CN112792658A - Pressure pipeline welding seam grinding device - Google Patents
Pressure pipeline welding seam grinding device Download PDFInfo
- Publication number
- CN112792658A CN112792658A CN202110148424.2A CN202110148424A CN112792658A CN 112792658 A CN112792658 A CN 112792658A CN 202110148424 A CN202110148424 A CN 202110148424A CN 112792658 A CN112792658 A CN 112792658A
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- Prior art keywords
- track
- pipeline
- piece
- moving
- rod
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/04—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of metal, e.g. skate blades
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention discloses a pressure pipeline weld joint polishing device, which comprises a centering positioning mechanism, a spiral feeding mechanism and a polishing head, wherein the centering positioning mechanism comprises a base, a screw feeding mechanism and a polishing head, and the polishing head comprises: the spiral feeding mechanism comprises a track piece, a driving piece and a moving piece, wherein the track piece and the driving piece are coaxially arranged, the moving piece is provided with an outer moving end and an inner moving end, and the outer moving end is matched with the spiral track and moves along the spiral track; two ends of the spiral feeding mechanism are respectively connected with two centering positioning mechanisms, each centering positioning mechanism is provided with a positioning end and used for fixing the spiral feeding mechanism on the outer side of the pipeline, and one end of the corresponding spiral feeding mechanism is concentric with the pipeline; the polishing head is connected to the inner movement end and used for polishing the outer side of the pipeline. The driving piece drives the moving piece to move along the spiral track, and after the polishing head is opened, the polishing head continuously rubs with the outer side wall of the pipeline to polish, so that the polishing machine effectively replaces manual polishing, and is high in efficiency and uniform in polishing effect.
Description
Technical Field
The invention relates to the technical field of special equipment detection, in particular to a pressure pipeline weld joint polishing device.
Background
The pressure pipeline refers to all pipelines which bear internal pressure or external pressure, and is one of the pipelines regardless of media in the pipeline, the pipeline is used for conveying, distributing, mixing, separating, discharging, metering, controlling and stopping fluid flow, and the pipeline is an assembly composed of pipes, pipe fittings, flanges, bolt connections, gaskets, valves, other components or pressed components and supporting parts.
The pressure pipeline needs to be inspected regularly, and before inspection, the welding seam and two sides need to be derusted, depainted and polished within a certain range, and the metal luster is exposed. Generally, the pipeline is manually polished, one side of the pipeline far away from a person is often difficult to polish, the manual polishing efficiency is low, and the polishing effect is not good.
Therefore, a device capable of grinding the welding seams of the pipelines is needed to replace the grinding.
Disclosure of Invention
The invention aims to overcome the technical defects and provides a pressure pipeline weld joint polishing device which is used for solving the problems that in the prior art, a weld joint is not convenient to polish and the efficiency is low.
In order to achieve the technical purpose, the technical scheme of the invention is as follows: the utility model provides a pressure pipeline welding seam grinding device, its includes centering positioning mechanism, screw feed mechanism and head of polishing, wherein: the screw feeding mechanism comprises a track piece, a driving piece and a moving piece, wherein the track piece and the driving piece are coaxially arranged, the driving piece is provided with a driving part parallel to the axis of the track piece, the track piece is provided with a screw track, the moving piece is provided with an outer moving end and an inner moving end, the outer moving end is matched with the screw track and moves along the screw track, and the outer moving end is connected with the driving part, so that when the driving piece rotates, the driving part drives the moving piece to move along the screw track, and the moving track of the inner moving end is a spiral line; two ends of the spiral feeding mechanism are respectively connected with two centering positioning mechanisms, each centering positioning mechanism is provided with a positioning end and used for fixing the spiral feeding mechanism on the outer side of the pipeline, and one end of the corresponding spiral feeding mechanism is concentric with the pipeline; the polishing head is connected to the inner movement end and used for polishing the outer side of the pipeline.
Preferably, the track member and the driving member each have at least two parts which are radially separable from or connectable to each other, such that the parts of the track member and the driving member can be enclosed and connected as a unit from outside the pipe radially inwardly of the pipe, and the track member and the driving member can be separated radially outwardly of the pipe into parts.
