CN214978446U - Resistance spot welding device - Google Patents
Resistance spot welding device Download PDFInfo
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- CN214978446U CN214978446U CN202121478802.5U CN202121478802U CN214978446U CN 214978446 U CN214978446 U CN 214978446U CN 202121478802 U CN202121478802 U CN 202121478802U CN 214978446 U CN214978446 U CN 214978446U
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- spot welding
- limiting sleeve
- electrode
- upper electrode
- copper electrode
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Abstract
The utility model discloses a resistance spot welding device. The resistance spot welding device is provided with an upper electrode assembly and a lower electrode which are arranged up and down, wherein the upper electrode assembly comprises an upper electrode, the lower end of the upper electrode is connected with a copper electrode, a limiting sleeve is sleeved outside the lower end of the copper electrode, a spring is arranged between the limiting sleeve and the upper electrode, and the spring is sleeved outside the copper electrode; the lower end of the limiting sleeve is a plane end, and a through hole convenient for the copper electrode to extend out is formed in the center of the plane end. The spring in the utility model is convenient to control and adjust, so that the limiting sleeve protects the spot welding end before welding; in the welding process, the spot welding end extends out of the limiting sleeve to be welded; because the diameter of the outlet of the through hole is larger than the diameter of the small end part and smaller than the diameter of the large end part, the spot welding end at the lower end of the copper electrode is limited in extension, the depth of a spot welding indentation can be controlled, and the spot welding quality is improved; in the welding process, the lower end face of the limiting sleeve also presses the base material, the limiting sleeve increases the contact area of the upper motor assembly and the base material, and the problem that the base material can deform after being welded is solved.
Description
Technical Field
The utility model belongs to the technical field of resistance point device technique and specifically relates to a resistance spot welding device.
Background
Resistance spot welding belongs to one of pressure welding, and needs to bear pressure in the welding process. In the fusion process, the joint of the two base materials is always in the heating and pressing process, so that the base materials on the two sides of the joint are warped upwards, and the welded base materials are greatly deformed. When the substrate is a thin plate, the deformation is more pronounced.
In addition, the resistance spot welding machine cannot accurately control the depth of a welding indentation in the spot welding process, the indentation of a spot welding point is deep, and the spot welding quality is reduced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the resistance spot welding device overcomes the defects in the prior art, accurately controls the indentation depth of a spot welding point and prevents the deformation of a base material in the welding process.
The utility model provides a technical scheme that its technical problem adopted is: a resistance spot welding device is provided with an upper electrode assembly and a lower electrode which are arranged up and down, wherein the upper electrode assembly comprises an upper electrode, the lower end of the upper electrode is connected with a copper electrode, a limiting sleeve is sleeved outside the lower end of the copper electrode, a spring is arranged between the limiting sleeve and the upper electrode, and the spring is sleeved outside the copper electrode;
the lower end of the limiting sleeve is a plane end, and a through hole convenient for the copper electrode to extend out is formed in the center of the plane end.
Furthermore, the lower end of the copper electrode is a spot welding end, the spot welding end is provided with a large end part and a small end part, the large end part is connected with the copper electrode, and the large end part and the small end part are in transitional connection through an arc-shaped surface; the through hole is matched with the spot welding end, and the diameter of the outlet of the through hole is larger than the diameter of the small end part and smaller than the diameter of the large end part.
Furthermore, one end of the spring is fixed on the upper electrode, and the other end of the spring is fixed on the limiting sleeve.
The utility model has the advantages that: the utility model discloses simple structure has following advantage:
(1) the spring is arranged between the limiting sleeve and the upper electrode, the spring is sleeved outside the copper electrode, and the spring is convenient to control and adjust, so that the limiting sleeve protects the spot welding end before welding; in the welding process, the spot welding end extends out of the limiting sleeve to be welded;
(2) because the diameter of the outlet of the through hole is larger than the diameter of the small end part and smaller than the diameter of the large end part, when the spot welding end at the lower end of the copper electrode stretches out and is limited, the spot welding end can not stretch out continuously, so that the depth of a spot welding indentation can be controlled, and the spot welding quality is improved;
(3) in the welding process, the base material is also pressed by the lower end face of the limiting sleeve, the contact area of the upper motor assembly and the base material is enlarged by the limiting sleeve, and the problem that the base material is deformed after being welded is solved.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural diagram of the welding state of the present invention.
In the figure: 1. the electrode structure comprises an upper electrode, 2 copper electrodes, 3 springs, 4 limiting sleeves, 5 lower electrodes, 6 base materials and 7 through holes.
Detailed Description
The invention will now be described in further detail with reference to the drawings and preferred embodiments. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
The resistance spot welding device shown in fig. 1-2 is provided with an upper electrode assembly and a lower electrode 5 which are arranged up and down, wherein the upper electrode assembly comprises an upper electrode 1, the lower end of the upper electrode 1 is connected with a copper electrode 2, a limiting sleeve 4 is sleeved outside the lower end of the copper electrode 2, a spring 3 is arranged between the limiting sleeve 4 and the upper electrode 1, and the spring 3 is sleeved outside the copper electrode 2; the lower end of the limiting sleeve 4 is a plane end, and the center of the plane end is provided with a through hole 7 convenient for the copper electrode 2 to extend out.
The lower end of the copper electrode 2 is a spot welding end, the spot welding end is provided with a large end part and a small end part, the large end part is connected with the copper electrode 2, and the large end part and the small end part are in transitional connection through an arc-shaped surface; the through hole 7 is matched with the spot welding end, and the diameter of the outlet of the through hole 7 is larger than the diameter of the small end part and smaller than the diameter of the large end part. The diameter of the large end is equal to the diameter of the copper electrode 2.
One end of the spring 3 is fixed on the upper electrode 1, and the other end of the spring 3 is fixed on the limiting sleeve 4.
Before welding, under the action of the spring 3, the spot welding end at the lower end of the copper electrode 2 is arranged in the limiting sleeve 4, as shown in figure 1.
During welding, the upper electrode 1 is pressed downwards, the spring 3 is compressed, the spot welding end at the lower end of the copper electrode 2 extends out of the through hole 7 of the limiting sleeve 4 to act on the joint of the two substrates 6, the substrates 6 are also pressed by the lower end face of the limiting sleeve 4 at the moment, the contact area of the upper motor assembly and the substrates is enlarged by the limiting sleeve 4, and the problem that the substrates 6 can deform after being welded is solved, as shown in fig. 2.
Because the diameter of the outlet of the through hole 7 is larger than the diameter of the small end part and smaller than the diameter of the large end part, when the spot welding end at the lower end of the copper electrode 2 stretches out and is limited, the spot welding end can not stretch out continuously, so that the depth of a spot welding indentation can be controlled, and the spot welding quality is improved.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (3)
1. A resistance spot welding device characterized in that: the device comprises an upper electrode assembly and a lower electrode (5) which are arranged up and down, wherein the upper electrode assembly comprises an upper electrode (1), the lower end of the upper electrode (1) is connected with a copper electrode (2), a limiting sleeve (4) is sleeved outside the lower end of the copper electrode (2), a spring (3) is arranged between the limiting sleeve (4) and the upper electrode (1), and the spring (3) is sleeved outside the copper electrode (2);
the lower end of the limiting sleeve (4) is a plane end, and a through hole (7) convenient for the copper electrode (2) to extend out is formed in the center of the plane end.
2. The resistance spot welding apparatus according to claim 1, wherein: the lower end of the copper electrode (2) is a spot welding end, the spot welding end is provided with a large end part and a small end part, the large end part is connected with the copper electrode (2), and the large end part and the small end part are in transitional connection through an arc-shaped surface; the through hole (7) is matched with the spot welding end, and the diameter of the outlet of the through hole (7) is larger than the diameter of the small end part and smaller than the diameter of the large end part.
3. The resistance spot welding apparatus according to claim 1, wherein: one end of the spring (3) is fixed on the upper electrode (1), and the other end of the spring (3) is fixed on the limiting sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121478802.5U CN214978446U (en) | 2021-06-30 | 2021-06-30 | Resistance spot welding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121478802.5U CN214978446U (en) | 2021-06-30 | 2021-06-30 | Resistance spot welding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214978446U true CN214978446U (en) | 2021-12-03 |
Family
ID=79105378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121478802.5U Active CN214978446U (en) | 2021-06-30 | 2021-06-30 | Resistance spot welding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214978446U (en) |
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2021
- 2021-06-30 CN CN202121478802.5U patent/CN214978446U/en active Active
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