Thin-wall pipe bending forming device
By designing the bending mechanism and limiting mechanism of the thin-walled pipe bending and forming device, the problem of pipe damage during the standardized production of thin-walled bending pipes and the manual bending process is solved, and uniform bending and high-precision bending effects of the pipe are achieved.
Patent Information
- Application Number
- CN202420266286.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-02-02
AI Technical Summary
It is difficult to achieve standardized production of thin-walled curved pipelines in the prior art, and the pipes are prone to wrinkles and cracks during manual bending, and the bending radius and angle do not meet the requirements.
A thin-walled pipe bending and forming device is designed, including a bending mechanism and a limiting mechanism. The bending mechanism forms a through hole suitable for the pipe through the fixed pulley and the following pulley, and uses the horizontal plate and the vertical axis to drive the following pulley to rotate around the fixed pulley to achieve uniform bending of the pipe. The limiting mechanism limits and raises the pipe through arc plates and backing plates to avoid pipe displacement and improve bending accuracy.
The device is easy to operate, can bend thin-walled pipes evenly, avoids wrinkles and cracks in the pipe, and improves the accuracy and consistency of bending.
Smart Images
Figure CN222370042U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of tube material processing, and in particular relates to a thin-wall tube bending and forming device. Background Art
[0002] In the fields of aerospace, equipment manufacturing, etc., in order to cooperate with other parts, the sizes of thin-walled curved pipes vary, and it is difficult to achieve standardized production of thin-walled curved pipes of all specifications. The production of small batches of thin-walled curved pipes is mostly done by operators manually bending them by clamping them on the curved pipes. However, due to the small wall thickness of the pipe, the force on the left and right sides of the pipe is uneven during the bending process, which is prone to wrinkles and cracks. The rebound after bending also easily causes the bending radius and bending angle of the pipe to not meet the requirements. Therefore, a thin-walled pipe bending forming device that is easy to operate should be provided. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a thin-walled pipe bending and forming device in view of the deficiencies in the above-mentioned prior art. The device has a simple structure and a reasonable design. By setting a bending mechanism, it is convenient to use the pressure of a follower pulley on the thin-walled pipe to bend the thin-walled pipe; by setting a limiting mechanism, it is convenient to limit the other end of the thin-walled pipe, thereby avoiding displacement of the thin-walled pipe during the bending process and improving the bending accuracy.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a thin-walled pipe bending and forming device, characterized in that it includes a bending mechanism and a limiting mechanism placed on a platform;
[0005] The bending mechanism comprises a fixed pulley arranged on the platform, a central axis vertically passing through the fixed pulley and extending from the top of the fixed pulley, a transverse plate sleeved on the central axis and a follower pulley arranged at the bottom of the transverse plate, the transverse plate can rotate around the central axis, a vertical axis for fixing the follower pulley is arranged in the transverse plate, the fixed pulley and the follower pulley are waist-shaped pulleys, a through hole is formed between the fixed pulley and the follower pulley for one end of the thin-walled tube to pass through, and the inner diameter of the through hole is adapted to the outer diameter of the thin-walled tube;
[0006] The limiting mechanism includes a pad arranged on the platform and an arc plate arranged on the pad, the other end of the thin-walled tube passes through between the arc plate and the pad, and the height of the upper surface of the pad is consistent with the height of the lower end of the inner surface of the through hole.
[0007] The above-mentioned thin-walled pipe bending and forming device is characterized in that a handle is provided at one end of the transverse plate away from the fixed pulley, and the angle between the handle and the horizontal line is an acute angle.
[0008] The above-mentioned thin-walled pipe bending and forming device is characterized in that ear plates are arranged on both sides of the arc-shaped plate, and bolts anchored in the pad and the platform are penetrated through the ear plates.
[0009] The above-mentioned thin-walled pipe bending and forming device is characterized in that: a convex edge is provided at the lower end of the outer side wall of the vertical shaft, and a groove that is engaged with the convex edge is provided at the lower end of the inner side wall of the follower pulley.
[0010] Compared with the prior art, the utility model has the following advantages:
[0011] 1. The utility model is easy and quick to operate. By setting a fixed pulley and a follower pulley, it is convenient to form a through hole adapted to a thin-walled pipe. By setting a central axis and a vertical axis, it is convenient to make the horizontal plate drive the vertical axis to rotate around the central axis, that is, the follower pulley rotates around the fixed pulley, so that the pressure of the follower pulley on the thin-walled pipe is utilized to bend the thin-walled pipe. At the same time, the contact surface area of the fixed pulley and the follower pulley with the thin-walled pipe is large and smooth, the force is balanced, and wrinkles on the thin-walled pipe are avoided, and the utility model is highly practical.
[0012] 2. The utility model sets an arc plate to limit the other end of the thin-walled pipe, thereby preventing the thin-walled pipe from shifting during the bending process and affecting the bending curvature; and sets a pad to raise the thin-walled pipe so that the height of the thin-walled pipe inside and outside the through hole is consistent, thereby improving the bending accuracy.
[0013] To sum up, the utility model has a simple structure and a reasonable design. By setting a bending mechanism, it is convenient to utilize the pressure of the follower pulley on the thin-walled tube to bend the thin-walled tube; by setting a limiting mechanism, it is convenient to limit the other end of the thin-walled tube to avoid displacement of the thin-walled tube during the bending process, thereby improving the bending accuracy.
[0014] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of the utility model.
[0016] Figure 2 It is a cross-sectional view of the bending mechanism of the utility model.
[0017] Figure 3 It is a schematic diagram of the use state of the utility model.
[0018] Description of reference numerals:
[0019] 1-Platform; 2-Horizontal board; 3-Handle;
[0020] 4-fixed pulley; 5-follower pulley; 6-center axis;
[0021] 7-vertical axis; 8-through hole; 9-convex edge;
[0022] 10-arc plate; 11-ear plate; 12-pad plate;
[0023] 13-Thin-walled pipes. DETAILED DESCRIPTION
[0024] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model includes a bending mechanism and a limiting mechanism placed on the platform 1.
[0025] The bending mechanism includes a fixed pulley 4 arranged on the platform 1, a central axis 6 vertically inserted into the fixed pulley 4 and extending out of the top of the fixed pulley 4, a transverse plate 2 sleeved on the central axis 6, and a follower pulley 5 arranged at the bottom of the transverse plate 2, the transverse plate 2 can rotate around the central axis 6, and a vertical axis 7 for fixing the follower pulley 5 is arranged in the transverse plate 2, the fixed pulley 4 and the follower pulley 5 are both waist-type pulleys, and a through hole 8 for one end of a thin-walled tube 13 to pass through is formed between the fixed pulley 4 and the follower pulley 5, and the inner diameter of the through hole 8 is adapted to the outer diameter of the thin-walled tube 13.
[0026] The limiting mechanism includes a pad 12 arranged on the platform 1 and an arc plate 10 arranged on the pad 12, the other end of the thin-walled tube 13 passes through between the arc plate 10 and the pad 12, and the height of the upper surface of the pad 12 is consistent with the height of the lower end of the inner surface of the through hole 8.
[0027] In actual use, by setting the fixed pulley 4 and the follower pulley 5, it is convenient to form a through hole 8 adapted to the thin-walled tube 13, and by setting the central axis 6 and the vertical axis 7, it is convenient to make the horizontal plate 2 drive the vertical axis 7 to rotate around the central axis 6, that is, the follower pulley 5 rotates around the fixed pulley 4, so that the pressure of the follower pulley 5 on the thin-walled tube 13 is utilized to make the thin-walled tube 13 bend; at the same time, the contact surface area between the fixed pulley 4 and the follower pulley 5 and the thin-walled tube 13 is large and smooth, so the force is balanced, thereby avoiding wrinkles on the thin-walled tube 13.
[0028] In this embodiment, a handle 3 is provided at one end of the transverse plate 2 away from the fixed pulley 4, and the angle between the handle 3 and the horizontal line is an acute angle.
