CN202539771U - Tracking device for internal welding of spiral steel pipe - Google Patents
Tracking device for internal welding of spiral steel pipe Download PDFInfo
- Publication number
- CN202539771U CN202539771U CN2012200029152U CN201220002915U CN202539771U CN 202539771 U CN202539771 U CN 202539771U CN 2012200029152 U CN2012200029152 U CN 2012200029152U CN 201220002915 U CN201220002915 U CN 201220002915U CN 202539771 U CN202539771 U CN 202539771U
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- steel pipe
- spiral steel
- tracking
- welding
- slide unit
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Abstract
The utility model provides a tracking device for the internal welding of a spiral steel pipe, which belongs to the technical field of the spiral steel pipe welding device. The tracking device for the internal welding of the spiral steel pipe aims to solve the technical problems of low welding tracking precision, inconvenience in operation and the like because the type of tracking device is completely arranged in the spiral steel pipe in the prior art. The tracking device for the internal welding of the spiral steel pipe mainly comprises a laser visual sensing head (5) and an external tracking sliding table (6), wherein the laser visual sensing head (5) is arranged on the outer side of a spiral steel pipe (3); the external tracking sliding table (6) is connected with the laser visual sensing head (5); a control system (7) is simultaneously connected with an internal tracking sliding table (2) and the external tracking sliding table (6); and the two sliding tables are always kept on the consistent position. The tracking device disclosed by the utility model is suitable for the tracking welding of spiral steel pipes of various diameters, including the spiral steel pipe of the small diameter.
Description
Technical field
The tracking means of welding belongs to spiral steel pipe welder technical field in a kind of spiral steel pipe that the present invention proposes, and specially refers to and welds tracking means accurately in the large-caliber spiral steel pipe.
Background technology
The large-caliber spiral pipe is produced welding technique at present has one-step method welding, the preparatory astute and able welding of one-step method, the preparatory astute and able welding of two step method, and wherein the preparatory astute and able technology of two step method is a state-of-the-art technology during the major diameter helix tube is produced in the world at present.
The welding of helical tubes method, the preparatory astute and able welding of one-step method are steel band moulding on the three-roll formation machine, carry out continuous welding inside weld and outside weld with submerged-arc welding simultaneously.
The preparatory astute and able welding of helix tube two step method is divided into prewelding and astute and able two procedures.Prewelding is the first step that preparatory astute and able method is produced helix tube, that is to say that steel band carries out continuous prewelding welding with the internal cut of high-speed gas protection weldering (MAG) earlier in the moulding on the three-roll formation machine.In prewelding, cut into specific length with the steel pipe of CUT after with prewelding afterwards, again the prewelding steel pipe being transported to many capable and vigorous production lines, to carry out inside and outside multifibres submerged arc astute and able.
In the spiral steel pipe production process; Owing to the welding cut moulding of the spiral steel pipe that roll bending exists that crescent moon is curved, the roll bending working width changes, caliber size variation and other reason can cause processing has a small skew to the left or to the right with respect to desirable helix; Therefore; Must take certain measure during the spiral steel pipe welding, make moving of welding gun consistent with the groove track spiral steel pipe of seam track and spiral steel pipe reality.
At present in helix tube welding is produced, consistent for bevel for welding track in the movement locus that makes this welding gun and the spiral steel pipe, tracking means is set in spiral steel pipe usually.
There is following problem in this tracking means that in spiral steel pipe, is provided with in welding is produced:
1. in the astute and able operation of the preparatory astute and able production inside weld of spiral steel pipe two step method, spiral steel pipe adopts two or three wire bonds to connect more, and laser-vision sensing head installation site is influenced by the welding gun volume, and far away with the position distance that will weld, tracking accuracy is low, and is poor in real time.
2. in the astute and able operation of the preparatory astute and able production of spiral steel pipe two step method; Inside weld has carried out prewelding at last welding sequence; It is irregular trapezoidal to cause the original regular triangle of welding bead groove profile to become the bottom surface, and the weld groove shape is inconsistent, and the discernible coverage of tracker diminishes; Quality of scanning is poor, and tracking accuracy is low.
3. the laser-vision sensing head is in steel duct, and temperature is high, and dust is big, the heat radiation difficulty, and running environment is poor.
4. the laser-vision sensing head is installed on the welding gun in the spiral steel pipe, has increased the volume of welder, makes the interior welding of small-bore spiral steel pipe become very difficult.
Summary of the invention
Tracking device for welding is arranged on the problem of bringing in the spiral steel pipe in the spiral steel pipe in order to overcome in the background technology, and the present invention proposes the new tracking means of welding in a kind of helix tube.
This new tracking means is provided with mainly and comprises:
1. the tracking means of the interior welding of spiral steel pipe is characterized in that,
1). welding gun 4, built-in tracking slide unit 2 and welding arm 1 are linked in sequence, and this three member all is arranged within the helix tube 3;
2). laser-vision sensing head 5 in the arranged outside of spiral steel pipe 3, connected external tracking slide unit 6, the control system 7 external through lead 8 and this links to each other;
3). control system 7 same process leads 8 are connected with built-in tracking slide unit 2;
4). built-in tracking slide unit (2) is in the position that is consistent all the time with external tracking slide unit 6.
2. in the tracking means that in above-mentioned spiral steel pipe, welds, be connected through control system 7 with external tracking slide unit 6 by the built-in tracking slide unit 2 of driven by servomotor.
Compared with prior art, spiral steel pipe of the present invention is by the poor effect of having of tracking device for welding:
1) laser-vision sensing head 5 and external tracking slide unit 6 all are placed in the outside of spiral steel pipe 3, and no spatial constraints and interference can improve tracking accuracy and real-time near the scanning of bevel for welding position;
2) the outside weld groove of laser-vision sensing head scanning regular shape, the bevel for welding shape is consistent, and the discernible coverage of laser-vision sensing head is bigger, and identification has improved the weld joint tracking precision easily.
3) the laser-vision sensing head is placed in the spiral steel pipe outside, and dust is little, and the tracker heat radiation is convenient, has improved the working environment of tracker.
4) the laser-vision sensing head is placed in the steel pipe outside, installs easy to adjust.
Description of drawings
The sketch map of the tracking means of a kind of spiral steel pipe welding that Fig. 1 the present invention proposes;
Fig. 2 Fig. 1 I place zoomed-in view.
The specific embodiment
Fig. 1 and Fig. 2 have represented the tracking means and the sketch map of the interior welding of a kind of spiral steel pipe that the present invention proposes.
Outer within it inside weld groove 10 and the outside weld groove 11 of being processed into of the wall thickness direction of spiral steel pipe 3.
On weld seam internal groove 10, also have prewelding seam 9, there is laser-vision sensing head scanning laser beam 12 below of weld groove 11 outside.
The working procedure of the tracking means of welding is following in the helix tube of the present invention:
Be arranged on scanning laser beam 12 that the laser-vision sensing head 5 in helix tube 3 outsides sends and can confirm the accurate position of the outside weld groove 11 of spiral steel pipe 3; This signal input control system 7; Control system 7 sends instruction makes built-in tracking slide unit 2 in spiral steel pipe 3, move and 10 welding of inside weld groove together with welding welding-gun 4; External tracking slide unit 6 is consistent with built-in tracking slide unit 2 motions; Thereby the movement locus that can reach welding gun 4 with because the track of the actual groove 10 of inside weld of the spiral steel pipe 3 that factors such as processing form is consistent, I can avoid the inside weld of welding gun 4 formation not overlap with the bevel for welding actual shifts fully like this.
Claims (2)
1. the tracking means of the interior welding of spiral steel pipe is characterized in that,
1). welding gun (4), built-in tracking slide unit (2) and welding arm (1) are linked in sequence, and this three member all is arranged within the spiral steel pipe (3);
2). laser-vision sensing head (5) in the arranged outside of spiral steel pipe (3), connected external tracking slide unit (6) links to each other with this external control system (7) through lead (8);
3). control system (7) passes through lead (8) equally and is connected with built-in tracking slide unit (2);
4). built-in tracking slide unit (2) is in the position that is consistent all the time with external tracking slide unit (6).
2. the tracking means of welding is characterized in that in the spiral steel pipe according to claim 1, is connected through control system (7) with external tracking slide unit (6) by the built-in tracking slide unit (2) of driven by servomotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200029152U CN202539771U (en) | 2012-01-05 | 2012-01-05 | Tracking device for internal welding of spiral steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200029152U CN202539771U (en) | 2012-01-05 | 2012-01-05 | Tracking device for internal welding of spiral steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202539771U true CN202539771U (en) | 2012-11-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200029152U Expired - Fee Related CN202539771U (en) | 2012-01-05 | 2012-01-05 | Tracking device for internal welding of spiral steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202539771U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345228A (en) * | 2015-12-01 | 2016-02-24 | 中国石油集团渤海石油装备制造有限公司 | Device for automatic tracking welding point during welding process of spiral welding tube |
-
2012
- 2012-01-05 CN CN2012200029152U patent/CN202539771U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345228A (en) * | 2015-12-01 | 2016-02-24 | 中国石油集团渤海石油装备制造有限公司 | Device for automatic tracking welding point during welding process of spiral welding tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20190105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |