CN107866627A - A kind of vacuum argon filling welding jig and method - Google Patents
A kind of vacuum argon filling welding jig and method Download PDFInfo
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- CN107866627A CN107866627A CN201710968973.8A CN201710968973A CN107866627A CN 107866627 A CN107866627 A CN 107866627A CN 201710968973 A CN201710968973 A CN 201710968973A CN 107866627 A CN107866627 A CN 107866627A
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- welding
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- control system
- vacuum
- weld
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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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/02—Seam welding; Backing means; Inserts
- B23K9/028—Seam welding; Backing means; Inserts for curved planar seams
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/14—Titanium or alloys thereof
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
A kind of vacuum argon filling welding jig and method, including vacuum chamber, control system and the welding robot being placed in vacuum chamber, frock clamp, positioner and power buggy, wherein described positioner is arranged on power buggy and draws disengaging vacuum chamber by power buggy, and the weld jig for welding circular weld or labyrinth workpiece is installed on the positioner, the frock clamp is the piano type fixture for welding straight weld and is arranged on the bottom surface of vacuum chamber, the control system mainly includes PLC control system and the welding robot control system being connected with PLC control system, power buggy servo-control system, hatch door control system, argon gas circulating filtration control system, security protection system, monitoring system and illuminator, the source of welding current that the welding robot uses is TIG power supply.The present invention can realize the welding of various metals material, various structures, and be welded under vacuum argon filling state, can improve Product jointing quality, improve welding efficiency, make weld seam attractive in appearance bright and clean.
Description
Technical field
The invention belongs to welding technology field, it is specifically related to a kind of suitable for the true of various metals material and various structures
Empty argon filling robot welding jig and welding method, the welding for the titanium alloy workpiece that is particularly suitable for use in.
Background technology
The materials such as titanium alloy, stainless steel are all easily fast with the oxygen in air, nitrogen, hydrogen under conventional environment during manual welding
Speed reacts.Particularly titanium alloy, can quickly inhale hydrogen when temperature is more than 300 DEG C, at more than 600 DEG C can quick oxygen uptake, 700
Nitrogen can be quickly inhaled when more than DEG C.And after these pernicious gases are invaded in molten bath, the plasticity and toughness of welding point can all occur
Obvious change, strength of joint, hardness, plasticity and toughness decline, and overheat tendency is serious, joint serious embrittlement.Therefore, carrying out
During titanium alloy welding, to molten bath, molten drop and high-temperature region, either front or reverse side must all carry out reliable gas guarantor comprehensively
Shield.This is the key for ensureing titanium and its alloy welding quality.
And stainless steel is also a kind of very extensive metal material of application, either Aero-Space, shipbuilding, track are handed over
The every field such as logical, automobile, food and drink have great application, and the welding product of stainless steel structure is also more and more, structure
Become increasingly complex, stainless steel has the characteristics of very active chemical property, thermal conductivity is small, thermal capacity is big, stainless steel at high temperature
Also easily it is oxidized in welding, such as when stainless steel pipes weld, aoxidizing and by air pollution easily occurs in pipe inside weld
The problems such as, have a strong impact on welding quality.Stainless steel pipes must solve inside when welding using protective gas is filled inside pipeline
The high-temperature oxydation problem of weld seam.The guard method of traditional easy device, the welding quality of product is set to play pendulum, very
It is difficult to ensure the stable mass production of card product.
The content of the invention
It is an object of the invention to problem and shortage be present for above-mentioned, there is provided and it is a kind of practical, safe and reliable,
Workpiece non-oxidation, pore-free, the automatic welding of flawless can be realized, metal works welding quality and welding efficiency can be greatly improved
Vacuum argon filling welding jig and welding method.
