CN101890576B - Stainless steel or nickel sheet laser tailor-welding alignment clamping device and method - Google Patents
Stainless steel or nickel sheet laser tailor-welding alignment clamping device and method Download PDFInfo
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- CN101890576B CN101890576B CN2010102565643A CN201010256564A CN101890576B CN 101890576 B CN101890576 B CN 101890576B CN 2010102565643 A CN2010102565643 A CN 2010102565643A CN 201010256564 A CN201010256564 A CN 201010256564A CN 101890576 B CN101890576 B CN 101890576B
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Abstract
The invention discloses a stainless steel or nickel sheet laser tailor-welding alignment clamping device and a method. The alignment clamping device comprises an XYZ three-dimensional translation RZ one-dimensional rotation motion mechanism, a video monitoring alignment regulating mechanism and a magnet pneumatic clamping mechanism, wherein the stainless steel or nickel sheet laser tailor-welding alignment clamping device can align and position sheets through the XYZ three-dimensional translation RZ one-dimensional rotation motion mechanism and the video monitoring alignment regulating mechanism, and then clamps and fixes the stainless steel or nickel sheets by the magnet pneumatic clamping mechanism to realize the laser tailor-welding of the stainless steel or nickel sheets. The invention can solve the problem of difficult welding of the stainless steel or nickel sheets smaller than 0.3mm in thickness in laser butt welding because the sheets are easy to deform owing to easy deformation property per se and thermal stress, and guarantees the quality of tailor-welded seams.
Description
Technical field
The present invention relates to a kind of stainless steel or nickel sheet laser tailor-welding contraposition clamping device and method, belong to laser retrofit technical applications.
Background technology
The application of laser weld is more and more wider; Because thickness is very thin less than stainless steel or the nickel plate of 0.3mm, easy deformation is crooked, and the contact-making surface of two thin plates welding is again little; Very easily distortion after when laser weld, being heated; And deflection is big, has brought sizable difficulty to welding, the very key so the positioning and clamping of the aligning of thin plate when welding stitching position and thin plate seems.And the contraposition of the weld seam of thin plate welding at present and location mainly still rely on operating personnel's experience, differentiate with eyes and aim at, and move by hand and adjust the welding position, with pressing plate and screw thin plate are fixed again.Its shortcoming is: 1, random big, the welding position difficulty is looked for, and positioning accuracy is poor, influences welding quality; 2, the relative position between the supporting plate of clamping thin plate and pressing plate and the thin plate face of weld is uncertain, causes the weld seam when producing in batches inconsistent; 3, the supporting plate of clamping thin plate and platen edge are big apart from plate sheet welding seam distance, because the thickness of plate as thin as a wafer, the temperature distortion of plate sheet welding position can't guarantee the weld all high-quality and the uniformity of seam.
Application number is that 200410015618.1 patent has disclosed a kind of Workpiece clamping device that offers laser thin plate cutting bonding machine, adopts a plurality of electromagnet and a plurality of pneumatic pinch mechanism, the device of the automatic clamping and positioning of workpiece under system controlled by computer.Though realized automation, workpiece positioning control and image processing process are complicated, and positioning accuracy is taken in the influence of picture signal.Clamp in addition electromagnet and pneumatic clamp mechanism distribute big at interval, during welding thin plate be heated yielding, can not guarantee thin plate especially thickness less than the thin plate whole piece welded edge of 0.3m all by even clamping and welding.
Application number be 200820062771.3 patent described be anchor clamps with welding gun welding thin plate; Although lower platen is evenly pushed down two thin plates in the employing; But two thin plates edge to be welded is at a distance of the 1.5-2 millimeter; Weld seam is wide, and not adding scolder can't be welded together with it, can not satisfy the welding requirement of thin plate.
Summary of the invention
The objective of the invention is the aligning of stitching position when overcoming existing thin plate welding and the technological shortcoming of positioning and clamping of thin plate, a kind of stainless steel or nickel sheet laser tailor-welding contraposition clamping device and method are provided.
Technical scheme of the present invention is: a kind of stainless steel or nickel thin plate carry out the contraposition clamping device of laser assembly solder; Characteristics are; It comprises laser head, XYZ D translation RZ one dimension rotational motion mechanism, video monitoring contraposition guiding mechanism and the pneumatic clamping mechanism of magnet; Said XYZ D translation RZ one dimension rotational motion mechanism comprises X axle horizontal translation stage, Y axle horizontal translation stage, Z axle vertical translation platform and the RZ turntable that rotates around the Z axle; The X axle direction of motion is the stitching direction of first thin plate and second thin plate, Y axle and X axle quadrature, and said laser head is connected with Z vertical translation platform; Said video monitoring contraposition guiding mechanism comprises CCD camera system, crosshair, video-frequency monitor, substrate, alignment pin and bit block; Alignment pin is used to locate bit block; Bit block is located the first vacuum cup supporting plate and the second vacuum cup supporting plate, the first magnetic pressing plate and the second magnetic pressing plate; First thin plate of bit block positioning and clamping and second thin plate, crosshair is connected with the CCD camera system, with bit block to plane and first thin plate and second thin plate face of weld on an imaging surface; Said video-frequency monitor is connected with the CCD camera system, and the CCD camera system is connected with laser head; The flexible member that the pneumatic clamping mechanism of said magnet comprises the first vacuum cup supporting plate and the second vacuum cup supporting plate, the first magnetic pressing plate and the second magnetic pressing plate, crystal glass pressing plate, first air cylinder group and second air cylinder group, side direction pressure strip, is made up of extension spring and stage clip; The first vacuum cup supporting plate that processed by steel material and be equipped with a plurality of pores on the surface is inhaled with the first magnetic pressing plate and the second magnetic pressing plate with the second vacuum cup supporting plate mutually; By vacuum cup supporting plate pull of vacuum and magnetic pressing plate magnetic force need welding thin plate clamping realization is just compressed; Make the seam compacting of first thin plate and second thin plate through flexible member; Compress first thin plate and second thin plate with first air cylinder group and first air cylinder group again, realize the positioning and clamping of welding thin plate.Be particularly suitable for aligning, location and the clamping of thickness less than the stainless steel of 0.3mm or nickel thin plate welding position when the laser assembly solder.
The structure of described XYZ D translation RZ one dimension rotational motion mechanism is that X axle translation stage is fixed on the pedestal of device; The one dimension rotation platform is fixed on the X axle translation stage; Y axle translation stage is fixed on the portal frame crossbeam of pedestal, and Z axle translation stage is fixed on the Y axle translation stage.
Said bit block two sides are concave shape; While positioning vacuum chuck supporting plate, thin plate and magnetic pressing plate; The two ends side depression of one side and the concave recess 0.5-1mm of concave shape; Be the position while welding of first thin plate and second thin plate splicing, the height at bit block two ends is consistent with first thin plate and the second plate sheet welding face.
Utilize above-mentioned stainless steel or nickel thin plate to carry out the contraposition clamping device of laser assembly solder, to stainless steel and nickel thin plate carry out laser assembly solder to method for position, comprise the steps:
1) two alignment pins are fixed on the substrate, the right side of bit block is screwed on substrate near two alignment pins then;
2) face of weld to plane and two thin plates with crosshair and bit block is placed on the imaging surface, moves and can focus up and down through the Z translation stage, through CCD; On video monitor, can observe the relative position in bit block two ends side and crosshair crosspoint; Rotate the RZ rotation platform, move Y axle translation stage, the relative position of adjustment bit block two ends depression side and crosshair; The X translation stage moves around; Finely tune RZ rotation platform and Y translation stage repeatedly, make depressions side in bit block two ends all the time on the crosspoint of crosshair, locking RZ rotation platform and Y translation stage; Accomplish the position alignment of thin plate splicing seam, guarantee that the laser solder joint is all the time on the splicing seams of two thin plates.
Utilize above-mentioned stainless steel or nickel thin plate to carry out the contraposition clamping device of laser assembly solder, stainless steel and nickel thin plate are carried out one of positioning and clamping method of laser assembly solder, comprise the steps:
1) side that bit block has two concave ends is close in the side of the first vacuum cup supporting plate, is fixed on base then
On the plate; First thin plate places to be close to a side of bit block and to be held by vacuum on the first vacuum cup supporting plate, the first magnetic pressing plate is placed a side of also being close to bit block on first thin plate, and through and the first vacuum cup supporting plate of steel between magnetic force grasp first thin plate; Because of the bit block two sides are concave shape; The outstanding first vacuum cup supporting plate of first thin plate and the first magnetic pressing plate side 0.5-1mm with the depression consistent size of a side of bit block, accomplish the first of first thin plate and compress;
2) start first air cylinder group, withstand the first magnetic pressing plate from top to bottom, first thin plate is compressed, accomplish first
The positioning and clamping of thin plate;
3) place the opposite side of locating piece to be fixed on the substrate through extension spring the second vacuum cup supporting plate, a side is tight
Paste the another side of bit block; The opposite side of the second vacuum cup supporting plate receives the stage clip side action, makes it near bit block, and second thin plate places to be close to the another side of bit block and to be held by vacuum on the second vacuum cup supporting plate; The second magnetic pressing plate is placed the another side of also being close to bit block on second thin plate; And through and the second vacuum cup supporting plate of steel between magnetic force grasp second thin plate, because of the bit block two sides are concave shape, the outstanding second vacuum cup supporting plate of second thin plate and the second magnetic pressing plate side 0.5-1mm; With the depression consistent size of another side of bit block, accomplish the first of second thin plate and compress;
4) take out the bit block that is fixed on the substrate, the second vacuum cup supporting plate receives the side action of stage clip, makes second
Thin plate is close to first thin plate, and the side action power of stage clip is less than the second vacuum cup supporting plate and the second magnetic pressing plate to the chucking power of second thin plate, remains unchanged with the relative position of guaranteeing second thin plate and the second vacuum cup supporting plate and the second magnetic pressing plate;
5) start second air cylinder group, withstand the second magnetic pressing plate from top to bottom, second thin plate is compressed, accomplish second
The positioning and clamping of thin plate;
6) open laser and X translation stage, can realize the laser thin plate welding of directions X.
Utilize above-mentioned stainless steel or nickel thin plate to carry out the contraposition clamping device of laser assembly solder, stainless steel and nickel thin plate are carried out laser assembly solder the positioning and clamping method two, comprise the steps:
1) side that bit block has two concave ends is close in the side of the first vacuum cup supporting plate, is fixed on base
then
On the plate, first thin plate places to be close to a side of bit block and to be held by vacuum on the first vacuum cup supporting plate, the first magnetic pressing plate is placed on first thin plate; Push down the outside of first thin plate; And through and the first vacuum cup supporting plate of steel between magnetic force grasp first thin plate, because of the bit block two sides are concave shape, the side 0.5-1mm of the outstanding first vacuum cup supporting plate of first thin plate; With the depression consistent size of a side of bit block, accomplish the first of first thin plate and compress;
2) the second vacuum cup supporting plate places the opposite side of locating piece, is fixed on the substrate through extension spring, and a side is close to
The another side of bit block, the opposite side of the second vacuum cup supporting plate receives the stage clip side action, makes it near bit block; Second thin plate places to be close to the another side of bit block and to be held by vacuum on the second vacuum cup supporting plate; The second magnetic pressing plate is placed on second thin plate, pushes down the outside of second thin plate, and through and the second vacuum cup supporting plate of steel between magnetic force grasp second thin plate; The another side of also being close to bit block; And through and the second vacuum cup supporting plate of steel between magnetic force grasp second thin plate, because of the bit block two sides are concave shape, the side 0.5-1mm of the outstanding second vacuum cup supporting plate of second thin plate; With the depression consistent size of another side of bit block, accomplish the first of second thin plate and compress;
3) take out the bit block that is fixed on the substrate, the second vacuum cup supporting plate receives the side action of stage clip, makes second
Thin plate is close to first thin plate, and the side action power of stage clip is less than the second vacuum cup supporting plate and the second magnetic pressing plate chucking power to second thin plate, with true second protect thin plate and the second vacuum cup supporting plate and the second magnetic pressing plate relative position remain unchanged;
4) the crystal glass pressing plate of a width dimensions less than the first magnetic pressing plate and the second magnetic daylight opening placed
On first thin plate and second thin plate, start first air cylinder group and second air cylinder group, withstand crystal glass pressing plate both sides from top to bottom, first thin plate and second thin plate are compressed simultaneously, accomplish the positioning and clamping of first thin plate and second thin plate;
5) open laser and X translation stage, can realize the laser thin plate welding of directions X.
The invention has the beneficial effects as follows: a kind of stainless steel or nickel sheet laser tailor-welding contraposition clamping device and method are provided; Especially to thickness during less than 0.3mm stainless steel or nickel sheet laser tailor-welding the positioning and clamping of the aligning of stitching position and thin plate more effective; Solve thin plate itself yielding during with welding the thermal stress effect cause the difficult problem of thin plate welding of thin plate distortion, apparatus structure is simple, the positioning accuracy height; Clamp pressure is evenly reliable, can effectively improve the quality and the yield rate of thin plate welding.
Description of drawings
Fig. 1 sheet laser tailor-welding contraposition clamping device frame diagram;
Fig. 2 sheet laser tailor-welding contraposition clamping device overall construction drawing sketch map;
Fig. 3 bit block structural representation;
Fig. 4 is contained in the pneumatic clamping mechanism structural representation of magnet on the substrate;
Fig. 5 adopts the positioning and clamping structural representation of crystal glass pressing plate.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.
A kind of stainless steel or nickel thin plate carry out the contraposition clamping device of laser assembly solder; By Fig. 1, Fig. 2, Fig. 4, shown in Figure 5; It comprises laser head 8, XYZ D translation RZ one dimension rotational motion mechanism 1, video monitoring contraposition guiding mechanism 2 and the pneumatic clamping mechanism 3 of magnet; Said XYZ D translation RZ one dimension rotational motion mechanism 1 comprises X axle horizontal translation stage 4, Y axle horizontal translation stage 5, Z axle vertical translation platform 6 and the RZ turntable 7 that rotates around the Z axle, and the X axle direction of motion is the stitching direction of first thin plate 17 and second thin plate 18, Y axle and X axle quadrature; Said laser head 8 is connected with Z vertical translation platform 6; When Z translation stage 6 moved up and down, laser head 8 moved up and down with CCD camera system 9 together, is used to regulate the position of CCD camera system 9 imaging surfaces and pad.Said video monitoring contraposition guiding mechanism 2 comprises CCD camera system 9, crosshair 10, video-frequency monitor 11, substrate 12, alignment pin 13 and bit block 14; Alignment pin 13 is used to locate bit block 14; The bit block 14 location first vacuum cup supporting plates 15 and the second vacuum cup supporting plate 16, the first magnetic pressing plate 19 and the second magnetic pressing plate 20; First thin plate 17 of bit block 14 positioning and clamping and second thin plate 18; Crosshair 10 is connected with CCD camera system 9; With bit block 14 to the face of weld of plane and first thin plate 17, second thin plate 18 on an imaging surface, said video-frequency monitor 11 is connected with CCD camera system 9, CCD camera system 9 is connected with laser head 8.
The pneumatic clamping mechanism 3 of said magnet is fixed on the substrate 12 of video contraposition guiding mechanism 2, and substrate 12 is fixed on the RZ one dimension rotation platform 7.The flexible member that the pneumatic clamping mechanism 3 of said magnet comprises the first vacuum cup supporting plate 15 and the second vacuum cup supporting plate 16, the first magnetic pressing plate 19 and the second magnetic pressing plate 20, crystal glass pressing plate 24, first air cylinder group 25 and second air cylinder group 26, side direction pressure strip 21, is made up of extension spring 22 and stage clip 23; The first vacuum cup supporting plate 15 that processed by steel material and be equipped with a plurality of pores on the surface is inhaled with the first magnetic pressing plate 19 and the second magnetic pressing plate 20 with the second vacuum cup supporting plate 16 mutually; By vacuum cup supporting plate pull of vacuum and magnetic pressing plate magnetic force need welding thin plate clamping realization is just compressed; Make the seam compacting of first thin plate 17 and second thin plate 18 through flexible member; Compress first thin plate 17 and second thin plate 18 for 26 groups with first air cylinder group 25 and second cylinder again, realize the positioning and clamping of welding thin plate.
By shown in Figure 2; The structure of XYZ D translation RZ one dimension rotational motion mechanism is that X axle translation stage 4 is fixed on the pedestal 27 of device; The RZ turntable 7 that rotates around the Z axle is fixed on the X axle translation stage 4; Y axle translation stage 5 is fixed on the portal frame crossbeam 28 of pedestal 27, and Z axle translation stage 6 is fixed on the Y axle translation stage 5.
By shown in Figure 3; Bit block 14 two sides are concave shape, while positioning vacuum chuck supporting plate 15,16, thin plate 17,18 and magnetic pressing plate 19,20, and the relative position at three edge remains between the 0.5-1mm parallel; Do not need the spacing and the depth of parallelism; Guarantee the uniformity of pressure and the quality of welding, realize the integrated of contraposition and location, the two ends side depression of a side and the concave recess 0.5-1mm of concave shape; Be the position while welding of first thin plate 17 and 18 splicings of second thin plate, the height at bit block 14 two ends is consistent with first thin plate 17 and second thin plate, 18 solders side.
Utilize above-mentioned stainless steel or nickel thin plate to carry out the contraposition clamping device of laser assembly solder, to stainless steel and nickel thin plate carry out laser assembly solder to method for position, comprise the steps:
1) two alignment pins 13 are fixed on the substrate 12, the right side of bit block 14 is screwed on substrate 12 near two alignment pins 13 then.
2) the face of weld to plane and thin plate 17 and 18 of crosshair 10 with bit block 14 is placed on the imaging surface,
Move and to focus up and down through Z translation stage 6,, on video monitor 11, can observe the relative position in bit block 14 two ends sides and crosshair 10 crosspoints through CCD9.Rotate RZ rotation platform 7, move Y axle translation stage 5, can adjust the relative position of bit block 14 two ends depression side and crosshair 10.The X translation stage 4 that moves around is finely tuned RZ rotation platform 7 and Y translation stage 5 repeatedly, makes bit block 14 two ends depression side all the time on the crosspoint of crosshair 10.Locking RZ rotation platform 7 and Y translation stage 5 are accomplished the position alignment that thin plate splicing stitches, and guarantee that the laser solder joint is all the time on the splicing seams of two thin plates.
Utilize above-mentioned stainless steel or nickel thin plate to carry out the contraposition clamping device of laser assembly solder, rust steel and nickel thin plate carried out one of positioning and clamping method of laser assembly solder, adopt two kinds of methods:
1) one of positioning and clamping method is as shown in Figure 4, comprises the steps:
A) side that bit block 14 has two concave ends is close in the side of vacuum cup supporting plate 15, is fixed on then
On the substrate 12, thin plate 17 places a side of being close to bit block 14 on the vacuum cup supporting plate 15 and is held by vacuum.Magnetic pressing plate 19 is placed a side of also being close to bit block 14 on the thin plate 17, and through and the magnetic force of 15 of steel vacuum cup supporting plates grasp thin plate 17.Because of bit block 14 two sides are concave shape, outstanding vacuum cup supporting plates 15 of thin plate 17 and magnetic pressing plate 19 side 0.5-1mm with the depression consistent size of a side of bit block 14, are accomplished the first of thin plate 17 and are compressed.
B) start air cylinder group 25, withstand magnetic pressing plate 19 from top to bottom, thin plate 17 is compressed, accomplish thin plate 17
Positioning and clamping.
C) vacuum cup supporting plate 16 places the opposite side of locating piece 14, be fixed on the substrate 14 through extension spring 22,
One side is close to the another side of bit block 14, and the opposite side of vacuum cup supporting plate 16 receives stage clip 23 side action, makes it near bit block 14.Thin plate 18 places to be close to the another side of bit block 14 and to be held by vacuum on the vacuum cup supporting plate 16.Magnetic pressing plate 20 is placed the another side of also being close to bit block 14 on the thin plate 18, and through and the magnetic force of 16 of steel vacuum cup supporting plates grasp thin plate 18.Because of bit block 14 two sides are concave shape, thin plate 18 outstanding vacuum cup supporting plates 16 and magnetic pressing plate 20 side 0.5-1mm with the depression consistent size of bit block 14 another sides, are accomplished the first of thin plate 18 and are compressed.
D) take out the bit block 14 that is fixed on the substrate 12, vacuum cup supporting plate 16 receives the side action of stage clip 23, makes thin slice 18 be close to thin slice 17.The side action power of stage clip 23 is less than the chucking power of vacuum cup supporting plate 16 and 20 pairs of thin plates 18 of magnetic pressing plate, remains unchanged to guarantee the thin plate 18 and the relative position of vacuum cup supporting plate 16 and magnetic pressing plate 20.
E) start air cylinder group 26, withstand magnetic pressing plate 20 from top to bottom, thin plate 18 is compressed, accomplish thin plate 18
Positioning and clamping.
F) open laser and X translation stage 4, can realize the laser thin plate welding of directions X.
2) two of the positioning and clamping method, as shown in Figure 5, comprise the steps:
A) side that bit block 14 has two concave ends is close in the side of vacuum cup supporting plate 15, is fixed on base then
On the plate 12, thin plate 17 places a side of being close to bit block 14 on the vacuum cup supporting plate 15 and is held by vacuum.Magnetic pressing plate 19 is placed on the thin plate 17, pushes down the outside of thin plate 17, and through and the magnetic force of 15 of steel vacuum cup supporting plates grasp thin plate 17.Because of bit block 14 two sides are concave shape, the side 0.5-1mm of the outstanding vacuum cup supporting plates 15 of thin plate 17 with the depression consistent size of a side of bit block 14, accomplishes the first of thin plate 17 and compresses.
B) vacuum cup supporting plate 16 places the opposite side of locating piece 14, is fixed on the substrate 12 one through extension spring 22
Side is close to the another side of bit block 14, and the opposite side of vacuum cup supporting plate 16 receives stage clip 23 side action, makes it near bit block 1.Thin plate 18 places to be close to the another side of bit block 14 and to be held by vacuum on the vacuum cup supporting plate 16.Magnetic pressing plate 20 is placed on the thin plate 18, pushes down the outside of thin plate 18, and through and the magnetic force of 16 of steel vacuum cup supporting plates grasp thin plate 18.The another side of also being close to bit block 14, and through and the magnetic force of 16 of steel vacuum cup supporting plates grasp thin plate 18.Because of bit block 14 two sides are concave shape, the side 0.5-1mm of thin plate 18 outstanding vacuum cup supporting plates 16 with the depression consistent size of bit block 14 another sides, accomplishes the first of thin plate 18 and compresses.
C) take out the bit block 14 that is fixed on the substrate 12, vacuum cup supporting plate 16 receives the side action of stage clip 23,
Make thin slice 18 be close to thin slice 17.The side action power of stage clip 23 is less than the chucking power of vacuum cup supporting plate 16 and 20 pairs of thin plates 18 of magnetic pressing plate, remains unchanged to guarantee the thin plate 18 and the relative position of vacuum cup supporting plate 16 and magnetic pressing plate 20.
D) the crystal glass plate 24 of a width dimensions less than two magnetic pressing plates 19 and 20 spacings placed on two thin plates 17 and 18; Start air cylinder group 25 and 26; Withstand crystal glass plate 24 both sides from top to bottom, two thin plates 17 and 18 are compressed simultaneously, accomplish the positioning and clamping of two thin plates 17 and 18.
E) open laser and X translation stage 4, realize the laser thin plate welding of directions X.
Two of positioning and clamping method adopts crystal glass plates and air cylinder group to compress two thin plates, makes two thin plate splicing edges by pressing fully, temperature distortion when avoiding thin plate splicing and influence weldquality.
The contraposition clamping method of stainless steel or nickel thin plate welding when batch machining, accomplish contraposition for the first time after, locking RZ rotation platform with the vertical Y translation stage of welding direction, later on each clamping thin plate no longer needs contraposition, only needs the location just can.
Claims (6)
1. stainless steel or nickel sheet laser tailor-welding contraposition clamping device; It is characterized in that; It comprises laser head, XYZ D translation RZ one dimension rotational motion mechanism, video monitoring contraposition guiding mechanism and the pneumatic clamping mechanism of magnet; Said XYZ D translation RZ one dimension rotational motion mechanism comprises X axle horizontal translation stage, Y axle horizontal translation stage, Z axle vertical translation platform and the RZ turntable that rotates around the Z axle; The X axle direction of motion is the stitching direction of first thin plate and second thin plate, Y axle and X axle quadrature, and said laser head is connected with Z vertical translation platform; Said video monitoring contraposition guiding mechanism comprises CCD camera system, crosshair, video-frequency monitor, substrate, alignment pin and bit block; Alignment pin is used to locate bit block; Bit block is located the first vacuum cup supporting plate and the second vacuum cup supporting plate, the first magnetic pressing plate and the second magnetic pressing plate; First thin plate of bit block positioning and clamping and second thin plate, crosshair is connected with the CCD camera system, with bit block to plane and first thin plate and second thin plate face of weld on an imaging surface; Said video-frequency monitor is connected with the CCD camera system, and the CCD camera system is connected with laser head; The flexible member that the pneumatic clamping mechanism of said magnet comprises the first vacuum cup supporting plate and the second vacuum cup supporting plate, the first magnetic pressing plate and the second magnetic pressing plate, crystal glass pressing plate, first air cylinder group and second air cylinder group, side direction pressure strip, is made up of extension spring and stage clip; The first vacuum cup supporting plate that processed by steel material and be equipped with a plurality of pores on the surface is inhaled with the first magnetic pressing plate and the second magnetic pressing plate with the second vacuum cup supporting plate mutually; By vacuum cup supporting plate pull of vacuum and magnetic pressing plate magnetic force need welding thin plate clamping realization is just compressed; Make the seam compacting of first thin plate and second thin plate through flexible member; Compress first thin plate and second thin plate with first air cylinder group and second air cylinder group again, realize the positioning and clamping of welding thin plate.
2. stainless steel according to claim 1 or nickel sheet laser tailor-welding contraposition clamping device; It is characterized in that; The structure of described XYZ D translation RZ one dimension rotational motion mechanism is that X axle translation stage is fixed on the pedestal of device; The one dimension rotation platform is fixed on the X axle translation stage, and Y axle translation stage is fixed on the portal frame crossbeam of pedestal, and Z axle translation stage is fixed on the Y axle translation stage.
3. stainless steel according to claim 1 or nickel sheet laser tailor-welding contraposition clamping device; It is characterized in that; Said bit block left and right sides face is concave shape, while positioning vacuum chuck supporting plate, thin plate and magnetic pressing plate, the concave recess 0.5-1mm of said concave shape; Be the position while welding of first thin plate and second thin plate splicing, the height at bit block two ends is consistent with first thin plate and the second plate sheet welding face.
4. contraposition clamping device that utilizes said stainless steel of claim 1 or nickel thin plate to carry out laser assembly solder, to stainless steel and nickel thin plate carry out laser assembly solder to method for position, comprise the steps:
1) two alignment pins are fixed on the substrate, the right side of bit block is screwed on substrate near two alignment pins then;
2) face of weld to plane and two thin plates with crosshair and bit block is placed on the imaging surface, moves and can focus up and down through the Z translation stage, through CCD; On video monitor, can observe the relative position in bit block two ends side and crosshair crosspoint; Rotate the RZ rotation platform, move Y axle translation stage, the relative position of adjustment bit block two ends depression side and crosshair; The X translation stage moves around; Finely tune RZ rotation platform and Y translation stage repeatedly, make depressions side in bit block two ends all the time on the crosspoint of crosshair, locking RZ rotation platform and Y translation stage; Accomplish the position alignment of thin plate splicing seam, guarantee that the laser solder joint is all the time on the splicing seams of two thin plates.
5. a contraposition clamping device that utilizes said stainless steel of claim 1 or nickel thin plate to carry out laser assembly solder carries out one of positioning and clamping method of laser assembly solder to stainless steel and nickel thin plate, comprises the steps:
1) side that bit block has two concave ends is close in the side of the first vacuum cup supporting plate; Be fixed on the substrate then; First thin plate places to be close to a side of bit block and to be held by vacuum on the first vacuum cup supporting plate, the first magnetic pressing plate is placed a side of also being close to bit block on first thin plate, and through and the first vacuum cup supporting plate of steel between magnetic force grasp first thin plate; Because of bit block left and right sides face is concave shape; The outstanding first vacuum cup supporting plate of first thin plate and the first magnetic pressing plate side 0.5-1mm with the depression consistent size of a side of bit block, accomplish the first of first thin plate and compress;
2) start first air cylinder group, withstand the first magnetic pressing plate from top to bottom, first thin plate is compressed, accomplish the positioning and clamping of first thin plate;
3) the second vacuum cup supporting plate is placed the opposite side of locating piece; Be fixed on the substrate through extension spring, a side is close to the another side of bit block, and the opposite side of the second vacuum cup supporting plate receives the stage clip side action; Make it near bit block; Second thin plate places to be close to the another side of bit block and to be held by vacuum on the second vacuum cup supporting plate, the second magnetic pressing plate is placed the another side of also being close to bit block on second thin plate, and through and the second vacuum cup supporting plate of steel between magnetic force grasp second thin plate; Because of bit block left and right sides face is concave shape; The outstanding second vacuum cup supporting plate of second thin plate and the second magnetic pressing plate side 0.5-1mm with the depression consistent size of another side of bit block, accomplish the first of second thin plate and compress;
4) take out the bit block that is fixed on the substrate; The second vacuum cup supporting plate receives the side action of stage clip; Make second thin plate be close to first thin plate; The side action power of stage clip is less than the second vacuum cup supporting plate and the second magnetic pressing plate to the chucking power of second thin plate, remains unchanged with the relative position of guaranteeing second thin plate and the second vacuum cup supporting plate and the second magnetic pressing plate;
5) start second air cylinder group, withstand the second magnetic pressing plate from top to bottom, second thin plate is compressed, accomplish second
The positioning and clamping of thin plate.
6. contraposition clamping device that utilizes said stainless steel of claim 1 or nickel thin plate to carry out laser assembly solder, stainless steel and nickel thin plate are carried out laser assembly solder the positioning and clamping method two, comprise the steps:
1) side that bit block has two concave ends is close in the side of the first vacuum cup supporting plate; Be fixed on then on the substrate, first thin plate places to be close to a side of bit block and to be held by vacuum on the first vacuum cup supporting plate, the first magnetic pressing plate is placed on first thin plate; Push down the outside of first thin plate; And through and the first vacuum cup supporting plate of steel between magnetic force grasp first thin plate, because of bit block left and right sides face is concave shape, the side 0.5-1mm of the outstanding first vacuum cup supporting plate of first thin plate; With the depression consistent size of a side of bit block, accomplish the first of first thin plate and compress;
2) the second vacuum cup supporting plate places the opposite side of locating piece, is fixed on the substrate through extension spring, and a side is close to the another side of bit block; The opposite side of the second vacuum cup supporting plate receives the stage clip side action; Make it near bit block, second thin plate places to be close to the another side of bit block and to be held by vacuum on the second vacuum cup supporting plate, the second magnetic pressing plate is placed on second thin plate; Push down the outside of second thin plate; And through and the second vacuum cup supporting plate of steel between magnetic force grasp second thin plate, also be close to the another side of bit block, and through and the second vacuum cup supporting plate of steel between magnetic force grasp second thin plate; Because of bit block left and right sides face is concave shape; The side 0.5-1mm of the outstanding second vacuum cup supporting plate of second thin plate with the depression consistent size of another side of bit block, accomplishes the first of second thin plate and compresses;
3) take out the bit block that is fixed on the substrate; The second vacuum cup supporting plate receives the side action of stage clip; Make second thin plate be close to first thin plate; The side action power of stage clip is less than the second vacuum cup supporting plate and the second magnetic pressing plate chucking power to second thin plate, with true second protect thin plate and the second vacuum cup supporting plate and the second magnetic pressing plate relative position remain unchanged;
4) the crystal glass pressing plate of a width dimensions less than the first magnetic pressing plate and the second magnetic daylight opening placed on first thin plate and second thin plate; Start first air cylinder group and second air cylinder group; Withstand crystal glass pressing plate both sides from top to bottom; First thin plate and second thin plate are compressed simultaneously, accomplish the positioning and clamping of first thin plate and second thin plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Address after: 200233 No. 770, Xuhui District, Shanghai, Yishan Road Patentee after: Shanghai Laser Technology Research Institute Co.,Ltd. Address before: 200233 No. 770, Xuhui District, Shanghai, Yishan Road Patentee before: Shanghai Institute of Laser Technology |