Pipe part forming device

Abstract

The utility model discloses a tubular part forming device which comprises a forming die used for extrusion forming of the end of a tubular workpiece and a split type limiting mechanism. The limiting mechanism comprises a mounting plate connected with the forming mold in a drawing mode, a limiting plate rotationally mounted in the forming mold, a positioning plate connected with the limiting plate in a clamped mode and an adjusting assembly, fixing blocks are arranged on the opposite inner side walls of the mounting plate, and split clamping columns are arranged on the fixing blocks. Protruding blocks connected with the fixing blocks in a clamped mode are arranged on the outer surfaces, opposite to each other, of the positioning plates, and a roller is arranged between the opposite surfaces of the limiting plates. The forming die is provided with a design for limiting the tubular workpiece, the tubular workpiece is limited by the limiting plate, large-amplitude deflection is avoided, the tubular workpiece is inserted into a gap between the opposite limiting cylinders, the limiting cylinders distributed in a bilateral symmetry mode limit the tubular workpiece, the tubular workpiece is prevented from shaking, and the tubular workpiece is stably installed.

Description

Technical Field

[0001] The utility model belongs to the technical field of tubular workpiece forming devices, and particularly relates to a forming device for pipe parts. Background Art

[0002] For tubular workpieces such as steel pipes, the steel pipe forming process includes several methods such as forging forming, cold bending forming, welding forming, and extrusion forming. Extrusion forming is a method of directly pressing the tubular workpiece material into shape using an extrusion forming die. The extrusion forming die is suitable for the forming of steel pipes with small outer dimensions and thin wall thicknesses, such as wire pipes and aluminum pipes. Compared with other forming processes, extrusion forming has high production efficiency and low cost, but requires high mechanical strength. The technology of using an extrusion forming die to extrude tubular workpieces is a conventional technical means;

[0003] When the end of a tubular workpiece is formed into a flat shape by extrusion forming, the workpiece needs to be manually inserted into the die for forming to achieve extrusion forming processing; in the above operation, there is an interspersed sliding connection between the tubular workpiece and the extrusion forming die. If the gap reserved on the extrusion forming die for the tubular workpiece to be inserted is large, the tubular workpiece is prone to shaking, and a large error will occur in the forming of the tubular workpiece; when the tubular workpiece is being extrusion formed, there is a problem that there is no design for limiting the tubular workpiece. For this reason, this application proposes a forming device for pipe parts. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a forming device for pipe parts to solve the problem that there is no design for limiting the tubular workpiece on the extrusion forming die proposed in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A forming device for pipe parts, including a forming die for extruding and forming the end of a tubular workpiece and a split-type limiting mechanism. A forming groove is provided on the forming die. The limiting mechanism includes a mounting plate that is slidably connected to the forming die, a limiting plate that is rotatably mounted inside the forming die, a positioning plate that is snap-fitted to the limiting plate, and an adjusting component. A support platform is provided on the positioning plate. Fixed blocks are provided on the opposite inner side walls of the mounting plate. Split-type clamping columns are provided on the fixed blocks. Protrusions that are snap-fitted to the fixed blocks are provided on the opposite outer surfaces of the limiting plate. A roller is provided between the opposite surfaces of the limiting plate. A blanking port is provided on the bottom surface of the limiting plate. The adjusting component includes a slide table cylinder mounted on the inner surface of the bottom end of the mounting plate and a collection groove that is slidably connected to the moving slide table of the slide table cylinder. A limiting component is provided on the positioning plate. The limiting component includes a connecting plate connected to the positioning plate, connecting columns respectively connected to both ends of the connecting plate, and a limiting cylinder rotatably sleeved outside the connecting columns.

[0006] Preferably, the fixing block has a "U"-shaped structure, the clamping post penetrates through the fixing block and the convex block, and the top end of the fixing block is a circular ring structure.

[0007] Preferably, both the mounting plate and the limiting plate have a "U"-shaped structure, a rotating shaft penetrates through the center position of the roller, and both ends of the rotating shaft are connected to the inner side walls of the limiting plates respectively.

[0008] Preferably, a supporting block is provided on the inner surface of the mounting plate facing the bottom of the limiting plate, and the bottom surface of the limiting plate fits with the surface of the cuboid supporting block.

[0009] Preferably, a rectangular groove is formed on the top surface of the limiting plate, the positioning plate includes a horizontal plate and a vertical plate, and a limiting ear cooperating with the groove is provided at the end of the horizontal plate.

[0010] Preferably, the tubular workpiece is in rolling contact with the surface of the roller.

[0011] Preferably, the tubular workpiece is externally tangent to the symmetrically distributed limiting cylinders.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] In the present utility model, the forming die has a design for limiting the tubular workpiece. The tubular workpiece is limited by the limiting plate to avoid large deflection. The tubular workpiece is inserted into the gap between the opposing limiting cylinders, and the symmetrically distributed limiting cylinders on the left and right limit the tubular workpiece to prevent the tubular workpiece from shaking and make the installation of the tubular workpiece stable. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a schematic side view structural diagram of the forming die of the present utility model;

[0016] Figure 3 is a schematic side view structural diagram of the mounting plate of the present utility model;

[0017] Figure 4 is of the present utility model Figure 3 is a schematic top view structural diagram of the limiting plate in;

[0018] Figure 5 is of the present utility model Figure 3 is a schematic side view structural diagram of the positioning plate in;

[0019] In the figure: 1, forming die; 2, mounting plate; 3, tubular workpiece; 5, limiting plate; 6, positioning plate; 11, forming groove; 21, fixing block; 22, supporting block; 41, sliding table cylinder; 42, collecting groove; 51, roller; 52, convex block; 53, blanking port; 61, limiting ear; 62, supporting platform; 71, connecting plate; 72, connecting column; 73, limiting cylinder; 211, clamping column. Detailed implementation manners

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to 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.

[0021] Embodiment

[0022] Please refer to Figures 1 to 5, the present utility model provides a technical solution: a forming device for pipe parts, including a forming die 1 for extruding and forming the end of a tubular workpiece 3 and a split-type limiting mechanism. The forming die 1 is provided with a forming groove 11, and the mounting plate 2 can be inserted into the corresponding forming groove 11 to facilitate the disassembly and assembly of the split-type mounting plate 2; the limiting mechanism includes a mounting plate 2 detachably connected to the forming die 1 by pulling, a limiting plate 5 rotatably mounted inside the forming die 1, a positioning plate 6 detachably connected to the limiting plate 5, and an adjusting component. The positioning plate 6 is provided with a support platform 62, and the support platform 62 serves to support the tubular workpiece 3. The limiting plate 5 and the mounting plate 2 are combined, and the limiting plate 5 can be disassembled and assembled. On the opposite inner side walls of the mounting plate 2, there are fixed blocks 21. The fixed blocks 21 are combined with the mounting plate 2 by conventional methods. The fixed blocks 21 are provided with split-type clamping columns 211. The clamping columns 211 penetrate through the convex blocks 52 to limit the clamping columns 211, thereby keeping the limiting plate 5 stable. On the opposite outer surfaces of the positioning plate 6, there are convex blocks 52 detachably connected to the fixed blocks 21. The convex blocks 52 are combined with the positioning plate 6 by conventional methods. Between the opposite surfaces of the limiting plate 5, there are rollers 51. The tubular workpiece 3 is in rolling contact with the rollers 51, which is conducive to the insertion and extraction of the tubular workpiece 3. On the bottom surface of the limiting plate 5, there is a blanking port 53. When the end of the tubular workpiece 3 is punched and formed, the hole plate falls from the blanking port 53. The adjusting component includes a sliding table cylinder 41 mounted on the inner surface of the bottom end of the mounting plate 2 and a collecting groove 42 connected to the moving sliding table of the sliding table cylinder 41. The sliding table cylinder 41 is combined with the mounting plate 2 and the collecting groove 42 by conventional methods. The sliding table cylinder 41 drives the collecting groove 42 to move, so that the collecting groove 42 moves outwards to facilitate the cleaning of the hole plates generated by punching that fall into the collecting groove 42. The positioning plate 6 is provided with a limiting component. The limiting component includes a connecting plate 71 connected to the positioning plate 6, connecting columns 72 respectively connected to both ends of the connecting plate 71, and a limiting cylinder 73 rotatably sleeved on the outside of the connecting columns 72. The symmetrically distributed limiting cylinders 73 on the left and right limit the tubular workpiece 3 to prevent the tubular workpiece 3 from shaking.

[0023] In this embodiment, the fixed block 21 has a "U" - shaped structure. The clamping column 211 penetrates through the fixed block 21 and the convex block 52. The top end of the fixed block 21 is a circular ring structure, which is convenient for taking and placing the clamping column 211. The fixed block 21 and the convex block 52 are combined, and the limiting plate 5 can be removed.

[0024] In this embodiment, both the mounting plate 2 and the limiting plate 5 have a "U" - shaped structure. A rotating shaft penetrates through the center position of the roller 51, and both ends of the rotating shaft are respectively connected to the inner side walls of the limiting plate 5. The roller 51 can rotate without affecting the insertion and extraction of the tubular workpiece 3.

[0025] In this embodiment, on the inner surface of the mounting plate 2 facing the bottom of the limiting plate 5, there is a support block 22. The bottom surface of the limiting plate 5 fits with the surface of the cuboid support block 22. The support block 22 supports the limiting plate 5, so that there is a support point at the bottom of the limiting plate 5, and the suspended limiting plate 5 remains stable.

[0026] In this embodiment, a rectangular groove is formed on the top surface of the limit plate 5. The positioning plate 6 includes a horizontal plate and a vertical plate. A limit ear 61 that cooperates with the groove is provided at the end of the horizontal plate. The limit ear 61 is embedded inside the limit plate 5 to limit the positioning plate 6.

[0027] In this embodiment, the tubular workpiece 3 is in rolling contact with the surface of the roller 51. The tubular workpiece 3 is externally tangent to the symmetrically distributed limiting cylinders 73. The left and right symmetrically distributed limiting cylinders 73 limit the tubular workpiece 3 to prevent the tubular workpiece 3 from shaking. The friction between the limiting cylinder 73 and the tubular workpiece 3 is small, which is beneficial to the movement of the tubular workpiece 3. The connecting plate 71 has a "Z" - shaped structure, and the distance between the opposite ends of the connecting plate 71 is large, which does not affect the extrusion forming of the end of the tubular workpiece 3. After forming, the tubular workpiece 3 can be rotated so that the flattened end formed by the tubular workpiece 3 is tilted and withdrawn from between the opposite limiting cylinders 73.

[0028] The working principle and usage process of the present utility model:

[0029] When forming the tubular workpiece 3, the tubular workpiece 3 is inserted into the limit plate 5. The tubular workpiece 3 is limited by the limit plate 5 to prevent large - amplitude deflection.

[0030] The tubular workpiece 3 is in rolling contact with the roller 51, which is beneficial to the insertion and extraction of the tubular workpiece 3.

[0031] The tubular workpiece 3 is inserted into the gap between the opposite limiting cylinders 73. The left and right symmetrically distributed limiting cylinders 73 limit the tubular workpiece 3 to prevent the tubular workpiece 3 from shaking. The friction between the limiting cylinder 73 and the tubular workpiece 3 is small, which is beneficial to the movement of the tubular workpiece 3.

[0032] When the end of the tubular workpiece 3 is extruded into a flattened shape, the tubular workpiece 3 is rotated so that the flattened end formed by the tubular workpiece 3 is tilted and withdrawn from between the opposite limiting cylinders 73.

[0033] When punching and forming the end of the tubular workpiece 3, the hole plate falls from the blanking port 53 into the collection groove 42. The sliding - table cylinder 41 drives the collection groove 42 to move, so that the collection groove 42 moves outwards, facilitating the cleaning of the hole plate generated by punching that has fallen into the collection groove 42.

[0034] In summary: The forming die 1 has a design for limiting the tubular workpiece 3. The tubular workpiece 3 is limited by the limit plate 5 to prevent large - amplitude deflection. The tubular workpiece 3 is inserted into the gap between the opposite limiting cylinders 73. The left and right symmetrically distributed limiting cylinders 73 limit the tubular workpiece 3 to prevent the tubular workpiece 3 from shaking, making the installation of the tubular workpiece 3 stable.

[0035] Although the embodiments of the present utility model have been shown and described (see the above detailed description), those of ordinary skill in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A tubular parts forming device, comprising a forming die (1) for extruding the end of a tubular workpiece (3) and a separate limiting mechanism, wherein the forming die (1) is provided with a forming groove (11), characterized in that: The limiting mechanism comprises a mounting plate (2) connected to the molding die (1) by pulling, a limiting plate (5) rotatably mounted inside the molding die (1), a positioning plate (6) connected to the limiting plate (5) by snapping, and an adjustment assembly, wherein a support (62) is provided on the positioning plate (6), a fixing block (21) is provided on the inner side wall opposite to the mounting plate (2), a split-type clamping column (211) is provided on the fixing block (21), a convex block (52) connected to the fixing block (21) is provided on the outer surface opposite to the limiting plate (5), and the limiting plate (5) A roller (51) is provided between the opposing surfaces, a discharge port (53) is provided on the bottom surface of the limiting plate (5), the adjusting component comprises a slide cylinder (41) installed on the inner surface of the bottom end of the mounting plate (2), and a collecting trough (42) connected to the movable slide on the slide cylinder (41); a limiting component is provided on the positioning plate (6), and the limiting component comprises a connecting plate (71) connected to the positioning plate (6), a connecting column (72) connected to the connecting plate (71) at both ends, and a limiting cylinder (73) rotatably sleeved on the outside of the connecting column (72).

2. A tube parts forming device according to claim 1, characterized in that: The fixing block (21) is a "U"-shaped structure, the clamping column (211) passes through the fixing block (21) and the protrusion (52), and the top of the fixing block (21) is a circular ring structure.

3. A tube parts forming device according to claim 1, characterized in that: The mounting plate (2) and the limiting plate (5) are both U-shaped structures, a rotating shaft passes through the center of the roller (51), and both ends of the rotating shaft are respectively connected to the inner side wall of the limiting plate (5).

4. A tube parts forming device according to claim 1, characterized in that: A support block (22) is provided on the inner surface of the mounting plate (2) facing the bottom of the limiting plate (5), and the bottom surface of the limiting plate (5) matches the surface of the rectangular support block (22).

5. The tube parts forming device according to claim 1, characterized in that: A rectangular groove is provided on the top surface of the limiting plate (5); the positioning plate (6) comprises a horizontal plate and a vertical plate; and a limiting ear (61) matching the groove is provided on the end of the horizontal plate.

6. A tube parts forming device according to claim 1, characterized in that: The tubular workpiece (3) is in rolling contact with the surface of the roller (51).

7. A tube parts forming device according to claim 1, characterized in that: The tubular workpiece (3) is circumscribed by a symmetrically distributed limiting cylinder (73).

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