CN108453386A - End cover of filter flexible automation laser spot welding process units with flexible end cap locator - Google Patents

End cover of filter flexible automation laser spot welding process units with flexible end cap locator Download PDF

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Publication number
CN108453386A
CN108453386A CN201810341679.9A CN201810341679A CN108453386A CN 108453386 A CN108453386 A CN 108453386A CN 201810341679 A CN201810341679 A CN 201810341679A CN 108453386 A CN108453386 A CN 108453386A
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CN
China
Prior art keywords
laser
assembly line
outer ring
end cap
spot welding
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Application number
CN201810341679.9A
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Chinese (zh)
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CN108453386B (en
Inventor
马鹏程
张健
陈贵宾
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Wenzhou University
Huaiyin Normal University
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Wenzhou University
Huaiyin Normal University
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Priority to CN201810341679.9A priority Critical patent/CN108453386B/en
Publication of CN108453386A publication Critical patent/CN108453386A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20Bonding
    • B23K26/21Bonding by welding
    • B23K26/22Spot welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/03Observing, e.g. monitoring, the workpiece
    • B23K26/032Observing, e.g. monitoring, the workpiece using optical means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/04Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
    • B23K26/046Automatically focusing the laser beam
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08Devices involving relative movement between laser beam and workpiece
    • B23K26/083Devices involving movement of the workpiece in at least one axial direction
    • B23K26/0838Devices involving movement of the workpiece in at least one axial direction by using an endless conveyor belt

Abstract

The invention discloses a kind of end cover of filter flexible automation laser spot welding process units with flexible end cap locator, include multi-station turning disk, outer ring feed assembly line, be threadedly coupled plate feed assembly line, laser spot welding lathe and pneumatic pick-off unit, at least four circumference uniform distributions and the circular cone material putting hole of rotation station with the rotation of multi-station turning disk are provided on the multi-station turning disk;The outer ring feed assembly line is for outer ring to be transported in circular cone material putting hole;The described threaded connection plate feed assembly line is located at the rear end station side that outer ring feed assembly line is fed, and is transported to circular cone material putting hole for that will be threadedly coupled plate and is stacked in outer ring;The laser spot welding lathe includes multi-beam laser mash welder, and multi-beam laser mash welder is set to the top of multi-station turning disk and for carrying out laser welding action to material to be welded in circular cone material putting hole, is additionally provided with flexible end cap locator.It is an advantage of the invention that reasonable in design, production efficiency is high, and processing quality is good.

Description

End cover of filter flexible automation laser spot welding production with flexible end cap locator Device
Technical field
The invention belongs to field of laser processing, it is related to a kind of laser welding apparatus, in particular to a kind of with flexible end cap The end cover of filter flexible automation laser spot welding process units of locator.
Background technology
Automobile oil filter belongs to vulnerable part, needs to regularly replace, and as the current automobile industry high speed in China increases Long trend also to increase sharply to the demand of filter year by year.The market demand that this allows for filter is very big, although right It is good news for filter manufacturing enterprise, but wants to meet the huge market demand also simultaneously to filter related industry Production capacity bring great test.
Rotatable filter is gradually the type that domestic main engine plants mainly select at present.The characteristics of such filter is internal Equipped with check-valves, by-passing valve, safety in utilization is higher;And there are one its seal points, and sealing effect simple and reliable for structure is good, Volume production cost is relatively low to save maintenance time and cost with integral replacing.
End cap as in rotatable filter to oil circuit rise connection function important component, in each component of filter for It is more to belong to manufacturing process, the lower component of production automation degree.End cap is mainly connected by end cap outer ring and end cap screw thread Fishplate bar two parts form, and are carried out by way of spot welding after the stamped molding of the two affixed(Such as Fig. 1).The end of rotatable filter Lid is both oil inlet simultaneously and oil outlet, screwed hole of centre connect lubricating oil pump, and the machine oil in oil circuit is entered by centre bore Inside filter, by internal core to oil filtrating after, clean machine oil supplies various from the uniformly distributed aperture in end cap edge Kinematic pair.
As the important component of filter, the production of end cap is at present still in semi-automatic degree.Firstly the need of passing through Manually to filter outer ring and connect orifice plate carry out positive and negative differentiation, then in a manual manner feeding finally by resistance welder pair two Component carries out spot welding.Since heavy dependence is artificial, the daily output of end cap is difficult to improve above-mentioned traditional mode of production mode always, and Longer when due to using resistance-type spot welding, there is the Welder of single products, contact type welding is easy that weldment is made to generate The deformation disadvantages such as cause yields low.Since the presence of above 2 problems seriously limits the raising of filter yield, this The filter market demand is growing now for being great unfavorable factor for associated production enterprise.
For above-mentioned rotatable filter end cap production process the problem of, it would be highly desirable to current production equipment into Row industrial upgrading upgrades to full-automatic production from semi-automation production, solves the bottleneck problem of current filter production, to Filter yield is improved comprehensively.Therefore, the present inventor provides a kind of end cover of filter flexible automation laser point by research and development Process units is welded, is solved the problems, such as well above-mentioned.
Invention content
The purpose of the invention is to overcome shortcoming and defect of the existing technology, and provide a kind of structure design conjunction Reason, production efficiency is high, and the end cover of filter flexible automation laser spot welding with flexible end cap locator that processing quality is good Process units.
To achieve the above object, the technical scheme is that including multi-station turning disk, outer ring feed assembly line, spiral shell Line connecting plate is fed assembly line, laser spot welding lathe and pneumatic pick-off unit, be provided on the multi-station turning disk to Few four circumference uniform distributions and the circular cone material putting hole of rotation station with the rotation of multi-station turning disk;
The outer ring feed assembly line is for outer ring to be transported in circular cone material putting hole;
The threaded connection plate feed assembly line is located at the rear end station side of outer ring feed assembly line feed, for connecting screw thread Fishplate bar is transported to circular cone material putting hole and is stacked on outer ring;
The laser spot welding lathe includes multi-beam laser mash welder, and multi-beam laser mash welder is set to multi-station turning The top of disk simultaneously is used to carry out laser welding action to material to be welded in circular cone material putting hole;
The pneumatic pick-off unit is set to rear end station side of the multi-station turning disk relative to multi-beam laser mash welder, uses It is operated in by the end cover of filter pickup blanking after welding processing in circular cone material putting hole;
The multi-beam laser mash welder includes that laser, lead screw hoistable platform and linkage are installed on lead screw hoistable platform On laser Machining head;
Further setting is between the circular cone material putting hole of welding post on the laser Machining head and multi-station turning disk It is additionally provided with flexible end cap locator, position is located at immediately below laser Machining head axis, which includes locator branch Frame is formed with locating ring, and annular is provided with buffer spring therebetween, is connected with each other between above-mentioned three by connecting bolt.
Further setting is that the outer ring feed assembly line is identical with plate feed pipeline organization is threadedly coupled, and wraps Belt assembly line main body and assembly line driving motor are included and for gripping and being positioned over material in belt assembly line main body Feeding manipulator on circular cone material putting hole.
Further setting is the described outer ring feed assembly line and to be threadedly coupled on plate feed assembly line further include having setting In image identification system and material turnover device in belt assembly line main body, the image identification system includes to be set to Adjustable mounting base above belt assembly line main body, linkage be fixed on CCD industry cameras on adjustable mounting base and Vision judges controller, carries out image recognition to the threaded connection plate of each process or outer ring by CCD industry cameras, and lead to It crosses vision judgement controller and judges its positive and negative, and controller control material turnover device is judged by vision according to the judging result Whether rotary movement is executed;
It includes rotation driving cylinder, material turnover panel and bottom spring stop that further setting, which is the material turnover device, Composition, when material reaches material turnover panel and needs to carry out turning operation, the rotation driving cylinder ventilation in material turnover device, Cylinder rod generates rotary motion along its axis, and the material turnover panel being connected with cylinder rod is by rotation together thus by the spiral shell on assembly line Line connecting plate is dug, be simultaneously in material turnover panel the bottom spring stop of same rotation axis also synchronize dig, bottom Spring stop is sheet metal component made of sheet metal, is connected with the rotary shaft of material turnover panel by torsional spring, in the non-work of material turnover panel Bottom spring stop is close to the assembly line belt surface of belt assembly line main body when making, and material smooth can pass through nothing on assembly line It hinders, when material turnover panel works, its rotary shaft will drive bottom spring stop to dig together, to the material bottom overturn Barrier functionality is played in portion, can prevent material from being slid from material turnover panel section portion in switching process, cause not motion state as expected The case where being overturn.
Further setting is that laser Machining head its inner annular sets that there are six laser coupling heads, corresponding to be drawn with laser Six roots of sensation laser fiber connecting line be connected, the collimation by laser coupling head and focusing make six laser beams in work to be welded Annular is presented in drop point on part surface, to realize the laser spot welding to end cap.
Further setting, which is laser Machining head interior design, has spot pitch control device, the laser coupling head to be fixed on On mobile push plate, mobile push plate rear end is connected with support spring, and mobile push plate coordinates with upper and lower cover plates inner ring sliding slot, can be at it Between slide, mobile push plate front end tilts in gradient and is formed with rectangular recess, mobile push plate front end by the elastic force of support spring come The contact of holding and wedge-shaped guide block lateral surface, its general shape of wedge-shaped guide block are in flat-top hexagonal pyramid type, side wall slope and movement Push plate front end slope is identical, and six sides are all formed with rectangular preiection, can with the fit depressions of mobile push plate front end, It play the guiding role to the movement of mobile push plate, wedge-shaped guide block one end is equipped with adjusting screw rod and can be adjusted by the voussoir of screw rod upper end Upper and lower position of the wedge-shaped guide block of nut control inside laser Machining head.
