CN205702848U - A kind of slab ultra-narrow gap laser filling wire welding is with servo-actuated gas shielded device - Google Patents
A kind of slab ultra-narrow gap laser filling wire welding is with servo-actuated gas shielded device Download PDFInfo
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- CN205702848U CN205702848U CN201620606351.1U CN201620606351U CN205702848U CN 205702848 U CN205702848 U CN 205702848U CN 201620606351 U CN201620606351 U CN 201620606351U CN 205702848 U CN205702848 U CN 205702848U
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Abstract
A kind of slab ultra-narrow gap laser filling wire welding is with servo-actuated gas shielded device; solve existing slab ultra-narrow gap laser filling wire welding gas shield welding unit protection effect instability and the deficiency of Full-automatic welding cannot be met; propose a kind of gas shield welding device height adaptive adjusting means height sensor and altitude mixture control motion combined, for thick plate structure ultra-narrow gap laser filling wire welding molten bath and weld seam gas shielded.
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 a kind of servo-actuated gas shielded device 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, and device is complicated, needs means to regulate, it is difficult to popularization and application in industry actual production；Scalable nozzle
Device (CN201310501123.9) is although can be adjusted protection gas jets casing length, but effectively range of accommodation is limited,
Need to manually regulate.
The multichannel laterally mode of supplying gas is used to suppress laser metal steam plumage and protect welding pool and high temperature welded seam area, and
It is incorporated into circulation of qi promoting by height sensor, servo motor and Programmable Logic Controller and protects the height adaptive control of welder, can expire
The demand of foot slab ultra-narrow gap laser filling wire welding gas shield welding servo-actuated to automatization device, currently there is not yet relevant report.
Utility model content
The purpose of this utility model is for heavy wall component full-automatic ultra-narrow gap laser filling wire welding equipment self adaptation
Altitude mixture control gas shield welding device, solve existing slab ultra-narrow gap laser filling wire welding gas shield welding unit protection effect unstable and
The deficiency of Full-automatic welding cannot be met, it is proposed that a kind of gas height sensor and altitude mixture control motion combined is protected
Welder height adaptive adjusting means, for thick plate structure ultra-narrow gap laser filling wire welding molten bath and weld seam gas shielded.
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
Servo-actuated gas shielded device, be provided be arranged on the gas shielded above welded piece drag cover, gas shielded drag on cover connect have regulation gas protect
Protecting the altitude mixture control motion dragging cover with the spacing of welded piece upper surface, altitude mixture control motion connects control
Altitude mixture control motion moves the Programmable Logic Controller of height, Programmable Logic Controller connects and has monitoring gas shielded to drag cover and quilt
The height sensor of the spacing of weldering workpiece surface, height sensor is arranged on gas shielded and drags on cover.
Altitude mixture control motion described in the utility model includes servomotor, servomotor and Programmable Logic Controller phase
Connect.
Gas shielded described in the utility model drags cover to include, and main protection gas interface, secondary protection gas interface, air-flow calmness sieve are (many
Layer copper mesh), main protection gas flow tube and secondary protection gas flow tube, main protection air-flow is through main protection gas interface, air-flow calmness sieve and main
Protection gas flow tube is blown into welded piece welding region, and the flow of main protection air-flow is 20 L/min～50L/min；Secondary protection gas
Flowing through secondary protection gas interface, air-flow calmness sieve and secondary protection gas flow tube and be blown into welded piece groove, the flow of secondary protection air-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.
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.
The sensitive surface of height sensor described in the utility model drags the air blowing face of cover concordant with gas shielded.
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, use height sensor to monitor gas shielded in real time and drag the distance between cover and welded piece upper surface, pass through servo
Motor and Programmable Logic Controller realize, to the height adaptive regulation of gas shielded device during slab ultra-narrow gap welding, replacing
The means regulative mode of existing multi-pass welding interlayer gas shielded device, improves welding production efficiency and welding process is stable
Property.
2, protection gas can effectively reduce turbulent flow through air-flow calmness sieve and air-flow copper pipe in short distance, improves protection air-flow
Deflection, 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
Metal vapors plumage at suppression laser aperture and protection welding pool, secondary protection air-flow is used for protecting overheated weld metal, carries
High welding protection effect.
3, 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 structural representation 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) a kind of slab ultra-narrow gap laser filling wire welding is with servo-actuated gas shielded device (as shown in Figure 1), by highly passing
Sensor 11 is monitored gas shielded and is dragged the distance between cover 7 and welded piece 1 upper surface, and Monitoring Data is inputted by sensor cable 12
Programmable Logic Controller 13；Programmable Logic Controller 13 controls servo motor 10 and drives gas shielded to drag cover to move up and down, it is achieved protect gas
Protect and drag the height adaptive of cover to regulate.
