CN203736386U - Protecting mask and electrical arc welding device - Google Patents
Protecting mask and electrical arc welding device Download PDFInfo
- Publication number
- CN203736386U CN203736386U CN201320759147.XU CN201320759147U CN203736386U CN 203736386 U CN203736386 U CN 203736386U CN 201320759147 U CN201320759147 U CN 201320759147U CN 203736386 U CN203736386 U CN 203736386U
- Authority
- CN
- China
- Prior art keywords
- welding
- shading panel
- protecting mask
- arc
- illuminance
- 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.)
- Expired - Fee Related
Links
- 238000003466 welding Methods 0.000 title claims abstract description 83
- 230000005540 biological transmission Effects 0.000 claims description 41
- 238000010891 electric arc Methods 0.000 claims description 33
- 238000005286 illumination Methods 0.000 claims description 21
- 238000002835 absorbance Methods 0.000 claims description 13
- 208000027418 Wounds and injury Diseases 0.000 claims description 6
- 230000006378 damage Effects 0.000 claims description 6
- 208000014674 injury Diseases 0.000 claims description 6
- 238000004021 metal welding Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 2
- 238000002834 transmittance Methods 0.000 abstract 3
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000005375 photometry Methods 0.000 description 6
- 230000000007 visual effect Effects 0.000 description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000001144 postural effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Abstract
The utility model provides a protecting mask, through which an operator can clearly see a welding part even if the intensity of arc light is changed due to essential factors not be distinguished by waveforms of welding current or welding voltage. The protecting mask (HG) is equipped with a light shading panel (GP) which can protect the eyes of the operator from being damaged by the arc light, and comprises an illuminance transducer (SD) and a transmittance control part (GC), wherein the illuminance transducer (SD) is used for measuring the illuminance of arc light penetrating through the light shading panel; the transmittance control part (GC) is used for controlling the optical transmittance of the light shading panel so as to enable the measured value (Sd) of the illuminance to be equal to a preset illuminance set value. Even if the essential factors such as welding posture, a welding position, the distance from an electrical arc part to the protecting mask and the like causing the intensity change of arc light cannot be distinguished according to the waveforms of the welding current or the welding voltage, the illuminance after the arc light penetrates through the light shading panel is kept to be an expected value, therefore, the operator can clearly see the welding part all the time.
Description
Technical field
This utility model relates to the protecting mask of the light transmission of controlling shading panel in order to protect welding operator's eyes not to be subject to the injury of arclight and the arc-welding apparatus that possesses this protecting mask.
Background technology
Welding operator, by manually carry out arc welding in the situation that, in order to protect eyes not to be subject to the injury of arclight, use the protecting mask that shading panel is installed.Shading panel is the light filter that has reduced optical transmission rate, by this shading panel, can be confirmed electric arc happening part and be welded by visual.Electric arc light intensity according to the size of welding current and difference, is therefore prepared the different a plurality of shading panels of light transmission in advance, according to welding current value, changes and uses shading panel.Before electric arc carries out striking; by shading panel, almost can't see weld part; need to carry out following miscellaneous operation: before electric arc carries out striking, make in advance protecting mask leave eyes the place ahead, if electric arc carries out striking, in eyes the place ahead, place this protecting mask.
The invention of patent documentation 1 is by UV sensor, to detect the generation of arclight, and the formation that the light transmission of protective spectacles (protecting mask) is changed.That is, when UV sensor does not detect arclight (when electric arc striking is front), around increase light transmission energy are visual.And if UV sensor detects arclight, light transmission diminishes and turns dark, and arclight is carried out to shading the visual electric arc happening part of energy.By liquid crystal panel, carry out the variation of light transmission.If this liquid crystal panel is applied to voltage more than benchmark, light transmission becomes large, and when not applying voltage, light transmission is minimum.Can according to applied magnitude of voltage off grade adjust light transmission.
The invention of patent documentation 2 is for detecting welded condition, and the formation that makes to protect the light transmission of guard shield (shading panel) to change according to this welded condition.That is while, making light transmission when the size of welding current, short-circuit condition or electric arc generation state, when the electrode straight polarity of alternating current arc welding or electrode negative polarity, between peak period of pulse electric arc welding or during base value, change.Thus, can be clear that welded condition.
Technical literature formerly
Patent documentation 1:JP Unexamined Patent 2-159272 communique
No. 4961428 communique of patent documentation 2:JP patent
In above-mentioned patent documentation 1, if produce arclight, the light transmission of the shading panel of protecting mask automatically reduces, and therefore can protect welding operator's eyes not to be subject to the injury of arclight.But, in this patent documentation 1, even if electric arc light intensity changes according to welded conditions such as welding current value, electric arc generation state, electric arc polarity, the light transmission of shading panel is also fixed value, therefore exist weld part to cross and brightly eyes are produced to burden, and the dimmed situation about seeing of being difficult to conversely.
In above-mentioned patent documentation 2, can make shading panel be changed to the light transmission that is suitable for welded condition, therefore can be clear that all the time weld part.But, during can making size that the welded condition of suitableization of light transmission of shading panel is welding current, short circuit by this patent documentation 2 or between the peak period of arc period, pulse electric arc welding or during base value, the electrode straight polarity of alternating current arc welding or electrode negative polarity etc.That is, for differentiating according to the waveform of welding current or weldingvoltage the situation of welded condition.
When welding operator manually carries out arc welding, if the welding such as the advancing angle of welding torch postural change, electric arc light intensity changes, so the brightness meeting change after transmission shading panel.Be irradiated to electric arc light intensity change according to the advanced positions of welding of shading panel.And then, be irradiated to the electric arc light intensity of shading panel according to the distance of electric arc happening part and protecting mask also change.The above-mentioned essential factor of electric arc light intensity change can not be differentiated according to the waveform of welding current or weldingvoltage, therefore can not make the light transmission of shading panel suitably change, and existence can not be clear that the problem of weld part and so on all the time.
Utility model content
At this; even if the waveform of the intensity that the purpose of this utility model is to provide a kind of arclight based on by welding current or weldingvoltage can not be differentiated wants thereby produce change, also can be clear that all the time protecting mask and the arc-welding apparatus of weld part.
In order to solve above-mentioned problem, the invention of technical scheme 1 is a kind of protecting mask, the eyes that protection welding operator is installed are not subject to the shading panel of the injury of arclight, and this protecting mask possesses: illuminance transducer, the illumination of arclight of above-mentioned shading panel that it has measured transmission; With absorbance control part, its control above-mentioned shading panel light transmission so that the measured value of this illumination equate with predetermined illuminance setting value.
The invention of technical scheme 2 is protecting mask claimed in claim 1, it is characterized in that the light transmission capping value to above-mentioned shading panel.
The invention of technical scheme 3 is a kind of arc-welding apparatus, it is characterized in that, possesses: the protecting mask described in claim 1 or 2; Welding torch to electrode power supply; And the source of welding current, its output makes to produce between above-mentioned electrode and mother metal welding current and the weldingvoltage of electric arc.
According to this utility model; even due to welding posture, welding advanced positions, from electric arc happening part till the distance of protecting mask etc. according to the waveform of welding current or weldingvoltage, can not differentiate wanting of its variation thereby allow electric arc light intensity produce change, also can be by transmission the illumination after shading panel remain expected value.Therefore; in this utility model; even if can provide a kind of electric arc light intensity that allows the essential factor based on not differentiating according to the waveform of welding current or weldingvoltage produce change, also can be all the time the clearly protecting mask of visual weld part and arc-welding apparatus.
Accompanying drawing explanation
Fig. 1 is the block diagram that possesses the arc-welding apparatus of the protecting mask that embodiment of the present utility model is relevant.
Fig. 2 is the oscillogram of each signal of the arc-welding apparatus of Fig. 1.
Symbol description:
1 electrode
2 mother metals
3 electric arcs
4 welding torches
GC absorbance control circuit
Gc absorbance control signal
GP shading panel
HG protecting mask
Iw welding current
The PS source of welding current
SD illuminance transducer
Sd illumination photometry signal
Illumination before Sp transmission shading panel
ST welding torch switch
St welds commencing signal
Vw weldingvoltage
θ advancing angle
The specific embodiment
Below, with reference to accompanying drawing, embodiment of the present utility model is described.
Fig. 1 is the block diagram of the arc-welding apparatus of the protecting mask that comprises that embodiment of the present utility model is relevant.This figure is that arc-welding apparatus is the situation of non-melt electrode arc welder, but identical with the situation of consumable electrode arc welding device.Below, with reference to this figure, each module is described.
Source of welding current PS is the source of welding current with the non-melt electrode arc welding use of common constant-current characteristics, if welding commencing signal St described later, in high level (High), exports the welding current Iw setting.
Produce the electric arc 3 of energising welding current 1w being installed between the electrode 1 of tungsten etc. of welding torch 4 front ends and mother metal 2, and apply weldingvoltage Vw.
Welding torch switch S T is arranged at welding torch 4, if welding operator is placed in connection by welding torch switch S T, exports the welding commencing signal St in high level.If this welding commencing signal St is in high level, source of welding current PS is started.
Protecting mask HG by dotted line possesses illuminance transducer SD, absorbance control circuit GC and shading panel GP.Protecting mask HG is by the light transmission of shading panel GP restriction arclight, and protects welding operator's eyes not to be subject to the injury of arclight.
Illuminance transducer SD measures the illumination after transmission shading panel GP, and exports illumination photometry signal Sd.
Absorbance control circuit GC is usingd above-mentioned illumination photometry signal Sd as input, and the mode equating with predetermined illuminance setting value according to the value of illumination photometry signal Sd is exported absorbance control signal Gc.Now, the value that also can higher limit be set to absorbance control signal Gc.Therefore as above, due to the light transmission of shading panel GP is arranged to higher limit, can prevent from crossing transiently bright and brought burden to eyes.
Shading panel GP is usingd above-mentioned absorbance control signal Gc as input, and controls the light transmission for being determined by absorbance control signal Gc.Same as the prior art, shading panel GP adopts the liquid crystal panel that can make according to applied magnitude of voltage the light transmission multistage change.
