CN107138896A - White car body top cover laser welding hold-down mechanism and laser welding frock - Google Patents
White car body top cover laser welding hold-down mechanism and laser welding frock Download PDFInfo
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- CN107138896A CN107138896A CN201710379141.2A CN201710379141A CN107138896A CN 107138896 A CN107138896 A CN 107138896A CN 201710379141 A CN201710379141 A CN 201710379141A CN 107138896 A CN107138896 A CN 107138896A
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- Prior art keywords
- top cover
- laser welding
- follower
- car body
- down mechanism
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Laser Beam Processing (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The present invention relates to a kind of white car body top cover laser welding hold-down mechanism and it is configured with the white car body top cover laser welding frock of the hold-down mechanism.The white car body top cover laser welding hold-down mechanism includes being used for the installing plate being fixedly connected with laser welding head and the top cover compressing unit and gusset compressing unit that are arranged on installing plate；Top cover compressing unit includes at least one top cover and compresses follower, and gusset compressing unit includes at least one top plate compression follower and at least one side plate compresses follower, and each follower is used to contact in rolling friction with the corresponding position of white body.By setting top cover compressing unit and gusset compressing unit to compress top cover and gusset respectively, the weld seam between the top cover and gusset at welding position is controlled in claimed range, required precision of the laser welding to weld gap is met, it is ensured that the welding quality of top cover.This hold-down mechanism is simple in construction, can move and move with laser welding head, it is adaptable to plane or the splicing welding job with taper, fast response time, improve the efficiency of white car body top cover laser welding.
Description
Technical field
The invention belongs to field of automobile, and in particular to a kind of white car body top cover laser welding hold-down mechanism and match somebody with somebody
It is equipped with the white car body top cover laser welding frock of the hold-down mechanism.
Background technology
In white car body top cover welding technique, automobile main frame maker is ensures product quality and technical advance, and a large amount of vehicles are equal
Laser welding technology is used, to improve the presentation quality and and structural strength of vehicle body.
White car body top cover is welded as large scale, long stroke, thin-slab structure part, the welding of multistage curve, its basic technical indicator
For：Weldquality, which meets the requirement of vehicle outward appearance and intensity, meet vehicle is tightly connected requirement, and satisfaction is easy to operation and high-volume
Industrialized requirement etc..In welding process, there are following technological difficulties：Weld gap control, welding Control Thermal Deformation, many cars
Type mixes line production etc..
According to Product Definition demand, when existing laser welding is processed, a larger robot need to be used to capture top cover pressure
Top cover is pressed on white body by tight frock in advance, so often top cover is deformed in welding process and is influenceed to weld matter
Amount, it is common practice to increase B post hold-fast bodies in white body both sides again, this compression tooling adds the side of B post hold-fast bodies
Formula need to manufacture a set of matching chucking appliance system for every kind of vehicle, be needed when changing vehicle by the fixture system of other vehicles
System is placed in laser welding chamber, and not only production cost is higher, and needs to take larger space, and such butt welding picks up type
Spreading number amount generates very big limitation.
According to Product Definition demand, when existing laser welding is processed, when top cover compression tooling and B posts hold-fast body compression
Robot motion and cylinder action are both needed to consume the regular hour, the overlong time for so being consumed laser welding station, no
Beneficial to the raising of production capacity.
In addition, making a general survey of the frock of existing white car body top cover laser welding, such as《Laser top cover welds clamping device》
(CN103586614A)、《Automobile top cover compression tooling》(CN205290726U) unit fragment bit folder is fixed to clamp using multigroup
There are two big subject matters in tight form, this mode：1st, because workpiece is in the constant error manufactured and designed so that white car body top cover
When being clamped with gusset, the uniformity of whole piece weld seam is difficult to ensure that, so as to reduce weld seam precision；2nd, due to needing to manufacture and design many sets
Clamping unit so that welding tooling cost increase.
The content of the invention
The present embodiments relate to a kind of white car body top cover laser welding hold-down mechanism and it is configured with the white of the hold-down mechanism
Car body top cover laser welding frock, can at least solve the segmental defect of prior art.
The present embodiments relate to a kind of white car body top cover laser welding hold-down mechanism, including：
For the installing plate being fixedly connected with laser welding head；
Top cover compressing unit, including at least one top cover compress follower, each top cover compress follower with it is described
Installing plate is connected, and each top cover compresses follower and set gradually along welding track bearing of trend, and is respectively provided with and is used for and top cover
Upper surface is in the top cover seal face that rolling friction is contacted；
Gusset compressing unit, including at least one top plate compresses follower and at least one side plate compresses follower, each institute
State top plate compression follower and each side plate compresses follower and is connected with the installing plate, each top plate compresses follower
Set gradually along welding track bearing of trend and be respectively provided with the upper beam face for being contacted with roof side rail top board surface in rolling friction
Seal face, each side plate, which compresses follower and sets gradually and be respectively provided with along welding track bearing of trend, to be used for and roof side rail side plate
Surface is in the curb girder face seal face that rolling friction is contacted.
As one of embodiment, the top cover compressing unit includes multiple top covers and compresses follower and make each described
Top cover compresses the top cover adaptive structure of the adaptive top cover Curvature varying of follower.
As one of embodiment, the top cover adaptive structure includes at least one being rotatably connected with the installing plate
First rotary shaft, the axial direction of each first rotary shaft is horizontal direction and is each perpendicular to welding track bearing of trend, each
It is provided with first rotary shaft on one first installation pedestal, each first installation pedestal and multiple tops is installed
Lid compresses follower.
As one of embodiment, the top plate compresses follower and the side plate compress follower be it is multiple, it is described
Gusset compressing unit also includes gusset adaptive structure, each top plate is compressed follower and each side plate compression follower
The Curvature varying along welding track bearing of trend of the equal adaptive roof side rail of energy.
As one of embodiment, the gusset adaptive structure includes at least one being rotatably connected with the installing plate
Second rotary shaft, the axial direction of each second rotary shaft is each perpendicular to welding track bearing of trend, the roof side rail top plate and institute
State roof side rail side plate to connect by fillet surface, axially the cutting flat with each parallel to the fillet surface of each second rotary shaft
Face；One end of each second rotary shaft is provided with one second installation pedestal, and the other end is provided with the 3rd installation axle
Multiple top plates are installed on frame, each second installation pedestal and compress follower, each described 3rd installs on pedestal
Multiple side plates are installed and compress follower.
As one of embodiment, the white car body top cover laser welding hold-down mechanism also includes：
First driven against or away from top cover upper surface for driving each top cover to compress follower and top cover upper surface
Moving cell；
For driving, each top plate compresses follower and each side plate compresses follower and contacted with roof side rail or remote
Second driver element of roof side rail.
As one of embodiment, the white car body top cover laser welding hold-down mechanism also includes pressure control unit, for controlling
Make the pressure between each follower and white body corresponding position.
As one of embodiment, first driver element includes at least one first actuator, and each described first drives
Moving part compresses follower with top cover at least one described and is connected；
Second driver element includes at least one second actuator, and each second actuator is connected with least one
The individual top plate compresses follower and at least one described side plate compresses follower；
The pressure control unit includes central controller, multiple pressure sensors and multiple proportional servo valves, wherein, often
First actuator described in one is connected with a pressure sensor and a proportional servo valve, each second driving
Part is connected with a pressure sensor and a proportional servo valve, and each pressure sensor is controlled with the center
The input electrical connection of device processed, output end of each proportional servo valve with the central controller is electrically connected.
The present embodiments relate to a kind of white car body top cover laser welding frock, including laser welding head, including compress dress
Put, the pressing device uses white car body top cover laser welding hold-down mechanism as described above；Wherein, the institute of the pressing device
State installing plate to be connected with the laser welding head, the top cover compressing unit of the pressing device and the institute of the pressing device
State gusset compressing unit and be respectively in the laser welding head both sides.
