A method for welding and forming a reinforcement cage

Abstract

The application discloses a reinforcing cage welding forming method, which comprises the following steps: S1, longitudinally moving the reinforcing cage to the distance L0 between the front end and the first welding station, welding the transversely arranged reinforcing bars and the longitudinally arranged reinforcing bars at the first welding station, and L0 is the distance between the end of the reinforcing cage and the adjacent stirrup; S2, intermittently moving the reinforcing cage by a set distance each time, welding the transversely arranged reinforcing bars and the longitudinally arranged reinforcing bars at the first welding station, first bending the transversely arranged reinforcing bars at the first bending forming station, welding the first bent part of the transversely arranged reinforcing bars and the longitudinally arranged reinforcing bars at the second welding station, and so on until the mth transversely arranged reinforcing bar is welded with the longitudinally arranged reinforcing bar at the first welding station, wherein n is greater than or equal to 1, and m is the number of the stirrups on the reinforcing cage. The application is simple in operation and is beneficial to improving the production efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of steel bar processing methods, and in particular to a method for welding and forming steel bar cages. Background Technology

[0002] Existing automated production equipment for steel trusses (or steel cages) is mainly used for the automated production of precast concrete components, such as composite slab triangular trusses. Its characteristic is that the lower part of the triangular truss is open, making automated continuous production relatively easy. However, for truss beams with closed circumferential stirrups and dust collector mesh cages, the circumferential stirrups generally need to be bent and formed separately using a steel bar forming device, then manually fitted onto the welding positions on the longitudinal steel bars, and finally automatically welded by a welding device. This semi-automated production method is inefficient and also involves high labor intensity for workers.

[0003] Chinese patent document CN 115889636 A discloses a steel cage welding device and method, capable of automatically welding and forming steel cages with closed circumferential stirrups. However, this method involves alternating the movement of a welding mechanism and a bending and forming mechanism to the location of the transverse steel bars. After a single transverse steel bar is bent into a circumferential stirrup and welded to the longitudinal steel bar, the longitudinal stirrup moves forward a set distance, and this cycle repeats. Since only a single mechanism is operating at any given time, there is still room for improvement in production efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a simple method for welding and forming steel cages that is conducive to improving production efficiency.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A method for welding and forming a reinforcing cage includes the following steps:

[0007] S1. The longitudinal reinforcement moves forward until the distance between the front end and the first welding station is L0. The first welding station welds a transverse reinforcement to the longitudinal reinforcement, where L0 is the distance between the end of the reinforcement cage and the adjacent stirrup.

[0008] S2. The longitudinal reinforcing bars move forward intermittently, with each movement a set distance. The first welding station welds a transverse reinforcing bar to the longitudinal reinforcing bar. The first bending and forming station bends the transverse reinforcing bar in place for the first time. The second welding station welds the first bent portion of the transverse reinforcing bar in place to the longitudinal reinforcing bar. The nth bending and forming station bends the transverse reinforcing bar in place for the nth time to form a stirrup. This continues until the first welding station welds the mth transverse reinforcing bar to the longitudinal reinforcing bar. Here, n≥2, and m is the number of stirrups on the reinforcing cage.

[0009] As a further improvement to the above technical solution, the method for welding and forming the reinforcing cage also includes the following steps:

[0010] S3. The longitudinal reinforcing bar moves forward a set distance, and the first welding station moves backward a set distance and welds a transverse reinforcing bar to the longitudinal reinforcing bar;

[0011] S4. The longitudinal reinforcing bar moves forward a predetermined distance, and the first bending and forming station moves backward a predetermined distance to perform the first bend of the positioned transverse reinforcing bar;…

[0012] S2n+1, the longitudinal reinforcement moves forward a set distance, the nth welding station moves backward a set distance and welds the (n-1)th bent part of the transverse reinforcement to the longitudinal reinforcement, where n≥2;

[0013] S2n+2, the longitudinal reinforcement moves forward a distance of 2×L0, the longitudinal reinforcement cutting station cuts the longitudinal reinforcement, and the welding station and bending forming station that have moved backward move forward a set distance to reset.

[0014] As a further improvement to the above technical solution: In step S2, the longitudinal reinforcement moves a distance of L1 each time, where L1 is the distance between two adjacent stirrups on the reinforcement cage; steps S3 to S... 2n+1 In the process, the longitudinal reinforcing bars move forward a distance of L1, and the welding and bending stations move backward a distance of 2 × L0 - L1.

[0015] As a further improvement to the above technical solution: m≥4.

[0016] As a further improvement to the above technical solution: the number of longitudinal reinforcing bars in the reinforcing cage is greater than or equal to four. As a further improvement to the above technical solution: the cross-section of the reinforcing cage is a rectangular structure.

[0017] As a further improvement to the above technical solution: the two ends of the stirrup overlap.

[0018] As a further improvement to the above technical solution: n = 2.

[0019] As a further improvement to the above technical solution: the first welding station is a bottom welding station, the second welding station is a side welding station, the first bending and forming station is a side bending and forming station, and the second bending and forming station is a top bending and forming station.

[0020] As a further improvement to the above technical solution: the longitudinal rebar cutting station is a movable and lifting station. Compared with the prior art, the advantages of the present invention are: the rebar cage welding and forming method disclosed in the present invention, after the welding of the first transverse rebar and the longitudinal rebar is completed, the longitudinal rebar moves forward intermittently, and the subsequent welding stations and bending and forming stations are gradually started after the transverse rebar moves into place with the longitudinal rebar, and finally work synchronously. Compared with the existing welding mechanism and bending and forming mechanism that alternately move to the position of the transverse rebar for operation, the production efficiency of rebar cage welding and forming can be greatly improved. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of step S1 in the steel cage welding and forming method of the present invention.

[0022] Figure 2 This is a schematic diagram of step S2 in the steel cage welding and forming method of the present invention.

[0023] Figure 3 This is a schematic diagram of step S3 in the steel cage welding and forming method of the present invention.

[0024] Figure 4 This is a schematic diagram of step S4 in the steel cage welding and forming method of the present invention.

[0025] Figure 5 This is a schematic diagram of step S5 in the steel cage welding and forming method of the present invention.

[0026] Figure 6 This is a schematic diagram of step S6 in the steel cage welding and forming method of the present invention.

[0027] Figure 7 This is a schematic diagram of the process of welding and forming a steel cage.

[0028] Figure 8 This is a three-dimensional structural diagram of the steel cage processed by the present invention.

[0029] Figure 9 This is a schematic diagram of the main structure of the steel cage processed by the present invention.

[0030] The labels in the diagram represent:

[0031] 1. Longitudinal reinforcement; 11. Cutting section; 21. Welding station; 22. Bending and forming station; 23. Longitudinal reinforcement cutting station; 3. Transverse reinforcement;

[0032] 10. Reinforcing cage; 101. Stirrups; 102. Molding core mold. Detailed Implementation

[0033] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0035] In this application, unless otherwise expressly specified and limited, the terms "assembly," "connection," "joining," and "fixing," 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 communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] Figures 1 to 9This invention illustrates an embodiment of the steel cage welding and forming method. In this embodiment, the steel cage 10 comprises four longitudinal steel bars 1, which together form a rectangular cross-section. The steel cage 10 contains nine stirrups 101, and there are two welding stations 21 and two bending and forming stations 22. For a single transverse steel bar 3, the first welding station 21 welds the transverse steel bar 3 to the bottom surface of the two lower longitudinal steel bars 1. The first bending and forming station 22 bends both ends of the transverse steel bar 3 upwards into a U-shape. Then, the second welding station 21 welds both ends of the transverse steel bar 3 to the outer surfaces of the two upper longitudinal steel bars 1. Finally, the second bending and forming station 22 bends the two ends of the U-shaped transverse steel bar 3 again to form a closed annular stirrup 101. This method is convenient to operate and has high welding and bending efficiency. Preferably, the two ends of the stirrup 101 overlap to better utilize the mechanical properties of the stirrup 101. Of course, in other embodiments, the stirrups 101 can also be non-closed open structures, and the number of longitudinal steel bars 1 in the steel cage 1 and the cross-sectional shape formed may also be different, such as other polygonal structures. The number of welding stations 21 and bending and forming stations 22 may also be different, and the bending and forming process may also be different. In other embodiments, the length of the steel cage 10 may also be different, and the number of stirrups 101 needs to be adjusted accordingly (the number of stirrups 101 m is generally not less than 4).

