Welding device and method based on permanent magnet synchronous servo motor stator production

Abstract

The invention discloses a welding device and method based on permanent magnet synchronous servo motor stator production, and relates to the technical field of stator welding, the welding device comprises a supporting cabinet and a plurality of stator iron cores used for stacking, winding grooves are formed in the stator iron cores, and the top of the supporting cabinet is fixedly connected with an upper support used for protection; two mounting covers are fixedly connected to the top of the supporting cabinet, a pressing device used for pressing the stator cores downwards is arranged between the two mounting covers, and a driving assembly drives an ejection assembly to rotationally ascend from a rotating disc and continuously penetrate through winding grooves in the stator cores, so that the stator cores are completely overlapped and aligned; and finally, the multiple stator iron cores are sequentially welded through the welding device, the multiple stator iron cores are adjusted through equipment, adjustment after manual placement is avoided, the multiple stator iron cores can be directly and sequentially placed, and workers do not need to align and place the stator iron cores in advance.

Description

Technical Field

[0001] The invention relates to the technical field of stator welding, and in particular to a welding device and method based on the production of a permanent magnet synchronous servo motor stator. Background Art

[0002] The motor stator is an important component of motors such as generators and starters. The stator consists of three parts: the stator core, the stator winding and the frame. In order to make it more firm with the silicon steel sheets, several welds are usually welded axially on the outer circle of the stacked stator through welding equipment.

[0003] The patent application with reference publication number CN117943731B discloses an automatic welding device for a generator stator, comprising a housing and a platform fixedly installed therein, a circular plate fixedly connected to the upper surface of the platform, a plurality of pairs of brackets fixedly connected to the surface of the circular plate, a first rotating shaft rotatably connected to the inner side of the bracket, a gear coaxially fixedly connected to the surface of the first rotating shaft, a pentagonal prism vertically movable up and down is arranged above the circular plate, and a glass barrel is fixedly installed on the surface of the circular plate. The automatic welding device for the generator stator, in this welding process, does not require the rotation of the rotor and the reciprocating up and down movement of the welding head to weld multiple gaps to be welded, and the first tooth plate and the second tooth plate move toward each other, so that the stator body and the welding mechanism move toward each other, and the welding mechanism welds the stator weld from top to bottom at one time, thereby improving the welding speed of the stator body, and thus improving the production rate of the stator body.

[0004] In the above scheme, personnel stack the motor stators and then place them on the fixture. In the actual production process, the stator core is prone to misalignment after placement, so personnel are required to make adjustments. In addition, personnel are required to make adjustments in advance before each placement, and it is impossible to automatically adjust the stacking of multiple stators.

[0005] Therefore, it is necessary to provide a welding device and method based on the production of permanent magnet synchronous servo motor stators to solve the above technical problems. Summary of the invention

[0006] The object of the present invention is to provide a welding device and method based on the production of permanent magnet synchronous servo motor stators to solve the problems of the defects of the prior art mentioned in the above background technology.

[0007] Based on the above ideas, the present invention provides the following technical solutions: a welding device based on the production of permanent magnet synchronous servo motor stators, comprising a support cabinet and a plurality of stator cores for stacking, a winding groove is provided inside the stator core, an upper bracket for protection is fixedly connected to the top of the support cabinet, two mounting covers are fixedly connected to the top of the support cabinet, a pressing device for pressing down the stator core is arranged between the two mounting covers, and also includes: A support cylinder is fixedly connected to the top of the support cabinet, and a rotating disk for placing multiple stator cores is rotatably connected to the top of the support cylinder. A fixed disk is arranged inside the rotating disk, and a fixed frame is arranged inside the support cabinet. Multiple connecting rods are fixedly connected between the fixed frame and the fixed disk. The fixed disk is provided with a support mechanism for positioning multiple stator cores; The shaping mechanism is arranged inside the support cabinet and below the support cylinder. The shaping mechanism is composed of an ejection assembly and a driving assembly. The driving assembly drives the ejection assembly to rotate and rise. The ejection assembly passes through the winding slots on the multiple stator cores in sequence to align the multiple stator cores. A welding assembly is arranged on one side of the top of the support tube and is used to weld the outer sides of multiple stator cores in sequence.