The technical proposal of the invention is realized in this way：
Vacuum argon filling welding jig of the present invention, is characterized in：Including vacuum chamber, control system and it is placed in vacuum chamber
Welding robot, frock clamp, positioner and power buggy, walked wherein the bottom of the vacuum chamber is provided with for power buggy
Guide rail, the positioner is arranged on power buggy and draws disengaging vacuum chamber by power buggy, and on the positioner
Weld jig for welding circular weld or labyrinth workpiece is installed, the frock clamp is for welding straight weld
Piano type fixture, the control system mainly include PLC control system and the welding robot being connected with PLC control system control
System, power buggy servo-control system, hatch door control system, argon gas circulating filtration control system, security protection system, monitoring
System and illuminator, the source of welding current that the welding robot uses is TIG power supply.
Wherein, the positioner include frame, the position adjusting mechanism that is arranged in frame and with position adjusting mechanism phase
The fixture fixed disk of connection, the weld jig for welding circular weld or the welding of labyrinth workpiece are fixed on the folder
Have on fixed disk.Moreover, the position adjusting mechanism is single shaft or multiaxis governor motion, can be real by the position adjusting mechanism
The 360 degree of rotations or/and the upset of 0~180 degree of existing fixture fixed disk.
In order to ensure welding precision and the flexibility of welding, the artificial high-precision multiaxis welding robot of the welding robot
People.
In order that the intensity of vacuum chamber is high, bearing capacity is strong, the vacuum chamber uses Q245-R materials, stainless steel or structure
Steel is made.Moreover, the vacuum chamber is using structure made of I-steel.
In order to effectively save outside space, and operate flexible, simple and convenient, good airproof performance, the cabin of the vacuum chamber
Door is using hydraulic lifting upper-turn-type closing hatch door.Moreover, in order to ensure positive seal is good with vacuum leakproofness, the vacuum chamber
Hatch door the double sealing structure being combined is sealed with outer " O " shape using interior lip packing.
In order that the fixed form of welding robot is varied, can be adapted to use in different size of vacuum chamber, institute
Welding robot is stated to be fixed on the bottom surface of vacuum chamber or on top surface.
Vacuum argon filling welding method of the present invention, is characterized in comprising the following steps：
Step 1：The hatch door of vacuum chamber is opened, when carrying out straight weld welding, workpiece is directly placed into vacuum chamber and in vacuum chamber
It is assembled on frock clamp；When carrying out circular weld or labyrinth workpiece welds, positioner is removed by power buggy
Vacuum chamber, and determine the need for changing the weld jig on positioner according to Workpiece structure, if without changing, directly
Workpiece is assembled on weld jig, otherwise needs first to change weld jig, then carries out workpiece assembling, and after workpiece assembles,
Positioner is moved into vacuum chamber by power buggy；
Step 2：Welding robot test weld, the hatch door of vacuum chamber is closed after the completion of test weld, vacuum chamber is evacuated to and is not more than
50Pa, and applying argon gas are to 1.1~1.3 × 105Pa；
Step 3：Start the source of welding current, welding robot welding workpiece；
Step 4：After the completion of workpiece welding, vacuum chamber takes out argon gas, and is filled with air, and the hatch door of vacuum chamber is opened, and unloads work
Part, welding terminate.
The present invention compared with prior art, has following remarkable advantage：
1st, the present invention is welded using vacuum chamber, can obtain any surface finish, the weld seam of No oxidation discoloration；
2nd, the present invention is welded using robot automation, efficiently avoid the defects of manual unstability is brought；
3rd, the present invention is welded using vacuum chamber, and compared with routine is using protective cover, not only protecting effect is good, and operates more
It is easy, it is no longer necessary to the protective cover of particular design back of weld；
4th, for labyrinth weldment, often protective cover is difficult to be protected with weldering, causes the positive and negative of weld seam all easily to aoxidize,
Influence Weld Performance.Welded using vacuum argon filling of the present invention, efficiently solve this technical barrier, avoid metal material and exist
Influenceed by pernicious gas in welding process, so as to avoid the defects of weld seam produces stomata, oxidation, degradation problem, carried
High product quality；
5th, the invention belongs to automatic welding, compared with the manual welding of routine, welding quality is both improved, improves production again
Efficiency, and the present invention is especially suitable for the welding of the easily high-temperature oxydation metal material such as titanium alloy, stainless steel；
6th, the present invention using double design, can realize two parts and meanwhile into vacuum chamber weld, effectively save pumping with
Inflationtime, argon gas is both saved, improve efficiency again.
The present invention is further illustrated below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is the structural representation of vacuum chamber of the present invention.
Fig. 3 is connection stereogram of the positioner of the present invention with driving dolly.
Fig. 4 is connection side view of the positioner of the present invention with driving dolly.
Fig. 5 is the workflow diagram of the present invention.
Embodiment
As Figure 1-Figure 5, vacuum argon filling welding jig of the present invention, including vacuum chamber 1, control system and be placed in
Welding robot 2, frock clamp 3, positioner 4 and power buggy 5 in vacuum chamber 1.Wherein, the hatch door 11 of the vacuum chamber 1
Hatch door is closed using hydraulic lifting upper-turn-type, compared with the plug-type hatch door of routine, this kind of structure hatch door can effectively be saved outer
Portion space, and flexible, simple and convenient, good airproof performance is operated, and be to be combined using interior lip packing with outer " O " shape sealing
Double sealing structure, positive seal is good with vacuum leakproofness.The bottom of the vacuum chamber 1 is provided with walks for power buggy 5
Guide rail, the load of the positioner 4 is 1500Kg, and passes through the traction disengaging vacuum of power buggy 5 on the power buggy 5
Cabin 1, using positioner 4 and the one of power buggy 5, positioner is moved to outside vacuum chamber simultaneously with power buggy when loading and unloading part,
Facilitate the handling of part, be not limited by a space, while can ensure that assembly precision, stable welding quality.Moreover, the positioner 4
On weld jig for welding circular weld or labyrinth workpiece is installed, therefore positioner is versatile, not only may be used
The welding of barrel shape part is realized, is also applied for the welding of other types, shape and size product.Specifically, the positioner 4 wraps
Including rack 41, the position adjusting mechanism 42 being arranged in frame 41 and the fixture fixed disk being connected with position adjusting mechanism 42
43, the weld jig for welding circular weld or the welding of labyrinth workpiece is fixed on the fixture fixed disk 43.
And the position adjusting mechanism 42 is single shaft or multiaxis governor motion, it can realize that fixture is fixed by the position adjusting mechanism 42
The 360 degree of rotations or/and the upset of 0~180 degree of disk 43.That is, multiple structural forms can be installed by the positioner 4
Frock, for realizing the workpiece welding of various structures, a variety of welding manners, workpiece both may be at horizontality welding, also might be used
To be placed in plumbness welding.The power buggy 5 is by hitch frame, the power-driven mechanism being arranged on hitch frame and is arranged on
Hitch frame bottom simultaneously controls the movable pulley rotated to form by power-driven mechanism, and the positioner 4 is installed solid by frame 41
It is scheduled on hitch frame.The frock clamp 3 is the piano type fixture for welding straight weld and is arranged on the bottom surface of vacuum chamber 1
On, certain frock clamp 3 can also be arranged on power buggy and draw disengaging vacuum chamber, such vacuum chamber by power buggy
Bottom be also required to it is corresponding guide rail is installed, the workpiece that can realize length 1700mm by piano type fixture welds.The control
System mainly includes PLC control system and the welding robot control system being connected with PLC control system, power buggy servo control
System, hatch door control system, argon gas circulating filtration control system, security protection system, monitoring system and illuminator processed, wherein
Argon gas circulating filtration control system is made up of argon gas cyclic delivery system and filtering welding fume system, is carried out to vacuum chamber
During overall pressure release, argon gas is extracted into special container（Air accumulator）, so as to reusable argon gas, maximumlly reduce its consumption
Amount, correspondingly reduces welding cost.The source of welding current that the welding robot 2 uses can be achieved for high-frequency impulse TIG power supplys
The welding of a variety of alloys such as titanium alloy and other difficult wlding material, also suitable for the welding of thin-wall workpiece, and power supply has high frequency
Welding current modulation function, fusion penetration can additionally be improved by carrying out TIG welderings using focused nozzle, improved weldering speed, reduced welding deformation.This
Outside, the source of welding current that the welding robot 2 uses can also be general T IG power supplys.In order to ensure welding precision and welding
Flexibility, the welding robot 2 are high-precision multiaxis welding robot.Moreover, the welding robot 2 is fixed on vacuum chamber
On 1 bottom surface or on top surface, when using top surface installation, the artificial suspension type of welding robot, vacuum chamber space can be so saved, together
When operation it is flexible, the useful space of vacuum chamber is maximized, compact with seasonal space structure, effectively saving vacuumizes and applying argon gas
Time, and the compact input quantity that can reduce argon gas in space, effectively save cost.In addition, the vacuum chamber 1 uses Q245-R
Material or other structures steel, stainless steel material are made, certainly also can be according to operating pressure needs, using other high-strength steel materials
It is made.Moreover, the vacuum chamber 1 is using structure made of I-steel.Meanwhile the big I of vacuum chamber 1 is according to specific work
Part size is appropriately designed, and in the present embodiment, the volume of the vacuum chamber 1 is 30m3~45m3.Feelings are welded for the ease of observation
Condition, vacuum chamber 1 design four watch windows, also can increase or decrease watch window according to need of work certainly.
Welded, comprised the following steps using vacuum argon filling welding jig of the present invention：
Step 1：The hatch door 11 of vacuum chamber 1 is opened, when carrying out straight weld welding, workpiece is directly placed into vacuum chamber and in vacuum
It is assembled in cabin on frock clamp 3；It is when carrying out circular weld or labyrinth workpiece welds, positioner 4 is small by power
Car 5 removes vacuum chamber 1, and determines the need for changing the weld jig on positioner 4 according to Workpiece structure, if without more
Change, then directly workpiece is assembled on weld jig, otherwise need first to change weld jig, then carry out workpiece assembling, and workpiece
After assembling, positioner 4 is moved into vacuum chamber 1 by power buggy 5；
Step 2：The test weld of welding robot 2, repair part, after completing repair, the hatch door 11 of vacuum chamber 1 is closed, using taking out/fill
Gas system, vacuum chamber 1 is evacuated to no more than 50Pa（According to the quality requirement of welding workpiece, vacuum can be evacuated to less
In 10Pa, or other values）, and applying argon gas are to 1.1~1.3 × 105Pa；
Step 3：Start the source of welding current, using each related Control System, start vacuum chamber illuminator, argon gas circulating filtration system
The program that system and control system are write, the welding workpiece of welding robot 2；
Step 4：After the completion of workpiece welding, vacuum chamber 1 takes out argon gas, and is filled with air, and the hatch door 11 of vacuum chamber 1 is opened, unloading
Workpiece, welding terminate.
The present invention is described by embodiment, but is not limited the invention, with reference to description of the invention, institute
Other changes of disclosed embodiment, are such as readily apparent that, such change should belong to for the professional person of this area
Within the scope of the claims in the present invention limit.
Claims (10)
- A kind of 1. vacuum argon filling welding jig, it is characterised in that：Including vacuum chamber（1）, control system and be placed in vacuum chamber（1）It is interior Welding robot（2）, frock clamp（3）, positioner（4）And power buggy（5）, wherein the vacuum chamber（1）Bottom set It is equipped with and supplies power buggy（5）The guide rail of walking, the positioner（4）Installed in power buggy（5）Go up and pass through power buggy（5） Traction disengaging vacuum chamber（1）, and the positioner（4）On welding for welding circular weld or labyrinth workpiece is installed Fixture, the frock clamp（3）For the piano type fixture for welding straight weld, the control system mainly includes PLC and controlled System and the welding robot control system being connected with PLC control system, power buggy servo-control system, hatch door control system System, argon gas circulating filtration control system, security protection system, monitoring system and illuminator, the welding robot（2）Using The source of welding current be TIG power supplys.
