A seamless steel pipe bending forming device
By designing an adjustable forming wheel and a seamless steel pipe bending forming device with a flexible metal shaft support structure, the problems of limited functionality and bending deformation of traditional devices have been solved, achieving multi-functionality and improved stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU KAILAI STEEL TUBE CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional seamless steel pipe bending and forming devices cannot adjust the bending radius, resulting in limited functionality and the steel pipe is prone to denting and deformation during the bending process.
A seamless steel pipe bending and forming device was designed. Through an adjustable forming wheel and a metal flexible shaft support structure, it can achieve bending and forming of different radii and provide internal support during the bending process to avoid denting and deformation.
This allows for flexible adjustment of the bending radius according to processing requirements, improving the versatility of the device and ensuring the stability and forming quality of the steel pipe bending process.
Smart Images

Figure CN224389690U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seamless steel pipe processing technology, specifically to a seamless steel pipe bending and forming device. Background Technology
[0002] Seamless steel pipe is a long strip of steel with a hollow cross-section and no seams around its perimeter. It is made from a single piece of metal and has no weld seams on its surface. Due to its unique structural characteristics, it plays a key role in many industrial fields and is an indispensable basic material for industries such as petroleum, chemical, and machinery manufacturing. Seamless steel pipes require forming during processing, thus necessitating the use of bending and forming equipment.
[0003] The "New Seamless Steel Pipe Forming Device" disclosed in publication number "CN217251644U" includes a forming device body and a seamless steel pipe. The forming device body is equipped with a steel pipe forming conveyor, and a forming mold is installed at the outlet end of the steel pipe forming conveyor. A cooling box is provided at the end of the steel pipe forming conveyor near the forming mold. The forming device body is equipped with an installation ring, and installation frames are symmetrically connected to both sides of the installation ring. Fixing frames are symmetrically provided in each of the installation frames, and rollers are inserted in the fixing frames. Guide concave wheels are movably sleeved on the outside of the rollers, and the seamless steel pipe is located between the guide concave wheels. A first limiting friction plate and a second limiting friction plate are evenly provided on the inner side of the installation ring, and the first limiting friction plate and the second limiting friction plate have the same shape and structure.
[0004] Traditional forming devices lack adjustment capabilities, meaning they cannot adjust the bending radius of seamless steel pipes according to processing requirements. This limits the device to bending the pipes to a single radius, resulting in limited functionality and high limitations. Furthermore, the lack of internal support during bending can cause indentation and deformation at the bend. To address these issues, we have designed a seamless steel pipe bending forming device. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a seamless steel pipe bending and forming device, which solves the problem of the lack of adjustment function. The device cannot adjust the bending radius of the seamless steel pipe according to processing requirements, resulting in the device only being able to bend the steel pipe to a single radius during operation. This leads to the device having limited functionality and high limitations. Furthermore, the lack of internal support for the steel pipe during bending causes indentation and deformation at the bending point.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a seamless steel pipe bending and forming device, including a processing table and a feeding rack assembled on the front side of the top of the processing table, and a drive plate assembled at the center of the top of the processing table.
[0007] An adjustment groove is provided on the front side of the top of the processing table. The feeding rack is slidably installed inside the adjustment groove. Hydraulic cylinders are fixedly installed on both sides of the feeding rack. Clamping seats are fixedly installed on the output ends of the hydraulic cylinders. An installation groove is provided at the center of the top of the processing table. A forming wheel is assembled at the center of the top of the processing table. An assembly plate inserted into the installation groove is fixedly installed at the bottom of the forming wheel.
[0008] A drive shaft that rotates inside the processing table is fixedly installed at the bottom of the drive plate. A telescopic plate is slidably installed at one end of the drive plate, and an installation plate is fixedly installed at one end of the telescopic plate. A drive wheel that works with the forming wheel is rotatably installed at the bottom of the installation plate. An installation sleeve is fixedly installed on the back of the installation plate. A telescopic rod is slidably installed inside the installation sleeve. A metal flexible shaft is fixedly connected to the bottom of the telescopic rod. Connecting plates are fixedly installed at equal intervals on the outer wall of the metal flexible shaft. Support rollers are rotatably installed at both ends of the connecting plates.
[0009] Preferably, a threaded rod that is threadedly connected to the feed rack is rotatably mounted inside the adjusting groove, and a rocker arm is fixedly mounted at one end of the threaded rod.
[0010] Preferably, a gear disk is fixedly installed at the bottom of the drive shaft, a drive motor is fixedly installed at the front side of the bottom of the processing table, and a drive gear that meshes with the gear disk is fixedly installed at the output end of the drive motor.
[0011] Preferably, the top of the telescopic plate is provided with locking holes at equal intervals, and a locking pin is movably installed at one end of the top of the drive plate and inserted into the locking hole.
[0012] Preferably, a sliding plate is fixedly installed inside the adjustment groove, and limiting grooves that cooperate with the sliding plate are opened on the front and back of the feed rack.
[0013] Preferably, leg supports are fixedly installed around the bottom of the processing table, and foot plates are fixedly installed at the bottom of each leg support.
[0014] This invention provides a seamless steel pipe bending and forming device. Compared with the prior art, it has the following advantages:
[0015] (1) The seamless steel pipe bending and forming device can quickly install and disassemble the forming wheel through the cooperation of the mounting groove and the assembly plate, which makes it convenient for the staff to replace the forming wheel according to the processing requirements of the seamless steel pipe, so that the device can bend the steel pipe to different radii and reduce the limitations of use.
[0016] (2) By combining the metal flexible shaft and the support roller, the internal part of the steel pipe can be supported during the bending process of the steel pipe, thereby avoiding the denting and deformation that occurs during the bending process of the steel pipe, ensuring the stability of the steel pipe during bending, and improving the quality of processing and forming. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0018] Figure 2 This is a schematic diagram of the processing table structure of this utility model.
[0019] Figure 3 This is a schematic diagram of the different radii of the forming wheel structure of this utility model.
[0020] Figure 4 This is a schematic diagram of the drive board structure of this utility model.
[0021] Figure 5 This is a schematic diagram of the telescopic plate structure of this utility model.
[0022] Figure 6 This is a schematic diagram of the feeding rack structure of this utility model.
[0023] Figure 7 This is a schematic diagram of the metal flexible shaft structure of this utility model.
[0024] Figure 8 This is a schematic diagram of the drive motor structure of this utility model.
[0025] Figure 9 This is a schematic diagram of the working structure of the support roller of this utility model.
[0026] In the diagram: 1. Processing table; 101. Mounting slot; 102. Adjustment slot; 103. Slide plate; 104. Threaded rod; 105. Rocker arm; 106. Leg bracket; 107. Foot plate; 2. Feed rack; 201. Limiting slot; 202. Hydraulic cylinder; 203. Clamping seat; 3. Drive plate; 301. Mounting plate; 302. Drive wheel; 303. Telescopic plate; 304. Locking hole; 305. Locking pin; 306. Gear disk; 307. Drive shaft; 4. Mounting sleeve; 401. Telescopic rod; 402. Metal flexible shaft; 403. Support roller; 404. Connecting plate; 5. Forming wheel; 501. Assembly plate; 6. Drive motor; 601. Drive gear. Detailed Implementation
[0027] 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 scope of protection of the present utility model.
[0028] Example 1
[0029] Please see Figure 1-9 As shown, this embodiment proposes a seamless steel pipe bending and forming device, including a processing table 1 and a feeding rack 2 mounted on the front side of the top of the processing table 1, and a drive plate 3 mounted at the center of the top of the processing table 1. An adjustment groove 102 is provided on the front side of the top of the processing table 1. The feeding rack 2 is slidably installed inside the adjustment groove 102. Hydraulic cylinders 202 are fixedly installed on both sides of the feeding rack 2. Clamping seats 203 are fixedly installed at the output ends of the hydraulic cylinders 202. An installation groove 101 is provided at the center of the top of the processing table 1. A forming wheel 5 is mounted at the center of the top of the processing table 1. An assembly plate 501 inserted into the installation groove 101 is fixedly installed at the bottom of the forming wheel 5. A drive shaft 307 rotating inside the processing table 1 is fixedly installed at the bottom of the drive plate 3. A telescopic plate 303 is slidably installed at one end of the drive plate 3. An installation plate 301 is fixedly installed at one end of the telescopic plate 303. A drive wheel 302 that cooperates with the forming wheel 5 is rotatably installed at the bottom of the installation plate 301.
[0030] In use, the steel pipe enters the top of the processing table 1 through the feed rack 2. The mounting plate 501 at the bottom of the forming wheel 5 is inserted into the mounting slot 101, allowing for quick installation and removal of the forming wheel 5 via the mounting plate 501 and the mounting slot 101. When the steel pipe enters the top of the processing table 1 through the feed rack 2, one end of its outer wall abuts against the forming wheel 5. The drive plate 3 is rotatably mounted at the center of the top of the processing table 1 via the drive shaft 307. A drive wheel 302 is rotatably mounted on the bottom of the mounting plate 301 at one end of the drive plate 3. When the drive plate 3 rotates around the drive shaft 307, it can move the drive wheel 302 clockwise in a circular motion. When the moving wheel 302 moves in a circular motion, it can drive the steel pipe to deform, and the steel pipe will bend around the forming wheel 5, thereby bending and forming the steel pipe. At the same time, the forming wheel 5 of different radii can be replaced according to the forming requirements of the steel pipe. After the forming wheel 5 of different radii is replaced, the feeding rack 2 also moves and adjusts within the adjusting groove 102. The feeding rack 2 moves to the position corresponding to the forming wheel 5, and the hydraulic cylinders 202 on both sides of the feeding rack 2 extend to push the clamping seat 203, thereby clamping and fixing the steel pipe inside the feeding rack 2 through the clamping seat 203, ensuring the stability of the device when bending and forming the steel pipe.
[0031] Example 2
[0032] Based on Example 1, such as Figure 4 and Figure 7 As shown, an mounting sleeve 4 is fixedly mounted on the back of the mounting plate 301. A telescopic rod 401 is slidably mounted inside the mounting sleeve 4. A metal flexible shaft 402 is fixedly connected to the bottom of the telescopic rod 401. A connecting plate 404 is fixedly mounted at equal intervals on the outer wall of the metal flexible shaft 402. Support rollers 403 are rotatably mounted on both ends of the connecting plate 404.
[0033] In use, the mounting sleeve 4 is fixedly installed on the back of the mounting plate 301, and the telescopic rod 401 is slidably installed inside the mounting sleeve 4, thereby facilitating the telescopic rod 401 to extend and retract within the mounting sleeve 4. Before the device bends the steel pipe, the metal flexible shaft 402 is inserted into it, and the support roller 403 rotatably installed on the connecting plate 404 provides rolling support to the inner wall of the steel pipe. Thus, the support roller 403 can provide auxiliary support inside the device when bending the steel pipe. The auxiliary support of the support roller 403 can prevent the bending point from denting and deforming when the device bends the steel pipe, increasing the functionality of the device and improving the stability when bending the steel pipe.
[0034] like Figure 6 As shown, a threaded rod 104 that is threadedly connected to the feed rack 2 is rotatably installed inside the adjusting groove 102, and a rocker arm 105 is fixedly installed at one end of the threaded rod 104.
[0035] In use, the threaded rod 104 is threadedly connected to the bottom of the feed rack 2. The feed rack 2 can be adjusted left and right by rotating the threaded rod 104. The rocker arm 105 makes it convenient for the operator to rotate the threaded rod 104, thereby facilitating the operator to adjust and control the feed rack 2.
[0036] like Figure 8 As shown, a gear disk 306 is fixedly installed at the bottom of the drive shaft 307, and a drive motor 6 is fixedly installed at the front side of the bottom of the processing table 1. A drive gear 601 that meshes with the gear disk 306 is fixedly installed at the output end of the drive motor 6.
[0037] In use, the drive gear 601 at the output end of the drive motor 6 meshes with the gear disk 306. The drive motor 6 can drive the drive shaft 307 and the drive plate 3 to rotate through the drive gear 601 and the gear disk 306, thereby facilitating the drive wheel 302 to drive and bend the steel pipe.
[0038] like Figure 5 As shown, the top of the telescopic plate 303 is provided with locking holes 304 at equal intervals, and a locking pin 305 is movably installed at one end of the top of the drive plate 3 and inserted into the locking hole 304.
[0039] When in use, the locking pin 305 can be inserted into the locking hole 304 to lock the telescopic plate 303 when it extends and retracts, thereby ensuring the stability of the mounting plate 301 and drive wheel 302 during operation after adjustment.
[0040] like Figure 2 and Figure 6 As shown, a slide plate 103 is fixedly installed inside the adjustment groove 102, and a limiting groove 201 is opened on the front and back of the feed rack 2 to cooperate with the slide plate 103.
[0041] When in use, the slide plate 103 can be inserted into the limiting groove 201 to limit the feeding rack 2, thus preventing the bottom of the feeding rack 2 from becoming unstable inside the adjusting groove 102 and ensuring the stability of the feeding rack 2 during operation.
[0042] like Figure 2-3 As shown, leg supports 106 are fixedly installed around the bottom of the processing table 1, and foot plates 107 are fixedly installed on the bottom of each leg support 106.
[0043] In use, the leg support 106 can support the bottom of the processing table 1, and the foot plate 107 increases the contact area between the bottom of the leg support 106 and the ground, thereby improving the stability of the leg support 106 when supporting the processing table 1.
[0044] Working principle: Seamless steel pipes enter the top of processing table 1 through feeding rack 2. Forming wheel 5 abuts against the outer wall of the steel pipe entering the top of processing table 1. Drive motor 6 drives drive shaft 307 and drive plate 3 to rotate, which can make drive wheel 302 move clockwise in a circular motion. When drive wheel 302 moves clockwise in a circular motion, it can drive the steel pipe to bend and deform along the outside of forming wheel 5. Assembly plate 501 and mounting groove 101 can quickly install and remove forming wheel 5, which makes it convenient for workers to replace forming wheel 5 of different sizes according to the bending requirements of steel pipe. This allows the device to perform bending and forming operations on steel pipes of different radii. Metal flexible shaft 402 and support roller 403 are inserted into the inside of steel pipe to provide auxiliary support for the inside when the device bends it. By providing auxiliary support for the inside of the steel pipe, the denting deformation during bending can be avoided.
[0045] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.
Claims
1. A seamless steel pipe bending and forming device, characterized in that: It includes a processing table and a feed rack mounted on the front side of the top of the processing table, as well as a drive plate mounted at the center of the top of the processing table; An adjustment groove is provided on the front side of the top of the processing table. The feeding rack is slidably installed inside the adjustment groove. Hydraulic cylinders are fixedly installed on both sides of the feeding rack. Clamping seats are fixedly installed on the output ends of the hydraulic cylinders. An installation groove is provided at the center of the top of the processing table. A forming wheel is assembled at the center of the top of the processing table. An assembly plate inserted into the installation groove is fixedly installed at the bottom of the forming wheel. A drive shaft that rotates inside the processing table is fixedly installed at the bottom of the drive plate. A telescopic plate is slidably installed at one end of the drive plate, and an installation plate is fixedly installed at one end of the telescopic plate. A drive wheel that works with the forming wheel is rotatably installed at the bottom of the installation plate. An installation sleeve is fixedly installed on the back of the installation plate. A telescopic rod is slidably installed inside the installation sleeve. A metal flexible shaft is fixedly connected to the bottom of the telescopic rod. Connecting plates are fixedly installed at equal intervals on the outer wall of the metal flexible shaft. Support rollers are rotatably installed at both ends of the connecting plates.
2. The seamless steel pipe bending and forming device according to claim 1, characterized in that: The adjusting groove is internally fitted with a threaded rod that is threadedly connected to the feed rack, and a rocker arm is fixedly installed at one end of the threaded rod.
3. The seamless steel pipe bending and forming device according to claim 1, characterized in that: A gear disk is fixedly installed at the bottom of the drive shaft, and a drive motor is fixedly installed on the front side of the bottom of the processing table. A drive gear that meshes with the gear disk is fixedly installed at the output end of the drive motor.
4. The seamless steel pipe bending and forming device according to claim 1, characterized in that: The top of the telescopic plate is provided with locking holes at equal intervals, and a locking pin is movably installed at one end of the top of the drive plate and inserted into the locking hole.
5. The seamless steel pipe bending and forming device according to claim 1, characterized in that: A sliding plate is fixedly installed inside the adjustment groove, and limiting grooves that cooperate with the sliding plate are opened on the front and back of the feeding rack.
6. The seamless steel pipe bending and forming device according to claim 1, characterized in that: Leg supports are fixedly installed around the bottom of the processing table, and foot plates are fixedly installed at the bottom of each leg support.