Further setting is that the laser is connect with laser fiber connecting line optical output respectively by light-dividing device, The light-dividing device includes the first Amici prism, the second Amici prism, third Amici prism, the 4th Amici prism, the 5th light splitting Prism, the first speculum, the second speculum and third speculum, the original incident laser beam projected from laser first pass around Incident initial laser light beam is divided at the beginning of mutually perpendicular two to light beam, with incidence by the first Amici prism, the first Amici prism Reflection of the parallel light beam of beginning laser beam through the first speculum passes through the second Amici prism, the second Amici prism vertical incidence Direction beam energy is 1 with the beam energy of parallel incident direction ratio:2, pass through the second light splitting rib perpendicular to incident direction at this time The light beam directive laser optical splitting joint of mirror completes light splitting, and the light beam for being parallel to incident ray will be by third Amici prism again It is divided into the twice light beam of vertical and horizontal incident beam, it is similar to the above, pass through third Amici prism perpendicular to incident direction Light beam directive laser optical splitting joint complete light splitting, and the light beam that another beam is parallel to incident direction is then anti-by the second speculum It penetrates rear directive laser optical splitting joint and completes light splitting;
It is corresponding after the light splitting of the first Amici prism with the light beam of incident initial laser beam orthogonal first by with it is described There is second Amici prism the 4th Amici prism of identical splitting ratio, the light beam perpendicular to incident ray direction to be emitted directly toward laser Optical splitting joint completes light splitting, and the light beam for being parallel to incident ray is again divided into mutually perpendicular two by the 5th Amici prism Road light beam is completed to be divided wherein the light beam perpendicular to incident ray direction is emitted directly toward laser optical splitting joint, and another Shu Pinghang Directive laser optical splitting joint completes light splitting after the light beam of incident direction is then reflected by third speculum.
Further setting is that the pneumatic pick-off unit movement relies on the pneumatic moving stage of two axis and driving material sucker, from circular cone Finished product end cap is taken out in material putting hole and puts it into the blanking in Storing case.
It is an advantage of the invention that:It can be achieved to the automatic identification of welding assembly positive and negative and amendment, Yi Jishang on assembly line Material, blanking action are full-automatic.Traditional resistance pressure-welding is replaced with multi-beam laser spot welding simultaneously, it is close using laser welding power The features such as degree is high, speed of welding is fast and welding deformation is small further promotes the welding quality and flow line production efficiency of finished product.
In addition, the present invention also sets up flexible end cap locator, will be scratched in the workpiece to be welded of laser spot welding station Property end cap locator further pushed down positioning, ensure the accurate of end cap welding surface and laser focal plane relative position, to reach To optimal laser spot welding effect
Specific advantage explanation is referring to specific implementation mode.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, according to These attached drawings obtain other attached drawings and still fall within scope of the invention.
The welding production schematic diagram of Fig. 1 end cover of filter;
Fig. 2-1 show end cover of filter flexible automation laser spot welding production line overview;
Fig. 2-2 show each block diagram of end cover of filter flexible automation laser spot welding production line;
Fig. 2-3, which is shown, is threadedly coupled plate feed assembly line overall structure view;
Fig. 2-4 show image identification system apparatus structure schematic diagram;
Fig. 2-5 show material turnover device structural schematic diagram;
Fig. 2-6-1 show material turnover device mechanism action schematic diagram;
Fig. 2-6-2 show the schematic diagram at another visual angle of material turnover device mechanism action;
Fig. 2-7 show bottom spring stop structural schematic diagram;
Fig. 2-8 show assembly line feeding manipulator structural schematic diagram;
Fig. 2-9 show multi-beam laser mash welder overall structure diagram;
Fig. 2-10-1 show flexible end cap locator structure schematic diagram;
Fig. 2-10-2 show another viewing angle constructions schematic diagram of flexible end cap locator;
Fig. 3 show multi-beam laser mash welder internal structure schematic diagram;
Fig. 4 show laser Machining head internal structure schematic diagram;
Fig. 5 show laser Machining head internal structure schematic diagram(Hide laser fiber connecting line);
Fig. 6 show spot pitch control device action schematic diagram;
Fig. 7 show the action schematic diagram at another visual angle of spot pitch control device;
Fig. 8 show spot pitch control device internal structure schematic diagram;
Fig. 9 show light splitting optical path overall schematic;
Figure 10 show light splitting optical path and moves towards schematic diagram;
Figure 11 show the pneumatic pick-off unit structural schematic diagram of production line.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing Step ground detailed description.
