A seamless steel pipe straightening equipment

Abstract

The present invention proposes a seamless steel pipe straightening device, including a receiving plate, a straightening plate, a pressing plate, a mounting plate and a first cylinder; a first bracket and a second bracket arranged vertically are provided at both ends of the receiving plate; the straightening plate is located above the receiving plate and parallel to the receiving plate, and the two ends of the straightening plate are respectively connected to the first bracket and the second bracket; the straightening plate is provided with a plurality of mounting holes penetrating its upper and lower surfaces, a straightening die is installed in the mounting hole, and the straightening die is provided with straightening holes penetrating its upper and lower surfaces; the pressing plate is located above the straightening plate and parallel to the straightening plate, and the two ends of the pressing plate are respectively connected to the first bracket and the second bracket in a sliding manner; the mounting plate is located above the pressing plate, and the two ends of the mounting plate are respectively connected to the first bracket and the second bracket; the first cylinder is installed on the mounting plate, and the first cylinder is connected to the pressing plate. The present invention has a simple structure, is easy to operate, can straighten multiple steel pipes at the same time, and can perform straightening processing on steel pipes of different sizes with high straightening accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of steel pipe straightening, in particular to a seamless steel pipe straightening device. Background Art

[0002] After cold deformation, the metal structure and crystal organization of seamless steel pipes change, so they need to be heat treated by high-temperature solid solution. The purpose is to improve the metal organization structure of seamless steel pipes through high-temperature heat treatment technology, so that the internal crystal organization can be re-spheroidized to meet the requirements of subsequent processing. However, after high-temperature heat treatment, seamless steel pipes will have bending deformation problems in the length direction, and must be straightened and finished to meet the straightness requirements of finished products or subsequent processed products. Summary of the invention

[0003] Based on the technical problems existing in the background technology, the present invention proposes a seamless steel pipe straightening device.

[0004] The present invention provides a seamless steel pipe straightening device, comprising a receiving plate, a straightening plate, a pressing plate, a mounting plate and a first cylinder;

[0005] The receiving plate is arranged horizontally, and two ends of the receiving plate are provided with a first bracket and a second bracket arranged vertically;

[0006] The straightening plate is located above the receiving plate and parallel to the receiving plate, and the two ends of the straightening plate are respectively connected to the first bracket and the second bracket; the straightening plate is provided with a plurality of mounting holes penetrating the upper and lower surfaces thereof, and a straightening die is installed in the mounting holes, and the straightening die is provided with straightening holes penetrating the upper and lower surfaces thereof;

[0007] The pressing plate is located above the straightening plate and is parallel to the straightening plate, and two ends of the pressing plate are respectively connected with the first bracket and the second bracket in a sliding manner;

[0008] The mounting plate is located above the pressing plate, and two ends of the mounting plate are connected to the first bracket and the second bracket respectively;

[0009] The first cylinder is mounted on the mounting plate, and the first cylinder is connected to the pressing plate and drives the pressing plate to move up and down in the vertical direction.

[0010] Preferably, a fixing ring is provided on the outer side of the top end of the straightening die, the outer diameter of the fixing plate is larger than the diameter of the mounting hole, a plurality of first assembly holes are provided on the fixing ring, second assembly holes are provided at positions corresponding to the plurality of first assembly holes on the straightening plate, and the second assembly holes are connected to the first assembly holes by bolts.

[0011] Preferably, the straightening dies are cylindrical and the outer diameter of the straightening dies is equal to the diameter of the mounting hole.

[0012] Preferably, the bottom end of the pressing plate is located above each mounting hole and is provided with a plurality of concentrically arranged annular grooves with different diameters, the diameter of the outermost annular groove is smaller than the diameter of the mounting hole, and the central axes of the plurality of annular grooves coincide with the central axis of the mounting hole.

[0013] Preferably, it also includes a rotating shaft, a driving motor and two second cylinders, a first slider is slidably installed on the first bracket at a position between the straightening plate and the receiving plate, a second slider is slidably installed on the second bracket at a position between the straightening plate and the receiving plate, and the two second cylinders are installed on the receiving plate and are respectively connected to the first slider and the second slider; the driving motor is installed on the second slider, the rotating shaft is located between the straightening plate and the receiving plate and is parallel to the receiving plate, one end of the rotating shaft is connected to the first slider and the other end is connected to the driving motor, a plurality of support members are circumferentially arranged on the outer circumference of the rotating shaft, the support members include a plurality of support shafts arranged along the rotating shaft, and the plurality of support shafts of each support member are respectively arranged in one-to-one correspondence with the plurality of mounting holes.

[0014] Preferably, the diameters of the support shafts of the plurality of support members are different from each other.

[0015] The present invention proposes a seamless steel pipe straightening device. According to the outer diameter of the steel pipe to be straightened, a straightening die of suitable size is selected and installed in the installation hole. At the same time, according to the inner diameter of the steel pipe to be straightened, a support shaft of suitable size is selected and the rotating shaft is driven to rotate by a driving motor, so that the selected support shaft rotates above the rotating shaft, and then the two second cylinders respectively drive the first slider and the second slider to move upward, so that the selected multiple support shafts are respectively extended into multiple straightening holes; the bottom end of the steel pipe to be straightened is inserted into the straightening hole and sleeved on the support shaft, and the top end of the steel pipe is stuck in an annular groove of suitable size, and the first cylinder drives the pressing plate to move downward, pushing the steel pipe to move downward along the support shaft; under the action of the straightening die and the support shaft, the straightening work of the steel pipe is completed. The present invention has a simple structure and is easy to operate. It can straighten multiple steel pipes at the same time, and can perform straightening processing on steel pipes of different sizes with high straightening accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a schematic structural diagram of a seamless steel pipe straightening device proposed in the present invention. DETAILED DESCRIPTION

[0017] Reference Figure 1 The present invention provides a seamless steel pipe straightening device, comprising a receiving plate 1, a straightening plate 2, a pressing plate 3, a mounting plate 4, a first cylinder 5, a rotating shaft 11, a driving motor 12 and two second cylinders; wherein:

[0018] The receiving plate 1 is arranged horizontally, and two ends of the receiving plate 1 are provided with a first bracket 6 and a second bracket 7 which are arranged vertically.

[0019] The straightening plate 2 is located above the receiving plate 1 and parallel to the receiving plate 1, and the two ends of the straightening plate 2 are respectively connected to the first bracket 6 and the second bracket 7. The straightening plate 2 is provided with a plurality of mounting holes penetrating the upper and lower surfaces thereof, and a straightening die 8 is installed in the mounting holes. The straightening die 8 is cylindrical and the outer diameter of the straightening die 8 is equal to the diameter of the mounting hole. The straightening die 8 is provided with straightening holes penetrating the upper and lower surfaces thereof.

[0020] The pressing plate 3 is located above the straightening plate 2 and parallel to the straightening plate 2. The two ends of the pressing plate 3 are respectively connected to the first bracket 6 and the second bracket 7 by sliding fit. The bottom end of the pressing plate 3 is located above each mounting hole and is provided with a plurality of concentrically arranged annular grooves 10 with different diameters. The diameter of the outermost annular groove 10 is smaller than the diameter of the mounting hole, and the central axes of the plurality of annular grooves 10 coincide with the central axes of the mounting hole.

[0021] The mounting plate 4 is located above the pressing plate 3 , and two ends of the mounting plate 4 are connected to the first bracket 6 and the second bracket 7 respectively.

[0022] The first cylinder 5 is mounted on the mounting plate 4 , and the first cylinder 5 is connected to the pressing plate 3 and drives the pressing plate 3 to move up and down in the vertical direction.

[0023] A first slider 13 is slidably mounted on the first bracket 6 between the straightening plate 2 and the receiving plate 1, and a second slider 14 is slidably mounted on the second bracket 7 between the straightening plate 2 and the receiving plate 1. Two second cylinders are mounted on the receiving plate and are connected to the first slider 13 and the second slider 14, respectively. The drive motor 12 is mounted on the second slider 14, and the rotating shaft 11 is located between the straightening plate 2 and the receiving plate 1 and is parallel to the receiving plate 1. One end of the rotor is connected to the first slider 13 and the other end is connected to the drive motor 12. A plurality of support members are arranged circumferentially on the outer surface of the rotor, and the support members include a plurality of support shafts 15 arranged along the rotating shaft 11, and the plurality of support shafts 15 of each support member are respectively arranged one-to-one with the plurality of mounting holes, and the diameters of the support shafts 15 of the plurality of support members are not equal to each other.

[0024] The working principle of the present invention is as follows: according to the outer diameter of the steel pipe a to be straightened, a straightening die 8 of suitable size is selected and installed in the installation hole. At the same time, according to the inner diameter of the steel pipe a to be straightened, a support shaft 15 of suitable size is selected and the rotating shaft 11 is driven to rotate by the driving motor 12, so that the selected support shaft 15 rotates to the top of the rotating shaft 11, and then the two second cylinders respectively drive the first slider 13 and the second slider 14 to move upward, so that the selected multiple support shafts 15 are respectively extended into multiple straightening holes; the bottom end of the steel pipe a to be straightened is inserted into the straightening hole and sleeved on the support shaft 15, and the top end of the steel pipe a is stuck in the annular groove 10 of suitable size, and the first cylinder 5 drives the pressing plate 3 to move downward, pushing the steel pipe a to move downward along the support shaft 15; under the action of the straightening die 8 and the support shaft 15, the straightening work of the steel pipe a is completed. The present invention has a simple structure and is easy to operate. It can straighten multiple steel pipes a at the same time, and can perform straightening processing on steel pipes a of different sizes with high straightening accuracy.

[0025] In this embodiment, a fixing ring 9 is provided on the outer side of the top of the straightening die 8, the outer diameter of the fixing plate is larger than the diameter of the mounting hole, a plurality of first assembly holes are provided on the fixing ring 9, and second assembly holes are provided at positions corresponding to the plurality of first assembly holes on the straightening plate 2, and the second assembly holes are connected to the first assembly holes by bolts. This arrangement facilitates the replacement of the straightening die to adapt to the straightening processing of steel pipes of different sizes.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A seamless steel pipe straightening device, characterized in that: It comprises a receiving plate (1), a straightening plate (2), a pressing plate (3), a mounting plate (4) and a first cylinder (5); The receiving plate (1) is arranged horizontally, and two ends of the receiving plate (1) are provided with a first bracket (6) and a second bracket (7) arranged vertically; The straightening plate (2) is located above the receiving plate (1) and is parallel to the receiving plate (1), and the two ends of the straightening plate (2) are respectively connected to the first bracket (6) and the second bracket (7); the straightening plate (2) is provided with a plurality of mounting holes penetrating the upper and lower surfaces thereof, and a straightening die (8) is installed in the mounting holes, and the straightening die (8) is provided with straightening holes penetrating the upper and lower surfaces thereof; The pressing plate (3) is located above the straightening plate (2) and is parallel to the straightening plate (2), and two ends of the pressing plate (3) are respectively connected to the first bracket (6) and the second bracket (7) in a sliding manner; The mounting plate (4) is located above the pressing plate (3), and two ends of the mounting plate (4) are respectively connected to the first bracket (6) and the second bracket (7); The first cylinder (5) is mounted on the mounting plate (4), and the first cylinder (5) is connected to the pressing plate (3) and drives the pressing plate (3) to move up and down in a vertical direction; A fixing ring (9) is provided on the outer side of the top end of the straightening die (8), the outer diameter of the fixing ring (9) is larger than the diameter of the mounting hole, a plurality of first assembly holes are provided on the fixing ring (9), second assembly holes are provided at positions corresponding to the plurality of first assembly holes on the straightening plate (2), and the second assembly holes are connected to the first assembly holes by bolts; The straightening dies (8) are all cylindrical and the outer diameter of the straightening dies (8) is equal to the diameter of the mounting hole.

2. The seamless steel pipe straightening equipment according to claim 1, characterized in that: A plurality of concentrically arranged annular grooves (10) with different diameters are provided at the bottom end of the pressing plate (3) above each mounting hole, the diameter of the outermost annular groove (10) being smaller than the diameter of the mounting hole, and the central axes of the plurality of annular grooves (10) coincide with the central axes of the mounting hole.

3. The seamless steel pipe straightening equipment according to claim 1, characterized in that: The invention also comprises a rotating shaft (11), a driving motor (12) and two second cylinders. A first slider (13) is slidably mounted on the first bracket (6) at a position between the straightening plate (2) and the receiving plate (1). A second slider (14) is slidably mounted on the second bracket (7) at a position between the straightening plate (2) and the receiving plate (1). The two second cylinders are mounted on the receiving plate and are respectively connected to the first slider (13) and the second slider (14). The driving motor (12) is mounted on the second slider (14). The rotating shaft (11) is located between the straightening plate (2) and the receiving plate (1) and is parallel to the receiving plate (1). One end of the rotating shaft is connected to the first slider (13) and the other end is connected to the driving motor (12). A plurality of supporting members are arranged circumferentially on the outside of the rotating shaft. The supporting members include a plurality of supporting shafts (15) arranged axially along the rotating shaft (11). The plurality of supporting shafts (15) of each supporting member are respectively arranged in one-to-one correspondence with the plurality of mounting holes.

4. The seamless steel pipe straightening equipment according to claim 3, characterized in that: The diameters of the support shafts (15) of the plurality of support members are different from each other.

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