CN102814581A - Energy-saving argon tungsten-arc welding assembly with adjustable welding torch - Google Patents
Energy-saving argon tungsten-arc welding assembly with adjustable welding torch Download PDFInfo
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- CN102814581A CN102814581A CN2012102915063A CN201210291506A CN102814581A CN 102814581 A CN102814581 A CN 102814581A CN 2012102915063 A CN2012102915063 A CN 2012102915063A CN 201210291506 A CN201210291506 A CN 201210291506A CN 102814581 A CN102814581 A CN 102814581A
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- argon
- tungsten bar
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- 238000003466 welding Methods 0.000 title claims abstract description 118
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 title claims abstract description 116
- 229910052786 argon Inorganic materials 0.000 title claims abstract description 58
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 93
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 93
- 239000010937 tungsten Substances 0.000 claims abstract description 93
- 238000001816 cooling Methods 0.000 claims abstract description 82
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 42
- 239000007789 gas Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 238000004134 energy conservation Methods 0.000 claims description 27
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000011068 loading method Methods 0.000 claims description 2
- 238000005476 soldering Methods 0.000 claims description 2
- 238000010891 electric arc Methods 0.000 abstract description 25
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- NGONBPOYDYSZDR-UHFFFAOYSA-N [Ar].[W] Chemical compound [Ar].[W] NGONBPOYDYSZDR-UHFFFAOYSA-N 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
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- 230000007704 transition Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Abstract
An energy-saving argon tungsten-arc welding assembly with adjustable welding torch comprises a welding gun and an electrical control device which is connected with the welding gun, wherein the welding gun comprises a tungsten rod clamping component, a motor reducer (6), a cooling jacket, an electric arc nozzle (57), a nozzle retainer ring and a shielding gas nozzle; the tungsten rod clamping component comprises a tungsten rod (63) and an intermediate rod (84) which drives the tungsten rod (63) to lift and descend; the cooling jacket is used for delivering cool air film and shielding argon flow; and an argon arc welding machine is adopted as a welding source, the motor reducer (6) is taken as a drive source, the tungsten rod (63) is lifted and descended through a limit ring (96), a connecting ring (90), an upper nut and a lower nut (87) and the intermediate rod (84), the electrical control device is used for controlling the rotation direction of the motor reducer (6), furthermore, a top nut contact (21) is controlled to be communicated with an upper piece contact (15) or a lower piece contact (22), so the tungsten rod (63) is freely and continuously adjusted in a stepless manner, and is reset when the arc is quenched.
Description
Technical field
The present invention relates to a kind of tungsten argon arc welding machine, relate in particular to a kind of adjustable welding torch assembly of energy-conservation argon tungsten-arc welding that can offer the adjustable current density of tungsten argon arc welding machine.
Background technology
The electric arc that existing tungsten argon arc welding machine produces is divergent shape, and shape such as umbrella, the heat affected area is wide, fusion penetration is little, electric arc is stable inadequately, and the shortcoming of the drift of producing is arranged, and is prone to produce manufacturing deficiency, and the operating technology to the welder has very high requirement simultaneously.People develop the plasma-arc solder technology again, adopt the plasma welding machine of plasma-arc to have the energy density height, and directive property is good, good stability, fusion penetration are big, the advantage of heating region high concentration.But, the complex structure of plasma welding machine, expensive several times of costs than general argon arc welding machine, and for some weld gap the big or uneven workpiece in slit, plasma-arc is suitable.Under a lot of actual conditions, the seam of welded piece can not be very even, and argon arc that single employing is common or plasma-arc all can not advantageously address the above problem and contradiction.So need a kind of argon arc welding machine that can in welding process, can arbitrarily change arc current density at any time by the demand of the size in workpiece slit by operating personnel; But existing welding equipment electric arc adjusting device; There is unreasonable structure in the governor motion that is tungsten bar; The cooling water circulation is not in place also abundant inadequately, and the air film protection is inhomogeneous also can't be regulated, even outside not insulation reliably.
So, need a kind of the letting can be easy to operate in welding process really by operating personnel, be prone to regulate the complexity of electric arc with adaptation condition, and the tungsten argon arc welding machine welding torch of reliable, safe in utilization, low cost of manufacture rational in infrastructure.
Summary of the invention
The object of the present invention is to provide the adjustable welding torch assembly of a kind of energy-conservation argon tungsten-arc welding, this welding torch can be regulated arc energy density, and under the situation that does not increase power, obtains high efficiency welding.