As one of embodiment, the white car body top cover laser welding frock also includes pre-compressing device, the pre-pressing dress
Put including at least one set of white car body top cover laser welding hold-down mechanism as described above；Wherein, each institute of the pre-compressing device
State installing plate to be connected with the laser welding head, each white car body top cover laser welding compacting machine of the pre-compressing device
Work traffic direction of the structure along the laser welding head is sequentially arranged, and is respectively positioned on the remote weld zone of the laser welding head
Side.
The embodiment of the present invention at least has the advantages that：By setting top cover compressing unit and gusset compressing unit,
The weld seam both sides of corresponding position are respectively in both this, each top cover of top cover compressing unit compresses follower and is pressed on top cover,
Each top plate of gusset compressing unit compresses follower and each side plate compresses follower and is pressed on the roof side rail of white body gusset,
Weld seam between the top cover and gusset of corresponding position is controlled in claimed range, so as to meet laser welding to weld gap
Required precision, it is ensured that the welding quality of top cover.The hold-down mechanism that the present embodiment is provided is simple in construction, it is adaptable to plane or with taper
Curved surface workpiece assembly, can move and move with laser welding head, electrical equipment is few, fast response time, improves white body
Top cover laser welding precision and efficiency.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of white car body top cover laser welding hold-down mechanism provided in an embodiment of the present invention；
Fig. 2 is the structural representation at another visual angle of white car body top cover laser welding hold-down mechanism provided in an embodiment of the present invention
Figure；
Fig. 3 is the attachment structure schematic diagram that the first rotary shaft provided in an embodiment of the present invention compresses follower with top cover；
Fig. 4 is that the second rotary shaft provided in an embodiment of the present invention compresses follower with top plate and side plate compresses the company of follower
Connect structural representation.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is all other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Embodiment one
Such as Fig. 1-Fig. 4, the present embodiments relate to a kind of white car body top cover laser welding hold-down mechanism, including：
(1) it is used for the installing plate 1 being fixedly connected with laser welding head；
(2) top cover compressing unit 6, including at least one top cover compress follower 603, and each top cover compresses follower
603 are connected with the installing plate 1, and each top cover compresses follower 603 and set gradually along welding track bearing of trend, and
With the top cover seal face for being contacted with top cover upper surface in rolling friction；
(3) gusset compressing unit 7, including at least one top plate compresses follower 704 and at least one side plate is compressed and is servo-actuated
Part 705, each top plate compresses follower 704 and each side plate compresses follower 705 and is connected with the installing plate 1, respectively
The top plate compresses follower 704 and sets gradually and be respectively provided with for being in roof side rail top board surface along welding track bearing of trend
The upper beam face seal face of rolling friction contact, each side plate compresses follower 705 and set gradually along welding track bearing of trend
And it is respectively provided with the curb girder face seal face for being contacted with roof side rail surface of side plate in rolling friction.
Be fixedly connected by above-mentioned installing plate 1 with laser welding head, that is, realize this hold-down mechanism and laser welding head with
Dynamic connection, can follow the running orbit of plumb joint and be synchronized with the movement, it is ensured that in top cover laser beam welding in real time to top cover and
Gusset is compressed.Above-mentioned top cover compresses follower 603, top plate and compresses follower 704 and side plate compression follower 705
Rotate and set, and be in the tangent way of contact with the corresponding position of white body, installing plate 1 is with laser welding head motion process, band
Move each follower to roll on the corresponding position of white body, it is possible to decrease the friction between the corresponding position of each follower and white body
Power.Above-mentioned each follower can be the colyliform followers such as roller, roller, rolling bearing, then above-mentioned top cover seal face, upper beam
Face seal face and curb girder face pressure are tightly in face of should be ring-type cambered surface；Each follower can also be the spherical followers such as ball, then above-mentioned
Top cover seal face, upper beam face seal face and curb girder face pressure be tightly in face of should be sphere.
Such as Fig. 1 and Fig. 2, because above-mentioned top cover compressing unit 6 and gusset compressing unit 7 need to be respectively in corresponding position
Weld seam both sides, it is preferable that each top cover compresses follower 603 and is installed on installing plate 1, and in connecting gusset on the installing plate 1
Side fixed plate 9 (can be connected) by middle connecting plate 10, and each top plate compresses follower 704 and each side plate compression follower 705 is equal
In the gusset side fixed plate 9.The structure of installing plate 1 and gusset side fixed plate 9 and the attachment structure with laser welding head
The top cover welding requirements of corresponding vehicle need to be met, to ensure that each follower can be pressed on the corresponding site of white body；Enter
Preferably, when installing plate 1 is installed on laser welding head, each top cover compresses follower 603 to one step and each top plate is compressed and is servo-actuated
Part 704 is both preferably to be set close to laser welding head, not influence the welding operation of laser welding head to be defined, further to improve
Compress effect.In the present embodiment, it is equal that top cover compresses follower 603, top plate compression follower 704 and side plate compression follower 705
Preferably using multiple, to improve compression effect；And along welding track bearing of trend, before and after laser welding head
The quantity of top cover compression follower 603 is identical and is arranged symmetrically, and the top plate before and after laser welding head compresses servo-actuated
The quantity of part 704 is identical and is arranged symmetrically, and the side plate before and after laser welding head compresses the quantity phase of follower 705
With and be arranged symmetrically.
Usually, the roof side rail of white body is in Cyclic dart shape, i.e., including top plate and side plate, top plate and the visual vehicle of side plate etc.
Actual conditions using different structure (such as curved-surface structure or planar structure, or top plate include the side plate bending of multistage different curvature,
Side plate includes side plate bending and planar section of multistage different curvature etc.), top plate and side plate are connected by arc-shaped transition plate, above-mentioned top plate
Welded with top cover, above-mentioned side plate is then connected with white body gusset other parts (such as A posts, B posts, C posts)；Usually, on above-mentioned
Side bar is formed in one structure.Above-mentioned each side plate compresses follower 705 and can be resisted against on the side surface of roof side rail side plate (i.e.
A side surface outside the close car of the side plate), it also can be resisted against the lower along along surface of roof side rail side plate；It is excellent in the present embodiment
Elect as using each side plate compress follower 705 be resisted against roof side rail side plate it is lower along by the way of surface (i.e. each side plate compression with
The set location and angle corresponding configuration of moving part 705, are pressed on roof side rail top plate to compress follower 704 in each top plate
When, the top that each side plate compresses follower 705 can be resisted against the lower edge of roof side rail side plate), compress follower 704 in each top plate and press
In the case of on tight back plate on top, each side plate, which compresses follower 705, to provide jacking force to roof side rail to a certain extent, right
Roof side rail in other words dialogue body side wall clamping action more preferably.
Above-mentioned top cover compressing unit 6 is respectively in the weld seam both sides of corresponding position with gusset compressing unit 7, and top cover is compressed
Each top cover of unit 6 compresses follower 603 and is pressed on top cover, and each top plate of gusset compressing unit 7 compresses follower 704 and each
Side plate compresses follower 705 and is pressed on the roof side rail of white body gusset, by the weldering between the top cover and gusset of corresponding position
Seam control is in claimed range, so as to meet required precision of the laser welding to weld gap, it is ensured that the welding quality of top cover.This
The hold-down mechanism that embodiment is provided is simple in construction, and electrical equipment is few, can move and move, fast response time with laser welding head,
Improve the efficiency of white car body top cover laser welding.
Further optimize the structure of above-mentioned hold-down mechanism, above-mentioned top cover compressing unit 6 include multiple top covers compress with
Moving part 603, can be changed due to the curvature along welding track bearing of trend, top cover (namely the radian of top cover can become
Change), it is therefore preferred that the top cover compressing unit 6 also includes making each top cover compress the adaptive top cover curvature of follower 603
The top cover adaptive structure of change, to avoid top cover compressing unit 6 with laser welding head moving process, due to top cover curvature
Change and cause the top cover of front side (i.e. close to unwelded side) to compress and produce " suppressing power " between follower 603 and top cover.Such as
Fig. 1-Fig. 3, it is preferable that above-mentioned top cover adaptive structure includes at least one first rotary shaft being rotatably connected with installing plate 1
601, the axial direction of each first rotary shaft 601 is horizontal direction and is each perpendicular to welding track bearing of trend, every one first rotation
Be provided with axle 601 on one first installation pedestal 602, every one first installation pedestal 602 be provided with multiple top covers compress it is servo-actuated
Part 603；In top cover compressing unit 6 with laser welding head moving process, changed if running into top cover curvature, each top cover is compressed
Opposing force between follower 603 and top cover may be different, and corresponding first rotary shaft 601 rotates around own axes,
The relative position that each top cover on each installation pedestal compresses the in the vertical direction of follower 603 changes, so as to adjust each
Top cover compresses the opposing force between follower 603 and top cover, is changed with the surface appearance for adapting to white car body top cover, it is ensured that top
The smooth progress of lid laser welding work.The top cover adaptive structure of aforesaid way is applied to the top using roller type or ball-type
Lid compresses follower 603.Follower 603 is such as compressed using the top cover of ball-type, above-mentioned top cover adaptive structure can also be taken
Following manner：Each top cover is compressed to be connected between follower 603 and installing plate 1 by the way of ball pivot, i.e., top cover is adaptively tied
Structure includes multiple oscillating bearings, and the quantity of oscillating bearing is identical with the quantity that top cover compresses follower 603 and corresponds configuration；
The specific set-up mode of each oscillating bearing and to compress the connected mode between follower 603 and installing plate 1 top cover be this area
Technical staff is readily apparent according to prior art, is omitted herein.Further, such as Fig. 1-Fig. 3, each first installs pedestal
It is preferably that two top covers are installed to compress follower 603 on 602, it is to avoid the same first top cover installed on pedestal 602 compresses servo-actuated
The quantity of part 603 is excessive and influences the adaptive ability of above-mentioned top cover adaptive structure；Meanwhile, above-mentioned first rotary shaft 601 is
Two, the first installation pedestal 602 corresponds to two, is located at respectively along two the first rotary shafts 601 of welding track bearing of trend and swashs
The front side of flush weld joint and rear side.
Further optimize the structure of above-mentioned hold-down mechanism, similarly, the top plate compresses follower 704 and the side plate
It is multiple to compress follower 705, and the gusset compressing unit 7 also includes gusset adaptive structure, compresses each top plate
Follower 704 and each side plate compress the curvature along welding track bearing of trend of the adaptive roof side rail of the energy of follower 705
Change.As shown in Figure 1, Figure 2 and Fig. 4, as one of embodiment, the gusset adaptive structure includes rotatable with the installing plate 1
At least one second rotary shaft 701 of connection, the axial direction of each second rotary shaft 701 is each perpendicular to welding track extension side
To, and each parallel to the roof side rail top plate and the curved surface (i.e. above-mentioned arc-shaped transition plate) of the roof side rail side plate junction
Section；One end of each second rotary shaft 701 is provided with one second installation pedestal 702, and the other end is provided with one
Multiple top plates are installed on 3rd installation pedestal 703, each second installation pedestal 702 and compress followers 704, it is each
Multiple side plates are installed on the 3rd installation pedestal 703 and compress follower 705.The axle of above-mentioned each second rotary shaft 701
To setting, to meet, corresponding each top plate is compressed between follower 704 and roof side rail top plate and corresponding each side plate is compressed and is servo-actuated
Between part 705 and roof side rail side plate there is maximum contact area to be advisable, can be correspondingly arranged according to different vehicles, this is ability
Field technique personnel are easy to what is determined.Similarly, above-mentioned each top plate compresses between follower 704 and gusset side fixed plate 9 and each
Side plate is compressed can be connected between follower 705 and gusset side fixed plate 9 by the way of ball pivot, to meet above-mentioned gusset
The functional requirement of adaptive structure, is no longer described in detail herein.
Further optimize the structure of above-mentioned hold-down mechanism, such as Fig. 1 and Fig. 2, the white car body top cover laser welding hold-down mechanism
Also include：For drive each top cover compress follower 603 and top cover upper surface against or away from top cover upper surface first
Driver element and each top plate compresses follower 704 and each side plate compresses follower 705 and roof side rail for driving
Contact or the second driver element away from roof side rail.Above-mentioned first driver element and the second driver element can further improve dialogue
The control that vehicle body top and gusset are compressed.Wherein, first driver element includes at least one first actuator 2, Mei Yisuo
The first actuator 2 is stated to be connected with top cover compression follower 603 at least one described；Second driver element includes at least one
Second actuator 8, each second actuator 8 is connected with least one described top plate and compresses follower 704 and at least one
The side plate compresses follower 705.It is above-mentioned for the above-mentioned structure for being provided with the first rotary shaft 601 and the second rotary shaft 701
Every one first rotary shaft 601 is connected to the output end of first actuator 2, can be set in the output end of first actuator 2
One bearing block 5, first rotary shaft 601 is pivotally mounted on the bearing block 5；Above-mentioned every one second rotary shaft 701 is connected
In the output end of second actuator 8, one bearing block 5, second rotary shaft can be set in the output end of second actuator 8
701 are pivotally mounted on the bearing block 5.In the present embodiment, above-mentioned each first actuator 2 and each second actuator 8 are excellent
Elect as using the conventional driving equipment such as cylinder or hydraulic cylinder；More preferably set on installing plate 1 and gusset side fixed plate 9
Dust cover 11 is put, to protect each actuator.
Further, the white car body top cover laser welding hold-down mechanism also includes pressure control unit, for control it is each with
Pressure between moving part and white body corresponding position.The side of pressure between above-mentioned each follower of control and white body corresponding position
Formula can use the pressure controling mode commonly used in technical field of automation；It is exemplified below a specific embodiment：The pressure control
Unit processed includes central controller, multiple pressure sensors 4 and multiple proportional servo valves, wherein, each first actuator 2
It is connected with a pressure sensor 4 (can be connected by connector 3 with first actuator 2) and a proportional servo
Valve, each second actuator 8 is connected with a pressure sensor 4 (can be by connector 3 and second actuator 8
Connection) an and proportional servo valve, input of each pressure sensor 4 with the central controller electrically connect,
Output end of each proportional servo valve with the central controller is electrically connected.Above-mentioned each proportional servo valve and corresponding driving
Electric connection structure between attachment structure, each pressure sensor 4 and central controller and each proportional servo valve between part with
Electric connection structure between central controller is that those skilled in the art are readily apparent according to prior art, is omitted herein.Respectively
The cooperating of pressure sensor 4, detects that the hold-down mechanism is applied to the pressure of white car body top cover and gusset and feeds back to signal
In above-mentioned central controller, control signal is output on each proportional servo valve by signal after being changed through central controller, by adjusting
Save each servo valve to control the power output of each actuator, so as to complete the pressure closed loop control of this hold-down mechanism.
Embodiment two
The present embodiments relate to a kind of white car body top cover laser welding frock, including laser welding head and pressing device,
The pressing device is preferably the white car body top cover laser welding hold-down mechanism provided using above-described embodiment one；Wherein, it is described
The installing plate 1 of pressing device is connected with the laser welding head, the top cover compressing unit 6 of the pressing device and institute
The gusset compressing unit 7 for stating pressing device is respectively in the laser welding head both sides.Above-mentioned pressing device is to laser welding
The top cover and gusset of head both sides are compressed, to ensure the stabilization of weld seam size.
