CN205702849U - A kind of gas shielded device of slab ultra-narrow gap laser filling wire welding - Google Patents
A kind of gas shielded device of slab ultra-narrow gap laser filling wire welding Download PDFInfo
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- CN205702849U CN205702849U CN201620606352.6U CN201620606352U CN205702849U CN 205702849 U CN205702849 U CN 205702849U CN 201620606352 U CN201620606352 U CN 201620606352U CN 205702849 U CN205702849 U CN 205702849U
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- welding
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Abstract
A kind of gas shielded device of slab ultra-narrow gap laser filling wire welding, be provided be arranged on welded piece (1) top gas shielded drag cover (7), it is characterized in that: described gas shielded drags cover (7) to include main protection gas interface (16), secondary protection gas interface (17), air-flow calmness sieve (18), main protection gas flow tube (19) and secondary protection gas flow tube (21), main protection air-flow (20) is through main protection gas interface (16), air-flow calmness sieve (18) and main protection gas flow tube (19) are blown into welded piece welding region, the flow of main protection air-flow (20) is 20 L/min～50L/min；Secondary protection air-flow (22) is blown into welded piece groove through pair protection gas interface (17), air-flow calmness sieve (18) and secondary protection gas flow tube (21), and the flow of secondary protection air-flow (22) is 15 L/min～40L/min.This device uses main protection gas flow tube and secondary protection gas flow tube to solve existing slab ultra-narrow gap laser filling wire welding gas shield welding unit protection effect instability problem.
Description
Technical field
This utility model relates to technical field of laser processing, belongs to laser filling wire welding molten bath and weld metal gas shielded dress
Put, particularly relate to the gas shielded device of a kind of slab ultra-narrow gap laser filling wire welding.
Background technology
Thick plates structure has a wide range of applications, for routine in fields such as shipbuilding, ocean engineering, nuclear power generating equipments
During the thick plates of 30mm left and right thickness, groove gap be 8mm～below 10mm be narrow gap welding, below 5mm is between ultra-narrow
Gap is welded.Ultra-narrow gap laser filling wire welding refers to that using laser is thermal source, and welding wire is that a kind of ultra-narrow gap of packing material is many
Layer multi-pass welding method, has the advantages such as heat input is low, welding deformation is little.Owing to groove is deep and narrow, welding gas shield welding device without
Method stretches into inside groove, high to protection air-flow stiffness requirement, and requires gas shield welding device and workpiece during multi-layer multi-pass welding
Apparent height keeps consistent, and existing common gas shield welding device cannot meet requirement.Although researcher successively utility model both at home and abroad
Laterally supply gas and the servo-actuated guard method of weld seam of air-breathing and device (CN201410608433) and scalable spray nozzle device
(CN201310501123.9) narrow gap welding gas shield welding device, but all there is respective limitation: laterally supply gas and air-breathing
Weld seam follow-up protector (CN201410608433) combined by side blowing and inspiratory phase, although can be by weld fumes
Move apart weld groove, and suppress the plasma shielding action to laser, but be easily caused welding region protective gas and produce turbulent flow, shadow
Ring weld seam protection effect.
Utility model content
The purpose of this utility model is for heavy wall component full-automatic ultra-narrow gap laser filling wire welding equipment gas shield welding
Device, solves existing slab ultra-narrow gap laser filling wire welding gas shield welding unit protection effect instability problem, it is proposed that a kind of
For thick plate structure ultra-narrow gap laser filling wire welding molten bath and weld seam gas shielded device.
For realizing above-mentioned technical purpose, be the technical scheme is that a kind of slab ultra-narrow gap laser filling wire welding is used
Gas shielded device, be i.e. arranged on the gas shielded above welded piece drag cover, described gas shielded to drag cover to include main protection gas connects
Mouth, secondary protection gas interface, air-flow calmness sieve (multiple layer of copper silk screen), main protection gas flow tube and pair protect gas flow tube, main protection air-flow
It is blown into welded piece welding region through main protection gas interface, air-flow calmness sieve and main protection gas flow tube, suppresses laser metal steam
Plumage, protects welding pool, and the flow of main protection air-flow is 20 L/min～50L/min；Secondary protection air-flow connects through pair protection gas
Mouth, air-flow calmness sieve and secondary protection gas flow tube are blown into welded piece welding region, protect overheated weld metal, pair to protect air-flow
Flow is 15 L/min～40L/min.
The flow of main protection air-flow described in the utility model is more than the flow of pair protection air-flow.
Main protection air-flow described in the utility model and secondary protection air-flow tilt to blow to welded piece welding region.
Main protection air-flow described in the utility model is identical with the angle of inclination of secondary protection air-flow.
Main protection air-flow described in the utility model and secondary protection air-flow tilt to welding direction.
Gas shielded described in the utility model drags the air blowing face of cover concordant with the upper surface of welded piece.
This utility model welding time, described gas shielded drag between the air blowing face of cover and the upper surface of welded piece away from
From for 3mm-10mm.
The beneficial effects of the utility model are:
1, protection gas can effectively reduce turbulent flow through air-flow calmness sieve and gas flow tube in short distance, improves protection air-flow very
Degree, can realize the effective protection to molten bath；Gas shielded drags cover to use major and minor protection airflow design scheme, and main protection air-flow is used for
Suppression metal vapors plumage and protection welding pool, secondary protection air-flow is used for protecting weld metal, improves welding protection effect.
2, main protection air-flow and secondary protection air-flow tilt to blow to welded piece welding region, and this kind of air-flow is on welded piece slope
Mouth is internally formed laminar flow, further increases protected effect.
Accompanying drawing explanation
Fig. 1 is use status architecture schematic diagram of the present utility model；
Fig. 2 is the structural representation that this utility model gas shielded drags cover；
Fig. 3 be Fig. 2 look up structural representation；
Fig. 4 is the structural representation of this utility model altitude mixture control motion；
Fig. 5 is this utility model altitude mixture control motion type of drive schematic diagram；
In figure: 1 is welded piece；2 is filler pass；3 is laser beam；4 is ignition tip；5 is filler wire；6 is flange；
7 drag cover for gas shielded；701 is air blowing face；8 is electronic controlled height adjustment；9 is height regulating rod；10 is servo motor；11 is height
Sensor；12 is sensor cable；13 is Programmable Logic Controller；14 is external control cable；15 control cable for servo motor；
16 is main protection gas interface；17 is secondary protection gas interface；18 sieve for air-flow calmness；19 is main protection gas flow tube；20 is main protection
Air-flow；21 is secondary protection gas flow tube；22 is secondary protection air-flow, and 23 is height adjuster pedestal；24 is slide rail bearing；25 for connecting
Bolt；26, altitude mixture control motion.
Detailed description of the invention
Main utility model content:
(1) the gas shielded device (as shown in Figure 1) of a kind of slab ultra-narrow gap laser filling wire welding, passes through highly sensing
Device 11 is monitored gas shielded and is dragged the distance between cover 7 and welded piece 1 upper surface, and Monitoring Data can by sensor cable 12 input
Programmable controller 13；Programmable Logic Controller 13 controls servo motor 10 and drives gas shielded to drag cover 7 to move up and down, it is achieved to gas shielded
The height adaptive dragging cover 7 regulates.
(2) this device is made up of components described below: flange 6, gas shielded drag cover 7, electronic controlled height adjustment 8, height regulating rod 9,
Servo motor 10, height sensor 11, sensor cable 12, Programmable Logic Controller 13, external control cable 14 and servo motor
Control cable 15.Flange 6 is connected with welding gun or other external device (ED) for gas shielded device；Gas shielded drags the altitude mixture control of cover 7
Motion 26 is made up of electronic controlled height adjustment 8, height regulating rod 9 and servo motor 10, and electronic controlled height adjustment 8 is motionless, highly
Adjusting rod 9 drives gas shielded to drag cover 7 to move；Gas shielded drags cover 7 to be bolted with height regulating rod 9, air blowing face 701 with treat
Welder's part is parallel；Height sensor 11 is bolted on gas shielded and drags the both sides of cover 7, air blowing face 701 and height sensor
The sensitive surface of 11 flushes, it is ensured that pin-point accuracy during sensing.
(3) Programmable Logic Controller 13 controls cable 15 by sensor cable 12, external control cable 14 and servo motor
Connect respectively at height sensor 11, external control system and servo motor 10.Wherein external control system (such as robot) leads to
Cross outside electric control cable 14 and control startup and the closedown of Programmable Logic Controller 13: when welding process starts, open Programmable Logic Controller
13, it is achieved gas shielded drags the Automatic adjusument of cover height；After welding process terminates, closing Programmable Logic Controller 13, gas shielded drags
Cover returns initial position (highly highest point).
(4) connection of height regulating rod 9 and electronic controlled height adjustment 8 is as shown in Figure 4.Wherein electronic controlled height adjustment 8 is by height
Actuator pedestal 23, slide rail bearing 24 connect composition by connecting bolt 25.The sheathed height regulating rod of height adjuster seat 23 9
On, the end face not being fastened on height regulating rod 9 is fixed on height adjuster pedestal 23 by connecting bolt 25 by slide rail bearing 24
On, height regulating rod 9 and slide rail bearing 24 are typical linear guide rail structure, and the cross section of height regulating rod 9 is I shape, with it
The slide rail bearing 24 matched is fastened on height regulating rod 9, can slide up and down along height regulating rod 9.
The connection of height regulating rod 9 and servo motor 10 is as it is shown in figure 5, be gear & rack structure.Servo motor 10 rotates
Drive height regulating rod 9 slide rail bearing 24 along electronic controlled height adjustment 8 to move up and down, thus realize altitude mixture control.
(5) when height sensor 11 monitor value is more than zero position value, Programmable Logic Controller 13 drives servo motor 10
Height regulating rod 9 is driven to move downward along electronic controlled height adjustment 8, until monitor value is equal with zero position value；Otherwise, when height
When sensor 11 monitor value is less than zero position value, Programmable Logic Controller 13 drives servo motor 10 to drive height regulating rod 9 edge
Electronic controlled height adjustment 8 moves upward, until monitor value is equal with zero position value.
(6) gas shielded drags cover 7 height adjustment range to be 0mm～110mm, degree of regulation 0.5mm, response time 0.1s；Can
The response time of programmable controller 13 is 0.1s；Certainty of measurement 0.1mm of height sensor；Gas shielded drags cover 7 and welded piece 1
The distance of upper surface is 3mm～10mm.
(7) gas shielded drags cover structure as shown in Figure 2: dragging cover front portion is main protection air-flow, be used for suppressing metal vapors plumage and
Protection molten bath；Rear portion is secondary protection air-flow, is used for protecting weld seam；Main protection air-flow is through main protection gas interface 16, air-flow calmness sieve
18 and main protection gas flow tube 19 be blown into welded piece welding region, flow is 20 L/min～50L/min；Secondary protection air-flow warp
Secondary protection gas interface 17, air-flow calmness sieve 18 and secondary main protection gas flow tube 21 are blown into welded piece groove, and flow is 15 L/min
～40L/min, main protection gas flow tube 19 and secondary protection gas flow tube 21 are copper pipe.
(8) gas shielded drags the major and minor air-flow of cover to blow to welded piece upper surface with the form tilted, its angle phase tilted
With, and tilting (as shown in Figure 2) to welding direction simultaneously, air-flow is 30-80 ° with the angle of welded piece upper surface, and employing is inclined
Oblique form carries out gas shielded, can strengthen the flow of major and minor air-flow, even if flow is big, also will not produce turbulent flow.
Using this utility model gas shield welding device to carry out the narrow gap laser light filler wire welding of high-strength steel slab, capital equipment is
Robotic laser's filler wire welding system and gas shield welding device described in the utility model.Detailed description of the invention is as follows:
(1) gas shielded drags cover initial position and zero position: when height adaptive adjusting means is closed, and gas is protected
Weldering drags cover to be in initial position, i.e. gas shield welding drags the extreme higher position of cover；Gas shielded drags at cover and welded piece upper surface distance 5mm
The zero-bit of cover is dragged for gas shielded.
