Pipeline clamping device

Abstract

The utility model discloses a pipeline clamping device, relates to the technical field of clamping devices, and is mainly used for solving the problem that the concentricity between processing equipment and a workpiece is difficult to guarantee by the existing pipeline clamping device. According to the main structure, the device comprises a clamping mechanism, the clamping mechanism comprises a mounting plate, a clamping arm, a clamping arm adjusting screw rod and a wrench are arranged on the mounting plate, the device further comprises a fixing plate connected with the plate face of the mounting plate in parallel, and two supporting square rods are arranged on the fixing plate in the radial direction of a pipeline, and the lower ends of the supporting square rods extend out of the fixing plate and make contact with the outer wall of the pipeline; indicating scales are arranged on the outer wall of the supporting square rod, and an adjusting assembly capable of driving the supporting square rod to move in the axial direction is further arranged on the fixing plate. According to the pipeline clamping device provided by the utility model, the concentricity between machining equipment clamped on a pipeline and a workpiece can be ensured, and the machining quality is further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping devices, in particular to a pipeline clamping device. Background Art

[0002] At present, in all walks of life, it is often necessary to clamp a processing device onto a pipeline through a pipeline clamping device to achieve the circular processing of the pipeline. Therefore, in order to ensure the processing quality, it is necessary to ensure that the clamping device is centered and clamped on the pipeline, so as to achieve a high concentricity between the processing device and the workpiece. However, for the existing pipeline clamping devices that clamp the pipeline through clamping blocks, most of them adjust the positions of the clamping blocks respectively through independently arranged adjusting screws to complete the clamping of workpieces with different pipe diameters. For example:

[0003] Chinese Patent with Publication No. CN117798593A: A welding caliper clamping device applicable to pipelines with a wide range of diameters and its application. It includes a base, a clamp arm, a clamping block, a movement control mechanism, a connecting rod, a wrench, a welding torch and a driving mechanism. Among them, the base is a C-shaped seat, and movement control mechanisms are symmetrically and horizontally arranged on one side of the base. Clamp arms are respectively arranged on the two movement control mechanisms. A clamping block is arranged at the bottom of the clamp arm. One ends of a connecting rod and the corner of a wrench are respectively connected to the tops of the two clamp arms. The other end of the connecting rod is connected to the wrench through a positioning pin. At the same time, the movement control mechanism includes a nut, a control screw, a housing and a fixed block. One end of the control screw is fixedly provided with a nut, and the other end is arranged in the fixed block through a bearing. The fixed block is fixed to the base. The housing is threadedly sleeved on the control screw. The housing is a rectangular slider, and a circular boss is arranged on the upper side of the housing. Threads are provided outside the circular boss. The circular boss penetrates through the clamp arm, and the relative fixation between the clamp arm and the movement control mechanism is realized by adding a bolt to the top of the circular boss. The invention is applicable to the clamping of large-diameter pipelines and small-diameter pipelines, solves the problem of the diameter of the welded pipeline faced in actual production, and improves the diameter range of the clamped welded pipeline.

[0004] Therefore, it is difficult to ensure the centered clamping of the clamping device on the pipeline through the existing pipeline clamping devices, so it is difficult to ensure the concentricity between the processing device and the workpiece, and thus it is impossible to ensure the processing quality. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a pipeline clamping device, through which the concentricity between the processing device clamped on the pipeline and the workpiece can be ensured, and thus the processing quality can be ensured.

[0006] The technical solution of the present utility model to solve the above technical problems is: A pipeline clamping device, including a clamping mechanism. The clamping mechanism includes a vertically arranged mounting plate. On one side surface of the mounting plate, two clamping arms extending downward to both sides of the pipeline are relatively arranged. On the mounting plate, there are also two clamping arm adjusting screws and a wrench. It further includes a fixing plate connected in parallel with the surface of the mounting plate. On the fixing plate, two supporting square rods extending downward to the outside of the fixing plate and contacting the outer wall of the pipeline are arranged along the radial direction of the pipeline. An indicating scale is arranged on the outer wall of the supporting square rod. On the fixing plate, there is also an adjusting component capable of driving the axial movement of the supporting square rod.

[0007] As a further improvement of the present utility model, a square chute passing through the entire fixing plate along the radial direction of the pipeline is arranged on the surface of the fixing plate. The supporting square rod is slidably installed in the square chute.

[0008] As a further improvement of the present utility model, the adjusting component includes a supporting adjusting screw extending in the same direction as the supporting square rod and having a threaded connection and cooperation with the outer wall of the lower part of the supporting square rod. The supporting adjusting screw is arranged in the square chute, and a limiting block rotatably installed on the inner wall of the square chute is fixedly arranged on the upper part of the supporting adjusting screw. The upper end of the supporting adjusting screw extends to the outside of the fixing plate and is connected with an adjusting knob.

[0009] As a further improvement of the present utility model, the adjusting knob includes a knob inner shaft. One end of the knob inner shaft is provided with a threaded hole for fixedly installing the entire adjusting knob. The other end is sleeved with a knob outer shell capable of axially moving along the knob inner shaft. External teeth are arranged on the outer wall of the knob inner shaft. Internal teeth capable of axially engaging and disengaging with the external teeth are arranged on the inner wall of the knob outer shell.

[0010] As a further improvement of the present utility model, a rear cover is arranged at one end of the knob outer shell away from the knob inner shaft. A knob spring with both ends respectively in tight contact with the end face of the knob inner shaft and the rear cover is arranged between the rear cover and the end face of the knob inner shaft.

[0011] As a further improvement of the present utility model, a spring positioning boss for sleeving one end of the knob spring is arranged on the rear cover. A spring slot for inserting the other end of the knob spring is arranged on the end face of the knob inner shaft.

[0012] As a further improvement of the present utility model, an adjusting knob is connected to the control end of the clamping arm adjusting screw.

[0013] As a further improvement of the present utility model, clamping blocks are arranged on the relative sides of the lower ends of the two clamping arms. The two clamping blocks are arranged oppositely.

[0014] As a further improvement of the present utility model, the clamping block is an arc-shaped clamping block.

[0015] As a further improvement of the present utility model, a support foot arranged along the axial direction of the pipeline is connected to the lower end of the support square rod.

[0016] Advantageous effects

[0017] Compared with the prior art, the advantages of a pipeline clamping device of the present utility model are as follows:

[0018] The clamping mechanism of this device can achieve clamping within a multi-pipe diameter range, with firm and reliable clamping. At the same time, by using two support square rods arranged along the radial direction of the pipeline and capable of axially adjusting their positions, and in cooperation with the indicating scales on the outer wall of the support square rods, it can ensure the centering clamping and installation of this device on pipelines of various diameters. Therefore, through this device, the concentricity between the processing equipment clamped to the pipeline and the workpiece can be ensured, thereby achieving high-precision positioning and ensuring the processing quality.

[0019] The adjusting knob with a special structure can prevent the change of the current pipeline position caused by the random rotation of the adjusting knob.

[0020] Through the following description and in combination with the accompanying drawings, the present utility model will become clearer. These drawings are used to explain the embodiments of the present utility model. Description of the drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 Is a perspective view of the present utility model;

[0023] Figure 2 Is one of the perspective views of the fixing plate and its accessories of the present utility model;

[0024] Figure 3 Is the other perspective view of the fixing plate and its accessories of the present utility model;

[0025] Figure 4 Is a perspective view of the cross-section of the adjusting knob of the present utility model;

[0026] Figure 5 Is a view of the present utility model in the use state.

[0027] Wherein: 1 - adjustment knob; 101 - knob housing; 102 - inner shaft of the knob; 103 - knob spring; 104 - rear cover; 105 - internal teeth; 106 - external teeth; 107 - spring slot; 108 - spring positioning boss; 2 - fixing plate; 201 - square chute; 202 - supporting square rod; 203 - supporting foot; 204 - indicating scale; 205 - supporting adjustment screw; 206 - limiting block; 3 - mounting plate; 301 - clamping block; 302 - clamping arm; 303 - wrench. Detailed implementation manners

[0028] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; of course, it can also be a mechanical connection or an electrical connection; in addition, it can be a direct connection or an indirect connection through an intermediate medium, or the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0030] Now, embodiments of the present utility model will be described with reference to the accompanying drawings.

[0031] Embodiment

[0032] The detailed implementation manners of the present utility model are as Figures 1-5 shown. A pipeline clamping device includes a clamping mechanism. The clamping mechanism includes a vertically arranged mounting plate 3. On one side surface of the mounting plate 3, two clamping arms 302 extending downward to both sides of the pipeline are relatively arranged. The mounting plate 3 is also provided with two clamping arm adjusting screws and a wrench 303. On the opposite sides of the lower ends of the two clamping arms 302, clamping blocks 301 are provided. The two clamping blocks 301 are arranged relatively. In this embodiment, the clamping block 301 is an arc-shaped clamping block. Regarding how to realize the adjustment of the distance between the two clamping arms 302 by the clamping arm adjusting screws and how to realize the clamping drive of the two clamping arms 302 by the wrench 303, this belongs to the conventional technical means in the art, and the connection relationship of its various components can be set with reference to the Chinese patent with the publication number CN117798593A - "A welding caliper clamping device applicable to pipelines with a wide range of diameters and its application". Therefore, it will not be elaborated in this embodiment.

[0033] In order to achieve centering clamping of the device on the pipeline, the device further includes a fixing plate 2 connected in parallel with the plate surface of the mounting plate 3. Two support square rods 202 are arranged on the fixing plate 2 along the radial direction of the pipeline, and the lower ends of the two support square rods 202 extend outside the fixing plate 2 and are in contact with the outer wall of the pipeline. At the same time, indicating scales 204 are provided on the outer walls of the support square rods 202. An adjusting assembly capable of driving the axial movement of the support square rods 202 is also provided on the fixing plate 2. Through the adjusting assembly, the axial extension amounts of the two support square rods 202 can be adjusted along the radial direction of the pipeline. Thus, in cooperation with the indicating scales 204 on the outer walls of the support square rods 202, it can be ensured that the device can be centered and clamped on pipelines with various pipe diameters. Moreover, the reason for setting the support square rods 202 to two is that two positioning points can determine a straight line, which can ensure the maximum elimination of pipeline eccentricity, thereby ensuring the centering clamping installation of the pipeline, and further ensuring the concentricity between the processing equipment and the workpiece. In this embodiment, the lower ends of the support square rods 202 are connected with support feet 203 arranged along the axial direction of the pipeline. By setting the support feet 203 in this way, the axial deflection of the pipeline can be further prevented.

[0034] The clamping mechanism of the device can achieve clamping in a multi-pipe diameter range, and the clamping is firm and reliable. At the same time, by using two support square rods 202 arranged along the radial direction of the pipeline and capable of axially adjusting their positions, in cooperation with the indicating scales 204 on the outer walls of the support square rods 202, it can be ensured that the device can be centered and clamped on pipelines with various pipe diameters. Therefore, through this device, it can be ensured that the clamping device is centered and clamped on the pipeline, so as to ensure the concentricity between the processing equipment clamped on the pipeline and the workpiece, and further high-precision positioning can be achieved, ensuring the processing quality.

[0035] In this device, in order to guide the movement path of the support square rods 202, a square chute 201 passing through the entire fixing plate 2 along the radial direction of the pipeline is provided on the plate surface of the fixing plate 2, and the support square rods 202 are slidably installed in the square chute 201. At the same time, in order to adjust the extension amount of the support square rods 202, the adjusting assembly of the device includes a support adjusting screw rod 205 extending in the same direction as the support square rods 202, and the lower outer wall of the support adjusting screw rod 205 is threadedly connected and matched with the support square rods 202. The support adjusting screw rod 205 is arranged in the square chute 201, and a limit block 206 rotatably installed on the inner wall of the square chute 201 is fixedly provided on the upper part of the support adjusting screw rod 205. The upper end of the support adjusting screw rod 205 extends outside the fixing plate 2 and is connected with an adjusting knob 1. When it is necessary to position a certain pipe diameter, by rotating the adjusting knob 1, the support adjusting screw rod 205 is driven to rotate. When the support adjusting screw rod 205 rotates, it drives the support square rods 202 to move along the radial direction of the pipeline to the specified pipe diameter scale, so as to achieve pipe diameter positioning adjustment.

[0036] Meanwhile, regarding the specific structure of the adjustment knob 1, the adjustment knob 1 includes a knob inner shaft 102, one end of which is provided with a threaded hole for fixing and installing the entire adjustment knob 1, and the other end is provided with a knob outer shell 101 that can move axially along the knob inner shaft 102. The outer wall of the knob inner shaft 102 is provided with outer teeth 106, and the inner wall of the knob outer shell 101 is provided with inner teeth 105 that can be inserted into and disengaged from the outer teeth 106 along the axial direction of the knob inner shaft 102. In this embodiment, a rear cover 104 is provided on the end of the knob outer shell 101 away from the knob inner shaft 102, and a knob spring 103 is provided between the rear cover 104 and the end surface of the knob inner shaft 102, and the two ends of the knob spring 103 are respectively in tight contact with the two. In order to install the knob spring 103 , a spring positioning boss 108 is provided on the rear cover 104 for sleeve engagement of one end of the knob spring 103 , and a spring slot 107 is provided on the end surface of the knob inner shaft 102 for inserting the other end of the knob spring 103 .

[0037] When there is no external force pressing the back cover 104, due to the spring force of the knob spring 103, the inner teeth 105 of the knob housing 101 and the outer teeth 106 of the knob inner shaft 102 are disengaged and not engaged. At this time, rotating the knob housing 101 will not drive the knob inner shaft 102 to rotate, thereby achieving a protective function. When the back cover 104 is pressed, the knob housing 101 will cause the knob spring 103 to compress, so that the inner teeth 105 of the knob housing 101 and the outer teeth 106 of the knob inner shaft 102 are engaged. At this time, rotating the knob housing 101 can drive the knob inner shaft 102 to rotate, thereby achieving a rotation adjustment function. Therefore, the special structure of the adjustment knob 1 can prevent the current pipeline position from changing due to the arbitrary rotation of the adjustment knob 1.

[0038] In addition, in order to prevent the clamp arm adjusting screw from rotating at will, the control end of the clamp arm adjusting screw is connected with an adjusting knob 1. When a specific pipe diameter needs to be clamped, pressing and rotating the adjusting knob 1 can drive the clamp arm adjusting screw of the clamping mechanism to rotate, thereby adjusting the clamp arm 302 to a suitable position, so that the appropriate clamping force is generated after the wrench 303 is turned to clamp the pipe.

[0039] When clamping the pipe, the device needs to be adjusted and set first. The specific setting method is:

[0040] S1. According to the diameter of the pipeline, press and rotate the adjusting knob 1 so that the indicating scales 204 of the two supporting square rods 202 correspond to the diameter of the pipeline, and then place the device on the pipeline with the two supporting square rods 202 as support. At this time, the wrench 303 is in a tightened and locked state. After that, press and rotate the adjusting knobs 1 on both sides of the clamping mechanism so that the clamping arms 302 clamp the pipeline;

[0041] S2. After S1, the clamping force is very small. Therefore, it is necessary to reopen the wrench 303, remove the device and readjust the adjusting knobs 1 on both sides of the clamping mechanism again, and slightly adjust the clamping arm 302 in the direction slightly smaller than the pipe diameter. The specific adjustment size depends on the actual clamping force. The smaller the set pipe diameter to be clamped is compared with the pipe to be clamped, the greater the clamping force will be. At the same time, it also requires a greater force to push the wrench 303 during clamping. Therefore, in actual use, it can be adjusted to an appropriate amount according to the actual situation.

[0042] S3. After setting, each time the device is used, only need to place the device on the pipe and then turn the wrench 303 to the locking position, and the device will be accurately clamped and positioned on the pipe.

[0043] The present utility model has been described in combination with the best embodiments, but the present utility model is not limited to the disclosed embodiments above, and should cover various modifications and equivalent combinations made according to the essence of the present utility model.

Claims

1. A pipe clamping device, comprising a clamping mechanism, the clamping mechanism comprising a vertically arranged mounting plate (3), two clamping arms (302) extending downward to both sides of the pipe being arranged opposite to each other on one side of the mounting plate (3), two clamping arm adjustment screws and a wrench (303) being also arranged on the mounting plate (3), characterized in that: It also comprises a fixing plate (2) connected in parallel to the surface of the mounting plate (3), the fixing plate (2) being provided with two supporting square rods (202) along the radial direction of the pipeline, the lower ends of which extend outside the fixing plate (2) and contact the outer wall of the pipeline, the outer wall of the supporting square rod (202) being provided with indicating scales (204), and the fixing plate (2) being further provided with an adjusting component capable of driving the supporting square rod (202) to move axially.

2. The pipe clamping device according to claim 1, characterized in that: A square slide groove (201) is provided on the plate surface of the fixed plate (2) and passes through the entire fixed plate (2) along the radial direction of the pipeline, and the supporting square rod (202) is slidably installed in the square slide groove (201).

3. The pipe clamping device according to claim 2, characterized in that: The adjustment assembly comprises a support adjustment screw (205) extending in the same direction as the support square rod (202) and having a lower outer wall threadedly connected to the support square rod (202); the support adjustment screw (205) is arranged in the square slide groove (201) and a limit block (206) rotatably mounted on the inner wall of the square slide groove (201) is fixedly provided on the upper part of the support adjustment screw (205); the upper end of the support adjustment screw (205) extends outside the fixed plate (2) and is connected to an adjustment knob (1).

4. The pipe clamping device according to claim 3, characterized in that: The adjusting knob (1) comprises an inner knob shaft (102), one end of the inner knob shaft (102) being provided with a threaded hole for fixing and mounting the entire adjusting knob (1), and the other end being externally sleeved with a knob housing (101) capable of axially moving along the inner knob shaft (102), an outer wall of the inner knob shaft (102) being provided with outer teeth (106), and an inner wall of the outer knob housing (101) being provided with inner teeth (105) capable of axially engaging with and disengaging from the outer teeth (106) along the inner knob shaft (102).

5. The pipe clamping device according to claim 4, characterized in that: A rear cover (104) is provided on one end of the knob housing (101) away from the knob inner shaft (102), and a knob spring (103) is provided between the rear cover (104) and the end surface of the knob inner shaft (102), with both ends respectively in tight contact with the two ends.

6. The pipe clamping device according to claim 5, characterized in that: The rear cover (104) is provided with a spring positioning boss (108) for sleeve engagement of one end of the knob spring (103), and the end surface of the knob inner shaft (102) is provided with a spring retaining groove (107) for inserting the other end of the knob spring (103).

7. The pipe clamping device according to any one of claims 3 to 6, characterized in that: An adjusting knob (1) is connected to the control end of the clamp arm adjusting screw.

8. The pipe clamping device according to claim 1, characterized in that: Clamping blocks (301) are provided on opposite sides of the lower ends of the two clamping arms (302), and the two clamping blocks (301) are arranged opposite to each other.

9. The pipe clamping device according to claim 8, characterized in that: The clamping block (301) is an arc-shaped clamping block.

10. The pipe clamping device according to claim 1, characterized in that: The lower end of the supporting square rod (202) is connected to a supporting foot (203) arranged along the axial direction of the pipeline.

Images