The light transmission of the shading panel GP of protecting mask HG change automatically so that transmission the illumination of light of shading panel GP equate with illuminance setting value.Therefore, in welding, even if welding posture, welding advanced positions, change and electric arc light intensity produces change from electric arc happening part till the distance of protecting mask HG etc., also can be by transmission the brightness preservation after shading panel GP for fixing.Its result, can not bring burden to eyes, can clearly visually see all the time weld part.
Fig. 2 is the oscillogram of each signal of the protecting mask HG described in Fig. 1.This figure (A) represents welding current Iw, this figure (B) represents the advancing angle θ of welding torch 4, this figure (C) represents the illumination Sp before transmission shading panel GP, and this figure (D) represents absorbance control signal Gc, and this figure (E) represents illumination photometry signal Sd.Below, with reference to this figure, describe.
As shown in this figure (A), welding current Iw is steady state value.And, as shown in this figure (B), situation about increasing continuously along with time lapse for advancing angle θ.If it is large that advancing angle θ becomes,, as shown in this figure (C), the illumination Sp before transmission shading panel GP becomes large gradually.It is corresponding that this situation and the electric arc light intensity that shading panel GP is irradiated become large situation.
If it is large that illumination Sp becomes,, as shown in this figure (D), absorbance control signal Gc diminishes gradually, and light transmission diminishes.Its result, as shown in this figure (E), the value of illumination photometry signal Sd becomes steady state value (illuminance setting value).As mentioned above, though the change of electric arc light intensity, transmission illumination after shading panel GP be also always expected value.
This figure is that situation about changing has occurred welding posture, but in the situation that welding advanced positions, from electric arc happening part till the distance of protecting mask etc. change and the electric arc light intensity that makes to be irradiated to shading panel GP that change has occurred is also identical.
The protecting mask HG relevant according to above-mentioned embodiment, possesses: to transmission the illuminance transducer SD that measures of the illumination of arclight of shading panel GP; With the light transmission of controlling shading panel GP so that the absorbance control part GC that the measured value of this illumination equates with predetermined illuminance setting value.Thus; even due to welding posture, welding advanced positions, from electric arc happening part till can not the differentiating wanting of its variation thereby allow electric arc light intensity change according to the waveform of welding current or weldingvoltage of the distance of protecting mask etc., also can be by transmission the illumination after shading panel remain expected value.Therefore; in the present embodiment; even if can provide a kind of electric arc light intensity that allows the essential factor based on not differentiating according to the waveform of welding current or weldingvoltage produce change, also can be all the time the clearly protecting mask of visual weld part and arc-welding apparatus.
Claims (3)
1. a protecting mask, the eyes that protection welding operator is installed are not subject to the shading panel of the injury of arclight, and this protecting mask is characterised in that to possess:
Illuminance transducer, the illumination of arclight of above-mentioned shading panel that it has measured transmission; With
Absorbance control part, its control above-mentioned shading panel light transmission so that the measured value of this illumination equate with predetermined illuminance setting value.
2. protecting mask according to claim 1, is characterized in that,
Light transmission capping value to above-mentioned shading panel.
3. an arc-welding apparatus, is characterized in that, possesses:
Protecting mask described in claim 1 or 2;
Welding torch to electrode power supply; With
The source of welding current, its output makes to produce between above-mentioned electrode and mother metal welding current and the weldingvoltage of electric arc.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-268462 | 2012-12-07 | ||
| JP2012268462A JP2014113609A (en) | 2012-12-07 | 2012-12-07 | Protective face and arc-welding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203736386U true CN203736386U (en) | 2014-07-30 |
Family
ID=51170187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320759147.XU Expired - Fee Related CN203736386U (en) | 2012-12-07 | 2013-11-26 | Protecting mask and electrical arc welding device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2014113609A (en) |
| CN (1) | CN203736386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107242935A (en) * | 2017-06-02 | 2017-10-13 | 武汉威和光电股份有限公司 | A kind of automatic darkening welding filter lens and Auto-changing Shade Welding Mask Made |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6100449B1 (en) | 2016-11-04 | 2017-03-22 | ヤマザキマザック株式会社 | Combined processing apparatus and combined processing method |
| JP6851347B2 (en) * | 2018-06-21 | 2021-03-31 | Dmg森精機株式会社 | Machine Tools |
-
2012
- 2012-12-07 JP JP2012268462A patent/JP2014113609A/en active Pending
-
2013
- 2013-11-26 CN CN201320759147.XU patent/CN203736386U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107242935A (en) * | 2017-06-02 | 2017-10-13 | 武汉威和光电股份有限公司 | A kind of automatic darkening welding filter lens and Auto-changing Shade Welding Mask Made |
| CN107242935B (en) * | 2017-06-02 | 2019-03-05 | 武汉威和光电股份有限公司 | A kind of automatic darkening welding filter lens and Auto-changing Shade Welding Mask Made |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014113609A (en) | 2014-06-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 |