To achieve these goals; The invention provides and a kind ofly regulate the adjustable welding torch assembly of energy-conservation argon tungsten-arc welding of arc energy density as driving with motor; Comprise welding gun, aqueous vapor electric control box, cooling water recirculation system, argon supply system; And the electrical control gear that links to each other with said welding gun, said welding gun comprises a tungsten bar clamp assembly, insulating coating, motor reducer, cooling jacket, arc nozzle, nozzle compacting ring, protects gas jets and be arranged on operating grip and the electric arc by-pass cock on the said insulating coating; The inner water, gas and electricity road of said operating grip links to each other with external water pneumoelectric control cabinet; Said tungsten bar clamp assembly comprises tungsten bar and drives the middle rod that said tungsten bar goes up and down; Said welding gun also comprises last slice contact and sheet contact once; Said cooling jacket is used to carry cold air film and argon shield stream; Said tungsten bar clamp assembly is inserted in the said cooling jacket; Cooling jacket has arc nozzle; Adopt the nozzle compacting ring that arc nozzle is fixedly connected with cooling jacket again, protection gas jets and nozzle compacting ring match, and said tungsten bar moves up and down through the centre bore of arc nozzle; Supporting one prohibits circle on the output shaft of said motor reducer, drives when making the output shaft rotation of motor reducer and prohibits circle rotation synchronously; Said taboo circle is connected with a clamping ring, and lower nut is fixedly connected on the said clamping ring and, makes motor reducer and last lower nut rotate synchronously; The said lower nut of going up is connected with said middle rod, and said middle rod is connected with a jacking nut contact; Adopt argon arc welding machine as the source of welding current; With motor reducer as drive source; Through prohibiting circle, clamping ring, go up lower nut and middle rod is accomplished the action that tungsten bar rises and descends, and through said electrical control gear control motor reducer rotation direction, and then being communicated with of control jacking nut contact and last slice contact or following sheet contact; Realize tungsten bar freely, stepless continuous ground is adjustable, and when blow-out, reset.
Further, drive through said motor reducer and to control said tungsten bar and promote or put down, or adopt manually or utilize spring control, or utilize the magnetic force hoisting that magnetic field produces or put down said tungsten bar.
Further, said electrical control gear comprises relay assembly, draws blow-out switch, electric welding machine radio-frequency generator and reversing switch; Through said reversing switch control motor reducer rotation direction; And then being communicated with of control jacking nut contact and last slice contact or time sheet contact; Make relay assembly work; And then control said tungsten bar and move up and down at the centre bore of arc nozzle, realize tungsten bar freely, stepless continuous ground is adjustable, and gets back to original shape when the blow-out through the said blow-out switch control tungsten bar that draws.
Further, said clamping ring and last lower nut are fixed through a round pin, through adopting said taboo circle, clamping ring, going up the combination that links of lower nut and round pin, make said in rod keep motion steady.
Further, said middle rod is provided with air drain d and keyway c, and said tungsten bar clamp assembly comprises that also one is used to clamp the interior chuck of said tungsten bar, and said interior chuck is arranged on down between jacking nut and the last lower nut, clamps through nut; Clamp tungsten bar through rod, interior chuck, following jacking nut and nut in said; Said arc nozzle is from tungsten bar top or bottom loading and unloading.
Further, said cooling jacket comprises cover, cooling jacket in cover in the cooling, the cooling, two water pipes and one first tracheae; Said cooling jacket forms an integral body through soldering; In the cover water proof sheet is set in the said cooling; The argon gas of cold air film outlet output is through the air drain d on second tracheae, the middle rod, cover in jacking nut, the cooling down, gets into the centre bore of arc nozzle again and forms the cold air film, and the diameter of centre bore reduces to form one deck cold air film and then compression arc suddenly; The argon gas of protection gas outlet forms the protection gas-bearing formation through sending under many on gap between first tracheae, cooling jacket, nozzle compacting ring and the arc nozzle and the arc nozzle round grooves.
Further, have many round grooves on the midplane of said arc nozzle, the diameter DE of the centre bore of said arc nozzle=[tungsten bar diameter+(0.5 ~ 1.5)] mm, the length DL of said centre bore=[tungsten bar diameter+(0 ~ 1.5)] mm.
Further, said arc nozzle adopts direct water-cooling or adopts indirect water-cooling.
Further, said indirect water-cooling further adopts inclined-plane or screw thread.
Further, one adjustment circle is set, is used for being separated from each other rod and arc nozzle at said welding gun middle part.
The invention has the advantages that provides a kind of energy-conservation argon tungsten-arc welding adjustable welding torch assembly, and this welding torch can be regulated arc energy density, and under the situation that does not increase power, obtains high efficiency welding.This welding torch can be applicable to any tungsten argon arc welding machine; And the electric arc that produces can carry out the transition to plasma arc gradually by common argon arc; This welding torch can by operating personnel the welding arc stepless continuous regulate between free electric arc and compression arc;, also reduce technical ability requirement to the welder because but the energy density of welder's regulated at will electric arc just can obtain obvious energy-saving effect.Make low-level welder be easy to rise to and be high level welder; Make a lower argon arc welding machine of price can have the function of this welding machine itself; Also had the function of expensive plasma motor, and two kinds of different electric arcs can stepless continuous ground phase co-conversion.
