Steel bar bending device

Abstract

The utility model provides a reinforcing steel bar bending device, which belongs to the technical field of reinforcing steel bar bending and comprises a machining table, the machining table is fixedly mounted on the upper side wall of a supporting table, an inner cavity of a supporting seat is movably connected with a bending pulley through a central shaft, and a movable rod sequentially penetrates through the side wall of the supporting table and the inner cavity of the machining table and extends to the outside. A driving mechanism used for pushing the movable plate is arranged in an inner cavity of the supporting table, when a steel bar part is bent, the steel bar is located between the two positioning plates while being located on the surfaces of the bending pulleys, then the positions of the two bending pulleys are adjusted according to the bending degree of bending, then the movable end of the air cylinder drives the bending part to move, and therefore the steel bar part is bent. The bending part bends the steel bar along with movement of the movable end of the air cylinder, the operation process is more convenient, the steel bar bending position is adjusted according to the requirement for the bending degree of the steel bar, and therefore the steel bar bending device can be suitable for machining of different bending degrees and has applicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel bar bending, and particularly relates to a steel bar bending device. Background Art

[0002] Rebar refers to steel used in reinforced concrete and prestressed concrete. Its cross-section is round, or sometimes square with rounded corners. It includes plain round bars, ribbed bars, and twisted bars. Rebar installation in different locations requires different processing, and some locations require bending.

[0003] Related technology (publication number: CN212822323U) discloses a steel bar bending machine with positioning tooling, and the disclosed technical solution is as follows: a bending pressure head is provided just above the bending base, the bending base includes a base fixing plate, a bending pad is provided at the upper end of the base fixing plate, bending guide rollers are provided at both ends of the bending pad, the bending guide rollers are mounted on the bending pad through a roller mounting shaft, an end positioning screw is provided at one end of the base fixing plate, the end positioning screw is mounted on the positioning bracket through an adjusting nut 7, the positioning bracket is mounted on the base fixing plate through a fixing bolt, which can realize accurate positioning of the steel bar and improve processing accuracy, and a plurality of position adjustment holes are provided on the processing support column, and the processing support platform is mounted in the position adjustment hole on the processing support column through the position adjustment bolt, which can adjust the equipment according to different use environments and is very convenient to use;

[0004] In the above-disclosed technical solutions, the following problems were found in the related technologies: during the bending process of steel bars, since the steel bars are rod structures, the contact surface is small due to the positioning screw limit, which may cause the steel bars to fall off during the positioning process, causing danger. In addition, the bending requirements of steel bars vary, and the applicability of a single bending angle is low. In response to this, we have proposed a new steel bar bending device;

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background technology section of this application, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Utility Model Content

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art or related art. In order to solve the problem of steel bar bending in the prior art, the present invention provides a steel bar bending device that uses a bending mechanism combined with a positioning mechanism to improve the bending quality. The specific technical solution is as follows:

[0007] The movable plate is symmetrically provided with a positioning mechanism, and the inner side wall of the support platform is symmetrically fixed with one end of a movable rod, and the other end of the movable rod is fixedly installed with a supporting seat, and the inner cavity of the support seat is movably connected to a bending pulley through a central axis, and the movable rod sequentially penetrates the side wall of the support platform and the inner cavity of the processing platform and extends to the outside, and the inner cavity of the support platform is provided with a driving mechanism for pushing the movable plate.

[0008] In addition, the steel bar bending device in the above technical solution provided by the present invention may also have the following additional technical features:

[0009] In the above technical solution, the positioning mechanism includes two positioning plates, and the two positioning plates are symmetrically slidably connected to the upper side walls of the processing table. The side walls of the positioning plates are fixedly installed with a first connecting seat, and the first connecting seat is rotatably connected to the outer side wall of the second connecting seat. The side walls of the second connecting seat are fixedly installed with a threaded rod, and the outer side wall of the threaded rod is threadedly connected to a fixed seat, and the two fixed seats are symmetrically fixed in the inner cavities of the two brackets.

[0010] The inner side wall of the first connecting seat is uniformly provided with a plurality of movable grooves in the circumferential direction, and the outer side wall of the second connecting seat is uniformly provided with a sliding groove in the circumferential direction. Balls are uniformly embedded and installed in the inner cavities of the plurality of movable grooves and the sliding grooves.

[0011] A sliding block is embedded in the inner cavity of the positioning plate, and the sliding block is slidably connected to the outer side wall of the sliding rod. Both ends of the sliding rod are fixedly mounted on the upper side wall of the processing table through symmetrical mounting plates.

[0012] The driving mechanism includes a screw, wherein both ends of the screw are symmetrically connected to the mounting seats for rotation, and the two mounting seats are symmetrically fixedly mounted on the inner side wall of the support platform, and the outer side wall of the screw is symmetrically threadedly connected to the first movable seat, and the upper side walls of the two first movable seats are symmetrically connected to the two ends of the scissors frame for rotation, and the other two ends of the scissors frame are symmetrically connected to the second movable seat for rotation, and the two second movable seats are symmetrically connected to the outer side wall of the guide rod, and the guide rod is fixedly mounted on the lower side wall of the movable plate, and a motor is fixedly mounted on the inner side wall of the support platform, and the output shaft of the motor is fixedly connected to one end of the screw.

[0013] Stabilizing rods are symmetrically fixedly mounted on the inner sidewalls of the support platform, and the movable plate is slidably connected to the outer sidewalls of the two stabilizing rods.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. When bending the steel bar, make the steel bar sit on the surface of the bending pulley and between the two positioning plates, then adjust the position of the two bending pulleys according to the curvature of the bend, and then the movable end of the cylinder drives the bending part to move, so that the bending part bends the steel bar as the movable end of the cylinder moves, making the operation process more convenient, and adjusting the bending position of the steel bar according to the curvature requirement of the steel bar, so that it can be applied to processing with different curvatures, and thus has applicability.

[0016] 2. When bending and positioning the steel bars, place the steel bars on the surface of the two bending pulleys, and then screw the two threaded rods at the same time. As the threaded rods move, the first connecting seat is pushed to move, so that the first connecting seat drives the positioning plate to move. By adjusting the distance between the two positioning plates, the steel bars are limited to ensure the stability of the steel bar bending process. The distance between the two positioning plates is adjusted according to the steel bar specifications, which can be applied to steel bar bending processing of different lengths.

[0017] 3. In the process of rotating the screw to push the first connecting seat to move the positioning plate through the second connecting seat, the second connecting seat drives the circumferential sliding groove on the outer surface to slide on the outer surface of multiple balls, and at the same time, each ball slides on the inner wall of each movable groove. The stability of the rotation process of the second connecting seat is ensured by the multiple circumferential balls, thereby ensuring the stability of the positioning of the positioning plate on the steel bar.

[0018] 4. When adjusting the position of the positioning plate by rotating the lead screw, the positioning plate drives the slider to slide against the outer surface of the slide rod. The sliding cooperation between the slider and the slide rod ensures the stability of the moving direction of the positioning plate, avoids the position deviation of the positioning plate, and thus ensures the stability of the steel bar processing process.

[0019] 5. When adjusting the bending degree of the steel bar, the output shaft of the motor drives the lead screw to rotate between the two mounting seats, and the folding change of the scissors frame drives the movable plate to move, so that the movable plate drives the movable rod on the surface to move, and the movable rod drives the bending pulley to move. Adjustment is made according to the bending degree, making the operation process more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a steel bar bending device of the present utility model;

[0021] Figure 2This is a structural cross-sectional view of a steel bar bending device of the present invention;

[0022] Figure 3 for Figure 2 A local enlarged view of point A;

[0023] Figure 4 for Figure 2 A partial enlarged view of point B;

[0024] in, Figures 1 to 4 The correspondence between the figure marks and the component names is: 1-processing table, 2-support table, 3-bracket, 4-top plate, 5-bending seat, 6-bending part, 7-movable rod, 8-support seat, 9-bending pulley, 10-center axis, 11-bending groove, 13-sliding rod, 14-mounting plate, 15-first connecting seat, 16-threaded rod, 17-second connecting seat, 18-cylinder, 19-positioning plate, 20-fixed frame, 21-fixed seat, 22-screw, 23-second movable seat, 24-first movable seat, 25-guide rod, 26-mounting seat, 27-motor, 28-slide groove, 29-ball, 30-movable groove, 31-movable plate, 33-scissors frame, 34-slider, 36-stabilizing bar. DETAILED DESCRIPTION

[0025] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0027] The following is a combination of specific implementation cases and attached Figure 1-4 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0028] Example 1

[0029] A steel bar bending device, such as Figures 1-4As shown, it includes a processing table 1, which is fixedly mounted on the upper side wall of the support table 2, and the processing table 1 is fixedly fixed to the upper surface of the support table 2. The upper side wall of the processing table 1 is fixedly mounted with a bending seat 5, and the bending seat 5 is fixedly fixed to the upper surface of the processing table 1. The upper side wall of the bending seat 5 is provided with a bending groove 11, and the steel bars on the bending seat 5 are bent by the bending groove 11. The upper side wall of the processing table 1 is fixedly mounted with a top plate 4 through a symmetrical bracket 3, and the upper side wall of the top plate 4 is fixedly mounted with a cylinder 18 through a fixing bracket 20. The movable end of the cylinder 18 is fixedly mounted with a bending part 6, and the movable end of the cylinder 18 passes through the inner cavity of the top plate 4 and extends to the outside. The lower surfaces of the two brackets 3 are vertically fixed to the upper surface of the processing table 1 in parallel with each other, and the upper surfaces of the two brackets 3 are fixedly mounted. The surfaces are vertically fixed on the lower surface of the top plate 4 and parallel to each other. The top plate 4 is fixed on the processing table 1 through two brackets 3. The fixing frame 20 is vertically fixed on the upper surface of the top plate 4. The cylinder end of the cylinder 18 is vertically fixed on the fixing frame 20. The movable end of the cylinder 18 drives the bending part 6 to slide in the through hole of the inner cavity of the top plate 4. The cylinder 18 is connected to the controller through two air pipes. The two air pipes are respectively connected to the input and output ends of the compressed air. The opening and closing of the internal solenoid valve is controlled by the controller, so that the compressed air is input into the interior of the cylinder 18 through the air pipe, thereby making the movable end of the cylinder 18 telescopic and movable. The upper side wall of the processing table 1 is symmetrically provided with a positioning mechanism, and the inner side wall of the support table 2 is slidably connected with a movable plate 31. The movable plate 31 It slides on the inner surface of the support table 2, and one end of the movable rod 7 is symmetrically fixed to the upper side wall of the movable plate 31, and the other end of the movable rod 7 is fixed to a support seat 8. The inner cavity of the support seat 8 is movably connected with a bending pulley 9 through a central axis 10. The movable rod 7 passes through the side wall of the support table 2 and the inner cavity of the processing table 1 in turn and extends to the outside. The inner cavity of the support table 2 is provided with a driving mechanism for pushing the movable plate 31. The lower ends of the two movable rods 7 are vertically fixed to the upper surface of the movable plate 31 in parallel with each other, and the upper ends of the two movable rods 7 pass through the upper surface of the support table 2 and the inner direction of the processing table 1 in turn and slide in the through hole. The end of the movable rod 7 extending out of the outside of the processing table 1 is fitted with the fixed support seat 8, and the inner walls on the front and back sides of the support seat 8 are divided The two ends of the central shaft 10 are respectively embedded in the inside of the two bearings, and the bending pulley 9 is fixedly sleeved on the outer surface of the central shaft 10 through the mounting hole opened in the center, so that the bending pulley 9 rotates inside the support seat 8 along with the central shaft 10. The two support seats 8 are symmetrically arranged on both sides of the bending seat 11. When bending the steel bar, the steel bar is placed between the two positioning plates 19 and on the surface of the two bending pulleys 9, and then the distance between the two positioning plates 19 is adjusted according to the length specification of the steel bar, so that the steel bar is located on the surface of the bending pulley 9 and between the two positioning plates 19, and then the position of the two bending pulleys 9 is adjusted according to the curvature of the bend, and then the solenoid valve of the air guide pipe connected to the cylinder 18 is opened.The movable end of the cylinder 18 drives the bending member 6 to move, so that the bending member 6 bends the steel bar as the movable end of the cylinder 18 moves, making the operation process more convenient. The bending position of the steel bar can be adjusted according to the requirements of the bending degree of the steel bar, so that it can be applied to the processing of different curvatures, thereby having applicability.

[0030] Among them, the positioning mechanism includes two positioning plates 19, and the two positioning plates 19 are symmetrically slidably connected to the upper side walls of the processing table 1. The two positioning plates 19 slide parallel to each other on the upper surface of the processing table 1, and the side walls of the positioning plates 19 are fixedly installed with a first connecting seat 15, and the first connecting seat 15 is rotatably connected to the outer wall of the second connecting seat 17. The side walls of the second connecting seat 17 are fixedly installed with a threaded rod 16, and the outer wall of the threaded rod 16 is threadedly connected to a fixing seat 21. The two fixing seats 21 are symmetrically fixedly installed in the inner cavity of the two brackets 3, and the two fixing seats 21 are symmetrically fixedly embedded in the interior of the two brackets 3, and the two fixing seats 21 are on the same horizontal line. A threaded through hole is horizontally opened in the inner cavity of the fixing seat 21, and the threaded rod 16 is threadedly connected to the fixing seat 21 and the two ends of the threaded rod 16 extend from the outside of both sides of the fixing seat 21 respectively, and one end of the threaded rod 16 is vertically fixed to the second connecting seat 17, the first connecting seat 15 is fixed on the back side of the two positioning plates 19, and grooves are respectively provided on the back side of the two first connecting seats 15. The second connecting seat 17 is embedded in the inside of the groove and fits in the circumferential rotation of its inner wall. When the steel bar is bent and positioned, the steel bar is placed on the surface of the two bending pulleys 9, and then the two threaded rods 16 are screwed at the same time, so that the threaded rod 16 drives the second connecting seat 17 to rotate and move through the limit of the fixed seat 21, so that the second connecting seat 17 fits in the first connecting seat 15 and rotates inside. As the threaded rod 16 moves, the first connecting seat 15 is pushed to move, so that the first connecting seat 15 drives the positioning plate 19 to move. By adjusting the distance between the two positioning plates 19, the steel bar is limited, which ensures the stability of the steel bar bending process. The distance between the two positioning plates 19 is adjusted according to the steel bar specifications, which can be suitable for steel bar bending processing of different lengths.

[0031] It is worth noting that the inner wall of the first connecting seat 15 is uniformly provided with a plurality of movable grooves 30 in the circumferential direction, and the outer wall of the second connecting seat 17 is uniformly provided with a slide groove 28 in the circumferential direction. The inner cavities of the plurality of movable grooves 30 and the slide grooves 28 are uniformly embedded with balls 29. The inner surface of the second connecting seat 17 and the movable cavity of the first connecting seat 15 is continuously provided with a circle of movable grooves 30. The outer surface of the second connecting seat 17 and the position corresponding to the first connecting seat 15 is provided with a circle of slide grooves 28. Balls 29 are movably embedded in the multiple movable cavities formed by the slide grooves 28. When the rotating screw 16 pushes the first connecting seat 15 to move the positioning plate 19 through the second connecting seat 17, the second connecting seat 17 drives the circumferential slide grooves 28 on the outer surface to slide on the outer surfaces of the multiple balls 29. At the same time, each ball 29 slides on the inner wall of each movable groove 30. The stability of the rotation process of the second connecting seat 17 is guaranteed by the multiple circumferential balls 29, thereby ensuring the stability of the positioning of the positioning plate 19 on the steel bar.

[0032] In addition, a slider 34 is embedded in the inner cavity of the positioning plate 19, and the slider 34 is slidably connected to the outer wall of the slide rod 13. The two ends of the slide rod 13 are fixedly mounted on the upper side wall of the processing table 1 through symmetrical mounting plates 14. The two mounting plates 14 are vertically fixed to the upper surface of the processing table 1 in parallel with each other, and the two ends of the slide rod 13 are respectively vertically fixed to the opposite surfaces of the two mounting plates 14. The slider 34 is movably sleeved on the outer surface of the slide rod 13 through the mounting hole opened in the center. The slider 34 is fixedly embedded in the interior of the positioning plate 19. When the position of the positioning plate 19 is adjusted by rotating the lead screw 16, the positioning plate 19 drives the slider 34 to slide on the outer surface of the slide rod 13. The sliding cooperation between the slider 34 and the slide rod 13 ensures the stability of the moving direction of the positioning plate 19, avoids the position deviation of the positioning plate 19, and thus ensures the stability of the steel bar processing process.

[0033] In addition, the driving mechanism includes a screw 22, and the two ends of the screw 22 are symmetrically connected to the mounting seats 26 for rotation. The two mounting seats 26 are symmetrically fixed on the inner side wall of the support platform 2, and the two mounting seats 26 are parallel to each other and vertically fixed on the inner wall of the lower surface of the support platform 2. Bearings are embedded in the opposite surfaces of the two mounting seats 26, and the two ends of the screw 22 are embedded in the inside of the two bearings, so that the screw 22 rotates between the two mounting seats 26 on the inner wall of the lower surface of the support platform 2. The outer wall of the screw 22 is symmetrically threaded with a first movable seat 24, and two parts of external threads with opposite threads and the same pitch are symmetrically opened on the outer surface of the screw 22 from the center position to both sides. The two first movable seats 24 are connected to the screw through the threaded through hole opened in the center. The two parts of the outer surface of 22 are connected by external threads, so that when the screw 22 rotates, the two first movable seats 24 move relative to or back to back, and the upper side walls of the two first movable seats 24 are symmetrically rotated and connected to the two ends of the scissors frame 33, and the other two ends of the scissors frame 33 are symmetrically rotated and connected to the second movable seat 23. The two second movable seats 23 are symmetrically slidably connected to the outer side wall of the guide rod 25, and the guide rod 25 is fixedly mounted on the lower side wall of the movable plate 31. The two ends of the guide rod 25 are respectively fixedly mounted vertically on the two plate bodies, and the two plate bodies are vertically fixed to the lower surface of the movable plate 31 in parallel with each other. The two second movable seats 23 are respectively movably sleeved on the outer surface of the guide rod 25 through the embedded mounting holes, so that the two second movable seats 23 fit symmetrically. The scissors frame 33 slides on the outer surface of the guide rod 25, and a rotating shaft is installed on the surface of the first movable seat 24 and the second movable seat 23. Each end of the scissors frame 33 is movably sleeved on the outer surface of the rotating shaft on the surface of each first movable seat 24 and the second movable seat 23 through the opening of the mounting hole, so that each end of the scissors frame 33 is hinged to the two first movable seats 24 and the second movable seat 23 respectively. A motor 27 is fixedly installed on the inner side wall of the support platform 2, and the output shaft of the motor 27 is fixedly connected to one end of the screw 22. The motor 27 is fixed to the inner wall of the lower surface of the support platform 2, and the output shaft of the motor 27 passes through the inner cavity of the mounting seat 26 at the corresponding position and is fixedly connected to one end of the screw 22. The output shaft of the motor 27 rotates in the through hole in the inner cavity of the mounting seat 26. The motor 27 The motor 27 is electrically connected to the external power supply through a wire. When adjusting the bending degree of the steel bar, the motor 27 is connected to the power supply, so that the output shaft of the motor 27 drives the screw 22 to rotate between the two mounting seats 26, so that the two first movable seats 24 threadedly connected to the outer surface of the screw 22 move relative to each other, so that the two first movable seats 24 respectively drive the lower two ends of the surface-hinged scissors frame 33 to move relative to each other, so that the upper two ends of the scissors frame 33 respectively drive the hinged second movable seats 23 to slide on the outer surface of the guide rod 25, and the folding change of the scissors frame 33 drives the movable plate 31 to move, so that the movable plate 31 drives the movable rod 7 on the surface to move, and the movable rod 7 drives the bending pulley 9 to move, and adjustment is performed according to the curvature, making the operation process more convenient.

[0034] Furthermore, the inner wall of the support platform 2 is symmetrically fixed with stabilizing rods 36, and the two stabilizing rods 36 are fixed in parallel to the inner cavity of the support platform 2. The movable plate 31 is slidably connected to the outer wall of the two stabilizing rods 36. The movable plate 31 is movably sleeved on the outer surface of the two stabilizing rods 36 through two through holes symmetrically opened in the inner cavity, so that the movable plate 31 slides on the outer surface of the two parallel stabilizing rods 36. In the process of adjusting the position of the movable plate 31 so that the movable rod 7 adjusts the position of the bending pulley 9, the movable plate 31 slides on the outer surface of the two stabilizing rods 36 at the same time. The stability of the moving process of the movable plate 31 is guaranteed by the two parallel stabilizing rods 36, thereby ensuring the stability of the steel bar bending process.

[0035] The working principle of the steel bar bending device of this embodiment is as follows: when bending the steel bar, the steel bar is placed between the two positioning plates 19 and on the surface of the two bending pulleys 9, and then the two threaded rods 16 are screwed at the same time, so that the threaded rod 16 drives the second connecting seat 17 to rotate and move through the limit of the fixed seat 21, so that the second connecting seat 17 is fitted into the inside of the first connecting seat 15 and rotates. As the threaded rod 16 moves, the first connecting seat 15 is pushed to move, so that the first connecting seat 15 drives the positioning plates 19 to move. By adjusting the distance between the two positioning plates 19, the steel bar is limited so that the steel bar is located on the surface of the bending pulley 9 and between the two positioning plates 19. Then the motor 27 is connected to the power supply so that the motor 27 The output shaft drives the screw 22 to rotate between the two mounting seats 26, so that the two first movable seats 24 threadedly connected to the outer surface of the screw 22 move relative to each other, so that the two first movable seats 24 respectively drive the lower ends of the scissors frame 33 hinged on the surface to move relative to each other, so that the upper ends of the scissors frame 33 respectively drive the hinged second movable seats 23 to slide on the outer surface of the guide rod 25, and the folding change of the scissors frame 33 drives the movable plate 31 to move, so that the movable plate 31 drives the movable rod 7 on the surface to move, and the position of the two bending pulleys 9 is adjusted according to the curvature of the bend, and then the solenoid valve of the air guide pipe connected to the inside of the cylinder 18 is opened, so that the movable end of the cylinder 18 drives the bending part 6 to move, so that the bending part 6 bends the steel bar as the movable end of the cylinder 18 moves.

[0036] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise expressly defined, the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are intended only to facilitate the description of the present invention and simplify the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention. The terms "connect," "install," and "fix" should be understood in a broad sense. For example, "connection" can mean a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0037] In the description of this utility model, the terms "one embodiment," "some embodiments," "specific embodiments," etc., mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the utility model. In this utility model, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A steel bar bending device, comprising a processing table (1), characterized in that: The processing table (1) is fixedly mounted on the upper side wall of the support table (2); a bending seat (5) is fixedly mounted on the upper side wall of the processing table (1); a bending groove (11) is provided on the upper side wall of the bending seat (5); a top plate (4) is fixedly mounted on the upper side wall of the processing table (1) through a symmetrical bracket (3); a cylinder (18) is fixedly mounted on the upper side wall of the top plate (4) through a fixing frame (20); a bending member (6) is fixedly mounted on the movable end of the cylinder (18); the movable end of the cylinder (18) passes through the inner cavity of the top plate (4) and extends to the outside; A positioning mechanism is symmetrically provided on the upper side wall, and a movable plate (31) is slidably connected to the inner side wall of the support platform (2). One end of a movable rod (7) is symmetrically fixedly installed on the upper side wall of the movable plate (31), and a support seat (8) is fixedly installed on the other end of the movable rod (7). The inner cavity of the support seat (8) is movably connected to a bending pulley (9) through a central axis (10). The movable rod (7) sequentially passes through the side wall of the support platform (2) and the inner cavity of the processing table (1) and extends to the outside. The inner cavity of the support platform (2) is provided with a driving mechanism for pushing the movable plate (31).

2. A steel bar bending device according to claim 1, characterized in that: The positioning mechanism includes two positioning plates (19), the two positioning plates (19) are symmetrically slidably connected to the upper side wall of the processing table (1), the side wall of the positioning plate (19) is fixedly installed with a first connecting seat (15), the first connecting seat (15) is rotatably connected to the outer side wall of the second connecting seat (17), the side wall of the second connecting seat (17) is fixedly installed with a threaded rod (16), the outer side wall of the threaded rod (16) is threadedly connected to a fixed seat (21), and the two fixed seats (21) are symmetrically fixedly installed in the inner cavities of the two brackets (3).

3. A steel bar bending device according to claim 2, characterized in that: The inner wall of the first connecting seat (15) is uniformly provided with a plurality of movable grooves (30), and the outer wall of the second connecting seat (17) is uniformly provided with a sliding groove (28). Balls (29) are uniformly embedded and installed in the inner cavities of the plurality of movable grooves (30) and the sliding grooves (28).

4. A steel bar bending device according to claim 3, characterized in that: A slider (34) is embedded in the inner cavity of the positioning plate (19), and the slider (34) is slidably connected to the outer wall of the slide rod (13). The two ends of the slide rod (13) are fixedly mounted on the upper side wall of the processing table (1) through symmetrical mounting plates (14).

5. A steel bar bending device according to claim 4, characterized in that: The driving mechanism includes a screw (22), two ends of the screw (22) are symmetrically connected to the mounting seats (26) for rotation, the two mounting seats (26) are symmetrically fixedly mounted on the inner side wall of the support platform (2), the outer side wall of the screw (22) is symmetrically threadedly connected to the first movable seat (24), the upper side walls of the two first movable seats (24) are respectively symmetrically connected to the two ends of the scissors frame (33), the other two ends of the scissors frame (33) are respectively symmetrically connected to the second movable seat (23), the two second movable seats (23) are symmetrically connected to the outer side wall of the guide rod (25), the guide rod (25) is fixedly mounted on the lower side wall of the movable plate (31), the inner side wall of the support platform (2) is fixedly mounted with a motor (27), and the output shaft of the motor (27) is fixedly connected to one end of the screw (22).

6. A steel bar bending device according to claim 1, characterized in that: Stabilizing rods (36) are symmetrically fixedly mounted on the inner sidewalls of the support platform (2), and the movable plate (31) is slidably connected to the outer sidewalls of the two stabilizing rods (36).

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