Laser welding aid system
Technical field
The invention belongs to technical field of laser processing, be specifically related to a kind of laser welding aid system.
Background technology
Laser welding is a kind of novel welding manner, mainly for thin-walled material, the welding of precision component, can realize a little
Weldering, butt welding, stitch welding, seal weld etc., have depth-to-width ratio high, and weld width is little, and heat affected area is little, it is little to deform, and speed of welding is fast,
Smooth welded seam, attractive in appearance, postwelding is without processing or only need simple process, and weldquality is high, and pore-free is accurately controlled, and focuses on light
Point is little, and positioning precision is high, easily realizes the advantages such as automatization.
Traditional laser welding processing uses manual type to be placed on welding bench by workpiece to be welded, the most hand-held
Workpiece to be welded also positions simply, re-uses welding equipment and carries out welding processing, and whole automation technolo degree is low,
Not only cause the problem that production and processing efficiency is low, labor strength big, waste time and energy, and welding bench can not be to be welded
The workpiece connect reliably positions, and makes welding quality unstable, and percent defective remains high.Solve problem above to become when business
Anxious.
Summary of the invention
For solving above technical problem, the present invention provides a kind of laser welding aid system, novel structure, automaticity
High, it is possible to accurately, reliably to position workpiece to be welded, be effectively increased welding quality, laser welding processing is greatly improved
Efficiency.
For achieving the above object, technical solution of the present invention is as follows:
A kind of laser welding aid system, it is characterized by: include work platforms, is provided with at least one on this work platforms
Individual welding pressing table, each described welding pressing table is respectively furnished with at least two storage device, and each described storage device is respectively furnished with
One robot assemblies, this robot assemblies is used for the workpiece grabbing to be welded in storage device to welding pressing table.
Use above structure, by robot assemblies by the workpiece grabbing to be welded in storage device to welding pressing table,
And carry out compressing, positioning by workpiece to be welded by welding pressing table, whole system novel structure, substantially increase laser welding
The automaticity of processing, reduces the labor intensity of workman, improves laser welding working (machining) efficiency, and be effectively increased welding
Quality, it is ensured that the stability of end product quality, significantly reduces waste product incidence rate, thus reduces production cost, has high
Practicality.
As preferably: described welding pressing table includes welding bench body and hold-down mechanism, and this hold-down mechanism includes being arranged on
First telescopic cylinder of described work platforms bottom, the first piston bar of this first telescopic cylinder connects after described work platforms
Being connected to pneumatic briquetting, this pneumatic briquetting has the most horizontal-extending pressing plate, and this pressing plate is positioned at just going up of described welding bench body
Side, is provided with about at least one welding groove run through on described pressing plate, and the bearing of trend of this welding groove prolongs with described pressing plate
Stretch direction consistent.Use above structure, quickly to-be-welded pieces can be compressed on welding bench, make both welding positions
Laminating, cylinder controls pressing plate and pushes down two welding laminating positions of to-be-welded pieces accurately, it is ensured that will not between two weldments
There is relative movement, improve the welding quality of welding finished product.
As preferably: be provided with the puff prot for injecting protective gas in the junction of described pneumatic briquetting and pressing plate, should
The injection direction of puff prot is consistent with the bearing of trend of described pressing plate.Using above structure, protective gas can protect condenser lens
Pollute from metal vapors and the sputtering of liquid molten drop, and workpiece can be made in welding process from oxidation, disperse Gao Gong simultaneously
The plasma shielding that rate laser welding produces.
As preferably: be provided with the alignment pin for positioning workpiece to be welded and limited block on described welding bench body,
Being provided with the deck for positioning described pressing plate on this welding bench body, this deck is positioned at the underface of described pressing plate outer end,
The bottom width of described deck opening part is identical with the width of described pressing plate outer end.Use above structure, it is ensured that weldment two
Welding position laminating precisely, substantially increases the welding quality of welding finished product.
As preferably: described storage device includes base, it is provided with rotating rotation material storage mechanism, this rotation on the base
Turn material storage mechanism and include rotation dish, for driving the rotary cylinder of this turn disc and being arranged on described rotation dish extremely
The material-storing box of few two upper openings, is provided with liftable material tray in each material-storing box, is provided with on described base
For the elevating mechanism driving this material tray to lift.Using above structure, one of them material-storing box passes through material tray to weldering
Connecing pressing table feeding, workman can supplement material to other material-storing box simultaneously, when not having material in the material-storing box of feeding, rotates
Dish rotates, and the material-storing box loading full with substance goes to preliminary station and continues to empty material-storing box to welding pressing table feeding, workman
Supplement material, substantially reduce whole laser welding system and cause the time of shutdown because of filler, reduce the labor intensity of workman,
Improve the efficiency of laser welding processing.
As preferably: described elevating mechanism includes the double guide rod screw mandrel groups being arranged on described base and drives this pair to lead
The motor of bar screw mandrel group;The described pair of guide rod screw mandrel group includes elevator, the outside framework being arranged on described base and all
Being arranged on the screw mandrel on this outside framework and two guide rods, two described guide rods are positioned at the both sides of screw mandrel, and three is parallel to each other, institute
State elevator to be provided with on this elevator can drive described material tray along two guide rod liftings under the driving of described screw mandrel
The lifting block of lifting.Use above structure, drive the rotation of screw mandrel in double guide rod screw mandrel group by motor, can accurately control
The height of material tray lifting.
As preferably: be arranged with the first belt pulley on the output shaft of described motor, described screw mandrel is arranged with
Second belt pulley, is connected by belt between this second belt pulley and described first belt pulley.Use above structure, pass through stepping
Motor and belt pulley transmission mechanism can accurately control the rotation of screw mandrel, it is achieved the accurate control to elevator lifting distance,
And then realize the accurate control to lifting block lifting distance, it is achieved self-feeding.
As preferably: described robot assemblies includes mechanical arm body, rotary mounting seat, is arranged on this rotary mounting seat
And the second telescopic cylinder that described mechanical arm body lifts can be driven, be arranged on described work platforms and described rotation can be driven
Turning the drive mechanism that mounting seat rotates, the second piston rod of one end of described mechanical arm body and described second telescopic cylinder is fixed
Connecting, the other end in this mechanical arm body is provided with downward vacuum cup.Use above structure, by the second telescopic cylinder
Enable mechanical arm body to rotate and to lift with drive mechanism, and realize treating the crawl of welding workpiece by vacuum cup.
As preferably: described drive mechanism includes servomotor and is connected to this servomotor and described rotary mounting seat
Between decelerator.Using above structure, the output shaft of servomotor is rotated mounting seat lifting after decelerator slows down.
As preferably: be provided with finished product conveyer belt on described work platforms.Use above structure, will by mechanical arm body
The finished product welded is transferred on conveyer belt, it is achieved self-emptying.
Compared with prior art, the invention has the beneficial effects as follows:
Use the laser welding aid system that the present invention provides, novel structure, it is easy to accomplish, substantially increase laser welding
The automaticity of processing, reduces the labor intensity of workman, improves welding processing efficiency, and be effectively increased welding matter
Amount, it is ensured that the stability of end product quality, significantly reduces waste product incidence rate, thus reduces production cost, have high
Practicality.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the structural representation of storage device;
Fig. 3 is the cross-sectional view of Fig. 2;
Fig. 4 is work platforms and the assembling schematic diagram of welding pressing table;
Fig. 5 is the cross-sectional view of Fig. 4;
Fig. 6 is the enlarged drawing in Fig. 4 at A;
Fig. 7 is the structural representation of robot assemblies.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the invention will be further described.
As it is shown in figure 1, a kind of laser welding aid system, including work platforms 1, this work platforms 1 is provided with two
Welding pressing table 2, each described welding pressing table 2 is respectively furnished with two storage devices 3, and two storage devices 3 lay respectively at welding
The work platforms 1 of the left and right sides of pressing table 2 is other, and each described storage device 3 is respectively furnished with a robot assemblies 4, this machinery
Arm component 4 is arranged on described work platforms 1, and each robot assemblies 4 will be for will treat in a corresponding storage device 3
The workpiece grabbing of welding is to welding on pressing table 2, and two workpiece to be welded are compressed by each welding pressing table 2 simultaneously, waits
Carrying out laser welding processing, and be provided with finished product conveyer belt 5 on described work platforms 1, laser welding is completed by robot assemblies 4
Finished work-piece grab be transported on this finished product conveyer belt 5 specify position, it is achieved self-emptying.
Referring to Fig. 4~Fig. 6, described welding pressing table 2 includes welding bench body 21 and hold-down mechanism 22, this hold-down mechanism
22 include the first telescopic cylinder 221 being arranged on described work platforms 1 bottom, the first piston bar of this first telescopic cylinder 221
221a connects after passing described work platforms 1 pneumatic briquetting 222, and this pneumatic briquetting 222 has the most horizontal-extending pressing plate
223, this pressing plate 223 is positioned at the surface of described welding bench body 21, is equipped with about two and runs through on described pressing plate 223
Welding groove 223a, the bearing of trend of this welding groove 223a is consistent with the bearing of trend of described pressing plate 223.And at described pneumatic briquetting
222 and the junction of pressing plate 223 be provided with the puff prot 224 for injecting protective gas, the injection direction of this puff prot 224 and institute
The bearing of trend stating pressing plate 223 is consistent.
Refer to Fig. 6, described welding bench body 21 is provided with the alignment pin 211 for positioning workpiece to be welded and limit
Position block 212, by alignment pin 211 and limited block 212 when two panels workpiece to be welded is placed on welding bench body 21, does not haves cunning
Move and displacement, it is ensured that the welding position laminating between two weldments precisely, substantially increases the welding quality of welding finished product.?
Being provided with the deck 213 for positioning described pressing plate 223 on this welding bench body 21, this deck 213 is positioned at outside described pressing plate 223
The underface of end, the bottom width of described deck 213 opening part is identical with the width of described pressing plate 223 outer end, it is ensured that treat
The reliability that welding Work-sheet pressing is spacing.
Referring to Fig. 2 and Fig. 3, described storage device 3 includes base 31, is provided with rotating rotation and stores up on this base 31
Material mechanism 32, this rotation material storage mechanism 32 include rotation dish 321, for the rotary cylinder 322 that drives this rotation dish 321 to rotate with
And be arranged on described rotation dish 321, the material-storing box 323 of two upper openings, two material-storing boxs 323 are symmetrically disposed in and turn
On Moving plate 321, and can under the driving of rotary cylinder 322 rapid interchangeable position.And be provided with in each material-storing box 323 can
The material tray 324 of lifting, is provided with the elevating mechanism 33 for driving this material tray 324 to lift on described base 31.
Referring to Fig. 2 and Fig. 3, described elevating mechanism 33 includes the double guide rod screw mandrel groups 331 being arranged on described base 31
And drive the motor 332 of this pair of guide rod screw mandrel group 331;Described pair of guide rod screw mandrel group 331 includes elevator 331a, setting
Outside framework 331d on described base 331 and be arranged at the screw mandrel 331b on this outside framework 331d and two guide rods
331c, two described guide rod 331c are positioned at the both sides of screw mandrel 331b, and three is parallel to each other, and described elevator 331a is at described silk
Can be provided with on this elevator 331a can drive described material tray 324 along two guide rod 331c lifting under the drive of bar 331b
The lifting block 333 of lifting.The output shaft 332a of described motor 332 is arranged with the first belt pulley 334, at described screw mandrel
It is arranged with the second belt pulley 335, on 331b between this second belt pulley 335 and described first belt pulley 334 by belt 336 even
Connect.
Referring to Fig. 7, described robot assemblies 4 includes mechanical arm body 41, rotary mounting seat 45, is arranged on this rotation peace
On dress seat 45 and the second telescopic cylinder 42 that described mechanical arm body 41 lifts can be driven, be arranged on described work platforms 1
And the drive mechanism 43 that described rotary mounting seat 45 rotates can be driven, this drive mechanism 43 includes servomotor 431 and connects
Decelerator 432 between this servomotor 431 and described rotary mounting seat 45.One end of described mechanical arm body 41 is with described
Second piston rod 42 of the second telescopic cylinder 42 is fixing to be connected, and the other end in this mechanical arm body 41 is provided with downward vacuum
Sucker 44.Mechanical arm body 41 can being rotated by servomotor 431, under the driving of the second telescopic cylinder 42 lift,
And by vacuum cup 44 grabbing workpiece.
Refer to Fig. 3, Fig. 5 and Fig. 7, vacuum cup 44 side of mechanical arm body 41 is provided with the first material detector
61, this first material detector 61 is used for detecting whether vacuum cup 44 has captured workpiece.Welding bench body 21 is provided with
Two the second material detectors 62, this second material detector 62 be used for detecting welding bench body 21 whether be placed with two pieces to be welded
The workpiece connect.Lifting block 333 is provided with 3 material detector 63, and is provided with and this 3 material at material tray 324
The through hole that detector 63 adapts, whether this 3 material detector 63 need in being used for detecting material-storing box 323 to weld workpiece.
Being provided with 4 materials detector 64 on the top of material-storing box 323, this 4 materials detector 64 is for detecting whether by be welded
Workpiece gives rise to treat the position that robot assemblies 4 captures.Described outside framework 331d is provided with upper position-arresting photoelectric sensor 66
With lower position-arresting photoelectric sensor 65, this upper position-arresting photoelectric sensor 66 and lower position-arresting photoelectric sensor 65 are used for detecting elevator
Whether 331a arrives upper position-arresting and lower position-arresting.Housing between upper position-arresting photoelectric sensor 66 and lower position-arresting photoelectric sensor 65
Being provided with preparation position photoelectric sensor 67 on frame 331d, this preparation position photoelectric sensor 67 is used for having detected elevator 331a the most
Lifting block 333 is raised to ready position, makes lifting block 333 and the material tray in the material-storing box 323 filling workpiece to be welded
324 just abut.
The work process of the present invention is as follows:
First all material-storing boxs 323 near work platforms 1 are loaded workpiece the most to be welded, compress for one of them welding
Two robot assemblies 4 of platform 2 service are each inserts on welding pressing table 2 by the workpiece that to be welded, then welding pressing table 2
By two Work-sheet pressings to be welded, then carrying out laser welding processing, after welding processing completes, welding pressing table 2 no longer limits
The finished product that position has been welded, the finished product that welding is completed by one of them robot assemblies 4 grabs finished product conveyer belt 5.In welding
The finished product that pressing table 2 separates with the finished product welded and welding is completed by robot assemblies 4 grabs finished product conveyer belt 5
During, the another one at same work platforms 1 is welded pressing table 2 and is carried out laser welding the most at the same time.I.e. two welding pressures
Tight platform 2 alternately compresses and has good positioning workpiece to be welded, and laser welding processing head is to and fro to treating on two welding pressing tables 2
Welding workpiece carries out laser welding processing, and therefore whole system has only to install a laser welding system, is being greatly saved
While manufacturing cost, still keep high laser welding working (machining) efficiency, there is high practicality.
It is last it should be noted that foregoing description is only the preferred embodiments of the present invention, the ordinary skill people of this area
Member, under the enlightenment of the present invention, on the premise of present inventive concept and claim, can make table as multiple types
Show, within such conversion each falls within protection scope of the present invention.