Pipe bending machine for machining automobile seat framework

By introducing components such as a fixed roller, swing arm, and pipe bending seat into the pipe bending machine, it is possible to bend pipes of different diameters. The precise positioning through the graduated ring and groove solves the problems of applicability and inaccurate angle of the existing pipe bending machine, and improves the processing qualification rate.

CN224157571UActive Publication Date: 2026-04-24YANGZHOU WOOD MASCH TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANGZHOU WOOD MASCH TECH CO LTD
Filing Date
2025-05-20
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing pipe bending machines can only bend pipes of a single diameter, which has low applicability. In addition, they lack angle limiting components, resulting in inaccurate bending angles and affecting the processing qualification rate.

Method used

The design incorporates components such as a fixed wheel, swing arm, pipe bend seat, bending groove, adjustment frame, and pressure sensor to achieve pipe bending of different diameters, and precisely limits the bending angle through a graduated ring and a groove.

Benefits of technology

This improves the applicability of the pipe bending machine, enabling it to meet the bending requirements of pipes with different diameters, ensuring the accuracy of the bending angle, and increasing the processing qualification rate.

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Abstract

The utility model discloses a pipe bending machine for machining an automobile seat framework, which comprises a rack, a machine table is fixedly arranged on the rack, a tire fixing wheel is fixedly arranged on the machine table, a rotating pipe is rotatably connected in the machine table, the top end of the rotating pipe extends out of the tire fixing wheel and is fixedly provided with a swing arm, and a pipe bending seat is fixedly arranged in the swing arm and is positioned at the right part of the tire fixing wheel. A plurality of bending grooves with different diameters are sequentially formed in the pipe bending base and the tire fixing wheel from top to bottom, the bottom end of the rotating pipe extends out of the bottom end of the machine table and is fixedly provided with a gear ring, the right portion of the gear ring is connected with a gear in a meshed mode, the portion, located on the outer side of the gear ring, of the bottom end of the machine table is fixedly sleeved with a support, and a transmission rod is rotationally connected into the support. The pipe bending machine for machining the automobile seat framework can meet the pipe bending work of pipes with different diameters, so that the applicability of the pipe bending machine is further improved, meanwhile, the pipe bending angle can be precisely limited in the pipe bending process, and the pipe bending machining qualification rate is further improved.
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Description

Technical Field

[0001] This utility model relates to the field of pipe bending machine technology, specifically a pipe bending machine for processing automobile seat frames. Background Technology

[0002] A pipe bending machine is an industrial equipment specifically designed for bending and shaping metal pipes. Its core function is to achieve precise bending of pipes through mechanical or hydraulic systems. In the production process of automotive seat frames, it is often necessary to bend the steel pipes of the frame.

[0003] A search revealed patent application CN202123073183.4, which discloses a tube bending machine for processing automotive seat frames. The machine includes a pad, a drive chamber, a connecting plate, a movable wheel, a fixed frame, a connecting shaft, a fixed wheel, and a miniature lifting assembly. The pad is symmetrically positioned under the drive chamber, the miniature lifting assembly is located on the side of the drive chamber, the fixed frame is rotatably mounted on the top of the drive chamber, the connecting shaft is located within the fixed frame and connected to the drive chamber, the movable wheel is sleeved on the connecting shaft, the connecting plate is symmetrically sleeved on the connecting shaft and positioned above and below the movable wheel, and the fixed wheel is rotatably mounted on the top of the drive chamber and penetrates the fixed frame. This invention belongs to the field of mechanical equipment technology, specifically referring to a tube bending machine for processing automotive seat frames that uses a miniature lifting assembly to magnetically lift metal tubes, avoiding the need for workers to bend over to pick up the metal tubes.

[0004] However, this patent has its shortcomings. In actual use, this type of pipe bending machine can only bend pipes of a single diameter, resulting in low applicability of the equipment. At the same time, this type of pipe bending machine lacks a component that can limit the bending angle. During the bending process, the operator may cause the moving wheel to rotate excessively, resulting in an excessively large bending angle and affecting the pass rate of pipe bending.

[0005] Therefore, we propose a tube bending machine for processing automotive seat frames. Utility Model Content

[0006] The purpose of this invention is to provide a tube bending machine for processing automotive seat frames, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a tube bending machine for processing automotive seat frames, comprising a frame, a machine base fixedly mounted on the frame, a fixed tire wheel fixedly mounted on the machine base, a rotating tube rotatably connected inside the machine base, the top end of the rotating tube extending out of the fixed tire wheel and fixedly mounted with a swing arm, a tube bending seat fixedly mounted inside the swing arm at the right side of the fixed tire wheel, multiple bending grooves of different diameters arranged sequentially from top to bottom in the tube bending seat and the fixed tire wheel, the bottom end of the rotating tube extending out of the bottom end of the machine base and fixedly mounted with a toothed ring, the toothed ring... The right side of the machine is meshed with a gear. A bracket is fixedly fitted on the bottom of the machine base outside the gear ring. A transmission rod is rotatably connected inside the bracket. The bottom end of the transmission rod extends out of the bottom end of the bracket and is fixedly installed with a gear plate. A gear bar is meshed on the left side of the gear plate. The top end of the transmission rod extends out of the swing arm and is fixedly installed with an adjustment frame. A vertical plate is fixedly installed at the bottom front end of the adjustment frame. A pressure sensor is fixedly installed on the right side of the vertical plate. A scale ring is provided at the top end of the tire wheel. A slot is opened at the front end of the swing arm. An arrow is fixedly installed at the front end of the vertical plate.

[0008] Optionally, a mounting bracket is fixedly installed in the lower part of the gear plate inside the frame, and the bottom end of the gear plate is rotatably connected to the mounting bracket. This design is beneficial to the use of this equipment.

[0009] Optionally, a connecting plate is fixedly installed at the front end of the rack, and a motor is fixedly installed at the bottom end of the mounting bracket. The output end of the motor is fixedly installed on the gear, and the rotation of the gear by the motor is beneficial to the use of this equipment.

[0010] Optionally, a sliding member is fixedly installed at the bottom end of the rack, and a sliding groove is provided on the mounting bracket corresponding to the sliding member. The sliding member is slidably connected in the sliding groove, and the rack can be limited by the sliding member.

[0011] Optionally, a second cylinder is fixedly installed at the rear end of the mounting bracket, and a bracket is fixedly installed on the output end of the second cylinder, which can support the pipe to be bent.

[0012] Optionally, a PLC controller is fixedly installed at the rear end of the mounting bracket on the left side of the second cylinder, so that the device can be easily controlled through the PLC controller.

[0013] Optionally, a first cylinder is fixedly installed at the bottom of the machine base on the left side of the gear ring. The output end of the first cylinder is fixedly installed on the connecting plate. The extension and retraction of the output end of the first cylinder drives the connecting plate to slide, which is beneficial to the use of this equipment.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] Through the coordinated operation of the fixed wheel, swing arm, pipe bending seat, bending groove, adjusting frame, pressure sensor, upright plate, slot, scale ring, gear plate, rack, gear ring, gear, motor, rotating tube, transmission rod, first cylinder, connecting plate, and arrow, the equipment can be used to bend pipes of different diameters, thereby improving its applicability. It can also precisely limit the bending angle during the bending process, further increasing the pass rate of pipe bending. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a tube bending machine for processing automotive seat frames according to this utility model;

[0017] Figure 2 This is a cross-sectional view of a tube bending machine for processing automotive seat frames according to this utility model;

[0018] Figure 3 This is a cross-sectional view of the stationary tire in a tube bending machine for processing automotive seat frames according to this utility model.

[0019] Figure 4 This is a cross-sectional view of the toothed rod in a tube bending machine for processing automotive seat frames according to this utility model.

[0020] In the diagram: 1. Frame; 2. Machine base; 3. Fixed tire wheel; 4. Swing arm; 5. Bending pipe seat; 6. Bending groove; 7. Adjusting frame; 8. Pressure sensor; 9. Slot; 10. Vertical plate; 11. Scale ring; 12. Gear plate; 13. Gear rack; 14. Gear ring; 15. Gear; 16. Motor; 17. Mounting bracket; 18. Rotating tube; 19. Transmission rod; 20. First cylinder; 21. Connecting plate; 22. Sliding component; 23. Slide groove; 24. Arrow; 25. Second cylinder; 26. Bracket; 27. Support; 28. PLC controller. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1 to 4This utility model provides a tube bending machine for processing automotive seat frames, including a frame 1, a machine base 2 fixedly mounted on the frame 1, a fixed tire wheel 3 fixedly mounted on the machine base 2, a rotating tube 18 rotatably connected inside the machine base 2, the top end of the rotating tube 18 extending out of the fixed tire wheel 3 and fixedly mounted with a swing arm 4, a tube bending seat 5 fixedly mounted inside the swing arm 4 at the right side of the fixed tire wheel 3, and multiple bending grooves 6 of different diameters arranged sequentially from top to bottom inside the tube bending seat 5 and the fixed tire wheel 3, the bottom end of the rotating tube 18 extending out of the bottom end of the machine base 2 and fixedly mounted with a gear ring 14, and a gear 15 meshing with the right side of the gear ring 14. A bracket 27 is fixedly fitted on the outside of the gear ring 14 at the bottom of the machine base 2. A transmission rod 19 is rotatably connected inside the bracket 27. The bottom end of the transmission rod 19 extends out of the bottom end of the bracket 27 and is fixedly installed with a gear plate 12. A gear rack 13 is meshed with the left side of the gear plate 12. The top end of the transmission rod 19 extends out of the swing arm 4 and is fixedly installed with an adjustment frame 7. A vertical plate 10 is fixedly installed at the bottom front end of the adjustment frame 7. A pressure sensor 8 is fixedly installed on the right side of the vertical plate 10. A scale ring 11 is provided at the top end of the tire wheel 3. A slot 9 is opened at the front end of the swing arm 4. An arrow 24 is fixedly installed at the front end of the vertical plate 10.

[0023] A mounting bracket 17 is fixedly installed inside the frame 1 at the lower part of the gear disc 12. The bottom end of the gear disc 12 is rotatably connected to the mounting bracket 17. This design facilitates the use of the equipment. A connecting plate 21 is fixedly installed at the front end of the rack 13. A motor 16 is fixedly installed at the bottom end of the mounting bracket 17. The output end of the motor 16 is fixedly installed on the gear 15. The motor 16 drives the gear 15 to rotate, which facilitates the use of the equipment. A sliding member 22 is fixedly installed at the bottom end of the rack 13. A sliding groove 23 is provided on the mounting bracket 17 corresponding to the sliding member 22. The sliding member 22 is slidably connected in the sliding groove 23. The sliding member 22 can rotate the rack. 13 is used for limiting. A second cylinder 25 is fixedly installed at the rear end of the mounting frame 17. A bracket 26 is fixedly installed on the output end of the second cylinder 25. The bracket 26 can support the pipe to be bent. A PLC controller 28 is fixedly installed at the left side of the second cylinder 25 at the rear end of the mounting frame 17. The PLC controller 28 can be used to control the operation of this equipment. A first cylinder 20 is fixedly installed at the bottom end of the machine base 2 on the left side of the gear ring 14. The output end of the first cylinder 20 is fixedly installed on the connecting plate 21. The extension and retraction of the output end of the first cylinder 20 can drive the connecting plate 21 to slide, which is beneficial to the use of this equipment.

[0024] Working principle: In use, open the telescopic switch of the first cylinder 20. The output end of the first cylinder 20 drives the connecting plate 21 and the rack 13 to slide backward. Since the rack 13 is meshed with the gear plate 12, the gear plate 12 drives the transmission rod 19 and the adjusting frame 7 to rotate in a circumferential direction. The deflection angle of the upright plate 10 can be determined according to the position of the arrow 24 on the scale ring 11. Then, open the telescopic switch of the second cylinder 25, so that the output end of the second cylinder 25 drives the bracket 26 to rise to a suitable height. Then, place one end of the pipe to be bent in the bracket 26, and insert the other end into the bending groove 6 of the corresponding diameter on the bending seat 5 and the fixed wheel 3. Finally, turn on the switch of the motor 16. The motor 16 drives the gear 15, the gear ring 14, the rotating tube 18 and the swing arm 4 to rotate. The swing arm 4 drives the bending seat 5 to rotate along the fixed wheel 3. The outer side of the tire 3 rotates in a circumferential direction to bend the pipe. During the rotation of the swing arm 4, when the upright plate 10 is inserted into the slot 9 and the pressure sensor 8 comes into contact with the inner wall of the slot 9, the pressure sensor 8 sends a signal to the PLC controller 28. The PLC controller 28 immediately stops the operation of the motor 16, thus avoiding the problem of excessive bending of the pipe. The circuit connection methods, mechanical structures, and connection relationships not mentioned in this specification are all conventional technical means in this field, and therefore will not be described in detail. This type of pipe bending machine for processing automotive seat frames is easy to use. With the above components, it can meet the pipe bending work of pipes of different diameters, thereby further improving the applicability of this equipment. At the same time, it can accurately limit the bending angle during the bending process, thereby further improving the pass rate of pipe bending processing.

[0025] 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 tube bending machine for processing automotive seat frames, characterized in that, The system includes a frame (1), on which a machine platform (2) is fixedly mounted. A fixed tire wheel (3) is fixedly mounted on the machine platform (2). A rotating tube (18) is rotatably connected inside the machine platform (2). The top end of the rotating tube (18) extends out of the fixed tire wheel (3) and is fixedly mounted with a swing arm (4). A bending seat (5) is fixedly mounted inside the swing arm (4) on the right side of the fixed tire wheel (3). Multiple bending grooves (6) of different diameters are arranged sequentially from top to bottom inside the bending seat (5) and the fixed tire wheel (3). The bottom end of the rotating tube (18) extends out of the bottom end of the machine platform (2) and is fixedly mounted with a gear ring (14). A gear (15) is meshed with the right side of the gear ring (14). The bottom end of the machine platform (2) is located at the gear ring (15). 4) is fixedly fitted with a bracket (27) on the outside. A transmission rod (19) is rotatably connected inside the bracket (27). The bottom end of the transmission rod (19) extends out of the bottom end of the bracket (27) and is fixedly installed with a gear plate (12). A gear bar (13) is meshed with the left side of the gear plate (12). The top end of the transmission rod (19) extends out of the swing arm (4) and is fixedly installed with an adjustment frame (7). A vertical plate (10) is fixedly installed at the bottom front end of the adjustment frame (7). A pressure sensor (8) is fixedly installed on the right side of the vertical plate (10). A scale ring (11) is provided at the top end of the tire wheel (3). A slot (9) is opened at the front end of the swing arm (4). An arrow (24) is fixedly installed at the front end of the vertical plate (10).

2. The tube bending machine for processing automotive seat frames according to claim 1, characterized in that, A mounting bracket (17) is fixedly installed inside the frame (1) at the lower part of the gear disc (12), and the bottom end of the gear disc (12) is rotatably connected to the mounting bracket (17).

3. The tube bending machine for processing automotive seat frames according to claim 2, characterized in that, A connecting plate (21) is fixedly installed at the front end of the rack (13), and a motor (16) is fixedly installed at the bottom end of the mounting bracket (17). The output end of the motor (16) is fixedly installed on the gear (15).

4. A tube bending machine for processing automotive seat frames according to claim 2, characterized in that, A slide (22) is fixedly installed at the bottom end of the rack (13), and a groove (23) is provided on the mounting bracket (17) corresponding to the slide (22), and the slide (22) is slidably connected in the groove (23).

5. A tube bending machine for processing automotive seat frames according to claim 2, characterized in that, The second cylinder (25) is fixedly installed at the rear end of the mounting bracket (17), and a bracket (26) is fixedly installed on the output end of the second cylinder (25).

6. A tube bending machine for processing automotive seat frames according to claim 5, characterized in that, The PLC controller (28) is fixedly mounted on the rear end of the mounting bracket (17) at the left side of the second cylinder (25).

7. A tube bending machine for processing automotive seat frames according to claim 1, characterized in that, The bottom end of the machine base (2) is fixedly installed on the left side of the gear ring (14), and the output end of the first cylinder (20) is fixedly installed on the connecting plate (21).

Citation Information

Patent Citations

  • Pipe bending machine for machining automobile seat framework

    CN216679687U