CN110340576A - Nitrogen charging device and its control method for welding - Google Patents
Nitrogen charging device and its control method for welding Download PDFInfo
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- CN110340576A CN110340576A CN201910634605.9A CN201910634605A CN110340576A CN 110340576 A CN110340576 A CN 110340576A CN 201910634605 A CN201910634605 A CN 201910634605A CN 110340576 A CN110340576 A CN 110340576A
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- nitrogen charging
- nitrogen
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- time relay
- welding
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
- Resistance Welding (AREA)
Abstract
The present invention provides a kind of nitrogen charging device and its control method for welding, the nitrogen charging device for being used to weld includes: nitrogen charging tooling and monitoring assembly；The nitrogen charging tooling is connected with valve to be filled, and nitrogen is filled with valve to be filled；Monitoring assembly is connected with the nitrogen charging tooling by nitrogen tube, and the monitoring assembly presets single nitrogen charging time and/or interval nitrogen charging time, is controlled according to the single nitrogen charging time and/or interval nitrogen charging time the valve connection device.The present invention can effectively improve production efficiency, realize the automated production of nitrogen charging process, reduce human cost.
Description
Technical field
The present invention relates to air-conditioning duct welding technology field, in particular to a kind of nitrogen charging device for welding and
Its control method.
Background technique
With being widely used for split air conditioner, needed before copper pipe welding to the pre- inflated with nitrogen of copper pipe when producing outer machine,
Prevent air from aoxidizing at high temperature with copper pipe.
Currently used nitrogen charging mode is that employee with nitrogen tube carries out nitrogen charging to large and small valve.But this mode has following hidden
Suffer from: firstly, nitrogen pressure is uncontrollable, it can also nitrogen charging when air pressure is undesirable.Secondly, if nitrogen charging and inflated with nitrogen time are not
Controllably (it is required that 3S or more), it is practical with employee's control, deposit quality hidden danger.Finally, respectively to large and small valve nitrogen charging, low efficiency.
Summary of the invention
Problems solved by the invention, which is to provide one kind, can be improved nitrogen charging efficiency, prevent nitrogen charging substandard product from flowing into next
The nitrogen charging device of process.To solve the above problems, the present invention provides a kind of nitrogen charging device for welding, comprising:
Nitrogen charging tooling, the nitrogen charging tooling are connected with valve to be filled, and nitrogen is filled with valve to be filled；
Monitoring assembly is connected with the nitrogen charging tooling by nitrogen tube, the monitoring assembly to the single nitrogen charging time and/or
Interval the nitrogen charging time preset, and according to the single nitrogen charging time and/or interval the nitrogen charging time to the nitrogen charging tooling into
Row control.
The present invention is conducive to realize nitrogen charging work by carrying out self-clocking to single nitrogen charging time and interval nitrogen charging time respectively
The automation of sequence.
Further, the monitoring assembly includes:
First time relay is monitored the single nitrogen charging time；
Second time relay is monitored the interval nitrogen charging time.
Further, the nitrogen charging time reaches the default nitrogen charging time of the first time relay, terminates nitrogen charging, and described the
The power-off of one time relay；Second time relay starts after single nitrogen charging, reaches second time relay
The preset interval nitrogen charging time of device, the power-off of second time relay.
Single nitrogen charging time and interval nitrogen charging time are carried out certainly according to predetermined order respectively using different time relay
Dynamic timing, improves the degree of automation of production.
Further, the monitoring assembly further include: counter, according to the number of starts of the first time relay,
Nitrogen charging number is counted.It is counted by counter, the filling number of nitrogen can be inquired, carry out school in conjunction with daily production number
Core prevents artificial loophole.
Further, the nitrogen charging tooling includes: valve connection device, the valve connection device include: air inlet pipe and
At least one installation hole location, the installation hole location connect with air inlet pipe.
Valve connection device, which is conducive to realize, carries out nitrogen charging to nitrogen charging valve to multiple simultaneously, can be obviously improved production effect
Rate.
Further, the installation hole location includes: positioning region and interconnecting piece；The positioning region and the coaxial phase of the interconnecting piece
Connect, and the cross-sectional area of the interconnecting piece is greater than the cross-sectional area of the positioning region.
Nitrogen charging valve is connected with the interconnecting piece of the installation hole location, and is determined by the positioning region of the installation hole location
Position.
Further, when the installation hole location is multiple, the cross-sectional area of the positioning region of multiple installation hole locations is different,
And/or the length of interconnecting piece is different.
