Clamp for machining steel pipes

By using a motor-driven sprocket transmission system and a spring-loaded clamping block design, the problem of manually adjusting the gripper position in existing steel pipe processing clamps has been solved. This enables quick assembly and disassembly of the clamping plates and precise clamping, improving the equipment's working efficiency and processing accuracy.

CN224373401UActive Publication Date: 2026-06-19SICHUAN SHIFANG WELDED TUBE FACTORY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN SHIFANG WELDED TUBE FACTORY
Filing Date
2025-07-09
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing steel pipe processing fixtures require manual adjustment of the gripper position or replacement of gripper components when processing steel pipes of different diameters, which leads to increased non-processing time and reduced equipment utilization, and is also susceptible to human error affecting processing accuracy.

Method used

The system employs a motor-driven sprocket transmission system, which automatically adjusts the clamping plates through a rotating disc and sliding groove structure. Combined with a spring and insert block design, it enables quick assembly and disassembly of the clamping plates, adapting to the clamping of steel pipes of different diameters.

Benefits of technology

It improves the equipment's working efficiency and processing accuracy, reduces non-processing time, and enhances the equipment's rapid changeover capability and positioning accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to steel pipe processing technical field discloses a clamp for steel pipe processing, including base, the base upper surface fixedly connected with the fixed frame, the fixed frame between fixedly connected with the connecting column, the fixed frame side wall is provided with clamping subassembly, the base upper surface fixedly connected with the fixed plate, the clamping subassembly includes the clamping plate, the clamping plate side wall sets up the fixed frame side wall, the fixed frame side wall fixedly connected with the slide rail, the slide rail side wall slidingly connected with the sliding block, the sliding block side wall fixedly connected with the mounting sleeve, in the utility model, through motor drive sprocket no.
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Description

Technical Field

[0001] This utility model relates to the field of steel pipe processing technology, and in particular to a fixture for steel pipe processing. Background Technology

[0002] In the field of steel pipe processing, fixtures, as key devices for fixing and positioning workpieces, directly affect processing accuracy, production efficiency, and manufacturing costs. Traditional steel pipe processing fixtures typically employ a single positioning datum and fixed jaw design, making it difficult to adapt to diverse pipe diameter specifications and complex processing requirements. With the increasing level of industrial automation, higher demands are placed on the quick changeover capability, positioning accuracy, and versatility of fixtures. Developing a fixture capable of efficiently clamping steel pipes of different sizes has become a key direction for technological upgrading in the industry.

[0003] In the existing technology, most steel pipe processing fixtures commonly found on the market adopt manual screw type or hydraulic structure. Manual screw type fixtures clamp the steel pipe by manually rotating the screw, which moves the clamping plate; hydraulic type fixtures use the pressure generated by the hydraulic system to push the piston to move the clamping plate and complete the clamping action.

[0004] When processing steel pipes of different diameters, existing steel pipe processing fixtures require operators to manually adjust the position of the grippers or replace the entire gripper assembly. This not only increases the proportion of non-processing time and reduces equipment utilization, but also easily leads to improper installation of the grippers due to human error, affecting processing accuracy. Therefore, a new steel pipe processing fixture is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a steel pipe processing fixture, which aims to improve the problem that in the prior art, when steel pipe processing fixtures need to process steel pipes of different diameters, operators need to manually adjust the position of the clamps or replace the entire clamp assembly.

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

[0007] A steel pipe processing fixture includes a base, a fixing frame fixedly connected to the upper surface of the base, a connecting column fixedly connected between the fixing frames, a clamping assembly provided on the side wall of the fixing frame, and a fixing plate fixedly connected to the upper surface of the base.

[0008] The clamping assembly includes a clamping plate, the sidewall of which is disposed on the sidewall of the fixing frame. A slide rail is fixedly connected to the sidewall of the fixing frame, a slider is slidably connected to the sidewall of the slide rail, and a mounting sleeve is fixedly connected to the sidewall of the slider. A connecting block is fixedly connected to the sidewall of the clamping plate, and the sidewall of the connecting block is slidably connected inside the mounting sleeve. A fixing rod is fixedly connected to the sidewall of the mounting sleeve. A rotating disk is rotatably connected inside one side of the fixing frame, and a sliding groove is formed inside the rotating disk. The sidewall of the fixing rod is slidably connected inside the sliding groove. A driving assembly is disposed on the upper surface of the base, and a fixing assembly is disposed on the sidewall of the mounting sleeve.

[0009] As a further description of the above technical solution:

[0010] The fixing component includes a plug, the sidewall of which is slidably connected inside the mounting sleeve.

[0011] As a further description of the above technical solution:

[0012] The drive assembly includes a first sprocket and a second sprocket. One side wall of the first sprocket is fixedly connected to the side wall of the rotating disk, and the side wall of the second sprocket is rotatably connected to the side wall of the fixed plate. A motor is fixedly connected to the side wall of the fixed plate, and the output end of the motor is fixedly connected inside the second sprocket. A chain is provided between the first sprocket and the second sprocket.

[0013] As a further description of the above technical solution:

[0014] A connecting sleeve is fixedly connected to the side wall of the mounting sleeve, and a connecting rod is slidably connected inside the connecting sleeve.

[0015] As a further description of the above technical solution:

[0016] The connecting rod is rotatably connected to a pull ring, and the side wall of the insert block is fixedly connected to one end of the connecting rod.

[0017] As a further description of the above technical solution:

[0018] The connecting block has a fixing hole inside, and the side wall of the insert block is slidably connected to the fixing hole.

[0019] As a further description of the above technical solution:

[0020] A fixing ring is fixedly connected to the side wall of the connecting rod, and the side wall of the fixing ring is slidably connected inside the connecting sleeve.

[0021] As a further description of the above technical solution:

[0022] A spring is fitted on the side wall of the connecting rod. One end of the spring is fixedly connected inside the connecting sleeve, and the other end of the spring is fixedly connected to the side wall of the fixing ring.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the motor drives the second sprocket to rotate, causing the first sprocket to rotate synchronously. This causes the rotating disk to rotate inside the fixed frame. The sliding groove inside the fixed frame forces the fixed rod to slide along the groove. The fixed rod drives the mounting sleeve to move. The mounting sleeve slides on the slide rail via a slider. The movement of the mounting sleeve pushes the clamping plate closer to or away from the steel pipe through the connecting block, achieving the effect of clamping steel pipes of different sizes. This solves the problem that some steel pipe processing fixtures require operators to manually adjust the position of the clamps or replace the entire clamping assembly when processing steel pipes of different diameters, which increases the proportion of non-processing time and reduces equipment utilization. The above structure improves the working efficiency of the equipment.

[0025] 2. In this utility model, when it is necessary to replace the clamping plate, by pulling the pull ring, the connecting rod and the insert block are moved outward, the spring is compressed, the insert block is disengaged from the fixing hole, the locking of the connecting block is released, the connecting block is pulled out along the axial direction of the mounting sleeve, and the clamping plate is disassembled, achieving the effect of quick disassembly and assembly of the clamping plate. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a steel pipe processing fixture proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the clamping assembly of a steel pipe processing fixture proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the fixing frame of a steel pipe processing fixture proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the mounting sleeve of a steel pipe processing fixture proposed in this utility model;

[0030] Figure 5 This is a schematic diagram of the fixing component of a steel pipe processing fixture proposed in this utility model.

[0031] Legend:

[0032] 1. Base; 2. Fixing frame; 3. Connecting column; 4. Slide rail; 5. Mounting sleeve; 6. Slider; 7. Connecting block; 8. Clamping plate; 9. Fixing rod; 10. Rotating disk; 11. Slide groove; 12. Sprocket one; 13. Fixing plate; 14. Sprocket two; 15. Chain; 16. Motor; 17. Fixing hole; 18. Connecting sleeve; 19. Connecting rod; 20. Pull ring; 21. Insert block; 22. Fixing ring; 23. Spring. Detailed Implementation

[0033] 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.

[0034] Reference Figures 1-3 An embodiment of this utility model is provided: a steel pipe processing fixture, including a base 1, the base 1 is used to support the entire fixture device, a fixed frame 2 is fixedly connected to the upper surface of the base 1, a connecting column 3 is fixedly connected between the fixed frames 2, the connecting column 3 is used to enhance the connection strength and stability of the fixed frames 2, a clamping component is provided on the side wall of the fixed frame 2, and a fixed plate 13 is fixedly connected to the upper surface of the base 1.

