Die for pipe spinning, bending and incremental forming

Abstract

The utility model discloses a die for pipe spinning bending incremental forming, which comprises a supporting die, a moving roller rotationally connected to the upper end of the supporting die, a forming hydraulic cylinder fixedly mounted on the front side and the rear side of the right end of the supporting die, and a fixed pressing plate, and movable rods are fixedly connected to the front side and the rear side of the lower end of the fixed pressing plate. The movable rod is arranged on the upper right portion of the supporting mold, an up-down sliding structure is formed between the movable rod and the supporting mold, and the bending assembly is arranged on the upper right portion of the supporting mold and used for bending the pipe. According to the mold for pipe spinning, bending and incremental forming, a movable rod drives a fixed pressing plate to stretch out and draw back, the fixed pressing plate is driven to press and limit a pipe, the stability of the pipe in the machining process is improved, tilting is prevented, a connecting block and a fixed plate are combined, a bending assembly is driven to stretch out and draw back left and right at the right end of a supporting mold, and the bending effect is improved. And therefore, the pipes with different sizes can be conveniently bent.

Description

Technical Field

[0001] The utility model relates to the technical field related to the spinning and bending processing of pipes, and particularly relates to a die for the progressive forming of pipe spinning and bending. Background Technique

[0002] The pipe spinning and bending technology is widely used in the manufacturing of products such as metal pipes, connecting rods, and bearings. During the production and processing of metal pipes, the pipes can be bent and formed according to production requirements with the help of corresponding dies.

[0003] However, usually when processing pipes by spinning and bending, the pressing and fixing effect on the pipes is not good, resulting in the pipes being prone to warping during construction. Moreover, when processing pipes of different sizes, different dies need to be replaced, which is not convenient for bending construction of pipes of different sizes.

[0004] Therefore, we propose a die for the progressive forming of pipe spinning and bending to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a die for the progressive forming of pipe spinning and bending, so as to solve the problems in the above background technique that usually when processing pipes by spinning and bending, the pressing and fixing effect on the pipes is not good, resulting in the pipes being prone to warping during construction, and when processing pipes of different sizes, different dies need to be replaced, which is not convenient for bending construction of pipes of different sizes.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A die for the progressive forming of pipe spinning and bending, including a support die, a moving roller rotatably connected to the upper end of the support die, and forming hydraulic cylinders fixedly installed on the front and rear sides of the right end of the support die.

[0007] It further includes:

[0008] A fixed pressing plate, both the front and rear sides of the lower end of the fixed pressing plate are fixedly connected with movable rods, and the movable rods and the support die form an up-and-down sliding structure, and the movable rods drive the fixed pressing plate to form a lifting structure above the support die, and the fixed pressing plate is used for pressing and fixing the pipe.

[0009] A bending assembly, the bending assembly is arranged above the right of the support die, and the bending assembly is used for bending the pipe, and a connecting block is arranged below the bending assembly, and the connecting block combines with the fixed plate to drive the bending assembly to form a telescopic structure on the right side of the support die.

[0010] Preferably, the moving rollers are arranged at equal intervals on the supporting die, and an electric telescopic rod is fixedly installed inside the supporting die, and the output end of the electric telescopic rod is fixedly connected with a movable plate;

[0011] Wherein, movable rods are fixedly connected to both the front and rear ends of the movable plate.

[0012] Preferably, the bending assembly includes a processing plate for connection, a processing roller rotatably connected to the middle of the processing plate, and connecting columns fixedly connected to both the front and rear ends of the processing plate;

[0013] Wherein, the horizontal distance between the processing roller and the supporting die is equal to the diameter of the pipe.

[0014] Preferably, the lower end of the connecting column is fixedly connected with a connecting block, and the connecting block is connected with the fixed plate in a card slot manner, and both the connecting block and the fixed plate are symmetrically arranged on the front and rear sides of the right end of the supporting die.

[0015] Preferably, fixing grooves are equidistantly arranged on the side surface of the fixed plate, and a vertical sliding structure is formed between the fixed plate and the positioning rod, and the positioning rod is fixedly connected to the right end of the supporting die.

[0016] Preferably, a pull rod is slidably connected to the middle of the connecting block, a spring is sleeved on the outer surface of the pull rod, and the pull rod is snap-connected to the fixing groove at the corresponding position on the side surface of the fixed plate.