(2) backing run welding: robot runs pause motion to backing run starting the arc position, by external control electricity
Cable takes motor to private and sends unlatching signal, and height adaptive adjusting means proceeds by gas shielded and drags the monitoring of cover height and self adaptation
Regulation.Gas shield welding is dragged and is covered on private and take and move downwardly to away from welded piece upper surface 5mm along electronic controlled height adjustment under the driving of motor
(arranging value) place, Programmable Logic Controller starts welding to robot feedback signal, robot.After backing run receives arc, robot
Pause motion, sends shutdown signal by external control cable to Programmable Logic Controller, and Programmable Logic Controller drives servo motor
Gas shielded drag cover move to initial position along height regulating rod and lock.
(3) filler pass welding: robot runs pause motion to filler pass starting the arc position, by external control electricity
Cable takes motor to private and sends unlatching signal, and height adaptive adjusting means proceeds by gas shielded and drags the monitoring of cover height and self adaptation
Regulation.When concrete regulation process is welded with backing run, gas shield welding drags cover altitude mixture control identical.
Claims (7)
1. a gas shielded device for slab ultra-narrow gap laser filling wire welding, is provided with and is arranged on welded piece (1) top
Gas shielded drags cover (7), it is characterised in that: described gas shielded drags cover (7) to include main protection gas interface (16), secondary protection gas interface
(17), air-flow calmness sieve (18), main protection gas flow tube (19) and secondary protect gas flow tube (21), main protection air-flow (20) is through main protection
Gas interface (16), air-flow calmness sieve (18) and main protection gas flow tube (19) are blown into welded piece welding region, main protection air-flow
(20) flow is 20 L/min～50L/min；Secondary protection air-flow (22) is through pair protection gas interface (17), air-flow calmness sieve
(18) and secondary protection gas flow tube (21) is blown into welded piece groove, the flow of secondary protection air-flow (22) is 15 L/min～40L/
min。
The gas shielded device of a kind of slab ultra-narrow gap laser filling wire welding the most as claimed in claim 1, it is characterised in that:
The flow of described main protection air-flow (20) is more than the flow of pair protection air-flow (22).
The gas shielded device of a kind of slab ultra-narrow gap laser filling wire welding the most as claimed in claim 1, it is characterised in that:
Described main protection air-flow (20) and secondary protection air-flow (22) tilt to blow to welded piece (1).
The gas shielded device of a kind of slab ultra-narrow gap laser filling wire welding the most as claimed in claim 1, it is characterised in that:
Described main protection air-flow (20) is identical with the angle of inclination of secondary protection air-flow (22).
The gas shielded device of a kind of slab ultra-narrow gap laser filling wire welding the most as claimed in claim 1, it is characterised in that:
Described main protection air-flow (20) and secondary protection air-flow (22) tilt to welding direction.
The gas shielded device of a kind of slab ultra-narrow gap laser filling wire welding the most as claimed in claim 1, it is characterised in that:
Described gas shielded drags the air blowing face (701) of cover (7) concordant with the upper surface of welded piece (1).
The gas shielded device of a kind of slab ultra-narrow gap laser filling wire welding the most as claimed in claim 1, it is characterised in that:
When welding, described gas shielded drags the distance between the air blowing face (701) of cover (7) and the upper surface of welded piece (1) to be
3mm-10mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620606352.6U CN205702849U (en) | 2016-06-21 | 2016-06-21 | A kind of gas shielded device of slab ultra-narrow gap laser filling wire welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620606352.6U CN205702849U (en) | 2016-06-21 | 2016-06-21 | A kind of gas shielded device of slab ultra-narrow gap laser filling wire welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205702849U true CN205702849U (en) | 2016-11-23 |
Family
ID=57314948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620606352.6U Expired - Fee Related CN205702849U (en) | 2016-06-21 | 2016-06-21 | A kind of gas shielded device of slab ultra-narrow gap laser filling wire welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205702849U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392319A (en) * | 2016-06-21 | 2017-02-15 | 中国船舶重工集团公司第七二五研究所 | Gas shielded device for thick plate ultra-narrow interval wire filling laser welding |
-
2016
- 2016-06-21 CN CN201620606352.6U patent/CN205702849U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392319A (en) * | 2016-06-21 | 2017-02-15 | 中国船舶重工集团公司第七二五研究所 | Gas shielded device for thick plate ultra-narrow interval wire filling laser welding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20210621 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |