Steel pipe clamping device
The steel pipe clamping device addresses the issues of manual control and surface damage in weld seam grinding by using a drive and lift mechanism with a buffer spring and proximity switch for consistent clamping, enhancing automation and safety in steel pipe processing.
Patent Information
- Application Number
- CN202422325014.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-24
AI Technical Summary
During use, the existing automatic weld repairing machine for the inner and outer welds at the end of the steel pipe is prone to offset or the clamping force cannot be controlled, resulting in uneven grinding and damage to the steel pipe surface, posing safety hazards.
A steel pipe clamping device is designed, including a driving device, a hoisting device and a clamping device, and automatic clamping is achieved using buffer springs and proximity switches. The clamping force is controlled through proximity switches to avoid damage to the steel pipe surface.
The automatic positioning and clamping of steel pipes is realized, the grinding quality and safety are improved, the manual operation needs are reduced, and the steel pipes are adapted to different specifications are reduced, and labor intensity and safety risks are reduced.
Smart Images
Figure CN223098928U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of steel pipe clamps, and particularly relates to a steel pipe clamping device. Background Art
[0002] At present, the pipe end weld grinding machines used in the straight seam submerged arc welded pipe production line are manually controlled and linearly fed. There is one working station for the internal and external weld grinding respectively, and one set of weld grinding equipment is configured at each of the two pipe ends at each working station. For the internal and external weld grinding, the processing time at each working station is about 2 minutes, and it takes about 4.5 minutes to complete the internal and external weld grinding of a pipe. For the external weld grinding, since the width of the grinding abrasive belt is 50 mm and it grinds longitudinally along the external weld, it is difficult to thoroughly grind the edges of the weld, and manual grinding is required.
[0003] The existing pipe end weld grinding machines rely on manual control of the weld grinding amount, and it is difficult to ensure the grinding quality. The labor intensity of the grinding workers is high and the work efficiency is low. Therefore, an automatic grinding machine for the internal and external welds of the steel pipe end has been invented in the prior art. It applies modern advanced vision technology, detection, and network communication technology to realize full automation of detection and grinding, and the internal and external weld grinding is fully automatically completed at one working station.
[0004] However, in the prior art, during the use of the automatic grinding machine for the internal and external welds of the steel pipe end, the steel pipe is placed on the pipe rotating device. In some factories, the steel pipe is not effectively fixed. Therefore, during the operation of the grinding machine, the position of the steel pipe will be driven by the grinding machine and thus shift, resulting in a change in the grinding position, reducing the grinding effect, and even causing the steel pipe to fall and posing a safety problem for the workers; in addition, in some other factories, even if the steel pipe is fixed, the clamping force cannot be effectively controlled, which will cause certain damage to the surface of the steel pipe.
[0005] Based on this, the utility model proposes a steel pipe clamping device. Content of the Utility Model
[0006] In order to solve the above problems in the prior art, that is, when the steel pipe is fixed, the clamping force cannot be effectively controlled, which will cause certain damage to the surface of the steel pipe, the utility model provides a steel pipe clamping device, which includes a driving device, a jacking device, and a clamping device symmetrically arranged along the axis of the steel pipe;
[0007] The driving device is drivingly connected to the jacking device, and the clamping device is installed on the jacking device; the driving device is used to drive the jacking device to drive the clamping device to move forward towards both sides of the steel pipe;
[0008] The clamping device includes a frame, a buffer spring, clamping blocks, and proximity switches. The frame includes at least two movable panels. The two movable panels are fixed by the buffer spring. Clamping blocks are installed on the movable panel close to the steel pipe side, and the clamping blocks are used to clamp the steel pipe.
[0009] Proximity switches are installed on the movable panel, and the proximity switches are used to detect the compression length of the buffer spring.
[0010] Preferably, the driving device is installed in a protective cover, and the protective cover is detachably fixed to the ground or a supporting device fixed to the ground.
[0011] Preferably, the driving device is an AC motor.
[0012] Preferably, the jacking device includes a screw jack and a guiding device;
[0013] The driving device is drivingly connected to the screw jack. The screw jack is rotationally connected to the frame. The frame is fixed to the guiding device, and the guiding device reciprocates along the protective cover.