It is different, it can be achieved that valve to be filled to different size by positioning region and/or interconnecting piece that multiple installation hole locations are arranged
Nitrogen charging is carried out, the versatility of nitrogen charging device is improved.
Further, the nitrogen charging tooling further include: nitrogen charging control valve is arranged in the nitrogen tube or valve connects
On device, to control the on-off of Nitrogen source gases.
Further, the nitrogen charging tooling further include: start button is arranged in the nitrogen charging tooling, and the starting is pressed
Button is electrical connected with the monitor component, and the start button can trigger the on and off of nitrogen charging control valve.
Further, the monitoring assembly further include: pressure sensor is monitored the gas pressure in nitrogen tube,
Ensure the gas pressure in nitrogen tube in pre-set pressure range.The setting of pressure sensor is conducive to control nitrogen charging operation in pipe
Interior pressure carries out in the case where being suitble to.
Further, the monitoring assembly includes: alarm, and the monitoring data of the monitoring assembly exceed preset range,
The alarm starting, alarms；And/or the gas pressure in the nitrogen tube is in pre-set pressure range, the report
Alert device starting, alarms.Alarm is conducive to be monitored nitrogen charging process, and carries out emergency processing.
Further, the pre-set pressure range is 0.12-0.15Mpa.
Further, gasket is equipped with inside the interconnecting piece.
The present invention also provides a kind of control methods of nitrogen charging device for welding, after starting nitrogen charging tooling, monitoring assembly
Acquisition data are monitored according to preset single nitrogen charging time and/or interval nitrogen charging time, pass through the control to nitrogen charging tooling
System, control nitrogen are filled with.
Further, comprising:
Step a: pressing the start button that battery charger is loaded onto, and first time relay starts timing；
Step b: first time relay reaches default nitrogen charging time, the power-off of first time relay, while the second time
Relay starts timing；
C: the second time relay of step reaches the interval nitrogen charging time, and second time relay resets zero, at the first time
Relay restarting.
Further, further includes: step d: if first time relay does not restart in step c, alarming, and close
Arrhea waterline.
Further, further includes: step e: after each first time relay power-off, counter is to first time relay
Number of run carry out accumulated counts.
Further, in the step c further include: second time relay starting when, start assembly line, by it is next to
The outer machine of nitrogen charging drives to designated position, and the outer machine to nitrogen charging is connected with nitrogen charging tooling.
Further, first time relay starts timing in the step a, and start button display lamp is opened；The step
In rapid b after the power-off of first time relay, start button display lamp is closed.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the embodiment of the present invention for the nitrogen charging device of welding；
Fig. 2 is the structural schematic diagram of nitrogen charging tooling in Fig. 1；
Fig. 3 is the structural schematic diagram of monitoring assembly in Fig. 1.
Description of symbols:
1- nitrogen charging tooling；
11- air inlet pipe；
12- installs hole location；
The positioning region 121-；
122- interconnecting piece；
13- gasket；
2- monitoring assembly；
21- first time relay；
Second time relay of 22-；
23- counter；
24- alarm；
25- pressure sensor；
3- valve to be filled；
4- nitrogen tube；
The outer machine of 5-；
6- assembly line.
Specific embodiment
In the manufacture of air conditioner, needed before copper pipe welding to the pre- inflated with nitrogen of copper pipe when producing outer machine, prevent air and
Copper pipe aoxidizes at high temperature.The prior art also needs manually to carry out nitrogen charging operation, and this mode can bring following hidden danger: firstly,
Nitrogen pressure is uncontrollable, can also nitrogen charging when air pressure is undesirable.Secondly, if nitrogen charging and inflated with nitrogen time uncontrollable (are wanted
Seek 3S or more), it is practical with employee's control, deposit quality hidden danger.Finally, manual operation is respectively to large and small valve nitrogen charging, production efficiency is low
Under.Accordingly, it is desirable to provide a kind of nitrogen charging device and its control method for welding that can effectively improve production efficiency.
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.
In first illustrative examples of the invention, a kind of nitrogen charging device for welding is provided, the present invention is real
It applies in example, for being air-conditioner outdoor unit to fill device, but not limited to this.Fig. 1 is nitrogen charging of the embodiment of the present invention for welding
The structural schematic diagram of device.As shown in Figure 1, including: nitrogen charging tooling 1 and monitoring assembly 2 in the nitrogen charging device for welding.
Nitrogen is divided into single channel/multichannel and is filled with air conditioner external 5 by nitrogen charging tooling 1；For convenient for operation, it is preferable that start button is set to
In nitrogen charging tooling 1, start button is electrical connected with the monitor component 2；Nitrogen blanketing valve or monitoring can also be arranged in start button
On component.Monitoring assembly 2 is connected with the nitrogen charging tooling 1 by nitrogen tube 4, and the start button, the monitoring assembly 2 are pressed
The nitrogen charging tooling 1 is controlled；The monitoring assembly 2 presets single nitrogen charging time and interval nitrogen charging time, when
Obtained single nitrogen charging time and interval nitrogen charging time are monitored beyond preset range, carries out alarm.
Fig. 2 is the structural schematic diagram of nitrogen charging tooling in Fig. 1.As shown in Fig. 2, nitrogen charging tooling 1 include: valve connection device and
Nitrogen charging control valve (not shown).Wherein about valve connection device, the specific valve for providing the following two kinds form connects dress
It sets:
Form one: valve connection device includes: air inlet pipe 11 and an installation hole location 12, installs hole location 12 and air inlet pipe 11
It connects.It can be the axis and installation hole location 12 of air inlet pipe 11 about the positional relationship of air inlet pipe 11 and installation hole location 12
Axis perpendicular, or the axis of air inlet pipe 11 and the axis of installation hole location 12 coincide.It is specific about installation hole location 12
Be described as follows: installation hole location 12 includes: positioning region 121 and interconnecting piece 122；The positioning region 121 and the interconnecting piece 122 are coaxial
It is connected, the position that positioning region 121 is connected with interconnecting piece 122 is a shoulder, i.e., the cross-sectional area of the described interconnecting piece 122 is greater than described
The cross-sectional area of positioning region 121.
Form two: valve connection device includes: air inlet pipe 11 and multiple installation hole locations 12, and multiple installation hole locations 12
It connects with the air inlet pipe 11, nitrogen tube 4 is connected with the air inlet pipe 11, what needs to be explained here is that air inlet pipe 11 can also
Directly to select nitrogen tube 4.For the versatility for improving nitrogen charging device, the cross-sectional area of the positioning region of multiple installation hole locations is set not
Together and/or the length of interconnecting piece is different, to realize that the valve to be filled to different size carries out nitrogen charging.In each installation hole location 12
The cross-sectional area of interconnecting piece 122 and the length of positioning region 121 can be adjusted according to the actual application, not do specific limit
It is fixed.
It can choose ground, described when connecting wait fill valve 3 with the installation hole location 12, the interconnecting piece for installing hole location 12
Inside 122, the junction of interconnecting piece 122 and positioning region 121 installs gasket 13 additional, and gasket 13 is stainless steel material, for preventing valve
Door attachment device with when filling valve 3 and connecting inside be worn, to increase service life.
Nitrogen charging control valve is arranged in the nitrogen tube 4 or on valve connection device, and nitrogen charging control valve is solenoid valve
Door, the opening when powering on, when power-off, close, to control effective on-off of Nitrogen source gases, play it is energy saving, avoid waste from making
With.
In a specific embodiment, the nitrogen charging tooling 1 of settable two valve 3 to be filled is provided, specifically, two
Small one and large one specification of valve 3 to be filled is different, and two valves 3 to be filled are connect with the installation hole location 12 of corresponding specification respectively, two to
It is different to fill the cross-sectional area of interconnecting piece 122 and the length of positioning region 121 in the installation hole location 12 of the corresponding installation of valve 3.When
Start button is clicked, after the nitrogen charging device for welding powers on, the electromagnetic coil of nitrogen charging control valve is powered on, and nitrogen charging valve is beaten
It opens, executes inflated with nitrogen operation.
Wherein, monitoring assembly 2 includes: first time relay 21, second time relay 22, counter 23, pressure biography
Sensor 25 and alarm 24.Above-mentioned device is described in detail individually below:
First time relay 21 is monitored the single nitrogen charging time；The nitrogen charging time reaches the first time relay
21 default nitrogen charging time terminates nitrogen charging.First time relay 21 starts timing, and start button display lamp is opened；Described
The power-off of one time relay 21, start button display lamp are closed.It is preferred that the single nitrogen charging time is greater than 3s, to guarantee that the nitrogen charging time exists
3s or more.
Second time relay 22 is monitored the interval nitrogen charging time；The first time relay 21 powers off same
Second time relay 22 described in Shi Qidong, reaches the preset interval nitrogen charging time of second time relay 22, when first
Between relay 21 start, second time relay 22 power-off.Linear velocity sets the monitoring of second time relay when based on production
It is spaced the nitrogen charging time, is 13s preferably by the nitrogen charging time.