[0008] As a further solution of the present invention: the expansion mechanism comprises: A bidirectional screw rod, the thread directions of the two ends of the bidirectional screw rod are set to be opposite, the bidirectional screw rod passes through the fixed plate and is rotatably connected to the fixed plate, a first motor is fixedly connected to the bottom of the fixed plate, and the output shaft of the first motor is fixedly connected to the bidirectional screw rod; Two moving seats, both ends of the bidirectional screw rod respectively penetrate the two moving seats and are connected with the moving seats through a ball nut pair; Multiple movable plates are arranged in a ring around the bidirectional screw rod. The outer sides of the two movable seats are rotatably connected with pushing support plates corresponding to the multiple movable plates one by one. The pushing support plates are rotatably connected to the movable plates. When the two movable seats approach each other, the movable plates are pushed to move by the pushing support plates.

[0009] As a further solution of the present invention: the spreading mechanism further includes contact members corresponding to the plurality of movable plates one by one, and a plurality of connecting members are provided between the contact members and the movable plates.

[0010] As a further solution of the present invention: the connecting piece includes: A connecting frame, the connecting frame is fixedly connected to a side of the moving plate away from the bidirectional screw rod; A rotating rod is rotatably connected to the inside of the connecting frame, a first gear is fixedly connected to the outside of the rotating rod, and a second rack is meshingly connected to the outside of the first gear; Two second gears, both of which are fixedly connected to the outside of the rotating rod and are respectively arranged on both sides of the first gear, both of which are meshedly connected to the outside of the two second gears with the first racks, and both of which are arranged opposite to the second racks; The two first racks and the second rack are connected to the connecting frame through the elastic member.

[0011] As a further solution of the present invention: the contact element comprises: A second support plate, the second support plate is fixedly connected to the second rack; Two first support plates and two second support plates are respectively arranged on both sides of the first support plate, and the two first support plates are respectively fixedly connected to the two first racks. When the first support plates contact the inner side of the stator core, the second support plates are continuously pushed through the connecting piece to extend into the winding slot.

[0012] As a further solution of the present invention: the driving assembly comprises: The support plate is arranged below the support cylinder, and a plurality of first electric push rods for lifting are fixedly connected between the support plate and the support cylinder; The third gear is rotatably connected to the top of the support plate, the outer side of the third gear is meshed with the first outer gear ring, the first outer gear ring is fixedly connected to the outer side of the ejection assembly, the bottom of the support plate is fixedly connected to the second motor, the output shaft of the second motor is fixedly connected to the third gear, when the third gear rotates, the ejection assembly is driven to rotate through the first outer gear ring and sequentially passes through the winding slots on the stator core.

[0013] As a further solution of the present invention: the ejection assembly comprises: A rotating frame connected to the inside of the supporting plate is rotatably provided with a plurality of limit slots on the top of the rotating frame; A plurality of movable seats, each of which is disposed inside the limiting groove and extends into the rotating frame, and each of which has an adjusting piece passing through the stator core on its top; Multiple driving screws, all of which are rotatably connected to the inside of the rotating frame, and the driving screws are arranged in a ring around the center of the rotating frame, and the multiple driving screws respectively penetrate multiple movable seats and are connected to the movable seats through ball nut pairs, and are used to adjust the distance according to the winding grooves on different stator cores; A second outer gear ring is rotatably connected to the inside of the rotating frame, a fourth gear is meshedly connected to the outside of the second outer gear ring, a third motor is fixedly connected to the inside of the rotating frame, an output shaft of the third motor is fixedly connected to the fourth gear, a bevel gear plate is fixedly connected to the top of the second outer gear ring, a plurality of bevel gears are meshedly connected to the outside of the bevel gear plate, and the plurality of bevel gears are respectively fixedly connected to the outsides of a plurality of driving screw rods.

[0014] As a further solution of the present invention: the adjusting member includes a fixed cylinder fixedly connected to the top of the movable seat, an ejector rod is slidably connected inside the fixed cylinder, and a spring is fixedly connected between the ejector rod and the fixed cylinder. When the ejector rod contacts the bottom of the stator core, the ejector rod is compressed, and when it rotates to the winding groove, the spring pushes the ejector rod to pass through the winding groove.

[0015] As a further solution of the present invention: the welding assembly comprises: A mounting frame fixedly connected to the top of the support tube, wherein a lifting module is arranged inside the mounting frame; The mounting seat is arranged inside the mounting frame and fixed at the moving end of the lifting module, and a second electric push rod is fixedly connected to the outer side of the mounting seat, and a welding gun for welding is fixedly connected to the telescopic end of the second electric push rod.

[0016] A welding method based on the production of a permanent magnet synchronous servo motor stator is also provided, comprising: Step 1: stack multiple stator cores in sequence on top of the rotating disk on top of the support tube; Step 2: tensioning the inner sides of the multiple stator cores through the expansion mechanism to ensure that the multiple stator cores are at the same center of a circle, and pressing the multiple stator cores through the pressing device; Step 3: The driving assembly drives the ejection assembly to rotate and rise from the rotating disk, continuously passing through the winding slots on the stator core, and completely aligning the multiple stator cores; Step 4: Finally, multiple stator cores are welded in sequence by a welding device.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The driving assembly drives the ejection assembly to rotate and rise from the rotating disk, continuously passing through the winding slots on the stator core, and completely aligning the multiple stator cores; finally, the multiple stator cores are welded in sequence by the welding device, and the multiple stator cores are adjusted by the equipment, avoiding manual adjustment after placement, and multiple stator cores can be directly placed in sequence without the need for personnel to align and place in advance.

[0018] 2. By pushing the moving plate outward through the pushing support plate between the moving seat and the moving plate, multiple moving plates can be fitted with the inner diameters of multiple stator cores, ensuring the adjustment of multiple stator cores and ensuring the stability of welding of multiple stator cores during the welding process.

[0019] 3. The first rack drives the meshing second gear to rotate, and the second gear drives the first gear to rotate through the rotating rod, so that the second rack moves forward, and then pushes the second support plate and the first support plate to move in the opposite direction, so that the second support plate is inserted into the winding groove set inside the stator core, and multiple winding grooves are aligned by extrusion, so as to adjust for slight misalignment of multiple stator cores.

[0020] 4. The adjusting part passes through the rotating disk and then continuously contacts the stator core on the rotating disk. When the adjusting part rotates to the winding groove opened on the stator core, the spring inside the adjusting part pushes the ejector rod to rise, so that the ejector rod is inserted into the winding groove. When the ejector rod rotates, it drives the stator core to rotate together, and continuously corrects other stator cores, thereby avoiding manual placement and improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the pressing device of the present invention; Figure 3 The present invention Figure 2 A schematic diagram of the enlarged structure of part A; Figure 4 It is a schematic diagram of the support tube structure of the present invention; Figure 5 It is a schematic diagram of the support plate structure of the present invention; Figure 6 It is a schematic diagram of the structure of the propping mechanism of the present invention; Figure 7 It is a schematic diagram of the bidirectional screw structure of the present invention; Figure 8 It is a schematic diagram of the structure of the movable plate of the present invention; Fig. 9 The present invention Figure 8 A schematic diagram of the enlarged structure of part B; Fig.10 It is a schematic diagram of the cross-sectional structure of the support tube of the present invention; Fig.11 It is a schematic diagram of the structure of the drive assembly of the present invention; Fig.12 It is a schematic diagram of the structure of the ejection assembly of the present invention; Fig.13 It is a schematic diagram of the cross-sectional structure of the adjusting member of the present invention.

[0023] In the figure: 1, support cabinet; 101, upper bracket; 103, installation cover; 2, support cylinder; 201, fixed plate; 202, rotating plate; 203, fixed frame; 204, connecting support rod; 501, two-way screw rod; 502, moving seat; 503, moving plate; 505, first support plate; 506, second support plate; 507, connecting frame; 5071, rotating rod; 5072, first gear; 5073, second gear; 5074, first rack; 5075, second rack; 5077, sliding seat; 5078, reset spring; 508, push support plate; 6, support plate; 601, first An electric push rod; 602, a third gear; 603, a first outer gear ring; 7, a rotating frame; 701, a second outer gear ring; 702, a bevel gear plate; 703, a driving screw; 704, a bevel gear; 705, a movable seat; 706, an adjusting member; 7061, a fixing cylinder; 7062, an ejector rod; 7063, a spring; 707, a fourth gear; 708, a third motor; 8, a mounting frame; 801, a mounting seat; 802, a second electric push rod; 803, a welding gun; 901, a third electric push rod; 902, a lower pressure plate; 903, a fixed support plate; 10, a stator core; 1001, a winding groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements 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.

[0026] like Figures 1 to 13 As shown, a welding device and method based on the production of permanent magnet synchronous servo motor stator includes the following embodiments: Embodiment 1: Figure 1 , Figure 2 and Figure 4As shown, it includes a support cabinet 1 and a plurality of stator cores 10 for stacking, a winding groove 1001 is opened inside the stator core 10, an upper bracket 101 for protection is fixedly connected to the top of the support cabinet 1, two mounting covers 103 are fixedly connected to the top of the support cabinet 1, and a pressing device for pressing down the stator core 10 is arranged between the two mounting covers 103. The pressing device is provided by arranging a lower pressing plate 902 above the support cylinder 2, and a third electric push rod 901 is fixedly connected inside the two mounting covers 103. A fixed support plate 903 is fixedly connected between the telescopic end of the third electric push rod 901 and the lower pressing plate 902, and the fixed support plate 903 is pushed down by the third electric push rod 901, and the fixed support plate 903 presses the top of the stacked stator core 10, and also includes: A support cylinder 2 is fixedly connected to the top of the support cabinet 1, and a rotating disk 202 for placing multiple stator cores 10 is rotatably connected to the top of the support cylinder 2. A fixed disk 201 is arranged inside the rotating disk 202. A fixed frame 203 is arranged inside the support cabinet 1. Multiple connecting rods 204 are fixedly connected between the fixed frame 203 and the fixed disk 201. The fixed disk 201 is provided with a support mechanism for positioning multiple stator cores 10; The shaping mechanism is arranged inside the support cabinet 1 and below the support cylinder 2. The shaping mechanism is composed of an ejection assembly and a driving assembly. The driving assembly drives the ejection assembly to rotate and rise. The ejection assembly sequentially passes through the winding grooves 1001 on the multiple stator cores 10 to align the multiple stator cores 10. The welding assembly is arranged on one side of the top of the support tube 2 and is used to weld the outer sides of multiple stator cores 10 in sequence.

[0027] In the specific implementation, during the actual welding process, the multiple stator cores 10 are often aligned and placed in advance, and then placed on the clamped workpiece, and then welded by the welding device. In this way, during the placement process after alignment, the multiple stator cores 10 are also prone to shaking and misalignment, and personnel are required to adjust. Therefore, in this solution, the multiple stator cores 10 are stacked in sequence on the top of the rotating disk 202 at the top of the support tube 2; and then the inner sides of the multiple stator cores 10 are tensioned by the expansion mechanism to ensure that the multiple stator cores 10 The plurality of stator cores 10 are located at the same center of a circle, and are pressed by a pressing device; the ejection component is driven by a driving component to rotate and rise from the rotating disk 202, and continuously passes through the winding grooves 1001 on the stator core 10, so that the plurality of stator cores 10 are completely overlapped and aligned; finally, the plurality of stator cores 10 are welded in sequence by a welding device, and the plurality of stator cores 10 are adjusted by the equipment, thereby avoiding manual adjustment after placement, and the plurality of stator cores 10 can be directly placed in sequence without the need for personnel to align and place in advance.

[0028] Embodiment 2: Figure 5 , Figure 6 , Figure 8 and Fig. 9 As shown, the expansion mechanism includes: A bidirectional screw rod 501, the thread directions of both ends of the bidirectional screw rod 501 are set to be opposite, the bidirectional screw rod 501 passes through the fixed disk 201 and is rotatably connected to the fixed disk 201, a first motor is fixedly connected to the bottom of the fixed disk 201, and the output shaft of the first motor is fixedly connected to the bidirectional screw rod 501; Two moving seats 502, two ends of the bidirectional screw rod 501 respectively penetrate the two moving seats 502 and are connected to the moving seats 502 through a ball nut pair; Multiple movable plates 503 are arranged in a ring around the bidirectional screw rod 501. The outer sides of the two movable seats 502 are rotatably connected with pushing support plates 508 corresponding to the multiple movable plates 503. The pushing support plates 508 are rotatably connected to the movable plates 503. When the two movable seats 502 approach each other, the movable plates 503 are pushed to move by pushing the support plates 508.

[0029] In specific implementation, when personnel place multiple stator cores 10 on the rotating disk 202, by starting the first motor at the bottom of the fixed disk 201, the output shaft of the first motor drives the bidirectional screw rod 501 to rotate. When the bidirectional screw rod 501 rotates, it drives the two movable seats 502 to move relative to each other, so that the pushing support plate 508 between the movable seat 502 and the movable plate 503 pushes the movable plate 503 outward to be spread out, so that the multiple movable plates 503 can fit with the inner diameters of the multiple stator cores 10, ensuring the adjustment of the multiple stator cores 10, and the stability of the welding of the multiple stator cores 10 can also be ensured during the welding process.

[0030] like Figure 8 and Fig. 9 As shown, in this embodiment: the expansion mechanism further includes contact members corresponding to the plurality of movable plates 503 one by one, and a plurality of connecting members are provided between the contact members and the movable plates 503 .

[0031] Connectors include: A connecting frame 507, the connecting frame 507 is fixedly connected to a side of the moving plate 503 away from the bidirectional screw rod 501; A rotating rod 5071 is rotatably connected to the inside of the connecting frame 507, a first gear 5072 is fixedly connected to the outer side of the rotating rod 5071, and a second rack 5075 is meshedly connected to the outer side of the first gear 5072; Two second gears 5073, both of which are fixedly connected to the outside of the rotating rod 5071 and are respectively arranged on both sides of the first gear 5072, both of which are meshedly connected to the outside of the two second gears 5073 with the first rack 5074, and both of which are arranged opposite to the second rack 5075; Elastic member, the two first racks 5074 and the second rack 5075 are respectively connected to the connecting frame 507 through the elastic member, the elastic member adopts a sliding seat 5077 fixedly connected to the connecting frame 507, the three sliding seats 5077 respectively pass through the two first racks 5074 and the second rack 5075 and are slidably connected to the two first racks 5074 and the second rack 5075, and return springs 5078 are provided on the outer sleeves of the three sliding seats 5077, and the two ends of the three return springs 5078 are respectively fixedly connected to the connecting frame 507 fixedly connected between the first rack 5074 and the second rack 5075.

[0032] Contacts include: A second support plate 506, the second support plate 506 is fixedly connected to the second rack 5075; The two first support plates 505 and the two second support plates 506 are respectively arranged on both sides of the first support plate 505, and the two first support plates 505 are respectively fixedly connected to the two first racks 5074. When the first support plate 505 contacts the inner side of the stator core 10, the second support plate 506 is continuously pushed by the connecting piece to extend to the inside of the winding groove 1001.

[0033] In specific implementation, based on the above scheme, in view of the situation that the personnel have placed and aligned multiple stator cores 10 in advance, when multiple stator cores 10 are placed on the rotating disk 202 in advance, the winding grooves 1001 of the stator cores 10 may deviate during the transfer process. In this scheme, when the moving plate 503 moves, the moving plate 503 moves through multiple connecting member contacts, so that the two first support plates 505 in the contact members first contact with the inner diameter of the stator core 10. At this time, the first support plates 505 cannot move, and the connecting frame 507 is pushed by the moving plate 503 to continue to move. The first rack 5074 fixedly connected to one side of the first support plate 505 moves, and the first rack 5074 drives the meshing second gear 5073 to rotate. The second gear 5073 drives the first gear 5072 to rotate through the rotating rod 5071, so that the second rack 5075 moves forward, and then pushes the second support plate 506 and the first support plate 505 to move in the opposite direction, so that the second support plate 506 is inserted into the winding groove 1001 set inside the stator core 10, and the multiple winding grooves 1001 are aligned by extrusion, so as to adjust the slight misalignment of the multiple stator cores 10.

[0034] Embodiment 3: Fig.10 , Fig.11 , Fig.12 and Fig.13 As shown, the drive assembly includes: The support plate 6 is arranged below the support cylinder 2, and a plurality of first electric push rods 601 for lifting are fixedly connected between the support plate 6 and the support cylinder 2; The third gear 602 is rotatably connected to the top of the support plate 6, the outer side of the third gear 602 is meshedly connected with the first outer gear ring 603, the first outer gear ring 603 is fixedly connected to the outer side of the ejection assembly, the bottom of the support plate 6 is fixedly connected with the second motor, the output shaft of the second motor is fixedly connected to the third gear 602, when the third gear 602 rotates, the ejection assembly is driven to rotate through the first outer gear ring 603 and sequentially passes through the winding slots 1001 on the stator core 10.

[0035] The ejector assembly includes: A rotating frame 7 is rotatably connected to the inside of the supporting plate 6, and a plurality of limiting grooves are provided on the top of the rotating frame 7; A plurality of movable seats 705, wherein the plurality of movable seats 705 are respectively arranged inside the limiting grooves and extend into the rotating frame 7, and the tops of the plurality of movable seats 705 are all provided with adjusting members 706 passing through the stator core 10; A plurality of driving screw rods 703, which are all rotatably connected to the inside of the rotating frame 7, and the driving screw rods 703 are arranged in a ring around the center of the rotating frame 7, and the plurality of driving screw rods 703 respectively penetrate a plurality of movable seats 705 and are connected to the movable seats 705 through ball nut pairs, so as to adjust the distance according to the winding slots 1001 on different stator cores 10; A second outer gear ring 701 is rotatably connected to the inside of the rotating frame 7, a fourth gear 707 is meshedly connected to the outer side of the second outer gear ring 701, a third motor 708 is fixedly connected to the inside of the rotating frame 7, an output shaft of the third motor 708 is fixedly connected to the fourth gear 707, a bevel gear plate 702 is fixedly connected to the top of the second outer gear ring 701, a plurality of bevel gears 704 are meshedly connected to the outer side of the bevel gear plate 702, and the plurality of bevel gears 704 are respectively fixedly connected to the outer sides of a plurality of driving screw rods 703.

[0036] The adjusting member 706 includes a fixed cylinder 7061 fixedly connected to the top of the movable seat 705, and an ejector rod 7062 is slidably connected inside the fixed cylinder 7061. A spring 7063 is fixedly connected between the ejector rod 7062 and the fixed cylinder 7061. When the ejector rod 7062 contacts the bottom of the stator core 10, the ejector rod 7062 is compressed. When it rotates to the winding groove 1001, the spring 7063 pushes the ejector rod 7062 to pass through the winding groove 1001.

[0037] In specific implementation, when a person directly places a plurality of stator cores 10 directly on the fixed plate 201, since the winding grooves 1001 opened on the plurality of stator cores 10 are staggered, the first electric push rod 601 is started, and the first electric push rod 601 drives the fixedly connected support plate 6 to start rising, and the second motor is started, and the output shaft of the second motor drives the third gear 602 to rotate, and the third gear 602 drives the meshingly connected first outer gear ring 603 to rotate, and the first outer gear ring 603 is fixedly connected to the outside of the rotating frame 7, so at this time, the plurality of adjustment members 706 on the rotating frame 7 are rotated together with the rotating frame 7. 7 is progressively raised, and during the rising process, as the rotating frame 7 rotates, the adjusting member 706 passes through the rotating disk 202, and then continuously contacts the stator core 10 on the rotating disk 202. When the adjusting member 706 rotates to the winding groove 1001 opened on the stator core 10, the spring 7063 inside the adjusting member 706 pushes the ejector rod 7062 to rise, so that the ejector rod 7062 is inserted into the winding groove 1001. When the ejector rod 7062 rotates, it drives the stator core 10 to rotate together, and continuously corrects other stator cores 10, thereby avoiding manual placement and improving processing efficiency. And for different stator cores 10, the third motor 708 inside the rotating frame 7 can also be used, and the third motor 708 drives the fourth gear 707 to rotate, and the fourth gear 707 drives the meshing second outer ring gear 701 to rotate, and the second outer ring gear 701 drives multiple bevel gears 704 to rotate through the bevel gear plate 702, and then synchronously adjusts the movement of the movable seats 705 on the multiple driving screw rods 703 to adjust the winding grooves 1001 on different stator cores 10.

[0038] like Figure 3 As shown, in this embodiment, the welding assembly includes: A mounting frame 8 is fixedly connected to the top of the support tube 2, and a lifting module is arranged inside the mounting frame 8; The mounting seat 801 is arranged inside the mounting frame 8 and fixed at the moving end of the lifting module, and a second electric push rod 802 is fixedly connected to the outer side of the mounting seat 801, and a welding gun 803 for welding is fixedly connected to the telescopic end of the second electric push rod 802.

[0039] During specific implementation, after multiple stator cores 10 are neatly placed, the lifting module inside the installation frame 8 is started. The lifting module can use an electric slide rail, which is not specifically limited here. The lifting module drives the second electric push rod 802 to move up and down, so that the welding gun 803 at one end of the second electric push rod 802 can quickly weld the multiple stator cores 10, and the driving component in the above-mentioned shaping mechanism drives the entire stator core 10 to rotate, thereby continuously welding the multiple stator cores 10.

[0040] A welding method based on the production of a permanent magnet synchronous servo motor stator is also provided, comprising: Step 1: stack multiple stator cores 10 in sequence on the top of the rotating disk 202 on the top of the support tube 2; Step 2: tensioning the inner sides of the multiple stator cores 10 through the expansion mechanism to ensure that the multiple stator cores 10 are at the same center of a circle, and pressing the multiple stator cores 10 through the pressing device; Step 3: The driving assembly drives the ejection assembly to rotate and rise from the rotating disk 202, and continuously passes through the winding slots 1001 on the stator core 10, so that the multiple stator cores 10 are completely overlapped and aligned; Step 4: Finally, the plurality of stator cores 10 are welded in sequence by a welding device.

[0041] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means 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 representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A welding device based on the production of a permanent magnet synchronous servo motor stator, comprising a support cabinet (1) and a plurality of stator cores (10) for stacking, wherein a winding groove (1001) is provided inside the stator core (10), an upper bracket (101) for protection is fixedly connected to the top of the support cabinet (1), two mounting covers (103) are fixedly connected to the top of the support cabinet (1), and a pressing device for pressing down the stator core (10) is arranged between the two mounting covers (103), characterized in that: Also includes: A support tube (2) is fixedly connected to the top of the support cabinet (1); a rotating disk (202) for placing multiple stator cores (10) is rotatably connected to the top of the support tube (2); a fixed disk (201) is arranged inside the rotating disk (202); a fixed frame (203) is arranged inside the support cabinet (1); multiple connecting rods (204) are fixedly connected between the fixed frame (203) and the fixed disk (201); and the fixed disk (201) is provided with a support mechanism for positioning the multiple stator cores (10); A shaping mechanism, the shaping mechanism is arranged inside the support cabinet (1) and below the support tube (2), the shaping mechanism is composed of an ejection assembly and a drive assembly, the drive assembly drives the ejection assembly to rotate and rise, and the ejection assembly sequentially passes through the winding grooves (1001) on the plurality of stator cores (10) to align the plurality of stator cores (10); A welding assembly is arranged on one side of the top of the support tube (2) and is used to sequentially weld the outer sides of the plurality of stator cores (10).

2. A welding device based on the production of permanent magnet synchronous servo motor stator according to claim 1, characterized in that: The expansion mechanism comprises: A bidirectional screw rod (501), wherein the thread directions of both ends of the bidirectional screw rod (501) are arranged to be opposite, the bidirectional screw rod (501) passes through the fixed disk (201) and is rotatably connected to the fixed disk (201), a first motor is fixedly connected to the bottom of the fixed disk (201), and an output shaft of the first motor is fixedly connected to the bidirectional screw rod (501); Two moving seats (502), two ends of the bidirectional screw rod (501) respectively penetrate the two moving seats (502) and are connected to the moving seats (502) via a ball nut pair; A plurality of movable plates (503) are provided in a ring shape around a bidirectional screw rod (501); the outer sides of the two movable seats (502) are rotatably connected with push support plates (508) corresponding to the plurality of movable plates (503); the push support plates (508) are rotatably connected to the movable plates (503); when the two movable seats (502) are close to each other, the movable plates (503) are pushed to move by the push support plates (508).

3. A welding device based on the production of permanent magnet synchronous servo motor stator according to claim 2, characterized in that: The spreading mechanism further comprises contact members corresponding one-to-one to the plurality of movable plates (503), and a plurality of connecting members are arranged between the contact members and the movable plates (503).

4. A welding device based on the production of permanent magnet synchronous servo motor stator according to claim 3, characterized in that: The connecting piece comprises: A connecting frame (507), the connecting frame (507) being fixedly connected to a side of the movable plate (503) away from the bidirectional screw rod (501); A rotating rod (5071) is rotatably connected to the interior of the connecting frame (507), a first gear (5072) is fixedly connected to the outside of the rotating rod (5071), and a second rack (5075) is meshingly connected to the outside of the first gear (5072); Two second gears (5073), the two second gears (5073) are both fixedly connected to the outside of the rotating rod (5071), and are respectively arranged on both sides of the first gear (5072), the outsides of the two second gears (5073) are both meshingly connected with the first rack (5074), and the two first racks (5074) are both arranged opposite to the second rack (5075); An elastic member, wherein the two first racks (5074) and the second rack (5075) are respectively connected to the connection frame (507) via the elastic member.

5. A welding device based on the production of permanent magnet synchronous servo motor stator according to claim 4, characterized in that: The contact element comprises: A second support plate (506), the second support plate (506) is fixedly connected to the second rack (5075); Two first support plates (505) and two second support plates (506) are respectively arranged on both sides of the first support plate (505), and the two first support plates (505) are respectively fixedly connected to the two first racks (5074). When the first support plates (505) are in contact with the inner side of the stator core (10), the second support plates (506) are continuously pushed by the connecting piece to extend into the winding groove (1001).

6. The welding device based on the production of permanent magnet synchronous servo motor stator according to claim 1, characterized in that: The drive assembly comprises: A support plate (6) is arranged below the support cylinder (2), and a plurality of first electric push rods (601) for lifting are fixedly connected between the support plate (6) and the support cylinder (2); A third gear (602) is rotatably connected to the top of the support disk (6); the outer side of the third gear (602) is meshedly connected to a first outer gear ring (603); the first outer gear ring (603) is fixedly connected to the outer side of the ejection assembly; a second motor is fixedly connected to the bottom of the support disk (6); the output shaft of the second motor is fixedly connected to the third gear (602); when the third gear (602) rotates, the ejection assembly is driven to rotate through the winding slots (1001) on the stator core (10) through the first outer gear ring (603).

7. A welding device based on the production of permanent magnet synchronous servo motor stator according to claim 6, characterized in that: The ejection assembly comprises: A rotating frame (7) is rotatably connected to the interior of the supporting plate (6), wherein a plurality of limiting grooves are formed on the top of the rotating frame (7); A plurality of movable seats (705), the plurality of movable seats (705) being respectively arranged inside the limiting grooves and extending into the interior of the rotating frame (7), and the tops of the plurality of movable seats (705) are each provided with an adjustment member (706) passing through the stator core (10); A plurality of driving screw rods (703), the plurality of driving screw rods (703) are all rotatably connected to the inside of the rotating frame (7), and the driving screw rods (703) are arranged in a ring around the center of the rotating frame (7), and the plurality of driving screw rods (703) respectively penetrate a plurality of movable seats (705) and are connected to the movable seats (705) via ball nut pairs, and are used to adjust the distance according to the winding grooves (1001) on different stator cores (10); A second outer gear ring (701) is rotatably connected to the inside of the rotating frame (7); a fourth gear (707) is meshedly connected to the outside of the second outer gear ring (701); a third motor (708) is fixedly connected to the inside of the rotating frame (7); an output shaft of the third motor (708) is fixedly connected to the fourth gear (707); a bevel gear plate (702) is fixedly connected to the top of the second outer gear ring (701); a plurality of bevel gears (704) are meshedly connected to the outside of the bevel gear plate (702); and the plurality of bevel gears (704) are respectively fixedly connected to the outsides of a plurality of driving screw rods (703).

8. The welding device based on the production of permanent magnet synchronous servo motor stator according to claim 7, characterized in that: The adjusting member (706) comprises a fixed cylinder (7061) fixedly connected to the top of the movable seat (705); an ejector rod (7062) is slidably connected inside the fixed cylinder (7061); a spring (7063) is fixedly connected between the ejector rod (7062) and the fixed cylinder (7061); when the ejector rod (7062) contacts the bottom of the stator core (10), the ejector rod (7062) is compressed, and when the ejector rod (7062) is rotated to the winding groove (1001), the spring (7063) pushes the ejector rod (7062) to pass through the winding groove (1001).

9. The welding device based on the production of permanent magnet synchronous servo motor stator according to claim 1, characterized in that: The welding assembly comprises: A mounting frame (8) fixedly connected to the top of the support tube (2), wherein a lifting module is arranged inside the mounting frame (8); The mounting seat (801) is arranged inside the mounting frame (8) and fixed to the movable end of the lifting module, and a second electric push rod (802) is fixedly connected to the outside of the mounting seat (801), and a welding gun (803) for welding is fixedly connected to the telescopic end of the second electric push rod (802).

10. A welding method based on the production of a permanent magnet synchronous servo motor stator, applicable to a welding device based on the production of a permanent magnet synchronous servo motor stator as claimed in any one of claims 1 to 9, characterized in that: include: Step 1: stacking a plurality of stator cores (10) in sequence on top of the rotating disk (202) on top of the support tube (2); Step 2: tightening the inner sides of the plurality of stator cores (10) by means of the expansion mechanism to ensure that the plurality of stator cores (10) are located at the same center of a circle, and pressing the plurality of stator cores (10) by means of the pressing device; Step three: the ejection assembly is driven by the driving assembly to rotate and rise from the rotating disk (202), and continuously passes through the winding grooves (1001) on the stator core (10), so that the multiple stator cores (10) are completely overlapped and aligned; Step 4: Finally, the plurality of stator cores (10) are welded in sequence using a welding device.

Images