[0014] Preferably, the guiding device reciprocates along the protective cover, and its structure is as follows:
[0015] The guiding device includes a guide rod and a guide rail;
[0016] The guide rod is fixed to the frame, the guide rod is arranged in the guide rail and moves along it, and the guide rail is installed on the protective cover.
[0017] Preferably, through holes are provided at the corresponding guide rail positions on the protective cover, and the guide rod can pass through the guide rail and the through holes to achieve reciprocating movement.
[0018] Preferably, two sets of the guide rod and the guide rail are symmetrically arranged along the center line of the protective cover.
[0019] Preferably, the surface of the clamping block in contact with the steel pipe is an inclined surface.
[0020] Preferably, two sets of the clamping blocks are symmetrically arranged along the center of the frame.
[0021] Preferably, a plurality of guide rails are arranged on the protective cover along the length direction of the guide rod.
[0022] Advantages of the present utility model:
[0023] High degree of automation: The device realizes the automatic clamping and releasing of the steel pipe during the grinding process, reduces the need for manual operation, and improves production efficiency. The automatic control ensures the consistency and reliability of each clamping, which helps to improve product quality.
[0024] Accurate positioning: Proximity switches are used to precisely control the spring compression during the clamping process, ensuring that the steel pipe is accurately positioned and avoiding uneven grinding caused by position deviation.
[0025] Protect the surface of the steel pipe: The clamping of the steel pipe is achieved through the elastic characteristics of the buffer spring, avoiding damage to the surface of the steel pipe caused by excessive clamping force. The buffer spring can absorb the impact force during the clamping process and reduce the risk of scratches on the surface of the steel pipe.
[0026] Improve safety: The steel pipe is stably clamped during the grinding process, reducing the risk of accidental movement or dropping of the steel pipe and improving the safety of the workplace. The device can operate reliably without manual intervention, reducing the workload of the operator and the risk of potential operation errors.
[0027] Easy to maintain and adjust: The device has a simple structure, facilitating daily maintenance and troubleshooting. The clamping force can be easily adjusted by adjusting the pre-tightening force of the buffer spring to adapt to steel pipes with different diameters and wall thicknesses.
[0028] Enhance flexibility: The position of the clamping mechanism can be quickly adjusted according to different steel pipe specifications, suitable for the processing of steel pipes of various sizes. Description of the Drawings
[0029] Other features, objectives, and advantages of this application will become more apparent by reading the detailed description of the non-restrictive embodiments with reference to the following drawings:
[0030] Figure 1 is an axonometric schematic diagram of a steel pipe clamping device of the present utility model
[0031] Figure 2 is a front view of a steel pipe clamping device of the present utility model;
[0032] Figure 3 is an internal structure schematic diagram of a steel pipe clamping device of the present utility model;
[0033] Figure 4 is a schematic diagram of the drive device of a steel pipe clamping device of the present utility model;
[0034] Figure 5 is a schematic diagram of the clamping device of a steel pipe clamping device of the present utility model. Detailed Implementation Modes
[0035] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than limiting the utility model. In addition, it should be noted that for the convenience of description, only the parts related to the relevant utility model are shown in the drawings.
[0036] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and embodiments.
[0037] The present utility model provides a steel pipe clamping device. Refer to Figures 1 to 5 , specifically see Figure 1 , Figure 2 , Figure 3 and Figure 5 , a steel pipe clamping device, which includes a driving device 1, a jacking device 2 and a clamping device 3 symmetrically arranged along the axis of the steel pipe;
[0038] The driving device 1 is drivingly connected to the jacking device 2, and the clamping device 3 is installed on the jacking device 2; the driving device 1 is used to drive the jacking device 2 to drive the clamping device 3 to move forward on both sides of the steel pipe;
[0039] The clamping device includes a frame 31, a buffer spring 32, a clamping block 33 and a proximity switch 34. The frame 31 includes at least two movable panels, and the two movable panels are fixed by the buffer spring 32. A clamping block 33 is installed on the movable panel close to the steel pipe side, and the clamping block 33 is used to clamp the steel pipe;
[0040] A proximity switch 34 is installed on the movable panel, and the proximity switch 34 is used to detect the compression length of the buffer spring 32.
[0041] Specifically, when the buffer spring 32 is compressed to a specified length, the proximity switch 34 feeds a signal in place to the control system, the screw jack 21 stops moving forward and maintains the current state, and the clamping mechanisms at both ends act simultaneously to ensure that the clamping mechanisms on both sides clamp the steel pipe.
[0042] Specifically, see Figure 3 , the driving device 1 is installed in the protective cover 4, and the protective cover 4 is detachably fixed to the ground or a supporting device fixed to the ground.
[0043] See Figure 4 , the driving device 1 in the present utility model is an AC motor, and the driving device 1 is the power output part of the whole device.
[0044] Specifically, see Figure 3 , the jacking device 2 includes a screw jack 21 and a guiding device 22;
[0045] The driving device 1 is drivingly connected to the screw jack 21. The screw jack 21 rotates with the frame 31. The frame 31 is fixed to the guiding device 22, and the guiding device 22 reciprocates along the protective cover 4.
[0046] When the present utility model is in use, after the steel pipe reaches the designated position, the AC motor drives the screw jack 21 to extend. The top clamp 33 at the top of the clamping device 3 contacts the steel pipe and drives the buffer spring 32 to compress. When the buffer spring 32 is compressed to the designated length, the proximity switch 34 feeds back a signal in place to the control system, and the screw jack 21 stops advancing and maintains the current state; the two end clamps 33 act simultaneously to clamp the steel pipe.
[0047] The present utility model utilizes the elastic force of the buffer spring 32 as the clamping force for the steel pipe, drives the screw jack 21 with the driving device 1, and controls the start and stop positions of the screw jack 21 through the proximity switch 34, so as not to scratch the surface of the steel pipe due to unstable clamping force.
[0048] Specifically, both the driving device 1 and the screw jack 21 have a self-locking function to ensure the clamping force.
[0049] Specifically, the screw jack 21 is prior art. This embodiment provides a realized structure, specifically:
[0050] The screw jack 21 includes a screw and a nut;
[0051] The screw is drivingly connected to the driving device 1. The screw is in threaded connection with the nut. The nut is fixed to the protective cover 4. The screw passes through the protective cover 4 and is rotatably connected to the frame 31. The rotatable connection can select a bearing connection;
[0052] In other words, the nut is fixed, and the screw will reciprocate while rotating.
[0053] The specific manner in which the screw is drivingly connected to the driving device 1 is prior art. It can be a bevel gear driving connection or a worm and worm gear can also be used. The present utility model does not make specific limitations. Any manner capable of realizing its driving connection is within the protection scope of the present utility model.
[0054] Specifically, the guiding device 22 reciprocates along the protective cover 4, and its structure is:
[0055] The guiding device 22 includes a guide rod 221 and a guide rail 222;
[0056] The guide rod 221 is fixed to the frame 31. The guide rod 221 is arranged in the guide rail 222 and moves along it. The guide rail 222 is installed on the protective cover 4.
[0057] Specifically, the guide rod 221 and the guide rail 222 play a guiding role for the front fixture structure, enabling the fixture to move along the radial direction of the steel pipe.
[0058] Among them, the shapes of the guide rod 221 and the guide rail 222 cooperate with each other, and can be circular or rectangular. The present utility model does not limit this, and any shape is within the protection scope of the present utility model.
[0059] Specifically, through holes are provided at the positions of the corresponding guide rails 222 on the protective cover 4, and the guide rod 221 can pass through the guide rail 222 and the through holes to achieve reciprocating movement.
[0060] Specifically, two groups of the guide rod 221 and the guide rail 222 are symmetrically arranged along the center line of the protective cover 4.
[0061] Specifically, the surface of the clamping block 33 in contact with the steel pipe is an inclined surface. The position of the clamping block 33 can be adjusted according to the diameter of the steel pipe, and steel pipes of different specifications can be clamped, which has a certain versatility. Specifically, multiple mounting hole positions are provided on the movable panel close to the steel pipe side, and the mounting position of the clamping block 33 on the movable panel can be adjusted according to different pipe diameters to adapt to different pipe diameters.
[0062] Among them, through the mounting hole positions and bolts, the clamping block 33 can be detachably fixed to the movable panel.
[0063] Specifically, referring to Figure 5 , two groups of the clamping blocks 33 are symmetrically arranged along the center of the frame 31.
[0064] Among them, only by symmetrically arranging the clamping blocks 33 can the steel pipe be clamped. The position of the clamping block 33 installed on the frame 31 can be arbitrarily adjusted according to the size of the diameter of the steel pipe. The adjustment structure is a prior art, which can be a lead screw structure or can be adjusted by a hydraulic mechanism. The adjustment mechanism is a prior art and will not be elaborated here.
[0065] Specifically, referring to Figure 3 , a plurality of guide rails 222 are arranged on the protective cover 4 along the length direction of the guide rod 221.
[0066] Among them, by arranging a plurality of guide rails 222, the reciprocating movement of the guide rod 221 can be made more stable, so that the clamping block 33 can be driven to clamp the steel pipe more stably, improving the clamping effect.
[0067] In the description of the present utility model, terms indicating directions or positional relationships such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0068] In addition, it should be noted that in the description of the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0069] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, so that a process, method, article or device / equipment comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes the elements inherent in these process, method, article or device / equipment.
[0070] So far, the technical solution of the present utility model has been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present utility model.
Claims
1. A steel pipe clamping device, characterized in that, It includes a driving device (1), a jacking device (2) and a clamping device (3) symmetrically arranged along the axis of the steel pipe; The driving device (1) is drivingly connected to the jacking device (2), and the clamping device (3) is installed on the jacking device (2); the driving device (1) is used to drive the jacking device (2) to drive the clamping device (3) to move forward to both sides of the steel pipe; The clamping device includes a frame (31), a buffer spring (32), a clamping block (33) and a proximity switch (34). The frame (31) includes at least two movable panels. The two movable panels are fixed by the buffer spring (32). A clamping block (33) is installed on the movable panel close to the steel pipe side, and the clamping block (33) is used to clamp the steel pipe; A proximity switch (34) is installed on the movable panel, and the proximity switch (34) is used to detect the compression length of the buffer spring (32).
2. The steel pipe clamping device according to claim 1, characterized in that, The driving device (1) is installed in a protective cover (4), and the protective cover (4) is detachably fixed to the ground or a support device fixed to the ground.
3. The steel pipe clamping device according to claim 1, characterized in that, The driving device (1) is an AC motor.
4. The steel pipe clamping device according to claim 2, characterized in that, The jacking device (2) includes a screw jack (21) and a guiding device (22); The driving device (1) is drivingly connected to the screw jack (21), the screw jack (21) is rotatably connected to the frame (31), the frame (31) is fixed to the guiding device (22), and the guiding device (22) reciprocates along the protective cover (4).
5. The steel pipe clamping device according to claim 4, characterized in that, The guiding device (22) reciprocates along the protective cover (4), and its structure is: The guiding device (22) includes a guiding rod (221) and a guide rail (222); The guiding rod (221) is fixed to the frame (31), the guiding rod (221) is arranged in the guide rail (222) and moves along it, and the guide rail (222) is installed on the protective cover (4).
6. The steel pipe clamping device according to claim 5, characterized in that, A through hole is opened at the position of the guide rail (222) corresponding to the protective cover (4), and the guiding rod (221) can pass through the guide rail (222) and the through hole to realize reciprocating movement.
7. A steel pipe clamping device according to claim 5, characterized in that, Two groups of the guiding rod (221) and the guide rail (222) are symmetrically arranged along the midline of the protective cover (4).
8. The steel pipe clamping device according to claim 1, characterized in that, The surface of the clamping block (33) in contact with the steel pipe is an inclined surface.
9. The steel pipe clamping device according to claim 1, characterized in that, Two groups of the clamping blocks (33) are symmetrically arranged along the center of the frame (31).
10. A steel pipe clamping device according to claim 5, characterized in that, A plurality of guide rails (222) are arranged on the protective cover (4) along the length direction of the guiding rod (221).