CN210115616U - Device for monitoring welding position of inner welding seam of spiral welded pipe - Google Patents
Device for monitoring welding position of inner welding seam of spiral welded pipe Download PDFInfo
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- CN210115616U CN210115616U CN201920867330.9U CN201920867330U CN210115616U CN 210115616 U CN210115616 U CN 210115616U CN 201920867330 U CN201920867330 U CN 201920867330U CN 210115616 U CN210115616 U CN 210115616U
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Abstract
The utility model belongs to the technical field of the spiral pipe welding, concretely relates to weld joint welding position monitoring devices in spiral welded pipe. Including the erection support, be provided with the camera on the erection support, the camera front end of camera is provided with leading through-hole, is located in the camera of camera the rear of leading through-hole is provided with two-sided convex mirror, and the cover is equipped with first cast screw thread regulation distance component and second cast screw thread regulation distance component in order between the camera lens installation internal thread district of two-sided convex mirror and camera, and the camera has the display through cable junction. The visual field is contracted through the front through hole, and the luminous object can be seen even under 4 lux, so that the selective transmission of the welding seam image is ensured; the double-sided convex mirror plays a role in focusing and transmitting a correction information image in parallel; the camera is selected to shoot the thermal image area on the back of the inner welding seam through the cable, the image is clear, the operator can observe clearly, the visual fatigue is small, and the quality defects of steel pipe burnthrough and the like can not occur.
Description
Technical Field
The utility model belongs to the technical field of the spiral pipe welding, concretely relates to weld joint welding position monitoring devices in spiral welded pipe.
Background
In the welding of the spiral seam submerged arc welded pipe, the inner welding and the outer welding are continuously welded at the same time. The inner welding is welded at the position about 6 points of the starting position of the first pitch after the steel pipe is formed, the outer welding is welded at the position about 12 points of the second pitch or the third pitch, the inner welding gun is welded inside the steel pipe, an operator can monitor and track whether an inner welding molten pool is on a welding line (a gap formed by forming and meshing the steel pipe) or not by observing a red line on the back surface (outside the pipe) of the welding inner welding seam, and if the center of the inner welding molten pool deviates from the center of a welding seam gap, the deviation can be corrected by operating a welding head moving device. The inner welding is monitored and tracked according to the red line on the back surface (outside the pipe) of the inner welding seam, and the welding deviation of the inner welding seam is sometimes caused by untimely judgment or visual error due to the influence of the light intensity of the red line on the back surface (outside the pipe) of the inner welding seam, the observation visual angle of an operator and the visual fatigue degree.
Monitoring and tracking of the inner weld has been a concern. In the welding of low-grade steel and thin-wall steel pipes, an operator can monitor the inner welding by observing the red line on the back surface of the inner welding seam (outside the pipe). However, with the development of spiral welded pipes in the direction of high steel grade, large caliber and large wall thickness, the requirement of monitoring whether the inner welding molten pool is in the center of the weld gap by observing the red line cannot be met because: (1) the plate is too thick, and the welded red line becomes very dark and is not easy to observe; (2) when the edge milling grooves on the two sides of the steel belt are not consistent, the heat conduction is faster when the side with the thinner groove is welded, so that the center of a red area of a just-welded inner welding line outside the pipe is not coincident with the center of a welding line gap; (3) in the cases (1) and (2), the welding current can be increased, the linear energy is increased, and the red line keeps certain brightness, but the surface of the inner welding line is irregular, so that when the steel pipe is formed unstably and the meshing gap of the formed steel pipe is increased, the light leakage is easy to burn through, and the quality defects such as burn-through are caused.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in overcoming the not enough of prior art, provides a spiral welded pipe inner weld welded position monitoring devices for whether spiral welded pipe inner weld position is accurate detection and tracking, effectively prevents that inner weld welds partially, improves operator's travelling comfort.
The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a spiral welded tube internal weld seam welding position monitoring devices, includes the erection support, be provided with the camera on the erection support, the camera front end of camera is provided with leading through-hole, be located in the camera of camera the rear of leading through-hole is provided with two-sided convex mirror, two-sided convex mirror with the cover is equipped with first cast screw thread adjusting distance component and second cast screw thread adjusting distance component in order between the camera lens installation internal thread district of camera, the camera has the display through cable junction.
Further, the first tubular thread adjusting distance member and the second tubular thread adjusting distance member are used for adjusting the focal length of the camera.
Further, the first tubular thread adjusting distance member and the second tubular thread adjusting distance member have a length ranging from 3.5 to 5.0 cm.
Furthermore, the double-sided convex mirror is a double-sided convex mirror with different front and back focal lengths.
Further, leading through-hole includes the hexagon body, be provided with the round hole on the hexagon body.
Further, the aperture of the front through hole is 0.5-1.5 cm.
Further, the camera is a high definition camera.
The utility model has the advantages that:
1. the utility model has the advantages that the visual field is contracted through the round hole of the front through hole, the weld line area after internal welding is directionally selected to the front through hole, the front through hole forms a dark box, the luminous object can be still seen under 4 lux by gating, and the selective transmission of the weld image is ensured;
2. the utility model is provided with a double-sided convex mirror at the rear of the preposed through hole, and the double-sided convex mirror plays the role of focusing and transmitting correction information images in parallel;
3. the utility model discloses an on the cable was selected and the interior welding seam back (outside of tubes) heat affected zone conveying that shoots to the display screen with the camera, the image was clear, through pipe thread adjusting distance component adjustment image to suitable enlarged proportion, the operator observes clearly, and visual fatigue is little, welding seam quality defects such as steel pipe burn-through can not appear.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a device for monitoring a welding position of a weld joint in a spiral welded pipe according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of the front through hole in FIG. 1;
reference numerals:
1-front through hole; 11-a hexagonal body; 12-a circular hole; 2-double-sided convex mirror; 3-a first tubular thread adjusting distance member; 4-a second tubular thread distance adjustment member; 5, mounting a support; 6-a camera; 7-a cable; 8-display.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Examples
As shown in fig. 1-2, the utility model provides a weld joint welding position monitoring devices in spiral welded pipe, including installing support 5, be provided with camera 6 on the installing support 5, camera front end of camera 6 is provided with leading through-hole 1, and leading through-hole 1 includes hexagon body 11, be provided with round hole 12 on the hexagon body 11, lie in the camera of camera 6 the rear of leading through-hole 1 is provided with two-sided convex mirror 2, two-sided convex mirror 2 with the cover is equipped with first cast screw thread adjusting distance component 3 and second cast screw thread adjusting distance component 4 in order between the camera lens installation internal thread district of camera 6, camera 6 is connected with display 8 through cable 7.
Further, the first and second tubular-type thread adjusting distance members 3 and 4 are used to adjust the focal length of the camera 6.
Further, the first tubular thread adjusting distance member 3 and the second tubular thread adjusting distance member 4 have a length ranging from 3.5 to 5.0 cm.
Further, the double-sided convex mirror 2 is a double-sided convex mirror with different front and back focal lengths.
Further, the aperture of the round hole 12 of the front through hole 1 is 0.5-1.5 cm.
Further, the camera 6 is a high definition camera.
When the device is used specifically, the visual field is contracted through the round hole 12 of the front through hole 1, the welding line area on the back of the inner welding line (outside the tube) is directionally selected to reach the double-sided convex mirror 2 (the front and back focal lengths are different) behind the front through hole 1, the high-definition camera 6 is arranged behind the double-sided convex mirror 2, the first and second tubular thread distance adjusting components 3 and 4 which are 3.5-5.0cm long are arranged between the double-sided convex mirror 2 and the light sensitivity of the camera 6, and the tubular thread distance adjusting components 3 and 4 are used for focusing, so that the video definition of the camera 6 is adjustable.
The television signal of the camera 6 is connected to a display 8 through a video cable 7, the image information of the welding seam heat affected zone on the back of the inner welding seam (outside the pipe) is displayed on the screen of the display 8, the temperature of the welding seam line on the back of the center of the molten pool is the highest, the corresponding image on the screen is a brighter tubular cylindrical block image, the welding seam gap is taken as the center, the temperature of steel plates on the two sides of the welding seam gap is continuously reduced along with the change of the distance from the center, and the image is displayed as a symmetrical gradient gradually-dark image. Whether a block image of the center of the tubular cylinder (thermal imaging of the molten pool on the welding seam gap) is formed on a screen or not and the change of the symmetry degree are used for judging the deviation of the inner welding molten pool on the center of the welding seam gap in the steel pipe and correspondingly adjusting the deviation.
The mount 5 is used to adjust the camera height and image display angle of the camera 6.
The utility model is suitable for a spiral welded tube field of making, interior welding seam back thermal imaging image information is reliable, and feedback welding situation is timely, and adjustment early warning time is early, and image amplification proportion is suitable, observes clearly, and visual fatigue is little, reduces operator intensity of labour.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (7)
1. The utility model provides a weld joint welding position monitoring devices in spiral welded pipe, includes the erection support, be provided with camera, its characterized in that on the erection support: the camera front end of camera is provided with leading through-hole, be located in the camera of camera the rear of leading through-hole is provided with two-sided convex mirror, two-sided convex mirror with the cover is equipped with first cast screw thread adjusting distance component and second cast screw thread adjusting distance component in order between the camera lens installation internal thread district of camera, the camera has the display through cable junction.
2. The apparatus for monitoring the weld position in a spirally welded tube according to claim 1, wherein: the first tubular thread distance adjusting member and the second tubular thread distance adjusting member are used for adjusting the focal length of the camera.
3. The apparatus for monitoring the weld position in a spirally welded tube according to claim 2, wherein: the length range of the first tubular thread distance adjusting component and the second tubular thread distance adjusting component is 3.5-5.0 cm.
4. A weld joint welding position monitoring apparatus in a spiral welded pipe according to any one of claims 2 or 3, characterized in that: the double-sided convex mirror is a double-sided convex mirror with different front and back focal lengths.
5. The apparatus for monitoring the weld position in a spirally welded tube according to claim 4, wherein: the front through hole comprises a hexagonal body, and a round hole is formed in the hexagonal body.
6. The apparatus for monitoring the weld position in a spirally welded tube according to claim 5, wherein: the aperture of the round hole of the front through hole is 0.5-1.5 cm.
7. The apparatus for monitoring the weld position in a spirally welded tube according to claim 6, wherein: the camera is a high definition camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920867330.9U CN210115616U (en) | 2019-06-10 | 2019-06-10 | Device for monitoring welding position of inner welding seam of spiral welded pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920867330.9U CN210115616U (en) | 2019-06-10 | 2019-06-10 | Device for monitoring welding position of inner welding seam of spiral welded pipe |
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| Publication Number | Publication Date |
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| CN210115616U true CN210115616U (en) | 2020-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920867330.9U Active CN210115616U (en) | 2019-06-10 | 2019-06-10 | Device for monitoring welding position of inner welding seam of spiral welded pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110076491A (en) * | 2019-06-10 | 2019-08-02 | 江苏通宇钢管集团有限公司 | A kind of spiral welded pipe inside weld welding position monitoring arrangement |
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2019
- 2019-06-10 CN CN201920867330.9U patent/CN210115616U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110076491A (en) * | 2019-06-10 | 2019-08-02 | 江苏通宇钢管集团有限公司 | A kind of spiral welded pipe inside weld welding position monitoring arrangement |
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