Detachable tool for butt-joint positioning of reinforcing steel bars and use method of detachable tool

Abstract

The invention discloses a detachable tool for butt-joint positioning of reinforcing steel bars and a using method of the detachable tool. Comprising a shaft body guide rail, a positioning shaft and a limiting ring sleeve, the positioning shaft consists of a positioning shaft body, a side wing and a shaft end bolt; the limiting ring sleeve is composed of a C-shaped sleeve body, a sleeve hole, a limiting hook and a fastening pin. A pair of side wings capable of being clamped in the guide rail grooves are symmetrically arranged on the portion, close to the shaft end bolt, of the positioning shaft, when the shaft end bolt is not in a screwed state, the positioning shaft can freely slide in the guide rail grooves in the length direction, the positioning shaft can freely control the distance between positioning shaft bodies so as to meet the requirements of different conditions, and one group of guide rail grooves are provided with guide rail supporting legs. The guide rail grooves in the lower group comprise guide rail supporting legs, and according to the guide rail supporting legs of the guide rail grooves in the lower group, column edges can be firmly clamped when the split bolts are matched with the sleeves for pulling.

Description

Technical Field

[0001] The present invention relates to the field of steel bar butt joint positioning, and in particular to a detachable tooling for steel bar butt joint positioning and its usage method. Background Art

[0002] With the rapid development of building industrialization and intelligent construction technology, new construction technologies represented by the overall hoisting process of steel reinforcement cages and column forms and the prefabricated construction process including precast wall columns are gradually popularized. These technologies significantly improve the construction efficiency through modular prefabrication and integrated hoisting, shortening the on-site operation cycle by 20% to 30%. Steel bars are steel products widely used in construction projects, usually made of carbon steel or low-alloy steel, with high strength, good ductility and weldability. It is an indispensable part of concrete structures, mainly used to enhance the tensile strength of concrete, thereby improving the bearing capacity and seismic performance of the entire structure. Classified by production process: hot-rolled steel bars, cold-worked steel bars, heat-treated steel bars and steel bars for prestressed concrete. Steel bars need to be butt-jointed and positioned, which is a key link to ensure structural safety and construction quality. Steel bars form a continuous stress system through butt joints, and their positioning accuracy directly affects the structural bearing capacity. If the deviation of the butt joint position exceeds the allowable value specified in the code, problems such as stress concentration, insufficient crack resistance and reduced durability will occur.

[0003] However, there are still technical bottlenecks in the precise butt joint of steel bars at the core node parts of steel bar butt joint positioning. Especially for processes such as sleeve grouting and mechanical anchoring of the main bar connections between precast components, the positioning accuracy requirements for steel bars reach the level of plus or minus two millimeters. Problems such as steel bar positioning deviation or difficult butt joint caused by the steel bar ends not being in a fixed state during construction have become key technical problems affecting the construction progress and quality of prefabricated buildings. Therefore, a detachable tooling for steel bar butt joint positioning and its usage method are proposed. Summary of the Invention

[0004] The present invention provides the following technical solutions: A detachable tooling for steel bar butt joint positioning, comprising: A main structure, and a shaft guide rail, a positioning shaft and a limit collar that make up the main structure. The shaft guide rail is composed of two groups of guide grooves, and a ring buckle is sleeved on the surface of the guide grooves, and guide rail legs are installed on the lower surface of the guide grooves. A tension bolt is additionally provided between two adjacent groups of guide grooves, and a sleeve is connected to the surface of the tension bolt; A positioning shaft, composed of a positioning shaft body, side wings and shaft end bolts. A positioning shaft nut and a gasket are connected to the surface of the shaft end bolts, and a dimensional scale is provided on the upper surface of the positioning shaft body; The limit ring sleeve is composed of a C-shaped sleeve body, a sleeve hole, a limit hook and a fastening pin. A scale viewing window is provided on the upper surface of the C-shaped sleeve body, and a U-shaped buckle is connected to the inner cavity of the sleeve hole. A butt joint steel bar is additionally arranged on the outer side of the limit ring sleeve.

[0005] For this positioning tooling, a pair of wings that can be stuck in the guide rail groove are symmetrically arranged on the part of the positioning shaft close to the shaft end bolt. When the positioning shaft nut on the shaft end bolt is not in a tightened state, the positioning shaft can freely slide along the length direction in the guide rail groove. According to different situations, the distance of the butt joint steel bar is arranged, and the positioning shaft can freely control the distance between the positioning shaft bodies to meet the needs of different situations; one group of guide rail grooves is provided with guide rail legs and is fixedly connected, so that the guide rail grooves can be divided into upper and lower groups. The lower group of guide rail grooves includes the guide rail legs. According to the guide rail legs it has, when the tension bolt cooperates with the sleeve for tying, it can be firmly clamped against the column edge to prevent the guide rail groove from slipping; the limit ring sleeve can freely slide on the positioning shaft. When the limit ring sleeve moves to the required position on the positioning shaft, the fastening pin is pulled and tightened, and it can be fixedly connected through the friction force between the C-shaped sleeve body and the positioning shaft body. According to the scale on the positioning shaft body and the scale viewing window on the limit ring sleeve, the position of the limit ring sleeve can be visually controlled when it slides on the positioning shaft, reducing the measurement operation required for positioning the butt joint steel bar.

