Locomotive welded pipe correcting device with limiting structure

Through a locomotive welded pipe correction device equipped with a limit structure, the welded pipe is clamped and corrected by using a bidirectional screw and an electric cylinder to drive the correction roller to clamp and correct the welded pipe, which solves the displacement problem caused by mechanical force during the correction process, and improves the correction accuracy and stability sex.

CN222343844UActive Publication Date: 2025-01-14ZHANGJIAGANG HUACHENG LOCOMOTIVE PRECISION PIPE MFG
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Patent Information

Application Number
CN202421194144.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-29
Publication Date
2025-01-14
Estimated Expiration
2034-05-29

AI Technical Summary

Technical Problem

During the welding pipe correction process, mechanical force causes the welded pipe to shift, affecting the correction accuracy and stability. The welded pipe needs to be positioned and fixed to ensure the accuracy of the correction process.

Method used

A locomotive welded pipe correction device with a limit structure is designed. Through the bidirectional screw, electric cylinder and correction roller on the operating table, the bidirectional screw and electric push rod are driven to drive the limit plate and correction roller to move, so as to realize the welded pipe clamping and correction ensure the accuracy and stability of the correction process.

Benefits of technology

Effectively prevent the welded pipe from displaced due to mechanical force during the correction process, ensure the correcting accuracy of the straightness and roundness of the welded pipe, and improve the accuracy and stability of the correction process.

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    Figure CN222343844U_ABST
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Abstract

The utility model relates to the technical field of locomotive welded pipe correcting devices, in particular to a locomotive welded pipe correcting device with a limiting structure. The first motor is started to drive the two-way lead screw to rotate, the two nut plates in threaded connection with the two-way lead screw drive the two moving blocks to get away from or get close to each other, the two moving blocks drive the two mounting frames to get away from or get close to each other until the two mounting frames move to the two ends of a welded pipe, and the electric cylinder is started to drive the limiting plate to move. An electric push rod is started to drive a movable plate and a fixed plate to move, a straightening roller is driven to move so that the straightening roller can be tightly attached to the two sides of the welded pipe, a second motor is started to drive the straightening roller to tightly rotate, and the straightness and roundness of the welded pipe are straightened; the locomotive welding pipe can be prevented from displacing due to the acting force generated when the locomotive welding pipe is corrected, the welding pipe can be positioned and fixed, and the accuracy and stability of the correction process are ensured.
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Description

Technical Field

[0001] The utility model relates to the technical field of locomotive welded pipe correction devices, in particular to a locomotive welded pipe correction device provided with a limiting structure. Background Art

[0002] The locomotive welded pipe correction device is a device used to correct the shape of the welded pipe. It is mainly used to solve the bending and twisting problems of the welded pipe caused by various reasons during the production process to ensure that the straightness and roundness of the welded pipe meet the design requirements.

[0003] However, during the correction process, the mechanical force exerted by the correction device on the welded pipe will cause the locomotive welded pipe to be displaced, affecting the accuracy of the correction of the welded pipe. This requires the welded pipe to be positioned and fixed to ensure the accuracy and stability of the correction process. For this reason, a locomotive welded pipe correction device with a limiting structure is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a locomotive welded pipe correction device with a limiting structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a locomotive welded pipe correction device with a limiting structure, comprising an operating table, an installation groove is opened on the upper surface of the operating table, and a bidirectional screw is rotatably connected to the inner side wall of the installation groove through a bearing, a first motor is fixedly installed on the right surface of the operating table, the output shaft end of the first motor passes through the right surface of the operating table and is fixedly connected to the right end of the bidirectional screw, two nut plates are threadedly connected to the outer side wall of the bidirectional screw, a moving block is fixedly connected to the upper surface of the nut plate, a mounting frame is fixedly connected to the upper surface of the moving block, two electric cylinders are fixedly connected to the inner side wall of the mounting frame, one end of the piston rod of the electric cylinder is fixedly connected to the limiting plate, two mounting plates are symmetrically welded on the upper surface of the operating table, electric push rods are fixedly connected to the sides close to the two mounting plates, one end of the piston rod of the electric push rod is fixedly connected to the moving plate, and two fixed plates are welded to the side of the moving plate away from the electric push rod, a second motor is fixedly connected to the right surface of one of the fixed plates, and a correction roller is provided between the two fixed plates.

[0006] As a further preferred embodiment of the present technical solution: the output shaft end of the second motor passes through the fixed plate and is fixedly connected with a rotating shaft, the rotating shaft and the fixed plate are rotatably connected via a bearing, and the outer wall of the rotating shaft is fixedly connected to the inner wall of the correction roller.

[0007] As a further preferred embodiment of the present technical solution: the outer side wall of the bidirectional screw rod is provided with two sections of threads in opposite directions, and the threads at both ends are respectively threadedly connected to the two nut plates.

[0008] As a further preferred embodiment of the present technical solution: two guide rods are fixedly connected to the inner side wall of the installation groove, and the outer side wall of the guide rod is slidably connected to the nut plate.

[0009] As a further preferred embodiment of the present technical solution: a limiting groove is provided on the outer side wall of the limiting plate.

[0010] As a further preferred embodiment of the present technical solution: four legs are welded to the lower surface of the operating table.

[0011] As a further preferred embodiment of the technical solution: an operation indicator board is fixedly connected to the right side of the upper surface of the operating table.

[0012] As a further preferred embodiment of the present technical solution: a tool box is fixedly connected to the left side of the front surface of the operating table.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model lifts the welded pipe to be corrected above the operating table, starts the first motor to drive the bidirectional lead screw to rotate, and the two nut plates threadedly connected to the bidirectional lead screw drive the two moving blocks to move away from or approach each other, and the two moving blocks drive the two mounting frames to move away from or approach each other, until the two mounting frames move to the two ends of the welded pipe, and starts the electric cylinder to drive the limit plate to move, so that the four limit plates are close to the two ends of the welded pipe at the same time, and the welded pipe is clamped and fixed, and the electric push rod is started to drive the moving plate and the fixed plate to move, and the correction rollers are driven to move so that the correction rollers are tightly attached to the two sides of the welded pipe, and the second motor is started to drive the correction rollers to rotate tightly, so as to correct the straightness and roundness of the welded pipe. The utility model can prevent the locomotive welded pipe from being displaced by the force when correcting it, and can position and fix the welded pipe, thereby ensuring the accuracy and stability of the correction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the nut plate and the bidirectional screw rod in the utility model;

[0017] Figure 3 It is a structural schematic diagram of the mounting frame and the limiting plate in the utility model;

[0018] Figure 4 It is a structural schematic diagram of the correction roller in the utility model.

[0019] In the figure: 1. operating table; 2. mounting slot; 3. bidirectional screw; 4. first motor; 5. nut plate; 6. moving block; 7. mounting frame; 8. electric cylinder; 9. limit plate; 10. mounting plate; 11. electric push rod; 12. moving plate; 13. fixed plate; 14. second motor; 15. correction roller; 16. rotating shaft; 17. guide rod; 18. limit slot; 19. support leg; 20. operation sign; 21. tool box. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as limitations on the present application. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "set" 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 or an electrical connection; 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 this application can be understood according to specific circumstances.

[0022] See also Figure 1-4The utility model provides a technical solution: a locomotive welded pipe correction device with a limiting structure, comprising an operating table 1, an installation groove 2 is opened on the upper surface of the operating table 1, and a bidirectional screw rod 3 is rotatably connected to the inner side wall of the installation groove 2 through a bearing, a first motor 4 is fixedly installed on the right surface of the operating table 1, and the output shaft end of the first motor 4 passes through the right surface of the operating table 1 and is fixedly connected to the right end of the bidirectional screw rod 3, two nut plates 5 are threadedly connected to the outer side wall of the bidirectional screw rod 3, a moving block 6 is fixedly connected to the upper surface of the nut plate 5, a mounting frame 7 is fixedly connected to the upper surface of the moving block 6, two electric cylinders 8 are fixedly connected to the inner side wall of the mounting frame 7, one end of the piston rod of the electric cylinder 8 is fixedly connected to the limiting plate 9, and two mounting plates 10 are symmetrically welded on the upper surface of the operating table 1, and an electric push rod 11 is fixedly connected to one side of the two mounting plates 10, and one end of the piston rod of the electric push rod 11 is fixed A movable plate 12 is connected, and two fixed plates 13 are welded on one side of the movable plate 12 away from the electric push rod 11, and a second motor 14 is fixedly connected to the right surface of one of the fixed plates 13, and a correction roller 15 is arranged between the two fixed plates 13; the welded pipe to be corrected is lifted above the operating table 1, and the first motor 4 is started to drive the bidirectional screw rod 3 to rotate, and the two nut plates 5 threadedly connected to the bidirectional screw rod 3 drive the two movable blocks 6 to move away from or approach each other, and the two movable blocks 6 drive the two mounting frames 7 to move away from or approach each other until the two mounting frames 7 move to the two ends of the welded pipe, and the electric cylinder 8 is started to drive the limit plate 9 to move, so that the four limit plates 9 are close to the two ends of the welded pipe at the same time, and the welded pipe is fixed, and the electric push rod 11 is started to drive the movable plate 12 and the fixed plate 13 to move, and drive the correction roller 15 to move so that the correction roller 15 is close to the two sides of the welded pipe, and the second motor 14 is started to drive the correction roller 15 to rotate closely, and the straightness and roundness of the welded pipe are corrected.

[0023] In this embodiment, specifically: the output shaft end of the second motor 14 passes through the fixed plate 13 and is fixedly connected with a rotating shaft 16, the rotating shaft 16 and the fixed plate 13 are rotatably connected via a bearing, and the outer wall of the rotating shaft 16 is fixedly connected to the inner wall of the straightening roller 15; the second motor 14 is started to drive the rotating shaft 16 to rotate, and the rotating shaft 16 drives the straightening roller 15 to rotate.

[0024] In this embodiment, specifically: the outer side wall of the bidirectional screw rod 3 is provided with two sections of threads in opposite directions, and the threads at both ends are respectively threadedly connected with the two nut plates 5, so that the two nut plates 5 can move away from or approach each other.

[0025] In this embodiment, specifically: the inner wall of the mounting groove 2 is fixedly connected with two guide rods 17, and the outer wall of the guide rod 17 is slidably connected to the nut plate 5; so that the nut plate 5 does not rotate with the rotation of the bidirectional screw 3, but keeps moving in the direction of the guide rod 17.

[0026] In this embodiment, specifically: a limiting groove 18 is provided on the outer side wall of the limiting plate 9 to facilitate clamping the welding pipe in the limiting groove 18 .

[0027] In this embodiment, specifically: four legs 19 are welded on the lower surface of the operating table 1 , and are used to support the operating table 1 .

[0028] In this embodiment, specifically: an operation indicator board 20 is fixedly connected to the right side of the upper surface of the operating table 1 .

[0029] In this embodiment, specifically: a tool box 21 is fixedly connected to the left side of the front surface of the operating table 1 to facilitate the placement of various tools.

[0030] The working principle of the utility model is as follows: the welded pipe to be corrected is lifted above the operating table 1, the first motor 4 is started to drive the bidirectional screw rod 3 to rotate, the two nut plates 5 threadedly connected to the bidirectional screw rod 3 drive the two moving blocks 6 to move away from or approach each other, the two moving blocks 6 drive the two mounting frames 7 to move away from or approach each other, until the two mounting frames 7 move to the two ends of the welded pipe, the electric cylinder 8 is started to drive the limit plate 9 to move, so that the four limit plates 9 are close to the two ends of the welded pipe at the same time, and the welded pipe is fixed, the electric push rod 11 is started to drive the moving plate 12 and the fixed plate 13 to move, and the correction roller 15 is driven to move so that the correction roller 15 is close to the two sides of the welded pipe, and the second motor 14 is started to drive the correction roller 15 to rotate closely, and the straightness and roundness of the welded pipe are corrected, thereby forming a locomotive welded pipe correction device with a limiting structure, which prevents the locomotive welded pipe from being displaced by the force when correcting the locomotive welded pipe, can position and fix the welded pipe, and ensures the accuracy and stability of the correction process.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A locomotive welded pipe correction device provided with a limiting structure, comprising an operating table (1), characterized in that: The upper surface of the operating table (1) is provided with a mounting groove (2), the inner side wall of the mounting groove (2) is rotatably connected to a bidirectional screw rod (3) via a bearing, a first motor (4) is fixedly mounted on the right surface of the operating table (1), the output shaft end of the first motor (4) passes through the right surface of the operating table (1) and is fixedly connected to the right end of the bidirectional screw rod (3), two nut plates (5) are threadedly connected to the outer side wall of the bidirectional screw rod (3), a moving block (6) is fixedly connected to the upper surface of the nut plate (5), a mounting frame (7) is fixedly connected to the upper surface of the moving block (6), and the inner side wall of the mounting frame (7) is fixedly connected to There are two electric cylinders (8), one end of the piston rod of the electric cylinder (8) is fixedly connected to a limit plate (9), two mounting plates (10) are symmetrically welded on the upper surface of the operating table (1), the two mounting plates (10) are fixedly connected to an electric push rod (11) on one side close to each other, one end of the piston rod of the electric push rod (11) is fixedly connected to a moving plate (12), and two fixed plates (13) are welded to the side of the moving plate (12) away from the electric push rod (11), the right surface of one of the fixed plates (13) is fixedly connected to a second motor (14), and a correction roller (15) is provided between the two fixed plates (13).

2. The locomotive welded pipe correction device with a limiting structure according to claim 1 is characterized in that: The output shaft end of the second motor (14) passes through the fixed plate (13) and is fixedly connected to a rotating shaft (16); the rotating shaft (16) and the fixed plate (13) are rotatably connected via a bearing; and the outer wall of the rotating shaft (16) and the inner wall of the correction roller (15) are fixedly connected.

3. The locomotive welded pipe correction device with a limiting structure according to claim 2 is characterized in that: The outer side wall of the bidirectional screw rod (3) is provided with two sections of threads in opposite directions, and the threads at both ends are respectively threadedly connected to the two nut plates (5).

4. The locomotive welded pipe correction device with a limiting structure according to claim 2 is characterized in that: Two guide rods (17) are fixedly connected to the inner side wall of the installation groove (2), and the outer side wall of the guide rod (17) is slidably connected to the nut plate (5).

5. The locomotive welded pipe correction device with a limiting structure according to claim 2 is characterized in that: The outer side wall of the limiting plate (9) is provided with a limiting groove (18).

6. The locomotive welded pipe correction device with a limiting structure according to claim 2 is characterized in that: Four supporting legs (19) are welded to the lower surface of the operating table (1).

7. The locomotive welded pipe correction device with a limiting structure according to claim 6 is characterized in that: An operation indicator board (20) is fixedly connected to the right side of the upper surface of the operating table (1).

8. The locomotive welded pipe correction device with a limiting structure according to claim 6 is characterized in that: A tool box (21) is fixedly connected to the left side of the front surface of the operating table (1).