CN116441712A - Laser composite welding device capable of preventing workpiece from deforming - Google Patents
Laser composite welding device capable of preventing workpiece from deforming Download PDFInfo
- Publication number
- CN116441712A CN116441712A CN202310307077.2A CN202310307077A CN116441712A CN 116441712 A CN116441712 A CN 116441712A CN 202310307077 A CN202310307077 A CN 202310307077A CN 116441712 A CN116441712 A CN 116441712A
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- laser
- welding
- welding device
- device capable
- axle motion
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- 238000003466 welding Methods 0.000 title claims abstract description 101
- 239000002131 composite material Substances 0.000 title claims abstract description 18
- 210000001503 joint Anatomy 0.000 claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 238000005452 bending Methods 0.000 claims abstract description 18
- 229910052602 gypsum Inorganic materials 0.000 claims description 5
- 239000010440 gypsum Substances 0.000 claims description 5
- 238000010191 image analysis Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 9
- 230000009471 action Effects 0.000 abstract description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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
- B23K26/21—Bonding by welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/0869—Devices involving movement of the laser head in at least one axial direction
- B23K26/0876—Devices involving movement of the laser head in at least one axial direction in at least two axial directions
- B23K26/0884—Devices involving movement of the laser head in at least one axial direction in at least two axial directions in at least in three axial directions, e.g. manipulators, robots
-
- 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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Robotics (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention provides a laser composite welding device capable of preventing a workpiece from deforming, and relates to the field of laser welding. This can prevent laser composite welding device of work piece deformation, comprises a workbench, two X axle motion modules are installed at the top of workstation, all install Z axle motion module on the drive end connecting block of X axle motion module, the bottom both sides at the portal frame are installed respectively at the top of Z axle motion module, the mid-mounting of portal frame has Y axle motion module, laser welding mechanism is installed to the drive end of Y axle motion module, upper surface one side of workstation still is equipped with positioning mechanism. Through in the welding process, when the movable block moves on the Y-axis movement module, the butt joint block on the bending rod is clamped on the butt joint frame in the wave groove, so that the action track of the laser welding gun is wave-shaped, the welding is in a one-section sub-welding state, the deformation in the welding process can be greatly reduced, and the welding quality is improved.
Description
Technical Field
The invention relates to the technical field of laser welding, in particular to a laser composite welding device capable of preventing deformation of a workpiece.
Background
The laser welding is applied to the fields of aerospace, important automobiles and sedans, is applied to engineering machinery, is not applied to mechanical manufacturing, is mainly expensive in engineering institutions, is the most mature in technology, and is applied to the fields of national defense and engineering institutions, such as laser composite welding of Shanghai institute of China academy of sciences.
The core of laser welding is a method for welding by using a welding gun to emit laser focusing light and using focused laser beams as energy to bombard heat generated by a weldment, and the laser has optical properties such as refraction, focusing and the like, so that the laser welding is very suitable for welding miniature parts and parts with poor accessibility, but the existing laser welding also has the defects of using, firstly, the workpiece is easy to deform in the continuous welding process of a welding line to influence the original function of the workpiece, secondly, in the welding process of the existing laser welding equipment, the welding gun cannot flexibly rotate to meet various welding requirements, workers are required to continuously adjust the position of the workpiece, the intelligence and the efficiency are not high, and the welding accuracy is also influenced, so that the problems need to be solved.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a laser composite welding device capable of preventing workpieces from deforming, which solves the problems that workpieces are easy to deform and a welding gun cannot flexibly rotate in the continuous welding process of a welding seam to meet various welding requirements, and the intelligent and efficiency are low and the welding accuracy is affected.
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a can prevent laser composite welding device of work piece deformation, includes the workstation, two X axle motion modules are installed at the top of workstation, all install Z axle motion module on the drive end connecting block of X axle motion module, the bottom both sides at the portal frame are installed respectively at the top of Z axle motion module, the mid-mounting of portal frame has Y axle motion module, laser welding mechanism is installed to the drive end of Y axle motion module, upper surface one side of workstation still is equipped with positioning mechanism.
Preferably, a gypsum gasket is laid in the middle of the upper surface of the workbench, and a PLC control screen is installed at the front end of the workbench.
Preferably, the laser welding mechanism comprises a movable block, the movable block is arranged at the driving end of the Y-axis movement module, the front end of the movable block is fixedly connected with a guide rail, the middle part of the guide rail is movably connected with a sliding block, the front end of the sliding block is fixedly connected with a connecting column, a gear motor is arranged in the connecting column, the driving end of the gear motor is connected with a mounting frame through a shaft rod, the middle part of the mounting frame is movably connected with a rotating shaft, and the middle part of the front end of the rotating shaft is connected with a laser welding gun through a connecting frame.
Preferably, a clamping ring is movably connected to the outer diameter of the middle part of the connecting column, the top end of the clamping ring is movably connected to one end of the electric cylinder, and the other end of the electric cylinder is arranged on the upper side of the laser welding gun.
Preferably, the middle part of the top end of the sliding block is fixedly connected with a bending rod, an electric telescopic rod is arranged at the tail end of the bending rod, and a butt joint block is arranged at the driving end of the electric telescopic rod.
Preferably, the top mid-mounting of movable block has the hydraulic stem, oval spacing is installed to the drive end of hydraulic stem, the middle part of oval spacing is equipped with oval perforation, the turn section setting of bending bar is in oval fenestrate inside, laser scanner is still installed to the bottom of movable block.
Preferably, the top fixedly connected with fixed plate of portal frame, the middle part of fixed plate is equipped with first wave groove, the upper portion of fixed plate is equipped with the second wave groove, the inside in first wave groove and second wave groove is all swing joint has the movable rod, the equal fixedly connected with butt joint frame of front end of movable rod.
Preferably, the positioning mechanism comprises four positioning grooves, positioning rods are movably connected in the positioning grooves, and locking threaded sleeves are connected with the outer diameters of the middle parts of the positioning rods in a threaded mode.
Preferably, the system also comprises a PLC control system, wherein the PLC control system comprises an image acquisition unit, an image analysis unit, a path planning unit and a command issuing unit.
Working principle: the method comprises the steps of placing a plate to be welded above a gypsum gasket of a workbench, firstly moving a positioning rod at the position of the positioning rod in a positioning groove, enabling the positioning rod to be attached to the edge of the plate to be positioned, then screwing a locking screw sleeve, fixing the positioning rod, then controlling a movable block to move through an X-axis movement module, a Y-axis movement module and a Z-axis movement module, scanning the plate by using a laser scanner, confirming the position of the plate and the position of the required welding, subsequently controlling an elliptical limiting frame to move up and down, driving a bending rod and a sliding block to move along with the bending rod, enabling a butt joint block to be aligned with a front end butt joint frame of the movable rod in a first wave groove or a second wave groove, enabling an electric telescopic rod to control the butt joint block to move to the inside the butt joint frame, completing butt joint work of a moving track, and then opening a laser welding gun to weld the plate.
The invention provides a laser composite welding device capable of preventing a workpiece from deforming. The beneficial effects are as follows:
1. according to the invention, when the movable block moves on the Y-axis movement module in the welding process, the butt joint block on the bending rod is clamped on the butt joint frame in the wave groove, so that the action track of the laser welding gun is wave-shaped, the welding is in a one-section split welding state, the deformation in the welding process can be greatly reduced, and the welding quality is improved.
2. The invention controls the up-down, left-right and front-back movement of the laser welding gun through the X-axis movement module, the Y-axis movement module and the Z-axis movement module, and can drive the mounting frame to rotate through the gear motor to drive the laser welding gun to transversely rotate, and can drive the laser welding gun to longitudinally rotate through the expansion and contraction of the electric cylinder, thereby controlling the welding angle and improving the application range and the welding accuracy.
3. According to the invention, the plate is positioned by the positioning mechanism before welding, and then the welding position and the welding track setting are determined by the laser scanner, so that the intelligent, welding accuracy and welding efficiency are higher, and the welding requirement is better met.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a front view of a laser welding mechanism according to the present invention;
FIG. 4 is a schematic perspective view of a laser welding mechanism according to the present invention;
FIG. 5 is an enlarged view of FIG. 1 at B;
FIG. 6 is a schematic flow chart of the system of the present invention.
Wherein, 1, a workbench; 2. an X-axis movement module; 3. a Z-axis movement module; 4. a portal frame; 5. a Y-axis movement module; 6. a laser welding mechanism; 601. a movable block; 602. a guide rail; 603. a slide block; 604. a connecting column; 605. a speed reducing motor; 606. a mounting frame; 607. a rotating shaft; 608. a laser welding gun; 609. a clasp; 610. an electric cylinder; 611. bending the rod; 612. an electric telescopic rod; 613. a butt joint block; 614. a hydraulic rod; 615. an oval limiting frame; 616. a laser scanner; 617. a fixing plate; 618. a first wave groove; 619. a second wave groove; 620. a movable rod; 621. a butt joint frame; 7. a positioning mechanism; 701. a positioning groove; 702. a positioning rod; 703. a locking screw sleeve; 8. a gypsum pad; 9. and a PLC control screen.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples:
referring to fig. 1-6, an embodiment of the invention provides a laser composite welding device capable of preventing a workpiece from deforming, as shown in fig. 1, comprising a workbench 1, wherein two X-axis motion modules 2 are installed at the top of the workbench 1, a Z-axis motion module 3 is installed on a driving end connecting block of the X-axis motion module 2, the tops of the Z-axis motion modules 3 are respectively installed at two sides of the bottom end of a portal frame 4, a Y-axis motion module 5 is installed in the middle of the portal frame 4, a laser welding mechanism 6 is installed at the driving end of the Y-axis motion module 5, and a positioning mechanism 7 is further arranged at one side of the upper surface of the workbench 1.
Specifically, the X-axis movement module 2 and the Y-axis movement module 5 in this embodiment are linear movement modules of stepper motors matched with ball screws, the Y-axis movement module 5 is controlled by a hydraulic cylinder, and may also be controlled by a cylinder structure, and the X-axis movement module 2, the Y-axis movement module 5 and the Z-axis movement module 3 control the front-back, left-right and up-down movement of the laser welding mechanism 6, and the positioning mechanism 7 positions the plate.
Further, gypsum gasket 8 has been laid at the upper surface middle part of workstation 1, reduces panel to the wearing and tearing of workstation 1 surface, and PLC control panel 9 is installed to workstation 1's front end, conveniently carries out automated control.
Further, referring to fig. 3, the laser welding mechanism 6 includes a movable block 601, the movable block 601 is mounted on a driving end of the Y-axis moving module 5, the Y-axis moving module 5 controls the movable block 601 to move, a guide rail 602 is fixedly connected to a front end of the movable block 601, a slide block 603 is movably connected to a middle portion of the guide rail 602, the slide block 603 can slide up and down on the guide rail 602, the position is convenient to adjust, a connecting column 604 is fixedly connected to a front end of the slide block 603, a gear motor 605 is mounted in the connecting column 604, a driving end of the gear motor 605 is connected with a mounting frame 606 through a shaft rod, the gear motor 605 can control the mounting frame 606 to rotate, so that the position of the laser welding gun 608 is adjusted, a rotating shaft 607 is movably connected to a middle portion of a front end of the mounting frame 606, the laser welding gun 608 is connected to a main welding tool through a connecting frame.
Further, referring to fig. 3 in combination with fig. 4, a snap ring 609 is movably connected to the outer diameter of the middle part of the connecting column 604, the top end of the snap ring 609 is movably connected to one end of an electric cylinder 610, the other end of the electric cylinder 610 is installed on the upper side of the laser welding gun 608, and the angle rotation adjustment of the laser welding gun 608 can be controlled through the expansion and contraction of the electric cylinder 610.
Further, referring to fig. 2 in combination with fig. 3, a bending rod 611 is fixedly connected to the middle of the top end of the sliding block 603, an electric telescopic rod 612 is installed at the end of the bending rod 611, a butt joint block 613 is installed at the driving end of the electric telescopic rod 612, the electric telescopic rod 612 controls the butt joint block 613 to move, the butt joint block 613 and the butt joint frame 621 are conveniently in butt joint or separation, a hydraulic rod 614 is installed at the middle of the top end of the movable block 601, an oval limiting frame 615 is installed at the driving end of the hydraulic rod 614, an oval through hole is arranged in the middle of the oval limiting frame 615, a turning section of the bending rod 611 is arranged in the oval through hole, the width of the oval through hole is larger than the diameter of the bending rod 611, so that after the butt joint block 613 is in butt joint, the bending rod 611 can still move up and down without collision with the wavy movement track, the bottom end of the movable block 601 is further provided with the laser scanner 616 for scanning the plate, basic information and welding seam positions of the plate are obtained and transmitted to the PLC control screen 9, the top end of the portal frame 4 is fixedly connected with the fixing plate 617, the middle part of the fixing plate 617 is provided with the first wave groove 618, the upper part of the fixing plate 617 is provided with the second wave groove 619, the wave intervals of the two wave grooves are different, the condition of separate welding of welding seams with different lengths is facilitated, the inner parts of the first wave groove 618 and the second wave groove 619 are movably connected with the movable rod 620, and the front end of the movable rod 620 is fixedly connected with the butt joint frame 621 for completing butt joint with the butt joint block 613.
Specifically, the X-axis motion module 2, the Y-axis motion module 5 and the Z-axis motion module 3 control the movable block 601 to move, the laser scanner 616 is used for scanning the plate, the position of the plate and the position to be welded are confirmed, then the hydraulic rod 614 controls the elliptical limiting frame 615 to move up and down, the bending rod 611 and the sliding block 603 are driven to move along, the butt joint block 613 is aligned with the butt joint frame 621 at the front end of the movable rod 620 in the first wavy groove 618 or the second wavy groove 619, the electric telescopic rod 612 controls the butt joint block 613 to move into the butt joint frame 621 to finish the butt joint work of the moving track, then the laser welding gun 608 is opened to perform the welding work on the plate, in the welding process, the speed reducing motor 605 can drive the mounting frame 606 to rotate, the laser welding gun 608 to transversely rotate, so as to control the welding angle, and the longitudinal synchronous rotation of the laser welding gun 608 can not be influenced due to the rotation of the clamping ring 609, the application range and the welding precision are improved, meanwhile, the movable block 601 can move on the Y-axis motion 5 and the bending rod 611 is welded on the wavy frame 621 in a mode, and the welding quality is greatly improved due to the fact that the welding quality is deformed in the welding process.
Further, referring to fig. 5, the positioning mechanism 7 includes four positioning slots 701, wherein positioning rods 702 are movably connected in the positioning slots 701, and locking threaded sleeves 703 are screwed on the outer diameters of the middle parts of the positioning rods 702.
Specifically, the positioning rod 702 is moved to a position in the positioning groove 701, so that the positioning rod 702 is attached to the edge of the plate for positioning, and then the locking screw 703 is screwed to fix the positioning rod 702, thereby completing positioning of the plate.
Further, referring to fig. 6, the present invention further includes a PLC control system, where the PLC control system includes an image acquisition unit, an image analysis unit, a path planning unit, and an instruction issuing unit.
Specifically, the image acquisition unit is electrically connected with the laser scanner 616 and is used for integrally scanning the plate, the image analysis unit, the path planning unit and the instruction issuing unit are all arranged in the PLC control screen 9, the image analysis unit analyzes the scanned image to obtain basic data and weld positions of the plate, the path planning unit plans a welding route, the instruction issuing unit issues welding quality, and operation of various devices is controlled.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a can prevent laser composite welding device of work piece deformation, includes workstation (1), its characterized in that, two X axle motion modules (2) are installed at the top of workstation (1), all install Z axle motion module (3) on the drive end connecting block of X axle motion module (2), the bottom both sides at portal frame (4) are installed respectively at the top of Z axle motion module (3), the mid-mounting of portal frame (4) has Y axle motion module (5), laser welding mechanism (6) are installed to the drive end of Y axle motion module (5), upper surface one side of workstation (1) still is equipped with positioning mechanism (7).
2. The laser composite welding device capable of preventing deformation of workpieces according to claim 1, wherein a gypsum gasket (8) is laid in the middle of the upper surface of the workbench (1), and a PLC control screen (9) is installed at the front end of the workbench (1).
3. The laser composite welding device capable of preventing deformation of workpieces according to claim 1, wherein the laser welding mechanism (6) comprises a movable block (601), the movable block (601) is installed on a driving end of a Y-axis movement module (5), a guide rail (602) is fixedly connected to the front end of the movable block (601), a sliding block (603) is movably connected to the middle of the guide rail (602), a connecting column (604) is fixedly connected to the front end of the sliding block (603), a speed reducing motor (605) is installed in the connecting column (604), a driving end of the speed reducing motor (605) is connected with a mounting frame (606) through a shaft rod, a rotating shaft (607) is movably connected to the middle of the mounting frame (606), and a laser welding gun (608) is connected to the middle of the front end of the rotating shaft (607) through a connecting frame.
4. A laser composite welding device capable of preventing deformation of a workpiece according to claim 3, wherein a clamping ring (609) is movably connected to the outer diameter of the middle part of the connecting column (604), the top end of the clamping ring (609) is movably connected to one end of an electric cylinder (610), and the other end of the electric cylinder (610) is installed on the upper side of a laser welding gun (608).
5. A laser composite welding device capable of preventing deformation of a workpiece according to claim 3, wherein a bending rod (611) is fixedly connected to the middle part of the top end of the sliding block (603), an electric telescopic rod (612) is installed at the tail end of the bending rod (611), and a butt joint block (613) is installed at the driving end of the electric telescopic rod (612).
6. The laser composite welding device capable of preventing deformation of workpieces according to claim 5, wherein a hydraulic rod (614) is installed in the middle of the top end of the movable block (601), an oval limiting frame (615) is installed at the driving end of the hydraulic rod (614), an oval perforation is arranged in the middle of the oval limiting frame (615), a turning section of the bending rod (611) is arranged in the oval perforation, and a laser scanner (616) is further installed at the bottom end of the movable block (601).
7. The laser composite welding device capable of preventing deformation of workpieces according to claim 1, wherein a fixing plate (617) is fixedly connected to the top end of the portal frame (4), a first wave groove (618) is formed in the middle of the fixing plate (617), a second wave groove (619) is formed in the upper portion of the fixing plate (617), movable rods (620) are movably connected to the first wave groove (618) and the second wave groove (619), and butt-joint frames (621) are fixedly connected to the front ends of the movable rods (620).
8. The laser composite welding device capable of preventing deformation of workpieces according to claim 1, wherein the positioning mechanism (7) comprises four positioning grooves (701), positioning rods (702) are movably connected to the inside of the positioning grooves (701), and locking screw sleeves (703) are connected to the outer diameters of the middle parts of the positioning rods (702) in a threaded mode.
9. The laser hybrid welding device capable of preventing deformation of a workpiece according to claim 1, further comprising a PLC control system, wherein the PLC control system comprises an image acquisition unit, an image analysis unit, a path planning unit and a command issuing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310307077.2A CN116441712B (en) | 2023-03-27 | 2023-03-27 | Laser composite welding device capable of preventing workpiece from deforming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310307077.2A CN116441712B (en) | 2023-03-27 | 2023-03-27 | Laser composite welding device capable of preventing workpiece from deforming |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116441712A true CN116441712A (en) | 2023-07-18 |
| CN116441712B CN116441712B (en) | 2024-05-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310307077.2A Active CN116441712B (en) | 2023-03-27 | 2023-03-27 | Laser composite welding device capable of preventing workpiece from deforming |
Country Status (1)
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| CN (1) | CN116441712B (en) |
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| CN117654779B (en) * | 2023-12-29 | 2024-06-07 | 华能辛店发电有限公司 | Dust removing device and method for thermal power plant |
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