CA2578308A1 - Apparatus for coating a pipe surface - Google Patents
Apparatus for coating a pipe surface Download PDFInfo
- Publication number
- CA2578308A1 CA2578308A1 CA 2578308 CA2578308A CA2578308A1 CA 2578308 A1 CA2578308 A1 CA 2578308A1 CA 2578308 CA2578308 CA 2578308 CA 2578308 A CA2578308 A CA 2578308A CA 2578308 A1 CA2578308 A1 CA 2578308A1
- Authority
- CA
- Canada
- Prior art keywords
- head
- support rod
- carriage
- pipe
- coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
A wear resistant coating is applied on an elbow or S-bend by weld beads applied along a pipe. A rectangular support rod is attached inside the pipe by connectors so that wheels of the carriage are guided on the corners to maintain a fixed orientation relative to the support rod. A three axis robot arm carries an electric welding head so as to be able to dynamically adjust the head both angularly and radially. A welding wire is pulled to the head by a feeding system on the carriage.
The weld parameters including a predetermined wire stick out and angle of wire attack are controlled. A drive motor carried by a drive carriage propels the drive carriage longitudinally along the support rod with a series of intermediate carriages.
The weld parameters including a predetermined wire stick out and angle of wire attack are controlled. A drive motor carried by a drive carriage propels the drive carriage longitudinally along the support rod with a series of intermediate carriages.
Claims (25)
1. An apparatus for coating an interior surface of a pipe, said apparatus comprising:
a support rod arranged to extend along the interior of the pipe at a position at or parallel to a longitudinal axis of the pipe;
an operating carriage mounted on the support rod for movement therealong;
the support rod and the operating carriage having cooperating elements which maintain the operating carriage at a fixed rotational orientation relative to said support rod;
a coating head for coating the interior surface of the pipe from a supply of a coating material;
a head drive system carried by the operating carriage for moving the coating head relative to the operating carriage in directions both angularly around and radially of the support rod; and a carriage drive system for driving the operating carriage longitudinally along said support rod;
wherein the head drive system comprises a multi-axis robotic arm able to dynamically adjust the head relative to the operating carriage both angularly and radially.
a support rod arranged to extend along the interior of the pipe at a position at or parallel to a longitudinal axis of the pipe;
an operating carriage mounted on the support rod for movement therealong;
the support rod and the operating carriage having cooperating elements which maintain the operating carriage at a fixed rotational orientation relative to said support rod;
a coating head for coating the interior surface of the pipe from a supply of a coating material;
a head drive system carried by the operating carriage for moving the coating head relative to the operating carriage in directions both angularly around and radially of the support rod; and a carriage drive system for driving the operating carriage longitudinally along said support rod;
wherein the head drive system comprises a multi-axis robotic arm able to dynamically adjust the head relative to the operating carriage both angularly and radially.
2. ~The apparatus according to Claim 1 wherein the head drive system is PLC controlled.
3. The apparatus according to Claim 1 or 2 wherein the head is an electrical welding head and the head drive system maintains a preset electrical stick-out relative to the pipe surface as the distance of the surface from the carriage varies.
4. The apparatus according to Claim 3 wherein the head drive system maintains a preset electrical stick-out by detecting variations in welding parameters.
5. The apparatus according to any one of Claims 1 to 4 wherein the head is an electrical welding head and wherein there is provided a control system for controlling the head drive system and the carriage drive system able to program in all welding parameters including wire feed speed, amperage, arc voltage, torch travel speed, electrical stick-out and bead overlap.
6. The apparatus according to any one of Claims 1 to 5 wherein the support rod is carried within the pipe by at least one connection member connected between the rod and the pipe.
7. The apparatus according to Claim 6 wherein the at least one connection member comprises a series of spacer straps.
8. The apparatus according to any one of Claims 1 to 7 wherein the multi-axis robotic arm comprises a three parallel axis system including a shoulder axis connected to the carriage, an elbow axis and a wrist axis connected to the head with a pair of arms between the shoulder axis and the elbow axis and between the elbow axis and the wrist axis.
9. The apparatus according to Claim 8 wherein the shoulder pivot axis is located in the center of the pipe to allow for smooth, easy, and accurate angular placement of the head.
10. The apparatus according to any one of Claims 1 to 9 wherein the support rod is rectangular in cross-section to define comers and the carriages include guide wheels supporting the carriages on the corners of the support rod.
11. The apparatus according to claim 10 wherein the guide wheels are arranged in opposed pairs at the front and rear of the carriage.
12. The apparatus according to any one of Claims 1 to 11 wherein the head is an electrical welding head and a wire feeder is mounted just behind the head, therefore minimizing the distance over which the wire is pushed to the head.
13. The apparatus according to any one of Claims 1 to 12 wherein the head is an electrical welding head and a wire feeder is a pull style wire feeder located close to the welding head.
14. The apparatus according to any one of Claims 1 to 13 wherein the head is an electrical welding head and a wire feeder includes roller wire guides at the angle transition between the head which extends radially and an axially extending liner.
15. An apparatus for coating an interior surface of a pipe, said apparatus comprising:
a support rod arranged to extend along the interior of the pipe at a position at or parallel to a longitudinal axis of the pipe;
an operating carriage mounted on the support rod for movement therealong;
the support rod and the operating carriage having cooperating elements which maintain the operating carriage at a fixed rotational orientation relative to said support rod;
a coating head for coating the interior surface of the pipe from a supply of a coating material;
a head drive system carried by the operating carriage for moving the coating head relative to the operating carriage in directions both angularly around and radially of the support rod; and a carriage drive system for driving the operating carriage longitudinally along said support rod;
wherein the head is an electrical welding head and the head drive system maintains a preset electrical stick-out relative to the pipe surface as the distance of the surface from the carriage varies.
a support rod arranged to extend along the interior of the pipe at a position at or parallel to a longitudinal axis of the pipe;
an operating carriage mounted on the support rod for movement therealong;
the support rod and the operating carriage having cooperating elements which maintain the operating carriage at a fixed rotational orientation relative to said support rod;
a coating head for coating the interior surface of the pipe from a supply of a coating material;
a head drive system carried by the operating carriage for moving the coating head relative to the operating carriage in directions both angularly around and radially of the support rod; and a carriage drive system for driving the operating carriage longitudinally along said support rod;
wherein the head is an electrical welding head and the head drive system maintains a preset electrical stick-out relative to the pipe surface as the distance of the surface from the carriage varies.
16. The apparatus according to Claim 15 wherein the head drive system maintains a preset electrical stick-out by detecting variations in welding parameters.
17. The apparatus according to Claim 15 or 16 wherein there is provided a control system for controlling the head drive system and the carriage drive system able to program in all welding parameters including wire feed speed, amperage, arc voltage, torch travel speed, and bead overlap.
18. An apparatus for coating an interior surface of a pipe, said apparatus comprising:
a support rod arranged to extend along the interior of the pipe at a position at or parallel to a longitudinal axis of the pipe;
an operating carriage mounted on the support rod for movement therealong;
the support rod and the operating carriage having co-operating elements which maintain the operating carriage at a fixed rotational orientation relative to said support rod;
a coating head for coating the interior surface of the pipe from a supply of a coating material;
a head drive system carried by the operating carriage for moving the coating head relative to the operating carriage in directions both angularly around and radially of the support rod; and a carriage drive system for driving the operating carriage longitudinally along said support rod;
wherein the support rod is carried within the pipe by at least one connection member connected between the rod and the pipe.
a support rod arranged to extend along the interior of the pipe at a position at or parallel to a longitudinal axis of the pipe;
an operating carriage mounted on the support rod for movement therealong;
the support rod and the operating carriage having co-operating elements which maintain the operating carriage at a fixed rotational orientation relative to said support rod;
a coating head for coating the interior surface of the pipe from a supply of a coating material;
a head drive system carried by the operating carriage for moving the coating head relative to the operating carriage in directions both angularly around and radially of the support rod; and a carriage drive system for driving the operating carriage longitudinally along said support rod;
wherein the support rod is carried within the pipe by at least one connection member connected between the rod and the pipe.
19. The apparatus according to Claim 18 wherein the at least one connection member comprises a series of spacer straps.
20. The apparatus according to Claim 18 or 19 wherein the support rod is generally rectangular so as to define corners and wherein the carriages include guide wheels supporting the carriages on the corners of the support rod.
21. The apparatus according to Claim 20 wherein the guide wheels are arranged in opposed pairs at the front and rear of the carriage.
22. An apparatus for coating an interior surface of a pipe, said apparatus comprising:
a support rod arranged to extend along the interior of the pipe at a position at or parallel to a longitudinal axis of the pipe;
an operating carriage mounted on the support rod for movement therealong;
the support rod and the operating carriage having cooperating elements which maintain the operating carriage at a fixed rotational orientation relative to said support rod;
a coating head for coating the interior surface of the pipe from a supply of a coating material;
a head drive system carried by the operating carriage for moving the coating head relative to the operating carriage in directions both angularly around and radially of the support rod; and a carriage drive system for driving the operating carriage longitudinally along said support rod;
wherein the head is an electrical welding head and a pull-type wire feeder is mounted just behind the head, therefore minimizing the distance over which the wire is pushed to the head.
a support rod arranged to extend along the interior of the pipe at a position at or parallel to a longitudinal axis of the pipe;
an operating carriage mounted on the support rod for movement therealong;
the support rod and the operating carriage having cooperating elements which maintain the operating carriage at a fixed rotational orientation relative to said support rod;
a coating head for coating the interior surface of the pipe from a supply of a coating material;
a head drive system carried by the operating carriage for moving the coating head relative to the operating carriage in directions both angularly around and radially of the support rod; and a carriage drive system for driving the operating carriage longitudinally along said support rod;
wherein the head is an electrical welding head and a pull-type wire feeder is mounted just behind the head, therefore minimizing the distance over which the wire is pushed to the head.
23. The apparatus according to Claim 22 wherein the head is an electrical welding head and a wire feeder includes roller wire guides at the angle transition between the head which extends radially and an axially extending liner.
24. An apparatus for coating an interior surface of a pipe, said apparatus comprising:
a support rod arranged to extend along the interior of the pipe at a position at or parallel to a longitudinal axis of the pipe;
an operating carriage mounted on the support rod for movement therealong;
the support rod and the operating carriage having cooperating elements which maintain the operating carriage at a fixed rotational orientation relative to said support rod;
a coating head for coating the interior surface of the pipe from a supply of a coating material;
a head drive system carried by the operating carriage for moving the coating head relative to the operating carriage in directions both angularly around and radially of the support rod; and a carriage drive system for driving the operating carriage longitudinally along said support rod;
wherein there is provided a control system for controlling an angle of attack of the coating head in a radial plane of the axis relative to a line radial to the axis;
and wherein the control system is arranged such that the angle of attack is changed at different positions around the axis.
a support rod arranged to extend along the interior of the pipe at a position at or parallel to a longitudinal axis of the pipe;
an operating carriage mounted on the support rod for movement therealong;
the support rod and the operating carriage having cooperating elements which maintain the operating carriage at a fixed rotational orientation relative to said support rod;
a coating head for coating the interior surface of the pipe from a supply of a coating material;
a head drive system carried by the operating carriage for moving the coating head relative to the operating carriage in directions both angularly around and radially of the support rod; and a carriage drive system for driving the operating carriage longitudinally along said support rod;
wherein there is provided a control system for controlling an angle of attack of the coating head in a radial plane of the axis relative to a line radial to the axis;
and wherein the control system is arranged such that the angle of attack is changed at different positions around the axis.
25. ~The apparatus according to Claim 24 wherein the angle of attack is increased from a first smaller angle at the 6.00 position to a larger angle at the 9.00 position.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2732008A CA2732008A1 (en) | 2006-09-26 | 2007-02-12 | Apparatus for coating a pipe surface |
| CA2696817A CA2696817C (en) | 2006-09-26 | 2007-02-12 | Apparatus for coating a pipe surface |
| CA2696808A CA2696808C (en) | 2006-09-26 | 2007-02-12 | Apparatus for coating a pipe surface |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US82693606P | 2006-09-26 | 2006-09-26 | |
| US60/826,936 | 2006-09-26 |
Related Child Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2732008A Division CA2732008A1 (en) | 2006-09-26 | 2007-02-12 | Apparatus for coating a pipe surface |
| CA2696817A Division CA2696817C (en) | 2006-09-26 | 2007-02-12 | Apparatus for coating a pipe surface |
| CA2696808A Division CA2696808C (en) | 2006-09-26 | 2007-02-12 | Apparatus for coating a pipe surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2578308A1 true CA2578308A1 (en) | 2008-03-26 |
| CA2578308C CA2578308C (en) | 2011-09-20 |
Family
ID=39264199
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2732008A Abandoned CA2732008A1 (en) | 2006-09-26 | 2007-02-12 | Apparatus for coating a pipe surface |
| CA2696808A Active CA2696808C (en) | 2006-09-26 | 2007-02-12 | Apparatus for coating a pipe surface |
| CA2696817A Active CA2696817C (en) | 2006-09-26 | 2007-02-12 | Apparatus for coating a pipe surface |
| CA2578308A Active CA2578308C (en) | 2006-09-26 | 2007-02-12 | Apparatus for coating a pipe surface |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2732008A Abandoned CA2732008A1 (en) | 2006-09-26 | 2007-02-12 | Apparatus for coating a pipe surface |
| CA2696808A Active CA2696808C (en) | 2006-09-26 | 2007-02-12 | Apparatus for coating a pipe surface |
| CA2696817A Active CA2696817C (en) | 2006-09-26 | 2007-02-12 | Apparatus for coating a pipe surface |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU2007203366A1 (en) |
| CA (4) | CA2732008A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8513559B2 (en) | 2010-12-23 | 2013-08-20 | Swa Holding Company, Inc. | Apparatus for applying wear coating in conduit elbows |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019106847A1 (en) * | 2019-03-18 | 2020-09-24 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Device for introducing a release agent into a hollow workpiece |
-
2007
- 2007-02-12 CA CA2732008A patent/CA2732008A1/en not_active Abandoned
- 2007-02-12 CA CA2696808A patent/CA2696808C/en active Active
- 2007-02-12 CA CA2696817A patent/CA2696817C/en active Active
- 2007-02-12 CA CA2578308A patent/CA2578308C/en active Active
- 2007-07-19 AU AU2007203366A patent/AU2007203366A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8513559B2 (en) | 2010-12-23 | 2013-08-20 | Swa Holding Company, Inc. | Apparatus for applying wear coating in conduit elbows |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2696817C (en) | 2011-05-03 |
| CA2696808C (en) | 2011-05-03 |
| CA2732008A1 (en) | 2008-03-26 |
| CA2696817A1 (en) | 2008-03-26 |
| CA2578308C (en) | 2011-09-20 |
| AU2007203366A1 (en) | 2008-04-10 |
| CA2696808A1 (en) | 2008-03-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |