Hollow pipe bending processing device

Abstract

The utility model discloses a hollow pipe bending processing device, which belongs to the technical field of hollow pipe bending and comprises a support frame, four vertical rods for supporting are welded on the bottom surface of the support frame, and cross rods are welded on adjacent sides of the two vertical rods. A stamping backrest bending set used for bending a hollow pipe and a supporting base used for limiting the position of the hollow pipe are installed on the top face of the supporting frame. Two pairs of stamping camel bend groups for bending and processing the hollow pipes, two pairs of long groove milling groups for milling grooves and processing the hollow pipes and two pairs of water hole flushing groups for punching and processing the hollow pipes are arranged on the adjacent sides of the stamping backrest bend group and the supporting base; according to the multi-procedure synchronous machining device for the hollow pipe, multi-procedure synchronous machining of the hollow pipe is achieved, the number of workers needed for machining the hollow pipe is reduced, and the utilization rate of human resources is increased.

Description

Technical Field

[0001] This utility model belongs to the field of hollow tube bending technology, and in particular, it relates to a hollow tube bending processing device. Background Technology

[0002] The process of processing hollow tubes into the front leg tubes of folding chairs requires the use of a bending processing device. The bending processing device bends, punches holes, and mills grooves in the front leg of the folding chair, so that the hollow tube is bent to a specified angle, providing conditions for the assembly of the folding chair.

[0003] When processing hollow tubes, existing processing equipment often requires multiple processes for bending, punching, and milling. Since so many processes cannot be completed at once, multiple workers are needed to work simultaneously, which wastes human resources. Utility Model Content

[0004] The purpose of this invention is to provide a hollow tube bending processing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hollow tube bending processing device, comprising a support frame, four vertical rods for providing support welded to the bottom surface of the support frame, two horizontal rods welded to adjacent sides of the vertical rods, a stamped back bend assembly for bending hollow tubes and a support base for limiting the position of the hollow tubes respectively installed on the top surface of the support frame, two pairs of stamped camel bend assemblies for bending hollow tubes, two pairs of milled long groove assemblies for milling hollow tubes, and two pairs of punched drainage hole assemblies for punching hollow tubes are arranged adjacent to the stamped back bend assembly and the support base, the two pairs of stamped camel bend assemblies, the milled long groove assemblies and the punched drainage hole assemblies are symmetrically arranged adjacent to the stamped back bend assembly and the support base, the support base includes a base plate and two L-shaped shielding plates for shielding hollow tubes, the bottom surfaces of the two shielding plates are fixedly connected to the base plate.

[0006] Preferably, the stamped backrest bending assembly includes a mounting base, with two limiting plates welded to the top surface of the mounting base, and mounting plates welded to the adjacent sides of the two limiting plates. A hydraulic cylinder is embedded in the side of the mounting plate.

[0007] Preferably, the moving end of the hydraulic cylinder is welded with a bending plate for bending the hollow tube, and the bottom ends of the bending plate are welded with a sliding plate. The bottom surface of the sliding plate is embedded with a sliding rail, and the bottom surfaces of the two sliding rails are welded to the mounting base.

[0008] Preferably, the stamped camel bend assembly includes a fixed plate and a connecting plate. The top surface of the fixed plate is welded to the connecting plate, and a second hydraulic cylinder is embedded in the side of the connecting plate. The moving end of the second hydraulic cylinder is welded with a second bending plate for bending hollow tubes.

[0009] Preferably, a sliding plate is welded to the bottom surface of the curved plate, a slide rail is slidably connected to the bottom surface of the sliding plate, the bottom surface of the slide rail is welded to the fixed plate, and the milling groove assembly includes an inclined plate and a milling cutter for milling grooves in hollow tubes.

[0010] Preferably, a movable block is fixedly connected to the top surface of the milling cutter, a limit strip is slidably connected to the top surface of the movable block, a movable plate is welded to the top surface of the limit strip, and the bottom surface of the movable plate is slidably connected to the inclined plate.

[0011] Preferably, a connecting block is welded to the end face of the movable plate, a hydraulic cylinder three is welded to the side of the connecting block, a vertical plate one is provided at the fixed end of the hydraulic cylinder three, and an extension plate is welded to the bottom surface of the vertical plate one.

[0012] Preferably, the end face of the extension plate is welded to the inclined plate, the end face of the moving block is welded with a hydraulic cylinder four, the fixed end of the hydraulic cylinder four is provided with a vertical plate two, and the side of the vertical plate two is welded to the moving plate.

[0013] Preferably, two support plates are welded to the bottom surface of the inclined plate, a fixing block is welded to the centrifugal side of the two support plates, and a clamping mechanism for clamping and fixing the hollow tube is provided on the adjacent side of the two support plates.

[0014] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0015] This hollow tube bending processing device features a stamping backrest bending group and two stamping camel bend groups to bend the hollow tubes, achieving bending processing of the hollow tubes and shaping processing of the front leg tubes of folding chairs. The supporting base provides shielding for the hollow tubes, preventing wobbling and displacement during bending processing and improving the structural stability of the device components. Simultaneously, the milling groove group and the punching drainage hole group mill grooves and punch holes in the front leg tubes of folding chairs, respectively, enabling multi-process simultaneous processing of hollow tubes by the bending processing device. This reduces the number of workers required for bending the front leg tubes of folding chairs, improves the utilization rate of human resources, and prevents waste of human resources.

[0016] This hollow tube bending processing device uses a hydraulic cylinder to provide power, causing a bending plate to move along the top surface of two limiting plates to bend the hollow tube. A sliding plate moves along the path of a slide rail, and a hydraulic cylinder further drives the bending plate to move along the path of the slide rail, improving the structural stability of the device components, preventing wobbling and deviation, and improving the processing quality of the hollow tube. Hydraulic cylinders three and four provide power to move the time-shifting block laterally and longitudinally, enabling the milling cutter to mill grooves into the hollow tube. The inclined plate is tilted, reducing the need for hydraulic cylinders and other driving equipment for the longitudinal movement of the milling cutter, thus improving the functional and structural stability of the device. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art 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 from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the stamped backrest bending assembly of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the stamped camel bend assembly of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the milled long groove assembly of this utility model;

[0022] Figure 5 For the present utility model Figure 4 Enlarged view of the structure at point A in the middle;

[0023] Figure 6 This is a schematic diagram of the structure of the support base of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] In the diagram: 1. Support frame; 2. Stamped backrest bend assembly; 3. Stamped camel bend assembly; 4. Milled long groove assembly; 5. Drain hole punching assembly; 6. Support base; 7. Mounting seat; 8. Limiting plate; 9. Mounting plate; 10. Hydraulic cylinder one; 11. Slide plate one; 12. Slide rail one; 13. Bend plate one; 14. Fixing plate; 15. Connecting plate; 16. Hydraulic cylinder two; 17. Bend plate two; 18. Slide plate two; 19. Slide rail two; 20. Support plate; 21. Inclined plate; 22. Extension plate; 23. Vertical plate one; 24. Hydraulic cylinder three; 25. Connecting block; 26. Moving plate; 27. Limiting strip; 28. Moving block; 29. ​​Milling cutter; 30. Hydraulic cylinder four; 31. Vertical plate two; 32. Clamping mechanism; 33. Base plate; 34. Baffle plate; 35. Fixing block. Detailed Implementation

[0026] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0027] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0028] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0029] To address the issue of wasted human resources caused by using multiple processes to process hollow tubes in hollow tube bending equipment, please refer to [link to relevant documentation]. Figures 1 to 6 The structure of the device body includes a support frame 1. Four vertical rods for support are welded to the bottom surface of the support frame 1. Horizontal rods are welded to the adjacent sides of two vertical rods. The four horizontal rods are located between two adjacent vertical rods, providing support and fixation for the support frame 1. A stamping back bend assembly 2 for bending hollow tubes and a support base 6 for limiting the position of the hollow tubes are respectively installed on the top surface of the support frame 1, so that the stamping back bend assembly 2 and the support base 6 are detachably connected to the top surface of the support frame 1 by bolts.

[0030] Two pairs of stamped camel bend groups 3 for bending hollow tubes and two pairs of milling groove groups 4 for milling hollow tubes are arranged on the adjacent sides of the stamped backrest bending group 2 and the support base 6, and two pairs of punching hole groups 5 for punching hollow tubes. The two pairs of stamped camel bend groups 3, milling groove groups 4 and punching hole groups 5 are symmetrically arranged on the adjacent sides of the stamped backrest bending group 2 and the support base 6. The two stamped camel bend groups 3, milling groove groups 4 and punching hole groups 5 are all detachably connected to the top surface of the support frame 1 by bolts, which improves the structural stability of the device components. The hollow tube is bent by the stamped backrest bending group 2 and the two stamped camel bend groups 3, thereby making the hollow tube into the front leg tube of the folding chair.

[0031] The hollow tube is milled and punched by the milling groove group 4 and the flushing hole group 5 respectively, realizing the simultaneous processing of multiple processes of hollow tube by the device. This reduces the number of workers required for processing hollow tube, improves the utilization rate of human resources, and prevents the waste of human resources. The support base 6 includes a base plate 33 and two L-shaped shielding plates 34 for shielding hollow tube. The bottom surfaces of the two shielding plates 34 are fixedly connected to the base plate 33. The bottom surface of the base plate 33 is detachably connected to the support frame 1 by bolts. The two shielding plates 34 provide shielding and fixing functions for hollow tube, initially preventing the phenomenon of shaking and displacement when hollow tube is bent.

[0032] The stamped backrest bending assembly 2 includes a mounting base 7. The bottom surface of the mounting base 7 is detachably connected to the support frame 1 by bolts. Two limiting plates 8 are welded to the top surface of the mounting base 7. Mounting plates 9 are welded to the adjacent sides of the two limiting plates 8. A hydraulic cylinder 10 is embedded in the side of the mounting plate 9. A through groove is opened on the side of the mounting plate 9. The inner wall of the through groove of the mounting plate 9 is detachably connected to the hydraulic cylinder 10 by bolts. A bending plate 13 for bending hollow tubes is welded to the moving end of the hydraulic cylinder 10. The moving end of the hydraulic cylinder 10 drives the bending plate 13 to move along the top of the two limiting plates 8 to realize the bending process of the hollow tube. Slide plates 11 are welded to both ends of the bottom of the bending plate 13. A slide rail 12 is slidably connected to the bottom surface of the slide plate 11. The slide plate 11 moves along the path of the slide rail 12 to enhance the movement stability of the bending plate 13.

[0033] Two slide rails 12 are welded to the mounting base 7 on their bottom surfaces. The stamped camel bend assembly 3 includes a fixed plate 14 and a connecting plate 15. The top surface of the fixed plate 14 is welded to the connecting plate 15. The bottom surface of the fixed plate 14 is detachably connected to the support frame 1 by bolts. A hydraulic cylinder 16 is embedded in the side of the connecting plate 15. A through groove is opened on the side of the connecting plate 15. The inner wall of the through groove of the connecting plate 15 is detachably connected to the hydraulic cylinder 16 by bolts. A bending plate 17 for bending hollow tubes is welded to the moving end of the hydraulic cylinder 16. A sliding plate 18 is welded to the bottom surface of the bending plate 17. A slide rail 19 is slidably connected to the bottom surface of the sliding plate 18. During the movement of the moving end of the hydraulic cylinder 16, the bending plate 17 is pushed to move, so that the bending plate 17 bends the hollow tube. At the same time, the sliding plate 18 moves along the path of the slide rail 19 to enhance the movement stability of the bending plate 17. The bottom surface of the slide rail 19 is welded to the fixed plate 14.

[0034] The milling groove assembly 4 includes an inclined plate 21 and a milling cutter 29 for milling grooves in hollow tubes. A movable block 28 is fixedly connected to the top surface of the milling cutter 29. A limit strip 27 is slidably connected to the top surface of the movable block 28, allowing the movable block 28 to move along the path of the limit strip 27. A movable plate 26 is welded to the top surface of the limit strip 27. The bottom surface of the movable plate 26 is slidably connected to the inclined plate 21, so that the movable plate 26, which slides on the top surface of the inclined plate 21, tilts synchronously with the inclined plate 21, thereby realizing the flexible lateral movement of the movable block 28. Under the action of the inclined structure of the inclined plate 21, the milling cutter 29 moves longitudinally during the lateral movement to mill grooves in the hollow tube. This reduces the hydraulic cylinders and other drive equipment required for longitudinal movement, reduces the energy consumption of the drive equipment, and improves the environmental friendliness of the device. A connecting block 25 is welded to the end face of the movable plate 26.

[0035] A hydraulic cylinder 24 is welded to the side of the connecting block 25. A vertical plate 23 is installed at the fixed end of the hydraulic cylinder 24. A through groove is opened on the side of the vertical plate 23. The inner wall of the through groove of the vertical plate 23 is detachably connected to the moving end of the hydraulic cylinder 24 by bolts. An extension plate 22 is welded to the bottom surface of the vertical plate 23. The end face of the extension plate 22 is welded to the inclined plate 21. A hydraulic cylinder 30 is welded to the end face of the moving block 28. A vertical plate 31 is installed at the fixed end of the hydraulic cylinder 30. A through groove is opened on the side of the vertical plate 31. The inner wall of the through groove of the vertical plate 31 is detachably connected to the fixed end of the hydraulic cylinder 30 by bolts. The side of the vertical plate 31 is connected to the moving plate 24 by bolts. 26 Welding: Two support plates 20 are welded to the bottom surface of the inclined plate 21. Fixing blocks 35 are welded to the centrifugal side of the two support plates 20. The bottom surfaces of the two fixing blocks 35 are detachably connected to the support frame 1 by bolts. Under the power provided by the hydraulic cylinder 4 30 and hydraulic cylinder 3 24, the milling cutter 29 performs milling on the hollow tube during its movement. Clamping mechanisms 32 for clamping and fixing the hollow tube are provided on the adjacent sides of the two support plates 20. The clamping mechanisms 32 are detachably connected to the adjacent sides of the two support plates 20 by bolts. The clamping mechanisms 32 clamp and fix the hollow tube to prevent shaking and displacement during the processing of the hollow tube.

[0036] Hydraulic cylinders 10, 16, 24, and 30 are all existing technologies. Their working principles, dimensions, and models are irrelevant to the function of this application, so they will not be described in detail. The control method of this utility model is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0037] Working principle

[0038] When using this hollow tube bending processing device, the user makes the two ends of the hollow tube abut against the two baffles 34 to restrict the position of the U-shaped hollow tube. The top and sides of the hollow tube are bent by a stamping backrest bending group 2 and two stamping camel bending groups 3 to shape the hollow tube into the front leg tube of a folding chair. The hollow tube is clamped and fixed by the clamping mechanism 32 of the milling groove group 4. At the same time, the milling groove group 4 mills grooves on both sides of the hollow tube, and the two punching hole groups 5 punch holes on both sides of the hollow tube.

[0039] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] 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 hollow tube bending processing device, comprising a support frame (1), characterized in that: The support frame (1) has four vertical rods welded to its bottom surface to provide support. Two vertical rods are welded to the adjacent sides of each other. The top surface of the support frame (1) is respectively equipped with a stamped back bend assembly (2) for bending hollow tubes and a support base (6) for limiting the position of hollow tubes. The stamped back bend assembly (2) and the support base (6) are provided with two pairs of stamped camel bend assemblies (3) for bending hollow tubes, two pairs of milled long groove assemblies (4) for milling hollow tubes, and two pairs of punching and draining hole assemblies (5) for punching hollow tubes. The two pairs of stamped camel bend assemblies (3), milled long groove assemblies (4), and punching and draining hole assemblies (5) are symmetrically arranged on the adjacent sides of the stamped back bend assembly (2) and the support base (6). The support base (6) includes a base plate (33) and two L-shaped shielding plates (34) for shielding the hollow tube, with the bottom surfaces of the two shielding plates (34) fixedly connected to the base plate (33).

2. The hollow tube bending processing device according to claim 1, characterized in that: The stamped backrest bending assembly (2) includes a mounting base (7), on which two limiting plates (8) are welded on the top surface. Mounting plates (9) are welded on adjacent sides of the two limiting plates (8), and a hydraulic cylinder (10) is embedded in the side of the mounting plate (9).

3. The hollow tube bending processing device according to claim 2, characterized in that: The moving end of the hydraulic cylinder (10) is welded with a bending plate (13) for bending hollow tubes. The bottom ends of the bending plate (13) are welded with a sliding plate (11). The bottom surface of the sliding plate (11) is inlaid with a sliding rail (12). The bottom surfaces of the two sliding rails (12) are welded to the mounting base (7).

4. The hollow tube bending processing device according to claim 3, characterized in that: The stamped camel bend assembly (3) includes a fixed plate (14) and a connecting plate (15). The top surface of the fixed plate (14) is welded to the connecting plate (15). A hydraulic cylinder (16) is embedded in the side of the connecting plate (15). A bending plate (17) for bending hollow tubes is welded to the moving end of the hydraulic cylinder (16).

5. The hollow tube bending processing device according to claim 4, characterized in that: The bottom surface of the curved plate 2 (17) is welded with a sliding plate 2 (18), and the bottom surface of the sliding plate 2 (18) is slidably connected with a slide rail 2 (19). The bottom surface of the slide rail 2 (19) is welded to the fixed plate (14). The milling groove assembly (4) includes an inclined plate (21) and a milling cutter (29) for milling grooves in hollow tubes.

6. The hollow tube bending processing device according to claim 5, characterized in that: The top surface of the milling cutter (29) is fixedly connected to a movable block (28), and the top surface of the movable block (28) is inlaid with a sliding connection of a limit strip (27). The top surface of the limit strip (27) is welded with a movable plate (26), and the bottom surface of the movable plate (26) is slidably connected to the inclined plate (21).

7. The hollow tube bending processing device according to claim 6, characterized in that: The movable plate (26) has a connecting block (25) welded to its end face, and a hydraulic cylinder three (24) is welded to the side of the connecting block (25). A vertical plate one (23) is provided at the fixed end of the hydraulic cylinder three (24), and an extension plate (22) is welded to the bottom surface of the vertical plate one (23).

8. The hollow tube bending processing device according to claim 7, characterized in that: The end face of the extension plate (22) is welded to the inclined plate (21), and the end face of the moving block (28) is welded with a hydraulic cylinder four (30). The fixed end of the hydraulic cylinder four (30) is provided with a vertical plate two (31), and the side of the vertical plate two (31) is welded to the moving plate (26).

9. A hollow tube bending processing device according to claim 8, characterized in that: Two support plates (20) are welded to the bottom surface of the inclined plate (21). A fixing block (35) is welded to the centrifugal side of the two support plates (20). A clamping mechanism (32) for clamping and fixing the hollow tube is provided on the adjacent side of the two support plates (20).

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