A steel box girder rib welding device

Abstract

The invention relates to the technical field of rib welding, and specifically discloses a steel box girder rib welding device, comprising a moving mechanism, a clamping mechanism and a welding mechanism, wherein the clamping mechanism comprises a lifting assembly and a plurality of clamping assemblies, wherein each clamping assembly is respectively located between adjacent ribs, and the clamping assembly comprises a connecting rod and two supporting members, wherein the two supporting members are connected to the connecting rod through a telescopic adjusting member, and the supporting members are simultaneously fitted with the ribs and the bottom plate, and a cavity is formed inside the supporting members, and an opening opposite to the ribs, the bottom plate and the connection between the supporting members is provided on the supporting members, and a cleaning mechanism is provided inside the supporting members, wherein the cleaning mechanism comprises a cleaning roller 1, a cleaning roller 2 and a dust suction assembly, wherein the cleaning roller 1 and the cleaning roller 2 are both rotatably matched with the supporting members, the cleaning roller 1 is fitted with the ribs and rotates relative to the ribs, the cleaning roller 2 is fitted with the bottom plate and rotates relative to the bottom plate, and the dust suction assembly sucks impurities inside the supporting members, and the welding device provided by the invention improves the welding quality of the ribs.

Description

Technical Field

[0001] The invention relates to the technical field of rib welding, and in particular to a steel box girder rib welding device. Background Art

[0002] The welding operation of steel box girder ribs is crucial to ensuring the integrity and safety of the bridge structure. During the welding operation, the ribs and the main structure of the box girder need to be assembled and fixed to ensure that the ribs do not change position relative to the main structure of the box girder during the welding process, thereby improving the welding accuracy of the ribs and the main structure of the box girder.

[0003] The patent document with authorization announcement number CN116586880B discloses a clamping device for welding U-shaped ribs, comprising a clamping assembly, a moving assembly, a welding assembly, and a controller, wherein the moving assembly is provided with two groups, divided into left and right sides, with the middle being convenient for placing the U-shaped ribs and the top plate, a first connecting plate being provided between the two groups of moving assemblies, the clamping assembly being provided on the first connecting plate, and the clamping assembly corrects the U-shaped ribs; the clamping assembly is provided with multiple groups, the clamping assembly includes a second drive, the second drive is fixed to the first connecting plate, a mounting plate is fixed to the output end of the second drive, four groups of clamping rods are fixed to the bottom of the mounting plate, the bottom bearing of the clamping rod is connected to the first roller, and the first roller is conical for easy fitting with the U-shaped ribs; the clamping device for welding U-shaped ribs provided by the patent document can correct the U-shaped ribs when the clamping assembly moves, which is convenient for subsequent welding operations and improves the welding strength.

[0004] Affected by the operating environment, there will inevitably be some impurities at the joints between the ribs and the main structure of the box girder. During the welding operation of the steel box girder ribs, the presence of impurities has a significant impact on the welding quality, which will lead to poor weld formation, porosity and other defects. Therefore, in order to ensure the welding quality of the ribs, in addition to ensuring the relative stability between the ribs and the main structure of the box girder during the welding operation, it is also necessary to clean the impurities at the welding position. Summary of the invention

[0005] The present invention provides a steel box girder rib welding device, aiming to solve the problem in the related art that when welding the rib and the box girder main structure, impurities at the welding position are likely to affect the welding quality.

[0006] A steel box girder rib welding device of the present invention comprises a moving mechanism and a clamping mechanism and a welding mechanism installed on the moving mechanism, wherein the moving mechanism drives the clamping mechanism and the welding mechanism to move, the welding mechanism is used to weld the rib and the bottom plate, the clamping mechanism comprises a lifting assembly and a plurality of clamping assemblies, each of the clamping assemblies is respectively located between two adjacent ribs, the clamping assembly comprises a connecting rod and two supporting members, both of the two supporting members are connected to the connecting rod through a telescopic adjusting member, and the two supporting members are simultaneously attached to the rib and the bottom plate;

[0007] A cavity is formed inside the support member, and an opening is provided on the support member, and the opening is opposite to the rib plate, the bottom plate and the connection between them. A cleaning mechanism is provided inside the support member, and the cleaning mechanism includes a cleaning roller 1, a cleaning roller 2 and a dust suction assembly. Both the cleaning roller 1 and the cleaning roller 2 are rotatably matched with the support member, the cleaning roller 1 is in contact with the rib plate and rotates relative to the rib plate, the cleaning roller 2 is in contact with the bottom plate and rotates relative to the bottom plate, and the dust suction assembly is used to absorb and collect impurities inside the support member.

[0008] The beneficial effects are: improving the welding quality of the ribs and ensuring the welding strength between the ribs and the bottom plates; the lifting assembly drives each group of clamping assemblies to move between each rib; the supporting parts of the clamping assemblies fit the ribs and the bottom plates at the same time to clamp and fix the ribs, thereby improving the position stability of the ribs during welding and ensuring the welding accuracy; the cleaning mechanism inside the supporting parts is used to clean the impurities in the welding positions of the ribs and the bottom plates and the gaps between the ribs and the bottom plates before welding the ribs, thereby ensuring the forming quality of the weld, reducing the generation of pores during welding, and improving the welding quality of the ribs.

[0009] Preferably, the dust suction assembly includes a dust suction device and a dust suction port, the dust suction port is opened on the support member and communicated with the interior of the support member, and the dust suction device is connected to the dust suction port via a pipe.

[0010] The beneficial effects are: improving the cleaning effect of impurities in the gap between the rib plate and the bottom plate, forming a relatively closed space at the connection between the rib plate and the bottom plate at the position of the support member, sucking the air in the support member through the dust collection device, promoting the reduction of the pressure in the support member, after the pressure in the support member is reduced, the gas flows from the inside of the rib plate through the gap between the rib plate and the bottom plate into the support member, and brings out the impurities in the rib plate and moves into the support member, and is collected by the dust collection component;

[0011] After the external welding of the "U"-shaped rib is completed, it is necessary to use special equipment to weld the connection between the rib and the bottom plate inside the rib. The welding device provided by the present invention can clean the welding position on the inner side of the rib while cleaning the welding position on the outer side of the rib, thereby improving the quality of subsequent welding on the inner side of the rib. It also solves the problem in the related art that it is inconvenient to clean impurities inside the rib due to space limitations inside the rib, and effectively ensures the welding strength between the rib and the bottom plate.

[0012] Preferably, the outer cover of the cleaning roller 1 is provided with a cover body 1, and the outer cover of the cleaning roller 2 is provided with a cover body 2. The cover body 1 is provided with a connecting hole 1 connected to the interior of the cover body 1, and the cover body 2 is provided with a connecting hole 2 connected to the interior of the cover body 2. Both the connecting hole 1 and the connecting hole 2 are connected to the dust suction port through a connecting pipe.

[0013] The beneficial effects are: improving the cleaning effect of cleaning roller one and cleaning roller two, the dust suction component is connected to cover body one and cover body two, and is used to timely absorb and collect impurities attached to cleaning roller one and cleaning roller two, thereby ensuring the cleanliness of cleaning roller one and cleaning roller two during operation.

[0014] Preferably, the cover body 1 and the cover body 2 are both arc-shaped plates, and sealing plates are provided at both ends of the length of the cover body 1 and the cover body 2. Scrapers are provided at the two opening ends of the cover body 1 and the cover body 2, and each scraper is respectively in contact with the cleaning roller 1 and the cleaning roller 2.

[0015] The beneficial effects are: promoting the separation of impurities from cleaning roller one and cleaning roller two, further improving the cleaning effect of cleaning roller one and cleaning roller two, the scraper cleans the impurities on cleaning roller one and cleaning roller two, improving the separation effect of impurities, and preventing cleaning roller one and cleaning roller two from being taken out of cover body one and cover body two when they are rotated relative to cover body one and cover body two.

[0016] Preferably, the moving mechanism includes a driving member and a guide member, there are two guide members, and the two guide members are respectively arranged on both sides of the base plate, the clamping mechanism and the welding mechanism are both slidably matched with the guide members, and the length direction of the guide member is parallel to the length direction of the rib plate, with the side facing the welding direction of the rib plate as the front side, and the clamping mechanism is located on the front side of the welding mechanism.

[0017] Preferably, the lifting assembly includes a guide frame, a connecting piece and a cylinder. The guide frame is slidably matched with the guide frame, the guide frame is in the shape of a "door", the connecting piece is longitudinally slidably matched with the guide frame, the protruding end of the cylinder is fixed to the connecting piece, and the upper end of each connecting rod is detachably connected to the connecting piece.

[0018] Preferably, a support plate is fixed to the lower end of the connecting rod, and the support plate slides against the bottom plate.

[0019] The beneficial effects are: improving the stability of the movement of the clamping assembly, the lifting assembly and the guide member slidingly cooperate, so that the lifting assembly drives each group of clamping assemblies to move stably, and the connecting rod of the clamping assembly further slides with the support plate and the bottom plate, thereby improving the stability of the clamping assembly moving between the two groups of ribs, thereby improving the fixing effect of the clamping assembly on the ribs.

[0020] Preferably, one end of the telescopic adjustment member is hinged to the connecting rod, and the other end of the telescopic adjustment member is hinged to the supporting member.

[0021] Preferably, the welding mechanism includes a bracket and multiple groups of welding components, the bracket is slidably matched with the guide member, each group of welding components is slidably connected to the bracket in the horizontal and vertical directions at the same time, and each group of welding components works synchronously.

[0022] The beneficial effects of the present invention are:

[0023] (1) Improve the welding quality of the ribs and ensure the welding strength between the ribs and the bottom plate. The lifting assembly drives each group of clamping assemblies to move between each rib. The support members of the clamping assembly fit the ribs and the bottom plate at the same time to clamp and fix the ribs, thereby improving the position stability of the ribs during welding and ensuring the welding accuracy. The cleaning mechanism inside the support member is used to clean the impurities in the welding position of the ribs and the bottom plate, as well as the gap between the ribs and the bottom plate before welding the ribs, thereby ensuring the forming quality of the weld, reducing the generation of pores during welding, and improving the welding quality of the ribs.

[0024] (2) Improve the cleaning effect of impurities in the gap between the rib plate and the bottom plate. The connection between the rib plate and the bottom plate forms a relatively closed space at the position of the support. The air in the support is sucked by the dust collection device to promote the reduction of the pressure in the support. After the pressure in the support is reduced, the gas flows from the inside of the rib plate through the gap between the rib plate and the bottom plate into the support, and brings out the impurities in the rib plate and moves into the support, and is collected by the dust collection component;

[0025] After the external welding of the "U"-shaped rib is completed, it is necessary to use special equipment to weld the connection between the rib and the bottom plate inside the rib. The welding device provided by the present invention can clean the welding position on the inner side of the rib while cleaning the welding position on the outer side of the rib, thereby improving the quality of subsequent welding on the inner side of the rib. It also solves the problem in the related art that it is inconvenient to clean impurities inside the rib due to space limitations inside the rib, and effectively ensures the welding strength between the rib and the bottom plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1It is a schematic diagram of the overall structure of the present invention.

[0027] Figure 2 It is a schematic diagram of the state in which the clamping assembly of the present invention is located between two ribs.

[0028] Figure 3 It is a schematic diagram of the overall structure of the support.

[0029] Figure 4 It is a schematic diagram of the structure inside the support.

[0030] Figure 5 It is a schematic diagram of the connection structure between the cleaning roller 2, the cover body 2 and the scraper in the present invention.

[0031] Reference numerals:

[0032] 1. Guide member; 11. Bracket; 12. Welding assembly; 2. Guide frame; 21. Connector; 22. Cylinder; 3. Connecting rod; 31. Support member; 311. Blocking block; 312. Dust suction port; 32. Support plate; 33. Telescopic adjustment member; 4. Cleaning roller one; 41. Cover body one; 42. Cleaning roller two; 43. Cover body two; 431. Connecting hole two; 432. Scraper; 5. Bottom plate; 51. Rib plate. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0034] like Figure 1 and Figure 2 As shown, a steel box girder rib welding device of the present invention comprises a moving mechanism, a clamping mechanism and a welding mechanism. The clamping mechanism is used to fix the rib 51 and the bottom plate 5 to ensure the relative position accuracy of the rib 51 and the bottom plate 5 during welding. The welding mechanism moves along the length direction of the rib 51 and welds the rib 51 and the bottom plate 5. The welding mechanism performs continuous welding operations on the rib 51 and the bottom plate 5, that is, continuously welds from one end of the length of the rib 51 to the other end of its length. The moving mechanism drives the clamping mechanism and the welding mechanism to move, with the side facing the forward direction of the welding mechanism during continuous welding operation as the front side. The clamping mechanism is located at the front side of the welding mechanism, that is, the clamping mechanism first fixes the position of the rib 51 at the front side of the welding mechanism, and then the welding mechanism welds the rib 51 of this section to improve the welding accuracy of the rib 51.

[0035] The moving mechanism includes a driving member and a guide member 1, wherein two guide members 1 can be provided, the two guide members 1 are respectively arranged on both sides of the base plate 5, and are parallel to the length direction of the base plate 5 and the rib plate 51, the clamping mechanism and the welding mechanism are slidably matched with the two guide members 1, the driving member drives the clamping mechanism and the welding mechanism to slide back and forth along the length direction of the guide member 1, the clamping mechanism and the welding mechanism can be synchronously driven by the same driving member, the clamping mechanism and the welding mechanism maintain a certain distance and move synchronously, the clamping mechanism and the welding mechanism can be independently driven by two driving members, after the clamping mechanism moves to a specified distance in front of the welding mechanism, the welding mechanism moves again and welds the rib plate 51 and the base plate 5, the clamping mechanism and the welding mechanism can be driven by two driving members to move at intervals along the guide member 1.

[0036] The welding mechanism includes a bracket 11 and a welding assembly 12. To improve the welding efficiency, the welding assembly 12 is preferably provided in multiple groups (not shown in the figure). The bracket 11 is slidably matched with the guide member 1. The bracket 11 can be in the shape of a "door". Each group of welding assemblies 12 is slidably connected to the bracket 11 in the horizontal and vertical directions at the same time. Each group of welding assemblies 12 works synchronously to weld the ribs 51 on the bottom plate 5 at the same time, thereby improving the welding efficiency of the ribs 51 and the bottom plate 5.

[0037] like Figure 1 and Figure 2 As shown, the clamping mechanism includes a lifting assembly and multiple groups of clamping assemblies. A group of clamping assemblies is provided between any two adjacent ribs 51. Each group of clamping assemblies is connected to the lifting assembly. The lifting assembly drives each group of clamping assemblies to rise and fall synchronously. When each group of clamping assemblies descends to fit with two adjacent ribs 51, the ribs 51 are clamped and fixed.

[0038] The lifting assembly includes a guide frame 2, a connecting piece 21 and a cylinder 22. The guide frame 2 is in the shape of a "door". The guide frame 2 is slidably matched with the two guide pieces 1. The connecting piece 21 is longitudinally slidably matched with the guide frame 2. The fixed end of the cylinder 22 is fixed to the guide frame 2, and the protruding end of the cylinder 22 is fixed to the connecting piece 21. The cylinder 22 is used to drive the connecting piece 21 to slide longitudinally relative to the guide frame 2. Each group of clamping assemblies is detachably connected to the connecting piece 21. When the connecting piece 21 is lifted or lowered, it drives each group of clamping assemblies to be lifted or lowered synchronously. When welding steel box girder ribs of different specifications, the spacing between the ribs 51 may be different. When the specifications of the steel box girder ribs change, the spacing between two adjacent groups of clamping assemblies can be adjusted to improve the versatility of the welding device in the welding operation of steel box girder ribs of different specifications. The connection methods between the clamping assembly and the connecting piece 21 include but are not limited to plug-in fit and threaded connection.

[0039] The clamping assembly includes a connecting rod 3 and two support members 31. The two support members 31 are connected to the connecting rod 3 through a telescopic adjusting member 33. The telescopic adjusting member 33 can be an elastic telescopic rod. One end of the telescopic adjusting member 33 is hinged to the support member 31, and the other end of the telescopic adjusting member 33 is hinged to the connecting rod 3. After the clamping assembly moves between the two ribs 51, under the elastic force of the telescopic adjusting member 33, the support member 31 abuts against the inclined surface of the rib 51 to enhance the fixing strength of the clamping assembly to the rib 51. The upper end of the connecting rod 3 is connected to the connecting member 21, and a support plate 32 is fixed to the lower end of the connecting rod 3. The support plate 32 can slide against the bottom plate 5. The support plate 32 can enhance the stability of the clamping assembly moving between the two ribs 51.

[0040] When fixing the two outermost ribs 51, it is impossible to fix the ribs 51 on both sides of the ribs 51 at the same time. In order to ensure the fixing effect of the two outermost ribs 51, the two outer ribs 51 can be spot-welded according to the preset welding positions during operation. At the same time, the two outermost ribs 51 can also play a positioning role. Taking the position of the outermost ribs 51 as a reference, it is convenient to determine the position of the middle ribs 51.

[0041] like Figures 3 to 5 As shown, affected by the working environment, some debris will be generated during the processing of the steel box girder, and some dust and debris-like impurities will adhere to the bottom plate 5 and the rib plate 51. The presence of impurities will affect the welding quality, resulting in poor weld formation, defects such as pores, etc. In order to further improve the welding quality of the rib plate 51, a cleaning mechanism for cleaning the welding position of the rib plate 51 and the bottom plate 5 is also provided in the support member 31. The support member 31 is simultaneously attached to the rib plate 51 and the bottom plate 5, and a cavity is formed inside the support member 31. An opening is provided on the support member 31, and the opening is simultaneously opposite to the rib plate 51, the bottom plate 5 and their connection, and the cleaning structure is arranged in the cavity of the support member 31.

[0042] The cleaning mechanism includes a cleaning roller 1 4, a cleaning roller 2 42 and a dust suction assembly. The cleaning roller 1 4 and the cleaning roller 2 42 are both rotatably matched with the support member 31. The cleaning roller 1 4 and the cleaning roller 2 42 are each connected to the support member 31 through a connecting shaft. The cleaning roller 1 4 is attached to the rib plate 51 and rotates relative to the rib plate 51. The cleaning roller 2 42 is attached to the bottom plate 5 and rotates relative to the bottom plate 5. When the cleaning roller 1 4 rotates relative to the rib plate 51, the position to be welded on the rib plate 51 is cleaned. When the cleaning roller 2 42 rotates relative to the bottom plate 5, the position to be welded on the bottom plate 5 is cleaned. The dust suction assembly sucks the impurities cleaned by the cleaning roller 1 4 and the cleaning roller 2 42, as well as the impurities in the connection gap between the rib plate 51 and the bottom plate 5, so as to enhance the welding of the rib plate 51 and the bottom plate 5. The cleanliness of the connection position is ensured to ensure the quality of the weld. When the support member 31 moves in contact with the rib plate 51, the cleaning roller 1 4 and the cleaning roller 2 42 rotate relative to the connecting shaft under the action of friction, and remove impurities on the rib plate 51 and the bottom plate 5. Brushes are evenly arranged on the circumference of the cleaning roller 1 4 and the cleaning roller 2 42. The material of the brushes includes but is not limited to steel wire and nylon. In order to improve the cleaning effect of the cleaning roller 1 4 and the cleaning roller 2 42, the cleaning roller 1 4 and the cleaning roller 2 42 can fully rub and clean the rib plate 51 and the bottom plate 5. The cleaning roller 1 4 and the cleaning roller 2 42 can cooperate with the connecting shaft damping, that is, the friction of the cleaning roller 1 4 and the cleaning roller 2 42 relative to the connecting shaft is improved, and the rotation speed of the cleaning roller 1 4 and the cleaning roller 2 42 relative to the connecting shaft is reduced.

[0043] The dust suction component includes a dust suction device and a dust suction port 312. The dust suction port 312 is opened on the support member 31. The dust suction port 312 is communicated with the inside of the support member 31. The dust suction device is connected to the dust suction port 312 through a pipe fitting, and sucks the gas inside the support member 31, so that a relatively negative pressure environment is formed inside the support member 31, thereby promoting impurities inside the support member 31 to enter the pipe fitting through the dust suction port 312. The pipe fitting can be connected to a dust collecting member, and impurities are further collected through the dust collecting member. The dust suction component can improve the cleaning effect of impurities at the connection between the rib plate 51 and the bottom plate 5. The rib plate 51 is placed on the bottom plate 5. A small gap will inevitably be generated at the contact position between the rib plate 51 and the bottom plate 5. The support member 31 fits the rib plate 51 and the bottom plate 5. The connection between the rib plate 51 and the bottom plate 5 forms a relatively closed space at the position where the support member 31 is located. The air in the support member 31 is sucked by the dust suction device The gas promotes the reduction of the pressure inside the support member 31. The welding device provided by the present invention is used for welding the "U"-shaped ribs. After the pressure inside the support member 31 is reduced, the gas flows from the inside of the rib 51 through the gap between the rib 51 and the bottom plate 5 into the support member 31, and brings out the impurities inside the rib 51 to move into the support member 31 and are collected by the dust collection component. After the "U"-shaped rib is welded on the outside, it is still necessary to use special equipment to weld the connection between the rib 51 and the bottom plate 5 inside. The welding device provided by the present invention can clean the welding position on the inside of the rib 51 while cleaning the welding position on the outside of the rib 51, thereby improving the quality of subsequent welding on the inside of the rib 51, and also solving the problem in the related art that it is inconvenient to clean the impurities inside the rib 51 due to the space limitation inside the rib 51, and effectively ensuring the welding strength between the rib 51 and the bottom plate 5.

[0044] Since the overall length of the rib 51 is relatively long, impurities will adhere to the surface of the cleaning roller 1 4 and the cleaning roller 2 42 after a long period of cleaning operation, affecting the cleaning effect. In order to further ensure the cleaning effect of the cleaning roller 1 4 and the cleaning roller 2 42 during continuous operation, the impurities on the surface of the cleaning roller 1 4 and the cleaning roller 2 42 can be cleaned in time during the operation through a vacuuming device.

[0045] Specifically, the outer cover of the cleaning roller 4 is provided with a cover body 41, and the outer cover of the cleaning roller 42 is provided with a cover body 43. The cover body 41 and the cover body 43 are both arc-shaped plates, and the cover body 41 and the cover body 43 are provided with blocking plates at both ends of the length. The two opening ends of the cover body 41 and the cover body 43 are provided with scrapers 432, and each scraper 432 abuts against the cleaning roller 4 and the cleaning roller 42 respectively, that is, when the cleaning roller 4 is rotated into the cover body 41, it first contacts with a scraper 432, and the scraper 432 is inclined toward the inner side of the cover body 41 along the connection end between the cleaning roller 41 and the cover body 41 to its free end, and the scraper 432 is used to block the gap between the cover body 41 and the cleaning roller 4. When the cleaning roller 4 is rotated out relative to the cover body 41, it contacts with another scraper 432, and the scraper 432 is inclined toward the inner side of the cover body 41 along the connection end between the cleaning roller 41 and the cover body 41 to its free end. The end is inclined toward the inner side of the cover body 41, and the scraper 432 is used to fully contact with the cleaning roller 4 to promote the impurities on the cleaning roller 4 to separate from the cleaning roller 4, and the separated impurities are retained in the cover body 41. The cover body 41 is also provided with a connecting hole 1, and the connecting hole 1 is connected to the dust suction port 312 through a connecting pipe. The impurities in the cover body 41 are sucked and collected through the connecting pipe. The connection method between the cover body 43 and the cleaning roller 42 is similar. The cover body 43 is provided with a connecting hole 2 431, and the connecting hole 2 431 is connected to the dust suction port 312 through a connecting pipe. Two channels can be divided at the dust suction port 312. One channel remains connected to the inside of the support member 31 for collecting impurities in the support member 31, and the other channel is connected to the connecting hole 1 and the connecting hole 2 431 for collecting impurities in the cover body 41 and the cover body 2 43.

[0046] Cleaning roller 1 4 and cleaning roller 2 42 are both arranged at a position close to the front end of the support member 31, and cleaning roller 1 4 and cleaning roller 2 42 are arranged adjacent to each other. In order to ensure the suction effect of the dust suction component on impurities in the gap between the rib plate 51 and the bottom plate 5 and to ensure the negative pressure environment inside the support member 31, a sealing block 311 is also provided between cleaning roller 1 4 and cleaning roller 2 42.

[0047] The steel box girder rib welding device provided by the present invention effectively improves the stability of the rib position during the welding process. At the same time, by arranging a cleaning mechanism inside the support member, when the support member moves in contact with the rib, impurities in the welding position and gap between the rib and the bottom plate are cleaned, thereby ensuring the welding quality and improving the welding strength between the rib and the bottom plate.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0050] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A steel box girder rib welding device, comprising a moving mechanism and a clamping mechanism and a welding mechanism installed on the moving mechanism, the welding mechanism is used to weld the rib and the bottom plate, the side facing the rib welding direction is the front side, the clamping mechanism is located at the front side of the welding mechanism, the moving mechanism drives the clamping mechanism and the welding mechanism to move, characterized in that: The clamping mechanism includes a lifting assembly and multiple groups of clamping assemblies. A group of clamping assemblies is provided between any two adjacent ribs. The clamping assembly includes a connecting rod and two supporting members. Both supporting members are connected to the connecting rod through a telescopic adjusting member. The two supporting members are simultaneously attached to the ribs and the bottom plate. The lifting assembly includes a guide frame, a connecting piece and a cylinder. The guide frame and the guide piece are slidably matched. The guide frame is in the shape of a "door". The connecting piece and the guide frame are longitudinally slidably matched. The extended end of the cylinder is fixed to the connecting piece. The upper end of each connecting rod is detachably connected to the connecting piece. When the connecting piece is raised or lowered, each clamping assembly is driven to rise or fall synchronously. A cavity is formed in the support member, and an opening is provided on the support member, and the opening is opposite to the rib plate, the bottom plate and the connection between them. A cleaning mechanism is provided in the support member, and the cleaning mechanism includes a cleaning roller 1, a cleaning roller 2 and a dust suction assembly. The cleaning roller 1 and the cleaning roller 2 are both rotatably matched with the support member, the cleaning roller 1 is attached to the rib plate and rotates relative to the rib plate, the cleaning roller 2 is attached to the bottom plate and rotates relative to the bottom plate, and the dust suction assembly is used to absorb and collect impurities inside the support member; The dust collection assembly includes a dust collection device and a dust collection port, the dust collection port is arranged on the support member and communicated with the interior of the support member, the dust collection device is connected to the dust collection port through a pipe fitting, the outer cover of the cleaning roller 1 is provided with a cover body 1, the outer cover of the cleaning roller 2 is provided with a cover body 2, the cover body 1 is provided with a connecting hole 1 communicated with the interior of the cover body 1, the cover body 2 is provided with a connecting hole 2 communicated with the interior of the cover body 2, and both the connecting hole 1 and the connecting hole 2 are connected to the dust collection port through a connecting pipe; A relatively closed space is formed at the connection between the rib plate and the bottom plate at the position of the support. The air in the support is sucked by the dust collection equipment to promote the reduction of the pressure inside the support. The rib plate is a "U"-shaped rib plate. After the pressure inside the support is reduced, the gas flows from the inside of the rib plate through the gap between the rib plate and the bottom plate into the support, and brings out the impurities inside the rib plate and moves into the support, and is collected by the dust collection component.

2. The steel box girder rib welding device according to claim 1, characterized in that: Both cover body one and cover body two are arc-shaped plates, and sealing plates are provided at both ends of the length of cover body one and cover body two. Both open ends of cover body one and cover body two are provided with scrapers. The scrapers at the two open ends of cover body one abut against cleaning roller one, and the scrapers at the two open ends of cover body two abut against cleaning roller two.

3. The steel box girder rib welding device according to claim 1, characterized in that: The moving mechanism includes a driving member and a guide member. There are two guide members, which are respectively arranged on both sides of the bottom plate. The clamping mechanism and the welding mechanism are slidably matched with the guide members, and the length direction of the guide members is parallel to the length direction of the rib plate.

4. The steel box girder rib welding device according to claim 1, characterized in that: A support plate is fixed to the lower end of the connecting rod, and the support plate slides in contact with the bottom plate.

5. The steel box girder rib welding device according to claim 1, characterized in that: One end of the telescopic adjustment member is hinged to the connecting rod, and the other end of the telescopic adjustment member is hinged to the supporting member.

6. The steel box girder rib welding device according to claim 3, characterized in that: The welding mechanism comprises a bracket and a plurality of welding components. The bracket is slidably matched with the guide member. Each welding component is slidably connected with the bracket in the horizontal and vertical directions at the same time, and each welding component works synchronously.

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