[0017] Preferably, an auxiliary plate is fixedly connected to the left end of the fixed plate, and the auxiliary plate is fixedly connected to the output end of the forming hydraulic cylinder.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows: For the die for progressive forming of pipe spinning and bending, the movable rod drives the fixed pressing plate to expand and contract, driving the fixed pressing plate to press and limit the pipe, improving the stability of the pipe during the processing, preventing it from tilting. Combining the settings of the connecting block and the fixed plate, driving the bending assembly to move left and right telescopically at the right end of the supporting die, so as to facilitate the bending processing of pipes with different sizes. Combining the processing plate driving the processing roller to move downward can bend the pipe, and combining the sliding between the fixed plate and the positioning rod improves the stability of the movement of the processing roller during the processing;

[0019] 1. There are a fixed pressing plate and a movable rod. The movable rod slides between the supporting die to drive the fixed pressing plate to expand and contract, so that the fixed pressing plate presses and fixes the pipe, improving the stability of the pipe during the processing;

[0020] 2. A bending assembly is provided, which includes a processing plate, a processing roller and a connecting column. Through the setting of the bending assembly, it is convenient to bend the pipe. By combining the up and down sliding between the fixed plate and the positioning rod, the stability of the processing roller during movement in the processing process is improved.

[0021] 3. A connecting block, a fixed plate and a pull rod are provided. By sliding between the connecting block and the fixed plate, it is convenient to adjust the horizontal spacing size between the processing roller and the support die, so as to facilitate the processing of pipes with different sizes. Moreover, through the setting of the pull rod, it is convenient to limit the position between the fixed plate and the connecting block after the adjustment is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view structural schematic diagram of the present utility model;

[0023] Figure 2 It is a front view sectional structural schematic diagram of the connection of the support die, the movable rod and the movable plate of the present utility model;

[0024] Figure 3 It is a bottom view structural schematic diagram of the connection of the fixed pressing plate, the movable rod and the movable plate of the present utility model;

[0025] Figure 4 It is a front view structural schematic diagram of the connection of the bending assembly, the fixed plate and the positioning rod of the present utility model;

[0026] Figure 5 For the present utility model Figure 4 The enlarged structural schematic diagram at A in;

[0027] Figure 6 It is a top view structural schematic diagram of the present utility model;

[0028] Figure 7 It is a front view sectional structural schematic diagram of the connection of the connecting block, the fixed plate and the pull rod of the present utility model;

[0029] Figure 8 It is a bottom view structural schematic diagram of the connection of the fixed plate, the positioning rod and the auxiliary plate of the present utility model.

[0030] In the figure: 1. Support die; 2. Moving roller; 3. Fixed pressing plate; 4. Movable rod; 5. Movable plate; 6. Electric telescopic rod; 7. Bending assembly; 8. Processing plate; 9. Processing roller; 10. Connecting column; 11. Connecting block; 12. Fixed plate; 13. Positioning rod; 14. Pull rod; 15. Spring; 16. Auxiliary plate; 17. Forming hydraulic cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figure 1-8 , the present invention provides a technical solution: a die for progressive forming of tube spinning and bending, including a support die 1, a moving roller 2, a fixed pressing plate 3, a movable rod 4, a movable plate 5, an electric telescopic rod 6, a bending assembly 7, a processing plate 8, a processing roller 9, a connecting column 10, a connecting block 11, a fixing plate 12, a positioning rod 13, a pull rod 14, a spring 15, an auxiliary plate 16 and a forming hydraulic cylinder 17.

[0033] When using the die for progressive forming of tube spinning and bending, as Figure 1 , Figure 2 and Figure 3 shown, first place the tube to be processed in the middle of the support die 1, and a moving roller 2 is rotatably installed at the upper end of the support die 1. When the tube moves on the support die 1, it directly contacts the moving roller 2 and drives the moving roller 2 to rotate at the upper end of the support die 1, thereby improving the stability of the tube during the drawing process. Then start the electric telescopic rod 6 installed inside the support die 1. The electric telescopic rod 6 drives the movable plate 5 to move downward, so that the movable rod 4 drives the movable rod 4 to slide in the middle of the support die 1, and a fixed pressing plate 3 is fixedly connected to the upper end of the movable rod 4. At this time, the movable rod 4 drives the fixed pressing plate 3 to lift and lower at the upper end of the support die 1, and the tube is tightly fixed by the fixed pressing plate 3 to prevent the tube from warping during the processing and improve the stability of the tube during the processing;

[0034] After the pressing is completed, in combination with Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the bending assembly 7 includes a processing plate 8 for connection, a processing roller 9 rotatably connected to the middle of the processing plate 8, and connecting columns 10 fixedly connected to the front and rear ends of the processing plate 8. According to the actual size of the pipe, by pulling the pull rod 14, the pull rod 14 slides between the connecting block 11, and the pull rod 14 squeezes the spring 15, causing the spring 15 to undergo elastic deformation. At this time, the pull rod 14 is withdrawn from the fixing groove on the side of the fixing plate 12, thereby releasing the limit between the connecting block 11 and the fixing plate 12. Then, by pulling the connecting block 11, the connecting block 11 slides between the connecting block 11 and the fixing plate 12, and the connecting block 11 drives the processing plate 8 and the processing roller 9 to move, so that the horizontal distance between the processing roller 9 and the support die 1 is equal to the diameter size of the pipe. After the adjustment is completed, directly release the pull rod 14. At this time, the spring 15 resumes elastic deformation, driving the pull rod 14 to slide between the connecting block 11, so that the pull rod 14 is engaged in the fixing groove at the corresponding position on the side of the fixing plate 12, thereby facilitating the limitation between the connecting block 11 and the fixing plate 12;

[0035] After the adjustment and limitation are completed, at this time, start the forming hydraulic cylinder 17 installed at the right end of the support die 1. The forming hydraulic cylinder 17 drives the fixing plate 12 to move downward through the auxiliary plate 16, so that the fixing plate 12 drives the processing roller 9 to move downward to bend the pipe. At the same time, the fixing plate 12 slides up and down with the positioning rod 13 during the movement, thereby improving the stability of the fixing plate 12 during the movement.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A die for pipe spinning and bending progressive forming, comprising a supporting die (1), a moving roller (2) rotatably connected to the upper end of the supporting die (1), and a forming hydraulic cylinder (17) fixedly mounted on both sides of the right end of the supporting die (1); It is characterized in that Also includes: A fixed pressing plate (3), wherein both front and rear sides of the lower end of the fixed pressing plate (3) are fixedly connected with movable rods (4), and an up-and-down sliding structure is formed between the movable rods (4) and the supporting mold (1), and the movable rods (4) drive the fixed pressing plate (3) to form a lifting structure above the supporting mold (1), and the fixed pressing plate (3) is used to press and fix the pipe; A bending assembly (7) is arranged on the upper right side of the supporting mold (1), and the bending assembly (7) is used to bend the pipe, and a connecting block (11) is arranged below the bending assembly (7), and the connecting block (11) is combined with a fixing plate (12) to drive the bending assembly (7) to form a telescopic structure on the right side of the supporting mold (1).

2. A die for pipe spinning and bending incremental forming according to claim 1, characterized in that: The movable rollers (2) are arranged at equal intervals on the supporting mold (1), and an electric telescopic rod (6) is fixedly installed inside the supporting mold (1), and the output end of the electric telescopic rod (6) is fixedly connected to a movable plate (5); Wherein, both front and rear ends of the movable plate (5) are fixedly connected with movable rods (4).

3. A die for pipe spinning and bending incremental forming according to claim 1, characterized in that: The bending assembly (7) comprises a processing plate (8) for connection, a processing roller (9) rotatably connected to the middle of the processing plate (8), and a connecting column (10) fixedly connected to the front and rear ends of the processing plate (8); Wherein, the horizontal spacing dimension between the processing roller (9) and the supporting mold (1) is equal to the diameter dimension of the pipe.

4. A die for pipe spinning and bending incremental forming according to claim 3, characterized in that: The lower end of the connecting column (10) is fixedly connected to a connecting block (11), and the connecting block (11) is connected to the fixing plate (12) by a slot, and the connecting block (11) and the fixing plate (12) are symmetrically arranged at the front and rear sides of the right end of the supporting mold (1).

5. A die for pipe spinning and bending incremental forming according to claim 4, characterized in that: The side surface of the fixing plate (12) is provided with fixing grooves at equal intervals, and an up-and-down sliding structure is formed between the fixing plate (12) and the positioning rod (13), and the positioning rod (13) is fixedly connected to the right end of the supporting mold (1).

6. A die for pipe spinning and bending incremental forming according to claim 4, characterized in that: A pull rod (14) is slidably connected to the middle of the connection block (11), and a spring (15) is sleeved on the outer surface of the pull rod (14), and the pull rod (14) is snap-connected to a fixing groove at a corresponding position on the side of the fixing plate (12).

7. A die for pipe spinning and bending incremental forming according to claim 6, characterized in that: The left end of the fixed plate (12) is fixedly connected to an auxiliary plate (16), and the auxiliary plate (16) is fixedly connected to the output end of the forming hydraulic cylinder (17).

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