Round pipe bending die

Abstract

The utility model discloses a round pipe bending die which comprises a bottom plate. The shaft rod is fixed on the top surface of the bottom plate; the two shaping wheels are arranged on the shaft rod in a sliding and sleeving manner, each shaping wheel is of a circular truncated cone-shaped structure, and the two shaping wheels are symmetrically arranged; the adjusting structure is arranged on the bottom plate and used for adjusting the distance between the two shaping wheels; the bending structure is arranged on the bottom plate and is used for bending the round pipe; and the limiting structure is arranged on the bottom plate and used for limiting the round pipe. The distance between the shaping wheels can be flexibly adjusted according to the pipe diameter of the circular pipe, the two adjusting plates are driven to be close to or far away from each other by rotating the adjusting screw rod, so that the positions of the shaping wheels are adjusted, the shaping wheels can be fully attached to the surface of the circular pipe, and the design not only improves the adaptability of the mold to the circular pipes with different pipe diameters, but also improves the production efficiency. And tight contact between the round pipe and the die in the bending process is also ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of round tube bending, in particular to a round tube bending die. Background Technique

[0002] A round tube bending die is a tool used to bend round tube materials into specific shapes and angles. In metal processing and manufacturing, round tube bending dies play a crucial role, especially when precise bending of round tubes is required to manufacture various products, such as building structures, automotive parts, furniture, pipe systems, etc.

[0003] The existing round tube bending dies are usually of a fixed structure, and the die cannot be adjusted adaptively according to the size of the round tube. When bending a round tube with a small diameter, there will be a gap between the round tube and the die, and this gap will affect the bending accuracy of the die for the round tube. Content of the Utility Model

[0004] In order to overcome the above technical problems, the purpose of the utility model is to provide a round tube bending die.

[0005] The purpose of the utility model can be realized by the following technical solutions:

[0006] A round tube bending die, comprising:

[0007] A bottom plate;

[0008] A shaft rod, fixed on the top surface of the bottom plate;

[0009] Two shaping wheels, both slidably sleeved on the shaft rod, each shaping wheel is in a frustum shape, and the two shaping wheels are symmetrically arranged;

[0010] An adjusting structure, arranged on the bottom plate, for adjusting the distance between the two shaping wheels;

[0011] A bending structure, arranged on the bottom plate, for bending the round tube;

[0012] A limiting structure, arranged on the bottom plate, for providing limitation to the round tube.

[0013] As a further scheme of the utility model: the adjusting structure includes:

[0014] An adjusting screw rod, rotatably installed on the top surface of the bottom plate;

[0015] Two adjusting plates, both threadedly sleeved on the adjusting screw rod, and the two adjusting plates are respectively fixedly connected to the two shaping wheels.

[0016] As a further solution of the utility model: two thread segments with the same length and opposite directions are arranged on the adjusting screw rod, and the two adjusting plates are respectively sleeved on the threads at both ends in a threaded manner.

[0017] As a further solution of the utility model: the bending structure includes:

[0018] A rotating frame, rotatably assembled on the shaft rod;

[0019] A handle, fixed on the rotating frame;

[0020] A bending wheel, slidably arranged on the rotating frame;

[0021] Two limit bolts, respectively fixed at the upper and lower ends of the bending wheel;

[0022] Two sliding openings, both opened on the rotating frame, the two sliding openings are arranged opposite to each other, and the two limit bolts respectively slide in the two sliding openings;

[0023] A fixing plate, fixed on the rotating frame;

[0024] An adjusting bolt, passing through the fixing plate and being threadedly sleeved with the fixing plate;

[0025] A sleeve plate, fixedly sleeved on the upper limit bolt, and one end of the adjusting bolt is rotatably installed on the side surface of the sleeve plate.

[0026] As a further solution of the utility model: the limiting structure includes:

[0027] A fixing rod, fixed on the top surface of the bottom plate;

[0028] A limiting frame, fixed on the fixing rod, and the limiting frame is in a U-shaped structure;

[0029] A threaded opening, opened on the limiting frame;

[0030] A pressing bolt, threadedly sleeved in the threaded opening.

[0031] As a further solution of the utility model: the cross-sectional diameter of the bending wheel decreases from the middle to both ends.

[0032] The beneficial effects of the utility model:

[0033] 1. The distance between the shaping wheels in the mold can be flexibly adjusted according to the diameter of the round tube. By rotating the adjusting screw rod, the two adjusting plates are driven to approach or move away from each other, so as to adjust the position of the shaping wheel, ensuring that the shaping wheel can fully fit the surface of the round tube. This design not only improves the adaptability of the mold to round tubes with different diameters, but also ensures the close contact between the round tube and the mold during the bending process, avoiding the bending accuracy problem caused by the gap;

[0034] 2. The position of the bending wheel can also be precisely adjusted. By rotating the adjusting bolt, the sleeve plate and the limit bolt are driven to move, so that the bending wheel is in close contact with the round tube, avoiding the gap between the round tube and the bending wheel during the bending process, and further ensuring the bending accuracy. In addition, the limit structure on the bottom plate limits round tubes of different sizes through the pressing bolt, effectively preventing the round tube from shaking during the bending process and improving the stability and accuracy of the bending process. Description of the Drawings

[0035] The present utility model will be further described below in conjunction with the drawings.

