CN211072373U - Welding tool for motor core ventilation slot plate - Google Patents

Welding tool for motor core ventilation slot plate Download PDF

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Publication number
CN211072373U
CN211072373U CN201921306538.XU CN201921306538U CN211072373U CN 211072373 U CN211072373 U CN 211072373U CN 201921306538 U CN201921306538 U CN 201921306538U CN 211072373 U CN211072373 U CN 211072373U
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China
Prior art keywords
plate
ventilation
welding
upper plate
groove
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CN201921306538.XU
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Chinese (zh)
Inventor
周迪生
李进泽
车三宏
李华
邓方林
杨晔
于亮
高丽君
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Jiangsu CRRC Motor Co Ltd
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Jiangsu CRRC Motor Co Ltd
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Priority to CN201921306538.XU priority Critical patent/CN211072373U/en
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  • Manufacture Of Motors, Generators (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

The utility model provides a welding frock of motor core ventilation frid, it is used for welding ventilation frid and parting bead, the welding frock includes the hypoplastron, upper plate and layering, the hypoplastron is rectangular plate-like, the external shape matched with convex recess with the upper plate is seted up on the surface of hypoplastron, the card is equipped with ventilation frid and upper plate in proper order in the recess, the upper surface of ventilation frid is laminated with the lower surface of upper plate mutually, the upper plate be with the convex plate-like of shape assorted of recess, a plurality of constant head tanks are opened on the upper plate, the constant head tank is used for the parting bead on the location ventilation frid, the parting bead passes constant head tank and ventilation frid welded connection. The utility model also provides a welding method of the welding frock of motor core ventilation frid. The welding method of the motor core ventilation slot plate can be used for welding the ventilation slot plate with the ventilation slot sheet with the insulating layer, the ventilation slot sheet of the welded thin plate is not deformed, and the welding efficiency is high.

Description

Welding tool for motor core ventilation slot plate
Technical Field
The utility model belongs to a welding method of a ventilation slot plate of an iron core of a motor, in particular to a welding method of a ventilation slot plate of an iron core of a megawatt motor.
Background
The ventilation slot plate is one of the components of the motor iron core and is used for providing an airflow channel for heat dissipation of the motor iron core. The ventilation slot plate is formed by welding a ventilation slot sheet and a spacer bar, and the ventilation slot sheet is formed by punching a silicon steel sheet with an insulating layer on the surface through a die. Because the surface of the vent slot piece is provided with the insulating layer, the vent slot piece is not conductive during welding, and the welding has certain difficulty. The ventilation slot sheet is a thin plate with the thickness of 0.1-2mm, and is easy to deform during welding. In addition, a plurality of isolating strips are welded on the ventilating slot sheet, and rapid positioning is difficult when the isolating strips are welded. Therefore, the ventilation duct board needs to be welded by a special tool, and a cold welding machine with concentrated welding heat input and small heat affected zone is used for welding.
SUMMERY OF THE UTILITY MODEL
The utility model provides a welding method of a motor core ventilation frid, which can not deform the ventilation frid during welding and can quickly position the isolation strip.
According to one aspect of the utility model, a welding tool for a motor core ventilation slot plate is provided, which is used for welding ventilation slot sheets and isolating strips, the welding tool comprises a lower plate, an upper plate and a pressing strip,
the lower plate is rectangular plate-shaped, the surface of the lower plate is provided with an arc-shaped groove matched with the external shape of the upper plate, a ventilation groove piece and the upper plate are sequentially clamped in the groove, the upper surface of the ventilation groove piece is attached to the lower surface of the upper plate,
the upper plate is in a circular arc plate shape matched with the shape of the groove, a plurality of positioning grooves are formed in the upper plate and used for positioning the isolating strips on the ventilation groove plate, the isolating strips penetrate through the positioning grooves and are connected with the ventilation groove pieces in a welding mode,
the pressing strip is pressed on the isolating strip and is connected with the ventilating slot sheet in a welding mode through a cold welding machine.
In some embodiments, the vent groove sheet is formed by punching a silicon steel sheet with an insulating layer on the surface through a die.
In some embodiments, the vent slot sheet 4 is a 0.1-2mm thin sheet, and the vent slot sheet includes a body and three blades disposed on the body, the body is in the shape of an arc sheet, the three blades are disposed on an outer arc edge of the body, and the blades are in the shape of a rectangle.
In some embodiments, the number of the positioning grooves is three, the three positioning grooves correspond to three blades of the vent slot piece respectively, the main body part of the positioning groove is in a long strip shape, and notches are formed in the positioning groove and extend towards two sides of the positioning groove at intervals respectively.
In some embodiments, the upper plate has a thickness smaller than a thickness of the barrier ribs of the vent slot plate.
The utility model has the advantages that: the welding method of the motor core ventilation slot plate can be used for welding the ventilation slot plate with the ventilation slot sheet with the insulating layer, the ventilation slot sheet of the welded thin plate is not deformed, and the welding efficiency is high.
Drawings
Fig. 1 is a schematic structural view of a welding tool for a motor core vent groove plate according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a welding method of a welding tool for a motor core vent groove plate according to an embodiment of the present invention.
In the figure: 1. the structure comprises a lower plate, 2 parts of an upper plate, 3 parts of a pressing strip, 4 parts of a ventilation slot sheet and 5 parts of a separation strip.
Detailed Description
The invention will be further described with reference to the following specific embodiments and the accompanying drawings.
Fig. 1 and fig. 2 schematically show a welding tool for a motor core vent groove plate and a welding method thereof according to an embodiment of the present invention.
As shown in fig. 1 and 2, the welding tool for the motor core ventilation slot plate of the present invention includes a lower plate 1, an upper plate 2 and a pressing strip 3, which are used for welding and connecting the ventilation slot pieces 4 and the isolation strips 5.
A concave plane is milled on the lower plate 1, and the size of the concave plane can be just used for placing the ventilating slot pieces 4 of the ventilating slot plate and also can be just used for placing the upper plate 2. Specifically, the lower plate 1 has a rectangular plate shape. The surface of the lower plate 1 is provided with a circular arc groove 11 matched with the external shape of the upper plate 2. The ventilation slot sheet 4 is formed by punching a silicon steel sheet with an insulating layer on the surface through a die. The ventilating slot sheet 4 is a thin plate with the thickness of 0.1-2 mm. Specifically, the ventilation slot piece 4 includes the body and set up in three blade on the body, the body is the circular arc slice, and three blade sets up on the outer arc edge of body, and the blade is rectangular shape. The vent slot plate 4 is clamped in the groove 11. The upper plate 2 is in the shape of a circular arc plate matched with the shape of the groove 11. A plurality of positioning grooves 21 are formed in the upper plate 2, and the positioning grooves 21 are used for positioning the isolating bars 5 on the ventilation groove plate. In this embodiment, the positioning grooves 21 are provided in three. The three positioning grooves 21 correspond to the three blades of the vent slot pieces 4, respectively. The main body of the positioning slot 21 is a strip shape, and the positioning slot 21 has notches 211 extending towards two sides at intervals. The positioning groove 21 is used for positioning the position of a welding point during welding and facilitating welding by a welding gun. The thickness of the upper plate 2 is smaller than the thickness of the division bar 5 of the vent groove plate. The upper plate 2 is clamped in the groove 11, and the lower surface of the upper plate 2 is attached to the upper surface of the ventilation slot piece 4. The pressing strip 3 is a metal plate, and the pressing strip 3 is used when the isolating strip 5 is welded on the ventilation slot sheet 4, so that the electric conductivity is good and certain weight is achieved. The isolating bars 5 are welded on the ventilation slot sheets 4 through the layering 3 and penetrating through the positioning slots 21.
The utility model discloses a welding method of welding frock of motor core ventilation frid includes: the vent slot pieces 4 are placed in the grooves 11 of the lower plate 1, the upper plate 2 is pressed on the vent slot pieces 4, and the upper plate 2 is simultaneously placed in the grooves 11 of the lower plate 1. The spacer 5 is placed in the groove 21 in the upper plate 2. The pressing strip 3 is connected with a ground wire of a welding machine, then the pressing strip 3 is pressed on the isolating strip 5, and the isolating strip 5 and the ventilation groove piece 4 are welded together by using a cold welding machine. Cold welders have the requirement that the weld heat input be concentrated and the heat affected zone be small.
The above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims (5)

1. A welding tool for a ventilation slotted plate of a motor core is characterized by being used for welding a ventilation slotted sheet and a spacing bar, the welding tool comprises a lower plate, an upper plate and a pressing bar,
the lower plate is rectangular plate-shaped, the surface of the lower plate is provided with an arc-shaped groove matched with the external shape of the upper plate, a ventilation groove piece and the upper plate are sequentially clamped in the groove, the upper surface of the ventilation groove piece is attached to the lower surface of the upper plate,
the upper plate is in a circular arc plate shape matched with the shape of the groove, a plurality of positioning grooves are formed in the upper plate and used for positioning the isolating strips on the ventilation groove plate, the isolating strips penetrate through the positioning grooves and are connected with the ventilation groove pieces in a welding mode,
the pressing strip is pressed on the isolating strip and is connected with the ventilating slot sheet in a welding mode through a cold welding machine.
2. The tool for welding the ventilation slot plate of the motor core as claimed in claim 1, wherein the ventilation slot plate is formed by punching a silicon steel plate with an insulating layer on the surface through a die.
3. The welding tool for the motor core vent groove plate according to claim 1, wherein the vent groove piece (4) is a 0.1-2mm thin plate, the vent groove piece comprises a body and three blades arranged on the body, the body is in a shape of an arc sheet, the three blades are arranged on an outer arc edge of the body, and the blades are in a shape of a rectangle.
4. The tool for welding the ventilation slot plate of the motor core according to claim 3, wherein the number of the positioning slots is three, the three positioning slots correspond to three blades of the ventilation slot piece respectively, the main body part of each positioning slot is in a long strip shape, and notches are formed in the positioning slots in a spaced manner and extend towards two sides respectively.
5. The welding tool for the motor core ventilation slot plate as claimed in claim 1, wherein the thickness of the upper plate is smaller than the thickness of the spacer of the ventilation slot plate.
CN201921306538.XU 2019-08-13 2019-08-13 Welding tool for motor core ventilation slot plate Active CN211072373U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921306538.XU CN211072373U (en) 2019-08-13 2019-08-13 Welding tool for motor core ventilation slot plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921306538.XU CN211072373U (en) 2019-08-13 2019-08-13 Welding tool for motor core ventilation slot plate

Publications (1)

Publication Number Publication Date
CN211072373U true CN211072373U (en) 2020-07-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921306538.XU Active CN211072373U (en) 2019-08-13 2019-08-13 Welding tool for motor core ventilation slot plate

Country Status (1)

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CN (1) CN211072373U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110449810A (en) * 2019-08-13 2019-11-15 江苏中车电机有限公司 A kind of welding tooling and welding method of electric machine iron core ventilation channel plate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110449810A (en) * 2019-08-13 2019-11-15 江苏中车电机有限公司 A kind of welding tooling and welding method of electric machine iron core ventilation channel plate

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