Seamless stainless steel pipe bending device

Abstract

The utility model relates to a seamless stainless steel pipe bending device, and aims to provide a pipe bending technical scheme which is simple in structure and convenient to operate. The device mainly comprises an I-shaped fixing seat, an air cylinder, a semicircular bending wheel and a limiting block. The I-shaped fixing base is composed of a workbench, a bottom face and a supporting rod and provides stable supporting. The air cylinder is used for controlling the stop block to move, and rapid extrusion bending is achieved. The semicircular bending wheels are provided with arc-shaped inner grooves, so that a plurality of steel pipes can be bent at the same time; and the symmetry and balance of the steel pipe in the bending process are ensured through the limiting blocks. The device is simple in structure and easy to manufacture and maintain, and the production efficiency and the product quality are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of manufacturing and processing of metal pipes, in particular to a seamless stainless steel pipe bending device. BACKGROUND

[0002] In the traditional process of bending seamless stainless steel pipes, manual or semi-automatic mechanical devices are usually used for operation. These devices can only bend a single steel pipe, which is low in efficiency and requires high skills of the operator. In addition, due to the limitations of manual operation, the precision and consistency of the bent pipe are difficult to guarantee, which is prone to produce unqualified products and increases the production cost. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to provide a seamless stainless steel pipe bending device with simple structure, convenient operation and the ability to fix and process multiple seamless stainless steel pipes at the same time. To achieve the above purpose, the present application provides the following technical solution: a seamless stainless steel pipe bending device, comprising:

[0004] The fixing seat is an I-shaped structure, that is, it is connected by a support rod in the middle of a workbench and a bottom surface which are parallel to each other;

[0005] The gas cylinder is arranged on one side of the workbench, and the end of the telescopic rod of the gas cylinder is threadedly connected with a stop block;

[0006] The bending wheel is semicircular, and the flat surface of the bending wheel is connected to one end of the stop block, and a plurality of parallel arc-shaped inner grooves are arranged on the arc-shaped surface of the bending wheel;

[0007] The limiting block is arranged on the workbench, and two limiting blocks are symmetrically arranged on both sides of the bending wheel, and a plurality of arc-shaped limiting grooves are arranged on the limiting block, which correspond to the arc-shaped inner grooves one by one.

[0008] Preferably, the workbench is stepped, that is, it is composed of a first platform and a second platform with different heights, the height of the first platform is lower than that of the second platform, the gas cylinder is installed on the first platform, and the bending wheel is located on the second platform.

[0009] Preferably, the limiting block is detachably connected with the workbench.

[0010] Preferably, the limiting block further comprises a threaded rod and a mounting hole, the limiting block has a through hole, the mounting hole is arranged on the second platform, the threaded rod is threadedly connected with the mounting hole, and the through hole of the limiting block is sleeved on the threaded rod.

[0011] The preferred technical scheme further comprises a guide rail and a sliding groove, the guide rail is arranged on the second table top and is arranged in parallel with the telescopic rod of the air cylinder, the sliding groove is arranged on the bending wheel, the guide rail and the sliding groove are arranged in pairs, and the sliding groove is matched with the guide rail.

[0012] The preferred technical scheme further comprises two guide rails arranged in parallel with the telescopic rod of the air cylinder on the second table top.

[0013] The preferred technical scheme further comprises a fixing strip, the fixing strip is hingedly connected with the middle part of the arc-shaped surface of the bending wheel, and a plurality of concave surfaces corresponding to the arc-shaped inner grooves are arranged on the fixing strip.

[0014] The preferred technical scheme further comprises a limiting buckle, the limiting buckle is arranged on the bending wheel and is matched with the fixing strip.

[0015] The preferred technical scheme further comprises a limiting buckle, the limiting buckle is arranged on the bending wheel and is matched with the fixing strip.

[0016] The preferred technical scheme further comprises a placing disc, one end of the placing disc is connected with the supporting rod.

[0017] Compared with the prior art, the beneficial effects of the present application are:

[0018] The seamless stainless steel pipe bending device provided by the present application has the advantages of simple structure, easy manufacturing, convenient installation and maintenance, and stable support structure provided by the I-shaped fixed seat, which enhances the stability and carrying capacity of the whole device, so that the steel pipe is not easy to deviate or vibrate during bending. The setting of the air cylinder simplifies the operation process, and the movement of the stop block is controlled by the telescopic rod of the air cylinder, so that the steel pipe is quickly extruded and bent by the bending wheel, thereby improving the efficiency of the pipe bending operation. The design of the semicircular bending wheel enables the steel pipe to be uniformly stressed during bending, reduces stress concentration, and improves the precision and quality of the bent pipe. The multiple arc-shaped inner grooves on the bending wheel help to bend multiple stainless steel pipes at the same time, improving efficiency. The limiting blocks are symmetrically arranged on both sides of the bending wheel, which ensures the symmetry and balance of the steel pipe during bending, and avoids deformation of the pipe caused by asymmetric stress. In summary, the seamless stainless steel pipe bending device of the present application has obvious positive effects in improving production efficiency, reducing production cost and improving product quality. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The present application provides a seamless stainless steel pipe bending device, which has the advantages of simple structure, easy manufacturing, convenient installation and maintenance, and stable support structure provided by the I-shaped fixed seat, which enhances the stability and carrying capacity of the whole device, so that the steel pipe is not easy to deviate or vibrate during bending. The setting of the air cylinder simplifies the operation process, and the movement of the stop block is controlled by the telescopic rod of the air cylinder, so that the steel pipe is quickly extruded and bent by the bending wheel, thereby improving the efficiency of the pipe bending operation. The design of the semicircular bending wheel enables the steel pipe to be uniformly stressed during bending, reduces stress concentration, and improves the precision and quality of the bent pipe. The multiple arc-shaped inner grooves on the bending wheel help to bend multiple stainless steel pipes at the same time, improving efficiency. The limiting blocks are symmetrically arranged on both sides of the bending wheel, which ensures the symmetry and balance of the steel pipe during bending, and avoids deformation of the pipe caused by asymmetric stress. In summary, the seamless stainless steel pipe bending device of the present application has obvious positive effects in improving production efficiency, reducing production cost and improving product quality.

[0020] Figure 2 The present application provides a seamless stainless steel pipe bending device, which has the advantages of simple structure, easy manufacturing, convenient installation and maintenance, and stable support structure provided by the I-shaped fixed seat, which enhances the stability and carrying capacity of the whole device, so that the steel pipe is not easy to deviate or vibrate during bending. The setting of the air cylinder simplifies the operation process, and the movement of the stop block is controlled by the telescopic rod of the air cylinder, so that the steel pipe is quickly extruded and bent by the bending wheel, thereby improving the efficiency of the pipe bending operation. The design of the semicircular bending wheel enables the steel pipe to be uniformly stressed during bending, reduces stress concentration, and improves the precision and quality of the bent pipe. The multiple arc-shaped inner grooves on the bending wheel help to bend multiple stainless steel pipes at the same time, improving efficiency. The limiting blocks are symmetrically arranged on both sides of the bending wheel, which ensures the symmetry and balance of the steel pipe during bending, and avoids deformation of the pipe caused by asymmetric stress. In summary, the seamless stainless steel pipe bending device of the present application has obvious positive effects in improving production efficiency, reducing production cost and improving product quality.

[0021] Figure 3 This is a three-dimensional schematic diagram from another perspective of a seamless stainless steel pipe bending device proposed in the embodiments of this application.

[0022] Figure 4 for Figure 1 Enlarged view of A in the middle;

[0023] In the diagram: 1. Fixed base; 2. Workbench; 3. Bottom surface; 4. Support rod; 5. Cylinder; 6. Stop block; 7. Bending wheel; 8. Arc-shaped inner groove; 9. Limiting block; 10. Arc-shaped limiting groove; 11. First table surface; 12. Second table surface; 13. Screw; 14. Mounting hole; 15. Guide rail; 16. Slide groove; 17. Fixing strip; 18. Limiting buckle; 19. Placement tray. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] It should be noted that in the description of this application, the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0026] Furthermore, it should be understood that, for ease of description, the dimensions of the various components shown in the accompanying drawings are not drawn to actual scale; for example, the thickness or width of some layers may be exaggerated relative to other layers.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined or described in one figure, it will not need to be discussed or described in detail in the description of the subsequent figures.

[0028] In order to solve the technical problems in the background art, such as Figures 1-4 As shown, this application provides a technical solution: a seamless stainless steel pipe bending device, characterized as follows:

[0029] The fixed seat 1 adopts an I-shaped structure, which is connected by a workbench 2 and a bottom surface 3 through a middle support rod 4. The workbench 2 and the bottom surface 3 are both solid steel structures, and the support rod 4 is made of high-strength steel material, which ensures the stability and carrying capacity of the entire fixed seat 1. The fixed seat 1 is fixed on the ground or rack through bolts, which ensures that it will not displace during the bending process of the steel pipe. A gas cylinder 5 is arranged on one side of the workbench 2, which is used to push the stop block 6 and then push the bending wheel 7 to extrude the steel pipe. The end of the telescopic rod of the gas cylinder 5 is connected with the stop block 6 through threads, which realizes the accurate movement of the stop block 6. The bending wheel 7 is a semicircular structure, and its plane is connected to one end of the stop block 6. The arc surface of the bending wheel 7 is used to contact and bend the steel pipe. The bending wheel 7 is made of high-strength alloy steel to ensure its wear resistance and strength. A plurality of arc-shaped inner grooves 8 are arranged on the semicircular arc surface, which are used to accommodate the steel pipe to increase the contact area with the steel pipe and improve the bending efficiency. Limiting blocks 9 are arranged on the workbench 2, and two limiting blocks 9 are symmetrically arranged on both sides of the bending wheel 7, which are used to limit the movement of the steel pipe during the bending process and ensure the bending accuracy. A plurality of arc-shaped limiting grooves 10 are arranged on each limiting block 9, which correspond to the arc-shaped inner grooves 8 on the bending wheel 7 one by one, which ensures the accurate positioning of the steel pipe during the bending process.

[0030] In use, the seamless stainless steel pipe to be bent is placed on the workbench 2. Specifically, the steel pipe is located between the bending wheel 7 and the two limiting blocks 9, with the steel pipe in the middle, the bending wheel 7 on one side of the steel pipe, and the limiting blocks 9 on the other side. The middle part of the steel pipe is close to the bending wheel 7, and the two ends are in contact with the two limiting blocks 9. The steel pipe falls into the arc-shaped inner grooves 8 and the arc-shaped limiting grooves 10. By the extension and retraction of the gas cylinder 5, the stop block 6 moves to drive the bending wheel 7 to move towards the limiting block 9, forming extrusion to the steel pipe, so that the steel pipe is bent between the arc surface of the bending wheel 7 and the arc-shaped limiting groove 10 of the limiting block 9. After bending is completed, the gas cylinder 5 is retracted, the bending wheel 7 releases the steel pipe, and the entire bending process is completed.

[0031] Further, the workbench 2 is composed of two platforms with different heights, i.e. a first table 11 and a second table 12. The height of the first table 11 is lower than that of the second table 12. Both the first table 11 and the second table 12 are made of solid steel, and the surface is treated to increase wear resistance and slip resistance. The gas cylinder 5 is installed on the lower first table 11. The bending wheel 7 is located on the higher second table 12. The power of the bending wheel 7 comes from the telescopic rod of the gas cylinder 5. The higher second table 12 is beneficial to the middle position of the telescopic rod acting on the bending wheel 7, realizing uniform distribution of force. The bending wheel 7 is fixed on the second table 12 through a support structure, which ensures the stability and accuracy during the bending process.

[0032] It should be noted that the limiting block 9 of the seamless stainless steel pipe bending device is detachably connected to the worktable 2, a design that provides greater flexibility and convenience. The connection between the limiting block 9 and the worktable 2 employs a quick-release mechanism, such as using bolts, clips, or a dedicated quick-release device. This design allows the operator to quickly change or adjust the position of the limiting block 9 as needed to accommodate the bending requirements of steel pipes of different diameters or shapes.

[0033] It is worth noting that the seamless stainless steel pipe bending device further includes a screw 13 and a mounting hole 14 to enable rapid adjustment and fixation of the limiting block 9. The screw 13 is a threaded rod used to adjust the position of the limiting block 9. The mounting hole 14 is a threaded hole on the second platform 12 for threaded connection of the screw 13. The mounting hole 14 can be configured in multiple positions as needed. The limiting block 9 is designed as a cylindrical structure with a through hole whose diameter matches the diameter of the screw 13, allowing the screw 13 to pass through the through hole of the limiting block 9. The screw 13 is first threadedly connected to the mounting hole 14, and then the through hole of the limiting block 9 is fitted onto the screw 13, thereby achieving fixation and position adjustment of the limiting block 9 on the screw 13. During pipe bending, the limiting block 9 can rotate on the screw 13, and the steel pipe and the limiting block 9 experience rolling friction.

[0034] Furthermore, the seamless stainless steel pipe bending device includes a guide rail 15 and a slide rail 16 to achieve smooth movement and precise positioning of the bending wheel 7. The guide rail 15 is mounted on the second platform 12 and is parallel to the telescopic rod of the cylinder 5, guiding the movement of the bending wheel 7 and ensuring its smooth movement. The slide rail 16 is mounted on the bending wheel 7, paired with the guide rail 15, and is adapted to ensure that the bending wheel 7 can slide smoothly on the guide rail 15. The guide rail 15 is made of high-strength steel or alloy, and its surface is hardened to improve wear resistance and extend service life. The slide rail 16 is designed as a straight groove that matches the shape and size of the guide rail 15, designed according to the movement trajectory of the bending wheel 7.

[0035] It should be noted that by arranging two guide rails 15 parallel to the axial direction of the telescopic rod of the cylinder 5 on the second platform 12, the stable and precise movement of the bending wheel 7 is achieved. The arrangement of two guide rails 15 parallel to the axial direction of the telescopic rod of the cylinder 5 on the second platform 12 improves the stability during the pipe bending process.

[0036] Further, the fixed strip 17 is connected to the middle part of the arc surface of the bending wheel 7 through a hinged connection, which allows the fixed strip 17 to maintain stable contact with the steel pipe and prevent the steel pipe from falling before or during bending. The fixed strip 17 is provided with a plurality of concave surfaces corresponding to the arc-shaped inner grooves 8, which match the arc-shaped inner grooves 8 on the bending wheel 7 to provide additional support and positioning for the steel pipe. The fixed strip 17 is connected to the bending wheel 7 through a hinged structure, which facilitates opening and closing when replacing the steel pipe.

[0037] It is worth noting that the limiting buckle 18 is a component provided on the bending wheel 7, which mainly functions to adapt to the fixed strip 17 and ensure accurate positioning of the fixed strip 17 on the bending wheel 7. The limiting buckle 18 can be a metal slot or clip designed to tightly fit the shape and size of the fixed strip 17 to fix and limit it.

[0038] It is worth noting that, as shown in the figure, the limiting buckle 18 is an S-shaped card located on both sides of the bottom of the fixed strip 17. The S-shaped design makes the fixed strip 17 have a guiding face. As long as the fixed strip 17 is pressed into the two limiting buckles 18, it can be fixed.

[0039] It is worth noting that the placing disc 19 is a flat or slightly inclined platform for placing the steel pipe to be bent or the steel pipe after bending. One end of the placing disc 19 is connected to the support rod 4, which allows the placing disc 19 to be stably fixed on the fixed seat 1 and can be adjusted in position as needed. The placing disc 19 is connected to the support rod 4 through welding, bolt connection or other mechanical connection methods to ensure the stability and reliability of the connection.

[0040] Although embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seamless stainless steel pipe bending device, characterized in that, include: Fixed base (1), the fixed base (1) is I-shaped, that is, it is formed by connecting the parallel worktable (2) and the bottom surface (3) through the middle support rod (4); Cylinder (5), the cylinder (5) is located on one side of the workbench (2), and the end of the telescopic rod of the cylinder (5) is threadedly connected to a stop (6); The bending wheel (7) is semi-circular, and the plane of the bending wheel (7) is connected to one end of the stop block (6). Multiple parallel arc-shaped grooves (8) are provided on its arc surface. Limiting block (9), the limiting block (9) is set on the worktable (2), and two limiting blocks (9) are symmetrically arranged on both sides of the bending wheel (7). Multiple arc-shaped limiting grooves (10) are provided on the limiting block (9), and the arc-shaped limiting grooves (10) correspond one-to-one with the arc-shaped inner grooves (8).

2. The seamless stainless steel pipe bending device according to claim 1, characterized in that, The workbench (2) is stepped, consisting of a first tabletop (11) and a second tabletop (12) of different heights. The height of the first tabletop (11) is lower than that of the second tabletop (12). The cylinder (5) is installed on the first tabletop (11), and the bending wheel (7) is located on the second tabletop (12).

3. The seamless stainless steel pipe bending device according to claim 2, characterized in that, The limiting block (9) is detachably connected to the worktable (2).

4. The seamless stainless steel pipe bending device according to claim 3, characterized in that, It also includes a screw (13) and a mounting hole (14). The limiting block (9) has a through hole. The mounting hole (14) is located on the second platform (12). The screw (13) is threadedly connected to the mounting hole (14). The through hole of the limiting block (9) is sleeved on the screw (13).

5. The seamless stainless steel pipe bending device according to claim 2, characterized in that, It also includes a guide rail (15) and a slide groove (16). The guide rail (15) is disposed on the second platform (12) and is parallel to the telescopic rod of the cylinder (5). The slide groove (16) is disposed on the bending wheel (7). The guide rail (15) and the slide groove (16) are arranged in pairs, and the slide groove (16) is adapted to the guide rail (15).

6. The seamless stainless steel pipe bending device according to claim 5, characterized in that, Two guide rails (15) are arranged parallel to each other along the axial direction of the telescopic rod of the cylinder (5) on the second platform (12).

7. The seamless stainless steel pipe bending device according to claim 1, characterized in that, It also includes a fixing strip (17), which is hinged to the middle part of the arc-shaped surface of the bending wheel (7), and the fixing strip (17) is provided with a plurality of concave surfaces corresponding to the arc-shaped inner groove (8).

8. The seamless stainless steel pipe bending device according to claim 7, characterized in that, It also includes a limiting buckle (18), which is disposed on the bending wheel (7) and adapted to the fixing strip (17).

9. The seamless stainless steel pipe bending device according to claim 8, characterized in that, The limiting buckle (18) is S-shaped.

10. The seamless stainless steel pipe bending device according to any one of claims 1-9, characterized in that, It also includes a placement tray (19), one end of which is connected to the support rod (4).

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