[0006] Preferably, the cross-section of the inner cavity of the guide rail groove is designed in a concave shape, and the two groups of guide rail grooves are arranged in a layout with one high and one low on the same horizontal plane, so that the corresponding structure can move between the two groups of guide rail grooves.

[0007] Preferably, the ring buckle is sleeved and connected to the left and right ends of the outer surfaces of the two groups of guide rail grooves, so that the two groups of guide rail grooves can be detachably fixed through the ring buckle.

[0008] Preferably, there are two groups of the wings, and the wings are arranged on the upper surface and the lower surface of the positioning shaft body, and the shaft end bolt is arranged at the end of the positioning shaft body. The wings move in the same direction as the positioning shaft body, while the shaft end bolt plays a role in fixing and positioning the positioning shaft body.

[0009] Preferably, the positional relationship between the scale viewing window and the dimensional scale on the positioning shaft body corresponds, so that the dimensional scale on the positioning shaft body can be conveniently observed through the scale viewing window.

[0010] Preferably, the U-shaped buckle passes through the corresponding sleeve hole, and the sleeve hole is opened on the surface of the C-shaped sleeve body. The U-shaped buckle passes through the sleeve holes of the C-shaped sleeve bodies on the same column edge, so as to uniformly control the protective layer thickness of the butt joint steel bar to the column edge.

[0011] Preferably, a U-shaped buckle nut is threadedly connected to the surface of the U-shaped buckle, which plays a role in fixing and positioning the U-shaped buckle.

[0012] Preferably, the outer surface of the tension bolt is provided with an external thread, and the inner wall of the sleeve is provided with an internal thread, and the tension bolt is threadedly connected with the sleeve. The sleeve is put on the tension bolt, ensuring that the threaded portion of the sleeve is completely aligned with the threaded portion of the tension bolt, and the sleeve is rotated to move forward along the thread direction of the tension bolt, so that the shaft guide rail passes through the tension bolt and the sleeve to tie the opposite sides.

[0013] The present invention provides a method for using a detachable steel bar butt-jointing and positioning tool, based on the above-mentioned detachable steel bar butt-jointing and positioning tool, comprising the following steps: S1. Installation and distance adjustment: According to the number of steel bars to be positioned on each side, place an equal number of positioning shafts in the upper and lower guide grooves, fix the upper and lower guide grooves with buckles, and adjust the position of the positioning shaft by sliding it left and right in the guide groove according to the distance between the steel bars. After the positioning shaft is in place, tighten the positioning shaft nut; S2. Position adjustment and fixation: Adjust the position of the corresponding C-shaped sleeve on the positioning shaft at the corresponding end according to the thickness of the protective layer, pull the fastening pin and tighten the corresponding nut, then pass the U-shaped buckle through the sleeve hole on the positioned C-shaped sleeve, and then pass through the sleeve hole of the C-shaped sleeve on the other positioning shaft in turn and fix it with the U-shaped buckle nut, pull the fastening pin and tighten the corresponding nut; S3, through the positioning hole: Pass the butt-jointed steel bars on each side through the positioning holes formed by the limit hooks and U-shaped buckles on the C-shaped sleeve that have been adjusted; S4, side tooling connection: Use tension bolts and sleeves to connect the tooling on opposite sides as a whole; S5. Docking completed: Complete the butt joint work of butt steel bars; S6. Disassembly tooling: Remove the U-shaped buckle, tension bolt and sleeve in sequence, and dismantle the single-side docking positioning tooling; S7, repeat the operation: Repeat operations S1 to S6 until all butted steel bars are butt-jointed.

[0014] Preferably, in step S2, it further includes a position pre-marking step for the C-shaped sleeve body, that is, before adjusting the position of the C-shaped sleeve body on the positioning shaft body, pre-marking is first made on the C-shaped sleeve body or the guide rail groove according to the thickness of the protective layer and the dimensional scale on the positioning shaft body. By adding the position pre-marking step for the C-shaped sleeve body, a more intuitive and accurate reference can be provided when adjusting the position of the C-shaped sleeve body, thereby improving the convenience and efficiency of using the tooling. The pre-marking can help the operator quickly determine the correct position of the C-shaped sleeve body on the positioning shaft body, reducing the time and labor waste caused by repeated adjustments. At the same time, it reduces the positioning error caused by improper position adjustment, and improves the accuracy and stability of butt-welding the butt-jointed steel bars.

[0015] This usage method: By precisely installing and adjusting the positioning shaft body in the guide rail groove, and cooperating with the positioning holes formed by the C-shaped sleeve body and the U-shaped buckle, the precise positioning of the butt-jointed steel bars is achieved, effectively reducing the deviation of the butt-jointed steel bars during the butt-jointing process, improving the construction quality. The introduction of the pre-marking step makes the position adjustment of the C-shaped sleeve body more intuitive and accurate, reducing the time and labor costs of repeated adjustments, and significantly improving the construction efficiency. The dimensional scale on the positioning shaft body cooperates with the scale window on the C-shaped sleeve body, providing an intuitive reference for the operator, which helps to precisely control the butt-jointing position of the butt-jointed steel bars. The multi-axis linkage fixing method of the U-shaped buckle enhances the stability of the butt-jointed steel bars, reducing the butt-joint deviation caused by external forces, and further improving the butt-jointing accuracy.

[0016] In summary, compared with the prior art, the present invention provides a detachable steel bar butt-joint positioning tooling and its usage method, having the following beneficial effects: 1. In the detachable steel bar butt-joint positioning tooling of the present invention, a pair of flanks that can be stuck in the guide rail groove are symmetrically provided on the part of the positioning shaft close to the shaft-end bolt. When the positioning shaft nut on the shaft-end bolt is not in a tightened state, the positioning shaft can freely slide along the length direction in the guide rail groove. According to different situations, the distance between the butt-jointed steel bars is arranged, and the positioning shaft can freely control the distance between the positioning shaft bodies to meet the needs of different situations; 2. In the detachable steel bar butt-joint positioning tooling of the present invention, one group of guide rail grooves is provided with guide rail legs and is fixedly connected, whereby the guide rail groove can be divided into upper and lower groups. The lower group of guide rail grooves includes the guide rail legs. According to the guide rail legs it has, it can be firmly clamped to the column edge when the tension bolt cooperates with the sleeve for tying, preventing the guide rail groove from slipping; 3. In the detachable steel bar butt joint positioning tooling of the present invention, the limit ring sleeve can slide freely on the positioning shaft. After the limit ring sleeve moves to the required position on the positioning shaft, the fastening pin is pulled and tightened, and the fixed connection can be achieved through the frictional force between the C-shaped sleeve body and the positioning shaft body. According to the scale on the positioning shaft body and the scale window on the limit ring sleeve, the position of the limit ring sleeve can be visually controlled during sliding on the positioning shaft, reducing the measurement operations required for positioning the butt joint steel bars; 4. In the usage method of the detachable steel bar butt joint positioning tooling of the present invention, the positioning shaft body is precisely installed and adjusted in the guide rail groove, and in cooperation with the positioning hole formed by the C-shaped sleeve body and the U-shaped buckle, the precise positioning of the butt joint steel bars is achieved, effectively reducing the offset deviation of the butt joint steel bars during the butt joint process, improving the construction quality. The introduction of the pre-marking step makes the position adjustment of the C-shaped sleeve body more intuitive and accurate, reducing the time and labor costs of repeated adjustment, significantly improving the construction efficiency. The dimension scale on the positioning shaft body cooperates with the scale window on the C-shaped sleeve body, providing an intuitive reference for the operator, helping to accurately control the butt joint position of the butt joint steel bars. The multi-axis linkage fixing method of the U-shaped buckle enhances the stability of the butt joint steel bars, reducing the butt joint offset deviation caused by external forces, and further improving the butt joint accuracy. Description of the Drawings

[0017] Figure 1 is the schematic diagram of the main structure of the present invention.

[0018] Figure 2 is the schematic diagram of the left-side sectional structure of the main structure of the present invention.

[0019] Figure 3 is the schematic diagram of the right-side sectional structure of the main structure of the present invention.

[0020] Figure 4 is the schematic diagram of the front elevation structure of the single-side structure of the main structure of the present invention.

[0021] Figure 5 is the schematic diagram of the top view structure of the single-side structure of the main structure of the present invention.

[0022] Figure 6 is the present invention Figure 4 the schematic diagram of the right-side sectional structure of the structure in.

[0023] Figure 7 is the present invention Figure 4 the schematic diagram of the left-side sectional structure of the structure in.

[0024] Figure 8 is the schematic diagram of the front elevation structure of the limit ring sleeve of the present invention.

[0025] Figure 9 is the schematic diagram of the left-side elevation structure of the limit ring sleeve of the present invention.

[0026] Figure 10 It is a schematic diagram of the right side elevation structure of the limit ring sleeve of the present invention.

[0027] Figure 11 It is a schematic top view structure diagram of the limit ring sleeve of the present invention.

[0028] Figure 12 It is a schematic diagram of the usage method of the present invention.

[0029] Explanation of reference numerals: 1. Main body structure; 2. Docking steel bars; 11. Guide rail groove; 12. Guide rail support leg; 13. Ring buckle; 21. Positioning shaft body; 22. Flank; 23. Shaft end bolt; 24. Positioning shaft nut; 25. Gasket; 30. Limit ring sleeve; 31. C-shaped sleeve body; 32. Sleeve hole; 33. Limit hook; 34. Fastening pin; 35. Scale window; 36. U-shaped buckle; 37. U-shaped buckle nut; 41. Tie bolt; 42. Sleeve. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] The present invention provides a technical solution, a detachable steel bar docking and positioning tooling, including: Please refer to Figure 1 and Figure 2 , the main body structure 1, and the shaft body guide rail, positioning shaft and limit ring sleeve 30 that make up the main body structure 1. The shaft body guide rail is composed of two groups of guide rail grooves 11, and a ring buckle 13 is sleeved on the surface of the guide rail groove 11, and a guide rail support leg 12 is installed on the lower surface of the guide rail groove 11. A tie bolt 41 is added between two adjacent groups of guide rail grooves 11, and a sleeve 42 is connected to the surface of the tie bolt 41; The guide rail groove 11 is made of high-strength aluminum alloy material and its surface is anodized, having good corrosion resistance and wear resistance. The ring buckle 13 is of a detachable design, facilitating the assembly and disassembly of the guide rail groove 11. The bottom of the guide rail support leg 12 is provided with an anti-slip rubber pad, which can effectively prevent the tooling from sliding during use.

[0032] The positioning shaft is composed of a positioning shaft body 21, a flank 22 and a shaft end bolt 23, and a positioning shaft nut 24 and a gasket 25 are connected to the surface of the shaft end bolt 23, and a size scale is provided on the upper surface of the positioning shaft body 21; The positioning shaft body 21 is made of high-quality carbon structural steel and is chrome-plated on the surface, which improves hardness and wear resistance. The wing 22 and the positioning shaft body 21 are integrally processed and formed to ensure the structural stability and accuracy. The shaft-end bolt 23 is made of high-strength alloy steel and is quenched on the surface, which improves the tensile strength and wear resistance.

[0033] The limit ring sleeve 30 is composed of a C-shaped sleeve body 31, a sleeve hole 32, a limit hook 33 and a fastening pin 34. A scale window 35 is provided on the upper surface of the C-shaped sleeve body 31, a U-shaped buckle 36 is connected to the inner cavity of the sleeve hole 32, and a butt joint steel bar 2 is additionally provided on the outside of the limit ring sleeve 30.

[0034] The C-shaped sleeve body 31 is made of spring steel and has good elasticity and fatigue resistance. The inner wall of the sleeve hole 32 is polished to reduce the frictional resistance with the U-shaped buckle 36. The limit hook 33 adopts an arc transition design to avoid stress concentration during the positioning of the butt joint steel bar 2.

[0035] For this positioning tooling, a pair of wings 22 that can be stuck in the guide rail groove 11 are symmetrically provided on the part of the positioning shaft close to the shaft-end bolt 23. When the positioning shaft nut 24 on the shaft-end bolt 23 is not in a tightened state, the positioning shaft can freely slide along the length direction in the guide rail groove 11. According to different situations, the distance of the butt joint steel bar 2 can be arranged, and the positioning shaft can freely control the distance between the positioning shaft bodies 21 to meet the needs of different situations; one group of the guide rail grooves 11 is provided with guide rail legs 12 and is fixedly connected, so that the guide rail groove 11 can be divided into upper and lower groups. The lower group of the guide rail grooves 11 includes the guide rail legs 12. According to the guide rail legs 12 it has, when the tension bolt 41 cooperates with the sleeve 42 for tying, it can firmly clamp the column edge to avoid the sliding of the guide rail groove 11; the limit ring sleeve 30 can freely slide on the positioning shaft. After the limit ring sleeve 30 moves to the required position on the positioning shaft, the fastening pin 34 is pulled and tightened, and it can be fixedly connected through the frictional force between the C-shaped sleeve body 31 and the positioning shaft body 21. According to the scale on the positioning shaft body 21 and the scale window 35 on the limit ring sleeve 30, the position of the limit ring sleeve 30 can be visually controlled when it slides on the positioning shaft, reducing the measurement operations required for positioning the butt joint steel bar 2.

[0036] The concave design of the guide rail groove 11 makes the positioning shaft more stable during the sliding process and not prone to deviation. The sleeved connection method of the loop 13 makes the assembly and disassembly of the guide rail groove 11 more convenient. The fixed connection method of the guide rail legs 12 enhances the overall stability of the tooling.

[0037] Please refer to Figure 4, the cross-section of the inner cavity of the guide rail groove 11 is designed in a concave shape, and the two groups of guide rail grooves 11 are arranged in a one-high-one-low layout on the same horizontal plane. This enables the corresponding structure to move between the two groups of guide rail grooves 11. The loop buckle 13 is sleeved and connected to the left and right ends of the outer surfaces of the two groups of guide rail grooves 11. Through the loop buckle 13, the two groups of guide rail grooves 11 can be detachably fixed.

[0038] The depth of the concave design of the guide rail groove 11 is precisely calculated to ensure the stability and accuracy of the positioning shaft during the sliding process. The one-high-one-low layout of the two groups of guide rail grooves 11 enables the tooling to adapt to the positioning requirements of the butt joint steel bars 2 at different heights. The sleeved connection method of the loop buckle 13 is simple and reliable, facilitating the quick assembly and disassembly of the guide rail groove 11.

[0039] Please refer to Figure 5 、 Figure 6 and Figure 7 , there are two groups of flank wings 22, and the flank wings 22 are arranged on the upper surface and the lower surface of the positioning shaft body 21. The shaft end bolt 23 is arranged at the end of the positioning shaft body 21. The flank wings 22 move in the same direction as the positioning shaft body 21, while the shaft end bolt 23 plays a role in fixing and positioning the positioning shaft body 21. The shaft end bolt 23 is installed at the end of the positioning shaft body 21. By tightening the shaft end bolt 23 and its supporting positioning shaft nut 24, the positioning shaft can be firmly fixed in the guide rail groove 11. This fixing method not only ensures the stability of the positioning shaft body 21 in the guide rail groove 11, but also enables the positioning shaft body 21 to be arranged at a predetermined position and spacing, thereby achieving the accurate positioning of the butt joint steel bars 2. At the same time, by loosening or tightening the positioning shaft nut 24, the position of the positioning shaft body 21 can be adjusted. This adjustment function enables the tooling to adapt to the butt joint requirements of different specifications and quantities of butt joint steel bars 2, improving the flexibility and versatility of the tooling. The scale window 35 corresponds to the position of the dimensional scale on the positioning shaft body 21. The dimensional scale on the positioning shaft body 21 can be conveniently observed through the scale window 35.

[0040] The setting of the flank wings 22 enhances the stability of the positioning shaft in the guide rail groove 11, preventing the positioning shaft from shifting during the sliding process. The fixing method of the shaft end bolt 23 is simple and reliable, facilitating the quick fixing and disassembly of the positioning shaft. The design of the scale window 35 enables the operator to directly observe the dimensional scale on the positioning shaft body 21, improving the positioning accuracy.

[0041] Please refer to Figure 8 、 Figure 9 、 Figure 10 and Figure 11, The U-shaped buckle 36 passes through the corresponding sleeve holes 32, and the sleeve holes 32 are opened on the surface of the C-shaped sleeve body 31. The U-shaped buckle 36 passes through the sleeve holes 32 of the C-shaped sleeve bodies 31 on the same column side, so as to uniformly control the protective layer thickness of the butt joint steel bars 2 to the column side. The surface of the U-shaped buckle 36 is threadedly connected with a U-shaped buckle nut 37. The U-shaped buckle nut 37 plays a role in fixing and positioning the U-shaped buckle 36.

[0042] The U-shaped buckle 36 is made of high-quality carbon structural steel and is surface galvanized, which improves corrosion resistance and wear resistance. The inner diameter of the sleeve hole 32 is precisely calculated to ensure that the U-shaped buckle 36 can smoothly pass through and be fixed on the C-shaped sleeve body 31. The design of the U-shaped buckle nut 37 makes the fixing and disassembly of the U-shaped buckle 36 more convenient.

[0043] Please refer to Figure 3 , The outer surface of the tie bolt 41 is provided with external threads, and the inner wall of the sleeve 42 is provided with internal threads, and the tie bolt 41 is threadedly connected with the sleeve 42. The sleeve 42 is sleeved on the tie bolt 41 to ensure that the threaded part of the sleeve 42 is completely aligned with the threaded part of the tie bolt 41, and the sleeve 42 is rotated to make it advance along the threaded direction of the tie bolt 41, so that the shaft guide rail ties the opposite sides through the tie bolt 41 and the sleeve 42.

[0044] The tie bolt 41 is made of high-strength alloy steel and is surface quenched, which improves the tensile strength and wear resistance. The sleeve 42 is made of high-quality carbon structural steel, and the inner wall is polished to reduce the frictional resistance with the tie bolt 41. The threaded connection method of the tie bolt 41 and the sleeve 42 is simple and reliable, which is convenient for the rapid assembly and disassembly of the tooling.

[0045] Please refer to Figure 12 , The present invention provides a method for using a detachable steel bar butt joint positioning tooling. Based on the above-mentioned detachable steel bar butt joint positioning tooling, it includes the following steps: S1. Installation and distance adjustment: According to the number of butt joint steel bars 2 to be positioned on each side, an equal amount of positioning shaft bodies 21 are placed in the upper and lower groups of guide rail grooves 11, the upper and lower groups of guide rail grooves 11 are fixed by the loop buckles 13, and the positions of the positioning shaft bodies 21 are adjusted by sliding left and right in the guide rail grooves 11 according to the steel bar distance. After the positioning shaft bodies 21 are in place, the positioning shaft nuts 24 are tightened; During the installation process, ensure the levelness of the guide rail grooves 11 to avoid tilting of the tooling during use. The sliding of the positioning shaft bodies 21 should be smooth and unobstructed. If there is a jamming phenomenon, it should be checked and adjusted in time.

[0046] S2. Position adjustment and fixation: Adjust the position of the corresponding C-shaped sleeve body 31 on the corresponding end on the positioning shaft body 21 according to the thickness of the protective layer. Pull up the fastening pin 34 and tighten the corresponding nut. Then pass the U-shaped buckle 36 through the sleeve hole 32 on the positioned C-shaped sleeve body 31, and sequentially pass through the sleeve holes 32 of the C-shaped sleeve bodies 31 on the other positioning shaft bodies 21 and fix them with the U-shaped buckle nut 37. Pull up the fastening pin 34 and tighten the corresponding nut; When adjusting the position of the C-shaped sleeve body 31, ensure its perpendicularity to the positioning shaft body 21 to avoid the offset of the butt joint steel bars 2 during the positioning process. The threading of the U-shaped buckle 36 should be tight without looseness to ensure the stability of the butt joint steel bars 2.

[0047] S3. Pass through the positioning holes: Pass each side of the butt joint steel bars 2 through the positioning holes formed by the limit hook 33 and the U-shaped buckle 36 on the adjusted and positioned C-shaped sleeve body 31; When passing through the positioning holes, ensure the concentricity of the butt joint steel bars 2 and the positioning holes to avoid stress concentration during the butt joint process.

[0048] S4. Connect the opposite-side tooling: Use the tie bolts 41 and sleeves 42 to connect the tooling on the opposite sides into a whole; When connecting the opposite-side tooling, ensure that the tightening torques of the tie bolts 41 are consistent to avoid deformation of the tooling during use.

[0049] S5. Completion of butt joint: Complete the butt joint work of the butt joint steel bars 2; During the butt joint process, closely monitor the deformation of the butt joint steel bars 2. If there is any abnormality, stop the butt joint in time and check the reasons.

[0050] S6. Disassemble the tooling: Remove the U-shaped buckle 36, tie bolts 41 and sleeves 42 in sequence, and disassemble the tooling for single-side butt joint positioning; When disassembling the tooling, carry out in the reverse order of installation to avoid damage to the tooling parts.

[0051] S7. Repeat the operation: Repeat operations S1 to S6 until all the butt joint steel bars 2 complete the butt joint work.

[0052] During the repeated operation process, pay attention to the cleaning and maintenance of the tooling to ensure the accuracy and stability of the tooling.

[0053] In step S2, it also includes a pre-marking step for the position of the C-shaped sleeve 31, that is, before adjusting the position of the C-shaped sleeve 31 on the positioning shaft body 21, pre-marking is first made on the C-shaped sleeve 31 or the guide rail groove 11 according to the thickness of the protective layer and the dimensional scale on the positioning shaft body 21. By adding the pre-marking step for the position of the C-shaped sleeve 31, it can provide a more intuitive and accurate reference when adjusting the position of the C-shaped sleeve 31, thereby improving the convenience and efficiency of using the tooling. The pre-marking can help the operator quickly determine the correct position of the C-shaped sleeve 31 on the positioning shaft body 21, reducing the time and labor waste caused by repeated adjustments. At the same time, it reduces the positioning error caused by improper position adjustment, and improves the accuracy and stability of butt-welding the butt-welding steel bars 2.

[0054] The pre-marking can be carried out by using a colored pen or a scoring method to ensure that it can be clearly visible when adjusting the position of the C-shaped sleeve 31. The accuracy of the pre-marking should be controlled within ±0.5 mm to ensure the positioning accuracy of the butt-welding steel bars 2.

[0055] This usage method: By precisely installing and adjusting the positioning shaft body 21 in the guide rail groove 11, and cooperating with the positioning holes formed by the C-shaped sleeve 31 and the U-shaped buckle 36, the precise positioning of the butt-welding steel bars 2 is achieved, effectively reducing the deviation of the butt-welding steel bars 2 during the butt-welding process and improving the construction quality. The introduction of the pre-marking step makes the position adjustment of the C-shaped sleeve 31 more intuitive and accurate, reducing the time and labor costs of repeated adjustments, and significantly improving the construction efficiency. The dimensional scale on the positioning shaft body 21 cooperates with the scale window 35 on the C-shaped sleeve 31 to provide an intuitive reference for the operator, helping to precisely control the butt-welding position of the butt-welding steel bars 2. The multi-axis linkage fixing method of the U-shaped buckle 36 enhances the stability of the butt-welding steel bars 2, reducing the butt-welding deviation caused by external forces and further improving the butt-welding accuracy. This usage method also considers the modular design of the tooling, making maintenance and replacement more convenient, reducing the maintenance cost, and extending the service life of the tooling. At the same time, the steps of the usage method of the tooling are clear and the operation is simple, reducing the requirements for the skill level of the operator and facilitating popularization and application.

[0056] On the part of this solution's positioning shaft close to the shaft-end bolt 23, a pair of wings 22 that can be stuck in the guide rail groove 11 are symmetrically provided. When the positioning shaft nut 24 on the shaft-end bolt 23 is not in a tightened state, the positioning shaft can freely slide along the length direction in the guide rail groove 11. According to the distance of arranging the butt-welding steel bars 2 in different situations, the positioning shaft can freely control the distance between the positioning shaft bodies 21 to meet the needs of different situations; One set of guide rail grooves 11 is provided with guide rail legs 12 and fixedly connected, whereby the guide rail grooves 11 can be divided into upper and lower groups. The lower group of guide rail grooves 11 includes the guide rail legs 12. According to the guide rail legs 12 it has, when the tension bolt 41 cooperates with the sleeve 42 for tying, it can firmly clamp the column edge to prevent the guide rail grooves 11 from slipping; The limit ring sleeve 30 can slide freely on the positioning shaft. When the limit ring sleeve 30 moves to the required position on the positioning shaft, pull the fastening pin 34 and tighten it. It can be fixedly connected by the friction force between the C-shaped sleeve body 31 and the positioning shaft body 21. According to the scale on the positioning shaft body 21 and the scale window 35 on the limit ring sleeve 30, the position of the limit ring sleeve 30 can be visually controlled when it slides on the positioning shaft, reducing the measurement operations required for positioning the butt joint steel bars 2. The usage method steps of the tooling are clear and the operation is simple, reducing the requirements for the skill level of operators, facilitating popularization and application. The modular design of the tooling components makes maintenance and replacement more convenient, reducing maintenance costs and extending the service life of the tooling; Before adjusting the position of the C-shaped sleeve body 31 on the positioning shaft body 21, first make a pre-mark on the C-shaped sleeve body 31 or the guide rail groove 11 according to the cover thickness and the dimension scale on the positioning shaft body 21. By adding the pre-marking step for the position of the C-shaped sleeve body 31, it can provide a more intuitive and accurate reference when adjusting the position of the C-shaped sleeve body 31, thereby improving the convenience and efficiency of using the tooling. The pre-mark can help the operator quickly determine the correct position of the C-shaped sleeve body 31 on the positioning shaft body 21, reducing the time and labor waste caused by repeated adjustments. At the same time, it reduces the positioning error caused by improper position adjustment and improves the accuracy and stability of the butt joint of the butt joint steel bars 2; Put an equal number of positioning shaft bodies 21 into the upper and lower groups of guide rail grooves 11 according to the number of butt joint steel bars 2 to be positioned on each side. Fix the upper and lower groups of guide rail grooves 11 with the ring buckle 13. Slide the positioning shaft body 21 left and right in the guide rail groove 11 according to the steel bar distance. After the positioning shaft body 21 is in place, tighten the positioning shaft nut 24; Adjust the position of the corresponding C-shaped sleeve body 31 on the positioning shaft body 21 at the corresponding end according to the cover thickness. Pull up the fastening pin 34 and tighten the corresponding nut. Then pass the U-shaped buckle 36 through the sleeve hole 32 on the already positioned C-shaped sleeve body 31, and sequentially pass through the sleeve holes 32 of the C-shaped sleeve bodies 31 on the other positioning shaft bodies 21 and fix them with the U-shaped buckle nut 37. Pull up the fastening pin 34 and tighten the corresponding nut; Pass each side of the butt joint steel bars 2 through the positioning holes formed by the limit hook 33 and the U-shaped buckle 36 on the already adjusted and positioned C-shaped sleeve body 31; Connect the toolings on the opposite sides into a whole with the tension bolt 41 and the sleeve 42; Complete the butt joint work of the butt joint steel bars 2; Remove the U-shaped buckle 36, the tension bolt 41 and the sleeve 42 in sequence, and disassemble the single-side butt joint positioning tooling; And repeat the above operations until all the butt joint steel bars 2 complete the butt joint work; By precisely installing and adjusting the positioning shaft body 21 in the guide rail groove 11 and cooperating with the positioning holes formed by the C-shaped sleeve body 31 and the U-shaped buckle 36, the precise positioning of the butt-jointed steel bars 2 is achieved, effectively reducing the deviation of the butt-jointed steel bars 2 during the butt-joint process, improving the construction quality. The introduction of the pre-marking step makes the position adjustment of the C-shaped sleeve body 31 more intuitive and accurate, reducing the time and labor costs of repeated adjustment and significantly improving the construction efficiency. The dimension scale on the positioning shaft body 21 cooperates with the scale window 35 on the C-shaped sleeve body 31, providing an intuitive reference for the operator and helping to accurately control the butt-joint position of the butt-jointed steel bars 2. The multi-axis linkage fixing method of the U-shaped buckle 36 enhances the stability of the butt-jointed steel bars 2, reducing the butt-joint deviation caused by external forces and further improving the butt-joint accuracy.

[0057] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0058] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detachable tooling for positioning butt joints of steel bars, characterized in that, Including: The main structure (1), and the shaft guide rail, positioning shaft and limit ring sleeve (30) that make up the main structure (1). The shaft guide rail is composed of two groups of guide rail grooves (11). A ring buckle (13) is sleeved on the surface of the guide rail groove (11), and a guide rail leg (12) is installed on the lower surface of the guide rail groove (11). A tie bolt (41) is additionally provided between two adjacent groups of guide rail grooves (11), and a sleeve (42) is connected to the surface of the tie bolt (41); The positioning shaft is composed of a positioning shaft body (21), side wings (22) and a shaft end bolt (23). A positioning shaft nut (24) and a gasket (25) are connected to the surface of the shaft end bolt (23), and a dimension scale is provided on the upper surface of the positioning shaft body (21); The limit ring sleeve (30) is composed of a C-shaped sleeve body (31), a sleeve hole (32), a limit hook (33) and a fastening pin (34). A scale window (35) is provided on the upper surface of the C-shaped sleeve body (31), a U-shaped buckle (36) is connected to the inner cavity of the sleeve hole (32), and a butt joint steel bar (2) is additionally provided on the outside of the limit ring sleeve (30).

2. The detachable steel bar butt joint positioning tooling according to claim 1, characterized in that: The cross-section of the inner cavity of the guide rail groove (11) is designed in a concave shape, and the two groups of guide rail grooves (11) are arranged in a layout with one high and one low on the same horizontal plane.

3. The detachable steel bar butt joint positioning tooling according to claim 1, characterized in that: The ring buckle (13) is sleeved and connected to the left and right ends of the outer surfaces of the two groups of guide rail grooves (11).

4. A detachable steel bar butt joint positioning tooling according to claim 1, characterized in that: There are two groups of the side wings (22), and the side wings (22) are arranged on the upper surface and the lower surface of the positioning shaft body (21). The shaft end bolt (23) is arranged at the end of the positioning shaft body (21).

5. The detachable steel bar butt joint positioning tooling according to claim 1, characterized in that: The positional relationship between the scale window (35) and the dimension scale on the positioning shaft body (21) corresponds.

6. A detachable steel bar butt joint positioning tooling according to claim 1, characterized in that: The U-shaped buckle (36) penetrates through the corresponding sleeve hole (32), and the sleeve hole (32) is opened on the surface of the C-shaped sleeve body (31).

7. A detachable steel bar butt joint positioning tooling according to claim 1, characterized in that: A U-shaped buckle nut (37) is threadedly connected to the surface of the U-shaped buckle (36).

8. A detachable steel bar butt joint positioning tooling according to claim 1, characterized in that: External threads are provided on the outer surface of the tie bolt (41), internal threads are provided on the inner wall of the sleeve (42), and the tie bolt (41) is threadedly connected to the sleeve (42).

9. A method for using a tooling for detachable steel bar butt joint positioning, based on the tooling for detachable steel bar butt joint positioning according to any one of claims 1-8, characterized in that: Including the following steps: S1. Installation and distance adjustment: Put an equal number of positioning shaft bodies (21) into the upper and lower groups of guide rail grooves (11) according to the number of butt joint steel bars (2) to be positioned on each side. Fix the upper and lower groups of guide rail grooves (11) by using the ring buckle (13). Slide the positioning shaft body (21) left and right in the guide rail groove (11) to adjust the position according to the steel bar distance. After the positioning shaft body (21) is in place, tighten the positioning shaft nut (24); S2. Position adjustment and fixation: Adjust the position of the corresponding C-shaped sleeve body (31) on the corresponding positioning shaft body (21) according to the thickness of the protective layer. Pull up the fastening pin (34) and tighten the corresponding nut. Then pass the U-shaped buckle (36) through the sleeve hole (32) on the already positioned C-shaped sleeve body (31), and sequentially pass through the sleeve holes (32) of the C-shaped sleeve bodies (31) on other positioning shaft bodies (21) and fix them with the U-shaped buckle nut (37). Pull up the fastening pin (34) and tighten the corresponding nut; S3. Pass through the positioning hole: Pass the butt joint steel bars (2) on each side through the positioning holes formed by the limit bending hooks (33) and U-shaped buckles (36) on the C-shaped sleeve body (31) with adjusted positioning; S4. Connection of the opposite-side tooling: Use the tie bolts (41) and sleeves (42) to connect the opposite-side tooling into a whole; S5. Completion of butt joint: Complete the butt joint work of the butt joint steel bars (2); S6. Disassembly of the tooling: Remove the U-shaped buckle (36), tie bolts (41) and sleeves (42) in sequence, and disassemble the tooling for unilateral butt joint positioning; S7. Repeated operation: Repeat operations S1 to S6 until all the butt joint steel bars (2) complete the butt joint work.

10. The method for using the detachable steel bar butt joint positioning tooling according to claim 9, characterized in that: In the step S2, it further includes the position pre-marking step of the C-shaped sleeve body (31), including making a pre-mark on the C-shaped sleeve body (31) or the guide rail groove (11) according to the protective layer thickness and the dimension scale on the positioning shaft body (21) before adjusting the position of the C-shaped sleeve body (31) on the positioning shaft body (21).

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