Efficient machining tool for steel pipe port threads

By improving the steel pipe end threading tool, the steel pipe is prevented from shifting by using components such as a motor and a rotating block, and the thread disc is easily disassembled through a cylinder system. This solves the problems of steel pipe threading accuracy and stability, and improves the ease of operation and equipment reliability.

CN223960653UActive Publication Date: 2026-03-03WUXI GAOYUAN YISHUN METAL PROD CO LTD
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Patent Information

Application Number
CN202520284925.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2026-03-03
Estimated Expiration
2035-02-21

AI Technical Summary

Technical Problem

Existing steel pipe end threading tools are prone to misalignment during processing, resulting in inaccurate thread precision, which affects connection quality and equipment stability.

Method used

The design incorporates components such as a processing device, motor, driven disc, rotating block, ball bearings, and cylinder to ensure that the steel pipe does not deviate during processing. The cylinder drives the driving ring and hollow block to facilitate the disassembly and replacement of the threaded disc.

Benefits of technology

It improves the accuracy and stability of thread processing, reduces the difficulty of operation, makes it suitable for non-professionals to quickly get started, and reduces thread deviation and equipment operation risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of thread cutting, and discloses a steel pipe port thread efficient machining tool which comprises a machining device, a shell is fixedly connected to the interior of the machining device, a motor is fixedly connected to the interior of the shell, a driven disc is fixedly connected to the driving end of the motor, and a rotating block is slidably connected to the outer side of the driven disc. A plurality of balls are rotatably connected to the inner side of the top of the rotating block, a sliding block is slidably connected to the outer side of the machining device, a limiting assembly used for limiting parts is rotatably connected to the outer side of the sliding block, and the end, away from the clamping plate, of the connecting plate is rotatably connected to the interior of the rotating disc. In the utility model, the steel pipe does not deviate in the machining process, and the relative position precision of the steel pipe and a machining cutter can be always kept, so that the parameters such as the thread pitch and the thread form of a machined thread better meet the design requirements, the thread deviation is reduced, and the overall machining precision is improved.
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Description

Technical Field

[0001] This utility model relates to the field of thread cutting technology, and in particular to a high-efficiency tool for machining threads at the ends of steel pipes. Background Technology

[0002] Steel pipes, as hollow, seamless, and diverse long steel materials, are widely used in construction (for structural support and scaffolding construction, offering advantages such as high strength, high plasticity, and cost-effectiveness), energy (for oil and gas transportation and geothermal energy utilization, featuring good sealing, strong corrosion resistance, and high compressive strength), machinery manufacturing (for manufacturing parts and serving as transmission components, possessing advantages such as good processing performance, high wear resistance, and high dimensional accuracy), and daily life and other fields (for home decoration and agricultural irrigation, offering advantages such as aesthetics, versatility, and durability). Among the many industries using steel pipes, the demand for efficient end thread processing tools is crucial, as they can improve production efficiency to meet the needs of large-scale production and shorten cycle times, ensure high precision and stable quality in processing, adapt to diverse needs covering different specifications and special thread processing, and also reduce production costs, reduce labor costs, and improve material utilization.

[0003] High-efficiency machining tools for steel pipe end threads generally consist of a power unit, a machining unit, a control unit, and a positioning and clamping device. The working principles of high-efficiency machining tools for steel pipe end threads are diverse, including cutting machining principle (including tool rotation cutting and multi-tool combination cutting), rolling machining principle (including roller rolling and thread rolling), electrical discharge machining principle (electrode discharge corrosion) and laser machining principle (laser beam melting and evaporation). Each principle is applicable to different scenarios according to processing requirements and material characteristics.

[0004] Existing high-efficiency machining tools for steel pipe ends sometimes deviate during the machining process. This deviation causes the relative position of the tool and the steel pipe to change continuously during the threading process, making it difficult to cut precisely according to preset parameters such as pitch and thread angle. This results in uneven thread pitch and inaccurate thread angle, directly affecting the thread fit accuracy. This can lead to loosening or failure to connect tightly with other threaded components. For steel pipes with high coaxiality requirements, such as those used in precision mechanical transmissions, the deviation can cause the end thread to be misaligned with the steel pipe axis. During assembly and use, this can generate additional stress concentration, affecting the normal operation of the equipment and reducing its stability and service life. Therefore, this high-efficiency machining tool for steel pipe ends is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a high-efficiency machining tool for steel pipe end threads, which aims to improve the problem that steel pipes cannot be avoided from shifting during machining in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-efficiency tool for machining threads on steel pipe ends includes a machining device. The machining device has a housing fixedly connected inside, and a motor is fixedly connected inside the housing. A driven plate is fixedly connected to the drive end of the motor. A rotating block is slidably connected to the outer side of the driven plate. Multiple balls are rotatably connected to the inner top of the rotating block. A sliding block is slidably connected to the outer side of the machining device, and a limiting component for restricting the part is rotatably connected to the outer side of the sliding block.

