CN205166163U - Projection welding electrode tip and spot welder - Google Patents
Projection welding electrode tip and spot welder Download PDFInfo
- Publication number
- CN205166163U CN205166163U CN201520864033.0U CN201520864033U CN205166163U CN 205166163 U CN205166163 U CN 205166163U CN 201520864033 U CN201520864033 U CN 201520864033U CN 205166163 U CN205166163 U CN 205166163U
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- electrode head
- nut box
- welding
- groove
- projection welding
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- 238000003466 welding Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 abstract description 8
- 238000012856 packing Methods 0.000 abstract description 6
- 238000009413 insulation Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- ZTXONRUJVYXVTJ-UHFFFAOYSA-N chromium copper Chemical compound [Cr][Cu][Cr] ZTXONRUJVYXVTJ-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Resistance Welding (AREA)
Abstract
The utility model provides a projection welding electrode tip and spot welder relates to welding technique. Wherein, the projection welding electrode tip includes: go up electrode tip and bottom electrode head, the top surface of bottom electrode head offers the standing groove that is used for placing nut box bottom portion packing ring, like this, in welding process, has dodged convex packing ring in the nut box well, can avoid the nut box in convex packing ring take place to interfere with the bottom electrode to the welding of guaranteeing the nut box and treating weld workpiece is firm reliable, has improved welding quality.
Description
Technical Field
The utility model relates to the field of welding technique, especially, relate to a projection welding electrode tip and spot welder.
Background
At present, in the process of manufacturing automobiles, in order to reduce the precision requirement of nuts on the welding process and meet the performance requirement of normal nuts, nut boxes are adopted to replace the nuts at a plurality of positions needing to use projection welding nuts.
In the prior art, the nut box generally comprises a box body and a nut located in the box body, and the nut can move in the box body in a limited manner, so that when the position of a mounting point is relatively inaccurate, the position of the nut can be adjusted through the movement of the nut in the box body, the production difficulty of a final assembly process is reduced, and the final assembly precision is improved. Meanwhile, in order to improve the compactness of the nut box and reduce the requirement on installation space, a gasket is arranged between the nut box and the nut, and the gasket extends out of the bottom of the nut box.
However, since the gasket is of a plastic construction and cannot conduct electricity, the electrode head for the projection nut has not met the welding requirements of the welded nut box.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect among the prior art, the utility model provides a projection welding electrode tip and spot welder can improve welding quality.
A first aspect of the present invention provides a projection welding electrode tip, including: the device comprises an upper electrode head and a lower electrode head, wherein the top surface of the lower electrode head is provided with a placing groove for placing a gasket at the bottom of a nut box.
Furthermore, a groove is formed in the lower electrode head below the placing groove, a positioning pin is arranged in the groove, and the positioning pin sequentially penetrates through the placing groove and the nut box and is embedded into the upper electrode head.
Further, an insulating sleeve is arranged between the groove and the positioning pin.
Furthermore, the bottom surface of the upper electrode head is provided with an accommodating groove for accommodating the positioning pin.
Further, the top of the upper electrode head and the bottom of the lower electrode head are provided with mounting parts for mounting on a spot welding machine.
Furthermore, the top of the upper electrode head and the bottom of the lower electrode head are both provided with connecting grooves for connecting wires.
Another aspect of the present invention is to provide a spot welding machine, including: a projection electrode head as claimed in any one of the preceding claims.
The utility model provides a projection welding electrode tip and spot welder, include: the welding fixture comprises an upper electrode head and a lower electrode head, wherein a placing groove used for placing a gasket at the bottom of a nut box is formed in the top surface of the lower electrode head, so that the convex gasket in the nut box is avoided well in the welding process, the convex gasket in the nut box can be prevented from interfering with a lower electrode, the box body of the nut box can be ensured to be in contact with the lower electrode head, the nut box is further ensured to be firmly and reliably welded with a workpiece to be welded, and the welding quality is improved.
Drawings
FIG. 1 is a schematic structural view of a first embodiment of a projection welding electrode head of the present invention;
FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic view of a first embodiment of a projection welding electrode head according to the present invention;
FIG. 4 is a schematic structural view of a second embodiment of a projection welding electrode head of the present invention;
FIG. 5 is a schematic view of a second embodiment of a projection welding electrode tip according to the present invention;
fig. 6 is a schematic sectional view taken along line B-B of fig. 5.
