Traveling mechanism of steel bar bending device

Abstract

The utility model discloses a walking mechanism of a steel bar bending device, which belongs to the technical field of steel bar bending devices, and comprises a base, a frame body is fixedly mounted at the top of the base, two groups of bending structures are arranged on the frame body, two supporting legs are fixedly mounted at the bottom of the base, and walking structures are arranged on the two supporting legs. A first servo motor is fixedly installed in the base, a worm is fixedly installed at the output end of the first servo motor, and the bending frame makes contact with a fixed steel bar through the action of the hydraulic cylinder to press the steel bar downwards, so that bending operation on the steel bar is achieved; and meanwhile, two arranged second electric telescopic rods synchronously operate to enable a sliding plate to drive a supporting frame to transversely move, so that the bending frames can be conveniently detached and replaced from the interior of the fixing base, an operator can select different bending frames to be combined according to the requirements for the specification and the bending angle of the reinforcing steel bar, and the working efficiency is improved. The device can flexibly meet various steel bar machining requirements.

Description

Technical Field

[0001] This utility model relates to the field of rebar bending device technology, and more specifically, to a rebar bending device traveling mechanism. Background Technology

[0002] Early rebar bending devices often used simple roller structures for their walking mechanisms. These typically involved mounting several fixed rollers at the bottom of the device, which was then moved manually or by a simple electric motor.

[0003] Chinese Patent Publication No. 202120461744.9 discloses a walking mechanism for a rebar bending machine, including a frame mechanism and a limiting mechanism. A bending mechanism is rotatably connected to the top front end of the frame mechanism. The bending mechanism includes a bending rod and a bending gear, with a sleeve rotatably connected to the outer end of the bending rod. The moving frame can move back and forth, adjusting the required bending position of the rebar and avoiding the problem of needing multiple manual adjustments during traditional rebar bending.

[0004] However, the above-mentioned patent achieves the bending operation of steel bars by using a bending rod after improvement. However, the bending angle of the fixedly connected bending rod is relatively limited when bending steel bars. Therefore, a walking mechanism for a steel bar bending device is proposed to address the above problems. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a walking mechanism for a rebar bending device. Two hydraulic cylinders are used to bring the bending frame into contact with the fixed rebar and press it down, thus achieving the bending operation. Simultaneously, two second electric telescopic rods operate synchronously, causing the sliding plate to move the support frame laterally, facilitating the removal and replacement of the bending frame from the fixed base. Depending on the specifications of the rebar and the required bending angle, the operator can select different bending frames for combination. By connecting bending frames with different radii of curvature, different bending radius requirements can be accommodated; or by connecting bending frames with different angles, diverse bending angles can be achieved, allowing the device to flexibly meet various rebar processing needs.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A walking mechanism for a rebar bending device includes a base, a frame fixedly mounted on the top of the base, two sets of bending structures on the frame, two support legs fixedly mounted on the bottom of the base, each support leg having a walking structure, a first servo motor fixedly mounted inside the base, a worm gear fixedly mounted at the output end of the first servo motor, two worm wheels meshing with the outer side of the worm gear, a bidirectional lead screw inside each of the two worm wheels, the two bidirectional lead screws passing through and fixedly connected to the two worm wheels, the worm gear, the two worm wheels, and the bidirectional lead screws all being rotatably connected to the base, two sliders threadedly connected to the outer side of each of the two bidirectional lead screws, rotating blocks slidably connected to the top of each of the sliders, and fixed blocks rotatably connected to the top of each of the rotating blocks via a rotating shaft, each of the fixed blocks having a fixing structure.

[0008] Furthermore, the bending structure includes a hydraulic cylinder that penetrates the frame and is fixedly connected to it. A fixed base is fixedly installed at the output end of the hydraulic cylinder. A slide plate and a support frame are slidably connected to one side of the fixed base. The slide plate and the support frame are fixedly connected. Two second electric telescopic rods are fixedly installed inside the fixed base. The output ends of the two second electric telescopic rods are fixedly connected to the slide plate. A bending frame is slidably connected inside the fixed base. The bending frame is slidably connected to the support frame.

[0009] Furthermore, the fixing structure includes a pressure plate, and limit blocks are fixedly installed on both sides of the pressure plate. Both limit blocks are inserted into the interior of the fixing block and slidably connected thereto. A first threaded rod and a first guide rod are respectively provided inside the fixing block and on the corresponding sides of the pressure plate. The first threaded rod is inserted into the interior of the fixing block and rotatably connected thereto, and the first guide rod is fixedly connected to the fixing block. A second servo motor is fixedly installed inside the fixing block, and the output end of the second servo motor is fixedly connected to the first threaded rod.

[0010] Furthermore, each of the aforementioned rotating blocks is provided with two first electric telescopic rods inside. The first electric telescopic rods pass through the rotating blocks and are fixedly connected to them. Each of the aforementioned first electric telescopic rods is provided with a rotating plate above it. Each of the aforementioned rotating plates has an auxiliary block rotatably connected to its corresponding sides via a rotating shaft. The output end of each of the first electric telescopic rods is fixedly connected to one of the auxiliary blocks. The other auxiliary block is inserted into the interior of a fixed block and is slidably connected to it. Each of the aforementioned fixed blocks has two second guide rods fixedly installed inside it. The second guide rods pass through another auxiliary block and are slidably connected to it.

[0011] Furthermore, each of the aforementioned sliders has a slide rod fixedly installed inside it. The slide rod passes through the rotating block and is slidably connected to it. Each of the aforementioned sliders has a number of return springs installed inside it and on the side where two corresponding rotating blocks are close to each other. Both ends of the number of return springs are fixedly connected to the slider and the rotating block, respectively.

[0012] Furthermore, the walking structure consists of a third servo motor, a second threaded rod, a base plate, and two moving wheels. A controller is embedded on one side of the base, and the controller is electrically connected to the first servo motor, the first electric telescopic rod, the second servo motor, the second electric telescopic rod, and the third servo motor.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] This solution uses a hydraulic cylinder to bring the bending frame into contact with the fixed reinforcing bar and press it down, thus achieving the bending operation of the reinforcing bar. At the same time, two second electric telescopic rods operate synchronously to move the slide plate and the support frame laterally, which facilitates the removal and replacement of the bending frame from the fixed seat. Depending on the specifications of the reinforcing bar and the required bending angle, the operator can choose different bending frames to combine, so that the device can flexibly meet various reinforcing bar processing needs. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a partial structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the bending structure of this utility model;

[0018] Figure 4 This is a side view sectional structural diagram of the present invention;

[0019] Figure 5 This is a frontal cross-sectional view of the present invention.

[0020] The following are the labels in the diagram: 1. Base; 2. Support leg; 3. First servo motor; 4. Worm gear; 5. Worm wheel; 6. Two-way lead screw; 7. Slider; 8. Rotating block; 9. Fixed block; 10. First electric telescopic rod; 11. Rotating plate; 12. Auxiliary block; 13. Pressure plate; 14. Limiting block; 15. Second servo motor; 16. First threaded rod; 17. Slide rod; 18. Return spring; 19. Frame; 20. Hydraulic cylinder; 21. Fixed seat; 22. Slide plate; 23. Support frame; 24. Second electric telescopic rod; 25. Bending frame; 26. Controller. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. Example

[0022] Please see Figure 1-3 A walking mechanism for a rebar bending device includes a base 1, a frame 19 fixedly mounted on the top of the base 1, two sets of bending structures on the frame 19, two support legs 2 fixedly mounted on the bottom of the base 1, each support leg 2 having a walking structure, a first servo motor 3 fixedly mounted inside the base 1, a worm gear 4 fixedly mounted at the output end of the first servo motor 3, two worm wheels 5 meshing on the outer side of the worm gear 4, a bidirectional lead screw 6 inside each of the two worm wheels 5, the two bidirectional lead screws 6 passing through and fixedly connected to the two worm wheels 5 respectively, the worm gear 4, the two worm wheels 5 and the bidirectional lead screws 6 all being rotatably connected to the base 1, two sliders 7 threadedly connected to the outer side of each of the two bidirectional lead screws 6, rotating blocks 8 slidably connected to the top of each of the sliders 7, and fixed blocks 9 rotatably connected to the top of each of the rotating blocks 8 via a rotating shaft, each of the fixed blocks 9 having a fixing structure.

[0023] The bending structure includes a hydraulic cylinder 20, which passes through and is fixedly connected to the frame 19. A fixed base 21 is fixedly installed at the output end of the hydraulic cylinder 20. A slide plate 22 and a support frame 23 are slidably connected to one side of the fixed base 21. The slide plate 22 and the support frame 23 are fixedly connected. Two second electric telescopic rods 24 are fixedly installed inside the fixed base 21. The output ends of the two second electric telescopic rods 24 are fixedly connected to the slide plate 22. A bending frame 25 is slidably connected inside the fixed base 21. The bending frame 25 is slidably connected to the support frame 23.

[0024] Two hydraulic cylinders 20 are used to bring the bending frame 25 into contact with the fixed steel bar and press it down, thus bending the steel bar. At the same time, two second electric telescopic rods 24 operate synchronously to move the slide plate 22 and the support frame 23 laterally, which facilitates the removal and replacement of the bending frame 25 from the fixed base 21. Depending on the specifications of the steel bar and the required bending angle, the operator can select different bending frames 25 to combine. By connecting bending frames 25 with different radii of curvature, different bending radius requirements can be met, or bending frames 25 with different angles can be connected to achieve diverse bending angles, so that the device can flexibly meet various steel bar processing needs.

[0025] The fixing structure includes a pressure plate 13. Limiting blocks 14 are fixedly installed on both sides of the pressure plate 13. Both limiting blocks 14 are inserted into the interior of the fixing block 9 and slidably connected thereto. A first threaded rod 16 and a first guide rod are respectively provided inside the fixing block 9 and on the corresponding sides of the pressure plate 13. The first threaded rod 16 is inserted into the interior of the fixing block 9 and rotatably connected thereto. The first guide rod is fixedly connected to the fixing block 9. A second servo motor 15 is fixedly installed inside the fixing block 9. The output end of the second servo motor 15 is fixedly connected to the first threaded rod 16.

[0026] Each of the rotating blocks 8 has two first electric telescopic rods 10 inside. The first electric telescopic rods 10 pass through the rotating block 8 and are fixedly connected to it. Each of the first electric telescopic rods 10 has a rotating plate 11 above it. Each of the rotating plates 11 has an auxiliary block 12 rotatably connected to its corresponding sides via a rotating shaft. The output end of the first electric telescopic rod 10 is fixedly connected to one of the auxiliary blocks 12. The other auxiliary block 12 is inserted into the interior of the fixed block 9 and is slidably connected to it. Each of the fixed blocks 9 has two second guide rods fixedly installed inside it. The second guide rods pass through the other auxiliary block 12 and are slidably connected to it.

[0027] The distance between the two corresponding sliders 7 is adjusted by the first servo motor 3 to clamp and fix the reinforcing bar at a suitable position. Two sliders 7 are set on the outside of the two bidirectional screw rods 6 to facilitate the simultaneous processing of multiple reinforcing bars. The reinforcing bar to be processed is placed on the top of the fixing block 9, and the pressure plate 13 on the outside of the first threaded rod 16 is moved longitudinally by the second servo motor 15, so that the two sides of the reinforcing bar are fixed by the fixing block 9 and the pressure plate 13. At the same time, rubber pads are fixedly installed on the side of the fixing block 9 and the pressure plate 13 that are close to each other to increase the friction between the reinforcing bar and the pressure plate. When bending the reinforcing bar, the first servo motor 3 and the first electric telescopic rod 10 are operated. When driven by the first servo motor 3, the two worm wheels 5 on the outside of the worm 4 rotate synchronously and in the same direction, so that the two corresponding sliders 7 on the outside of the two bidirectional screw rods 6 move closer to each other. At the same time, the first electric telescopic rod 10 operates and cooperates with the rotating plate 11 to make the fixing block 9 rotate with the bending of the reinforcing bar.

[0028] Please see Figure 4-5 Each of the sliders 7 has a slide rod 17 fixedly installed inside it. The slide rod 17 passes through the rotating block 8 and is slidably connected to it. Each of the sliders 7 has a number of return springs 18 inside it and located on the side of the two corresponding rotating blocks 8 that are close to each other. Both ends of the return springs 18 are fixedly connected to the sliders 7 and the rotating blocks 8 respectively.

[0029] The walking structure consists of a third servo motor, a second threaded rod, a base plate, and two moving wheels. A controller 26 is embedded on one side of the base 1. The controller 26 is electrically connected to the first servo motor 3, the first electric telescopic rod 10, the second servo motor 15, the second electric telescopic rod 24, and the third servo motor.

[0030] Meanwhile, the rotating block 8 slides inside the slider 7, reducing the impact of shape changes during rebar bending on the fixing structure. The slider 7 is reset by the reset spring 18. The walking structure allows the support leg 2 to contact the ground, stabilizing the rebar bending operation. The third servo motor drives the base plate on the outside of the second threaded rod to move longitudinally, allowing several wheels to contact the ground for easy movement. The device also has heat dissipation holes that cooperate with the motor.

[0031] Working principle: The distance between the two corresponding sliders 7 is adjusted by the first servo motor 3 to clamp and fix the steel bar at a suitable position. The steel bar to be processed is placed on the top of the fixing block 9, and the pressure plate 13 on the outside of the first threaded rod 16 is moved longitudinally by the second servo motor 15. The steel bar is fixed on both sides by the fixing block 9 and the pressure plate 13.

[0032] The bending frame 25 is brought into contact with the fixed steel bar by the action of two hydraulic cylinders 20, and is pressed down to bend the steel bar. During the bending operation, the first servo motor 3 and the first electric telescopic rod 10 are operated. When driven by the first servo motor 3, the two worm wheels 5 on the outside of the worm 4 rotate synchronously in the same direction, thereby causing the two corresponding sliders 7 on the outside of the two bidirectional lead screws 6 to move closer to each other. At the same time, the first electric telescopic rod 10 operates and cooperates with the rotating plate 11 to make the fixed block 9 rotate with the bending of the steel bar.

