CN209206673U - A kind of thin plate curved arc part overlap joint continuous welding device - Google Patents
A kind of thin plate curved arc part overlap joint continuous welding device Download PDFInfo
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- CN209206673U CN209206673U CN201821819117.2U CN201821819117U CN209206673U CN 209206673 U CN209206673 U CN 209206673U CN 201821819117 U CN201821819117 U CN 201821819117U CN 209206673 U CN209206673 U CN 209206673U
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- 238000003466 welding Methods 0.000 title claims abstract description 161
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Abstract
The utility model relates to automobile skin welder field more particularly to a kind of thin plate curved arc parts to overlap continuous welding device, suitable for the automatic welding of covering vehicle top, it can be achieved that quality real-time monitoring in welding process.A kind of thin plate curved arc part overlap joint continuous welding device, including rack, welding tractor and controller, girder is arranged in the rack, the welding tractor is slidably connected with girder level, welding gun is arranged in the welding tractor, detection device is arranged in the welding gun, and the detection device connects controller, the controller connecting welding trolley.Welding gun is welded using gas shield welding mode, and detection device is monitored by the outer dimension to weld seam, can find the quality problems occurred in welding in real time, and be adjusted by controller.
Description
Technical field
The utility model relates to automobile skin welder field more particularly to a kind of continuous welding of thin plate curved arc part overlap joint
Device.
Background technique
Metal plate is be unable to do without as all kinds of light-duty, the heavy-duty machinery manufacturing enterprises based on being machined, container industry
Every production activity, wherein maximum with the yield of sheet member processing and quantity.With automobile (light-duty, passenger car, car it is overcoating
Cover piece) production for, 85% or more of the total vehicle body of quantity Zhan of thin plate (2.0mm or less) used, thus solve thin plate plus
Work technique, production method become the major subjects of automobile production, manufacture.
The structure of bus roof outer assembly is the top covering of outside covering one formable layer of welding of roof frame assembly, material
For ST12 cold-rolled steel sheet, with a thickness of 1.0mm, surface slightly applies antirust oil.Because width reaches 3.5 meters after the covering expansion of top, length
6-13 meters, since individual roll bending width is not achieved 3.5 meters, realization can be spliced in width direction.Therefore most at present
Bus coating enterprise uses width to overlap soldering for 1.5 meters of steel plates below and forms, general using 3 pieces of (the pressure left tops of arc with muscle
Side skin, covering in the top with muscle press right top side covering of the arc with muscle), there are 2 longitudinal seams, length and covering length in centre
It is identical.
The implementation of this overlap joint welding structure has 4 kinds: 1. to use the semi-automatic CO2 gas shielded arc welding of manual operations (following
Abbreviation gas shield welding) welding gun, weld seam is fully welded；2. carrying out spot welding using large-sized gantry covering spot-welding equipment；3. using seam weld
Equipment carries out seam weld；4. welding robot welds.
Above-mentioned 4 kinds of welding procedures have disadvantage:
1. advantage is less investment using gas shield welding technique hand-manipulated, construction is flexible, to the position precision and patch of top covering
It is right as long as increasing personnel, to improve efficiency almost without requiring, and can side construction frontier inspection look into, due to thin plate pressure arc,
In the forming process of roller side, edge has played wave transformation, when overlap welding, must compress be compacted this 2 layers of coverings after could weld, and
Artificial weldering can easily solve this problem.The disadvantage is that welding quality is inconsistent, to the technical ability, physical strength, energy of welder require compared with
Height, seam weld height, stomata, slag inclusion, burn-through phenomenon happen occasionally, such as check come out and in time repairing, roof will leak into
Water, welding operation for a long time, in addition operating environment is poor, the workload of worker becomes larger, and will generate fatigue, welding quality decline；
Welder is special work post, is influenced by human resources and operating environment, and later welder is fewer and fewer, it is desirable that wage increasingly
Height, recruitment cost are also high；Production technology intelligence degree is low；
2. carrying out spot welding using large-sized gantry covering spot-welding equipment, spot-welding technology, which refers to, is assembled into lap joint for workpiece,
And compress between electrodes, utilize low-voltage, high current, short time, resistance heat consumable electrode pressurized portion base metals, shape
At a kind of welding procedure of nugget solder joint, large-scale covering spot-welding equipment refers to, and mash welder is arranged on gantry frame, gantry frame
Frame is walked on the track that ground is arranged, the spot welding of mash welder spot welding head and the time, walking spacing (40mm) and the speed point that lift
The distance between soldering tip is controlled by 1 console, and advantage is to be able to achieve automation, and solder joint is uniform, and welding process is without artificial weldering
Connect operation.The disadvantage is that equipment investment is big (about 130 Yu Wanyuan of total price)；Point quality cannot be found in time, as spot welding head is burnt
Flat, deformation or electric current are unstable, are easy to generate pad not blow or burn-through, do not come out and repair in time, roof as checked
It will result in overlap welding layering to disengage, one amount of the protective layer failure of outside, will leak water inlet；Since spot welding spacing is 40mm,
The neutral gear that centre is not welded must be made up using the conductive spot welding glue of energy, if spot welding glue is too thick, influenced electric conductivity, be will cause spot welding not
It is real, if spot welding glue is too thin, leakproofness is influenced, this requirement is more demanding to operator's construction quality, meanwhile, increase spot welding glue per car
Vehicle sheet (10 meters about 180 yuan of vehicle or so)；Although the spacing of spot welding head is controlled by control system, there is no seam tracking system, when
In top when the storage position deviation 5mm or more of covering, spot welding head can deviate from weld seam, and the side weld spacing weld seam of covering is inclined in top
Far, outside tilts, and influences appearance and sealing, the other side of covering is that solder joint pressure is welded in top side covering in welded joints or only in top
On, cause covering solder skip in top.
3. carrying out seam weld using seam-welding equipment: seam weld is the cylindrical electrode that spot welding is replaced with a pair of of rolling disk electrode, with work
Part performs relative motion, to generate the welding method of the seal-weld of the mutual lapping of nugget one by one.Weldment be assembled into overlap joint or
Banjo fixing butt jointing is placed between two circular electrodes, and idler wheel pressurization weldment simultaneously rotates, and continuously or intermittently power transmission, forms a sequential welding
The electric resistance welding method of seam.Advantage is to be able to achieve continuous welding and automatic welding, must the disadvantage is that seam weld generates biggish heat
It must be using cooling water to cooling of electrode, otherwise easily by electrode melting.Because cooling system be it is open, be unable to closed loop collect circulation make
With a large amount of cooling water flows on weld seam and steel plate, and steel plate is caused to get rusty, and the cooling water for flowing to working site is more, will cause
Operation field is dirtier；Electricity consumption is larger, and energy consumption is higher；Welding quality is similar with spot welding, cannot be found in time, such as welding wheel electrode
It burns flat, deformation or electric current is unstable, it is extremely easy to generate pad not blow or burn-through, it such as checks and does not come out and repairing in time, vehicle
Top will result in overlap welding layering and disengage.This technique has faded away at present, is substituted by other techniques.
4. welding robot welds, advantage is accurate positioning, and welding quality is good, can all positon, automatic welding；The disadvantage is that
Disposably put into larger, influenced by car length, required track is longer, and the precision of track need it is higher, overall cost compared with
(need up to ten million investments) greatly.The technique combination laser welding, gas shield welding connect in Light-duty Vehicle, passenger car and related thick steel sheet
Or using more on component, small-sized plate, but do not answered in passenger-car roof-skin on longer, arc plate using few
Precedent.
A kind of top covered automatic spot welder is disclosed in the Chinese utility model patent of Patent No. ZL99224703.9,
It is welded Top Skin by way of gantry equipment and electric resistance welding.In addition, gantry mode cannot achieve two weld seams
Independent welding, electrode is all set on gantry at two, it is necessary to be moved forward or back, can not be solved since covering is put in top simultaneously
Set the problem of not positive bring spot welding position deviates, cover edges is caused to tilt.
