A spiral steel pipe production and processing clamping device

Abstract

This utility model provides a clamping device for spiral steel pipe production and processing, relating to the field of steel pipe fixing technology. The clamping mechanism includes a clamping ring fitted onto one end of the steel pipe body via an inner ring, a rotating component for controlling the rotation of the clamping ring, four clamping rods arranged in a circumferential array and rotatably mounted on the end face of the clamping ring, with two rods in each group, and a control component for controlling the four clamping rods to move closer together to clamp and fix the steel pipe body. The two clamping rods in each group are parallel to each other. The clamping rods rotate around an axis. The end of the steel pipe body passes through the inner ring of the clamping ring. The control component drives the four clamping rods to move closer together, clamping and fixing the steel pipe body in a centered position. The rotating component drives the clamping ring to rotate and the clamping rods to rotate around the axis, allowing the steel pipe body to rotate around the axial direction and move axially. This utility model can stably clamp the spiral steel pipe body and also has the multiple functions of allowing the steel pipe to rotate flexibly and move freely.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe fixing technology, specifically a clamping device for spiral steel pipe production and processing. Background Technology

[0002] In the production and processing of spiral steel pipes, effectively clamping and precisely positioning the steel pipe body, and ensuring that it can rotate flexibly and move smoothly according to production needs, is a key link to ensure smooth production and product quality.

[0003] However, existing traditional clamping devices have many significant limitations:

[0004] 1. Existing traditional clamping devices lack sufficient stability when clamping steel pipes. In the actual production process of spiral welded steel pipes, the pipes are often subjected to various external forces or processed at high speeds. Under these conditions, traditional clamping devices are prone to problems such as loosening and displacement of the steel pipes. Unstable clamping conditions directly lead to a significant decrease in processing accuracy, and the produced spiral welded steel pipes may fail to meet quality standards. More seriously, such loosening and displacement can also cause safety accidents, posing a serious threat to the lives of operators and the safety of equipment.

[0005] 2. Existing traditional clamping devices have limited functionality, only capable of basic clamping operations, and cannot meet the diverse needs of spiral welded steel pipe production and processing. Specifically, they cannot allow the steel pipe to rotate flexibly around its axis, nor can they allow it to move freely along its axis. In the production of spiral welded steel pipes, different processing techniques have different requirements for the movement of the steel pipe. For example, when performing spiral weld seam welding, the steel pipe needs to be able to rotate at a uniform speed around its axis; while when performing cutting or surface treatment of certain lengths, the steel pipe needs to be able to move accurately along its axis. The limitations of traditional clamping devices greatly restrict the diversity and efficiency of spiral welded steel pipe production and processing, making it difficult to adapt to the needs of complex production processes, and hindering enterprises from improving production efficiency and product competitiveness. Utility Model Content

[0006] To address the aforementioned issues, this application provides a clamping device for spiral steel pipe production and processing.

[0007] To achieve the above objectives, this application provides the following technical solution: a clamping device for spiral steel pipe production and processing, comprising a clamping mechanism for clamping and positioning the steel pipe body, the clamping mechanism comprising a clamping ring sleeved on one end of the steel pipe body via an inner ring, a rotating component for controlling the rotation of the clamping ring, four clamping rods arranged in a circumferential array and rotatably disposed on the end face of the clamping ring, with two rods in each group, and a control component for controlling the four clamping rods to move closer to each other to clamp and fix the steel pipe body; the two clamping rods in each group are parallel to each other; the clamping rods rotate around an axis;

[0008] When clamping the steel pipe body, the end of the steel pipe body is inserted into the inner ring of the clamping ring. The control component drives the four clamping rods to move closer to each other, clamping and fixing the steel pipe body in the center. The rotating component drives the clamping ring to rotate and the clamping rods to rotate around the axis, so that the steel pipe body can rotate around the axis and move along the axis.

[0009] Preferably, the clamping ring end face has four sliding grooves arranged in a circular array with the length direction passing through the center position. The control component includes four sliding rods that slide through the sliding grooves, a rotating block fixedly set at the bottom end face of the sliding rod, an adjusting ring that passes through the clamping ring, and a control component that controls the rotation of the adjusting ring. The adjusting ring end face has four limiting grooves that are slidably sleeved on different rotating blocks. The limiting grooves have an arc structure in the length direction, and their two ends are close to the outer ring and inner ring of the adjusting ring, respectively.

[0010] Preferably, the control component includes a driven rack fixedly disposed on the outer ring surface of the clamping ring, an adjusting block slidably disposed on the outer ring of the clamping ring, an adjusting rack disposed in the adjusting block and meshing with the driven rack, and a control screw with one end threaded through the adjusting rack along the length direction and the other end connected to the motor.

[0011] Preferably, the rotating assembly includes a rotating ring rotatably disposed on the end face of the clamping ring away from the clamping rod, a rotating rack fixedly disposed on the outer ring surface of the rotating ring, and a drive gear driven by a motor and meshing with the rotating rack; an adjusting block is fixedly connected to the end face of the rotating ring.

[0012] Preferably, the clamping mechanism further includes a moving component for controlling the axial movement of the steel pipe body. The moving component includes a slide rail arranged parallel to the axis of the clamping ring, a sliding screw threaded through a groove opened along the length of the slide rail and driven by a motor, a slider threaded through the groove and connected to the sliding screw, and a fixing member arranged on the slider to fix one end of the steel pipe body. A sliding rod movably passing through the slider is arranged parallel to the sliding screw in the groove.

[0013] Preferably, the fixing component includes a rotating disk disposed above the slider and parallel to the clamping ring, a limiting ring rotatably sleeved on the rotating disk and connected to the slider, a limiting rod passing through a positioning groove on the end face of the rotating disk, two positioning blocks symmetrically slidably sleeved on the limiting rod, a limiting spring sleeved on the limiting rod and connected to different positioning blocks at both ends, a lifting block movably passing through the rotating disk in the vertical direction and whose symmetrical inclined surfaces respectively abut against the two positioning blocks, a positioning rod disposed on the rotating disk and respectively connected to different positioning blocks, and a fixing structure for controlling the lifting of the lifting block.

[0014] The beneficial effects of this utility model are:

[0015] 1. When clamping the steel pipe body, the end of the steel pipe passes through the inner ring of the clamping ring. The control component precisely drives the four clamping rods to move closer to each other, achieving centered clamping and fixing of the steel pipe. This design can effectively resist various external forces on the steel pipe during production and the centrifugal force generated by high-speed rotation, greatly reducing the occurrence of loosening and displacement of the steel pipe, and ensuring that the steel pipe remains stable throughout the processing.

[0016] 2. The steel pipe body is centrally clamped and fixed by four clamping rods, providing a solid foundation for high-precision machining. During the processing of spiral steel pipes, including spiral weld seam welding, cutting, and surface treatment, a stable steel pipe condition ensures accurate relative positioning between the machining tools or welding equipment and the steel pipe, significantly improving machining accuracy. This results in spiral steel pipes that better meet quality standards, reducing defective and scrap products and lowering production costs.

[0017] 3. By using the clamping rods to rotate and the rotating assembly, the steel pipe body can move axially while being clamped and fixed by four clamping rods. The axial movement of the steel pipe body can be controlled by the subsequent fixing structure. The rotating assembly drives the steel pipe body to rotate around the axis, allowing the steel pipe to rotate flexibly or move axially, which can meet the needs of various complex processes in the production of spiral steel pipes. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a simplified structural diagram of the spiral steel pipe production and processing clamping device proposed in this utility model.

[0020] Figure 2 This is a schematic diagram of the back structure of the spiral steel pipe production and processing clamping device proposed in this utility model.

[0021] Figure 3 This is a schematic diagram of the control component structure of this utility model.

[0022] Figure 4 This is a schematic diagram of the fastener structure of this utility model.

[0023] In the diagram: 1. Fixed base; 2. Clamping ring; 3. Sliding groove; 4. Sliding rod; 5. Clamping rod; 6. Adjusting block; 7. Rotating ring; 8. Steel pipe body; 9. Slide rail; 10. Sliding groove; 11. Sliding screw; 12. Sliding rod; 13. Sliding block; 14. Rotating disk; 15. Positioning groove; 16. Limiting rod; 17. Adjusting screw; 18. Rotating rack; 19. Drive gear; 20. Adjusting ring; 21. Limiting groove; 22. Adjusting rack; 23. Control screw; 24. Limiting ring; 25. Lifting block; 26. Positioning block; 27. Limiting spring; 28. Positioning rod. Detailed Implementation

[0024] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are only preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the embodiments without creative effort are all within the protection scope of this utility model.

[0025] Example 1: Reference Figures 1-4 The spiral steel pipe production and processing clamping device shown includes a clamping mechanism for clamping and positioning the steel pipe body 8. The clamping mechanism includes a clamping ring 2 sleeved on one end of the steel pipe body 8, a rotating component for controlling the rotation of the clamping ring 2, four clamping rods 5 arranged in a circumferential array and rotatably disposed on the end face of the clamping ring 2, with two rods in each group facing each other, and a control component for controlling the four clamping rods 5 to move closer to each other and clamp and fix the steel pipe body 8; the two clamping rods 5 in each group are parallel to each other; the clamping rods 5 rotate around an axis;

[0026] When clamping the steel pipe body 8, the end of the steel pipe body 8 passes through the inner ring of the clamping ring 2. The control component drives the four clamping rods 5 to move closer to each other, clamping and fixing the steel pipe body 8 in the center. The rotating component drives the clamping ring 2 to rotate and the clamping rods 5 to rotate around the axis, so that the steel pipe body 8 can rotate around the axis and move along the axis.

[0027] In this embodiment, when the steel pipe body 8 is clamped and fixed, the end of the steel pipe body 8 is inserted into the inner ring of the clamping ring 2. At this time, the control component drives the four clamping rods 5 to move closer to each other, clamping and fixing the steel pipe body 8 in the center within the inner ring of the clamping ring 2. This ensures the stability of the steel pipe body 8 and prevents it from shifting during subsequent processing. It provides a stable processing basis for subsequent processing operations, ensures the accuracy of the processing of the steel pipe body 8, and improves the processing precision of the steel pipe body.

[0028] In this embodiment, when the rotating assembly drives the clamping ring 2 to rotate, it can also drive the steel pipe body 8 to rotate. Furthermore, the clamping rods 5 can rotate around their own axis, allowing the steel pipe body 8 to move axially while being clamped and fixed by the four clamping rods 5. In processes such as spiral welding, the steel pipe body 8 needs to rotate at a specific speed and direction, and simultaneously move axially to complete processing at different positions. This device ensures the stability of the steel pipe body 8 during rotation and movement, reduces processing errors caused by shaking or jamming, and further improves processing accuracy.

[0029] It is understandable that the four clamping rods 5 can be controlled to move closer to each other in various ways. This embodiment provides the following solution:

[0030] like Figures 1-3 As shown, the clamping ring 2 has four sliding grooves 3 arranged in a circular array on its end face, with the length direction passing through the center of the circle. The control component includes four sliding rods 4 that slide through the sliding grooves 3, a rotating block fixedly set on the bottom end face of the sliding rods 4, an adjusting ring 20 that passes through the clamping ring 2, and a control component that controls the rotation of the adjusting ring 20. The adjusting ring 20 has four limiting grooves 21 that are slidably sleeved on different rotating blocks on its end face. The limiting grooves 21 have an arc structure in the length direction, and their two ends are close to the outer ring and inner ring of the adjusting ring 20, respectively.

[0031] In this embodiment, when the steel pipe body 8 is inserted into the inner ring of the clamping ring 2, the adjusting ring 20 is driven to rotate around its own axis by the control component. Since the sliding rod 4 slides through the sliding groove 3 in the length direction through the center position, and the rotating block located in the limiting groove 21 slides at this time, it drives the rotating block to slide in the inner ring direction, thereby driving the sliding rod 4 to slide in the inner ring direction. This can drive the clamping rod 5 connected to the sliding rod 4 to move synchronously. By controlling the four clamping rods 5 to move closer to each other, the steel pipe body 8 located in the inner ring of the clamping ring 2 can be centrally and stably clamped and fixed.

[0032] In this embodiment, the length direction of the clamping rod 5 is parallel to the end face of the adjusting ring 20 and the length direction is perpendicular to the axis of the steel pipe body 8. The clamping rod 5 is connected to the sliding rod 4 through the connecting frame.

[0033] It is understandable that the control ring 20 can be rotated around the axial direction in various ways. This embodiment provides the following solution:

[0034] like Figure 3 As shown, the control components include a driven rack fixedly mounted on the outer ring surface of the clamping ring 2, an adjusting block 6 slidably mounted on the outer ring of the clamping ring 2, an adjusting rack 22 mounted inside the adjusting block 6 and meshing with the driven rack, and a control screw 23 with one end threaded through the adjusting rack 22 along the length direction and the other end connected to the motor.

[0035] In this embodiment, when the steel pipe body 8 is inserted into the inner ring of the clamping ring 2, the motor drives the control screw 23 to rotate, which in turn drives the adjusting rack 22, which is threadedly connected to the control screw 23, to move along the length direction. The driven rack that meshes with the adjusting rack 22 moves, which drives the adjusting ring 20 to rotate, thereby controlling the four clamping rods 5 to move closer to each other synchronously, and to clamp and fix the steel pipe body 8 in a stable and centered manner.

[0036] This embodiment includes a limiting structure that restricts the movement of the adjusting rack 22 in the length direction, ensuring that the adjusting rack 22 moves along the length direction when the control screw 23 rotates.

[0037] Example 2: Regarding the control of the clamping ring 2 to drive the steel pipe body 8 to rotate axially in Example 1, this example provides the following solution.

[0038] like Figure 1 and Figure 2 As shown, the rotating assembly includes a rotating ring 7 rotatably disposed on the end face of the clamping ring 2 away from the clamping rod 5, a rotating rack 18 fixedly disposed on the outer ring surface of the rotating ring 7, and a drive gear 19 driven by a motor and meshing with the rotating rack 18; an adjusting block 6 is fixedly connected to the end face of the rotating ring 7.

[0039] In this embodiment, a fixed seat 1 is slidably provided on the side of the rotating ring 7 to ensure that the rotating ring 7 can rotate around the axis on the fixed seat 1. After the steel pipe body 8 is clamped and fixed on the clamping ring 2 by four clamping rods 5, when it is necessary to control the rotation of the steel pipe body 8, the drive gear 19 is rotated by the motor control. The drive gear 19 meshes with the rotating rack 18, which drives the rotating ring 7 to rotate around the axis, thereby driving the fixed steel pipe body 8 to rotate around the axis, so as to facilitate the subsequent processing of the steel pipe body 8 and improve the flexibility of the steel pipe body 8 after it is fixed.

[0040] Example 3: Regarding the control of the steel pipe body 8 to move axially in Example 1, this example provides the following solution.

[0041] like Figure 1 and Figure 2 As shown, the clamping mechanism also includes a moving component for controlling the axial movement of the steel pipe body 8. The moving component includes a slide rail 9 arranged parallel to the axis of the clamping ring 2, a sliding screw 11 passing through a slide groove 10 opened along the length direction of the slide rail 9 and driven by a motor, a slider 13 passing through the slide groove 10 and threadedly connected to the sliding screw 11, and a fixing member arranged on the slider 13 to fix one end of the steel pipe body 8. A slide rod 12 movably passing through the slider 13 is arranged parallel to the sliding screw 11 in the slide groove 10.

[0042] In this embodiment, one end is clamped and fixed by four clamping rods 5, and the other end is fixed by a fixing member. When it is necessary to control the steel pipe body 8 to move axially, the sliding screw 11 is rotated by the motor, which can drive the slider 13 to slide in the slide groove 10, so as to realize the axial movement of the steel pipe body 8 by the fixing member.

[0043] like Figure 1 and Figure 4 As shown, the fixing components include a rotating disk 14 positioned above the slider 13 and parallel to the clamping ring 2; a limiting ring 24 rotatably sleeved on the rotating disk 14 and connected to the slider 13; a limiting rod 16 passing through a positioning groove 15 on the end face of the rotating disk 14; two positioning blocks 26 symmetrically slidably sleeved on the rods of the limiting rod 16; a limiting spring 27 sleeved on the rods of the limiting rod 16 and connected to different positioning blocks 26 at both ends; a lifting block 25 movably passing through the rotating disk 14 in the vertical direction and symmetrically inclined to the two positioning blocks 26 respectively; a positioning rod 28 positioned on the rotating disk 14 and connected to different positioning blocks 26 respectively; and a fixing structure for controlling the lifting of the lifting block 25. The fixing structure adopts an adjusting screw 17 that is threaded vertically through the rotating disk 14 and rotatably connected to the lifting block 25 at the bottom. The two inclined surfaces of the lifting block 25 are close to each other from top to bottom.

[0044] In this embodiment, when the end of the steel pipe body 8 is fixed on the rotating disk 14, the opening at the end of the steel pipe body 8 is fitted onto the two positioning rods 28 set on the rotating disk 14. By rotating the adjusting screw 17, the lifting block 25 can be controlled to move up and down in the vertical direction. Thus, under the pushing action of the two inclined surfaces of the lifting block 25, the two positioning blocks 26 are pushed away from each other, that is, the two positioning rods 28 are driven away from each other, and the inner tube of the steel pipe body 8 is brought into contact, thereby achieving quick fixation of the end of the steel pipe body 8.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A clamping device for spiral steel pipe production and processing, comprising a clamping mechanism for clamping and positioning the steel pipe body (8), characterized in that, The clamping mechanism includes a clamping ring (2) fitted onto one end of the steel pipe body (8) via an inner ring, a rotating component for controlling the rotation of the clamping ring (2), four clamping rods (5) arranged in a circular array and rotated on the end face of the clamping ring (2) in pairs, and a control component for controlling the four clamping rods (5) to move closer to each other and clamp and fix the steel pipe body (8); the two clamping rods (5) in each pair are parallel to each other; the clamping rods (5) rotate around the axis; When clamping the steel pipe body (8), the end of the steel pipe body (8) is inserted into the inner ring of the clamping ring (2). The control component drives the four clamping rods (5) to move closer to each other and clamp the steel pipe body (8) in the center. The rotating component drives the clamping ring (2) to rotate and the clamping rods (5) to rotate around the axis, so that the steel pipe body (8) can rotate around the axis and move along the axis.

2. The spiral steel pipe production and processing clamping device according to claim 1, characterized in that: The clamping ring (2) has four sliding grooves (3) with a length direction passing through the center of the circle in a circular array on its end face. The control component includes four sliding rods (4) that slide through the sliding grooves (3), a rotating block fixedly set on the bottom end face of the sliding rods (4), an adjusting ring (20) that passes through the clamping ring (2), and a control component that controls the adjustment ring (20) to rotate. The adjusting ring (20) has four limiting grooves (21) that slide on different rotating blocks respectively on its end face. The limiting grooves (21) have an arc structure in the length direction, and their two ends are close to the outer ring and inner ring of the adjusting ring (20) respectively.

3. The spiral steel pipe production and processing clamping device according to claim 2, characterized in that: The control components include a driven rack fixedly mounted on the outer ring surface of the clamping ring (2), an adjusting block (6) slidably mounted on the outer ring of the clamping ring (2), an adjusting rack (22) mounted in the adjusting block (6) and meshing with the driven rack, and a control screw (23) with one end threaded through the adjusting rack (22) along the length direction and the other end connected to the motor.

4. The spiral steel pipe production and processing clamping device according to claim 3, characterized in that: The rotating assembly includes a rotating ring (7) rotatably disposed on the end face of the clamping ring (2) away from the clamping rod (5), a rotating rack (18) fixedly disposed on the outer ring surface of the rotating ring (7), and a drive gear (19) driven by a motor and meshing with the rotating rack (18); an adjusting block (6) is fixedly connected to the end face of the rotating ring (7).

5. The spiral steel pipe production and processing clamping device according to any one of claims 1 to 4, characterized in that: The clamping mechanism also includes a moving component that controls the steel pipe body (8) to move axially. The moving component includes a slide rail (9) arranged along the axis of the parallel clamping ring (2), a sliding screw (11) that passes through the slide rail (9) and is opened in the slide groove (10) along the length direction and is driven by a motor, a slider (13) that passes through the slide groove (10) and is threadedly connected to the sliding screw (11), and a fixing member that is set on the slider (13) and fixes one end of the steel pipe body (8). The slide groove (10) is parallel to the sliding screw (11) and has a sliding rod (12) that moves through the slider (13).

6. The spiral steel pipe production and processing clamping device according to claim 5, characterized in that: The fixing components include a rotating disk (14) positioned above the slider (13) and parallel to the clamping ring (2), a limiting ring (24) rotatably sleeved on the rotating disk (14) and connected to the slider (13), a limiting rod (16) passing through a positioning groove (15) on the end face of the rotating disk (14), two positioning blocks (26) symmetrically slidably sleeved on the rod of the limiting rod (16), a limiting spring (27) sleeved on the rod of the limiting rod (16) and connected to different positioning blocks (26) at both ends, a lifting block (25) movably passing through the rotating disk (14) in the vertical direction and symmetrically inclined to fit the two positioning blocks (26) respectively, a positioning rod (28) positioned on the rotating disk (14) and connected to different positioning blocks (26) respectively, and a fixing structure for controlling the lifting of the lifting block (25).

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