Steel pipe bending machine

Abstract

The utility model belongs to the technical field of steel pipe bending, and particularly relates to a steel pipe bending machine which comprises a workbench. Supporting columns are welded to the four corners of the bottom of the workbench, a first motor is installed at the center of the bottom of the workbench, the output end of the first motor is connected with a rotating shaft, the rotating shaft penetrates through the workbench, the rotating shaft is sleeved with a first roller, and the top end of the rotating shaft is sleeved with a swing rod. The other end of the swing rod is arranged at the top end of a movable rod in a sleeving mode, an arc-shaped groove is formed in the workbench, the movable rod is installed in the arc-shaped groove in a sliding mode, a first electrode plate is fixedly connected to the circumferential face of the bottom end of the movable rod, and angle marking lines are arranged on the circumferential side of the arc-shaped groove; and when the steel pipe is bent, in order to bend the steel pipe at an accurate angle, the triggering mechanism is arranged, so that the steel pipe can be bent at the accurate angle, and the accuracy of the bending angle of the steel pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe bending, in particular to a steel pipe bending machine. Background Art

[0002] A steel pipe is a steel material with a hollow cross-section and a length much larger than its diameter or circumference. A steel pipe bending machine is a machine for bending steel pipes. During the steel pipe processing process, it is often necessary to bend the steel pipe, so a steel pipe bending machine is needed.

[0003] Existing steel pipe bending machines generally consist of a workbench, positioning rollers and moving rollers arranged on the workbench, a clamping mechanism and a driving assembly. When bending the steel pipe, the steel bar is placed on the workbench and passes through the clamping mechanism and the positioning rollers and the moving rollers. Then the driving assembly is started so that the moving roller drives one end of the steel bar to move, and the steel bar is bent under the restriction of the positioning roller, thereby realizing the bending of the steel bar.

[0004] When existing steel pipe bending machines bend steel pipes, the bending angle of the steel pipes is mostly determined based on the operator's experience, which makes it difficult to bend the steel pipes at an accurate angle, and the steel pipes cannot be bent at an accurate angle; and before the steel pipes are bent, the steel pipes cannot be repaired and straightened, and the straight shape of the steel pipes cannot be guaranteed, thereby reducing the processing quality of the steel pipes. Therefore, a steel pipe bending machine is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the problems raised by the above-mentioned background technology, the utility model proposes a steel pipe bending machine.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a steel pipe bending machine described in the utility model comprises a workbench; support columns are welded at the four corners of the bottom of the workbench, a first motor is installed at the bottom center of the workbench, the output end of the first motor is connected to a rotating shaft, and the rotating shaft is arranged through the workbench, a first roller is sleeved on the rotating shaft, a swing rod is sleeved on the top end of the rotating shaft, and the other end of the swing rod is sleeved on the top end of a movable rod, an arc groove is opened on the workbench, a movable rod is slidably installed in the arc groove, a first electrode plate is fixedly connected to the circumferential surface of the bottom end of the movable rod, and the first electrode plate is arranged in the arc groove, a second roller is sleeved on the movable rod, and the first roller and the second roller are both arranged below the swing rod, an angle marking line is arranged on the circumferential side of the arc groove, When the steel pipe is bent, in order to be able to bend the steel pipe at an accurate angle, the screw is moved to make the screw move in the thread groove, and then the second electrode plate is also moved accordingly, and the angle mark is aligned until the second electrode plate moves to a suitable angle, and then the screw is fixed by the locking cap, that is, the second electrode plate is fixed, and then the first motor is acted upon, and with the cooperation of the swing rod, the rotating shaft drives the movable rod to move along the arc groove, and then the second roller drives one end of the steel pipe to move, so that the steel pipe can be bent. When the first electrode plate at the bottom end of the movable rod contacts the second electrode plate, the warning light sounds an alarm, so as to promptly remind the operator to turn off the first motor to end the bending of the steel pipe. By setting a trigger mechanism, the steel pipe can be bent at an accurate angle, thereby improving the accuracy of the bending angle of the steel pipe.

