A welding auxiliary positioning device for processing steel structure bridge materials

Abstract

The present invention discloses a welding auxiliary positioning device for the processing of steel structure bridge materials. The present invention relates to the technical field of welding auxiliary positioning, and includes a tank body. A rapid cooling prevention mechanism is fixedly connected to the middle position of the surface of the tank body. An accumulation prevention mechanism is fixedly connected to a position close to the edge of the inner side surface of the tank body. The rapid cooling prevention mechanism includes an inner tank wall. A connecting wall is fixedly connected to the bottom of the inner side surface of the inner tank wall. A docking wall is fixedly connected to the top of the connecting wall. A mesh body is fixedly connected to the top of the inner side surface of the docking wall. The accumulation prevention mechanism includes a mechanism wall. By the combined use of mechanisms such as the rapid cooling prevention mechanism, the regulation component, and the accumulation prevention mechanism, the welding auxiliary positioning device for the processing of steel structure bridge materials solves the problems that during the tack welding of circumferential seams, stress accumulation deformation of the pipe body is likely to occur, and the rapid cooling of the weld points results in a high quenching sensitivity of the workpiece.

Description

Technical Field

[0001] The present invention relates to the technical field of welding auxiliary positioning equipment, and particularly to a welding auxiliary positioning device for processing steel structure bridge materials. Background Art

[0002] Spot welding (tack welding) is to position the components to be welded together as required, and usually a suitable fixture is needed to fix them on the tooling. As a temporary method, spot welding fixes the components in place and positions them until the final welding is completed. Usually, spot welding is a short weld. In any structure, multiple spot welds need to be made at a certain distance to fix the components together. One advantage of this temporary assembly process is that if it is found that the alignment of the final welding is incorrect, it can be easily disassembled, reassembled, and spot welded again. If the final welding is carried out while the components are still clamped in the fixture, the spot welds must keep the components in place and be able to resist considerable stress to ensure that the components do not undergo position changes that affect the accuracy. Based on the above description, the inventor of the present invention found that the existing welding auxiliary positioning devices mainly have the following deficiencies, for example:

[0003] When performing tack welding on circumferential seams, it is easy to cause stress accumulation and deformation of the pipe body, and the rapid cooling of the weld spots results in a high quenching sensitivity of the workpiece. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a welding auxiliary positioning device for processing steel structure bridge materials, which solves the problems of easy stress accumulation and deformation of the pipe body when performing tack welding on circumferential seams, and the high quenching sensitivity of the workpiece caused by the rapid cooling of the weld spots.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A welding auxiliary positioning device for processing steel structure bridge materials, including a tank body. The middle position on the surface of the tank body is fixedly connected with a fast-cooling prevention mechanism, and the position near the edge of the inner side of the tank body is fixedly connected with an accumulation prevention mechanism. The fast-cooling prevention mechanism includes an inner groove wall. The bottom of the inner side of the inner groove wall is fixedly connected with a connecting wall, the top of the connecting wall is fixedly connected with a butt wall, and the top of the inner side of the butt wall is fixedly connected with a mesh body. In this device, bridge pipes are input from both sides of the tank body. The second motor drives the rubber wheels to rotate, and the pipes are conveyed into the tank body through friction. The detector detects the distance when the pipes are centered. When the distance between the pipes is appropriate, the welding torch melts the welding wire and performs positioning and spot welding on the pipe gap. The thinner connecting wall is located in the middle of the gap. The welding wire is wound in the inner groove wall, which can effectively prevent the welding wires from winding around each other, thereby realizing the auxiliary positioning welding of the bridge pipes;

[0006] The anti-accumulation mechanism includes a mechanism wall, on the inner side of which a sliding ring is slidably connected. A connecting pipe is fixedly connected to the surface of the sliding ring, and a second motor is fixedly connected to the bottom end of the connecting pipe. A rotating shaft at the output end of the second motor is fixedly connected with a rubber wheel. When the bridge pipe enters the tank through the friction of the rubber wheel, the pipes are butted at a position close to the welding torch. After the welding torch performs single-point welding, the output end of the welding torch is electrically connected to the input end of the first motor. The welding torch controls the first motor to drive the magnetic strip to rotate by one-third of a circumferential angle. Due to the magnetic attraction between the magnetic strip and the magnetic ball, the sliding ring slides on the inner side of the mechanism wall, and the pipe is reciprocally driven to rotate and three-point welding is achieved. The mutual restraint between the welding points can effectively prevent the stress accumulation and deformation of the pipe body.

[0007] Preferably, a base is fixedly connected to the bottom of the tank, holes are provided on both sides of the tank, holes are provided inside the connecting wall, and an air pump is fixedly connected to the surface of the connecting wall.

[0008] Preferably, a regulating component is fixedly connected to the top of the connecting wall. The regulating component includes a first motor, the surface of which is fixedly connected to the surface of the docking wall. A hole is provided on the inner side of the connecting wall. The air pump inputs the atmosphere on the inner side of the tank into the docking wall through the connecting wall. When the welding torch performs tack welding on the weld seam, molten solid impurities will splash into the docking wall. The flame retardant strip limits the molten solid matter and at the same time prevents it from burning. The airflow generated by the air pump passes through the molten material and absorbs the temperature of the molten material. The airflow with increased temperature flows out through the mesh body and the weld seam. The input of the atmosphere and heat transfer achieve the purpose of using the heat of the molten solid impurities to prevent the weld point from cooling rapidly.

[0009] Preferably, a magnetic strip is fixedly connected to the rotating shaft at the output end of the first motor, a flame retardant strip is fixedly connected to the inner side of the docking wall, and a hole is provided above the surface of the docking wall.

[0010] Preferably, a filter screen is fixedly connected to the upper position on the inner side of the connecting wall. The surface of the inner groove wall is fixedly connected to the middle position of the tank surface, and welding wire is placed on the inner side of the inner groove wall.

[0011] Preferably, a welding torch is fixedly connected to the inner side of the inner groove wall. The input end of the welding torch is communicated with the surface of the welding wire, and a detector is fixedly connected to the top of the inner side of the inner groove wall.

[0012] Preferably, a magnetic ball is fixedly connected to the inner side of the sliding ring close to the connecting pipe. The number of the rubber wheels is two and they are symmetrically distributed with the second motor as the center. By the combined use of mechanisms such as the anti-rapid cooling mechanism, the regulating component, and the anti-accumulation mechanism, the problems of stress accumulation and deformation of the pipe body easily caused during tack welding of the circumferential weld, and the high quenching sensitivity of the workpiece caused by the rapid cooling of the weld point are solved.

[0013] Preferably, a temperature controller is fixedly connected to the inner side of the rubber wheel near the second motor, and an expansion gel is fixedly connected to the inner side of the rubber wheel near the edge. When the air flow passes through the mesh body, it is dispersed and divided into several small air flows. The filter screen can prevent the molten impurities on the inner side of the docking wall from entering the connecting wall and causing blockage. When the pipe needs to be rotated, the input end of the temperature controller is fixedly connected to the output end of the welding torch. The temperature controller raises the atmosphere temperature inside the rubber wheel, and the expansion gel squeezes the rubber wheel, increasing the extrusion force of the rubber wheel on the surface of the pipe, so that the clamping during the rotation of the pipe is more reliable.

[0014] The present invention provides a welding auxiliary positioning device for processing steel structure bridge materials. It has the following beneficial effects:

[0015] (1) For the welding auxiliary positioning device for processing steel structure bridge materials, through the coordinated use of mechanisms such as an anti-fast cooling mechanism, a regulation component, and an anti-accumulation mechanism, it solves the problems of easy stress accumulation and deformation of the pipe body during tack welding of circumferential seams, and high quenching sensitivity of the workpiece caused by the rapid cooling of the weld spots.

[0016] (2) For the welding auxiliary positioning device for processing steel structure bridge materials, in this device, bridge pipes are input on both sides of the tank body. The second motor drives the rubber wheel to rotate, and the pipe is conveyed into the tank body through friction. The detector detects the distance when the pipes are centered. When the distance between the pipes is appropriate, the welding torch melts the welding wire and performs positioning spot welding on the pipe gap. The thinner connecting wall is located in the middle of the gap. The welding wire is wound in the inner groove wall, which can effectively prevent the welding wires from winding around each other, thus realizing the auxiliary positioning welding of the bridge pipes.

[0017] (3) For the welding auxiliary positioning device for processing steel structure bridge materials, holes are provided on the inner side of the connecting wall. The air pump inputs the atmosphere inside the tank body into the docking wall through the connecting wall. When the welding torch performs tack welding on the weld seam, molten solid impurities will splash into the docking wall. The flame retardant strip limits the molten solid substances and at the same time prevents them from burning. The air flow generated by the air pump passes through the molten substances and absorbs the temperature of the molten materials. The air flow with increased temperature flows out through the mesh body and the weld seam. The input of the atmosphere and heat transfer achieve the purpose of avoiding the rapid cooling of the weld spots by using the heat of the molten solid impurities.

[0018] (4) For the welding auxiliary positioning device used in the processing of steel structure bridge materials, when the bridge pipe enters the tank through the friction of the rubber wheels, the pipes are butted at the position close to the welding torch. After the welding torch performs single-point welding, the output end of the welding torch is electrically connected to the input end of the first motor. The welding torch controls the first motor to drive the magnetic strip to rotate by one-third of a circumferential angle. Due to the magnetic attraction between the magnetic strip and the magnetic ball, the slip ring slides on the inner side of the mechanism wall, and the pipe is reciprocally driven to rotate and achieve three-point welding. The mutual restraint between the welding points can effectively prevent the stress accumulation and deformation of the pipe body.

[0019] (5) For the welding auxiliary positioning device used in the processing of steel structure bridge materials, when the air flow passes through the mesh body, it is dispersed and divided into several fine air flows. The filter screen can prevent the molten impurities on the inner side of the butting wall from entering the connecting wall and causing blockage. When it is necessary to rotate the pipe, the input end of the temperature controller is fixedly connected to the output end of the welding torch. The temperature controller raises the atmosphere temperature inside the rubber wheel, and the expanding gel squeezes the rubber wheel, increasing the extrusion force of the rubber wheel on the pipe surface, so that the clamping during the rotation of the pipe is more reliable. Brief Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the whole of the present invention;

[0021] Figure 2 It is a schematic structural diagram of the interior of the present invention;

[0022] Figure 3 It is a schematic structural diagram of the anti-fast-cooling mechanism of the present invention;

[0023] Figure 4 It is a schematic structural diagram of the regulation component of the present invention;

[0024] Figure 5 It is a schematic structural diagram of the whole anti-accumulation mechanism of the present invention;

[0025] Figure 6 It is a schematic structural diagram of a part of the anti-accumulation mechanism of the present invention.

[0026] In the figure: 1, base; 2, tank; 3, anti-fast-cooling mechanism; 31, inner tank wall; 32, welding wire; 33, welding torch; 34, detector; 35, connecting wall; 36, air pump; 4, regulation component; 41, butting wall; 42, first motor; 43, magnetic strip; 44, flame retardant strip; 45, mesh body; 46, filter screen; 5, anti-accumulation mechanism; 51, mechanism wall; 52, slip ring; 53, magnetic ball; 54, connecting pipe; 55, second motor; 56, rubber wheel; 57, temperature controller; 58, expanding gel. Detailed Embodiments

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] As Figure 1-6 shown, the present invention provides a technical solution: a welding auxiliary positioning device for processing steel structure bridge materials, including a tank body 2. A base 1 is fixedly connected to the bottom of the tank body 2. Holes are provided on both sides of the tank body 2. A hole is provided inside the connecting wall 35. An air pump 36 is fixedly connected to the surface of the connecting wall 35. A fast-cooling prevention mechanism 3 is fixedly connected to the middle position of the surface of the tank body 2. An accumulation prevention mechanism 5 is fixedly connected to the position near the edge of the inner side surface of the tank body 2. The fast-cooling prevention mechanism 3 includes an inner groove wall 31. A welding torch 33 is fixedly connected to the inner side surface of the inner groove wall 31. The input end of the welding torch 33 is communicated with the surface of the welding wire 32. A detector 34 is fixedly connected to the top of the inner side surface of the inner groove wall 31. When the air flow passes through the mesh body 45, it is dispersed and divided into several small air flows. The filter screen 46 can prevent the molten impurities on the inner side surface of the docking wall 41 from entering the connecting wall 35 and causing blockage. When it is necessary to rotate the pipe, the input end of the temperature controller 57 is fixedly connected to the output end of the welding torch 33. The temperature controller 57 raises the atmosphere temperature inside the rubber wheel 56, and the expansion gel 58 squeezes the rubber wheel 56, increasing the extrusion force of the rubber wheel 56 on the surface of the pipe, so that the clamping during the rotation of the pipe is more reliable. A connecting wall 35 is fixedly connected to the bottom of the inner side surface of the inner groove wall 31. A filter screen 46 is fixedly connected to the upper position of the inner side surface of the connecting wall 35. The surface of the inner groove wall 31 is fixedly connected to the middle position of the surface of the tank body 2.

[0029] On the inner side of the inner groove wall 31, a welding wire 32 is placed. At the top of the connecting wall 35, a regulating component 4 is fixedly connected. The regulating component 4 includes a first motor 42. The rotating shaft at the output end of the first motor 42 is fixedly connected with a magnetic strip 43. On the inner side of the docking wall 41, a flame retardant strip 44 is fixedly connected. At the upper position on the surface of the docking wall 41, there is a hole. The surface of the first motor 42 is fixedly connected with the surface of the docking wall 41. At the top of the connecting wall 35, a docking wall 41 is fixedly connected. At the top of the inner side of the docking wall 41, a mesh body 45 is fixedly connected. The anti-accumulation mechanism 5 includes a mechanism wall 51. A sliding ring 52 is slidably connected to the inner side of the mechanism wall 51. At the position of the sliding ring 52 close to the connecting pipe 54 on the inner side, a magnetic ball 53 is fixedly connected. The number of rubber wheels 56 is two. By the combined use of mechanisms such as the anti-rapid cooling mechanism, the regulating component, and the anti-accumulation mechanism, when performing tack welding on the circumferential weld, it is easy to cause stress accumulation and deformation of the pipe body, and the rapid cooling of the weld spot results in high quenching sensitivity of the workpiece. And they are symmetrically distributed with the second motor 55 as the center. The surface of the sliding ring 52 is fixedly connected with a connecting pipe 54. The bottom end of the connecting pipe 54 is fixedly connected with a second motor 55. The rotating shaft at the output end of the second motor 55 is fixedly connected with a rubber wheel 56. At the position of the rubber wheel 56 close to the second motor 55 on the inner side, a temperature controller 57 is fixedly connected. At the position of the rubber wheel 56 close to the edge on the inner side, an expansion gel 58 is fixedly connected.

[0030] During use: Through the combined use of mechanisms such as the anti-rapid cooling mechanism, the regulating component, and the anti-accumulation mechanism, the welding auxiliary positioning device for steel structure bridge materials solves the problems that when performing tack welding on the circumferential weld, it is easy to cause stress accumulation and deformation of the pipe body, and the rapid cooling of the weld spot results in high quenching sensitivity of the workpiece.

[0031] In this device, bridge pipes are input from both sides of the tank body 2. The second motor 55 drives the rubber wheel 56 to rotate, and the pipes are conveyed into the tank body 2 through friction. The detector 34 detects the distance when the pipes are centered. When the distance between the pipes is appropriate, the welding torch 33 melts the welding wire 32 and performs tack welding on the pipe gap. The thinner connecting wall 35 is located in the middle of the gap. The welding wire 32 wound in the inner groove wall 31 can effectively prevent the welding wires 32 from being entangled with each other, thus realizing the auxiliary positioning welding of the bridge pipes. There are holes on the inner side of the connecting wall 35. The air pump 36 inputs the atmosphere inside the tank body 2 into the docking wall 41 through the connecting wall 35. When the welding torch 33 performs tack welding on the weld, molten solid impurities will splash into the docking wall 41. The flame retardant strip 44 limits the molten solid substances and at the same time prevents them from burning. The airflow generated by the air pump 36 passes through the molten substances and absorbs the temperature of the molten materials. The airflow with increased temperature flows out through the mesh body 45 and the weld. The input of the atmosphere and heat transfer achieve the purpose of using the heat of the molten solid impurities to avoid the rapid cooling of the weld spot.

[0032] When the bridge pipe enters the tank body 2 through the friction force of the rubber wheel 56, the pipes are butted at a position close to the welding torch 33. After the welding torch 33 performs single-point welding, the output end of the welding torch 33 is electrically connected to the input end of the first motor 42. The welding torch 33 controls the first motor 42 to drive the magnetic strip 43 to rotate by one-third of a circumferential angle. Due to the magnetic attraction between the magnetic strip 43 and the magnetic ball 53, the slip ring 52 slides on the inner side of the mechanism wall 51, and the pipes are reciprocally driven to rotate and three-point welding is achieved. The mutual restraint between the welding points can effectively prevent the stress accumulation and deformation of the pipe body. When the air flow passes through the mesh body 45, it is dispersed and divided into several small air flows. The filter screen 46 can prevent the molten impurities on the inner side of the docking wall 41 from entering the connecting wall 35 and causing blockage. When the pipes need to be rotated, the input end of the temperature controller 57 is fixedly connected to the output end of the welding torch 33. The temperature controller 57 raises the atmosphere temperature inside the rubber wheel 56, and the expansion gel 58 squeezes the rubber wheel 56, increasing the extrusion force of the rubber wheel 56 on the pipe surface, so that the clamping during the rotation of the pipes is more reliable.

[0033] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation. An element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding auxiliary positioning device for processing steel structure bridge materials, comprising a tank body (2), characterized in that: A rapid cooling prevention mechanism (3) is fixedly connected to the middle position of the surface of the tank body (2), and an accumulation prevention mechanism (5) is fixedly connected to the position near the edge of the inner side surface of the tank body (2). The rapid cooling prevention mechanism (3) includes an inner groove wall (31). A connecting wall (35) is fixedly connected to the bottom of the inner side surface of the inner groove wall (31). A docking wall (41) is fixedly connected to the top of the connecting wall (35). A net body (45) is fixedly connected to the top of the inner side surface of the docking wall (41). The accumulation prevention mechanism (5) includes a mechanism wall (51). A sliding ring (52) is slidably connected to the inner side surface of the mechanism wall (51). A connecting pipe (54) is fixedly connected to the surface of the sliding ring (52). A second motor (55) is fixedly connected to the bottom end of the connecting pipe (54). A rubber wheel (56) is fixedly connected to the rotating shaft of the output end of the second motor (55). A base (1) is fixedly connected to the bottom of the tank body (2). There are holes on both sides of the tank body (2). A hole is formed inside the connecting wall (35). An air pump (36) is fixedly connected to the surface of the connecting wall (35). A regulation component (4) is fixedly connected to the top of the connecting wall (35). The regulation component (4) includes a first motor (42). The surface of the first motor (42) is fixedly connected to the surface of the docking wall (41). A magnetic strip (43) is fixedly connected to the rotating shaft of the output end of the first motor (42). A flame retardant strip (44) is fixedly connected to the inner side surface of the docking wall (41). A hole is provided at the upper position of the surface of the docking wall (41). A filter screen (46) is fixedly connected to the upper position of the inner side surface of the connecting wall (35). The surface of the inner groove wall (31) is fixedly connected to the middle position of the surface of the tank body (2). A welding wire (32) is placed on the inner side surface of the inner groove wall (31). A welding torch (33) is fixedly connected to the inner side surface of the inner groove wall (31). The input end of the welding torch (33) is communicated with the surface of the welding wire (32). A detector (34) is fixedly connected to the top of the inner side surface of the inner groove wall (31).

2. The welding auxiliary positioning device for processing steel structure bridge materials according to claim 1, characterized in that: A magnetic ball (53) is fixedly connected to the inner side surface of the sliding ring (52) near the connecting pipe (54). The number of the rubber wheels (56) is two, and they are symmetrically distributed with the second motor (55) as the center.

3. The welding auxiliary positioning device for processing steel structure bridge materials according to claim 2, characterized in that: A temperature controller (57) is fixedly connected to the inner side surface of the rubber wheel (56) near the second motor (55). An expansion gel (58) is fixedly connected to the inner side surface of the rubber wheel (56) near the edge.

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