A stainless steel pipe bending positioning device

By using a ring-shaped clamping structure and pressure roller linkage, the problem of stainless steel pipe bending and positioning is solved, and the precise positioning and efficient processing of stainless steel pipes during the bending process is achieved.

CN224333167UActive Publication Date: 2026-06-09FOSHAN SHENGSHI FUBANG STAINLESS STEEL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN SHENGSHI FUBANG STAINLESS STEEL CO LTD
Filing Date
2025-07-22
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The lack of precise positioning during the bending process of stainless steel pipes leads to slippage and affects processing accuracy and efficiency.

Method used

The device employs a ring-type clamping structure, which forms an adaptive rigid locking mechanism through a hanging plate, a buckle, and a threaded drive pressure shaft. Combined with the movement of the pressure roller along the arc-shaped disc groove of the bending section, it achieves stable bending of the pipe.

Benefits of technology

This ensures that the stainless steel pipes do not shift during bending, achieving a precise bending angle of up to 180°, thus improving processing consistency and accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the technical field of pipe bending devices, and more particularly to a stainless steel pipe bending and positioning device, including a bending part, which includes an arc-shaped disc. A hand handle is connected to the right side of the arc-shaped disc, and a positioning part is provided on the right side of the bottom end of the arc-shaped disc. A bending pressure part is movably installed on the side of the arc-shaped disc, and the bending pressure part includes an arm plate movably installed on the outer side of the side shaft end of the arc-shaped disc. A movable block is movably installed at the end of the arm plate, and a top plate is connected to the top of the movable block. This utility model forms an encircling clamping space through the hanging plate, buckle, and threaded pressure shaft in the positioning part. The V-shaped plate end of the pressure shaft can actively press against the pipe surface as it is screwed in with the thread. Combined with the triangular groove design of the buckle to adapt to the shape of the pipe, it directly overcomes the slippage problem caused by the smooth surface of the stainless steel pipe, achieves adaptive rigid locking for different pipe diameters, and ensures that the pipe does not shift during the bending process.
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Description

Technical Field

[0001] This utility model relates to the technical field of pipe bending devices, and in particular to a stainless steel pipe bending and positioning device. Background Technology

[0002] Stainless steel pipes are widely used in various fields such as petroleum, chemical, medical, food, light industry, and machinery instrumentation due to their excellent corrosion resistance and mechanical properties. In practical applications, stainless steel pipes often need to be bent to adapt to various complex working environments and design requirements. However, achieving precise positioning and stable clamping during the bending process of stainless steel pipes is a significant technical challenge.

[0003] Traditional stainless steel pipe bending devices have certain shortcomings. Due to the smooth surface of stainless steel pipes, traditional bending devices lack proper positioning of the pipe during bending, causing the pipe to easily slip and shift within the bending groove. This leads to deviations in the bending position, affecting processing accuracy and efficiency. Therefore, a stainless steel pipe bending positioning device is needed to solve these problems. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A stainless steel pipe bending and positioning device includes a bending section, which includes an arc-shaped disc. A hand handle is connected to the right side of the arc-shaped disc. A positioning section is provided on the right side of the bottom end of the arc-shaped disc. A bending pressure section is movably installed on the side of the arc-shaped disc. The bending pressure section includes an arm plate movably installed on the outer side of the side shaft end of the arc-shaped disc. A movable block is movably installed at the end of the arm plate, and a top plate is connected to the top of the movable block. Multiple pressure rollers are movably arranged at the top of the top plate. A movable plate is movably connected to the bottom end of the top plate, and a force rod is inserted and installed at the bottom end of the movable plate.

[0007] Preferably, the right side of the arc-shaped disk is connected to a plate base by screws. The inner wall of the plate base is provided with a rectangular block end, and the rectangular block end is embedded in the groove on the right side of the arc-shaped disk through a groove. By the rectangular block end of the plate base being embedded in the groove on the right side of the arc-shaped disk, the plate base can be positioned to ensure the stability of the plate base during installation.

[0008] Preferably, the inner end face of the movable plate slot is provided with a polygonal block end, and the polygonal block end is inserted into the end face of the force rod. The outer side of the movable plate is provided with a bolt through a threaded hole, and the bolt shaft end is inserted into the positioning hole on the surface of the force rod. The force rod and the movable plate are connected by a plug-in joint, which makes it easy to disassemble and assemble the force rod independently and facilitates the daily storage of the force rod.

[0009] Preferably, the positioning part includes a hanging plate with an L-shaped vertical cross-section. The horizontal end of the hanging plate is adapted to the width of the arc-shaped edge groove. The stainless steel pipe can be lifted by the L-shaped horizontal end of the hanging plate, which facilitates the movement of the stainless steel pipe into the arc-shaped edge groove.

[0010] Preferably, a positioning shaft is connected to the inner side of the hanging plate, and a retaining ring is movably installed on the bottom side of the arm plate. The retaining ring is sleeved on the surface of the positioning shaft through a groove. A rotating cap is threaded on the end surface of the positioning shaft. The retaining ring is rotated and fastened to the side of the hanging plate, so that the positioning shaft is inserted into the groove on the side of the retaining ring, and the rotating cap rotates and moves on the surface of the positioning shaft, controlling the rotating cap to abut against the surface of the retaining ring for locking.

[0011] Preferably, the vertical side of the hanging plate has a groove, and several rubber strips are evenly arranged in the groove. The rubber strips can deform under pressure, so that the rubber strips can wrap around the stainless steel pipe to form a certain degree of protection.

[0012] Preferably, the inner side of the buckle is designed with a triangular groove, and a pressure shaft is inserted into the center of the bottom end of the buckle through a threaded hole. The pressure shaft consists of a threaded shaft end and a V-shaped plate end, and the V-shaped plate end is recessed into the buckle through the groove. By rotating the threaded shaft of the pressure shaft, the shaft end of the pressure shaft can be moved to push the V-shaped plate end, thereby controlling the V-shaped plate end to limit the movement of stainless steel pipes of various grades.

[0013] This utility model has at least the following beneficial effects:

[0014] 1. The positioning part forms an encircling clamping space through the hanging plate, buckle and threaded pressure shaft. The V-shaped plate end of the pressure shaft can actively press against the pipe surface as the thread is screwed in. Combined with the triangular groove design of the buckle to adapt to the shape of the pipe, it directly overcomes the slippage problem caused by the smooth surface of the stainless steel pipe. It achieves adaptive rigid locking for different pipe diameters, ensuring that the pipe does not shift during bending and eliminating bending position deviation from the root.

[0015] 2. The pressure roller of the bending section moves along the arc-shaped disc groove of the bending section. Through the movable block, top plate and force bar, a linkage pressure mechanism is formed to guide the pipe to bend along the preset path of the arc-shaped disc. Through mechanical constraints, the pipe is forced to deform along a fixed trajectory, achieving a maximum precise bending angle of 180°, which significantly improves the consistency and accuracy of bending processing. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the external structure of a stainless steel pipe bending and positioning device proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the external disassembly structure of a stainless steel pipe bending and positioning device proposed in this utility model.

[0019] Figure 3 This is a three-dimensional disassembly diagram of the bending section in a stainless steel pipe bending and positioning device proposed in this utility model.

[0020] Figure 4 This is a partial disassembly diagram of the positioning part in a stainless steel pipe bending positioning device proposed in this utility model.

[0021] In the diagram: 1. Bending section; 11. Arc-shaped disc; 12. Hand handle; 13. Plate base; 2. Positioning section; 21. Hanging plate; 22. Rubber strip; 23. Turning cap; 24. Positioning shaft; 25. Buckle; 26. Pressure shaft; 3. Pressing bending section; 31. Arm plate; 32. Movable block; 33. Top plate; 34. Pressure roller; 35. Movable plate; 36. Force bar; 37. Bolt. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] Reference Figure 1-4 A stainless steel pipe bending and positioning device includes a bending part 1, which includes an arc-shaped disk 11. A hand handle 12 is connected to the right side of the arc-shaped disk 11. A positioning part 2 is provided on the right side of the bottom end of the arc-shaped disk 11. A bending pressure part 3 is movably installed on the side of the arc-shaped disk 11. The bending pressure part 3 includes an arm plate 31 movably installed on the outer side of the side shaft end of the arc-shaped disk 11. A movable block 32 is movably installed at the end of the arm plate 31. A top plate 33 is connected to the top of the movable block 32. A plurality of pressure rollers 34 are movably provided at the top of the top plate 33. A movable plate 35 is movably connected to the bottom end of the top plate 33. A force rod 36 is inserted and installed at the bottom end of the movable plate 35.

[0024] A plate base 13 is connected to the right side of the arc-shaped disk 11 by screws. The inner wall of the plate base 13 is provided with a rectangular block end, and the rectangular block end is embedded in the groove on the right side of the arc-shaped disk 11 through a groove.

[0025] The inner end face of the slot of the movable plate 35 is provided with a polygonal block end, and the polygonal block end is inserted into the end face of the force rod 36. The outer side of the movable plate 35 is provided with a bolt 37 through a threaded hole, and the shaft end of the bolt 37 is inserted into the positioning hole on the surface of the force rod 36.

[0026] The positioning part 2 includes a hanging plate 21. The vertical section of the hanging plate 21 is L-shaped, and the horizontal end of the hanging plate 21 is adapted to the width of the side groove of the arc-shaped plate 11.

[0027] The inner side of the mounting plate 21 is connected to the positioning shaft 24, and the bottom edge of the arm plate 31 is movably installed with a buckle 25, which is sleeved on the surface of the positioning shaft 24 through a groove. The end surface of the positioning shaft 24 is threaded with a screw cap 23.

[0028] The vertical side of the hanging plate 21 has a groove, and several rubber strips 22 are evenly arranged in the groove.

[0029] The rectangular block end of the plate base 13 is embedded into the groove on the right side of the arc-shaped plate 11, which can position the plate base 13 and ensure the stability of the plate base 13 when installed. The plate base 13 is fixed to the side of the table, which can facilitate the suspension and upright placement of the arc-shaped plate 11. The force rod 36 and the movable plate 35 are connected by a plug-in joint, which can facilitate the independent assembly and disassembly of the force rod 36 and facilitate the daily storage of the force rod 36. After the bolt 37 is rotated and moved, the shaft end of the bolt 37 can be inserted into the positioning hole of the force rod 36 for positioning. At the same time, the polygonal block end of the inner wall of the slot of the movable plate 35 is embedded in the groove on the end face of the force rod 36, which can position the force rod 36 and prevent the force rod 36 from rotating in the movable plate 35.

[0030] The stainless steel pipe can be lifted by the L-shaped horizontal plate end of the hanging plate 21, which facilitates the movement of the stainless steel pipe into the side groove of the arc-shaped plate 11. The buckle 25 is rotated and fastened to the side of the hanging plate 21, so that the positioning shaft 24 is inserted into the side groove of the buckle 25, and the rotating cap 23 rotates and moves on the surface of the positioning shaft 24. The rotating cap 23 is controlled to abut against the surface of the buckle 25 to lock it, and the buckle 25 can prevent the stainless steel pipe from slipping and falling.

[0031] When the stainless steel pipe is fixed between the hanging plate 21 and the buckle 25, the rubber strip 22 can deform under pressure, thus wrapping the stainless steel pipe and providing a certain degree of protection, preventing wear during bending. The buckle 25 has a triangular groove design on its inner side, and a pressure shaft 26 is inserted into the center of the bottom of the buckle 25 through a threaded hole. The pressure shaft 26 consists of a threaded shaft end and a V-shaped plate end, with the V-shaped plate end retracting into the buckle 25 through the groove. The triangular groove design of the buckle 25 can easily adapt to the rounded shape of the stainless steel pipe. By rotating the threaded shaft of the pressure shaft 26, the shaft end of the pressure shaft 26 can move and push the V-shaped plate end, controlling the V-shaped plate end to limit the movement of various types of stainless steel pipes, thereby improving the practicality of the device.

[0032] Working principle: According to the appendix Figure 2 With appendix Figure 4 As shown, during use, the buckle 25 can be rotated to fasten the buckle 25 onto the surface of the hanging plate 21. The groove on the side of the buckle 25 is fitted onto the surface of the positioning shaft 24. After the nut 23 rotates on the surface of the positioning shaft 24, it abuts against the outside of the buckle 25 to lock and fix the buckle 25. The stainless steel pipe is inserted into the groove of the hanging plate 21. After the bending position is determined, the shaft end of the pressure shaft 26 rotates and moves upward to push the V-shaped plate end above. The pressure shaft 26 is controlled to squeeze the stainless steel pipe to ensure the stability of the pipe when bending.

[0033] Secondly, according to the appendix Figure 2 With appendix Figure 3 As shown, the lever 36 is inserted into the slot of the movable plate 35 and locked in place by the bolt 37. By moving the lever 36, the lever 36 can drive the movable plate 35 to move. The movement of the movable plate 35 applies pressure to the top plate 33, causing the top plate 33 to drive the pressure roller 34 to move. The pressure roller 34 moves along with the top plate 33 to apply pressure to the stainless steel pipe. The stainless steel pipe is pressed by the pressure roller 34 and moves along the side groove of the arc-shaped plate 11 to form a curved surface with a maximum bending angle of 180°. When the arc-shaped plate 11 is placed, the plate base 13 can be fixed to the surface of the processing table by screws, thereby realizing the suspension and upright placement of the arc-shaped plate 11.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A stainless steel pipe bending and positioning device, characterized in that, The device includes a bending section (1), which includes an arc-shaped disk (11). A hand handle (12) is connected to the right side of the arc-shaped disk (11). A positioning section (2) is provided on the right side of the bottom end of the arc-shaped disk (11). A bending section (3) is movably installed on the side of the arc-shaped disk (11). The bending section (3) includes an arm plate (31) movably installed on the outer side of the side shaft end of the arc-shaped disk (11). A movable block (32) is movably installed at the end of the arm plate (31). A top plate (33) is connected to the top of the movable block (32). Multiple pressure rollers (34) are movably provided at the top of the top plate (33). A movable plate (35) is movably connected to the bottom end of the top plate (33). A force rod (36) is inserted and installed at the bottom end of the movable plate (35).

2. The stainless steel pipe bending and positioning device according to claim 1, characterized in that, The right side of the arc-shaped disk (11) is connected to a plate base (13) by screws. The inner wall of the plate base (13) is provided with a rectangular block end, and the rectangular block end is embedded in the groove on the right side of the arc-shaped disk (11) through a groove.

3. The stainless steel pipe bending and positioning device according to claim 1, characterized in that, The inner end face of the slot of the movable plate (35) is provided with a polygonal block end, and the polygonal block end is inserted into the end face of the force rod (36). The outer side of the movable plate (35) is provided with a bolt (37) through a threaded hole, and the shaft end of the bolt (37) is inserted into the positioning hole on the surface of the force rod (36).

4. The stainless steel pipe bending and positioning device according to claim 1, characterized in that, The positioning part (2) includes a hanging plate (21), the vertical section of the hanging plate (21) is L-shaped, and the horizontal end of the hanging plate (21) is adapted to the width of the side groove of the arc-shaped disk (11).

5. A stainless steel pipe bending and positioning device according to claim 4, characterized in that, The inner side of the hanging plate (21) is connected to a positioning shaft (24), and a buckle (25) is movably installed on the bottom side of the arm plate (31). The buckle (25) is sleeved on the surface of the positioning shaft (24) through a groove, and a screw cap (23) is threaded on the end surface of the positioning shaft (24).

6. A stainless steel pipe bending and positioning device according to claim 5, characterized in that, The hanging plate (21) has a groove on its vertical side, and several rubber strips (22) are evenly arranged in the groove.

7. A stainless steel pipe bending and positioning device according to claim 5, characterized in that, The inner side of the buckle (25) is designed with a triangular groove. A pressure shaft (26) is inserted into the center of the bottom end of the buckle (25) through a threaded hole. The pressure shaft (26) is composed of a threaded shaft end and a V-shaped plate end, and the V-shaped plate end is recessed into the buckle (25) through a groove.