A steel formwork welding positioning device for bridge piers

Abstract

The application relates to the technical field of steel formwork welding, and discloses a steel formwork welding positioning device for bridge piers, which comprises a placing table and a first electric sliding table, the front inner wall and the back inner wall of the first electric sliding table are slidably connected with the front outer wall and the back outer wall of the placing table, a second electric sliding table is slidably connected to the right side of the first electric sliding table, the cylinder is started to extend to make the compression wheel extrude the rib plate, then the motor is started to drive the gear rod to rotate, the gear rod is slid along the inner wall of the arc-shaped groove two through the sliding assembly, the compression wheel is driven to move along the arc-shaped outer wall of the rib plate in the circumferential direction, and when a gap exists between the rib plate and the steel formwork during the movement of the compression wheel, the rib plate is elastically deformed under the radial pressure of the compression wheel until the inner side of the rib plate is attached to the outer wall of the steel formwork, the welding defects caused by the excessively large gap at the attachment position of the rib plate and the steel formwork during the welding process are effectively prevented, and the overall precision of the steel formwork after forming is improved.

Description

Technical Field

[0001] This invention relates to the field of steel formwork welding technology, specifically to a steel formwork welding positioning device for bridge piers. Background Technology

[0002] Steel formwork, as a tool for concrete pouring and shaping, is widely used in the construction engineering field due to its excellent durability, precise concrete pouring and shaping effect and good appearance. In the pouring operation of bridge piers, steel formwork is an indispensable tool. Since bridge piers usually contain complex curved surfaces, it is necessary to use specially designed curved steel formwork during the pouring process.

[0003] When welding the stiffening plates and ribs of the curved steel formwork, due to the special geometry of the curved steel formwork, when the curved ribs are fitted to the curved steel formwork, there will be localized close contact and some areas with large gaps. This makes it difficult for the curved ribs to achieve a tight fit with the steel formwork throughout the entire area. Areas with excessive gaps are prone to defects such as incomplete fusion, weld beads, and burn-through, which reduces the overall forming accuracy of the curved steel formwork. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a steel formwork welding positioning device for bridge piers, including a placement platform and a first electric slide. The inner wall of the front and the inner wall of the back of the first electric slide are slidably connected to the outer wall of the front and the outer wall of the back of the placement platform. A second electric slide is slidably connected to the right side of the first electric slide, and a cylinder is fixedly connected to the top of the second electric slide. The device also includes: The frame mechanism is installed on the top of the placement platform. The frame mechanism includes an arc-shaped frame installed on the top of the placement platform. The bottom of the output end of the cylinder is fixedly connected to the top of the arc-shaped frame. The outer wall of the top of the arc-shaped frame is slidably connected to the inner wall of the first electric slide. The extrusion mechanism is installed on the right side of the arc-shaped frame, and includes a spring connecting frame located on the right side of the arc-shaped frame. The blocking mechanism is installed on the left side of the arc-shaped frame; In use, the operator uses external hoisting equipment to lift the arc-shaped steel template and place it on the top of the placement platform. Then, the external positioning fixture is used to fix the steel template. Subsequently, the arc-shaped rib is placed on top of the steel template so that one end of the rib fits into the steel template. Finally, the two are spot welded together to fix them.

[0005] Preferably, the frame structure also includes: The drive component is slidably disposed on the inner wall of the arc-shaped frame; A sliding component is slidably mounted on the inner wall of the arc-shaped frame; Once fixed, the first electric slide is activated to move the second electric slide and the arc-shaped frame toward the rib plate, causing the spring connecting frame to move to the top of the rib plate.

[0006] Preferably, the extrusion mechanism further includes: A limiting component is fixedly installed on the left side of the spring connecting frame; The rolling assembly is rotatably mounted on the inner wall of the spring connecting frame; The descent of the arc frame will cause the rolling assembly to descend, so that the rolling assembly fits into the rib.

[0007] Preferably, the blocking mechanism includes: The connecting component is installed on the left side of the arc-shaped frame; The connecting component is installed on the inner wall of the connecting component.

[0008] Preferably, the drive assembly includes an arc-shaped groove formed in the inner wall of the arc-shaped frame, and a sliding plate is slidably connected to the left side of the arc-shaped frame; The outer right side of the sliding plate is slidably connected to the inner wall of the arc-shaped groove, and a motor is fixedly connected to the left side of the sliding plate.

[0009] Preferably, the sliding component includes an arc-shaped groove two formed in the inner wall of the arc-shaped frame, a gear rod is slidably connected to the inner wall of the arc-shaped groove two, and an arc-shaped rack is fixedly connected to the right side of the arc-shaped frame; The top tooth surface of the arc-shaped rack meshes with the outer wall of the gear rod. The side of the motor output end near the spring connecting frame is fixedly connected to the side of the gear rod near the sliding plate. The inner wall of the spring connecting frame is slidably connected to the outer wall of the gear rod. When the spring connecting frame moves to the top of the rib plate, the start cylinder extends and pushes the arc frame down. The arc frame will drive the sliding plate, motor, gear rod and spring connecting frame to descend synchronously.

[0010] Preferably, the limiting component includes a piston rod fixedly connected to the side of the spring connecting frame near the arc frame, and an arc groove three is provided on the inner wall of the arc frame, with the inner wall of the arc groove three slidably connected to the outer wall of the piston rod. The spring connecting frame can be limited by the piston rod sliding within the arc-shaped groove.

[0011] Preferably, the rolling assembly includes a pressure roller rotatably connected to the inner wall of the spring connecting frame, a spring fixedly connected to the outer wall of the pressure roller, and a plurality of grooves provided in the inner wall of the spring connecting frame, wherein the outer wall of the spring is engaged with the inner wall of the plurality of grooves. The spring connecting frame will drive the pressure roller to descend until the pressure roller contacts the top of the rib plate and squeezes the rib plate. Then the motor will start to drive the gear rod to rotate. The gear rod will mesh with the arc rack. Since the arc rack is fixed, the gear rod will be subjected to the reaction force of the arc rack tooth surface when it rotates. This reaction force will cause the gear rod to slide along the inner wall of the arc groove. The sliding of the gear rod will drive the spring connecting frame and the pressure roller to move circumferentially along the arc-shaped outer wall of the rib. During the movement of the pressure roller, when there is a gap between the rib and the steel template, the rib is in a suspended state. Under the radial pressure of the pressure roller, the rib undergoes elastic deformation and moves inward until the inner side of the rib is in contact with the outer wall of the steel template. For the already contacted part, the rib no longer moves, and the steel template bears the pressure of the pressure roller, so that the rib and the steel template are continuously in close contact. During the process of the pressure roller squeezing the rib to move, the contact point between the rib and the steel template is continuously welded by manual or robotic means, so as to ensure that the rib and the steel template are in close contact during the welding process, effectively preventing welding defects due to excessive gap between the rib and the steel template, thereby improving the overall accuracy of the steel template after forming. As the pressure roller moves along the outer wall of the rib, if the rib becomes skewed, the conical surfaces at both ends of the pressure roller will contact the skewed part of the rib. The lateral force generated by the conical surfaces will squeeze the skewed part of the rib, thereby correcting the angle of the rib and keeping it vertical. This ensures that the rib can both adhere tightly to the steel template and maintain a vertical state during the welding process, further improving the forming quality of the steel template welding.

[0012] Preferably, the connecting component includes an arc-shaped limiting groove opened on the left side of the arc-shaped frame, and a hydraulic cylinder is slidably connected to the inner wall of the arc-shaped limiting groove on the side near the spring connecting frame. The right outer wall of the hydraulic cylinder is slidably connected to the inner wall of the arc-shaped groove, and the inner wall of the hydraulic cylinder is slidably connected to the outer wall of the piston rod. The inside of the hydraulic cylinder is filled with hydraulic oil. In order to solve the problem that the pressure roller is not easy to fit with the rib plate when it descends, when the pressure roller descends, when one end of the conical surface at both ends of the pressure roller contacts the rib plate, the rib plate will generate a reaction force on the conical surface of the pressure roller because the rib plate is fixed, thereby pushing the pressure roller to move towards or away from the arc frame. The direction of movement is different depending on the contact position between the conical surface at both ends of the pressure roller and the pressure roller. For example, when the pressure roller moves toward the arc-shaped frame, it will drive the spring connecting frame and piston rod to move, causing the spring connecting frame to accumulate rebound force under pressure.

[0013] Preferably, the connecting component includes several flow pipes that are connected through the inner wall of the hydraulic cylinder, and the inner walls of the several flow pipes are slidably connected with ball spring rods; Several spherical spring rods are slidably connected to the inner wall of the arc-shaped limiting groove on the side away from the flow tube; When the piston rod moves, it squeezes the hydraulic oil in the hydraulic cylinder. The hydraulic oil pushes the ball spring rod located below to move, removing the obstruction to the hydraulic oil and allowing it to flow in the flow pipe below. This allows the piston rod to move smoothly until the pressure roller and the rib plate are in contact. As the pressure roller moves along the outer wall of the rib, the spring connecting frame drives the piston rod, hydraulic cylinder, flow pipe, and spherical spring rod to move synchronously. This causes the spherical spring rod to contact the inner wall of the arc-shaped limiting groove, where it is blocked and unable to move further towards the inner wall. Similarly, the piston rod is blocked by the hydraulic oil and cannot move further towards the arc-shaped frame. This ensures that the pressure roller maintains a stable pressing position on the rib, guaranteeing sufficient pressure on the skewed parts of the rib. This effectively prevents the pressure roller from shifting position due to misalignment during the contact process, avoiding multiple adjustments and extended positioning time, thus improving the positioning efficiency of the pressure roller in pressing and correcting the rib.

[0014] The present invention has the following beneficial effects: (1) In this invention, an arc-shaped rib is placed on top of a steel template so that one end of the rib is in contact with the steel template. Finally, the contact point is spot-welded and fixed. The cylinder is started and extended to make the pressure roller squeeze the rib. Then, the motor is started to drive the gear rod to rotate. The gear rod slides along the inner wall of the arc groove through the sliding component, which drives the pressure roller to move circumferentially along the arc outer wall of the rib. During the movement of the pressure roller, when there is a gap between the rib and the steel template, the rib undergoes elastic deformation under the radial pressure of the pressure roller until the inner side of the rib is in contact with the outer wall of the steel template. This effectively prevents welding defects from occurring during the welding process due to the excessive gap between the rib and the steel template, thereby improving the overall accuracy of the steel template after forming.

[0015] (2) In this invention, when the pressure roller moves along the outer wall of the rib plate, once the rib plate is skewed at an angle, the conical surfaces at both ends of the pressure roller will contact the skewed part of the rib plate. The lateral force generated by the conical surfaces will squeeze the skewed part of the rib plate, thereby correcting the angle of the rib plate and keeping the rib plate vertical. This ensures that the rib plate can both stick to the steel template and maintain a vertical state during the welding process, further improving the forming quality of the steel template welding.

[0016] (3) In order to solve the problem that the pressure roller is not easy to fit with the rib when it descends, when the pressure roller descends, when one end of the two conical surfaces of the pressure roller contacts the rib, the rib will generate a reaction force on the conical surface of the pressure roller due to the rib being fixed, thereby pushing the pressure roller to move towards or away from the arc frame until the pressure roller fits with the rib. When the pressure roller moves along the outer wall of the rib, the pressing position of the pressure roller on the rib is kept stable through the connecting component and the connecting component, ensuring that the pressure roller can output sufficient pressing force to the skewed part of the rib, effectively preventing the pressure roller from shifting due to the alignment deviation during the fitting process of the pressure roller and the rib, requiring multiple adjustments and extending the positioning time, thereby improving the positioning efficiency of the pressure roller pressing and correcting the rib.

[0017] (4) In this invention, during the movement of the pressure roller along the outer wall of the rib, the pressure roller will rotate due to the friction between the pressure roller and the rib, and drive the spring to rotate together, so that the spring gradually tightens and accumulates the rebound force. When a single rib is welded, the cylinder is started to retract, so that the pressure roller is separated from the rib, the rebound force of the spring is released, and the pressure roller rotates quickly, which accelerates the convective heat exchange between the pressure roller and the surrounding air, shortens the heat dissipation time of the pressure roller, suppresses the continuous accumulation of heat in the pressure roller, reduces the pressure fluctuation caused by thermal expansion, and ensures the stability of the clamping force during continuous welding operations. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a top view of the overall structure of the present invention; Figure 3 This is a schematic cross-sectional view of the arc-shaped frame of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 This is a cross-sectional schematic diagram of the spring connecting frame part of the present invention; Figure 6 This is a top view of the pressure roller of the present invention; Figure 7 This is a schematic diagram of the left side of the arc-shaped frame structure of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of point B in the middle; Figure 9This is a schematic diagram of the left-side structure of the arc-shaped frame of the present invention; Figure 10 This is a schematic diagram of the working process of the pressure roller of the present invention; Figure 11 This is a schematic diagram of the working process of the gear rod of the present invention.

[0020] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Frame mechanism; 11. Drive assembly; 12. Sliding assembly; 13. Placement platform; 14. First electric slide; 15. Second electric slide; 16. Cylinder; 101. Arc frame; 111. Arc groove one; 112. Sliding plate; 113. Motor; 121. Arc groove two; 122. Arc rack; 123. Gear rod; 2. Extrusion mechanism; 21. Limiting assembly; 22. Rolling assembly; 201. Spring connecting frame; 211. Piston rod; 212. Arc groove three; 221. Pressure roller; 222. Spring spring; 3. Blocking mechanism; 31. Connecting assembly; 32. Connecting assembly; 311. Arc limiting groove; 312. Hydraulic cylinder; 321. Flow pipe; 322. Spherical spring rod. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-11 This invention relates to a steel template welding and positioning device for bridge piers, comprising a placement platform 13 and a first electric slide 14. The inner front wall and inner back wall of the first electric slide 14 are slidably connected to the outer front wall and outer back wall of the placement platform 13. A second electric slide 15 is slidably connected to the right side of the first electric slide 14. A cylinder 16 is fixedly connected to the top of the second electric slide 15. The device also includes: The frame mechanism 1 is installed on the top of the placement platform 13. The frame mechanism 1 includes an arc-shaped frame 101 installed on the top of the placement platform 13. The bottom of the output end of the cylinder 16 is fixedly connected to the top of the arc-shaped frame 101. The outer wall of the top of the arc-shaped frame 101 is slidably connected to the inner wall of the first electric slide table 14. The extrusion mechanism 2 is installed on the right side of the arc frame 101. The extrusion mechanism 2 includes a spring connecting frame 201 installed on the right side of the arc frame 101. The blocking mechanism 3 is installed on the left side of the arc frame 101; In use, operators use external hoisting equipment to lift the curved steel template and place it on top of the placement platform 13, then use external positioning fixtures to fix the steel template in place. Figure 2 As shown in the diagram at position G, the arc-shaped rib is then placed on top of the steel formwork, with one end of the rib fitting against the steel formwork. Finally, the joint is spot-welded to secure it. Figure 2 As shown.

[0023] Framework 1 also includes: Drive component 11 is slidably disposed on the inner wall of the arc frame 101; Sliding component 12 is slidably disposed on the inner wall of the arc frame 101; Once fixed, the first electric slide 14 is activated to drive the second electric slide 15 and the arc frame 101 to move towards the rib plate, so that the spring connecting frame 201 moves to the top of the rib plate.

[0024] The extrusion mechanism 2 also includes: Limiting component 21 is fixedly disposed on the left side of spring connecting bracket 201; Rolling assembly 22 is rotatably disposed on the inner wall of spring connecting bracket 201; The descent of the arc frame 101 will cause the rolling assembly 22 to descend, so that the rolling assembly 22 fits against the rib.

[0025] The blocking mechanism 3 includes: Connection component 31 is installed on the left side of the arc frame 101; The connecting component 32 is installed on the inner wall of the connecting component 31.

[0026] The drive assembly 11 includes an arc-shaped groove 111 formed in the inner wall of the arc-shaped frame 101, and a sliding plate 112 is slidably connected to the left side of the arc-shaped frame 101. The outer right side of the sliding plate 112 is slidably connected to the inner wall of the arc groove 111, and the left side of the sliding plate 112 is fixedly connected to the motor 113.

[0027] The sliding component 12 includes an arc-shaped groove 121 formed in the inner wall of the arc-shaped frame 101. A gear rod 123 is slidably connected to the inner wall of the arc-shaped groove 121, and an arc-shaped rack 122 is fixedly connected to the right side of the arc-shaped frame 101. The top tooth surface of the arc-shaped rack 122 meshes with the outer wall of the gear rod 123. The output end of the motor 113 is fixedly connected to the side of the spring connecting frame 201 and the side of the gear rod 123 is fixedly connected to the side of the sliding plate 112. The inner wall of the spring connecting frame 201 is slidably connected to the outer wall of the gear rod 123. During the process of sliding on the inner wall of the arc groove 121, the gear rod 123 can also rotate. After the spring connecting frame 201 moves to the top of the rib, the starting cylinder 16 extends and pushes the arc frame 101 down. The arc frame 101 will drive the sliding plate 112, the motor 113, the gear rod 123 and the spring connecting frame 201 to descend synchronously.

[0028] The limiting component 21 includes a piston rod 211 fixedly connected to the side of the spring connecting frame 201 near the arc frame 101. The inner wall of the arc frame 101 is provided with an arc groove 212, and the inner wall of the arc groove 212 is slidably connected to the outer wall of the piston rod 211. The spring connecting frame 201 can be limited by the piston rod 211 sliding in the arc groove 212.

[0029] The rolling assembly 22 includes a pressure roller 221 rotatably connected to the inner wall of the spring connecting frame 201. A spring 222 is fixedly connected to the outer wall of the pressure roller 221. A number of grooves are provided on the inner wall of the spring connecting frame 201. The outer wall of the spring 222 is engaged with the inner wall of the grooves. The groove has ten recesses. The spring connecting frame 201 will drive the pressure roller 221 to descend until the pressure roller 221 contacts the top of the rib and squeezes the rib. Figure 10 As shown, the motor 113 is then started to drive the gear rod 123 to rotate. The gear rod 123 will mesh with the arc rack 122. Since the arc rack 122 is fixed, the gear rod 123 is subjected to the reaction force of the tooth surface of the arc rack 122 when it rotates. This reaction force will cause the gear rod 123 to slide along the inner wall of the arc groove 121. The sliding of gear rod 123 will cause spring connecting bracket 201 and pressure roller 221 to move circumferentially along the arc-shaped outer wall of the rib, such as Figure 11 As shown, during the movement of the pressure roller 221, when there is a gap between the rib and the steel template, the rib is suspended. Under the radial pressure of the pressure roller 221, the rib undergoes elastic deformation and moves inward until the inner side of the rib is in contact with the outer wall of the steel template. For the already contacted part, the rib no longer moves. The steel template bears the pressure of the pressure roller 221, so that the rib and the steel template are continuously and tightly in contact. During the process of the pressure roller 221 squeezing the rib to move, the contact point between the rib and the steel template is continuously welded by manual labor or robot. This ensures that the rib and the steel template are tightly in contact during the welding process, effectively preventing welding defects due to excessive gap between the rib and the steel template, thereby improving the overall accuracy of the steel template after forming. During the movement of the pressure roller 221 along the outer wall of the rib, if the rib is angularly deviated, the conical surfaces at both ends of the pressure roller 221 will contact the deviated portion of the rib, such as... Figure 6As shown, the lateral force generated by the cone surface squeezes the skewed part of the rib plate, thereby correcting the angle of the rib plate and keeping it in a vertical state. This ensures that the rib plate can both stick to the steel template and maintain a vertical state during the welding process, further improving the forming quality of the steel template welding.

[0030] The connecting component 31 includes an arc-shaped limiting groove 311 opened on the left side of the arc-shaped frame 101, and a hydraulic cylinder 312 is slidably connected to the inner wall of the arc-shaped limiting groove 311 near the side of the spring connecting frame 201. The right outer wall of the hydraulic cylinder 312 is slidably connected to the inner wall of the arc-shaped groove 212, and the inner wall of the hydraulic cylinder 312 is slidably connected to the outer wall of the piston rod 211. The interior of the hydraulic cylinder 312 is filled with hydraulic oil. The inner wall of the hydraulic cylinder 312 is fixedly connected with a sealing ring 1. The inner wall of the sealing ring 1 is slidably connected to the outer wall of the piston rod 211 to prevent hydraulic oil leakage. To solve the problem that the pressure roller 221 is not easy to fit with the rib plate when it descends, when the pressure roller 221 descends, when one end of the conical surface at both ends of the pressure roller 221 contacts the rib plate, the rib plate will generate a reaction force on the conical surface of the pressure roller 221 due to the rib plate being fixed, thereby pushing the pressure roller 221 to move towards or away from the arc frame 101. The direction of movement is different depending on the contact position between the conical surface at both ends of the pressure roller 221 and the pressure roller. For example, when the pressure roller 221 moves toward the arc frame 101, it will drive the spring connecting frame 201 and the piston rod 211 to move, causing the spring connecting frame 201 to accumulate rebound force under pressure.

[0031] The connecting component 32 includes a plurality of flow pipes 321 that are connected through the inner wall of the hydraulic cylinder 312, and a ball spring rod 322 is slidably connected to the inner wall of each of the plurality of flow pipes 321. Several spherical spring rods 322 are slidably connected to the inner wall of the arc-shaped limiting groove 311 on the side away from the flow pipe 321; Each of the several flow pipes 321 has a sealing ring 2 fixedly connected to its inner wall. The inner walls of the sealing ring 2 are slidably connected to the outer walls of the several spherical spring rods 322 to prevent hydraulic oil leakage. Each spherical spring rod 322 has a ball bearing rotatably connected to its side near the inner wall of the arc-shaped limiting groove 311 to reduce sliding friction. There are two flow pipes 321, two spherical spring rods 322, two sealing rings 2, and two ball bearings. When the piston rod 211 moves, it squeezes the hydraulic oil in the hydraulic cylinder 312, which in turn pushes the lower spherical spring rods 322 to move. Figure 8 As shown, the obstruction to the hydraulic oil is removed, allowing the hydraulic oil to flow in the lower flow pipe 321, thereby enabling the piston rod 211 to move smoothly until the pressure roller 221 is in contact with the rib plate; When the pressure roller 221 moves along the outer wall of the rib, the spring connecting bracket 201 drives the piston rod 211, hydraulic cylinder 312, flow pipe 321, and spherical spring rod 322 to move synchronously, causing the spherical spring rod 322 to contact the inner wall of the arc-shaped limiting groove 311. Figure 9 As shown, the spherical spring rod 322 abuts against the inner wall of the arc-shaped limiting groove 311 and is blocked by the inner wall of the arc-shaped limiting groove 311, preventing it from moving further towards the inner wall. This also prevents the piston rod 211 from moving further towards the arc-shaped frame 101 due to the hydraulic oil, thus keeping the pressure roller 221's pressing position on the rib plate stable. This ensures that the pressure roller 221 can output sufficient pressing force to the skewed part of the rib plate, effectively preventing the pressure roller 221 from shifting its position due to misalignment during the contact process with the rib plate, which would require multiple adjustments and extend the positioning time. This improves the positioning efficiency of the pressure roller 221 in pressing and correcting the rib plate.

