CN115255796B - Full-welding device and welding method for catalyst matched with automatic welding robot - Google Patents
Full-welding device and welding method for catalyst matched with automatic welding robot Download PDFInfo
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- CN115255796B CN115255796B CN202210903081.0A CN202210903081A CN115255796B CN 115255796 B CN115255796 B CN 115255796B CN 202210903081 A CN202210903081 A CN 202210903081A CN 115255796 B CN115255796 B CN 115255796B
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- 238000003466 welding Methods 0.000 title claims abstract description 155
- 239000003054 catalyst Substances 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 230000003014 reinforcing effect Effects 0.000 claims description 14
- 238000012360 testing method Methods 0.000 claims description 8
- 230000003197 catalytic effect Effects 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 5
- 230000008439 repair process Effects 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 230000007547 defect Effects 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000012827 research and development Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
- B23K37/04—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
-
- 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 for a procedure covered by only one of the other main groups of this subclass
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0252—Steering means
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention provides a full-welding device and a welding method for a catalyst matched with an automatic welding robot, and belongs to the field of welding of catalysts. The problem of current catalyst converter's welding can't satisfy the requirement of leakproofness, can't use automatic robot to weld, production efficiency is low is solved. The full-welding device comprises a position changing machine and a positioning mechanism, wherein the positioning mechanism is arranged on a position changing machine turntable of the position changing machine, a catalyst is arranged on the positioning mechanism, the catalyst is welded through a welding robot, the positioning mechanism comprises a base plate, a flange positioning plate and an elbow supporting plate, the base plate is arranged on the position changing machine turntable, the flange positioning plate is arranged on the base plate through a connecting plate, the elbow supporting plate is connected with the base plate, a flange of the catalyst is connected to the flange positioning plate, and the elbow supporting plate is arranged at an elbow of the catalyst. It is mainly used for full-length welding of the catalyst.
Description
Technical Field
The invention belongs to the field of welding of catalysts, and particularly relates to a full-welding device and a full-welding method for a catalyst matched with an automatic welding robot.
Background
In the aspect of the supply of the catalyst products, the current factories mainly take the state of mass production of the die production pieces, and the requirements of the supply nodes of test pieces in the new product research and development stage can be rarely met. Therefore, the demands of all host factories in China for test pieces in the new product research and development stage are mostly carried out in the mode of opening molds and purchasing by test suppliers. The method has high cost and long time, and is not beneficial to enterprise cost reduction. In the welding process of the catalyst, a plurality of factors influencing the welding precision are arranged, and how to weld more than ten parts is difficult under the condition of ensuring the tightness of the catalyst and the position precision of related parts.
The existing catalytic converter welding mostly adopts a manual spot-setting welding method, only solves the problem of the relative position of parts, and is far from reaching the standard for the index of tightness. The adoption of manual welding method is also unfavorable for the automatic development of welding, for example, chinese patent CN213163838U discloses a flexible welding device for the trial production of a catalytic converter assembly, which gives a fixed fixture structure of an exhaust pipe, but the disclosed device can not be used for welding by using automatic equipment and ensuring the sealing requirement, can not be used for welding by using an automatic robot, can not meet the sealing requirement of the catalytic converter, and has low production efficiency.
At present, research devices and test methods for self-control of the catalyst by domestic host factories are still immature. Therefore, the full-welding clamp capable of being matched with automatic welding is designed, the production cost can be reduced for enterprises, the tightness requirement can be realized through the automatic welding robot, meanwhile, the production beat is improved, and the full-welding clamp has important significance for processing and production of enterprises.
Disclosure of Invention
In view of the above, the invention aims to provide a full-scale welding device and a welding method for a catalyst matched with an automatic welding robot, so as to solve the problems that the welding of the existing catalyst cannot meet the requirement of tightness, the automatic robot cannot be used for welding, and the production efficiency is low.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides a match automatic welding robot's full-scale welding device of catalyst converter, it includes machine and positioning mechanism shift, positioning mechanism sets up on the machine revolving stage that shifts of shifting, and the catalyst converter is installed on positioning mechanism, welds the catalyst converter through welding robot, positioning mechanism includes base board, flange locating plate and return bend backup pad, the base board is installed on shifting machine revolving stage, the flange locating plate passes through the connecting plate setting on the base board, the return bend backup pad links to each other with the base board, the flange joint of catalyst converter is on the flange locating plate, the return bend backup pad sets up the return bend department at the catalyst converter.
Still further, the connecting plate includes first connecting plate and second connecting plate, first connecting plate and second connecting plate parallel arrangement, the bottom links to each other with the base board, the flange locating plate is connected between first connecting plate and second connecting plate.
Still further, be connected with the flange cooperation board on first connecting plate and the second connecting plate, flange locating plate bottom links to each other with the flange cooperation board.
Further, reinforcing rib plates are connected to the first connecting plate and the second connecting plate, and the bottom ends of the reinforcing rib plates are connected with the base plate.
Further, the number of the reinforcing rib plates is two.
Furthermore, each plate in the positioning mechanism is connected in an inserting way and welded into an integrated structure through segmented arc welding.
Still further, the machine that shifts sets up subaerial, welding robot passes through the base and connects subaerial.
The invention also provides a welding method of the full-load welding device of the catalyst matched with the automatic welding robot, which comprises the following steps:
Step 1: the method comprises the steps that a catalyst is arranged on a positioning mechanism, a positioner is started, a turntable of the positioner is rotated, an operator controls a welding head, and annular welding seam A of a part to be welded is welded through rotation of the turntable of the positioner;
Step 2: stopping rotating the rotary table of the positioner, controlling the welding head to a safe area by an operator, and observing and recording the state of the welded part before a tester goes up;
step 3: the rotary table of the positioner rotates again, and an operator controls the welding head to realize the welding of the annular welding seams B, C and other welding seams of the welded parts;
step 4: adjusting a welding program to weld the arc-shaped weld D, E;
Step 5: stopping rotating the rotary table of the positioner, controlling the welding head to a safe area by an operator, and observing and recording the state of the welded part before a tester goes up;
Step 6: and detecting the tightness of the catalyst, and finishing welding when the tightness of the catalyst 12 reaches the standard.
Further, before the step 1 is started, the states of the positioner, the positioner turntable and the welding robot are checked firstly to check whether the assembly of each part is normal, the control system of the welding robot 4 can work normally, abnormal sound exists after the equipment is opened, then the positioner and the welding robot are started to start welding test pieces, and the next step is performed after the welding is free from problems.
Further, after the step 5 is completed, checking the welding condition, if welding leakage occurs, repairing and welding the defect position by using a TIG welding machine; and in the step 6, if the tightness of the catalyst 12 does not reach the standard, repeating the repair welding process until the tightness reaches the standard.
Compared with the prior art, the invention has the beneficial effects that: the invention not only can accurately position the position of the catalyst, ensure the coaxial of the weld joint center and the rotation center of the positioner, ensure the welding precision, simplify the welding programming difficulty, but also can ensure the air tightness requirement and the product consistency of the welded parts, eliminate irrelevant factors, improve the efficiency and reduce the production cost, and has great significance in the research and development of new products of the whole vehicle. The full-welding device provides a welding method by utilizing the rotation of the position changing machine, and the welding method is simple and has good consistency of welding effect, so that the obtained welding method has more reference value. The invention can ensure the position and pressure without adopting special die equipment for positioning, and can ensure the precision and quality of the catalyst. The invention has strong operability and realizability, can ensure the product requirement of factories, can improve the production beat, and has excellent application prospect. The invention has the automatic control capability, not only can realize the automatic control of the welding arm, but also can realize the automatic control of the rotation speed of the catalyst, simplifies the test steps and shortens the test preparation time.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of a full-scale catalytic converter welding device for a matched automatic welding robot according to the present invention;
FIG. 2 is a schematic diagram of a base plate structure in a full-scale catalytic converter welding device of a matched automated welding robot according to the present invention;
FIG. 3 is a schematic structural view of a positioning mechanism in a full-scale welding device of a catalytic converter of a matched automatic welding robot according to the present invention;
fig. 4 is a flow chart of a welding method of a full-catalyst welding device matched with an automatic welding robot.
The device comprises a 1-positioner, a 2-positioner turntable, a 3-base, a 4-welding robot, a 5-base plate, a 6-first connecting plate, a 7-second connecting plate, an 8-flange positioning plate, a 9-flange matching plate, a 10-reinforcing rib plate, an 11-bent pipe supporting plate and a 12-catalyst.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It should be noted that, in the case of no conflict, embodiments of the present invention and features of the embodiments may be combined with each other, and the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-4, the embodiment is described, a full-scale welding device for a catalyst matched with an automatic welding robot comprises a position changing machine 1 and a positioning mechanism, wherein the positioning mechanism is arranged on a position changing machine rotary table 2 of the position changing machine 1, a catalyst 12 is arranged on the positioning mechanism, the catalyst 12 is welded through the welding robot 4, the positioning mechanism comprises a base plate 5, a flange positioning plate 8 and an elbow supporting plate 11, the base plate 5 is arranged on the position changing machine rotary table 2, the flange positioning plate 8 is arranged on the base plate 5 through a connecting plate, the elbow supporting plate 11 is connected with the base plate 5, a flange of the catalyst 12 is connected to the flange positioning plate 8, and the elbow supporting plate 11 is arranged at an elbow of the catalyst 12.
When the embodiment works, the positioner turntable 2 rotates under the control of the positioner 1, the welding robot 4 performs full-welding at the corresponding point of the catalyst 12 under the control of a program, and the whole welding process works under the control of an operator.
In this embodiment, the positioner 1 is disposed on the ground, the welding robot 4 is disposed on the base 3, and the base 3 is connected to the ground. 12 holes are formed in the positioner rotary table 2, 12 holes corresponding to the positioner rotary table 2 are also formed in the base plate 5, and an assembly relationship is formed between the positioner rotary table 2 and the base plate 5.
The connecting plate includes first connecting plate 6 and second connecting plate 7, first connecting plate 6 and second connecting plate 7 parallel arrangement, the bottom links to each other with base board 5, flange locating plate 8 connects between first connecting plate 6 and second connecting plate 7, be connected with flange joining in marriage board 9 on first connecting plate 6 and the second connecting plate 7, flange locating plate 8 bottom links to each other with flange joining in marriage board 9, be connected with deep floor 10 on first connecting plate 6 and the second connecting plate 7, deep floor 10 bottom links to each other with base board 5, deep floor 10 quantity is two. Each plate in the positioning mechanism is connected in an inserting mode, the flange positioning plate 8 and the flange matching plate 9 correspond to the grooves on the first connecting plate 6 and the second connecting plate 7 in position, the bent pipe supporting plate 11 is inserted into the base plate 5 to form an inserting assembly relationship, and each plate is welded into an integrated structure through segmented arc welding. The flange positioning plate 8 is provided with 4 holes, which correspond to the holes on the flange of the catalyst 12, and are connected by tightening screws.
As shown in fig. 2-3, the base plate 5 is provided with 5 rows of rectangular square holes and 12 round holes, the first connecting plate 6, the second connecting plate 7, the reinforcing rib plate 10 and the bent pipe supporting plate 11 are provided with bosses, and the first connecting plate 6, the second connecting plate 7, the reinforcing rib plate 10, the bent pipe supporting plate 11 and the base plate 5 are in plug-in fit through connection between the square holes and the bosses. The rectangular square hole is 2mm longer than bosses on the first connecting plate 6, the second connecting plate 7, the reinforcing rib plate 10 and the bent pipe supporting plate 11, and is a fit clearance, and the rectangular Fang Kongkuan is equivalent to the plate thickness of the first connecting plate 6, the second connecting plate 7, the reinforcing rib plate 10 and the bent pipe supporting plate 11. The outer edge of the base plate 5 is a circle with the diameter of 450mm, which is equal to the outer circle of the rotary table 2 of the positioner in size, so that the welding rotation center and the welding product are coaxial, and the programming simplification and the automatic welding are realized. 4 grooves are respectively formed in the first connecting plate 6 and the second connecting plate 7, 2 grooves are in the vertical downward direction, the cutting surface at the bottom end of each groove is 60mm away from the upper surface of the base plate 5, and two reinforcing rib plates 10 are provided with corresponding 60mm cuts to be matched with the grooves, so that the assembly relation is ensured. The other 2 grooves on the first connecting plate 6 and the second connecting plate 7 are respectively matched with a flange positioning plate 8 and a flange matching plate 9. The flange matching plate 9 is inserted first, the flange matching plate 9 is fixed, and then the flange positioning plate 8 is inserted. As shown in fig. 3, 3 bosses are arranged at the bottom of the flange positioning plate 8, 3 rectangular square holes corresponding to the bosses are formed in the flange matching plate 9, 3 bosses at the bottom of the flange positioning plate 8 are inserted into the 3 rectangular square holes in the flange matching plate 9, and the two plates are corresponding in size, so that the bosses can be inserted into the square holes. After all the plates are assembled, the plates are welded into a whole through segmented arc welding and assembled on the positioner turntable 2.
The positioner 1, the positioner turntable 2, the base 3 and the welding robot 4 in the embodiment are all assembled by the existing equipment, so that detailed description of specific models and specifications is omitted.
The embodiment is a welding method of a full-catalyst welding device matched with an automatic welding robot, as shown in fig. 4, comprising the following steps:
step 1: the catalyst 12 is arranged on the positioning mechanism, the positioner 1 is started, the positioner turntable 2 is rotated, an operator controls the welding head, and the annular welding seam A of the welded part is welded through the rotation of the positioner turntable 2;
step 2: stopping rotating the positioner turntable 2, controlling the welding head to a safe area by an operator, and observing and recording the state of the welded part before a tester goes up;
step 3: the positioner turntable 2 rotates again, and an operator controls a welding head to realize the welding of the annular welding seams B, C and other welding seams of the welded parts;
step 4: adjusting a welding program to weld the arc-shaped weld D, E;
Step 5: stopping rotating the positioner turntable 2, controlling the welding head to a safe area by an operator, and observing and recording the state of the welded part before a tester goes up;
step 6: and detecting the tightness of the catalyst 12, and finishing welding when the tightness of the catalyst 12 reaches the standard.
In the above welding method, before the step 1 is started, the states of the positioner 1, the positioner turntable 2 and the welding robot 4 are checked firstly, the checking contents include whether the assembly of each part is normal, whether the control system of the welding robot 4 can work normally, whether abnormal noise exists after the equipment is opened, then the positioner 1 and the welding robot 4 are started, a welding test piece is started, the next step is performed after the welding is free from problems, and the catalyst 12 is welded.
After the step 5 is completed, checking the welding condition of the catalyst 12, if welding leakage occurs, repairing and welding the defect position by using a TIG welding machine; if the tightness of the catalyst 12 is detected to be not up to the standard in step 6, the repair welding process is repeated, and the TIG welder is used for repair welding on the corresponding position until the tightness is up to the standard.
The embodiments of the invention disclosed above are intended only to help illustrate the invention. The examples are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention.
Claims (6)
1. The utility model provides a match automatic welding robot's full-scale welding device of catalyst converter which characterized in that: the device comprises a positioner (1) and a positioning mechanism, wherein the positioning mechanism is arranged on a positioner turntable (2) of the positioner (1), a catalyst (12) is arranged on the positioning mechanism, the catalyst (12) is welded by a welding robot (4), the positioning mechanism comprises a base plate (5), a flange positioning plate (8) and a bent pipe supporting plate (11), the base plate (5) is arranged on the positioner turntable (2), the flange positioning plate (8) is arranged on the base plate (5) through a connecting plate, the bent pipe supporting plate (11) is connected with the base plate (5), a flange of the catalyst (12) is connected on the flange positioning plate (8), the bent pipe supporting plate (11) is arranged at a bent pipe of the catalyst (12), the connecting plate comprises a first connecting plate (6) and a second connecting plate (7), the first connecting plate (6) and the second connecting plate (7) are arranged in parallel, the bottom end of the base plate (5) is connected with the base plate (8) and the flange positioning plate (8) is connected between the first connecting plate (6) and the second connecting plate (7) and the flange positioning plate (9), the utility model discloses a base plate, including base plate (5), flange locating plate (8), flange cooperation board (9), base plate (5), reinforcing rib plate (10), flange cooperation board (9), flange cooperation board (10), base plate (5) are connected with reinforcing rib plate (10) on first connecting plate (6) and second connecting plate (7), reinforcing rib plate (10) bottom links to each other with base plate (5), each plate is welded into an organic whole structure through the segmentation arc welding in locating mechanism, be provided with the boss on base plate (5) on first connecting plate (6), second connecting plate (7), reinforcing rib plate (10), base plate (11), through the connection between square hole and the boss, realize the cooperation of pegging graft between first connecting plate (6), second connecting plate (7), reinforcing rib plate (10), base plate (11) and base plate (5).
2. The catalyst full-scale welding device matched with an automatic welding robot as claimed in claim 1, wherein: the number of the reinforcing rib plates (10) is two.
3. The catalyst full-scale welding device matched with an automatic welding robot as claimed in claim 1, wherein: the position changing machine (1) is arranged on the ground, and the welding robot (4) is connected to the ground through the base (3).
4. A method of welding a catalytic full-length welding apparatus for a matched automated welding robot as set forth in claim 1, wherein: it comprises the following steps:
Step 1: the method comprises the steps that a catalyst (12) is arranged on a positioning mechanism, a positioner (1) is started, a rotary table (2) of the positioner is rotated, an operator controls a welding head, and annular welding seam A of a welded part is welded through rotation of the rotary table (2) of the positioner;
Step 2: stopping rotating the rotary table (2) of the positioner, controlling the welding head to a safe area by an operator, and observing and recording the state of the welded part before a tester goes up;
Step 3: the positioner turntable (2) rotates again, and an operator controls the welding head to realize the welding of the annular welding seams B, C and other welding seams of the welded parts;
step 4: adjusting a welding program to weld the arc-shaped weld D, E;
Step 5: stopping rotating the rotary table (2) of the positioner, controlling the welding head to a safe area by an operator, and observing and recording the state of the welded part before a tester goes up;
Step 6: and detecting the tightness of the catalyst (12), and finishing welding when the tightness of the catalyst (12) reaches the standard.
5. The welding method of the full-catalyst welding device matched with the automatic welding robot, which is characterized by comprising the following steps of: before the step 1 starts, firstly, the states of the positioner (1), the positioner turntable (2) and the welding robot (4) are checked, the contents of the check include whether the assembly of each part is normal, whether a control system of the welding robot 4 can work normally, whether abnormal sound exists after equipment is opened, then the positioner (1) and the welding robot (4) are started, a welding test piece is started, and the next step is carried out after no problem exists in welding.
6. The welding method of the full-catalyst welding device matched with the automatic welding robot, which is characterized by comprising the following steps of: checking the welding condition after the step 5 is finished, and if welding leakage occurs, repairing welding the defect position by using a TIG welding machine; and in the step 6, if the tightness of the catalyst 12 does not reach the standard, repeating the repair welding process until the tightness reaches the standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210903081.0A CN115255796B (en) | 2022-07-29 | 2022-07-29 | Full-welding device and welding method for catalyst matched with automatic welding robot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210903081.0A CN115255796B (en) | 2022-07-29 | 2022-07-29 | Full-welding device and welding method for catalyst matched with automatic welding robot |
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| Publication Number | Publication Date |
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| CN115255796A CN115255796A (en) | 2022-11-01 |
| CN115255796B true CN115255796B (en) | 2024-06-11 |
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| CN202210903081.0A Active CN115255796B (en) | 2022-07-29 | 2022-07-29 | Full-welding device and welding method for catalyst matched with automatic welding robot |
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| CN214291733U (en) * | 2020-12-09 | 2021-09-28 | 安徽艾可蓝环保股份有限公司 | Vehicle flange and elbow welding clamping mechanism |
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2022
- 2022-07-29 CN CN202210903081.0A patent/CN115255796B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20110134562A (en) * | 2010-06-09 | 2011-12-15 | 대우조선해양 주식회사 | Method and apparatus for automatically welding pipe and flange |
| KR20130137109A (en) * | 2013-11-26 | 2013-12-16 | 김규원 | Industrial robotic device, non-destructive testing of spot welds |
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| Publication number | Publication date |
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| CN115255796A (en) | 2022-11-01 |
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