CN114058836A - Welding bead residual stress relieving device and method - Google Patents
Welding bead residual stress relieving device and method Download PDFInfo
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- CN114058836A CN114058836A CN202111206403.8A CN202111206403A CN114058836A CN 114058836 A CN114058836 A CN 114058836A CN 202111206403 A CN202111206403 A CN 202111206403A CN 114058836 A CN114058836 A CN 114058836A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D10/00—Modifying the physical properties by methods other than heat treatment or deformation
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/04—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering with simultaneous application of supersonic waves, magnetic or electric fields
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/50—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints
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Abstract
The invention belongs to the technical field of welding stress relief, and particularly relates to a welding bead residual stress relief device and a method, wherein the welding bead residual stress relief device comprises a shell, a vibration unit, an electric push rod, a power box and a controller; the controller controls the power box to be electrified; the position, close to the outer surface edge, in the shell is fixedly connected with a vibration unit, and the output end of the vibration unit faces the outer surface edge of the shell; a power box is fixedly connected to one side of the shell far away from the vibration unit; one side of the shell adjacent to the vibration unit is fixedly connected with a group of electric push rods uniformly; through setting up clean board, the casing motion drives clean board motion, and clean board edge department is near steel construction surface motion, and the weld slag that splashes when clean board shovels steel construction surface's attachment and welding increases steel construction welding surface's clean degree to increase the stability of casing motion, and then increase welding bead stress relieving effect.
Description
Technical Field
The invention belongs to the technical field of welding stress relief, and particularly relates to a device and a method for relieving residual stress of a welding bead.
Background
Welding stress refers to internal stress in the workpiece being welded caused by welding. Weld stress relief requires relief by means of bulk high temperature tempering, mechanical stretching and vibration. The vibration stress relief device is a device which performs vibration treatment on a workpiece (including a casting, a forging, a welded structure and the like) for several minutes to tens of minutes at a natural frequency of the workpiece to relieve residual stress of the workpiece and stabilize dimensional precision. The technological device has the characteristics of low energy consumption, short time, remarkable effect and the like. In recent years, the method is rapidly developed and widely applied at home and abroad.
The prior art also discloses a technical scheme of a device and a method for eliminating the residual stress of a welding bead, for example, a Chinese patent with the application number of CN201621171390X discloses a welding stress eliminating device for a fillet weld of a large-sized steel member, which comprises a walking mechanism and a vibration mechanism, wherein the walking mechanism comprises a vehicle body, a permanent magnetic roller arranged on the vehicle body and a vehicle body driving device, the vehicle body is driven by the vehicle body driving device, and the driving device is connected with an external driving power supply; the vibration mechanism comprises a magnetic insulation guide sleeve, an elastic component and a hammer head, and an electromagnetic winding is arranged in the hammer head; the magnetism-insulating guide sleeve is fixed on the vehicle body, the elastic component is arranged in the magnetism-insulating guide sleeve, one end of the elastic component is fixedly connected with the top wall of the magnetism-insulating guide sleeve, and the other end of the elastic component is connected with the hammer head; the electromagnetic winding in the hammer head is connected with a vibration power supply through a lead; however, this technical scheme is not enough, this patent utilize permanent magnetism walking gyro wheel for whole device is stable depends on the steel member, and realize driving vibration mechanism uniform movement, make each department of the welding seam of steel member obtain equal the beating, increase the effect of eliminating stress, nevertheless in the steel construction carries out electric welding process, part welding liquid splashes from the welding seam and falls in the welding seam of steel construction around forming the welding slag, in the forward motion process of permanent magnetism walking gyro wheel in this patent, the welding slag contacts permanent magnetism walking gyro wheel, lead to permanent magnetism walking gyro wheel to jolt, cause the movement track of permanent magnetism walking gyro wheel to shift in the jolt process, thereby influence the dynamics that vibration mechanism applys vibration load to welding portion in the steel construction, and then influence the effect of the welding bead eliminating stress of steel construction.
In view of the above, the present invention provides a device and a method for eliminating residual stress of a weld bead, which solve the above problems.
Disclosure of Invention
The invention provides a device and a method for eliminating residual stress of a welding bead, aiming at overcoming the defects of the prior art and solving the problems that in the process of forward movement of a permanent magnetic walking roller, welding slag contacts the permanent magnetic walking roller, so that the permanent magnetic walking roller jolts, the movement track of the permanent magnetic walking roller deviates in the jolting process, the force of a vibration mechanism applying vibration load to a welding part in a steel structure is influenced, and the effect of eliminating stress of the welding bead of the steel structure is further influenced.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a welding bead residual stress eliminating device and a method, wherein the welding bead residual stress eliminating device comprises a shell, a vibration unit, an electric push rod, a power box and a controller; the controller controls the power box to be electrified; the position, close to the outer surface edge, in the shell is fixedly connected with a vibration unit, and the output end of the vibration unit faces the outer surface edge of the shell; a power box is fixedly connected to one side of the shell far away from the vibration unit; one side of the shell adjacent to the vibration unit is uniformly and fixedly connected with a group of electric push rods, the output ends of the electric push rods are far away from the shell, the output ends of the electric push rods are fixedly connected with electromagnetic blocks, the electromagnetic blocks are arranged vertically, and the electromagnetic blocks are electrically connected with a power box; one side of the shell adjacent to the electric push rod is fixedly connected with a group of supporting rods uniformly, and the supporting rods correspond to the positions of the electromagnetic blocks; the adjacent support rods are fixedly connected with electromagnetic rods, and the electromagnetic rods are electrically connected with the power box; the electromagnetic bar is characterized in that sleeves are sleeved on the surfaces of the electromagnetic bars and are rotationally connected with the electromagnetic bars, the axial positions of the sleeves are fixed, the inner walls of the sleeves are attached to the surfaces of the electromagnetic bars, and the sleeves are made of metal materials; one side of the shell, which is far away from the electric push rod, is fixedly connected with a cleaning plate, the cleaning plate is obliquely arranged, and the cleaning plate is in a triangular plate shape.
When the device is used, when the stress relieving treatment is carried out on a welding bead at a part with a vertical included angle of a steel structure, a vibration unit in the welding bead stress relieving device faces the welding bead at the included angle of the steel structure and is placed at the part with the welded included angle of the steel structure, so that an electromagnetic block, a sleeve and a steel plate surface are attached, a starting device is used, a controller controls a power supply box to be electrified with the electromagnetic block and an electromagnetic rod, the electromagnetic block is attached to the steel plate surface of the steel structure after being electrified, the sleeve is an iron sleeve, the electromagnetic rod assimilates the sleeve, the sleeve is attached to the steel plate surface of the steel structure, the electromagnetic rod is attached to the steel plate surface through the sleeve, the shell is attached to the steel structure surface, the attachment area between the shell and the steel structure surface is increased, and the stability of the shell during working is increased; after the shell is adsorbed, the vibration unit applies vibration load to a welding line area through an output end, so that a vibration source and a structure generate stable resonance, variable load stress is generated by utilizing the stable resonance, the welding line area generates plastic deformation to eliminate welding residual stress, after the vibration unit finishes the area treatment, the controller controls the power supply between the power supply box and the electromagnetic block to be powered off, the electromagnetic bar is still adsorbed on the surface of the steel structure through the sleeve, the magnetism of the electromagnetic block disappears, the electric push rod contracts to drive the electromagnetic block to move towards the shell until the electromagnetic block moves to a position close to the shell, the controller controls the power supply between the power supply box and the electromagnetic bar to be powered off, the power supply box and the electromagnetic block are electrified, the electromagnetic block is adsorbed on the surface of the steel structure after being powered on, the magnetism of the electromagnetic bar disappears, the electric push rod extends to drive the shell to move towards a direction far away from the electromagnetic block by taking the position of the electromagnetic block as a starting point, the electromagnetic bar moves to drive the sleeve to move after the demagnetization of the electromagnetic bar, the shell is enabled to keep a stable adsorption support position in the continuous forward movement process, the stability of the shell along the movement track of the surface of the steel structure is improved, the stress eliminating effect of a welding bead is improved, the shell is prevented from being influenced by gravity in the movement process when the stress eliminating treatment is carried out on the surface of the inclined steel structure, the movement track of the shell is deviated, and the stress eliminating effect of the welding bead is reduced; through setting up clean board, the casing motion drives clean board motion, clean board edge department is near steel construction surface motion, the welding slag that splashes when clean board is shoveled steel construction surface's attachment and is welded, increase steel construction welding surface's clean degree, thereby increase the stability of casing motion, and then increase welding bead stress relieving effect, prevent steel construction surface's attachment or welding slag contact sleeve, produce when leading to the casing motion and jolt, cause the movement track skew, influence welding bead stress relieving effect.
Preferably, the adjacent support rods are arranged in an inclined mode, and the electromagnetic rods are arranged in an inclined mode.
When in use, the adjacent supporting rods are arranged in an inclined manner, so that the electromagnetic rods are inclined towards the direction of the vibration unit, the controller controls the power failure between the power box and the electromagnetic rods, the power box and the electromagnetic blocks are electrified, the electromagnetic blocks are adsorbed on the surface of the steel structure after being electrified, the magnetism of the electromagnetic rods disappears, the electric push rod extends to drive the shell to move, the shell moves towards the direction away from the electromagnetic blocks by taking the position of the electromagnetic blocks as a starting point, the electromagnetic rods move to drive the sleeve to move after the electromagnetic rods are demagnetized, the sleeve is inclined along with the electromagnetic rods, the sleeve moves towards the direction of a welding bead of the steel structure under the influence of the inclined direction, the sleeve drives the electromagnetic rods to move towards the direction of the welding bead of the steel structure, the supporting rods and the shell move towards the direction of the welding bead of the steel structure, the tightness between the shell and the surface of the steel structure is increased, and the vibration unit is kept at the position of the welding bead in the steel structure, further, the stress relieving effect of the welding bead is increased, and the movement track deviation of the shell is prevented, so that the stress relieving effect of the welding bead is reduced; when the shell is tightly attached to the surface of the steel structure, the shell drives the supporting rod to move, the supporting rod drives the electromagnetic rod to move, and the electromagnetic rod drives the sleeve to slide on the surface of the steel structure.
Preferably, the surface of the shell is positioned between the support rod and the vibration unit and is fixedly connected with the scrapers uniformly, and the scrapers are arranged in a staggered manner.
