CN118321788A - Steel structure frame welding device with intelligent temperature compensation function - Google Patents
Steel structure frame welding device with intelligent temperature compensation function Download PDFInfo
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- CN118321788A CN118321788A CN202410483003.9A CN202410483003A CN118321788A CN 118321788 A CN118321788 A CN 118321788A CN 202410483003 A CN202410483003 A CN 202410483003A CN 118321788 A CN118321788 A CN 118321788A
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- 238000003466 welding Methods 0.000 title claims abstract description 98
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 19
- 239000010959 steel Substances 0.000 title claims abstract description 19
- 230000001681 protective effect Effects 0.000 claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims description 55
- 238000010438 heat treatment Methods 0.000 claims description 41
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 36
- 238000012544 monitoring process Methods 0.000 claims description 26
- 229910052742 iron Inorganic materials 0.000 claims description 18
- 238000005192 partition Methods 0.000 claims description 14
- 230000000903 blocking effect Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims 4
- 238000010276 construction Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 58
- 238000001816 cooling Methods 0.000 abstract description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 4
- 239000001301 oxygen Substances 0.000 abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 15
- 238000010583 slow cooling Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000005574 cross-species transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- PMVSDNDAUGGCCE-TYYBGVCCSA-L Ferrous fumarate Chemical compound [Fe+2].[O-]C(=O)\C=C\C([O-])=O PMVSDNDAUGGCCE-TYYBGVCCSA-L 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000013021 overheating 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
- B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a steel structure frame welding device with an intelligent temperature compensation function, and relates to the technical field of steel structure frame welding. The invention forms a semi-sealing space outside the molten pool, namely the covering box, the inside of the covering box is filled with the protective gas, and the main outlet of the protective gas is a gap at the joint of two workpieces, so that the welding gun is in a cooling state and the molten pool is always in a range covered by the protective gas during the working period, and the pollution of oxygen and other gases to the molten pool and the welding area in the cooling state is avoided.
Description
Technical Field
The invention relates to the technical field of welding of steel structure frames, in particular to a steel structure frame welding device with an intelligent temperature compensation function.
Background
In the field of welding technology, temperature control is critical to ensure weld quality. Accurate control of temperature during welding prevents overheating of the material, thereby avoiding welding defects such as burn-through, deformation or embrittlement. In order to improve the reliability and consistency of welding, it has become necessary to develop a welding apparatus having a temperature compensation function.
The puddle is a critical area in the welding process that determines the geometry and microstructure of the weld. The stability of the bath, temperature control and protection have a direct effect on the welding quality. If the weld pool is exposed to air, it may be eroded by oxygen, nitrogen, and other harmful gases, resulting in blowholes, cracks, and other defects in the weld.
Disclosure of Invention
The invention aims to provide a steel structure frame welding device with an intelligent temperature compensation function, so as to solve the problems in the background art.
In order to solve the technical problems, the invention provides the following technical scheme: the welding device with the intelligent temperature compensation function for the steel structure frame comprises a main body, a welding gun and a gas tank, wherein the main body is connected with a covering box through a mechanical arm, and an opening is formed in one side of the covering box;
The welding device comprises a cover box, a welding gun, a control shaft, an eddy current heating mechanism, a welding line and a molten pool, wherein the cover box is connected with the welding gun through the control shaft, the cover box is connected with the welding gun in a sliding manner, the eddy current heating mechanism is arranged in the cover box and is used for preheating and slowly cooling the welding line and the molten pool in an eddy current heating mode;
The cover box is connected with the gas tank through a pipeline, the two sides of the interior of the cover box are provided with flow guide boxes, the lower part of each flow guide box is provided with a gas outlet, and the gas tank outputs high-pressure protective gas into the flow guide boxes through the pipeline;
The device comprises a main body, a cover box, a welding gun, a gas tank, a welding gun, an eddy current heating mechanism, a welding pool and a welding gun, wherein the workpiece to be processed is placed on a fixture tool before being used, the workpiece to be processed is fixedly connected with the tool, then the main body can control the cover box and the welding gun to be contacted with the workpiece through the mechanical arm, the central axis of the cover box coincides with the welding seam of the workpiece, then the gas tank is started to output protective gas, and the welding gun is controlled to start welding;
Through the mutual cooperation between the gas tank and the covering box, the protective gas enters the covering box from the gas tank through the pipeline, wherein the covering box is communicated with the flow guide box, finally the protective gas overflows from the lower part of the flow guide box, the gas tank outputs high-pressure protective gas, and meanwhile the protective gas overflows from the lower part of the flow guide box and is in a high-pressure state;
The weld joint is preheated, and the main reason is that the weld joint is prevented from being larger due to the fact that the preheating is beneficial to reducing welding stress, the temperature difference of a heat affected zone can be reduced due to the fact that the cooling speed is low, so that deformation caused by thermal expansion and shrinkage is reduced, the hydrogen content in the weld joint and the heat affected zone can be reduced due to the preheating, cold cracks are prevented from being generated, and meanwhile, the microstructure of weld joint metal can be improved through the preheating, and the plasticity and toughness of the weld joint metal can be improved; and then slow cooling can be carried out on the workpiece: by slowing down the cooling rate, more time can be given out to hydrogen in the weld metal, the formation of hydrogen induced cracks is reduced, slow cooling is favorable for obtaining more uniform and fine grain structures in the weld joint and a heat affected zone, so that the plasticity and toughness of the welded joint are improved, and for certain high-strength steel or other materials easy to harden, slow cooling can reduce the increase of the hardness after welding, avoid excessive hardening and further reduce the subsequent processing difficulty.
Further, the lower end surface of the flow guide box is higher than the lower end surface of the covering box, a plurality of vertical partition plates are arranged in the flow guide box, an air flow balancing assembly is arranged at the lower end of a gap of each partition plate, and the air flow balancing assembly is used for balancing the output flow of the gap of each partition plate;
The setting of baffle inside the water conservancy diversion case to and be provided with the air flow balance subassembly between the baffle, the effect of baffle lies in exporting the direction to the shielding gas, make the shielding gas export with vertical downward direction after leaving the water conservancy diversion case, make the reverse impact effect of shielding gas maximize, the below surface of cooperation water conservancy diversion case is higher than the below surface of cover case, make the shielding gas receive the restriction of cover case after leaving the water conservancy diversion case, reduce the air current and spill over from the clearance of cover case and work piece, secondly the setting of air flow balance subassembly, in order to guarantee to spill over the flow of shielding gas the same in the unit time in every baffle clearance, and then the reverse impact strength that realizes that the cover case both sides received is the same, in order to reach the cover case and advance the period in the work piece top, keep parallel state between cover case and the work piece.
Further, the airflow balancing component comprises a current control system, a connecting spring and a flow blocking block, wherein two ends of the connecting spring are respectively connected with the flow guide box and the flow blocking block, the current control system is electrically connected with the connecting spring, the flow blocking block is wedge-shaped, and the surface of one side, adjacent to the flow blocking block, of the partition plate is obliquely arranged;
The current control system is respectively electrically connected with the main body and the connecting spring, the main body controls the current intensity passing through the connecting spring through the current control system, the connecting spring is in a contracted state when current passes through the connecting spring, the contracted length of the connecting spring synchronously changes according to the magnitude of the passing current intensity, the distance between the outer side wall surface of the choke block and the outer wall of the partition plate is changed through changing the contracted length of the connecting spring, the flow rate of protective gas passing through the gap between the choke block and the partition plate in unit time is changed, the output flow rate of the protective gas is changed, and the reverse impact effect intensity of the protective gas to the covering box is controlled, so that the gap between the covering box and a workpiece is changed, and the effect of changing the height of a welding gun is achieved due to the fact that the welding gun is connected with the covering box.
Further, the middle part of the flow guide box is connected with a movable plate in a sliding manner, openings are formed in the middle parts of the flow guide box and the partition plate, two ends of the movable plate are positioned in the openings, two ends of the movable plate are provided with control mechanisms, the control mechanisms are used for controlling the movable plate to horizontally displace in the cover box, and an eddy current heating mechanism is arranged below the movable plate;
the movable plate is arranged inside the covering box and is perpendicular to the welding seam, the movable plate horizontally moves inside the covering box under the drive of the control mechanism, the vortex heating mechanism is arranged below the movable plate, the movable plate is located at one side of the welding gun at the same time, the movable plate is located in the movement direction of the welding gun, namely, the welding is carried out, and the welding-free area of the workpiece is preheated during welding.
Further, the control mechanism is an air cylinder, and two ends of the air cylinder are respectively connected with the movable plate and the flow guide box;
the cylinder controls the movable plate to horizontally reciprocate in the coverage of the coverage box so as to heat the unwelded area on the workpiece in the coverage of the coverage box.
Further, the control mechanism comprises a guide plate, iron sheets and magnets, wherein two iron sheets and two magnets are arranged, rotating shafts are arranged at two ends of the guide plate and positioned in the opening, the iron sheets are arranged at two sides of one end of the rotating shaft and are in sliding connection with the opening through the rotating shafts, the magnets are arranged at two ends inside the guide box, the two magnets are symmetrically arranged relative to the guide box, and the guide plate and the magnets are made of the same material;
the guide plates are obliquely arranged relative to the partition plates in a conventional state, wherein the guide plates and the magnets are made of the same material, iron sheets are arranged on two sides above the rotating shaft, and the guide plates in an oblique state are in an attraction state with one of the iron sheets in the conventional state;
When the baffle plate has high-pressure air flow, the air flow impacts on the inclined guide plate in a vertical downward posture, under the impact of the high-pressure air flow, the guide plate drives the iron sheet and the movable plate to synchronously move, wherein the movable plate is in sliding sealing connection with the guide box, and the baffle plate continuously moves until the baffle plate moves to one side of the guide box, namely the area where one magnet is positioned;
The two magnets are at the same height and are symmetrical about the vertical plane where the central axis of the flow guide box is located, when the flow guide plate horizontally slides in the flow guide box, the flow guide plate automatically deflects under the action of the magnets when moving to the two ends of the flow guide box, so that the movable plate horizontally reciprocates in the cover box;
vortex heating mechanisms are arranged on two sides of the lower portion of the movable plate, and the movable plate preheats a welding seam area during the reciprocating motion.
Further, the movable plate is of a hollow structure, the movable plate is communicated with the flow guide box through a pipeline, a plurality of groups of inclined plates are arranged below the inside of the movable plate, each group of inclined plates is provided with two inclined plates and distributed in an inverted V shape, the lower parts of the inclined plates are hinged with the inner wall of the movable plate, infrared monitoring elements are arranged below each group of movable plates, springs are arranged on the two sides of each inclined plate, and the springs are electrically connected with the infrared monitoring elements;
When the movable plate slides above the workpiece, the infrared monitoring element continuously monitors the distance between the movable plate and the workpiece below, the value detected by the infrared monitoring element right above the joint of the workpiece is larger than the value detected by the infrared monitoring element in other areas, the control center calculates the motion path of a welding gun according to the value fed back by each infrared monitoring element, meanwhile, the control center controls the power on of a spring right above a welding joint, a group of inclined plates connected with the power on spring are changed into an open state from a closed state, the movable plate is communicated with the guide box through a pipeline, so that high-pressure air flows are filled inside the movable plate, pass through gaps of the group of inclined plates in the open state, and then directly enter gaps of the workpiece;
because the air flow is compressed when passing through the gap of the inclined plate, then enters the gap of the workpiece, thereby forming a Venturi tube effect, the air flow expands in the gap of the workpiece, thereby generating a cleaning effect on the gap of an unwelded area, and simultaneously, the movable plate which moves in a reciprocating manner is matched with a plurality of infrared monitoring elements, so that the detection and the recheck of the welding path are realized.
Further, a plurality of vortex heating mechanisms are arranged on the outer side of the infrared monitoring element, the infrared monitoring element and the adjacent vortex heating mechanisms are positioned on the same vertical surface, and the infrared monitoring element is electrically connected with the adjacent vortex heating mechanisms;
through the connection setting between infrared monitoring element and the vortex heating mechanism, when the infrared monitoring element did not detect the gap, vortex heating mechanism was in operating condition for the fly leaf is when reciprocating motion, and vortex heating mechanism realizes initiatively opening and close, heats the work piece in the region near the gap.