Further, the white car body top cover laser welding frock also includes pre-compressing device, and the pre-compressing device is preferred
For the white car body top cover laser welding hold-down mechanism provided using above-described embodiment one；Wherein, the institute of the pre-compressing device
Installing plate 1 is stated to be connected with the laser welding head, along the work traffic direction of the laser welding head, the pre-compressing device
The gusset compressing unit 7 of the top cover compressing unit 6 and the pre-compressing device is respectively positioned in front of the laser welding head
And it is respectively in the running orbit both sides of the laser welding head.Above-mentioned pre-compressing device is to the top cover in front of laser welding head and side
Carry out pre-pressing is enclosed, to ensure weld seam control in certain scope.
Coordinated by above-mentioned pressing device and pre-compressing device, the compression effect to white car body top cover and gusset is preferable, can
Meet required precision of the laser welding to weld gap.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (10)
1. a kind of white car body top cover laser welding hold-down mechanism, it is characterised in that including：
For the installing plate being fixedly connected with laser welding head；
Top cover compressing unit, including at least one top cover compress follower, and each top cover compresses follower and installed with described
Plate is connected, and each top cover compresses follower and set gradually along welding track bearing of trend, and be respectively provided with for and top cover upper table
Face is in the top cover seal face that rolling friction is contacted；
Gusset compressing unit, including at least one top plate compresses follower and at least one side plate compresses follower, each top
Plate compresses follower and each side plate compresses follower and is connected with the installing plate, and each top plate compresses follower along weldering
The mark bearing of trend that integrates with sets gradually and is respectively provided with tight for the upper beam face pressure that is contacted with roof side rail top board surface in rolling friction
Face, each side plate, which compresses follower and sets gradually and be respectively provided with along welding track bearing of trend, to be used for and roof side rail surface of side plate
The curb girder face seal face contacted in rolling friction.
2. white car body top cover laser welding hold-down mechanism as claimed in claim 1, it is characterised in that：The top cover compressing unit
Follower is compressed including multiple top covers and makes the top cover of each top cover compression adaptive top cover Curvature varying of follower
Adaptive structure.
3. white car body top cover laser welding hold-down mechanism as claimed in claim 2, it is characterised in that：The top cover is adaptively tied
Structure includes at least one first rotary shaft being rotatably connected with the installing plate, and the axial direction of each first rotary shaft is water
Square to and be each perpendicular to be provided with one first installation pedestal in welding track bearing of trend, each first rotary shaft,
Multiple top covers are installed on each first installation pedestal and compress follower.
4. white car body top cover laser welding hold-down mechanism as claimed in claim 1, it is characterised in that：The top plate compresses servo-actuated
It is multiple that part and the side plate, which compress follower, and the gusset compressing unit also includes gusset adaptive structure, makes each institute
State top plate compress follower and each side plate compress follower can adaptive roof side rail along welding track bearing of trend
Curvature varying.
5. white car body top cover laser welding hold-down mechanism as claimed in claim 4, it is characterised in that：The gusset is adaptively tied
Structure includes at least one second rotary shaft being rotatably connected with the installing plate, and the axial direction of each second rotary shaft is vertical
In welding track bearing of trend, the roof side rail top plate is connected with the roof side rail side plate by fillet surface, and each described second
The section axially each parallel to the fillet surface of rotary shaft；One end of each second rotary shaft is provided with one
Two install pedestals, the other end be provided with one the 3rd installation pedestal, each second installation pedestal be provided with it is multiple described
Top plate compresses and is provided with multiple side plates compression followers on follower, each 3rd installation pedestal.
