CN116810153A - Self-cleaning laser welding system for automobile door ring welding slag - Google Patents
Self-cleaning laser welding system for automobile door ring welding slag Download PDFInfo
- Publication number
- CN116810153A CN116810153A CN202311061602.3A CN202311061602A CN116810153A CN 116810153 A CN116810153 A CN 116810153A CN 202311061602 A CN202311061602 A CN 202311061602A CN 116810153 A CN116810153 A CN 116810153A
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- plate
- welding
- door ring
- locking
- column
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- 238000003466 welding Methods 0.000 title claims abstract description 211
- 239000002893 slag Substances 0.000 title claims abstract description 86
- 238000004140 cleaning Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 95
- 230000003014 reinforcing effect Effects 0.000 claims description 64
- 241000251133 Sphyrna tiburo Species 0.000 claims description 21
- 230000008093 supporting effect Effects 0.000 claims description 20
- 238000003860 storage Methods 0.000 claims description 18
- 238000012546 transfer Methods 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 17
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 11
- 239000003546 flue gas Substances 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 11
- 238000001179 sorption measurement Methods 0.000 claims description 11
- 230000017105 transposition Effects 0.000 claims description 11
- 230000003647 oxidation Effects 0.000 claims description 5
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- 238000013459 approach Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007664 blowing Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 13
- 230000002787 reinforcement Effects 0.000 description 7
- 239000000779 smoke Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
- B23K26/142—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor for the removal of by-products
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention provides a self-cleaning laser welding system for automobile door ring welding slag, which comprises a welding base, wherein a longitudinal sliding rail is arranged in the middle of the surface of the welding base, and a transverse sliding rail is arranged at one end of the surface of the welding base; the surface of the welding base is oppositely provided with a first door ring clamping assembly and a second door ring clamping assembly; a welding robot is slidably arranged at the longitudinal sliding rail and is arranged between the first door ring clamping assembly and the second door ring clamping assembly; the first door ring clamping assembly is used for clamping the door ring main body so as to enable the welding robot to weld one side face of the door ring main body; the second door ring clamping assembly is used for clamping the door ring main body so as to enable the welding robot to weld the other side face of the door ring main body. In the invention, the first locking plate can discharge high-pressure gas to blow away the welding slag in the welding slag cleaning process, so that the automatic blowing of the welding slag is realized; the slag at each welding seam can be automatically shoveled by the slag shoveling assembly.
Description
Technical Field
The invention relates to the technical field of automobile door ring welding, in particular to an automobile door ring welding slag self-cleaning type laser welding system.
Background
The automobile door ring is an important part of an automobile and mainly comprises an A column upper reinforcing plate, a B column reinforcing plate, a threshold reinforcing plate and an A column lower reinforcing plate; as the automobile develops towards light weight, the automobile door ring adopts a mode of splicing and welding a plurality of plates, so that each part can select plates with corresponding thickness according to the strength requirement, thereby achieving the light weight requirement;
when the automobile door ring splice welding is carried out, welding slag often appears at a welding seam, after the welding is finished, a worker needs to independently use a shovel blade to clean the welding slag, the manual cleaning mode is long in cleaning time, the production efficiency of the automobile door ring is affected, meanwhile, the force applied by the worker for shoveling cannot be guaranteed to be uniform, and the shovel blade is easy to influence the regularity of the welding seam during shoveling;
therefore, there is a need for an automotive door ring welding apparatus that prevents and self-cleans welding slag.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a self-cleaning laser welding system for automobile door ring welding slag, which solves the problems in the background art.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
the self-cleaning laser welding system for the automobile door ring welding slag comprises a welding base, wherein a longitudinal sliding rail is arranged in the middle of the surface of the welding base, and a transverse sliding rail is arranged at one end of the surface of the welding base; the surface of the welding base is oppositely provided with a first door ring clamping assembly and a second door ring clamping assembly; a welding robot is slidably arranged at the longitudinal sliding rail and is arranged between the first door ring clamping assembly and the second door ring clamping assembly; the first door ring clamping assembly is used for clamping the door ring main body so as to enable the welding robot to weld one side face of the door ring main body; the second door ring clamping assembly is used for clamping the door ring main body so as to enable the welding robot to weld the other side face of the door ring main body;
The first door ring clamping assembly comprises a first main side plate and a first clamping plate; the first main side plate is vertically arranged at the side edge of the surface of the welding base, one end of the inner wall of the first main side plate is provided with a containing groove, the first clamping plate is embedded in the containing groove, and the first clamping plate is slidably arranged on the transverse slide rail; a first locking component, a slag shoveling component and a first positioning column are arranged on the inner wall of the first clamping plate; the first locking assembly comprises a first locking plate, the side wall of the first locking plate is provided with an exhaust hole, and the first locking plate is communicated with the air source assembly; each joint of the door ring main body is correspondingly provided with a group of first locking components and a group of slag shoveling components;
the welding system comprises a first state, a second state and a third state;
in a first state, the door ring main body is arranged on the first clamping plate through the first locking component and the first positioning column;
in a second state, the welding robot welds all joints on one side surface of the door ring main body, and the first locking plate discharges protective gas to the joints of the door ring main body;
in a third state, the welding robot exits, the slag shoveling assembly shovels off welding slag at the welding seam of the door ring main body, and the first locking plate discharges high-pressure gas to blow off the welding slag.
Further, the door ring main body comprises an A column upper reinforcing plate, a B column reinforcing plate, a threshold reinforcing plate and an A column lower reinforcing plate; the inner end of the upper reinforcing plate of the A column is connected with the lower reinforcing plate of the A column, the bottom end of the lower reinforcing plate of the A column is connected with the threshold reinforcing plate, and the lower reinforcing plate of the A column is connected with the threshold reinforcing plate; the two ends of the reinforcing plate on the A column are provided with locking holes which are vertically distributed near the welding edge, the bottom of the reinforcing plate on the B column is provided with locking holes which are vertically distributed near the welding edge, the top of the reinforcing plate on the B column is provided with circular positioning holes near the welding edge, the threshold reinforcing plate is provided with positioning holes near the reinforcing plate on the B column, and the reinforcing plate under the A column is provided with locking holes which are transversely distributed near the reinforcing plate on the A column; the first locking assembly and the locking hole are distributed oppositely, and the first positioning column and the positioning hole are distributed oppositely.
Further, the locking hole comprises a rectangular hole, and semicircular grooves are symmetrically formed in the inner wall of the middle of the rectangular hole.