- 2. vacuum argon filling welding jig according to claim 1, it is characterised in that：The positioner（4）Including frame （41）, be arranged on frame（41）On position adjusting mechanism（42）And and position adjusting mechanism（42）The fixture fixed disk being connected （43）, the fixture fixed disk is fixed on for welding the weld jig that circular weld or labyrinth workpiece weld（43） On.
- 3. vacuum argon filling welding jig according to claim 2, it is characterised in that：The position adjusting mechanism（42）For list Axle or multiaxis governor motion, pass through the position adjusting mechanism（42）Fixture fixed disk can be achieved（43）360 degree rotation or/and 0~180 degree is overturn.
- 4. vacuum argon filling welding jig according to claim 1, it is characterised in that：The welding robot（2）To be high-precision Spend multiaxis welding robot.
- 5. vacuum argon filling welding jig according to claim 1, it is characterised in that：The vacuum chamber（1）Using Q245-R Material, stainless steel or structural steel are made.
- 6. vacuum argon filling welding jig according to claim 1, it is characterised in that：The vacuum chamber（1）For using I-shaped Structure made of steel.
- 7. vacuum argon filling welding jig according to claim 1, it is characterised in that：The vacuum chamber（1）Hatch door（11） Hatch door is closed using hydraulic lifting upper-turn-type.
- 8. vacuum argon filling welding jig according to claim 1, it is characterised in that：The vacuum chamber（1）Hatch door（11） The double sealing structure being combined using interior lip packing with outer " O " shape sealing.
- 9. vacuum argon filling welding jig according to claim 1, it is characterised in that：The welding robot（2）It is fixed on Vacuum chamber（1）Bottom surface on or top surface on.
- 10. a kind of vacuum argon filling welding method, this method utilizes the welding jig as described in above-mentioned any claim, its feature It is to comprise the following steps：Step 1：Open vacuum chamber（1）Hatch door（11）, when carrying out straight weld welding, workpiece be directly placed into vacuum chamber and Frock clamp is assembled in vacuum chamber（3）On；When carrying out circular weld or labyrinth workpiece welds, by positioner（4）It is logical Cross power buggy（5）Remove vacuum chamber（1）, and determine the need for changing positioner according to Workpiece structure（4）On welding Fixture, if without changing, directly workpiece is assembled on weld jig, otherwise needs first to change weld jig, then carry out After workpiece assembles, and workpiece assembles, pass through power buggy（5）By positioner（4）Move into vacuum chamber（1）It is interior；Step 2：Welding robot（2）Test weld, vacuum chamber is closed after the completion of test weld（1）Hatch door（11）, by vacuum chamber（1）Take out Vacuum is to being not more than 50Pa, and applying argon gas are to 1.1~1.3 × 105Pa；Step 3：Start the source of welding current, welding robot（2）Welding workpiece；Step 4：After the completion of workpiece welding, vacuum chamber（1）Argon gas is taken out, and is filled with air, by vacuum chamber（1）Hatch door（11）Beat Open, unload workpiece, welding terminates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710968973.8A CN107866627A (en) | 2017-10-18 | 2017-10-18 | A kind of vacuum argon filling welding jig and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710968973.8A CN107866627A (en) | 2017-10-18 | 2017-10-18 | A kind of vacuum argon filling welding jig and method |
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| CN107866627A true CN107866627A (en) | 2018-04-03 |
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| CN201710968973.8A Pending CN107866627A (en) | 2017-10-18 | 2017-10-18 | A kind of vacuum argon filling welding jig and method |
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