Preferably, the spiral track has interior slide and outer slide, and the motion piece includes connecting rod, interior gyro wheel and outer gyro wheel, and interior gyro wheel and outer gyro wheel all rotate with the connecting rod to be connected, interior gyro wheel and interior slide sliding connection, outer gyro wheel and outer slide sliding connection, interior slide and outer slide opening opposite direction to in making the connecting rod motion process, the connecting rod remains on the spiral track all the time with interior gyro wheel and outer gyro wheel junction.
Preferably, the connecting rod is provided with a sliding hole, and the sliding hole is in sliding connection with the driving part.
Preferably, the connecting rod comprises a first rod body and a second rod body, the distance between the first rod body and the second rod body is adjustable and fixedly connected, the first rod body is connected with the outer roller, and the second rod body is connected with the inner roller.
Preferably, the moving part further comprises a telescopic rod, and the telescopic rod can slide along the axial direction of the second rod body and is fixedly connected with the second rod body.
Preferably, the moving part further comprises an elastic pressing rod and an elastic part, one end of the elastic pressing rod is connected with the telescopic rod in a sliding mode, the sliding direction of the elastic pressing rod is along the axial direction of the telescopic rod, the other end of the elastic pressing rod is connected with the operating part, and the elastic part is arranged between the elastic pressing rod and the telescopic rod and used for providing elastic force for the elastic pressing rod to move inwards in the radial direction.
Preferably, the driving member has flange portions at both ends thereof, and the pressure pipe weld grinding device further comprises a plurality of positioning bearings, wherein the positioning bearings are connected to both end faces of the rail member, end faces of the positioning bearings abut against end faces of the flange portions, and circumferential side faces of the positioning bearings abut against circumferential faces of the flange portions, so that the driving member is axially limited on the rail member.
Preferably, the centering positioning mechanism comprises a plurality of positioning parts and magnetic heads which are circumferentially arranged along the track piece, one end of each positioning part is rotatably connected with the side surface of the track piece, the rotating plane of each positioning part passes through the axis of the track piece, and the other end of each positioning part is connected with the magnetic head and is used for being adsorbed on the outer side wall of the pipeline.
Compared with the prior art, the invention has the beneficial effects that: only need during the use with the track piece cover in the pipeline outside, it is fixed with pipe connection to heart positioning mechanism again, make track piece and pipeline coaxial, then the position of adjustment motion piece makes the head of polishing contradict with the pipeline lateral wall, then the driving piece drives the motion piece along spiral orbit motion, opens the head of polishing after, the head of polishing constantly rubs with the pipeline lateral wall, polishes, has replaced the people effectively and has polished, and is efficient, and the effect of polishing is even.
Drawings
FIG. 1 is a perspective view of a pressure pipe weld grinding device provided by the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a front view of a pressure pipe weld grinding device provided by the present invention;
FIG. 4 is a partial cross-sectional view of the structure at B in FIG. 3;
FIG. 5 is a perspective view of a rail member of the pressure pipe weld grinding apparatus provided by the present invention when opened;
FIG. 6 is an enlarged view of a portion of FIG. 5 at C;
FIG. 7 is a perspective view of the moving member, the driving member and the polishing head of the pressure pipe weld polishing device provided by the present invention;
FIG. 8 is a perspective view of a moving part and a polishing head of the pressure pipe weld polishing device provided by the present invention;
FIG. 9 is an enlarged view of a portion of FIG. 8 at D;
reference numerals: 1-screw feeding mechanism, 2-centering positioning mechanism, 3-grinding head, 4-positioning bearing, 11-track piece, 12-driving piece, 13-moving piece, 21-positioning end, 22-positioning piece, 23-magnetic head, 111-screw track, 121-driving part, 122-flange part, 131-outer moving end, 132-inner moving end, 133-connecting rod, 134-inner roller, 135-outer roller, 136-telescopic rod, 137-elastic rod, 138-elastic piece, 1111-inner slideway, 1112-outer slideway, 1331-first rod body, 1332-second rod body and 13321-sliding hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and fig. 2, the present embodiment provides a pressure pipeline weld grinding device, which includes a screw feeding mechanism 1, a centering positioning mechanism 2, and a grinding head 3, wherein:
with reference to fig. 1 and fig. 2, the screw feeding mechanism 1 includes a track member 11, a driving member 12 and a moving member 13, the track member 11 and the driving member 12 are coaxially disposed, the driving member 12 has a driving portion 121 parallel to an axis of the track member 11, the track member 11 has a spiral track 111, the moving member 13 has an outer moving end 131 and an inner moving end 132, the outer moving end 131 is engaged with the spiral track 111 and moves along the spiral track 111, and is connected to the driving portion 121, so that when the driving member 12 rotates, the driving portion 121 drives the moving member 13 to move along the spiral track 111, and a moving track of the inner moving end 132 is a spiral line. When the device is used, the device is only required to be sleeved on a pipeline, and after the device is coaxial with the pipeline, the driving part 12 rotates to drive the moving part 13 to move along the spiral track 111. It should be noted that the driving portion 121 corresponds to the moving member 13, and a plurality of moving members 13 and driving portions 121 may be provided to drive a plurality of sanding heads 3 to work.
