Metal pipe bending forming device

Abstract

The utility model discloses a metal pipe bending forming device, which belongs to the technical field of pipe processing and comprises a frame, a shaft lever is vertically and rotatably mounted in the middle of the top end of the frame, a plurality of groups of first rotating wheels are horizontally mounted on the shaft lever along the height direction, and a U-shaped frame is fixed between two ends of the shaft lever. And a driving mechanism for controlling the shaft rod and the [-shaped frame to rotate is arranged at the bottom of the rack. According to the pipe bending machine, the two sets of sliding rods are arranged at the front end of the sliding block in the sliding mode, the second rotating wheels matched with the first rotating wheels are rotationally installed at the ends of the sliding rods, and through the use of the hydraulic cylinder, the two sets of sliding rods can be controlled to move along with the sliding block at the same time to clamp and fix a metal pipe; the telescopic mechanism is used for controlling the insertion block to move downwards, the clamping state of the top pipe can be changed, then two sets of pipes with different curvatures are formed in the single pipe bending process, and practicability is higher.

Description

Technical Field

[0001] This utility model relates to a bending and forming device, and more particularly to a metal pipe bending and forming device, belonging to the field of pipe processing technology. Background Technology

[0002] Currently, in order to increase the bending rate when bending metal pipes, a metal pipe bending machine disclosed in patent application number 202420028242.0 is used, which has the function of bending multiple metal pipes at the same time.

[0003] The above-mentioned applications still have shortcomings:

[0004] During the pipe bending process, only pipes with a single curvature can be processed at a time, and it is not possible to process pipes with different curvatures at the same time. If the processing method is adopted separately, it is easy to cause a mismatch in quantity and waste of pipes.

[0005] To address this issue, a metal tube bending and forming device was designed. Utility Model Content

[0006] The main objective of this invention is to provide a metal pipe bending and forming device to solve the problems mentioned in the background art.

[0007] The objective of this utility model can be achieved by adopting the following technical solution:

[0008] A metal tube bending and forming device includes a frame, a shaft is vertically and rotatably mounted at the middle position of the top of the frame, multiple sets of first rotating wheels are horizontally mounted on the shaft along the height direction, a C-shaped frame is fixed between the two ends of the shaft, and a drive mechanism for controlling the rotation of the shaft and the C-shaped frame is provided at the bottom of the frame.

[0009] A hydraulic cylinder is installed at the end of the C-shaped frame. A slider is slidably arranged inside the C-shaped frame along the length direction. The output end of the hydraulic cylinder is connected to the slider. Multiple sets of sliding grooves corresponding to the first rotating wheel are opened at the end of the slider near the first rotating wheel. A sliding rod is slidably arranged inside each sliding groove. A tension spring is provided between the sliding rod and the inner end of the sliding groove. The two ends of the tension spring are fixedly connected to the end face of the sliding rod and the inner end face of the sliding groove, respectively. A second rotating wheel is rotatably installed at the outer end of each sliding rod. An insert block is vertically slidably arranged at the bottom of the slider. A bevel is provided on the side of the top of the insert block near the second rotating wheel. A slot that mates with the insert block is vertically opened on each sliding rod.

[0010] A telescopic mechanism for controlling the vertical movement of the insert block is provided below the U-shaped frame.

[0011] Preferably, the drive mechanism includes a motor, a turntable, and a limiting ring. The motor is mounted at the bottom of the frame, and the turntable is horizontally mounted at the output end of the motor. The limiting ring is fixed at the top inner part of the frame, the bottom of the turntable is attached to the top of the limiting ring, and the turntable and the limiting ring are rotatably connected. The bottom end of the shaft is fixedly connected to the turntable.

[0012] Preferably, a support rod is fixed to the side of the top of the turntable, and a first arc-shaped groove that mates with the support rod is opened on the top of the frame. The support rod slides inside the first arc-shaped groove, and the top of the support rod is fixedly connected to the C-shaped frame.

[0013] Preferably, the telescopic mechanism includes a screw, a threaded groove, a strip groove, and a rotating assembly. The screw is vertically rotatable at the bottom of the slider via a bearing. The bottom end of the insert block has a threaded groove that mates with the screw. The bottom of the shaped frame has a strip groove for the screw to pass through. The bottom of the screw has a rotating assembly.

[0014] Preferably, the rotating assembly includes a gear, a second arc-shaped groove, and a rack. The gear is fixed to the bottom end of the screw by bolts. The top of the frame has a second arc-shaped groove, and the inner side of the second arc-shaped groove has a rack that meshes with the gear.

[0015] Preferably, the surface of the bevel is coated with a wear-resistant coating, and the bevel angle is 45°.

[0016] Preferably, guide grooves are provided on both the upper and lower sides of the inside of the C-shaped frame along the length direction, and limit blocks are fixed at the top and bottom of the slider, and the limit blocks slide inside the guide grooves.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model has two sets of sliding rods slidably arranged at the front end of the slider, and the ends of the sliding rods are rotatably installed with a second rotating wheel that cooperates with the first rotating wheel. By using a hydraulic cylinder, the two sets of sliding rods can be controlled to move simultaneously with the slider to clamp and fix the metal pipe. In addition, during the bending process, the use of the telescopic mechanism controls the downward movement of the insert block, which can change the clamping state of the top pipe. Thus, in a single bending process, two sets of pipes with different curvatures are formed, which is more practical.

[0019] 2. This utility model uses a telescopic mechanism composed of a screw, threaded groove, gear, strip groove, second arc groove, and rack to automatically control the downward movement of the insert block during the bending process and release the positioning state of the top slide rod, making operation simple and convenient. Attached Figure Description

[0020] Figure 1 This is a front sectional view of the present invention;

[0021] Figure 2This is a cross-sectional view of the internal structure of the C-shaped frame during simultaneous bending of this utility model;

[0022] Figure 3 This is a cross-sectional view of the internal structure of the C-shaped frame during processing at different curvatures according to this utility model;

[0023] Figure 4 This is a top view of the frame of this utility model.

[0024] In the diagram: 1. Frame; 2. Shaft; 3. First roller; 4. C-shaped frame;

[0025] 5. Drive mechanism; 501. Motor; 502. Turntable; 503. Limit ring; 504. Support rod; 505. First arc groove;

[0026] 6. Hydraulic cylinder; 7. Slider; 8. Slide groove; 9. Slide rod; 10. Tension spring; 11. Second rotating wheel; 12. Slot; 13. Insert block; 14. Bevel;

[0027] 15. Telescopic mechanism; 1501. Screw; 1502. Threaded groove; 1503. Gear; 1504. Strip groove; 1505. Second arc groove; 1506. Rack. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0029] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0030] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Example 1

[0034] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment proposes a metal tube bending and forming device, including a frame 1, a shaft 2 is vertically and rotatably installed at the middle position of the top of the frame 1, multiple sets of first rotating wheels 3 are horizontally installed on the shaft 2 along the height direction, a C-shaped frame 4 is fixed between the two ends of the shaft 2, and a drive mechanism 5 for controlling the rotation of the shaft 2 and the C-shaped frame 4 is provided at the bottom of the frame 1.

[0035] A hydraulic cylinder 6 is installed at the end of the C-shaped frame 4. A slider 7 is slidably arranged inside the C-shaped frame 4 along the length direction. The output end of the hydraulic cylinder 6 is connected to the slider 7. Multiple sets of sliding grooves 8 corresponding to the first rotating wheel 3 are opened at the end of the slider 7 near the first rotating wheel 3. A sliding rod 9 is slidably arranged inside each sliding groove 8. A tension spring 10 is provided between the sliding rod 9 and the inner end of the sliding groove 8. The two ends of the tension spring 10 are fixedly connected to the end face of the sliding rod 9 and the inner end face of the sliding groove 8, respectively.

[0036] The tension spring 10 is a stainless steel helical tension spring with an elastic coefficient of 10-20 N / mm and a pre-tension length of 40-60 mm to ensure sufficient restoring force. One end of the tension spring 10 is connected to the end face of the slide rod 9 through a bolt fixing seat, and the other end is fixed to the inner end face of the slide groove 8 through a hook structure, which is convenient for disassembly and replacement.