Counter 23 counts nitrogen charging number according to the number of starts of the first time relay 21.Pass through meter
The number counting of device 23 can also inquire filling number and combine production number daily, and worker's loophole is avoided to occur.
Alarm 24 is primarily adapted for two kinds using situation.First, the monitoring data of the monitoring assembly 2 exceed default model
Enclose, if that is, second time relay, 22 timing to a productive temp when, be not actuated for inflated with nitrogen operation yet, that is,
Next reaches specified nitrogen charging position not after the completion of Shang Yitai equipment nitrogen charging after fill device, and the alarm 24 starts, and carries out
Alarm omits nitrogen charging to avoid equipment.
Second, the gas pressure in the nitrogen tube 5, not in pre-set pressure range, the alarm 24 starts, carry out
Alarm, it is ensured that start nitrogen charging when nitrogen pressure is normal, guarantee the safety of production.
Pressure sensor 25 is monitored the gas pressure in nitrogen tube 5, it is ensured that the gas pressure in nitrogen tube 5 exists
In pre-set pressure range.The pre-set pressure range is 0.12-0.15Mpa.When pressure is less than 0.12Mpa, alarm is carried out
Alarm.
In second illustrative examples of the invention, provide a kind of based on being provided in first embodiment for welding
The control method of the nitrogen charging device connect, comprising: after starting valve connection device, monitoring assembly is according to pre- unsure evidence to acquisition data
It is monitored, by the control to valve connection device, controls nitrogen and be filled with.Specifically, including the following steps:
Step a: pressing the start button that battery charger is loaded onto, and first time relay starts timing, start button display lamp
It opens.
Step b: first time relay reaches the default nitrogen charging time, and first time relay powers off, start button is shown
Lamp is closed, while second time relay starts timing.After each first time relay power-off, counter to first time after
The number of run of electric appliance carries out accumulated counts.
C: the second time relay of step reaches the interval nitrogen charging time, and second time relay resets zero, at the first time
Relay restarting.In the starting of second time relay, start assembly line, next air conditioner external to nitrogen charging is driven
To designated position, and the air conditioner external to nitrogen charging is connected with valve connection device.
Step d: it if first time relay does not restart in step c, alarms, and shuts down assembly line.
In actual condition, air conditioner external 5 is transmitted by assembly line 6, valve connection device 1 and 5 phase of air conditioner external
Lian Hou, battery charger, which is loaded onto, can be set start button, and by lower button, first time relay 21 starts timing, when first after 3s
Between relay 21 power off, nitrogen charging terminates, and nitrogen valve is closed.23 simultaneous display "+1 " of counter, while second time relay
22 beginning productive temps xx seconds of timing one linear velocity of production line (be specifically subject to).Opening for setting is loaded onto when pressing battery charger
Dynamic button, second time relay 22 is reset to " 0 " (stop calendar scheduling and wait for next timing) immediately, if second time relay 22
When timing is to a productive temp, it is not actuated for inflated with nitrogen operation yet, alarm 24 is alarmed immediately, and linkage shuts down assembly line
6 are checked.It is next to nitrogen charging that those skilled in the art are to be understood that similar problems may not be transmitted due to assembly line 6
The reasons such as air conditioner external 5 cause, and no longer illustrate here.Second time relay 22 resets " 0 " and (waits next time simultaneously
Timing), the timely inflated with nitrogen of employee is prompted, to ensure on machine production line 6 all air conditioner externals 5 nitrogen charging.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (19)
1. a kind of nitrogen charging device for welding characterized by comprising
Nitrogen charging tooling (1), the nitrogen charging tooling (1) are connected with valve to be filled, and nitrogen is filled with valve to be filled；
Monitoring assembly (2) is connected with the nitrogen charging tooling (1) by nitrogen tube (4), and the monitoring assembly (2) is to single nitrogen charging
Time and/or interval nitrogen charging time are preset, and are filled according to the single nitrogen charging time and/or interval nitrogen charging time to described
Nitrogen tooling (1) is controlled.
2. the nitrogen charging device according to claim 1 for welding, which is characterized in that the monitoring assembly (2) includes:
First time relay (21) is monitored the single nitrogen charging time；
Second time relay (22) is monitored the interval nitrogen charging time.
3. the nitrogen charging device according to claim 2 for welding, which is characterized in that
The nitrogen charging time reaches the default nitrogen charging time of the first time relay (21), terminates nitrogen charging, the first time after
Electric appliance (21) power-off；
Second time relay (22) starts after single nitrogen charging, reaches the pre- of second time relay (22)
If being spaced the nitrogen charging time, second time relay (22) power-off.
4. the nitrogen charging device according to claim 2 for welding, which is characterized in that the monitoring assembly (2) further include:
Counter (23) counts nitrogen charging number according to the number of starts of the first time relay (21).
5. the nitrogen charging device according to claim 1 for welding, which is characterized in that the nitrogen charging tooling (1) includes:
Valve connection device, the valve connection device include: air inlet pipe (11) and at least one installation hole location (12), the peace
Dress hole location (12) connects with air inlet pipe (11).
6. the nitrogen charging device according to claim 5 for welding, which is characterized in that the installation hole location (12) includes:
Positioning region (121) and interconnecting piece (122), the positioning region (121) with the interconnecting piece (122) is coaxial is connected, and the connection
The cross-sectional area in portion (122) is greater than the cross-sectional area of the positioning region (121).
7. the nitrogen charging device according to claim 6 for welding, which is characterized in that the installation hole location (12) is multiple
When, the cross-sectional area of the positioning regions (121) of multiple installations hole location (12) is different and/or the length of interconnecting piece (122) not
Together.
8. the nitrogen charging device according to claim 5 for welding, which is characterized in that the nitrogen charging tooling (1) further include:
Nitrogen charging control valve, the nitrogen charging control valve setting is on the nitrogen tube (4) or on valve connection device, with control
The on-off of Nitrogen source gases.
9. the nitrogen charging device according to claim 8 for welding, which is characterized in that the nitrogen charging tooling (1) further include:
Start button is arranged on the nitrogen charging tooling (1), and the start button is electrical connected with the monitor component (2), institute
Start button is stated for triggering the on and off of nitrogen charging control valve.
10. the nitrogen charging device according to claim 1 for welding, which is characterized in that the monitoring assembly (2) is also wrapped
It includes:
Pressure sensor (25) is monitored the gas pressure in nitrogen tube (4), it is ensured that the gas pressure in nitrogen tube (4)
In pre-set pressure range.
11. the nitrogen charging device according to claim 10 for welding, which is characterized in that the monitoring assembly (2) is also wrapped
It includes: alarm (24),
The monitoring data of the monitoring assembly (2) exceed preset range, and alarm (24) starting is alarmed；And/or
Gas pressure in the nitrogen tube (4) not in pre-set pressure range, alarm by the alarm starting.
12. the nitrogen charging device according to claim 10 for welding, which is characterized in that the pre-set pressure range is
0.12-0.15Mpa。
13. the nitrogen charging device according to claim 6 for welding, which is characterized in that set inside the interconnecting piece (122)
There are gasket (13).
14. a kind of control method of the nitrogen charging device for welding, which is characterized in that after starting nitrogen charging tooling, monitoring assembly root
Acquisition data are monitored according to preset single nitrogen charging time and/or interval nitrogen charging time, by the control to nitrogen charging tooling,
Control nitrogen is filled with.
15. control method according to claim 14 characterized by comprising
Step a: pressing the start button that battery charger is loaded onto, and first time relay starts timing；
Step b: first time relay reaches default nitrogen charging time, the power-off of first time relay, while the second time relay
Device starts timing；
C: the second time relay of step reaches the interval nitrogen charging time, and second time relay resets zero, first time relay
Device restarting.
16. control method according to claim 14, which is characterized in that further include: step d: if in step c at the first time
Relay does not restart, alarms, and shuts down assembly line.
17. control method according to claim 14, which is characterized in that further include: step e: each first time relay
After device power-off, counter synchronizes counting to the number of run of first time relay.
18. control method according to claim 14, which is characterized in that in the step c further include: the second time after
When appliance starting, start assembly line, next equipment to nitrogen charging is driven into designated position, and by the equipment and nitrogen charging to nitrogen charging
Tooling is connected.
19. control method according to claim 14, which is characterized in that first time relay starts in the step a
Timing, start button display lamp are opened；In the step b after the power-off of first time relay, start button display lamp is closed.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111916291A (en) * | 2020-08-10 | 2020-11-10 | 浙江台州特总电容器有限公司 | Nitrogen gas charging device for aluminum shell packaged power container |
| CN113743770A (en) * | 2021-08-31 | 2021-12-03 | 格力电器（芜湖）有限公司 | Reversing valve welding nitrogen charging monitoring device, monitoring control method and equipment |
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| CN113743770B (en) * | 2021-08-31 | 2024-05-31 | 格力电器（芜湖）有限公司 | Reversing valve welding nitrogen charging monitoring device, monitoring control method and equipment |
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