Reinforcement cage welding positioning clamp

Abstract

The utility model belongs to the technical field of reinforcement cage machining, and particularly relates to a reinforcement cage welding and positioning clamp which comprises a rack and two rollers rotationally installed at the top of the rack, the number of the rollers is two, the two rollers are arranged at intervals in the horizontal radial direction, and a clamping and positioning space used for containing a reinforcement cage is formed between the two rollers. By arranging the two rollers, the reinforcement cage can be positioned while rotating in situ, so that the operation space is saved, the manpower is saved, and the stability of the inspection of the reinforcement cage and the welding operation of auxiliary parts is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel cage processing, and particularly relates to a welding positioning fixture for a steel cage. Background Art

[0002] A steel cage is a steel bar framework in a concrete structure. According to different engineering requirements, it is welded or tied by steel bars of different models and quantities. The steel cage has various structural forms, and the outer contour of its cross-section can be circular, elliptical, triangular, square, and other polygonal structures. Among them, the steel cage with a circular cross-section outer contour is the most widely used. The following steel cages in this application are all steel cages with a circular cross-section outer contour.

[0003] The structures and sizes of steel cages under different construction requirements are different. According to design, transportation, and construction requirements, the steel cage not only includes main bars and stirrups, but also reinforcing bars, hanging parts, positioning parts, and auxiliary parts such as protective layer pads for ensuring the steel cage are welded on it. Due to the different structures of the auxiliary parts and the welding positions of the auxiliary parts on different steel cages, the steel cage rolling welding machine cannot complete the automatic welding of the auxiliary parts of the steel cage. To ensure the utilization rate of the rolling welding machine and the production efficiency of the steel cage, generally, the main bars and stirrups are first welded on the rolling welding machine to form the initial structure of the steel cage, and then the initial structure of the steel cage is lifted from the rolling welding machine to the track at the designated site. The initial structure of the steel cage is manually pushed to reciprocate horizontally along the track to inspect the welding quality of the rolling welding machine, and the welding of the auxiliary parts is completed according to the design drawings. The length of the track should be greater than the perimeter of the cross-section of the steel cage.

[0004] During the above operation process, generally, wooden squares or wedge blocks are used to abut against both sides of the steel cage to position it horizontally and then welding is carried out. The rolling, positioning, and welding of the steel cage need to be completed by multiple people. When the size and quality of the steel cage are large, it is easy to cause operators to be injured by the steel cage, leading to safety accidents. For example, the steel cage used in bridge pile foundation construction is relatively long. Generally, it needs to be welded in sections and then transported to the construction site for splicing. The length of a single-section steel cage is about 15m, the outer diameter is about 1.5m, and the weight is about 2.5 tons. It requires the joint cooperation of many operators to complete the inspection and welding of the auxiliary parts of a single-section steel cage, which wastes manpower, has great safety hazards, and low production efficiency. In addition, most construction sites have limited land area. When welding the auxiliary parts, the required operation space is large, and other operation spaces at the construction site are squeezed, exacerbating the shortage of construction site land. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a welding positioning fixture for a steel cage with a simple structure, which can support and position the steel cage and make it rotate in place, saving manpower and operation floor area, improving production efficiency, and ensuring production safety.

[0006] The technical solution adopted by the present utility model to solve this technical problem is: a welding positioning fixture for steel reinforcement cages, including a frame and a roller arranged at the top of the frame. The roller is rotatably installed on the frame through a rotating shaft; there are two rollers, and the two rollers are arranged at intervals along the horizontal radial direction. A clamping and positioning space for accommodating the steel reinforcement cage is provided between the two rollers.

[0007] Further, a plurality of foot cups are provided on the bottom surface of the frame, and the foot cups are threadedly connected to the frame; through holes are provided on the bases of the foot cups.

[0008] Further, an anti-slip layer is provided on the outer peripheral surface of the roller.

[0009] Further, the two rollers arranged at intervals along the horizontal radial direction form a clamping assembly, and there are multiple groups of the clamping assemblies, and the multiple groups of clamping assemblies are evenly distributed along the axial direction of the roller.

[0010] Further, a slide rail arranged along the horizontal radial direction of the roller is provided on the frame, and a slider is slidably connected to the slide rail. The roller is rotatably installed on the slider; a positioning member for positioning the slider on the slide rail is further included.

[0011] Further, a limiting groove is provided on the slider, and the slide rail is located in the limiting groove on the slider and is slidably connected to the groove wall of the limiting groove;

[0012] The positioning member is a positioning bolt perpendicular to the slide rail. The positioning bolt is threadedly connected to the side wall of the limiting groove, and the end of the screw rod of the positioning bolt abuts against the slide rail to position the slider on the slide rail.

[0013] Further, limiting end plates are provided at both ends of the slide rail, and limiting bolts are threadedly installed on the limiting end plates. The axial direction of the limiting bolts is arranged along the length direction of the slide rail, and the limiting bolts abut against the slider.

[0014] Compared with the prior art, the beneficial effects of the present utility model are: a welding positioning fixture for steel reinforcement cages is provided. By setting two rollers, the steel reinforcement cage can be rotated in place while being positioned, saving operation space, saving manpower, and improving the stability of the inspection and auxiliary part welding operations of the steel reinforcement cage. By setting the slide rail and the slider, the distance between the two rollers arranged at intervals along the horizontal radial direction can be adjusted, changing the width of the clamping and positioning space, so that the present utility model can be used for the welding positioning of steel reinforcement cages with different diameters, increasing the application range of the present utility model and saving costs. Brief Description of the Drawings

[0015] Figure 1 It is a left-view structural schematic diagram of the present utility model;

[0016] Figure 2 is a schematic cross-sectional structure view along the cross-sectional view line A-A; Figure 1

[0017] Figure 3 is a schematic top view structure of the present utility model;

[0018] Figure 4 is a schematic use structure view in the left view direction of the present utility model;

[0019] Reference numerals: 1-frame; 11-foot cup; 2-drum; 3-slide rail; 31-limit end plate; 4-slider; 51-positioning bolt; 52-limit bolt; 9-steel reinforcement cage. Detailed implementation manners

[0020] The present utility model will be further described below in conjunction with the drawings and embodiments. In order to enable those skilled in the art to better understand the present utility model, the present utility model will be further described below in conjunction with the drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0021] As shown in the appended Figures 1-4 figures, a steel reinforcement cage welding positioning fixture includes a frame 1 and a drum 2 arranged on the top of the frame 1. The drum 2 is rotatably installed on the frame 1 through a rotating shaft; there are two drums 2, and the two drums 2 are arranged at intervals along the horizontal radial direction. A clamping and positioning space for accommodating the steel reinforcement cage 9 is provided between the two drums 2. After the steel reinforcement cage 9 welded on the welding machine is hoisted into the clamping and positioning space between the two drums 2, during the welding operation, the steel reinforcement cage 9 is rotated in place to adjust the position of the structure to be welded thereon. While the steel reinforcement cage 9 rotates, the drum 2 rotates relative to it. The two drums 2 always cooperate with each other to support the steel reinforcement cage 9 and position the steel reinforcement cage 9 in the horizontal radial direction. The present utility model realizes positioning while the steel reinforcement cage 9 rotates in place by arranging two drums 2, saving the operation space. The rotation and positioning of the steel reinforcement cage 9 also do not require operators to erect and move the positioning mechanism, saving manpower, and being safe and reliable.

[0022] The frame 1 is used to support and install the drum 2 to ensure the support height of the drum 2. The frame 1 is generally welded by profiles such as steel plates, I-beams, channel steels, and steel pipes. Considering the limited flatness of the construction site, preferably, a plurality of foot cups 11 are provided on the bottom surface of the frame 1. The foot cups 11 are threadedly connected to the frame 1. By rotating the screw on the foot cup 1, the height of the frame 1 from the ground is adjusted, so that the present utility model is applicable to sites with insufficient flatness. As a further preference, through holes are provided on the base of the foot cup 11, and expansion bolts can be used to pass through the through holes thereon to fixedly install the foot cup 11 on the ground to prevent the equipment from tipping over and improve the safety and reliability of equipment use.​

[0023] The roller 2 is used to support and clamp the reinforcement cage 9 in position. Preferably, an anti-slip layer is provided on the outer peripheral surface of the roller 2 to prevent the reinforcement cage 9 from sliding axially along it in case the equipment is not leveled, ensuring the axial positioning of the reinforcement cage 9. Preferably, two rollers 2 arranged at intervals along the horizontal radial direction form a clamping assembly, and multiple groups of such clamping assemblies are provided, with the multiple groups of clamping assemblies evenly distributed along the axial direction of the roller 2. When the reinforcement cage 9 is too long, while ensuring the support and positioning stability of the reinforcement cage 9, the length of the roller is saved and the quality of the equipment is reduced. Multiple groups means at least two groups.

[0024] Preferably, a slide rail 3 is provided on the frame 1 and arranged along the horizontal radial direction of the roller 2. A slider 4 is slidably connected to the slide rail 3, and the roller 2 is rotatably mounted on the slider 4; a positioning member for positioning the slider 4 on the slide rail 3 is further included. By adjusting the position of the slider 4 on the slide rail 3, the distance between two rollers 2 arranged at intervals along the horizontal radial direction is adjusted, changing the size of the clamping and positioning space, enabling the present utility model to be used for the welding positioning of reinforcement cages 9 with different diameters, increasing the applicable range of the present utility model and saving costs.

[0025] The positioning member can be a structure such as a pin inserted into both the slide rail 3 and the slider 4 at the same time, a fastening bolt for threadedly mounting the slider 4 on the slider 4, a stop block fixedly mounted on the slide rail 3, etc. Such structures all require multiple fixing holes to be opened on the slider 4 or the slide rail 3, which is cumbersome to process, the structure is complex, and the fixed position of the slide rail 3 is limited and cannot be adjusted arbitrarily according to the actual situation. Preferably, a limiting groove is provided on the slider 4, the slide rail 3 is located in the limiting groove on the slider 4 and is slidably connected to the groove wall of the limiting groove; the positioning member is a positioning bolt 51 perpendicular to the slide rail 3, and the positioning bolt 51 is threadedly connected to the side wall of the limiting groove. The screw end of the positioning bolt 51 abuts against the slide rail 3 to position the slider 4 on the slide rail 3. When adjusting the position of the roller 2, only need to rotate the positioning bolt 51 to disengage it from the slide rail 3 to change the position of the slider 4 on the slide rail 3. After the slider 4 slides to the designated position, tighten the positioning bolt 51, and the positioning bolt 51 abuts against the slide rail 3 to position the slider 4 and the roller 2 again, and the adjustment is completed. The adjustable range of the slider 4 is large, the structure is simple, and it is convenient to adjust.

[0026] The downward-inclined pressure exerted by the steel cage 9 on the roller 2 will be converted into a horizontal thrust towards the end of the slide rail 3. When the weight of the steel cage 9 is too large, the sum of the frictional force between the positioning bolt 51 and the slide rail 3 and the frictional force between the slide rail 3 and the slider 4 is less than the horizontal thrust received by the roller 2, which will cause the positioning of the slider 4 to fail. The two rollers 2 arranged horizontally in the radial direction will move relatively away from each other along the length of the slide rail 3 with the slider 4, which increases the width of the clamping and positioning space between the two rollers 2, affects the support and positioning height of the steel cage 9, and may even cause the steel cage 9 to fall, leading to safety accidents. Preferably, limiting end plates 31 are provided at both ends of the slide rail 3, and limiting bolts 52 are threadedly installed on the limiting end plates 31. The axial direction of the limiting bolts 52 is arranged along the length direction of the slide rail 3, and the limiting bolts 52 abut against the slider 4. When the positioning bolt 51 fails, the limiting bolts 52 can prevent the slider from sliding towards the end of the slide rail 3, ensure that the distance between the two rollers 2 arranged horizontally in the radial direction remains unchanged, prevent the steel cage 9 from falling, and ensure the safety of the operation.

[0027] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A steel reinforcement cage welding positioning fixture, characterized in that: It includes a frame (1) and a drum (2) arranged on the top of the frame (1). The drum (2) is rotatably mounted on the frame (1) through a rotating shaft; there are two drums (2), and the two drums (2) are arranged at intervals along the horizontal radial direction. A clamping and positioning space for accommodating a steel reinforcement cage (9) is provided between the two drums (2).

2. The steel cage welding positioning fixture according to claim 1, characterized in that: A plurality of foot cups (11) are provided on the bottom surface of the frame (1), and the foot cups (11) are threadedly connected to the frame (1); through holes are provided on the bases of the foot cups (11).

3. The steel cage welding positioning fixture according to claim 1, characterized in that: An anti-slip layer is provided on the outer peripheral surface of the drum (2).

4. The steel cage welding positioning fixture according to claim 1, characterized in that: The two drums (2) arranged at intervals along the horizontal radial direction form a clamping assembly, and there are multiple groups of the clamping assemblies, and the multiple groups of clamping assemblies are evenly distributed along the axial direction of the drum (2).

5. The steel reinforcement cage welding positioning fixture according to any one of claims 1-4, characterized in that: A slide rail (3) arranged along the horizontal radial direction of the drum (2) is provided on the frame (1), a slider (4) is slidably connected to the slide rail (3), and the drum (2) is rotatably mounted on the slider (4); a positioning member for positioning the slider (4) on the slide rail (3) is further included.

6. The steel reinforcement cage welding positioning fixture according to claim 5, characterized in that: A limiting groove is provided on the slider (4), and the slide rail (3) is located in the limiting groove on the slider (4) and is slidably connected to the groove wall of the limiting groove. The positioning member is a positioning bolt (51) perpendicular to the slide rail (3). The positioning bolt (51) is threadedly connected to the side wall of the limiting groove, and the screw end of the positioning bolt (51) abuts against the slide rail (3) to position the slider (4) on the slide rail (3).

7. The steel cage welding positioning fixture according to claim 6, characterized in that: Limiting end plates (31) are provided at both ends of the slide rail (3), and a limiting bolt (52) is threadedly installed on the limiting end plate (31). The axial direction of the limiting bolt (52) is arranged along the length direction of the slide rail (3), and the limiting bolt (52) abuts against the slider (4).

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