According to technical scheme of the present invention, tungsten bar can be loaded onto or draw off easily, can back out the protector nozzle earlier, backs out the nozzle compacting ring again; Take out arc nozzle, unscrew jacking nut down to screwdriver with one then, at this moment interior chuck just loses clamping action; Can load and unload tungsten bar this moment easily, equally also can set about from welding torch top carrying out the insertion of tungsten bar and drawing off, and can unscrew earlier and go up connecting tube; Take away shell and motor reducer then, unclamp jacking nut contact down again, can back-out by hand then clamping ring and last lower nut; Unscrew nut through screwdriver again, then interior chuck has just unclamped, and just can extract tungsten bar or insert out.
Description of drawings
Fig. 1 is the cutaway view of the welding gun part-structure of the adjustable welding torch assembly of energy-conservation argon tungsten-arc welding of the present invention;
Fig. 2 is the cooling jacket STRUCTURE DECOMPOSITION sketch map in the welding gun structure shown in Figure 1;
Fig. 3 is the cutaway view of nested structure in the cooling shown in Figure 2;
Fig. 4 is the cutaway view of nested structure in the cooling shown in Figure 2;
Fig. 5 is the cutaway view of cooling jacket structure shown in Figure 2;
Fig. 6 is the cutaway view of tungsten bar clamp assembly structure shown in Figure 1;
Fig. 7 is the cutaway view of each nozzle arrangements shown in Figure 1;
Fig. 8 is the cutaway view of nozzle compacting ring structure shown in Figure 1;
Fig. 9 is the aqueous vapor electric control box sketch map of the adjustable welding torch assembly of energy-conservation argon tungsten-arc welding of the present invention;
Figure 10 is the electrical control gear sketch map of the adjustable welding torch assembly of energy-conservation argon tungsten-arc welding of the present invention;
Figure 11 A-11C is that the adjustable welding torch assembly of energy-conservation argon tungsten-arc welding shown in Figure 1 adopts respectively manually, magnetic field force, spring are regulated tungsten bar generalized section up and down;
Figure 12 A-12B is that the adjustable welding torch assembly of energy-conservation argon tungsten-arc welding shown in Figure 1 adopts the but generalized section of arc nozzle of Direct Water cooling or various screw thread, inclined-plane indirect water-cooling.
[primary clustering symbol description]
1, screw rod; 2, pin; 3, go up shell;
6, motor reducer; 9, go up connecting tube; 12, rotation nut;
12, screw; 15, last slice contact; 18, top nut post;
21, jacking nut contact; 22, following sheet contact; 24, nut;
27, cover in; 30, nut; 33, adjustment circle;
36, cover in the cooling; 39, lower casing; 42, the second line of a couplet is taken over;
45, following jacking nut; 48, cover in the cooling; 481, water proof sheet;
482, boss; 51, cooling jacket; 54, nozzle compacting ring;
57, arc nozzle; 571, justify groove; 60, protection gas jets;
63, tungsten bar; 66, interior chuck; 69, first tracheae;
72, water pipe; 721, water inlet pipe; 722, outlet pipe;
73, cannelure; 75, second tracheae; 78, lead;
81, connect screwed pipe; 84, middle rod; 87, go up lower nut;
90, clamping ring; 93, bearing; 96, prohibit circle;
97, magnetosphere; 98, pin; 99, operating grip;
101, first tank switch; 102, reversing switch; 103, second tank switch;
105, draw the blow-out switch; 108, round pin; 109, compression spring;
A, tank; B, air drain; C, keyway;
F, external screw thread; D, air drain; E, nut groove.
The specific embodiment
Elaborate below in conjunction with the specific embodiment of accompanying drawing to the adjustable welding torch assembly of energy-conservation argon tungsten-arc welding provided by the invention.
The adjustable welding torch assembly of energy-conservation argon tungsten-arc welding involved in the present invention comprises welding gun, the electrical control gear that links to each other with said welding gun, aqueous vapor electric control box and peripheral cooling water recirculation system, argon supply system.Said welding gun comprises a tungsten bar clamp assembly, insulating coating, motor reducer, cooling jacket, arc nozzle, nozzle compacting ring, protects gas jets and be arranged on operating grip and the electric arc by-pass cock on the said insulating coating; The inner water, gas and electricity road of said operating grip links to each other with external water pneumoelectric control cabinet; Said tungsten bar clamp assembly comprises tungsten bar and drives the middle rod that said tungsten bar goes up and down.
At first, in conjunction with reference to shown in figure 1,2 and the accompanying drawing 6, put motor reducer 6 in the last shell 3; And bolt arranged; The supporting circle 96 of go up prohibiting uses screw 12 fastening again on the output shaft of motor reducer 6, drives when making the output shaft rotation of motor reducer 6 and prohibits circle 96 rotation synchronously; Prohibiting circle 96 bottoms is square healths; This side's health inserts in the square hole at clamping ring 90 centers, and clamping ring 90 is fixing with last lower nut 87 usefulness round pins 108, and the result of the combination of above-mentioned part is that motor reducer 6 rotations and last lower nut 87 are synchronous.Through adopting said taboo circle 96, clamping ring 90, going up the combination that links of lower nut 87 and round pin 108, make bearing 93 keep motion steadily, thereby make said in rod 84 keep motion steady.
There is one section external screw thread last lower nut 87 lower ends, and this external screw thread links to each other with the internal thread of middle excellent 84 upper ends and joins, during the external screw thread of last lower nut 87 is placed in the internal thread of excellent 84 upper ends; In in cover a screw is arranged on 27; Jacking nut contact 21 leading sections have external screw thread, during said external screw thread is screwed in cover 27 the screw, and in being screwed in the keyway c of excellent 84 upper ends; When the rotation under motor reducer 6 drives of last lower nut 87; Because the external screw thread of jacking nut contact 21 front ends is in middle excellent 84 keyway c, thus middle excellent 84 can move up and down and can not rotate, middle excellent 84 tungsten bars 63 that move up and down in the middle of will driving move up and down together.
The tungsten bar clamp assembly (see figure 6) that accompanies tungsten bar 63 is inserted in (see figure 2) in the cooling jacket; Arc nozzle 57 is arranged under the cooling jacket; Adopting the external screw thread of internal thread and the cooling jacket of nozzle compacting ring 54 to match again is pressed in arc nozzle 57 on the lower plane of cooling jacket tightly; The internal thread of protection gas jets 60 and the external screw thread of nozzle compacting ring 54 match, and tungsten bar 63 moves up and down through the centre bore in the middle of arc nozzle 57 bottoms.Said welding gun also comprises last slice contact 15 and sheet contact 22 once; Adopt argon arc welding machine as the source of welding current; With motor reducer 6 as drive source; Through prohibiting circle 96, clamping ring 90, go up lower nut 87 and middle excellent 84 and accomplish the action that tungsten bars 63 rise and descend, and through said electrical control gear control motor reducer 6 rotation directions, and then being communicated with of control jacking nut contact 21 and last slice contact 15 or following sheet contact 22; Realize tungsten bar 63 freely, stepless continuous ground is adjustable, and when blow-out, reset.At said welding gun middle part one adjustment circle 33 is set, is used for being separated from each other rod 84 and arc nozzle 57.Lead 78 joins with the negative pole of argon arc welding machine.
The argon shield stream of protection gas outlet gets into first tracheae 69 through expansion box; Get into cooling jacket 51 afterwards; Get into nozzle compacting ring 54 and the gap that arc nozzle 57 forms through air drain d again, form the protection gas-bearing formation through many on the arc nozzle 57 round grooves again.
The argon gas cold air film of cold air film outlet output gets into second tracheae 75 through expansion box; And the air drain d on the rod 84 during cover 27 gets in passing through; Get into the centre bore in the arc nozzle 57 through air drain d again, form the cold air film, very big effect is played in the compression of electric arc.The diameter of centre bore reduces suddenly and forms the strong cold air film of one deck and compressed electric arc.
Referring to accompanying drawing 2,3,4 and accompanying drawing 5, said cooling jacket comprises cover 36 in the cooling, overlaps 48 in the cooling, cooling jacket 51 and two water pipes and a tracheae 1, and its effect is to carry the cold air film and carry the protection argon gas.Being welded with 72, one in two water pipes on cover 36 (see figure 3)s in the cooling is water inlet pipe 721, and another root is an outlet pipe 722, has flat water flowing cannelure 73 under the cover 36 top circle plates in the cooling.Cover has been inlayed a water proof sheet 481 in 48 (see figure 4)s in the cooling, in water proof sheet 481 upper ends and the cooling on the cover 48 plane concordant, the gap of broad is left less than the bottom of cover 48 in the cooling in the lower end, the internal diameter of cover 48 is greater than the external diameter that overlaps 36 in the cooling in the cooling; On the cover 48 boss 482 is arranged in the cooling, the aperture of cover 48 is consistent with the external diameter size of cover 36 in the cooling in the cooling; Cover 36 is filled in the cooling and just between two parts, is left a ring gap behind the cover 48 in the cooling, lets two water pipes place water proof sheet about 481 during installation, and water inlet can not be short-circuited with water outlet like this, and maximum area ground cools off.Cooling jacket 51 (see figure 5)s upper end is welded with one first tracheae 69; The internal diameter of cooling jacket 51 is greater than the external diameter of cover 48 in the cooling; Cover 48 just leaves a ring gap after filling in cooling jacket 51 in the cooling between two parts, and the protection argon gas stream flows into the ring gap between interior cover 48 of cooling and the cooling jacket 51 again after first tracheae 69 gets into.
Referring to accompanying drawing 6, rod 84, tungsten bar 63, nut 24, interior chuck 66, following jacking nut 45 during said tungsten bar clamp assembly comprises.Interior chuck 66 is copper parts that the bottom has the line of rabbet joint; Middle rod 84 is that the upper end has the bigger internal thread of a diameter, and endoporus has the less internal thread of a diameter, and there is an external screw thread lower end, and the middle part has an air drain d, and the upper end has the part of keyway c; There is an internal thread following jacking nut 45 upper ends, and there is a flat ditch nut groove e lower end.After tungsten bar 63 is filled in the endoporus of interior chuck 66; Excellent 84 endoporus in filling in together again; Screw in the above then behind the nut 24,, can twist following jacking nut 45 very tightly through screwdriver as long as just can clamp excellent 63 lower ends during jacking nut 45 is screwed to down to tungsten bar 63; This is owing to down under the endoporus of jacking nut 45 inclined-plane is arranged, and after chuck 66 lower bevel its line of rabbet joint is tightened up in this inclined-plane holds out against and has clamped tungsten bar 63 securely.
Referring to accompanying drawing 7, said arc nozzle 57 is good by thermal conductivity, and the anaerobic pure copper material that thermal capacity is big processes, and digging on the midplane of arc nozzle 57 has many round grooves 571.Said arc nozzle 57 can adopt direct water-cooling or adopt the indirect water-cooling cooling, and said indirect water-cooling cooling further can be adopted but arc nozzle 57 of various screw threads or inclined-plane indirect water-cooling.The diameter of bore DE of the centre bore of arc nozzle 57 and aperture length DL and tungsten bar diameter have certain proportionate relationship; Promptly; The diameter DE of the centre bore of said arc nozzle 57=[tungsten bar diameter+0.5 ~ 1.5] mm, the length DL of said centre bore=[tungsten bar diameter+0 ~ 1.5] mm.
Referring to accompanying drawing 8, internal thread and external screw thread are arranged at the top of nozzle compacting ring 54, and the external diameter of arc nozzle 57 is less than the internal diameter of nozzle compacting ring 54, have just produced the gap after cooperatively interacting, for argon gas flows out the condition of having created.
Referring to accompanying drawing 9, the aqueous vapor electric control box comprises current transformer and cyclelog; The composition of cyclelog has transformer, electric control (machine governor), rectifier and relay assembly (comprising four relays) to form, and current transformer is made up of air inlet, the outlet of cold air film, protector outlet and expansion box (not shown).
Referring to accompanying drawing 10, electrical control gear comprises current transformer, draws blow-out switch 105, electric welding machine radio-frequency generator, signal lamp, reversing switch 102 and relay assembly (comprising four relays).Reversing switch 102 is the switches that can change motor polarity, through the operation to this switch, can make the motor forward or reverse, also can make motor stop at a certain intermediateness.Through said reversing switch 102 control motor reducers 6 rotation directions; And then being communicated with of control jacking nut contact 21 and last slice contact 15 or time sheet contact 22; Make relay assembly work; And then control said tungsten bar 63 and move up and down at the centre bore of arc nozzle 57, realize tungsten bar 63 freely, stepless continuous ground is adjustable, and gets back to original shape when the blow-out through the said blow-out switch 105 control tungsten bars 63 that draw.This embodiment drives through said motor reducer and controls said tungsten bar 63 and promote or put down; Also can adopt in other embodiments manually or utilize spring control, or utilize the magnetic force hoisting that the suction magnetic field in the magnetic field that produces behind the coil electricity produces or put down said tungsten bar 63.
Referring to accompanying drawing 11A-11C; Wherein accompanying drawing 11A is that the adjustable welding torch assembly of energy-conservation argon tungsten-arc welding according to the invention adopts manual adjustments tungsten bar generalized section up and down; Accompanying drawing 11B is that the adjustable welding torch assembly of energy-conservation argon tungsten-arc welding according to the invention adopts magnetic field force to regulate tungsten bar generalized section up and down, and accompanying drawing 11C is that the adjustable welding torch assembly of energy-conservation argon tungsten-arc welding according to the invention adopts spring to regulate tungsten bar generalized section up and down.
Referring to accompanying drawing 12A-12B; Wherein accompanying drawing 12A is that the adjustable welding torch assembly of energy-conservation argon tungsten-arc welding according to the invention adopts Direct Water to cool off the generalized section of arc nozzle, and accompanying drawing 12B is that the adjustable welding torch assembly of energy-conservation argon tungsten-arc welding according to the invention adopts straight various screw thread, inclined-plane indirect water-cooling but to cool off the generalized section of arc nozzle.
