CN213794772U - Special electrode structure for welding railway safety relay silver contact - Google Patents
Special electrode structure for welding railway safety relay silver contact Download PDFInfo
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- CN213794772U CN213794772U CN202022622690.8U CN202022622690U CN213794772U CN 213794772 U CN213794772 U CN 213794772U CN 202022622690 U CN202022622690 U CN 202022622690U CN 213794772 U CN213794772 U CN 213794772U
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Abstract
A special electrode structure for welding a railway safety relay silver contact relates to the field of welding electrodes. The electrode comprises an upper electrode and a lower electrode, wherein the upper electrode is composed of an upper welding end, an upper electrode cavity and an upper connecting end, and the lower electrode is mainly composed of a lower welding end, a lower electrode cavity and a lower connecting end. The structure can be well applied to a medium frequency point welding machine, can complete the welding of silver contacts, guarantees the welding quality and meets the production requirements.
Description
Technical Field
The utility model relates to a welding electrode field, in particular to a special electrode structure for welding railway safety type relay silver contact.
Background
The electrodes are two terminals of power input and output on welding equipment, the electrodes are a necessary conductive material on a spot welding machine, pressure is applied to a welding piece through the upper electrode and the lower electrode, and welding is carried out through current. The electrode is widely applied to welding of various relay contacts, including welding of silver contacts of railway safety relays. In the conventional silver contact welding, red copper is generally used as an electrode, and an energy storage spot welding machine is used as equipment. With the development of the technology, the intermediate frequency spot welder has gradually replaced an energy storage spot welder, and due to the fact that red copper is low in shape design and hardness, the intermediate frequency spot welder cannot be used on the intermediate frequency spot welder, and welding of silver contacts cannot be achieved.
Disclosure of Invention
The utility model aims at providing a special electrode structure for welding railway safety type relay silver contact, which is not enough for the prior art.
The technical scheme adopted by the utility model is as follows: a special electrode structure for welding a railway safety relay silver contact is technically characterized by comprising an upper electrode and a lower electrode, wherein the upper electrode mainly comprises an upper welding end, an upper electrode cavity and an upper connecting end which are sequentially connected together, the upper connecting end is of a hollow structure, a first operation port for taking and placing a first electrode is arranged on the upper electrode cavity, the hollow structure of the upper connecting end is communicated with the upper electrode cavity, and cooling water is introduced into the communicated cavity to cool the upper welding end; the lower electrode mainly comprises a lower welding end, a lower electrode cavity and a lower connecting end which are connected together in sequence, the lower welding end is provided with a groove for fixing a weldment, a second operation opening for taking and placing a second electrode is formed in the lower electrode cavity, the lower connecting end is of a hollow structure, the hollow structure of the lower connecting end is communicated with the lower electrode cavity, and cooling water is introduced into the cavity of the communicated cavity and used for cooling the lower welding end.
In the above scheme, the upper welding end is cylindrical, and the diameter of the cylinder is not larger than the minimum size end of the weldment.
In the above scheme, the upper connecting end is in a circular truncated cone shape.
In the above scheme, the upper electrode cavity is cylindrical.
In the above scheme, the section of the first operation opening is rectangular.
In the scheme, the lower welding end is a cylinder without two opposite rectangular section surfaces, and a groove is formed in one cylindrical end.
In the above scheme, the lower connecting end is in a circular truncated cone shape.
In the above scheme, the lower electrode cavity is cylindrical.
In the above scheme, the section of the second operation opening is rectangular.
The utility model has the advantages that: the special electrode structure for welding the railway safety relay silver contact comprises an upper electrode and a lower electrode, wherein the upper electrode is composed of an upper welding end, an upper electrode cavity and an upper connecting end, and the lower electrode is mainly composed of a lower welding end, a lower electrode cavity and a lower connecting end. The structure can be well applied to a medium frequency point welding machine, can complete the welding of silver contacts, guarantees the welding quality and meets the production requirements.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of an upper electrode structure in an embodiment of the present invention; (ii) a
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
fig. 4 is a schematic view of the lower electrode structure in the embodiment of the present invention;
FIG. 5 is a front view of FIG. 4;
FIG. 6 is a sectional view taken along line A-A of FIG. 5;
FIG. 7 is a schematic view of a lower welding end face structure in an embodiment of the present invention;
the numbers in the figure illustrate the following: 1 upper electrode, 11 upper welding end, 12 upper electrode cavity, 13 upper connecting end, 14 first operation port, 2 lower electrode, 21 lower welding end, 22 lower electrode cavity, 23 lower connecting end, 24 second operation port and 25 groove.
Detailed Description
The above objects, features and advantages of the present invention will be more clearly understood and the present invention will be explained in more detail with reference to the accompanying drawings 1 to 7 and the detailed description thereof.
The special electrode structure for welding the silver contact of the railway safety relay comprises an upper electrode 1 and a lower electrode 2, wherein the upper electrode 1 is connected with one electrode rod of the intermediate frequency electric welding machine in an interference fit mode, and the lower electrode 2 is connected with the other electrode rod of the intermediate frequency electric welding machine in an interference fit mode.
