Efficient bending equipment for square and rectangular pipes

Abstract

The utility model provides efficient bending equipment for square and rectangular pipes, and belongs to the technical field of machining. The efficient bending equipment for the square and rectangular pipes comprises a table top and the square and rectangular pipes, the table top is provided with a supporting piece, an abutting piece and a bending piece, the square and rectangular pipes are stacked between the supporting piece and the abutting piece, the bending piece abuts against all the square and rectangular pipes, the bending piece rotates around the supporting piece, the abutting piece comprises an abutting base, and the abutting base is provided with an abutting groove. The abutting base is fixedly connected with the table top, abutting blocks are connected to the abutting base in a sliding mode and correspond to the square and rectangular pipes, and piston rods are evenly distributed on the abutting base. The square and rectangular pipe bending device has the advantages that a plurality of square and rectangular pipes are stacked at a time, the abutting blocks corresponding to the square and rectangular pipes in height are pushed by the piston rod to be attached to the square and rectangular pipes in a self-adaptive mode, it is ensured that each square and rectangular pipe can obtain the same abutting force, it is ensured that the square and rectangular pipes cannot be loosened in the bending process, and therefore the machining efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of machining technology, and more specifically, to a high-efficiency bending device for square and rectangular tubes. Background Technology

[0002] Square and rectangular tubes, also known as flat tubes, flat square tubes, or square flat tubes, are hollow long steel materials. They are lighter in weight while maintaining the same bending and torsional strength. They are widely used in the manufacture of mechanical parts and engineering structures. Bending machines are required for the bending process of square and rectangular tubes.

[0003] In response, Chinese patent application number CN202322406901.8 discloses a square and rectangular tube bending device. This solution mainly reduces the friction between the extrusion roller and the outer surface of the square and rectangular tube by setting an extrusion roller, thus preventing the generation of large amounts of heat and preventing the square and rectangular tube from wearing and cracking, thereby avoiding property damage. At the same time, the extrusion roller can reduce friction and reduce the wear on the motor.

[0004] However, in the process of implementing the technical solutions in the embodiments of this application, the inventors of this utility model discovered that the above-mentioned technology has at least the following technical problems:

[0005] Only one square or rectangular tube can be bent at a time, which is inefficient. Utility Model Content

[0006] To overcome the above deficiencies, this application provides a high-efficiency bending device for square and rectangular tubes, which aims to improve the problems mentioned in the background art.

[0007] This application provides a high-efficiency bending device for rectangular tubes, including a table and rectangular tubes. A support, a clamping member, and a bending member are arranged on the table. Rectangular tubes are stacked between the support and the clamping member. The bending member abuts against all the rectangular tubes and rotates around the support. The clamping member includes a stop seat, which is fixedly connected to the table. A stop block is slidably connected to the stop seat, corresponding to each rectangular tube. Piston rods are evenly distributed on the stop seat, and the rod cavities of all the piston rods are interconnected. The telescopic end of the piston rod abuts against the corresponding stop block.

[0008] In one specific implementation, the support includes a base and a semi-cylinder, the semi-cylinder is fixedly connected to the base, the base is slidably connected to the tabletop with a dovetail joint, and a spring pin is provided on the base to be pinned to the tabletop.

[0009] In the above process, the bent part is plastically bent against the square and rectangular tube along the semi-cylindrical shape. The spring pin is unlocked, and the support and semi-cylindrical part can be disassembled and replaced, making it convenient to replace semi-cylindrical parts of different diameters.

[0010] In one specific implementation, the support further includes a support plate, which is fixedly connected to the support and the semi-cylinder.

[0011] In the above process, the support plate, semi-cylinder and support are formed as one piece, so that the support plate can be closer to the semi-cylinder, providing better support and improving the structural strength.

[0012] In one specific implementation, the support is provided with an oil groove, which is connected to the tail end of all rod cavities. A cover plate is provided on the oil groove, and an oil pipe is fixedly connected to the cover plate.

[0013] In the above implementation process, the support has multiple rod cavities for inserting the piston rod. The piston rod has a limiting step to prevent it from popping out from the front end of the support. When the cover plate is opened, the piston rod is inserted into the piston hole, and then the cover plate is closed. In this way, all the rod cavities are interconnected and the ejection amount can be adaptively adjusted. In this embodiment, the platform has multiple threaded holes, so the support can be adjusted back and forth and the corresponding threaded hole can be selected for fixing, thereby adapting to square and rectangular tubes with a wider range of widths.

[0014] In one specific implementation, the support has grooves on both sides, and the abutment slides along the grooves.

[0015] In the above process, the abutment is stuck in the groove and can only move back and forth. The clamping thickness can be adjusted to accommodate square and rectangular tubes of different thicknesses. When replacing, the abutment is removed directly from the front end. The abutment of the corresponding height is selected according to the height of the square and rectangular tube and inserted from the front end. In this way, the abutment can move back and forth according to the different thicknesses of the square and rectangular tubes, thereby applying the same pressure to each square and rectangular tube. This avoids the situation where individual square and rectangular tubes lose clamping force due to small thickness caused by processing errors, and thus move around during bending.

[0016] In one specific implementation, the bending component includes a rotating base, which is rotatably connected to the table surface. A roller frame is telescopically connected to the rotating base, and a pressure roller is rotatably connected to the roller frame.

[0017] In the above process, when the turntable rotates, the pressure rollers on the roller frame roll along the rectangular tube, thereby bending the rectangular tube along the semi-cylinder.

[0018] In one specific implementation, a guide rod is fixedly connected to the roller frame, the guide rod is slidably connected to the rotary seat, and a hydraulic cylinder is provided on the rotary seat, with the hydraulic cylinder having a telescopic end.

[0019] In the above process, the pressure roller is pressed against the semi-cylinder by a hydraulic cylinder. The extension and retraction of the hydraulic cylinder can also be adapted to square and rectangular tubes of different thicknesses. The guide rod is used to stabilize the posture of the roller frame.

[0020] In one specific implementation, the bending component further includes a motor and gears, the motor being mounted under the platform, and the output end of the motor being poweredly connected to the rotary table through the meshing of the two gears.

[0021] In the above process, the output end of the geared motor drives the rotary table to rotate through the meshing of two bevel gears, thereby causing the pressure roller to bend.

[0022] Compared with the prior art, the beneficial effects of this application are: multiple square and rectangular tubes are stacked at one time, and multiple abutments corresponding to the height of the square and rectangular tubes are pushed by the piston rod to adaptively fit the thickness of the square and rectangular tubes, ensuring that each square and rectangular tube can obtain the same clamping force, ensuring that the square and rectangular tubes will not loosen during the bending process, thereby improving processing efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the high-efficiency bending equipment for square and rectangular tubes provided in the embodiments of this application;

[0025] Figure 2 A schematic diagram illustrating the connection relationship between the rectangular tube and the clamping member provided in an embodiment of this application;

[0026] Figure 3 A schematic diagram of the clamping member structure provided for an embodiment of this application;

[0027] Figure 4 A schematic diagram of the bent component structure provided for an embodiment of this application.

[0028] In the diagram: 10-Tabletop; 20-Square and rectangular tube; 30-Support component; 31-Support; 32-Semi-cylinder; 33-Spring pin; 34-Support plate; 40-Clamping component; 41-Clamping seat; 42-Clamping block; 43-Piston rod; 44-Cover plate; 45-Oil pipe; 50-Bending component; 51-Rotating seat; 52-Roller frame; 53-Pressure roller; 54-Guide rod; 55-Hydraulic cylinder; 56-Motor; 57-Gear. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0030] Please see Figures 1-4This application provides a high-efficiency bending device for rectangular tubes, including a table 10 and rectangular tubes 20. A support member 30, a clamping member 40 and a bending member 50 are provided on the table 10. Rectangular tubes 20 are stacked between the support member 30 and the clamping member 40. The bending member 50 is clamped to all rectangular tubes 20 and rotates around the support member 30. The clamping member 40 includes a seat 41, which is fixedly connected to the table 10. A block 42 is slidably connected to the seat 41 and corresponds to each rectangular tube 20. Piston rods 43 are evenly distributed on the seat 41. The rod cavities of all piston rods 43 are interconnected, and the telescopic end of the piston rod 43 is clamped to the corresponding block 42. In this process, multiple rectangular tubes 20 are stacked at one time. Multiple abutments 42, which are at the same height as the rectangular tubes 20, are pushed by the piston rod 43 to adaptively fit the thickness of the rectangular tubes 20, ensuring that each rectangular tube 20 can obtain the same clamping force. This ensures that the rectangular tubes 20 will not loosen during the bending process, thereby improving processing efficiency.