(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 to transport
Motivation structure 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, and height is adjusted
Pole 9 drives gas shielded to drag cover 7 to move；Gas shielded drags cover 7 to be bolted with height regulating rod 9, and air blowing face 701 is with to be welded
Workpiece 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 11
Sensitive surface flush, 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 30 L/min～50L/min；Secondary protection air-flow warp
Secondary protection gas interface 17, air-flow calmness sieve 18 and secondary protection gas flow tube 21 are blown into welded piece groove, flow be 20 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 (10)
1. slab ultra-narrow gap laser filling wire welding is with a servo-actuated gas shielded device, is provided with and is arranged on welded piece (1) top
Gas shielded drag cover (7), it is characterised in that: gas shielded drags the upper connection of cover (7) to have regulation gas shielded to drag cover (7) and welded piece
(1) the altitude mixture control motion (26) of the spacing of upper surface, the upper connection of altitude mixture control motion (26) has control height
The Programmable Logic Controller (13) of the mobile height of regulation motion (26), the upper connection of Programmable Logic Controller (13) has monitoring gas shielded
Dragging the height sensor (11) of cover (7) and the spacing of welded piece (1) upper surface, height sensor (11) is arranged on gas shielded
Drag on cover (7).
2. a kind of slab ultra-narrow gap laser filling wire welding servo-actuated gas shielded device, its feature as claimed in claim 1 exist
In: described altitude mixture control motion (26) includes servomotor (10), servomotor (10) and Programmable Logic Controller (13)
It is connected.
3. a kind of slab ultra-narrow gap laser filling wire welding servo-actuated gas shielded device, its feature as claimed in claim 1 exist
In: described gas shielded drags cover (7) to include main protection gas interface (16), secondary protection gas interface (17), air-flow calmness sieve (18), master
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) is blown into welded piece welding region, the flow of main protection air-flow (20) be 20 L/min～
50L/min；Secondary protection air-flow (22) is blown into through pair protection gas interface (17), air-flow calmness sieve (18) and secondary protection gas flow tube (21)
Welded piece groove, the flow of secondary protection air-flow (22) is 15 L/min～40L/min.
4. a kind of slab ultra-narrow gap laser filling wire welding servo-actuated gas shielded device, its feature as claimed in claim 3 exist
In: the flow of described main protection air-flow (20) is more than the flow of pair protection air-flow (22).
5. a kind of slab ultra-narrow gap laser filling wire welding servo-actuated gas shielded device, its feature as claimed in claim 3 exist
In: described main protection air-flow (20) and secondary protection air-flow (22) tilt to blow to welded piece (1).
6. a kind of slab ultra-narrow gap laser filling wire welding servo-actuated gas shielded device, its feature as claimed in claim 5 exist
In:
Described main protection air-flow (20) is identical with the angle of inclination of secondary protection air-flow (22).
7. a kind of slab ultra-narrow gap laser filling wire welding servo-actuated gas shielded device, its feature as claimed in claim 5 exist
In: described main protection air-flow (20) and secondary protection air-flow (22) tilt to welding direction.
8. a kind of slab ultra-narrow gap laser filling wire welding servo-actuated gas shielded device, its feature as claimed in claim 1 exist
The air blowing face (701) dragging cover (7) in: the sensitive surface of described height sensor (11) with gas shielded is concordant.
9. a kind of slab ultra-narrow gap laser filling wire welding servo-actuated gas shielded device, its feature as claimed in claim 1 exist
In: described gas shielded drags the air blowing face (701) of cover (7) concordant with the upper surface of welded piece (1).
10. a kind of slab ultra-narrow gap laser filling wire welding servo-actuated gas shielded device, its feature as claimed in claim 1 exist
In: during in 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。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620606351.1U CN205702848U (en) | 2016-06-21 | 2016-06-21 | A kind of slab ultra-narrow gap laser filling wire welding is with servo-actuated gas shielded device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620606351.1U CN205702848U (en) | 2016-06-21 | 2016-06-21 | A kind of slab ultra-narrow gap laser filling wire welding is with servo-actuated gas shielded device |
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| CN205702848U true CN205702848U (en) | 2016-11-23 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001921A (en) * | 2016-06-21 | 2016-10-12 | 中国船舶重工集团公司第七二五研究所 | Follow-up gas protection device for thick plate ultra-narrow-gap laser welding with filler wire |
| CN111299828A (en) * | 2019-11-27 | 2020-06-19 | 北京工业大学 | Thick plate ultra-narrow gap laser wire-filling thermal conduction welding method |
-
2016
- 2016-06-21 CN CN201620606351.1U patent/CN205702848U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001921A (en) * | 2016-06-21 | 2016-10-12 | 中国船舶重工集团公司第七二五研究所 | Follow-up gas protection device for thick plate ultra-narrow-gap laser welding with filler wire |
| CN111299828A (en) * | 2019-11-27 | 2020-06-19 | 北京工业大学 | Thick plate ultra-narrow gap laser wire-filling thermal conduction welding method |
| CN111299828B (en) * | 2019-11-27 | 2022-02-08 | 北京工业大学 | Thick plate ultra-narrow gap laser wire-filling thermal conduction welding method |
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| GR01 | Patent grant |