Steel pipe fixing device of steel pipe perforating machine

By designing a fixing device, using positive and negative screws and a motor to drive the slider and moving parts, and wrapping the fixing belt to fix the thin-walled steel pipe, the problem of deformation of the thin-walled steel pipe during the piercing process is solved, and stable piercing is achieved.

CN224115672UActive Publication Date: 2026-04-14QINGDAO SHUANGYUAN STEEL STRUCTURE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO SHUANGYUAN STEEL STRUCTURE CO LTD
Filing Date
2025-05-20
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In the prior art, thin-walled steel pipes are easily deformed by the squeezing of the clamping device during the piercing process, which can lead to damage to the steel pipe and the piercing device.

Method used

The device employs a combination of a fixing mechanism, including a positive and negative screw, a motor, a slider, a movable part, a fixed part, and a fixing belt. The positive and negative screw drives the slider and movable part, causing the fixing belt to wrap around the steel pipe to prevent compression and deformation. The device is then perforated using a telescopic rod and a perforating motor.

Benefits of technology

This method achieves stable fixation of thin-walled steel pipes, avoids extrusion deformation, and ensures the smooth progress of the piercing process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of steel pipe perforating devices, and discloses a steel pipe fixing device of a steel pipe perforating machine, which comprises a working table provided with a mounting seat and an L-shaped plate arranged on one side of the working table. Fixing devices which are symmetrically arranged and can fix a steel pipe are arranged on the mounting base, a telescopic rod is arranged at the end, away from the workbench, of the L-shaped plate, and a perforating device is arranged at the output end of the telescopic rod; the fixing device comprises a positive and negative screw penetrating through the mounting base, a motor connected with the positive and negative screw is arranged on one side of the mounting base, sliding blocks symmetrically arranged are arranged on the positive and negative screw in a sleeving mode, movable parts are hinged to the sliding blocks, fixing parts are arranged on the sliding blocks, and the movable parts are connected with the fixing parts. And a spring of which the other end is fixedly connected with the movable part is fixedly arranged on the fixed part. Compared with the prior art, the thin-wall steel pipe fixing device has the advantages that the thin-wall steel pipe can be fixed, and the thin-wall steel pipe cannot be extruded and deformed.
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Description

Technical Field

[0001] This utility model relates to the technical field of steel pipe piercing devices, specifically to a steel pipe fixing device for a steel pipe piercing machine. Background Technology

[0002] Steel pipes are steel materials with hollow cross sections, whose length is much greater than their diameter or circumference.

[0003] Thin-walled steel pipes are steel pipes with an outer diameter-to-wall thickness ratio greater than 20. All thin-walled steel pipes are cold-drawn. Carbon steel, low-alloy steel, and alloy steel thin-walled pipes are suitable for general structures and mechanical components; thin-walled fluid steel pipes are used for transporting general fluids; stainless steel thin-walled pipes are used in heat-resistant containers, pipelines, and mechanical structural components in industries such as chemical, petroleum, light industry, food, and machinery.

[0004] When piercing steel pipes, the pipes need to be fixed to prevent them from shaking during the piercing process, which could damage the pipes or the piercing device. When fixing thin-walled steel pipes, the clamping device often squeezes and deforms the thin-walled steel pipes, which needs to be improved. Utility Model Content

[0005] (I) Technical problems to be solved

[0006] The technical problem to be solved by this utility model is to overcome the above difficulties and provide a steel pipe fixing device for a steel pipe piercing machine that can fix thin-walled steel pipes without causing them to be squeezed and deformed.

[0007] (II) Technical Solution

[0008] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a steel pipe fixing device for a steel pipe piercing machine, including a workbench, wherein the workbench is provided with a mounting seat and an L-shaped plate disposed on one side of the workbench;

[0009] The mounting base is provided with symmetrically arranged fixing devices that can fix the steel pipe. The L-shaped plate is provided with a telescopic rod at the end away from the workbench, and the output end of the telescopic rod is provided with a through-hole device.

[0010] The fixing device includes a positive and negative screw rod that passes through the mounting base. A motor connected to the positive and negative screw rod is provided on one side of the mounting base. A slider is symmetrically arranged on the positive and negative screw rod. A movable part is hinged on the slider. A fixed part is provided on the slider. A spring with its other end fixedly connected to the movable part is fixed on the fixed part. A fixing strap that can be detached and can wrap and fix the steel pipe is provided between the movable parts.

[0011] As an improvement, the perforation device includes a perforation motor located at the output end of the telescopic rod, and the output end of the perforation motor is provided with a perforation drill bit.

[0012] As an improvement, the mounting base is provided with symmetrically arranged grooves, and the fixing device is disposed in the grooves.

[0013] As an improvement, the end of the movable part is provided with a fixing groove, and a fixing strip is fixedly provided in the fixing groove on the fixing band.

[0014] (III) Beneficial Effects

[0015] The advantages of this utility model compared with the prior art are as follows:

[0016] 1. The positive and negative screws, motor, slider, movable parts, fixed parts, springs and fixing belts on the fixing device cooperate to fix the thin-walled steel pipe. There are two fixing devices, which can fix the thin-walled steel pipe from the front and back.

