CN117182396B - Welding equipment and method for stainless steel air pipe of air conditioner - Google Patents
Welding equipment and method for stainless steel air pipe of air conditioner Download PDFInfo
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- CN117182396B CN117182396B CN202311320759.3A CN202311320759A CN117182396B CN 117182396 B CN117182396 B CN 117182396B CN 202311320759 A CN202311320759 A CN 202311320759A CN 117182396 B CN117182396 B CN 117182396B
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- 238000003466 welding Methods 0.000 title claims abstract description 139
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 38
- 239000010935 stainless steel Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 230000000694 effects Effects 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 2
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- 230000008859 change Effects 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
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- 241000533950 Leucojum Species 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000005520 cutting process Methods 0.000 description 1
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- 238000005530 etching Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000002912 waste gas Substances 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention relates to the technical field of air duct welding, and provides an air conditioner stainless steel air duct welding device and method, wherein the air conditioner stainless steel air duct welding device comprises an operation table, a welding head, a connecting seat and four right-angle internal supports and pushing mechanisms, wherein the welding head is arranged on the operation table and is used for welding and fixing two sections of square air ducts with the same specification; the connecting seat is arranged on the operating platform; the four right-angle internal supports are arranged on the connecting seat, each right-angle internal support is provided with a right-angle part, the four right-angle parts are respectively positioned at four vertex angles of the same rectangle, and the right-angle parts are used for contacting right-angle parts of the inner walls of two square air pipes to be welded; the pushing mechanism is arranged on the connecting seat and is in transmission connection with the four right-angle internal supports and used for pushing the four right-angle internal supports to synchronously move. According to the air conditioner stainless steel air pipe welding equipment, pressure is applied to four right-angle parts of a part to be welded, so that the corresponding right-angle parts are completely aligned, and the welding quality of the connecting parts of two sections of air pipes is effectively improved.
Description
Technical Field
The invention relates to the technical field of air duct welding, in particular to an air conditioner stainless steel air duct welding device and method.
Background
Stainless steel air pipes are divided into two types, namely circular and rectangular. The finished air pipes with various shapes, specifications and types and plates can be produced according to different requirements of engineering sites. The main materials of the stainless steel air pipe are as follows: SUS304, 316, 303, 310S, 301, 302, 304L, 316L, 321, 201, 202, 902, 904, 317, 430, and the like. The surface properties of the stainless steel air pipe mainly comprise an 8K mirror plate, a colored stainless steel plate, a stainless steel sanding plate, a stainless steel wire drawing plate, a stainless steel pattern plate, a stainless steel etching plate, titanium, snowflake sand, a 2B plate, a BA plate and an industrial medium plate. The stainless steel air duct finished product is mainly applied to various process exhaust systems, solvent exhaust systems, organic exhaust systems, waste gas exhaust systems, outdoor parts of common exhaust systems, wet and hot exhaust systems, smoke and dust removing systems and the like with higher air tightness requirements due to excellent physical and chemical performances such as corrosion resistance, heat resistance, high strength and the like, and the circular air duct has small resistance but the largest relative height dimension and is more complicated to manufacture, so that a rectangular air duct is generally used for air circulation in an air conditioning system.
Rectangular stainless steel air pipe can select corresponding connection processing mode according to the service environment of tuber pipe at the in-process of connection processing, wherein to the high and lower environment of antigravity ability of gas tightness and joint strength requirement, can select welding process or welding and angle bar flange joint's processing mode generally, and when welding, because tuber pipe deformation can influence welding quality, authorize a stainless steel tuber pipe processing welding equipment of bulletin number CN114346585B, it props stretching to stainless steel tuber pipe through the laminating of the corresponding interior limit of interior limit supporting element and stainless steel tuber pipe and stretches to stainless steel tuber pipe from inside, prevent stainless steel tuber pipe at welded in-process because of the uneven atress takes place to warp and influence welded quality.
However, in the manufacturing process of each section of the square air pipe, due to the influences of factors such as plate cutting precision and transferring stress, the welding sides of each section of air pipe cannot be completely aligned, and by adopting the scheme, although four sides of the air pipe to be welded can be aligned, the correction effect is limited at right-angle positions of the air pipes, the deformation capacity of the welded right-angle positions of the two sections of air pipes is weaker than that of the sides, when the welded air pipes are subjected to pressure, the right-angle positions of the air pipes are subjected to larger pressure on the side edges of the walls, and whether the right-angle parts of the air pipes are accurately aligned or not can directly influence the welding quality and the mechanical stability of the formed air pipes.
Disclosure of Invention
In view of this, the invention provides an air conditioner stainless steel air duct welding device and method, which applies pressure to four right-angle parts of a part to be welded from the inside of two air ducts to be welded, so that the corresponding right-angle parts are completely aligned, then welding is performed, and in the process of correcting the right angle, the side walls of the air ducts are stretched to a small extent, so that the side walls of the welded parts are synchronously aligned, and the welding quality of the connecting parts of the two air ducts is effectively improved.
The technical scheme of the invention is realized as follows:
on one hand, the invention provides an air conditioner stainless steel air pipe welding device, which comprises an operation table, a welding head, a connecting seat, four right-angle internal supports and pushing mechanisms, wherein,
The welding head is arranged on the operation table and is used for welding and fixing two sections of square air pipes with the same specification;
the connecting seat is arranged on the operating platform;
The four right-angle internal supports are arranged on the connecting seat, each right-angle internal support is provided with a right-angle part, the four right-angle parts are respectively positioned at four vertex angles of the same rectangle, and the right-angle parts are used for contacting right-angle parts of the inner walls of two square air pipes to be welded;
The pushing mechanism is arranged on the connecting seat and is in transmission connection with the four right-angle internal supports, and is used for pushing the four right-angle internal supports to synchronously move, and pressure is applied to the right-angle part of the inner wall of the square air pipe to be welded, so that the right-angle parts on the welding surfaces of the two square air pipes to be welded are completely aligned.
On the basis of the technical proposal, preferably, the pushing mechanism comprises a telescopic arm, a movable block, a resetting piece and a driving component, wherein,
The number of the telescopic arms is four, the four telescopic arms are respectively fixed by four right-angle internal supports, and one ends of the four telescopic arms are slidably arranged in the connecting seat;
The movable block is arranged in a prismatic table shape and is contacted with the end parts of the four telescopic arms, and the movable block can move towards or away from the connecting seat so that the four telescopic arms synchronously extend towards the outer part of the connecting seat;
The resetting piece is arranged on the telescopic arm and used for pulling the telescopic arm to slide towards the connecting seat;
the driving component is arranged on the movable block and used for driving the movable block to move relative to the connecting seat.
Further preferably, the driving assembly comprises a threaded cylinder, a transmission part and a power part, wherein,
The thread cylinder is fixed on the movable block;
The transmission piece is provided with a thread section which extends into the thread cylinder and is in threaded connection with the thread cylinder;
The power piece is arranged on the operating platform and used for driving the threaded section to rotate.
On the basis of the technical proposal, preferably, the right-angle internal support also comprises a connecting arm and an adjusting screw rod, wherein,
The connecting arm is fixed on the pushing mechanism and is in sliding connection with the right-angle part;
The adjusting screw rod penetrates through the connecting arm and is in threaded connection with the connecting arm, and two ends of the adjusting screw rod are movably arranged on the right-angle part.
On the basis of the technical scheme, the movable arm is preferably further provided with a movable arm, one end of the movable arm is arranged on the operation table, the other end of the movable arm is fixed with the connecting seat, and the movable arm is parallel to the table top of the operation table and can be bent towards two sides.
Further preferably, the movable arm comprises at least two sub-arms, each sub-arm is hinged in pairs, and the head sub-arm and the tail sub-arm are respectively fixed with the operation table and the connecting seat.
Still further preferably, the transmission member includes a transmission rod and a universal joint, wherein,
The number of the transmission rods is at least two;
the universal joint is arranged between two adjacent transmission rods and is used for enabling the transmission rods to be in transmission connection, and the thread section is arranged on the transmission rod close to the connecting seat.
On the basis of the technical scheme, the three-axis welding device preferably further comprises a three-axis module, wherein the three-axis module is fixed on the operating platform, and the welding head is arranged on the movable end of the three-axis module.
On the basis of the technical scheme, the square air duct welding machine preferably further comprises a supporting table, wherein the supporting table is arranged on the operation table and is provided with a bedplate, the relative distance between the bedplate and the operation table can be adjusted by the supporting table, and the bedplate is used for supporting two square air ducts to be welded before welding is completed.
On the other hand, the invention provides a welding method for an air conditioner stainless steel air pipe, which is realized based on the welding equipment, wherein two sections of air pipes to be welded are a first section of air pipe and a second section of air pipe respectively, and the method comprises the following steps:
s1, sleeving a first section of air pipe on one side of a connecting seat, so that four corners of the side to be welded of the first section of air pipe correspond to four right-angle internal supports;
S2, sleeving the second section of air pipe to the other side of the connecting seat, so that four corners of the side to be welded of the second section of air pipe correspond to four right-angle internal supports and are in contact with the first section of air pipe;
S3, driving the right-angle inner support to synchronously separate from the connecting seat by the pushing mechanism, and enabling each right-angle part to contact the right-angle inner wall corresponding to the welding side of the first section of air pipe and the second section of air pipe;
S4, pressing the right-angle inner walls of the two sections of air pipes corresponding to the right-angle parts, correcting the welding sides of the two sections of air pipes, and enabling the welding sides to be aligned completely;
S5, welding the welding sides of the two sections of air pipes by the welding head.
Compared with the prior art, the welding equipment and the method for the air conditioner stainless steel air pipe have the following beneficial effects:
(1) The pushing mechanism and the four right-angle internal supports are arranged, the pushing mechanism pushes the four right-angle parts to move towards the direction away from the connecting seat until the four right-angle internal walls of the two air pipes are respectively contacted, at the moment, the right-angle parts continue to move, pressure is applied to the eight right-angle internal walls to align the eight right-angle internal walls, so that the situation that the right-angle parts cannot be aligned due to precision errors in the production process is avoided, the mechanical strength of the welding parts is improved by correcting the slightly misplaced welding parts, the integral welding quality of the air pipes is improved, in addition, after the four right-angle edges of the two air pipes are welded, the right-angle corresponding edges of the air pipes are aligned under the pressure, so that the right-angle corresponding edges of the air pipes can be directly welded to finish the welding operation of the two air pipes, and the four right-angle parts are synchronously moved and can be suitable for the welding operation of different air pipes with the same length-width ratio;
(2) The movable arm is arranged, the transmission part is arranged to be combined with the universal joint, so that the connecting seat can enter the bent pipe, and further the two sections of air pipes are internally supported, so that the movable arm is applicable to welding operation of the bent pipe and the straight pipe and welding operation of the bent pipe and the bent pipe, has stronger applicability, and is especially applicable to welding operation of a longer straight pipe section and a shorter bent pipe section; (3) By arranging the supporting table, the two sections of air pipes to be welded are preliminarily supported before welding, so that the two sections of air pipes cannot deviate during the right-angle internal stay action and welding operation, and the two sections of air pipes can be arranged in a lifting manner, so that the right-angle internal stay can be well matched for welding and processing the air pipes with different specifications;
(4) The adjusting screw rod is arranged on the right-angle part, and the right-angle part is moved by rotating the adjusting screw rod so as to adjust the relative positions of the right-angle part and the connecting arm, further adapt to the length-width ratios of different air pipes and improve the applicability of welding processing.
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 is a perspective view of an air conditioner stainless steel air duct welding apparatus of the present invention;
FIG. 2 is a perspective view of four right-angle internal stay arrangements of the air conditioner stainless steel air pipe welding equipment of the invention;
FIG. 3 is a side view of a right angle inner support and a connecting seat of the air conditioner stainless steel air pipe welding equipment of the invention;
FIG. 4 is a cross-sectional view of the structure at A-A in FIG. 3;
FIG. 5 is an enlarged schematic view of FIG. 4 at B;
FIG. 6 is a perspective view of a right-angle inner support and a connecting seat of the air conditioner stainless steel air pipe welding equipment of the invention;
Fig. 7 is a schematic diagram of the internal structure of the connecting seat of the air conditioner stainless steel air pipe welding equipment.
Detailed Description
The following description of the embodiments of the present invention will clearly and fully describe the technical aspects of the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present invention.
As shown in figures 1-7, the welding equipment for the air conditioner stainless steel air pipe comprises an operation table 1, a welding head 2, a connecting seat 3, four right-angle internal supports 4 and a pushing mechanism 5.
The operation desk 1 is a main bearing component of the equipment, and is provided with a larger operation surface for welding operation, the desktop of the operation desk 1 is preferably made of stainless steel, and has certain mechanical strength to prevent the impact of a wind pipe from deforming, and devices such as an operation host and a control cabinet can be selectively installed on the operation desk 1 according to actual conditions.
The welding head 2 is arranged on the operation table 1 and is used for welding and fixing two sections of square air pipes with the same specification, specifically, the welding head 2 is required to be arranged on the outer sides of the welding positions of the two square air pipes during welding operation, and if the welding positions of the square air pipes are fixed, the welding head 2 can finish the welding and fixing of one side of the square air pipes through single-shaft movement.