[0035] The clamping assembly includes a clamping plate 8, which is used to directly contact and clamp the steel pipe. By contacting the surface of the steel pipe, the steel pipe is fixed. The sidewall of the clamping plate 8 is set on the sidewall of the fixing frame 2. A slide rail 4 is fixedly connected to the sidewall of the fixing frame 2. A slider 6 is slidably connected to the sidewall of the slide rail 4. The slider 6 cooperates with the slide rail 4 to perform linear sliding motion. An mounting sleeve 5 is fixedly connected to the sidewall of the slider 6. A connecting block 7 is fixedly connected to the sidewall of the clamping plate 8. The sidewall of the connecting block 7 is slidably connected inside the mounting sleeve 5. A fixing rod 9 is fixedly connected to the sidewall of the mounting sleeve 5. A rotating disk 10 is rotatably connected inside one side of the fixing frame 2. A sliding groove 11 is opened inside the rotating disk 10. The sidewall of the fixing rod 9 is slidably connected inside the sliding groove 11. The sliding groove 11 cooperates with the fixing rod 9 to perform linear sliding motion. The motion achieves the effect of converting the circular motion of the rotating disk 10 into the linear motion of the fixed rod 9. The upper surface of the base 1 is provided with a drive component, and the side wall of the mounting sleeve 5 is provided with a fixing component. The drive component includes a first sprocket 12 and a second sprocket 14. The side wall of the first sprocket 12 is fixedly connected to the side wall of the rotating disk 10, and the side wall of the second sprocket 14 is rotatably connected to the side wall of the fixing plate 13. The side wall of the fixing plate 13 is fixedly connected to a motor 16, and the output end of the motor 16 is fixedly connected to the inside of the second sprocket 14. A chain 15 is provided between the first sprocket 12 and the second sprocket 14. The chain 15 is used to transmit power. The first sprocket 12 and the second sprocket 14 cooperate with the chain 15 to perform transmission motion, achieving the effect of transmitting the power of the motor 16 to the rotating disk 10.

[0036] Reference Figures 4-5The fixing component includes a plug 21, whose side wall is slidably connected to the inside of a mounting sleeve 5. The mounting sleeve 5 provides a sliding track for the plug 21, ensuring that the plug 21 moves in a straight line. A connecting sleeve 18 is fixedly connected to the side wall of the mounting sleeve 5. A connecting rod 19 is slidably connected inside the connecting sleeve 18. The connecting rod 19 cooperates with the connecting sleeve 18 to perform linear sliding movement. A pull ring 20 is rotatably connected inside the connecting rod 19. The pull ring 20 is used to provide an operating force point, making it convenient for the operator to pull the connecting rod 19 and improving the ease of operation. The side wall of the plug 21 is fixedly connected to one end of the connecting rod 19. The connecting rod 19 transmits the pulling force to the plug 21 through its fixed connection with the plug 21. The position of the insert 21 is adjusted. The connecting block 7 has a fixing hole 17 inside. The side wall of the insert 21 is slidably connected to the fixing hole 17. The fixing hole 17 cooperates with the insert 21 to insert and release, so as to lock or unlock the connecting block 7 and the mounting sleeve 5. The side wall of the connecting rod 19 is fixedly connected to the fixing ring 22. The side wall of the fixing ring 22 is slidably connected to the connecting sleeve 18. The side wall of the connecting rod 19 is fitted with a spring 23. The spring 23 is used to make the insert 21 automatically reset and insert into the fixing hole 17 after the tension is removed, so as to achieve the effect of automatic locking. One end of the spring 23 is fixedly connected to the inside of the connecting sleeve 18, and the other end of the spring 23 is fixedly connected to the side wall of the fixing ring 22.

[0037] Working Principle: When using this equipment to clamp steel pipes, the steel pipe is first passed through the fixing frame 2. Then, the motor 16 is started, driving the second sprocket 14 to rotate. The second sprocket 14 transmits power to the first sprocket 12 through the chain 15, causing the first sprocket 12 to rotate synchronously. Since the first sprocket 12 is fixed to the side wall of the rotating disk 10, the rotating disk 10 rotates inside the fixing frame 2. When the rotating disk 10 rotates, the sliding groove 11 inside it forces the fixing rod 9 to slide along the sliding groove 11. The fixing rod 9 drives the mounting sleeve 5 to move, and the mounting sleeve 5 slides on the slide rail 4 through the slider 6. The movement of the mounting sleeve 5 pushes the clamping plate 8 closer to or away from the steel pipe through the connecting block 7, realizing the clamping action. The drive assembly provides power to rotate the steel pipe. The rotating disc 10 drives the clamping plate 8 to clamp the steel pipe, adapting to steel pipes of different diameters and ultimately achieving stable clamping of the steel pipe during processing. When the clamping plate 8 needs to be replaced, the pull ring 20 is pulled to drive the connecting rod 19 to slide inside the connecting sleeve 18, and the spring 23 is squeezed by the fixing ring 22, causing the insert 21 to exit from the fixing hole 17 of the connecting block 7. At this time, the clamping plate 8 can be removed for replacement. When installation is required, the connecting block 7 is inserted into the installation sleeve 5, and then the pull ring 20 is released. The elastic force of the spring 23 pushes the fixing ring 22, causing the connecting rod 19 to reset, and the insert 21 is reinserted into the fixing hole 17, locking the connecting block 7 and the installation sleeve 5 to ensure that the position of the clamping plate 8 is fixed.

[0038] 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 clamp for machining a steel pipe comprising a base (1), characterized in that: A fixing frame (2) is fixedly connected to the upper surface of the base (1), and a connecting column (3) is fixedly connected between the fixing frames (2). A clamping assembly is provided on the side wall of the fixing frame (2), and a fixing plate (13) is fixedly connected to the upper surface of the base (1). The clamping assembly includes a clamping plate (8), the side wall of the clamping plate (8) is disposed on the side wall of the fixing frame (2), the side wall of the fixing frame (2) is fixedly connected to a slide rail (4), the side wall of the slide rail (4) is slidably connected to a slider (6), the side wall of the slider (6) is fixedly connected to an mounting sleeve (5), the side wall of the clamping plate (8) is fixedly connected to a connecting block (7), the side wall of the connecting block (7) is slidably connected inside the mounting sleeve (5), the side wall of the mounting sleeve (5) is fixedly connected to a fixing rod (9), a rotating disk (10) is rotatably connected inside one side of the fixing frame (2), the rotating disk (10) has a groove (11) inside, the side wall of the fixing rod (9) is slidably connected inside the groove (11), the upper surface of the base (1) is provided with a driving assembly, and the side wall of the mounting sleeve (5) is provided with a fixing assembly.

2. The steel pipe processing fixture according to claim 1, characterized in that: The fixing component includes a plug (21), the sidewall of which is slidably connected inside the mounting sleeve (5).

3. The steel pipe processing fixture according to claim 1, characterized in that: The drive assembly includes a first sprocket (12) and a second sprocket (14). The side wall of the first sprocket (12) is fixedly connected to the side wall of the rotating disk (10). The side wall of the second sprocket (14) is rotatably connected to the side wall of the fixed plate (13). A motor (16) is fixedly connected to the side wall of the fixed plate (13). The output end of the motor (16) is fixedly connected inside the second sprocket (14). A chain (15) is provided between the first sprocket (12) and the second sprocket (14).

4. A steel pipe processing fixture according to claim 2, characterized in that: The mounting sleeve (5) is fixedly connected to a connecting sleeve (18) on its side wall, and a connecting rod (19) is slidably connected inside the connecting sleeve (18).

5. A steel pipe processing fixture according to claim 4, characterized in that: The connecting rod (19) is rotatably connected to a pull ring (20), and the side wall of the insert (21) is fixedly connected to one end of the connecting rod (19).

6. A steel pipe processing fixture according to claim 5, characterized in that: The connecting block (7) has a fixing hole (17) inside, and the side wall of the insert (21) is slidably connected to the fixing hole (17).

7. A steel pipe processing fixture according to claim 6, characterized in that: The side wall of the connecting rod (19) is fixedly connected to a fixing ring (22), and the side wall of the fixing ring (22) is slidably connected inside the connecting sleeve (18).

8. A steel pipe processing fixture according to claim 7, characterized in that: A spring (23) is sleeved on the side wall of the connecting rod (19). One end of the spring (23) is fixedly connected inside the connecting sleeve (18), and the other end of the spring (23) is fixedly connected to the side wall of the fixing ring (22).