A construction welding device for a composite beam bridge with corrugated steel webs

Abstract

The present invention relates to a construction welding device for a composite girder bridge with corrugated steel webs, belonging to the technical field of corrugated steel web welding devices. The present invention includes a chassis, on which there are support beams, a transverse clamping mechanism, a moving drive mechanism and a centering and pressing mechanism. There are multiple support beams, and each support beam is slidably installed on the chassis in the left-right direction; there are multiple groups of transverse clamping mechanisms, which are slidably installed on the chassis in the left-right direction. The transverse clamping mechanism includes two support blocks, and each support block is provided with a clamping arm. The two support blocks can move closer to each other synchronously to drive the clamping arms to clamp on the two straight edges of the corrugated plate; the moving drive mechanism can drive the transverse clamping mechanisms to move closer to each other to drive the clamping arms to press on the support beams; there are multiple groups of centering and pressing mechanisms, and each support beam is provided with a group of centering and pressing mechanisms. The present invention has a wider scope of application, and can clamp and fix multiple corrugated plates at the same time, with higher processing efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of welding devices for corrugated steel webs, and particularly to a construction welding device for a composite girder bridge with corrugated steel webs. Background Art

[0002] A composite girder bridge with corrugated steel webs is a bridge structure form that combines a concrete top plate and bottom plate with corrugated steel webs. This type of bridge has been widely used in modern bridge engineering due to its advantages such as efficient use of materials, reduction of self-weight, and simplification of the construction process.

[0003] A composite girder bridge with corrugated steel webs consists of a concrete top plate, a bottom plate, and corrugated steel webs. Among them, the corrugated steel webs connect the upper and lower concrete plates, providing flexural stiffness and support. The corrugated steel webs increase the sectional moment of inertia through special corrugated shapes, which can improve the shear resistance and overall stability.

[0004] The length of the corrugated steel web is relatively long and is generally formed by welding multiple corrugated plates with shorter lengths. Before welding, it is necessary to position the corrugated plates to improve the welding accuracy and ensure the welding quality.

[0005] In the prior art positioning devices, such as a welding fixing device for corrugated steel webs disclosed in the patent with the authorization announcement number CN219443966U, the device includes a base. Two sliding grooves are opened at the top of the base, and the inner walls of the two sliding grooves are both connected with a bidirectional lead screw through bearings. A servo motor is arranged on the outer wall of one side of the base, and the output shaft of the servo motor is connected with the bidirectional lead screw. A slider is sleeved on the outer wall of the bidirectional lead screw, and two moving platforms are arranged on the top outer wall of the slider. Limiting grooves are opened at the tops of the two moving platforms, and hydraulic cylinders are arranged on both sides of the top outer wall of the moving platform. The piston rod of the hydraulic cylinder is connected with a top plate, and an extrusion mechanism is arranged at the bottom of the top plate. A gantry is arranged at the middle of the top outer wall of the base.

[0006] This device positions the corrugated plates by placing the corrugated plates in the limiting grooves on the moving platforms, then driving the two moving platforms to approach each other so that the two corrugated plates are joined together, and then lowering the top plate to press on the corrugated plates, thereby realizing the positioning of the corrugated plates. However, this device can only position corrugated plates of the same model, and the applicable range is relatively narrow. Moreover, in the actual production process, the corrugated steel web is usually formed by welding more than two corrugated plates. This device can only position two corrugated plates. When the required length of the corrugated steel web is relatively long and needs to be formed by welding a large number of corrugated plates, it is difficult to complete the positioning of multiple corrugated plates at one time using this positioning device. Summary of the Invention

[0007] The present invention provides a construction welding device for a composite girder bridge with corrugated steel webs, so as to solve the technical problems in the prior art that when welding corrugated steel webs, the positioning device cannot position corrugated plates of various different models, and cannot position a large number of corrugated plates simultaneously, resulting in a narrow application range.

[0008] To solve the above problems, the construction welding device for a composite girder bridge with corrugated steel webs provided by the present invention adopts the following technical solutions:

[0009] A construction welding device for a composite girder bridge with corrugated steel webs includes a chassis. A support beam, a transverse clamping mechanism, a moving drive mechanism, and a centering and pressing mechanism are provided on the chassis. There are multiple support beams, and all the multiple support beams extend in the front-rear direction and are arranged at intervals in the left-right direction. Each support beam is slidably mounted on the chassis in the left-right direction;

[0010] On both the left and right sides of each support beam, there is a set of transverse clamping mechanisms respectively. The transverse clamping mechanisms are slidably mounted on the chassis in the left-right direction. The transverse clamping mechanism includes two support blocks arranged symmetrically left and right. At one end of the support block facing away from the other support block, there is a clamping arm. The clamping arm includes a clamping block. There is a gap between the clamping block and the support block in the left-right direction. The two support blocks can move closer to each other synchronously to drive the clamping block to press against the two straight edges of the corrugated plate;

[0011] The moving drive mechanism can drive each transverse clamping mechanism to move closer to each other to drive the clamping block to press against the corresponding support beam. When the clamping block is pushed by the support beam, it can rotate below the top surface of the support block and move towards the corresponding support block, so that the end of the corrugated plate moves above the support beam;

[0012] On each support beam, there is a set of centering and pressing mechanisms. The centering and pressing mechanism includes two pressing components distributed symmetrically front and rear. The two pressing components can move closer to each other synchronously to push the two corrugated plates on the support beam to be centered. The pressing component can also press the corrugated plate against the support beam after the corrugated plate is centered.

[0013] With the above technical solution, a support beam, a transverse clamping mechanism and a centering and pressing mechanism are provided on the chassis. The support beam and the transverse clamping mechanism can slide in the left-right direction. The centering and pressing mechanism is installed on the support beam. When positioning the corrugated plate to be welded, the corrugated plate can be first placed on the transverse clamping mechanism. The transverse clamping mechanism clamps the corrugated plate and aligns the corrugated plate in the front-back direction. Then, each group of transverse clamping mechanisms approach each other under the drive of the moving drive mechanism. Each corrugated plate is driven by the moving drive mechanism to approach each other, and each support beam is finally clamped between two adjacent transverse clamping mechanisms. When the clamping block contacts the support beam, it can rotate to the lower part of the corrugated plate and is pushed by the support beam to move towards the corresponding support block. In this way, the end of the corrugated plate can be lapped on the support beam, so that multiple corrugated plates are spliced together, and the splicing positions are all above the support beam, which is convenient for subsequent welding.

[0014] The centering and pressing mechanism can align each corrugated plate in the left-right direction and press the aligned corrugated plate on the support beam to fix the corrugated plate, making the welding process more stable. This equipment can clamp, splice and position various different types of corrugated plates, with a wider application range, and can splice and position multiple corrugated plates at the same time, with higher positioning efficiency.

[0015] Furthermore, the clamping arm further includes a slider. The slider is elastically slidably installed on the support block in the left-right direction and is non-rotatable relative to the support block. One end of the slider extends to the outside of the support block. The bottom end of the clamping block is rotatably installed on the end of the slider that extends to the outside of the support block, and a first torsion spring is connected between the clamping block and the slider. The bottom end of the clamping block is provided with a slot with an opening facing away from the support block. Driving rods corresponding to the slot are provided on the left and right side walls of the support beam. During the process of the clamping arm approaching the support beam, the driving rod is inserted into the slot and is in screw drive with the clamping block to drive the clamping block to rotate below the top surface of the support block. The support beam pushes the clamping block that has rotated below the top surface of the support block and the slider to move towards the support block, so that the part of the corrugated plate that extends to the outside of the support block moves above the support beam.

[0016] With the above technical solution, during the process of the transverse clamping mechanism approaching the support beam, the driving rod is inserted into the slot, driving the clamping block to rotate downward. The clamping block no longer blocks the end of the corrugated plate, which is convenient for splicing the corrugated plate. The slider can slide left and right, so that after the clamping block rotates downward, the clamping arm can be pushed by the support beam to move towards the support block, so that the end of the corrugated plate can move above the support beam, with a simple and ingenious structure.

[0017] Furthermore, the transverse clamping mechanism further includes a bracket and a double-headed clamping cylinder. The bracket is slidably installed on the chassis in a left-right guiding manner. Two support blocks are slidably installed on the bracket in the left-right direction. Two output ends of the double-headed clamping cylinder are respectively connected to the two support blocks to drive the two support blocks to approach or move away from each other synchronously.

[0018] Adopting the above technical solution, a double-headed clamping cylinder is used to drive two support blocks to approach or move away from each other, with a simple structure and more convenient equipment assembly.

[0019] Furthermore, guiding slopes are provided on both the left and right sides of the top of the support beam, and the two guiding slopes on the support beam are spaced apart from each other from top to bottom.

[0020] Adopting the above technical solution, it is convenient to move the end of the corrugated plate above the support beam.

[0021] Furthermore, the pressing assembly includes a first pushing member and a second pushing member arranged at intervals in the front-back direction. Both the first pushing member and the second pushing member are slidably installed on the support beam in the front-back guiding direction. The first pushing member is located on the side closer to the center of the support beam. An elastically deformable member I that can expand and contract in the front-back direction is connected between the first pushing member and the second pushing member. A pressing rod is provided at the top of the first pushing member. The middle of the pressing rod is rotatably installed on the first pushing member along a rotation axis extending in the left-right direction, and a torsion spring II is connected between the pressing rod and the first pushing member. A pushing block is provided at the top of the second pushing member. On the side of the pushing block facing the first pushing member, there is a pushing inclined surface that slopes downward and toward the first pushing member.

[0022] Adopting the above technical solution, an elastically deformable member I is connected between the first pushing member and the second pushing member. During the process of the two pressing assemblies approaching each other, the two first pushing members first push the corrugated plate to center the corrugated plate. After the corrugated plate is clamped between the two first pushing members, the resistance received by the first pushing member increases, the elastically deformable member I starts to be compressed, and the second pushing member starts to approach the first pushing member. During this process, the pushing block moves toward the pressing rod, and the pushing inclined surface lifts the end of the pressing rod toward the first pushing member upward, and the other end of the pressing rod moves downward to press the corrugated plate against the support beam, realizing the fixation of the corrugated plate. In this way, the position of the corrugated plate is more stable during the subsequent welding process and will not shift.

[0023] Furthermore, the first pushing member includes two first pushing blocks that are symmetric and spaced apart left and right. The two first pushing blocks are relatively fixed in the front-back direction. There is a gap between the first pushing block and the top surface of the support beam. The second pushing member includes two second pushing blocks that are symmetric and spaced apart left and right. The two second pushing blocks are relatively fixed in the front-back direction. There is a gap between the second pushing block and the top surface of the support beam. The gap area between the first pushing block and the top surface of the support beam communicates with the gap area between the second pushing block and the top surface of the support beam to form a receiving groove for receiving the arc striking plate. A baffle is provided at the rear end of the second pushing block. When the two pressing assemblies approach each other, the arc striking plates in the two pressing assemblies are pushed by the baffle to approach each other.

[0024] With the above technical solution, before starting the centering and pressing mechanism, the arc striking plate is first inserted into the receiving groove. Then, during the process of the pressing components approaching each other, the arc striking plate is driven towards the corrugated plate. While the corrugated plate is centered and pressed and fixed, the arc striking plate is pressed against the corrugated plate and fixed to the corrugated plate by the mechanical structure. Before welding the corrugated plate, there is no need to fix the arc striking plate to the corrugated plate by welding, which can save welding materials. When the arc striking plate needs to be cut after the corrugated plate welding is completed, since the arc striking plate and the corrugated plate are only adhered at the arc striking position, it is more convenient to cut, the cutting efficiency is higher, and the wear on the cutting tool is less.

[0025] Furthermore, the centering and pressing mechanism further includes a double-headed centering cylinder, which is installed on the support beam, and the two output ends of the double-headed centering cylinder are respectively connected to two push members II in two groups of pressing components.

[0026] With the above technical solution, the double-headed centering cylinder is used to drive the two groups of pressing components to approach or move away from each other synchronously, with a simple structure and convenient equipment assembly.

[0027] Furthermore, a movable frame spanning the chassis in the front-rear direction is also installed on the chassis. The movable frame is movably installed on the chassis in the left-right direction, and a welding machine capable of moving back and forth is provided on the movable frame.

[0028] With the above technical solution, the welding machine is installed on the movable frame, which is convenient for the welding machine to walk back and forth in the left-right direction to weld at the splicing positions of various parts of multiple corrugated plates.

[0029] The beneficial effects of a construction welding device for a corrugated steel web composite girder bridge provided by the present invention are as follows: By setting the transverse clamping mechanism and the centering and pressing mechanism, it is possible to clamp, assemble and fix corrugated plates of various different models, with a wider scope of application. By setting a support beam that can move left and right and installing the transverse clamping mechanism on the chassis in a left-right movable manner, multiple corrugated plates can be clamped and positioned simultaneously. After all the corrugated plates are positioned, welding is performed at each splicing position, which can improve the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] By referring to the drawings and reading the following detailed description, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become easily understandable. In the drawings, several embodiments of the present invention are shown in an exemplary rather than restrictive manner, and the same or corresponding reference numerals represent the same or corresponding parts, where:

[0031] Figure 1 is a structural schematic diagram of a construction welding device for a corrugated steel web composite girder bridge provided by the present invention Figure 1 ;

[0032] Figure 2 Structural schematic of a construction welding device for a composite beam bridge with corrugated steel webs provided by the present invention Figure 2 ;

[0033] Figure 3 Partial structural schematic of a construction welding device for a composite beam bridge with corrugated steel webs provided by the present invention Figure 1 ;

[0034] Figure 4 Partial structural schematic of a construction welding device for a composite beam bridge with corrugated steel webs provided by the present invention Figure 2 ;

[0035] Figure 5 Structural schematic of a pressing component in a construction welding device for a composite beam bridge with corrugated steel webs provided by the present invention Figure 1 ;

[0036] Figure 6 Structural schematic of a pressing component in a construction welding device for a composite beam bridge with corrugated steel webs provided by the present invention Figure 2 ;

[0037] Figure 7 Cross-sectional view at the support block of a construction welding device for a composite beam bridge with corrugated steel webs provided by the present invention.

[0038] Explanation of reference numerals:

[0039] 1, chassis; 101, cross beam; 2, transmission screw; 3, movable frame; 301, support track; 302, support; 4, corrugated plate; 5, support beam; 6, first U-shaped fastener; 7, bracket; 701, longitudinal rod; 702, cross rod; 8, double-headed clamping cylinder; 9, support block; 901, stop step; 10, slider; 11, clamping block; 111, straight rod section; 112, cylindrical section; 12, double-headed centering cylinder; 13, first connecting plate; 14, driving rod; 15, second pushing block; 151, second top plate; 152, second bottom plate; 153, second vertical connecting plate; 154, baffle; 16, pushing block; 161, pushing inclined surface; 17, elastic telescopic rod; 18, first pushing block; 181, first top plate; 182, first bottom plate; 183, first vertical connecting plate; 19, pressing rod; 20, arc starting plate; 21, second U-shaped fastener; 22, second connecting plate; 23, second elastic member; 24, shaft section. Detailed implementation manners

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are some embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] The following is one of the embodiments of a construction welding device for a composite girder bridge with corrugated steel webs provided by the present invention:

[0042] As Figures 1-7 shown, a construction welding device for a composite girder bridge with corrugated steel webs includes a chassis 1, a support beam 5, a transverse clamping mechanism, a moving drive mechanism, a centering and pressing mechanism, a movable frame 3 and a welding machine.

[0043] As Figure 1 、 Figure 2 shown, the chassis 1 is horizontally arranged on the ground and includes two cross beams 101 extending left and right and arranged at intervals in the front and rear. A driving screw rod 2 extending left and right is rotatably installed on each of the front and rear sides of the chassis 1, and the chassis 1 is also provided with two motors respectively used to drive the two driving screw rods 2 to rotate. The motors are not shown in the figure.

[0044] There are multiple support beams 5, and the multiple support beams 5 are arranged at intervals in the left - right direction on the chassis 1. Each support beam 5 extends in the front - rear direction, and each support beam 5 is guidingly and slidably assembled on the chassis 1 in the left - right direction. The specific assembly method is as follows: both the front and rear ends of the support beam 5 are connected with a first U - shaped fastener 6. The two first U - shaped fasteners 6 at the front and rear ends of the support beam 5 respectively cover the two cross beams 101. The two first U - shaped fasteners 6 prevent the support beam 5 from detaching from the chassis 1 and enable the support beam 5 to reciprocally slide on the chassis 1 in the left - right direction.

[0045] Both the left and right sides of the top of the support beam 5 are provided with chamfers, and the chamfers form guiding slopes. The two guiding slopes are away from each other from top to bottom. The guiding slopes are used to guide the end of the corrugated plate 4 to move above the support beam 5. The guiding slopes are not shown in the figure.

[0046] As Figure 3 、 Figure 4 shown, two driving rods 14 extending left and right and arranged at intervals in the front and rear are connected to both the left and right side walls of the support beam 5. The driving rods 14 on the left and right sides of the support beam 5 are symmetrically arranged, and the driving rods 14 are provided with threads on the outside.

[0047] There are multiple groups of transverse clamping mechanisms, and one group of transverse clamping mechanisms is provided on each of the left and right sides of each support beam 5. As Figure 3 、 Figure 4As shown, the horizontal clamping mechanism includes a bracket 7, a double-headed clamping cylinder 8, a support block 9, and clamping arms.

[0048] The bracket 7 includes a longitudinal rod 701 and two cross rods 702. The longitudinal rod 701 extends in the front-rear direction, and the two cross rods 702 both extend in the left-right direction. The two cross rods 702 are connected to the middle of the longitudinal rod 701 and are respectively arranged on the left and right sides of the longitudinal rod 701. The longitudinal rod 701 is guidingly and slidably mounted on the chassis 1 in the left-right direction. The specific sliding mounting method is as follows: both the front and rear ends of the longitudinal rod 701 are connected with second U-shaped fasteners 21, and the two second U-shaped fasteners 21 at the front and rear ends of the longitudinal rod 701 respectively cover two cross beams 101.

[0049] The double-headed clamping cylinder 8 is mounted above the two cross rods 702 and is centered with the longitudinal rod 701. The double-headed clamping cylinder 8 has two output ends that can approach or move away from each other synchronously in the left-right direction.

[0050] There are two support blocks 9. The two support blocks 9 are respectively slidably sleeved on the two cross beams 101 in the left-right direction. The two support blocks 9 are arranged symmetrically left and right and are respectively connected to the two output ends of the double-headed clamping cylinder 8. The double-headed clamping cylinder 8 can drive the two support blocks 9 to approach or move away from each other synchronously.

[0051] At one end of each support block 9 facing away from the other support block 9, there are two guiding holes distributed at intervals in the front-rear direction. The guiding holes extend in the left-right direction and have a square cross-section.

[0052] As Figure 2 shown, there are four clamping arms. On one side of each support block 9 facing away from the other support block 9, there are two clamping arms distributed at intervals in the front-rear direction. The clamping arms include sliders 10 and clamping blocks 11.

[0053] The slider 10 extends in the left-right direction and has a square cross-section. The slider 10 is slidably inserted into the above-mentioned guiding hole in the left-right direction. As Figure 7 shown, a second elastic member 23 that can expand and contract in the left-right direction is connected between the bottom surface of the guiding hole and the slider 10. The second elastic member 23 is a compression spring. The second elastic member 23 applies an elastic force to the slider 10 in the direction away from the support block 9, so that half of the slider 10 extends to the outside of the support block 9. On the end surface of the slider 10 extending to the outside of the support block 9, there is a shaft section 24 extending in the left-right direction.

[0054] On the above-mentioned support block 9, there is also a stop step 901 for blocking the slider 10 from sliding towards the outside of the guiding hole. The second elastic member 23 presses the slider 10 against the stop step 901 in the direction away from the support block 9. The stop step 901 blocks the sliding of the slider 10, so that the slider 10 can only move towards the inside of the guiding hole and cannot move towards the outside of the guiding hole.

[0055] AsFigure 3 As shown, the clamping block 11 includes a cylindrical section 112 extending left and right of the axis and a straight rod section 111 connected to the cylindrical section 112 and extending radially of the cylindrical section 112. The cylindrical section 112 is longer than the shaft section 24 at the end of the slider 10. The half side of the cylindrical section 112 close to the support block 9 is rotatably mounted on the shaft section 24 and a torsion spring 1 is connected between the shaft section 24. The torsion spring 1 keeps the straight rod section 111 in a vertical state. When the straight rod section 111 is in a vertical state, the top end of the straight rod section 111 is higher than the top surface of the support block 9.

[0056] The other half of the cylindrical section 112 is provided with a slot with an opening facing away from the support block 9. The two slots in the two clamping arms on the same support block 9 respectively correspond to the two driving rods 14 located on the same beam wall in the above-mentioned support beam 5, and the cylindrical section 112 can cooperate with the driving rod 14 through the slot through spiral transmission, that is, the driving rod 14 can drive the cylindrical section 112 to rotate during the process of being inserted into the slot, and the cylindrical section 112 can drive the straight rod section 111 to rotate below the top surface of the support block 9.

[0057] A groove communicating with the guide hole is provided on the supporting block 9 beside the guide hole, and the straight rod section 111 rotated below the top surface of the supporting block 9 can be retracted into the groove when pushed by the supporting block 9 .

[0058] When the slider 10 is stopped by the stopping step 901, the spacing between the side wall of the clamping block 11 facing the support block 9 and the support block 9 is equal to half of the width of the support beam 5 in the left-right direction, so that when the two corrugated plates 4 are placed on the support beam 5, the gap formed by the two corrugated plates 4 is located in the middle of the support beam 5.

[0059] When the transverse clamping mechanism is in use, the corrugated plate 4 is placed on two support blocks 9, and the two ends of the corrugated plate 4 are respectively placed on the two support blocks 9, and then the double-head clamping cylinder 8 is started to drive the two support blocks 9 to approach each other, and the straight rod sections 111 in the clamping arms on the left and right sides are respectively pressed on the straight edges on the left and right sides of the corrugated plate 4, clamping the corrugated plate 4 and aligning the corrugated plate 4 in the front and rear directions.

[0060] The mobile driving mechanism includes a winding motor and a winding drum connected to the winding motor, both of which are arranged on the right side of the chassis 1. A pull rope is wound on the winding drum, which is connected to the longitudinal rod 701 in the leftmost transverse clamping mechanism. The winding motor controls the winding drum to rotate and drives the pull rope to be wound on the winding drum, thereby pulling the leftmost transverse clamping mechanism and the corrugated plate 4 clamped therein to move rightward, pushing each transverse clamping mechanism and the support beam 5 to move rightward to each other, thereby realizing the splicing of multiple corrugated plates 4. The mobile driving mechanism can be independently arranged on the outside of the chassis 1, and its structure is not shown in the figure.

[0061] likeFigure 3 , Figure 4 As shown, there are multiple sets of centering and pressing mechanisms. One set of centering and pressing mechanism is installed on each support beam 5. The centering and pressing mechanism includes a double-headed centering cylinder 12 and a pressing assembly.

[0062] The double-headed centering cylinder 12 is installed at the bottom of the support beam 5 and is centered with the support beam 5 in the front-back direction. The double-headed centering cylinder 12 has two output ends that can move synchronously closer to or away from each other in the front-back direction. Two first connecting plates 13 are respectively connected to the two output ends of the double-headed centering cylinder 12. The first connecting plate 13 is in a U shape with the opening facing upwards. The first connecting plate 13 is buckled on the outside of the support beam 5 from top to bottom through the U-shaped notch.

[0063] There are two sets of pressing assemblies. The two sets of pressing assemblies are symmetrically installed on the support beam 5 in the front-back direction. The pressing assembly includes a first pushing member, a second pushing member, a first elastic member, a pressing rod 19, and a pushing block 16.

[0064] As Figure 5 , Figure 6 shown, the first pushing member and the second pushing member are arranged at intervals in the front-back direction, and the first pushing member is located on the side closer to the center of the support beam 5.

[0065] The first pushing member includes two symmetrically arranged and spaced-apart first pushing blocks 18 on the left and right. The two first pushing blocks 18 are both slidably installed on the support beam 5 in the front-back direction and are respectively located on the left and right sides of the support beam 5. The first pushing block 18 includes a first top plate 181, a first bottom plate 182, and a vertical connecting plate 183. The first top plate 181 is located above the first bottom plate 182 and is parallel to the first bottom plate 182. The vertical connecting plate 183 is connected between the first top plate 181 and the end of the first bottom plate 182 far from the support beam 5.

[0066] The first pushing block 18 is slidably installed on the support beam 5 through the first bottom plate 182 for front-back guiding. The specific connection method is: a T-shaped slider 1 is connected to the end of the first bottom plate 182 facing away from the vertical connecting plate 183. Strip-shaped chutes with a T-shaped cross-section extending in the front-back direction are provided on the left and right side walls of the support beam 5. The T-shaped slider 1 is inserted into the strip-shaped chute and can slide back and forth along the strip-shaped chute. When the first bottom plate 182 is slidably installed on the support beam 5 for guiding, the first top plate 181 is located above the support beam 5 and there is a gap between the first top plate 181 and the top surface of the support beam 5.

[0067] The second pusher includes two symmetrically arranged and spaced-apart pusher blocks 15 on the left and right. Both pusher blocks 15 are slidably mounted on the support beam 5 in the front and rear directions and are respectively located on the left and right sides of the support beam 5. The pusher block 15 includes a second top plate 151, a second bottom plate 152, a vertical connecting plate 153, and a baffle 154. The second top plate 151 is located above the second bottom plate 152 and is parallel to the second bottom plate 152. The vertical connecting plate 153 is connected between the ends of the second top plate 151 and the second bottom plate 152 that are far from the support beam 5. The baffle 154 is connected between the ends of the second top plate 151 and the second bottom plate 152 that face away from the first pusher.

[0068] The pusher block 15 is slidably mounted on the support beam 5 through the second bottom plate 152 in the front and rear directions for guiding. The specific connection method is as follows: A T-shaped slider 2 is provided at the end of the second bottom plate 152 that faces away from the vertical connecting plate 153, and the T-shaped slider 2 is inserted into the corresponding strip-shaped chute. The second top plate 151 is located above the support beam 5 and there is a gap between the second top plate 151 and the top surface of the support beam 5. Both second bottom plates 152 in the second pusher are connected to the first connecting plate 13.

[0069] As Figure 3 、 Figure 4 shown, both second bottom plates 182 in the first pusher are connected to the second connecting plate 22. The second connecting plate 22 has the same structure as the first connecting plate 13 and is buckled on the support beam 5 from bottom to top. The driving end of the double-headed centering cylinder 12 passes through the second connecting plate 22 and is connected to the first connecting plate 13.

[0070] The spaced areas between the top surfaces of the support beam 5 and each first top plate 181 and the spaced areas between the top surfaces of the support beam 5 and each second top plate 151 are interconnected to form a receiving groove for receiving the arc-striking plate 20. The arc-striking plate 20 can be inserted into the receiving groove from the side of the first pusher that faces away from the second pusher. The width dimension of the arc-striking plate 20 in the front and rear directions is smaller than the width dimension of the receiving groove in the front and rear directions.

[0071] There are multiple first elastic members. The first elastic members are elastic telescopic rods 17 extending in the front and rear directions. Two elastic telescopic rods 17 arranged at intervals up and down are connected between each pusher block 18 and the corresponding pusher block 15 on the other side. The elastic telescopic rod 17 can contract only when subjected to a large acting force, so that only when the two corrugated plates 4 laid on the support beam 5 are clamped by the two first pushers on the support beam 5, the extrusion force received by the first pusher is sufficient to cause the elastic telescopic rod 17 to contract.

[0072] There are two pressure rods 19. The two pressure rods 19 are respectively installed on the tops of the two pusher blocks 18. The middle of the pressure rod 19 is rotatably mounted on the first top plate 181 in the pusher block 18 around the rotation axis extending left and right, and a second torsion spring is connected between the pressure rod 19 and the first top plate 181. The second torsion spring keeps the pressure rod 19 in a horizontal state.

[0073] There are two push blocks 16, which are respectively mounted on the top plate 2 151 of the two top push blocks 2 15. The side of the push block 16 facing the top push piece 1 is provided with a push inclined surface 161, which is inclined from top to bottom toward the top push piece 1. When the front and rear ends of the two corrugated plates 4 on the support beam 5 are clamped and aligned by the top push piece 1 on the front and rear sides of the support beam 5, the top push piece 2 begins to approach the top push piece 1, so that the push block 16 pushes the pressure rod 19 through the push inclined surface 161, so that the end of the pressure rod 19 facing the top push piece 2 is lifted upward, so that the end of the pressure rod 19 facing away from the top push piece 2 swings downward to press the corrugated plate 4 against the support beam 5.

[0074] like Figure 1 , Figure 2 As shown, the movable frame 3 is installed on the base frame 1, and the movable frame 3 includes a support rail 301 extending forward and backward and supports 302 respectively connected to the bottom of the front and rear ends of the support rail 301. The two supports 302 are respectively spirally mounted on the two driving screws 2. When the driving screw 2 rotates, it can drive the two supports 302 to move forward and backward, thereby driving the support rail 301 to move forward and backward.

[0075] The welding machine is installed on the support rail 301 and can move forward and backward along the support rail 301. The welding machine adopts a submerged arc welding machine. This equipment is a prior art and will not be described in detail here.

[0076] When the present invention is in use, a suspension mechanism is first used to place multiple corrugated plates 4 on multiple sets of transverse clamping mechanisms, and the left and right ends of the corrugated plates 4 are respectively placed on two support blocks 9 in the transverse clamping mechanism, and then the double-head clamping cylinder 8 is started to drive the two support blocks 9 to approach each other, and the clamping arms on both sides to approach each other, and finally the straight rod sections 111 in the clamping arms on both sides are pressed against the straight edges on the left and right sides of the corrugated plates 4, clamping the corrugated plates 4 and aligning the corrugated plates 4 in the front and rear directions.

[0077] After the clamping is completed, the moving drive mechanism drives each group of lateral clamping mechanisms to move towards the right end of the chassis 1, causing each group of lateral clamping mechanisms to approach each other, and the lateral clamping mechanisms drive multiple corrugated plates 4 to approach each other. During the movement, the support beam 5 first contacts the lateral clamping mechanism on its left side, and then is driven to contact the lateral clamping mechanism on its right side, and finally is clamped by the lateral clamping mechanisms on both sides. During the process of the lateral clamping mechanism approaching the support beam 5, the driving rod 14 on the support beam 5 is inserted into the corresponding slot, driving the clamping block 11 to rotate, so that the straight rod section 111 rotates to the horizontal state, and the straight rod section 111 no longer blocks the outside of the corrugated plate 4. The lateral clamping mechanism and the support beam 5 continue to approach each other, and the slider 10 is pushed by the support beam 5 and moves towards the inside of the guiding hole. During this process, the end of the corrugated plate 4 gradually moves onto the top surface of the support beam 5. Finally, two corrugated plates 4 are placed on each support beam 5, and the ends of the two corrugated plates 4 are mutually attached, realizing the splicing of the corrugated plates 4.

[0078] After the splicing is completed, each group of double-headed centering cylinders 12 is started simultaneously. The two pressing components in each group of centering and pressing mechanisms approach each other synchronously. The corrugated plate 4 is first centered by being clamped by two pushing members in the two pressing components. Then, the pushing member two continues to move towards the pushing member one. The pushing block 16 lifts the end of the pressure rod 19 close to the pushing member two upward through the pushing inclined surface 161, driving the other end of the pressure rod 19 to move downward, so that the pressure rod 19 presses the corrugated plate 4 onto the support beam 5 from top to bottom, realizing the clamping and fixing of the corrugated plate 4. While the pushing member two moves towards the pushing member one, the arc starting plate 20 is pushed onto the two centered corrugated plates 4, so that the arc starting plate 20 is pressed against the front and rear side walls of the butt joint position of the two spliced corrugated plates 4 in the front-rear direction.

[0079] After the fixing is completed, welding can be started. The movable frame 3 walks left and right on the chassis 1, moves to each support beam 5 in turn, and enables the welding machine to weld at the splicing position of the corrugated plate 4, so that multiple corrugated plates 4 are connected into one body by welding. When welding, start welding from one of the arc starting plates 20 on the support beam 5, pass through the weld formed at the splicing position of the corrugated plate 4, and then move to the other arc starting plate 20 to ensure better welding quality at the weld position.

[0080] After the welding is completed, the centering and pressing mechanism resets. The suspended mechanism is used to move the multiple welded corrugated plates 4 to the working position of the next process. At this time, the winding drum can be controlled to release the pulling rope, and the operator manually pushes each lateral clamping mechanism and the support beam 5 to reset.

[0081] The present invention can clamp and fix corrugated plates 4 of various sizes, with a wider application range. It can also clamp and fix multiple corrugated plates 4 simultaneously, improving the processing efficiency.

[0082] In this embodiment, the moving drive mechanism includes a winding motor and a winding drum. In other embodiments, when the number of corrugated plates 4 to be spliced is small, the moving drive mechanism may employ a plurality of linearly driving cylinders arranged in parallel, and the driving output end of the linearly driving cylinder is connected to the vertical rod 701 in the leftmost transverse clamping mechanism.

Claims

1. A construction welding device for a corrugated steel web composite beam bridge, comprising a base frame, characterized in that: The chassis is provided with a support beam, a transverse clamping mechanism, a moving drive mechanism and a centering pressing mechanism. There are multiple support beams, which extend in the front-to-back direction and are arranged at intervals in the left-to-right direction. Each support beam is slidably mounted on the chassis in the left-to-right direction. Each support beam is provided with a set of transverse clamping mechanisms on both sides, and the transverse clamping mechanisms are slidably installed on the bottom frame. The transverse clamping mechanisms include two support blocks arranged symmetrically on the left and right sides, and a clamping arm is provided at one end of the support block facing away from the other support block. The clamping arm includes a clamping block, and a gap is provided between the clamping block and the support block in the left and right directions. The two support blocks can be synchronously approached to each other to drive the clamping blocks to be pressed against the two straight edges of the corrugated plate; The mobile driving mechanism can drive each lateral clamping mechanism to approach each other, so as to drive the clamping block to be pressed against the support beam on the corresponding side. The clamping block is pushed by the support beam and can rotate to below the top surface of the support block and move toward the corresponding support block, so that the end of the corrugated plate moves above the support beam. Each support beam is provided with a set of centering and clamping mechanisms, which include two clamping assemblies symmetrically distributed front and back. The two clamping assemblies can be synchronously moved close to each other to push the two corrugated plates on the support beam to be centered. The clamping assemblies can also press the corrugated plates onto the support beam after the corrugated plates are centered. The clamping assembly includes a push piece 1 and a push piece 2 arranged at intervals in front and back, and both the push piece 1 and the push piece 2 are installed on the support beam in a forward and backward guiding and sliding manner, the push piece 1 is located on one side close to the center of the support beam, and an elastic piece 1 that can be extended and retracted forward and backward is connected between the push piece 1 and the push piece 2, a pressure rod is provided on the top of the push piece 1, and the middle part of the pressure rod is rotatably installed on the push piece 1 along a rotation axis extending left and right, and a torsion spring 2 is connected between the pressure rod and the push piece 1, and a push block is provided on the top of the push piece 2, and a push inclined surface inclined from top to bottom toward the push piece 1 is provided on the side of the push block facing the push piece 1; the push piece 1 includes a left-right symmetrical and spaced arrangement The two pushing blocks 1 are relatively fixed in the front-to-back direction, and a gap is provided between the pushing block 1 and the top surface of the support beam. The pushing member 2 includes two pushing blocks 2 that are symmetrical and spaced apart. The two pushing blocks 2 are relatively fixed in the front-to-back direction, and a gap is provided between the pushing block 2 and the top surface of the support beam. The gap area between the pushing block 1 and the top surface of the support beam is connected with the gap area between the pushing block 2 and the top surface of the support beam to form an accommodating groove for accommodating the arc-strike plate. A baffle is provided at the rear end of the pushing block 2. When the two clamping assemblies are close to each other, the arc-strike plates in the two clamping assemblies are pushed close to each other by the baffle.

2. The construction welding device for a corrugated steel web composite beam bridge according to claim 1, characterized in that: The clamping arm also includes a slider, which is elastically slidably installed on the support block left and right, and is stopped from rotating with the support block. One end of the slider extends to the outside of the support block, and the bottom end of the clamping block is rotatably installed on the end of the slider extending to the outside of the support block, and a torsion spring is connected to the slider. The bottom end of the clamping block is provided with a slot with an opening facing away from the support block, and the left and right side walls of the support beam are provided with driving rods corresponding to the slots. In the process of the clamping arm and the support beam approaching each other, the driving rod is inserted into the slot and spirally transmitted with the clamping block to drive the clamping block to rotate below the top surface of the support block, and the support beam pushes the clamping block rotated below the top surface of the support block and the slider to move toward the support block, so that the part of the corrugated plate extending to the outside of the support block moves above the support beam.

3. The construction welding device for a corrugated steel web composite beam bridge according to claim 2, characterized in that: The lateral clamping mechanism also includes a bracket and a double-head clamping cylinder. The bracket is installed on the base frame for left and right guiding sliding. Two support blocks are installed on the bracket for left and right sliding. The two output ends of the double-head clamping cylinder are respectively connected to the two support blocks to drive the two support blocks to move closer or farther away from each other synchronously.

4. A construction welding device for a corrugated steel web composite beam bridge according to any one of claims 1 to 3, characterized in that: The left and right sides of the top of the support beam are both provided with guiding slopes, and the two guiding slopes on the support beam are away from each other from top to bottom.

5. The construction welding device for a corrugated steel web composite beam bridge according to claim 1, characterized in that: The centering and clamping mechanism also includes a double-head centering cylinder, which is installed on the support beam. The two output ends of the double-head centering cylinder are respectively connected to the two push pieces in the two sets of clamping components.

6. A construction welding device for a corrugated steel web composite beam bridge according to any one of claims 1 to 3, characterized in that: The bottom frame is also provided with a movable frame which crosses the bottom frame in the front-back direction. The movable frame is movably installed on the bottom frame left and right. The movable frame is provided with a welding machine which can move forward and backward.

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