[0017] 2. The fixing strap is made of soft material, which can wrap around the thin-walled steel pipe for fixing without squeezing or deforming the thin-walled steel pipe;

[0018] 3. The telescopic rod and the perforating device work together to perform perforation operations on thin-walled steel pipes. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a top view of the structure of this utility model.

[0021] Figure 3 This is a utility model Figure 2 A schematic diagram of the structure in cross-section at point AA.

[0022] Figure 4 This is a utility model Figure 2 A schematic diagram of the structure in cross-section at point BB.

[0023] As shown in the figure: 1. Workbench; 2. Mounting base; 3. L-shaped plate; 4. Fixing device; 5. Telescopic rod; 6. Drilling device; 7. Positive and negative screws; 8. Motor; 9. Slider; 10. Moving part; 11. Fixing part; 12. Spring; 13. Fixing strap; 14. Drilling motor; 15. Drill bit; 16. Groove; 17. Fixing groove; 18. Fixing strip. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Example

[0025] Combined with appendix Figure 1-4 A steel pipe fixing device for a steel pipe piercing machine includes a workbench 1, on which a mounting base 2 and an L-shaped plate 3 are provided on one side of the workbench 1.

[0026] The mounting base 2 is provided with symmetrically arranged fixing devices 4 that can fix the steel pipe. The L-shaped plate 3 is provided with a telescopic rod 5 at the end away from the workbench 1. The output end of the telescopic rod 5 is provided with a perforation device 6.

[0027] The fixing device 4 includes a positive and negative screw 7 that passes through the mounting base 2. A motor 8 connected to the positive and negative screw 7 is provided on one side of the mounting base 2. A slider 9 is symmetrically arranged on the positive and negative screw 7. A movable part 10 is hinged on the slider 9. A fixing part 11 is provided on the slider 9. A spring 12 with its other end fixedly connected to the movable part 10 is fixed on the fixing part 11. A detachable fixing strap 13 is provided between the movable parts 10 to wrap and fix the steel pipe.

[0028] The thin-walled steel pipe is placed on the fixing belt 13, and the motor 8 is controlled to rotate. The rotation of the motor 8 drives the positive and negative screws 7 to rotate. The positive and negative screws 7 drive the sliders 9 to move closer to each other. The sliders 9 drive the movable parts 10 to move closer to each other. The fixing belt 13 will wrap around the steel pipe. The movable parts 10 abut against the fixing belt 13 that wraps the steel pipe. The movable parts 10 rotate and move towards the top of the steel pipe, cooperating with the fixing belt 13 to squeeze and fix the steel pipe.

[0029] The perforation device 6 includes a perforation motor 14 located at the output end of the telescopic rod 5. The output end of the perforation motor 14 is equipped with a perforation drill bit 15. The telescopic rod 5 drives the perforation device 6 to move downward, and the perforation motor 14 drives the perforation drill bit 15 to rotate, thereby perforating the thin-walled steel pipe.

[0030] The mounting base 2 is provided with symmetrically arranged grooves 16, and the fixing device 4 is located in the grooves 16.

[0031] The end of the movable part 10 is provided with a fixing groove 17, and a fixing strip 18 is fixedly provided on the fixing band 13 within the fixing groove 17.

[0032] The telescopic rod 5, motor 8, and perforated motor 14 mentioned in this utility model, along with their matching power supply and controller, can be provided by the manufacturer. Apart from that, the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon.

[0033] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, alterations, deletions of some features, additions of features, or recombinations of features to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the innovative principles of the present invention shall still fall within the scope of the technical solutions of the present invention.

Claims

1. A steel pipe fixing device for a steel pipe piercing machine, comprising a worktable, characterized in that: The workbench is equipped with a mounting base and an L-shaped plate located on one side of the workbench; The mounting base is provided with symmetrically arranged fixing devices that can fix the steel pipe. The L-shaped plate is provided with a telescopic rod at the end away from the workbench, and the output end of the telescopic rod is provided with a through-hole device. The fixing device includes a positive and negative screw rod that passes through the mounting base. A motor connected to the positive and negative screw rod is provided on one side of the mounting base. A slider is symmetrically arranged on the positive and negative screw rod. A movable part is hinged on the slider. A fixed part is provided on the slider. A spring with its other end fixedly connected to the movable part is fixed on the fixed part. A fixing strap that can be detached and can wrap and fix the steel pipe is provided between the movable parts.

2. A tube holding device for a tube piercing mill as claimed in claim 1, characterized in that: The perforation device includes a perforation motor located at the output end of the telescopic rod, and the output end of the perforation motor is provided with a perforation drill bit.

3. The steel pipe fixing device for a steel pipe piercing machine according to claim 1, characterized in that: The mounting base has symmetrically arranged grooves, and the fixing device is located in the grooves.

4. The steel pipe fixing device for a steel pipe piercing machine according to claim 1, characterized in that: The end of the movable part is provided with a fixing groove, and the fixing band is provided with a fixing strip located in the fixing groove.