Pipe end grinding equipment for spiral seam submerged arc welding pipe

Abstract

The utility model relates to the technical field of spiral seam submerged arc welding pipe machining, and discloses spiral seam submerged arc welding pipe end grinding equipment. By arranging the movable rack, the whole equipment can be driven to move, so that the pipe end of the spiral seam submerged arc welding pipe can be polished in the continuous propelling process, and finally the end of the spiral seam submerged arc welding pipe can be polished to be flat; a connecting sleeve is arranged on a rotating disc, a fastening rod piece is arranged in the connecting sleeve in a sleeved mode, so that the fastening rod piece and the connecting sleeve can be integrally stretched or shortened, and the position of a polishing device at the pipe end of the fastening rod piece is changed in the stretching or shortening process; according to the spiral seam submerged arc welding pipe end polishing device, the pipe ends of spiral seam submerged arc welding pipes with different pipe diameters can be polished, a first connecting hole, a second connecting hole and a threaded groove are formed, so that a threaded rod can be inserted into a fastening rod piece and a connecting sleeve to be stably fixed, and the stability of equipment in the running process is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of spiral seam submerged arc welded pipe processing, and in particular to a spiral seam submerged arc welded pipe end grinding device. Background Art

[0002] Spiral submerged arc welded steel pipes are metal pipes with spiral seams, welded using the submerged arc welding process. They are used for liquid transportation, such as water supply and drainage. They are used for gas transportation, such as coal gas, steam, and liquefied petroleum gas. They are also used for structural applications, such as piling pipes, bridges, docks, roads, and building structures.

[0003] After welding, the ends of spiral submerged arc welded steel pipes need to be polished. During the polishing process, the protrusions on the ends of the spiral submerged arc welded steel pipes are smoothed by friction. The polishing equipment in the existing technology can only polish spiral submerged arc welded steel pipes with the same aperture. When the aperture of the spiral submerged arc welded steel pipe changes, the polishing head needs to be replaced for polishing. The process of replacing the polishing head is time-consuming and labor-intensive. Utility Model Content

[0004] In view of the above problems, an embodiment of the present application provides a spiral seam submerged arc welded pipe end grinding device, which can be conveniently adjusted according to the diameter of the spiral seam submerged arc welded steel pipe, so that it can adapt to spiral seam submerged arc welded steel pipes of various different diameters and grind their ends. There is no need to replace the grinding head during the entire process, which can effectively save time and improve production efficiency.

[0005] According to one aspect of an embodiment of the present application, a spiral submerged arc welded pipe end grinding device is provided. The spiral submerged arc welded pipe end grinding equipment includes a movable frame, a rotating shaft is rotatably provided on the movable frame, one end of the rotating shaft is connected to a driving device, and the other end of the rotating shaft is coaxially connected to a rotating disk, and four connecting sleeves are fixed in an annular array at one end of the rotating disk away from the rotating shaft, and the four connecting sleeves all extend radially along the rotating disk, a fastening rod is sleeved in the connecting sleeve, and a plurality of first connecting holes are provided on the fastening rod at intervals along the axial direction of the fastening rod, a second connecting hole is provided on the pipe wall on the top side of the connecting sleeve, and a threaded groove is provided on the inner pipe wall on the bottom side of the connecting sleeve, and a threaded rod is provided between the first connecting hole, the second connecting hole and the threaded groove, and one end of the fastening rod extends to the outer end of the connecting sleeve and is connected to a grinding device, and the grinding device includes a fixed block, an arc groove is provided on the fixed block that penetrates in the horizontal direction, and a plurality of wear-resistant protrusions are provided on the inner bottom wall of the arc groove.

[0006] In some embodiments, a length marking scale mark is provided on a side of the fastening rod facing away from the rotating shaft, and the length marking scale mark extends along the axial direction of the fastening rod.

[0007] In some embodiments, a cooling component is included, and the cooling component includes a water spray pipe, the water outlet end of the water spray pipe extends to the polishing device, and the water inlet end of the water spray pipe is connected to a water supply device through a pipeline.

[0008] In some embodiments, a bearing ring is externally connected to the outer periphery of the middle portion of the rotating shaft, and the plurality of water spray pipes are fixed on the outer side wall of the bearing ring.

[0009] In some embodiments, the four connecting sleeves are formed by two sleeves crossing at right angles, and the sleeves are welded to one end of the rotating disk.

[0010] In some embodiments, two opposite receiving grooves are formed on the inner side wall of the arc-shaped groove, a circular roller is hinged in the receiving groove, and the outer side of the circular roller extends into the arc-shaped groove.

[0011] The beneficial effects of the present application are as follows: by setting a movable frame, the entire equipment can be driven to move, so that the pipe end of the spiral seam submerged arc welded pipe can be polished during continuous advancement and finally its end can be polished flat; by setting a connecting sleeve on the rotating disk and sleeved with a fastening rod in the connecting sleeve, the fastening rod and the connecting sleeve can be stretched or shortened as a whole; during the stretching or shortening process, the position of the grinding device of the pipe end of the fastening rod will change, thereby meeting the grinding operation of the pipe end of spiral seam submerged arc welded pipes of different diameters; and by setting a first connecting hole, a second connecting hole and a threaded groove, the threaded rod can be inserted into the fastening rod and the connecting sleeve for stable fixation, thereby ensuring the stability of the equipment during operation.

[0012] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0014] Figure 1 A schematic diagram of the overall structure of a spiral seam submerged arc welded pipe end grinding device provided in an embodiment of the present application;

[0015] Figure 2 A schematic side view of the structure of the rotating disk provided in an embodiment of the present application;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the fastening rod provided in an embodiment of the present application.

[0017] The accompanying drawings in the specific implementation manner are as follows:

[0018] Spiral submerged arc welded pipe end grinding equipment 100, movable frame 110, rotating shaft 120, driving device 121, rotating disk 130, connecting sleeve 131, second connecting hole 131a, threaded groove 131b, fastening rod 132, first connecting hole 132a, threaded rod 133, grinding device 140, fixing block 141, arc groove 141a, wear-resistant protrusion 141b, circular roller 141c, length marking scale scratch 150, cooling component 160, water spray pipe 161, water supply equipment 162, bearing ring 170. DETAILED DESCRIPTION

[0019] The following will describe in detail the embodiments of the technical solution of the present application in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only used as examples and cannot be used to limit the scope of protection of the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present application; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" in the specification and claims of the present application and the above-mentioned description of the drawings and any variations thereof are intended to cover non-exclusive inclusions.

[0020] Specifically, please refer to Figures 1 to 3 , Figure 1 This is a schematic diagram of the overall structure of the spiral seam submerged arc welded pipe end grinding equipment provided in the embodiment of the present application. Figure 2 This is a side view of the rotating disk provided in an embodiment of the present application. Figure 3Schematic diagram of the cross-sectional structure of the fastening rod provided in an embodiment of the present application. The spiral seam submerged arc welding pipe end grinding equipment 100 includes a mobile frame 110. The mobile frame 110 can be set at the end of the spiral seam submerged arc welding equipment by setting a slide rail or the like so that it can slide. A rotating shaft 120 is rotatably provided on the mobile frame 110. One end of the rotating shaft 120 is connected to a driving device 121. The rotating shaft 120 will rotate under the drive of the driving device 121. The rotating shaft 120 can be connected to the mobile frame 110 through bearings and other devices. The driving device 121 includes but is not limited to a servo motor and the like. The other end of the rotating shaft 120 is coaxially connected to a rotating disk 130. The rotating disk 130 can rotate in steps under the drive of the rotation. Four connecting sleeves 131 are fixed in an annular array to the end of the rotating disk 130 facing away from the rotating shaft 120. Each of the four connecting sleeves 131 extends radially along the rotating disk 130 and is fixedly connected to the rotating disk 130. The fixing method here may be welding, threading, etc. A fastening rod 132 is sleeved within the connecting sleeve 131. The fastening rod 132 can be slidably withdrawn or retracted within the connecting sleeve 131, thereby changing the position of the grinding device 140. The fastening rod 132 is provided with a plurality of first connecting holes 132a spaced axially therethrough. A second connecting hole 131a is provided in the wall of the top side of the connecting sleeve 131, and a threaded groove 131b is provided in the inner wall of the bottom side of the connecting sleeve 131. A threaded rod 133 is provided between the first connecting hole 132a, the second connecting hole 131a, and the threaded groove 131b. After the fastening rod 132 is moved to the appropriate position, the threaded rod 133 can be passed through the second connecting hole 131a and the first connecting hole 132a in sequence and then tightened into the threaded groove 131b, thereby completing the fastening and installation between the fastening rod 132 and the connecting sleeve 131. One end of the fastening rod 132 extends to the outer end of the connecting sleeve 131 and is connected to a grinding device 140, which is used to grind the end of the spiral submerged arc welded pipe. The grinding device 140 includes a fixed block 141, which is provided with a horizontally extending arcuate groove 141a. The inner bottom wall of the arcuate groove 141a is provided with multiple wear-resistant protrusions 141b. The width of the arcuate groove 141a should be greater than the thickness of the spiral submerged arc welded pipe wall to prevent contact between the inner sidewall of the arcuate groove 141a and the outer sidewall of the spiral submerged arc welded pipe during the grinding process, thereby preventing wear on the sidewall of the spiral submerged arc welded pipe. The position of the grinding device 140 can be adjusted so that the end wall of the spiral submerged arc welded pipe is inserted into the arcuate groove 141a. As the rotating disk 130 rotates, the wear-resistant protrusions 141b will rub the end of the spiral submerged arc welded pipe and smooth its end.

[0021] As can be seen from the above, in the embodiment of the present application, through the above-mentioned arrangement, when the diameter of the spiral submerged arc welded pipe changes, the distance between the fastening pipe end grinding device 140 and the central axis of the rotating disk 130 can be adjusted by pulling out or feeding the corresponding fastening pipe into the connecting sleeve 131, so that it matches the diameter of the spiral submerged arc welded pipe, and then fastened by the threaded rod 133. The movable frame 110 is pushed so that the pipe end of the spiral submerged arc welded pipe is inserted into the arc groove 141a. After starting the driving device 121, the driving device 121 drives the rotating shaft 120 to rotate, and the rotating shaft 120 further drives the rotating disk 130 to rotate. The pipe end of the spiral submerged arc welded pipe will be contacted by the wear-resistant protrusion 141b and polished smooth.

[0022] In the embodiment of the present application, by providing a movable frame 110, the entire device can be driven to move, so that the pipe end of the spiral seam submerged arc welded pipe can be polished and finally its end can be polished flat during the continuous advancement process. By providing a connecting sleeve 131 on the rotating disk 130 and sleeved with a fastening rod 132 in the connecting sleeve 131, the fastening rod 132 and the connecting sleeve 131 can be stretched or shortened as a whole. During the stretching or shortening process, the position of the grinding device 140 at the pipe end of the fastening rod 132 will change, thereby meeting the grinding operation of the pipe ends of spiral seam submerged arc welded pipes of different diameters. In addition, by providing a first connecting hole 132a, a second connecting hole 131a and a threaded groove 131b, the threaded rod 133 can be inserted into the fastening rod 132 and the connecting sleeve 131 for stable fixation, thereby ensuring the stability of the equipment during operation.

[0023] In some embodiments, a length marking scale mark 150 is provided on a side of the fastening rod 132 facing away from the rotating shaft 120. The length marking scale mark 150 extends along the axial direction of the fastening rod 132. In this embodiment of the present application, the length marking scale mark 150 is provided to mark the length, and during operation, the operator can adjust the position of the grinding device 140 according to the mark on the length marking scale mark 150.

[0024] In some embodiments, a cooling component 160 is included, comprising a water spray pipe 161. The water outlet of the water spray pipe 161 extends to the grinding device 140, and the water inlet of the water spray pipe 161 is connected to a water supply device 162 via a pipeline. In this embodiment of the present application, during operation, the water supply device 162 pumps water into the water spray pipe 161, which then sprays the water toward the grinding device 140, thereby cooling the grinding device 140 and the end of the spiral submerged arc welded pipe.

[0025] In some embodiments, a bearing ring 170 is attached to the outer periphery of the central portion of the rotating shaft 120, and multiple water spray pipes 161 are fixed to the outer wall of the bearing ring 170. This arrangement in the present embodiment provides a more secure fixation of the water spray pipes 161. Furthermore, the circular outer periphery of the bearing ring 170 facilitates the arrangement of the multiple water spray pipes 161 in a circular array, facilitating all-round water spray cooling of the polishing port.

[0026] In some embodiments, the four connecting sleeves 131 are formed by two sleeves intersecting at right angles, and the sleeves are welded to one end of the rotating disk 130. In the embodiment of the present application, through the above arrangement, the four connecting sleeves 131 are formed by two sleeves intersecting at right angles, which further improves the stability and integrity of the installation of the connecting sleeves 131, making the equipment more stable during operation, and the connecting sleeves 131 do not need to be cut additionally, which will also reduce the workload of the equipment during the production process.

[0027] In some embodiments, two opposing receiving grooves are provided on the inner sidewall of the arc-shaped groove 141a, and circular rollers 141c are hingedly connected in the receiving grooves, with the outer side of the circular rollers 141c extending into the arc-shaped groove 141a. Through the above arrangement in the embodiment of the present application, when the circular rollers 141c in the receiving grooves abut against the outer wall of the spiral submerged arc welded pipe after the grinding device 140 deviates, the inner sidewall of the receiving groove will never experience sliding friction with the outer wall of the spiral submerged arc welded pipe under the restriction of the circular rollers 141c, and the circular rollers 141c will only experience rolling friction with the outer wall of the spiral submerged arc welded pipe, causing almost no damage to the outer wall of the spiral submerged arc welded pipe, thereby further preventing wear on the outer wall of the spiral submerged arc welded pipe.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A spiral seam submerged arc welded pipe end grinding device, characterized in that: The mobile frame comprises a rotating shaft rotatably provided on the mobile frame, one end of the rotating shaft is connected to a driving device, and the other end of the rotating shaft is coaxially connected to a rotating disk; Four connecting sleeves are fixed in an annular array at one end of the rotating disk away from the rotating shaft, and the four connecting sleeves all extend radially along the rotating disk. A fastening rod is sleeved in the connecting sleeve, and a plurality of first connecting holes are provided on the fastening rod at intervals along the axial direction of the fastening rod. A second connecting hole is provided on the tube wall on one side of the top of the connecting sleeve, and a threaded groove is provided on the inner tube wall on one side of the bottom of the connecting sleeve. A threaded rod is provided between the first connecting hole, the second connecting hole and the threaded groove, and one end of the fastening rod extends to the outer end of the connecting sleeve and is connected to a grinding device; The grinding device includes a fixed block, the fixed block is provided with an arc-shaped groove running through in a horizontal direction, and a plurality of wear-resistant protrusions are provided on the inner bottom wall of the arc-shaped groove.

2. The spiral submerged arc welded pipe end grinding equipment according to claim 1, characterized in that: A length marking scale mark is provided on a side of the fastening rod away from the rotating shaft, and the length marking scale mark extends along the axial direction of the fastening rod.

3. The spiral submerged arc welded pipe end grinding equipment according to claim 1, characterized in that: It comprises a cooling component, which comprises a water spray pipe. The water outlet end of the water spray pipe extends to the polishing device, and the water inlet end of the water spray pipe is connected to a water supply device through a pipeline.

4. The spiral submerged arc welded pipe end grinding equipment according to claim 3, characterized in that: A bearing ring is externally connected to the outer periphery of the middle portion of the rotating shaft, and the plurality of water spray pipes are all fixed on the outer side wall of the bearing ring.

5. The spiral submerged arc welded pipe end grinding equipment according to claim 1, characterized in that: The four connecting sleeves are formed by two sleeves crossing at right angles, and the sleeves are welded to one end of the rotating disk.

6. The spiral submerged arc welded pipe end grinding equipment according to claim 1, characterized in that: Two opposite accommodating grooves are provided on the inner side wall of the arc-shaped groove. A circular roller is hinged in the accommodating groove, and the outer side of the circular roller extends into the arc-shaped groove.

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