[0007] Preferably, a threaded groove is provided at the bottom of the arc-shaped groove, a screw is inserted in the threaded groove, a second electrode plate is fixedly connected to the top end of the screw, and the second electrode plate is arranged in the arc-shaped groove, a locking cap is sleeved on the screw, and the locking cap is arranged on the bottom side of the workbench, and when the device is used, the position of the second electrode plate can be adjusted according to the angle at which the steel pipe is to be bent through the coordinated cooperation of the screw, the second electrode plate and the locking cap.

[0008] Preferably, a warning light is installed at a top corner of the workbench, and the warning light, the first electrode plate and the second electrode plate are electrically connected. When using the device, by setting the warning light, the operator can be reminded in time to turn off the first motor, thereby ending the bending process of the steel pipe.

[0009] Preferably, the workbench is provided with an installation groove, in which a plurality of lower repair rollers are rotatably installed by a rotating shaft, two vertical poles are fixedly connected on both sides of the top port of the installation groove, and a mounting frame is fixedly connected to the two vertical poles, and a plurality of upper repair wheels are rotatably installed between the two mounting frames by a rotating shaft, and the plurality of rotating shafts are connected by a conveyor belt for transmission, and the conveyor belt is arranged in the mounting frame. Before bending the steel pipe, in order to ensure the straight shape of the steel pipe to be bent, when straightening the steel pipe, the steel pipe to be bent is passed between the upper repair wheel and the lower repair roller, and under the action of the second motor, the plurality of upper repair wheels are rotated in cooperation with the conveyor belt, and in cooperation with the lower repair roller, the steel pipe can be transported and the bent steel pipe can be rolled, squeezed and straightened at the same time, thereby ensuring the straight shape of the steel pipe and improving the subsequent processing quality of the steel pipe.

[0010] Preferably, a second motor is installed on one of the mounting frames, and an output end of the second motor is connected to one end of one of the rotating shafts. When the steel pipe is straightened, the second motor is provided to serve as a power source for the straightening operation.

[0011] The utility model is beneficial in that:

[0012] 1. When the utility model is bending the steel pipe, in order to be able to perform accurate angle bending processing on the steel pipe, the screw is moved to drive the second electrode plate to move along the thread groove, and the angle mark line is marked until the second electrode plate moves to a suitable angle, and then the screw is fixed by the locking cap, that is, the second electrode plate is fixed, and then the first motor is acted on, and under the cooperation of the swing rod, the rotating shaft drives the movable rod to move along the arc groove, and then the second roller drives one end of the steel pipe to move, so that the steel pipe can be bent. When the first electrode plate at the bottom end of the movable rod contacts the second electrode plate, the warning light sounds an alarm, so that the operator can be reminded in time to turn off the first motor to end the bending processing of the steel pipe. By setting a trigger mechanism, the steel pipe can be bent at an accurate angle, thereby improving the accuracy of the bending angle of the steel pipe;

[0013] 2. Before the utility model bends the steel pipe, in order to ensure the straight shape of the steel pipe to be bent, when straightening the steel pipe, the steel pipe to be bent is passed between the upper repair wheel and the lower repair roller. Under the action of the second motor, with the cooperation of the conveyor belt, multiple upper repair wheels are rotated. With the cooperation of the lower repair roller, the steel pipe can be transported while the bent steel pipe can be rolled, squeezed and straightened, thereby ensuring the straight shape of the steel pipe and improving the subsequent processing quality of the steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure from a top view;

[0016] Figure 2 It is a schematic diagram of the overall three-dimensional structure when viewed from above;

[0017] Figure 3 It is a schematic diagram of the internal three-dimensional structure of the arc groove;

[0018] Figure 4 It is a schematic diagram of a partial top-down three-dimensional structure;

[0019] Figure 5 This is a schematic diagram of the disassembled three-dimensional structure of the upper repair wheel assembly.

[0020] In the figure: 1. workbench; 2. support column; 3. first motor; 4. rotating shaft; 5. first roller; 6. arc groove; 7. movable rod; 8. second roller; 9. swing rod; 10. angle marking; 11. first electrode plate; 12. threaded groove; 13. screw; 14. second electrode plate; 15. locking cap; 16. warning light; 17. mounting groove; 18. lower repair roller; 19. vertical pole; 20. mounting frame; 21. upper repair wheel; 22. conveyor belt; 23. second motor. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3As shown, a steel pipe bending machine includes a workbench 1; support columns 2 are welded at the four corners of the bottom of the workbench 1, a first motor 3 is installed at the center of the bottom of the workbench 1, the output end of the first motor 3 is connected to a rotating shaft 4, and the rotating shaft 4 is arranged through the workbench 1, a first roller 5 is sleeved on the rotating shaft 4, a swing rod 9 is sleeved on the top end of the rotating shaft 4, and the other end of the swing rod 9 is sleeved on the top end of a movable rod 7, an arc groove 6 is opened on the workbench 1, and a movable rod 7 is slidably installed in the arc groove 6, and a bottom circumferential surface of the movable rod 7 is fixedly connected to A first electrode plate 11 is provided, and the first electrode plate 11 is arranged in the arc groove 6. A second roller 8 is sleeved on the movable rod 7, and the first roller 5 and the second roller 8 are both arranged below the swing rod 9. An angle mark 10 is arranged on the circumference of the arc groove 6. A thread groove 12 is provided at the bottom of the arc groove 6. A screw 13 is inserted in the thread groove 12. A second electrode plate 14 is fixedly connected to the top of the screw 13. The second electrode plate 14 is arranged in the arc groove 6. A locking cap 15 is sleeved on the screw 13, and the locking cap 15 is arranged on the bottom side of the workbench 1. The workbench 1 A warning light 16 is installed at one corner of the top of the steel pipe, and the warning light 16, the first electrode plate 11 and the second electrode plate 14 are electrically connected; when bending the steel pipe, in order to be able to bend the steel pipe at an accurate angle, move the screw 13, so that the screw 13 moves in the thread groove 12, and then the second electrode plate 14 moves accordingly, and the angle mark 10 is marked until the second electrode plate 14 moves to a suitable angle, and the screw 13 is fixed by the locking cap 15, that is, the second electrode plate 14 is fixed, and then the first electrode is started. The motor 3, in cooperation with the swing rod 9, causes the rotating shaft 4 to drive the movable rod 7 to move along the arc groove 6, and then causes the second roller 8 to drive one end of the steel pipe to move, so that the steel pipe can be bent. When the first electrode plate 11 at the bottom end of the movable rod 7 contacts the second electrode plate 14, the warning light 16 sounds an alarm, so as to promptly remind the operator to turn off the first motor 3 to end the bending of the steel pipe. By setting a trigger mechanism, the steel pipe can be bent at an accurate angle, thereby improving the accuracy of the bending angle of the steel pipe.

[0023] See also Figure 4-5As shown, the workbench 1 is provided with a mounting groove 17, in which a plurality of lower repair rollers 18 are rotatably mounted via a rotating shaft, two vertical poles 19 are fixedly connected to both sides of the top port of the mounting groove 17, a mounting frame 20 is fixedly connected to the two vertical poles 19, a plurality of upper repair wheels 21 are rotatably mounted between the two mounting frames 20 via a rotating shaft, and the plurality of rotating shafts are connected to each other via a transmission belt 22, the transmission belt 22 is arranged in the mounting frame 20, a second motor 23 is installed on one mounting frame 20, and the output end of the second motor 23 is connected to one of the rotating shafts. One end of the rotating shaft is connected; before bending the steel pipe, in order to ensure the straight shape of the steel pipe to be bent, the steel pipe needs to be straightened. When straightening the steel pipe, the steel pipe to be bent is passed between the upper repair wheel 21 and the lower repair roller 18, and the second motor 23 is started. With the cooperation of the conveyor belt 22, multiple upper repair wheels 21 are rotated. With the cooperation of the lower repair roller 18, the steel pipe can be transported while the bent steel pipe can be rolled, squeezed and straightened, thereby ensuring the straight shape of the steel pipe and improving the subsequent processing quality of the steel pipe.

[0024] Working principle: When the existing steel pipe bending machine bends the steel pipe, the bending angle of the steel pipe is mostly judged according to the experience of the operator, so it is difficult to bend the steel pipe at an accurate angle, and the steel pipe cannot be bent at an accurate angle; and before the steel pipe is bent, the steel pipe to be bent cannot be repaired and straightened, so the straight shape of the steel pipe cannot be guaranteed, thereby reducing the processing quality of the steel pipe. Therefore, a steel pipe bending machine is proposed to solve the above problems; before bending the steel pipe, in order to To ensure the straight shape of the steel pipe to be bent, the steel pipe needs to be straightened. When straightening the steel pipe, the steel pipe to be bent is passed between the upper repair wheel 21 and the lower repair roller 18, and the second motor 23 is started. With the cooperation of the conveyor belt 22, the plurality of upper repair wheels 21 are rotated. With the cooperation of the lower repair roller 18, the steel pipe can be transported and the bent steel pipe can be rolled, squeezed and straightened, thereby ensuring the straight shape of the steel pipe and improving the subsequent processing quality of the steel pipe.

[0025] When bending the steel pipe, in order to be able to bend the steel pipe at an accurate angle, move the screw 13 so that the screw 13 moves in the thread groove 12, and then the second electrode plate 14 also moves accordingly, and the angle mark line 10 is aligned until the second electrode plate 14 moves to a suitable angle, and then the screw 13 is fixed by the locking cap 15, that is, the second electrode plate 14 is fixed, and then the first motor 3 is started, and with the cooperation of the swing rod 9, the rotating shaft 4 drives the movable rod 7 to move along the arc groove 6, and then the second roller 8 drives one end of the steel pipe to move, so that the steel pipe can be bent. When the first electrode plate 11 at the bottom end of the movable rod 7 contacts the second electrode plate 14, the warning light 16 sounds an alarm, so that the operator can be reminded in time to turn off the first motor 3 to end the bending of the steel pipe. By setting a trigger mechanism, the steel pipe can be bent at an accurate angle, thereby improving the accuracy of the bending angle of the steel pipe.

[0026] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0027] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A steel pipe bending machine, characterized in that: The invention comprises a workbench (1); support columns (2) are welded at the four corners of the bottom of the workbench (1); a first motor (3) is installed at the center of the bottom of the workbench (1); the output end of the first motor (3) is connected to a rotating shaft (4), and the rotating shaft (4) passes through the workbench (1); a first roller (5) is sleeved on the rotating shaft (4); a swing rod (9) is sleeved on the top end of the rotating shaft (4), and the other end of the swing rod (9) is sleeved on the top of a movable rod (7). The workbench (1) is provided with an arc groove (6), a movable rod (7) is slidably installed in the arc groove (6), a first electrode plate (11) is fixedly connected to the circumferential surface of the bottom end of the movable rod (7), and the first electrode plate (11) is arranged in the arc groove (6), a second roller (8) is sleeved on the movable rod (7), and the first roller (5) and the second roller (8) are both arranged below the swing rod (9), and an angle mark (10) is arranged on the circumferential side of the arc groove (6).

2. A steel pipe bending machine according to claim 1, characterized in that: A thread groove (12) is provided at the bottom of the arc groove (6), a screw (13) is inserted into the thread groove (12), a second electrode plate (14) is fixedly connected to the top end of the screw (13), and the second electrode plate (14) is arranged in the arc groove (6), a locking cap (15) is sleeved on the screw (13), and the locking cap (15) is arranged on the bottom side of the workbench (1).

3. A steel pipe bending machine according to claim 1, characterized in that: A warning light (16) is installed at a corner of the top of the workbench (1), and the warning light (16), the first electrode plate (11) and the second electrode plate (14) are electrically connected.

4. A steel pipe bending machine according to claim 1, characterized in that: The workbench (1) is provided with a mounting groove (17), in which a plurality of lower repair rollers (18) are rotatably mounted via a rotating shaft, and two vertical poles (19) are fixedly connected to both sides of the top end of the mounting groove (17), and the two vertical poles (19) are fixedly connected to a mounting frame (20).

5. A steel pipe bending machine according to claim 4, characterized in that: A plurality of upper repair wheels (21) are rotatably mounted between the two installation frames (20) via a rotating shaft, and the plurality of rotating shafts are transmission-connected via a conveyor belt (22), wherein the conveyor belt (22) is arranged inside the installation frame (20).

6. A steel pipe bending machine according to claim 4, characterized in that: A second motor (23) is mounted on one of the mounting frames (20), and an output end of the second motor (23) is connected to one end of one of the rotating shafts.

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