CN115912814B - A stator torsion mechanism and a stator welding machine - Google Patents

A stator torsion mechanism and a stator welding machine Download PDF

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Publication number
CN115912814B
CN115912814B CN202211334034.5A CN202211334034A CN115912814B CN 115912814 B CN115912814 B CN 115912814B CN 202211334034 A CN202211334034 A CN 202211334034A CN 115912814 B CN115912814 B CN 115912814B
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stator
side wall
telescopic
stator core
rod
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CN115912814A (en
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胡惟言
胡洋
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Chongqing Vision Co ltd
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Chongqing Vision Co ltd
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Abstract

本发明公开了一种定子扭转机构，用于对定子铁芯进行扭斜，所述定子铁芯由若干定子散片叠放设置；所述定子铁芯的内壁上设置有与其轴线平行的扭槽；本机构包括基座，基座上设置有竖直设置的限位柱，所述定子铁芯套设在所述限位柱上；所述基座的外壁上具有限位槽，所述限位槽内设置有摆杆，所述摆杆位于限位槽以内，所述摆杆上设置有凸条，所述凸条部分位于限位槽以外，所述凸条的中部和伸缩装置的伸缩端铰接，所述伸缩装置安装在基座上；当定子铁芯套设在所述限位柱上时，所述凸条位于所述扭槽内；所述限位柱的下方设置有驱动机构，驱动机构具有伸缩杆，伸缩杆的端部和所述摆杆的下端铰接。本发明具有结构简单、操作简单、成本低、效率高等优点。

The present invention discloses a stator twisting mechanism, which is used for twisting the stator core, wherein the stator core is stacked by a plurality of stator loose sheets; a twisting groove parallel to the axis of the stator core is arranged on the inner wall of the stator core; the mechanism comprises a base, a vertically arranged limiting column is arranged on the base, and the stator core is sleeved on the limiting column; a limiting groove is arranged on the outer wall of the base, a swing rod is arranged in the limiting groove, the swing rod is located in the limiting groove, a convex strip is arranged on the swing rod, the convex strip part is located outside the limiting groove, the middle part of the convex strip is hinged with the telescopic end of the telescopic device, and the telescopic device is installed on the base; when the stator core is sleeved on the limiting column, the convex strip is located in the twisting groove; a driving mechanism is arranged below the limiting column, and the driving mechanism has a telescopic rod, and the end of the telescopic rod is hinged with the lower end of the swing rod. The present invention has the advantages of simple structure, simple operation, low cost, high efficiency, etc.

