Bridge steel structure welding positioning auxiliary device

Abstract

The invention discloses a bridge steel structure welding positioning auxiliary device, and belongs to the technical field of bridge steel structures. The device comprises a supporting base, the two sides of the supporting base are sleeved with movable welding frames, the two ends of the supporting base are symmetrically provided with extending brackets, the top of the supporting base is sleeved with an adjusting base plate, welding movable bases are arranged on the inner walls of the tops of the movable welding frames, and top plates are arranged on the tops of the extending brackets; flexible configuration and efficient butt joint of welding equipment can be achieved, and stable transportation and accurate positioning of the bridge steel structural part before welding can be guaranteed; the device can adapt to bridge steel structural parts of different sizes, and a multi-dimensional and multi-point limiting structure can be provided, so that the positioning precision before welding is enhanced; and high-efficiency and high-precision welding treatment can be realized, and the stability and reliability of the welding quality can be ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge steel structure processing, and specifically provides an auxiliary device for welding positioning of bridge steel structures. Background Art

[0002] In the manufacturing and installation of bridge steel structures, welding is a crucial connection method. Common methods such as manual arc welding, submerged arc automatic welding, and gas shielded welding each have their own characteristics and are suitable for different scenarios and requirements. Although bridge steel structures have advantages such as light self-weight, high strength, large stiffness, and good stability, they also have disadvantages such as easy corrosion and poor fire resistance.

[0003] In view of this, when performing welding positioning of bridge steel structures, these factors need to be fully considered to select appropriate welding methods and materials. Welding technology is mainly applied to connecting steel plates and sections, connecting steel pipes and cast steel joints, as well as repairing and strengthening steel structures, etc., so as to ensure the quality and reliability of bridge steel structure welding and meet the overall requirements of bridge projects.

[0004] It should be noted in combination with the above content that the Chinese patent with the publication number CN117300486B discloses an H-shaped steel welding device for steel structure workshops. During its actual use, it can only perform welding adjustment on some fixed and restricted sheet-shaped steel structure parts and I-shaped steel structure parts, and the overall scope of use is limited. It cannot effectively adapt to the welding between multiple groups of I-shaped steel structure parts or the welding between I-shaped steel structure parts and other components. At the same time, affected by the self-weight of the steel structure parts, it is relatively difficult to adjust the steel structure parts themselves. Moreover, the installation and use scope of the welding components in the above comparative document are both limited, further causing restrictions on the welding of steel structure parts, resulting in low welding processing efficiency of the overall steel structure parts.

[0005] In view of the above technical defects, a solution is now proposed. Summary of the Invention

[0006] The purpose of the present invention is to provide an auxiliary device for welding positioning of bridge steel structures. By adapting the welding equipment to the robotic arm and flexibly adjusting the limiting and supporting structures, it realizes the efficient, stable transportation and high-precision welding processing of bridge steel structure parts, improves the efficiency, accuracy, and quality stability of welding operations, meets the welding requirements of bridge steel structure parts with different sizes and shapes, and solves the problems raised.

[0007] To achieve the above purpose, the present invention provides the following technical solution: An auxiliary device for welding positioning of bridge steel structures, including a support base, movable welding frames are sleeved on both sides of the support base, extension brackets are symmetrically arranged at both ends of the support base, an adjustment pad is sleeved on the top of the support base, a welding moving base is arranged on the inner wall of the top of the movable welding frame, and a top plate is arranged on the top of the extension bracket; On both sides of the adjusting cushion plate, there are movably sleeved with moving limit frames. On the top side edges of the adjusting cushion plate, there are symmetrically arranged side adjusting limit frames. In the center of the top of the adjusting cushion plate, there is a traction strip frame. On the inner wall of the top of the moving limit frame, there is a limit moving base. On the frame body of the side adjusting limit frame, there are extrusion balls and side balls.

[0008] Furthermore, on both sides of the support base, there are side guide rails one connected to the moving welding frame. On the top of the support base, there are symmetrically arranged top guide rails connected to the adjusting cushion plate. In the center of the end face of the support base, there is an inner groove penetrating through and connected to the extension bracket. Horizontally recessed on the top of the support base, there is a reserved groove.

[0009] Furthermore, on the inner wall of the frame body of the moving welding frame, there are multiple groups of inner arc guide rails one, which are connected to the welding moving base. On the bottom frame body of the moving welding frame, there is a driving seat one. At the bottom of the moving welding frame, there is a transverse moving frame.

[0010] Furthermore, on the end face of the extension bracket, there is an extension cross beam. Inside the extension bracket, there is a scissor lift connected to the top plate. On the top of the top plate, there are multiple groups of extension guide wheels.

[0011] Furthermore, on both sides of the adjusting cushion plate, there are side guide rails two connected to the moving limit frame. Embedded in the top of the adjusting cushion plate, there are multiple groups of horizontal adjusting cylinders connected to the side adjusting limit frame. At the bottom of the adjusting cushion plate, there is an adjusting cross beam.

[0012] Furthermore, at the bottom of the traction strip frame, there is a lifting cylinder inserted into the adjusting cushion plate. On the bottom frame of the traction strip frame, there is a servo motor connected to the lifting cylinder. Multiple groups of center guide rollers are sleeved on the top of the traction strip frame.

[0013] Furthermore, on the outer wall of the side of the side adjusting limit frame close to the frame body of the moving limit frame, there is a pushing cylinder, and on the side of the pushing cylinder, there is a rod sleeve penetrating through the top frame body of the side adjusting limit frame, and the rod sleeve is sleeved with the extrusion ball.

[0014] Furthermore, multiple groups of side guide rollers are sleeved on the top of the side adjusting limit frame and are located below the extrusion balls. The side balls are arranged on the outer wall of the side of the side adjusting limit frame close to the traction strip frame.

[0015] Furthermore, on the inner wall of the frame body of the moving limit frame, there are multiple groups of inner arc guide rails two, which are connected to the limit moving base. At the bottom of the limit moving base, there is a rotary cylinder. At the bottom of the rotary cylinder, there is a robotic arm rod. At the bottom of the robotic arm rod, there is an adjusting roller. On the bottom frame body of the moving limit frame, there is a driving seat two.

[0016] The beneficial effects of the present invention are: The present invention realizes the flexible configuration and efficient docking of the welding equipment through the installation and docking of external equipment with the welding mobile base, as well as the adjustment rollers or anti - detachment fittings replaced according to the bridge steel structure members. At the same time, the welding fitting support frame installed in the reserved groove provides a stable support for the welding of bridge steel structure members, and combined with the extension bracket for extension support according to the length of the workpiece, it realizes the rapid and stable transportation and positioning of bridge steel structure members (such as I - beams). The efficient and flexible welding preparation and positioning methods greatly improve the efficiency and accuracy of welding operations.

[0017] The present invention realizes the self - adaptive limit clamping of the bottom of the flank of the bridge steel structure member by adjusting the distance between the side - adjusting limit frame and the traction strip frame according to the size difference of the bridge steel structure member, and using self - adaptive limit clamping mechanisms such as extrusion balls and side guide rollers. At the same time, combined with structures such as lifting cylinders and central guide rollers, it realizes the stable support and transportation of the middle support body of the bridge steel structure member. In addition, through the coordinated use of mechanisms such as movable limit frames and limit movable bases, a multi - dimensional and multi - point limit structure is formed, which helps the multi - point compensation - type positioning treatment of the bridge steel structure before welding. The self - adaptive limit and stable transportation methods ensure the stability and accuracy of the bridge steel structure member during the welding process.

[0018] When the bridge steel structure member is transported by multi - point limit and approaches the reserved groove, the present invention realizes the high - efficiency, high - precision and high - quality welding treatment of the welding machine and the numerical control robotic arm for the bridge steel structure members that are limit - attached together through the transmission connection between the drive seat and the side guide rail, and the adjustment of the inner arc guide rail for the welding mobile base. It not only improves the efficiency and accuracy of welding operations, but also ensures the stability and reliability of welding quality. It also has high flexibility and adaptability, can meet the welding requirements of bridge steel structure members of different sizes and shapes, and can perform self - adaptive and quick adjustments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 It is a three - dimensional view of the overall structure of the present invention; Figure 2 It is a schematic structural view of the support base of the present invention; Figure 3 It is a schematic structural view of the extension bracket of the present invention; Figure 4 It is a schematic structural view of the mobile welding frame of the present invention; Figure 5 Structural schematic diagram of the adjusting cushion plate of the present invention; Figure 6 Structural schematic diagram of the traction bar frame of the present invention; Figure 7 Structural schematic diagram of the side adjusting limit frame of the present invention; Figure 8 Structural schematic diagram of the limit moving base of the present invention.

[0021] Reference numerals: 1, support base; 101, first side guide rail; 102, inner groove; 103, top guide rail; 2, adjusting cushion plate; 201, second side guide rail; 202, horizontal adjusting cylinder; 203, traction bar frame; 204, adjusting cross beam; 205, lifting cylinder; 206, servo motor; 207, central guide roller; 3, side adjusting limit frame; 301, transverse moving frame; 302, pushing cylinder; 303, rod sleeve; 304, extrusion ball; 305, side guide roller; 306, side ball; 4, moving welding frame; 401, first inner arc guide rail; 402, welding moving base; 403, first driving seat; 5, moving limit frame; 501, second driving seat; 502, second inner arc guide rail; 503, limit moving base; 504, slewing cylinder; 505, robotic arm rod; 506, adjusting roller; 6, extension bracket; 601, extension cross beam; 602, scissor lift; 603, top plate; 604, extension guide wheel. Specific embodiments

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Embodiment 1: Please refer to Figure 1 - Figure 8As shown in the figure, this embodiment is an auxiliary device for welding positioning of bridge steel structures, including a support base 1. On both sides of the support base 1, a movable welding frame 4 is sleeved. At both ends of the support base 1, extension brackets 6 are symmetrically arranged. On the top of the support base 1, an adjusting pad 2 is sleeved. On the inner wall of the top of the movable welding frame 4, a welding moving base 402 is arranged. On the top of the extension bracket 6, a top plate 603 is arranged. Replace the welding machine adapted to the welding requirements of the bridge steel structure parts, and install and dock the welding machine with the welding moving base 402 through the adapted numerical control robotic arm. At the same time, replace the adapted adjusting roller 506 or anti-disengagement parts according to the bridge steel structure parts, and install the support frame of the welding parts in the reserved groove according to the welding requirements of the bridge steel structure parts, so as to facilitate the welding treatment between multiple groups of bridge steel structure parts and welding parts under the multi-dimensional and multi-axial welding treatment of the welding machine after multiple groups of bridge steel structure parts move close to the welding parts.

[0024] On both sides of the support base 1, a first side guide rail 101 connected to the movable welding frame 4 is arranged. On the top of the support base 1, a top guide rail 103 connected to the adjusting pad 2 is symmetrically arranged. In the center of the end face of the support base 1, an inner groove 102 connected to the extension bracket 6 is penetrated and opened. On the top of the support base 1, a reserved groove is transversely recessed. For example, when the bridge steel structure parts in the shape of I-beam are butt-welded, the I-beam steel structure parts to be welded are hoisted by an external hoisting device to both ends of the support base 1, and the extension bracket 6 is started according to the length of the I-beam steel structure parts.

[0025] On the inner wall of the frame body of the movable welding frame 4, multiple groups of first inner arc guide rails 401 are arranged. The first inner arc guide rails 401 are connected to the welding moving base 402. On the bottom frame body of the movable welding frame 4, a first driving seat 403 is arranged. On the bottom of the movable welding frame 4, a transverse moving frame 301 is arranged. When it is transported close to the reserved groove by multi-point limit, the first driving seat 403 is in transmission connection with the first side guide rail 101, and drives the movable welding frame 4 to move along the axis of the support base 1. The first inner arc guide rails 401 drive the welding moving base 402 to adjust the welding angle along the top of the frame body of the movable welding frame 4, and cooperate with the welding machine and the numerical control robotic arm to perform high-efficiency, high-precision and high-quality welding treatment on the I-beam steel structure parts attached together by limit.

[0026] The end face of the extension bracket 6 is provided with an extension cross beam 601. Inside the extension bracket 6, there is a scissor lift 602 connected to the top plate 603. On the top of the top plate 603, there are multiple groups of extension guide wheels 604. The extension bracket 6 slides along the inner groove 102 through the extension cross beam 601, and pushes the extension bracket 6 to move and expand outward along the end face of the support base 1. The bottom of the extension bracket 6 is provided with rollers in contact with the ground. When the extension bracket 6 is expanded to an appropriate length, the scissor lift 602 drives the top plate 603 to slide upward away from the extension bracket 6 until the top plate 603 approaches the bottom of the I-beam steel structure to be processed, forming a support for the bottom of the I-beam steel structure. Along with the disconnection of the I-beam steel structure by an external hoisting device, the extension bracket 6 supports the I-beam steel structure.

[0027] The scissor lift 602 drives the top plate 603 to slide down slowly until the height of the extension guide wheel 604 is the same as that of the center guide wheel. When the extension bracket 6 moves away from the support base 1, a braking mechanism is arranged on the side of the extension guide wheel 604. The braking mechanism is started to clamp the extension guide wheel 604, facilitating the retraction of the extension bracket 6 close to the support base 1, and using the self-weight of the I-beam steel structure member and the anti-slip friction force of the extension guide wheel 604 to push the I-beam steel structure member to be transported stably towards the support base 1.

[0028] Embodiment 2: Please refer to Figure 1 - Figure 5 As shown in the figure, this embodiment is an auxiliary device for welding and positioning of bridge steel structures, including that both sides of the adjusting cushion plate 2 are sleeved with moving limit frames 5. On the top side edges of the adjusting cushion plate 2, side adjusting limit frames 3 are symmetrically arranged. In the center of the top of the adjusting cushion plate 2, there is a traction strip frame 203. On the inner wall of the top of the moving limit frame 5, there is a limit moving base 503. On the frame body of the side adjusting limit frame 3, there are extrusion balls 304 and side balls 306.

[0029] On both sides of the adjusting cushion plate 2, there are side guide rails II 201 connected to the moving limit frames 5. On the top of the adjusting cushion plate 2, multiple groups of horizontal adjusting cylinders 202 connected to the side adjusting limit frames 3 are embedded. At the bottom of the adjusting cushion plate 2, there is an adjusting cross beam 204.

[0030] A lifting cylinder 205 inserted into the adjusting pad 2 is arranged at the bottom of the traction bar frame 203, and a servo motor 206 connected to the lifting cylinder 205 is arranged on the bottom frame of the traction bar frame 203. Multiple sets of center guide rollers 207 are sleeved on the top of the traction bar frame 203. When one end of the I-beam steel structure contacts the adjusting pad 2, the middle support body of the I-beam steel structure is suspended above the traction bar frame 203, and the lifting cylinder 205 drives the traction bar frame 203 to slide up until the center guide roller 207 contacts the surface of the support body. Combined with the side adjustment limit frame 3, the three-point adaptive limit contact of the I-beam steel structure is realized. The servo motor 206 drives the multiple sets of center guide rollers 207 to rotate through structures such as couplings and transmission chains, and the center guide rollers 207 pull the I-beam steel structure to be stably transported to the reserved groove position.

[0031] A pushing cylinder 302 is arranged on the outer wall of the side adjustment limit frame 3 close to the movable limit frame 5, and a rod sleeve 303 penetrating the top frame of the side adjustment limit frame 3 is arranged on the side of the pushing cylinder 302, and the rod sleeve 303 is sleeved with the squeezing ball 304, and the top of the side adjustment limit frame 3 is sleeved with multiple groups of side guide rollers 305 located below the squeezing ball 304, and the side balls 306 are arranged on the outer wall of the side adjustment limit frame 3 close to the traction bar frame 203, and the side adjustment limit frame 3 and the traction bar frame 203 are adjusted according to the size of the I-beam steel structure. 3, when one end of the I-beam steel structure contacts the adjusting pad 2, the side wing of the I-beam steel structure is embedded in the top groove of the side adjustment limit frame 3 and contacts the side guide roller 305, pushing the cylinder 302 to drive the rod sleeve 303 to extend until it drives the squeezing ball 304 to extend along the outer frame of the side adjustment limit frame 3 to the outer wall of the side wing of the I-beam steel structure, thereby realizing adaptive limit clamping of the bottom of the side wing of the I-beam steel structure and maintaining the active contact between the I-beam steel structure and the squeezing ball 304 and the side guide roller 305.

[0032] A plurality of sets of inner arc guide rails 502 are arranged on the inner wall of the movable limit frame 5, and the inner arc guide rails 502 are connected to the limit movable base 503, and a rotary cylinder 504 is arranged at the bottom of the limit movable base 503, and a mechanical arm rod 505 is arranged at the bottom of the rotary cylinder 504, and an adjusting roller 506 is arranged at the bottom of the mechanical arm rod 505. A driving seat 501 is arranged on the bottom frame of the movable limit frame 5. When one end of the I-beam steel structure contacts the adjusting pad 2, and is limited by three points through the side adjustment limit frame 3 and the traction strip frame 203, the movable limit frame 5 is connected to the side guide rail 201 through the driving seat 501, and drives the movable limit frame 5 along the adjusting The two sides of the section pad 2 move axially, and the limit movable base 503 is adjusted according to the position of the top support body of the I-beam steel structure, and the limit movable base 503 is driven by the inner arc guide rail 502 to slide along the inner wall of the top frame of the movable limit frame 5. After the position adjustment of the limit movable frame is completed, the mechanical arm rod 505 is adjusted and rotated by the rotary cylinder 504 to calibrate the adjustment roller 506 toward the top of the support body, and the mechanical arm rod 505 is extended to drive the adjustment roller 506 to contact the support body, combined with the side adjustment limit frame 3 and the traction strip frame 203, a multi-dimensional, multi-point limit structure is formed, which is helpful for the multi-point compensation positioning treatment of the I-beam steel structure before welding.

[0033] Combining Example 1 and Example 2, it is possible to achieve flexible configuration and efficient docking of welding equipment, and ensure stable transportation and precise positioning of bridge steel structures before welding; it is possible to adapt to bridge steel structures of different sizes, and provide a multi-dimensional, multi-point limiting structure to enhance the positioning accuracy before welding; it is possible to achieve high-efficiency, high-precision welding processing, and ensure the stability and reliability of welding quality.

[0034] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only the specific embodiments. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A bridge steel structure welding positioning auxiliary device, comprising a support base (1), characterized in that: The support base (1) is provided with movable welding frames (4) sleeved on both sides, the support base (1) is provided with extension brackets (6) symmetrically at both ends, the support base (1) is provided with an adjustment pad (2) sleeved on the top of the support base (1), a movable welding base (402) is provided on the inner wall of the top of the movable welding frame (4), and a top plate (603) is provided on the top of the extension bracket (6); The two sides of the adjustment pad (2) are sleeved with movable limit frames (5), the top side of the adjustment pad (2) is symmetrically provided with side adjustment limit frames (3), the top center of the adjustment pad (2) is provided with a traction bar frame (203), the top inner wall of the movable limit frame (5) is provided with a limited movable base (503), and the frame body of the side adjustment limit frame (3) is provided with a squeezing ball (304) and a side ball (306).

2. A bridge steel structure welding positioning auxiliary device according to claim 1, characterized in that: Side guide rails (101) connected to the movable welding frame (4) are arranged on both sides of the support base (1); top guide rails (103) connected to the adjustment pad (2) are symmetrically arranged on the top of the support base (1); an inner groove (102) connected to the extension bracket (6) is opened through the center of the end surface of the support base (1); and a reserved groove is arranged in a transverse depression on the top of the support base (1).

3. The bridge steel structure welding positioning auxiliary device according to claim 1 is characterized in that: A plurality of groups of inner arc guide rails (401) are arranged on the inner wall of the frame of the movable welding frame (4); the inner arc guide rails (401) are connected to the movable welding base (402); a driving seat (403) is arranged on the bottom frame of the movable welding frame (4); and a transverse frame (301) is arranged at the bottom of the movable welding frame (4).

4. The bridge steel structure welding positioning auxiliary device according to claim 1 is characterized in that: An extension crossbeam (601) is provided at the end surface of the extension bracket (6), a scissor lift (602) connected to a top plate (603) is provided inside the extension bracket (6), and a plurality of groups of extension guide wheels (604) are provided on the top of the top plate (603).

5. The bridge steel structure welding positioning auxiliary device according to claim 1 is characterized in that: Side guide rails (201) connected to the movable limit frame (5) are arranged on both sides of the adjustment pad (2), a plurality of groups of horizontal adjustment cylinders (202) connected to the side adjustment limit frame (3) are embedded on the top of the adjustment pad (2), and an adjustment beam (204) is arranged on the bottom of the adjustment pad (2).

6. A bridge steel structure welding positioning auxiliary device according to claim 5, characterized in that: A lifting cylinder (205) inserted into the adjusting pad (2) is arranged at the bottom of the traction bar frame (203), a servo motor (206) connected to the lifting cylinder (205) is arranged on the bottom frame of the traction bar frame (203), and a plurality of sets of central guide rollers (207) are sleeved on the top of the traction bar frame (203).

7. The bridge steel structure welding positioning auxiliary device according to claim 1 is characterized in that: A pushing cylinder (302) is arranged on the outer wall of the side of the frame body of the side adjustment limit frame (3) close to the movable limit frame (5), and a rod sleeve (303) penetrating the top frame body of the side adjustment limit frame (3) is arranged on the side of the pushing cylinder (302), and the rod sleeve (303) is sleeved with a squeezing ball (304).

8. The bridge steel structure welding positioning auxiliary device according to claim 7 is characterized in that: The top of the side adjustment limit frame (3) is sleeved with a plurality of groups of side guide rollers (305) located below the squeezing balls (304), and the side balls (306) are arranged on the outer wall of the side adjustment limit frame (3) close to the traction bar frame (203).

9. The bridge steel structure welding positioning auxiliary device according to claim 1, characterized in that: A plurality of sets of inner arc guide rails (502) are arranged on the inner wall of the movable limit frame (5), the inner arc guide rails (502) are connected to the limit movable base (503), a rotary cylinder (504) is arranged at the bottom of the limit movable base (503), a mechanical arm rod (505) is arranged at the bottom of the rotary cylinder (504), an adjusting roller (506) is arranged at the bottom of the mechanical arm rod (505), and a driving seat (501) is arranged on the bottom frame of the movable limit frame (5).

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