CN111390389A - Laser straight seam welding machine - Google Patents
Laser straight seam welding machine Download PDFInfo
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- CN111390389A CN111390389A CN202010264737.XA CN202010264737A CN111390389A CN 111390389 A CN111390389 A CN 111390389A CN 202010264737 A CN202010264737 A CN 202010264737A CN 111390389 A CN111390389 A CN 111390389A
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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
- B23K26/24—Seam welding
- B23K26/26—Seam welding of rectilinear seams
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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
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/0869—Devices involving movement of the laser head in at least one axial direction
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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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- 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
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
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- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
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- Laser Beam Processing (AREA)
Abstract
The invention discloses a laser straight seam welding machine applied to the technical field of magnesium alloy welding, which comprises a workbench, a welding head and a welding head, wherein the workbench is arranged on the workbench; a first welding assembly and a second welding assembly are arranged on the workbench; the first welding assembly and the second welding assembly are arranged side by side; a supporting seat is arranged between the first welding assembly and the second welding assembly and is in sliding connection with the workbench; the first welding assembly comprises a welding device, an inner abutting device, an outer abutting device and a bottom plate; the welding device, the inner abutting device and the outer abutting device are all positioned on the bottom plate; the inner abutting part of the inner abutting device is positioned on the inner side of the workpiece; the external abutting part of the external abutting device is positioned outside the workpiece; the welding device is located near the outer abutting device, and a welding part of the welding device faces a workpiece right-angle welding position. The automatic production line has the advantages of high automation degree, capability of replacing the traditional labor force, improvement of production efficiency and production quality and good practicability.
Description
Technical Field
The invention relates to the technical field of magnesium alloy laser welding, in particular to a laser straight seam welding machine.
Background
The magnesium alloy has the advantages of high specific strength and specific stiffness, good electrical conductivity, thermal conductivity and electromagnetic shielding property, easiness in recycling and the like, is widely applied to the fields of aerospace, rail transit, automobiles and electronic manufacturing, and the application of the magnesium alloy material is determined by the physical properties of magnesium metal and depends on the development of a forming technology of the magnesium metal. Welding is the primary forming technique in magnesium alloy joining. In recent years, with the improvement of corrosion resistance, creep resistance and the like of magnesium alloys and the expansion of the application fields thereof, magnesium alloy welding technology has been a hot spot of global welding field research, and welding equipment matched with the magnesium alloy welding technology is also manufactured. Typical or common prior art techniques are:
for example, CN104384696B discloses a resistance welding process and welding equipment for aluminum alloy plates, in the invention, a pressure sensor is used for detecting the reaction force of aluminum alloy thermal expansion, a welding control system feeds back the welding pressure by detecting a dynamic resistance in real time and the pressure sensor, and the welding control system can automatically adjust the welding current and the welding time within each millisecond in the welding process, thereby achieving a relatively ideal welding effect. Another classic, for example, CN105618900A, discloses an aluminum alloy profile welding device, which can control the welding speed, protect the welding process, and can be used at night, and has strong practicability. Referring to the prior art of CN105522263A, the invention improves the traditional argon tungsten-arc welding scheme, adopts low-arc double-layer welding, and uses a tungsten electrode to stir a molten pool during the second-layer welding, thereby effectively avoiding the defects of inclusion, bubbles and the like, improving the yield of welded products, making up the obvious defects of the traditional argon tungsten-arc welding on the welding process, and greatly reducing the production and maintenance cost of the magnesium alloy for aviation.
In summary, through the mass search of the applicant, at least the problems that the straight welding cannot be accurately realized, the workpiece is easy to shift, and the welding quality cannot be guaranteed exist in the field, so that the laser straight welding machine needs to be developed or improved.
Disclosure of Invention
The present invention aims to provide a laser straight seam welding machine to solve the problems.
In order to achieve the above object, the present invention provides a laser straight seam welding machine, which comprises a worktable; the workbench is provided with a first welding assembly and a second welding assembly which has the same structure as the first welding assembly; the first welding assembly and the second welding assembly are arranged side by side; a supporting seat for supporting a workpiece is arranged between the first welding assembly and the second welding assembly, and the supporting seat is connected with the workbench in a sliding manner; the first welding assembly comprises a welding device, an inner abutting device used for abutting against the inner side of the workpiece, an outer abutting device used for abutting against the outer side of the workpiece and a bottom plate capable of sliding relative to the workbench; the welding device, the inner abutting device and the outer abutting device are all positioned on the bottom plate; the inner abutting part of the inner abutting device is positioned on the inner side of the workpiece; the external abutting part of the external abutting device is positioned outside the workpiece; a limiting space for limiting the position of the right-angle welding position of the workpiece is formed between the inner abutting part of the inner abutting device and the outer abutting part of the outer abutting device in a matched manner; the welding device is located near the outer abutting device, and a welding part of the welding device faces a workpiece right-angle welding position.
Preferably, the welding device comprises a welding gun body and a lifting device for driving the welding gun body to move up and down; the welding gun body comprises a welding gun and an adjusting seat connected with the moving end of the lifting device; a cavity with an opening at the top is arranged in the adjusting seat; the adjusting screw rod penetrates through the shell of the adjusting seat and extends into the cavity; the adjusting screw rod is in threaded connection with a connecting seat; the welding gun is arranged on the connecting seat.
Preferably, the inner abutting device comprises a first mounting frame, a first inner abutting block, a second inner abutting block and an inner limiting block; the first inner abutting block and the second inner abutting block are arranged vertically to each other; the first mounting rack is provided with a plurality of first sliding rails which are vertically arranged; the inner limiting block is connected to the first sliding rail in a sliding manner; a first driving device for driving the first inner abutting block to be far away from and close to the inner limiting block and a second driving device for driving the second inner abutting block to be far away from and close to the inner limiting block are arranged in the inner limiting block; and the first mounting frame is also provided with a third driving device for driving the inner limiting block to move along the first sliding rail.
Preferably, the outer abutment means comprises a first outer abutment assembly and a second outer abutment assembly; the first outer abutting assembly comprises a second mounting frame, a first outer abutting block and an eighth driving device for driving the first outer abutting block to move away from and close to the workpiece; the second outer abutting assembly comprises a third mounting frame, a second outer abutting block and a fourth driving device for driving the second outer abutting block to move away from and close to the workpiece; the first outer abutting block and the second outer abutting block are vertically arranged.
Preferably, the second mounting frame is provided with a second slide rail and a sixth driving device; the second slide rail is connected with a first mounting seat in a sliding manner, and the first mounting seat is connected with the output end of the sixth driving device; a third sliding rail is arranged on the first mounting seat; the first outer abutting block is connected to the third slide rail in a sliding manner; the fifth driving device is installed on the first installation seat, and an output end of the fifth driving device is connected with the first outer abutting block.
Preferably, a fourth slide rail and an eighth driving device are arranged on the third mounting frame; a second mounting seat is connected to the fourth slide rail in a sliding manner, and the second mounting seat is connected with the output end of the eighth driving device; a fifth slide rail is arranged on the second mounting seat; the second outer abutting block is connected to the fifth sliding rail in a sliding mode; the fourth driving device is installed on the second mounting seat, and an output end of the fourth driving device is connected with the second outer abutting block.
Preferably, the first inner abutment block is parallel to the first outer abutment block; the second inner abutment block is parallel to the second outer abutment block; the second slide rail and the fourth slide rail are vertically arranged.
Preferably, a first insert block is arranged at one end part of the first outer abutting block facing the workpiece; a second insert block is arranged at one end part of the second outer abutting block facing the workpiece; the joint of the first insert block and the second insert block is provided with a tooth part respectively; the tooth parts of the first insert block and the tooth parts of the second insert block are arranged in a staggered fit mode, and right-angle positions used for correcting the position of a workpiece are formed in a matched mode.
Preferably, a plurality of sixth sliding rails are arranged on the workbench along the length direction of the workbench; and the first welding assembly, the second welding assembly and the supporting seat are respectively in sliding connection with the sixth sliding rail.
Preferably, a third mounting seat is arranged on the supporting seat; a seventh driving device is arranged on the third mounting seat; the seventh driving device is positioned above the workpiece, and the moving end of the seventh driving device faces the workpiece; and a pressing block for pressing the workpiece is arranged on the moving end of the seventh driving device.
Compared with the prior art, the laser straight seam welding machine that above-mentioned technical scheme provided, its beneficial effect includes:
1. the first welding assembly and the second welding assembly are arranged, so that positioning, clamping and welding of workpieces are achieved; through being provided with outer butt device and interior butt device to guarantee the straightness that hangs down of work piece welded, guaranteed the welding quality of work piece.
2. According to the invention, the X-axis direction correction and the Y-axis direction correction are arranged, and the inner abutting part and the outer abutting part are respectively arranged on the inner side and the outer side of the workpiece in a matched manner, so that the verticality of the workpiece is ensured, and the welding quality is further ensured.
3. The automatic production line has high automation degree, replaces the traditional labor force, improves the production efficiency and the production quality, and has good practicability.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.
FIG. 1 is a schematic structural diagram of a welding apparatus of a laser longitudinal welding machine according to embodiments 1 to 3 of the present invention;
FIG. 2 is a schematic structural view of an outer abutting device of a laser longitudinal welding machine according to embodiments 1 to 3 of the present invention;
FIG. 3 is a schematic structural view of an inner abutment device of a laser longitudinal welding machine according to embodiments 1 to 3 of the present invention;
FIG. 4 is a schematic structural diagram of a laser longitudinal welding machine according to embodiments 1 to 3 of the present invention;
FIG. 5 is a second schematic structural view of a laser longitudinal welding machine in embodiments 1 to 3 of the present invention;
FIG. 6 is a schematic diagram of the layout structure of A in FIG. 5;
FIG. 7 is a third schematic structural view of a laser longitudinal welding machine in embodiments 1 to 3 of the present invention;
FIG. 8 is a fourth schematic view of a laser longitudinal welding machine according to embodiments 1 to 3 of the present invention;
FIG. 9 is a fifth schematic view of a laser longitudinal welding machine according to embodiments 1 to 3 of the present invention.
Description of reference numerals: 1-a workbench; 2-a first welded assembly; 3-a second welded assembly; 4-a support seat; 5-a workpiece; 6-pressing the block; 7-a welding device; 71-a torch body; 711-a welding gun; 712-an adjustment seat; 713-adjusting screw rod; 714-a connecting seat; 72-a lifting device; 8-inner abutment means; 81-a first mount; 82-a first inner abutment block; 83-a second inner abutment block; 84-an inner limiting block; 85-a first slide rail; 86-a first drive; 87-a second drive; 88-a third drive; 9-external abutment means; 91-a first outer abutment assembly; 911-a second mounting frame; 912-a first abutment block; 913-a fifth drive; 92-a second outer abutment block; 921 — a third mounting frame; 922-a second outer abutment block; 923-a fourth drive device; 10-a base plate; 11-a second slide rail; 12-a first mount; 13-a third slide rail; 15-a fourth slide rail; 16-a second mount; 17-a fifth slide rail; 18-sixth drive means; 19-a first insert; 20-a second insert; 21-a tooth portion; 22-a sixth slide rail; 23-a third mount; 24-a seventh drive; 25-eighth drive means; 26-a seventh slide rail; 28-a corrective device; 281-a support table; 282-a protruding block; 283-an extension block; 284-ninth drive means.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to embodiments thereof; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Other systems, methods, and/or features of the present embodiments will become apparent to those skilled in the art upon review of the following detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description, be within the scope of the invention, and be protected by the accompanying claims. Additional features of the disclosed embodiments are described in, and will be apparent from, the detailed description that follows.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms described above will be understood by those of ordinary skill in the art according to the specific circumstances.
The first embodiment is as follows:
a laser straight seam welding machine as shown in fig. 1 to 9, which comprises a worktable 1; a first welding assembly 2 and a second welding assembly 3 which has the same structure as the first welding assembly 2 are arranged on the workbench 1; the first welding assembly 2 and the second welding assembly 3 are arranged side by side; a supporting seat 4 for supporting a workpiece 5 is arranged between the first welding assembly 2 and the second welding assembly 3, and the supporting seat 4 is connected with the workbench 1 in a sliding manner; the first welding assembly 2 comprises a welding device 7, an inner abutting device 8 for abutting against the inner side of the workpiece 5, an outer abutting device 9 for abutting against the outer side of the workpiece 5 and a bottom plate 10 capable of sliding relative to the workbench 1; the welding device 7, the inner abutting device 8 and the outer abutting device 9 are all positioned on the bottom plate 10; the inner abutting part of the inner abutting device 8 is positioned on the inner side of the workpiece 5; the external abutment portion of the external abutment device 9 is located outside the workpiece 5; a limiting space for limiting the right-angle welding position of the workpiece 5 is formed between the inner abutting part of the inner abutting device 8 and the outer abutting part of the outer abutting device 9 in a matched manner; the welding device 7 is located in the vicinity of the outer abutment device 9 with the welding part of the welding device 7 facing the right-angle welding position of the work piece 5.
The welding device 7 comprises a welding gun body 71 and a lifting device 72 for driving the welding gun body 71 to move up and down; the welding gun body 71 comprises a welding gun 711 and an adjusting seat 712 connected with the moving end of the lifting device 72; a cavity with an open top is arranged in the adjusting seat 712; an adjusting screw 713 passing through the housing of the adjusting seat 712 and extending into the cavity; the adjusting screw 713 is in threaded connection with a connecting seat 714; the welding gun 711 is mounted on the connection seat 714.
Wherein the inner abutting device 8 comprises a first mounting frame 81, a first inner abutting block 82, a second inner abutting block 83 and an inner limiting block 84; the first inner abutment block 82 and the second inner abutment block 83 are arranged perpendicular to each other; a plurality of first sliding rails 85 which are vertically arranged are arranged on the first mounting rack 81; the inner limiting block 84 is slidably connected to the first slide rail 85; a first driving device 86 for driving the first inner abutting block 82 to move away from and close to the inner limiting block 84 and a second driving device 87 for driving the second inner abutting block 83 to move away from and close to the inner limiting block 84 are arranged in the inner limiting block 84; the first mounting bracket 81 is further provided with a third driving device 88 for driving the inner limiting block 84 to move along the first slide rail 85.
Wherein the outer abutment device 9 comprises a first outer abutment assembly 91 and a second outer abutment assembly 92; the first outer abutment assembly 91 comprises a second mounting bracket 911, a first outer abutment block 912 and a fifth drive means 913 for driving the first outer abutment block 913 away from and towards the workpiece 5; the second outer abutment assembly 92 comprises a third mounting frame 921, a second outer abutment block 922 and a fourth driving means 923 for driving the second outer abutment block 922 away from and towards the workpiece 5; the first outer abutment block 912 and the second outer abutment block 922 are arranged vertically.
The second mounting bracket 911 in this embodiment 1 is provided with a second slide rail 11 and a sixth driving device 18; the second slide rail 11 is connected with a first mounting seat 12 in a sliding manner, and the first mounting seat 12 is connected with an output end of the sixth driving device 18; a third slide rail 13 is arranged on the first mounting seat 12; the first outer abutting block 912 is slidably connected to the third slide rail 13; the fifth driving device 913 is disposed on the first mounting seat 12, and an output end of the fifth driving device 913 is connected to the first outer contact block 912.
Moreover, a fourth slide rail 15 and an eighth driving device 25 are arranged on the third mounting frame 921; a second mounting seat 16 is connected to the fourth slide rail 15 in a sliding manner, and the second mounting seat 16 is connected to an output end of the eighth driving device 25; a fifth slide rail 17 is arranged on the second mounting seat 16; the second outer abutment block 922 is slidably connected to the fifth slide rail 17; the fourth driving device 923 is installed on the second mounting base 16, and an output end of the fourth driving device 923 is connected to the second outer joint block 922.
The first inner abutment block 82 and the first outer abutment block 912 in this embodiment 1 are parallel; the second inner abutment block 83 is parallel to the second outer abutment block 922; the second slide rail 11 and the fourth slide rail 15 are arranged vertically; a first inserting block 19 is arranged at one end part of the first outer abutting block 912 facing the workpiece; a second insert block 20 is arranged at one end of the second outer abutting block 922 facing the workpiece 5; the joints of the first plug block 19 and the second plug block 20 are respectively provided with a tooth part 21; the teeth of the first insert block and the teeth of the second insert block 20 are arranged in a staggered fit mode, and a right-angle position used for correcting the position of the workpiece 5 is formed in a matched mode.
In addition, in this embodiment 1, the workbench 1 is provided with a plurality of sixth slide rails 22 along the length direction thereof; the first welding assembly 2, the second welding assembly 3 and the supporting seat 4 are respectively connected with the sixth sliding rail 22 in a sliding manner.
Moreover, a third mounting seat 23 is arranged on the supporting seat 4 in the embodiment 1; a seventh driving device 24 is arranged on the third mounting seat 23; the seventh driving device 24 is positioned above the workpiece 5 and the moving end of the seventh driving device 24 faces the workpiece 5; and a pressing block 6 for pressing the workpiece 5 is arranged at the moving end of the seventh driving device 24.
Example two:
a laser straight seam welding machine as shown in fig. 1 to 9, which comprises a worktable 1; a first welding assembly 2 and a second welding assembly 3 which has the same structure as the first welding assembly 2 are arranged on the workbench 1; the first welding assembly 2 and the second welding assembly 3 are arranged side by side; a supporting seat 4 for supporting a workpiece 5 is arranged between the first welding assembly 2 and the second welding assembly 3, and the supporting seat 4 is connected with the workbench 1 in a sliding manner; the first welding assembly 2 comprises a welding device 7, an inner abutting device 8 for abutting against the inner side of the workpiece 5, an outer abutting device 9 for abutting against the outer side of the workpiece 5 and a bottom plate 10 capable of sliding relative to the workbench 1; the welding device 7, the inner abutting device 8 and the outer abutting device 9 are all positioned on the bottom plate 10; the inner abutting part of the inner abutting device 8 is positioned on the inner side of the workpiece 5; the external abutment portion of the external abutment device 9 is located outside the workpiece 5; a limiting space for limiting the right-angle welding position of the workpiece 5 is formed between the inner abutting part of the inner abutting device 8 and the outer abutting part of the outer abutting device 9 in a matched manner; the welding device 7 is located in the vicinity of the outer abutment device 9 with the welding part of the welding device 7 facing the right-angle welding position of the work piece 5.
As shown in fig. 1, in order to ensure accurate welding and linear welding of a welding gun 711, the welding device 7 in this embodiment 2 includes a welding gun body 71 and a lifting device 72 for driving the welding gun body 71 to move up and down; the welding gun body 71 comprises a welding gun 711 and an adjusting seat 712 connected with the moving end of the lifting device 72; a cavity with an open top is arranged in the adjusting seat 712; an adjusting screw 713 passing through the housing of the adjusting seat 712 and extending into the cavity; the adjusting screw 713 is in threaded connection with a connecting seat 714; the welding gun 711 is mounted on the connection seat 714.
As shown in fig. 2 to 3, in order to position the workpiece 5 and thus ensure the welding quality of the workpiece 5 and the straightness of the weld, the inner abutting device 8 in this embodiment 2 includes a first mounting bracket 81, a first inner abutting block 82, a second inner abutting block 83, and an inner limiting block 84; the first inner abutment block 82 and the second inner abutment block 83 are arranged perpendicular to each other; a plurality of first sliding rails 85 which are vertically arranged are arranged on the first mounting rack 81; the inner limiting block 84 is slidably connected to the first slide rail 85; a first driving device 86 for driving the first inner abutting block 82 to move away from and close to the inner limiting block 84 and a second driving device 87 for driving the second inner abutting block 83 to move away from and close to the inner limiting block 84 are arranged in the inner limiting block 84; the first mounting bracket 81 is further provided with a third driving device 88 for driving the inner limiting block 84 to move along the first slide rail 85.
As shown in fig. 5 to 3, in order to cooperate with the use of the inner abutting device 8 to define the position of the workpiece 5 from the inner and outer cooperation of the workpiece 5 and prevent the workpiece 5 from shifting to affect the welding device, the outer abutting device 9 in the embodiment 2 comprises a first outer abutting assembly 91 and a second outer abutting assembly 92; the first outer abutment assembly 91 comprises a second mounting bracket 911, a first outer abutment block 912 and a fifth drive means 913 for driving the first outer abutment block 913 away from and towards the workpiece 5; the second outer abutment assembly 92 comprises a third mounting frame 921, a second outer abutment block 922 and a fourth driving means 923 for driving the second outer abutment block 922 away from and towards the workpiece 5; the first outer abutment block 912 and the second outer abutment block 922 are arranged vertically.
In order to adapt to workpieces 5 with different sizes, the second mounting frame 911 in the embodiment 2 is provided with a second slide rail 11 and a sixth driving device 18; the second slide rail 11 is connected with a first mounting seat 12 in a sliding manner, and the first mounting seat 12 is connected with an output end of the sixth driving device 18; a third slide rail 13 is arranged on the first mounting seat 12; the first outer abutting block 912 is slidably connected to the third slide rail 13; the fifth driving device 913 is disposed on the first mounting seat 12, and an output end of the fifth driving device 913 is connected to the first outer contact block 912.
Moreover, a fourth slide rail 15 and an eighth driving device 25 are arranged on the third mounting frame 921; a second mounting seat 16 is connected to the fourth slide rail 15 in a sliding manner, and the second mounting seat 16 is connected to an output end of the eighth driving device 25; a fifth slide rail 17 is arranged on the second mounting seat 16; the second outer abutment block 922 is slidably connected to the fifth slide rail 17; the fourth driving device 923 is installed on the second mounting base 16, and an output end of the fourth driving device 923 is connected to the second outer joint block 922.
The first inner abutment block 82 and the first outer abutment block 912 in this embodiment 2 are parallel; the second inner abutment block 83 is parallel to the second outer abutment block 922; the second slide rail 11 and the fourth slide rail 15 are arranged vertically; a first inserting block 19 is arranged at one end part of the first outer abutting block 912 facing the workpiece; a second insert block 20 is arranged at one end of the second outer abutting block 922 facing the workpiece 5; the joints of the first plug block 19 and the second plug block 20 are respectively provided with a tooth part 21; the teeth of the first insert block and the teeth of the second insert block 20 are arranged in a staggered fit mode, and a right-angle position used for correcting the position of the workpiece 5 is formed in a matched mode.
In addition, in order to adapt to workpieces 5 with different shapes, no matter regular or irregular workpieces 5, the positioning of the workpieces 5 can be realized through the position adjustment of the first welding assembly 2, the second welding assembly 3 and the supporting seat 4 in the embodiment 2, a plurality of sixth sliding rails 22 are arranged on the workbench 1 in the embodiment 2 along the length direction thereof; the first welding assembly 2, the second welding assembly 3 and the supporting seat 4 are respectively connected with the sixth sliding rail 22 in a sliding manner.
Moreover, a third mounting seat 23 is arranged on the supporting seat 4 in the embodiment 2; a seventh driving device 24 is arranged on the third mounting seat 23; the seventh driving device 24 is positioned above the workpiece 5 and the moving end of the seventh driving device 24 faces the workpiece 5; and a pressing block 6 for pressing the workpiece 5 is arranged at the moving end of the seventh driving device 24.
As shown in fig. 9, in order to ensure stable support of the workpiece 5 in this embodiment 2, seventh slide rails 26 are disposed on the bottom plate 10 on both sides of the supporting seat 4; each seventh slide rail 26 is slidably connected with a correcting device 28; the correcting device 28 comprises a support table 281 abutted to the lower part of the workpiece 5 and a convex block 282 which is arranged on one end surface of the support table 281 far away from the workpiece 5 and abutted to the side surface of the workpiece 5; an extension block 283 extends upwards from the support table 281; a ninth driving device 284 is arranged on the extension block 283, and the moving end of the ninth driving device 284 faces the support table 281; the moving end of the ninth driving device 284 is provided with a contact block pressed on the workpiece 5.
Moreover, a limiting seat is arranged on the bottom plate 10 corresponding to the inner limiting block 84; one end face, far away from the bottom plate 10, of the limiting seat is supported with the bottom of the workpiece.
In the embodiment 2, the first welding assembly 2, the second welding assembly 3, the supporting seat 4 and the correcting device 28 are designed, so that the movement of the workpiece in the X/Y/Z axis direction is limited, the displacement of the workpiece is reduced, and meanwhile, the welding quality and the straightness of a welding seam are ensured; moreover, the welding gun 711 is subjected to laser welding, so that the welding quality and the welding efficiency of the welding gun 711 are greatly improved; moreover, the workpiece 5 is made of magnesium alloy and has the advantages of high specific strength and specific rigidity, good electrical conductivity, thermal conductivity and electromagnetic shielding performance, easiness in recycling and the like, so that the laser welding machine with more diverse functions and higher automation is required for welding the magnesium alloy to complete laser welding, and parts made of the magnesium alloy are more perfect.
