Bending device for special pipe production

Abstract

The utility model discloses a bending device for special pipe production, which belongs to the technical field of pipe bending and comprises a workbench, symmetrically distributed clamping components are mounted on the workbench, a vertical positioning shaft is fixed above the workbench and positioned between the two clamping components, each clamping component comprises a horizontal first electric telescopic rod, and a second electric telescopic rod is fixed above the workbench. A horizontal connecting strip is vertically fixed to an output shaft of the first electric telescopic rod, vertical second electric telescopic rods are fixed to the upper portions of the two ends of the connecting strip, connecting blocks are fixed to the upper ends of output shafts of the second electric telescopic rods, hydraulic cylinders parallel to the connecting strip are fixed to the connecting blocks, and clamping blocks are fixed to output shafts of the hydraulic cylinders. According to the bending device, after the pipe is bent, if the pipe needs to be bent continuously, the clamping assemblies can be clamped on the two sides of the position to be bent respectively again, and the pipe can be controlled to rotate and the bending direction can be adjusted by controlling one second electric telescopic rod to extend and the other second electric telescopic rod to retract.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe processing, and in particular relates to a bending device for producing special-shaped pipes. Background Art

[0002] Special-shaped pipe is a general term for steel pipes with other cross-sectional shapes except round pipes. According to the different cross-sectional shapes and sizes of steel pipes, they can be divided into equal wall thickness special-shaped seamless steel pipes, unequal wall thickness special-shaped seamless steel pipes, and variable diameter special-shaped seamless steel pipes. Special-shaped pipes sometimes need to be bent during processing to meet the needs of the work. Bending machines are required for bending special-shaped pipes.

[0003] In order to bend the special-shaped tube into different shapes, it is necessary to manually adjust the orientation of the tube after bending once before continuing the next bending operation. Therefore, if you want to bend the special-shaped tube into different shapes, it is a waste of manpower and the bending efficiency is low. In order to solve the above problems, a bending device for special-shaped tube production is provided.

[0004] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Utility Model Content

[0005] In order to solve the above problems, the purpose of the utility model is to provide a bending device for the production of special-shaped pipes. After the pipe is bent, if it needs to be bent further, the clamping components can be re-clamped on both sides of the position to be bent. By controlling one of the second electric telescopic rods to extend and the other second electric telescopic rod to shorten, the pipe can be controlled to rotate, the bending direction can be adjusted, and then the corresponding position can be bent again. Therefore, the bending device can automatically bend the pipe into different shapes without manual adjustment, saving manpower and improving bending efficiency.

[0006] To achieve the above-mentioned purpose, the utility model proposes a bending device for producing special-shaped pipes, which is used to bend pipes. The bending device includes a workbench, on which symmetrically distributed clamping components are installed, and a vertical positioning shaft is fixed above the workbench, and the positioning shaft is located between two clamping components.

[0007] The clamping assembly includes a horizontal first electric telescopic rod, a horizontal connecting strip is vertically fixed on the output shaft of the first electric telescopic rod, a vertical second electric telescopic rod is fixed above both ends of the connecting strip, a connecting block is fixed to the upper end of the output shaft of the second electric telescopic rod, a hydraulic cylinder parallel to the connecting strip is fixed on the connecting block, and a clamping block is fixed on the output shaft of the hydraulic cylinder.

[0008] Furthermore, the workbench includes a table top, vertical brackets are fixed below both ends of the table top, symmetrically distributed through holes are opened above the table top, the through holes are located on both sides of the positioning axis, and the first electric telescopic rod is fixed on the vertical brackets.

[0009] Furthermore, the positioning shaft is formed by combining a plurality of circular shafts with different diameters.

[0010] Furthermore, the diameter of the circular shaft decreases from bottom to top.

[0011] Furthermore, both sides of the clamping block are provided with rounded corners.

[0012] Furthermore, a rubber layer is fixed to the clamping side of the clamping block.

[0013] Furthermore, a loading assembly for loading pipes is provided at one end of the workbench.

[0014] Furthermore, the loading assembly includes a storage box for storing pipes, a vertical first cylinder is fixed to the bottom of the storage box, a support plate is fixed to the output shaft of the first cylinder, a discharge port is opened at a side corner above one end of the storage box close to the workbench, a second cylinder is fixed to the side of the storage box away from the discharge port, the output shaft of the second cylinder passes through the corresponding side wall of the storage box and is fixed with a push plate, a third cylinder is fixed to the end of the storage box away from the workbench, and the output shaft of the third cylinder corresponds to the discharge port.

[0015] Furthermore, a feed port is provided above the storage box.

[0016] The bending device for producing special-shaped pipes proposed by the utility model can bring the following beneficial effects:

[0017] 1. After the bending device of the utility model has completed bending the pipe, if it needs to be further bent, the clamping components can be clamped on both sides of the to-be-bent position respectively, and the pipe can be rotated and the bending direction can be adjusted by controlling one of the second electric telescopic rods to extend and the other second electric telescopic rod to shorten, and then the corresponding position can be bent again. Therefore, the bending device can automatically bend the pipe into different shapes without manual adjustment, thus saving manpower and improving the bending efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0019] Figure 1 The utility model is a structural schematic diagram of a bending device for producing special-shaped pipes.

[0020] Figure 2 for Figure 1 Enlarged structural diagram at A in the middle.

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the feeding assembly of the utility model. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0023] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description of reference terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more schemes or examples.

[0027] The embodiment of the utility model provides a bending device for producing special-shaped pipes, which is used to bend pipes. The bending device includes a workbench 1, such as Figure 1 As shown, symmetrically distributed clamping assemblies 2 are installed on the workbench 1, a vertical positioning shaft 3 is fixed above the workbench 1, the positioning shaft 3 is located between the two clamping assemblies 2, the positioning shaft 3 is formed by a combination of several circular shafts with different diameters, and the diameters of the circular shafts decrease from bottom to top. A loading assembly 4 for loading pipes is provided at one end of the workbench 1.

[0028] The workbench 1 includes a table top 11 , and vertical brackets 12 are fixed below both ends of the table top 11 . Symmetrically distributed through holes 13 are opened above the table top 11 , and the through holes 13 are located on both sides of the positioning shaft 3 .

[0029] The clamping assembly 2 includes a horizontal first electric telescopic rod 21, such as Figure 2 As shown, the first electric telescopic rod 21 is fixed on the vertical bracket 12, a horizontal connecting strip 22 is vertically fixed on the output shaft of the first electric telescopic rod 21, a vertical second electric telescopic rod 23 is fixed above both ends of the connecting strip 22, a connecting block 24 is fixed to the upper end of the output shaft of the second electric telescopic rod 23, a hydraulic cylinder 25 parallel to the connecting strip 22 is fixed on the connecting block 24, a clamping block 26 is fixed on the output shaft of the hydraulic cylinder 25, both sides of the clamping block 26 are provided with rounded corners, and a rubber layer 27 is fixed to the clamping side of the clamping block 26.

[0030] The feeding assembly 4 includes a storage box 41 for storing pipes, such as Figure 3As shown, a vertical first cylinder 42 is fixed to the bottom of the storage box 41, a support plate 43 is fixed on the output shaft of the first cylinder 42, a feed port 44 is provided above the storage box 41, a discharge port 46 is provided at a corner on one side above the end of the storage box 41 close to the workbench 1, a second cylinder 45 is fixed to the side of the storage box 41 away from the discharge port 46, the output shaft of the second cylinder 45 passes through the corresponding side wall of the storage box 41 and is fixed with a push plate 48, a third cylinder 47 is fixed to the end of the storage box 41 away from the workbench 1, and the output shaft of the third cylinder 47 corresponds to the discharge port 46.

[0031] When in use, the first cylinder 42 and the second cylinder 45 are activated to cooperate to push one of the pipes to correspond to the discharge port 46, and the corresponding pipe is pushed out of the discharge port 46 by activating the third cylinder 47. The pipe is clamped out of the discharge port 46 by controlling the clamping assembly 2 closest to the discharge port 46, and then the pipe is moved to the position to be bent and corresponds to the corresponding circular axis on the positioning axis 3, and then the two clamping assemblies 2 are used to clamp the two sides of the bending position respectively, and the pipe is released on the circular axis below the corresponding circular axis, and the clamping assemblies are controlled respectively. A clamping plate on the component 2 moves to push the pipe toward the positioning shaft 3 for bending. After the bending is completed, the pipe is clamped by one of the clamping components 2. If it needs to be bent further, the clamping components 2 can be clamped again on both sides of the to-be-bent position. By controlling one of the second electric telescopic rods 23 to extend and the other second electric telescopic rod 23 to shorten, the pipe can be rotated and the bending direction can be adjusted. Then, the corresponding position can be bent again. Therefore, the bending device can automatically bend the pipe into different shapes.

[0032] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0033] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A bending device for producing special-shaped pipes, used for bending pipes, the bending device comprising a workbench (1), characterized in that: The workbench (1) is provided with symmetrically distributed clamping assemblies (2), a vertical positioning shaft (3) is fixed above the workbench (1), and the positioning shaft (3) is located between the two clamping assemblies (2); The clamping assembly (2) comprises a horizontal first electric telescopic rod (21), a horizontal connecting bar (22) being vertically fixed on the output shaft of the first electric telescopic rod (21), a vertical second electric telescopic rod (23) being fixed above both ends of the connecting bar (22), a connecting block (24) being fixed on the upper end of the output shaft of the second electric telescopic rod (23), a hydraulic cylinder (25) being fixed on the connecting block (24) and being parallel to the connecting bar (22), and a clamping block (26) being fixed on the output shaft of the hydraulic cylinder (25).

2. A bending device for producing special-shaped pipes according to claim 1, characterized in that: The workbench (1) comprises a table top (11), vertical brackets (12) are fixed below both ends of the table top (11), symmetrically distributed through holes (13) are opened above the table top (11), and the through holes (13) are located on both sides of the positioning shaft (3), and a first electric telescopic rod (21) is fixed on the vertical bracket (12).

3. A bending device for producing special-shaped pipes according to claim 2, characterized in that: The positioning shaft (3) is formed by combining a plurality of circular shafts with different diameters.

4. A bending device for producing special-shaped pipes according to claim 3, characterized in that: The diameter of the circular shaft decreases from bottom to top.

5. A bending device for producing special-shaped pipes according to claim 4, characterized in that: Both sides of the clamping block (26) are provided with rounded corners.

6. A bending device for producing special-shaped pipes according to claim 5, characterized in that: A rubber layer (27) is fixed to the clamping side of the clamping block (26).

7. A bending device for producing special-shaped pipes according to claim 6, characterized in that: One end of the workbench (1) is provided with a loading assembly (4) for loading pipes.

8. A bending device for producing special-shaped pipes according to claim 7, characterized in that: The loading assembly (4) comprises a storage box (41) for storing pipes, a first vertical cylinder (42) is fixed at the bottom of the storage box (41), a support plate (43) is fixed on the output shaft of the first cylinder (42), a discharge port (46) is provided at a corner above one end of the storage box (41) close to the workbench (1), a second cylinder (45) is fixed on the side of the storage box (41) away from the discharge port (46), the output shaft of the second cylinder (45) passes through the corresponding side wall of the storage box (41) and is fixed with a push plate (48), and a third cylinder (47) is fixed on the end of the storage box (41) away from the workbench (1), and the output shaft of the third cylinder (47) corresponds to the discharge port (46).

9. A bending device for producing special-shaped pipes according to claim 8, characterized in that: A feed opening (44) is provided above the storage box (41).

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