Further, the first locking component further comprises a first electric rod, a second motor and a first guide post; the first clamping plate is internally provided with a storage tank and a switching tank which are connected into a whole; the outer end of the transfer groove is of an opening structure, the transfer groove is annular, and the width of the transfer groove is twice that of the first locking plate; the first electric rod is arranged in the storage tank, the output end of the first electric rod is provided with a second motor, the output end of the second motor is provided with a first guide column, the outer end of the first guide column is provided with a first locking plate, the first locking plate is of a cuboid structure, the thickness of the first locking plate is identical to the width of the rectangular hole, the length of the first locking plate is identical to the length of the rectangular hole, and the radius of the first guide column is identical to the radius of the semicircular groove; the first guide post is matched with and rotates to extend into the two semicircular grooves, and the first locking plate is matched with and penetrates through the rectangular hole.
Further, the slag shoveling assembly comprises a main base, an adjusting column, a third electric rod and a shovel head; the main base is embedded in the first clamping plate, the outer side of the main base is coaxially and rotatably connected with an adjusting column, the side wall of the adjusting column is provided with a third electric rod, the outer end of the third electric rod is provided with a shovel head, and the shovel head is oppositely arranged with a welding seam of the door ring main body; the side section of shovel head is right trapezoid structure, and the recess has been seted up to the medial surface of shovel head, and the internally mounted of recess has the second spring, and the inside slip embedding of recess has vice shovel piece, and the surface of vice shovel piece is cambered surface structure, and the outer end of vice shovel piece is inclined plane structure.
Further, the second door ring clamping assembly comprises a second main side plate, a second clamping plate and a second positioning column; the second main side plate is vertically arranged on the other side edge of the surface of the welding base, one end of the inner wall of the second main side plate is fixed with a second clamping plate, a second locking assembly and a first spring are embedded in the second clamping plate, the second locking assembly and the locking hole are oppositely arranged, a second positioning column is arranged at the outer end of the first spring, and the second positioning column and the positioning hole are oppositely arranged; the second locking assembly comprises a second electric rod, a third motor, a second guide post and a second locking plate; the output end of the second electric rod is provided with a third motor, the output end of the third motor is connected with a second guide post, and the outer end of the second guide post is provided with a second locking plate.
Further, the welding system further comprises a fourth state, and the specific working process in the fourth state is as follows:
the first locking plate is rotationally adjusted to be in a vertical state and is accommodated in the rectangular hole of the door ring main body, and the second locking plate is rotationally adjusted to be in a vertical state;
the first clamping plate moves along the transverse sliding rail, so that the door ring main body subjected to splice welding in the third state gradually approaches to the second clamping plate;
after the first locking plate is in conflict with the second locking plate, the first electric rod drives the first locking plate to move inwards, the second electric rod drives the second locking plate to move outwards until the first locking plate and the second locking plate are both arranged in the transfer groove, and the second guide post is inserted into the two semicircular grooves; at the same time, the first positioning column props against the second positioning column to retract and compress the first spring;
the third motor drives the second locking plate to rotate, and the second locking plate and the locking holes are distributed in a cross manner;
the first clamping plate resets along the transverse sliding rail, the first positioning column leaves the positioning hole, meanwhile, the second positioning column resets and is inserted into the positioning hole, the second locking plate externally shields the door ring main body, the door ring main body is left on the second clamping plate, the other side face of the door ring main body faces the welding robot, and the automatic transposition action of the door ring main body is completed.
Further, the inner wall of the accommodating groove is vertically provided with a surrounding baffle, a penetrating groove for the surrounding baffle to slide and penetrate is formed in the first clamping plate, the outer wall of the first clamping plate is slidably provided with a U-shaped sealing cover, the opening of the sealing cover is horizontally arranged towards one side, the surrounding baffle is used for plugging the side opening of the sealing cover, the outer wall of the sealing cover is provided with a flexible sealing door, and the top surface of the sealing cover is communicated with a flue gas adsorption pipe; a central hole for a welding gun of the welding robot to penetrate is formed in the flexible sealing door;
in the second state, the flexible sealing door, the sealing cover and the surrounding baffle together form a sealing cavity outside the door ring main body, and the protection gas exhausted by the first locking plate is filled in the sealing cavity so as to fully prevent oxidation of the welding area; the flue gas generated during welding is led out through a flue gas adsorption pipe;
in a third state, the flexible sealing door, the sealing cover and the surrounding baffle together form a sealing cavity outside the door ring main body, and the cleaned welding slag is gathered on the inner bottom surface of the sealing cover;
in the first state and the fourth state, the sealing cover and the flexible sealing door are slidingly received in the receiving area at the other end of the inner wall of the first main side plate, and then the accumulated welding slag is automatically discharged.
Further, the sealing cover comprises an upper baffle plate, a first side baffle plate and a lower baffle plate, a flue gas adsorption pipe is communicated with the center of the surface of the upper baffle plate, an outer joint block is arranged at one end of the surface of the upper baffle plate, the outer joint block extends towards the direction of the first main side plate, a screw rod is mounted on the surface of the first main side plate, a first motor is arranged at the end part of the screw rod, and screw threads penetrate through the outer joint block; the top end of the first side baffle is vertically connected with the upper baffle, and the bottom end of the first side baffle is connected with the lower baffle; the first motor drives the screw rod to rotate so as to drive the sealing cover to be integrally arranged at the first clamping plate or in the storage area of the first main side plate.
Further, a receiving groove is arranged below the storage area of the first main side plate, the first side baffle is rotationally connected with the lower baffle, and a torsion spring is arranged at the rotational connection part and is used for driving the lower baffle to rotate downwards for resetting; the surrounding baffle comprises a second side baffle, a supporting plate and an inclined plate, the second side baffle and the first side baffle are oppositely arranged, the bottom end of the second side baffle is vertically provided with the supporting plate, the supporting plate is arranged at the bottom of the lower baffle in parallel, and the outer end of the supporting plate is provided with the inclined plate which inclines downwards; the sealing cover is arranged in the storage area, and the torsion spring drives the lower baffle to rotate downwards into the receiving groove, so that welding slag on the surface of the lower baffle automatically falls into the receiving groove; when the sealing cover is arranged on the first clamping plate, the supporting plate pushes the lower baffle plate, so that the lower baffle plate is in a horizontal enclosing state.
