CN2366221Y - Device for automatically controlling and displaying gas supply of electrogas welding machine - Google Patents
Device for automatically controlling and displaying gas supply of electrogas welding machine Download PDFInfo
- Publication number
- CN2366221Y CN2366221Y CN 99233265 CN99233265U CN2366221Y CN 2366221 Y CN2366221 Y CN 2366221Y CN 99233265 CN99233265 CN 99233265 CN 99233265 U CN99233265 U CN 99233265U CN 2366221 Y CN2366221 Y CN 2366221Y
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- voltage
- welding machine
- pressure sensor
- electro
- relay
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- Expired - Fee Related
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Abstract
The utility model relates to a device for automatically controlling and displaying air supply, which is arranged on the existing electrogas welding machine. The utility model is composed of a pressure sensor, a control circuit, a relay and an acoustic-optic display. When air supply is too small or too big, the control of the air supply is executed by the utility model, so the electrogas welding machine can not be welded, thus, welding quality is ensured, and the waste of gas is reduced.
Description
The utility model belongs to electronic-controlled installation.
Electro-gas welding machine claims gas shielded arc-welding machine again.Electro-gas welding machine generally adopts carbon dioxide or argon gas to spray from nozzle with certain speed at present, electric arc, molten bath and air are separated, immerse the adverse effect of arc column and molten bath generation with pernicious gases such as the oxygen in the prevention atmosphere, nitrogen, thus the good weld seam of obtained performance.Yet, because the distance from the source of the gas to the welding torch is far away, adopt the rubber hose gas transmission again for the ease of moving, long slightly cracky gas leakage of time, thus produce the air demand deficiency, therefore cause welding quality to descend serious also generation waste product.And because there is not measuring and controlling, make gas excessive and wasted gas in vain sometimes again because of hypertonia from the nozzle rate of outflow.
The purpose of this utility model is to provide a kind of and welds can stop tolerance too small or excessive the time, can make the electro-gas welding machine air feed of demonstration simultaneously again and control display unit automatically.
Technical essential of the present utility model is: 1. because every kind of electro-gas welding machine requires from the gas flow rate of nozzle ejection certain value is arranged, the length and the timing of stimulating the menstrual flow according to air delivering pipeline, gas flow rate is corresponding with pressure, with placing in the welding torch or the pressure sensor probe measurement gas pressure in the air delivering pipeline of close quick-fried torch; 2. the voltage signal that pressure sensor probe is recorded is sent in the voltage comparator in the control circuit with default comparative voltage and is compared; 3. voltage comparator is when receiving the voltage of sending here than the default big or little pressure sensor of comparing voltage value, and its output is carried voltage to electromagnetic coil relay that is attached thereto and display; 4. the actuating of relay, its normally closed interlock separates, and is connected on the electro-gas welding machine power supply control contactor solenoid loop dead electricity on the normally closed interlock, and contactor power supply normally open contact separates, and electro-gas welding machine has a power failure, thereby stops welding, and display is made demonstration simultaneously.
The utlity model has following advantage: 1. prevent the too small welding quality decline that causes of air demand even waste product occurs; 2. preventing that air demand is excessive causes gas waste; 3. be convenient to judge rapidly that air demand is excessive or too small.
Drawings and Examples below concrete structure and the former reason provide.
Fig. 1: the electro-gas welding machine air feed is controlled the displaying principle structure chart automatically.
Be described further below in conjunction with accompanying drawing.
The utility model is that a kind of electro-gas welding machine air feed is controlled display unit automatically, is arranged on the existing electro-gas welding machine.Existing electro-gas welding machine comprises power supply control contactor (4), appendix (5), the appendix manual modulation valve (6) of gas cylinder (1), pressure reducer (2), welding machine electric power device (3), welding machine electric power device (3), and the startup of welding torch (7), contactor (4) is by strong (8), welding work pieces (17).The utility model comprises a pressure sensor (9), a control circuit (10), relay (11) (12) and shows (13) (14).The probe of pressure sensor (9) is inserted welding torch (7) or near in the appendix (4) of welding torch (7), any one gas leakage of appendix that can be before this and record pressure and descend, and during the gas leakage of welding torch after this, owing to be to be held in the hand to be easy to discovery.The voltage output end of pressure sensor (9) links to each other with the input of voltage comparator (15) (16), and wherein voltage comparator (15) connects electrode input end, and voltage comparator (16) connects negative input.Because the output voltage of pressure sensor is with pressure and is directly proportional, so the negative pole of voltage comparator (15) and voltage comparator (16) connect the divider voltage of making comparisons respectively, wherein the magnitude of voltage exported at the required barometric minimum of electro-gas welding machine operate as normal of the comparing voltage value of voltage comparator (15) and pressure sensor (9) is identical, and the voltage that the comparing voltage value specific pressure sensor (9) of voltage comparator (16) is exported when the required barometric minimum of gas welding machine operate as normal is high slightly.When the voltage of pressure sensor (9) output is lower than the comparative voltage of voltage comparator (15), the output of voltage comparator (15) is carried high level to the solenoid and the display (13) of the relay that is attached thereto (11), relay (11) adhesive, normally closed interlock separates, the solenoid dead electricity that is connected on the power supply control contactor (4) of the electro-gas welding machine power supply device (3) on the normally closed interlock is opened, power supply device (3) has a power failure and can not weld, and display (13) is made demonstration simultaneously; When the voltage of pressure sensor (9) output is higher than the comparative voltage of voltage comparator (16), the output of voltage comparator (16) is carried high level to the solenoid and the display (14) of the relay that is attached thereto (12), relay (12) adhesive, normally closed interlock separates, power supply control contactor (4) the solenoid dead electricity that is connected on the electro-gas welding machine power supply device (3) on the normally closed interlock is opened, power supply device (3) has a power failure and can not weld, and display (14) is made demonstration simultaneously.The voltage of pressure sensor (9) output during the required barometric minimum of a little higher than electro-gas welding machine operate as normal of the comparing voltage value of voltage comparator (15), can allow air pressure upwards fluctuation within the specific limits, when preventing that air pressure normally upwards fluctuates and electro-gas welding machine outage influence is produced.Display employing sound or light all can be submitted people's attention to; Separately show, be easy to judge that to belong to air demand in the time can not welding excessive or too small.
Embodiment: pressure sensor adopts the micro pressure sensor of diameter 2.5mm, opens a circular hole that is slightly larger than 2.5mm on welding torch, the probe of pressure sensor is imbedded in the gas pipeline in the welding torch, and used resin-sealed tapping, with anti-gas-leak.The control circuit voltage comparator adopts LM339.Display adopts light emitting diode.
Claims (5)
1. an electro-gas welding machine air feed is controlled display unit automatically, is arranged on the existing electro-gas welding machine, and it is characterized in that: it has a pressure sensor (9), a control circuit (10), relay (11) (12) and display (13) (14).Wherein control circuit (10) input links to each other with pressure sensor (9), and output links to each other with relay (11) (12) solenoid and display (13) (14); Relay (11) (12) normally closed interlock links to each other with the control loop of electro-gas welding machine power supply device (3) power supply control contactor (4).
2. control display unit according to claim 1 is characterized in that the probe of pressure sensor (9) places in the interior or close appendix (4) of welding torch (7) of welding torch (7).
3. control display unit according to claim 1, it is characterized in that control circuit (10) adopts two voltage comparators (15) (16), wherein: voltage comparator (15) input anode connects the voltage output end of pressure sensor (9), the solenoid and the display (15) of its output relay termination (11), its input cathode connects the divider comparative voltage, and the magnitude of voltage of comparing voltage value pressure sensor (9) output during with the required barometric minimum of electro-gas welding machine operate as normal is identical; The negative input of voltage comparator (16) connects the voltage output end of pressure sensor (9), the solenoid and the display (14) of its output relay termination (12), its input anode connects the divider voltage of making comparisons, and the magnitude of voltage of comparing voltage value pressure sensor (9) output during than the required barometric minimum of electro-gas welding machine operate as normal is high slightly.
4. control display unit according to claim 1 is characterized in that display (13) (14) can be a light, also can be sound, can also be the device of acousto-optic combination.
5. control display unit according to claim 1 is characterized in that the solenoid controlled loop of power supply control contactor (7) of the power supply device (3) of electro-gas welding machine is connected on the normally closed interlock of relay (11) and relay (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99233265 CN2366221Y (en) | 1999-04-28 | 1999-04-28 | Device for automatically controlling and displaying gas supply of electrogas welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99233265 CN2366221Y (en) | 1999-04-28 | 1999-04-28 | Device for automatically controlling and displaying gas supply of electrogas welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2366221Y true CN2366221Y (en) | 2000-03-01 |
Family
ID=34021748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99233265 Expired - Fee Related CN2366221Y (en) | 1999-04-28 | 1999-04-28 | Device for automatically controlling and displaying gas supply of electrogas welding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2366221Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107378206A (en) * | 2017-08-03 | 2017-11-24 | 合肥锦和信息技术有限公司 | A kind of argon tungsten-arc welding argon filling adjusting means |
| CN108608095A (en) * | 2018-05-04 | 2018-10-02 | 唐山松下产业机器有限公司 | welding system and welding system control method |
| CN116441674A (en) * | 2023-06-14 | 2023-07-18 | 苏芯物联技术(南京)有限公司 | High-precision welding airflow control system and control method |
-
1999
- 1999-04-28 CN CN 99233265 patent/CN2366221Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107378206A (en) * | 2017-08-03 | 2017-11-24 | 合肥锦和信息技术有限公司 | A kind of argon tungsten-arc welding argon filling adjusting means |
| CN108608095A (en) * | 2018-05-04 | 2018-10-02 | 唐山松下产业机器有限公司 | welding system and welding system control method |
| CN116441674A (en) * | 2023-06-14 | 2023-07-18 | 苏芯物联技术(南京)有限公司 | High-precision welding airflow control system and control method |
| CN116441674B (en) * | 2023-06-14 | 2023-08-15 | 苏芯物联技术(南京)有限公司 | High-precision welding airflow control system and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |