CN203791812U - Welding gun capable of adjusting extension length of contact tube automatically - Google Patents
Welding gun capable of adjusting extension length of contact tube automatically Download PDFInfo
- Publication number
- CN203791812U CN203791812U CN201320870694.5U CN201320870694U CN203791812U CN 203791812 U CN203791812 U CN 203791812U CN 201320870694 U CN201320870694 U CN 201320870694U CN 203791812 U CN203791812 U CN 203791812U
- Authority
- CN
- China
- Prior art keywords
- welding gun
- welding
- ignition tip
- contact tube
- executing agency
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Laser Beam Processing (AREA)
Abstract
The utility model discloses a welding gun capable of adjusting the extension length of a contact tube automatically. The welding gun is especially suitable for laser-arc hybrid welding and comprises a protection nozzle, a gas splitter, the contact tube, height sensors, a central processing unit and an executing mechanism. The gas splitter is provided with an exposed gas outlet hole and is prevented from sliding through the tightening force of the protection nozzle. The contact tube is flat and is connected with the gas splitter. The two symmetric height sensors are installed at the end of the contact tube and used for detecting the distance from the contact tube to the surface of a welding line. The central processing unit controls the executing mechanism to adjust extension and retraction of the contact tube according to signals collected by the height sensors. According to the welding gun, the distance from the bottom of the welding line to the contact tube can be detected through the height sensors, then the extension length of the contact tube can be adjusted automatically, dry extension of a welding wire can be kept within an appropriate range, an arc can exist stably in the laser-arc hybrid welding process, and finally high-quality welding of a thick plate is achieved.
Description
Technical field
The utility model belongs to materials processing technology field, is specifically related to a kind of welding gun for Laser-Arc Hybrid Welding, and this welding gun can regulate ignition tip extension elongation automatically, is particularly useful for slab narrow gap welding.
Background technology
The welding of slab is requisite critical process in naval vessel and nuclear facilities manufacture, oil and natural gas pipeline laying, power plant construction and various large-scale steel structure engineering-built process.The thickness of these facilities is very large, is limited to the restriction of laser peak power output, and single Laser Welding cannot complete the welding of large thickness slab under many circumstances well.Therefore, the method for laser-arc hybrid welding in industry becomes the first-selection of thick plates.This method can reduce required laser power on the one hand, thereby reduces the requirement to laser instrument; Bevelled size be can reduce on the other hand, thereby residual stress and the residual deformation of welding engineering amount and welding point reduced.But less groove size, can cause the rifle head of welding gun cannot enter groove inner side, for molten drop is smoothly transitted in weld seam bottom, have to increase the stem elongation of welding wire, add the attraction of groove sidewall to electric arc, make electric arc unstable, reduced welding quality.
Utility model content
The utility model provides a kind of welding gun that can automatically regulate ignition tip extension elongation, it is inner and according to the highly automated adjusting ignition tip extension elongation of weld seam bottom that object is to make welding gun can enter Narrow sloping-glot, thereby can when slab narrow gap welding, obtain high-quality welding point.
A kind of welding gun that can automatically regulate ignition tip extension elongation that the utility model provides, is characterized in that, this welding gun comprises protection nozzle, gas diverter, ignition tip, height sensor, central processing unit and executing agency; It is inner that wire convey soft pipe is positioned at welding gun straight tube, tight by lock ring hoop between the end of protection nozzle and welding gun straight tube, one end of gas diverter contacts with welding gun straight tube through protection nozzle, on the other end, have exposed venthole, gas diverter prevents landing by the clamping force of protection nozzle; Ignition tip is flat, is connected with gas diverter, and two height sensors along ignition tip axis symmetry are installed in ignition tip end, in order to detect the distance between it and face of weld; Executing agency is fixed on welding gun straight tube, and the output shaft of executing agency is connected with ignition tip, and central processing unit is connected with executing agency and the height sensor signal of telecommunication respectively.
As the improvement of technique scheme, described height sensor is GMR magnetic field sensor.
As the further improvement of technique scheme, the outside of described height sensor is disposed with magnetic masking layer and thermal shield.
The welding gun that the utility model provides can detect the distance between weld seam bottom and ignition tip by height sensor, thereby the length that automatically regulates resistance welding gun electric conducting nozzle to stretch out, guarantee that dry extension of electrode is in rational scope, make arc energy stable existence in Laser-Arc Hybrid Welding process, finally realize the high-quality welding of slab.
For general welding gun, the slab narrow clearance welding gun the utility model proposes has following various advantages:
(1) compare with the welding gun in common Laser-Arc Hybrid Welding, this welding gun can weld the sheet material of larger thickness.It is inner and can regulate extension elongation that ignition tip can stretch into groove, mean that required bevelled size is less, thereby suppressed to a great extent the generation of the defects such as sidewall does not merge,
(2) while welding slab, allow out the groove that size is less, reduce in a large number welding material and energy consumption, improved productivity ratio, greatly reduce residual stress and the residual deformation at welding point place.
(3) because ignition tip can regulate automatically, therefore the stem elongation of welding wire can be controlled in suitable scope all the time, make arc stability and exist, finally improve welding quality.
Accompanying drawing explanation
Fig. 1 is the front view of welding gun;
Fig. 2 is the left view of welding gun;
Fig. 3 is the first road welding of slab narrow gap laser photoelectric arc Combined Welding left view;
Fig. 4 is the follow-up welding left view of slab narrow gap laser photoelectric arc Combined Welding;
Fig. 5 is the first road welding of slab narrow gap laser photoelectric arc Combined Welding front view;
Fig. 6 is the follow-up welding front view of slab narrow gap laser photoelectric arc Combined Welding;
Fig. 7 is the scheme of installation of height sensor;
In figure, 1-wire convey soft pipe; 2-protection nozzle; 3-gas diverter; 4-ignition tip; 5,5 '-first, second height sensor; 6-welding wire; 7-protective gas; 8-workpiece to be welded; 9-weld seam; 10-welding gun straight tube; 11-molten bath; 12-laser beam; 13-central processing unit; 14-executing agency.
The specific embodiment:
The entered groove inside that the utility model provides also can regulate the conception of the narrow clearance welding gun of ignition tip extension elongation mainly to refer to automatically: for general Laser-Arc Hybrid Welding welding gun; being used in this narrow clearance welding gun makes to protect the coaxial cylindrical protective nozzle of gas and electric arc without ignition tip is wrapped, but ignition tip is outside exposed.The length that while determining the welding of first road according to actual groove size, ignition tip stretches out, regulates suitable shielding gas flow amount, and two sidewalls by groove block protection gas, thereby protect weld seam at the inner protective atmosphere that forms of groove.This ignition tip is flat, and automatically retractable can enter narrower groove inner.Two symmetrical height sensors of ignition tip end integrated installation, can automatically detect the distance between weld seam and ignition tip, only have when two sensors detect come to the same thing or differ in 0.5mm time just for the final flexible length of ignition tip that needs, can in the outside of height sensor, increase successively magnetic masking layer and thermal shield and reduce the impact of external disturbance on sensor simultaneously.Magnetic masking layer is coated in sensor outside, can adopt Metal Substrate B
4c/Pb composite shielding material, this material is with B
4c, Pb, the auxiliary component that adds are that raw material is successively processed and is prepared from by series of process; Thermal shield is that this material can adopt hollow ceramic microspheres at the outside heat-proof coating material that applies of magnetic masking layer, and its density is little, and thermal conductivity factor is low, the hollow structure of sealing, and thermal capacitance is high, suppresses heat conduction.Compact arranged case type hollow minute particle has formed one deck and heat has been had to the gas blanket of barriering effect, blocked " heat bridge " thus make coating there is good effect of heat insulation.Welding gun height sensor can be formed through special processes by magnetic susceptibility material GMR a little less than the high-tech of four grid, and portion's equipment mounted type integrated operational amplifier circuit, highly sensitive within it, fast response time, and antijamming capability is strong.In welding process, air-gap flux amount between this huge magnetic (GMR) electrical resistance welding gun and weld seam and changing, thereby cause that resistance or potential difference on GMR change, after central processing unit 13 is processed, obtain the variable quantity of welding gun and workpiece relative altitude position, and send control instruction to executing agency 14, thereby the length of in time stretching out by adjustment ignition tip is adjusted the relative position of vertical direction between welding gun and weld seam, guarantee that the stem elongation of welding wire is in suitable scope, arc stability is existed.
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described further.At this, it should be noted that, for the explanation of these embodiments, be used for helping to understand the utility model, but do not form restriction of the present utility model.In addition,, in each embodiment of described the utility model, involved technical characterictic just can not combine mutually as long as do not form each other conflict.
Fig. 1 and Fig. 2 have shown respectively front view and the left view of conceiving designed narrow clearance welding gun according to the utility model.As shown in Figure 1, 2, according to the welding gun of the utility model design, comprise protection nozzle 2, gas diverter 3, ignition tip 4, height sensor 5, central processing unit 13 and executing agency 14.Wire convey soft pipe 1 is inner at welding gun straight tube, tight by lock ring hoop between one end of protection nozzle 2 and welding gun straight tube, and one end of gas diverter 3 contacts with welding gun straight tube through protection nozzle 2, has exposed venthole on the other end.Gas diverter 3 prevents landing by the clamping force of protection nozzle.Ignition tip 4 is flat, is connected with gas diverter 3, and automatically retractable.In ignition tip 4 ends, two height sensors 5,5 ' along ignition tip axis symmetry are installed, in order to detect the distance between it and face of weld.Executing agency 14 is fixed on welding gun straight tube, and the output shaft of executing agency 14 is connected with ignition tip 4, to regulate elongation and the contraction of ignition tip 4.Central processing unit 13 is connected with executing agency 14 and height sensor 5 signals of telecommunication respectively, according to the collection signal of height sensor, controls executing agency to regulate elongation and the contraction of ignition tip.
Executing agency 14 can adopt the realizations such as motor.
Fig. 3, Fig. 5 is respectively slab narrow gap laser photoelectric arc Combined Welding first welding schematic diagram left view and front view.As shown in Figure 3, the protection gas 7 being sprayed by gas diverter 3 is blocked by groove two side, at the inner protective atmosphere that forms of groove, protects weld seam; As shown in Figure 5, the protection gas 7 that the molten bath 11 that Combined Welding forms is blocked by groove two side covers, thus protection weld seam.Fig. 4, Fig. 6 is respectively slab narrow gap laser photoelectric arc Combined Welding follow-up welding schematic diagram left view and front view.After first has welded, in follow-up welding process, as shown in Figure 4, by two height sensors 5 of welding gun end symmetric arrays, detected the variation of weld seam 9 height, signal to be detected and pass to central processing unit 13 by signal transmission line, central processing unit 13 sends instruction to executing agency 14, executing agency 14 regulates the extension elongation of ignition tip 4 automatically by output shaft, make welding wire 6 stem elongations in suitable scope, Fig. 6 is the front view of the follow-up welding schematic diagram of slab narrow gap laser photoelectric arc Combined Welding.
Fig. 7 is installation of sensors schematic diagram, and the first height sensor 5 and the second height sensor 5 ' symmetry are arranged on ignition tip 4, the GMR magnetic field sensor that height sensor can adopt huge magnetic (GMR) resistance material to process.Air-gap flux amount between this electrical resistance welding gun and weld seam 9 and changing, changes by the resistance on GMR or potential difference the variation that obtains welding gun and weld seam relative altitude position.
The above is preferred embodiment of the present utility model, but the utility model should not be confined to the disclosed content of this embodiment and accompanying drawing.So every, do not depart from the equivalence completing under spirit disclosed in the utility model or revise, all falling into the scope of the utility model protection.
Claims (4)
1. can automatically regulate a welding gun for ignition tip extension elongation, it is characterized in that, this welding gun comprises protection nozzle, gas diverter, ignition tip, height sensor, central processing unit and executing agency; It is inner that wire convey soft pipe is positioned at welding gun straight tube, tight by lock ring hoop between the end of protection nozzle and welding gun straight tube, one end of gas diverter contacts with welding gun straight tube through protection nozzle, on the other end, have exposed venthole, gas diverter prevents landing by the clamping force of protection nozzle; Ignition tip is flat, is connected with gas diverter, and two height sensors along ignition tip axis symmetry are installed in ignition tip end, in order to detect the distance between it and face of weld; Executing agency is fixed on welding gun straight tube, and the output shaft of executing agency is connected with ignition tip, and central processing unit is connected with executing agency and the height sensor signal of telecommunication respectively.
2. the welding gun that can automatically regulate ignition tip extension elongation according to claim 1, is characterized in that, described height sensor is GMR magnetic field sensor.
3. the welding gun that can automatically regulate ignition tip extension elongation according to claim 1 and 2, is characterized in that, the outside of described height sensor is disposed with magnetic masking layer and thermal shield.
4. the welding gun that can automatically regulate ignition tip extension elongation according to claim 1 and 2, is characterized in that, described executing agency is motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320870694.5U CN203791812U (en) | 2013-12-26 | 2013-12-26 | Welding gun capable of adjusting extension length of contact tube automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320870694.5U CN203791812U (en) | 2013-12-26 | 2013-12-26 | Welding gun capable of adjusting extension length of contact tube automatically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203791812U true CN203791812U (en) | 2014-08-27 |
Family
ID=51374081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320870694.5U Withdrawn - After Issue CN203791812U (en) | 2013-12-26 | 2013-12-26 | Welding gun capable of adjusting extension length of contact tube automatically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203791812U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103737163A (en) * | 2013-12-26 | 2014-04-23 | 华中科技大学 | Welding gun capable of automatically adjusting extending length of conductive nozzle used for narrow gap welding |
| CN104759745A (en) * | 2015-04-10 | 2015-07-08 | 汪会义 | CO2 gas shielded welding gun |
| CN110296822A (en) * | 2019-07-16 | 2019-10-01 | 常州特尔玛枪嘴有限公司 | A kind of welding gun protection air-flow amount detecting device and detection method |
| CN114147349A (en) * | 2021-11-17 | 2022-03-08 | 渤海造船厂集团有限公司 | Narrow-gap laser-TIG (tungsten inert gas) hybrid welding gas protection device and method |
-
2013
- 2013-12-26 CN CN201320870694.5U patent/CN203791812U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103737163A (en) * | 2013-12-26 | 2014-04-23 | 华中科技大学 | Welding gun capable of automatically adjusting extending length of conductive nozzle used for narrow gap welding |
| CN103737163B (en) * | 2013-12-26 | 2016-06-01 | 华中科技大学 | A kind of welding gun that can automatically regulate conductive nozzle extrusion for narrow gap welding |
| CN104759745A (en) * | 2015-04-10 | 2015-07-08 | 汪会义 | CO2 gas shielded welding gun |
| CN110296822A (en) * | 2019-07-16 | 2019-10-01 | 常州特尔玛枪嘴有限公司 | A kind of welding gun protection air-flow amount detecting device and detection method |
| CN110296822B (en) * | 2019-07-16 | 2024-03-26 | 常州特尔玛科技股份有限公司 | Welding gun protection air flow detection device and detection method |
| CN114147349A (en) * | 2021-11-17 | 2022-03-08 | 渤海造船厂集团有限公司 | Narrow-gap laser-TIG (tungsten inert gas) hybrid welding gas protection device and method |
| CN114147349B (en) * | 2021-11-17 | 2024-02-20 | 渤海造船厂集团有限公司 | Narrow-gap laser-TIG (tungsten inert gas) composite welding gas protection device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203791812U (en) | Welding gun capable of adjusting extension length of contact tube automatically | |
| CN107824962B (en) | Double-layer drainage device for underwater laser cladding and underwater laser-electric arc hybrid welding | |
| CN104244557A (en) | Atmosphere protection coaxial powder feeding plasma gun | |
| CN103602941B (en) | A kind of ferrite conductive coating and preparation method | |
| CN101862886A (en) | Hot wire consumable electrode gas protection welding method and realization device thereof | |
| CN105803381B (en) | A kind of high-temp strain spraying method based on foil gauge installation | |
| CN103737163A (en) | Welding gun capable of automatically adjusting extending length of conductive nozzle used for narrow gap welding | |
| CN102151957B (en) | Gas molten pool coupling active welding method | |
| CN104868882B (en) | A kind of electric pulse generator for producing fast leading edge and high voltage pulse square wave | |
| CN105195875A (en) | Welding gun of lockhole effect TIG deep penetration welding | |
| CN104551391A (en) | Laser-enhanced underwater GMAW droplet transfer control method | |
| CN206574627U (en) | A kind of accurate glue dispensing device of vacuum tube for vacuum circuit breaker | |
| CN100482396C (en) | Microbeam plasma arc scanning type weld seam tracking sensor | |
| CN105445526B (en) | The measurement structure of single cable insulation leakage current under a kind of service condition | |
| Zhang et al. | Physics characteristic of coupling arc of twin-tungsten TIG welding | |
| CN104493343A (en) | Automaticsubmerged arc weldingmethod for circumferential weld of large-diameter thin-wall workpiece | |
| CN103715919A (en) | Arc power supply system and control method thereof | |
| CN104439647A (en) | TIG welding double-layer air flow protection device for ferrite steel and welding method | |
| CN111215729A (en) | Welding process electric field on-line monitoring device | |
| CN105112585A (en) | Blast furnace top steel ring mounting structure and mounting method thereof | |
| CN102000904B (en) | Device and method for improving hardness of submerged-arc surfacing layer | |
| CN203900716U (en) | Lock hole effect TIG deep penetration welding gun | |
| CN110653463B (en) | Method for measuring arc deflection in stud welding process in real time | |
| CN101745730A (en) | Method for variable polarity plasma arc welding of magnesium alloy plate with filler metal | |
| CN109530872A (en) | A kind of 120mm slab and 24mm plate welding deformation controlling method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140827 Effective date of abandoning: 20160601 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |