CN105328338B - A kind of straight line multistation laser-impact connects the devices and methods therefor of sheet metal - Google Patents
A kind of straight line multistation laser-impact connects the devices and methods therefor of sheet metal Download PDFInfo
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- CN105328338B CN105328338B CN201510848287.8A CN201510848287A CN105328338B CN 105328338 B CN105328338 B CN 105328338B CN 201510848287 A CN201510848287 A CN 201510848287A CN 105328338 B CN105328338 B CN 105328338B
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- laser
- cavity plate
- pin
- straight line
- multistation
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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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
-
- 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
- B23K26/18—Working by laser beam, e.g. welding, cutting or boring using absorbing layers on the workpiece, e.g. for marking or protecting purposes
-
- 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
- B23K37/0408—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work for planar work
Abstract
The invention provides the devices and methods therefor that a kind of straight line multistation laser-impact connects sheet metal, the device is made up of laser transmitting system, control system and deformation connection system；The laser transmitting system is made up of base, lens carrier, pulse laser, speculum, adjustable focus lens；The control system is made up of laser controller, computer, hydraulic control system, controllor for step-by-step motor, three-dimensional mobile platform controller；The deformation connection system is made up of flange fixing installation, workpiece system, combined die, automatic switch die device, straight line multistation device, three-dimensional mobile platform.The present invention is used as energy source using pulse laser, realized two layers by combined die or multilayer, of the same race or dissimilar metal thin plate deformation connection, the card knot amount between sheet metal is increased, straight line multistation device realizes the Mulit-point Connection between thin plate, improves bonding strength；Automatic switch die device realizes automatically opening up and closing for cavity plate in the present invention, improves operating efficiency, and when cavity plate is closed, the device has auto-lock function, it is ensured that the precision of deformation connection.
Description
Technical field
The invention belongs to laser machine manufacture and metallic sheet stock deformation interconnection technique field, especially a kind of straight line is more
Station laser-impact connects the devices and methods therefor of sheet metal.
Background technology
With the fast development of modern industrial technology, scientific technological advance makes rapid progress, and pushing away for Manufactured Theory Makes Enli is old
Go out newly, it is more and more that there are light, thin, short, small, multifunctional characteristics micro- part products to be widely used in Aero-Space, precision
The multiple fields such as instrument, biology and medicine equipment, telecommunication electronics and national defence, the miniaturization of product also becomes industrial manufacturing industry
One important trend of development.Simultaneously with keeping on improving micro- part quality in market, in the selection of making material, also get over
More to tend to the Novel lightweight metal material such as high strength steel, aluminium alloy, magnesium alloy.Novel lightweight metal material is with its product
Kind, the diversity of performance, wide applicability and huge application potential, are played increasingly for the development of human society
Big effect.However, traditional metal sheet interconnection technique can not meet the novel metal light sheet applied to micro- part
The growth requirement of material.Two layers or multilayer, of the same race or xenogenesis novel metal thin plate connectivity problem applied to micro- part are resolved,
Quality advance and cost reduction for Modern Industry Products is most important.
The Chinese patent of Application No. 201210284363.3 proposes a kind of composition metal plate welding method, passes through successively
Cross the steps such as bevel, preheating, welding, cooling and realize welding between composition metal plate same metal, the shaping of its welding point
Well, welding defect, tensile strength are high, but this processing method high energy consumption, and welding process complexity causes low production efficiency
Under, and thermal stress deformation is easily caused, reduce the fatigue strength of sheet material.This method is different to coated sheet material, material
Sheet material and more than three layers of multi-layered board, it is difficult to which or welding can not be carried out.The China of Application No. 201210070099.3
Patent proposes a kind of sheet metal riveting method, including two steps of punching and riveting, first respectively in two boards to be riveted
Small one and large one two through holes are gone out on material, the own material of upper sheet material is then pressed onto by the cold extrusion of mould by the riveting of lower sheet material
Connect in hole, so as to reach the purpose of riveting two plates.This method can realize the connection between xenogenesis sheet material, improve riveting
The bonding strength of point, but can not ensure that the different through hole of two radiuses is placed with one heart in riveting process, and need in two boards
Punching is distinguished on material, the sealing of connecting portion is destroyed, while also reducing production efficiency.Application No.
201420428049.2 Chinese patent proposes a kind of box-like mould of valve that connection is deformed for thin plate, passes through punch-pin and cavity plate
Cooperation, the material of two pieces of thin plates flows in extrusion process, forms the interior lock construction mutually inlayed.This method solution
The problem of connecting portion sealing of having determined, the extension of segmental mandrel increases internal modification space, and plate is improved to a certain extent
The bonding strength of material, but being more expensive to manufacture of micro- drift, difficulty are big so that this method is dfficult to apply to metal foil under micro-dimension
The connection of plate material.
The content of the invention
The above mentioned problem existed is connected for sheet metal in the prior art, is swashed the invention provides a kind of straight line multistation
The devices and methods therefor of light impact connection sheet metal, is realized two layers or multilayer, of the same race or dissimilar metal thin plate deformation connect
Connect, this method is without the advance punching on sheet metal to be connected, it is ensured that the sealing of connecting portion, improve production effect
Rate, energy source is used as using pulse laser, it is only necessary to cavity plate, and combined die increases the card knot amount between sheet metal, and directly
Line multistation device realizes the Mulit-point Connection between sheet metal, drastically increases bonding strength.
The present invention is to realize above-mentioned technical purpose by following technological means.
A kind of straight line multistation laser-impact connects the device of sheet metal, it is characterised in that including laser transmitting system,
Control system and deformation connection system；
The laser transmitting system is made up of base, lens carrier, adjustable focus lens, speculum, pulse laser；Thoroughly
Mirror support is fixed on base, and adjustable focus lens are arranged on the laser light on lens carrier and after the reflection of reflected mirror
Lu Shang；
The deformation connection system is by flange fixing installation, workpiece system, automatic switch die device, combined die, straight line multiplexing
Position device, three-dimensional mobile platform composition；Three-dimensional mobile platform is placed in above base；
The straight line multistation device is by objective table, cylindrical guide, stepper motor, shaft coupling, shaft supporting frame, rotating disk, many
Station index plate, movable plate composition；Objective table is fixed on three-dimensional mobile platform center；Two cylindrical guides are respectively and fixedly installed to
At least two bearing blocks are respectively arranged with the both sides of objective table, every cylindrical guide, between bearing block and cylindrical guide
Coordinate for gap；Movable plate is fixed on the bearing block；Multistation index plate is fixed on movable plate lower surface centre；
It is arranged at intervals with the multistation index plate plus N number of arc groove and N+1 bar rectangular channel, wherein N >=2；The rotating disk is by having strong market potential
The back side of nail, semi-disc and connecting rod composition, long pin one end and semi-disc is all threaded hole, and the two ends of connecting rod are machined with
Through hole, centre are threaded hole, and long pin and semi-disc are connected and the long pin by screw with the through hole at connecting rod two ends
Equal with the distance in rectangular channel to the arc groove center of circle with the distance in the semi-disc center of circle, the diameter of long pin is less than the width of rectangular channel
Degree；The semi-disc of rotating disk is placed in the arc groove of multistation index plate and is engaged with arc groove；Stepper motor and shaft supporting frame
It is fixedly mounted on objective table；Stepper motor is connected by shaft coupling with rotary shaft, and rotary shaft passes through connecting rod through shaft supporting frame
Middle screwed hole is connected with rotating disk；
The combined die is made up of cavity plate pedestal, cavity plate end cap, cavity plate pull bar；Cavity plate pedestal is in " several " word shape, recessed
The bottom of mold base is fastened on movable plate by screw, and cavity plate pedestal upper surface is provided with two parallel grooves, cavity plate end cap
Bottom is assemblied in the groove of cavity plate pedestal provided with two parallel guide rails, the guide rail of cavity plate end cap bottom；Cavity plate end cap upper table
Face is provided with N number of aperture as fovea superior die cavity, and N number of aperture is equally spaced and the distance between two neighboring aperture is more than aperture chi
It is very little, and the center of N number of aperture and the center of circle of N number of arc groove on multistation index plate are located at same straight line in vertical direction
On；In the center of cavity plate end cap provided with the front and rear rectangular channel communicated as recessed die cavity, cavity plate end cap both sides are provided with symmetrical
Cavity plate pull bar, cavity plate end cap is formed by two pieces of symmetrical end-cap assemblies docking, and two cavity plate pull bars are located at two pieces of ends respectively
On cap assemblies；
The automatic switch die device is double by substrate, right stock, right quarter butt, pin, left quarter butt, left stock, sliding block, single pole
Acting cylinder is constituted；Substrate is fixedly mounted on movable plate, and pin hole and rectangular opening, rectangle are machined with the axis of substrate
The both sides inwall in hole is provided with chute；The sliding block both sides are less than the slide rail of rectangular block, the slide rail and base of sliding block both sides provided with thickness
Chute on plate carries out gap cooperation；Single pole double acting hydraulic cylinder is located at the rectangular opening of substrate and is fixed on movable plate, single
The piston rod of bar double acting hydraulic cylinder is connected with sliding block；Pin is arranged in the pin hole on substrate, right quarter butt, the one of left quarter butt
End is jointly on pin, and can be rotated around pin；Right stock, one end of left stock are articulated with sliding block jointly, right
Quarter butt, the other end difference hinge of left quarter butt constitute a planar linkage mechanism on right stock, left stock, and right quarter butt,
The length that left quarter butt, right stock and left stock constitute planar linkage mechanism part is met：It may be such that two
The upper end edge of long connecting rod that horizontal direction is for linear motion, and the AB is the length of left quarter butt, and C and D are respectively the two of left stock
Individual end points, wherein C are the pin joint of left stock and right stock, and B is the pin joint of left quarter butt and left stock, and BC is left stock and the right side
Distance between the pin joint of the pin joint of stock and left quarter butt and left stock, BD is the pin joint and left length of left quarter butt and left stock
Distance between another end points of bar；The cavity plate pull bar of right stock, the other end of left stock respectively with combined die two ends is mutually cut with scissors
Connect；
The workpiece system is by the restraint layer being arranged in order from top to bottom, absorbed layer, the first sheet metal and the second gold medal
Metal thin plate is constituted；Workpiece system is placed on combined die, fixed by the flange fixing installation being fixed on movable plate；
The control system is by laser controller, computer, hydraulic control system, controllor for step-by-step motor, three-dimensional movement
Platform controller is constituted；The laser controller, hydraulic control system, controllor for step-by-step motor and three-dimensional mobile platform controller
It is connected with computer；The laser controller is connected with pulse laser, the work shape for controlling pulse laser
State；Three-dimensional mobile platform controller is connected with three-dimensional mobile platform, for controlling three-dimensional mobile platform to make planar movement；The step
Stepper motor controller is connected with stepper motor, is rotated forward or backwards for controlling stepper motor to make intermittence；The hydraulic pressure control
System processed is connected with single pole double acting hydraulic cylinder, for controlling the flexible of single pole double acting hydraulic cylinder.
Further, described combined die size is 5mm × 5mm × 5mm, the section of the fovea superior die cavity to be circular or
Rectangle, the cross sectional dimensions of recessed die cavity is 3mm × 0.3mm, and matrix cavity is combined composition integral concave mould chamber up and down.
Further, the channel section of cavity plate pedestal upper surface is swallow-tail form, and the guide rail section of cavity plate end cap bottom is
Swallow-tail form.
Further, one end of the right stock, left stock by pin-hinges on sliding block, or be articulated with it is described
On the bearing pin of sliding block one.
The method that straight line multistation laser-impact connects sheet metal, specifically includes following steps：
S1. the objective table in straight line multistation device is fixedly mounted in three-dimensional mobile platform, cylindrical guide is arranged on
The both sides of objective table, stepper motor is connected by shaft coupling with rotary shaft, and rotary shaft is connected through shaft supporting frame with rotating disk, stepping
Motor is arranged on objective table with shaft supporting frame by trip bolt, and multistation index plate is fixedly mounted on the lower surface of movable plate
Centre, the arc groove of multistation index plate is engaged with the semi-disc on rotating disk, and movable plate is fixedly mounted on cylindrical guide
On bearing block；
S2. after the sliding block in automatic switch die device is connected with the piston rod of single pole double acting hydraulic cylinder, sliding block loads
In chute on substrate, single pole double acting hydraulic cylinder is placed at the rectangular opening on substrate, by screwed hole by substrate and single pole
Double acting hydraulic cylinder is fixed in straight line multistation device, and pin is fitted into the pin hole of substrate, and short connecting rod and long connecting rod pass through
After hinge is connected, one end of two short connecting rods is connected with pin jointly, one end of two long connecting rods is hinged with sliding block jointly；Will
Combined die is fixedly mounted in straight line multistation device, in automatic switch die device the upper end of two long connecting rods by hinge with
Cavity plate pull bar in combined die is connected；
S3. workpiece system is placed on combined die, and flange fixing installation applies pressure-pad-force to workpiece system；By laser controller,
Hydraulic control system, controllor for step-by-step motor and three-dimensional mobile platform controller are connected with computer；Pass through computer control
Controllor for step-by-step motor processed, controllor for step-by-step motor control stepper motor is rotated, and drives the rotating disk to be rotated in arc groove, when
The long pin is transferred to after the rectangular channel beside arc groove, and the long pin rotated with the rotating disk drives movable plate in the horizontal direction
Upper movement, the first station is adjusted to by the position for deforming connection system；Controlled using computer by three-dimensional mobile platform controller
The movement of three-dimensional mobile platform so that first aperture of cavity plate end cap upper surface is centrally located on laser optical path；
S4. adjust on speculum and adjustable focus lens, the Laser Focusing that pulse laser is sent to workpiece system, swash
Light is reached through transparent restraint layer absorbs layer surface, absorbed layer surface portion be vaporized and ionize after generation HTHP etc. from
Daughter, plasma rapidly outside splash expansion, its reaction force can form strong shock wave, in strong shock wave and combined die
Collective effect under, double layer of metal thin plate occur hypervelocity plastic deformation, so as to complete the connection at first tie point；Complete the
After connection at one tie point, the rotating disk in straight line multistation device carries out intermittent positive turn under the driving of stepper motor
It is dynamic, the position for deforming connection system is adjusted to next station, pulse laser sends the company at the next tie point of laser completion
Connect；
S5. complete after the connection at N number of tie point, flange fixing installation sheds pressure-pad-force；Computer controls hydraulic control system,
The piston rod of hydraulic control system control single pole double acting hydraulic cylinder heads on sliding block and moved upwards, that is, controls automatic switch die device
Automatically open up the cavity plate end cap of combined die；Take out the workpiece system machined；Computer sends finger to hydraulic control system
Order, hydraulic control system control single pole double acting hydraulic cylinder is moved downwardly together with sliding block, and control automatic switch die device is automatic
Close the cavity plate end cap of combined die；
S6. new workpiece system is put on combined die, flange fixing installation applies pressure-pad-force to new workpiece system；Pulse
Laser sends the laser-impact connection sheet metal process on laser completion N stations；Rotating disk in straight line multistation device
Intermittence is carried out under the reverse drive of stepper motor to rotate backward, and the position for deforming connection system is adjusted to N-1 works respectively
Position, until the first station, pulse laser sends the connection that laser is sequentially completed N-1 to first tie point；Flange fixing installation
Shed pressure-pad-force；Control automatic switch die device automatically opens up combined die；Take out the workpiece system machined；Control is automatic
Switch die device closes combined die automatically；The sheet metal cycle is connected hence into next laser-impact.
The beneficial effects of the invention are as follows：
The present invention is used as energy source using pulse laser, it is only necessary to cavity plate, realized two layers by combined die or multilayer,
Of the same race or xenogenesis novel metal thin plate deformation connection, the integral concave mould chamber of combined die is to be multiple in the recessed of "convex" shaped shape
Chamber, it is ensured that larger card knot amount between two layers or multilayer metal foil, its bonding strength is higher；Automatic switch mould in the present invention
Device can realize the automatic die sinking and automatic closure of cavity plate, improve the operating efficiency of device, when cavity plate is closed, single pole is double
Acting cylinder make it that automatic switch die device has auto-lock function, it is ensured that the precision of sheet metal deformation connection；The present invention
Cathetus multistation device is realized just can complete Mulit-point Connection to sheet metal progress clamped one time, further increase strong
Degree.
Brief description of the drawings
Fig. 1 is the structural representation that a kind of straight line multistation laser-impact of the invention connects sheet metal device；
Fig. 2 is the overall three dimensional structure diagram of cathetus multistation device of the present invention；
Fig. 3 is the interior three-dimensional structural representation of cathetus multistation device of the present invention；
Fig. 4 is the three dimensional structure diagram of combined die in the present invention；
Fig. 5 is the structural representation of automatic switch die device in the present invention；
Fig. 6 is the three dimensional structure diagram of substrate in automatic switch die device in the present invention；
Fig. 7 is the sectional view before workpiece system processing in the present invention；
Fig. 8 is the sectional view after workpiece system processing in the present invention.
In figure：
1- bases；2- three-dimensional mobile platforms；3- straight line multistation devices；4- combined dies；5- automatic switch die devices；6-
Workpiece system；7- flange fixing installations；8- lens carriers；9- adjustable focus lens；10- speculums；11- pulse lasers；12- laser
Controller；13- computers；14- hydraulic control systems；15- controllor for step-by-step motor；16- three-dimensional mobile platform controllers；17-
Restraint layer；18- absorbed layers；The sheet metals of 19- first；The sheet metals of 20- second；21- cavity plate pedestals；22- cavity plate end caps；23-
Cavity plate pull bar；24- substrates；The right stocks of 25-；The right quarter butts of 26-；27- pins；The left quarter butts of 28-；The left stocks of 29-；30- sliding blocks；31-
Single pole double acting hydraulic cylinder；32- objective tables；33- cylindrical guides；34- stepper motors；35- shaft couplings；36- shaft supporting frames；37-
Rotating disk；38- multistation index plates；39- movable plates.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further illustrated, but protection scope of the present invention is simultaneously
Not limited to this.
As shown in figure 1, straight line multistation laser-impact of the present invention connects the structure of sheet metal device, including swash
Light emission system, control system, deformation connection system.The laser transmitting system is saturating by base 1, lens carrier 8, adjustable focus
Mirror 9, speculum 10, pulse laser 11 are constituted；Lens carrier 8 is fixed on base 1, and adjustable focus lens 9 are arranged on lens
On support 8 and on the laser optical path after the reflection of reflected mirror 10.The laser that pulse laser 11 is sent passes through speculum 10
Reflex and adjustable focus lens 9 focussing force, irradiation arrive the surface of workpiece system 6；The vertical bar of lens carrier 8 with
Horizon bar is connected by trip bolt, and unscrewing horizon bar after screw can move along vertical bar direction, so as to realize adjustment laser
The purpose of spot size.
The deformation connection system is by flange fixing installation 7, workpiece system 6, automatic switch die device 5, combined die 4, straight line
Multistation device 3, three-dimensional mobile platform 2 are constituted.Three-dimensional mobile platform 2 is placed in the top of base 1；Workpiece system 6 is by from top to bottom
Restraint layer 17, absorbed layer 18, the first sheet metal 19 and the second sheet metal 20 being arranged in order are constituted；Workpiece system 6 is put
Put on combined die 4, by the effect of flange fixing installation 7, be fixed on combined die 4；Combined die 4 is tight by Positioning screw
Gu in straight line multistation device 3, and by hinge by the monosymmetric cavity plate pull bar 23 of cavity plate end cap 22 and automatic switch mould
Left and right long connecting rod in device 5 is connected；Substrate 24 in automatic switch die device 5 passes through positioning with single pole double acting hydraulic cylinder 31
Screw is fastened in straight line multistation device 3；Straight line multistation device 3 is arranged in three-dimensional mobile platform 2 by trip bolt
Centre.
As shown in Fig. 2 the straight line multistation device 3 is by objective table 32, cylindrical guide 33, stepper motor 34, shaft coupling
35th, shaft supporting frame 36, rotating disk 37, multistation index plate 38, movable plate 39 are constituted；Objective table 32 is fixed on three-dimensional mobile platform 2
Center；Two cylindrical guides 33 are respectively and fixedly installed to be respectively arranged with two axles on the both sides of objective table 32, every cylindrical guide 33
Fulcrum bearing is held, coordinates between bearing block and cylindrical guide 33 for gap, enables bearing block on cylindrical guide 33
Slide.As shown in figure 3, movable plate 39 is fixed on the bearing block；The section of multistation index plate 38 is T-shape,
Hole is threaded on the wing plate of multistation index plate 38, multistation index plate 38 is fixed by the screwed hole and screw on wing plate
In the lower surface centre of movable plate 39；3 arc grooves and 4 rectangular channels are machined with the web of the multistation index plate 38,
Arc groove is spaced apart with rectangular channel；Three arc grooves correspond to three processing stations, and the first station, are followed successively by from front to back
Two stations and 3rd station.The rotating disk 37 is made up of long pin, semi-disc and connecting rod, the back of the body of long pin one end and semi-disc
Face is all threaded hole, and the two ends of connecting rod are machined with through hole, centre and are threaded hole, and long pin and semi-disc pass through screw
It is connected with the through hole at connecting rod two ends and the long pin and the distance and the distance of rectangular channel to the arc groove center of circle in the semi-disc center of circle
Equal, the diameter of long pin is less than the width of rectangular channel；The semi-disc of rotating disk 37 is placed in the arc groove of multistation index plate 38,
And be engaged with arc groove；Stepper motor 34 is fixedly mounted on objective table 32 with shaft supporting frame 36；Stepper motor 34 passes through connection
Axle device 35 is connected with rotary shaft, and rotary shaft is threadedly coupled through shaft supporting frame 36 by the screwed hole in the middle of connecting rod with rotating disk 37.
Coordinate between rotary shaft and shaft supporting frame 36 for gap, it is ensured that rotary shaft can be rotated freely.
As shown in figure 4, the combined die 4 is made up of cavity plate pedestal 21, cavity plate end cap 22, cavity plate pull bar 23；Combination is recessed
The size of mould 4 is 5mm × 5mm × 5mm.Cavity plate pedestal 21 is in " several " word shape, and the bottom of cavity plate pedestal 21 is machined with two positioning spiral shells
Nail, the bottom of cavity plate pedestal 21 is fastened on movable plate 39 by screw, the upper surface of cavity plate pedestal 21 be provided with two it is parallel,
Section is the groove of swallow-tail form, and the bottom of cavity plate end cap 22 is provided with two parallel, the guide rails that section is swallow-tail form, cavity plate end cap 22
The guide rail of bottom is assemblied in the groove of cavity plate pedestal 21；The upper surface of cavity plate end cap 22 is provided with 3 apertures as fovea superior die cavity, 3
Individual aperture is equally spaced and the distance between two neighboring aperture is more than orifice size, and center and the multistation point of 3 apertures
The center of circle of 3 arc grooves on degree plate 38 is located on the same line in vertical direction.Aperture is circular or rectangle, and size is all
For 0.5mm.In the center of cavity plate end cap 22 provided with the front and rear rectangular channel communicated as recessed die cavity, the cross section chi of recessed die cavity
Very little is 3mm × 0.3mm.Fovea superior die cavity, recessed die cavity are combined composition integral concave mould chamber, and integral concave mould chamber is to be multiple in " convex " word
The cavity of shape.The both sides of cavity plate end cap 22 are provided with symmetrical cavity plate pull bar 23, and cavity plate end cap 22 is by two pieces of symmetrical end caps
Component docking is formed, and two cavity plate pull bars 23 are located on two pieces of end-cap assemblies respectively, and combined die 4 is drawn by this pair of cavity plates
Bar 23 is connected with automatic switch die device 5.
As shown in figure 5, the automatic switch die device 5 is by substrate 24, right stock 25, right quarter butt 26, pin 27, left quarter butt
28th, left stock 29, sliding block 30, single pole double acting hydraulic cylinder 31 are constituted.Substrate 24 is fixedly mounted on movable plate by Positioning screw
On 39, its shape is as shown in fig. 6, be machined with pin hole and rectangular opening on the axis of substrate 24, the both sides inwall of rectangular opening is opened
There is chute.The sliding block 30 is rectangular block, and rectangular block both sides are provided with slide rail, slide rail and the chute on substrate 24 of the both sides of sliding block 30
Carry out gap cooperation.Single pole double acting hydraulic cylinder 31 is located at the rectangular opening of substrate 24 and is fixed on movement by Positioning screw
On plate 39, the piston rod of single pole double acting hydraulic cylinder 31 is connected with sliding block 30.Pin 27 is installed in pin hole on substrate 24,
Right quarter butt 26, one end of left quarter butt 28 are mounted on pin 27, and can rotated around pin 27 jointly；Right stock 25, left length
One end of bar 29 is articulated with sliding block 30 jointly, and right quarter butt 26, the other end of left quarter butt 28 distinguish hinge in right stock 25, left length
On bar 29, a planar linkage mechanism is constituted.And right quarter butt 26, left quarter butt 28, right stock 25 and left stock 29 constitute flat
The length of face linkage portion is met：It may be such that the upper end edge of two long connecting rods horizontal direction and makees straight line
Motion.The cavity plate pull bar 23 of right stock 25, the other end of left stock 29 respectively with the two ends of combined die 4 is hinged.Automatic switch
The stretching motion of piston rod in single pole double acting hydraulic cylinder 31 is changed into two long connecting rod upper ends in the horizontal direction by die device 5
Linear motion so that in control combination cavity plate 4 cavity plate end cap 22 opening and closing.In the present embodiment, on the sliding block 30
Provided with bearing pin, the right stock 25, left stock 29 are articulated with the bearing pin of the one of sliding block 30.
The control system coordinates the modules of control laser transmitting system and deformation connection system；Control system is by swashing
Optical controller 12, computer 13, hydraulic control system 14, controllor for step-by-step motor 15, three-dimensional mobile platform controller 16 are constituted；
The laser controller 12, hydraulic control system 14, controllor for step-by-step motor 15 and three-dimensional mobile platform controller 16 with meter
Calculation machine 13 is connected；The laser controller 12 is connected with pulse laser 11, the work for controlling pulse laser 11
State；Three-dimensional mobile platform controller 16 is connected with three-dimensional mobile platform 2, for controlling three-dimensional mobile platform 2 to make planar movement；
The controllor for step-by-step motor 15 is connected with stepper motor 34, turns forward or backwards for controlling stepper motor 34 to make intermittence
It is dynamic；The hydraulic control system 14 is connected with single pole double acting hydraulic cylinder 31, for controlling stretching for single pole double acting hydraulic cylinder 31
Contracting, to control the state of automatic switch die device 5.
The method that a kind of straight line multistation laser-impact of the present invention connects sheet metal, specifically includes following steps：
S1. the objective table 32 in straight line multistation device 3 is fixedly mounted in three-dimensional mobile platform 2, cylindrical guide 33
Installed in the both sides of objective table 32, stepper motor 34 is connected by shaft coupling 35 with rotary shaft, and rotary shaft passes through shaft supporting frame 36
It is connected with rotating disk 37, stepper motor 34 is arranged on objective table with shaft supporting frame 36 by trip bolt, multistation index plate 38
The lower surface centre of movable plate 39 is fixedly mounted on, arc groove and the semi-disc on rotating disk 37 of multistation index plate 38 match
Close, movable plate 39 is fixedly mounted on the bearing block of cylindrical guide 33；
S2. after the sliding block 30 in automatic switch die device 5 is connected with the piston rod of single pole double acting hydraulic cylinder 31, sliding block
30 are fitted into the chute on substrate 24, and single pole double acting hydraulic cylinder 31 is placed at rectangular opening on substrate 24, passes through screwed hole
Substrate 24 and single pole double acting hydraulic cylinder 31 are fixed in straight line multistation device 3, pin 27 loads the pin hole of substrate 24
In, after short connecting rod is connected with long connecting rod by hinge, one end of two short connecting rods is connected with pin 27 jointly, two long connecting rods
One end be hinged jointly with sliding block 30；Combined die 4 is fixedly mounted in straight line multistation device 3, automatic switch die device 5
In the upper ends of two long connecting rods be connected by hinge with the cavity plate pull bar 23 in combined die 4；
S3. workpiece system 6 is placed on combined die 4, and flange fixing installation 7 applies pressure-pad-force to workpiece system 6；By laser controlling
Device 12, hydraulic control system 14, controllor for step-by-step motor 15 and three-dimensional mobile platform controller 16 are connected with computer 13；
Controllor for step-by-step motor 15 is controlled by computer 13, the control stepper motor 34 of controllor for step-by-step motor 15 is rotated, driven described
Rotating disk 37 rotates in arc groove, after the long pin is transferred to the rectangular channel beside arc groove, is rotated with the rotating disk 37
Long pin drives movable plate 38 to move in the horizontal direction, and the position for deforming connection system is adjusted into the first station；Utilize calculating
Machine 13 passes through the movement that three-dimensional mobile platform controller 16 controls three-dimensional mobile platform 2 so that the of the upper surface of cavity plate end cap 22
One aperture is centrally located on laser optical path；
S4. speculum 10 and adjustable focus lens 9, the Laser Focusing that pulse laser 11 is sent to workpiece system are adjusted
On 6, the transparent restraint layer 17 of laser light reaches the surface of absorbed layer 18, and the surface portion of absorbed layer 18 is produced after being vaporized and ionizing
HTHP plasma, plasma rapidly outside splash expansion, its reaction force can form strong shock wave, in thump
Under the collective effect of ripple and combined die 4, hypervelocity plastic deformation occurs for double layer of metal thin plate, so as to complete at first tie point
Connection；Complete after the connection at first tie point, driving of the rotating disk 37 in straight line multistation device 3 in stepper motor 34
Lower progress intermittence is rotated forward, and the position for deforming connection system is adjusted into the second station and 3rd station, pulse laser respectively
Device 11 sends the connection at laser completion second and the 3rd tie point successively；
S5. complete after the connection at 3 tie points, flange fixing installation 7 sheds pressure-pad-force；The control hydraulic control of computer 13 system
System 14, the piston rod of the control of hydraulic control system 14 single pole double acting hydraulic cylinder 31 head on the motion upwards of sliding block 30, i.e. control from
Dynamic switch die device 5 automatically opens up the cavity plate end cap 22 of combined die 4；Take out the workpiece system 6 machined；Computer 13 to
Hydraulic control system 14 sends instruction, and the control single pole of hydraulic control system 14 double acting hydraulic cylinder 31 is transported downwardly together with sliding block 30
Dynamic, control automatic switch die device 5 closes the cavity plate end cap 22 of combined die 4 automatically；
S6. new workpiece system 6 is put on combined die 4, the new workpiece system 6 of 7 pairs of flange fixing installation applies pressure-pad-force；
Pulse laser 11 sends the laser-impact connection sheet metal process in laser completion 3rd station；Straight line multistation device 3
In rotating disk 37 intermittence carried out under the reverse drive of stepper motor 34 rotate backward, the position of connection system will be deformed respectively
The second station and the first station are adjusted to, pulse laser 11 sends the sheet metal of laser-impact connection twice after the completion of laser successively
Process；Flange fixing installation 7 sheds pressure-pad-force；Control automatic switch die device 5 automatically opens up combined die 4；Take out what is machined
Workpiece system 6；Automatic switch die device 5 is controlled to close combined die 4 automatically；Metal is connected hence into next laser-impact
The thin plate cycle.
Fig. 7 and Fig. 8 are respectively that a kind of straight line multistation laser-impact is connected in sheet metal device before workpiece system processing
Sectional view afterwards, its specific process is as follows：
The laser that pulse laser 11 is sent arrives workpiece system by the effect irradiation of reflective mirror 10 and adjustable focus lens 9
On 6, the transparent restraint layer 17 of laser light reaches the surface of absorbed layer 18, and the surface portion of absorbed layer 18 is produced after being vaporized and ionizing
HTHP plasma, plasma rapidly outside splash expansion, its reaction force can form strong shock wave.In thump
Under the collective effect of ripple and combined die 4, hypervelocity plastic deformation occurs for two layers of thin plate.As shown in figure 8, two layers of thin plate after processing
Between card knot amount it is big, bonding strength is high.
It has also been devised automatic switch die device 5 and straight line multistation device 3 in the present invention, automatic switch die device 5 can be with
Automatically opening up and closing automatically for combined die 4 is realized, the operating efficiency of device is improved.When combined die 4 is closed, single pole
Double acting hydraulic cylinder 31 make it that automatic switch die device 5 has auto-lock function, it is ensured that the precision of sheet metal deformation connection.Directly
Line multistation device 3 is realized just can complete Mulit-point Connection to sheet metal progress clamped one time, further increase connection strong
Degree.
For the present invention preferred embodiment, but the present invention is not limited to above-mentioned embodiment to the embodiment, not
In the case of the substance of the present invention, any conspicuously improved, replacement that those skilled in the art can make
Or modification belongs to protection scope of the present invention.
Claims (5)
1. a kind of straight line multistation laser-impact connects the device of sheet metal, it is characterised in that including laser transmitting system, control
System processed and deformation connection system；
The laser transmitting system is by base (1), lens carrier (8), adjustable focus lens (9), speculum (10), pulse laser
Device (11) is constituted；Lens carrier (8) is fixed on base (1), and adjustable focus lens (9) are arranged on lens carrier (8) and position
In on the laser optical path after reflected mirror (10) reflection；
It is described deformation connection system by flange fixing installation (7), workpiece system (6), automatic switch die device (5), combined die (4),
Straight line multistation device (3), three-dimensional mobile platform (2) composition；Three-dimensional mobile platform (2) is placed in above base (1)；
The straight line multistation device (3) is by objective table (32), cylindrical guide (33), stepper motor (34), shaft coupling (35), axle
Support frame (36), rotating disk (37), multistation index plate (38), movable plate (39) composition；Objective table (32) is fixed on three-dimensional movement
Platform (2) center；Two cylindrical guides (33) are respectively and fixedly installed on the both sides of objective table (32), every cylindrical guide (33)
At least two bearing blocks are respectively arranged with, are coordinated between bearing block and cylindrical guide (33) for gap；Movable plate (39) is solid
It is scheduled on the bearing block；Multistation index plate (38) is fixed on movable plate (39) lower surface centre；The multistation
It is arranged at intervals with index plate (38) plus N number of arc groove and N+1 bar rectangular channel, wherein N >=2；The rotating disk (37) by long pin,
Semi-disc and connecting rod composition, the back side of long pin one end and semi-disc are all threaded hole, and the two ends of connecting rod are machined with logical
Hole, centre are threaded hole, long pin and semi-disc be connected by screw with the through hole at connecting rod two ends and the long pin with
The distance in the semi-disc center of circle is equal with the distance in rectangular channel to the arc groove center of circle, and the diameter of long pin is less than the width of rectangular channel；
The semi-disc of rotating disk (37) is placed in the arc groove of multistation index plate (38) and is engaged with arc groove；Stepper motor (34)
It is fixedly mounted on shaft supporting frame (36) on objective table (32)；Stepper motor (34) is connected by shaft coupling (35) with rotary shaft,
Rotary shaft is connected through shaft supporting frame (36) by the screwed hole in the middle of connecting rod with rotating disk (37)；
The combined die (4) is made up of cavity plate pedestal (21), cavity plate end cap (22), cavity plate pull bar (23)；Cavity plate pedestal (21)
In " several " word shape, the bottom of cavity plate pedestal (21) is fastened on movable plate (39) by screw, cavity plate pedestal (21) upper surface
Two parallel grooves are provided with, cavity plate end cap (22) bottom is provided with two parallel guide rails, the guide rail of cavity plate end cap (22) bottom
In the groove for being assemblied in cavity plate pedestal (21)；Cavity plate end cap (22) upper surface is provided with N number of aperture as fovea superior die cavity, N number of aperture
It is equally spaced and the distance between two neighboring aperture is more than orifice size, and center and the multistation index plate of N number of aperture
(38) center of circle of N number of arc groove on is located on the same line in vertical direction；It is provided with the center of cavity plate end cap (22)
The front and rear rectangular channel communicated is provided with symmetrical cavity plate pull bar (23), cavity plate as recessed die cavity, cavity plate end cap (22) both sides
End cap (22) is formed by two pieces of symmetrical end-cap assembly docking, and two cavity plate pull bars (23) are located at two pieces of end-cap assemblies respectively
On；
The automatic switch die device (5) is by substrate (24), right stock (25), right quarter butt (26), pin (27), left quarter butt
(28), left stock (29), sliding block (30), single pole double acting hydraulic cylinder (31) composition；Substrate (24) is fixedly mounted on movable plate
(39) on, pin hole and rectangular opening are machined with the axis of substrate (24), the both sides inwall of rectangular opening is provided with chute；The cunning
Block (30) both sides are provided with slide rail, and the slide rail and the chute on substrate (24) of sliding block (30) both sides carry out gap cooperation；Single pole double cropping
It is located at the rectangular opening of substrate (24) and is fixed on movable plate (39), single pole double acting hydraulic cylinder (31) with hydraulic cylinder (31)
Piston rod be connected with sliding block (30)；Pin (27) is arranged in the pin hole on substrate (24), right quarter butt (26), left quarter butt
(28) one end is jointly on pin (27), and can be rotated around pin (27)；Right stock (25), left stock (29)
One end is articulated with sliding block (30) jointly, and right quarter butt (26), the other end difference hinge of left quarter butt (28) are in right stock (25), a left side
On stock (29), a planar linkage mechanism, and right quarter butt (26), left quarter butt (28), right stock (25) and left length are constituted
The length that bar (29) constitutes planar linkage mechanism part is met：It may be such that the upper end edge dampening of two long connecting rods
Square to for linear motion, the AB is the length of left quarter butt (28), and C and D are respectively two end points of left stock (29), wherein
C is the pin joint of left stock (29) and right stock (25), and B is the pin joint of left quarter butt (28) and left stock (29), and BC is left length
Distance between the pin joint of the pin joint and left quarter butt (28) and left stock (29) of bar (29) and right stock (25), BD is left quarter butt
(28) distance between the pin joint of left stock (29) and another end points of left stock (29)；Right stock (25), left stock
(29) cavity plate pull bar (23) of the other end respectively with combined die (4) two ends is hinged；
The workpiece system (6) is by the restraint layer (17), absorbed layer (18), the first sheet metal (19) that are arranged in order from top to bottom
And second sheet metal (20) composition；Workpiece system (6) is placed on combined die (4), the pressure by being fixed on movable plate
Side device (7) is fixed；
The control system is by laser controller (12), computer (13), hydraulic control system (14), controllor for step-by-step motor
(15), three-dimensional mobile platform controller (16) is constituted；The laser controller (12), hydraulic control system (14), stepper motor
Controller (15) and three-dimensional mobile platform controller (16) are connected with computer (13)；The laser controller (12) and arteries and veins
Rush laser (11) to be connected, the working condition for controlling pulse laser (11)；Three-dimensional mobile platform controller (16) with
Three-dimensional mobile platform (2) is connected, for controlling three-dimensional mobile platform (2) to make planar movement；The controllor for step-by-step motor (15)
It is connected with stepper motor (34), is rotated forward or backwards for controlling stepper motor (34) to make intermittence；The hydraulic control system
System (14) is connected with single pole double acting hydraulic cylinder (31), for controlling the flexible of single pole double acting hydraulic cylinder (31).
2. straight line multistation laser-impact according to claim 1 connects the device of sheet metal, it is characterised in that：It is described
Combined die (4) size be 5mm × 5mm × 5mm, the section of the fovea superior die cavity is circular or rectangle, the horizontal stroke of recessed die cavity
Sectional dimension is 3mm × 0.3mm, and matrix cavity is combined composition integral concave mould chamber up and down.
3. straight line multistation laser-impact according to claim 1 connects the device of sheet metal, it is characterised in that：Cavity plate
The channel section of pedestal (21) upper surface is swallow-tail form, and the guide rail section of cavity plate end cap (22) bottom is swallow-tail form.
4. straight line multistation laser-impact according to claim 1 connects the device of sheet metal, it is characterised in that：It is described
Right stock (25), one end of left stock (29) on sliding block (30), or are articulated with and the sliding block (30) by pin-hinges
On the bearing pin of one.
5. the straight line multistation laser of the device of straight line multistation laser-impact connection sheet metal according to claim 1
The method of impact connection sheet metal, specifically includes following steps：
S1. the objective table (32) in straight line multistation device (3) is fixedly mounted in three-dimensional mobile platform (2), cylindrical guide
(33) both sides of objective table (32) are arranged on, stepper motor (34) is connected by shaft coupling (35) with rotary shaft, and rotary shaft is passed through
Shaft supporting frame (36) is connected with rotating disk (37), and stepper motor (34) is arranged on objective table with shaft supporting frame (36) by trip bolt
On, multistation index plate (38) is fixedly mounted on the lower surface centre of movable plate (39), the circular arc of multistation index plate (38)
Groove is engaged with the semi-disc on rotating disk (37), and movable plate (39) is fixedly mounted on the bearing block of cylindrical guide (33)；
S2. it is sliding after the sliding block (30) in automatic switch die device (5) is connected with the piston rod of single pole double acting hydraulic cylinder (31)
Block (30) is fitted into the chute on substrate (24), and single pole double acting hydraulic cylinder (31) is placed at the rectangular opening on substrate (24),
Substrate (24) and single pole double acting hydraulic cylinder (31) are fixed in straight line multistation device (3) by screwed hole, pin (27)
In the pin hole for being fitted into substrate (24), after short connecting rod is connected with long connecting rod by hinge, by right quarter butt (26) and left quarter butt (28)
One end be connected jointly with pin (27), right stock (25) and one end of left stock (29) are hinged with sliding block (30) jointly；By group
Close cavity plate (4) to be fixedly mounted in straight line multistation device (3), the upper end of two long connecting rods leads in automatic switch die device (5)
Hinge is crossed with the cavity plate pull bar (23) in combined die (4) to be connected；
S3. workpiece system (6) is placed on combined die (4), and flange fixing installation (7) applies pressure-pad-force to workpiece system (6)；By laser
Controller (12), hydraulic control system (14), controllor for step-by-step motor (15) and three-dimensional mobile platform controller (16) with meter
Calculation machine (13) is connected；Controllor for step-by-step motor (15), controllor for step-by-step motor (15) control step are controlled by computer (13)
Stepper motor (34) is rotated, and drives the rotating disk (37) to be rotated in arc groove, when the long pin is transferred to the square beside arc groove
After shape groove, the long pin rotated with the rotating disk (37) drives movable plate (38) to move in the horizontal direction, by deformation connection system
The position of system is adjusted to the first station；Three-dimensional mobile platform is controlled by three-dimensional mobile platform controller (16) using computer (13)
(2) movement so that first aperture of cavity plate end cap (22) upper surface is centrally located on laser optical path；
S4. speculum (10) and adjustable focus lens (9), the Laser Focusing that pulse laser (11) is sent to workpiece system are adjusted
Unite (6) on, the transparent restraint layer of laser light (17) reach absorbed layer (18) surface, absorbed layer (18) surface portion be vaporized and
HTHP plasma is produced after ionization, plasma rapidly outside splash expansion, its reaction force can form thump
Ripple, under the collective effect of strong shock wave and combined die (4), hypervelocity plastic deformation occurs for double layer of metal thin plate, so as to complete
Connection at first tie point；Complete after the connection at first tie point, the rotating disk (37) in straight line multistation device (3)
Intermittence is carried out under the driving of stepper motor (34) to rotate forward, and the position for deforming connection system is adjusted to next station, arteries and veins
Rush laser (11) and send laser and complete connection at next tie point；
S5. complete after the connection at N number of tie point, flange fixing installation (7) sheds pressure-pad-force；Computer (13) control hydraulic control system
Unite (14), the piston rod of hydraulic control system (14) control single pole double acting hydraulic cylinder (31) heads on sliding block (30) motion upwards,
I.e. control automatic switch die device (5) automatically opens up the cavity plate end cap (22) of combined die (4)；Take out the workpiece system machined
Unite (6)；Computer (13) sends instruction, hydraulic control system (14) control single pole double-action hydraulic to hydraulic control system (14)
Cylinder (31) is moved downwardly together with sliding block (30), and control automatic switch die device (5) closes the cavity plate end of combined die (4) automatically
Cover (22)；
S6. new workpiece system (6) is put on combined die (4), flange fixing installation (7) applies to new workpiece system (6) presses
Bian Li；Pulse laser (11) sends the laser-impact connection sheet metal process on laser completion N stations；Straight line multistation
Rotating disk (37) in device (3) carries out intermittence under the reverse drive of stepper motor (34) and rotated backward, and respectively connects deformation
The position of welding system is adjusted to N-1 stations, until the first station, pulse laser (11) sends laser and is sequentially completed N-1 extremely
The connection of first tie point；Flange fixing installation (7) sheds pressure-pad-force；It is recessed that control automatic switch die device (5) automatically opens up combination
Mould (4)；Take out the workpiece system (6) machined；Automatic switch die device (5) is controlled to close combined die (4) automatically；Thus
The sheet metal cycle is connected into next laser-impact.
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| CN107497917A (en) * | 2017-07-31 | 2017-12-22 | 江苏大学 | A kind of automation equipment and its method of high strain-rate laser impact forming micro-volume part |
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| CN107442637A (en) * | 2017-07-31 | 2017-12-08 | 江苏大学 | A kind of automation equipment and its method of multistation Laser shock loading shaping micro-volume part |
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| CN109604414B (en) * | 2018-12-14 | 2019-12-31 | 安徽工业大学 | Method and device for forming stepped cylindrical part through laser shock |
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| US6288358B1 (en) * | 1998-12-15 | 2001-09-11 | Lsp Technologies, Inc. | Mobile laser peening system |
| JP2000246472A (en) * | 1999-02-26 | 2000-09-12 | Dainippon Screen Mfg Co Ltd | Device and method for connecting strip-like metal sheet |
| CN101269440B (en) * | 2008-04-03 | 2011-09-14 | 江苏大学 | Laser impact tiny bulk forming method and apparatus for tiny apparatus |
| CN102029317B (en) * | 2010-10-12 | 2012-08-29 | 江苏大学 | Laser direct-compounding micro-plastic forming device and method |
| CN103273194B (en) * | 2013-05-28 | 2015-03-04 | 江苏大学 | Micro-bending-coining automation device and method of sheet metal under indirect impact of laser |
| JP2015202513A (en) * | 2014-04-15 | 2015-11-16 | シロキ工業株式会社 | Laser welding method for metal plate laminate, and method of manufacturing vehicular door frame by using the same |
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