Continuation is referring to accompanying drawing 8, and welding process begins to be transferred to suitable position to the protection gas control valve in the outlet of protection gas, and position as shown in Figure 8 is not protect gas output; Swivel bolt 90 degree can reach maximum protection gas output.Between 0 ~ 90 degree, strengthen with angle, the output of protection gas also strengthens gradually; The cold air film-strength reduces gradually in the process that protection gas strengthens gradually; The cold air film reduces just electric arc to be compressed to reduce gradually, and the argon gas of air inlet derives from argon bottle, is that weighing apparatus is fixed constant after its flow mixes up.
Next; Referring to Fig. 1, Fig. 2, Fig. 3 and accompanying drawing 6; The argon gas of cold air film outlet output gets into second tracheae, 75 (see figure 1)s; Air drain d (see figure 6) in getting into through this pipe again on the rod 84, the cylindrical along jacking nut 45 under the dirty process of groove gets in the cavity of cover 36 in the cooling again, gets into the centre bore of arc nozzle 57 again and forms the cold air film.In addition; The argon gas of protection gas outlet gets into the internal diameter gap that gets into cooling jacket 51 behind first tracheae 69 again and enters into the gap between nozzle compacting ring 54 and the arc nozzle 57, again through forming the protection gas-bearing formation along sending under the wall behind many on the arc nozzle 57 round grooves.
Next,, press first water tank, 101 switches, make relay assembly work referring to Fig. 9, Figure 10; Close again second tank switch 103 on the cyclic water tank is so water is sent to the water pipe 72 from outlet; Flat cannelure in the current entering is cooled off on the cover 36 overlaps the water proof sheet 481 dirty bottoms of arriving on 48 in cooling, come out to enter into the water inlet on the cyclic water tank from delivery port again; Then press HF switch, welding machine striking success, the electric arc that produce this moment is a kind of common free electric arc, is umbrella, is prone to drift, and always common argon tungsten-arc welding comes to this, and the welder needs higher technical level.
Press reversing switch 102 again, connect motor reducer 6, motor reducer 6 is just changeing to drive prohibits circle 96; Prohibit circle 96 and drive clamping ring 90 again; Clamping ring 90 joins with last lower nut 87 usefulness round pins 108, also just changes so go up lower nut 87, with match middle excellent 84 (see figure 6)s of commentaries on classics of last lower nut 87.Because there is keyway c middle excellent 84 upper ends, and rod 84 rotates in 21 restrictions of jacking nut contact, thus about middle excellent 84 straight lines, and be with tungsten bar 63 together about.When rising gradually near arc nozzle 57 centre bores in the tip of tungsten bar 63, and gradually during the indentation centre bore, its electric arc has received the cold air mould and has contracted, and has also received the mechanical compress of the hole wall of arc nozzle 57 centre bores; Arc diameter is reduced greatly, and the electric arc that attenuates simultaneously can produce magnetic compression again, strengthens under the reinforcement gradually in this three big compression; Arc diameter is more and more thinner, but arc power do not reduce, and arc temperature suddenly raises; Be elevated to 30000 ~ 50000 degree by 7000 degree, drift disappears, and arc stiffness is good; Electric arc just develops into plasma-arc from common free electric arc gradually like this, and the welder is easy to operate, and rudimentary welder can weld out high-quality weld seam easily.
Next, middle excellent 84 drive tungsten bar 63 continues to rise, and excellent 84 upper ends bump against a contact 15 in making, and go up a contact 15 like this and connect with jacking nut contact 21; Make the work of corresponding relays assembly, motor reducer 6 stalls, the interior degree of depth of tungsten bar 63 indentation arc nozzles 57 centre bores this moment reaches maximum; The electric arc compression reaches capacity, and as stirring reversing switch 102 again, the polarity of motor reducer 6 is changed; Motor reducer 6 counter-rotatings, so middle excellent 84 drive tungsten bars 63 descend, excellent 84 lower ends bump against down sheet contact 22 in making; Descend sheet contact 22 and jacking nut contact 21 to connect like this, make the work of corresponding relays assembly, motor reducer 6 stalls; Tungsten bar 63 stretched out arc nozzle 57 centre bores and reached maximum length outward this moment, and electric arc has been to form free electric arc, and this electric arc is dispersed, drift, instability.
The above-mentioned tungsten bar 63 of just having described is at two extreme positions up and down; In the actual welding process; Tungsten bar 63 can rest on the arbitrary position between these two extreme positions, and corresponding electric arc also is in compression in various degree, and valuable is that this electric arc compression is a continuous stepless.
Welding is accomplished, and draws blow-out switch 105 and makes 0,1 to break off, and connects 0,2 points, so the blow-out contact is communicated with; Make the work of corresponding relays assembly, connected the return circuit of motor reducer 6 like this, motor reducer 6 counter-rotating, if this moment tungsten bar 63 overhanging maximums; Then be exactly sheet contact 22 and 21 connections of jacking nut contact down, make the work of corresponding relays assembly, so last slice contact 15 corresponding relays assemblies are opened, motor reducer 6 can't be worked; If tungsten bar 63 not in this other any position, then descends sheet contact 22 and jacking nut contact 21 to break off, the corresponding relays assembly is not worked; After blow-out contact 0,2 is connected so, make the work of corresponding relays assembly, motor reducer 6 counter-rotatings; Tungsten bar 63 descends, and makes the work of corresponding relays assembly, motor reducer 6 stalls up to tungsten bar 63 with 22 collisions of following sheet contact; Tungsten bar 63 stretches out arc nozzle 57 centre bore outermost, when this position also is the striking that this project designed, and the fixed position that tungsten bar 63 should be in; During each striking, tungsten bar 63 must be in this fixed position, to guarantee the reliability of striking.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (10)
1. adjustable welding torch assembly of energy-conservation argon tungsten-arc welding; Comprise welding gun and the electrical control gear that links to each other with said welding gun; It is characterized in that said welding gun comprises tungsten bar clamp assembly, motor reducer (6), cooling jacket, arc nozzle (57), nozzle compacting ring (54), protection gas jets (60); Said tungsten bar clamp assembly comprises tungsten bar (63) and drives the middle rod (84) that said tungsten bar (63) goes up and down; Said welding gun also comprises last slice contact (15) and once sheet contact (22); Said cooling jacket is used to carry cold air film and argon shield stream; Said tungsten bar clamp assembly is inserted in the said cooling jacket; Cooling jacket has arc nozzle (57); Adopt nozzle compacting ring (54) that arc nozzle (57) is fixedly connected with cooling jacket again; Protection gas jets (60) matches with nozzle compacting ring (54), and said tungsten bar (63) moves up and down through the centre bore of arc nozzle (57); Supporting one prohibits circle (96) on the output shaft of said motor reducer (6), drives when making the output shaft rotation of motor reducer (6) and prohibits circle (96) rotation synchronously; Said taboo circle (96) is connected with a clamping ring (90), and lower nut (87) is fixedly connected on the said clamping ring (90) and, makes motor reducer (6) and last lower nut (87) rotate synchronously; The said lower nut (87) of going up is connected with said middle rod (84), and said middle rod (84) is connected with a jacking nut contact (21); Adopt argon arc welding machine as the source of welding current; With motor reducer (6) as drive source; Through prohibiting circle (96), clamping ring (90), going up lower nut (87) and middle rod (84) is accomplished the action that tungsten bar (63) rises and descends; And through said electrical control gear control motor reducer (6) rotation direction; And then control jacking nut contact (21) and last slice contact (15) or being communicated with of sheet contact (22) down, realize tungsten bar (63) freely, stepless continuous adjustable, and when blow-out, reset.
2. the adjustable welding torch assembly of energy-conservation argon tungsten-arc welding according to claim 1; It is characterized in that; Controlling said tungsten bar (63) through said motor reducer driving (6) promotes or puts down; Or employing is manual or utilize spring control, or utilizes the magnetic force hoisting of magnetic field generation or put down said tungsten bar (63).
3. the adjustable welding torch assembly of energy-conservation argon tungsten-arc welding according to claim 1 is characterized in that, said electrical control gear comprises relay assembly, draws blow-out switch (105), electric welding machine radio-frequency generator and reversing switch (102); Through said reversing switch (102) control motor reducer (6) rotation direction; And then being communicated with of control jacking nut contact (21) and last slice contact (15) or time sheet contact (22); Make relay assembly work; And then control said tungsten bar (63) and move up and down at the centre bore of arc nozzle (57), realize tungsten bar (63) freely, stepless continuous ground is adjustable, and gets back to original shape when the blow-out through said blow-out switch (105) the control tungsten bar (63) that draws.
4. the adjustable welding torch assembly of energy-conservation argon tungsten-arc welding according to claim 1; It is characterized in that; Further; Said clamping ring (90) and last lower nut (87) are fixing through a round pin (108), through adopting said taboo circle (96), clamping ring (90), going up the combination that links of lower nut (87) and round pin (108), make said in rod (84) keep moving steady.
5. the adjustable welding torch assembly of energy-conservation argon tungsten-arc welding according to claim 1; It is characterized in that; Rod (84) is provided with air drain d and keyway c in said; Said tungsten bar clamp assembly comprises that also one is used to clamp the interior chuck (66) of tungsten bar (63), and said interior chuck (66) is arranged on down between jacking nut (45) and the last lower nut (87), clamps through nut (24); Clamp tungsten bar (63) through rod (84), interior chuck (66), following jacking nut (45) and nut (24) in said; Said arc nozzle (57) is from tungsten bar (63) top or bottom loading and unloading.
6. the adjustable welding torch assembly of energy-conservation argon tungsten-arc welding according to claim 1 is characterized in that, said cooling jacket comprises cover (48), cooling jacket (51), two water pipes (72) and one first tracheae (69) in cover (36) in the cooling, the cooling; Said cooling jacket forms an integral body through soldering; In the cover (48) a water proof sheet (481) is set in the said cooling; The argon gas of cold air film outlet output is through cover (36) in the air drain d on second tracheae (75), the middle rod (84), following jacking nut (45), the cooling; Get into the centre bore of arc nozzle (57) again and form the cold air film, the diameter of centre bore reduces to form one deck cold air film and then compression arc suddenly; The argon gas of protection gas outlet forms the protection gas-bearing formation through sending under gap between first tracheae (69), cooling jacket (51), nozzle compacting ring (54) and the arc nozzle (57) and many round grooves (571) on the arc nozzle (57).
7. the adjustable welding torch assembly of energy-conservation argon tungsten-arc welding according to claim 1; It is characterized in that; Have many round grooves (571) on the midplane of said arc nozzle (57); The diameter DE of the centre bore of said arc nozzle (57)=[tungsten bar (63) diameter+(0.5 ~ 1.5)] mm, the length DL of said centre bore=[tungsten bar (63) diameter+(0 ~ 1.5)] mm.
8. the adjustable welding torch assembly of energy-conservation argon tungsten-arc welding according to claim 1 is characterized in that, said arc nozzle (57) adopts direct water-cooling or adopts indirect water-cooling.
9. the adjustable welding torch assembly of energy-conservation argon tungsten-arc welding according to claim 8 is characterized in that said indirect water-cooling further adopts inclined-plane or screw thread.
10. the adjustable welding torch assembly of energy-conservation argon tungsten-arc welding according to claim 1 is characterized in that, at said welding gun middle part one adjustment circle (33) is set, and is used for being separated from each other rod (84) and arc nozzle (57).
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| CN103600162A (en) * | 2013-12-04 | 2014-02-26 | 北京电子科技职业学院 | Argon arc welding gun |
| CN104289801A (en) * | 2013-07-15 | 2015-01-21 | 昆山华焊科技有限公司 | Tungsten electrode telescopic welding gun |
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| CN104289801A (en) * | 2013-07-15 | 2015-01-21 | 昆山华焊科技有限公司 | Tungsten electrode telescopic welding gun |
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| CN104668743A (en) * | 2014-12-25 | 2015-06-03 | 哈尔滨工业大学 | Plasma-arc welding device implemented by aid of TIG (tungsten inert gas) welding method |
| CN104668743B (en) * | 2014-12-25 | 2016-09-07 | 哈尔滨工业大学 | A kind of device utilizing TIG weld method to realize PLASMA ARC WELDING |
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| CN105834563B (en) * | 2016-06-15 | 2018-08-07 | 济南尼克焊接技术有限公司 | A kind of efficiently air cooling argon-arc welding gun |
| CN106001861B (en) * | 2016-06-15 | 2018-08-07 | 济南尼克焊接技术有限公司 | A kind of high-efficiency water cooling argon-arc welding gun |
| CN106001861A (en) * | 2016-06-15 | 2016-10-12 | 济南尼克焊接技术有限公司 | Efficient water-cooling argon arc welding gun |
| CN105834563A (en) * | 2016-06-15 | 2016-08-10 | 济南尼克焊接技术有限公司 | Efficient air-cooled argon arc welding gun |
| US11780025B2 (en) | 2016-06-15 | 2023-10-10 | Jinan Uniarc Welding Technology Limited | TIG welding torch |
| US12240065B2 (en) | 2016-06-15 | 2025-03-04 | Jinan Uniarc Welding Technology Limited | TIG welding torch |
| CN110198803A (en) * | 2017-03-20 | 2019-09-03 | 杨邰闲 | Torch is used in welding |
| CN110198803B (en) * | 2017-03-20 | 2022-06-21 | 杨邰闲 | welding torch |
| CN107971614A (en) * | 2017-12-28 | 2018-05-01 | 无锡宝威焊割设备有限公司 | Argon-arc welding gun pipette tips |
| CN109465518A (en) * | 2018-09-26 | 2019-03-15 | 江苏天工科技股份有限公司 | Purge cooled titanium alloy smelting tool |
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| CN111375874A (en) * | 2020-04-28 | 2020-07-07 | 臧情义 | A fully automatic TIG welding gun for robots |
| CN111375874B (en) * | 2020-04-28 | 2025-02-18 | 臧情义 | A fully automatic TIG welding gun for robots |
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