A tube bending machine for processing airbag tubes

Abstract

The application discloses a pipe bending machine for processing airbag pipes and relates to the technical field of pipe bending machines.The pipe bending machine comprises a rack, and a feeding device is arranged on the rack.The feeding device is a device for conveying pipe materials and can clamp, rotate and push the pipe materials, which is consistent with the feeding structure of the existing pipe bending machine.The end of the rack is provided with an adjusting frame, and the adjusting frame is connected with the rack through an alignment mechanism.A central shaft is rotatably installed on the adjusting frame, and a driving motor is arranged below the central shaft and used for driving the central shaft to rotate.The device fixes frequently-used bending dies at different heights of the central shaft, fixes adaptive pressing dies and clamping dies at the same height of the roller pressing frame and the clamping frame, adjusts the position of the adjusting frame through the alignment mechanism, and can directly adjust the position of the dies when processing pipe materials of different models, so that the dies do not need to be replaced, the operation is simpler, and the production efficiency can be improved.

Description

Technical Field

[0001] This application relates to the field of pipe bending machine technology, and in particular to a pipe bending machine for processing airbag tubes. Background Technology

[0002] A pipe bending machine is a specialized piece of equipment used for bending and shaping metal pipes. It is widely used in pipeline engineering, automotive manufacturing, aerospace, furniture decoration, and other fields. It applies external force through mechanical transmission or a hydraulic system to bend straight pipes into the desired shape at a preset angle and radius, while maintaining uniform pipe wall thickness and preventing excessive deformation or breakage. Modern pipe bending machines are equipped with CNC systems, enabling high-precision automated operation and supporting continuous bending of complex curves. This significantly improves production efficiency and processing quality, making it one of the essential pieces of equipment in the pipe processing industry.

[0003] When using a pipe bending machine, the pipe needs to be bent by a complete set of molds, including bending mold, pressing mold and clamping mold. Different pipe diameters and different bending angles require different sets of molds to achieve bending. When changing product models, the entire set of molds needs to be replaced, which is inconvenient to operate and reduces production efficiency. Summary of the Invention

[0004] To address the technical problem of cumbersome mold changing procedures in pipe bending machines, which affects production efficiency, this application provides a pipe bending machine for processing airbag tubes.

[0005] The technical solution provided in this application for a pipe bending machine for processing airbag tubes is as follows:

[0006] A pipe bending machine for processing airbag tubes includes a frame, a feeding device on the frame, an adjusting frame at the end of the frame, an alignment mechanism between the adjusting frame and the frame, a central shaft rotatably mounted on the adjusting frame, a drive motor mounted below the adjusting frame to drive the central shaft to rotate, a rotating frame fixed on the central shaft, a roller pressing frame slidably mounted on the rotating frame, and several pressing dies of different types mounted on the roller pressing frame. A clamping frame slidably mounted on the upper surface of the adjusting frame, and clamping... Several different types of clamping dies are fixed on the holding frame, and several different types of bending dies are fixed on the central shaft. The roller pressing frame, clamping frame, and the pressing die, clamping die, and bending die of the same height on the central shaft constitute a set of molds. The central shaft passes through the middle position of the bending die. Anti-slip grooves are opened on both the upper and lower surfaces of the bending die, and anti-slip rods are inserted into the anti-slip grooves between the bending dies. Two clamping pads are fixed on the central shaft, which are respectively clamped on the upper and lower surfaces of the bending die. Anti-slip strips are provided on the clamping pads, and the anti-slip strips are embedded in the anti-slip grooves at the corresponding positions.

[0007] By adopting the above technical solution, frequently used bending dies are fixed at different heights of the central shaft, and suitable pressing dies and clamping dies are fixed at the same heights of the roller pressing frame and clamping frame. The position of the adjusting frame is adjusted by the alignment mechanism. When processing different types of pipes, the position of the dies can be directly adjusted without replacing the dies, making the operation simpler. Moreover, anti-slip grooves and anti-slip rods are set between multiple bending dies to prevent slippage. With the cooperation of the clamping pads, the stability of the bending dies can be improved.

[0008] Preferably, the alignment mechanism includes a fixed plate fixed on the frame, a lifting plate slidably mounted on the fixed plate via a slide rail, and a transverse plate slidably mounted on the lifting plate via a slide rail. An adjustment frame is fixed on the transverse plate. A first bracket is fixed on the frame, a lifting motor is mounted on the first bracket, and the output shaft of the lifting motor is connected to the bottom of the lifting plate. A second bracket is fixed on the side of the lifting plate, a transverse motor is mounted on the second bracket, and the output shaft of the transverse motor is connected to the side end of the transverse plate.

