Pipe bending machine for machining automobile seat framework

Abstract

The utility model discloses a pipe bender for processing an automobile seat framework, which comprises a workbench, the outer wall of one side of the workbench is fixedly connected with a first motor, and the output end of the first motor is fixedly connected with a first bidirectional threaded rod. In the actual use process, the first motor operates to drive the first bidirectional threaded rod to rotate and move oppositely or oppositely along the first bidirectional threaded rod, so that the distance between the connecting bases on the two sides is flexibly adjusted according to the length of a pipe, transverse positioning of the fixed roller is achieved, the vertical plate and the mounting plate are of a stable supporting structure, the second motor is mounted on the mounting plate, and the vertical plate and the mounting plate are fixed. According to the pipe bending device, the two-way threaded rod II is driven to rotate, the connecting block is driven by threads to drive the inner rod and the fixing roller to vertically move to clamp and position a pipe, the problems that an existing device is poor in adaptability to different pipes and unstable in fixation are solved through cooperation, accurate positioning and firm fixing of the pipes before pipe bending are achieved, and the pipe bending device is suitable for pipes of various specifications and high in practicability. And the pipe bending precision and efficiency are improved.

Description

Technical Field

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

[0002] A tube bending machine for processing automotive seat frames is an important piece of equipment in automotive seat frame manufacturing. Based on a worktable, a motor on one side drives a double-threaded rod, which in turn adjusts the spacing of the connecting seat and the upper fixed roller to achieve lateral positioning of the tube. Motors on the mounting plates on both sides control the connecting block and slider via the double-threaded rod, thereby adjusting the vertical position of the fixed roller and firmly clamping the tube. During operation, an electric push rod on the support pushes the connecting frame, causing the bending roller to press down. With the cooperation of the fixed roller, the tube is precisely bent and shaped, efficiently completing the tube bending processing task for automotive seat frame tubes.

[0003] A search revealed that Chinese patent CN221952075U discloses a tube bending machine for processing automotive seat frames. The patent describes a method that uses two sets of fixing mechanisms to fix both ends of the frame, and uses connecting rods and springs to lift both ends of the frame when it is bent, without causing the frame to shift. Therefore, the technical solution can prevent damage or bending of the sides of the frame when it is bent.

[0004] While this solution effectively prevents the skeleton from shifting, the device cannot be adjusted according to the size when bending skeleton tubes of different diameters, resulting in the need to replace the vertical plate for operation. This leads to poor adaptability of the device and a significant reduction in work efficiency. To solve this technical problem, this utility model proposes a tube bending machine for processing automotive seat skeletons. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] While this solution effectively prevents the skeleton from shifting, the device cannot be adjusted according to the size when bending skeleton tubes of different diameters, resulting in the need to replace the vertical plate for operation. This leads to poor adaptability of the device and a significant reduction in work efficiency. To solve this technical problem, this utility model proposes a tube bending machine for processing automotive seat skeletons.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: a tube bending machine for processing automotive seat frames, including a worktable, a motor fixedly connected to one outer wall of the worktable, a bidirectional threaded rod fixedly connected to the output end of the motor, connecting seats threaded to the outer walls of both ends of the bidirectional threaded rod, a pair of vertical plates fixedly connected to the top of each connecting seat, and a pair of fixed rollers arranged above and between the two vertical plates.

[0009] Preferably, mounting plates are fixedly connected to the outer walls above the vertical plates on both sides, and a second motor is fixedly connected to the top of each mounting plate. A second bidirectional threaded rod is fixedly connected to the output end of the second motor, and connecting blocks are threaded to the outer walls at both ends of the second bidirectional threaded rod.

[0010] Preferably, each of the connecting blocks has a slider fixedly connected to its outer side wall, an inner rod is rotatably connected between the two sliders, and a fixed roller is fixedly connected to the outer wall of the inner rod.

[0011] Preferably, a pair of limiting rods are fixedly connected inside the worktable, and the connecting seat is slidably connected to the outer wall of the limiting rods.

[0012] Preferably, a positioning rod is fixedly connected between the mounting plate on the other side and the connecting seat, and the connecting block on the other side is slidably connected to the outer wall of the positioning rod, while the slider is slidably connected to the inside of the vertical plate.

[0013] Preferably, a bracket is fixedly connected to the top of the workbench, an electric push rod is fixedly connected to the top of the bracket, a connecting frame is fixedly connected to the output end of the electric push rod, and a bending roller is provided inside the connecting frame.

