Reinforcement cage welding device for bridge construction

Abstract

The utility model discloses a reinforcement cage welding device for bridge construction, and relates to the technical field of reinforcement cage welding. The driving mechanism is arranged at the middle top end of the base; the first steel bar supporting mechanism is arranged at the top end of the driving mechanism, and the fixing mechanism penetrates through the middle of the first steel bar supporting mechanism; the second rebar supporting mechanism is arranged at the top end of one end of the base; the welding structure is arranged on one side of the second steel bar supporting mechanism; and the feeding frame is arranged at one end of the base. The steel reinforcement cage forming and welding device is reasonable and reliable in structure, automatic forming and welding of a steel reinforcement cage can be achieved under the cooperative use of the driving mechanism, the first steel reinforcement supporting mechanism, the fixing mechanism, the second steel reinforcement supporting mechanism, the welding structure and the feeding frame, the construction efficiency, the welding quality and the overall stability of the steel reinforcement cage are greatly improved, and the practicability is high. And the manual operation difficulty and errors are reduced.

Description

Technical Field

[0001] This utility model relates to the field of steel cage welding technology, and more specifically, to a steel cage welding device for bridge construction. Background Technology

[0002] In the construction of large-scale projects such as roads, bridges, and high-rise buildings, pile driving is a crucial step in foundation construction. Only by ensuring the pile hole depth meets design standards can stable support be provided for subsequent construction. After the pile hole construction is completed, a pre-fabricated reinforcing cage is placed into the hole, and then concrete is poured using a guide pipe inserted into the hole. The reinforcing cage, composed of multiple reinforcing bars connected together by welding, significantly enhances the strength and stability of the structure, ensuring the quality and safety of the project.

[0003] However, existing rebar cage welding devices have many shortcomings in the main rebar fixing process. Traditionally, bolts are used to fix the main rebars to the positioning sleeves. This process requires workers to tighten each bolt individually using auxiliary tools, making it impossible to simultaneously fix multiple main rebars. This not only wastes a significant amount of labor and increases labor costs but also consumes a considerable amount of time, severely impacting construction efficiency.

[0004] For example, Chinese patent application CN222471343U discloses a welding device for steel cages of road bridges, including two fixed plates, two slide rails, and several positioning sleeves. Support components are set at the center of each of the two fixed plates, and the positioning sleeves are arranged in a ring at equal intervals on the two sets of support components. Each of the two fixed plates contains a drive component that rotates the support components. It can simultaneously fix and release multiple main steel bars. However, in actual use, the pressing component needs to be driven by manually rotating a connecting rod to move the limiting component. This manual operation method is inefficient, physically demanding on the operator, and prone to fatigue over long periods. Furthermore, manual operation makes it difficult to ensure consistent force and angle for each operation, easily leading to inconsistent operation and uneven pressing force. Uneven pressing force not only affects the fixing effect of the main steel bars, causing displacement during welding, but also affects the overall quality of the steel cage.

[0005] There are currently no effective solutions to the problems in the relevant technologies. Utility Model Content

[0006] In view of the problems in the related technologies, this utility model proposes a steel cage welding device for bridge construction to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] Therefore, the specific technical solution adopted by this utility model is as follows:

[0008] A steel cage welding device for bridge construction includes: a base; a driving mechanism disposed at the top of the middle part of the base; a first steel bar support mechanism disposed at the top of the driving mechanism; a fixing mechanism disposed through the middle of the first steel bar support mechanism; a second steel bar support mechanism disposed at the top of one end of the base; a welding structure disposed on one side of the second steel bar support mechanism; and a feeding rack disposed at one end of the base.

[0009] Furthermore, in order to cooperate with the drive mechanism and ensure that the drive mechanism drives the first steel bar support mechanism to move, grooves are provided on both sides of the inside of the base, and several strip-shaped racks are provided at the bottom of the inside of the grooves.

[0010] Furthermore, in order to drive the first rebar support mechanism and thus enable the traction of the rebar, ensuring that the rebar can move along a predetermined path and speed, thereby improving the accuracy and quality of rebar welding, the drive mechanism includes a support plate located at the top center of the base. Support columns are provided at the four corners of the bottom of the support plate, and collars are provided at the bottom of the support columns. Sleeve rods are interlaced inside two sets of collars on the same side of the support plate. Both ends of the sleeve rods are provided with a first gear that meshes with a rack. A second gear is sleeved on the middle outer side of one set of sleeve rods. An L-shaped fixing plate is provided at the middle center of the bottom of the support plate. A drive motor is provided at the top of one side of the L-shaped fixing plate, and a third gear that meshes with the second gear is provided on the outer side of the output shaft of the drive motor.

[0011] Furthermore, to achieve the support and placement of the reinforcing bars, thereby ensuring that the reinforcing bars are arranged in a ring and uniformly, and to ensure the quality of subsequent reinforcing cage welding by driving the rotating ring with a rotating motor, the first reinforcing bar support mechanism includes a fixed frame set at the top of the support plate. The fixed frame has a hollow internal structure, and a rotating ring is inserted through the center of the fixed frame. Several auxiliary rollers are set on the outer side of the rotating ring. Several connecting rods are set on the inner wall of the rotating ring. One end of the connecting rod is set with a box, and the side wall of the connecting rod is through which the reinforcing bar support ring is installed. A rotating motor is set on one side of the fixed frame. The output shaft of the rotating motor passes through the inner wall of the fixed frame and is equipped with a fourth gear. An annular groove is opened on the outer side of the rotating ring, and several gear teeth that mesh with the fourth gear are set inside the annular groove.

[0012] Furthermore, to fix one end of the reinforcing bar, the top of the top rod extends outward to automatically tighten the reinforcing bar. An electric telescopic rod drives the moving block, allowing multiple top rods to be driven simultaneously, ensuring uniform force on the reinforcing bar and preventing it from moving or falling off during traction, thus guaranteeing stability during traction. The fixing mechanism includes a moving block inside the box, with several top rods on its outer side. The tops of the top rods sequentially penetrate the outer side of the box, the outer side of the connecting rod, and the inner wall of the rotating ring. One end of the moving block has a connecting shaft penetrating the side wall of the box, and one end of the connecting shaft has an electric telescopic rod. The bottom end of the electric telescopic rod has a fixed bracket connected to the support plate. The moving block has a conical structure, and its outer side has several evenly arranged limiting strips with trapezoidal cross-sections. The bottom end of the top rod is an inclined surface with a limiting groove that mates with the limiting strips. The top end of the top rod has an arc-shaped groove. One end of the piston rod of the electric telescopic rod is connected to one end of the connecting shaft via a rotary joint.

[0013] Furthermore, to support the reinforcing bars, the V-shaped space allows for uniform placement of the reinforcing bars, preventing multiple bars from tangling together and ensuring the stability of the welding. Simultaneously, the spaced rollers save on equipment costs. The feeding rack includes a frame at one end of the base, with several arc-shaped plates on one side of the top of the frame. A rotating cylinder is positioned above the arc-shaped plates, and several mounting plates are positioned on the outer side of the rotating cylinder. Several spacers are positioned on the outer side of the mounting plates, and adjacent spacers form a V-shaped space to prevent the reinforcing bars from getting stuck. Rollers are spaced apart at the ends of the spacers on the mounting plates, moving away from the second reinforcing bar support mechanism.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The present invention has a reasonable and reliable structure. With the cooperation of the drive mechanism, the first steel bar support mechanism, the fixing mechanism, the second steel bar support mechanism, the welding structure and the feeding rack, it can realize the automated forming and welding of the steel bar cage, which greatly improves the construction efficiency, welding quality and overall stability of the steel bar cage, and reduces the difficulty and error of manual operation.

[0016] 2. By setting up a driving mechanism, the first steel bar support mechanism is driven, thereby enabling the traction of the steel bar and ensuring that the steel bar can move along a predetermined path and speed, thus improving the accuracy and quality of steel bar welding.

[0017] 3. By setting up the first steel bar support mechanism, the steel bars are supported and placed, so that the steel bars are arranged in a ring and uniformly. The rotating ring is driven by the rotating motor to rotate stably, thereby ensuring the quality of subsequent steel cage welding.

[0018] 4. By setting up a fixing mechanism, one end of the reinforcing bar is fixed. The top of the top rod extends outward to automatically tighten the reinforcing bar. The electric telescopic rod drives the moving block to move, and multiple top rods are driven simultaneously, ensuring uniform force on the reinforcing bar and preventing it from moving or falling off during traction, thus ensuring the stability of the reinforcing bar during traction.

[0019] 5. By setting up the feeding rack 7, the steel bars are supported. The V-shaped space can make the steel bars evenly placed to avoid multiple steel bars from getting tangled together, thus ensuring the stability of steel bar welding. At the same time, the rollers are set at intervals to save equipment costs. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural schematic diagram of a steel cage welding device for bridge construction according to an embodiment of the present utility model;

[0022] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0023] Figure 3 This is a partial sectional view of a steel cage welding device for bridge construction according to an embodiment of the present utility model;

[0024] Figure 4 yes Figure 2 A magnified view of a section at point B in the middle;

[0025] Figure 5 This is a structural schematic diagram of the first steel bar support mechanism in a steel bar cage welding device for bridge construction according to an embodiment of the present utility model;

[0026] Figure 6 yes Figure 3 A magnified view of a section at point C;

[0027] Figure 7 This is a schematic diagram of the top rod in a steel cage welding device for bridge construction according to an embodiment of the present utility model;

[0028] Figure 8 This is a schematic diagram of the connecting frame in a steel cage welding device for bridge construction according to an embodiment of the present utility model.

[0029] In the picture:

[0030] 1. Base; 101. Groove; 102. Rack; 2. Drive mechanism; 201. Support plate; 202. Support column; 203. Collar; 204. Sleeve rod; 205. First gear; 206. Second gear; 207. L-shaped fixing plate; 208. Drive motor; 209. Third gear; 3. First steel bar support mechanism; 301. Fixed frame; 302. Rotating ring; 3021. Annular groove; 3022. Gear tooth; 303. Auxiliary roller; 304. Connecting rod; 305. Box body; 306. Steel bar support ring; 307. Rotating motor; 30 8. Fourth gear; 4. Fixing mechanism; 401. Moving block; 4011. Limiting strip; 402. Top rod; 4021. Limiting groove; 4022. Arc groove; 403. Connecting shaft; 404. Electric telescopic rod; 405. Fixed bracket; 406. Rotary joint; 5. Second steel bar support mechanism; 6. Welding structure; 601. Circular shelf; 602. Welding gun; 603. Cutting structure; 7. Feeding rack; 701. Frame; 702. Arc plate; 703. Rotary drum; 704. Mounting plate; 705. Partition rod; 706. Roller; 8. Control panel. Detailed Implementation

[0031] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0032] According to an embodiment of the present invention, a steel cage welding device for bridge construction is provided.

[0033] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-8 As shown, the steel cage welding device for bridge construction according to an embodiment of the present utility model includes: a base 1; a driving mechanism 2, disposed at the top of the middle part of the base 1; a first steel bar support mechanism 3, disposed at the top of the driving mechanism 2; a fixing mechanism 4, disposed through the middle of the first steel bar support mechanism 3; a second steel bar support mechanism 5, disposed at the top of one end of the base 1; a welding structure 6, disposed on one side of the second steel bar support mechanism 5; and a feeding rack 7, disposed at one end of the base 1.

[0034] Furthermore, it should be noted that the structure of the second rebar support mechanism 5 is similar to that of the first rebar support mechanism 3. The second rebar support mechanism 5 consists of a fixed frame 301, a rotating ring 302, an auxiliary roller 303, a connecting rod 304, a box 305, and a rebar support ring 306, which can ensure that the rebar can rotate synchronously when it is installed on the second rebar support mechanism 5 and the first rebar support mechanism 3.

[0035] The aforementioned welding structure 6 comprises a ring-shaped shelf 601, a welding gun 602, and a cutting structure 603. The ring-shaped shelf 601 is connected to the fixed frame 301 on the second reinforcing bar support mechanism 5. The welding gun is connected to an external power supply, enabling welding of the reinforcing bar cage. The cutting structure 603 includes several cylinders, all located on one side of the welding gun 602. During operation, the cutting structure 603 cuts the reinforcing bar cage, and the cylinders adjust the cutting height.

[0036] To ensure welding precision, a distance sensor (not shown in the figure) is installed on the outside of the welding torch 602. This distance sensor measures the distance between the welding torch 602 and the surface of the reinforcing cage in real time. It emits a signal of a specific wavelength (such as laser or ultrasound). The signal is reflected back from the surface of the reinforcing cage, and the sensor accurately calculates the distance based on the time difference or phase difference between the signal transmission and reception. During welding, the distance sensor continuously monitors the actual distance and feeds the data back to the control system. If the actual distance deviates from the set value, the control system immediately adjusts the position of the welding torch 602 to restore it to the optimal welding distance, thereby ensuring the stability of the welding arc and the consistency of the welding quality.

[0037] To ensure cutting precision, before cutting, the extension and retraction of the cylinder is precisely controlled according to the design height of the rebar cage and the cutting requirements, so that the cutting tool is in the appropriate cutting position. Then, the cylinder adjusts the height of the cutting tool by extending and retracting, thereby achieving precise cutting of the rebar cage.

[0038] It should be noted that the aforementioned welding structure is also equipped with an automatic wire feeding device (not shown in the figure), which consists of a wire feeding motor, a wire feeding wheel, and a wire guide tube. The wire feeding motor drives the wire feeding wheel to rotate, continuously and stably feeding the welding rod from the welding rod reel to the welding gun 602. The rotation speed of the wire feeding wheel can be adjusted according to the welding parameters to ensure that the wire feeding speed of the welding rod matches the welding speed. In addition, sensors are installed on the welding rod feeding path to monitor the remaining welding rod in real time. When the remaining welding rod is insufficient, the sensor will send a signal to remind the operator to replace the welding rod in time. For example, a photoelectric sensor is used; when the welding rod blocks the light path, the sensor outputs a normal signal; when the welding rod is exhausted and the light path is clear, the sensor outputs an alarm signal.

[0039] The structural composition and working principle of the aforementioned welding structure 6 are existing technologies, and will not be elaborated further here.

[0040] In addition, a control panel 8 is provided on the outside of the second steel bar support mechanism 5, and the control panel 8 contains a PLC (Programmable Logic Controller) controller. The drive mechanism 2, the fixing mechanism 4, and the welding structure 6 are electrically connected to the control panel 8 in sequence. The PLC controller can perform logical control on each action of the welding device according to a preset program. For example, during the welding process, it can control the drive mechanism 2 to move, the fixing mechanism 4 to fix the steel bar, and the welding structure 6 to perform welding in a certain sequence, ensuring that the entire welding process proceeds in an orderly manner.

[0041] With the help of the above-mentioned technical solution of this utility model, the structure of this utility model is reasonable and reliable. With the cooperation of the drive mechanism 2, the first steel bar support mechanism 3, the fixing mechanism 4, the second steel bar support mechanism 5, the welding structure 6 and the feeding rack 7, the automated forming and welding of the steel bar cage can be realized, which greatly improves the construction efficiency, welding quality and overall stability of the steel bar cage, and reduces the difficulty and error of manual operation.

[0042] In one embodiment, for the base 1, grooves 101 are provided on both sides of the interior of the base 1, and a number of strip-shaped racks 102 are provided at the bottom of the interior of the grooves 101, thereby realizing the cooperation with the drive mechanism 2.

[0043] In one embodiment, the drive mechanism 2 includes a support plate 201 located at the top center of the base 1. Support columns 202 are located at the four corners of the bottom of the support plate 201. A collar 203 is located at the bottom of each support column 202. A sleeve rod 204 is inserted into the two sets of collars 203 on the same side of the support plate 201. Both ends of the sleeve rod 204 are equipped with a first gear 205 that meshes with a rack 102. A second gear 206 is fitted onto the outer center of one set of sleeve rods 204. An L-shaped fixing plate 207 is located at the bottom center of the support plate 201. A drive motor 208 is located at the top of one side of the L-shaped fixing plate 207. A third gear 209 that meshes with the second gear 206 is located on the outer side of the output shaft of the drive motor 208. This drives the first rebar support mechanism 3, enabling the traction of the rebar and ensuring that the rebar moves along a predetermined path and speed, thereby improving the accuracy and quality of rebar welding.

[0044] The working principle of the drive mechanism 2 is as follows: the output shaft of the drive motor 208 drives the third gear 209 to rotate, which in turn drives the second gear 206 in the middle of the outer side of the sleeve 204 to rotate, thereby causing the sleeve 204 to rotate. Since the first gear 205 at both ends of the sleeve 204 meshes with the rack 102 in the groove 101 inside the base 1, the rotation of the sleeve 204 will drive the entire drive mechanism 2 to move along the groove 101 of the base 1, thereby driving the first steel bar support mechanism 3 set at its top to move.

[0045] In one embodiment, the first rebar support mechanism 3 includes a fixed frame 301 disposed at the top of the support plate 201. The fixed frame 301 has a hollow interior, and a rotating ring 302 is inserted through the center of the fixed frame 301. Several auxiliary rollers 303 are disposed on the outer side of the rotating ring 302. Several connecting rods 304 are disposed on the inner wall of the rotating ring 302. One end of each connecting rod 304 is provided with a housing 305, and a rebar support ring 306 is passed through the side wall of the connecting rod 304. A rotating motor 307 is provided on one side of the frame 301. The output shaft of the rotating motor 307 passes through the inner wall of the fixed frame 301 and is provided with a fourth gear 308. An annular groove 3021 is provided on the outer side of the rotating ring 302. Several gear teeth 3022 that mesh with the fourth gear 308 are provided inside the annular groove 3021, thereby realizing the support and placement of the reinforcing bars. This allows the reinforcing bars to be arranged in a ring and evenly. The rotating motor 307 drives the rotating ring 302 to rotate stably, thereby ensuring the quality of subsequent welding of the reinforcing cage.

[0046] The working principle of the first steel bar support mechanism 3 is as follows: During the entire welding process, the rotating motor 307 of the first steel bar support mechanism 3 will also be started. The fourth gear 308 on the output shaft of the rotating motor 307 meshes with the gear teeth 3022 in the annular groove 3021 on the outer side of the rotating ring 302, driving the rotating ring 302 to rotate stably in the fixed frame 301, so that the steel bars placed on the steel bar support ring 306 rotate evenly, ensuring the welding quality of the subsequent steel bar cage.

[0047] In one embodiment, the fixing mechanism 4 includes a movable block 401 disposed inside the housing 305. A plurality of push rods 402 are disposed on the outer side of the movable block 401, and the top ends of the push rods 402 sequentially penetrate the outer side of the housing 305, the outer side of the connecting rod 304, and the inner wall of the rotating ring 302. A connecting shaft 403 penetrating the side wall of the housing 305 is disposed at one end of the movable block 401, and an electric telescopic rod 404 is disposed at one end of the connecting shaft 403. A fixed bracket 405 connected to the support plate 201 is disposed at the bottom end of the electric telescopic rod 404. The movable block 401 has a conical structure. Furthermore, in specific applications, the outer wall of the movable block 401 away from the electric telescopic rod 404 cooperates with the inner wall of the housing 305, and the outer side of the movable block 401 is provided with... A number of evenly arranged limiting strips 4011, each with a trapezoidal cross-section; the bottom end of the top rod 402 is set as an inclined surface, and the bottom end of the inclined surface is provided with a limiting groove 4021 that cooperates with the limiting strips 4011; the top end of the top rod 402 is provided with an arc groove 4022; one end of the piston rod of the electric telescopic rod 404 is connected to one end of the connecting shaft 403 through a rotary joint 406, thereby fixing one end of the reinforcing bar. The top end of the top rod 402 extends outward to automatically tighten the reinforcing bar, and the electric telescopic rod 404 drives the moving block 401 to move, so that multiple top rods 402 are driven simultaneously, ensuring uniform force on the reinforcing bar and preventing it from moving or falling off during traction, thus ensuring the stability of the reinforcing bar during traction.

[0048] The working principle of the fixing mechanism 4 is as follows: by activating the electric telescopic rod 404, its piston rod drives the connecting shaft 403 to move through the rotary joint 406, thereby pushing the moving block 401 to move within the box 305. Due to the conical structure of the moving block 401 and the evenly arranged limiting strips 4011 on the outer side, which cooperate with the limiting groove 4021 on the inclined surface at the bottom of the top rod 402, as the moving block 401 moves, multiple top rods 402 will extend outward simultaneously. Then, the arc-shaped groove 4022 at the top of the top rod 402 tightly presses against the reinforcing bar, achieving a stable fixation of one end of the reinforcing bar, preventing it from moving or falling off during subsequent traction, and ensuring the stability of the reinforcing bar during traction.

[0049] In one embodiment, the feeding rack 7 includes a frame 701 disposed at one end of the base 1. A plurality of arc-shaped plates 702 are disposed on one side of the top of the frame 701. A rotating cylinder 703 is disposed above the arc-shaped plates 702. Furthermore, in specific applications, one end of the rotating cylinder 703 is connected to the side wall of the box 305 on the second rebar support mechanism 5. A plurality of mounting plates 704 are disposed on the outer side of the rotating cylinder 703. A plurality of spacers 705 are disposed on the outer side of the mounting plates 704, and a V-shaped space is formed between adjacent spacers 705 to prevent the rebar from tangling. Rollers 706 are spaced apart at the ends of the spacers 705 on the mounting plates 704 along a direction away from the second rebar support mechanism 5. In specific applications, the rollers 706 cooperate with the inner wall of the arc-shaped plates 702 to support the rebar. The formation of the V-shaped space allows for uniform placement of the rebar, preventing multiple rebars from tangling together and ensuring the stability of the rebar welding. Simultaneously, the spaced rollers save equipment costs.

[0050] The working principle of the feeding rack 7 is as follows: A V-shaped space is formed between adjacent partition bars 705. The workers will place the steel bars in the V-shaped space and then pass them through the rotating ring 302 on the second steel bar support mechanism 5 and the first steel bar support mechanism 3 in sequence. Since each steel bar is restricted in an independent V-shaped space, multiple steel bars will not contact or entangle with each other, thus achieving uniform placement of the steel bars. During the rotation of the steel bars, the second steel bar support mechanism 5 will drive the rotating drum 703 to rotate synchronously, thereby ensuring the subsequent welding of the steel bars.

[0051] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0052] In practical applications, firstly, the workers evenly install the steel bars to be welded on the first steel bar support mechanism 3, the second steel bar support mechanism 5, and the feeding rack 7. Then, the steel bars are fixed by the fixing mechanism 4, so that the steel bars are fixed on the first steel bar support mechanism 3. Then, the steel bar cage can be welded under the action of the welding structure 6. At the same time, the driving mechanism 2 drives the steel bars fixed on the first steel bar support mechanism 3 to move, so that the steel bars are conveyed according to the predetermined path and speed, realizing continuous and automated welding of the steel bar cage.

[0053] In summary, with the help of the above-mentioned technical solution of this utility model, the structure of this utility model is reasonable and reliable. With the coordinated use of the drive mechanism 2, the first rebar support mechanism 3, the fixing mechanism 4, the second rebar support mechanism 5, the welding structure 6, and the feeding rack 7, automated forming and welding of the rebar cage can be achieved, greatly improving construction efficiency, welding quality, and the overall stability of the rebar cage, while reducing the difficulty and error of manual operation. By setting the drive mechanism 2, the first rebar support mechanism 3 is driven, thereby enabling the traction of the rebar and ensuring that the rebar moves along a predetermined path and speed, thus improving the accuracy and quality of rebar welding. By setting the first rebar support mechanism 3, the rebar is supported and placed, allowing the rebar to be arranged in a ring and uniformly. Furthermore, the rotating motor 307 drives the rotating ring 302 to rotate stably, thereby ensuring the quality of subsequent rebar cage welding. By setting the fixing mechanism 4, one end of the steel bar is fixed. The top of the top rod 402 extends outward to automatically tighten the steel bar. The electric telescopic rod 404 drives the moving block 401 to move, and the simultaneous driving of multiple top rods 402 ensures that the steel bar is evenly stressed and prevents it from moving or falling off during the traction process, thus ensuring the stability of the steel bar during traction.

[0054] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0055] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steel cage welding device for bridge construction, characterized in that, include: Base (1); The drive mechanism (2) is located at the top center of the base (1); The first steel bar support mechanism (3) is located at the top of the drive mechanism (2). The fixing mechanism (4) is installed through the middle of the first steel bar support mechanism (3); The second steel reinforcement support mechanism (5) is located at the top of one end of the base (1); A welded structure (6) is provided on one side of the second steel reinforcement support mechanism (5); The feeding rack (7) is located at one end of the base (1).

2. The steel cage welding device for bridge construction according to claim 1, characterized in that, The base (1) has grooves (101) on both sides inside, and a number of strip-shaped teeth (102) are provided at the bottom of the grooves (101).

3. The steel cage welding device for bridge construction according to claim 2, characterized in that, The drive mechanism (2) includes a support plate (201) located at the top center of the base (1). Support columns (202) are provided at the four corners of the bottom end of the support plate (201). A collar (203) is provided at the bottom end of the support column (202). A sleeve rod (204) is inserted inside the two sets of collars (203) on the same side of the support plate (201). A first gear (205) that meshes with the rack (102) is provided at both ends of the sleeve rod (204). A second gear (206) is sleeved on the middle of the outer side of one set of sleeve rods (204). An L-shaped fixing plate (207) is provided at the bottom center of the support plate (201). A drive motor (208) is provided at the top of one side of the L-shaped fixing plate (207). A third gear (209) that meshes with the second gear (206) is provided on the outside of the output shaft of the drive motor (208).

4. The steel cage welding device for bridge construction according to claim 3, characterized in that, The first steel bar support mechanism (3) includes a fixed frame (301) set at the top of the support plate (201). The interior of the fixed frame (301) is set as a hollow structure, and a rotating ring (302) is inserted in the middle of the fixed frame (301). Several auxiliary rollers (303) are set on the outside of the rotating ring (302). The inner wall of the rotating ring (302) is provided with a plurality of connecting rods (304), one end of the connecting rod (304) is provided with a box (305), and a steel bar support ring (306) is provided through the side wall of the connecting rod (304). A rotating motor (307) is provided on one side of the fixed frame (301), and the output shaft of the rotating motor (307) passes through the inner wall of the fixed frame (301) and is provided with a fourth gear (308).

5. A steel cage welding device for bridge construction according to claim 4, characterized in that, The outer side of the rotating ring (302) is provided with an annular groove (3021), and the interior of the annular groove (3021) is provided with a plurality of gear teeth (3022) that mesh with the fourth gear (308).

6. A steel cage welding device for bridge construction according to claim 4, characterized in that, The fixing mechanism (4) includes a movable block (401) disposed inside the box (305), and a plurality of top rods (402) are disposed on the outside of the movable block (401), and the top of the top rods (402) passes through the outside of the box (305), the outside of the connecting rod (304) and the inner wall of the rotating ring (302) in sequence. One end of the movable block (401) is provided with a connecting shaft (403) that passes through the side wall of the box (305), one end of the connecting shaft (403) is provided with an electric telescopic rod (404), and the bottom end of the electric telescopic rod (404) is provided with a fixed bracket (405) that is connected to the support plate (201).

7. A steel cage welding device for bridge construction according to claim 6, characterized in that, The movable block (401) has a conical structure, and a number of uniformly arranged limiting strips (4011) are provided on the outer side of the movable block (401), and the cross-section of the limiting strips (4011) is a trapezoidal structure.

8. A steel cage welding device for bridge construction according to claim 7, characterized in that, The bottom end of the top rod (402) is set as an inclined surface, and the bottom end of the inclined surface is provided with a limiting groove (4021) that cooperates with the limiting strip (4011), and the top end of the top rod (402) is provided with an arc groove (4022).

9. A steel cage welding device for bridge construction according to claim 6, characterized in that, One end of the piston rod of the electric telescopic rod (404) is connected to one end of the connecting shaft (403) via a rotary joint (406).

10. A steel cage welding device for bridge construction according to claim 1, characterized in that, The feeding rack (7) includes a frame (701) disposed at one end of the base (1). A plurality of arc-shaped plates (702) are disposed on one side of the top of the frame (701). A rotating cylinder (703) is disposed above the arc-shaped plates (702). A plurality of mounting plates (704) are disposed on the outside of the rotating cylinder (703). A plurality of partition rods (705) are disposed on the outside of the mounting plates (704). A V-shaped space for preventing the reinforcement is formed between adjacent partition rods (705). The ends of a plurality of the spacers (705) located on the mounting plate (704) are provided with rollers (706) spaced apart in a direction away from the second steel bar support mechanism (5).

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