[0029] During actual use, the handle 3 is wrapped with a soft pad to protect the technician's hand safety. The platform is in a horizontal state. By setting the angle between the handle 3 and the horizontal line to an acute angle, the gap between the handle 3 and the platform is increased, which is conducive to the technician having enough space to hold the handle 3 for operation.
[0030] In this embodiment, ear plates 11 are provided on both sides of the arc-shaped plate 10 , and bolts that are anchored into the pad 12 and the platform 1 are passed through the ear plates 11 .
[0031] In actual use, by setting the arc plate 10, it is convenient to limit the other end of the thin-walled tube 13 to prevent the thin-walled tube 13 from shifting during the bending process and affecting the bending curvature; by setting the pad 12, it is convenient to raise the thin-walled tube 13 so that the height of the thin-walled tube 13 inside and outside the through hole 8 is consistent, thereby improving the bending accuracy.
[0032] In this embodiment, a convex edge 9 is provided at the lower end of the outer side wall of the vertical shaft 7 , and a groove engaged with the convex edge 9 is provided at the lower end of the inner side wall of the follower pulley 5 .
[0033] In actual use, the number of the protrusions 9 is at least two, and the two protrusions 9 are symmetrically arranged on the outer wall of the vertical shaft 7. By clamping the protrusions 9 into the groove at the lower end of the inner wall of the follower pulley 5, the vertical shaft 7 and the follower pulley 5 are fixedly connected to prevent the follower pulley 5 from rotating.
[0034] like Figure 3 As shown, when the utility model is used, the central axis 6, the pad 12 and the arc plate 10 are fixed on the platform 1, and then one end of the thin-walled tube 13 is passed through between the arc plate 10 and the pad 12, and the other end of the thin-walled tube 13 is passed through the through hole 8. At this time, the fixed pulley 4 remains stationary, and the technician uses the handle 3 to make the cross plate 2 drive the follower pulley 5 to rotate around the fixed pulley 4, thereby applying pressure to the thin-walled tube 13, causing the thin-walled tube 13 to bend.
[0035] The above is only a preferred embodiment of the present invention and does not constitute any limitation to the present invention. Any simple modification, change and equivalent structural change made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention.
Claims
1. A thin-walled pipe bending and forming device, characterized in that: It comprises a bending mechanism and a limiting mechanism placed on a platform (1); The bending mechanism comprises a fixed pulley (4) arranged on the platform (1), a central axis (6) vertically penetrating the fixed pulley (4) and extending from the top of the fixed pulley (4), a transverse plate (2) sleeved on the central axis (6), and a follower pulley (5) arranged at the bottom of the transverse plate (2), the transverse plate (2) being capable of rotating around the central axis (6), a vertical axis (7) for fixing the follower pulley (5) being arranged in the transverse plate (2), the fixed pulley (4) and the follower pulley (5) being waist-shaped pulleys, a through hole (8) for one end of a thin-walled tube (13) to pass through is formed between the fixed pulley (4) and the follower pulley (5), the inner diameter of the through hole (8) being adapted to the outer diameter of the thin-walled tube (13); The limiting mechanism comprises a pad (12) arranged on the platform (1) and an arc-shaped plate (10) arranged on the pad (12); the other end of the thin-walled tube (13) passes through between the arc-shaped plate (10) and the pad (12); the height of the upper surface of the pad (12) is consistent with the height of the lower end of the inner surface of the through hole (8).
2. A thin-walled pipe bending and forming device according to claim 1, characterized in that: A handle (3) is provided at one end of the transverse plate (2) away from the fixed pulley (4), and the angle between the handle (3) and the horizontal line is an acute angle.
3. A thin-walled pipe bending and forming device according to claim 1, characterized in that: Ear plates (11) are provided on both sides of the arc-shaped plate (10), and bolts that are anchored into the pad (12) and the platform (1) are passed through the ear plates (11).
4. A thin-walled pipe bending and forming device according to claim 1, characterized in that: The lower end of the outer wall of the central shaft (6) is provided with a convex edge (9), and the lower end of the inner wall of the follower pulley (5) is provided with a groove that is engaged with the convex edge (9).