The direction and position term that the present invention is previously mentioned, for example, "upper", "lower", "front", "rear", "left", "right", "inner", " Outside ", " top ", " bottom ", " side " etc. are only the direction or position of refer to the attached drawing.Therefore, the direction used and position term It is to illustrate and understand the present invention rather than limiting the scope of the invention.
End cover of filter flexible automation laser spot welding production line overview, production line are whole as described in being shown Fig. 2-2 Body is mainly made of shown four major part, respectively:Outer ring is fed assembly line 1, is threadedly coupled plate feed assembly line 2, laser point Welding machine bed 3 and pneumatic pick-off unit 4.Above-mentioned apparatus, which is sequentially connected with, constitutes assembly line entirety, it can be achieved that being welded on assembly line The automatic identification of component positive and negative and amendment and feeding, blanking action are full-automatic.It is replaced simultaneously with multi-beam laser spot welding Traditional resistance pressure-welding is further carried using the features such as laser welding power density is high, speed of welding is fast and welding deformation is small Rise the welding quality and cycle time of finished product.
Welding assembly shown in Fig. 2-2 is carried out certainly by outer ring feed assembly line 1 with plate feed assembly line 2 is threadedly coupled Dynamic feeding.Feeding action is first usually carried out by outer ring feed assembly line 1, after filter outer ring is put in specified station, It is threadedly coupled plate feed assembly line 2 again to overlay threaded connection plate on filter outer ring, is later consolidated the two by welding It connects.Because outer ring feed assembly line 1 and be threadedly coupled plate be fed 2 assembly line overall structure of assembly line it is essentially identical to working method, It is threadedly coupled herein for plate feed assembly line 2 to its overall structure and the detailed narration of workflow progress.
As Figure 2-3 2 overview of assembly line is fed to be threadedly coupled plate.Assembly line is mainly by belt assembly line main body 101, image identification system 102, filter screw thread connecting plate 103, feeding manipulator 104, material turnover device 105 and flowing water Line driving motor 106 forms.Its workflow is as follows, as in Figure 2-4 each filter spiral on belt assembly line 101 Line connecting plate 103 can all pass through the image identification system 102 for being installed on pipelined front side first.Specifically, image recognition system System 102 is made of adjustable mounting base 1022 and CCD industry cameras 1021, by CCD industry cameras 1021 to each warp The filter screw thread connecting plate crossed carries out image recognition, judges its positive and negative rapidly, and CCD works can be finely tuned by adjusting mounting base 1022 The spatial position of industry camera 1021 ensures timely carry out when replacing processing accessory size specification or model in production Adjustment, to obtain better recognition effect.
It is threadedly coupled plate 103 by the end cap of image identification system 102 and subsequently enters object shown in next station i.e. Fig. 2-5 Expect turnover device 105, material turnover device 105 is mainly by rotation driving cylinder 1051, material turnover panel 1052 and bottom spring Baffle 1053 forms.Material turnover device 105 can decide whether to execute overturning according to the recognition result of image identification system 102 Action.The working method of material turnover device 105 is described for executing rotary movement:It is arrived when being threadedly coupled plate 103 When up to designated position, the rotation driving cylinder 1051 in material turnover device 105 is ventilated, and cylinder rod generates rotation fortune along its axis It is dynamic.The material turnover panel 1052 being connected with cylinder rod is by rotation together to the threaded connection plate 103 on assembly line be dug, in this Be in simultaneously with material turnover panel 1052 the bottom spring stop 1053 of same rotation axis also synchronize dig.Bottom as illustrated in figs. 2-7 Portion's spring stop 1053 is sheet metal component made of sheet metal, is connected with the rotary shaft of material turnover panel 1052 by torsional spring, in object Bottom spring stop is close to assembly line belt surface when material turnover panel 1052 does not work, and material can be smooth by without hindrance on assembly line Hinder.When material turnover panel 1052 works, its rotary shaft will drive bottom spring stop 1053 to dig together, to what is overturn Barrier functionality is played in material bottom, can prevent material from being slid from 1052 sections of portions of material turnover panel in switching process, cause not by pre- The case where phase motion state is overturn, mechanism kinematic act as shown in figures 2-6.
The vision judgement controller of the present invention may be used Industry Control host combination image recognition software and be set, and lead to It crosses software and judges that the positive and negative of material is the ordinary skill in the art, it can be directly from market purchasing with integrated vision judgement The industry camera of controller is directly applied, and the present embodiment is no longer described in detail.
It will be according to the demand of production with the plate 103 that is threadedly coupled of material turnover device 105 by image identification system 102 Unified one faces upward, and feeding manipulator 104 will grip end cap and be threadedly coupled plate 103 to the multistation as shown in Fig. 2-9 at this time One of on rotary disk 302 in circular cone material putting hole 303, existing upper one of 303 planted agent of circular cone material putting hole at this time The filter outer ring that outer ring feed streams waterline 1 is put into advance in process, the shape that outer ring is sequentially stacked with both plates are threadedly coupled Formula enters laser spot welding manufacturing procedure with the rotary motion of multi-station turning disk 302.
