An energy storage welding machine for ring nuts

By introducing an air tank and pneumatic pipeline system into the energy storage welding machine, the problem of insufficient welding cylinder pressure caused by unstable external air source is solved, ensuring the stability of welding quality and weld strength, and realizing the reliability and consistency of the welding process.

CN224444835UActive Publication Date: 2026-07-03QINGDAO WUBEN INTELLIGENT EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO WUBEN INTELLIGENT EQUIP CO LTD
Filing Date
2025-07-31
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing energy storage welding machines rely on external air sources to drive the welding cylinder. When the external pipeline pressure is unstable, the welding cylinder pressure drops, which may cause insufficient electrode pressure, resulting in uneven weld strength or incomplete welds.

Method used

An energy storage welding machine system including an air tank and pneumatic pipelines was designed. When the external pipeline pressure is unstable, the system uses filters and pneumatic solenoid valves in the air tank and pneumatic pipelines to maintain a stable air pressure in the welding cylinder, thereby ensuring welding quality.

Benefits of technology

This effectively avoids insufficient electrode pressure caused by unstable external pipeline pressure, ensuring uniform weld strength and welding stability, and preventing the occurrence of incomplete welds.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application provides an energy storage welding machine for convex ring nuts, including an energy storage welding machine body, a welding integrated control box, a first arm disposed on the front end face of the energy storage welding machine body, a welding cylinder disposed on the end face of the first arm, and an air storage tank disposed on the energy storage welding machine body. The air inlet of the air storage tank is connected to an external air source, and the air outlet of the air storage tank is connected to a pneumatic pipeline, which is also connected to the welding cylinder. This utility model, by adding an air storage tank and its associated pneumatic pipeline, allows the gas in the air storage tank to be filtered through a first pipeline into a compressed air processor's filter when the external pipeline pressure is unstable. The gas then enters a second pipeline, and after being regulated by a pneumatic solenoid valve, is delivered to the welding cylinder through the second pipeline, thus maintaining a stable pressure in the welding cylinder.
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Description

Technical Field

[0001] This utility model belongs to the field of energy storage welding technology, and specifically relates to an energy storage welding machine for convex ring nuts. Background Technology

[0002] Energy storage welding machines utilize capacitors to store energy, which is then released at millisecond-level speeds through the joint resistance during welding. This energy is instantly converted into a large amount of resistance heat, rapidly melting the metal. Simultaneously, high pressure and plastic deformation work together to form the weld joint. An energy storage welding machine consists of a welding integrated control box, a welding cylinder, and upper and lower electrode mounting copper bases.

[0003] Existing energy storage welding machines rely on external air sources to directly drive the welding cylinder. When the external pipeline pressure is unstable, the welding cylinder pressure drops, resulting in insufficient electrode pressure, which may lead to uneven weld strength or incomplete welds.

[0004] Therefore, how to solve the defects in the above technical solutions has become one of the urgent problems to be solved in the field of energy storage welding technology. Utility Model Content

[0005] In view of the problems existing in the background art, the present invention provides an energy storage welding machine for a convex ring nut, comprising:

[0006] Mounting base;

[0007] The energy storage welding machine body is mounted on the mounting base;

[0008] The energy storage welding machine body also includes,

[0009] Welding integrated control box;

[0010] The first arm is located on the front end face of the energy storage welding machine body;

[0011] The welding cylinder is located on the end face of the first arm, away from the main body of the energy storage welding machine.

[0012] A transformer is located on one side of the first machine arm;

[0013] The gas storage tank is mounted on the main body of the energy storage welding machine.

[0014] Furthermore, the air inlet of the gas storage tank is connected to an external air source.

[0015] The outlet of the gas storage tank is connected to a pneumatic pipeline.

[0016] It is also connected to the welding cylinder via a pneumatic pipeline.

[0017] Optionally, the pneumatic piping includes a first conduit.

[0018] And it is connected to the air inlet of the compressed air processor through the first pipe.

[0019] The compressed air processor's outlet is connected to the second pipe.

[0020] Furthermore, the outlet of the second pipe is connected to the inlet of the welding cylinder.

[0021] Optionally, a gas circuit switch is installed on the first pipeline.

[0022] Furthermore, a pneumatic solenoid valve is installed on the second pipeline.

[0023] According to the claim, an energy storage welding machine for a convex ring nut is characterized in that,

[0024] The compressed air processor includes a filter and an oil mist lubricator connected to it.

[0025] Optionally, a first electrode is integrally formed with the bottom of the welding cylinder.

[0026] The welding cylinder is equipped with a connecting copper strip.

[0027] A connecting copper plate is provided on the side of the connecting copper strip away from the welding cylinder.

[0028] Optionally, the connecting copper plate is L-shaped and mounted on the second electrode.

[0029] Optionally, the first electrode and the second electrode are arranged opposite each other.

[0030] And the first electrode is located above the second electrode.

[0031] The second electrode is mounted on the second arm.

[0032] Optional, the filter includes a filter cup.

[0033] Furthermore, a filter cartridge housing is installed inside the filter cup and connected to it.

[0034] The filter element is integrated into the filter housing.

[0035] The filter cartridge housing has a snap-fit ​​mechanism for inserting a push-button.

[0036] And the snap-fit ​​slot body for engaging connection,

[0037] The snap-on buckle engages with the snap-on groove to make a snap-fit ​​connection.

[0038] Optionally, a stepped protrusion is provided on the top end face of the press buckle near the upper end, and the protrusion is used to engage with the groove opened at the upper end.

[0039] In summary, the beneficial effects of this utility model are:

[0040] This invention adds an air storage tank and its associated pneumatic pipeline. When the external pipeline pressure is unstable, the air circuit switch is activated, allowing the gas in the storage tank to pass through the first pipeline into the filter of the compressed air processor for filtration, and then into the second pipeline. After being regulated by a pneumatic solenoid valve, the gas is then delivered to the welding cylinder through the second pipeline, ensuring that the welding cylinder maintains a stable pressure. This prevents insufficient electrode pressure caused by unstable external pipeline pressure, which could lead to uneven weld strength or incomplete welds. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the energy storage welding machine for convex ring nuts according to the present invention;

[0042] Figure 2 This is a partial structural schematic diagram of an embodiment of an energy storage welding machine for a convex ring nut according to the present invention;

[0043] Figure 3 This is a schematic diagram of the compressed air processor structure of an embodiment of an energy storage welding machine for convex ring nuts according to the present invention;

[0044] Figure 4 This utility model Figure 3 Enlarged view of the structure at position A in the middle.

[0045] Figure label:

[0046] 1. Energy storage welding machine body; 2. Gas storage tank; 3. Welding integrated control box; 4. Welding cylinder; 5. First electrode; 6. Second electrode; 7. First arm; 8. Second arm; 9. Connecting copper strip; 10. Connecting copper plate; 11. Transformer;

[0047] 12. Pneumatic piping; 121. First pipeline; 122. Pneumatic circuit switch;

[0048] 123. Compressed air processor; 1231. Filter cup; 1232. Interface; 1233. Press-fit buckle; 1234. Oil mist lubricator; 1235. Snap-fit ​​groove; 1236. Filter element housing; 1237. Upper end;

[0049] 124. Second pipeline; 125. Pneumatic solenoid valve;

[0050] 13. Mounting bracket. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Although exemplary embodiments are disclosed in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to facilitate a more thorough understanding of the present utility model and to fully convey the concept of the present utility model to those skilled in the art.

[0052] In the description of this specification, the references to terms such as "certain embodiments," "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0053] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0054] like Figure 1-4 As shown, this embodiment provides an energy storage welding machine for convex ring nuts, including a mounting base 13 and an energy storage welding machine body 1 disposed on the mounting base 13. The energy storage welding machine body 1 also includes a welding integrated control box 3.

[0055] The first arm 7 is fixedly connected to the front end face of the energy storage welding machine body 1 by means of fastening screws, and the welding cylinder 4 is fixedly connected to the end face of the first arm 7 away from the energy storage welding machine body 1 by means of fastening bolts, and the bottom end of the welding cylinder 4 is provided with the first electrode 5 integrated with it.

[0056] In this embodiment, the welding cylinder 4 drives the first electrode to move toward the second electrode.

[0057] Furthermore, a transformer 11 is installed on one side of the first arm 7.

[0058] Furthermore, a connecting copper strip 9 is fixedly installed on the welding cylinder 4. The connecting copper strip serves as a flexible connection, thereby ensuring the efficient and stable operation of the welding cylinder when it is displaced.

[0059] Furthermore, a connecting copper plate 10 is provided on the side of the connecting copper strip 9 away from the welding cylinder 4. The connecting copper plate 10 is L-shaped and is fixedly installed on the second electrode 6 by welding, fastening screws and other fixed connection methods.

[0060] Furthermore, the first electrode 5 and the second electrode 6 are arranged opposite to each other, with the first electrode 5 located above the second electrode 6. The first electrode 5 and the second electrode 6 are used to release welding current.

[0061] Furthermore, the second electrode 6 is fixedly installed on the second arm 8 by fastening bolts, and the second arm 8 is arranged in a trapezoidal shape.

[0062] In practical applications, the energy storage welding machine is powered by a three-phase power supply, and the input power is processed by a transformer. By activating the welding cylinder, the first electrode 5 moves towards the second electrode. When the first and second electrodes release a large current in a very short time, the hydraulic cylinder presses down to apply pressure to the workpiece located between the first and second electrodes, causing the metal between the two sets of electrodes to melt rapidly, forming a weld nugget and achieving a strong weld.

[0063] Furthermore, an air storage tank 2 is fixedly installed on the top of the energy storage welding machine body 1, and the air inlet of the air storage tank 2 is connected to an external air source, and the air outlet of the air storage tank 2 is connected to the pneumatic pipeline 12, and is connected to the welding cylinder 4 through the pneumatic pipeline 12.

[0064] Furthermore, the pneumatic pipeline 12 includes a first pipe 121, which is connected to the air inlet of the compressed air processor 123. The air outlet of the compressed air processor 123 is connected to a second pipe 124, and the air outlet of the second pipe 124 is connected to the air inlet of the welding cylinder 4.

[0065] In this embodiment, by activating the gas storage tank 2, the gas in the gas storage tank 2 can be transported to the welding cylinder 4 through the pneumatic pipeline 12.

[0066] Furthermore, a pneumatic switch 122 is installed on the first pipe 121, and a pneumatic solenoid valve 125 is installed on the second pipe 124.

[0067] Furthermore, the compressed air processor 123 includes a filter and an oil mist lubricator connected thereto, and the oil mist lubricator is provided with an air outlet and connected to a second pipe.

[0068] In this embodiment, when the external pipeline pressure is unstable, the gas circuit switch 122 is activated, and the gas in the gas storage tank 2 enters the filter of the compressed air processor 123 through the first pipeline 121 for filtration, and then enters the second pipeline. After being regulated by the pneumatic solenoid valve, the gas is delivered to the welding cylinder 4 through the second pipeline, so that the welding cylinder maintains a stable pressure, so as to avoid the situation where the electrode pressure is insufficient due to the unstable external pipeline pressure, resulting in uneven weld strength or false weld.

[0069] Furthermore, in practical applications, the gas may contain solid impurities of 2-8mm. The vibrations generated during the operation of the energy storage welding machine exacerbate the impact and wear of these particles on the filter element, leading to filter damage. Regular maintenance or replacement is necessary, but traditional filter replacement is cumbersome and difficult. To solve these technical problems, please refer to [link to relevant documentation]. Figure 1-4 As shown, the filter includes an upper end with an air inlet connected to the first pipe 121. The filter also includes a filter cup 1231, and a filter element housing 1236 connected thereto is disposed inside the filter cup 1231. A filter element is integrally disposed inside the filter element housing 1236 for purification filtration.

[0070] The filter element housing 1236 has a snap-fit ​​groove 1235 for the snap-fit ​​buckle 1233 to extend into and engage. The snap-fit ​​buckle 1233 and the snap-fit ​​groove 1235 are used together to engage.

[0071] Furthermore, a stepped protruding end is provided on the top end face of the press buckle 1233 near the upper end 1237, and the protruding end is used to engage with the groove opened at the upper end for locking connection.

[0072] In this embodiment, since the protruding end and the groove at the upper end are correspondingly set, in actual application, when assembling it, it is only necessary to put the assembled filter element, which is integrally set with the filter element housing, into the filter cup 1231, and press down the pressing buckle 1233 of this utility model so that the pressing buckle 1233 enters the locking groove 1235. Then, the operator releases the pressing buckle 1233 and contacts the pressing force. At this time, the pressing buckle returns to its original state and engages with the locking groove. At the same time, the protruding end set at the top of the pressing buckle automatically engages with the locking groove for engagement.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not restrictive. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model do not depart from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An energy storage welder for a convex ring nut, characterized in that, include, Mounting base; The energy storage welding machine body is mounted on the mounting base; The energy storage welding machine body also includes, Welding integrated control box; The first arm is located on the front end face of the energy storage welding machine body; The welding cylinder is located on the end face of the first arm, away from the main body of the energy storage welding machine. A transformer is located on one side of the first arm; The gas storage tank is mounted on the main body of the energy storage welding machine. Furthermore, the air inlet of the gas storage tank is connected to an external air source. The outlet of the gas storage tank is connected to a pneumatic pipeline. It is also connected to the welding cylinder via a pneumatic pipeline.

2. The energy storage welding machine for a convex ring nut according to claim 1, characterized in that, Pneumatic piping includes a first pipe, And it is connected to the air inlet of the compressed air processor through the first pipe. The compressed air processor's outlet is connected to the second pipe. Furthermore, the outlet of the second pipe is connected to the inlet of the welding cylinder.

3. The energy storage welding machine for a convex ring nut according to claim 2, characterized in that, A gas circuit switch is installed on the first pipeline. Furthermore, a pneumatic solenoid valve is installed on the second pipeline. The compressed air processor includes a filter and an oil mist lubricator connected thereto.

4. The energy storage welding machine for a convex ring nut according to claim 1, characterized in that, The bottom of the welding cylinder is equipped with a first electrode that is integrally formed with it. The welding cylinder is equipped with a connecting copper strip. A connecting copper plate is provided on the side of the connecting copper strip away from the welding cylinder.

5. The energy storage welding machine for a convex ring nut according to claim 4, characterized in that, The connecting copper plate is L-shaped and mounted on the second electrode.

6. The energy storage welding machine for a convex ring nut according to claim 5, characterized in that, The first electrode and the second electrode are positioned opposite each other. And the first electrode is located above the second electrode. The second electrode is mounted on the second arm.

7. The energy storage welding machine for a convex ring nut according to claim 3, characterized in that, The filter includes a filter cup. Furthermore, a filter cartridge housing is installed inside the filter cup and connected to it. The filter element is integrated into the filter housing. The filter cartridge housing has a snap-fit ​​mechanism for inserting a push-button. And the snap-fit ​​slot body for engaging connection, The snap-on buckle engages with the snap-on groove to make a snap-fit ​​connection.

8. The energy storage welding machine for a convex ring nut according to claim 7, characterized in that, The top end face of the push-button buckle near the upper end is provided with a stepped protrusion, and the protrusion is used to engage with the groove opened at the upper end for locking connection.