[0031] Please see Figures 1-4 The support member 30 includes a support 31 and a semi-cylinder 32. The semi-cylinder 32 is fixedly connected to the support 31, and the support 31 is slidably connected to the table surface 10 via a dovetail joint. A spring pin 33 is provided on the support 31 and pinned to the table surface 10. The bent member 50 is plastically bent against the rectangular tube 20 along the semi-cylinder 32. By unlocking the spring pin 33, the support 31 and the semi-cylinder 32 can be disassembled and replaced, facilitating the replacement of semi-cylinders 32 with different diameters.

[0032] Please see Figures 1-4 The support member 30 also includes a support plate 34, which is fixedly connected to the support 31 and the semi-cylinder 32. The support plate 34, the semi-cylinder 32 and the support 31 are integrally formed, so that the support plate 34 can be closer to the semi-cylinder 32, providing better support and improving the structural strength.

[0033] Please see Figures 1-4 The support 31 has an oil groove that connects to the tail ends of all rod chambers. A cover plate 44 is provided on the oil groove, and an oil pipe 45 is fixedly connected to the cover plate 44. The support 31 has multiple rod chambers for inserting piston rods 43. The piston rods 43 have a limiting step to prevent them from protruding from the front end of the support 31. When the cover plate 44 is opened, the piston rods 43 are inserted into the piston holes, and then the cover plate 44 is closed. In this way, all rod chambers are interconnected, and the ejection amount can be adaptively adjusted. In this embodiment, the platform 10 has multiple threaded holes, so the support 31 can be adjusted back and forth and the corresponding threaded holes can be selected for fixing, thereby adapting to square and rectangular tubes 20 with a wider range of widths.

[0034] Please see Figures 1-4The support 31 has grooves on both sides, and the abutment 42 slides along the grooves. The abutment 42 is stuck in the groove and can only move back and forth, which can adjust the clamping thickness to accommodate square and rectangular tubes 20 of different thicknesses. When replacing, the abutment 42 is removed directly from the front end, and the abutment 42 of the corresponding height is selected according to the height of the square and rectangular tube 20 and inserted from the front end. In this way, the abutment 42 can move back and forth according to the different thicknesses of the square and rectangular tubes 20, thereby applying the same pressure to each square and rectangular tube 20 and preventing individual square and rectangular tubes 20 from losing clamping force due to small thickness caused by processing errors, and thus causing them to move during bending.

[0035] Please see Figures 1-4 The bending component 50 includes a turntable 51, which is rotatably connected to the table 10. A roller frame 52 is telescopically connected to the turntable 51, and a pressure roller 53 is rotatably connected to the roller frame 52. When the turntable 51 rotates, the pressure roller 53 on the roller frame 52 rolls along the rectangular tube 20, thereby bending the rectangular tube 20 along the semi-cylinder 32.

[0036] Please see Figures 1-4 A guide rod 54 is fixedly connected to the roller frame 52. The guide rod 54 is slidably connected to the rotating seat 51. A hydraulic cylinder 55 is provided on the rotating seat 51. The hydraulic cylinder 55 has a telescopic end. The hydraulic cylinder 55 presses the pressure roller 53 against the semi-cylinder 32. The telescopic movement of the hydraulic cylinder 55 can also be adapted to square and rectangular tubes 20 of different thicknesses. The guide rod 54 is used to stabilize the posture of the roller frame 52.

[0037] Please see Figures 1-4 The bending component 50 also includes a motor 56 and gears 57. The motor 56 is mounted under the table 10, and its output end is connected to the rotary table 51 via the meshing of two gears 57. The output end of the geared motor 56 drives the rotary table 51 to rotate via the meshing of two bevel gears 57, thereby driving the pressure roller 53 to perform the bending action.

[0038] The working principle of this high-efficiency square and rectangular tube bending equipment is as follows: Based on the height of the square and rectangular tube 20, a corresponding abutment block 42 is selected and inserted from the front end. Multiple square and rectangular tubes 20 of the same specification are stacked between the support plate 34 and the abutment block 42. The oil pipe 45 is connected to an external hydraulic device, applying the same pressure to all piston rods 43. The piston rods 43 push out the abutment block 42, and each abutment block 42 individually abuts against its corresponding square and rectangular tube 20. In this way, each abutment block 42 can adapt to its own position, and with all rod cavities connected and all piston rods 43 exerting the same force, the same clamping force is achieved on all square and rectangular tubes 20. To ensure that no loosening occurs during bending, the output end of the reduction motor 56 drives the rotating seat 51 to rotate through the meshing of two bevel gears 57, causing the pressure roller 53 to roll and apply pressure on the rectangular tube 20, bending it along the semi-cylinder 32. In summary, multiple rectangular tubes 20 are stacked at one time, and multiple abutments 42 corresponding to the height of the rectangular tube 20 are pushed by the piston rod 43 to adaptively fit the thickness of the rectangular tube 20, ensuring that each rectangular tube 20 receives the same clamping force, ensuring that the rectangular tube 20 does not loosen during bending, thereby improving processing efficiency.

[0039] The above are merely embodiments of this application and are not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, improvements, or equivalent substitutions made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

Claims

1. A high-efficiency bending device for square and rectangular tubes, characterized in that, The device includes a tabletop (10) and rectangular tubes (20). The tabletop (10) is provided with a support member (30), a clamping member (40), and a bending member (50). Rectangular tubes (20) are stacked between the support member (30) and the clamping member (40). The bending member (50) abuts against all the rectangular tubes (20) and rotates around the support member (30). The clamping member (40) includes a stop seat (41). The stop seat (41) is fixedly connected to the tabletop (10). A stop block (42) is slidably connected to the stop seat (41) and corresponds to each rectangular tube (20). Piston rods (43) are evenly distributed on the stop seat (41). The rod cavities of all the piston rods (43) are interconnected. The telescopic end of the piston rod (43) abuts against the corresponding stop block (42).

2. The high-efficiency bending equipment for square and rectangular tubes according to claim 1, characterized in that, The support member (30) includes a support (31) and a semi-cylinder (32). The semi-cylinder (32) is fixedly connected to the support (31). The support (31) is slidably connected to the table surface (10) with a dovetail. A spring pin (33) is provided on the support (31) and pinned to the table surface (10).

3. The high-efficiency bending equipment for square and rectangular tubes according to claim 2, characterized in that, The support member (30) also includes a support plate (34), which is fixedly connected to the support (31) and the semi-cylinder (32).

4. The high-efficiency bending equipment for square and rectangular tubes according to claim 3, characterized in that, The support (31) is provided with an oil groove, which is connected to the tail end of all rod cavities. A cover plate (44) is provided on the oil groove, and an oil pipe (45) is fixedly connected to the cover plate (44).

5. The high-efficiency bending equipment for square and rectangular tubes according to claim 4, characterized in that, The support (31) has grooves on both sides, and the abutment (42) slides along the grooves.

6. The high-efficiency bending equipment for square and rectangular tubes according to claim 5, characterized in that, The bending component (50) includes a rotating base (51), which is rotatably connected to the table (10). A roller frame (52) is telescopically connected to the rotating base (51), and a pressure roller (53) is rotatably connected to the roller frame (52).

7. The high-efficiency bending equipment for square and rectangular tubes according to claim 6, characterized in that, A guide rod (54) is fixedly connected to the roller frame (52). The guide rod (54) is slidably connected to the rotating seat (51). A hydraulic cylinder (55) is provided on the rotating seat (51). The extension and retraction end of the hydraulic cylinder (55) is also provided.

8. The high-efficiency bending equipment for square and rectangular tubes according to claim 7, characterized in that, The bending component (50) also includes a motor (56) and gears (57). The motor (56) is mounted under the platform (10), and the output end of the motor (56) is poweredly connected to the rotary table (51) through the meshing of the two gears (57).

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