CN113669402A - Method for plugging gas charging hole after gas spring is charged with nitrogen - Google Patents
Method for plugging gas charging hole after gas spring is charged with nitrogen Download PDFInfo
- Publication number
- CN113669402A CN113669402A CN202110955642.7A CN202110955642A CN113669402A CN 113669402 A CN113669402 A CN 113669402A CN 202110955642 A CN202110955642 A CN 202110955642A CN 113669402 A CN113669402 A CN 113669402A
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- CN
- China
- Prior art keywords
- gas spring
- nitrogen
- gas
- welding machine
- plugging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 112
- 239000007789 gas Substances 0.000 title claims abstract description 112
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000003466 welding Methods 0.000 claims abstract description 43
- 238000002360 preparation method Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a method for plugging an air charging hole after a gas spring is charged with nitrogen, which comprises the following steps: s1: preparing a gas spring, a plugging workpiece, a gas-filled joint and a welding machine in a first pre-preparation stage; s2: a second pre-preparation stage, namely placing the plugging workpiece into a first welding machine electrode, placing the gas spring into a second welding machine electrode and clamping the gas spring by using a cylinder; s3: filling gas, namely opening a first nitrogen electromagnetic valve, and filling the nitrogen into the gas spring through a gas filling hole until the nitrogen with corresponding pressure is filled into the gas spring; s4: the first welding machine electrode drives the plugging workpiece to move and contact with the gas spring, the plugging workpiece has certain pressure on the gas spring, and the welding machine releases current to enable the plugging workpiece to be welded with the gas spring; s5: and taking the workpiece, closing the first nitrogen electromagnetic valve and opening the second nitrogen electromagnetic valve, moving the first welding machine electrode after the pressure of the gas spring cavity disappears, and closing the second nitrogen electromagnetic valve after taking out the finished workpiece.
Description
Technical Field
The invention relates to the technical field of gas spring production, in particular to a method for plugging a gas charging hole after a gas spring is charged with nitrogen.
Background
Gas springs are a key component widely used in various industries and cannot be repaired, for example: in transportation, home, machinery, medical treatment and the like, the highest pressure required by the gas spring is 15Mpa, the inflation hole needs to be thoroughly blocked after inflation, and gas cannot be leaked, however, most of the currently adopted methods are that the gas is pressed into the inflation hole by steel balls or steel needles in an interference manner after the inflation is finished, the gas leakage ratio after blocking is large, the gas leakage ratio of the old process is up to 3 percent, so that the problem that the gas is slowly leaked mostly exists in the gas spring used in the market, and the gas spring loses effect after the gas leakage, so that the product function of the gas spring is lost or the gas spring cannot be continuously used.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a method for plugging an air charging hole after a gas spring is charged with nitrogen.
The technical scheme adopted by the invention for solving the technical problems is as follows: a method for plugging a gas charging hole after a gas spring is charged with nitrogen comprises the following steps:
s1: the method comprises the following steps that in the first pre-preparation stage, a gas spring, a plugging workpiece, a gas charging connector required when the gas spring is charged with nitrogen and a welding machine required when the gas spring is charged with nitrogen and a gas charging hole are plugged, wherein the welding machine is provided with a first welding machine electrode and a second welding machine electrode, one end of the gas spring is provided with the gas charging hole, and the gas charging connector is provided with a first nitrogen electromagnetic valve and a second nitrogen electromagnetic valve;
s2: a second pre-preparation stage, namely placing the plugging workpiece into a first welding machine electrode, placing the gas spring into a second welding machine electrode and clamping the gas spring by using a cylinder;
s3: filling gas, namely opening a first nitrogen electromagnetic valve, and filling the nitrogen into the gas spring through a gas filling hole until the nitrogen with corresponding pressure is filled into the gas spring;
s4: the first welding machine electrode drives the plugging workpiece to move and contact with the gas spring, the plugging workpiece has certain pressure on the gas spring, and the welding machine releases current to enable the plugging workpiece to be welded with the gas spring;
s5: and taking the workpiece, closing the first nitrogen electromagnetic valve and opening the second nitrogen electromagnetic valve, moving the first welding machine electrode after the pressure of the gas spring cavity disappears, and closing the second nitrogen electromagnetic valve after taking out the finished workpiece.
Preferably, in step S1, a sealing member is disposed inside the gas spring, and the gas spring is provided with a sealing ring.
Preferably, the plugging workpiece is welded at the position of an inflation hole of the gas spring.
Preferably, a three-way valve may be used instead of the first nitrogen solenoid valve and the second nitrogen solenoid valve in step S3.
Preferably, the first welding machine electrode is separated from the plugging workpiece when moving in the step S5.
Compared with the prior art, the invention has the beneficial effects that:
one end of the gas spring is provided with an inflation hole, a plugging workpiece is welded at the position of the inflation hole in the gas inflation process of the gas spring, the gas spring is separated from the plugging workpiece by moving the electrode of the first welding machine after welding is completed, the reject ratio of gas leakage of the gas spring can be greatly reduced, meanwhile, nitrogen is inert gas, no danger exists in the welding process, and the practicability is high.
Drawings
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a schematic structural view of the present invention;
fig. 3 is another schematic structural diagram of the present invention.
Reference numbers in the figures:
the gas spring comprises a gas spring 1, a plugging workpiece 2, an inflation hole 3, a second welding machine electrode 4, a sealing element 5, a first nitrogen electromagnetic valve 6, a second nitrogen electromagnetic valve 7, a first welding machine electrode 8 and a sealing ring 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-3, the present invention provides a method for plugging a gas filling hole after a gas spring is filled with nitrogen, the method comprising the steps of:
s1: preparing a welding machine which is required when an air spring 1, a plugging workpiece 2, an inflation joint required when the air spring 1 is inflated with nitrogen and an inflation hole is plugged after the air spring 1 is inflated with nitrogen in a first stage, wherein the welding machine is provided with a first welding machine electrode 8 and a second welding machine electrode 4, one end of the air spring 1 is provided with the inflation hole 3, and the inflation joint is provided with a first nitrogen electromagnetic valve 6 and a second nitrogen electromagnetic valve 7;
s2: a second stage is prepared in advance, the plugging workpiece 2 is placed into the first welding machine electrode 8, the gas spring 1 is placed into the second welding machine electrode 4, and the gas spring is clamped tightly by the aid of a cylinder;
s3: filling gas, namely opening a first nitrogen electromagnetic valve 6, and filling the nitrogen into the gas spring 1 through the gas filling hole 3 until the gas spring 1 is filled with the nitrogen with corresponding pressure;
s4: the gas filling hole 3 is sealed, the first welding machine electrode 4 drives the sealing workpiece 2 to move and contact with the gas spring 1, meanwhile, the sealing workpiece 2 has certain pressure on the gas spring 1, and the welding machine releases current to enable the sealing workpiece 2 to be welded with the gas spring 1;
s5: and taking out the workpiece, closing the first nitrogen electromagnetic valve 6 and opening the second nitrogen electromagnetic valve 7, moving the first welding machine electrode 8 after the pressure of the cavity of the gas spring 1 disappears, and closing the second nitrogen electromagnetic valve 7 after taking out the finished workpiece.
In the step S1, the sealing member 5 is disposed inside the gas spring 1, and the sealing ring 9 is disposed on the gas spring.
The plugging workpiece 2 is welded at the position of an inflation hole 3 of the gas spring 1.
A three-way valve may be used instead of the first nitrogen solenoid valve 6 and the second nitrogen solenoid valve 7 in the step S3.
In step S5, the first welder electrode 8 is separated from the plugging workpiece 2 when moving.
One end of the gas spring is provided with an inflation hole, a plugging workpiece is welded at the position of the inflation hole in the gas inflation process of the gas spring, the gas spring is separated from the plugging workpiece by moving the electrode of the first welding machine after welding is completed, the reject ratio of gas leakage of the gas spring can be greatly reduced, meanwhile, nitrogen is inert gas, no danger exists in the welding process, and the practicability is high.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. A method for plugging an air charging hole after a gas spring is charged with nitrogen is characterized by comprising the following steps:
s1: the method comprises the following steps that in the first pre-preparation stage, a gas spring, a plugging workpiece, a gas charging connector required when the gas spring is charged with nitrogen and a welding machine required when the gas spring is charged with nitrogen and a gas charging hole are plugged, wherein the welding machine is provided with a first welding machine electrode and a second welding machine electrode, one end of the gas spring is provided with the gas charging hole, and the gas charging connector is provided with a first nitrogen electromagnetic valve and a second nitrogen electromagnetic valve;
s2: a second pre-preparation stage, namely placing the plugging workpiece into a first welding machine electrode, placing the gas spring into a second welding machine electrode and clamping the gas spring by using a cylinder;
s3: filling gas, namely opening a first nitrogen electromagnetic valve, and filling the nitrogen into the gas spring through a gas filling hole until the nitrogen with corresponding pressure is filled into the gas spring;
s4: the first welding machine electrode drives the plugging workpiece to move and contact with the gas spring, the plugging workpiece has certain pressure on the gas spring, and the welding machine releases current to enable the plugging workpiece to be welded with the gas spring;
s5: and taking the workpiece, closing the first nitrogen electromagnetic valve and opening the second nitrogen electromagnetic valve, moving the first welding machine electrode after the pressure of the gas spring cavity disappears, and closing the second nitrogen electromagnetic valve after taking out the finished workpiece.
2. The method of claim 1, wherein the gas spring is provided with a sealing member inside and a sealing ring inside in step S1.
3. The method of claim 1, wherein the blocking piece is welded to the gas spring at the location of the gas filling hole.
4. The method for blocking off a gas filling hole after a gas spring is filled with nitrogen according to claim 1, characterized in that a three-way valve can be used to replace the first nitrogen solenoid valve and the second nitrogen solenoid valve in the step S3.
5. The method for plugging a gas filling hole after a gas spring is filled with nitrogen according to claim 1, wherein in said step S5, the first welding machine electrode is separated from the plugging workpiece while moving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110955642.7A CN113669402A (en) | 2021-08-19 | 2021-08-19 | Method for plugging gas charging hole after gas spring is charged with nitrogen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110955642.7A CN113669402A (en) | 2021-08-19 | 2021-08-19 | Method for plugging gas charging hole after gas spring is charged with nitrogen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113669402A true CN113669402A (en) | 2021-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110955642.7A Pending CN113669402A (en) | 2021-08-19 | 2021-08-19 | Method for plugging gas charging hole after gas spring is charged with nitrogen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113669402A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114406429A (en) * | 2022-01-10 | 2022-04-29 | 中国原子能科学研究院 | Resistance welding device and welding method for helium-filled hole blocking of cladding target tube |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1307507A (en) * | 1970-12-08 | 1973-02-21 | Westinghouse Electric Corp | Fabrication of nuclear fuel assemblies |
| US5674417A (en) * | 1993-10-28 | 1997-10-07 | Morton International, Inc. | Method and apparatus for welding shut a gas passage in vessels |
| TW452048U (en) * | 2000-08-30 | 2001-08-21 | Iron Force Ind Co Ltd | Sealing device for pressure gas bottle |
| CN2583489Y (en) * | 2002-11-21 | 2003-10-29 | 陈瑞麟 | Discarding type high pressure steel cylinder inflatable seat structure |
| CN102588734A (en) * | 2012-03-06 | 2012-07-18 | 姜将 | Manufacturing process of metal bottle with air-tight seal |
| CN104772573A (en) * | 2015-04-22 | 2015-07-15 | 沈阳航天新光集团有限公司 | Gas welding sealing process of 60 MPa ultrahigh-pressure cylinder |
| CN109071071A (en) * | 2016-03-08 | 2018-12-21 | 皮西基公司 | gas tank and its manufacturing method |
| CN112283417A (en) * | 2019-07-23 | 2021-01-29 | 深圳市火啦啦创新科技股份有限公司 | Inflation valve, inflation assembly and inflation device |
-
2021
- 2021-08-19 CN CN202110955642.7A patent/CN113669402A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1307507A (en) * | 1970-12-08 | 1973-02-21 | Westinghouse Electric Corp | Fabrication of nuclear fuel assemblies |
| US5674417A (en) * | 1993-10-28 | 1997-10-07 | Morton International, Inc. | Method and apparatus for welding shut a gas passage in vessels |
| TW452048U (en) * | 2000-08-30 | 2001-08-21 | Iron Force Ind Co Ltd | Sealing device for pressure gas bottle |
| CN2583489Y (en) * | 2002-11-21 | 2003-10-29 | 陈瑞麟 | Discarding type high pressure steel cylinder inflatable seat structure |
| CN102588734A (en) * | 2012-03-06 | 2012-07-18 | 姜将 | Manufacturing process of metal bottle with air-tight seal |
| CN104772573A (en) * | 2015-04-22 | 2015-07-15 | 沈阳航天新光集团有限公司 | Gas welding sealing process of 60 MPa ultrahigh-pressure cylinder |
| CN109071071A (en) * | 2016-03-08 | 2018-12-21 | 皮西基公司 | gas tank and its manufacturing method |
| CN112283417A (en) * | 2019-07-23 | 2021-01-29 | 深圳市火啦啦创新科技股份有限公司 | Inflation valve, inflation assembly and inflation device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114406429A (en) * | 2022-01-10 | 2022-04-29 | 中国原子能科学研究院 | Resistance welding device and welding method for helium-filled hole blocking of cladding target tube |
| CN114406429B (en) * | 2022-01-10 | 2023-03-10 | 中国原子能科学研究院 | Resistance welding device and welding method for helium-filled hole blocking of cladding target tube |
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| PB01 | Publication | ||
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Application publication date: 20211119 |