[0038] The steel cage welding and forming method of this embodiment includes the following steps:

[0039] S1. The longitudinal steel bar 1 moves forward until the distance between its front end and the first welding station 21 is L0. The first welding station 21 welds a transverse steel bar 3 to the longitudinal steel bar 1, where L0 is the distance between the end of the steel cage 10 and the adjacent stirrup 101.

[0040] S2. The longitudinal reinforcing bar 1 moves forward intermittently, with each movement being a distance of L1. The first welding station 21 welds a transverse reinforcing bar 3 to the longitudinal reinforcing bar 1. The first bending and forming station 22 bends the positioned transverse reinforcing bar 3 for the first time (the first bending and forming station 22 does not operate before the transverse reinforcing bar 3 is in place, and the subsequent stations are the same). The second welding station 21 welds the first bent portion of the positioned transverse reinforcing bar 3 to the longitudinal reinforcing bar 1. The second bending and forming station 22 bends the positioned transverse reinforcing bar 3 for the second time to form a closed ring stirrup 101. This continues until the first welding station 21 welds the 9th transverse reinforcing bar 3 to the longitudinal reinforcing bar 1. Here, L1 is the distance between two adjacent stirrups 101 on the reinforcing cage 10. Of course, in other embodiments, if the stirrups 101 on the reinforcing cage 10 are arranged unequally, the forward movement distance of the longitudinal reinforcing bar 1 can be adjusted accordingly.

[0041] In this embodiment, after the welding of the first transverse steel bar 3 and the longitudinal steel bar 1 is completed, the longitudinal steel bar 1 moves forward intermittently. The subsequent welding stations 21 and bending stations 22 are gradually started after the transverse steel bar 3 moves into place with the longitudinal steel bar 1, and finally work synchronously. Compared with the existing welding mechanism and bending mechanism that alternately move to the position of the transverse steel bar 3 for operation, the production efficiency of steel cage welding can be greatly improved.

[0042] Furthermore, in this embodiment, the method for welding and forming the reinforcing cage also includes the following steps:

[0043] S3, the longitudinal reinforcing bar 1 moves forward a distance L1, and the first welding station 21 moves backward a distance 2×L0-L1 and welds a transverse reinforcing bar 3 to the longitudinal reinforcing bar 1;

[0044] S4. The longitudinal steel bar 1 moves forward a distance L1, and the first bending and forming station 22 moves backward a distance 2×L0-L1 and bends the transverse steel bar 3 in place for the first time.

[0045] S5. The longitudinal reinforcement 1 moves forward by a distance L1, and the second welding station 21 moves backward by a distance 2×L0-L1 and welds the first bent part of the transverse reinforcement 3 to the longitudinal reinforcement 1.

[0046] S6. The longitudinal reinforcing bar 1 moves forward a distance of 2×L0. The longitudinal reinforcing bar cutting station 23 cuts the longitudinal reinforcing bar 1. The welding station 21 and bending and forming station 22, which have moved backward, move forward a distance of 2×L0-L1 to reset.

[0047] Once the number of transverse reinforcing bars 3 welded to the longitudinal reinforcing bar 1 reaches the required 9 bars for the first reinforcing bar cage 10, and before the cutting part 11 on the longitudinal reinforcing bar 1 reaches the longitudinal reinforcing bar cutting station 23, the first welding station 21, the first bending and forming station 22, and the second welding station 21 move backward by a set distance in sequence and complete the corresponding process. Finally, they are reset and return to the state of synchronous operation of the two bending and forming stations 22 and the welding station 21 in step S2. This ensures that the two reinforcing bar cages 10 are welded and formed quickly and continuously, further ensuring production efficiency.

[0048] Furthermore, in this embodiment, the longitudinal rebar cutting station 23 is a movable and lifting station. Before the cutting part 11 on the longitudinal rebar 1 reaches the longitudinal rebar cutting station 23, the longitudinal rebar cutting station 23 is lowered to a low position to avoid affecting the forward movement of the longitudinal rebar 1. After the cutting part 11 reaches the longitudinal rebar cutting station 23, the longitudinal rebar cutting station 23 rises to a high position to cut the longitudinal rebar 1, obtaining a rebar cage 10 of a set length. The operation is simple and effective. The longitudinal rebar cutting station 23 can also be moved longitudinally to adjust its position, thereby adapting to rebar cages 10 of different specifications, and has good versatility.

[0049] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the scope of the present invention, should fall within the protection scope of the present invention.

Claims

1. A method for welding and forming a reinforcing cage, characterized in that: Includes the following steps: S1. The longitudinal steel bar (1) moves forward until the distance between the front end and the first welding station (21) is L0. The first welding station (21) welds a transverse steel bar (3) to the longitudinal steel bar (1), where L0 is the distance between the end of the steel cage (10) and the adjacent stirrup (101). S2, the longitudinal steel bar (1) moves forward intermittently and each time it moves a set distance. The first welding station (21) welds a transverse steel bar (3) to the longitudinal steel bar (1). The first bending and forming station (22) bends the transverse steel bar (3) in place for the first time. The second welding station (21) welds the first bent part of the transverse steel bar (3) in place to the longitudinal steel bar (1)... The nth bending and forming station (22) bends the transverse steel bar (3) in place for the nth time to form a stirrup (101); until the first welding station (21) welds the mth transverse steel bar (3) to the longitudinal steel bar (1), where m is the number of stirrups (101) on the steel cage (10). S3, the longitudinal reinforcement (1) moves forward a set distance, the first welding station (21) moves backward a set distance and welds a transverse reinforcement (3) to the longitudinal reinforcement (1); S4, the longitudinal steel bar (1) moves forward a set distance, the first bending and forming station (22) moves backward a set distance and bends the transverse steel bar (3) in place for the first time; … S 2n+1 The longitudinal reinforcement (1) moves forward a set distance, and the nth welding station (21) moves backward a set distance and welds the part of the transverse reinforcement (3) that is bent for the n-1th time to the longitudinal reinforcement (1), where n≥2; S 2n+2 The longitudinal steel bar (1) moves forward by a distance of 2×L0. The longitudinal steel bar cutting station (23) cuts the longitudinal steel bar (1). The welding station (21) and bending and forming station (22) that have moved backward move forward by a set distance and reset.

2. The method for welding and forming a reinforcing cage according to claim 1, characterized in that: In step S2, the longitudinal reinforcement (1) moves by a distance L1 each time, where L1 is the distance between two adjacent stirrups (101) on the reinforcement cage (10); steps S3 to S 2n+1 In the process, the longitudinal reinforcement (1) moves forward by a distance of L1, and the welding station (21) and bending and forming station (22) move backward by a distance of 2×L0-L1.

3. The method for welding and forming a reinforcing cage according to claim 1, characterized in that: m≥4。 4. The method for welding and forming a reinforcing cage according to claim 1, characterized in that: The number of longitudinal reinforcing bars (1) in the steel cage (10) is greater than or equal to four.

5. The method for welding and forming a reinforcing cage according to claim 1, characterized in that: The cross section of the steel cage (10) is a rectangular structure.

6. The method for welding and forming a reinforcing cage according to claim 1, characterized in that: The two ends of the stirrup (101) overlap.

7. The method for welding and forming a reinforcing cage according to claim 1, characterized in that: n＝2。 8. The method for welding and forming a reinforcing cage according to claim 7, characterized in that: The first welding station (21) is the bottom welding station, the second welding station (21) is the side welding station, the first bending and forming station (22) is the side bending and forming station, and the second bending and forming station (22) is the top bending and forming station.

9. The method for welding and forming a reinforcing cage according to claim 1, characterized in that: The longitudinal steel bar cutting station (23) is a movable and lifting station.

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