[0036] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0037] Figure 2 is a schematic diagram of the structure from another perspective of the present utility model.

[0038] In the figure: 1 bottom plate, 2 shaft rod, 3 shaping wheel, 41 adjusting screw, 42 adjusting plate, 51 rotating frame, 52 handle, 53 bending wheel, 54 limit bolt, 55 sliding opening, 56 fixing plate, 57 adjusting bolt, 61 fixing rod, 62 limit frame, 63 threaded opening, 64 pressing bolt. Detailed Embodiment

[0039] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0040] As Figure 1-2 shown, the round tube bending die includes a bottom plate 1; a shaft rod 2 fixed on the top surface of the bottom plate 1; two shaping wheels 3, both slidably sleeved on the shaft rod 2, each shaping wheel 3 having a frustum-shaped structure, and the two shaping wheels 3 being symmetrically arranged;

[0041] The circular tube bending die further includes an adjusting structure, which is arranged on the bottom plate 1 and is used to adjust the distance between the two shaping wheels 3. The adjusting structure includes: an adjusting screw rod 41, which is rotatably installed on the top surface of the bottom plate 1; two adjusting plates 42, both of which are threadedly sleeved on the adjusting screw rod 41, and the two adjusting plates 42 are respectively fixedly connected to the two shaping wheels 3. The adjusting screw rod 41 is provided with two thread segments of the same length and opposite directions, and the two adjusting plates 42 are respectively threadedly sleeved on the two ends of the threads. The staff can adjust the distance between the two shaping wheels 3 according to the diameter of the circular tube. Specifically, a bolt head is fixed at the top end of the adjusting screw rod 41, and the staff can use a screwdriver to rotate the bolt head to make the adjusting screw rod 41 rotate. The adjusting screw rod 41 is provided with two thread segments of the same length and opposite directions. Therefore, when the adjusting screw rod 41 rotates, it can drive the two adjusting plates 42 to approach or move away from each other. When the two adjusting plates 42 move, the two shaping wheels 3 will also move accordingly. Therefore, the staff can adjust the distance between the two shaping wheels 3 by rotating the adjusting screw rod 41, so that the two shaping wheels 3 can fully fit the surface of the circular tube;

[0042] The circular tube bending die further includes a bending structure, which is arranged on the bottom plate 1 and is used to bend the circular tube. The bending structure includes: a rotating frame 51, which is rotatably assembled on the shaft rod 2; a handle 52, which is fixed on the rotating frame 51; a bending wheel 53, which is slidably arranged on the rotating frame 51, and the cross-sectional diameter of the bending wheel 53 decreases from the middle to both ends; two limit bolts 54, which are respectively fixed at the upper and lower ends of the bending wheel 53; two sliding openings 55, both of which are opened on the rotating frame 51, and the two sliding openings 55 are arranged opposite to each other, and the two limit bolts 54 respectively slide in the two sliding openings 55; a fixing plate 56, which is fixed on the rotating frame 51; an adjusting bolt 57, which passes through the fixing plate 56 and is threadedly sleeved with the fixing plate 56; a sleeve plate, which is fixedly sleeved on the upper limit bolt 54, and one end of the adjusting bolt 57 is rotatably installed on the side surface of the sleeve plate. When the adjusting bolt 57 rotates, it can move and drive the sleeve plate to move. When the sleeve plate moves, it drives the corresponding limit bolt 55 to move, which makes the bending wheel 53 move accordingly until the bending wheel 53 contacts the circular tube. This design can avoid the generation of gaps between the circular tube and the bending wheel 53, and also avoid the generation of gaps between the circular tube and the two shaping wheels 3;

[0043] The circular tube bending die further includes a limiting structure, which is arranged on the bottom plate 1 and used to provide limitation for the circular tube. The limiting structure includes: a fixing rod 61, fixed on the top surface of the bottom plate 1; a limiting frame 62, fixed on the fixing rod 61, and the limiting frame 62 is of a U-shaped structure; a threaded port 63, opened on the limiting frame 62; a pressing bolt 64, threadedly sleeved in the threaded port 63. When bending the circular tube, the worker passes the circular tube through the U-shaped limiting frame 62, and then uses a screwdriver to rotate the pressing bolt 64 until the pressing bolt 64 presses against the circular tube. The setting of the pressing bolt 64 enables the limiting structure to provide limitation for circular tubes of different sizes, further ensuring the bending accuracy of the device for the circular tube.

[0044] The working principle of the present utility model:

[0045] When the circular tube bending die proposed by the present utility model is in use, the worker can adjust the distance between the two shaping wheels 3 according to the diameter of the circular tube. Specifically, a bolt head is fixed at the top end of the adjusting screw rod 41, and the worker can use a screwdriver to rotate the bolt head to make the adjusting screw rod 41 rotate. There are two threaded sections with the same length and opposite directions on the adjusting screw rod 41. Therefore, when the adjusting screw rod 41 rotates, it can drive the two adjusting plates 42 to approach or move away from each other. When the two adjusting plates 42 move, the two shaping wheels 3 will also move accordingly. Therefore, the worker can adjust the distance between the two shaping wheels 3 by rotating the adjusting screw rod 41, so that the two shaping wheels 3 can fully fit the surface of the circular tube.

[0046] After adjusting the positions of the two shaping wheels 3, the worker adjusts the position of the bending wheel 53. Specifically, the worker uses a screwdriver to rotate the adjusting bolt 57. When the adjusting bolt 57 rotates, it can move and drive the sleeve plate to move. When the sleeve plate moves, it drives the corresponding limiting bolt 55 to move, which makes the bending wheel 53 move accordingly until the bending wheel 53 contacts the circular tube. This design can avoid the generation of gaps between the circular tube and the bending wheel 53, and also avoid the generation of gaps between the circular tube and the two shaping wheels 3, and avoid the shaking of the circular tube during the bending process, thereby ensuring the bending accuracy of the device for the circular tube.

[0047] A limiting structure is also arranged on the bottom plate 1, and the limiting structure provides limitation for one end of the circular tube. Specifically, when bending the circular tube, the worker passes the circular tube through the U-shaped limiting frame 62, and then uses a screwdriver to rotate the pressing bolt 64 until the pressing bolt 64 presses against the circular tube. The setting of the pressing bolt 64 enables the limiting structure to provide limitation for circular tubes of different sizes, further ensuring the bending accuracy of the device for the circular tube.

[0048] The above has described in detail an embodiment of the present utility model, but the above content is only a preferred embodiment of the present utility model and cannot be considered as defining the scope of implementation of the present utility model. All equivalent changes and improvements made according to the scope of application of the present utility model shall still fall within the scope covered by the patent of the present utility model.

Claims

1. Round tube bending die, characterized in that, Comprising: Bottom plate (1); Shaft rod (2), fixed on the top surface of the bottom plate (1); Two shaping wheels (3), both slidably sleeved on the shaft rod (2), each shaping wheel (3) is in a frustum shape, and the two shaping wheels (3) are symmetrically arranged; Adjusting structure, arranged on the bottom plate (1), for adjusting the distance between the two shaping wheels (3); Bending structure, arranged on the bottom plate (1), for bending a circular tube; Limiting structure, arranged on the bottom plate (1), for providing limitation to the circular tube.

2. The circular tube bending die according to claim 1, wherein The adjusting structure includes: Adjusting screw rod (41), rotatably installed on the top surface of the bottom plate (1); Two adjusting plates (42), both threadedly sleeved on the adjusting screw rod (41), and the two adjusting plates (42) are respectively fixedly connected to the two shaping wheels (3).

3. The circular tube bending die according to claim 2, wherein, There are two thread segments with the same length and opposite directions on the adjusting screw rod (41), and the two adjusting plates (42) are respectively threadedly sleeved on the two ends of the threads.

4. The circular tube bending die according to claim 1, characterized in that, The bending structure includes: Rotating frame (51), rotatably assembled on the shaft rod (2); Handle (52), fixed on the rotating frame (51); Bending wheel (53), slidably arranged on the rotating frame (51); Two limiting bolts (54), respectively fixed on the upper and lower ends of the bending wheel (53); Two sliding openings (55), both opened on the rotating frame (51), the two sliding openings (55) are arranged opposite to each other, and the two limiting bolts (54) respectively slide in the two sliding openings (55); Fixed plate (56), fixed on the rotating frame (51); Adjusting bolt (57), passing through the fixed plate (56) and threadedly sleeved with the fixed plate (56); Sleeve plate, fixedly sleeved on the upper limiting bolt (54), and one end of the adjusting bolt (57) is rotatably installed on the side surface of the sleeve plate.

5. The round tube bending die according to claim 1, characterized in that, The limiting structure includes: Fixed rod (61), fixed on the top surface of the bottom plate (1); Limiting frame (62), fixed on the fixed rod (61), and the limiting frame (62) is in a U-shaped structure; Threaded opening (63), opened on the limiting frame (62); Pressing bolt (64), threadedly sleeved in the threaded opening (63).

6. The circular tube bending die according to claim 4, wherein, The cross-sectional diameter of the bending wheel (53) decreases from the middle to both ends.

Images