Description

Stator torsion mechanism and stator welding machine
Technical Field
The invention relates to a stator torsion mechanism and a stator welding machine, belongs to the technical field of motor stator processing equipment, and is used for carrying out torsion and welding on a motor stator.
Background
The permanent magnet synchronous generator has the advantages of simple structure, small volume, high efficiency, high power factor and the like. The permanent magnet motor stator adopts the chute design, so that the loss caused by tooth harmonic waves can be reduced, and the noise is reduced. The manufacturing process of the chute of the stator core is generally to cover the stator punching sheet on the mould for lamination, and the accurate skew angle and the orderly lamination of the punching sheet are ensured by the process assembly. The original manufacturing process is to position the inner diameter of the stator punching sheet and the notch of the punching sheet, embed the punching sheets into the inner tube one by one, and the straight groove of the inner tube is provided with a process key, thereby realizing the gradient control, pressing and welding of the laminated punching sheets. The prior equipment has the following problems that 1, the process of positioning and skew is complex, the stator punching sheets are assembled piece by piece through inner diameter positioning, the assembly efficiency is low, and 2, after skew lamination, the stator punching sheets cannot be immediately fastened, and the situation of displacement easily occurs in the process of transferring materials to the next station.
Disclosure of Invention
The invention aims to provide a stator torsion mechanism which has the advantages of simple structure, simple operation, low cost, high efficiency and the like and can quickly skew a motor stator.
In order to solve the technical problems, the invention adopts the following technical scheme:
A stator torsion mechanism is used for carrying out skew on a stator iron core, the stator iron core is formed by stacking a plurality of stator scattered sheets, torsion grooves parallel to the axis of the stator iron core are formed in the inner wall of the stator iron core, the stator iron core torsion mechanism comprises a base, a vertically arranged limit post is arranged on the base, the stator iron core is sleeved on the limit post, a limit groove is formed in the outer wall of the base, a swinging rod is arranged in the limit groove, the swinging rod is located in the limit groove, a raised strip is arranged on the swinging rod, part of the raised strip is located outside the limit groove, the middle part of the raised strip is hinged with the telescopic end of a telescopic device, the telescopic device is arranged on the base, when the stator iron core is sleeved on the limit post, the raised strip is located in the torsion groove, a driving mechanism is arranged below the limit post, and the driving mechanism is provided with a telescopic rod, and the end part of the telescopic rod is hinged with the lower end of the swinging rod.
In the stator torsion mechanism, the swinging device is a telescopic cylinder.
In the stator torsion mechanism, the limit groove comprises a first side wall and a second side wall, wherein the first side wall is composed of a first upper side wall and a first lower side wall, the second side wall is composed of a second upper side wall and a second lower side wall, the first upper side wall is vertically arranged, the first lower side wall is obliquely arranged, the second upper side wall is obliquely arranged, the second lower side wall is vertically arranged, and the first lower side wall is parallel to the second upper side wall.
The utility model provides a stator welding machine, includes above a stator torsion mechanism, this welding machine still includes the mount, and the upper portion fixed mounting of mount has the fixed plate, installs first elevating gear on the fixed plate, and first elevating gear's flexible end is the stator torsion structure of below, be fixed with the mounting bracket on first elevating gear's the flexible end, install actuating cylinder and actuating ring on the mounting bracket, install welder on the actuating ring, the actuating ring slides and sets up on the mounting bracket, actuating cylinder's piston rod with the actuating ring is articulated.
In the stator welding machine, the fixing plate is further provided with a second lifting device, the lifting end of the second lifting device faces downwards, the lifting end of the second lifting device is provided with a supporting plate, the supporting plate is provided with a pressing block, the shape of the lower surface of the pressing block is the same as that of the upper surface of the stator core, and the pressing block is located above the stator core.
In the stator welding machine, the first lifting device comprises a driving motor, the driving motor is fixed on the fixing plate, a screw rod is further rotatably arranged on the fixing plate, the driving motor is connected with the screw rod through a transmission belt, a lifting block is arranged on the screw rod, the lifting block is matched with the screw rod through threads, a connecting rod is fixed on the lifting block, a sliding rail is fixed at the lower end of the connecting rod, and the driving ring is arranged in the sliding rail.
Compared with the prior art, the invention has the advantages of simple structure, simple operation, low cost, high efficiency and the like, and can rapidly skew the motor stator.
Drawings
FIG. 1 is a schematic perspective view of a stator welding machine;
FIG. 2 is a schematic view of the internal structure of a stator welding machine;
FIG. 3 is a schematic perspective view of a stator welding machine;
FIG. 4 is an enlarged view of a portion of a stator welding machine;
FIG. 5 is an enlarged view of a portion of a stator welding machine;
fig. 6 is a schematic structural view of the driving structure.
The numerical control device comprises the following components of 1-convex strips, 2-swinging rods, 3-first upper side walls, 4-limit posts, 5-first side walls, 6-bases, 7-first lower side walls, 8-limit grooves, 9-second upper side walls, 10-second side walls, 11-second lower side walls, 12-telescopic devices, 13-fixing frames, 14-supporting plates, 15-fixing plates, 16-second lifting devices, 17-first lifting devices, 18-pressing blocks, 19-lead screws, 20-lifting blocks, 21-connecting rods, 22-driving motors, 23-driving belts, 24-sliding rails, 25-welding guns, 26-driving cylinders, 27-driving rings, 28-driving mechanisms and 29-telescopic rods.
The invention is further described below with reference to the drawings and the detailed description.
Detailed Description
The embodiment 1 of the stator torsion mechanism is used for carrying out torsion on a stator iron core, wherein the stator iron core is formed by stacking a plurality of stator loose sheets, torsion grooves parallel to the axis of the stator iron core are formed in the inner wall of the stator iron core, the mechanism comprises a base 6, a vertically arranged limit post 4 is arranged on the base 6, the stator iron core is sleeved on the limit post 4, a limit groove 8 is formed in the outer wall of the base 6, a swing rod 2 is arranged in the limit groove 8, the swing rod 2 is positioned in the limit groove 8, a raised strip 1 is arranged on the swing rod 2, part of the raised strip 1 is positioned outside the limit groove 8, the middle part of the raised strip 1 is hinged with the telescopic end of a telescopic device, the telescopic device is arranged on the base, when the stator iron core is sleeved on the limit post 4, the raised strip 1 is positioned in the torsion groove, a driving mechanism 28 is arranged below the limit post, the driving mechanism 28 is provided with a telescopic rod 29, and the end part of the telescopic rod 29 is hinged with the lower end of the swing rod. The telescopic device 12 is a swinging cylinder.
The embodiment 2 of the stator torsion mechanism is used for carrying out torsion on a stator iron core, wherein the stator iron core is formed by stacking a plurality of stator loose sheets, torsion grooves parallel to the axis of the stator iron core are formed in the inner wall of the stator iron core, the mechanism comprises a base 6, a vertically arranged limit post 4 is arranged on the base 6, the stator iron core is sleeved on the limit post 4, a limit groove 8 is formed in the outer wall of the base 6, a swing rod 2 is arranged in the limit groove 8, the swing rod 2 is positioned in the limit groove 8, a raised strip 1 is arranged on the swing rod 2, part of the raised strip 1 is positioned outside the limit groove 8, the middle part of the raised strip 1 is hinged with the telescopic end of a telescopic device, the telescopic device is arranged on the base, when the stator iron core is sleeved on the limit post 4, the raised strip 1 is positioned in the torsion groove, a driving mechanism 28 is arranged below the limit post, the driving mechanism 28 is provided with a telescopic rod 29, and the end part of the telescopic rod 29 is hinged with the lower end of the swing rod. The telescopic device 12 is a swinging cylinder.