[0033] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A walking mechanism of a reinforcing bar bending apparatus comprising a base (1), characterized in that: The top of the base (1) is fixedly installed with a frame body (19), the frame body (19) is provided with two groups of bending structures, the bottom of the base (1) is fixedly installed with two supporting legs (2), the two supporting legs (2) are both provided with walking structures, the inside of the base (1) is fixedly installed with a first servo motor (3), the output end of the first servo motor (3) is fixedly installed with a worm (4), the outer side of the worm (4) is engaged with two worm gears (5), the inside of the two worm gears (5) is both provided with a bidirectional screw rod (6), the two bidirectional screw rods (6) respectively penetrate through the two worm gears (5) and are fixedly connected therewith, the worm (4), the two worm gears (5) and the bidirectional screw rod (6) are all rotationally connected with the base (1), the outer side of the two bidirectional screw rods (6) is all threadedly connected with two sliding blocks (7), the top of the plurality of sliding blocks (7) is all slidingly connected with a rotating block (8), the top of the plurality of rotating blocks (8) is all rotationally connected with a fixed block (9) through a rotating shaft, the plurality of fixed blocks (9) are all provided with fixed structures.

2. A walking mechanism for a steel bar bending apparatus according to claim 1, characterized in that: The bending structure comprises a hydraulic cylinder (20), the hydraulic cylinder (20) penetrates through the frame body (19) and is fixedly connected therewith, the output end of the hydraulic cylinder (20) is fixedly installed with a fixed seat (21), one side of the fixed seat (21) is slidingly connected with a sliding plate (22) and a supporting frame (23), the sliding plate (22) and the supporting frame (23) are fixedly connected, the inside of the fixed seat (21) is fixedly installed with two second electric telescopic rods (24), the output end of the two second electric telescopic rods (24) is all fixedly connected with the sliding plate (22), the inside of the fixed seat (21) is slidingly connected with a bending frame (25), the bending frame (25) is slidingly connected with the supporting frame (23).

3. A walking mechanism for a steel bar bending apparatus according to claim 1, characterized in that: The fixed structure comprises a pressing plate (13), the opposite sides of the pressing plate (13) are both fixedly installed with a limiting block (14), the two limiting blocks (14) are all inserted into the inside of the fixed block (9) and are slidingly connected therewith, the inside of the fixed block (9) and located at the opposite sides of the pressing plate (13) are respectively provided with a first threaded rod (16) and a first guide rod, the first threaded rod (16) is inserted into the inside of the fixed block (9) and is rotationally connected therewith, and the first guide rod is fixedly connected with the fixed block (9), the inside of the fixed block (9) is fixedly installed with a second servo motor (15), the output end of the second servo motor (15) is fixedly connected with the first threaded rod (16).

4. A walking mechanism for a steel bar bending apparatus according to claim 1, characterized in that: The interiors of the plurality of rotating blocks (8) are each provided with two first electric telescopic rods (10) penetrating through and fixedly connected with the rotating blocks (8), the upper portions of the plurality of first electric telescopic rods (10) are each provided with a rotating plate (11), the opposite sides of the plurality of rotating plates (11) are each rotationally connected with an auxiliary block (12) through a rotating shaft, the output end of the first electric telescopic rod (10) is fixedly connected with one of the auxiliary blocks (12), the other auxiliary block (12) is inserted into the interior of the fixed block (9) and is in sliding connection therewith, the interiors of the plurality of fixed blocks (9) are each fixedly installed with two second guide rods penetrating through and in sliding connection with the other auxiliary block (12).

5. A walking mechanism for a rebar bending apparatus as defined in claim 1, wherein: The interiors of the plurality of sliding blocks (7) are each fixedly installed with a sliding rod (17) penetrating through and in sliding connection with the rotating block (8), the interiors of the plurality of sliding blocks (7) and located on the side where the corresponding two rotating blocks (8) are close to each other are each provided with a plurality of return springs (18), and the two ends of the plurality of return springs (18) are respectively fixedly connected with the sliding block (7) and the rotating block (8).

6. A walking mechanism for a rebar bending apparatus as defined in claim 1, wherein: The walking structure is composed of a third servo motor, a second threaded rod, a bottom plate and two moving wheels, one side of the base (1) is inlaid with a controller (26), and the controller (26) is in electric connection with the first servo motor (3), the first electric telescopic rod (10), the second servo motor (15), the second electric telescopic rod (24) and the third servo motor.

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