Reinforcing steel positioning and bending device for house building projects

Abstract

The application belongs to the technical field of house building engineering, and discloses a reinforcing steel bar positioning and bending device for house building engineering, which comprises a cabinet, a workbench is fixedly connected to the top of the cabinet, a bending assembly is installed on the workbench, a positioning assembly is installed at the middle position of the bending assembly, a bending length adjusting assembly is arranged on the left side of the bending assembly, and a protection assembly is connected to the workbench. In the bending length adjusting assembly, a third motor drives a lead screw, and the lead screw nut drives an L-shaped rod and a positioning baffle to move, and a pointer and a distance scale display the position in real time. Compared with manual measurement and marking, the automatic adjustment has high precision and high efficiency, the bending length can be quickly and accurately set when reinforcing steel bars of stair segments are processed, and the step modulus is matched. In large-scale standard layer construction, batch processing can also ensure that the reinforcing steel bar bending lengths are consistent, reduce rework, and adapt to prefabricated building standardized production.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, specifically a steel bar positioning and bending device for building construction. Background Technology

[0002] In the field of building construction, steel bars, as the "skeleton" of concrete structures, are directly related to the overall safety and stability of buildings in terms of their processing quality. Steel bar bending is the core link in the steel bar processing process that determines the accuracy of steel bar forming. From foundation beams and floor beams and slabs to shear walls and structural columns, steel bar components in different parts need to be bent according to strict angle and length requirements to adapt to the mechanical transmission needs of building structural nodes. For example, the anchorage bending angle of beam end steel bars and the distribution bending length of slab reinforcement bars all need to be precisely controlled.

[0003] Building construction involves a wide variety of steel reinforcement specifications, ranging from 6mm diameter fine structural steel bars to 32mm diameter beam main reinforcement bars, with cross-sectional shapes including plain round and ribbed types. Traditional positioning mechanisms are mostly rigid clamps or simple V-groove designs. When facing steel bars of different diameters and surface shapes, they are prone to slippage due to uneven distribution of clamping force, leading to positioning deviations. In the processing of steel reinforcement bars for shear wall edge members, if the main reinforcement bars are misaligned, it will cause uneven thickness of the protective layer of the member, weakening the seismic performance of the structure. For the bending of the distribution bars of the floor slab steel mesh, small positioning errors will accumulate and cause the mesh spacing to become disordered, affecting the uniformity of the floor slab stress.

[0004] Building construction has stringent requirements for the precision of steel bar bending length. For example, the bending dimensions of the steel bars in staircases need to be precisely matched with the step module. Excessive error can cause difficulties in formwork installation or abnormal structural stress. Existing methods mostly rely on manual measurement with tape measures and chalk marking, which is not only time-consuming and labor-intensive, but also difficult to meet the high-standard construction requirements due to human error. In large-scale standard floor construction, the inefficiency and error-proneness of manual marking will significantly slow down the steel bar processing progress, increase rework costs, and make it difficult to adapt to the requirements of prefabricated buildings and standardized construction for the precise mass production of steel bar components.

[0005] During the bending process of steel bars, the steel bars undergo violent deformation under the action of bending moment. In traditional open working environments, there are high risks such as steel bar springback and flying iron filings, which can easily cause burns and cuts to operators.

[0006] Therefore, a rebar positioning and bending device for building construction is proposed to address the above problems. Summary of the Invention

[0007] To address the problems mentioned in the background section, this invention provides a rebar positioning and bending device for building construction, which has the advantages of accurate positioning to adapt to rebars of various specifications, efficient control of bending length, and ensuring operational safety.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a rebar positioning and bending device for building construction, comprising a cabinet, a workbench fixedly connected to the top of the cabinet, a bending component installed on the workbench, a positioning component installed in the middle of the bending component, a bending length adjustment component provided on the left side of the bending component, and a protective component connected to the workbench;

[0009] The bending assembly includes a disc embedded in a workbench, the disc being rotatably connected to the workbench, a bending column being fixedly connected to the top edge of the disc, a gear ring being fixedly connected to the bottom of the disc, the gear ring being meshed with a first gear, and the first gear being connected to a first motor via a motor shaft.

[0010] The positioning component includes a fixed post that passes through the center of the disk. The top of the fixed post has two symmetrically arranged elliptical columns with matching clamping grooves. The bottom of the elliptical columns is fixedly connected to a rotating rod. The bottom end of the rotating rod passes through the fixed post and is connected to a second gear. One of the second gears is connected to a second motor through a motor shaft.

[0011] The bending length adjustment component includes a positioning baffle located on the left side of the elliptical cylinder. An L-shaped rod is fixedly connected to the left side of the positioning baffle. The bottom end of the L-shaped rod passes through the worktable and is connected to a lead screw nut. A lead screw is threadedly connected to the lead screw nut. A third motor is connected to one end of the lead screw. A pointer is fixedly connected to the front side of the positioning baffle. A distance scale is set on the worktable at the position corresponding to the pointer.

[0012] Preferably, the cabinet is provided with support feet at the four corners of the bottom, and a cabinet door is provided on the front side of the cabinet, with a handle on the cabinet door.

[0013] Preferably, the protective assembly includes a transparent cover that matches the workbench. The transparent cover is connected to the workbench via a connecting pivot. An extension plate is fixedly connected to the rear side of the transparent cover. A first pivot is installed at the end of the extension plate. The first pivot is connected to an electric telescopic rod. The electric telescopic rod is connected to a second pivot, which is located on the cabinet.

[0014] Preferably, the transparent cover has an opening on its right side, and a guide wheel is installed on the worktable at a position corresponding to the opening.

[0015] Preferably, a through groove is provided on the worktable at a position corresponding to the disk, the disk is disposed in the through groove, an annular sliding groove is provided on the inner wall of the through groove, an annular sliding strip is provided in the annular sliding groove, and the annular sliding strip is fixed on the disk.

[0016] Preferably, the fixing column is fixedly connected to the cabinet by a Z-shaped plate, the cross-section of the elliptical column is elliptical, and the clamping groove is provided at the corresponding position of the elliptical column.

[0017] Preferably, a limiting groove is provided on the worktable at the position corresponding to the L-shaped rod, and the L-shaped rod passes through the limiting groove.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. The positioning component of this invention uses two symmetrical elliptical cylinders with matching clamping slots. With the help of a second gear and a motor-driven rotating rod, the clamping angle and force can be flexibly adjusted. For steel bars of different diameters and surface morphologies, the elliptical cylinders can adapt to clamp the steel bars, ensuring uniform force distribution and preventing slippage.

[0020] 2. In the bending length adjustment component of this invention, the third motor drives the lead screw, which, together with the lead screw nut, drives the L-shaped rod and the positioning baffle to move. The pointer and distance scale display the position in real time. Compared with manual measurement and marking, the automated adjustment is more accurate and efficient. When processing the steel bars of the staircase section, the bending length can be set quickly and accurately to match the step module. In the construction of large-scale standard floors, batch processing can also ensure the consistency of the steel bar bending length, reduce rework, and adapt to the standardized production of prefabricated buildings.

[0021] 3. The transparent cover of the protective component of the present invention is linked to the worktable through a connecting shaft and is driven to open and close by an electric telescopic rod. During bending operations, the transparent cover closes the processing area to prevent the rebar from springing back and iron filings from flying, thus avoiding injury to the operator. The opening cooperates with the guide wheel to not affect the feeding of the rebar, ensuring both safety and maintaining the smoothness of processing. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a structural schematic diagram of the present invention from another angle;

[0024] Figure 3 This is a schematic diagram of the structure of the protective component of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the workbench of the present invention;

[0026] Figure 5 This is a schematic diagram of the bending assembly of the present invention;

[0027] Figure 6 This is a schematic diagram of the positioning component of the present invention;

[0028] Figure 7 This is a schematic diagram of the driving structure of the positioning component of the present invention;

[0029] Figure 8 This is a schematic diagram of the bending length adjustment component of the present invention.

[0030] In the diagram: 1. Server rack; 2. Workbench;

[0031] 3. Bending assembly; 31. Disc; 32. Bending column; 33. Gear ring; 34. First gear; 35. First motor;

[0032] 4. Positioning assembly; 41. Fixing post; 42. Elliptical cylinder; 43. Clamping groove; 44. Rotating rod; 45. Second gear; 46. Second motor;

[0033] 5. Bending length adjustment assembly; 51. Positioning baffle; 52. L-shaped rod; 53. Lead screw nut; 54. Lead screw; 55. Third motor; 56. Pointer; 57. Distance scale; 58. Limiting slot;

[0034] 6. Protective components; 61. Transparent cover; 62. Connecting pivot; 63. Extension plate; 64. First pivot; 65. Electric telescopic rod; 66. Second pivot;

[0035] 7. Support legs; 8. Cabinet door; 9. Handle; 10. Through opening; 11. Guide wheel; 12. Through groove; 13. Annular slide groove; 14. Annular slide bar; 15. Z-shaped plate. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] like Figures 1 to 8 As shown, the present invention provides a steel bar positioning and bending device for building construction, including a cabinet 1, a workbench 2 fixedly connected to the top of the cabinet 1, a bending component 3 installed on the workbench 2, a positioning component 4 installed in the middle of the bending component 3, a bending length adjustment component 5 provided on the left side of the bending component 3, and a protective component 6 connected to the workbench 2.

[0038] The bending assembly 3 includes a disc 31 embedded in the workbench 2. The disc 31 is rotatably connected to the workbench 2. A bending column 32 is fixedly connected to the top edge of the disc 31. A gear ring 33 is fixedly connected to the bottom of the disc 31. The gear ring 33 is meshed with a first gear 34. The first gear 34 is connected to a first motor 35 through a motor shaft.

[0039] The positioning component 4 includes a fixed post 41 that runs through the center of the disc 31. The top of the fixed post 41 has two symmetrically arranged elliptical posts 42. The elliptical posts 42 have matching clamping grooves 43. The bottom of the elliptical posts 42 is fixedly connected to a rotating rod 44. The bottom end of the rotating rod 44 passes through the fixed post 41 and is connected to a second gear 45. One of the second gears 45 is connected to a second motor 46 through a motor shaft. The positioning component 4 uses two symmetrical elliptical posts 42 with matching clamping grooves 43. With the help of the second gear 45 and the motor driving the rotating rod 44, the clamping angle and force can be flexibly adjusted. For steel bars of different diameters and surface morphologies, the elliptical posts 42 can adaptably clamp the steel bars, so that the force is evenly distributed and slippage is avoided.

[0040] The bending length adjustment component 5 includes a positioning baffle 51 located on the left side of the elliptical cylinder 42. An L-shaped rod 52 is fixedly connected to the left side of the positioning baffle 51. The bottom end of the L-shaped rod 52 passes through the workbench 2 and is connected to a lead screw nut 53. A lead screw 54 is threadedly connected to the lead screw nut 53. A third motor 55 is connected to one end of the lead screw 54. A pointer 56 is fixedly connected to the front side of the positioning baffle 51. A distance scale 57 is set on the workbench 2 at the position corresponding to the pointer 56. In the bending length adjustment component 5, the third motor 55 drives the lead screw 54, which, in conjunction with the lead screw nut 53, drives the L-shaped rod 52 and the positioning baffle 51 to move. The pointer 56 and the distance scale 57 display the position in real time. Compared with manual measurement and marking, the automated adjustment has high accuracy and high efficiency. When processing the steel bars of the staircase section, the bending length can be set quickly and accurately to match the step module. In large-scale standard floor construction, batch processing can also ensure the consistency of the steel bar bending length, reduce rework, and adapt to the standardized production of prefabricated buildings.

[0041] Specifically, support feet 7 are provided at the four corners of the bottom of the cabinet 1, and cabinet doors 8 are provided on the front side of the cabinet 1, with handles 9 on the cabinet doors 8.

[0042] Furthermore, the protective component 6 includes a transparent cover 61 that matches the workbench 2. The transparent cover 61 is connected to the workbench 2 via a connecting shaft 62. An extension plate 63 is fixedly connected to the rear side of the transparent cover 61. A first shaft 64 is installed at the end of the extension plate 63. The first shaft 64 is connected to an electric telescopic rod 65. The electric telescopic rod 65 is connected to a second shaft 66, which is located on the cabinet 1. The transparent cover 61 of the protective component 6 is linked to the workbench 2 via the connecting shaft 62. The electric telescopic rod 65 is driven to open and close. During bending operations, the transparent cover 61 closes the processing area, preventing the rebar from springing back and iron filings from flying, thus avoiding injury to the operator. The opening 10 cooperates with the guide wheel 11, which does not affect the feeding of rebar, ensuring both safety and maintaining smooth processing.

[0043] Furthermore, a through-hole 10 is provided on the right side of the transparent cover 61, and a guide wheel 11 is installed on the workbench 2 at the position corresponding to the through-hole 10.

[0044] It is worth noting that a through groove 12 is provided on the workbench 2 at the position corresponding to the disc 31. The disc 31 is located in the through groove 12. An annular slide groove 13 is provided on the inner wall of the through groove 12. An annular slide bar 14 is provided in the annular slide groove 13 and is fixed on the disc 31.

[0045] It is worth noting that the fixed column 41 is fixedly connected to the cabinet 1 through the Z-shaped plate 15, the cross-section of the elliptical column 42 is elliptical, and the clamping groove 43 is provided at the corresponding position of the elliptical column 42.

[0046] It is worth mentioning that a limiting groove 58 is provided on the worktable 2 at the position corresponding to the L-shaped rod 52, and the L-shaped rod 52 passes through the limiting groove 58.

[0047] Among them, the first motor 35, the second motor 46, the third motor 55, and the electric telescopic rod 65 are existing technologies and will not be described in detail; at the same time, the present invention also includes power supply, controller and switch, etc., which are not the main technical points of this patent and will not be described in detail.

[0048] Working principle and process: First, according to the requirements for the bending length of the reinforcing bars in the construction drawings, the corresponding parameters are input into the equipment control system. After receiving the instruction, the third motor 55 drives the lead screw 54 to rotate, and the lead screw nut 53 moves horizontally along the lead screw 54, causing the connected L-shaped rod 52 and the positioning baffle 51 to move synchronously. The operator observes the correspondence between the pointer 56 on the front side of the positioning baffle 51 and the distance scale 57 on the worktable 2 until the pointer 56 accurately points to the set scale, completing the pre-positioning of the bending length. Then, the reinforcing bar to be processed is placed on the worktable 2 through the right opening 10 of the transparent cover 61 and the guide wheel 11, so that one end of the reinforcing bar passes between the two symmetrical elliptical cylinders 42 of the positioning component 4 and abuts against the positioning baffle 51. According to the specifications of the reinforcing bar, the clamping parameter instruction is input into the control system, and the second motor 46 drives the rotating rod 44 to move the elliptical cylinders. 42. Rotate and adjust the opening and centering position of the clamping groove 43 to tightly fit the surface of the steel bar and further clamp the steel bar. The fixing column 41 provides stable support through the Z-shaped plate 15 to prevent slippage during processing. After completing the above operations, the electric telescopic rod 65 pushes the transparent cover 61 to rotate around the connecting shaft 62 to close the bending area. The first motor 35 starts and drives the first gear 34 to drive the gear ring 33 and the disc 31 to rotate along the annular slide groove 13. The bending column 32 then makes a circular motion to apply a bending moment to the steel bar and bends it at the set angle. The positioning component 4 continuously and stably clamps to ensure the angle is accurate. After the steel bar is bent, the first motor 35 reverses to reset the bending column 32. The electric telescopic rod 65 opens the transparent cover 61. The second motor 46 drives the elliptical column 42 to rotate in the opposite direction to release the steel bar. The operator removes the finished product. If further processing is required, the above process is repeated.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steel bar positioning and bending device for building construction, comprising a cabinet (1), characterized in that: The top of the cabinet (1) is fixedly connected to a workbench (2), a bending assembly (3) is installed on the workbench (2), a positioning assembly (4) is installed in the middle of the bending assembly (3), a bending length adjustment assembly (5) is provided on the left side of the bending assembly (3), and a protective assembly (6) is connected to the workbench (2). The bending assembly (3) includes a disc (31) embedded in the workbench (2), the disc (31) being rotatably connected to the workbench (2), a bending column (32) being fixedly connected to the top edge of the disc (31), a gear ring (33) being fixedly connected to the bottom of the disc (31), the gear ring (33) being meshed with a first gear (34), and the first gear (34) being connected to a first motor (35) via a motor shaft; The positioning component (4) includes a fixed post (41) that passes through the center of the disk (31). The top of the fixed post (41) is provided with two symmetrically arranged elliptical posts (42). The elliptical posts (42) are provided with matching clamping grooves (43). The bottom of the elliptical posts (42) is fixedly connected to a rotating rod (44). The bottom end of the rotating rod (44) passes through the fixed post (41) and is connected to a second gear (45). One of the second gears (45) is connected to a second motor (46) through a motor shaft. The bending length adjustment component (5) includes a positioning baffle (51) located on the left side of the elliptical cylinder (42). An L-shaped rod (52) is fixedly connected to the left side of the positioning baffle (51). The bottom end of the L-shaped rod (52) passes through the worktable (2) and is connected to a lead screw nut (53). The lead screw nut (53) is threadedly connected to a lead screw (54). One end of the lead screw (54) is connected to a third motor (55). A pointer (56) is fixedly connected to the front side of the positioning baffle (51). A distance scale (57) is set on the worktable (2) at the position corresponding to the pointer (56).

2. The rebar positioning and bending device for building construction according to claim 1, characterized in that: The cabinet (1) has support feet (7) at the four corners of the bottom, and a cabinet door (8) is provided on the front side of the cabinet (1). The cabinet door (8) has a handle (9).

3. The rebar positioning and bending device for building construction according to claim 1, characterized in that: The protective component (6) includes a transparent cover (61) that matches the workbench (2). The transparent cover (61) is connected to the workbench (2) via a connecting pivot (62). An extension plate (63) is fixedly connected to the rear side of the transparent cover (61). A first pivot (64) is installed at the end of the extension plate (63). An electric telescopic rod (65) is connected to the first pivot (64). The electric telescopic rod (65) is connected to a second pivot (66). The second pivot (66) is located on the cabinet (1).

4. A rebar positioning and bending device for building construction according to claim 3, characterized in that: The transparent cover (61) has an opening (10) on its right side, and a guide wheel (11) is installed on the workbench (2) at the position corresponding to the opening (10).

5. A rebar positioning and bending device for building construction according to claim 1, characterized in that: A through groove (12) is provided on the workbench (2) at the position corresponding to the disc (31). The disc (31) is located in the through groove (12). An annular sliding groove (13) is provided on the inner wall of the through groove (12). An annular sliding strip (14) is provided in the annular sliding groove (13). The annular sliding strip (14) is fixed on the disc (31).

6. A rebar positioning and bending device for building construction according to claim 1, characterized in that: The fixed column (41) is fixedly connected to the cabinet (1) through the Z-shaped plate (15). The cross-section of the elliptical column (42) is elliptical. The clamping groove (43) is located at the corresponding position of the elliptical column (42).

7. A rebar positioning and bending device for building construction according to claim 1, characterized in that: A limiting groove (58) is provided on the workbench (2) at the position corresponding to the L-shaped rod (52), and the L-shaped rod (52) passes through the limiting groove (58).

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