Metal round pipe bending machine with heating function

Abstract

The invention relates to the technical field of metal round pipe machining equipment, and discloses a metal round pipe bending machine with a heating function, which comprises a rack, an assembling mechanism is arranged at the front end of the rack, a bending mechanism is arranged at the rear end of the rack, and the rack comprises two mounting discs which are symmetrically arranged up and down; and two U-shaped frames are symmetrically and fixedly connected between the rear side walls of the two mounting discs. The adjustable metal round pipe assembling mechanism is arranged and comprises the two rotatable guide wheels with the fixed stations and the two rotatable guide wheels with the front station and the rear station adjustable, after the front station and the rear station are adjusted, fastening and limiting can be conducted through a locking assembly, and then the adjustable metal round pipe assembling mechanism can be adjusted to adapt to pipes of different specifications; therefore, the bending production requirements of various small-batch metal round pipes are met.

Description

Technical Field

[0001] The present invention relates to the technical field of metal round tube processing equipment, and particularly to a metal round tube bending machine with a heating function. Background Art

[0002] When processing metal round tubes, a bending machine is required. Based on the plasticity of metal materials, under the drive of a transmission system, a continuous and uniform pressure is applied to the round tube through a bending die, causing plastic deformation of the local material of the round tube, so as to be bent into the required shape. It includes a hydraulic pipe bender, which uses a hydraulic system as a power source, and pushes a piston or an oil cylinder through hydraulic oil to generate a powerful pressure to bend the round tube, and can process round tubes with larger diameters and wall thicknesses.

[0003] The existing metal round tube bending machines still have the following problems in use: their equipment has poor adaptability. The assembly mechanism of the metal round tube is often of a fixed size, and it can only process single-specification pipes, making it difficult to meet the production requirements of multi-variety and small-batch. It is difficult to bend high-hardness materials (such as stainless steel and aluminum alloy), and it is easy to cause pipe cracking or equipment overload. Summary of the Invention

[0004] (I) Technical Problems to be Solved In view of the deficiencies of the prior art, the present invention provides a metal round tube bending machine with a heating function, which solves the problems raised in the background art.

[0005] (II) Technical Solutions To achieve the above object, the present invention provides the following technical solutions: A metal round tube bending machine with a heating function, including a frame. An assembly mechanism is arranged at the front end of the frame, and a bending mechanism is arranged at the rear end of the frame. The frame includes two mounting plates arranged symmetrically up and down. Two U-shaped frames are symmetrically fixedly connected between the rear side walls of the two mounting plates. Two shaft holes are symmetrically opened between the upper and lower side walls at the rear end of the mounting plate, and a strip-shaped groove is opened between the upper and lower side walls at the front end of the mounting plate. The assembly mechanism includes a connecting shaft rotatably connected in the shaft hole, and a first rotating guide wheel is rotatably connected between every two connecting shafts arranged symmetrically up and down. The assembly mechanism further includes a fastening bolt slidably connected in the strip-shaped groove, and a second rotating guide wheel is rotatably connected between every two fastening bolts arranged symmetrically up and down.

[0006] As a further scheme of the present invention: The assembly mechanism and the bending mechanism are configured with a heating mechanism. An assembly groove is opened between the central positions of the upper and lower side walls of the mounting plate. The heating mechanism includes a heater fixedly installed in the assembly groove, and a heating head is arranged at the center position of each of the opposite ends of the two heaters.

[0007] As a further solution of the present invention: at the rear ends of the outer side walls of the two U-shaped frames on the separated sides, a mounting seat is fixedly connected to each, and two mounting grooves are symmetrically arranged up and down between the front and rear side walls of the mounting seat.

[0008] As a further solution of the present invention: the bending mechanism includes hydraulic presses fixedly installed at the rear ends of the inner side walls of the two U-shaped frames. A movable shaft is arranged at the front end of the hydraulic press, and a pressing block is fixedly connected to the movable end on the front side of the movable shaft. A control line is fixedly connected to the control end at the rear side of the hydraulic press.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In the present invention, by providing an adjustable metal round tube assembly mechanism, which includes two rotatable guide wheels at fixed stations and also includes two rotatable guide wheels with adjustable front and rear stations. After the front and rear station adjustment work is carried out, it can be fastened and limited through the locking assembly, and then different specifications of pipes can be adjusted and adapted to meet the bending production requirements of multi-variety and small-batch metal round tubes.

[0010] 2. In the present invention, by providing an upper and lower double heating mechanism at the bending part of the metal round tube, which includes two heaters, and heating heads are arranged at the opposite ends of both, the bending part of the metal round tube assembled by the assembly mechanism can be heated. For metal round tubes made of materials with high hardness and poor plasticity such as stainless steel, aluminum alloy, and titanium alloy, after heating (such as heating stainless steel to 600-850 °C), the yield strength of the material drops significantly, and the driving force required for bending can be reduced by 30%-50%, which can avoid the cracking of the pipe or the overload of the equipment caused by cold bending. Description of the Drawings

[0011] Figure 1 is the overall three-dimensional view of the present invention; Figure 2 is the three-dimensional view of the frame of the present invention; Figure 3 is the three-dimensional view of the assembly mechanism of the present invention; Figure 4 is the three-dimensional view of the bending mechanism and the heating mechanism of the present invention.

[0012] In the figure: 1. Frame; 2. Assembly mechanism; 3. Bending mechanism; 4. Heating mechanism; 11. Mounting disc; 12. U-shaped frame; 13. Mounting seat; 14. Mounting groove; 15. Assembly groove; 16. Strip-shaped groove; 17. Axle hole; 21. First rotating guide wheel; 22. Fastening bolt; 23. Second rotating guide wheel; 31. Hydraulic press; 32. Movable shaft; 33. Pressing block; 34. Control line; 41. Heater; 42. Heating head. Detailed Embodiment

[0013] The following further describes the embodiments of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0014] In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0015] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0016] Please refer to Figures 1 to 4 , in the embodiment of the present invention, a metal round tube bending machine with a heating function includes a frame 1. An assembly mechanism 2 is provided at the front end of the frame 1, and a bending mechanism 3 is provided at the rear end of the frame 1. The frame 1 includes two mounting discs 11 arranged symmetrically up and down. Two U-shaped frames 12 are symmetrically and fixedly connected between the rear side walls of the two mounting discs 11. Two shaft holes 17 are symmetrically opened between the upper and lower side walls at the rear end of the mounting disc 11. A strip-shaped groove 16 is opened between the upper and lower side walls at the front end of the mounting disc 11. The assembly mechanism 2 includes a connecting shaft rotatably connected in the shaft hole 17. A first rotating guide wheel 21 is rotatably connected between every two connecting shafts arranged symmetrically up and down. The assembly mechanism 2 further includes a fastening bolt 22 slidably connected in the strip-shaped groove 16. A second rotating guide wheel 23 is rotatably connected between every two fastening bolts 22 arranged symmetrically up and down. An adjustable metal round tube assembly mechanism 2 is integrally provided, which includes two rotatable guide wheels at fixed stations and also includes two rotatable guide wheels with adjustable front and rear stations. After the front and rear station adjustment work is carried out, it can be fastened and limited through a locking component, and then different specifications of pipes can be adjusted and adapted to meet the bending production requirements of multi-variety and small-batch metal round tubes.

[0017] The assembly mechanism 2 and the bending mechanism 3 are provided with a heating mechanism 4. An assembly groove 15 is provided between the center positions of the upper and lower side walls of the mounting plate 11. The heating mechanism 4 includes a heater 41 fixedly installed in the assembly groove 15. A heating head 42 is provided at the center position of the two heaters 41 facing each other. An upper and lower double heating mechanism 4 for the bending of the metal round tube is provided as a whole. The two heaters 41 are provided with a heating head 42 at the facing ends. The bending of the metal round tube assembled by the assembly mechanism 2 can be heated. For metal round tubes made of materials with high hardness and poor plasticity, such as stainless steel, aluminum alloy, and titanium alloy, after heating, such as heating stainless steel to 600-850°C, the yield strength of the material is greatly reduced, and the driving force required for bending can be reduced by 30%-50%, which can avoid pipe cracking or equipment overload caused by cold bending.

[0018] The two U-shaped frames 12 are fixedly connected to a mounting seat 13 at the rear end of the outer side wall on one side, and two mounting grooves 14 are symmetrically provided between the front and rear side walls of the mounting seat 13. The overall metal round tube bending machine can be fixedly installed through the mounting grooves 14 on its two mounting seats 13 in conjunction with the mounting components.

[0019] The bending mechanism 3 includes a hydraulic press 31 fixedly installed at the rear end of the inner wall of the two U-shaped frames 12, a movable shaft 32 is arranged at the front end of the hydraulic press 31, and a pressure block 33 is fixedly connected to the movable end of the front side of the movable shaft 32, and a control line 34 is fixedly connected to the control end of the rear side of the hydraulic press 31. The control host can be connected through the control line 34 to control the operation of the hydraulic press 31, and the pressure block 33 is pushed to move toward the front end through the movable shaft 32 to squeeze the heated metal round tube to perform its bending work.

[0020] The working principle of the present invention is as follows: an adjustable metal round tube assembly mechanism 2 is integrally arranged, which includes two rotatable guide wheels at fixed stations, and also includes two rotatable guide wheels adjustable at front and rear stations. After the front and rear stations are adjusted, the locking assembly can be used to tighten and limit the position, that is, the nut of the fastening bolt 22 is screwed to realize the position limitation of the front rotating guide wheel, and then the mechanism can be adjusted to adapt to pipes of different specifications. The metal round tube to be bent can be inserted between the first rotating guide wheel 21 and the second rotating guide wheel 23 on one side, and passed out between the first rotating guide wheel 21 and the second rotating guide wheel 23 on the other side. At this time, the two heating heads 42 can heat the bending part of the metal round tube assembled by the assembly mechanism 2. After heating, the control host can be connected through the control line 34 to control the hydraulic press 31 to work, and the pressing block 33 is pushed to move toward the front end through the movable shaft 32 to squeeze the heated metal round tube to perform its bending work.

[0021] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A metal round tube bending machine with a heating function, comprising a frame (1), an assembly mechanism (2) is arranged at the front end of the frame (1), and a bending mechanism (3) is arranged at the rear end of the frame (1); It is characterized in that: The frame (1) includes two mounting plates (11) arranged symmetrically up and down. Two U-shaped frames (12) are symmetrically and fixedly connected between the rear side walls of the two mounting plates (11). Two shaft holes (17) are symmetrically formed between the upper and lower side walls at the rear end of the mounting plate (11), and a strip-shaped groove (16) is formed between the upper and lower side walls at the front end of the mounting plate (11); The assembly mechanism (2) includes a connecting shaft rotatably connected in the shaft hole (17), and a first rotating guide wheel (21) is rotatably connected between every two connecting shafts arranged symmetrically up and down; The assembly mechanism (2) further includes a fastening bolt (22) slidably connected in the strip-shaped groove (16), and a second rotating guide wheel (23) is rotatably connected between every two fastening bolts (22) arranged symmetrically up and down; The assembly mechanism (2) and the bending mechanism (3) are configured with a heating mechanism (4).

2. The metal round tube bending machine with a heating function according to claim 1, characterized in that: An assembly groove (15) is formed between the center positions of the upper and lower side walls of the mounting plate (11).

3. A metal round tube bending machine with a heating function according to claim 1, characterized in that: The heating mechanism (4) includes a heater (41) fixedly installed in the assembly groove (15).

4. A metal round tube bending machine with a heating function according to claim 1, characterized in that: A heating head (42) is arranged at the center position of each of the opposite ends of the two heaters (41).

5. A metal round tube bending machine with a heating function according to claim 1, characterized in that: A mounting seat (13) is fixedly connected to the outer side wall of each of the rear ends of the two U-shaped frames (12) on the separated side. Two mounting grooves (14) are symmetrically formed between the front and rear side walls of the mounting seat (13).

6. The metal round tube bending machine with a heating function according to claim 1, characterized in that: The bending mechanism (3) includes a hydraulic press (31) fixedly installed on the inner side wall of the rear end of the two U-shaped frames (12).

7. A metal round tube bending machine with a heating function according to claim 6, characterized in that: A movable shaft (32) is arranged at the front end of the hydraulic press (31), and a pressing block (33) is fixedly connected to the movable end on the front side of the movable shaft (32). A control line (34) is fixedly connected to the control end on the rear side of the hydraulic press (31).

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