Anti-deformation device for pipe bending process of pipe bending machine
By designing anti-deformation support components and easy-connection mechanisms, the problem of pipe deformation caused by wear of traditional mandrels is solved, achieving uniform support and efficient pipe bending operations during the bending process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-03-17
AI Technical Summary
Traditional mandrels have difficulty in precisely controlling the gap between themselves and the inner wall of the tube during use, leading to wear and tear. They cannot effectively support the tube, causing wrinkles during bending and affecting product quality.
The anti-deformation support components include a moving platform, airbags, a protective layer, and an easy-connection mechanism. Through the uniform support of the airbags and the protection of the tapered connectors, the pipe is ensured to be subjected to uniform stress during bending, thus preventing deformation.
It achieves uniform support for the pipe during bending, avoids excessive deformation and wrinkles, improves the efficiency and flexibility of pipe bending operations, and extends the service life of the airbag.
Smart Images
Figure CN223997020U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe processing technology, specifically to a device for preventing deformation during the pipe bending process of a pipe bending machine. Background Technology
[0002] As an important piece of equipment for metal pipe processing, pipe bending machines are widely used in various pipe processing fields. Their working principle is mainly to bend metal pipes into the required shape by means of molds and servo systems and mechanical force. During the bending process, because the pipe is a hollow thin-walled structure, it is easy to produce a variety of defects, such as excessive thinning or even cracking on the outer side of the pipe, instability and wrinkling on the inner side, and cross-sectional distortion.
[0003] In existing technologies, to reduce excessive deformation of the pipe due to uneven stress during bending, a mandrel bending process is usually adopted, in which a mandrel is inserted into the pipe to provide support. However, since the gap between the traditional mandrel and the inner wall of the pipe is difficult to control precisely during use, the mandrel will wear after long-term use, resulting in an increased gap between the mandrel and the inner wall of the pipe. This makes it impossible to effectively support the pipe, causing wrinkles to easily form during bending and affecting product quality. Therefore, a deformation prevention device for the bending process of a pipe bending machine is proposed to address the above problems. Utility Model Content
[0004] The purpose of this utility model is to provide a deformation prevention device for the bending process of a pipe bending machine, so as to solve the problem that the gap between the mandrel and the inner wall of the pipe is difficult to control precisely during the use of traditional mandrels, and the mandrel will wear after long-term use, resulting in an increased gap between the mandrel and the inner wall of the pipe, which cannot effectively support the pipe, making the pipe prone to wrinkles during the bending process and affecting product quality.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A device for preventing deformation during the bending process of a pipe bending machine includes a support plate, on the upper surface of which an anti-deformation support assembly is slidably connected; the anti-deformation support assembly includes a movable platform, on one side of the upper surface of the movable platform a pipe clamp is fixedly connected, and on the other side of the upper surface of the movable platform a connecting box is fixedly connected, an airbag is installed in the middle of the connecting box, a protective layer is fixedly connected to the outer side of the airbag, a movable groove is provided on the outer side of the protective layer, and an easy-connection mechanism is installed at the front end of the movable groove.
[0007] As a further optimization of this utility model, the easy-connection mechanism includes a plug sleeve, which is bonded and fixed to the front end of the airbag. The front end of the inner side of the plug sleeve is threaded with a threaded tube, and the front end of the threaded tube is fixedly connected with a tapered plug connector. The outer side of the tapered plug connector is provided with an anti-slip groove.
[0008] As a further optimization of this utility model, the tapered connector has a hollow internal structure, the outer side of the tapered connector and the outer side of the connector sleeve together form a continuous arc structure, and the anti-slip groove is provided in several places, with the anti-slip groove extending to one end near the connector sleeve.
[0009] As a further optimization of this utility model, an exhaust pipe is fixedly connected to the middle of the front end of the airbag, the inner side of the exhaust pipe is connected to the inner side of the airbag, and an air valve is threadedly connected to the front end of the exhaust pipe, the air valve being located inside the conical connector.
[0010] As a further optimization of this utility model, a pipe bending mechanism is installed on one side of the upper surface of the support plate, and an electric cylinder is fixedly connected to the other side of the upper surface of the support plate. The electric cylinder is parallel to the moving platform, and the telescopic end of the electric cylinder is fixedly connected to the center of the rear end of the connecting box.
[0011] As a further optimization of this utility model, there is a gap between the outer side of the protective layer and the inner side of the pipe clamp, and the outer side of the protective layer has a number of movable slots, which are arranged linearly at equal intervals.
[0012] As a further optimization of this utility model, the interior of the connecting box is a hollow structure, and an electric air pump is fixedly connected to the side of the connecting box near the airbag. The air outlet of the electric air pump is connected to the inside of the airbag.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] In this invention, the device achieves uniform support inside the pipe by setting anti-deformation support components and easy-connection mechanism, effectively avoiding excessive deformation caused by uneven force during pipe bending. At the same time, the easy-connection mechanism protects the airbag from damage by burrs at the pipe end and extends the service life of the exhaust pipe. The movable groove design enhances the extensibility of the protective layer and better adapts to changes in the pipe bending angle. The device is easy to operate, the airbag is easy to reuse, and it improves the efficiency and flexibility of pipe bending operations. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a side view of the present invention.
[0017] Figure 3 This is a schematic diagram of the anti-deformation support component of this utility model;
[0018] Figure 4This is a schematic diagram of the explosion structure of the airbag of this utility model;
[0019] Figure 5 This utility model Figure 4 A schematic diagram of the structure at point A;
[0020] Figure 6 This is an exploded structural diagram of the easy-connection mechanism of this utility model.
[0021] In the diagram: 1. Support plate;
[0022] 2. Anti-deformation support assembly; 21. Moving platform; 22. Pipe clamp; 23. Connecting box; 24. Airbag; 25. Protective layer; 26. Movable groove; 27. Easy-connect mechanism; 271. Plug-in sleeve; 272. Threaded pipe; 273. Tapered plug-in connector; 274. Anti-slip groove;
[0023] 28. Exhaust pipe; 29. Air valve;
[0024] 3. Pipe bending mechanism; 4. Electric cylinder; 5. Electric air pump. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0027] Please see Figure 1-6 This utility model provides a technical solution:
[0028] A device for preventing deformation during the bending process of a pipe bending machine includes a support plate 1, and an anti-deformation support assembly 2 is slidably connected to the upper surface of the support plate 1. The anti-deformation support assembly 2 includes a movable platform 21, a pipe clamp 22 is fixedly connected to one side of the upper surface of the movable platform 21, a connecting box 23 is fixedly connected to the other side of the upper surface of the movable platform 21, an airbag 24 is installed in the middle of the connecting box 23, a protective layer 25 made of silicone material is fixedly connected to the outer side of the airbag 24, an active groove 26 is opened on the outer side of the protective layer 25, and an easy-connection mechanism 27 is installed at the front end of the active groove 26.
[0029] As a further implementation of this solution, the easy-connect mechanism 27 includes a plug sleeve 271. Both the plug sleeve 271 and the conical plug 273 are made of frosted metal. The plug sleeve 271 is bonded and fixed to the front end of the airbag 24. The front end of the inner side of the plug sleeve 271 is threadedly connected to a threaded tube 272. The front end of the threaded tube 272 is fixedly connected to the conical plug 273. The interior of the conical plug 273 is a hollow structure. The outer side of the conical plug 273 and the outer side of the plug sleeve 271 together form a continuous arc structure. The outer side of the conical plug 273 is provided with an anti-slip groove 274. Several anti-slip grooves 274 are provided. The anti-slip grooves 274 extend to one end close to the plug sleeve 271. With this arrangement, by flipping the conical plug 273, the conical plug 273 can be separated from the plug sleeve 271, and the airbag 24 can be deflated.
[0030] As a further implementation of this solution, an exhaust pipe 28 is fixedly connected to the middle of the front end of the airbag 24. The inner side of the exhaust pipe 28 is connected to the inner side of the airbag 24. An air valve 29 is threadedly connected to the front end of the exhaust pipe 28. The air valve 29 is located inside the conical connector 273. During operation, the conical connector 273 protects the exhaust pipe 28 and the air valve 29 to avoid damage to the exhaust pipe 28 and the air valve 29 due to impact and friction, thereby ensuring the airtightness of the airbag 24.
[0031] As a further implementation of this solution, a pipe bending mechanism 3 is installed on one side of the upper surface of the support plate 1, and an electric cylinder 4 is fixedly connected to the other side of the upper surface of the support plate 1. The electric cylinder 4 is parallel to the moving platform 21. The telescopic end of the electric cylinder 4 is fixedly connected to the center of the rear end of the connecting box 23. With this setting, the moving direction of the moving platform 21 can be flexibly adjusted by controlling the telescopic end of the electric cylinder 4.
[0032] As a further implementation of this scheme, there is a gap between the outer side of the protective layer 25 and the inner side of the pipe clamp 22. There are several movable grooves 26 opened on the outer side of the protective layer 25. The several movable grooves 26 are arranged linearly at equal intervals. This arrangement makes the protective layer 25 have better ductility and better adapt to the angle changes of pipe bending.
[0033] As a further implementation of this solution, the interior of the connecting box 23 is a cavity structure. An electric air pump 5 is fixedly connected to the side of the connecting box 23 near the airbag 24. The air outlet of the electric air pump 5 is connected to the inside of the airbag 24, and the electric air pump 5 is responsible for delivering gas to the inside of the airbag 24.
[0034] Workflow: The anti-deformation device of the pipe bending machine is powered by an external power source. Support plate 1 provides support for the anti-deformation support assembly 2, the pipe bending mechanism 3, and the electric cylinder 4. Before use, check whether the airbag 24 is damaged or aged, and whether the connection between the exhaust pipe 28 at the front end of the airbag 24 and the air valve 29 is sealed. Then, start the electric cylinder 4. The telescopic end of the electric cylinder 4 drives the moving table 21 to move away from the pipe bending mechanism 3 through the connecting box 23, thus reserving space for later pipe installation. The air bladder 24 contains a suitable amount of gas, which is then inserted into the tube to be bent through the tapered connector 273 in the easy-connect mechanism 27. Because the front end of the tapered connector 273 is tapered, and the outer side of the tapered connector 273 and the outer side of the connector sleeve 271 together form a continuous arc structure, the air bladder 24 can be easily inserted into the vertical tube through the tapered connector 273. Furthermore, both the connector sleeve 271 and the tapered connector 273 are made of frosted metal, which makes the tube end... Burrs or debris at the opening cannot damage the front end of the airbag 24, thus providing good protection for the airbag 24. One end of the installed pipe is fixed by the pipe clamp 22. By activating the electric cylinder 4 and the electric air pump 5, the pipe is moved towards the bending mechanism 3 via the telescopic end of the electric cylinder 4 to perform the bending operation. Meanwhile, the electric air pump 5 delivers gas to the airbag 24 through its outlet end, causing the airbag 24 to inflate rapidly. The protective layer 25 on the outside of the airbag 24 fits tightly against the inner wall of the pipe. During this process, the silicone material... The movable groove 26 can protect the surface of the airbag 24, preventing sharp debris from scratching it and causing leakage. At the same time, the several movable grooves 26 on the surface of the protective layer 25 give the protective layer 25 good ductility and better adapt to the angle changes of pipe bending. After the pipe bending operation is completed, the tapered plug 273 can be unscrewed to separate the tapered plug 273 from the plug sleeve 271, and the exhaust pipe 28 can be exposed to deflate the airbag 24. Only then can the airbag 24 be pulled out of the pipe for convenient use next time.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A deformation prevention device for a bending process of a tube bending machine, comprising a support plate (1), characterized in that: The upper surface of the support plate (1) is slidably connected with a deformation prevention support assembly (2); The deformation prevention support assembly (2) comprises a moving table (21), one side of the upper surface of the moving table (21) is fixedly connected with a pipe clamp (22), the other side of the upper surface of the moving table (21) is fixedly connected with a connecting box (23), the middle part of the connecting box (23) is provided with an air bag (24), the outer side of the air bag (24) is fixedly connected with a protective layer (25), the outer side of the protective layer (25) is provided with a movable groove (26), and the front end of the movable groove (26) is provided with an easy plugging mechanism (27).
2. A bend prevention device for a tube bending process of a tube bender according to claim 1, characterized in that: The easy plugging mechanism (27) comprises a plugging sleeve (271), the plugging sleeve (271) is adhesively fixed at the front end of the air bag (24), the front end of the inner side of the plugging sleeve (271) is threadedly connected with a threaded pipe (272), the front end of the threaded pipe (272) is fixedly connected with a tapered plug (273), and the outer side of the tapered plug (273) is provided with an anti-skid groove (274).
3. A tube bending process anti-deformation device of a tube bender according to claim 2, characterized in that: The inside of the tapered plug (273) is a cavity structure, the outer side of the tapered plug (273) and the outer side of the plugging sleeve (271) jointly form a continuous arc structure, and the number of the anti-skid grooves (274) is several, and the anti-skid grooves (274) extend to one end close to the plugging sleeve (271).
4. A bend prevention device for a tube bending process of a tube bender according to claim 2, characterized in that: The middle part of the front end of the air bag (24) is fixedly connected with an exhaust pipe (28), the inner side of the exhaust pipe (28) is in communication with the inner side of the air bag (24), the front end of the exhaust pipe (28) is threadedly connected with an air valve (29), and the air valve (29) is located in the inside of the tapered plug (273).
5. A bend prevention device for a tube bending process of a tube bender according to claim 1, characterized in that: One side of the upper surface of the support plate (1) is provided with a bent pipe mechanism (3), the other side of the upper surface of the support plate (1) is fixedly connected with an electric cylinder (4), the electric cylinder (4) and the moving table (21) are parallel to each other, and the telescopic end of the electric cylinder (4) is fixedly connected with the center of the rear end of the connecting box (23).
6. A bend prevention device for a tube bending process of a tube bender according to claim 1, characterized in that: There is a gap between the outer side of the protective layer (25) and the inner side of the pipe clamp (22), the number of the movable grooves (26) provided on the outer side of the protective layer (25) is several, and the several movable grooves (26) are equidistantly arranged in linear arrangement.
7. A bend prevention device for a tube bending process of a tube bender according to claim 1, characterized in that: The inside of the connecting box (23) is a cavity structure, one side of the inside of the connecting box (23) close to the air bag (24) is fixedly connected with an electric air pump (5), and the air outlet end of the electric air pump (5) is in communication with the inner side of the air bag (24).