The connecting seat 3 is arranged on the operating platform 1 and serves as an internal supporting bearing piece of a welding part of the square air pipe, in the welding process, the connecting seat 3 is positioned at the center of the whole welding frame, namely, the position of the connecting seat 3 determines the welding operation position on the operating platform 1, before the welding operation, the connecting seat 3 needs to extend into the square air pipe, particularly needs to penetrate through the first section of square air pipe to the other end of the square air pipe, and then the outer side of the second section of square air pipe is sleeved on the connecting seat 3 to be in contact with the first section of square air pipe, so that the welding surfaces of the two square air pipes are in contact.
The four right-angle internal supports 4 are all arranged on the connecting seat 3, the right-angle internal supports 4 are provided with right-angle parts 41, the four right-angle parts 41 are respectively positioned at the four top angles of the same rectangle, the right-angle parts 41 are used for contacting the right angles of the inner walls of two square air pipes to be welded, the whole outside of the four right-angle parts 41 is composed of two mutually perpendicular surfaces, one side of each of the two adjacent right-angle parts 41 is positioned in the same plane, namely, the four right-angle parts 41 respectively form the four right angles of the rectangle, and how the four right-angle parts 41 move ensures that the four right-angle parts 41 can form a rectangle.
The pushing mechanism 5 is arranged on the connecting seat 3 and is in transmission connection with the four right-angle internal supports 4, and is used for pushing the four right-angle internal supports 4 to synchronously move, pressure is applied to right-angle positions of the inner walls of the square air pipes to be welded, so that the right-angle parts 41 on the welding surfaces of the two square air pipes to be welded are completely aligned, in a specific welding process, the pushing mechanism 5 synchronously pushes the four right-angle internal supports 4, so that the four right-angle parts 41 on the four right-angle internal supports 4 are always kept on the four right angles of a rectangle, but due to structural differences of the pushing mechanism 5, the change of length-width ratio or size exists in the process of pushing the four right-angle parts 41, and therefore, the positions of the four right-angle parts 41 can be preferentially set for air pipes of different specifications, and the four right angles of the air pipes can be just corrected after being pushed in place.
In the present embodiment, the length and width are the length and width of the air duct welding surface, respectively.
The pushing mechanism 5 pushes the four right-angle parts 41 to move towards the direction far away from the connecting seat 3 until the four right-angle parts are respectively contacted with the four right-angle inner walls of the two air pipes, at this time, the right-angle parts 41 continue to move, pressure is applied to the eight right-angle inner walls to enable the eight right-angle inner walls to be aligned in pairs, further, the phenomenon that the right-angle parts cannot be aligned due to precision errors in production procedures is avoided, the mechanical strength of the welding parts is improved by correcting the slightly misplaced welding parts, and further, the whole welding quality of the air pipes is improved.
It should be noted that, because the right angles of the air pipes are not located on the same side, the four right angles cannot be welded through only a single movement of the welding head 2, the air pipes are required to rotate, or the welding head 2 can move from the upper part of the air pipes to two sides of the air pipes, the air pipes are rotated, the connecting seat 3 is rotated or taken down, the air pipes are rotated by 180 degrees and then are mounted on the connecting seat 3, and in order to facilitate understanding, the air pipes are taken down, and the air pipes are rotated by 180 degrees and then are mounted on the connecting seat 3 in a welding mode, so that the complete welding of the two sections of air pipes is realized.
In this embodiment, the pushing mechanism 5 includes four telescopic arms 51, a movable block 52, a reset piece 53 and a driving component 54, where the number of the telescopic arms 51 is four, and the four telescopic arms are fixed by four right-angle inner struts 4 respectively, one ends of the four telescopic arms 51 are slidably disposed in the connecting seat 3, the movable block 52 is in a prismatic table shape and contacts with the ends of the four telescopic arms 51, the movable block 52 can move towards or away from the connecting seat 3, so that the four telescopic arms 51 extend towards the outside of the connecting seat 3 synchronously, the reset piece 53 is disposed on the telescopic arms 51 and is used for pulling the telescopic arms 51 to slide towards the connecting seat 3, and the driving component 54 is disposed on the movable block 52 and is used for driving the movable block 52 to move relative to the connecting seat 3.
Specifically, the whole of movable block 52 is a prismatic platform component to the activity sets up on connecting seat 3, has offered two square mouths on connecting seat 3, supplies movable block 52 to remove, and connecting seat 3 is two square board combinations, and inside cavity, has all offered four movable mouths on two square boards, and the both sides of flexible arm 51 have all set up the slider, and the slider of both sides extends to the movable mouths of two square boards respectively in, so that flexible arm 51 can carry out the straight line and slide, the tip of flexible arm 51 and the edge adaptation of movable block 52, and when the activity was moved to movable block 52, promoted flexible arm 51 through the edge, and four edges of movable block 52 all are the mirror image each other, can make four flexible arms 51 synchronous motion.
In this embodiment, the smallest surface of the movable block 52 faces the connecting seat 3, when the movable block 52 moves towards the connecting seat 3, the four telescopic arms 51 can be pushed to extend towards the outside of the connecting seat 3, the right-angle inner wall of the air duct can be pushed to push the right-angle part 41, in addition, the reset piece 53 can directly select a spring, two ends of the reset piece 53 are respectively connected with two adjacent telescopic arms 51, when the telescopic arms 51 extend, the reset piece 53 can generate stretching deformation to store energy, and when the movable block 52 moves towards the outside of the connecting seat 3, the reset piece 53 can recover deformation to enable the telescopic arms 51 to always contact the movable block 52 and retract towards the inside of the connecting seat 3.
In order to make the driving assembly 54 still drive the movable block 52 to move relative to the connecting seat 3 when extending into the air duct, the driving assembly 54 includes a threaded cylinder 541, a transmission member 542 and a power member 543, the threaded cylinder 541 is fixed on the movable block 52, the transmission member 542 has a threaded section 5421, the threaded section 5421 extends into the threaded cylinder 541 and is in threaded connection with the threaded cylinder 541, and the power member 543 is disposed on the operating platform 1 and is used for driving the threaded section 5421 to rotate.
When the welding device is specifically used, the driving member 543 drives the driving member 542 to rotate, the driving member 542 outputs power to the thread section 5421, the thread section 5421 rotates in the thread cylinder 541, relative displacement is generated by threads, and the movable block 52 can be pushed to move relative to the connecting seat 3.
In general, the length-width ratio of the air duct is in the range of 1-1.5, in order to be suitable for air ducts with different specifications, the right-angle internal support 4 further comprises a connecting arm 42 and an adjusting screw 43, wherein the connecting arm 42 is fixed on the pushing mechanism 5, specifically fixed with a telescopic arm 51 of the pushing mechanism 5 and slidably connected with the right-angle part 41, the adjusting screw 43 penetrates through the connecting arm 42 and is in threaded connection with the connecting arm 42, and two ends of the adjusting screw 43 are movably arranged on the right-angle part 41.
When the positions of the four right-angle parts 41 after extending are required to be adjusted, the adjusting screw 43 can be twisted, so that the right-angle parts 41 slide on the connecting arms 42, the relative positions of the right-angle parts are adjusted, the fact that after one right-angle part 41 is adjusted, the other three right-angle parts 41 are required to be correspondingly adjusted is required, specifically, the right-angle parts 41 are provided with guide bars, the connecting arms 42 are provided with guide grooves, the guide bars extend into the guide grooves, the guide bars are parallel to the adjusting screw 43, the connecting arms 42 can relatively move relative to the right-angle parts 41 through the guide grooves and the guide bars, the right-angle parts 41 can also be supported through the guide grooves and the guide bars, for the convenience of twisting the adjusting screw 43, a hexagon head can be arranged at the end part of the adjusting screw 43, or each adjusting screw 43 is linked through a structure, and meanwhile, the four adjusting screws 43 are required to be rotationally adjusted, in addition, the connecting arms 42 and the telescopic arms 51 are fixed through bolts, so that each right-angle inner support 4 can be synchronously replaced, and other air pipes are applicable.
In this embodiment, the transmission member 542 is not suitable for being used as a support for the connection base 3, so a movable arm 6 is further provided, one end of the movable arm 6 is disposed on the operation table 1, specifically fixed on a stand column, the other end is fixed with the connection base 3, the movable arm 6 is parallel to the table top of the operation table 1 and can be bent towards two sides, the transmission member 542 is disposed in the movable arm 6, specifically, the center should be, and for air duct welding, there is a case of welding an elbow with a straight pipe, and there is a case of welding an elbow with an elbow, after this, the movable arm 6 needs to be bent towards two sides.
Specifically, the movable arm 6 includes at least two sub-arms 61, each sub-arm 61 is hinged in two pairs, and the first sub-arm 61 and the second sub-arm 61 are fixed with the operation table 1 and the connection seat 3 respectively, the more the number of sub-arms 61 is, the larger the applicable bending angle of the air duct is, the three-section sub-arms 61 are adopted for connection in this embodiment, so that the bending angle of the movable arm 6 reaches ninety degrees, that is, the first section air duct sleeved outside the connection seat 3 can be an air duct of ninety degrees, and the second section air duct does not need to be sleeved outside the movable arm 6, so that the bending angle of the second section air duct does not need to be considered, the length of the three-section sub-arm 61 adopted in this embodiment is not fixed, and also does not need to be the same, and the three-section air duct can be specifically set according to the actual use condition.
In order to accommodate the bending of the movable arm 6, the driving member 542 includes at least two driving rods 5422 and universal joints 5423, the universal joints 5423 are disposed between two adjacent driving rods 5422 for driving and connecting the driving rods 5422, the threaded section 5421 is disposed on the driving rod 5422 near the connecting seat 3, it should be noted that the number of driving rods 5422 needs to be consistent with the number of sub-arms 61 and the length needs to be smaller than that of the corresponding sub-arms 61, the driving rods 5422 are disposed in the sub-arms 61, and the number of universal joints 5423 is one less than that of the sub-arms 61 and disposed at the hinge of the sub-arms 61, in this embodiment, the number of universal joints 5423 is two, it should be noted that when the number of driving rods 5422 is greater than three, a bearing is required to be disposed in the middle sub-arm 61 for connecting the driving rods 5422 to improve the stability of the driving rods 5422, and at the same time, the driving rods 5422 need to be prevented from being deviated from contacting the inner wall of the sub-arms 61.
In this embodiment, the welding device further includes four right-angle copper backing plates 7, and four right-angle copper backing plates 7 are respectively embedded in four right-angle portions 41 for contacting right-angle welding seam portions of two square air pipes to be welded, so as to avoid that the right-angle portions 41 and the air pipes are made of the same material to affect normal welding.
As a preferred embodiment, still include brace table 8, brace table 8 sets up on operation panel 1, brace table 8 has platen 81, the relative interval of adjustable platen 81 of brace table 8 and operation panel 1, platen 81 is used for supporting two square tuber pipes that wait to weld before the welding is accomplished, in actual welding process, because the tuber pipe self exists certain dead weight, so need set up the support to the tuber pipe, when using, platen 81 can preset according to the position of connecting seat 3 and the specification of tuber pipe, specifically, the brace table 8 realizes the altitude mixture control to platen 81 through the scissors rest, set up the lead screw on the scissors rest, through rotatory lead screw for the scissors rest moves about, in the outside, can set up a motor or the hand wheel of connecting the lead screw, the altitude mixture control of support 81 is supplied to the operating personnel.
It should be noted that, the air duct may also be supported by clamping, but the present embodiment is realized by providing a support platform in consideration of adapting to the bent air duct.
In this embodiment, still include triaxial module 9, triaxial module 9 is fixed on operation panel 1, and soldered connection 2 sets up on the movable end of triaxial module 9, drive soldered connection 2 through triaxial module 9 and carry out the motion in three-dimensional space, with two sections tuber pipes of welding, it should be noted that, this embodiment is because applicable crooked tuber pipe, so the welding position probably changes, adopt triaxial module 9 to adapt to this position change and carry out welding operation, if need not be applicable to crooked tuber pipe, then can directly adopt biaxial module, namely biaxial module sets up in the outside of welding seam for soldered connection 2 removes along the welding seam, and can be oriented or keep away from the welding seam can.
If automatic welding is required to be further realized, a robot is arranged outside the station to carry out the carrying operation of the air pipe, a camera is arranged on the outer side of the welding head 2, the part to be welded is identified and positioned in an image identification mode, and meanwhile, welding quality detection and the like are finished.
The method supports the right angle of the two sections of air pipes to be welded from the inner wall of the two sections of air pipes to be welded so as to correct the right angle position or angle, and stretches the two sides while correcting the right angle, so that the sides to be welded of the two sections of air pipes are completely aligned, and the method specifically comprises the steps S1-S5.
Step S1: the first section of air pipe is sleeved on one side of the connecting seat 3, so that four corners of the side to be welded of the first section of air pipe respectively correspond to the four right-angle inner supports 4.
In this embodiment, since the movable arm 6 is disposed, the first-section air duct may be sleeved outside the connecting seat 3 by a bent pipe, to be precise, the first-section air duct is entirely located outside the movable arm 6, and when the first-section air duct is sleeved outside the movable arm 6, the connecting seat 3 is applied with a bent portion thereof in the first-section air duct, so that the movable arm 6 will directly generate the same bending amplitude, and it should be noted that after the first-section air duct is in place, the connecting seat 3 should be ensured to be parallel to the surface to be welded of the first-section air duct, and also a plurality of elastic rollers may be directly disposed on the connecting seat 3 to contact the inner wall of the first-section air duct, so as to adjust the position of the connecting seat 3 in real time.
Step S2: the second section of air pipe is sleeved on the other side of the connecting seat 3, so that four corners of the side to be welded of the second section of air pipe respectively correspond to the four right-angle internal supports 4 and are in contact with the first section of air pipe.
After the first section of air pipe is sleeved outside the movable arm 6, the second section of air pipe is a straight pipe or an elbow pipe, no influence is caused on the movable arm 6 or the connecting seat 3, in actual operation, the first section of air pipe is preferably sleeved at one half of the connecting seat 3 by a welding side, the second section of air pipe is sleeved at the other half of the connecting seat 3, and the deviation cannot exceed one third of the thickness of the connecting seat 3.
Step S3: the pushing mechanism 5 drives the right-angle inner support 4 to be synchronously far away from the connecting seat 3, and each right-angle part 41 is contacted with the right-angle inner wall corresponding to the welding side of the first section of air pipe and the second section of air pipe.
Referring to the welding equipment, in this embodiment, one side of the connecting seat 3 facing the length direction of the air duct is square, so as to facilitate adaptive adjustment according to the air duct specification, the setting makes the extending angles and lengths of the four right-angle parts 41 identical when extending outwards, for example, the air duct with 250mm by 200mm specification has a length-width difference of 50mm, in the initial setting, the length-width of the rectangle formed by the four right-angle parts 41 should also be configured to be 50mm different, for example, the rectangle formed by the four right-angle parts 41 is 200mm by 150mm, and so on,
Step S4: the right-angle part 41 presses the right-angle inner walls of the two sections of air pipes, corrects the welding sides of the two sections of air pipes and makes the welding sides of the two sections of air pipes completely aligned.
After the length and width values of the square air duct which needs to be contacted by the four right-angle parts 41 are preset, an adaptive allowance distance is required to be set, the adaptive allowance distance can be set according to the use condition and can be set to be 1-3mm, the four right-angle parts 41 cannot apply excessive pressure to the inner wall of the air duct after moving in place, and the adaptive allowance distance is moved again to apply pressure, so that errors of welding sides of different air ducts are adapted.
In addition, the pressure sensor is arranged on the right-angle internal support 4 to detect real-time pressure, and when the pressure reaches a preset threshold value and the adaptive margin distance is not completed, the right-angle internal support 4 also needs to stop moving, so that the damage to the air pipe is avoided.
Step S5: the welding head 2 welds the welding side of the two sections of air pipes.
After two sections of tuber pipes are completely aligned, welding operation can be carried out on the side to be welded by the welding head 2, when welding, the right angle of the butt joint part of the two sections of tuber pipes is preferentially welded, in addition, if the connecting seat 3 is arranged to be of a rotatable structure, the welding head 2 can carry out one-time welding, or two welding heads 2 are arranged to synchronously weld the two sections of tuber pipes from the upper side and the lower side, in the embodiment, the right angle welding is required to be completed, after the welding of part of side edges is completed, the welding equipment is taken down, and then the rest welding operation is completed by other stations.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (6)
1. An air conditioner stainless steel tuber pipe welding equipment, its characterized in that: comprises an operation table (1), a welding head (2), a connecting seat (3), four right-angle internal supports (4) and a pushing mechanism (5), wherein,
The welding head (2) is arranged on the operating platform (1) and is used for welding and fixing two sections of square air pipes with the same specification;
The connecting seat (3) is arranged on the operating platform (1);
The four right-angle internal supports (4) are arranged on the connecting seat (3), the right-angle internal supports (4) are provided with right-angle parts (41), the four right-angle parts (41) are respectively positioned at four top angles of the same rectangle, and the right-angle parts (41) are used for contacting right-angle parts of the inner walls of two square air pipes to be welded;
The pushing mechanism (5) is arranged on the connecting seat (3) and is in transmission connection with the four right-angle internal supports (4) and is used for pushing the four right-angle internal supports (4) to synchronously move, and pressure is applied to right-angle positions of the inner walls of the square air pipes to be welded, so that right-angle parts (41) on the welding surfaces of the two square air pipes to be welded are completely aligned;
The pushing mechanism (5) comprises a telescopic arm (51), a movable block (52), a resetting piece (53) and a driving component (54), wherein,
The number of the telescopic arms (51) is four, the telescopic arms are respectively fixed with the four right-angle inner supports (4), and one ends of the four telescopic arms (51) are slidably arranged in the connecting seat (3);
the movable block (52) is arranged in a prismatic table shape and is contacted with the end parts of the four telescopic arms (51), and the movable block (52) can move towards or away from the connecting seat (3) so that the four telescopic arms (51) synchronously extend towards the outside of the connecting seat (3);
The reset piece (53) is arranged on the telescopic arm (51) and is used for pulling the telescopic arm (51) to slide towards the connecting seat (3);
the driving component (54) is arranged on the movable block (52) and is used for driving the movable block (52) to move relative to the connecting seat (3);
the driving component (54) comprises a thread cylinder (541), a transmission piece (542) and a power piece (543), wherein,
The thread cylinder (541) is fixed on the movable block (52);
The transmission member (542) has a threaded section (5421), said threaded section (5421) extending into the threaded cylinder (541) and being threadedly connected thereto;
the power piece (543) is arranged on the operating platform (1) and is used for driving the thread section (5421) to rotate;
the transmission member (542) includes a transmission rod (5422) and a universal joint (5423), wherein,
The number of the transmission rods (5422) is at least two;
The universal joint (5423) is arranged between two adjacent transmission rods (5422) and is used for enabling the transmission rods (5422) to be in transmission connection, and the threaded section (5421) is arranged on the transmission rod (5422) close to the connecting seat (3);
The right-angle inner support (4) also comprises a connecting arm (42) and an adjusting screw rod (43), wherein,
The connecting arm (42) is fixed on the pushing mechanism (5) and is in sliding connection with the right-angle part (41);
The adjusting screw rod (43) penetrates through the connecting arm (42) and is in threaded connection with the connecting arm (42), and two ends of the adjusting screw rod (43) are movably arranged on the right-angle part (41).
2. The air conditioner stainless steel air duct welding apparatus of claim 1, wherein: still include expansion arm (6), expansion arm (6) one end sets up on operation panel (1), and the other end is fixed with connecting seat (3), expansion arm (6) are parallel with the mesa of operation panel (1), and can buckle towards both sides.
3. The air conditioner stainless steel air duct welding apparatus of claim 2, wherein: the movable arm (6) comprises at least two sub-arms (61), each sub-arm (61) is hinged in pairs, and the head sub-arm and the tail sub-arm (61) are respectively fixed with the operating platform (1) and the connecting seat (3).
4. The air conditioner stainless steel air duct welding apparatus of claim 1, wherein: still include triaxial module (9), triaxial module (9) are fixed on operation panel (1), and soldered connection (2) set up on the activity end of triaxial module (9).
5. The air conditioner stainless steel air duct welding apparatus of claim 1, wherein: the welding machine further comprises a supporting table (8), wherein the supporting table (8) is arranged on the operation table (1), the supporting table (8) is provided with a table plate (81), the supporting table (8) can adjust the relative distance between the table plate (81) and the operation table (1), and the table plate (81) is used for supporting two square air pipes to be welded before welding is completed.
6. An air conditioner stainless steel air pipe welding method is characterized in that the welding equipment is based on any one of claims 1-5, two sections of air pipes to be welded are a first section of air pipe and a second section of air pipe respectively, and the method comprises the following steps:
s1, sleeving a first section of air pipe on one side of a connecting seat (3), and enabling four corners of the side to be welded of the first section of air pipe to correspond to four right-angle inner supports (4);
s2, sleeving the second section of air pipe on the other side of the connecting seat (3), enabling four corners of the side to be welded of the second section of air pipe to correspond to the four right-angle inner supports (4) respectively, and enabling the second section of air pipe to be in contact with the first section of air pipe;
S3, driving the right-angle inner support (4) to synchronously separate from the connecting seat (3) by the pushing mechanism (5), and enabling each right-angle part (41) to contact the right-angle inner wall corresponding to the welding side of the first section of air pipe and the second section of air pipe;
s4, pressing the right-angle inner walls of the two sections of air pipes corresponding to the right-angle parts (41), correcting the welding sides of the two sections of air pipes, and enabling the welding sides to be aligned completely;
S5, welding the welding sides of the two sections of air pipes by the welding head (2).
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