A welding device for a steel bar meter

Abstract

The present invention relates to a welding device for a rebar meter, and belongs to the technical field of welding equipment. The present invention includes a connecting component, a positioning component and a centering structure. The connecting component includes a positioning fastener and a locking fastener arranged in sequence from front to back, and the positioning fastener and the locking fastener are plugged in front and back; the positioning component includes a first positioning member and a second positioning member spaced from front to back, and an adjusting member that can make the two members approach or move away from each other is connected between the first positioning member and the second positioning member, and the first positioning member is used to abut against the main reinforcement adjacent to the main reinforcement where the rebar meter is installed, and the second positioning member is used to abut against the positioning fastener; the centering structure includes two centering claws, two centering springs and a centering plate connected between the two centering springs, and a centering slot for the left and right ends of the rebar meter to fit in is provided at the middle position of the bottom of the centering plate. The present invention can accurately fix the rebar meter on the rebar cage, and effectively avoid the problem of welding deviation.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, and in particular to a welding equipment for a steel bar meter. Background Art

[0002] A rebar meter is a sensor used to measure the internal stress or strain of steel bars. It is mainly used for monitoring in civil engineering, bridges, tunnels, dams and other structural projects. The rebar meter can provide important data about the stress state of the steel bars, helping engineers evaluate the safety and stability of the structure.

[0003] The steel cage is an important component of reinforced concrete structure, mainly used to improve the bearing capacity and durability of concrete structure. The steel cage is a three-dimensional frame structure composed of main bars and stirrups, which are fixed together by tying or welding. During the construction process, in order to monitor and evaluate the stress state, deformation and health status of the reinforced concrete structure, a steel meter needs to be installed on the steel cage.

[0004] The method of installing a rebar meter on a rebar cage is usually to use special glue to stick the rebar meter on the main bar of the rebar cage, or to use a binding belt or other fixed structure to firmly bind the rebar meter on the main bar, such as a rebar meter that is easy to tie disclosed in the patent with the authorization announcement number CN212836276U. The rebar meter is connected to the rebar through a fixing clamp. Although the installation method is simple, the connection is not strong enough, and the rebar meter is easy to fall off from the gap of the fixing clamp. In special cases, such as when long-term monitoring of reinforced concrete structures is required, or when the structure to be monitored is in a high temperature and easily corrosive environment, in order to ensure that the rebar meter and the rebar cage have a high connection strength, the rebar meter will be welded to the rebar cage. During welding, a mounting gap for avoiding the rebar meter is cut on the main bar of the rebar cage, and a connecting rod is connected to each end of the rebar meter. The rebar meter is placed at the mounting gap on the main bar, and then the two connecting rods are welded to the main bars with cut ends on both sides of the mounting gap.

[0005] In the prior art, when welding steel bars, a hand-held steel bar counter is often placed at a set position before welding begins. The accuracy of the welding position cannot be guaranteed. If deviations occur during the welding process, the steel bar counter will be welded off-center, which will ultimately lead to distortion of the test data and affect the assessment of the health status of the reinforced concrete structure. Summary of the invention

[0006] The invention provides a welding device for a steel bar meter, so as to solve the technical problem in the prior art that welding by manually placing a welding meter causes inaccurate welding positions, thereby affecting the detection results.

[0007] In order to solve the above problems, the present invention provides a welding device for a steel bar meter adopting the following technical solution:

[0008] A welding device for a steel bar meter, comprising:

[0009] A connecting assembly, at least two groups of which are arranged at intervals on the left and right sides, and are used to be arranged on both sides of the installation gap. The connecting assembly includes positioning fasteners and locking fasteners arranged in sequence from front to back. The positioning fastener is provided with a connecting rod groove for the connecting rod at the end of the steel bar to be inserted, and a bottom horizontal positioning surface sequentially connected to the bottom of the connecting rod groove for supporting the connecting rod and the main reinforcement. The top of the positioning fastener is also provided with a top horizontal positioning plate with a bottom surface parallel to the bottom horizontal positioning surface. The locking fastener is provided with a main reinforcement groove for the main reinforcement to be inserted. The connecting rod groove and the main reinforcement groove opening are opposite to each other front and back. The positioning fastener and the locking fastener are plugged in front and back to connect the connecting rod to the main reinforcement.

[0010] A positioning assembly, comprising a first positioning member and a second positioning member which are spaced from front to back and are used to be arranged above the stirrups, an adjusting member which can make the first positioning member and the second positioning member move closer to or farther from each other is connected between the first positioning member and the second positioning member, the first positioning member is used to abut against a main reinforcement adjacent to the main reinforcement on which the reinforcement meter is installed, the second positioning member is used to abut against a positioning fastener, and the second positioning member has a main positioning surface for the top horizontal positioning plate to be erected;

[0011] The centering structure includes two centering claws which are arranged symmetrically and are used to buckle on the cut ends of the main reinforcement on the left and right sides of the installation notch, two centering springs which are respectively connected to the sides close to each other of the two centering claws, and a centering plate connected between the two centering springs. The centering plate is used to be arranged above the stirrups, and a centering slot is provided at the middle position of the bottom of the centering plate for the left and right ends of the steel bar meter to fit in.

[0012] By adopting the above technical scheme, before welding the rebar meter, first insert the connecting rod at the end of the rebar meter into the connecting rod groove in the positioning fastener, and then insert the main reinforcement beside the installation notch into the main reinforcement groove in the locking fastener, and then make the positioning fastener and the locking fastener plug-in connected, connect the connecting rod to the main reinforcement at both ends of the installation notch, and realize the pre-connection between the rebar meter and the main reinforcement, and then place the positioning assembly above the stirrups, so that the horizontal positioning plate in the positioning fastener is placed on the main positioning surface on the second positioning member, so that the bottom surface of the horizontal positioning plate is in contact with the main positioning surface, and since the bottom horizontal positioning surface is parallel to the bottom surface of the horizontal positioning plate, the bottom horizontal positioning surface is also parallel to the main positioning surface, and the bottom horizontal positioning surface is supported on the bottom of the connecting rod and the main reinforcement, so that the connecting rod and the main reinforcement can be kept horizontal, thereby keeping the rebar meter and the main reinforcement parallel.

[0013] Then, the centering claws are fastened to the cut ends of the main reinforcement on the left and right sides of the installation notch. Two centering springs of equal length are symmetrically connected on the left and right sides of the centering plate. The two springs have the same degree of expansion and contraction in the natural state and the same length. In this way, the centering plate can be located in the middle position between the two centering claws, which is also in the middle position of the installation notch. Then, the rebar meter is moved left and right so that the left and right ends of the rebar meter are both inserted into the centering slots. In this way, the rebar meter can be aligned with the installation notch.

[0014] Afterwards, the first positioning member and the second positioning member are moved away from each other through the adjusting member, and the first positioning member and the second positioning member are clamped between the main reinforcement for installing the rebar meter and the main reinforcement adjacent to the main reinforcement, and the connecting rod is pressed onto the main reinforcement for installing the rebar meter through the positioning fastener, thereby completing the fixed installation of the rebar meter. After the rebar meter is fixed, it can remain parallel to the main reinforcement and be located in the middle position of the installation notch. Welding is performed at this time to ensure that the welding position of the rebar meter is accurate and reliable, and problems such as welding deviation will not occur.

[0015] Furthermore, the positioning fastener is provided with a horizontal plug plate located at the bottom of the connecting rod groove, and the top surface of the horizontal plug plate forms the bottom horizontal positioning surface. The locking fastener is provided with a through hole running through the front and back, and the horizontal plug plate is inserted in the through hole. The bottom of the horizontal plug plate is provided with a plurality of limit teeth arranged at intervals in the front and back. A pull rod capable of moving in the up and down directions is passed through the bottom of the through hole on the locking fastener, and a movable tooth is connected to the top of the pull rod. An elastic member is connected between the movable tooth and the locking fastener, and the elastic member is used to apply an upward elastic force to the movable tooth so that the movable tooth is inserted into the gap between two adjacent limit teeth.