The invention provides a self-cleaning laser welding system for automobile door ring welding slag. Compared with the prior art, the method has the following beneficial effects:
1. the first locking plate can achieve the following three effects: 1.1, in the preparation stage of clamping the automobile door ring, locking and positioning all parts of the automobile door ring, so that the automobile door ring is firmly arranged on a first clamping plate; 1.2, because the first locking plates are uniformly distributed at the positions close to the joints to ensure the positioning strength, by means of the position design, the first locking plates are communicated with the air source assembly, and the exhaust holes are formed at the positions of the first locking plates, so that the first locking plates discharge protective gas during welding, the welding area is directly protected, welding slag is prevented from being formed by premature oxidation of molten metal, and the generation of the welding slag is further reduced from the source; 1.3, in the welding slag cleaning process, the first locking plate can discharge high-pressure gas to blow away the welding slag, so that automatic purging of the welding slag is realized.
2. The first positioning column can be matched with the first locking assembly to support and position, so that the cost is reduced, and the structure of the first clamping plate is simplified.
3. The slag shoveling assembly can automatically shoveling the welding slag at each welding seam;
4. the first door ring clamping assembly and the second door ring clamping assembly are utilized to clamp the two side surfaces of the door ring main body respectively, and then the welding robot is utilized to realize laser splice welding of the two sides of the automobile door ring, so that the structure is compact and the welding efficiency is high.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows a schematic diagram of a self-cleaning laser welding system for automobile door ring welding slag;
FIG. 2 shows a schematic top view of the weld base of the present invention;
FIG. 3 shows an enlarged schematic view of the structure at A of FIG. 1;
FIG. 4 shows a schematic view of a first locking assembly of the present invention;
FIG. 5 is a schematic view showing a locked state of the first locking plate of the present invention;
FIG. 6 is a schematic view showing an unlocked state of the first locking plate of the present invention;
FIG. 7 shows a schematic structural view of the door ring body of the present invention at a first door ring clamping assembly;
FIG. 8 shows a schematic view of the sealing structure of the exterior of the first clamping plate of the present invention;
FIG. 9 shows a schematic view of the flexible sealing door structure of the present invention;
FIG. 10 is a schematic view showing a preliminary bonding structure in an automatic transposition state according to the present invention;
FIG. 11 is a schematic view showing a rotation structure of the second locking plate in an automatic index state according to the present invention;
FIG. 12 is a schematic view showing the transfer of the door ring body to a second chuck structure in an automatic index state according to the present invention;
FIG. 13 is a schematic view showing a slag cleaning state structure of the present invention;
FIG. 14 shows a schematic view of the slag assembly of the present invention;
FIG. 15 shows a schematic view of the structure of the shovel head of the present invention;
FIG. 16 shows a schematic view of the structure of the sub-shovel of the present invention;
the figure shows: 1. welding a base; 11. a transverse slide rail; 12. a longitudinal slide rail; 2. a welding robot; 21. a welding gun; 211. a second magnetic plate; 3. the first door ring clamping assembly; 31. a first main side plate; 311. a receiving groove; 312. a storage area; 313. a receiving groove; 32. a first clamping plate; 321. a storage tank; 322. a transfer groove; 323. penetrating a groove; 33. a sealing cover; 331. an upper baffle; 3311. an outer joint block; 332. a first side baffle; 333. a lower baffle; 334. a flexible seal door; 3341. an outer frame body; 3342. a first flexible sealing plate; 3343. an inner frame body; 3344. a second flexible sealing plate; 3345. a center plate; 3346. a first magnetic plate; 34. an air source assembly; 35. a surrounding baffle; 351. a second side baffle; 352. a supporting plate; 353. a sloping plate; 36. a screw; 361. a first motor; 37. a first positioning column; 4. a second door ring clamping assembly; 41. a second main side plate; 42. a second clamping plate; 43. a second positioning column; 431. a first spring; 5. a door ring main body; 51. a reinforcing plate on the A column; 52. a B column reinforcing plate; 53. a threshold reinforcing plate; 54. a column A lower reinforcing plate; 55. a locking hole; 551. a rectangular hole; 552. a semicircular groove; 56. positioning holes; 6. a first locking assembly; 61. a first electric lever; 62. a second motor; 63. a first guide post; 64. a first locking plate; 7. a second locking assembly; 71. a second electric lever; 72. a third motor; 73. a second guide post; 74. a second locking plate; 8. a slag shoveling assembly; 81. a main base; 82. an adjusting column; 83. a third electric lever; 84. a shovel head; 841. a groove; 8411. a second spring; 85. a secondary shovel block; 9. flue gas adsorption tube.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are 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.
Example 1
In order to solve the technical problems in the background technology, the following self-cleaning laser welding system for the automobile door ring welding slag is provided:
referring to fig. 1-16, the self-cleaning laser welding system for the automobile door ring welding slag provided by the invention comprises a welding base 1, wherein a longitudinal sliding rail 12 is arranged in the middle of the surface of the welding base 1, and a transverse sliding rail 11 is arranged at one end of the surface; the surface of the welding base 1 is oppositely provided with a first door ring clamping assembly 3 and a second door ring clamping assembly 4; a welding robot 2 is slidably arranged at the longitudinal slide rail 12, and the welding robot 2 is arranged between the first door ring clamping assembly 3 and the second door ring clamping assembly 4; the first door ring clamping assembly 3 is used for clamping the door ring main body 5 so that the welding robot 2 can weld one side surface of the door ring main body 5; the second door ring clamping assembly 4 is used for clamping the door ring main body 5 so that the welding robot 2 can weld the other side surface of the door ring main body 5;
The first door ring clamping assembly 3 comprises a first main side plate 31 and a first clamping plate 32; the first main side plate 31 is vertically arranged at the side edge of the surface of the welding base, one end of the inner wall of the first main side plate 31 is provided with a containing groove 311, the first clamping plate 32 is embedded in the containing groove 311, and the first clamping plate 32 is slidably arranged on the transverse slide rail 11; the inner wall of the first clamping plate 32 is provided with a first locking component 6, a slag shoveling component 8 and a first positioning column 37; the first locking assembly 6 comprises a first locking plate 64, the side wall of the first locking plate 64 is provided with an exhaust hole, and the first locking plate 64 is communicated with the air source assembly 34;
the welding system comprises a first state, a second state and a third state; in the first state, the door ring main body 5 is mounted on the first clamping plate 32 through the first locking component 6 and the first positioning column 37, and a group of first locking components 6 and a group of slag shoveling components 8 are arranged at each welding seam of the door ring main body 5; in the second state, the welding robot 2 welds each joint on one side surface of the door ring main body 5, and the first locking plate 64 discharges the protective gas to the joint of the door ring main body 5; in the third state, the welding robot 2 is withdrawn, the slag shoveling assembly 8 shovels the slag at the welding seam of the door ring body 5, and the first locking plate 64 discharges high-pressure gas to blow away the slag.
Through the scheme, the following effects can be achieved:
1. the first locking plate 64 can achieve the following three effects: 1.1, in the preparation stage of clamping the automobile door ring, locking and positioning all parts of the automobile door ring, so that the automobile door ring is firmly placed on the first clamping plate 32; 1.2, because the first locking plates 64 are uniformly distributed near the joint to ensure the positioning strength, by virtue of the position design, the first locking plates 64 are communicated with the air source assembly 34, and the exhaust holes are formed at the first locking plates 64, so that the first locking plates 64 discharge protective gas during welding, the welding area is directly protected, the welding slag is prevented from being formed by early oxidation of molten metal, and the generation of the welding slag is further reduced from the source; 1.3, in the slag cleaning process, the first locking plate 64 can discharge high-pressure gas to blow away the slag, so that automatic purging of the slag is realized.
2. The first positioning column 37 can be matched with the first locking assembly 6 to support and position, so that the cost is reduced, and the structure of the first clamping plate 32 is simplified.
3. The slag at each weld can be automatically shoveled by the slag shoveling assembly 8.
4. The two side surfaces of the door ring main body 5 can be clamped by the first door ring clamping assembly 3 and the second door ring clamping assembly 4 respectively, and laser splice welding of two sides of the automobile door ring is realized by the welding robot 2, so that the structure is compact and the welding efficiency is high.
The air supply assembly 34 includes a nitrogen source, an air compressor, and a regulator valve connected in parallel to each locking plate via a conduit.
In order to enable the first locking assembly 6 to achieve the above effect, the door ring of the automobile and the structure of the first locking assembly 6 need to be designed, and the exemplary scheme is as follows:
in the present embodiment, the door ring main body 5 includes an a-pillar upper reinforcement plate 51, a B-pillar reinforcement plate 52, a rocker reinforcement plate 53, an a-pillar lower reinforcement plate 54; the inner end of the A column upper reinforcing plate 51 is connected with the B column reinforcing plate 52, the outer end of the A column upper reinforcing plate 51 is connected with the A column lower reinforcing plate 54, the bottom end of the B column reinforcing plate 52 is connected with the threshold reinforcing plate 53, and the A column lower reinforcing plate 54 is connected with the threshold reinforcing plate 53; the two ends of the A column upper reinforcing plate 51 close to the welding edge are provided with vertically distributed locking holes 55, the bottom of the B column reinforcing plate 52 close to the welding edge is provided with vertically distributed locking holes 55, the top of the B column reinforcing plate 52 close to the welding edge is provided with a circular positioning hole 56, the position of the threshold reinforcing plate 53 close to the B column reinforcing plate 52 is provided with a positioning hole 56, the position close to the A column lower reinforcing plate 54 is provided with transversely distributed locking holes 55, and the two ends of the A column lower reinforcing plate 54 are provided with positioning holes 56; the first locking assembly 6 is disposed opposite the locking hole 55, and the first positioning post 37 is disposed opposite the positioning hole 56.
In this embodiment, the locking hole 55 includes a rectangular hole 551, and a semicircular groove 552 is symmetrically formed in the inner wall of the middle portion of the rectangular hole 551.
The design of the door ring main body 5 and the locking hole 55 has the following technical effects:
1. the automobile door ring is designed into four parts, positioning holes 56 or locking holes 55 are distributed at the positions, close to joints, of each part, and the positioning holes are matched with the first positioning columns 37 or the first locking assemblies 6, so that the positioning of each part can be realized, and the stability in welding is ensured;
2. because the locking hole 55 adopts a structure with a round center and a rectangular outside, the outward extending rotation of the first locking plate 64 can be ensured to be locked in a crisscross manner, and the locking hole can be retracted through the rectangular hole 551 when unlocked, so that quick locking and unlocking can be realized; the design of the round hole can be matched with the guide post, so that after the locking plate extends out of the rectangular hole 551, the guide post is arranged in the round hole, and the stable supporting effect is ensured;
3. because the upper reinforcing plate 51 of the A column is positioned at the uppermost part, the joints of the upper reinforcing plate 51 of the A column and the lower reinforcing plate 54 of the B column are approximately horizontal, two connecting points of the upper reinforcing plate 51 of the A column are provided with vertically distributed locking holes 55, and the bottom of the reinforcing plate 52 of the B column and the welding seam of the reinforcing plate 53 of the threshold are approximately horizontal, so that the bottom of the reinforcing plate 52 of the B column is provided with vertically distributed locking holes 55; thus, when the first locking plate 64 is locked, the first locking plate 64 can be in a horizontal state by crossing the vertically distributed locking holes 55, and the first locking plate 64 can be arranged above the corresponding welding seam in parallel to form a sweeping airflow from top to bottom so as to achieve the optimal sweeping effect;
4. The seam between the threshold reinforcement plate 53 and the lower a-pillar reinforcement plate 54 is nearly vertical, so that the locking holes 55 of the threshold reinforcement plate 53 at the position are transversely distributed, and thus when the first locking plates 64 are crossed, the first locking plates can be in a vertical state and can be parallel to the seam corresponding to the position;
5. the relative position of each locking hole 55 is a positioning hole 56, so that the relative interference of the two groups of first locking components 6 can be avoided, the cost is reduced, and the supporting effect is ensured.
In order to adapt the first locking assembly 6 to the locking requirements of the locking hole 55, the following is given:
in this embodiment, the first locking assembly 6 further includes a first electric rod 61, a second motor 62, and a first guide post 63; the first clamping plate 32 is internally provided with a storage groove 321 and a switching groove 322, and the storage groove 321 and the switching groove 322 are connected into a whole; the outer end of the transfer groove 322 is of an opening structure, the transfer groove 322 is annular, and the width of the transfer groove 322 is twice that of the first locking plate 64; the first electric rod 61 is arranged in the storage tank 321, the output end of the first electric rod is provided with a second motor 62, the output end of the second motor 62 is provided with a first guide post 63, the outer end of the first guide post 63 is provided with a first locking plate 64, the first locking plate 64 is of a cuboid structure, the thickness of the first locking plate 64 is the same as the width of the rectangular hole 551, the length of the first locking plate 64 is the same as the length of the rectangular hole 551, and the radius of the first guide post 63 is the same as the radius of the semicircular groove 552; the first guide post 63 is matched to rotate and extend into the two semicircular grooves 552, and the first locking plate 64 is matched to penetrate through the rectangular hole 551.
The first locking assembly 6 has the following technical effects:
1. the first electric rod 61 can drive the first locking plate 64 and the first guide post 63 to do telescopic movement, and the second motor 62 can drive the first locking plate 64 to rotate, so that the locking and unlocking requirements are met;
2. the width of the transfer groove 322 is twice the width of the locking plate, so that when the transposition action is carried out, the second locking plate 74 can pass through the rectangular hole 551, the first locking plate 64 and the second locking plate 74 can be simultaneously stored in parallel in the single transfer groove 322, meanwhile, as the transfer groove 322 is in a circular ring shape, a space is reserved for the rotation of the second locking plate 74, the door ring main body 5 can be stopped from the outer side by rotating the second locking plate 74, and the automatic stopping locking of the door ring main body 5 is realized;
3. the locking plate is designed into a cuboid and can be matched with the rectangular hole 551 so as to penetrate locking and unlocking;
4. the first guide post 63 is cylindrical, and its shape is designed to match with the semicircular groove 552, so that support positioning can be achieved.
In order to enable the slag shoveling assembly 8 to achieve the automatic slag shoveling effect, the following scheme is given:
as shown in fig. 14-16, in the present embodiment, the shovel assembly 8 includes a main base 81, an adjusting column 82, a third electric pole 83, and a shovel head 84; the main base 81 is embedded in the first clamping plate 32, the outer side of the main base 81 is coaxially and rotatably connected with an adjusting column 82, the side wall of the adjusting column 82 is provided with a third electric rod 83, the outer end of the third electric rod 83 is provided with a shovel head 84, and the shovel head 84 is arranged opposite to the welding seam of the door ring main body 5; the side section of the shovel head 84 is of a right trapezoid structure, a groove 841 is formed in the inner side surface of the shovel head 84, a second spring 8411 is mounted in the groove 841, an auxiliary shovel block 85 is embedded in the groove 841 in a sliding mode, the outer surface of the auxiliary shovel block 85 is of an arc surface structure, and the outer end of the auxiliary shovel block 85 is of an inclined surface structure.
The slag shoveling assembly 8 has the following technical effects:
1. the adjusting column 82 can rotate around the main base 81, scales are arranged on the main base 81, and the angle of the third electric rod 83 can be adjusted according to the position of the welding line, so that the shovel head 84 is aligned with the welding line, and the application range of the shovel slag assembly 8 is improved;
2. the third electric rod 83 drives the shovel head 84 to stretch out and draw back, namely the shovel head 84 is driven to reciprocate at the joint of the door ring main body 5, so that welding slag is cleaned;
3. because the welding seam is inwards sunken, but the sunken degrees are different, the slag shoveling effect is improved in order to further improve the application range of the slag shoveling assembly 8; the auxiliary shovel block 85 capable of elastically moving is designed, so that when the shovel head 84 is attached to the door ring main body 5 to move, the auxiliary shovel block 85 with the cambered surface can be adapted to enter the welding groove, welding slag in the welding groove can be rapidly shoveled out, and welding seams with different concave depths are adapted.
Example two
As shown in fig. 10 to 12, on the basis of the above embodiment, the present embodiment further gives the following:
when welding the welding seam of the door ring main body 5, double-sided welding is needed, the traditional transposition mode is manual operation, the door ring main body 5 with one side welded is needed to be unlocked with the first door ring clamping assembly 3, and the door ring main body 5 is locked and installed on the second door ring clamping assembly 4; the transposition mode has lower efficiency; to solve the above problems, the following scheme is exemplarily given:
In this embodiment, the second door ring clamping assembly 4 includes a second main side plate 41, a second clamping plate 42, and a second positioning post 43; the second main side plate 41 is vertically arranged at the other side edge of the surface of the welding base 1, one end of the inner wall of the second main side plate 41 is fixed with a second clamping plate 42, a second locking component 7 and a first spring 431 are embedded in the second clamping plate 42, the second locking component 7 is oppositely arranged with the locking hole 55, a second positioning column 43 is arranged at the outer end of the first spring 431, and the second positioning column 43 is oppositely arranged with the positioning hole 56; the second locking assembly 7 includes a second electric lever 71, a third motor 72, a second guide post 73, and a second locking plate 74; the output end of the second electric rod 71 is provided with a third motor 72, the output end of the third motor 72 is connected with a second guide post 73, and the outer end of the second guide post 73 is provided with a second locking plate 74.
The first spring 431 is matched with the second positioning column 43 and inserted into the positioning hole 56 of the door ring main body 5 to realize supporting and positioning; the second electric rod 71 can drive the third motor 72 to do telescopic motion, and the third motor 72 can drive the second locking plate 74 to rotate, so that transposition switching is realized; the first electric rod 61 and the second electric rod 71 are identical in structure, and the second motor 62 and the third motor 72 are identical in structure; the first guide post 63 is identical in structure to the second guide post 73; the first locking plate 64 is identical in structure to the second locking plate 74.
In this embodiment, the welding system further includes a fourth state, and a specific working process in the fourth state is:
the first locking plate 64 is rotatably adjusted to be in a vertical state and is received in the rectangular hole 551 of the door ring main body 5, and the second locking plate 74 is rotatably adjusted to be in a vertical state;
the first clamping plate 32 moves along the transverse sliding rail 11, so that the door ring main body 5 subjected to splice welding in the third state gradually approaches the second clamping plate 42;
after the first locking plate 64 is abutted against the second locking plate 74, the first electric rod 61 drives the first locking plate 64 to move inwards, and the second electric rod 71 pushes the second locking plate 74 to move outwards until the first locking plate 64 and the second locking plate 74 are both arranged in the transfer groove 322, and the second guide post 73 is inserted into the two semicircular grooves 552; at the same time, the first positioning post 37 abuts against the second positioning post 43 to retract and compress the first spring 431;
the third motor 72 drives the second locking plate 74 to rotate, and the second locking plate 74 and the locking holes 55 are distributed in a cross manner;
the first clamping plate 32 resets along the transverse slide rail 11, the first positioning column 37 leaves the positioning hole 56, meanwhile, the second positioning column 43 resets and inserts into the positioning hole 56, the second locking plate 74 externally shields the door ring main body, the door ring main body is left on the second clamping plate 42, the other side surface of the door ring main body faces the welding robot 2, and the automatic transposition action of the door ring main body is completed.
Through the steps, after the door ring main body 5 at the first clamping plate 32 is welded, the first clamping plate 32 is close to the second clamping plate 42, so that the door ring main body 5 is attached to the second clamping plate 42, meanwhile, the first locking plate 64 is retracted, and the second locking plate 74 extends outwards, so that the door ring main body and the second clamping plate can synchronously pass through the rectangular hole 551, the first locking plate 64 and the second locking plate 74 can synchronously be retracted into the transfer groove 322, the second guide post 73 enters into the semicircular groove 552, and the door ring main body and the second locking plate do not interfere with each other;
the second positioning column 43 is propped against the outside of the first positioning column 37 to receive and compress the spring, so that the first positioning column 37 and the second positioning column 43 cannot interfere;
after the second locking plate 74 is rotated and locked, the first clamping plate 32 is withdrawn, the second positioning column 43 stretches into the positioning hole 56, the door ring main body 5 is blocked outside the second locking plate 74, so that automatic transposition of the door ring main body 5 is realized, the other surface of the door ring main body 5 faces the welding robot 2, and the welding robot 2 can run and weld; the problems of low replacement efficiency and low automation degree of the traditional manual transposition are effectively solved.
Example III
As shown in fig. 7 to 9, on the basis of the above embodiment, the present embodiment further provides the following:
In the conventional welding process, in order to facilitate automatic movement welding of the robot, the welding area is mostly an open structure, but the open structure can store the following problems in the invention: 1. the welding slag shoveled by the slag shoveling assembly 8 falls on the welding base 1, and the subsequent cleaning is troublesome; 2. the smoke generated during welding directly overflows in the air, and although negative pressure suction equipment is arranged, the absorption is incomplete, and the smoke still can be scattered to a processing area; 3. during welding, the protective gas exhausted by the first locking plate 64 and the second locking plate 74 can be dispersed to the air, so that a stable protective gas atmosphere cannot be formed; in order to solve the problems synchronously, a sealing structure during welding is designed, and the following scheme is specifically provided:
in this embodiment, the inner wall of the accommodating groove 311 is vertically provided with a baffle 35, a through groove 323 through which the baffle 35 slides is provided in the first clamping plate 32, the outer wall of the first clamping plate 32 is slidably provided with a U-shaped sealing cover 33, the opening of the sealing cover 33 is horizontally arranged towards one side, the baffle 35 is used for plugging the side opening of the sealing cover 33, the outer wall of the sealing cover 33 is provided with a flexible sealing door 334, and the top surface of the sealing cover 33 is communicated with the flue gas adsorption pipe 9; a central hole for the welding gun 21 of the welding robot 2 to penetrate is formed in the flexible sealing door 334;
In the second state, the flexible sealing door 334, the sealing cover 33 and the surrounding baffle 35 together form a sealing chamber outside the door ring main body 5, and the protective gas exhausted by the first locking plate 64 fills the sealing chamber to fully prevent oxidation of the welding area; the smoke generated during welding is led out through a smoke adsorption pipe 9;
in the third state, the flexible sealing door 334, the sealing cover 33 and the surrounding baffle 35 together form a sealing chamber outside the door ring main body 5, and the cleaned welding slag is gathered on the inner bottom surface of the sealing cover 33;
in the first and fourth states, the sealing cover 33 and the flexible sealing door 334 are slidably received in the other end receiving area 312 of the inner wall of the first main side plate 31, and the collected welding slag is automatically discharged.
In the above scheme, the sealing structure comprising the surrounding baffle 35, the sealing cover 33 and the flexible sealing door 334 is designed, so that the following effects can be achieved: 1. during welding, a sealed cavity is formed, and meanwhile, the welding gun 21 of the welding robot 2 can freely move through the flexible sealing door 334 without being influenced; 2. during welding, sprayed protective gas can be gathered in the sealing structure to form a stable protective gas atmosphere, so that the protective effect is improved, and smoke generated during welding can be led out through the smoke adsorption tube 9 and cannot be dispersed to the outside; 3. when the slag is removed, the fallen welding slag is gathered in the sealing cover 33, and can be automatically carried out later, so that the welding slag cannot fall on the welding base 1;
After the welding of the single side surface is finished, when the transposition action is required, the sealing structure is required to be removed so as to ensure that the door ring main body 5 is attached to the second clamping plate 42; to achieve this, the following design is given:
the surrounding board 35 cannot move because it interferes with the door ring main body 5 when moving, and cannot interfere with the operation of the first clamping plate 32, so in the above-mentioned scheme, the surrounding board 35 is designed on the first main side board 31, and the through groove 323 is formed in the first clamping plate 32;
for matching with the surrounding baffle 35, the sealing cover 33 is designed into a U shape, and the opening faces to the side, so that when sealing is needed, the sealing cover 33 can be attached to the surrounding baffle 35 to form a sealing structure; when the sealing is not needed, the sealing cover 33 can transversely move to the other end of the inner wall of the first main side plate 31, so that the storage is realized, and the action of the first clamping plate 32 is not influenced.
The same sealing structure is also arranged in the second door ring clamping assembly 4.
In order to make the sealing cover 33 achieve the above-mentioned effects of material receiving and sealing, the following scheme is given as an example:
in this embodiment, the seal cover 33 includes an upper baffle 331, a first side baffle 332, and a lower baffle 333, where the center of the surface of the upper baffle 331 is connected with the flue gas adsorption tube 9, one end of the surface of the upper baffle 331 is provided with an external connection block 3311, the external connection block 3311 extends toward the first main side plate 31, the surface of the first main side plate 31 is provided with a screw 36, the end of the screw 36 is provided with a first motor 361, and the screw 36 threads penetrate through the external connection block 3311; the top end of the first side baffle 332 is vertically connected with the upper baffle 331, and the bottom end is connected with the lower baffle 333; the first motor 361 drives the screw rod 36 to rotate so as to drive the sealing cover 33 to be integrally arranged at the first clamping plate 32 or arranged at the containing area 312 of the first main side plate 31.
The first motor 361 can drive the screw rod 36 to rotate, and then drive the external connection block 3311 to move, and the external connection block 3311 drives the seal cover 33 to move along the first main side plate 31, so that the seal cover 33 can move.
In this embodiment, a receiving slot 313 is disposed below the receiving area 312 of the first main side plate 31, the first side plate 332 is rotatably connected to the lower plate 333, and a torsion spring is mounted at the rotational connection position, and the torsion spring is used to drive the lower plate 333 to rotate downwards for resetting; the surrounding baffle 35 comprises a second side baffle 351, a supporting plate 352 and an inclined plate 353, the second side baffle 351 is arranged opposite to the first side baffle 332, the bottom end of the second side baffle 351 is vertically provided with the supporting plate 352, the supporting plate 352 is arranged at the bottom of the lower baffle 333 in parallel, and the outer end of the supporting plate 352 is provided with the inclined plate 353 which is inclined downwards; when the sealing cover 33 is placed in the storage area 312, the torsion spring drives the lower baffle 333 to rotate downwards into the receiving groove 313, so that welding slag on the surface of the lower baffle 333 automatically falls into the receiving groove 313; when the seal cover 33 is placed on the first clamping plate 32, the upper and lower baffles 333 of the supporting plate 352 are propped against each other, so that the lower baffles 333 are in a horizontal enclosing state.
The lower baffle 333 is designed in a torsion spring rotation connection mode, so that when in sealing, the lower baffle 333 is supported by the sloping plate 353 and the supporting plate 352, the lower baffle 333 keeps a lower sealing state, and welding slag falls on the lower baffle 333; when the sealing cover 33 leaves the storage area of the first main side plate 31, the lower baffle 333 is driven by the torsion spring to reset, the lower baffle 333 rotates into the receiving groove 313, and the welding slag can be automatically discharged into the receiving groove 313, so that automatic material guiding is realized.
To enable the flexible sealing door 334 to meet the need of the welding robot 2 to automatically move the weld while maintaining the sealing effect, the following scheme is given, by way of example:
in this embodiment, the flexible sealing door 334 includes an outer frame 3341 and an inner frame 3343; the outer frame 3341 is fixedly connected with the upper baffle 331 and the first side baffle 332, the outer frame is rotatably connected with the lower baffle 333, an inner frame 3343 with a long rectangular structure is transversely and slidably arranged in the outer frame 3341, first flexible sealing plates 3342 are connected to the left side and the right side of the inner frame 3343, a central plate 3345 is vertically and slidably arranged in the inner frame 3343, second flexible sealing plates 3344 are connected to the upper side and the lower side of the central plate 3345, a central hole is formed in the center of the central plate 3345, a first magnetic suction plate 3346 is arranged on the outer wall of the central plate 3345, and a second magnetic suction plate 211 matched with the first magnetic suction plate 3346 is arranged at the welding gun 21 of the welding robot 2.
When moving, the center plate 3345 can vertically move along the inner frame 3343 to meet the vertical movement requirement of the welding gun, the inner frame 3343 can transversely move along the outer frame 3341 to meet the transverse movement requirement of the welding gun, and the first flexible sealing plate 3342 and the second flexible sealing plate 3344 can ensure the sealing requirement; the flexible sealing plate is of a corrugated structure; the cooperation of the first magnetic plate 3346 and the second magnetic plate 211 can realize rapid assembly and separation of the welding gun and the center plate 3345.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. Automobile door ring welding slag self-cleaning formula laser welding system, its characterized in that: the welding device comprises a welding base, wherein a longitudinal sliding rail is arranged in the middle of the surface of the welding base, and a transverse sliding rail is arranged at one end of the surface of the welding base; the surface of the welding base is oppositely provided with a first door ring clamping assembly and a second door ring clamping assembly; a welding robot is slidably arranged at the longitudinal sliding rail and is arranged between the first door ring clamping assembly and the second door ring clamping assembly; the first door ring clamping assembly is used for clamping the door ring main body so as to enable the welding robot to weld one side face of the door ring main body; the second door ring clamping assembly is used for clamping the door ring main body so as to enable the welding robot to weld the other side face of the door ring main body;
the first door ring clamping assembly comprises a first main side plate and a first clamping plate; the first main side plate is vertically arranged at the side edge of the surface of the welding base, one end of the inner wall of the first main side plate is provided with a containing groove, the first clamping plate is embedded in the containing groove, and the first clamping plate is slidably arranged on the transverse slide rail; a first locking component, a slag shoveling component and a first positioning column are arranged on the inner wall of the first clamping plate; the first locking assembly comprises a first locking plate, the side wall of the first locking plate is provided with an exhaust hole, and the first locking plate is communicated with the air source assembly; each joint of the door ring main body is correspondingly provided with a group of first locking components and a group of slag shoveling components;
The welding system comprises a first state, a second state and a third state;
in a first state, the door ring main body is arranged on the first clamping plate through the first locking component and the first positioning column;
in a second state, the welding robot welds all joints on one side surface of the door ring main body, and the first locking plate discharges protective gas to the joints of the door ring main body;
in a third state, the welding robot exits, the slag shoveling assembly shovels off welding slag at the welding seam of the door ring main body, and the first locking plate discharges high-pressure gas to blow off the welding slag.
2. The automotive door ring welding slag self-cleaning laser welding system of claim 1, wherein: the door ring main body comprises an A column upper reinforcing plate, a B column reinforcing plate, a threshold reinforcing plate and an A column lower reinforcing plate; the inner end of the upper reinforcing plate of the A column is connected with the lower reinforcing plate of the A column, the bottom end of the lower reinforcing plate of the A column is connected with the threshold reinforcing plate, and the lower reinforcing plate of the A column is connected with the threshold reinforcing plate; the two ends of the reinforcing plate on the A column are provided with locking holes which are vertically distributed near the welding edge, the bottom of the reinforcing plate on the B column is provided with locking holes which are vertically distributed near the welding edge, the top of the reinforcing plate on the B column is provided with circular positioning holes near the welding edge, the threshold reinforcing plate is provided with positioning holes near the reinforcing plate on the B column, and the reinforcing plate under the A column is provided with locking holes which are transversely distributed near the reinforcing plate on the A column; the first locking assembly and the locking hole are distributed oppositely, and the first positioning column and the positioning hole are distributed oppositely.
3. The automotive door ring welding slag self-cleaning laser welding system of claim 2, wherein: the locking hole comprises a rectangular hole, and semicircular grooves are symmetrically formed in the inner wall of the middle of the rectangular hole.
4. The automotive door ring welding slag self-cleaning laser welding system of claim 3, wherein: the first locking assembly further comprises a first electric rod, a second motor and a first guide post; the first clamping plate is internally provided with a storage tank and a switching tank which are connected into a whole; the outer end of the transfer groove is of an opening structure, the transfer groove is annular, and the width of the transfer groove is twice that of the first locking plate;
the first electric rod is arranged in the storage tank, the output end of the first electric rod is provided with a second motor, the output end of the second motor is provided with a first guide column, the outer end of the first guide column is provided with a first locking plate, the first locking plate is of a cuboid structure, the thickness of the first locking plate is identical to the width of the rectangular hole, the length of the first locking plate is identical to the length of the rectangular hole, and the radius of the first guide column is identical to the radius of the semicircular groove; the first guide post is matched with and rotates to extend into the two semicircular grooves, and the first locking plate is matched with and penetrates through the rectangular hole.
5. The automotive door ring welding slag self-cleaning laser welding system of claim 1, wherein: the slag shoveling assembly comprises a main base, an adjusting column, a third electric rod and a shovel head; the main base is embedded in the first clamping plate, the outer side of the main base is coaxially and rotatably connected with an adjusting column, the side wall of the adjusting column is provided with a third electric rod, the outer end of the third electric rod is provided with a shovel head, and the shovel head is oppositely arranged with a welding seam of the door ring main body;
the side section of shovel head is right trapezoid structure, and the recess has been seted up to the medial surface of shovel head, and the internally mounted of recess has the second spring, and the inside slip embedding of recess has vice shovel piece, and the surface of vice shovel piece is cambered surface structure, and the outer end of vice shovel piece is inclined plane structure.
6. The automotive door ring welding slag self-cleaning laser welding system of claim 4, wherein: the second door ring clamping assembly comprises a second main side plate, a second clamping plate and a second positioning column; the second main side plate is vertically arranged on the other side edge of the surface of the welding base, one end of the inner wall of the second main side plate is fixed with a second clamping plate, a second locking assembly and a first spring are embedded in the second clamping plate, the second locking assembly and the locking hole are oppositely arranged, a second positioning column is arranged at the outer end of the first spring, and the second positioning column and the positioning hole are oppositely arranged;
The second locking assembly comprises a second electric rod, a third motor, a second guide post and a second locking plate; the output end of the second electric rod is provided with a third motor, the output end of the third motor is connected with a second guide post, and the outer end of the second guide post is provided with a second locking plate.
7. The automotive door ring welding slag self-cleaning laser welding system of claim 6, wherein: the welding system also comprises a fourth state, and the specific working process in the fourth state is as follows:
the first locking plate is rotationally adjusted to be in a vertical state and is accommodated in the rectangular hole of the door ring main body, and the second locking plate is rotationally adjusted to be in a vertical state;
the first clamping plate moves along the transverse sliding rail, so that the door ring main body subjected to splice welding in the third state gradually approaches to the second clamping plate;
after the first locking plate is in conflict with the second locking plate, the first electric rod drives the first locking plate to move inwards, the second electric rod drives the second locking plate to move outwards until the first locking plate and the second locking plate are both arranged in the transfer groove, and the second guide post is inserted into the two semicircular grooves; at the same time, the first positioning column props against the second positioning column to retract and compress the first spring;
the third motor drives the second locking plate to rotate, and the second locking plate and the locking holes are distributed in a cross manner;
The first clamping plate resets along the transverse sliding rail, the first positioning column leaves the positioning hole, meanwhile, the second positioning column resets and is inserted into the positioning hole, the second locking plate externally shields the door ring main body, the door ring main body is left on the second clamping plate, the other side face of the door ring main body faces the welding robot, and the automatic transposition action of the door ring main body is completed.
8. The automotive door ring welding slag self-cleaning laser welding system of claim 7, wherein: the inner wall of the accommodating groove is vertically provided with a surrounding baffle, the inside of the first clamping plate is provided with a penetrating groove for the surrounding baffle to pass through in a sliding manner, the outer wall of the first clamping plate is provided with a U-shaped sealing cover in a sliding manner, the opening of the sealing cover is horizontally arranged towards one side, the surrounding baffle is used for plugging the side opening of the sealing cover, the outer wall of the sealing cover is provided with a flexible sealing door, and the top surface of the sealing cover is communicated with a flue gas adsorption pipe; a central hole for a welding gun of the welding robot to penetrate is formed in the flexible sealing door;
in the second state, the flexible sealing door, the sealing cover and the surrounding baffle together form a sealing cavity outside the door ring main body, and the protection gas exhausted by the first locking plate is filled in the sealing cavity so as to fully prevent oxidation of the welding area; the flue gas generated during welding is led out through a flue gas adsorption pipe;
In a third state, the flexible sealing door, the sealing cover and the surrounding baffle together form a sealing cavity outside the door ring main body, and the cleaned welding slag is gathered on the inner bottom surface of the sealing cover;
in the first state and the fourth state, the sealing cover and the flexible sealing door are slidingly received in the receiving area at the other end of the inner wall of the first main side plate, and then the accumulated welding slag is automatically discharged.
9. The automotive door ring welding slag self-cleaning laser welding system of claim 8, wherein: the sealing cover comprises an upper baffle, a first side baffle and a lower baffle, wherein the center of the surface of the upper baffle is communicated with a flue gas adsorption pipe, one end of the surface of the upper baffle is provided with an external connecting block, the external connecting block extends towards the direction of a first main side plate, the surface of the first main side plate is provided with a screw, the end part of the screw is provided with a first motor, and screw threads penetrate through the external connecting block; the top end of the first side baffle is vertically connected with the upper baffle, and the bottom end of the first side baffle is connected with the lower baffle; the first motor drives the screw rod to rotate so as to drive the sealing cover to be integrally arranged at the first clamping plate or in the storage area of the first main side plate.
10. The automotive door ring welding slag self-cleaning laser welding system of claim 9, wherein: a receiving groove is arranged below the storage area of the first main side plate, the first side baffle is rotationally connected with the lower baffle, a torsion spring is arranged at the rotational connection part, and the torsion spring is used for driving the lower baffle to rotate downwards for resetting; the surrounding baffle comprises a second side baffle, a supporting plate and an inclined plate, the second side baffle and the first side baffle are oppositely arranged, the bottom end of the second side baffle is vertically provided with the supporting plate, the supporting plate is arranged at the bottom of the lower baffle in parallel, and the outer end of the supporting plate is provided with the inclined plate which inclines downwards; the sealing cover is arranged in the storage area, and the torsion spring drives the lower baffle to rotate downwards into the receiving groove, so that welding slag on the surface of the lower baffle automatically falls into the receiving groove; when the sealing cover is arranged on the first clamping plate, the supporting plate pushes the lower baffle plate, so that the lower baffle plate is in a horizontal enclosing state.
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| CN113843538A (en) * | 2021-10-29 | 2021-12-28 | 昆山宝锦激光拼焊有限公司 | Six-piece laser tailor-welding jig |
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| CN116810153B (en) | 2023-11-07 |
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