Wherein,
1-upper electrode head; 11-a holding tank; 2-a lower electrode head;
21-placing a groove; 22-a groove; 23-a locating pin;
24-an insulating sleeve; 3-a nut box; 31-a gasket;
32-a cartridge body; 4-a workpiece to be welded; 5-an installation part;
6-connecting groove.
Detailed Description
Example one
FIG. 1 is a schematic structural view of a first embodiment of a projection welding electrode head of the present invention; FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1; referring to fig. 1-2, an embodiment of the present invention provides a projection welding electrode head including: an upper electrode head 1 and a lower electrode head 2, wherein the top surface of the lower electrode head 2 is provided with a placing groove 21 for placing a gasket 31 at the bottom of the nut box 3.
FIG. 3 is a schematic view of a first embodiment of a projection welding electrode head according to the present invention; referring to fig. 3, specifically, the shape of the placing groove 21 may match the shape of the washer 31 at the bottom of the nut box 3, and the shape of the placing groove 21 is not particularly limited in this embodiment. When the nut box 3 and the workpiece 4 to be welded are welded, the top surface of the lower electrode tip 2 abuts against the box body 32 of the nut box 3, and the bottom surface of the upper electrode tip 1 abuts against the workpiece 4 to be welded.
The utility model provides a projection welding electrode tip, include: go up electrode tip 1 and lower electrode tip 2, the standing groove 21 that is used for placing nut box 3 bottom packing ring 31 is seted up to the top surface of lower electrode tip 2, like this, in welding process, avoid protruding packing ring 31 in nut box 3 well, take place to interfere with the bottom electrode in avoiding nut box 3 protruding packing ring 31, thereby guarantee that nut box 3's box body 32 and lower electrode tip 2 can contact, and then make nut box 3 with treat that the welding of welded object 4 is firm reliable, welding quality has been improved.
Example two
This embodiment will be described in addition to the projection welding electrode tip of the above embodiment.
FIG. 4 is a schematic structural view of a second embodiment of a projection welding electrode head of the present invention; FIG. 5 is a schematic view of a second embodiment of a projection welding electrode tip according to the present invention; FIG. 6 is a schematic cross-sectional view taken along line B-B of FIG. 5; referring to fig. 4-6, a groove 22 is further formed on the lower electrode head 2 below the placement groove 21, a positioning pin 23 is disposed in the groove 22, and the positioning pin 23 sequentially penetrates through the placement groove 21 and the nut box 3 and is embedded into the upper electrode head 1 to pre-position the nut box 3.
Further, an insulating sleeve 24 is arranged between the groove 22 and the positioning pin 23. Specifically, the insulation sleeve 24 is fixedly arranged in the groove 22, the positioning pin 23 is fixedly arranged in the insulation sleeve 24, and the insulation sleeve 24 prevents the positioning pin 23 from interfering with the lower electrode head 2, so that the positioning pin 23 is prevented from shunting. Preferably, the positioning pin 23 is not in contact with the bottom of the groove 22, so as to further avoid the interference of the positioning pin 23 with the lower electrode tip 2.
Further, the bottom surface of the upper electrode head 1 is provided with an accommodation groove 11 for accommodating the positioning pin 23. The receiving groove 11 may be a circular groove or a rectangular groove, and the shape of the receiving groove 11 is not particularly limited in this embodiment. The accommodating space of the accommodating groove 11 is larger than the part of the positioning pin 23 embedded in the upper electrode head 1, so as to avoid the part of the positioning pin 23 embedded in the upper electrode head 1, avoid the interference between the positioning pin 23 and the upper electrode head 1, and avoid the shunting of the positioning pin 23.
Further, the top of the upper electrode head 1 and the bottom of the lower electrode head 2 are provided with mounting portions 5 for mounting on a spot welder. Specifically, the upper electrode tip 1 and the lower electrode tip 2 are respectively mounted to the corresponding electrode mounts via the mounting portions 5, and are further mounted to the spot welder via the electrode mounts.
Furthermore, the top of the upper electrode head 1 is provided with a connecting groove 6 for connecting a wire, and the central line of the connecting groove 6 is superposed with the central line of the upper electrode head 1; the bottom of lower electrode tip 2 also is equipped with the spread groove 6 that is used for connecting the electric wire, and the central line of spread groove 6 coincides with the central line of lower electrode tip 2 to guarantee that the electric current that upper electrode tip 1 and lower electrode tip 2 passed through is even.
In the embodiment, when the nut box 3 needs to be welded on the workpiece 4 to be welded, the upper electrode head 1 and the lower electrode head 2 are both arranged on a spot welding machine; the nut box 3 is sleeved on the positioning pin 23, the gasket 31 at the bottom of the nut box 3 is placed in the placing groove 21, and the top surface of the lower electrode head 2 is abutted against the box body 32 of the nut box 3; the workpiece 4 to be welded is also fitted over the positioning pin 23 and placed above the nut box 3. When the nut box 3 is projection-welded, the upper electrode head 1 descends to be close to the lower electrode until the bottom surface of the upper electrode head 1 abuts against the workpiece 4 to be welded. At this time, the spot welder conducts current to complete welding of the nut box 3 and the workpiece 4 to be welded. After the welding is completed, the upper electrode head 1 moves upward and away from the lower electrode head 2, and then the workpiece is taken down.
In the foregoing embodiments, the upper electrode tip 1 and the lower electrode tip 2 are preferably made of CrCu (chromium copper) material.
Another aspect of the present invention is to provide a spot welding machine, including: a projection electrode head as in any one of the embodiments above.
The structure and function of the projection welding electrode tip are similar to those of the embodiments of the present invention, and are not described herein again.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (7)
1. A projection welding electrode tip, comprising: the device comprises an upper electrode head and a lower electrode head, wherein the top surface of the lower electrode head is provided with a placing groove for placing a gasket at the bottom of a nut box.
2. A projection welding electrode head according to claim 1, characterized in that a recess is provided in the lower electrode head below the placement groove, and a positioning pin is provided in the recess, which passes through the placement groove and the nut box in this order and is embedded in the upper electrode head.
3. A projection welding electrode head according to claim 2, characterized in that an insulating sleeve is provided between the groove and the locating pin.
4. A projection electrode head according to claim 2, wherein the bottom surface of the upper electrode head is provided with a receiving groove for receiving the positioning pin.
5. A projection welding electrode head according to any of claims 1 to 4, characterized in that the top of the upper electrode head and the bottom of the lower electrode head are provided with a mounting for mounting on a spot welder.
6. A projection welding electrode head according to any one of claims 1 to 4, characterized in that the top of the upper electrode head and the bottom of the lower electrode head are provided with attachment slots for attaching wires.
7. A spot welder, comprising: a projection electrode head as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520864033.0U CN205166163U (en) | 2015-11-02 | 2015-11-02 | Projection welding electrode tip and spot welder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520864033.0U CN205166163U (en) | 2015-11-02 | 2015-11-02 | Projection welding electrode tip and spot welder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205166163U true CN205166163U (en) | 2016-04-20 |
Family
ID=55730198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520864033.0U Active CN205166163U (en) | 2015-11-02 | 2015-11-02 | Projection welding electrode tip and spot welder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205166163U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109014543A (en) * | 2018-09-29 | 2018-12-18 | 天津七所高科技有限公司 | A kind of nut box projection welding system |
| CN115283805A (en) * | 2022-07-28 | 2022-11-04 | 上海空间推进研究所 | Resistance spot welding electrode and method for realizing simultaneous welding of multiple points on circumference of mesh ring |
-
2015
- 2015-11-02 CN CN201520864033.0U patent/CN205166163U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109014543A (en) * | 2018-09-29 | 2018-12-18 | 天津七所高科技有限公司 | A kind of nut box projection welding system |
| CN115283805A (en) * | 2022-07-28 | 2022-11-04 | 上海空间推进研究所 | Resistance spot welding electrode and method for realizing simultaneous welding of multiple points on circumference of mesh ring |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |