Autorotation device for steel pipe machining

By using a servo motor-driven rotation and adjustment mechanism, the problems of low automation and unstable clamping in existing steel pipe processing equipment have been solved, enabling stable rotation and precise grinding of the processed parts, thus meeting the processing needs of different specifications and processes.

CN223917562UActive Publication Date: 2026-02-17SHANDONG HUAHE EQUIP CO LTD
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Patent Information

Application Number
CN202521022256.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-23
Publication Date
2026-02-17
Estimated Expiration
2035-05-23

AI Technical Summary

Technical Problem

Existing steel pipe processing equipment requires manual adjustment due to its self-rotation drive, resulting in low automation. The clamping structure is prone to workpiece slippage or surface damage, and it is difficult to achieve precise grinding across the entire circumference and length.

Method used

The rotating and adjusting mechanisms, driven by servo motors, transmit rotational force through gear meshing to achieve stable rotation of the workpiece, and increase friction by combining with clamping pads; the adjusting mechanism achieves precise positioning and movement of the grinder through servo motors and electric push rods, adapting to processing needs in different positions.

Benefits of technology

It achieves stable rotation and precise grinding of the workpiece, avoids slippage and surface damage, meets the processing requirements of different specifications and processes, and improves processing efficiency and automation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an autorotation device for processing steel pipes, which relates to the technical field of steel pipe processing, and comprises a workbench and a mounting rack, the top end of the workbench is fixedly connected with the bottom end of the mounting rack, and the top end of the workbench is respectively and fixedly connected with two fixing blocks. When other surfaces of the machined part are machined, a first servo motor is started through a controller, the first servo motor drives a first rotating rod to rotate, the first rotating rod drives a first gear to rotate synchronously, due to the fact that the first gear is meshed with a second gear, the second gear rotates reversely and drives a second rotating rod to rotate, and the second rotating rod is in sliding connection with a guide block through a connecting block; the rotating force is transmitted to the clamping block, finally, the clamped machined part is driven to stably rotate, the rotating requirement of the machined part during grinding is met, the friction force between the clamping pad and the machined part is increased, the machined part is prevented from slipping in the rotating process, and damage to the surface of the machined part is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of steel pipe processing technology, specifically a self-rotating device for steel pipe processing. Background Technology

[0002] Steel pipe processing plays a vital role in modern industry and is widely used in construction, machinery, automobiles and other fields. Before processing, many steel pipes are covered with rust. The presence of this rust seriously affects the application of the steel pipe in the actual process, so it is necessary to use a grinding device to grind and remove the rust from the surface.

[0003] In the field of machining workpieces, it is often necessary to rotate the workpiece to ensure the uniformity and consistency of the machined surface. However, the rotation drive of existing devices usually requires manual adjustment, resulting in low automation, cumbersome operation, and low efficiency. In addition, the clamping structure often uses simple rigid clamping blocks, which are prone to slippage of the workpiece due to insufficient friction or surface indentation damage due to excessive clamping force. To address these issues, we provide a rotation device for machining steel pipes. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a self-rotating device for processing steel pipes.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotating device for processing steel pipes, comprising a worktable and a mounting frame. The top end of the worktable is fixedly connected to the bottom end of the mounting frame, and two fixing blocks are fixedly connected to the top end of the worktable. A servo motor is provided on the outer side of each fixing block, and a rotating mechanism is rotatably connected inside the fixing block. A workpiece is provided on the inner side of the rotating mechanism. A support block is fixedly connected to the top end of the worktable, and a clamping block is slidably connected to one side of the support block. A clamping rod is rotatably connected to the top end of the clamping block, and a threaded block is threadedly connected to the outer wall of the clamping rod. An adjustment mechanism is rotatably connected to the inner side of the mounting frame, and a grinding machine is provided on the inner side of the adjustment mechanism.

[0006] The aforementioned self-rotating mechanism includes gear one, gear two, rotating rod one, rotating rod two, connecting block, bidirectional threaded rod, and guide block. Gear one and gear two mesh with each other, and the interiors of gear one and gear two are fixedly connected to the outer walls of rotating rod one and rotating rod two, respectively. One end of rotating rod two is fixedly connected to one side of the connecting block. The interior of the connecting block is slidably connected to one side of each of the two guide blocks, and the interiors of both guide blocks are threadedly connected to the outer wall of the bidirectional threaded rod.

[0007] As described above, the two ends of the rotating rod are respectively rotatably connected to the interior of the two fixed blocks, and one end of the bidirectional threaded rod is fixedly connected to the servo motor.

[0008] As described above, two clamping blocks are fixedly connected to the side of the two guide blocks away from the connecting block, and the inner wall of the clamping blocks is tightly attached to the clamping pad.

[0009] The aforementioned adjustment mechanism includes an adjustment rod, an adjustment block, a guide rail, a moving block, and an electric push rod. The outer wall of the adjustment rod is threadedly connected to the inside of the adjustment block, and the bottom of the adjustment block is fixedly connected to the top of the guide rail. Both ends of the moving block are slidably connected to the inside of the guide rail, and the output end of the electric push rod is fixedly connected to the top of the moving block.

[0010] As described above, one end of the adjusting rod is fixedly connected to a servo motor, and the top end of the adjusting block is slidably connected to the inside of the mounting bracket.

[0011] As described above, the top end of the electric push rod is fixedly connected to the inner top of the guide rail, and the grinder is located inside the moving block.

[0012] Compared with existing technologies, this rotating device for processing steel pipes has the following advantages:

[0013] I. This utility model, through its self-rotation mechanism, allows for the processing of other surfaces of the workpiece. The controller activates servo motor one, which drives rotating rod one to rotate. Rotating rod one drives gear one to rotate synchronously. Since gear one meshes with gear two, gear two rotates in the opposite direction, driving rotating rod two to rotate. Rotating rod two, through a sliding connection between a connecting block and a guide block, transmits rotational force to the clamping block, ultimately causing the clamped workpiece to rotate stably. This satisfies the rotational requirements during grinding. Furthermore, the clamping pad increases friction with the workpiece, preventing slippage and reducing damage to the workpiece surface during rotation.

[0014] II. This utility model, through its adjustable mechanism, allows for adjustments to the lateral processing position of the grinding machine. When this adjustment is needed, the controller activates servo motor three, which drives the adjusting rod to rotate. Since the adjusting rod and the adjusting block are threadedly connected, the rotation of the adjusting rod is converted into linear motion of the adjusting block. Consequently, the adjusting block drives the guide rail and the moving block to move synchronously with the adjusting block, thereby causing the grinding machine to move laterally as a whole, achieving precise positioning of the grinding position. After the lateral position is determined, the distance between the grinding machine and the surface of the workpiece needs to be adjusted to meet processing requirements. At this time, the controller activates the electric push rod, whose output end extends and retracts, causing the moving block to slide up and down along the track inside the guide rail, bringing the grinding machine closer to the surface of the workpiece. This allows for precise control of the lateral displacement, adapting to the processing requirements of different positions on the workpiece, and enabling full circumferential and full-length processing of the outer surface of the workpiece, meeting the needs of different specifications and processes.

[0015] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0017] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention;

[0018] Figure 3 This is a three-dimensional structural diagram of the self-rotating mechanism and its connecting parts of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the adjustment mechanism and its connecting parts of this utility model.

[0020] In the diagram: 1. Workbench; 2. Mounting bracket; 3. Fixing block; 4. Servo motor one; 5. Rotation mechanism; 501. Gear one; 502. Gear two; 503. Rotating rod one; 504. Rotating rod two; 505. Connecting block; 506. Bidirectional threaded rod; 507. Guide block; 6. Machining part; 7. Clamping rod; 8. Threaded block; 9. Adjustment mechanism; 901. Adjusting rod; 902. Adjusting block; 903. Guide rail; 904. Moving block; 905. Electric push rod; 10. Grinding machine; 11. Servo motor two; 12. Clamping block; 13. Clamping pad; 14. Servo motor three; 15. Support block; 16. Clamping block. Detailed Implementation

[0021] 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.

[0022] like Figure 1-4As shown, this utility model provides a technical solution: a self-rotating device for processing steel pipes, including a workbench 1 and a mounting frame 2. The top end of the workbench 1 is fixedly connected to the bottom end of the mounting frame 2, and two fixing blocks 3 are fixedly connected to the top end of the workbench 1. A servo motor 4 is provided on the outer side of the fixing block 3, and a self-rotating mechanism 5 is rotatably connected inside the fixing block 3. A processing part 6 is provided on the inner side of the self-rotating mechanism 5. A support block 15 is fixedly connected to the top end of the workbench 1, and a clamping block 16 is slidably connected to one side of the support block 15. A clamping rod 7 is rotatably connected to the top end of the clamping block 16, and a threaded block 8 is threadedly connected to the outer wall of the clamping rod 7. An adjustment mechanism 9 is rotatably connected to the inner side of the mounting frame 2, and a grinding machine 10 is provided on the inner side of the adjustment mechanism 9.

[0023] The workpiece 6 to be processed is placed on the worktable 1. One end of the workpiece 6 is supported by the inner side of the rotating mechanism 5, and the other end is supported by the support block 15. At this time, the clamping rod 7 is rotated. Since the outer wall of the clamping rod 7 is threadedly connected to the threaded block 8, rotating the clamping rod 7 will cause the clamping block 16 to move downward, pushing the clamping block 16 along the support block 15 close to the outer wall of the workpiece 6. Finally, the workpiece 6 is stably clamped between the rotating mechanism 5 and the clamping block 16 to prevent shaking during processing. This allows the clamping force to be adjusted according to the diameter of the workpiece 6, preventing the workpiece 6 from shifting during rotation or grinding. After clamping is completed, the controller is notified to start the servo motor 4, which drives the rotating mechanism. 5. Rotation causes the workpiece 6 to rotate at a constant speed around its own axis, providing a uniform processing surface for subsequent grinding. Finally, the adjustment mechanism 9 inside the mounting frame 2 is activated simultaneously. Through the lateral movement and longitudinal movement of the adjustment mechanism 9, the grinding machine 10 is precisely positioned to the grinding area of ​​the workpiece 6. After the position is confirmed, the controller is notified to start the grinding machine 10. In coordination with the rotation of the workpiece 6, the outer circular surface of the workpiece 6 is continuously and uniformly ground until the process requirements are met. The position of the grinding machine 10 can be adjusted along the lateral and longitudinal directions of the workpiece 6, enabling full circumferential and full-length processing of the outer circular surface of the workpiece 6 to meet the needs of different specifications and processes.

[0024] like Figure 1-3As shown, the self-rotating mechanism 5 includes a gear 1 501, a gear 2 502, a rotating rod 1 503, a rotating rod 2 504, a connecting block 505, a bidirectional threaded rod 506, and a guide block 507. Gear 1 501 meshes with gear 2 502, and the interiors of gear 1 501 and gear 2 502 are fixedly connected to the outer walls of rotating rod 1 503 and rotating rod 2 504, respectively. One end of rotating rod 2 504 is fixedly connected to one side of connecting block 505. The interiors of connecting block 505 are slidably connected to one side of two guide blocks 507, and the interiors of both guide blocks 507 are threadedly connected to the outer wall of bidirectional threaded rod 506. Both ends of rotating rod 1 503 are rotatably connected to the interiors of two fixed blocks 3, respectively. One end of bidirectional threaded rod 506 is fixedly connected to a servo motor 2 11. Two clamping blocks 12 are fixedly connected to the side of the two guide blocks 507 away from the connecting block 505, and the inner wall of the clamping block 12 is tightly attached to a clamping pad 13.

[0025] When machining other surfaces of workpiece 6, the controller starts servo motor 4, which drives rotating rod 503 to rotate. Rotating rod 503 drives gear 501 to rotate synchronously. Since gear 501 meshes with gear 502, gear 502 will rotate in the opposite direction and drive rotating rod 504 to rotate. Rotating rod 504 is slidably connected to guide block 507 through connecting block 505, transmitting rotational force to clamping block 12. Finally, it drives the clamped workpiece 6 to rotate stably, meeting the rotational requirements of workpiece 6 during grinding. In addition, clamping pad 13 increases the friction with workpiece 6, preventing slippage of workpiece 6 during rotation and reducing damage to the surface of workpiece 6.

[0026] like Figure 1 , Figure 2 and Figure 4 As shown, the adjustment mechanism 9 includes an adjustment rod 901, an adjustment block 902, a guide rail 903, a moving block 904, and an electric push rod 905. The outer wall of the adjustment rod 901 is threadedly connected to the inside of the adjustment block 902, and the bottom of the adjustment block 902 is fixedly connected to the top of the guide rail 903. Both ends of the moving block 904 are slidably connected to the inside of the guide rail 903. The output end of the electric push rod 905 is fixedly connected to the top of the moving block 904. A servo motor 14 is fixedly connected to one end of the adjustment rod 901. The top of the adjustment block 902 is slidably connected to the inside of the mounting bracket 2. The top of the electric push rod 905 is fixedly connected to the inner top of the guide rail 903. The grinder 10 is located inside the moving block 904.

[0027] When the lateral machining position of the grinding machine 10 needs to be adjusted, the servo motor 3 14 is started by the controller, which drives the adjusting rod 901 to rotate. Since the adjusting rod 901 and the adjusting block 902 are threadedly connected, the rotation of the adjusting rod 901 is converted into the linear motion of the adjusting block 902. In turn, the adjusting block 902 drives the guide rail 903 and the moving block 904 to move synchronously with the adjusting block 902, thereby driving the grinding machine 10 to move laterally as a whole, achieving precise positioning of the grinding position. After the lateral position is determined, the distance between the grinding machine 10 and the surface of the workpiece 6 needs to be adjusted to meet the processing requirements. At this time, the electric push rod 905 is started by the controller, and its output end extends and retracts, driving the moving block 904 to slide up and down along the track inside the guide rail 903, moving the grinding machine 10 closer to the surface of the workpiece 6. The lateral movement displacement can be precisely controlled to adapt to the processing requirements of different positions of the workpiece 6, and the processing of the outer circumference and length range of the workpiece 6 can be realized to meet the requirements of different specifications and processes.

[0028] Working principle: First, place one end of the workpiece 6 inside the two clamping blocks 12. Then, start the servo motor 11 via the controller, causing the servo motor 11 to drive the bidirectional threaded rod 506 to rotate. At this time, the bidirectional threaded rod 506 drives the two guide blocks 507 to move closer to each other, so that the clamping pad 13 inside the clamping block 12 tightly fits the workpiece 6, thereby completing the clamping work. Next, place the other end of the workpiece 6 on the opposite side of the support block 15 and the clamping block 16, and rotate the clamping rod 7 to make the clamping rod 7... The clamping block 16 moves downwards, clamping the workpiece 6. Next, when machining other surfaces of the workpiece 6, the controller starts the servo motor 4, causing it to drive the rotating rod 503 to rotate. The rotating rod 503 drives the gear 501 to rotate synchronously. Since gear 501 meshes with gear 502, gear 502 rotates in the opposite direction, driving the rotating rod 504 to rotate. The rotating rod 504 is slidably connected to the guide block 507 via the connecting block 505, thus distributing the rotational force... The rotation is transmitted to the clamping block 12, which ultimately drives the clamped workpiece 6 to rotate stably, meeting the rotation requirements of the workpiece 6 during grinding. Finally, when it is necessary to adjust the lateral processing position of the grinding machine 10, the servo motor 14 is started by the controller, which drives the adjusting rod 901 to rotate. Since the adjusting rod 901 and the adjusting block 902 are threadedly connected, the rotation of the adjusting rod 901 is converted into the linear motion of the adjusting block 902. In turn, the adjusting block 902 drives the guide rail 903 and the moving block 904 to move synchronously with the adjusting block 902, thereby driving the grinding machine 10 to move laterally as a whole, achieving precise positioning of the grinding position. After the lateral position is determined, the distance between the grinding machine 10 and the surface of the workpiece 6 needs to be adjusted to adapt to the processing requirements. At this time, the electric push rod 905 is started by the controller, and its output end extends and retracts, driving the moving block 904 to slide up and down along the track inside the guide rail 903, driving the grinding machine 10 closer to the surface of the workpiece 6. The lateral movement displacement can be precisely controlled to adapt to the processing requirements of different positions of the workpiece 6.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-rotating device for processing steel pipes, comprising a worktable (1) and a mounting frame (2), characterized in that: The top end of the workbench (1) is fixedly connected with the bottom end of the mounting frame (2), and the top end of the workbench (1) is fixedly connected with two fixed blocks (3), respectively.

2. A kind of self-rotating device for steel pipe processing according to claim 1, characterized in that: The self-rotation mechanism (5) comprises a gear one (501), a gear two (502), a rotating rod one (503), a rotating rod two (504), a connecting block (505), a bidirectional threaded rod (506) and a guide block (507), the gear one (501) is engaged with the gear two (502), and the inner parts of the gear one (501) and the gear two (502) are fixedly connected with the outer walls of the rotating rod one (503) and the rotating rod two (504), respectively.

3. A kind of self-rotating device for steel pipe processing according to claim 2, characterized in that: The two ends of the rotating rod one (503) are rotatably connected with the inner parts of the two fixed blocks (3), respectively.

4. A kind of self-rotating device for steel pipe processing according to claim 3, characterized in that: One end of the bidirectional threaded rod (506) is fixedly connected with a servo motor two (11).

5. A kind of self-rotating device for steel pipe processing according to claim 1, characterized in that: The two guide blocks (507) are fixedly connected with two clamping blocks (12) on the sides away from the connecting block (505), and the inner wall of the clamping block (12) is tightly attached with a clamping pad (13).

6. A kind of self-rotating device for steel pipe processing according to claim 5, characterized in that: The adjusting mechanism (9) comprises an adjusting rod (901), an adjusting block (902), a guide rail (903), a moving block (904) and an electric push rod (905), the outer wall of the adjusting rod (901) is threadedly connected with the inner part of the adjusting block (902), and the bottom of the adjusting block (902) is fixedly connected with the top of the guide rail (903), the two ends of the moving block (904) are slidably connected with the inner parts of the guide rail (903), and the output end of the electric push rod (905) is fixedly connected with the top end of the moving block (904).

7. A kind of self-rotating device for steel pipe processing according to claim 6, characterized in that: One end of the adjusting rod (901) is fixedly connected with a servo motor three (14), and the top end of the adjusting block (902) is slidably connected with the inner part of the mounting frame (2). The top end of the electric push rod (905) is fixedly connected with the inner top part of the guide rail (903), and the grinding machine (10) is located on the inner side of the moving block (904).