The upper electrode 1 in this embodiment is formed by an upper bonding terminal 11, an upper electrode cavity 12, and an upper connecting terminal 13, and is an integrally formed structure. Wherein, the upper welding end 11 is cylindrical, and the diameter of the cylinder is not larger than the minimum dimension end of the weldment. The upper electrode cavity 12 is cylindrical, and is provided with a rectangular section as a first operation opening 14 for taking and placing the electrode, so that the first electrode can be mounted and dismounted. The upper connecting end 13 in this embodiment is in a truncated cone shape and has a hollow structure, and the upper welding end 11 is in contact with the chromium-zirconium-copper to be welded. The hollow structure of the upper connecting end 13 in this embodiment is communicated with the upper electrode cavity 12, and cooling water is introduced into the communicated cavity to cool the upper welding end 11.
The lower electrode 2 in this embodiment is mainly composed of a lower welding end 21, a lower electrode cavity 22 and a lower connecting end 23, and is an integrally formed structure. The shape of the lower welding end 21 is obtained by cutting a cylinder through two rectangles parallel to the axis, the two rectangular cut surfaces are oppositely arranged on two sides of the cylinder, and the shape is adopted to prevent current from being shunted. A groove 25 is formed in one end face of the cylindrical body, the groove 25 is matched with the silver contact in shape, and the silver contact can be installed in the groove 25. The lower electrode chamber 22 is cylindrical and has a rectangular cross section formed thereon as a second access opening 24 for accessing the second electrode. The lower connecting end 23 is in a round table shape and is of a hollow structure, the hollow structure of the lower connecting end 23 is communicated with the lower electrode cavity 22, and cooling water is introduced into the communicated cavity and used for cooling the lower welding end 23.
The electrode in this embodiment can accomplish the welding of silver contact and copper sheet, and the theory of operation is:
a cylindrical silver contact with the length of 4.5mm and the diameter of 1.4mm is installed in a groove of the lower welding end through a conveying device, a copper sheet with the thickness of 0.37mm is placed on the silver contact, and the upper surface of the copper sheet is in contact with the upper welding end. Pressurizing to make the two workpieces closely contact, then electrifying, melting the contact part of the workpieces under the action of resistance heat, cooling to form a welding spot, and finishing the welding process.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A special electrode structure for welding a railway safety relay silver contact is characterized by comprising an upper electrode and a lower electrode, wherein the upper electrode mainly comprises an upper welding end, an upper electrode cavity and an upper connecting end which are sequentially connected together; the lower electrode mainly comprises a lower welding end, a lower electrode cavity and a lower connecting end which are connected together in sequence, the lower welding end is provided with a groove for fixing a weldment, a second operation opening for taking and placing a second electrode is formed in the lower electrode cavity, the lower connecting end is of a hollow structure, the hollow structure of the lower connecting end is communicated with the lower electrode cavity, and cooling water is introduced into the cavity of the communicated cavity and used for cooling the lower welding end.
2. The special electrode structure for welding the silver contact of the railway safety relay as claimed in claim 1, wherein the upper welding end is cylindrical, and the diameter of the cylinder is not larger than the minimum size end of the weldment.
3. The special electrode structure for welding the silver contact of the railway safety relay as claimed in claim 1 or 2, wherein the upper connecting end is in a truncated cone shape.
4. The special electrode structure for welding the silver contact of the railway safety relay as claimed in claim 3, wherein the upper electrode cavity is cylindrical.
5. The special electrode structure for welding the silver contact of the railway safety relay, as recited in claim 4, wherein the section of the first operation opening is rectangular.
6. The special electrode structure for welding the silver contact of the railway safety relay as claimed in claim 1, wherein the lower welding end is in the shape of a cylinder with two opposite rectangular cross sections removed, and one end of the cylinder is provided with a groove.
7. The special electrode structure for welding the silver contact of the railway safety relay as claimed in claim 1 or 6, wherein the lower connecting end is in a truncated cone shape.
8. The special electrode structure for welding the silver contact of the railway safety relay as claimed in claim 7, wherein the lower electrode cavity is cylindrical.
9. The special electrode structure for welding the silver contact of the railway safety relay as claimed in claim 8, wherein the section of the second operation opening is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022622690.8U CN213794772U (en) | 2020-11-13 | 2020-11-13 | Special electrode structure for welding railway safety relay silver contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022622690.8U CN213794772U (en) | 2020-11-13 | 2020-11-13 | Special electrode structure for welding railway safety relay silver contact |
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| CN213794772U true CN213794772U (en) | 2021-07-27 |
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| CN202022622690.8U Active CN213794772U (en) | 2020-11-13 | 2020-11-13 | Special electrode structure for welding railway safety relay silver contact |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113909662A (en) * | 2021-11-04 | 2022-01-11 | 苏州科伦特电源科技有限公司 | Method for realizing copper-silver contact welding |
-
2020
- 2020-11-13 CN CN202022622690.8U patent/CN213794772U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113909662A (en) * | 2021-11-04 | 2022-01-11 | 苏州科伦特电源科技有限公司 | Method for realizing copper-silver contact welding |
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