CN216151422U

CN216151422U - Grounding piece butt-joint tool

Info

Publication number: CN216151422U
Application number: CN202122240506.8U
Authority: CN
Inventors: 黄格平
Original assignee: Foshan Powered Motors Manufacturing Co ltd
Current assignee: Foshan Powered Motors Manufacturing Co ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-04-01
Anticipated expiration: 2031-09-16

Abstract

The utility model discloses a butt-welding tool for a grounding piece, which comprises a mounting base, a stator core, the grounding piece, a positioning assembly and a butt-welding head, wherein the mounting base is provided with a first vertical wall and a second vertical wall; the grounding plate is provided with a plurality of convex hull structures used for being in point contact with the stator core. The utility model can be applied to a butt welding machine, and has the advantages of high welding speed, low production cost and simple structure.

Description

Grounding piece butt-joint tool

Technical Field

The utility model relates to the technical field of motor production equipment, in particular to a butt-welding tool for a grounding plate.

Background

The motor consists of a rotor and a stator, is a device for realizing the conversion between electric energy and mechanical energy, and mainly provides rotary mechanical energy through the rotor rotating under the action of a current magnetic field. In actual production, some motor product require to fix the grounding lug welded on motor stator core's side, because stator core in the production process will be handled through the spray paint, the varnished cloth can make stator core electric conductivity worsen, therefore the grounding lug welding mode commonly used in the trade is laser welding, punch the varnished cloth through laser, butt fusion grounding lug and stator core, not only work efficiency is low, welding speed is slow, laser-beam welding machine's price is higher moreover, can the manufacturing cost of greatly increased small-size enterprise.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of overcoming the defects in the prior art and provides a butt-welding tool for a grounding plate, which can be applied to a butt-welding machine and has the advantages of high welding speed, low production cost and simple structure.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a butt-welding tool for a grounding piece comprises a mounting base, a stator core, the grounding piece, a positioning assembly and a butt-welding head, wherein a first vertical wall and a second vertical wall are arranged on the mounting base; and the grounding sheet is provided with a plurality of convex hull structures used for being in point contact with the stator core.

As a further improvement of the above technical solution:

the locating component is a telescopic driving piece, a cylinder body of the telescopic driving piece is fixedly connected to the first vertical wall, and a telescopic rod of the telescopic driving piece can be switched between a clamping state and a non-clamping state through telescopic action.

And the second vertical wall is provided with a through hole for electrically connecting an external circuit with the stator core.

The grounding piece comprises a horizontal part and a vertical part, the convex hull structure is arranged on the bottom surface of the horizontal part, and the included angle between the horizontal part and the vertical part is 90-100 degrees.

The number of the convex hull structures is 3-5.

Compared with the prior art, the utility model has the advantages that:

the grounding plate butt-welding tool is arranged on a butt-welding machine through an installation base, when a grounding plate welding process is carried out, a stator iron core is abutted against a second vertical wall through a positioning assembly to realize the position fixation of the stator iron core, the enamel at the welding position on the stator iron core is polished before welding to eliminate the electricity isolation characteristic of the enamel, wherein the stator iron core is electrically connected with one electrode of the butt-welding machine, a butt-welding head is electrically connected with the other electrode of the butt-welding machine, the butt-welding head is used for abutting against the grounding plate and abutting against the grounding plate on the stator iron core, meanwhile, a convex hull structure used for being in point contact with the stator iron core is arranged on the grounding plate, when the butt-welding head carries out butt-welding, a communication circuit is formed among the butt-welding head, the grounding plate and the stator iron core, a large amount of current is concentrated at the convex hull mechanism, the contact position of the convex hull structure and the stator iron core generates high temperature to locally melt the grounding plate and the stator iron core, the welding head applies proper pressure to enable the two ends to be extruded and jointed, the grounding plate welding process is completed, the welding speed is high, and the production cost is low.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a side view of the present invention.

Fig. 3 is a side view of the grounding plate.

Fig. 4 is a schematic rear view structure diagram of the ground strip.

Illustration of the drawings:

1. mounting a base; 101. a first vertical wall; 102. a second vertical wall; 103. a through hole; 2. a stator core; 3. a ground plate; 301. a convex hull structure; 302. a horizontal portion; 303. a vertical portion; 4. a positioning assembly; 5. and (6) bumping the welding head.

Detailed Description

The utility model is described in further detail below with reference to the figures and specific examples.

As shown in fig. 1 to 4, the butt-welding tooling for the grounding plate of the embodiment includes a mounting base 1, a stator core 2, a grounding plate 3, a positioning assembly 4 and a butt-welding head 5, wherein the mounting base 1 is provided with a first vertical wall 101 and a second vertical wall 102, the positioning assembly 4 is fixedly connected to the first vertical wall 101 and is used for abutting the stator core 2 against the second vertical wall 102, and the butt-welding head 5 abuts against the grounding plate 3 and is used for abutting the grounding plate 3 against the stator core 2; the grounding plate 3 is provided with a plurality of convex hull structures 301 for point contact with the stator core 2. The grounding piece butt-welding tool is installed on a butt-welding machine through an installation base 1, when a grounding piece welding procedure is carried out, a stator core 2 is abutted against a second vertical wall 102 through a positioning component 4, the position fixing of the stator core 2 is realized, the enamel at the welding position on the stator core 2 is polished before welding, the electricity-isolating characteristic of the enamel is eliminated, wherein the stator core 2 is electrically connected with one electrode of the butt-welding machine, a butt-welding head 5 is electrically connected with the other electrode of the butt-welding machine, the butt-welding head 5 is used for abutting against a grounding piece 3 and abutting against the grounding piece 3 on the stator core 2, meanwhile, a convex hull structure 301 used for being in point contact with the stator core 2 is arranged on the grounding piece 3, when the butt-welding head 5 carries out the butt-welding, a communication circuit is formed among the butt-welding head 5, the grounding piece 3 and the stator core 2, a large amount of current is concentrated at the convex hull structure 301, and the contact position of the convex hull structure 301 and the stator core 2 generates high temperature, and the grounding plate 3 and the stator core 2 are locally melted, and the welding head 5 is touched to apply proper pressure to extrude and joint two ends of the stator core, so that the grounding plate welding process is completed, the welding speed is high, and the production cost is low. In this embodiment, the spot-weld machine is a conventional machine, and the structure and the working principle thereof are not described herein again.

As shown in fig. 2, it is preferable that the positioning unit 4 is a telescopic driving member, a cylinder of the telescopic driving member is fixedly connected to the first vertical wall 101, and a telescopic rod of the telescopic driving member is switchable between a clamped state in which it is in contact with the stator core 2 and an unclamped state in which it is not in contact with the stator core 2 by a telescopic operation. In this embodiment, the positioning assembly 4 is a telescopic driving member, and has the advantages of simple structure, easy assembly, good operation stability and long service life.

As shown in fig. 1, preferably, the second vertical wall 102 is provided with a through hole 103 for electrically connecting an external circuit with the stator core 2, and an electrode wire of the spot-weld machine can contact with the stator core 2 through the through hole 103, so that the stator core 2 is electrically connected with an electrode of the spot-weld machine.

As shown in fig. 3-4, preferably, the grounding plate 3 includes a horizontal portion 302 and a vertical portion 303, the convex hull structure 301 is disposed on the bottom surface of the horizontal portion 302, and the included angle between the horizontal portion 302 and the vertical portion 303 is 90-100 °.

Preferably, the number of convex hull structures 301 is 3-5. In this embodiment, the number of convex hull structures 301 is 4.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-described embodiments. Modifications and variations that may occur to those skilled in the art without departing from the spirit and scope of the utility model are to be considered as within the scope of the utility model.

Claims

1. The butt-welding tooling for the grounding plate is characterized by comprising a mounting base (1), a stator core (2), the grounding plate (3), a positioning assembly (4) and a butt-welding head (5), wherein a first vertical wall (101) and a second vertical wall (102) are arranged on the mounting base (1), the positioning assembly (4) is fixedly connected to the first vertical wall (101) and used for enabling the stator core (2) to abut against the second vertical wall (102), and the butt-welding head (5) abuts against the grounding plate (3) and used for enabling the grounding plate (3) to abut against the stator core (2); the grounding plate (3) is provided with a plurality of convex hull structures (301) which are used for being in point contact with the stator core (2).

2. The ground lug butt-welding tool according to claim 1, wherein the positioning assembly (4) is a telescopic driving piece, a cylinder body of the telescopic driving piece is fixedly connected to the first vertical wall (101), and a telescopic rod of the telescopic driving piece can be switched between a clamping state in which the telescopic rod abuts against the stator core (2) and a non-clamping state in which the telescopic rod does not abut against the stator core (2).

3. A butt-welding tool for a grounding plate according to claim 1, wherein a through hole (103) for electrically connecting an external circuit with the stator core (2) is formed in the second vertical wall (102).

4. A grounding plate butt-welding tool according to claim 1, wherein the grounding plate (3) comprises a horizontal portion (302) and a vertical portion (303), the convex hull structure (301) is arranged on the bottom surface of the horizontal portion (302), and the included angle between the horizontal portion (302) and the vertical portion (303) is 90-100 °.

5. A grounding plate butt-welding tool according to claim 1, wherein the number of the convex hull structures (301) is 3-5.