Example three:
in another embodiment of the welding torch 711, the welding torch 7111 includes: a laser irradiation unit that irradiates laser light; a visible light sensor that detects the emission intensity of visible light emitted from a welded portion formed by the laser welding irradiated from the laser irradiation portion; and a control unit capable of switching an operation of the laser irradiation unit between a welding mode in which the plurality of metal members are welded to each other by irradiation of the laser beam and an inspection mode in which the welded portion is irradiated with the laser beam again as inspection light, wherein the control unit switches the operation of the laser irradiation unit to the inspection mode after the welding mode, irradiates the welded portion with the laser beam again as the inspection light from the laser irradiation unit, and detects a hole generated after welding based on a change in emission intensity of visible light emitted from the welded portion by irradiation of the inspection light based on a detection signal of the visible light sensor.
The welding gun 711 is also provided with a high-speed camera and a processor; the processor comprises an image preprocessing module, an edge feature extraction module and an edge feature enhancement module; the image preprocessing module is used for denoising the welding line gray level image generated at the welding part; the edge feature extraction module is used for carrying out edge detection on the welding seam image; the edge feature enhancement module is used for detecting an image on an edge and improving the continuity of the edge; the photo is processed through the modules, and people can conveniently judge the welding quality through welding seams.
In embodiment 3, the welding device 7 in embodiment 3 further includes a control cabinet for controlling the operation state of the welding torch 711; the control cabinet is also provided with a frequency adjusting module, a time counting module and a laser brightness identification module, wherein the frequency adjusting module is used for controlling the laser frequency of the welding gun 711 and is provided with a plurality of stages of power gears; the time counting module is used for counting the contact time of the laser and the workpiece 5, and the laser brightness identification module is used for identifying the bright light generated in the welding process and detecting the welding quality through the bright light; wherein, the multistage power gears can be 1000-1200W, 1200-1400W and 1400-1600W; in order to ensure the welding quality, the welding gun 711 firstly welds by using a first-level gear 1400-1600W, the welding gun 711 is changed into 1200-1400W when running to the middle part of the workpiece 5, and the welding gun 711 is changed into 1000-1200W when running to the second half part of the workpiece 5, so that the uniform thickness of the welding seam is ensured through frequency conversion adjustment.
Although the invention has been described above with reference to various embodiments, it should be understood that many changes and modifications may be made without departing from the scope of the invention. That is, the methods, systems, and devices discussed above are examples. Various configurations may omit, substitute, or add various procedures or components as appropriate. For example, in alternative configurations, the methods may be performed in an order different than that described, and/or various components may be added, omitted, and/or combined. Moreover, features described with respect to certain configurations may be combined in various other configurations, as different aspects and elements of the configurations may be combined in a similar manner. Further, elements therein may be updated as technology evolves, i.e., many elements are examples and do not limit the scope of the disclosure or claims.
Specific details are given in the description to provide a thorough understanding of the exemplary configurations including implementations. However, configurations may be practiced without these specific details, for example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail in order to avoid obscuring the configurations. This description provides example configurations only, and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes may be made in the function and arrangement of elements without departing from the spirit or scope of the disclosure.
It is intended that the foregoing detailed description be regarded as illustrative rather than limiting, and that it be understood that it is the following claims, including all equivalents, that are intended to define the spirit and scope of this invention. The above examples are to be construed as merely illustrative and not limitative of the remainder of the disclosure. After reading the description of the invention, the skilled person can make various changes or modifications to the invention, and these equivalent changes and modifications also fall into the scope of the invention defined by the claims.
Claims (10)
1. A laser straight seam welding machine is characterized by comprising a workbench; the workbench is provided with a first welding assembly and a second welding assembly which has the same structure as the first welding assembly; the first welding assembly and the second welding assembly are arranged side by side; a supporting seat for supporting a workpiece is arranged between the first welding assembly and the second welding assembly, and the supporting seat is connected with the workbench in a sliding manner; the first welding assembly comprises a welding device, an inner abutting device used for abutting against the inner side of the workpiece, an outer abutting device used for abutting against the outer side of the workpiece and a bottom plate capable of sliding relative to the workbench; the welding device, the inner abutting device and the outer abutting device are all positioned on the bottom plate; the inner abutting part of the inner abutting device is positioned on the inner side of the workpiece; the external abutting part of the external abutting device is positioned outside the workpiece; a limiting space for limiting the position of the right-angle welding position of the workpiece is formed between the inner abutting part of the inner abutting device and the outer abutting part of the outer abutting device in a matched manner; the welding device is located near the outer abutting device, and a welding part of the welding device faces a workpiece right-angle welding position.
2. The laser straight seam welding machine according to claim 1, wherein the welding device includes a welding torch body and an elevating device for driving the welding torch body to move up and down; the welding gun body comprises a welding gun and an adjusting seat connected with the moving end of the lifting device; a cavity with an opening at the top is arranged in the adjusting seat; the adjusting screw rod penetrates through the shell of the adjusting seat and extends into the cavity; the adjusting screw rod is in threaded connection with a connecting seat; the welding gun is arranged on the connecting seat.
3. The laser straight seam welding machine of claim 1, wherein the inner abutment device comprises a first mounting bracket, a first inner abutment block, a second inner abutment block, and an inner stop block; the first inner abutting block and the second inner abutting block are arranged vertically to each other; the first mounting rack is provided with a plurality of first sliding rails which are vertically arranged; the inner limiting block is connected to the first sliding rail in a sliding manner; a first driving device for driving the first inner abutting block to be far away from and close to the inner limiting block and a second driving device for driving the second inner abutting block to be far away from and close to the inner limiting block are arranged in the inner limiting block; and the first mounting frame is also provided with a third driving device for driving the inner limiting block to move along the first sliding rail.
4. The laser straight seam welder of claim 3, wherein the outer abutment device comprises a first outer abutment assembly and a second outer abutment assembly; the first outer abutting assembly comprises a second mounting frame, a first outer abutting block and a fifth driving device for driving the first outer abutting block to move away from and close to the workpiece; the second outer abutting assembly comprises a third mounting frame, a second outer abutting block and a fourth driving device for driving the second outer abutting block to move away from and close to the workpiece; the first outer abutting block and the second outer abutting block are vertically arranged.
5. The laser straight seam welding machine according to claim 4, wherein a second slide rail and a sixth driving device are arranged on the second mounting frame; the second slide rail is connected with a first mounting seat in a sliding manner, and the first mounting seat is connected with the output end of the sixth driving device; a third sliding rail is arranged on the first mounting seat; the first outer abutting block is connected to the third slide rail in a sliding manner; the fifth driving device is installed on the first installation seat, and an output end of the fifth driving device is connected with the first outer abutting block.
6. The laser straight seam welding machine according to claim 5, wherein a fourth slide rail and an eighth driving device are arranged on the third mounting frame; a second mounting seat is connected to the fourth slide rail in a sliding manner, and the second mounting seat is connected with the output end of the eighth driving device; a fifth slide rail is arranged on the second mounting seat; the second outer abutting block is connected to the fifth sliding rail in a sliding mode; the fourth driving device is installed on the second mounting seat, and an output end of the fourth driving device is connected with the second outer abutting block.
7. The laser straight seam welding machine of claim 6, wherein the first inner abutment block is parallel to the first outer abutment block; the second inner abutment block is parallel to the second outer abutment block; the second slide rail and the fourth slide rail are vertically arranged.
8. The laser straight seam welding machine of claim 7, wherein an end of the first outer abutment block facing the workpiece is provided with a first insert block; a second insert block is arranged at one end part of the second outer abutting block facing the workpiece; the joint of the first insert block and the second insert block is provided with a tooth part respectively; the tooth parts of the first insert block and the tooth parts of the second insert block are arranged in a staggered fit mode, and right-angle positions used for correcting the position of a workpiece are formed in a matched mode.
9. The laser straight seam welding machine according to claim 1, wherein a plurality of sixth slide rails are arranged on the workbench along the length direction thereof; and the first welding assembly, the second welding assembly and the supporting seat are respectively in sliding connection with the sixth sliding rail.
10. The laser straight seam welding machine according to claim 1, wherein a third mounting seat is provided on the support seat; a seventh driving device is arranged on the third mounting seat; the seventh driving device is positioned above the workpiece, and the moving end of the seventh driving device faces the workpiece; and a pressing block for pressing the workpiece is arranged on the moving end of the seventh driving device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010264737.XA CN111390389A (en) | 2020-04-07 | 2020-04-07 | Laser straight seam welding machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010264737.XA CN111390389A (en) | 2020-04-07 | 2020-04-07 | Laser straight seam welding machine |
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| CN111390389A true CN111390389A (en) | 2020-07-10 |
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Application publication date: 20200710 |