Compared with the prior art, the invention has the following beneficial effects:
the arrangement of the covering box forms a semi-sealed space outside the molten pool, namely the covering box is filled with the protective gas, and the main outlet of the protective gas is a gap at the joint of two workpieces, so that the welding pool and a welding area in a cooling state are always in a range covered by the protective gas during the working period of the welding gun, and pollution of oxygen and other gases to the welding pool and the welding area in the cooling state is avoided;
Secondly, preheating an unwelded area is realized by matching with an eddy heating mechanism, and heat preservation and slow cooling of the welded area are finished;
Through reciprocating movable plate and inside and below's mechanism, realize detection and reinspection to welding path to and evenly heat not welded region, let the protection air current expand in not welded gap simultaneously, realize not welded region's clearance, improve the welding effect.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic view of the present invention in front elevational view in full section;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is an enlarged schematic view of the structure of FIG. 1A in accordance with the present invention;
FIG. 4 is a schematic perspective view of the internal structure of the cover box of the present invention;
FIG. 5 is a schematic front view of the internal structure of the cover box of the present invention;
Fig. 6 is an enlarged schematic view of the structure of fig. 5B according to the present invention.
In the figure: 1. a welding gun; 2. a cover box; 3. a vortex heating mechanism; 4. a diversion box; 401. a partition plate; 5. an air flow balancing assembly; 501. a connecting spring; 502. a choke block; 6. a movable plate; 7. a control mechanism; 701. a deflector; 702. iron sheet; 703. a magnet; 8. and a sloping plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, the present invention provides the following technical solutions: the utility model provides a steel structure frame welding set with intelligent temperature compensation function, including main part, welder 1 and gas pitcher, the main part is connected with covering case 2 through the arm, is provided with the opening on one side of covering case 2, connects through the control shaft between covering case 2 and the welder 1, sliding connection between covering case 2 and the welder 1, is provided with vortex heating mechanism 3 in the covering case 2, and vortex heating mechanism 3 preheats and slowly cools weld joint and molten pool through the mode of vortex heating, and covering case 2 is connected with the gas pitcher through the pipeline;
The arrangement of the covering box 2 forms a semi-sealed space outside the molten pool, namely the covering box 2, the inside of the covering box 2 is filled with protective gas, and the main outlet of the protective gas is a gap at the joint of two workpieces, so that the welding gun 1 is in a range covered by the protective gas all the time in the working period of the welding pool and in a cooling state, the pollution of oxygen and other gases to the welding pool and in the cooling state is avoided, and then the preheating of an unwelded area and the heat preservation slow cooling of the completed welding area are realized by matching with the vortex heating mechanism 3;
The two sides of the interior of the covering box 2 are provided with a flow guide box 4, an air outlet is formed below the flow guide box 4, a gas tank outputs high-pressure protective gas to the interior of the flow guide box 4 through a pipeline, the lower end surface of the flow guide box 4 is higher than the lower end surface of the covering box 2, a plurality of vertical baffle plates 401 are arranged in the interior of the flow guide box 4, the lower ends of gaps of the baffle plates 401 are provided with air flow balance assemblies 5, and the air flow balance assemblies 5 are used for balancing the output flow of the gaps of each baffle plate 401;
The airflow balancing assembly 5 comprises a current control system, a connecting spring 501 and a flow blocking block 502, wherein two ends of the connecting spring 501 are respectively connected with the flow guide box 4 and the flow blocking block 502, the current control system is electrically connected with the connecting spring 501, the flow blocking block 502 is wedge-shaped, and the surface of one side, adjacent to the flow blocking block 502, of the partition plate 401 is obliquely arranged;
The middle part of the flow guide box 4 is connected with a movable plate 6 in a sliding way, openings are formed in the middle parts of the flow guide box 4 and the partition plate 401, two ends of the movable plate 6 are positioned in the openings, and an eddy current heating mechanism 3 is arranged below the movable plate 6;
The movable plate 6 is of a hollow structure, the movable plate 6 is communicated with the flow guide box 4 through a pipeline, a plurality of groups of inclined plates 8 are arranged below the inside of the movable plate 6, each group of inclined plates 8 is provided with two inclined plates and distributed in an inverted V shape, the lower parts of the inclined plates 8 are hinged with the inner wall of the movable plate 6, infrared monitoring elements are arranged below each group of movable plate 6, springs are arranged on two sides of each inclined plate 8, and the springs are electrically connected with the infrared monitoring elements;
the infrared monitoring element is provided with a plurality of eddy current heating mechanisms 3 on the outer side, and is positioned on the same vertical surface with the adjacent eddy current heating mechanisms 3, and is electrically connected with the adjacent eddy current heating mechanisms 3;
Control mechanisms 7 are arranged at two ends of the movable plate 6, and the control mechanisms 7 are used for controlling the movable plate 6 to horizontally move in the cover box 2;
Through reciprocating movable plate 6 and its inside and below's mechanism, realize detection and reinspection to the welding route to and evenly heat not welded region, let the protection air current expand in not welding the gap simultaneously, realize not welded region's clearance, improve the welding effect.
The control mechanism 7 is an air cylinder, and two ends of the air cylinder are respectively connected with the movable plate 6 and the flow guide box 4.
The control mechanism 7 comprises a guide plate 701, iron sheets 702 and magnets 703, wherein the two iron sheets 702 and the two magnets 703 are respectively arranged, two ends of the guide plate 701 are respectively provided with a rotating shaft, the rotating shafts are positioned in the openings, the iron sheets 702 are arranged on two sides of one end of each rotating shaft, the guide plate 701 and the iron sheets 702 are in sliding connection with the openings through the rotating shafts, the magnets 703 are arranged at two ends inside the guide box 4, the two magnets 703 are symmetrically arranged relative to the guide box 4, and the guide plate 701 and the magnets 703 are made of the same material.
The working principle of the invention is as follows:
The device is characterized in that a workpiece to be processed is placed on a fixture tool before the device is used, the workpiece is fixedly connected with the tool, then a main body can control a cover box 2 and a welding gun 1 to contact the workpiece through a mechanical arm, the central axis of the cover box 2 coincides with a welding seam of the workpiece, then a gas tank is started to output protective gas, and the welding gun 1 is controlled to start welding, in the welding process, the working path of the cover box 2 coincides with the contact surface of the workpiece so as to ensure that the welding is performed on the contact surface of the workpiece under the control of the mechanical arm, in the welding process, a vortex heating mechanism 3 in the cover box 2 is synchronously started, the welding seam and a molten pool are always in a space filled with protective gas under the cooperation of the gas tank and the vortex heating mechanism 3, meanwhile, the vortex heating mechanism 3 heats the pre-welded area, and slowly cools the welding area just completed, the two sides of the welding gun 1 are respectively provided with the vortex heating mechanisms 3, and the vortex heating mechanism 3 on the opposite sides of the welding gun 1 are positioned on the horizontal split line of the cover box 2 so that the vortex heating mechanism 3 on the opposite sides of the welding gun 1 are just positioned on the positive side of the welding pool;
Through the mutual cooperation between the gas tank and the cover box 2, the protective gas enters the cover box 2 from the gas tank through the pipeline, wherein the cover box 2 and the flow guide box 4 are communicated, finally the protective gas overflows from the lower part of the flow guide box 4, the gas tank outputs high-pressure protective gas, the protective gas overflows from the lower part of the flow guide box 4 and then is in a high-pressure state, when the protective gas overflows from the lower part of the flow guide box 4, reverse acting force can be generated on the flow guide box 4 and the cover box 2, so that the cover box 2 and a workpiece are in a non-contact state when the cover box 2 moves above the workpiece, friction loss between the workpiece and the cover box 2 is avoided, heat on the workpiece cannot be conducted to the cover box 2 in a direct contact mode, and after the protective gas overflows, the protective gas mainly enters a range covered by the cover box 2 and overflows through a gap of the workpiece, and a small part of the protective gas overflows through a gap between the cover box 2 and the workpiece;
The weld joint is preheated, and the main reason is that the weld joint is prevented from being larger due to the fact that the preheating is beneficial to reducing welding stress, the temperature difference of a heat affected zone can be reduced due to the fact that the cooling speed is low, so that deformation caused by thermal expansion and shrinkage is reduced, the hydrogen content in the weld joint and the heat affected zone can be reduced due to the preheating, cold cracks are prevented from being generated, and meanwhile, the microstructure of weld joint metal can be improved through the preheating, and the plasticity and toughness of the weld joint metal can be improved; and then slow cooling can be carried out on the workpiece: by slowing down the cooling speed, more hydrogen in the weld metal can escape, the formation of hydrogen induced cracks is reduced, slow cooling is beneficial to obtaining more uniform and fine grain structures in the weld and a heat affected zone, so that the plasticity and toughness of a welded joint are improved, and for certain high-strength steel or other materials easy to harden, slow cooling can reduce the increase of the hardness after welding, avoid excessive hardening and further reduce the subsequent processing difficulty;
The baffle plates 401 in the guide box 4 are arranged, the air flow balance assembly 5 is arranged between the baffle plates 401, the baffle plates 401 are used for outputting and guiding the protective air, so that the protective air is outputted in the vertical downward direction after leaving the guide box 4, the reverse impact effect of the protective air is maximized, the lower surface of the guide box 4 is higher than the lower surface of the covering box 2, the protective air is limited by the covering box 2 after leaving the guide box 4, the air flow overflows from the gap between the covering box 2 and a workpiece is reduced, the air flow balance assembly 5 is arranged, the same flow rate of the protective air overflows from the gap between each baffle plate 401 in unit time is ensured, and the same reverse impact strength of the two sides of the covering box 2 is realized, so that the covering box 2 and the workpiece are kept in a parallel state during the travelling of the covering box 2 above the workpiece;
The current control system is respectively and electrically connected with the main body and the connecting spring 501, the main body controls the current intensity passing through the connecting spring 501 through the current control system, when the current passes through the inside of the connecting spring 501, the connecting spring 501 is in a contracted state, the contracted length of the connecting spring 501 is synchronously changed according to the size of the passing current intensity, the contracted length of the connecting spring 501 is changed, the distance between the outer side wall surface of the choke block 502 and the outer wall of the baffle plate 401 is further changed, the flow of the protective gas passing through the gap between the choke block 502 and the baffle plate 401 in unit time is changed, the output flow of the protective gas is changed, the reverse impact effect intensity of the protective gas on the covering box 2 is further controlled, the gap between the covering box 2 and a workpiece is changed, and the welding gun 1 is connected with the covering box 2, so that the effect of changing the height of the welding gun 1 is further achieved;
The movable plate 6 is arranged in the covering box 2, the movable plate 6 is vertical to the welding line, the movable plate 6 horizontally moves in the covering box 2 under the drive of the control mechanism 7, the vortex heating mechanism 3 is arranged below the movable plate 6, the movable plate 6 is positioned at one side of the welding gun 1 at the same time, the movable plate 6 is positioned in the movement direction of the welding gun 1, namely, the non-welded area of the workpiece is preheated during welding;
the guide plate 701 is obliquely arranged relative to the partition plate 401 in a normal state, wherein the guide plate 701 and the magnet 703 are made of the same material, iron sheets 702 are arranged on two sides above the rotating shaft, and the guide plate 701 in an oblique state is in an attraction state with one of the iron sheets 702 in the normal state;
When the high-pressure air flow exists in the baffle 401, the air flow impacts on the inclined guide plate 701 in a vertical downward posture, under the impact of the high-pressure air flow, the guide plate 701 drives the iron sheet 702 and the movable plate 6 to synchronously move, wherein the movable plate 6 is in sliding sealing connection with the guide box 4, and the same-level repulsive force generated by the guide plate 701 against the air flow is larger than that generated by the air flow near the magnet 703 when the baffle 401 moves to one side of the guide box 4, namely the area where one magnet 703 is positioned, when the baffle 701 is close to the magnet 703, the end, adjacent to the magnet 703, of the guide plate 701 is in the same polarity, so that under the characteristic of homopolar repulsive force, the guide plate 701 is deflected, the air flow is contacted with one iron sheet 702 and is transformed into contact with the other iron sheet 702, and meanwhile, the air flow intensity of the area where the magnet 703 is positioned is weaker than that of the other area, so that when the baffle 701 is subjected to the repulsive characteristic and the effect of air flow impact, the same-level repulsive force generated by the guide plate 701 against the air flow is larger than that the air flow generated by the air flow near the magnet 703;
The two magnets 703 are positioned at the same height and are symmetrical with respect to the vertical plane where the central axis of the baffle box 4 is positioned, when the baffle 701 horizontally slides in the baffle box 4, and when the baffle 701 moves to the two ends of the baffle box 4, the baffle 701 automatically deflects under the action of the magnets 703, so that the movable plate 6 horizontally reciprocates in the cover box 2;
Vortex heating mechanisms 3 are arranged on two sides below the movable plate 6, and the movable plate 6 preheats a welding seam area during the reciprocating motion;
When the movable plate 6 slides above the workpiece, the infrared monitoring elements continuously monitor the distance from the workpiece below, the numerical value detected by the infrared monitoring elements right above the joint of the workpiece is larger than the numerical value detected by the infrared monitoring elements in other areas, the control center calculates the motion path of the welding gun 1 according to the numerical value fed back by each infrared monitoring element, meanwhile, the control center controls the power on of the springs right above the welding seam, a group of inclined plates 8 connected with the power on springs are changed into an open state from a closed state, the movable plate 6 is communicated with the guide box 4 through a pipeline, so that the movable plate 6 is filled with high-pressure air flow, the high-pressure air flow passes through gaps of the group of inclined plates 8 in the open state and then directly enters the gaps of the workpiece;
Because the air flow is compressed when passing through the gap of the inclined plate 8 and then enters the gap of the workpiece, a Venturi tube effect is formed, the air flow expands in the gap of the workpiece, a cleaning effect is further generated on the gap of an unwelded area, and meanwhile, the movable plate 6 which moves in a reciprocating mode is matched with a plurality of infrared monitoring elements, so that detection and rechecking of a welding path are realized;
Through the connection setting between the infrared monitoring element and the vortex heating mechanism 3, when the infrared monitoring element does not detect the gap, the vortex heating mechanism 3 is in the operating condition for the fly leaf 6 is when reciprocating motion, and the vortex heating mechanism 3 realizes initiatively opening and close, heats the work piece in the region near the gap.
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.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. Steel construction frame welding set with intelligence temperature compensation function, including main part, welder (1) and gas pitcher, its characterized in that: the main body is connected with the covering box (2) through a mechanical arm, and an opening is formed in one side of the covering box (2);
The welding device is characterized in that the cover box (2) is connected with the welding gun (1) through a control shaft, the cover box (2) is connected with the welding gun (1) in a sliding mode, an eddy current heating mechanism (3) is arranged in the cover box (2), and the eddy current heating mechanism (3) preheats and slowly cools welding seams and a molten pool in an eddy current heating mode;
The cover box (2) is connected with the gas tank through a pipeline, the two sides of the interior of the cover box (2) are provided with the flow guide boxes (4), the lower part of each flow guide box (4) is provided with the gas outlet, and the gas tank outputs high-pressure protective gas into the flow guide boxes (4) through the pipeline.
2. The steel structure frame welding device with intelligent temperature compensation function according to claim 1, wherein: the lower extreme surface of water conservancy diversion case (4) is higher than the lower extreme surface of cover case (2), and the inside of water conservancy diversion case (4) is provided with a plurality of vertical baffle (401), air flow balance assembly (5) are installed to clearance lower extreme of baffle (401), air flow balance assembly (5) are used for balancing the output flow in every baffle (401) clearance.
3. The steel structure frame welding device with intelligent temperature compensation function according to claim 2, wherein: the air flow balance assembly (5) comprises a current control system, a connecting spring (501) and a flow blocking block (502), wherein two ends of the connecting spring (501) are respectively connected with the flow guide box (4) and the flow blocking block (502), the current control system is electrically connected with the connecting spring (501), the flow blocking block (502) is wedge-shaped, and one side surface of the partition plate (401) adjacent to the flow blocking block (502) is obliquely arranged.
4. A steel structure frame welding device with intelligent temperature compensation function according to claim 3, characterized in that: the middle part of the flow guide box (4) is connected with a movable plate (6) in a sliding way, openings are formed in the middle parts of the flow guide box (4) and the partition plate (401), two ends of the movable plate (6) are positioned in the openings, control mechanism (7) are arranged at two ends of the movable plate (6), the control mechanism (7) is used for controlling the movable plate (6) to horizontally displace in the cover box (2), and an eddy current heating mechanism (3) is arranged below the movable plate (6).
5. The steel structure frame welding device with the intelligent temperature compensation function according to claim 4, wherein: the control mechanism (7) is an air cylinder, and two ends of the air cylinder are respectively connected with the movable plate (6) and the flow guide box (4).
6. The steel structure frame welding device with the intelligent temperature compensation function according to claim 4, wherein: control mechanism (7) are including guide plate (701), iron sheet (702) and magnetite (703) all are provided with two, the both ends of guide plate (701) all are provided with the pivot, the pivot is located the opening, iron sheet (702) are installed to one end both sides of pivot, guide plate (701) and iron sheet (702) pass through pivot and opening sliding connection, magnetite (703) set up at guide box (4) inside both ends, two magnetite (703) are the symmetry setting about guide box (4), guide plate (701) and magnetite (703) are same kind of material.
7. The steel structure frame welding device with intelligent temperature compensation function according to claim 5 or 6, wherein: the movable plate (6) is of a hollow structure, the movable plate (6) is communicated with the flow guide box (4) through a pipeline, a plurality of groups of inclined plates (8) are arranged below the movable plate (6), each group of inclined plates (8) are arranged in two and are distributed in an inverted V shape, the lower parts of the inclined plates (8) are hinged to the inner wall of the movable plate (6), infrared monitoring elements are arranged below each group of movable plates (6), springs are arranged on the two sides of the inclined plates (8), and the springs are electrically connected with the infrared monitoring elements.
8. The steel structure frame welding device with the intelligent temperature compensation function according to claim 7, wherein: the infrared monitoring element is provided with a plurality of vortex heating mechanisms (3) on the outer side, and is located on the same vertical plane with the adjacent vortex heating mechanisms (3), and the infrared monitoring element is electrically connected with the adjacent vortex heating mechanisms (3).
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| DE102006047278A1 (en) * | 2006-10-04 | 2008-04-10 | Lt Ultra-Precision-Technology Gmbh | Device for laser welding and laser cutting of work pieces, comprises laser source, welding head arranged in optical system for beam deflection, and permeable protection device, which is intended between the welding head and the work pieces |
| CN204209270U (en) * | 2014-11-05 | 2015-03-18 | 九冶建设有限公司 | A kind of Flame Heating Temperature compensator for the long weld seam welding of steel plate |
| CN106903398A (en) * | 2017-04-19 | 2017-06-30 | 中国航发北京航空材料研究院 | Heat power supply welding method and its device are combined under a kind of vacuum/protective atmosphere |
| CN215822571U (en) * | 2021-08-13 | 2022-02-15 | 中车（天津）轨道交通设备有限公司 | Dust removal filter screen and air cleaner with choked flow structure |
| CN115922165A (en) * | 2022-12-29 | 2023-04-07 | 唐山松下产业机器有限公司 | Welding compensation control system based on temperature change |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102006047278A1 (en) * | 2006-10-04 | 2008-04-10 | Lt Ultra-Precision-Technology Gmbh | Device for laser welding and laser cutting of work pieces, comprises laser source, welding head arranged in optical system for beam deflection, and permeable protection device, which is intended between the welding head and the work pieces |
| CN204209270U (en) * | 2014-11-05 | 2015-03-18 | 九冶建设有限公司 | A kind of Flame Heating Temperature compensator for the long weld seam welding of steel plate |
| CN106903398A (en) * | 2017-04-19 | 2017-06-30 | 中国航发北京航空材料研究院 | Heat power supply welding method and its device are combined under a kind of vacuum/protective atmosphere |
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| CN118321788B (en) | 2024-10-22 |
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