Referring to fig. 4, specifically, the spiral track 111 has an inner slide 1111 and an outer slide 1112, referring to fig. 8 and 9, the moving member 13 includes a connecting rod 133, an inner roller 134 and an outer roller 135, the inner roller 134 and the outer roller 135 are both rotatably connected to the connecting rod 133, the inner roller 134 is slidably connected to the inner slide 1111, the outer roller 135 is slidably connected to the outer slide 1112, the opening directions of the inner slide 1111 and the outer slide 1112 are opposite, so that the connecting rod 133, the connecting rod 134 and the outer roller 135 are always maintained on the spiral track 111 during the movement of the connecting rod 133, the connecting rod 133 is provided with a sliding hole 13321, the sliding hole 13321 is slidably connected to the driving part 121, the connecting rod 133 slides along the driving part 121 and rotates along the spiral track 111 during the rotation of the driving part 12, and the included angle between the connecting rod 133 and the axis of the track member 11 can be maintained constant because the distance between the driving part 121 and the spiral track 111 is constant, thereby making the inner motion end 132 have a uniform spiral line in the running track and ensuring that the polishing head 3 can polish uniformly in the running process. The driving member 12 is not necessarily slidably connected to the connecting rod 133, but may be in contact therewith, and the driving member 12 may push the connecting rod 133 to rotate. In this embodiment, the opening directions of the inner slide 1111 and the outer slide 1112 are along the directions away from each other, and the minimum distance between the inner roller 134 and the side surface of the outer roller 135 is exactly the same as the distance between the inner slide 1111 and the outer slide 1112, so that the moving member 13 is always perpendicular to the tangent plane of the spiral track 111, and the track of the inner moving end 132 of the moving member 13 is also spiral. It will be readily appreciated that the opening directions of the inner runway 1111 and the outer runway 1112 may be in a direction approaching each other, and the maximum distance between the inner roller 134 and the side of the outer roller 135 is exactly the same as the distance between the inner runway 1111 and the outer runway 1112. Further, the spiral track 111 may be formed in various structures, and may not necessarily be connected to the moving member 13 in a sliding connection manner, but may be connected to the moving member 13 in a tooth-engaging manner.
Referring to fig. 8, in order to achieve the assembly of the connecting rod 133 and improve the stability of the mechanism, the connecting rod 133 includes a first rod 1331 and a second rod 1332, the first rod 1331 and the second rod 1332 are fixedly connected with each other at an adjustable distance, the first rod 1331 is connected with the outer roller 135, the second rod 1332 is connected with the inner roller 134, in this embodiment, the first rod 1331 and the second rod 1332 can be moved toward or away from each other along the axis, and then fixed by a bolt, due to the distance error after the inner slide 1111 and the outer slide 1112 are manufactured, if the inner roller 134 and the outer roller 135 are designed to be non-adjustable, the distance error between the inner slide 1111 and the outer slide 1112 and the distance error between the inner roller 134 and the outer roller 135 are larger, which affects the stability of the mechanism, therefore, the distance between the inner roller 134 and the outer roller 135 is adjustable, which can reduce the distance between the roller and the rail and improve the matching degree.
Referring to fig. 5 and 6, it should be noted that, for the installed pressure pipeline, in order to avoid various troubles in the process of detecting the welding seam, the pipeline is not detached, so the track member 11 and the driving member 12 cannot be inserted from one end of the pipeline, for this reason, in this embodiment, the track member 11 and the driving member 12 each have at least two parts which can be separated or connected in the radial direction, so that the track member 11 and the driving member 12 can surround and connect together from the outside of the pipeline along the radial direction of the pipeline, and the track member 11 and the driving member 12 can be separated into a plurality of parts along the radial direction of the pipeline. Specifically, in this embodiment, the track member 11 has two parts that can be separated from each other, one end of the two parts of the track member 11 is hinged, and the other end is fixed by using a bolt or other structures, and when the track member 11 needs to be sleeved outside the pipeline, the two parts of the track member 11 are separated and placed outside the pipeline, and then the track member 11 is closed. It should be noted that, in order to prevent the track member 11 from being jammed by the driving member 12 when being opened, the separation plane of the driving member 12 should exactly coincide with the separation plane of the track member 11, and therefore, when the track member 11 is separated, the driving member 12 should be rotated to a corresponding angle, so that the separation plane of the track member 11 corresponds to the separation plane of the driving member 12, and therefore, the number of separated portions of the driving member 12 should be no less than the number of separated portions of the track member 11, and the number of the driving member 12 is also two in this embodiment. The driving member 12 is typically driven by a motor, so that a toothed surface is provided on one side of the driving member 12 to engage with a driving shaft of the motor, and the motor is fixedly connected to the outside of the rail member 11 (the motor is not shown), where the toothed surface should also be of a separable structure.
In addition, the track member 11 is formed by a plurality of separated parts, however, the spiral track 111 must be complete when the track member 11 is connected, so the spiral track 111 should also be formed by a plurality of sections of curved surfaces, in order to ensure the strength of each section of spiral track 111, various connecting rib structures are added between each end track, and meanwhile, the arrangement of the connecting ribs cannot interfere with the movement of the moving member 13, so the connecting ribs are generally connected to the parts of the outer side of the track member 11 which do not interfere with the moving member 13.
Two ends of the spiral feeding mechanism 1 are respectively connected with two centering positioning mechanisms 2, the centering positioning mechanisms 2 are provided with positioning ends 21, and the positioning ends 21 are used for fixing the spiral feeding mechanism 1 on the outer side of the pipeline and enabling one end of the pipeline to be concentric with the spiral feeding mechanism 1.
Centering positioning mechanism 2 includes a plurality of setting elements 22 and magnetic head 23 along 11 circumference arrangements of track spare, and setting element 22 one end is rotated with 11 sides of track spare and is connected, and its rotation plane is through track spare 11 axes, and the setting element 22 other end is connected with magnetic head 23 for adsorb in the pipeline lateral wall, and setting element 22 is a stock, and every setting element 22 length is the same, only need during the use to support a plurality of setting elements 22 and press in the pipeline outside, make magnetic head 23 paste the pipeline outside again can. The magnetic head 23 can adopt an electromagnet to conveniently adjust the position of the magnetic head 23, and the positioning member 22 can rotate along the track member 11, so that the centering and positioning mechanism 2 can be suitable for pipelines with various pipe diameters.
The sanding head 3 is connected to the inner motion end 132 for sanding the pipe. In this embodiment, the polishing head 3 is used for polishing the surface of the pipeline, so a polisher or other devices can be used, in order to ensure that the outer side of the pipeline does not have a part which cannot be polished, the width of the polishing head 3 along the axial direction of the pipeline should not be smaller than the lead of the spiral track 111, so that a rectangular polishing belt is used here, the motor drives the polishing belt to rotate at a high speed, and friction is generated when the polishing belt is in contact with the outer side wall of the pipeline, so that the outer side wall of the pipeline is polished to remove impurities on the watch case.
As a preferred embodiment, the driving member 12 has flange portions 122 at two ends thereof, the pressure pipe weld grinding device further includes a plurality of positioning bearings 4, the positioning bearings 4 are respectively connected to two end surfaces of the rail member 11, end surfaces of the positioning bearings 4 abut against end surfaces of the flange portions 122, circumferential side surfaces of the positioning bearings 4 abut against circumferential surfaces of the flange portions 122 to axially position the driving member 12 on the rail member 11, the driving member 12 is axially and radially positioned on the rail member 11 by the positioning bearings 4, when the device is installed, at least one flange portion 122 is detachable and extends into the rail member 11 from one end, and the other end is connected to the flange portion 122, and if the driving member 12 and the rail member 11 are of the above-mentioned separate structure, the positioning bearings 4 can well position separate portions of the driving member 12 after the driving member 12 is closed, thereby ensuring integrity, and preventing displacement of the separated portions of the driving member 12 and the rail member, the parting plane may also be provided with cooperating structures, such as lands and grooves, intermeshing teeth flanks, etc.
In a preferred embodiment, the movement member 13 further includes a telescopic rod 136, and the telescopic rod 136 can slide axially along the second rod 1332 and is fixedly connected to the second rod 1332. The telescopic rod 136 is used for adjusting the distance from the polishing head 3 to the axis of the track member 11 so as to be suitable for pipelines with various pipe diameters.
As a preferred embodiment, the pressure pipe weld grinding device further includes an elastic member 138, the moving member 13 further includes an elastic rod 137, one end of the elastic rod 137 is slidably connected to the telescopic rod 136, the sliding direction is along the axial direction of the telescopic rod 136, the other end of the elastic rod 137 is connected to the operating member, and the elastic member 138 is disposed between the elastic rod 137 and the telescopic rod 136 and is used for providing an elastic force for the elastic rod 137 to move radially inward. Here, the elastic member 138 is a spring, and its function is to press the polishing head 3, that is, the polishing head 3 presses against the outer side of the pipeline with a certain pressure, so as to prevent the failure caused by the fact that the polishing head 3 cannot contact the outer side of the pipeline due to an error or the polishing head 3 is stuck to the outer side of the pipeline during rigid connection.
The working principle of the pressure pipeline weld grinding device provided by the invention is briefly described as follows: during the use with track spare 11 and driving piece 12 cover on the pipeline, if the pipeline has been installed, need to open track spare 11 and driving piece 12 and separate into a plurality of parts, make a plurality of parts encircle in the pipeline outside again, close track spare 11 and driving piece 12, then adjustment centering positioning mechanism 2, make track spare 11 fix on the pipeline, and keep track spare 11 and pipeline coaxial, the position of adjustment telescopic link 136, make the pressure that polishes 3 and press at the pipeline to suitable degree, then start motor and polish 3, motor drive driving piece 12 rotates, drive portion 121 drives the motion piece 13 and rotates, move along spiral track 111 simultaneously, polish 3 along a helix motion, thereby guarantee that polish 3 evenly polishes the pipeline outside.
In summary, according to the pressure pipeline weld polishing device provided by the invention, when in use, the track piece is sleeved outside the pipeline, the centering positioning mechanism is fixedly connected with the pipeline, so that the track piece is coaxial with the pipeline, then the position of the moving piece is adjusted, so that the polishing head is abutted against the outer side wall of the pipeline, then the driving piece drives the moving piece to move along the spiral track, and after the polishing head is started, the polishing head continuously rubs with the outer side wall of the pipeline to polish, so that the polishing device effectively replaces manual polishing, and is high in efficiency and uniform in polishing effect. It should be noted that the pressure pipeline weld grinding device provided by the invention is not limited in the type of the pressure pipeline weld, and can be used for grinding pressure pipelines with various types of welds, such as circular welds, spiral welds, axial welds, and the like.
The above embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
Claims (9)
1. The utility model provides a pressure pipeline welding seam grinding device encircles the pipeline motion and polishes the pipeline outside, its characterized in that, including centering positioning mechanism, screw feed mechanism and polishing head, wherein:
the screw feeding mechanism comprises a track piece, a driving piece and a moving piece, wherein the track piece and the driving piece are coaxially arranged, the driving piece is provided with a driving part parallel to the axis of the track piece, the track piece is provided with a screw track, the moving piece is provided with an outer moving end and an inner moving end, the outer moving end is matched with the screw track and moves along the screw track, and is connected with the driving part, so that when the driving piece rotates, the driving part drives the moving piece to move along the screw track, and the moving track of the inner moving end is a spiral line;
the two ends of the spiral feeding mechanism are respectively connected with the two centering positioning mechanisms, and the centering positioning mechanisms are provided with positioning ends which are used for fixing the spiral feeding mechanism on the outer side of the pipeline and enabling one end of the corresponding spiral feeding mechanism to be concentric with the pipeline;
the polishing head is connected to the inner movement end and used for polishing the outer side of the pipeline.
2. A pressure pipe weld grinding apparatus as claimed in claim 1, wherein the rail member and the drive member each have at least two parts which are radially separable or connectable such that the parts of the rail member and the drive member surround and connect as a unit from outside the pipe radially inwardly of the pipe and such that the rail member and the drive member are radially outwardly separable into parts along the pipe.
3. The pressure pipeline welding seam grinding device according to claim 1, wherein the spiral track has an inner slide and an outer slide, the moving member includes a connecting rod, an inner roller and an outer roller, the inner roller and the outer roller are both rotatably connected to the connecting rod, the inner roller is slidably connected to the inner slide, the outer roller is slidably connected to the outer slide, the inner slide is opposite to the opening direction of the outer slide, so that the connecting rod is always kept at the connection with the inner roller and the outer roller on the spiral track during the movement of the connecting rod.
4. The pressure pipeline weld grinding device as claimed in claim 3, wherein the connecting rod is provided with a sliding hole, and the sliding hole is connected with the driving part in a sliding manner.
5. The pressure pipe weld grinding device as claimed in claim 3, wherein the connecting rod comprises a first rod body and a second rod body, the first rod body and the second rod body are fixedly connected at an adjustable distance, the first rod body is connected with the outer roller, and the second rod body is connected with the inner roller.
6. A pressure pipe weld grinding device according to claim 5, wherein the moving member further comprises a telescopic rod, and the telescopic rod can slide axially along the second rod body and is fixedly connected with the second rod body.
7. The pressure pipe weld grinding device according to claim 6, wherein the moving member further comprises a resilient rod and an elastic member, one end of the resilient rod is slidably connected with the telescopic rod, the sliding direction of the resilient rod is along the axial direction of the telescopic rod, the other end of the resilient rod is connected with the operating member, and the elastic member is arranged between the resilient rod and the telescopic rod and used for providing elastic force for the resilient rod to move inwards in the radial direction.
8. The pressure pipeline weld grinding device according to claim 1, wherein the driving member has flange portions at two ends thereof, and the pressure pipeline weld grinding device further comprises a plurality of positioning bearings, the positioning bearings are connected to two end faces of the rail member respectively, end faces of the positioning bearings are abutted to end faces of the flange portions, and peripheral side faces of the positioning bearings are abutted to peripheral faces of the flange portions so as to axially limit the driving member on the rail member.
9. The pressure pipeline weld grinding device according to claim 1, wherein the centering positioning mechanism comprises a plurality of positioning members and magnetic heads which are circumferentially arranged along the rail member, one end of each positioning member is rotatably connected with the side surface of the rail member, the rotating plane of each positioning member passes through the axis of the rail member, and the other end of each positioning member is connected with the magnetic heads and is used for being adsorbed on the outer side wall of the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110148424.2A CN112792658B (en) | 2021-02-03 | 2021-02-03 | Pressure pipeline welding seam grinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110148424.2A CN112792658B (en) | 2021-02-03 | 2021-02-03 | Pressure pipeline welding seam grinding device |
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| CN112792658A true CN112792658A (en) | 2021-05-14 |
| CN112792658B CN112792658B (en) | 2022-01-11 |
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| CN110919490A (en) * | 2019-12-09 | 2020-03-27 | 陈小风 | Welding post-treatment process for laying connection of long-distance oil pipeline system |
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| CN103465143A (en) * | 2013-10-10 | 2013-12-25 | 国家电网公司 | Damage-free detection special pipeline automatic oxide skin polishing device and method thereof |
| KR20150113568A (en) * | 2014-03-31 | 2015-10-08 | 주식회사 스틸플라워 | Steel pipe suporting apparatus for back gouging machine |
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| CN111716194A (en) * | 2020-07-20 | 2020-09-29 | 安徽金威管业有限公司 | Welding seam processing equipment |
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| CN112792658B (en) | 2022-01-11 |
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