[0016] By adopting the above technical scheme, the horizontal plug plate is inserted into the through hole to realize the plug-in fit between the positioning fastener and the locking fastener, and movable teeth and limit teeth are provided so that the movable teeth are inserted into the gap between two adjacent limit teeth, so that the positioning fastener and the locking fastener can be firmly plugged in and fit, and the movable teeth can be disengaged from the gap between the limit teeth by pulling the pull rod, thereby adjusting the position where the movable teeth are inserted, so that the spacing between the positioning fastener and the locking fastener can be adjusted, and the connecting rod does not need to be locked on the main reinforcement at one time, which facilitates the adjustment of the position of the connecting rod.

[0017] Furthermore, a positioning bolt extending in the front-to-back direction is threadedly mounted on the first positioning member, and the end of the positioning bolt is rotatably connected to the second positioning member, so that the first positioning member and the second positioning member can be moved closer to or farther away from each other when the positioning bolt is screwed.

[0018] By adopting the above technical solution, one of the positioning members is manually fixed, and then the positioning bolt is screwed, so that the distance between the first positioning member and the second positioning member can be adjusted, and the adjustment method is simple.

[0019] Furthermore, at least two pressing plates are arranged at intervals on the left and right sides at the bottom of the first positioning member, and the pressing plates are used to abut against another main reinforcement adjacent to the main reinforcement on which the reinforcement meter is installed.

[0020] By adopting the above technical solution, at least two pressing plates are arranged to abut against the main rib, so that the first positioning member can better maintain parallelism with the main rib.

[0021] Furthermore, the second positioning member is provided with an installation slot with an opening direction facing away from the first positioning member, and a fixed shaft extending in the left and right directions is provided in the installation slot. The centering plate is rotatably mounted on the fixed shaft, and the centering plate can slide left and right on the fixed shaft. The centering claw includes a centering cover plate, a movable sleeve and an elastic telescopic rod. The centering cover plate is used to be buckled on the cutting ends of the main reinforcements on the left and right sides of the cutting notch. The movable sleeve is slidably mounted on the fixed shaft, and the movable sleeve can rotate around the fixed shaft. The elastic telescopic rod is perpendicular to the fixed shaft and connected between the movable sleeve and the centering cover plate. The centering spring is connected between the movable sleeve and the centering plate.

[0022] By adopting the above technical solution, the centering plate and the centering claw are both assembled on the fixed shaft on the second positioning member, so that the centering plate and the second positioning member are connected as one, which can improve the integrity of the welding equipment and make it more convenient to use and assemble.

[0023] Furthermore, a positioning tension spring is connected between the movable sleeve and the end groove wall of the installation groove to which it is close.

[0024] By adopting the above technical solution and setting a positioning tension spring, an elastic force can be applied to the centering claw toward the cut end of the main rib, so that the centering cover plate can be pressed against the cut end of the main rib to prevent the centering cover plate from falling off.

[0025] Furthermore, the centering plate is provided with a cooling water channel which passes through from top to bottom, and a cooling water tank is also provided on the centering plate. The cooling water tank has a water outlet pipe, a valve is provided at the water outlet pipe, and the water outlet pipe is movably inserted in the cooling water channel.

[0026] By adopting the above technical solution, cooling water can be released to cool the steel bar meter during welding, so as to avoid damage to the steel bar meter caused by the high temperature generated by welding.

[0027] Furthermore, a horizontal limiting plate is provided on the side of the bottom of the positioning plate facing the second positioning member, and when the positioning plate is flipped on the fixed axis to a horizontal position, the horizontal limiting plate is abutted against the bottom surface of the second positioning member.

[0028] By adopting the above technical solution, the centering plate can be kept in a horizontal position.

[0029] The beneficial effect of the welding equipment for a rebar meter provided by the present invention is that before welding the rebar meter, the rebar meter can be adjusted to a state where it is parallel to the main reinforcement and centered on the installation notch in the main reinforcement, and the rebar meter is fixed in this state for welding, so that the welding position is more accurate and the problem of welding deviation of the rebar meter can be effectively avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0031] Figure 1 This is a schematic diagram of the structure when the steel bar meter is welded and fixed on the steel cage;

[0032] Figure 2 A schematic diagram of a welding device for a steel bar meter provided by the present invention Figure 1 ;

[0033] Figure 3 for Figure 2 A schematic diagram of the structure enlargement at the center A;

[0034] Figure 4 A schematic diagram of a welding device for a steel bar meter provided by the present invention Figure 2 ;

[0035] Figure 5 A schematic structural diagram of a connection assembly in a welding device for a steel bar meter provided by the present invention;

[0036] Figure 6 A schematic diagram of the structure of a welding device for a steel bar meter provided by the present invention when installed on a steel bar cage Figure 1 ;

[0037] Figure 7 A schematic diagram of the structure of a welding device for a steel bar meter provided by the present invention when installed on a steel bar cage Figure 2 ;

[0038] Figure 8 A schematic diagram of the structure of a welding device for a steel bar meter provided by the present invention when installed on a steel bar cage Figure 3 ;

[0039] Fig. 9 The present invention is a bottom view of a welding device for a rebar meter provided by the present invention.

[0040] Description of reference numerals:

[0041] 1. Main reinforcement; 2. Stirrups; 3. First positioning piece; 4. Second positioning piece; 401. Main positioning surface; 5. Positioning fastener; 501. Top horizontal positioning plate; 502. Vertical positioning plate; 503. Limiting block; 504. Horizontal plug plate; 505. Connecting rod groove; 506. Bottom horizontal positioning surface; 507. Limiting tooth; 6. Locking fastener; 601. Top horizontal connecting plate; 602. Vertical connecting plate; 603. Bottom horizontal connecting plate; 604. Main reinforcement groove; 7. Cooling water tank ;8. Centering plate;9. Centering cover plate;10. Steel bar meter;11. Connecting rod;12. Cooling water channel;13. Water outlet pipe;14. Valve;15. Positioning bolt;16. Fixed shaft;17. Positioning tension spring;18. Movable sleeve;19. Elastic telescopic rod;20. Centering spring;21. Movable latch;22. Pull rod;23. Pull ring;24. Elastic part;25. Fixed block;26. Mounting block;261. Sliding through hole;27. Pressure plate;28. Baffle;29. Limit plate. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0043] The following is one embodiment of a welding device for a steel bar meter provided by the present invention:

[0044] like Figure 2 and Figure 6-Figure 8 As shown, a welding device for a rebar meter 10 includes a connecting component, a positioning component, a centering structure, a positioning tension spring 17 and a cooling water tank 7.

[0045] like Figure 2 As shown, there are two groups of connection components, which are respectively arranged on the main reinforcement 1 on the left and right sides of the installation gap on the steel cage, and are used to connect the connecting rods 11 on both sides of the steel bar meter 10 to the main reinforcement 1 on the corresponding side.

[0046] like Figure 5 As shown, the connection assembly includes a positioning fastener 5 and a locking fastener 6.

[0047] like Figure 5As shown, the positioning fastener 5 includes a vertical positioning plate 502, a top horizontal positioning plate 501 and a horizontal plug plate 504. The top horizontal positioning plate 501 and the horizontal plug plate 504 are respectively vertically connected to the upper and lower ends of the vertical positioning plate 502, and the top horizontal positioning plate 501 and the horizontal plug plate 504 are respectively arranged at the front and rear sides of the vertical positioning plate 502. The horizontal plug plate 504 is longer than the top horizontal positioning plate 501, and a mounting groove extending in the front-to-back direction is provided on the bottom surface of the horizontal plug plate 504, and a plurality of limit teeth 507 arranged at equal intervals in the front-to-back direction are provided in the mounting groove. A limit block 503 is provided on the side of the vertical positioning plate 502 facing the horizontal insert plate 504, and an arc-shaped connecting rod groove 505 for clamping the connecting rod 11 at the end of the steel bar meter 10 is formed between the limit block 503, the vertical positioning plate 502 and the horizontal insert plate 504. The top surface of the horizontal insert plate 504 is the bottom horizontal positioning surface 506, and the bottom horizontal positioning surface 506 is sequentially connected to the bottom of the connecting rod groove 505.

[0048] like Figure 5 As shown, the locking fastener 6 includes a vertical connecting plate 602, a top horizontal connecting plate 601 and a bottom horizontal connecting plate 603, and the top horizontal connecting plate 601 and the bottom horizontal connecting plate 603 are respectively vertically connected to the upper and lower ends of the vertical connecting plate 602, and the top horizontal connecting plate 601 and the bottom horizontal connecting plate 603 are located on the same side of the vertical connecting plate 602. A main rib groove 604 in a circular arc shape is formed between the top horizontal connecting plate 601, the vertical connecting plate 602 and the bottom horizontal connecting plate 603 for clamping on the main rib 1. The bottom horizontal connecting plate 603 is provided with a through hole that passes through the front and back, and the above-mentioned horizontal plug plate 504 is inserted in the through hole. A mounting block 26 is connected to the bottom surface of the bottom horizontal connecting plate 603, as shown in FIG. Figure 4 As shown, a sliding through hole 261 extending in the up-down direction is provided in the mounting block 26 , and the sliding through hole 261 is communicated with the above-mentioned through hole.

[0049] like Figure 4 As shown, a fixed block 25 is fixed at the bottom of the sliding through hole 261, and a pull rod 22 is slidably penetrated in the fixing block 25 in the up-down direction. The bottom end of the pull rod 22 extends to the bottom of the mounting block 26 and is connected to a pull ring 23. A movable latch 21 is connected to the top of the pull rod 22. The movable latch 21 is guided and slidably penetrated in the sliding through hole 261 in the up-down direction. An elastic member 24 is connected between the movable latch 21 and the fixed block 25. The elastic member 24 is a compression spring, and the elastic member 24 is sleeved on the outside of the pull rod 22. When the compression spring is not subjected to external force, the movable latch 21 can extend into the above-mentioned through hole and be inserted into the gap between two adjacent limit latches 507 on the horizontal plug plate 504 in the through hole. When the pull rod 22 is pulled downward by the pull ring 23, the movable latch 21 can be driven to move downward and disengage from the gap between two adjacent limit latches 507.

[0050] The positioning assembly comprises a first positioning member 3, a second positioning member 4 and an adjusting member. The first positioning member 3 and the second positioning member 4 are arranged above the stirrups 2 in the steel cage at intervals from front to back.

[0051] The first positioning member 3 has an L-shaped cross section, including a first horizontal plate segment and a first vertical plate segment vertically connected. Figure 8 As shown, two pressing plates 27 spaced apart from each other are connected to the bottom of the first horizontal plate section, and the pressing plates 27 are used to press on another main reinforcement 1 adjacent to the main reinforcement 1 for installing the reinforcement meter 10.

[0052] The cross section of the second positioning member 4 is L-shaped, including a second horizontal plate section and a second vertical plate section connected vertically, the second vertical plate section and the first vertical plate section are close to each other, and the second horizontal plate section and the first horizontal plate section are away from each other. The top surface of the second horizontal plate section is the main positioning surface 401 in the second positioning member 4, and the top horizontal positioning plate 501 in the positioning fastener 5 is mounted on the second horizontal plate section so that the bottom surface of the top horizontal positioning plate 501 is attached to the main positioning surface 401. The middle part of the second horizontal plate section is provided with an installation slot with an opening facing away from the first positioning member 3, and a fixed shaft 16 extending in the left-right direction is installed in the installation slot.

[0053] like Figure 2 As shown, the adjusting member is a positioning bolt 15, which extends in the front-to-back direction and is threadedly mounted on the first vertical plate segment, and the end of the positioning bolt 15 passes through the first vertical plate segment and is rotatably connected to the second vertical plate segment. By manually fixing the first positioning member 3 or the second positioning member 4 and screwing the positioning bolt 15, the first positioning member 3 and the second positioning member 4 can be controlled to move closer to or farther from each other.

[0054] like Figure 2 As shown, the centering structure includes a centering plate 8 , a centering claw and a centering spring 20 .

[0055] The centering plate 8 is rotatably mounted on the fixed shaft 16, and the centering plate 8 can slide left and right on the fixed shaft 16, such as Figure 7 , Figure 8 As shown, two baffles 28 are arranged symmetrically at the middle position of the bottom surface of the centering plate 8. The spacing between the two baffles 28 is equal to the length of the rebar meter 10. The area between the two baffles 28 forms a centering slot for the rebar meter 10 to fit in. The two baffles 28 are respectively used to be clamped at the left and right ends of the rebar meter 10. Fig. 9 As shown, the bottom of the centering plate 8 is connected to a limiting plate 29 near the second positioning member 4. The limiting plate 29 is used to abut against the bottom surface of the second horizontal plate section when the centering plate 8 is flipped to a horizontal state, so that the centering plate 8 is kept in a more horizontal position with the bottom surface of the second horizontal plate section as the positioning surface. Figure 2As shown, the centering plate 8 is further provided with two cooling water channels 12 which are arranged symmetrically left and right and penetrate vertically.

[0056] like Figure 2 , Figure 3 As shown, there are two groups of centering claws, which are arranged symmetrically on the left and right. The centering claws include a centering cover plate 9, a movable sleeve 18 and an elastic telescopic rod 19.

[0057] like Figure 3 As shown, the centering cover plate 9 is provided with a limit slot for inserting the cut end of the main rib 1, the bottom surface of the limit slot fits the cut end surface of the main rib 1, and the centering cover plate 9 is used to buckle on the cut end of the main rib 1 on the left and right sides of the installation gap. The movable sleeve 18 is slidably sleeved on the fixed shaft 16, and the movable sleeve 18 can rotate around the fixed shaft 16, and the elastic telescopic rod 19 is perpendicular to the fixed shaft 16 and connected between the movable sleeve 18 and the centering cover plate 9.

[0058] like Figure 2 , Figure 3 As shown, two centering springs 20 are provided, and the two centering springs 20 are respectively connected to the ends of the two movable sleeves 18 that are close to each other, and the centering springs 20 are sleeved on the fixed shaft 16, and the centering plate 8 is connected between the two centering springs 20.

[0059] Two positioning tension springs 17 are provided, and both positioning tension springs 17 are sleeved on the fixed shaft 16 , and the positioning tension springs 17 are connected between the movable sleeve 18 and the end groove wall of the installation groove that the movable sleeve 18 is close to.

[0060] like Figure 6 , Figure 7 As shown, the cooling water tank 7 is installed on the top of the centering plate 8, and two water outlet pipes 13 are provided at the bottom of the cooling water tank 7. A valve 14 is provided at the water outlet pipe 13. The water outlet pipe 13 is used to be inserted into the cooling water channel 12 when the centering plate 8 is swung to a horizontal position.

[0061] When the present invention is used, the connecting rods 11 at both ends of the steel bar meter 10 are first connected to the main reinforcement 1 through the connecting assembly. When connecting, the connecting rod 11 is inserted into the connecting rod groove 505, and the main reinforcement 1 is inserted into the main reinforcement groove 604. Then, the horizontal plug plate 504 is inserted into the through hole, and the movable clamping teeth 21 are clamped into the interval between the limiting clamping teeth 507 to achieve the pre-connection between the steel bar meter 10 and the main reinforcement 1. Then, the first positioning member 3 and the second positioning member 4 are placed on the stirrup 2, so that the pressure plate 27 is against another main reinforcement 1 adjacent to the main reinforcement 1 for installing the steel bar meter 10, and the top horizontal positioning plate 501 is placed on the second positioning member 4, and the bottom surface of the top horizontal positioning plate 501 is matched with the main positioning surface 401 in the second positioning member 4.

[0062] Then, the positioning bolts 15 are screwed to move the first positioning member 3 and the second positioning member 4 away from each other, so that the first positioning member 3 and the second positioning member 4 are pre-tensioned between the two main bars 1. Then, the two centering covers 9 are buckled on the two cut ends of the main bars 1, respectively. At this time, the centering plate 8 is in the middle of the installation gap. Then, the rebar meter 10 is inserted between the two baffles 28 at the bottom of the centering plate 8 to achieve the positioning of the rebar meter 10 in the axial direction. Then, the positioning bolts 15 are screwed again to make the first positioning member 3 and the second positioning member 4 completely tensioned between the two adjacent main bars 1, and the rebar meter 10 is pressed and fixed on the main bars 1. Then, the cooling water tank 7 is installed on the centering plate 8, and cooling water is injected into the cooling water tank 7. At this time, the connecting rod 11 can be welded to the main bars 1. During welding, the valve 14 is opened to allow the cooling water to flow to the rebar meter 10 to cool the rebar meter 10, so as to avoid damage to the sensor inside the rebar meter 10 caused by the high temperature during welding. A piece of cotton cloth can be placed between the rebar meter 10 and the centering plate 8 so that the cooling water can soak through the cotton cloth and then soak into the rebar meter 10, thereby preventing a large amount of cooling water from directly flowing onto the rebar meter 10 and affecting the performance of the rebar meter 10.

[0063] After welding is completed, the welding device for the steel bar meter can be removed from the steel bar cage. At this time, the connection state between the steel bar meter 10 and the steel bar cage is as follows: Figure 1 shown.

[0064] The present invention can accurately fix the steel bar meter 10 on the steel cage before welding, ensure accurate welding of the horizontal and axial positions of the steel bar meter 10, and effectively avoid the steel bar meter 10 from being welded off-center and affecting the detection results.

[0065] In this embodiment, the adjusting member is a positioning bolt 15, which is threadedly installed on the first vertical plate segment, and the end of the positioning bolt 15 is rotatably connected to the second vertical plate segment. The distance between the first positioning member 3 and the second positioning member 4 can be adjusted by screwing the positioning bolt 15. In other embodiments, the adjusting member includes two coaxial movable shafts that are threadedly connected, and the ends of the two movable shafts that are away from each other are rotatably connected to the first vertical plate segment and the second vertical plate segment respectively. The relative distance between the first positioning member 3 and the second positioning member 4 is adjusted by rotating the two movable shafts in opposite directions.

Claims

1. A welding device for a steel bar meter, characterized in that: include: A connecting assembly, at least two groups of which are arranged at intervals on the left and right sides, and are used to be arranged on both sides of the installation gap. The connecting assembly includes positioning fasteners and locking fasteners arranged in sequence from front to back. The positioning fastener is provided with a connecting rod groove for the connecting rod at the end of the steel bar to be inserted, and a bottom horizontal positioning surface sequentially connected to the bottom of the connecting rod groove for supporting the connecting rod and the main reinforcement. The top of the positioning fastener is also provided with a top horizontal positioning plate with a bottom surface parallel to the bottom horizontal positioning surface. The locking fastener is provided with a main reinforcement groove for the main reinforcement to be inserted. The connecting rod groove and the main reinforcement groove opening are opposite to each other front and back. The positioning fastener and the locking fastener are plugged in front and back to connect the connecting rod to the main reinforcement. A positioning assembly, comprising a first positioning member and a second positioning member which are spaced from front to back and are used to be arranged above the stirrups, an adjusting member which can make the first positioning member and the second positioning member move closer to or farther from each other is connected between the first positioning member and the second positioning member, the first positioning member is used to abut against a main reinforcement adjacent to the main reinforcement on which the reinforcement meter is installed, the second positioning member is used to abut against a positioning fastener, and the second positioning member has a main positioning surface for the top horizontal positioning plate to be erected; The centering structure includes two centering claws which are arranged symmetrically and are respectively used to buckle on the cut ends of the main reinforcement on the left and right sides of the installation notch, two centering springs which are respectively connected to the sides of the two centering claws which are close to each other, and a centering plate which is connected between the two centering springs. The centering plate is used to be arranged above the stirrups, and a centering slot for the left and right ends of the steel bar meter to be adapted and snapped into is provided at the middle position of the bottom of the centering plate; The second positioning member is provided with an installation slot with an opening direction facing away from the first positioning member, and a fixed shaft extending in the left and right directions is provided in the installation slot. The centering plate is rotatably mounted on the fixed shaft, and the centering plate can slide left and right on the fixed shaft. The centering claw includes a centering cover plate, a movable sleeve and an elastic telescopic rod. The centering cover plate is used to be buckled on the cutting ends of the main reinforcements on the left and right sides of the cutting notch. The movable sleeve is slidably mounted on the fixed shaft, and the movable sleeve can rotate around the fixed shaft. The elastic telescopic rod is perpendicular to the fixed shaft and connected between the movable sleeve and the centering cover plate. The centering spring is connected between the movable sleeve and the centering plate.

2. A welding device for a steel bar meter according to claim 1, characterized in that: The positioning fastener is provided with a horizontal plug plate located at the bottom of the connecting rod groove, and the top surface of the horizontal plug plate forms the bottom horizontal positioning surface. The locking fastener is provided with a through hole that passes through the front and back, and the horizontal plug plate is inserted in the through hole. The bottom of the horizontal plug plate is provided with a plurality of limit teeth arranged at intervals in the front and back. The locking fastener is provided with a pull rod that can move in the up and down directions at the bottom of the through hole, and a movable tooth is connected to the top of the pull rod. An elastic member is connected between the movable tooth and the locking fastener, and the elastic member is used to apply an upward elastic force to the movable tooth so that the movable tooth is inserted into the gap between two adjacent limit teeth.

3. A welding device for a steel bar meter according to claim 1, characterized in that: A positioning bolt extending in the front-to-back direction is threadedly mounted on the first positioning member, and the end of the positioning bolt is rotatably connected to the second positioning member so that the first positioning member and the second positioning member can be moved closer to or farther from each other when the positioning bolt is screwed.

4. A welding device for a steel bar meter according to claim 1, characterized in that: At least two pressing plates are arranged at intervals on the left and right sides at the bottom of the first positioning member, and the pressing plates are used to abut against another main reinforcement adjacent to the main reinforcement where the reinforcement meter is installed.

5. A welding device for a rebar gauge according to any one of claims 1 to 4, characterized in that: A positioning tension spring is connected between the movable sleeve and the end groove wall of the installation groove adjacent to the movable sleeve.

6. A welding device for a rebar gauge according to any one of claims 1 to 4, characterized in that: The centering plate is provided with a cooling water channel which passes through from top to bottom. The centering plate is also provided with a cooling water tank. The cooling water tank has a water outlet pipe. A valve is provided at the water outlet pipe. The water outlet pipe is movably inserted in the cooling water channel.

7. A welding device for a rebar gauge according to any one of claims 1 to 4, characterized in that: A limiting plate is provided on one side of the bottom of the centering plate facing the second positioning member. When the centering plate is flipped on the fixed axis to a horizontal position, the limiting plate is pressed against the bottom surface of the second positioning member.

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