The revolution of multi-station turning turntable 302 and commercially available traditional multistation filter electric resistance welding equipment described in this patent Disk is similar, and the station that often advances while turntable rotary motion will carry out primary lifting action, it is therefore an objective to end cap be made to weld Fitting is contacted with resistance soldering tip.And laser welding belongs to contactless, originally can carry out letter to the action of multi-station turning turntable 302 Change, but this patent sheet considers that laser welding is more sensitive to the focal plane position of welding surface, still remains station revolution and turn The action that disk 302 is lifted, and the flexible end cap locator 305 as shown in Fig. 2-9 is devised simultaneously, position adds positioned at laser Immediately below foreman's axis.The locator is mainly made of locator bracket 3051 and locating ring 3052 as shown in figs. 2-10, at it Annular is provided with buffer spring between the two, is connected with each other between above-mentioned three by connecting bolt 3053.It can play to circular cone object Expect being reliably fixed for the welding workpiece relative position in putting hole 303, ensures the stable quality of laser welding.Flexible simultaneously sets Meter makes the plastic deformation that the end cap weldment contacted not will produce to improve yields.
It is illustrated in figure 3 the inside composed structure of the laser processing device of multi-beam laser mash welder 301, is swashed as shown in the figure Light processing head 306 is connected with lead screw hoistable platform 308, can be as desired for by the descending operation of lead screw hoistable platform 308 The end cover of filter of different model adjusts focal length to reach optimal laser spot welding effect.Laser Machining head 306 is inside it Structure is as shown in Figure 4 and Figure 5, and 306 inner annular of laser Machining head is set there are six laser coupling head 3062, and corresponding and rear portion is swashed The six roots of sensation laser fiber connecting line 3061 that light device is drawn is connected, the collimation by laser coupling head 3062 and focusing, makes six to swash Annular is presented in light light beam drop point on end cover of filter weldment surface, to realize the laser spot welding to end cap.And consider It is changed to when end cover of filter model, bond pad locations will also change, and 306 interior design of laser Machining head has spot pitch Control device, concrete structure is as shown in Fig. 6, Fig. 7 and Fig. 8.Laser coupling head 3062 is fixed on mobile push plate 3064, mobile 3064 rear end of push plate is connected with support spring, and the upper and lower cover plates inner ring sliding slot in mobile push plate 3064 and Fig. 9 coordinates, can be therebetween Sliding.3064 front end of mobile push plate tilts in constant slope and is formed with rectangular recess, and mobile 3064 front end of push plate is by supporting bullet The elastic force of spring is kept and the contact of wedge-shaped 3063 lateral surface of guide block.Its general shape of wedge-shaped guide block 3063 is in flat-top hexagonal pyramid Type.Its side wall slope is identical as mobile 3064 front end slope of push plate, and six sides are all formed with rectangular preiection, can be with shifting The fit depressions of dynamic 3064 front end of push plate play the guiding role to the movement of mobile push plate 3064.3063 one end of wedge-shaped guide block is set There is adjusting screw rod that can control wedge-shaped guide block 3063 in laser Machining head 306 by the voussoir adjusting nut 3065 of screw rod upper end The upper and lower position in portion.When needing to adjust the spacing of solder joint because changing end cover of filter specification, it is only necessary to which adjusting wedge is adjusted Nut 3065 control the upper and lower position of wedge-shaped guide block 3063 it is ensured that the spacing of six laser coupling heads 3062 can synchronize and it is equal Even increase or diminution.
In view of end cover of filter spot welding needs multiple solder joints, if using multiple lasers as spot welding light source if will make Equipment cost is excessively high, thus the solution of multi-beam laser mash welder 3 described in this patent be by single laser light source into Row obtains the essentially identical laser beam of 6 beam energies after being repeatedly divided, then passes through laser fiber connecting line 3061 and laser processing Laser coupling head 3062 in first 306 is connected, and the mesh of multi-beam laser spot welding is realized under the premise of ensureing relatively low equipment cost 's.The light splitting optical path is as shown in Fig. 8 and Figure 10.The original incident laser beam projected from laser first passes around the first light splitting Incident initial laser light beam is divided at the beginning of mutually perpendicular two to light beam, with incidence by prism 5011, the first Amici prism 5011 Reflection of the parallel light beam of beginning laser beam through the first speculum 5021, passes through the second Amici prism 5012.To ensure to divide per beam The splitting ratio and general splitting ratio of essentially identical second Amici prism of the beam energy that goes out 5012 are 1:1 Amici prism is different, Second Amici prism, 5012 normally incident direction beam energy is 1 with the beam energy of parallel incident direction ratio:2.It is vertical at this time Light splitting is completed by the light beam directive laser optical splitting joint 504 of the second Amici prism 5012 in incident direction.And it is parallel to incidence The light beam of light will be again divided into the twice light beam of vertical and horizontal incident beam by third Amici prism 5013.With it is above-mentioned It is similar, light splitting is completed by the light beam directive laser optical splitting joint 504 of third Amici prism 5013 perpendicular to incident direction, and it is another Directive laser optical splitting joint 504 is completed to divide after a branch of light beam for being parallel to incident direction is then reflected by the second speculum 5022 Light.
It is corresponding logical first with the light beam of incident initial laser beam orthogonal after the light splitting of the first Amici prism 5011 Cross with the second Amici prism 5012 above have identical splitting ratio it is vertical to it is parallel to splitting ratio be 1:2 the 4th Amici prism 5014, the light beam perpendicular to incident ray direction is emitted directly toward laser optical splitting joint 504 and completes light splitting.And it is parallel to incident ray Light beam mutually perpendicular twice light beam is again divided by the 5th Amici prism 5015, wherein perpendicular to incident ray direction Light beam be emitted directly toward laser optical splitting joint 504 and complete light splitting, and the light beam that another beam is parallel to incident direction then passes through third Directive laser optical splitting joint 504 completes light splitting after speculum 5023 reflects.
So far the single light source laser sent out from laser after more than one light splitting of light path and reflection by forming six energy Essentially identical arbitrary source is measured, by the laser fiber connecting line 3061 that is connected with laser optical splitting joint 504 by laser transfer Into laser Machining head 306, finally by the quick spot welding for being used for end cover of filter after collimation, focusing and focusing.
Figure 11 is the pneumatic pick-off unit 4 of production line, and device movement drives material sucker by the pneumatic moving stage 402 of two axis 401, it is automatically performed and takes out finished product end cap from circular cone material putting hole 303 and put it into Storing case 403 a series of takes Part acts.
The Fundamentals of Welding and process of the present invention are as follows:
Two feed assembly lines of production line --- end cap outer ring feed assembly line 1 is threadedly coupled plate feed flowing water with end cap first In line 2, outer ring is fed assembly line 1 and starts to work prior to being threadedly coupled plate feed assembly line 2.The outer ring of end cover of filter passes through first Image identification system 102 carries out it positive and negative identification, and recognition result will determine the object for being located at 102 rear portion of image identification system Whether expecting that turnover device 105 works.It meets the requirements when end cover of filter outer ring is identified through image identification system 102, filter end Lid outer ring will be directly by material turnover device 105, otherwise the outer ring opposite with position is required will pass through material turnover device 105 It is overturn.Device overturning with reset speed can by adjust rotate driving cylinder 1051, come realize reversal rate compared with The faster effect of slow reset speed ensures to have taken into account efficiency while material turnover device 105 has reliable rotary movement.
It is gripped by feeding manipulator by image identification system 102 and the end cover of filter outer ring of material turnover device 105 It one of is positioned on multi-station turning disk 302 in circular cone material putting hole 303, putting hole is integrally suitable in back taper A certain range of diameter change ensures when end cover of filter gauge size is changed without the big of adjusting material putting hole It is small.The revolution turntable 302 often rotates an angle by according to the corresponding intermittent-rotation movement of how much carry out of station thereon Just a station is turned over.
Simultaneously end cap is started to work after being threadedly coupled plate feed assembly line 2 in end cap outer ring feed assembly line 1, end cap It is similar with end cap outer ring to be threadedly coupled circulation of the plate on assembly line, is all that the positive and negative of material is identified by image identification system, Material positive and negative position is modified by material turnover device, end cap, which is finally threadedly coupled plate, by feeding manipulator is put into One of on multi-station turning disk 302 in circular cone material putting hole 303, the difference is that circular cone material putting hole at this time An existing upper process in 303 --- the end cap outer ring that end cap outer ring feed assembly line 1 is placed in advance in, at this moment end cap threaded connection plate To stack on end cap outer ring.Single end cover of filter completes feeding at this time, next enters laser spot welding process.
When the revolution turntable 302 of the production line often rotates a station, enter the filter of laser spot welding station at this time Weldment will further be positioned by flexible end cap locator 305, ensure end cap welding surface position opposite with laser focal plane That sets is accurate, to reach optimal laser spot welding effect.The production line multi-beam laser mash welder 3 is by swashing to single Light source carries out repeatedly light splitting operation and obtains the identical laser beam of multi beam energy and by optical fiber be connected with laser Machining head 306 to reach one Secondary light extraction realizes the effect of multiple spot laser spot welding.
The end cover of filter finished product for completing spot welding is taken out end cap from circular cone material putting hole 303 by pneumatic pick-off unit 4 And it is transferred to corresponding finished product storage position.
So far an end cover of filter finished product is full automatic completes from the positive and negative identification of workpiece, feeding, laser spot welding under A whole set of flow of material, whole process is not necessarily to manual intervention, it can be achieved that end cover of filter uninterrupted production in 24 hours, breaks all the time The industrial bottleneck of filter production, is substantially improved filter rhythm of production, while replacing traditional electricity with the contactless spot welding of laser Resistive pressure welding has also prevented to cause end cap to generate the possibility of undesirable deformation because of external contact, has further increased production efficiency Also improve production yields simultaneously.
One of ordinary skill in the art will appreciate that implement the method for the above embodiments be can be with Relevant hardware is instructed to complete by program, the program can be stored in a computer read/write memory medium, The storage medium, such as ROM/RAM, disk, CD.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly It encloses, therefore equivalent changes made in accordance with the claims of the present invention, is still within the scope of the present invention.

Claims (7)

1. a kind of end cover of filter flexible automation laser spot welding process units with flexible end cap locator, feature exist In:
It include multi-station turning disk(302), outer ring be fed assembly line(1), be threadedly coupled plate be fed assembly line(2), laser point Welding machine bed(3)And pneumatic pick-off unit(4), the multi-station turning disk(302)On be provided at least four circumference uniform distributions And with multi-station turning disk(302)It rotates and the circular cone material putting hole of rotation station(303);
The outer ring is fed assembly line(1)For outer ring to be transported to circular cone material putting hole(303)In;
The threaded connection plate is fed assembly line(2)It is fed assembly line positioned at outer ring(1)The rear end station side of feed, being used for will It is threadedly coupled plate and is transported to circular cone material putting hole(303)And it is stacked on outer ring;
The laser spot welding lathe(3)It include multi-beam laser mash welder(301), multi-beam laser mash welder(301)If It is placed in multi-station turning disk(302)Top and for circular cone material putting hole(303)In material to be welded carry out Laser Welding Connect action;
The pneumatic pick-off unit(4)It is set to multi-station turning disk(302)Relative to multi-beam laser mash welder(301)'s Rear end station side is used for circular cone material putting hole(303)End cover of filter pickup blanking operation after middle welding processing;
The multi-beam laser mash welder(301)Include laser, lead screw hoistable platform(308)And linkage is installed on silk Bar hoistable platform(308)On laser Machining head(306);
The laser Machining head(306)With multi-station turning disk(302)The upper circular cone material putting hole in welding post(303)It Between be additionally provided with flexible end cap locator(305), position is located at laser Machining head(306)Immediately below axis, the locator packet Locator bracket is included(3051)With locating ring(3052)Composition, annular is provided with buffer spring, above-mentioned three therebetween Between pass through connect bolt(3053)It is connected with each other.
2. a kind of end cover of filter flexible automation laser spot welding with flexible end cap locator according to claim 1 Process units, it is characterised in that:The outer ring is fed assembly line(1)It is fed assembly line with plate is threadedly coupled(2)Structure is identical, And include belt assembly line main body(101)And assembly line driving motor(106)With for by belt assembly line main body (101)Upper material grips and is positioned over circular cone material putting hole(303)On feeding manipulator(104).
3. a kind of end cover of filter flexible automation laser spot welding with flexible end cap locator according to claim 2 Process units, it is characterised in that:The outer ring is fed assembly line(1)It is fed assembly line with plate is threadedly coupled(2)On further include It is set to belt assembly line main body(101)On image identification system(102)With material turnover device(105), the figure As identifying system(102)Include to be set to belt assembly line main body(101)The adjustable mounting base of top(1022), linkage it is solid Due to adjustable mounting base(1022)On CCD industry cameras(1021)And vision judges controller, is taken the photograph by CCD industry As head(1021)Image recognition is carried out to the threaded connection plate of each process or outer ring, and judges that controller judges it by vision Positive and negative, and controller control material turnover device is judged by vision according to the judging result(105)Whether rotary movement is executed;
The material turnover device(105)It include rotation driving cylinder(1051), material turnover panel(1052)And bottom bullet Spring baffle(1053)Composition, when material reaches material turnover panel(1052)And when needing to carry out turning operation, material turnover device (105)In rotation drive cylinder(1051)Ventilation, cylinder rod generate rotary motion, the material being connected with cylinder rod along its axis Turnover panel(1052)By rotation together thus by the threaded connection plate on assembly line(103)Dig, simultaneously with material turnover panel (1052)Bottom spring stop in same rotation axis(1053)Also it synchronizes and digs, bottom spring stop(1053)For metal Sheet metal component made of thin slice passes through torsional spring and material turnover panel(1052)Rotary shaft be connected, in material turnover panel(1052)It does not work When bottom spring stop and belt assembly line main body(101)Assembly line belt surface be close to, material smooth can lead on assembly line Cross it is without hindrance, when material turnover panel(1052)Its rotary shaft will drive bottom spring stop when work(1053)It digs together, it is right Barrier functionality is played in the material bottom overturn, can prevent material in switching process from material turnover panel(1052)It slides in section portion It falls, causes the case where motion state is not overturn as expected.
4. a kind of end cover of filter flexible automation laser spot welding with flexible end cap locator according to claim 1 Process units, it is characterised in that:Laser Machining head(306)Its inner annular is set there are six laser coupling head(3062), corresponding The six roots of sensation laser fiber connecting line drawn with laser(3061)It is connected, passes through laser coupling head(3062)Collimation and focusing, Make six laser beams drop point on workpiece surface to be welded that annular be presented, to realize the laser spot welding to end cap.
5. a kind of end cover of filter flexible automation laser spot welder according to claim 4, it is characterised in that:Laser adds Foreman(306)Interior design has spot pitch control device, the laser coupling head(3062)It is fixed on mobile push plate(3064) On, mobile push plate(3064)Rear end is connected with support spring, mobile push plate(3064)Coordinate with upper and lower cover plates inner ring sliding slot, it can It slides therebetween, mobile push plate(3064)Front end tilts in gradient and is formed with rectangular recess, mobile push plate(3064)Front end passes through The elastic force of support spring is kept and wedge-shaped guide block(3063)The contact of lateral surface, wedge-shaped guide block(3063)Its general shape is in flat Push up hexagonal pyramid type, side wall slope and mobile push plate(3064)Front end slope is identical, and to be all formed with rectangle convex for six sides It rises, it can be with mobile push plate(3064)The fit depressions of front end, to mobile push plate(3064)Movement play the guiding role, wedge shape Guide block(3063)One end, which is equipped with adjusting screw rod, can pass through the voussoir adjusting nut of screw rod upper end(3065)The wedge-shaped guide block of control (3063)In laser Machining head(306)Internal upper and lower position.
6. a kind of end cover of filter flexible automation laser spot welding with flexible end cap locator according to claim 5 Process units, it is characterised in that:The laser by light-dividing device respectively with laser fiber connecting line(3061)Light path is defeated Go out connection, which includes the first Amici prism(5011), the second Amici prism(5012), third Amici prism (5013), the 4th Amici prism(5014), the 5th Amici prism(5015), the first speculum(5021), the second speculum (5022)With third speculum(5023), the original incident laser beam projected from laser first passes around the first Amici prism (5011), the first Amici prism(5011)Incident initial laser light beam is divided at the beginning of mutually perpendicular two to light beam, with incidence The parallel light beam of beginning laser beam is through the first speculum (5021)Reflection, pass through the second Amici prism(5012), the second light splitting Prism(5012)Normally incident direction beam energy is 1 with the beam energy of parallel incident direction ratio:2, at this time perpendicular to incidence Direction passes through the second Amici prism(5012)Light beam directive laser optical splitting joint(504)Light splitting is completed, and is parallel to incident light The light beam of line will pass through third Amici prism(5013)It is again divided into the twice light beam of vertical and horizontal incident beam, and it is above-mentioned It is similar, pass through third Amici prism perpendicular to incident direction(5013)Light beam directive laser optical splitting joint(504)Light splitting is completed, And another beam is parallel to the light beam of incident direction then by the second speculum(5022)Directive laser optical splitting joint after reflection(504) Complete light splitting;
It is corresponding through the first Amici prism(5011)Light beam after light splitting with incident initial laser beam orthogonal passes through first With second Amici prism(5012)The 4th Amici prism with identical splitting ratio(5014), perpendicular to incident ray direction Light beam be emitted directly toward laser optical splitting joint(504)Light splitting is completed, and the light beam for being parallel to incident ray passes through the 5th light splitting rib Mirror(5015)It is again divided into mutually perpendicular twice light beam, wherein the light beam perpendicular to incident ray direction is emitted directly toward laser Optical splitting joint(504)Light splitting is completed, and another beam is parallel to the light beam of incident direction then by third speculum(5023)Reflection Directive laser optical splitting joint afterwards(504)Complete light splitting.
7. a kind of end cover of filter flexible automation laser spot welding with flexible end cap locator according to claim 5 Process units, it is characterised in that:Pneumatic pick-off unit(4)It is mobile to rely on the pneumatic moving stage of two axis(402)With driving material sucker (401), from circular cone material putting hole(303)Middle taking-up finished product end cap simultaneously puts it into Storing case(403)In blanking.
CN201810341679.9A 2018-04-17 2018-04-17 Filter end cover flexible automatic laser spot welding production device with flexible end cover positioner Active CN108453386B (en)

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