CN1041557A - Metal pipe inner seam welding eyeglass viewer and revolution tip - Google Patents
Metal pipe inner seam welding eyeglass viewer and revolution tip Download PDFInfo
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- CN1041557A CN1041557A CN 89108583 CN89108583A CN1041557A CN 1041557 A CN1041557 A CN 1041557A CN 89108583 CN89108583 CN 89108583 CN 89108583 A CN89108583 A CN 89108583A CN 1041557 A CN1041557 A CN 1041557A
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- welding
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- eyeglass
- weld
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Abstract
Metal pipe inner seam welding eyeglass viewer and revolution tip.Eyeglass viewer and revolution tip are contained in respectively on corresponding semi-girder and the head, can make the interior circumferential weld of each bar of metal tube all adopt external control to weld automatically, replace the automatic or semiautomatic welding of manual welding and internal control fully, make welder's operation change in the container of almost sealing remove extraordinary labour protection from for operating under the good environment that is not subjected to the harm of dense smoke, dust, pernicious gas, high temperature and arc light; Can make the seal head girth repair rate descend 80%, efficient improves 4 times, and cost descends 80%.
Description
One cover eyeglass viewer and revolution weldering are chewed, be contained in respectively on corresponding semi-girder and the head, can make the interior circumferential weld of each bar of metal tube all adopt external control to weld automatically, replace the automatic or semiautomatic welding of manual welding and internal control fully, reach the purpose of improving welder's working condition, raising product welding quality and efficient and reducing cost.
The container of internal diameter so far＞500 millimeter, boiler-steam dome for example, owing to have eyeglass viewer and revolution weldering not to chew, circumferential weld can only adopt manual electric arc welding in its end socket; Though circumferential weld adopts Lincoln weld in its cylindrical shell, the welder must enter operation in the weldment as the manual welding welder.The welding of metal pipe inner seam, welder's working condition is poor, and health is subjected to very big infringement, needs extraordinary labour protection; Product welding quality and efficient are difficult for improving, and cost is difficult to reduce.
Feature of the present invention is:
The eyeglass viewer is used for the external control of circumferential weld 7 welding in interior circumferential weld 3 of internal diameter 〉=460 millimeter cylinder shape canister 2 cylindrical shells and the end socket to be observed.It is made up of reflective mirror 6 Fig. 1, Fig. 2 and magnifying glass 4.Reflective mirror is positioned at wire feed head 5 fronts welderings and chews 8 side top; Magnifying glass is positioned at the front portion of semi-girder 1.The α that leans forward=45 of reflective mirror °, 15 ° of other angle of inclination beta ≈.Center of lens is from 200～400 millimeters of container bottoms.Point of observation K and two center of lens on same straight line, this straight line and container center line parallel.The welder point of observation K by magnifying glass 4 observe weld in the reflective mirrors 6 chew 8 and the centering situation of guiding indicating pointer 9-guiding indicating pointer AB Fig. 4 of having amplified and below groove A
0B
0Upright virtual image A_ ' B_ ' and A
0' B
0', on the retina of eyeground, present image A " B " and A
0" B
0".Two virtual images are overlapped, carry out welding operation.Distance L between point of observation K and reflective mirror≤6.5 a meter reflective mirror is a common mercury baseplane mirror.Magnifying glass is ordinary optical glass list convex lens, focal distance f=0.2～2 meter, multiplication factor n=(A ' B ')/(AB)=(v)/(u)=2～5, diameter=60～120 millimeter.
The external control welding that Fig. 3 is used for circumferential weld 13 in 2.5～5 millimeters solid welding wires 18 of diameter, center-hole diameter d 〉=300 millimeter ampuliform or the porose end socket 12 of jar shape canister is chewed in the revolution weldering.It is made up of anterior vertical section 19, middle part crescent moon section 14 and rear horizontal section 11.The vertical section bottom has that welding wire alignment wheel pays 17, conduction chews 15 and guiding indicating pointer 16, and is hinged mutually with the crescent moon section.Oil cylinder or cylinder 20 make on the vertical section 19 90 ° of turning down.Crescent moon section upper end is hinged mutually with horizontal segment, and the l distance of can sliding in the horizontal direction, to control the rotating extreme position of vertical section-horizontal or vertical.Arc shape decision welding wire in the inboard garden of crescent moon section is in the radius of curvature R of corner.The root of horizontal segment is fixed on the welding wire exit of wire feed head 5 by screw 10.Vertical section can enter in the bottle fully; Horizontal segment not exclusively enters in the bottle, and it is stayed the outer length m of bottle and is convenient to the welder and sees clearly to conduct electricity in the bottle outside bottle and chew 15 and the centering situation of guiding indicating pointer 16, carries out welding operation.
This invention is tested on boiler-steam dome, has obtained success.
Claims (5)
1, focal distance f=0.2～2 meter, eyeglass viewer Fig. 1 that the ordinary optical glass list convex lens 4 of multiplication factor n=2～5, diameter D=60～120 millimeter and common mercury baseplane mirror 6 are formed and Fig. 2 are used for the welding external control observation of circumferential weld 7 in the circumferential weld 3 and end socket in internal diameter 〉=460 millimeter, long L≤6.5 meter cylinder shape canister 2 cylindrical shells.
2, the external control welding that Fig. 3 is used for diameter 2.5～5 solid welding wires 18, end socket center-hole diameter d 〉=300 millimeters porose end socket 12 interior circumferential welds 13 of canister is chewed in the revolution weldering.
3, the eyeglass viewer in the claim 1 is used for defective removing, repair welding and the observation of nondestructive testing external control of right 1 container inner seam 3 and 7.
4, the control far away of removing, repair welding and nondestructive testing L≤6.5 meter that the eyeglass viewer in the claim 1 is used for welding, the weld defect of the outer circumferential weld of various metal tubes is observed.
5, the control far away that the eyeglass viewer in the claim 1 is used for removing, repair welding and nondestructive testing L≤6.5 meter of vertical masonry joint and the welding of other hardware weld seams inside and outside the metal tube, weld defect is observed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89108583 CN1041557A (en) | 1989-11-20 | 1989-11-20 | Metal pipe inner seam welding eyeglass viewer and revolution tip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89108583 CN1041557A (en) | 1989-11-20 | 1989-11-20 | Metal pipe inner seam welding eyeglass viewer and revolution tip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1041557A true CN1041557A (en) | 1990-04-25 |
Family
ID=4857633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89108583 Pending CN1041557A (en) | 1989-11-20 | 1989-11-20 | Metal pipe inner seam welding eyeglass viewer and revolution tip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1041557A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114346504A (en) * | 2021-12-29 | 2022-04-15 | 中国原子能科学研究院 | Welding method of tubular part |
-
1989
- 1989-11-20 CN CN 89108583 patent/CN1041557A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114346504A (en) * | 2021-12-29 | 2022-04-15 | 中国原子能科学研究院 | Welding method of tubular part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| RJ01 | Rejection of invention patent application after publication |