During the use, through setting up the scraper blade, and the scraper blade is staggered arrangement, cut off the power supply between controller control power supply box and the electromagnetic bar, circular telegram between power supply box and the electromagnetic block, adsorb on steel construction surface after the electromagnetic block circular telegram, the magnetism of electromagnetic bar disappears, electric putter extends and drives the casing motion, the casing uses the electromagnetic block position to move to keeping away from the electromagnetic block direction as the starting point, the casing drives the scraper blade motion, the welding slag that the one end contact steel construction surface that the casing was kept away from to the scraper blade splashes when welding steel construction surface strikes off, thereby increase near the clean degree of welding bead, and then increase the stability of casing motion, increase welding bead stress elimination effect, prevent that the welding slag from contacting the electric magnetic path, lead to the electromagnetic block to produce in the motion process and jolt, cause casing motion trail skew, reduce welding bead stress elimination effect.
Preferably, the scrapers are all obliquely arranged, and one ends of the scrapers, which are far away from the shell, are in a sawtooth shape.
During the use, through setting up the scraper blade slope, and the one end that the casing was kept away from to the scraper blade is the cockscomb structure, the casing uses the electromagnetic block position to move as the starting point to keeping away from the electromagnetic block direction, the casing drives the scraper blade motion, the welding slag that splashes when the one end sawtooth part that the casing was kept away from to the scraper blade contacted steel structure surface welding, under the same circumstances of effort, area of contact between the object reduces, the pressure that produces between the object increases, thereby make the welding slag that will solidify at steel structure surface more easily of scraping the piece shovel off, increase near the clean degree of welding bead of steel construction, thereby increase the stability of casing motion, the welding bead increases stress elimination effect, prevent in the electromagnetic block motion process, welding slag contact electromagnetic block, lead to the electromagnetic block to produce jolt in the motion process, cause casing motion trail skew, reduce welding bead stress elimination effect.
Preferably, the baffle plates are fixedly connected between the upper scraper plate and the support rod of the shell; the position of keeping away from branch on the casing links firmly a number board, and a number board is close to electric putter, and a number board is the arc setting, and a number board is crooked outside towards the casing.
When the welding slag removing device is used, the baffle is arranged, when the vibration unit applies vibration load to a welding seam area, welding slag removed by the scraper blade moves due to the influence of vibration conduction, the baffle separates the welding slag in the movement, and the stability in the movement of the shell is improved, so that the welding bead stress removing effect is improved, the removed welding slag is prevented from moving to the position of the sleeve, and in the movement process of the shell, the sleeve is contacted with the welding slag to generate jolt or slip, so that the movement track of the shell is shifted, and the welding bead stress removing effect is reduced; because be provided with a board, and a board is the elastic plastic material, when the electromagnetism piece cuts off the power supply and the electromagnetism stick circular telegram, electric putter drives the electromagnetism piece and moves to the casing direction, the electromagnetism piece is close to one side contact and the extrusion board of casing, the part that keeps away from the casing after the extrusion board receives the extrusion moves outside the casing, the welding slag that steel construction surface lies in between a board and the casing receives a inboard surface promotion, to the direction motion of keeping away from the casing, until welding slag eduction gear motion range, increase the clean degree of device at steel construction surface motion range, thereby increase the stability in the motion of device, and then increase welding bead stress elimination effect, prevent that the electromagnetism piece from contacting the welding slag, lead to the casing motion orbit skew, reduce welding bead stress elimination effect.
Preferably, one side surface of the adjacent branch of casing has linked firmly No. two boards, and the part that No. two boards are located between electromagnetic piece and the casing is circular-arc, and No. two board surface mid portion sets up for sunken.
When the vibration unit applies vibration load to a welding seam area in a steel structure, the steel has strong vibration conduction effect, so that the surface close to a welding bead in the steel structure vibrates, dust or iron scale impurities on the surface close to the welding bead in the steel structure fall on the surface of the second plate under the influence of vibration, the dust or the iron scale impurities roll to the concave part on the surface of the second plate, the cleaning degree of the device in the working process is increased, the welding bead stress eliminating effect is increased, the falling iron scale or the impurities are prevented from attaching to the surfaces of the sleeve and the electromagnetic block, the shell is prevented from bumping in the moving process, the moving track of the shell is deviated, and the welding bead stress eliminating effect is reduced; when the electromagnetic block moves towards the direction of the shell, the electromagnet extrudes the second plate to bend the arc part in the second plate, and when the shell moves away from the direction of the electromagnetic block, the extruded and bent part of the second plate is stretched and reset; after the stress relief treatment of the welding track is finished, the impurities on the surface of the second plate are removed by a worker.
A method of eliminating residual stress in a weld bead, which is applied to any of the above-described devices for eliminating residual stress in a weld bead, and which comprises the steps of:
s1: when the weld bead of the steel structure vertical included angle part is subjected to stress relief treatment, a vibration unit in a weld bead stress relief device faces the weld bead in the included angle of the steel structure and is placed at the included angle part welded by the steel structure, an electromagnetic block, a sleeve and the surface of a steel plate are attached, a starting device is used, a controller controls a power supply box to be electrified with the electromagnetic block and an electromagnetic rod, the electromagnetic block is adsorbed on the surface of the steel structure after being electrified, the magnetism of the electromagnetic rod disappears, an electric push rod is extended to drive a shell to move, the shell moves towards the direction far away from the electromagnetic block by taking the position of the electromagnetic block as a starting point, and the electromagnetic rod moves to drive the sleeve to move after the electromagnetic rod is demagnetized;
s2: the shell moves to drive the cleaning plate to move, and the edge of the cleaning plate moves close to the surface of the steel structure; the sleeve moves towards the welding bead direction of the steel structure under the influence of the inclination direction, the sleeve drives the electromagnetic rod to move towards the welding bead direction of the steel structure, and the electromagnetic rod drives the support rod and the shell to move towards the welding bead direction of the steel structure; the shell drives the scraper to move, one end of the scraper, which is far away from the shell, contacts the surface of the steel structure and scrapes off welding slag splashed when the surface of the steel structure is welded;
s3: when the vibration unit applies vibration load to the welding seam area, the welding slag removed by the scraper plate moves due to the influence of vibration conduction, and the baffle plate separates and blocks the welding slag in the movement; dust or iron scale impurities on the surface of the steel structure close to the weld bead fall on the surface of the second plate under the influence of vibration; when the electromagnetic block moves towards the direction of the shell, the electromagnet extrudes the second plate to bend the arc part in the second plate, and when the shell moves away from the direction of the electromagnetic block, the extruded and bent part of the second plate is stretched and reset; after the stress relief treatment of the welding track is finished, the impurities on the surface of the second plate are removed by a worker.
The invention has the following beneficial effects:
1. according to the device and the method for eliminating the residual stress of the welding bead, the cleaning plate is arranged, the shell moves to drive the cleaning plate to move, the edge of the cleaning plate moves close to the surface of the steel structure, the cleaning plate removes attachments on the surface of the steel structure and welding slag splashed during welding, the cleaning degree of the welding surface of the steel structure is increased, the movement stability of the shell is increased, and the stress eliminating effect of the welding bead is further increased.
2. According to the device and the method for eliminating the residual stress of the welding bead, the adjacent support rods are arranged in an inclined mode, so that the sleeve is in an inclined state along with the electromagnetic rod, the sleeve moves towards the welding bead direction of the steel structure under the influence of the inclined direction, the sleeve drives the electromagnetic rod to move towards the welding bead direction of the steel structure, the electromagnetic rod drives the support rods and the shell to move towards the welding bead direction of the steel structure, the adhesion degree of the shell and the surface of the steel structure is increased, the vibration unit is kept at the welding bead position in the steel structure, and the welding bead stress eliminating effect is further increased.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a flow chart of a weld bead residual stress relief method of the present invention;
FIG. 2 is a perspective view of the residual stress relief device of the weld bead of the present invention;
FIG. 3 is a left side view of the weld bead residual stress relief apparatus of the present invention;
FIG. 4 is a schematic structural view of a weld bead residual stress relief device of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 3 at A;
in the figure: the cleaning device comprises a shell 1, a vibration unit 11, an electric push rod 12, a power supply box 13, an electromagnetic block 14, a support rod 15, an electromagnetic rod 16, a sleeve 17, a cleaning plate 2, a scraper 3, a baffle 4, a first plate 5 and a second plate 6.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 5, the device and the method for eliminating the residual stress of the weld bead according to the present invention comprises a housing 1, a vibration unit 11, an electric push rod 12, a power box 13 and a controller; the controller controls the power box 13 to be electrified; a vibration unit 11 is fixedly connected to the position, close to the outer surface edge, in the shell 1, and the output end of the vibration unit 11 faces the outer surface edge of the shell 1; a power box 13 is fixedly connected to one side of the shell 1 far away from the vibration unit 11; one side of the shell 1 adjacent to the vibration unit 11 is uniformly fixedly connected with a group of electric push rods 12, the output ends of the electric push rods 12 are far away from the shell 1, the output ends of the electric push rods 12 are fixedly connected with electromagnetic blocks 14, the electromagnetic blocks 14 are arranged vertically, and the electromagnetic blocks 14 are electrically connected with a power box 13; one side of the shell 1 adjacent to the electric push rod 12 is fixedly connected with a group of supporting rods 15 uniformly, and the supporting rods 15 correspond to the positions of the electromagnetic blocks 14; the adjacent support rods 15 are fixedly connected with electromagnetic rods 16, and the electromagnetic rods 16 are electrically connected with the power box 13; the surface of the electromagnetic rod 16 is sleeved with a sleeve 17, the sleeve 17 is rotatably connected with the electromagnetic rod 16, the axial position of the sleeve 17 is fixed, the inner wall of the sleeve 17 is attached to the surface of the electromagnetic rod 16, and the sleeve 17 is made of metal; one side of the shell 1, which is far away from the electric push rod 12, is fixedly connected with a cleaning plate 2, the cleaning plate 2 is obliquely arranged, and the cleaning plate 2 is in a triangular plate shape.
When in use, when the stress relieving treatment is carried out on the welding bead at the part with the vertical included angle of the steel structure, the vibration unit 11 in the welding bead stress relieving device faces the welding bead at the included angle of the steel structure and is placed at the part with the welded included angle of the steel structure, so that the electromagnetic block 14 and the sleeve 17 are attached to the surface of the steel plate, the device is started, the controller controls the power supply box 13 to be electrified with the electromagnetic block 14 and the electromagnetic rod 16, the electromagnetic block 14 is adsorbed to the surface of the steel plate with the steel structure after being electrified, the electromagnetic rod 16 is adsorbed to the sleeve 17 after being electrified, the sleeve 17 in the invention is an iron sleeve 17, the electromagnetic rod 16 assimilates the sleeve 17, the sleeve 17 is attached to the surface of the steel plate with the steel structure, so that the electromagnetic rod 16 is adsorbed to the surface of the steel plate through the sleeve 17, therefore, the shell 1 is adsorbed on the surface of the steel structure, the adsorption area between the shell 1 and the surface of the steel structure is increased, and the stability of the shell 1 in working is improved; after the shell 1 is adsorbed, the vibration unit 11 applies vibration load to a welding seam area through an output end, so that stable resonance occurs between a vibration source and a structure, variable load stress is generated by utilizing the stable resonance, the welding seam area generates plastic deformation to eliminate welding residual stress, after the vibration unit 11 finishes processing the area, the controller controls the power supply box 13 and the electromagnetic block 14 to be powered off, the electromagnetic bar 16 is still adsorbed on the surface of the steel structure through the sleeve 17, the magnetism of the electromagnetic block 14 disappears, the electric push rod 12 contracts to drive the electromagnetic block 14 to move towards the shell 1 until the electromagnetic block 14 moves to a position close to the shell 1, the controller controls the power supply box 13 and the electromagnetic bar 16 to be powered off, the power supply box 13 and the electromagnetic block 14 are powered on, the electromagnetic block 14 is adsorbed on the surface of the steel structure after being powered on, the magnetism of the electromagnetic bar 16 disappears, the electric push rod 12 extends to drive the shell 1 to move, the shell 1 moves towards a direction far away from the electromagnetic block 14 by taking the position of the electromagnetic block 14 as a starting point, after the electromagnetic rod 16 is demagnetized, the electromagnetic rod 16 moves to drive the sleeve 17 to move, so that the shell 1 is kept at a stable adsorption support position in the continuous forward movement process, the stability of the shell 1 along the movement track of the surface of the steel structure is improved, the welding bead stress eliminating effect is improved, and the phenomenon that when the stress eliminating treatment is carried out on the inclined surface of the steel structure, the shell 1 is influenced by gravity in the movement process, so that the movement track of the shell 1 is deviated, and the welding bead stress eliminating effect is reduced; through setting up cleaning plate 2, 1 motion of casing drives cleaning plate 2 motion, 2 edges of cleaning plate move near steel structure surface, the welding slag that splashes when cleaning plate 2 shovels steel structure surface's attachment and welding, increase steel structure welding surface's clean degree, thereby increase the stability of 1 motion of casing, and then increase welding bead stress elimination effect, prevent steel structure surface's attachment or welding slag contact sleeve 17, produce when leading to the motion of casing 1 and jolt, cause the movement track skew, influence welding bead stress elimination effect.
In one embodiment of the present invention, the adjacent struts 15 are arranged obliquely, and the electromagnetic bar 16 is arranged obliquely.
When the device is used, the adjacent supporting rods 15 are arranged in an inclined mode, the electromagnetic rods 16 are inclined towards the direction of the vibration unit 11, the controller controls the power between the power box 13 and the electromagnetic rods 16 to be powered off, the power between the power box 13 and the electromagnetic block 14 is powered on, the electromagnetic block 14 is adsorbed on the surface of a steel structure after being powered on, the magnetism of the electromagnetic rods 16 disappears, the electric push rod 12 extends to drive the shell 1 to move, the shell 1 moves towards the direction far away from the electromagnetic block 14 by taking the position of the electromagnetic block 14 as a starting point, the electromagnetic rods 16 move to drive the sleeves 17 to move after the electromagnetic rods 16 disappear, the sleeves 17 are also inclined with the electromagnetic rods 16 due to the fact that the electromagnetic rods 16 are inclined, the sleeves 17 move towards the direction of a welding bead of the steel structure under the influence of the inclined direction, the sleeves 17 drive the electromagnetic rods 16 to move towards the welding bead direction of the steel structure, and the electromagnetic rods 16 drive the supporting rods 15 and the shell 1 to move towards the welding bead direction of the steel structure, the tightness of the shell 1 and the surface of the steel structure is increased, so that the vibration unit 11 is kept at the position of a welding bead in the steel structure, the stress relieving effect of the welding bead is further increased, and the phenomenon that the motion trail of the shell 1 deviates, so that the stress relieving effect of the welding bead is reduced, is prevented; when the shell 1 is tightly attached to the surface of the steel structure, the shell 1 drives the supporting rod 15 to move, the supporting rod 15 drives the electromagnetic rod 16 to move, and the electromagnetic rod 16 drives the sleeve 17 to slide on the surface of the steel structure.
As an embodiment of the invention, the scrapers 3 are uniformly and fixedly connected to the surface of the shell 1 between the supporting rod 15 and the vibrating unit 11, and the scrapers 3 are staggered.
When the device is used, the scrapers 3 are arranged in a staggered manner, the controller controls the power supply between the power supply box 13 and the electromagnetic bar 16 to be powered off, the power supply box 13 and the electromagnetic block 14 are powered on, the electromagnetic block 14 is adsorbed on the surface of a steel structure after being powered on, the magnetism of the electromagnetic bar 16 disappears, the electric push rod 12 extends to drive the shell 1 to move, the shell 1 moves towards the direction far away from the electromagnetic block 14 by taking the position of the electromagnetic block 14 as a starting point, the shell 1 drives the scrapers 3 to move, one end of each scraper 3 far away from the shell 1 contacts the surface of the steel structure and scrapes off welding slag splashed when the surface of the steel structure is welded, so that the cleaning degree near a welding bead is increased, and then increase the stability of casing 1 motion, increase welding bead stress relieving effect, prevent that welding slag from contacting electromagnetism piece 14, lead to electromagnetism piece 14 to produce jolting in the motion process, cause casing 1 movement track skew, reduce welding bead stress relieving effect.
In one embodiment of the present invention, the scrapers 3 are all obliquely arranged, and one end of each scraper 3 away from the housing 1 is serrated.
When in use, the scraper 3 is arranged to be inclined, the end of the scraper 3, far away from the shell 1, is in a sawtooth shape, the shell 1 moves towards the direction far away from the electromagnetic block 14 by taking the position of the electromagnetic block 14 as a starting point, the shell 1 drives the scraper 3 to move, the sawtooth part of the end of the scraper 3, far away from the shell 1, is in contact with welding slag splashed when the surface of a steel structure is welded, under the same acting force, the contact area between the objects is reduced, the pressure generated between the objects is increased, thereby leading the scraping block to more easily remove the welding slag solidified on the surface of the steel structure, increasing the cleaning degree near the welding bead of the steel structure, thereby increasing the stability of the movement of the shell 1, increasing the stress relief effect of the weld bead, preventing the electromagnetic block 14 from moving, the welding slag contacts the electromagnetic block 14, so that the electromagnetic block 14 bumps in the movement process, the movement track of the shell 1 deviates, and the stress eliminating effect of the welding bead is reduced.
As an embodiment of the invention, the baffle plates 4 are fixedly connected between the scraper 3 and the support rod 15 on the shell 1; keep away from the position of branch 15 on the casing 1 and linked firmly a board 5, and a board 5 is close to electric putter 12, and a board 5 sets up for the arc, and a board 5 is crooked outside towards casing 1.
When the welding device is used, the baffle 4 is arranged, when the vibration unit 11 applies vibration load to a welding seam area, welding slag removed by the scraper 3 moves due to the influence of vibration conduction, the baffle 4 separates the welding slag in the movement and increases the stability of the shell 1 in the movement, so that the stress eliminating effect of a welding bead is increased, the removed welding slag is prevented from moving to the position of the sleeve 17, and in the movement process of the shell 1, the sleeve 17 is contacted with the welding slag to generate jolt or slip, so that the movement track of the shell 1 deviates, and the stress eliminating effect of the welding bead is reduced; because be provided with a board 5, and a board 5 is the elastic plastic material, when electromagnetism piece 14 outage and electromagnetic rod 16 circular telegram, electric putter 12 drives electromagnetism piece 14 and moves to casing 1 direction, electromagnetism piece 14 is close to one side contact and the extrusion of casing 1 a board 5, the part of keeping away from casing 1 after 5 is extrudeed moves to casing 1 is outer to a board, the welding slag that steel construction surface is located between a board 5 and casing 1 receives a 5 internal surfaces promotion, to the direction motion of keeping away from casing 1, until welding slag eduction gear motion range, increase the clean degree of device at steel construction surface motion range, thereby increase the stability in the motion of device, and then increase welding bead stress elimination effect, prevent that electromagnetism piece 14 from contacting the welding slag, lead to casing 1 movement path skew, reduce welding bead stress elimination effect.
As an embodiment of the invention, a second plate 6 is fixedly connected to one side surface of the shell 1 adjacent to the support rod 15, a part of the second plate 6, which is located between the electromagnetic block 14 and the shell 1, is in a circular arc shape, and the middle part of the surface of the second plate 6 is in a concave arrangement.
When in use, the second plate 6 is arranged, the part of the second plate 6, which is positioned between the electromagnetic block 14 and the shell 1, is in an arc shape, the middle part of the surface of the second plate 6 is in a concave shape, the second plate 6 is made of elastic rubber, when the vibration unit 11 applies a vibration load to the weld region in the steel structure, since the steel has a strong effect of transmitting vibration, so that the surface of the steel structure close to the welding bead generates vibration, dust or iron scale impurities on the surface of the steel structure close to the welding bead fall on the surface of the second plate 6 under the influence of the vibration, thereby rolling down to the concave part of the surface of the second plate 6, increasing the cleaning degree of the device in the working process, therefore, the stress eliminating effect of the weld bead is improved, and the phenomenon that falling iron scale or impurities are attached to the surfaces of the sleeve 17 and the electromagnetic block 14 to cause the shell 1 to generate jolt in the movement process, so that the movement track of the shell 1 deviates, and the stress eliminating effect of the weld bead is reduced; when the electromagnetic block 14 moves towards the direction of the shell 1, the electromagnet extrudes the second plate 6 to bend the arc part in the second plate 6, and when the shell 1 moves away from the direction of the electromagnetic block 14, the extruded bent part of the second plate 6 is stretched and reset; after the stress relief treatment of the welding track is finished, the worker removes impurities on the surface of the second plate 6.
A method of eliminating residual stress in a weld bead, which is applied to any of the above-described devices for eliminating residual stress in a weld bead, and which comprises the steps of:
s1: when the stress elimination treatment is carried out on a welding bead at a part with a vertical included angle of a steel structure, a vibration unit 11 in a welding bead stress elimination device faces the welding bead at the included angle of the steel structure and is placed at the part with the welded included angle of the steel structure, an electromagnetic block 14 and a sleeve 17 are attached to the surface of a steel plate, a starting device is used, a controller controls a power supply box 13 to be electrified with the electromagnetic block 14 and an electromagnetic rod 16, the electromagnetic block 14 is adsorbed on the surface of the steel structure after being electrified, the magnetism of the electromagnetic rod 16 disappears, an electric push rod 12 extends to drive a shell 1 to move, the shell 1 moves in the direction far away from the electromagnetic block 14 by taking the position of the electromagnetic block 14 as a starting point, and the electromagnetic rod 16 moves to drive the sleeve 17 to move after the magnetism of the electromagnetic rod 16 disappears;
s2: the shell 1 moves to drive the cleaning plate 2 to move, and the edge of the cleaning plate 2 moves close to the surface of the steel structure; the sleeve 17 moves towards the welding bead direction of the steel structure under the influence of the inclination direction, the sleeve 17 drives the electromagnetic rod 16 to move towards the welding bead direction of the steel structure, and the electromagnetic rod 16 drives the support rod 15 and the shell 1 to move towards the welding bead direction of the steel structure; the shell 1 drives the scraper 3 to move, one end of the scraper 3, which is far away from the shell 1, contacts the surface of the steel structure and scrapes off welding slag splashed when the surface of the steel structure is welded;
s3: when the vibration unit 11 applies vibration load to the welding seam area, the welding slag removed by the scraper 3 moves due to the influence of vibration conduction, and the baffle 4 separates the welding slag in the movement; dust or iron scale impurities on the surface of the steel structure close to the weld bead fall on the surface of the second plate 6 under the influence of vibration; when the electromagnetic block 14 moves towards the direction of the shell 1, the electromagnet extrudes the second plate 6 to bend the arc part in the second plate 6, and when the shell 1 moves away from the direction of the electromagnetic block 14, the extruded bent part of the second plate 6 is stretched and reset; after the stress relief treatment of the welding track is finished, the worker removes impurities on the surface of the second plate 6.
The specific working process is as follows:
the controller controls the power supply box 13 to be electrified with the electromagnetic block 14 and the electromagnetic rod 16, the electromagnetic block 14 is adsorbed on the surface of the steel plate of the steel structure after being electrified, and the sleeve 17 is adsorbed after the electromagnetic rod 16 is electrified; after the shell 1 is adsorbed, the vibration unit 11 applies vibration load to a welding seam area through an output end, after the vibration unit 11 finishes processing the area, the controller controls the power supply between the power supply box 13 and the electromagnetic block 14 to be powered off, the electromagnetic bar 16 is still adsorbed to the surface of a steel structure through the sleeve 17, the magnetism of the electromagnetic block 14 disappears, the electric push rod 12 contracts to drive the electromagnetic block 14 to move towards the shell 1 until the electromagnetic block 14 moves to a position close to the shell 1, the controller controls the power supply between the power supply box 13 and the electromagnetic bar 16 to be powered off, the power supply box 13 and the electromagnetic block 14 are powered on, the electromagnetic block 14 is adsorbed to the surface of the steel structure after being powered on, the magnetism of the electromagnetic bar 16 disappears, the electric push rod 12 extends to drive the shell 1 to move, the shell 1 moves towards a direction far away from the electromagnetic block 14 by taking the position of the electromagnetic block 14 as a starting point, and the electromagnetic bar 16 moves to drive the sleeve 17 to move after the magnetism of the electromagnetic bar 16 disappears; the shell 1 moves to drive the cleaning plate 2 to move, the edge of the cleaning plate 2 moves close to the surface of the steel structure, and the cleaning plate 2 removes attachments on the surface of the steel structure and welding slag splashed during welding; the sleeve 17 moves towards the welding bead direction of the steel structure under the influence of the inclination direction, the sleeve 17 drives the electromagnetic rod 16 to move towards the welding bead direction of the steel structure, and the electromagnetic rod 16 drives the support rod 15 and the shell 1 to move towards the welding bead direction of the steel structure; the shell 1 drives the scraper 3 to move, one end of the scraper 3, which is far away from the shell 1, contacts the surface of the steel structure and scrapes off welding slag splashed when the surface of the steel structure is welded; when the vibration unit 11 applies vibration load to the welding seam area, the welding slag removed by the scraper 3 moves due to the influence of vibration conduction, and the baffle 4 separates the welding slag in the movement; dust or iron scale impurities on the surface of the steel structure close to the weld bead fall on the surface of the second plate 6 under the influence of vibration, and then fall on the concave part of the surface of the second plate 6; when the electromagnetic block 14 moves towards the direction of the shell 1, the electromagnet extrudes the second plate 6 to bend the arc part in the second plate 6, and when the shell 1 moves away from the direction of the electromagnetic block 14, the extruded bent part of the second plate 6 is stretched and reset; after the stress relief treatment of the welding track is finished, the worker removes impurities on the surface of the second plate 6.
The front, the back, the left, the right, the upper and the lower are all based on the figure 2 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A welding bead residual stress relieving device is characterized in that: comprises a shell (1), a vibration unit (11), an electric push rod (12), a power box (13) and a controller; the controller controls the power box (13) to be electrified; a vibration unit (11) is fixedly connected to the position, close to the outer surface edge, in the shell (1), and the output end of the vibration unit (11) faces the outer surface edge of the shell (1); a power box (13) is fixedly connected to one side of the shell (1) far away from the vibration unit (11); one side of the shell (1) adjacent to the vibration unit (11) is uniformly fixedly connected with a group of electric push rods (12), the output ends of the electric push rods (12) are far away from the shell (1), the output ends of the electric push rods (12) are fixedly connected with electromagnetic blocks (14), the electromagnetic blocks (14) are arranged in a mutually perpendicular mode, and the electromagnetic blocks (14) are electrically connected with a power supply box (13); one side of the shell (1) adjacent to the electric push rod (12) is fixedly connected with a group of supporting rods (15) uniformly, and the supporting rods (15) correspond to the positions of the electromagnetic blocks (14); the adjacent support rods (15) are fixedly connected with electromagnetic rods (16), and the electromagnetic rods (16) are electrically connected with the power box (13); the electromagnetic bar is characterized in that the surface of the electromagnetic bar (16) is sleeved with a sleeve (17), the sleeve (17) is rotatably connected with the electromagnetic bar (16), the axial position of the sleeve (17) is fixed, the inner wall of the sleeve (17) is attached to the surface of the electromagnetic bar (16), and the sleeve (17) is made of metal; one side of the shell (1) far away from the electric push rod (12) is fixedly connected with a cleaning plate (2), the cleaning plate (2) is obliquely arranged, and the cleaning plate (2) is in a triangular plate shape.
2. The weld bead residual stress relief device according to claim 1, wherein: the adjacent supporting rods (15) are arranged in an inclined mode, and the electromagnetic rods (16) are arranged in an inclined mode.
3. The bead residual stress relief device according to claim 2, wherein: the surface of the shell (1) is positioned between the support rod (15) and the vibration unit (11) and is evenly fixedly connected with the scraping plates (3), and the scraping plates (3) are arranged in a staggered mode.
4. The bead residual stress relief device according to claim 3, wherein: the scraping plates (3) are obliquely arranged, and one ends, far away from the shell (1), of the scraping plates (3) are saw-toothed.
5. The weld bead residual stress relief device according to claim 4, wherein: baffle plates (4) are fixedly connected between the upper scraper (3) and the support rod (15) of the shell (1); the position of keeping away from branch (15) on casing (1) has linked firmly a board (5), and a board (5) is close to electric putter (12), and a board (5) sets up for the arc, and a board (5) is crooked outside towards casing (1).
6. The weld bead residual stress relief device according to claim 5, wherein: one side surface of the adjacent supporting rod (15) of the shell (1) is fixedly connected with a second plate (6), the part, located between the electromagnetic block (14) and the shell (1), of the second plate (6) is arc-shaped, and the middle part of the surface of the second plate (6) is sunken.
7. A method for eliminating residual stress of a welding bead is characterized in that: the method is adapted for use with the weld bead residual stress relief apparatus of any of the preceding claims 1-6, and includes the steps of:
s1: when stress relief processing is carried out on a welding bead of a steel structure vertical included angle part, a vibration unit (11) in a welding bead stress relief device faces the welding bead in the steel structure included angle and is placed at the steel structure welding included angle part, an electromagnetic block (14) and a sleeve (17) are attached to the surface of a steel plate, a starting device is used, a controller controls a power supply box (13) to be electrified with the electromagnetic block (14) and an electromagnetic rod (16), the electromagnetic block (14) is adsorbed on the surface of the steel structure after being electrified, the magnetism of the electromagnetic rod (16) disappears, an electric push rod (12) extends to drive a shell (1) to move, the shell (1) moves towards the direction far away from the electromagnetic block (14) by taking the position of the electromagnetic block (14) as a starting point, and the electromagnetic rod (16) moves to drive the sleeve (17) to move after the electromagnetic rod (16) is demagnetized;
s2: the shell (1) moves to drive the cleaning plate (2) to move, and the edge of the cleaning plate (2) moves close to the surface of the steel structure; the sleeve (17) moves towards the welding bead direction of the steel structure under the influence of the inclination direction, the sleeve (17) drives the electromagnetic rod (16) to move towards the welding bead direction of the steel structure, and the electromagnetic rod (16) drives the support rod (15) and the shell (1) to move towards the welding bead direction of the steel structure; the shell (1) drives the scraper (3) to move, one end of the scraper (3) far away from the shell (1) contacts the surface of the steel structure and scrapes off welding slag splashed when the surface of the steel structure is welded;
s3: when the vibration unit (11) applies vibration load to the welding seam area, welding slag removed by the scraper (3) moves due to the influence of vibration conduction, and the baffle (4) separates and blocks the welding slag in the movement; dust or iron scale impurities on the surface of the steel structure close to the weld bead fall on the surface of the second plate (6) under the influence of vibration; when the electromagnetic block (14) moves towards the direction of the shell (1), the electromagnet extrudes the second plate (6) to bend the arc part in the second plate (6), and when the shell (1) moves away from the direction of the electromagnetic block (14), the extruded bent part of the second plate (6) is stretched and reset; after the stress relief treatment of the welding track is finished, the impurities on the surface of the second plate (6) are removed by workers.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114737045A (en) * | 2022-04-09 | 2022-07-12 | 邹琪 | Welding bead residual stress relieving device and method |
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