[0032] The number of the above structures is not limited. Those skilled in the art can freely set them according to actual needs, as long as the above structures are installed at the connection positions of the corresponding structures.

[0033] One specific application of this embodiment is as follows: In use, the operator uses external hoisting equipment to lift the curved steel template and place it on top of the placement platform 13, and then uses external positioning fixtures to fix the steel template, such as... Figure 2 As shown in the diagram at position G, the arc-shaped rib is then placed on top of the steel formwork, with one end of the rib fitting against the steel formwork. Finally, the joint is spot-welded to secure it. Figure 2 As shown; After fixing, the first electric slide 14 is activated, driving the second electric slide 15 and the arc-shaped frame 101 to move towards the rib plate, causing the spring connecting frame 201 to move to the top of the rib plate. Then, the cylinder 16 extends, pushing the arc-shaped frame 101 downwards. The arc-shaped frame 101 drives the sliding plate 112, motor 113, gear rod 123, and spring connecting frame 201 to descend synchronously. The spring connecting frame 201 drives the pressure roller 221 to descend until the pressure roller 221 contacts the top of the rib plate and presses against it. Figure 10 As shown, the motor 113 is then started to drive the gear rod 123 to rotate. The gear rod 123 will mesh with the arc rack 122. Since the arc rack 122 is fixed, the gear rod 123 is subjected to the reaction force of the tooth surface of the arc rack 122 when it rotates. This reaction force will cause the gear rod 123 to slide along the inner wall of the arc groove 121. The sliding of gear rod 123 will cause spring connecting bracket 201 and pressure roller 221 to move circumferentially along the arc-shaped outer wall of the rib, such as Figure 11As shown, during the movement of the pressure roller 221, when there is a gap between the rib and the steel template, the rib is suspended. Under the radial pressure of the pressure roller 221, the rib undergoes elastic deformation and moves inward until the inner side of the rib is in contact with the outer wall of the steel template. For the already contacted part, the rib no longer moves. The steel template bears the pressure of the pressure roller 221, so that the rib and the steel template are continuously and tightly in contact. During the process of the pressure roller 221 squeezing the rib to move, the contact point between the rib and the steel template is continuously welded by manual labor or robot. This ensures that the rib and the steel template are tightly in contact during the welding process, effectively preventing welding defects due to excessive gap between the rib and the steel template, thereby improving the overall accuracy of the steel template after forming. During the movement of the pressure roller 221 along the outer wall of the rib, if the rib is angularly deviated, the conical surfaces at both ends of the pressure roller 221 will contact the deviated portion of the rib, such as... Figure 6 As shown, the lateral force generated by the cone surface squeezes the skewed part of the rib plate, thereby correcting the angle of the rib plate and keeping it vertical. This ensures that the rib plate can both stick to the steel template and maintain a vertical state during the welding process, further improving the forming quality of the steel template welding. To address the issue of the pressure roller 221 not easily engaging with the rib plate during descent, when the pressure roller 221 descends, if one end of the tapered surface at both ends of the pressure roller 221 contacts the rib plate, the rib plate will exert a reaction force on the tapered surface of the pressure roller 221 due to the rib plate being fixed. This will push the pressure roller 221 to move towards or away from the arc frame 101. The direction of movement will vary depending on the contact position between the tapered surfaces at both ends of the pressure roller 221 and the pressure roller. For example, when the pressure roller 221 moves towards the arc-shaped frame 101, it will drive the spring connecting frame 201 and the piston rod 211 to move, causing the spring connecting frame 201 to accumulate rebound force under pressure. The piston rod 211 will then squeeze the hydraulic oil in the hydraulic cylinder 312, and the hydraulic oil will push the ball spring rod 322 located below to move. Figure 8 As shown, the obstruction to the hydraulic oil is removed, allowing the hydraulic oil to flow in the lower flow pipe 321, thereby enabling the piston rod 211 to move smoothly until the pressure roller 221 is in contact with the rib plate; When the pressure roller 221 moves along the outer wall of the rib, the spring connecting bracket 201 drives the piston rod 211, hydraulic cylinder 312, flow pipe 321, and spherical spring rod 322 to move synchronously, causing the spherical spring rod 322 to contact the inner wall of the arc-shaped limiting groove 311. Figure 9As shown, the spherical spring rod 322 abuts against the inner wall of the arc-shaped limiting groove 311 and is blocked by the inner wall of the arc-shaped limiting groove 311, preventing it from moving further towards the inner wall. This causes the piston rod 211 to be blocked by the hydraulic oil and prevents it from moving further towards the arc-shaped frame 101. This keeps the pressing position of the pressure roller 221 on the rib plate stable, ensuring that the pressure roller 221 can output sufficient pressing force to the skewed part of the rib plate. This effectively prevents the pressure roller 221 from shifting its position due to misalignment during the process of fitting with the rib plate, which would require multiple adjustments and extend the positioning time. This improves the positioning efficiency of the pressure roller 221 in pressing and correcting the rib plate. As the pressure roller 221 moves along the outer wall of the rib, it is affected by the friction between the pressure roller 221 and the rib, causing the pressure roller 221 to rotate and drive the spring 222 to rotate as well. This causes the spring 222 to gradually tighten and accumulate rebound force. When the spring 222 is tightened to its limit, if the pressure roller 221 continues to rotate, the outer end of the spring 222 will disengage from one groove in the spring connecting bracket 201 and engage with the next groove. Figure 5 As shown at point H in the middle; After a single rib is welded, the starting cylinder 16 retracts, driving the arc frame 101, gear rod 123, spring connecting frame 201 and pressure roller 221 to rise, causing the pressure roller 221 to separate from the rib. The rebound force of the spring spring 222 will be released, causing the pressure roller 221 to rotate rapidly, accelerating the convective heat exchange between the pressure roller 221 and the surrounding air. The following problems are effectively avoided: During the rib welding process, heat is conducted to the surface of the pressure roller 221. As a result, after the welding of a single rib is completed, the heat of the pressure roller 221 is not fully dissipated during the welding of the next rib. It continues to absorb heat during the welding of the next rib, causing continuous heat accumulation. As a result, when fixing subsequent ribs, the pressure of the pressure roller 221 on the ribs will increase due to the thermal expansion effect. By applying the above structure, the pressure roller 221 can quickly rotate and dissipate heat after separation, shortening the heat dissipation time of the pressure roller 221, suppressing the continuous accumulation of heat in the pressure roller 221, reducing the pressure fluctuation caused by thermal expansion, and ensuring stable clamping force during continuous welding operations.

[0034] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A steel template welding and positioning device for bridge piers, comprising a placement platform (13) and a first electric slide (14), wherein the inner front wall and the inner back wall of the first electric slide (14) are slidably connected to the outer front wall and the outer back wall of the placement platform (13), and a second electric slide (15) is slidably connected to the right side of the first electric slide (14), and a cylinder (16) is fixedly connected to the top of the second electric slide (15), characterized in that, Also includes: The frame mechanism (1) is installed on the top of the placement platform (13). The frame mechanism (1) includes an arc frame (101) installed on the top of the placement platform (13). The bottom of the output end of the cylinder (16) is fixedly connected to the top of the arc frame (101). The outer wall of the top of the arc frame (101) is slidably connected to the inner wall of the first electric slide (14). The extrusion mechanism (2) is installed on the right side of the arc frame (101), and the extrusion mechanism (2) includes a spring connecting frame (201) installed on the right side of the arc frame (101). A blocking mechanism (3) is installed on the left side of the arc frame (101); When in use, the arc-shaped steel template is hoisted by an external hoisting device and placed on the top of the placement platform (13). Then, the steel template is fixed by an external positioning fixture. Subsequently, the arc-shaped rib is placed on the top of the steel template so that one end of the rib is in contact with the steel template. Finally, the two are spot welded together.

2. The steel formwork welding and positioning device for bridge piers according to claim 1, characterized in that: The frame mechanism (1) also includes: A drive assembly (11) is slidably disposed on the inner wall of the arc frame (101); A sliding component (12) is slidably disposed on the inner wall of the arc-shaped frame (101); After the rib plate is fixed, the starting cylinder (16) extends to push the arc frame (101) down.

3. The steel formwork welding and positioning device for bridge piers according to claim 2, characterized in that: The extrusion mechanism (2) further includes: A limiting component (21) is fixedly disposed on the left side of the spring connecting frame (201); A rolling assembly (22) is rotatably disposed on the inner wall of the spring connecting frame (201); The descent of the arc frame (101) will cause the rolling assembly (22) to descend, so that the rolling assembly (22) fits against the rib.

4. The steel formwork welding and positioning device for bridge piers according to claim 3, characterized in that: The blocking mechanism (3) includes: A connecting component (31) is installed on the left side of the arc frame (101); A connecting component (32) is installed on the inner wall of the connecting component (31).

5. The steel formwork welding and positioning device for bridge piers according to claim 2, characterized in that: The drive assembly (11) includes an arc groove (111) formed in the inner wall of the arc frame (101), and a sliding plate (112) is slidably connected to the left side of the arc frame (101). The right outer wall of the sliding plate (112) is slidably connected to the inner wall of the arc groove (111), and a motor (113) is fixedly connected to the left side of the sliding plate (112).

6. The steel formwork welding and positioning device for bridge piers according to claim 5, characterized in that: The sliding component (12) includes an arc groove two (121) formed on the inner wall of the arc frame (101), and a gear rod (123) is slidably connected to the inner wall of the arc groove two (121). An arc rack (122) is fixedly connected to the right side of the arc frame (101). The top tooth surface of the arc-shaped rack (122) meshes with the outer wall of the gear rod (123), the output end of the motor (113) is fixedly connected to the side of the spring connecting frame (201) near the side of the gear rod (123) near the sliding plate (112), and the inner wall of the spring connecting frame (201) is slidably connected to the outer wall of the gear rod (123). The starting motor (113) drives the gear rod (123) to rotate, so that the gear rod (123) meshes with the arc rack (122). Since the arc rack (122) is fixed, the gear rod (123) slides along the inner wall of the arc groove (121) under the meshing reaction.

7. The steel formwork welding and positioning device for bridge piers according to claim 4, characterized in that: The limiting component (21) includes a piston rod (211) fixedly connected to the side of the spring connecting frame (201) near the arc frame (101). The inner wall of the arc frame (101) is provided with an arc groove three (212), and the inner wall of the arc groove three (212) is slidably connected to the outer wall of the piston rod (211). The spring connecting frame (201) can be limited by the piston rod (211) sliding in the arc groove three (212).

8. The steel formwork welding and positioning device for bridge piers according to claim 7, characterized in that: The rolling assembly (22) includes a pressure roller (221) rotatably connected to the inner wall of the spring connecting frame (201). A spring (222) is fixedly connected to the outer wall of the pressure roller (221). A plurality of grooves are provided on the inner wall of the spring connecting frame (201). The outer wall of the spring (222) is engaged with the inner wall of the plurality of grooves. When the arc frame (101) descends, it will drive the gear rod (123) and the spring connecting frame (201) to descend synchronously. The spring connecting frame (201) will drive the pressure roller (221) to descend. When the pressure roller (221) descends and contacts the rib plate, its conical surface is blocked by the rib plate. The pressure roller (221) then moves laterally to change its position until the pressure roller (221) is in contact with the rib plate.

9. A steel formwork welding and positioning device for bridge piers according to claim 8, characterized in that: The connecting assembly (31) includes an arc-shaped limiting groove (311) opened on the left side of the arc frame (101), and a hydraulic cylinder (312) is slidably connected to the inner wall of the arc-shaped limiting groove (311) near the side of the spring connecting frame (201). The right outer wall of the hydraulic cylinder (312) is slidably connected to the inner wall of the arc groove (212), the inner wall of the hydraulic cylinder (312) is slidably connected to the outer wall of the piston rod (211), and the inside of the hydraulic cylinder (312) is filled with hydraulic oil. When the pressure roller (221) moves, it will drive the spring connecting frame (201) to move, and the spring connecting frame (201) will drive the piston rod (211) to move.

10. A steel formwork welding and positioning device for bridge piers according to claim 9, characterized in that: The connecting component (32) includes a plurality of flow pipes (321) that are connected through the inner wall of the hydraulic cylinder (312), and the inner walls of the plurality of flow pipes (321) are slidably connected with ball spring rods (322). The side of each of the ball spring rods (322) away from the flow tube (321) is slidably connected to the inner wall of the arc-shaped limiting groove (311); When the piston rod (211) moves, it squeezes the hydraulic oil in the hydraulic cylinder (312), and the hydraulic oil pushes the ball spring rod (322) to move, thus removing the obstruction to the hydraulic oil.

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