A metal pipe back elbow bending die

Abstract

The utility model relates to the field of pipe manufacturing, and disclose a metal pipe return elbow bending mould, including bending mould main part, the inner chamber rotation of bending mould main part is provided with the rotating column, the outer ring fixed connection of rotating column has bending assembly, the outer ring fixed connection of rotating column has the fixed frame, the top of fixed frame is provided with electric push rod, the top fixed connection of electric push rod has the fastening seat, this metal pipe return elbow bending mould, will pipe material from the slot put into the bending mould main part, according to the bending arc degree will pipe material put into the bending arc groove in the bending disc of the required arc in bending assembly, after the position of electric push rod is adjusted through the sliding seat in fixed frame, slide rail, utilize fastening seat and clamp pipe material in bending arc groove, open motor drive rotating column together with bending assembly and fixed frame rotation, can realize the bending of pipe material required arc, solved the problem that the existing elbow mould is difficult to control pipe bending arc according to the demand.

Description

Technical Field

[0001] This utility model relates to the field of pipe manufacturing technology, specifically a bending jig for metal pipe bends. Background Technology

[0002] Metal pipes refer to steel pipes with a hollow cross-section, whose length is much greater than their diameter or circumference. They can be classified by cross-sectional shape into circular, square, rectangular, and irregularly shaped steel pipes; and by material into carbon structural steel pipes, low-alloy structural steel pipes, alloy steel pipes, and composite steel pipes.

[0003] Patent CN218340742U discloses a stainless steel elbow pipe fitting manufacturing device, which includes a first worktable and a stainless steel pipe. Hydraulic cylinders are installed on both sides of the first worktable, and a feeding mechanism is installed on the piston rod of the hydraulic cylinder. The feeding mechanism includes a movable frame that is slidably connected to the first worktable. This device feeds the stainless steel pipe during the bending process by setting the hydraulic cylinder to drive the refining mechanism to move. This effectively avoids the bending part of the stainless steel pipe being subjected to excessive force during the bending process, prevents the pipe wall from becoming thinner, and improves product quality.

[0004] However, the device only has a single bending wheel responsible for bending the metal pipe. In reality, the size and angle of the bent metal pipe vary during the manufacturing process, making it difficult to meet the manufacturing needs of the metal pipe bends with just a single bending wheel of the same size. This reduces the practicality of the pipe manufacturing device. To address this issue, a metal pipe bend forming jig is proposed to solve the problem that existing bend jigs cannot control the bending curvature of the pipe according to requirements. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a metal pipe bend bending jig, which solves the aforementioned problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a metal pipe bending jig, comprising a bending jig body, a rotating column rotatably disposed within the inner cavity of the bending jig body, a bending assembly fixedly connected to the outer ring of the rotating column, a fixing frame fixedly connected to the outer ring of the rotating column, an electric push rod disposed at the top of the fixing frame, a fastening seat fixedly connected to the top of the electric push rod, a slide block fixedly connected to the bottom of the electric push rod, a slide rail disposed at the top of the fixing frame, a limiting mechanism disposed within the inner cavity of the bending jig body, a slot being formed through one end of the bending jig body, a motor being fixedly connected to one side of the bending jig body, and the bending assembly comprising multiple bending discs of decreasing diameter fixedly connected, the outer ring of the bending discs having bending arc grooves.

[0009] Preferably, the fixed frame is fixedly connected to the bending assembly, the electric push rod is slidably mounted on the top of the fixed frame using a slide block and a slide rail, and the output shaft of the motor is fixedly connected to the rotating column.

[0010] Preferably, the limiting mechanism includes a hydraulic push rod fixedly connected to the bottom of the inner cavity of the bending die body, a lifting plate fixedly connected to the top of the hydraulic push rod, and two limiting seats symmetrically arranged on the top of the lifting plate.

[0011] Preferably, the opposite surfaces of the limiting seat are provided with limiting arc grooves corresponding to the number of bending arc grooves, and the top of the bottom limiting seat is fixedly connected to an L-shaped fixing frame. Two second electric push rods are symmetrically fixed at the bottom of the L-shaped fixing frame, and the second electric push rods are fixedly connected to the top limiting seat.

[0012] Preferably, the top of the lifting plate is provided with a T-shaped groove, and the inner cavity of the T-shaped groove is provided with a T-shaped block, which is fixedly connected to the bottom limiting seat.

[0013] Preferably, a sealing door is hinged to one side of the bending jig body, and an observation port is provided on one side of the sealing door, with a transparent sealing plate fixedly connected to the inner cavity of the observation port.

[0014] (III) Beneficial Effects

[0015] 1. This metal pipe bending jig allows the pipe to be placed into the main body of the bending jig through the groove. Based on the desired bending arc, the pipe is placed into the bending groove of the bending disc within the bending assembly. After adjusting the position of the electric push rod via the sliding block and slide rail in the fixed frame, the pipe is clamped in the bending groove using the fastening seat. Turning on the motor drives the rotating column, along with the bending assembly and the fixed frame, to rotate, thus achieving the desired bending arc of the pipe. This solves the problem of existing bending jigs being unable to control the bending arc of the pipe according to requirements.

[0016] 2. This metal pipe bending jig allows for the following: When bending the pipe, the sealing gate is closed, and the bending process can be observed through the transparent sealing plate inside the observation opening. After bending is completed, the sealing gate is opened to release the limiting seat and its restraint on the metal pipe, allowing the bent metal pipe to be removed from the main body of the bending jig. This improves the safety of the metal pipe bending jig and the convenience of removing the pipe. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the present utility model;

[0018] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the structure of this utility model;

[0020] Figure 4 This is a structural diagram of the present utility model.

[0021] In the diagram: 1. Bending jig body; 2. Rotating column; 3. Bending assembly; 301. Bending disc; 302. Bending arc groove; 4. Fixing frame; 5. Electric push rod; 6. Fastening seat; 7. Slide seat; 8. Slide rail; 9. Limiting mechanism; 901. Hydraulic push rod; 902. Lifting plate; 903. Limiting seat; 904. Limiting arc groove; 905. L-shaped fixing frame; 906. Second electric push rod; 907. T-slot; 908. T-block; 10. Groove opening; 11. Motor; 12. Sealing door; 13. Transparent sealing plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: Please refer to Figures 1-4A metal pipe bending fixture includes a bending fixture body 1, a rotating column 2 rotatably disposed in the inner cavity of the bending fixture body 1, a bending component 3 fixedly connected to the outer ring of the rotating column 2, a fixing frame 4 fixedly connected to the outer ring of the rotating column 2, an electric push rod 5 disposed on the top of the fixing frame 4, a fastening seat 6 fixedly connected to the top of the electric push rod 5, a slide seat 7 fixedly connected to the bottom of the electric push rod 5, a slide rail 8 disposed on the top of the fixing frame 4, a limit mechanism 9 disposed in the inner cavity of the bending fixture body 1, a slot 10 penetrating through one end of the bending fixture body 1, a motor 11 fixedly connected to one side of the bending fixture body 1, and the bending component 3 comprising multiple bending discs 301 with decreasing diameters fixedly connected, the outer ring of the bending discs 301 having a bending arc groove 302.

[0024] Furthermore, the fixed frame 4 is fixedly connected to the bending component 3, the electric push rod 5 is slidably mounted on the top of the fixed frame 4 using the slide block 7 and the slide rail 8, and the output shaft of the motor 11 is fixedly connected to the rotating column 2.

[0025] Furthermore, the limiting mechanism 9 includes a hydraulic push rod 901 fixedly connected to the bottom of the inner cavity of the bending jig body 1. A lifting plate 902 is fixedly connected to the top of the hydraulic push rod 901, and two limiting seats 903 are symmetrically arranged on the top of the lifting plate 902.

[0026] Furthermore, the opposite surface of the limiting seat 903 is provided with limiting arc grooves 904 corresponding to the number of bent arc grooves 302. The top of the bottom limiting seat 903 is fixedly connected to an L-shaped fixing frame 905. Two second electric push rods 906 are symmetrically fixed at the bottom of the L-shaped fixing frame 905. The second electric push rods 906 are fixedly connected to the top limiting seat 903.

[0027] Furthermore, a T-slot 907 is provided on the top of the lifting plate 902, and a T-block 908 is provided in the inner cavity of the T-slot 907. The T-block 908 is fixedly connected to the bottom limiting seat 903. After the metal pipe is placed into the bending arc groove 302 in the bending plate 301 of the required arc, the lifting plate 902 can be moved up by the hydraulic push rod 901 until the pipe enters the limiting arc groove 904 in the bottom limiting seat 903. Then, the second electric push rod 906 on the L-shaped fixing frame 905 is used to move the top limiting seat 903 down to clamp the pipe. In conjunction with the T-block 908 in the T-slot 907, the metal pipe can move smoothly towards the bending component 3 during the bending process, improving the stability of the metal pipe bending process of the bending jig.

[0028] Furthermore, a sealing door 12 is hinged to one side of the bending jig body 1. An observation port is provided on one side of the sealing door 12, and a transparent sealing plate 13 is fixedly connected to the inner cavity of the observation port. When the pipe is bent, the sealing door 12 is closed, and the bending condition of the internal pipe can be observed through the transparent sealing plate 13 in the observation port. After the bending is completed, the sealing door 12 is opened, and the fastening seat 6 and the limiting seat 903 are released from the metal pipe. The bent metal pipe can then be taken out from the inside of the bending jig body 1, which improves the safety of this metal pipe bending jig and the convenience of taking out the pipe.

[0029] Working principle: When using this metal pipe bending jig, the metal pipe to be bent is placed into the bending jig body 1 through the groove 10. According to the curvature of the bend, the pipe is placed into the bending arc groove 302 in the bending disc 301 of the bending assembly 3. After adjusting the position of the electric push rod 5 through the slide seat 7 and slide rail 8 in the fixing frame 4, the pipe is clamped in the bending arc groove 302 by the fastening seat 6. When the motor 11 is turned on, the rotating column 2, together with the bending component 3 and the fixing frame 4, rotates, which can achieve the bending of the pipe to the required arc. This solves the problem that the existing bending jigs are difficult to control the bending arc of the pipe according to the requirements. After the metal pipe is placed into the bending arc groove 302 in the bending disc 301 of the required arc, the hydraulic push rod 901 can be used to drive the lifting plate 902 to move up to the limiting arc groove 904 in the bottom limiting seat 903. Then, the second electric push rod 906 on the L-shaped fixing frame 905 drives the top limiting seat 903 to move down to clamp the pipe. In addition, with the T-shaped block 908 in the T-shaped groove 907, the metal pipe can move smoothly towards the bending component 3 during the bending process, which improves the stability of the pipe bending process of the metal pipe bending jig.

[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] 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 bending jig for metal pipe bends, comprising a bending jig body (1), characterized in that: The inner cavity of the bending jig body (1) is rotatably provided with a rotating column (2), the outer ring of the rotating column (2) is fixedly connected with a bending component (3), the outer ring of the rotating column (2) is fixedly connected with a fixing frame (4), the top of the fixing frame (4) is provided with an electric push rod (5), the top of the electric push rod (5) is fixedly connected with a fastening seat (6), the bottom of the electric push rod (5) is fixedly connected with a slide (7), the top of the fixing frame (4) is provided with a slide rail (8), the inner cavity of the bending jig body (1) is provided with a limit mechanism (9), the bending... A slot (10) is opened through one end of the bending fixture body (1). A motor (11) is fixedly connected to one side of the bending fixture body (1). The bending assembly (3) consists of multiple bending discs (301) with decreasing diameters, which are fixedly connected. The outer ring of the bending disc (301) is provided with a bending arc groove (302). The fixing frame (4) is fixedly connected to the bending assembly (3). The electric push rod (5) is slidably mounted on the top of the fixing frame (4) using a slide block (7) and a slide rail (8). The output shaft of the motor (11) is fixedly connected to the rotating column (2). The limiting mechanism (9) includes a hydraulic push rod (901) fixedly connected to the bottom of the inner cavity of the bending jig body (1). A lifting plate (902) is fixedly connected to the top of the hydraulic push rod (901). Two limiting seats (903) are symmetrically arranged on the top of the lifting plate (902). The opposite surfaces of the limiting seats (903) are provided with limiting arc grooves (904) corresponding to the number of bending arc grooves (302). An L-shaped fixing frame (905) is fixedly connected to the top of the bottom limiting seat (903). The bottom of the L-shaped fixing frame (905) is opposite to the bottom of the limiting seat (903). Two second electric push rods (906) are fixedly connected to the top limiting seat (903). The top of the lifting plate (902) is provided with a T-shaped groove (907). The inner cavity of the T-shaped groove (907) is provided with a T-shaped block (908). The T-shaped block (908) is fixedly connected to the bottom limiting seat (903). A sealing door (12) is hinged to one side of the bending fixture body (1). An observation port is provided on one side of the sealing door (12), and a transparent sealing plate (13) is fixedly connected to the inner cavity of the observation port.

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