The limiting groove 8 comprises a first side wall 5 and a second side wall 10, the first side wall 5 is composed of a first upper side wall 3 and a first lower side wall 7, the second side wall 10 is composed of a second upper side wall 9 and a second lower side wall 11, the first upper side wall 3 is vertically arranged, the first lower side wall 7 is obliquely arranged, the second upper side wall 9 is obliquely arranged, the second lower side wall 11 is vertically arranged, and the first lower side wall 7 and the second upper side wall 9 are parallel.
Embodiment 1 of a stator welding machine A stator welding machine comprises the stator torsion mechanism described in the above embodiment, the welding machine further comprises a fixing frame 13, a fixing plate 15 is fixedly arranged on the upper portion of the fixing frame 13, a first lifting device 17 is arranged on the fixing plate 15, a telescopic end of the first lifting device 17 faces to a stator torsion structure below, a mounting frame is fixed on the telescopic end of the first lifting device 17, a driving cylinder 26 and a driving ring 27 are arranged on the mounting frame, a welding gun 25 is arranged on the driving ring 27, the driving ring 27 is arranged on the mounting frame in a sliding mode, and a piston rod of the driving cylinder 26 is hinged with the driving ring 27.
Embodiment 2 of a stator welding machine A stator welding machine, including a stator torsion mechanism described in the above embodiment, this welding machine still includes mount 13, and the upper portion of mount 13 is fixed with fixed plate 15, installs first elevating gear 17 on the fixed plate 15, and the flexible end of first elevating gear 17 is towards the stator torsion structure of below, be fixed with the mounting bracket on the flexible end of first elevating gear 17, install actuating cylinder 26 and actuating ring 27 on the mounting bracket, install welder 25 on the actuating ring 27, actuating ring 27 slides and sets up on the mounting bracket, actuating cylinder 26's piston rod with actuating ring 27 articulates.
The fixed plate 15 is also provided with a second lifting device 16, the lifting end of the second lifting device 16 faces downwards, the lifting end of the second lifting device 16 is provided with a supporting plate 14, the supporting plate 14 is provided with a pressing block 18, the shape of the lower surface of the pressing block 18 is the same as that of the upper surface of the stator core, and the pressing block 18 is positioned above the stator core. The first lifting device 17 comprises a driving motor 22, the driving motor 22 is fixed on the fixed plate 15, a screw rod 19 is further rotatably arranged on the fixed plate 15, the driving motor 22 is connected with the screw rod 19 through a transmission belt 23, a lifting block 20 is arranged on the screw rod 19, the lifting block 20 is matched with the screw rod 19 through threads, a connecting rod 21 is fixed on the lifting block 20, a sliding rail 24 is fixed at the lower end of the connecting rod 21, and a driving ring 27 is arranged in the sliding rail 24.
When the stator winding piece is used, the stator winding piece is sleeved on the limiting post 4, the protruding strips 1 are located at corresponding positions of the stator core, the protruding strips 1 of the swinging rod 2 are located in torsion grooves of the stator core through controlling the telescopic device 12, then the telescopic rod 29 is driven to move through controlling the driving structure, the telescopic rod 29 drives the lower portion of the swinging rod 2 to move, and the swinging rod 2 is hinged to the telescopic end of the telescopic device, so that the swinging rod 2 rotates around the telescopic end of the telescopic device to enable the swinging rod 2 to incline, and the inclined swinging rod 2 drives the stator lamination to incline. Preferably, the driving mechanism 28 of the present embodiment has two telescopic rods 29, and the two telescopic rods 29 run in opposite directions, so that the stator lamination can be more smoothly skewed.
Then, the pressing block 18 is lowered by controlling the second lifting device 16, and the pressing block 18 fixes the stator loose pieces in the vertical direction, so that the stator loose pieces are prevented from being displaced axially or circumferentially in the welding process. The press block 18 is located in the middle of the drive ring 27 so that there is no interference between the two.
By controlling the first lifting device 17 to drive the driving ring 27 to move downwards, the driving cylinder 26 drives the driving ring 27 to rotate in the moving process, the driving ring 27 drives the welding gun 25 to rotate, and the welding gun 25 moves along the spiral line direction under the combination of the downward action and the rotation action, and the welding of the stator core is completed in the moving process.

Claims (2)

1.一种定子焊接机，其特征在于，包括定子扭转机构，定子扭转机构用于对定子铁芯进行扭斜，所述定子铁芯由若干定子散片叠放设置；所述定子铁芯的内壁上设置有与其轴线平行的扭槽；本定子扭转机构包括基座(6)，基座(6)上设置有竖直设置的限位柱(4)，所述定子铁芯套设在所述限位柱(4)上；所述基座(6)的外壁上具有限位槽(8)，所述限位槽(8)内设置有摆杆(2)，所述摆杆(2)位于限位槽(8)以内，所述摆杆(2)上设置有凸条(1)，所述凸条(1)部分位于限位槽(8)以外，所述凸条(1)的中部和伸缩装置的伸缩端铰接，所述伸缩装置安装在基座上；当定子铁芯套设在所述限位柱(4)上时，所述凸条(1)位于所述扭槽内；所述限位柱的下方设置有驱动机构(28)，驱动机构(28)具有伸缩杆(29)，伸缩杆(29)的端部和所述摆杆的下端铰接；1. A stator welding machine, characterized in that it comprises a stator twisting mechanism, the stator twisting mechanism is used to twist the stator core, the stator core is composed of a plurality of stator loose sheets stacked together; the inner wall of the stator core is provided with a twisting groove parallel to its axis; the stator twisting mechanism comprises a base (6), the base (6) is provided with a vertically arranged limit column (4), the stator core is sleeved on the limit column (4); the outer wall of the base (6) is provided with a limit groove (8), the limit groove (8) is provided with a swing rod (2), the swing rod The rod (2) is located within the limiting groove (8); a convex strip (1) is provided on the swing rod (2); a portion of the convex strip (1) is located outside the limiting groove (8); a middle portion of the convex strip (1) is hinged to a telescopic end of a telescopic device; and the telescopic device is installed on a base; when the stator core is sleeved on the limiting column (4), the convex strip (1) is located in the torsion groove; a driving mechanism (28) is provided below the limiting column; the driving mechanism (28) has a telescopic rod (29); an end of the telescopic rod (29) is hinged to a lower end of the swing rod; 所述限位槽(8)包括第一侧壁(5)和第二侧壁(10)，所述第一侧壁(5)由第一上部侧壁(3)和第一下部侧壁(7)构成，所述第二侧壁(10)由第二上部侧壁(9)和第二下部侧壁(11)构成；第一上部侧壁(3)竖直设置，第一下部侧壁(7)倾斜设置，第二上部侧壁(9)倾斜设置，第二下部侧壁(11)竖直设置，第一下部侧壁(7)和第二上部侧壁(9)平行；The limiting groove (8) comprises a first side wall (5) and a second side wall (10); the first side wall (5) is composed of a first upper side wall (3) and a first lower side wall (7); the second side wall (10) is composed of a second upper side wall (9) and a second lower side wall (11); the first upper side wall (3) is vertically arranged, the first lower side wall (7) is inclined, the second upper side wall (9) is inclined, the second lower side wall (11) is vertically arranged, and the first lower side wall (7) and the second upper side wall (9) are parallel; 本焊接机还包括固定架(13)，固定架(13)的上部固定安装有固定板(15)，固定板(15)上安装有第一升降装置(17)，第一升降装置(17)的伸缩端朝向下方的定子扭转结构，所述第一升降装置(17)的伸缩端上固定有安装架，安装架上安装有驱动气缸(26)和驱动环(27)，驱动环(27)上安装有焊枪(25)，驱动环(27)滑动设置在安装架上，所述驱动气缸(26)的活塞杆和所述驱动环(27)铰接；The welding machine also includes a fixed frame (13), a fixed plate (15) is fixedly mounted on the upper part of the fixed frame (13), a first lifting device (17) is mounted on the fixed plate (15), the telescopic end of the first lifting device (17) faces the stator torsion structure below, a mounting frame is fixed on the telescopic end of the first lifting device (17), a driving cylinder (26) and a driving ring (27) are mounted on the mounting frame, a welding gun (25) is mounted on the driving ring (27), the driving ring (27) is slidably arranged on the mounting frame, and a piston rod of the driving cylinder (26) and the driving ring (27) are hinged; 所述固定板(15)上还安装有第二升降装置(16)，第二升降装置(16)的升降端朝向下方，第二升降装置(16)的升降端上安装有支撑板(14)，支撑板(14)上安装有压块(18)，压块(18)的下表面和定子铁芯的上表面形状相同，压块(18)位于定子铁心的上方；A second lifting device (16) is also installed on the fixed plate (15), the lifting end of the second lifting device (16) faces downward, a support plate (14) is installed on the lifting end of the second lifting device (16), a pressing block (18) is installed on the support plate (14), the lower surface of the pressing block (18) and the upper surface of the stator core have the same shape, and the pressing block (18) is located above the stator core; 所述第一升降装置(17)包括驱动电机(22)，所述驱动电机(22)固定在所述固定板(15)上，所述固定板(15)上还旋转设置有丝杠(19)，所述驱动电机(22)通过传动带(23)和所述丝杠(19)相连；所述丝杠(19)上设置有升降块(20)，升降块(20)通过螺纹和所述丝杠(19)配合，所述升降块(20)上固定有连杆(21)，所述连杆(21)的下端固定有滑轨(24)，所述驱动环(27)设置在所述滑轨(24)内。The first lifting device (17) comprises a driving motor (22), the driving motor (22) being fixed on the fixing plate (15), a lead screw (19) being rotatably arranged on the fixing plate (15), the driving motor (22) being connected to the lead screw (19) via a transmission belt (23); a lifting block (20) being arranged on the lead screw (19), the lifting block (20) being engaged with the lead screw (19) via a thread, a connecting rod (21) being fixed on the lifting block (20), a slide rail (24) being fixed at the lower end of the connecting rod (21), and the driving ring (27) being arranged in the slide rail (24). 2.根据权利要求1所述的一种定子焊接机，其特征在于，所述伸缩装置(12)是伸缩气缸。2. A stator welding machine according to claim 1, characterized in that the telescopic device (12) is a telescopic cylinder.
CN202211334034.5A 2022-10-28 2022-10-28 A stator torsion mechanism and a stator welding machine Active CN115912814B (en)

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CN113732572A (en) * 2021-08-03 2021-12-03 江苏本格自动化科技有限公司 Motor stator skew welding machine

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CN210475118U (en) * 2019-05-05 2020-05-08 腾普(常州)精机有限公司 Iron core punching sheet twisting, oblique pressing and stacking tool
CN111682722B (en) * 2020-06-15 2021-10-15 常州金康精工机械股份有限公司 Twisted chute device of stator
CN115118097A (en) * 2022-07-20 2022-09-27 中车永济电机有限公司 A kind of general equipment for lamination of inclined slot stator iron core

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Publication number Priority date Publication date Assignee Title
CN113732572A (en) * 2021-08-03 2021-12-03 江苏本格自动化科技有限公司 Motor stator skew welding machine

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