6. the white car body top cover laser welding hold-down mechanism as any one of claim 1 to 5, it is characterised in that also wrap
Include：
For drive each top cover compress follower and top cover upper surface against or away from top cover upper surface the first driving it is single
Member；
For driving, each top plate compresses follower and each side plate compresses follower and contacted with roof side rail or away from top
Second driver element of beam.
7. white car body top cover laser welding hold-down mechanism as claimed in claim 6, it is characterised in that：Also include Stress control list
Member, for controlling the pressure between each follower and white body corresponding position.
8. white car body top cover laser welding hold-down mechanism as claimed in claim 7, it is characterised in that：
First driver element includes at least one first actuator, each first actuator and at least one described top
Lid compresses follower connection；
Second driver element includes at least one second actuator, and each second actuator is connected with least one institute
State top plate and compress follower and at least one described side plate compression follower；
The pressure control unit includes central controller, multiple pressure sensors and multiple proportional servo valves, wherein, Mei Yisuo
State the first actuator and be connected with a pressure sensor and a proportional servo valve, each second actuator connects
Be connected to a pressure sensor and a proportional servo valve, each pressure sensor with the central controller
Input electrical connection, output end of each proportional servo valve with the central controller electrically connect.
9. a kind of white car body top cover laser welding frock, including laser welding head, it is characterised in that：It is described including pressing device
Pressing device is using the white car body top cover laser welding hold-down mechanism as any one of claim 1 to 8；Wherein, it is described
The installing plate of pressing device is connected with the laser welding head, the top cover compressing unit of the pressing device and described
The gusset compressing unit of pressing device is respectively in the laser welding head both sides.
10. white car body top cover laser welding frock as claimed in claim 9, it is characterised in that：Also include pre-compressing device, institute
Stating pre-compressing device includes at least one set of white car body top cover laser welding compacting machine as any one of claim 1 to 8
Structure；Wherein, each installing plate of the pre-compressing device is connected with the laser welding head, the pre-compressing device it is each
Work traffic direction of the white car body top cover laser welding hold-down mechanism along the laser welding head is sequentially arranged, and is respectively positioned on
The side away from weld zone of the laser welding head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710379141.2A CN107138896B (en) | 2017-05-25 | 2017-05-25 | White automobile body top cap laser welding hold-down mechanism and laser welding frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710379141.2A CN107138896B (en) | 2017-05-25 | 2017-05-25 | White automobile body top cap laser welding hold-down mechanism and laser welding frock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107138896A true CN107138896A (en) | 2017-09-08 |
| CN107138896B CN107138896B (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710379141.2A Active CN107138896B (en) | 2017-05-25 | 2017-05-25 | White automobile body top cap laser welding hold-down mechanism and laser welding frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107138896B (en) |
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| CN110560917A (en) * | 2019-10-15 | 2019-12-13 | 华工法利莱切焊***工程有限公司 | Laser code printing equipment and method for printing codes on automobile bodies |
| CN110899975A (en) * | 2019-12-13 | 2020-03-24 | 同高先进制造科技（太仓）有限公司 | Car roof laser brazing double-side flexible accompanying pressing system |
| CN114055201A (en) * | 2021-12-06 | 2022-02-18 | 中南大学 | Automatic clamp |
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| CN114055201A (en) * | 2021-12-06 | 2022-02-18 | 中南大学 | Automatic clamp |
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| Publication number | Publication date |
|---|---|
| CN107138896B (en) | 2020-05-19 |
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Address after: 436000 zone a, west of Chuangye Avenue, Gedian Development Zone, Ezhou City, Hubei Province Patentee after: HUAGONG FARLEY CUTTING AND WELDING SYSTEM ENGINEERING Co.,Ltd. Address before: 436000 zone a, west of Chuangye Avenue, Gedian Development Zone, Ezhou City, Hubei Province Patentee before: HUBEI FARLEY LASERLAB CUTTING WELDING SYSTEM ENGINEERING CO.,LTD. |