[0008] As a further description of the above technical solution:

[0009] The limiting component includes a rotating disk, the inner side of which is rotatably connected to the outer side of the sliding block. A second cylinder is rotatably connected to the end of the rotating disk away from the sliding block. A driving ring is rotatably connected to the driving end of the second cylinder. Multiple hollow blocks are rotatably connected inside the driving ring. A connecting plate is slidably connected inside the hollow blocks. A clamping plate is fixedly connected to one end of the connecting plate. A threaded disk is slidably connected to the inner side of the clamping plate.

[0010] As a further description of the above technical solution:

[0011] The end of the connecting plate away from the clamping plate is rotatably connected to the inside of the rotating disk, and one side of the clamping plate is slidably connected to the outside of the rotating disk;

[0012] As a further description of the above technical solution:

[0013] One end of the threaded disc is slidably connected to the outside of the rotating disc, and the inner side of the driving ring is rotatably connected to the outside of the rotating disc.

[0014] As a further description of the above technical solution:

[0015] A spring is fixedly connected to the outer side of the rotating block, and the other end of the spring is fixedly connected to the inside of the outer shell;

[0016] As a further description of the above technical solution:

[0017] The outer side of the rotating block is rotatably connected to the inside of the outer shell, and multiple rotating wheels are fixedly connected to the top of the processing device;

[0018] As a further description of the above technical solution:

[0019] A cylinder is fixedly connected to the outside of the processing device, and the driving end of the cylinder is fixedly connected to the top of the sliding block.

[0020] As a further description of the above technical solution:

[0021] A steel pipe placement rod is fixedly connected to the outside of the processing device, and a control board is fixedly connected to the outside of the processing device.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the driven plate is driven by the starting motor, the driven plate drives the rotating block, and the rotating block cooperates with the ball bearing, thereby preventing the steel pipe from shifting during processing. The steel pipe does not shift during processing and can always maintain the relative positional accuracy with the processing tool, so that the parameters such as the pitch and tooth profile of the processed thread are more in line with the design requirements, reducing thread deviation and improving the overall processing accuracy.

[0024] 2. In this utility model, by starting cylinder two, the driving ring is driven, the driving ring drives the hollow block, the hollow block drives the connecting plate, and the connecting plate drives the clamping plate, thus enabling the threaded disc to be disassembled and replaced without tools. This eliminates the traditional complicated tool operation steps. The operator only needs to control the movement of cylinder two to complete the disassembly and replacement of the threaded disc, reducing the difficulty of operation. Even non-professional maintenance personnel can quickly get started. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the high-efficiency machining tool for steel pipe end threads proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the thread disc of the high-efficiency machining tool for steel pipe end threads proposed in this utility model.

[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0029] Legend:

[0030] 1. Processing device; 2. Control panel; 3. Cylinder 1; 4. Sliding block; 5. Rotating disc; 6. Cylinder 2; 7. Drive ring; 8. Hollow block; 9. Connecting plate; 10. Clamping plate; 11. Threaded disc; 12. Steel pipe placement rod; 13. Outer shell; 14. Motor; 15. Driven disc; 16. Rotating block; 17. Ball bearing; 18. Spring; 19. Rotating wheel. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 , Figure 2 , Figure 4 One embodiment of this utility model provides a high-efficiency tool for processing threads on steel pipe ends, including a processing device 1. A control board 2 is fixedly connected to the outside of the processing device 1. The control board 2 has a clear and intuitive operation interface, which allows the operator to conveniently and accurately adjust the device's operating parameters, such as processing speed, start and stop, etc., thereby effectively controlling the entire processing process.

[0033] A steel pipe placement rod 12 is fixedly connected to the outside of the processing device 1, which can provide stable support and precise positioning for the steel pipe, ensuring that the steel pipe is in the correct position during processing and guaranteeing the accuracy of the thread position. A cylinder 3 is fixedly connected to the outside of the processing device 1, whose output power is stable and controllable, and can accurately and smoothly push the sliding block 4 downward to prepare for subsequent processing. Multiple rotating wheels 19 are fixedly connected to the top of the processing device 1, which makes the device move more flexibly and smoothly, and facilitates quick deployment in different working scenarios.

[0034] The processing device 1 is internally fixedly connected to a housing 13, which can effectively protect internal components such as the motor 14, prevent external interference, and ensure stable operation of the device. The housing 13 is internally fixedly connected to a motor 14, which can provide a continuous and stable driving force to the driven plate 15, ensuring that the driven plate 15 rotates at a set speed, providing a power basis for fixing and processing the steel pipe. The drive end of the motor 14 is fixedly connected to the driven plate 15. When the driven plate 15 rotates, it can accurately squeeze the rotating block 16 through the outer protrusion, thereby achieving stable fixing of the steel pipe.

[0035] A rotating block 16 is slidably connected to the outer side of the driven plate 15. The rotating block 16 flexibly changes position under the action of the driven plate 15, with its lower end rotating to both sides and its upper end moving together, thereby firmly clamping the steel pipe. The outer side of the rotating block 16 is rotatably connected to the inside of the outer shell 13. The outer shell 13 provides a stable support structure for the rotation of the rotating block 16, making its operation smoother and more reliable. A spring 18 is fixedly connected to the outer side of the rotating block 16. The spring 18 plays a buffering and resetting role when the rotating block 16 moves, ensuring that its clamping force on the steel pipe is moderate and stable. The other end of the spring 18 is fixedly connected to the inside of the outer shell 13, ensuring that the spring 18 plays an effective role and assists the rotating block 16 in better completing the fixing and loosening of the steel pipe.

[0036] Multiple balls 17 are rotatably connected to the inner top of the rotating block 16. The balls 17 can greatly reduce the friction when the steel pipe rotates, allowing the steel pipe to rotate smoothly during processing and avoiding affecting the processing effect. A sliding block 4 is slidably connected to the outer side of the processing device 1. The sliding block 4 can slide stably along the outer side of the device under the push of the cylinder 3, driving the subsequent parts to accurately reach the processing position.

[0037] Reference Figures 1 to 3 The limiting components include a rotating disk 5, the inner side of which is rotatably connected to the outer side of the sliding block 4. The rotating disk 5 can move smoothly with the sliding block 4 and can rotate flexibly itself, providing a flexible motion basis for the processing action of the threaded disk 11. A cylinder 6 is rotatably connected to the end of the rotating disk 5 away from the sliding block 4. The cylinder 6 can provide stable power output and accurately control the rotation of the drive ring 7. The drive end of the cylinder 6 is rotatably connected to the drive ring 7. The drive ring 7 rotates smoothly and can accurately drive the multiple hollow blocks 8 inside it to rotate synchronously.

[0038] The inner side of the drive ring 7 is rotatably connected to the outer side of the rotating disk 5. This connection method makes the drive ring 7 more stable when rotating and ensures accurate relative position with the rotating disk 5. Multiple hollow blocks 8 are rotatably connected inside the drive ring 7. The hollow blocks 8 can be adjusted slightly under the drive ring 7 to provide necessary motion changes for subsequent actions. A connecting plate 9 is slidably connected inside the hollow blocks 8. The connecting plate 9 can slide flexibly inside the hollow blocks 8 to transmit the motion of the hollow blocks 8 to the clamping plate 10. The end of the connecting plate 9 away from the clamping plate 10 is rotatably connected to the inside of the rotating disk 5. This connection method makes the motion of the connecting plate 9 more stable and controllable.

[0039] One end of the connecting plate 9 is fixedly connected to a clamping plate 10. Under the action of the connecting plate 9, the clamping plate 10 can accurately clamp or release the threaded disc 11, ensuring that the threaded disc 11 is fixed in position during processing and can be easily removed when it needs to be replaced. One side of the clamping plate 10 is slidably connected to the outside of the rotating disk 5 to ensure the stability and accuracy of the movement of the clamping plate 10. The threaded disc 11 is slidably connected to the inside of the clamping plate 10. Under the clamping of the clamping plate 10, the threaded disc 11 can stably perform thread processing on the steel pipe, and can slide out smoothly from the inside of the clamping plate 10 when it needs to be replaced. One end of the threaded disc 11 is slidably connected to the outside of the rotating disk 5 to ensure the stability and accuracy of the threaded disc 11 when it is driven by the rotating disk 5.

[0040] Working principle: When the operator needs to thread the end of the steel pipe, one end of the steel pipe is placed on the outside of the steel pipe placement rod 12. At this time, the starting cylinder 3 pushes the sliding block 4 downward, causing the sliding block 4 to drive the rotating disk 5. When the sliding block 4 slides to the appropriate position, the rotating disk 5 is started, which drives the threading disk 11, allowing the threading disk 11 to process the outside of the steel pipe. When the threading disk 11 needs maintenance or replacement, the second cylinder 6 is started, which drives the driving ring 7. When the driving ring 7 rotates... Then, it will move the multiple hollow blocks 8 inside together. Because the connecting plate 9 inside is in its original position, the hollow block 8 can only adjust its angle slightly. Since one end of the connecting plate 9 rotates inside the rotating disk 5, the hollow block 8 cannot move the connecting plate 9 together because one end of the connecting plate 9 is restricted. At this time, the driving ring 7 will rotate continuously, causing the hollow block 8 and the connecting plate 9 to rotate slightly, so that the connecting plate 9 drives the clamping plate 10 to slide to the outside of one end of the threaded disk 11. At this time, the threaded disk 11 can be removed from the restriction of the multiple clamping plates 10.

[0041] When the steel pipe needs to be processed, it can be placed inside the two rotating blocks 16. Then, the motor 14 is started, which drives the driven plate 15. The rotating blocks 16 are squeezed to both sides by the protrusions on the outside of the driven plate 15 due to the rotation of the driven plate 15. At this time, the lower end of the rotating blocks 16 rotates to both sides, while the upper end of the rotating blocks 16 moves together, thus fixing the steel pipe. When the steel pipe is processed, the steel pipe placement rod 12 will drive the steel pipe to rotate. The end of the rotating block 16 that holds the outer side of the steel pipe has multiple balls 17 connected inside. These balls 17 can prevent the steel pipe from not rotating during processing.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency tool for machining threads on steel pipe ends, comprising a machining device (1), characterized in that: The processing device (1) is fixedly connected to a housing (13), and a motor (14) is fixedly connected to the inside of the housing (13). A driven disk (15) is fixedly connected to the drive end of the motor (14). A rotating block (16) is slidably connected to the outside of the driven disk (15). A plurality of balls (17) are rotatably connected to the top inner side of the rotating block (16). A sliding block (4) is slidably connected to the outside of the processing device (1), and a limiting component for restricting the parts is rotatably connected to the outside of the sliding block (4).

2. The high-efficiency tool for machining steel pipe end threads according to claim 1, characterized in that: The limiting component includes a rotating disk (5), the inner side of which is rotatably connected to the outer side of the sliding block (4). A cylinder (6) is rotatably connected to the end of the rotating disk (5) away from the sliding block (4). A driving ring (7) is rotatably connected to the driving end of the cylinder (6). A plurality of hollow blocks (8) are rotatably connected inside the driving ring (7). A connecting plate (9) is slidably connected inside the hollow block (8). A clamping plate (10) is fixedly connected to one end of the connecting plate (9). A threaded disk (11) is slidably connected to the inner side of the clamping plate (10).

3. The high-efficiency tool for machining steel pipe end threads according to claim 2, characterized in that: The end of the connecting plate (9) away from the clamping plate (10) is rotatably connected to the inside of the rotating disk (5), and one side of the clamping plate (10) is slidably connected to the outside of the rotating disk (5).

4. The high-efficiency tool for machining steel pipe end threads according to claim 2, characterized in that: One end of the threaded disc (11) is slidably connected to the outside of the rotating disc (5), and the inner side of the driving ring (7) is rotatably connected to the outside of the rotating disc (5).

5. The high-efficiency tool for machining steel pipe end threads according to claim 1, characterized in that: A spring (18) is fixedly connected to the outside of the rotating block (16), and the other end of the spring (18) is fixedly connected to the inside of the outer shell (13).

6. The high-efficiency tool for machining steel pipe end threads according to claim 1, characterized in that: The outer side of the rotating block (16) is rotatably connected to the inside of the outer shell (13), and a plurality of rotating wheels (19) are fixedly connected to the top of the processing device (1).

7. The high-efficiency tool for machining steel pipe end threads according to claim 1, characterized in that: A cylinder (3) is fixedly connected to the outside of the processing device (1), and the driving end of the cylinder (3) is fixedly connected to the top of the sliding block (4).

8. The high-efficiency tool for machining steel pipe end threads according to claim 1, characterized in that: A steel pipe placement rod (12) is fixedly connected to the outside of the processing device (1), and a control plate (2) is fixedly connected to the outside of the processing device (1).