[0009] By adopting the above technical solution, the transverse motor can drive the transverse plate to move laterally, the lifting motor can drive the lifting plate to move up and down, and the lifting plate will synchronously drive the transverse plate to move up and down, thus realizing the transverse movement and vertical adjustment of the transverse plate, ensuring that the center of different mold types can be aligned with the feeding device.

[0010] Preferably, a first hydraulic cylinder is installed on the inner side of the rotating frame, and the output shaft of the first hydraulic cylinder is fixed to the roller pressing frame, which is used to drive the roller pressing frame to slide along the rotating frame.

[0011] By adopting the above technical solution, the first hydraulic cylinder drives the roller press frame to move, thereby causing the press mold to clamp on the side of the pipe.

[0012] Preferably, a second hydraulic cylinder is installed on the inner side of the adjustment frame, and the output shaft of the second hydraulic cylinder is fixed to the clamping frame to drive the clamping frame to slide.

[0013] By adopting the above technical solution, the second hydraulic cylinder drives the clamping frame to move, thereby causing the clamping mold to clamp the side of the pipe.

[0014] Preferably, the bottom of the adjustment frame has an installation opening, and an installation frame is slidably arranged in the installation opening. The drive motor is installed on the installation frame. A fixing block is fixed to the bottom of the adjustment frame, and a push rod is threadedly connected to the fixing block. The end of the push rod abuts against the installation frame, and the output shaft of the drive motor is connected to the central shaft through a belt drive pair.

[0015] By adopting the above technical solution, rotating the top rod can push the mounting bracket away from the central axis, causing the belt drive pair to tighten. This allows for adjustment when the belt drive pair becomes loose, ensuring stable transmission.

[0016] Preferably, a vertical plate is fixed to the side end of the rotating frame, a reinforcing rod is fixed to the upper end of the vertical plate, and the other end of the reinforcing rod is connected to the central shaft.

[0017] By adopting the above technical solution, connecting the outer side of the rotating frame to the upper end of the central shaft can further improve the rotational consistency of the rotating frame and the central shaft, thereby improving structural stability.

[0018] Preferably, a mounting base is fixed on the frame, a rotating shaft is rotatably mounted on the mounting base, a support rod is fixed to one end of the rotating shaft, a support wheel is rotatably mounted on the support rod, a connecting rod is fixed to the other end of the rotating shaft, an auxiliary hydraulic cylinder is hinged to the side end of the mounting base, and the output shaft end of the auxiliary hydraulic cylinder is hinged to the end of the connecting rod.

[0019] By adopting the above technical solution, when a long pipe needs to be bent at one time, there is a long distance between the outlet of the feeding device and the mold, and the pipe is prone to shaking. At this time, the support rod can be lifted by the auxiliary hydraulic cylinder, and the bottom of the pipe can be supported by the support wheel to improve the stability of the pipe during processing.

[0020] Preferably, a limit switch is installed on the side end of the adjustment frame.

[0021] By adopting the above technical solution, the limit switch can be triggered when the rotating frame rotates to its maximum angle, preventing excessive rotation from damaging the equipment.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. Fixed frequently used bending dies at different heights on the central shaft, and fixed matching pressing dies and clamping dies at the same heights on the roller press frame and clamping frame. The position of the adjusting frame is adjusted by the alignment mechanism. When processing different types of pipes, the position of the die can be directly adjusted without changing the die, making the operation simpler and improving production efficiency.

[0024] 2. Anti-slip grooves and anti-slip rods are provided between multiple bending dies to prevent slippage. With the cooperation of the clamping pads, the stability of the bending dies can be improved. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall isometric structure of this application;

[0026] Figure 2 This is a schematic diagram of the upper axonal structure of the adjustment frame in this application;

[0027] Figure 3 This is a schematic diagram of the central axis structure in this application;

[0028] Figure 4This is a schematic diagram of the alignment mechanism in this application;

[0029] Figure 5 This is a schematic diagram of the lower axial side structure of the adjustment frame in this application;

[0030] Figure 6 This is a schematic diagram of the support wheel in this application.

[0031] Reference numerals: 1. Frame; 2. Feeding device; 3. Adjusting frame; 4. Central shaft; 5. Drive motor; 6. Rotating frame; 7. Roller frame; 8. Pressing die; 9. Clamping frame; 10. Clamping die; 11. Bending die; 12. Anti-slip groove; 13. Anti-slip rod; 14. Clamping pad; 15. Fixing plate; 16. First support; 17. Lifting motor; 18. Lifting plate; 19. Horizontal movement plate; 20. Second support; 21. Horizontal movement motor; 22. First hydraulic cylinder; 23. Second hydraulic cylinder; 24. Mounting frame; 25. Fixing block; 26. Top rod; 27. Belt drive pair; 28. Vertical plate; 29. ​​Reinforcing rod; 30. Mounting seat; 31. Rotating shaft; 32. Support rod; 33. Support wheel; 34. Connecting rod; 35. Auxiliary hydraulic cylinder; 36. Limit switch. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0033] This application discloses a pipe bending machine for processing airbag tubes.

[0034] Example 1

[0035] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5 A pipe bending machine for processing airbag tubes includes a frame 1, on which a feeding device 2 is mounted. The feeding device 2 is a device for conveying pipe material, capable of clamping, rotating, and pushing the pipe material, and is consistent with the feeding structure of existing pipe bending machines. An adjusting frame 3 is provided at the end of the frame 1, and the adjusting frame 3 is connected to the frame 1 via an alignment mechanism. A central shaft 4 is rotatably mounted on the adjusting frame 3, and a drive motor 5 is mounted below it to drive the central shaft 4 to rotate.

[0036] A rotating frame 6 is fixed on the central shaft 4, and a roller pressing frame 7 is slidably mounted on the rotating frame 6. Several different types of pressing dies 8 are installed on the roller pressing frame 7, distributed at different heights. A clamping frame 9 is slidably mounted on the upper surface of the adjusting frame 3, and several different types of clamping dies 10 are fixed on the clamping frame 9. At the same time, several different types of bending dies 11 are also fixed on the central shaft 4. The roller pressing frame 7, the clamping frame 9, and the pressing dies 8, clamping dies 10, and bending dies 11 at the same height on the central shaft 4 constitute a set of molds.

[0037] The central shaft 4 passes through the middle of the bending die 11. Anti-slip grooves 12 are provided on both the upper and lower surfaces of the bending die 11, and anti-slip rods 13 are inserted into the anti-slip grooves 12. Two clamping pads 14 are fixed on the central shaft 4, clamping the upper and lower surfaces of the bending die 11 respectively. The clamping pads 14 are provided with anti-slip strips, which are embedded in the corresponding anti-slip grooves 12.

[0038] In addition, a first hydraulic cylinder 22 is installed on the inner side of the rotating frame 6, and its output shaft is fixed to the roller pressing frame 7, which can drive the roller pressing frame 7 to slide along the rotating frame 6. A second hydraulic cylinder 23 is installed on the inner side of the adjusting frame 3, and its output shaft is fixed to the clamping frame 9, which can drive the clamping frame 9 to slide.

[0039] Furthermore, a limit switch 36 is installed on the side of the adjustment frame 3, which can be triggered when the rotating frame 6 is rotated to the maximum angle to prevent excessive rotation from damaging the equipment.

[0040] With the above setup, various commonly used bending dies 11 are pre-fixed at different height positions on the central shaft 4. At the same time, on the roller press frame 7 and the clamping frame 9, appropriate pressing dies 8 and clamping dies 10 are fixed at the same height corresponding to the bending dies 11, respectively.

[0041] When different types of pipes need to be processed, the operator only needs to adjust the position of the adjustment frame 3 through the alignment mechanism to directly change the relative position of the mold. Unlike the traditional method, there is no need to disassemble and replace the entire mold. The operation process is simpler and faster.

[0042] Furthermore, anti-slip grooves 12 and anti-slip rods 13 are carefully designed between the multiple bending dies 11 to prevent slippage. In addition, with the coordinated action of the clamping pads 14, the stability of the bending dies 11 during operation is significantly improved, ensuring processing accuracy and product quality.

[0043] Reference Figure 4 The alignment mechanism includes a fixed plate 15 fixed to the frame 1. A lifting plate 18 is slidably mounted on the fixed plate 15 via a slide rail, allowing the lifting plate 18 to move flexibly in the vertical direction. Simultaneously, the lifting plate 18 is also provided with a slide rail, on which a transverse plate 19 is slidably mounted, allowing the transverse plate 19 to slide freely in the horizontal direction. The adjustment frame 3 is fixed to the transverse plate 19.

[0044] A first bracket 16 is fixed on the frame 1, and a lifting motor 17 is mounted on the first bracket 16. The output shaft of the lifting motor 17 is connected to the bottom of the lifting plate 18, thereby enabling precise control of the lifting and lowering of the lifting plate 18. In addition, a second bracket 20 is fixed to the side of the lifting plate 18, and a transverse motor 21 is mounted on the second bracket 20. The output shaft of the transverse motor 21 is connected to the side end of the transverse plate 19, thereby driving the transverse plate 19 to move in the horizontal direction.

[0045] With the above configuration, when the transverse motor 21 is running, it can drive the transverse plate 19 to move smoothly laterally; after the lifting motor 17 is started, it can drive the lifting plate 18 to move up and down. Since the transverse plate 19 is mounted on the lifting plate 18, when the lifting plate 18 moves up and down, it will simultaneously drive the transverse plate 19 to move up and down as well. Through the coordinated operation of the transverse motor 21 and the lifting motor 17, the transverse movement and vertical adjustment of the transverse plate 19 can be realized, thereby ensuring that the center of different types of molds can be accurately aligned with the feeding device 2.

[0046] refer to Figure 2 and Figure 5 The bottom of the adjustment frame 3 has an installation opening, and the installation frame 24 is slidably installed in the installation opening. The drive motor 5 is installed on the installation frame 24. The bottom of the adjustment frame 3 is fixed with a fixing block 25, and a push rod 26 is threadedly connected to the fixing block 25. The end of the push rod 26 abuts against the installation frame 24, and the output shaft of the drive motor 5 is connected to the central shaft 4 through a belt drive pair 27.

[0047] With the above configuration, rotating the push rod 26 applies a compressive force to the mounting bracket 24 in a direction away from the central axis 4, thereby keeping the belt drive pair 27 taut. This method can be used to adjust the belt drive pair 27 if it becomes loose, thus ensuring the stability of the transmission.

[0048] refer to Figure 2 , Figure 3 , Figure 5 and Figure 6 A vertical plate 28 is fixedly installed on the side of the rotating frame 6. A reinforcing rod 29 is fixedly connected to the upper end of the vertical plate 28, and the other end of the reinforcing rod 29 is connected to the central shaft 4 to enhance structural stability. Meanwhile, a mounting base 30 is fixedly installed on the frame 1, and a rotating shaft 31 is rotatably mounted on the mounting base 30 via bearings. A support rod 32 is fixedly connected to one end of the rotating shaft 31, and a support wheel 33 is rotatably mounted on the support rod 32 via a bearing pair; a connecting rod 34 is fixedly connected to the other end of the rotating shaft 31. An auxiliary hydraulic cylinder 35 is hinged to the side of the mounting base 30, and the output shaft end of the auxiliary hydraulic cylinder 35 is hinged to the end of the connecting rod 34.

[0049] By connecting the outer side of the rotating frame 6 to the upper end of the central shaft 4 through the above-mentioned arrangement, the rotational consistency of the rotating frame 6 and the central shaft 4 can be further improved, thereby enhancing structural stability. Furthermore, in actual production, if a long pipe needs to be bent in one operation, a long gap will form between the outlet of the feeding device 2 and the mold. Within this gap, the pipe, lacking sufficient support, is prone to vibration, affecting processing quality. At this point, the operator can manipulate the auxiliary hydraulic cylinder 35 to drive the support rod 32 upwards, causing the support wheel 33 to contact the bottom of the pipe and provide support, thus enhancing the stability of the pipe during processing.

[0050] The implementation principle of the airbag tube bending machine in this application embodiment is as follows:

[0051] Various commonly used bending dies 11 are pre-fixed at different height positions of the central shaft 4. Meanwhile, on the roller press frame 7 and the clamping frame 9, at the same height corresponding to the bending die 11, the matching pressing die 8 and clamping die 10 are fixed respectively. The position of the adjusting frame 3 is adjusted by the transverse motor 21 and the lifting motor 17 to align the die with the feeding device 2. The feeding device 2 feeds in the pipe, and then the pressing die 8 and clamping die 10 cooperate with the bending die 11 to clamp the pipe. Then the drive motor 5 drives the central shaft 4 to rotate, and the rotating frame 6 also rotates synchronously. Under the drive of the bending die 11 and the pressing die 8, the pipe is bent. The position of the adjusting frame 3 can be adjusted. When processing different types of pipes, the position of the die can be adjusted directly without changing the die, making the operation simpler and improving production efficiency. Moreover, when the pipe is long, the auxiliary hydraulic cylinder 35 will lift the support wheel 33 to achieve a support effect. In addition, rotating the top rod 26 can squeeze the mounting frame 24 away from the central shaft 4, causing the belt drive pair 27 to tighten. Adjustment can be made when the belt drive pair 27 is loose to ensure stable transmission.

[0052] In summary, this device can install multiple sets of molds simultaneously. When processing different types of pipes, the position of the molds can be directly adjusted without replacing them, making operation simpler and improving production efficiency.

[0053] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pipe bending machine for processing airbag tubes, comprising a frame (1), wherein a feeding device (2) is provided on the frame (1), characterized in that: An adjustment frame (3) is provided at the end of the frame (1), and an alignment mechanism is provided between the adjustment frame (3) and the frame (1). A central shaft (4) is rotatably mounted on the adjustment frame (3), and a drive motor (5) is installed below the adjustment frame (3) to drive the central shaft (4) to rotate. A rotating frame (6) is fixed on the central shaft (4), and a roller pressing frame (7) is slidably mounted on the rotating frame (6). Several different types of pressing molds (8) are mounted on the roller pressing frame (7). A clamping frame (9) is slidably mounted on the upper surface of the adjustment frame (3), and several different types of clamping molds (10) are fixed on the clamping frame (9). There are several different types of bending dies (11). The roller press frame (7), the clamping frame (9) and the central shaft (4) are a set of molds with the same height of the pressing die (8), clamping die (10) and bending die (11). The central shaft (4) passes through the middle position of the bending die (11). The upper and lower surfaces of the bending die (11) are provided with anti-slip grooves (12). Anti-slip rods (13) are inserted in the anti-slip grooves (12) between the bending dies (11). Two clamping pads (14) are fixed on the central shaft (4) and clamped on the upper and lower surfaces of the bending die (11). Anti-slip strips are provided on the clamping pads (14). The anti-slip strips are embedded in the anti-slip grooves (12) at the corresponding positions.

2. The tube bending machine for processing of an airbag tube according to claim 1, characterized in that: The alignment mechanism includes a fixed plate (15) fixed on the frame (1), a lifting plate (18) slidably mounted on the fixed plate (15) via a slide rail, and a transverse plate (19) slidably mounted on the lifting plate (18) via a slide rail. An adjustment frame (3) is fixed on the transverse plate (19). A first bracket (16) is fixed on the frame (1). A lifting motor (17) is mounted on the first bracket (16), and the output shaft of the lifting motor (17) is connected to the bottom of the lifting plate (18). A second bracket (20) is fixed on the side of the lifting plate (18), and a transverse motor (21) is mounted on the second bracket (20), and the output shaft of the transverse motor (21) is connected to the side end of the transverse plate (19).

3. The airbag tube bending machine according to claim 1, characterized in that: The inner side of the rotating frame (6) is equipped with a first hydraulic cylinder (22), and the output shaft of the first hydraulic cylinder (22) is fixed to the roller pressing frame (7) to drive the roller pressing frame (7) to slide along the rotating frame (6).

4. The tube bending machine for processing airbag tubes as defined in claim 1, wherein: The inner side of the adjustment frame (3) is equipped with a second hydraulic cylinder (23), and the output shaft of the second hydraulic cylinder (23) is fixed to the clamping frame (9) to drive the clamping frame (9) to slide.

5. The tube bending machine for processing airbag tubes as defined in claim 1, wherein: The bottom of the adjustment frame (3) is provided with an installation port, and an installation frame (24) is slidably arranged in the installation port. The drive motor (5) is installed on the installation frame (24). A fixing block (25) is fixed at the bottom of the adjustment frame (3), and a push rod (26) is threadedly connected to the fixing block (25). The end of the push rod (26) abuts against the installation frame (24), and the output shaft of the drive motor (5) is connected to the central shaft (4) through a belt drive pair (27).

6. The tube bending machine for processing of an airbag tube according to claim 1, characterized in that: The rotating frame (6) has a vertical plate (28) fixed to its side end, and a reinforcing rod (29) is fixed to the upper end of the vertical plate (28), with the other end of the reinforcing rod (29) connected to the central shaft (4).

7. A pipe bending machine for processing airbag tubes according to claim 1, characterized in that: A mounting base (30) is fixed on the frame (1). A rotating shaft (31) is rotatably mounted on the mounting base (30). A support rod (32) is fixed to one end of the rotating shaft (31). A support wheel (33) is rotatably mounted on the support rod (32). A connecting rod (34) is fixed to the other end of the rotating shaft (31). An auxiliary hydraulic cylinder (35) is hinged to the side end of the mounting base (30), and the output shaft end of the auxiliary hydraulic cylinder (35) is hinged to the end of the connecting rod (34).

8. A pipe bending machine for processing airbag tubes according to claim 1, characterized in that: A limit switch (36) is installed on the side end of the adjustment frame (3).

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