[0014] (III) Beneficial Effects

[0015] This utility model provides a tube bending machine for processing automotive seat frames. It has the following advantages:

[0016] (1) Motor 1 is installed on the workbench. Its operation drives the rotation of the bidirectional threaded rod 1. Since the threads at both ends of the bidirectional threaded rod 1 are reversed, the connecting seat moves relative to or away from each other along the bidirectional threaded rod 1 under the constraint of the limiting rod. In this way, the distance between the connecting seats on both sides can be flexibly adjusted according to the length of the pipe to achieve the lateral positioning of the fixed roller. The vertical plate and the mounting plate provide a stable support structure. Motor 2 is installed on the mounting plate and drives the bidirectional threaded rod 2 to rotate. The connecting block is driven by the thread and moves along the positioning rod. The slider on its outer wall slides in the vertical plate, thereby driving the inner rod and the fixed roller to move vertically to clamp and position the pipe. This set of mechanisms solves the problems of poor adaptability and unstable fixing of the existing device to different pipes. It realizes the accurate positioning and firm fixing of the pipe before bending, adapts to various specifications of pipes, improves the accuracy and efficiency of bending, and ensures the smooth progress of bending operations. 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 overall side structure of this utility model;

[0019] Figure 3 This is a top view of the structure of this utility model.

[0020] In the diagram: 1. Workbench; 2. Motor 1; 3. Bidirectional threaded rod 1; 4. Connecting seat; 5. Limiting rod; 6. Vertical plate; 7. Mounting plate; 8. Motor 2; 9. Bidirectional threaded rod 2; 10. Connecting block; 11. Slider; 12. Inner rod; 13. Fixed roller; 14. Positioning rod; 16. Electric push rod; 17. Connecting frame; 18. Bending roller; 19. Support. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] Please see Figure 1-3 This utility model provides a technical solution:

[0023] Example 1: A tube bending machine for processing automotive seat frames includes a worktable 1. A motor 2 is fixedly connected to the outer wall of one side of the worktable 1. A bidirectional threaded rod 3 is fixedly connected to the output end of the motor 2. Connecting seats 4 are threaded to the outer walls of both ends of the bidirectional threaded rod 3. A pair of vertical plates 6 are fixedly connected to the top of each connecting seat 4. A pair of fixed rollers 13 are provided above the two vertical plates 6. A pair of limiting rods 5 are fixedly connected inside the worktable 1, and the connecting seats 4 are slidably connected to the outer wall of the limiting rods 5.

[0024] When performing pipe processing operations, the pipe is first placed between the two fixed rollers 13. Next, the motor 2, installed on the outer wall of one side of the worktable 1, is started. After motor 2 starts running, it drives the bidirectional threaded rod 3 to rotate. Because the threads at both ends of the bidirectional threaded rod 3 are in opposite directions, during its rotation, the connecting seats 4, which are threaded to the outer walls of both ends of the bidirectional threaded rod 3, will be driven by the threads and move linearly along the limiting rod 5 inside the worktable 1. Furthermore, the movement directions of the connecting seats 4 on both sides are opposite or opposite. In this way, the distance between the connecting seats 4 on both sides can be flexibly adjusted according to the actual length of the pipe, thereby adjusting the lateral position of the two fixed rollers 13 accordingly, thus achieving initial lateral positioning of the pipe.

[0025] Example 2: The difference between this example and Example 1 is that, in this example, mounting plates 7 are fixedly connected to the outer walls above the vertical plates 6 on both sides, and motor 8 is fixedly connected to the top of each mounting plate 7. A bidirectional threaded rod 9 is fixedly connected to the output end of motor 8. Connecting blocks 10 are threadedly connected to the outer walls of both ends of the bidirectional threaded rod 9. A slider 11 is fixedly connected to the outer wall of each connecting block 10. An inner rod 12 is rotatably connected between the two sliders 11, and a fixed roller 13 is fixedly connected to the outer wall of the inner rod 12. A positioning rod 14 is fixedly connected between the mounting plate 7 on the other side and the connecting seat 4. The connecting block 10 on the other side is slidably connected to the outer wall of the positioning rod 14, while the slider 11 is slidably connected to the inside of the vertical plate 6.

[0026] When further positioning and clamping of the pipe is required before bending, the motor 8 on the top of the mounting plates 7 on both sides is turned on. After the motor 8 starts, it drives the bidirectional threaded rod 9 to rotate. Since the threads at both ends of the bidirectional threaded rod 9 are opposite, the connecting block 10 connected to it will move linearly along the positioning rod 14 due to the rotation of the threads, and the movement directions of the two connecting blocks 10 are opposite or opposite. At the same time, the slider 11 on the outer wall of the connecting block 10 will slide synchronously inside the vertical plate 6. The inner rod 12 rotatably connected between the sliders 11, and the fixed roller 13 fixed to the outer wall of the inner rod 12, will also move with the movement of the connecting block 10. With the help of this series of linkages, the vertical position of the fixed roller 13 can be flexibly adjusted, thereby achieving further clamping and precise positioning of the pipe, providing a strong guarantee for the pipe to remain stable during the subsequent bending process.

[0027] Example 3: The difference between this example and Examples 1 and 2 is that a bracket 19 is fixedly connected to the top of the workbench 1, an electric push rod 16 is fixedly connected to the top of the bracket 19, a connecting frame 17 is fixedly connected to the output end of the electric push rod 16, and a bending roller 18 is provided inside the connecting frame 17.

[0028] When preparing to bend the pipe, the electric push rod 16 on the top support 19 of the workbench 1 is activated. After the electric push rod 16 is activated, its output end pushes the connecting frame 17 downward, and the bending roller 18 inside the connecting frame 17 also moves downward. At this time, the pipe is stably clamped and positioned by the fixed roller 13. As the bending roller 18 continues to press down, the pipe gradually bends and deforms under the combined action of the support provided by the fixed roller 13 and the pressure applied by the bending roller 18. In this way, the pipe bending operation is successfully completed through the coordinated operation of the fixed roller 13 and the bending roller 18.

[0029] Working principle: When bending the pipe is required, the pipe is first placed between the fixed rollers 13 on both sides. The motor 2 on one side of the worktable 1 is started, driving the bidirectional threaded rod 3 to rotate. Since the threads at both ends of the bidirectional threaded rod 3 are opposite in direction, the connecting seats 4 connected by the threads on the outer walls of both ends will move in a relative or opposite linear motion along the limiting rod 5 inside the worktable 1 under the rotation of the bidirectional threaded rod 3. This allows adjustment of the distance between the connecting seats 4 on both sides according to the length of the pipe, thereby adjusting the lateral position of the fixed rollers 13 on both sides and performing initial lateral positioning of the pipe. The motor 8 on the top of the mounting plates 7 on both sides is started, driving the bidirectional threaded rod 9 to rotate. The connecting blocks 10 connected by the threads at both ends of the bidirectional threaded rod 9 move in a relative or opposite linear motion along the positioning rod 14 under its rotation. The sliders 11 on the outer walls of the connecting blocks 10 also slide inside the vertical plate 6, and the inner rod 12 rotatably connected between the sliders 11 and the fixed rollers 13 fixed to the outer wall of the inner rod 12 will also move accordingly. In this way, the vertical position of the fixed roller 13 can be adjusted to further clamp and position the pipe, ensuring its stability during bending. The electric push rod 16 on the top support 19 of the worktable 1 is activated, and its output end drives the connecting frame 17 to move downward. The bending roller 18 inside the connecting frame 17 then presses down on the pipe. Since the pipe has been stably clamped and positioned by the fixed roller 13, the downward pressure of the bending roller 18 will cause the pipe to bend and deform under the action of the fixed roller 13 and the bending roller 18, thereby completing the pipe bending operation.

[0030] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A tube bending machine for processing automotive seat frames, characterized in that: The device includes a workbench (1), a motor (2) is fixedly connected to one side of the outer wall of the workbench (1), a bidirectional threaded rod (3) is fixedly connected to the output end of the motor (2), and connecting seats (4) are threaded to both ends of the bidirectional threaded rod (3). A pair of vertical plates (6) are fixedly connected to the top of each connecting seat (4), and a pair of fixed rollers (13) are provided above the two vertical plates (6). Mounting plates (7) are fixedly connected to the outer walls above the vertical plates (6) on both sides. A motor (8) is fixedly connected to the top of each mounting plate (7). A bidirectional threaded rod (9) is fixedly connected to the output end of the motor (8). A connecting block (10) is threaded to the outer walls at both ends of the bidirectional threaded rod (9). Each of the connecting blocks (10) has a slider (11) fixedly connected to its outer side wall, and an inner rod (12) is rotatably connected between the two sliders (11), and a fixed roller (13) is fixedly connected to the outer wall of the inner rod (12); The workbench (1) is fixedly connected to a pair of limiting rods (5), and the connecting seat (4) is slidably connected to the outer wall of the limiting rods (5); On the other side, a positioning rod (14) is fixedly connected between the mounting plate (7) and the connecting seat (4), and the connecting block (10) on the other side is slidably connected to the outer wall of the positioning rod (14), while the slider (11) is slidably connected to the inside of the vertical plate (6).

2. The tube bending machine for processing automotive seat frames according to claim 1, characterized in that: The workbench (1) is fixedly connected to a bracket (19) at the top, and an electric push rod (16) is fixedly connected to the top of the bracket (19). A connecting frame (17) is fixedly connected to the output end of the electric push rod (16), and a bending roller (18) is provided inside the connecting frame (17).

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