iron core. At this time, the short section of the L-shaped push rod 423 does not contact the teeth on the splicing mold. The cylinder 41 continues to extend. At this time, the limiting arc block 422 is no longer moved due to the resistance of the iron core. The resistance acts on the elastic telescopic rod 4 21 causes the elastic telescopic rod 421 to contract, and at this time the moving platform 424 continues to move, pushing the short section of the L-shaped push rod 423 to contact and engage with the teeth on the splicing mold 2, and pushing the splicing mold 2 to rotate on the lifting platform 3. In the process of the iron core rotating with the splicing mold 2, when the limiting arc surface block 422 is clamped in the groove on the iron core, the limiting arc surface block 422 limits the iron core. At this time, the splicing mold 2 stops rotating on the lifting platform 3, and the splicing mold 2 is in the welding alignment position.

[0039] The moving platform 424 continues to move to push the arc surface clamping block 425 to fit on the iron core to clamp the iron core. Multiple arc surface clamping blocks 425 are clamped on the iron core, and the splicing position of adjacent iron cores is located at the interval position between two arc surface clamping blocks 425.

[0040] It should be noted that both the long section and the short section of the L-shaped push rod 423 are retractable. The retractable setting of the short section can facilitate the engagement of the short section with the teeth on the splicing mold. At the same time, during the pushing process, due to the circular rotation of the splicing mold 2, the distance between the short section and the tooth engagement position changes, and the retractable setting facilitates adaptation to the changed distance; the long section of the L-shaped push rod 423 is retractable, and after the limiting arc block 422 limits the splicing mold 2, the moving platform 424 can continue to move to push the arc clamping block 425 to clamp the iron core.

[0041] like Figure 4 and Figure 5 As shown, the pushing member 51 includes a multi-stage telescopic rod 511 that is slidably connected to the upper surface of the fixed shell 52 along the up and down directions. The bottom section of the multi-stage telescopic rod 511 is a first-stage telescopic section, the middle section is a second-stage telescopic section, and the top is a fixed section. The elastic force of the first-stage telescopic section is less than that of the second-stage telescopic section. A pushing ring 512 is fixedly connected to the fixed section of the multi-stage telescopic rod 511, and a pushing plate 513 is fixedly connected to the telescopic section at the bottom end of the multi-stage telescopic rod 511. Two limiting columns 514 are passed through and slidably connected to the upper surface of the pushing plate 513. The top end of the limiting column 514 is slidably connected to the telescopic section at the bottom end of the multi-stage telescopic rod 511 through a connecting sleeve. The lower surface of the telescopic section at the bottom end of the multi-stage telescopic rod 511 and located below the fixed shell 52 are fixedly connected with a limiting plate that is the same as preventing it from falling off the fixed shell 52. A placement groove that is compatible with the bottom end of the multi-stage telescopic rod 511 and the limiting plate is provided at the position of the fixed shell 52 corresponding to the multi-stage telescopic rod 511

[0042] In actual use, after the stator core is clamped, the external lifting device drives the multi-stage telescopic rod 511 to move downward, and the fixed shell 52 moves synchronously with the multi-stage telescopic rod 511. The two limit columns 514 are set to ensure that the position of the fixed shell 52 only moves in the up and down directions. When the first telescopic section of the multi-stage telescopic rod 511 and the limit piece thereon are inserted into the placement groove on the splicing mold 2, the lower surface of the fixed shell 52 is in contact with the upper surface of the splicing mold 2. As the multi-stage telescopic rod 511 continues to move upward, the fixed shell 52 is moved downward. Continue to move downward, at this time the first telescopic section begins to contract, pushing the push plate 513 to continue to move downward, when the push plate 513 contacts the driving member 55, the driving member 55 drives the limiting member 53 to limit and stabilize the insulating sleeve on the iron core, as the multi-stage telescopic rod 511 continues to move, when the first telescopic section is fully contracted, the second telescopic section begins to contract, and at the same time, the pushing ring 512 contacts the clamping member 2 54, and the pushing ring 512 drives the clamping member 2 54 to clamp the connecting piece on the insulating sleeve and connect it to the winding on the insulating sleeve.

[0043] like Figure 4 、 Figure 6 and Figure 7As shown, the limiting member 53 includes a plurality of accommodating cavities 533 distributed in a circular array inside the fixed shell 52. The positions on the outer circumferential surface of the fixed shell 52 corresponding to the accommodating cavities 533 are fixedly connected to the mounting shells 532. The corresponding mounting shells 532 and the interior of the accommodating cavities 533 are fixedly connected to a group of clamping bars 531. The corresponding clamping bars 531 move toward each other. The interior of the mounting shell 532 corresponding to the clamping bars 531 is hinged with a shift rod 534.

[0044] like Figure 4 、 Figure 6 and Figure 7 As shown, the driving member 55 includes a plurality of T-shaped push rods 553 in a circular array that are slidably connected to the interior of the fixed shell 52 through a limit sleeve 554 along the radial direction of the fixed shell 52. The plurality of T-shaped push rods 553 correspond one-to-one to the plurality of accommodating cavities 533. The positions on the upper surface of the fixed shell 52 corresponding to the T-shaped push rods 553 all slide in the up and down directions and are penetrated by inclined push blocks 552. The positions on the upper surface of the fixed shell 52 corresponding to the inclined push blocks 552 are elastically slidably connected to the return spring rods 551.

[0045] like Figure 4 、 Figure 6 and Figure 7 As shown, the end of the T-shaped push rod 553 close to the fixed shell 52 is rotatably connected to an auxiliary ball, and the auxiliary ball slides with the inclined surface of the corresponding inclined push block 552. A pushing frame is fixedly connected on the circumferential surface of the T-shaped push rod 553 and located inside the accommodating cavity 533 to push the clamping bar 531 inside the accommodating cavity 533 to move. The end of the T-shaped push rod 553 away from the fixed shell 52 cooperates with the shift rod 534 to push the clamping bar 531 inside the mounting shell 532 to move.

[0046] When the multi-stage telescopic rod 511 continues to move downward, the pushing plate 513 pushes the reset spring rod 551 to move downward, and the spring on the reset spring rod 551 is compressed, while pushing the inclined surface pushing block 552 to move downward. The inclined surface of the inclined surface pushing block 552 is in contact with the auxiliary ball on the T-shaped push rod 553 and moves downward, and at the same time, a thrust is generated on the T-shaped push rod 553 in the direction of the center of the fixed shell 52, pushing the T-shaped push rod 553 to move on the limiting sleeve 554 away from the center of the fixed shell 52.

[0047] When the T-shaped push rod 553 moves in the direction away from the center of the fixed shell 52, the T-shaped push rod 553 pushes the two clamping bars 531 inside the accommodating cavity 533 to move in the direction away from the center of the fixed shell 52 through the pushing frame thereon. At the same time, the end of the T-shaped push rod 553 away from the center of the fixed shell 52 pushes the deflector rod 534 to deflect inside the mounting shell 532. At this time, the end of the deflector rod 534 close to the T-shaped push rod 553 deflects in the direction away from the center of the fixed shell 52, so that the deflector rod 534 pushes the clamping bars 531 inside the mounting shell 532 to move in the direction close to the center of the fixed shell 52. The two corresponding clamping bars 531 move toward each other, clamping the insulating sleeve on the iron core to maintain the stability of the insulating sleeve.

[0048] like Figure 4 、 Figure 8 and Figure 9 As shown, the clamping member 2 54 includes a plurality of storage boxes 541 in a circular array fixedly connected to the upper surface of the fixed shell 52, and the plurality of storage boxes 541 correspond one-to-one to the plurality of accommodating cavities 533. A cover 542 is clamped on the upper surface of the storage box 541, and a displacement limiting rod 544 is fixedly connected to the front surface of the storage box 541. A push plate 543 is connected to the displacement limiting rod 544 for sliding in the up and down directions. A wedge block is fixedly connected to the lower surface of the cover 542, and wedge grooves are provided at the positions of the wedge blocks on the upper surface of the storage box 541 corresponding to the covers 542.

[0049] like Figure 4 、 Figure 8 and Figure 9 As shown, the horizontal section of the push plate 543 is slidably connected to the circumferential surface of the displacement limiting rod 544 in the up and down directions, and a return spring is sleeved on the circumferential surface of the displacement limiting rod 544 and below the horizontal section of the push plate 543, and the rear surface of the storage box 541 is slidably connected to a spring rod 1, and the spring rod 1 passes through the interior of the storage box 541, and the cover 542 is provided with a connecting groove at the position of the horizontal section of the push plate 543, and the vertical section of the push plate 543 slides with the connecting groove, and a plurality of connecting plates are arranged inside the storage box 541, and the position of the push plate 543 corresponds to the position of the connecting plate farthest from the center of the fixed shell 52 inside the storage box 541, and a through groove adapted to the size of the bottom end of the connecting plate is provided at the lower surface of the storage box 541 corresponding to the position of the connecting plate farthest from the center of the fixed shell 52, and the position of the through groove corresponds to the position of the insulating sleeve after limiting.

[0050] During specific use, when the clamping strip 531 completes clamping of the insulating sleeve and the pushing ring 512 pushes the clamping piece 2 54 to clamp the connecting piece on the insulating sleeve, the pushing ring 512 moves downward and fits on the pushing plate 543. As the pushing ring 512 continues to move downward, the pushing plate 543 moves downward on the displacement limiting rod 544. The pushing plate 543 pushes the connecting piece inside the storage box 541 downward from the inside of the storage box 541. The connecting piece passes through the through groove at the bottom end of the storage box 541 and is clamped on the insulating sleeve. When the pushing plate 543 pushes a connecting piece out of the inside of the storage box 541, the spring rod 1 pushes all the connecting pieces to move in a direction away from the center of the fixed shell 52 under the action of its own elastic force, so that the next connecting piece moves to above the through groove on the storage box 541.

[0051] After the iron core and the connecting piece are clamped, the iron core can be spliced ​​and welded and the connecting piece and the winding can be spot-welded simultaneously through external welding equipment.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations 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 orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0053] Furthermore, the terms "first," "second," "number one," and "number two" 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 designated as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0054] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0055] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A motor stator assembly welding fixture, comprising a base, a splicing mold, and a lifting platform, wherein the lifting platform is fixedly connected to the center of the upper surface of the base, and the splicing mold is installed on the upper surface of the lifting platform, characterized in that: The upper surface of the base is provided with a clamping mechanism 1 for welding multiple iron cores, and the upper surface of the lifting platform is provided with a clamping mechanism 2 for assisting in the installation of the connecting piece; The clamping mechanism 1 includes cylinders fixedly connected to the upper surface of the base and distributed in a circumferential array, and the telescopic end of the cylinder is provided with a clamping member 1 for limiting the position of the divided iron core; The second clamping mechanism includes a fixed shell arranged above the lifting platform, a pushing member is provided on the upper surface of the fixed shell, a limiting member for stabilizing the segmented iron core is provided on the fixed shell, a second clamping member for installing the connecting piece is provided on the upper surface of the pushing member, and a driving member for driving the limiting member to limit the insulating sleeve is provided on the fixed shell; A pair of clamping pieces are used to position and clamp the segmented stators before welding to perform segmented core splicing and welding. The segmented cores are limited by the limiting piece and the clamping piece is used to concentrically clamp the connecting pieces on multiple segmented cores, so that the segmented core splicing and welding and the connecting piece welding are performed simultaneously. The second clamping member includes a plurality of storage boxes in a circular array fixedly connected to the upper surface of the fixed shell, the upper surface of the storage box is clamped with a cover, the front surface of the storage box is fixedly connected to a displacement limiting rod, and a push plate is slidably connected to the displacement limiting rod in the up and down directions.

2. The motor stator assembly welding fixture according to claim 1, characterized in that: The clamping part includes a movable platform fixedly connected to the telescopic end of the cylinder, and three arc-surface clamping blocks are fixedly connected to the upper surface of the movable platform. The middle arc-surface clamping block on each movable platform is fixedly connected to an elastic telescopic rod on a side away from the splicing mold. The telescopic end of the elastic telescopic rod passes through the arc surface of the arc-surface clamping block and is fixedly connected to the limited arc-surface block. An L-shaped push rod is fixedly connected to one of the movable platforms.

3. The motor stator assembly welding fixture according to claim 1, characterized in that: The pushing member includes a multi-stage telescopic rod slidably connected to the upper surface of the fixed shell along the up and down directions, a pushing ring is fixedly connected to the fixed section of the multi-stage telescopic rod, and the telescopic section at the bottom end of the multi-stage telescopic rod is fixedly connected to a pushing plate, and two limiting columns are passed through the upper and lower surfaces of the pushing plate and are slidably connected.

4. The motor stator assembly welding fixture according to claim 1, characterized in that: The limiting member includes a plurality of accommodating cavities distributed in a circular array inside the fixed shell. The positions on the outer circumferential surface of the fixed shell corresponding to the accommodating cavities are fixedly connected to the mounting shells. A group of clamping bars are fixedly connected to the corresponding mounting shells and the interiors of the accommodating cavities. The corresponding clamping bars move toward each other, and the positions inside the mounting shell corresponding to the clamping bars are hinged with shift rods.

5. The motor stator assembly welding fixture according to claim 1, characterized in that: A wedge-shaped block is fixedly connected to the lower surface of the cover, and a wedge-shaped groove is provided on the upper surface of the storage box at a position corresponding to the wedge-shaped block on the cover.

6. The motor stator assembly welding fixture according to claim 1, characterized in that: The horizontal section of the push plate is slidably connected to the circumferential surface of the displacement limiting rod in the up and down directions. A return spring is sleeved on the circumferential surface of the displacement limiting rod and below the horizontal section of the push plate. The rear surface of the storage box is slidably connected to a spring rod 1, which runs through the interior of the storage box.

7. The motor stator assembly welding fixture according to claim 1, characterized in that: The cover is provided with a connecting groove at the position corresponding to the horizontal section of the push plate, and the vertical section of the push plate slides in cooperation with the connecting groove. A plurality of connecting plates are arranged inside the storage box, and the position of the push plate corresponds to the position of the connecting plate farthest from the center of the fixed shell inside the storage box.

8. The motor stator assembly welding fixture according to claim 1, characterized in that: The driving member includes a plurality of T-shaped push rods in a circular array that are slidably connected to the inside of the fixed shell through a limit sleeve along the radial direction of the fixed shell. The positions of the T-shaped push rods on the upper surface of the fixed shell all slide in the up and down directions and are connected through an inclined push block. The positions of the inclined push blocks on the upper surface of the fixed shell are elastically slidably connected to a return spring rod.

9. The motor stator assembly welding fixture according to claim 8, characterized in that: One end of the T-shaped push rod close to the fixed shell is rotatably connected to an auxiliary ball, and the auxiliary ball is slidably matched with the inclined surface of the corresponding inclined surface push block.

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