A kind of skin automatic welding is disclosed in the Chinese utility model patent of Patent No. ZL201721082886.4
Welding system is respectively provided with a welder, it can be achieved that the two sides of covering are welded respectively which employs two independent crossbeams
It connects.In addition, this scheme can only be welded for the weld seam of roof two sides, if you need to weld covering in top, electrode need to use cantilever
Structure is stretched out, and is so then difficult to ensure that cantilever will not deform under the effect of gravity, also not can guarantee in welding process that overlapped two
Layer covering fits closely.
The mode that electric resistance welding has been all made of in above-mentioned patent welds Top Skin, due to the characteristic of electric resistance welding, nothing
Method finds the quality problems of welding in welding process in real time again.
Utility model content
The purpose of the utility model is to provide a kind of thin plate curved arc parts to overlap continuous welding device, covers suitable for vehicle top
The automatic welding of skin is, it can be achieved that quality real-time monitoring in welding process.
To achieve the goals above, the utility model provides the following technical solutions:
A kind of thin plate curved arc part overlap joint continuous welding device, including rack, girder, welding tractor and controller, the master
Beam is arranged on the rack, and the welding tractor is slidably connected with girder level, and welding gun is arranged in the welding tractor, and the welding gun is set
Detection device is set, the detection device connects controller, the controller connecting welding trolley.Welding gun is protected using gas
Weldering mode is welded, and detection device can find that the quality occurred in welding is asked by being monitored to weld seam in real time
Topic, and be adjusted by controller.Weld seam detection mode is mainly to detect the position of weld seam.
Preferably, main slide unit is arranged in the rack, and the main slide unit is slidably connected with rack level, the girder and main cunning
The connection of platform vertical sliding.Girder is removable, can adjust the position of girder before welding, convenient to take to top cover assembly
It puts.
Preferably, the welding gun is connect with welding tractor by cross slid platform, the equal position of the glide direction of the cross slid platform
In in perpendicular.Welding process middle girder is kept fixed, and welding gun is slided according to the testing result of detection device by cross
Platform adjusts position at any time in the welding process.
Preferably, the girder is frame structure.Since girder length is longer, frame structure is while alleviating weight
Maintain certain rigidity, it is therefore prevented that the slight deformation of welding process middle girder.
Preferably, the girder is 2.2 girders can carry out welding simultaneously respectively, accelerate covering two sides in top
Welding efficiency.2 girders can be moved to the same side, to facilitate the pick-and-place of top cover assembly.
Preferably, the movement of controller the control girder, welding tractor and welding gun.The movement of girder makes to take for convenience
Workpiece is taken, and carries out the adjustment of position according to the specification of different workpieces, the movement of welding tractor is to guarantee in welding process
The automatic welding path of welding gun, the movement of welding gun are to guarantee welding quality to realize real-time adjustment in the welding process.
Preferably, the detection device is sensor or camera.Visual weld bead position can be carried out by camera
It with welding gun to positivity, can also be detected by sensor, the preferred laser displacement sensor of sensor, laser displacement sensor can essence
How true detecting distance can determine whether welding quality with position detection by the size to weld seam.
It preferably, further include pressing device, the pressing device is arranged in girder bottom.Overlapped for making for pressing device
Two layers of covering fits closely, and eliminates the gap between two layers of covering.
Preferably, the pressing device includes driving part and compacting part, and the compacting part is connect with driving part.
Pressing device is controllable, realizes pressuring action after girder position is fixed.
Preferably, the driving part is cylinder, and compacting part is located at below cylinder.Cylinder reaction speed is fast, and pressure is easy
It is easy to control that covering is compressed.
Preferably, the compacting part is plate, side and main beam pivot, and hinged place and welding gun are distributed in the two of cylinder
Side.Compacting part can be rotated, and so that the pressure of cylinder is dispersed, it is therefore prevented that pressure is excessively concentrated, and covering is depressed into deformation
Situation generates.
Preferably, the pressing device is multiple along girder directional spreding.When covering is in irregular shape, multiple pressing devices
Position highly different on covering can be compressed respectively.
The utility model has the following beneficial effects:
1, gas shield welding mode arrange in pairs or groups detection device, it can be achieved that in welding process weldquality real-time monitoring, and lead to
The timely Butt welding gun of parameter for crossing weld seam adjusts；
2, crossbeam is removable, facilitates the pick-and-place of workpiece, the scope of application has also been enlarged；
3, crossbeam is removable, can be respectively provided with welding tractor on each crossbeam, realizes the independent welding of two weld seams；
4, crossbeam is removable, and welding gun is not required to also change the position of path of welding using cantilever design, increases whole strong
Degree, improves welding quality；
5, pressing device can make that overlapped two layers of covering fits closely, and eliminate the gap between two layers of covering；
6, pressing device also acts as certain supporting role, prevents girder in gravity also while workpiece pressing
It is lower to generate slight deformation, it ensure that the consistency of weldquality.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model, attached drawing needed in description will be made below
Simply introduce, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention, for this field
For those of ordinary skill, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is main slide unit scheme of installation；
Fig. 3 is welding tractor and main beam structure schematic diagram；
Fig. 4 is pressing device off working state schematic diagram；
Fig. 5 is pressing device working state schematic representation；
Fig. 6 is top cover assembly structure schematic diagram；
Description of symbols:
1- rack, 2- girder, 3- welding tractor, 4- controller, the main slide unit of 5-, 6- welding gun, 7- cross slid platform,
8- detection device, 9- pressing device, 10- cylinder, 11- pressure plate, 12- top cover assembly, 13- side skin, 14-
Covering in top.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution of the utility model, below in conjunction with attached drawing pair
The utility model is further detailed.
As shown in figs 1 to 6, a kind of thin plate curved arc part provided by the embodiment of the utility model overlaps continuous welding device,
Including rack 1, girder 2, welding tractor 3 and controller 4.Girder 2 is arranged in rack 1, is connect by main slide unit 5 with rack 1,
Main slide unit 5 is slidably connected with 1 level of rack, and girder 2 is connect with main 5 vertical sliding of slide unit.Welding tractor 3 and girder 2 are horizontal sliding
It is dynamic to connect, welding gun 6 is set on welding tractor 3, and welding gun 6 is connect with welding tractor 3 by cross slid platform 7, and weld seam is arranged in welding gun 6
Detection device 8, detection device 8 are laser displacement sensor.Pressing device 9 is arranged in 2 bottom of girder, and pressing device 9 includes
Cylinder 10 and pressure plate 11,11 side of pressure plate and girder 2 are hinged, are located at 10 lower section of cylinder.The connection control of detection device 8
Device 4, controller 4 control the movement of girder 2, welding tractor 3 and welding gun 6.
Girder 2 and the welding tractor 3 being arranged on girder 2, welding gun 6 and pressing device 9 are symmetrical set 2 groups.Weldering
Connection device 9 is distributed multiple on 2 direction of girder.Welding gun 6 is located at 9 outside of pressing device, and hinged place is located at pressing device 9 far from weldering
The side of rifle 6.
Utility model works principle is as follows:
Before work, girder 2 is moved into side first, roof frame is placed conveniently in rack 1, roof frame is fixed
Afterwards, side skin 13 is welded using manual mode and is completed, then place covering 14 in top.14 both ends of covering are welded and fixed in top,
Then start the automatic welding of covering 14 in top.
According to the position of weld seam, girder 2 is moved to slack behind corresponding position.Pressing device 9 will by pressure plate 11
Covering 14 compresses in top, eliminates the gap in side skin 13 and top between covering 14.3 setting in motion of welding tractor, welding gun 6 start to lead to
The mode automatic welding for crossing gas shield welding, the detection device 8 for following welding gun 6 mobile are judged by detecting the position of weld seam
Whether welding process meets the requirement of parameter preset, if there is deviation, even if controlling welding gun 6 by controller 4 by ten
Word slide unit 7 is finely adjusted.After the completion of final welding, 2 girders 2 move to the same side, and top cover assembly 12 is taken out.
It is above that certain exemplary embodiments of the utility model are only described by way of explanation, undoubtedly, for
Those skilled in the art can be with a variety of different without departing from the spirit and scope of the utility model
Mode is modified described embodiment.Therefore, above-mentioned attached drawing and description are regarded as illustrative in nature, and should not be construed as
Limitation to the utility model claims protection scope.
Claims (10)
1. a kind of thin plate curved arc part overlaps continuous welding device, it is characterised in that: including rack (1), girder (2), welding tractor
(3) with controller (4), on rack (1), the welding tractor (3) and girder (2) horizontal sliding connect for girder (2) setting
It connects, welding gun (6) are arranged in the welding tractor (3), and detection device (8) are arranged in the welding gun (6), the detection device
(8) controller (4) are connected, controller (4) the connecting welding trolley (3).
2. a kind of thin plate curved arc part according to claim 1 overlaps continuous welding device, it is characterised in that: the rack
(1) main slide unit (5) is set, and the main slide unit (5) is slidably connected with rack (1) level, and the girder (2) and main slide unit (5) are perpendicular
Directly it is slidably connected.
3. a kind of thin plate curved arc part according to claim 1 overlaps continuous welding device, it is characterised in that: the welding gun
(6) it is connect with welding tractor (3) by cross slid platform (7), the glide direction of the cross slid platform (7) is respectively positioned on perpendicular
It is interior.
4. a kind of thin plate curved arc part according to claim 1 overlaps continuous welding device, it is characterised in that: the girder
It (2) is frame structure, the girder (2) is 2.
5. a kind of thin plate curved arc part according to claim 1 overlaps continuous welding device, it is characterised in that: the controller
(4) movement of girder (2), welding tractor (3) and welding gun (6) is controlled.
6. a kind of thin plate curved arc part according to claim 1 overlaps continuous welding device, it is characterised in that: the weld seam inspection
Surveying device (8) is sensor or camera.
7. a kind of thin plate curved arc part according to claim 1 overlaps continuous welding device, it is characterised in that: further include compressing
Device (9), the pressing device (9) are arranged in girder (2) bottom.
8. a kind of thin plate curved arc part according to claim 7 overlaps continuous welding device, it is characterised in that: the compression dress
Setting (9) includes driving part and compacting part, and the compacting part is connect with driving part.
9. a kind of thin plate curved arc part according to claim 8 overlaps continuous welding device, it is characterised in that: the driving portion
Part is cylinder (10), and compacting part is located at below cylinder (10)；The compacting part is plate, and side and girder (2) hingedly, are cut with scissors
The place of connecing and welding gun (6) are distributed in the two sides of cylinder (10).
10. a kind of thin plate curved arc part according to claim 9 overlaps continuous welding device, it is characterised in that: the compression
Device (9) is multiple along girder (2) directional spreding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821819117.2U CN209206673U (en) | 2018-11-06 | 2018-11-06 | A kind of thin plate curved arc part overlap joint continuous welding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821819117.2U CN209206673U (en) | 2018-11-06 | 2018-11-06 | A kind of thin plate curved arc part overlap joint continuous welding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209206673U true CN209206673U (en) | 2019-08-06 |
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ID=67458410
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821819117.2U Expired - Fee Related CN209206673U (en) | 2018-11-06 | 2018-11-06 | A kind of thin plate curved arc part overlap joint continuous welding device |
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| Country | Link |
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| CN (1) | CN209206673U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109277668A (en) * | 2018-11-06 | 2019-01-29 | 高建路 | A kind of thin plate curved arc part overlap joint continuous welding device and implementation |
| CN113146622A (en) * | 2021-03-22 | 2021-07-23 | 哈尔滨工业大学 | Visual identification method for laser welding of framework skin structure |
-
2018
- 2018-11-06 CN CN201821819117.2U patent/CN209206673U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109277668A (en) * | 2018-11-06 | 2019-01-29 | 高建路 | A kind of thin plate curved arc part overlap joint continuous welding device and implementation |
| CN113146622A (en) * | 2021-03-22 | 2021-07-23 | 哈尔滨工业大学 | Visual identification method for laser welding of framework skin structure |
| CN113146622B (en) * | 2021-03-22 | 2022-07-05 | 哈尔滨工业大学 | Visual identification method for laser welding of framework skin structure |
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Granted publication date: 20190806 |