[0037] The outer end of each slide rod 9 is rotatably mounted with a second rotating wheel 11. The bottom of the slider 7 is vertically slidably provided with an insert 13. The top of the insert 13 is provided with a bevel 14 on the side near the second rotating wheel 11. Each slide rod 9 is vertically provided with a slot 12 that mates with the insert 13.

[0038] Below the U-shaped frame 4 is a telescopic mechanism 15 that controls the vertical movement of the insertion block 13.

[0039] In use, initially, the insert block 13 is inserted into the slot 12 to fix the position of the slide rod 9, preventing it from sliding inside the groove 8. At this time, the tension spring 10 is in a stretched state. Then, multiple sets of pipes are horizontally passed between the first rotating wheel 3 and the second rotating wheel 11, with the pipes protruding a certain length for bending operations. The non-insertion ends of the pipes are then fixed using pipe clamps from the prior art, which will not be elaborated upon in this application. Then, the hydraulic cylinder 6 is activated to control the slide rod 9 on the slider 7 to slide simultaneously toward the first rotating wheel 3. The first rotating wheel 3 and the second rotating wheel 11 are used to squeeze and limit the pipes. After both ends of the pipes are completely limited, the drive is then used... Mechanism 5 controls the rotation of shaft 2 and frame 4. The second rotating wheel 11 on frame 4 rotates around the first rotating wheel 3, squeezing the protruding section of the pipe. The pipe bends against the outside of the first rotating wheel 3. During the bending process, the telescopic mechanism 15 controls the vertical downward movement of the insert 13, releasing the fixed state of the slide rod 9. The tension spring 10 controls the retraction of the slide rod 9. At this point, the first rotating wheel 3 and the second rotating wheel 11 no longer position the pipe. When frame 4 continues to rotate, the pipe will not be bent. Therefore, pipes with different curvatures can be produced in a single bending process. Alternatively, the telescopic mechanism 15 can be left uncontrolled during the bending process, allowing multiple sets of pipes with the same curvature to be produced simultaneously.

[0040] Example 2

[0041] The solution in Example 1 will be further described below with reference to its specific working method.

[0042] like Figure 1 As shown, in a preferred embodiment, based on the above method, the drive mechanism 5 further includes a motor 501, a turntable 502, and a limiting ring 503. The motor 501 is installed at the bottom of the frame 1, and the turntable 502 is horizontally installed at the output end of the motor 501. The limiting ring 503 is fixed to the inner top of the frame 1, and the bottom of the turntable 502 is attached to the top of the limiting ring 503. The turntable 502 and the limiting ring 503 are rotatably connected. The bottom end of the shaft 2 is fixedly connected to the turntable 502. When performing bending operations, the motor 501 is started to control the rotation of the turntable 502. The limiting ring 503 is used to limit the turntable 502 to ensure that the turntable 502 rotates horizontally. When the turntable 502 rotates, it drives the shaft 2 to rotate.

[0043] like Figure 1As shown, in a preferred embodiment, based on the above method, a support rod 504 is fixed to the side of the top of the turntable 502, and a first arc-shaped groove 505 that cooperates with the support rod 504 is opened on the top of the frame 1. The support rod 504 slides inside the first arc-shaped groove 505, and the top end of the support rod 504 is fixedly connected to the shaped frame 4. During the rotation of the turntable 502, the support rod 504 will drag the rotation of the shaped frame 4 and stabilize and limit the shaped frame 4.

[0044] like Figure 2 , Figure 3 and Figure 4 As shown, in a preferred embodiment, based on the above method, the telescopic mechanism 15 further includes a screw 1501, a threaded groove 1502, a strip groove 1504, and a rotating assembly. The screw 1501 is vertically rotatably mounted on the bottom of the slider 7 via a bearing. The bottom end of the insert block 13 is provided with a threaded groove 1502 that mates with the screw 1501. The bottom of the shaped frame 4 is provided with a strip groove 1504 for the screw 1501 to pass through. The bottom of the screw 1501 is provided with a rotating assembly.

[0045] If pipes with different curvatures need to be processed, the rotation component can be used to control the rotation of the screw 1501 during the bending process. The position of the screw 1501 remains unchanged, and the control block 13 moves vertically downward and is pulled out from the slot 12 on the slide rod 9, releasing the fixed state of the slide rod 9. When the bracket 4 continues to rotate, the pipe at the end of the slide rod 9 will not be bent. If pipes with different curvatures do not need to be processed, the rotation of the screw 1501 can be left uncontrolled during the bending process.

[0046] like Figure 2 , Figure 3 and Figure 4 As shown, in a preferred embodiment, based on the above method, the rotating assembly further includes a gear 1503, a second arc-shaped groove 1505 and a rack 1506. The gear 1503 is fixed to the bottom end of the screw 1501 by bolts. The top of the frame 1 is provided with a second arc-shaped groove 1505, and the inner side of the second arc-shaped groove 1505 is provided with a rack 1506 that meshes with the gear 1503.

[0047] When processing pipes with different curvatures, as the C-shaped frame 4 rotates, the gear 1503 at the bottom of the screw 1501 rotates along the rack 1506, thereby automatically rotating the screw 1501. If processing pipes with different curvatures is not required, the gear 1503 can be removed.

[0048] like Figure 2 ,and Figure 3As shown, in a preferred embodiment, based on the above method, the surface of the inclined edge 14 is further coated with a wear-resistant coating. The inclined angle of the inclined edge 14 is 45°. The wear-resistant coating is a tungsten carbide wear-resistant coating, which is applied by plasma spraying. The coating thickness is 0.1-0.3 mm, and the hardness reaches HV1000-1200, thereby improving the wear resistance, reducing the wear of the inclined edge 14, and increasing the service life.

[0049] like Figure 2 ,and Figure 3 As shown, in a preferred embodiment, based on the above method, guide grooves are further provided on both the upper and lower sides of the inside of the C-shaped frame 4 along the length direction. Limiting blocks are fixed at the top and bottom of the slider 7, and the limiting blocks slide inside the guide grooves. When the slider 7 moves, the limiting blocks move inside the guide grooves, ensuring the horizontal movement of the slider 7.

[0050] Example 3

[0051] The solutions in Embodiments 1 and 2 will be further described below with reference to their specific working methods.

[0052] In use, initially, the insert block 13 is inserted into the slot 12 to fix the position of the slide rod 9, preventing it from sliding inside the groove 8. At this time, the tension spring 10 is in a stretched state. Then, multiple sets of pipes are horizontally passed between the first rotating wheel 3 and the second rotating wheel 11, with the pipes protruding a certain length. The non-penetrating ends of the pipes are then fixed. Then, the hydraulic cylinder 6 is activated to control the slide rod 9 on the slider 7 to slide simultaneously toward the first rotating wheel 3. The first rotating wheel 3 and the second rotating wheel 11 are used to squeeze and limit the pipes. After both ends of the pipes are completely limited, the motor 501 is activated to control the rotation of the turntable 502. The limiting ring 503 limits the turntable 502 to ensure that the turntable 502 rotates horizontally. When the turntable 502 rotates, it drives the shaft 2 and the C-shaped frame 4 to rotate. The second rotating wheel 11 on the C-shaped frame 4 compresses the pipes. The protruding section is squeezed, and the pipe is bent against the outside of the first rotating wheel 3. In addition, during the bending process, if it is necessary to process pipes with different curvatures, the gear 1503 is fixed at the bottom of the screw 1501, and the gear 1503 meshes with the rack 1506. As the convex frame 4 rotates, the gear 1503 at the bottom of the screw 1501 rotates along the rack 1506, thereby automatically rotating the screw 1501. The position of the screw 1501 remains unchanged, and the control block 13 moves vertically downward and is pulled out from the slot 12 on the slide rod 9, releasing the fixed state of the slide rod 9. When the convex frame 4 continues to rotate, the pipe at the end of the slide rod 9 will not be bent. If pipes with the same curvature are to be processed, the gear 1503 can be removed. The rotation of the convex frame 4 will not cause the screw 1501 to rotate, and the position of the block 13 is limited.

[0053] The above description is only a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed by the present utility model, based on the technical solution and concept of the present utility model, shall fall within the protection scope of the present utility model.

Claims

1. A metal tube bending and forming device, comprising a frame (1), characterized in that: A shaft (2) is vertically and rotatably installed at the middle position of the top of the frame (1). Multiple sets of first rotating wheels (3) are horizontally installed on the shaft (2) along the height direction. A shaped frame (4) is fixed between the two ends of the shaft (2). A drive mechanism (5) for controlling the rotation of the shaft (2) and the shaped frame (4) is provided at the bottom of the frame (1). A hydraulic cylinder (6) is installed at the end of the C-shaped frame (4). A slider (7) is slidably arranged inside the C-shaped frame (4) along the length direction. The output end of the hydraulic cylinder (6) is connected to the slider (7). Multiple sets of sliding grooves (8) corresponding to the first rotating wheel (3) are opened at the end of the slider (7) near the first rotating wheel (3). A sliding rod (9) is slidably arranged inside the sliding groove (8). A tension spring (10) is provided between the inner end of the sliding rod (9) and the inner end of the sliding groove (8). The two ends of the tension spring (10) are fixedly connected to the end face of the sliding rod (9) and the inner end face of the sliding groove (8) respectively. A second rotating wheel (11) is rotatably installed at the outer end of the sliding rod (9). A plug (13) is vertically slidably arranged at the bottom of the slider (7). A bevel (14) is provided on the side of the top of the plug (13) near the second rotating wheel (11). A slot (12) that cooperates with the plug (13) is vertically opened on the sliding rod (9). Below the U-shaped frame (4) is a telescopic mechanism (15) for controlling the vertical movement of the insert (13).

2. The metal tube bending and forming device according to claim 1, characterized in that: The drive mechanism (5) includes a motor (501), a turntable (502) and a limiting ring (503). The motor (501) is installed at the bottom of the frame (1). The turntable (502) is horizontally installed at the output end of the motor (501). The limiting ring (503) is fixed at the inner top of the frame (1). The bottom of the turntable (502) is attached to the top of the limiting ring (503), and the turntable (502) and the limiting ring (503) are rotatably connected. The bottom end of the shaft (2) is fixedly connected to the turntable (502).

3. The metal tube bending and forming device according to claim 2, characterized in that: A support rod (504) is fixed on the side of the top of the turntable (502). A first arc groove (505) that cooperates with the support rod (504) is opened on the top of the frame (1). The support rod (504) slides inside the first arc groove (505). The top of the support rod (504) is fixedly connected to the shaped frame (4).

4. The metal tube bending and forming device according to claim 1, characterized in that: The telescopic mechanism (15) includes a screw (1501), a threaded groove (1502), a strip groove (1504), and a rotating assembly. The screw (1501) is vertically rotated and mounted on the bottom of the slider (7) via a bearing. The bottom end of the insert (13) is provided with a threaded groove (1502) that mates with the screw (1501). The bottom of the shaped frame (4) is provided with a strip groove (1504) for the screw (1501) to pass through. The bottom of the screw (1501) is provided with a rotating assembly.

5. The metal tube bending and forming device according to claim 4, characterized in that: The rotating assembly includes a gear (1503), a second arc groove (1505), and a rack (1506). The gear (1503) is fixed to the bottom end of the screw (1501) by bolts. The top of the frame (1) is provided with a second arc groove (1505), and the inner side of the second arc groove (1505) is provided with a rack (1506) that meshes with the gear (1503).

6. The metal tube bending and forming device according to claim 1, characterized in that: The surface of the bevel (14) is coated with a wear-resistant coating, and the bevel angle of the bevel (14) is 45°.

7. The metal tube bending and forming device according to claim 1, characterized in that: The upper and lower sides of the inside of the shaped frame (4) are provided with guide grooves along the length direction. The top and bottom of the slider (7) are fixed with limit blocks, and the limit blocks slide inside the guide grooves.

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