CN100396428C - Automatic build-up welding position-changing clamp of elbow internal wall - Google Patents
Automatic build-up welding position-changing clamp of elbow internal wall Download PDFInfo
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- CN100396428C CN100396428C CNB2005100016975A CN200510001697A CN100396428C CN 100396428 C CN100396428 C CN 100396428C CN B2005100016975 A CNB2005100016975 A CN B2005100016975A CN 200510001697 A CN200510001697 A CN 200510001697A CN 100396428 C CN100396428 C CN 100396428C
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Abstract
The present invention relates to an automatic build-up welding position-changing clamp of an elbow internal wall, which is fixed on a turntable of a rotative positioning machine. The present invention is characterized in that a framework is provided with two vertical columns and a horizontal wall plate extended by the two vertical columns; an installation clamping plate is arranged on the two vertical columns of the framework, and the installation center of the installation clamping plate coincides with the centerline of a welded section circle of an elbow; an elbow position-changing clamp is provided with an elbow clamping device and a rotating shaft which is arranged at the bending center of the elbow, and the rotating shaft is pivoted on the horizontal wall plate of the framework and is connected with a drive motor. By using the simple position-changing clamp, the present invention makes a welded angle fitting on the position-changing clamp to rotate around the bending center of the elbow when the rotative positioning machine is driven to rotate, the shape of vertical cross-sections of the elbow internal wall at the build-up welding point is circular, and thus, the circumferential build-up welding or the axial build-up welding along the elbow internal wall is realized.
Description
Technical field
The present invention relates to a kind of welding position-changing clamp, particularly a kind of automatic build-up welding position-changing clamp of elbow internal wall that is used for the elbow internal wall automatic surfacing.
Background technology
For solving the existing existing electrical control complexity of flexible arm elbow internal wall automatic surfacing, equipment cost height, flexible arm, complex structure, the expensive problem of adopting.The automatic surfacing of described flexible arm elbow internal wall is meant by welded tube and maintains static, and adopts flexible arm, and this flexible arm end sets firmly a rotation welding gun, and the rotation welding gun is realized built-up welding in the pipe of bend pipe along the center movement in a curve of swan-neck by flexible arm.At application number be: disclose a kind of [straight, curved dual-purpose inside pipe wall automatic bead welding equipment] in 03206256.7 the application for a patent for invention, this device is by chuck and the workpiece card bed that is connected and the chuck drive device of drive chuck is formed, realize the elbow internal wall built-up welding by reciprocal rotation of chuck swing type, workpiece rotates or the swing type rotation around the chuck axis by setup program, in whole weld deposit process, welding gun is in downward downhand position.Overcome the existing above-mentioned deficiency of existing flexible arm, have control convenient and easy, equipment is simple, cost is low, the measured advantage of matter.But, large-scale arc length self-checking device must be arranged for solving the swing welding of on-circular cross-section; Because along the move elbow internal wall cross sectional shape difference at different cross section place of (straight line) direction of welding gun, the internal diameter of the bend pipe that welds and bending radius be difference also, the computer program that accurately designs corresponding built-up welding speed is a very numerous and diverse job.
Summary of the invention
Technical problem to be solved by this invention is the above-mentioned deficiency at prior art, a kind of automatic build-up welding position-changing clamp of elbow internal wall that is used for the elbow internal wall automatic surfacing is provided, the elbow of inner wall overlaying is installed on this position-changing clamp, in revolution positioner driven rotary, can the go for a stroll flexural center rotation of pipe, make the elbow internal wall cross sectional shape of built-up welding place be circle, thereby realize circumference built-up welding or axially built-up welding along elbow internal wall.
Automatic build-up welding position-changing clamp of elbow internal wall provided by the present invention is realized by following technical scheme.
A kind of automatic build-up welding position-changing clamp of elbow internal wall, these anchor clamps are fixed on the rotating disk of revolution positioner, it is characterized in that:
One framework, the horizontal wallboard that has two vertical pillars and extend by two vertical pillars:
One plate that is installed, this plate that is installed is located on two vertical pillars of described framework, and the mounting center of this plate that is installed and bend pipe are welded the central lines of cross section circle:
One bend pipe position-changing clamp, this bend pipe position-changing clamp has the rotating shaft that bend pipe clamping device and is located at the bend pipe flexural center, and this rotating shaft is hubbed on the horizontal wallboard of described framework, and this rotating shaft connects drive motors.
Except that above-mentioned essential features, in specific implementation process, also can replenish following technology contents.
Described automatic build-up welding position-changing clamp of elbow internal wall is characterized in that: the both sides of this plate that is installed are provided with slide block, and two vertical pillars inboards of framework are provided with chute, and this plate that is installed is slidedly arranged on the slide block of its both sides in the chute of two vertical pillars inboards of framework; Top in two vertical pillars of framework is provided with crossbeam, and this crossbeam is provided with nut, and a leading screw connects this plate that is installed by this nut.
Described automatic build-up welding position-changing clamp of elbow internal wall is characterized in that: this plate that is installed is provided with a plurality of installing holes of fixing with revolution positioner floral disc, or its center is provided with the folder handle.
Described automatic build-up welding position-changing clamp of elbow internal wall, it is characterized in that: the bend pipe clamping device of this bend pipe position-changing clamp is the centralized positioning jig, comprising the interior scroll chuck of the scroll chuck of outer centralized positioning jig, V-type folder and interior centralized positioning jig, the center of described centralized positioning jig is adjustable to the distance between the rotating shaft.
Described automatic build-up welding position-changing clamp of elbow internal wall, it is characterized in that: described bend pipe clamping device is the two centralized positioning jigs that form an angle approximately each other, comprising the sectional center positioning fixture of the main centralized positioning jig that fixes the bend pipe one end mouth of pipe and the support bend pipe other end mouth of pipe; The both sides of this main centralized positioning jig are provided with slide block, and with this slide block be slidedly arranged on the fixing flap of rotating shaft on two slide rails in, and be connected with flap by feed screw nut; This sectional center positioning fixture is the V-type folder, and its two ends are provided with slide block, and the end of slide block is provided with double-screw bolt, and this V-type folder is slidedly arranged in the chute of two guide pillars of fixing with rotating shaft with the slide block at its two ends, and fixes with nut.
Described bend pipe inner arm automatic build-up welding position-changing clamp, it is characterized in that: the both sides of this plate that is installed are provided with slide block, the bottom is provided with nut, and two vertical pillars inboards of framework are provided with chute, and this plate that is installed is slidedly arranged on the slide block of its both sides in the chute of two vertical pillars inboards of framework; Bottom in two vertical pillars of framework is provided with crossbeam, and a leading screw connects this crossbeam by the nut of the plate bottom that is installed, and is provided with bevel gear in leading screw.
Described bend pipe clamping device is the two centralized positioning jigs that form an angle approximately each other, comprising the sectional center positioning fixture of the main centralized positioning jig that fixes the bend pipe one end mouth of pipe and the support bend pipe other end mouth of pipe; The both sides of this main centralized positioning jig are provided with slide block, and with this slide block be slidedly arranged on the fixing flap of rotating shaft on two slide rails in, and be connected with flap by feed screw nut; This sectional center positioning fixture is the V-type folder, and its two ends are provided with slide block, and the end of slide block is provided with double-screw bolt, and this V-type folder is slidedly arranged in the chute of two guide pillars of fixing with rotating shaft with the slide block at its two ends, and fixes with nut, and described leading screw is provided with bevel gear.
Bevel gear on the leading screw of the bevel gear on the leading screw of described main centralized positioning jig and the described plate that is installed is meshed.
Described automatic build-up welding position-changing clamp of elbow internal wall, it is characterized in that: this this rotating shaft that is hubbed on the horizontal wallboard of described framework is to connect drive motors by worm and gear, wherein, the axle of this worm gear and this drive motors is affixed, and the axle head of this worm gear and this rotating shaft is affixed.
Described automatic build-up welding position-changing clamp of elbow internal wall is characterized in that: this worm gear that is fixed in this rotating shaft axle head is fan-shaped, and its central angle is 60 °.
Described automatic build-up welding position-changing clamp of elbow internal wall, it is characterized in that: this this rotating shaft that is hubbed on the horizontal wallboard of described framework is to connect drive motors by the change-speed gearing group, wherein, the axle of driving wheel and this drive motors is affixed, and the axle head of this driven pulley and this rotating shaft is affixed.
Described automatic build-up welding position-changing clamp of elbow internal wall is characterized in that: this driven pulley that is fixed in this rotating shaft axle head is fan-shaped, and its central angle is 60 °.
The invention has the advantages that:
The automatic build-up welding position-changing clamp of elbow internal wall that is used for the elbow internal wall automatic surfacing provided by the present invention, with simple anchor clamps make be installed on these anchor clamps by welding of elbow, in revolution positioner driven rotary, the go for a stroll flexural center rotation of pipe, make the elbow internal wall vertical cross-section shape of built-up welding place identical, thereby realize circumference built-up welding or axially built-up welding, greatly reduce equipment cost along elbow internal wall.
For architectural feature of the present invention and effect thereof are had further understanding, enumerate specific embodiment now and be described with reference to the accompanying drawings as follows:
Description of drawings
Fig. 1 is a three-dimensional exploded view of the present invention.
Fig. 2 is a stereogram of the present invention.
Fig. 3 is the profile of another embodiment of the present invention.
Fig. 4 is user mode figure of the present invention.
The specific embodiment
Technical conceive of the present invention is that a kind of built-up welding position-changing clamp of design is to simplify the complexity of bend pipe surfacing equipment, the automatic build-up welding position-changing clamp of elbow internal wall that is provided is to be fixed on the rotating disk of revolution positioner, be installed on this position-changing clamp by welding of elbow, drive also can the go for a stroll flexural center rotation of pipe of position-changing clamp position-changing clamp self when being rotated at revolution positioner rotating disk by the welded tube center, thereby realize circumference built-up welding or axially built-up welding, make built-up welding place elbow internal wall cross sectional shape be circle along elbow internal wall.The order of this position-changing clamp is on the vertical plane of revolution positioner center of turntable axis by the mouth of pipe of the built-up welding bend pipe welded tube mouth that promptly begins, can begin to carry out built-up welding at this mouth of pipe, after the built-up welding of mouth of pipe inner ring finishes, anchor clamps rotate an angle around the flexural center of this bend pipe, cross section near last overlay cladding is on the vertical plane of positioner center of turntable axis, carries out the interior round built-up welding in this cross section.So be performed until the central cross-section of bend pipe, turn around again to be installed, repeat aforementioned process the interior all built-up welding of whole bend pipe pipe are finished.The present invention realizes the elbow internal wall automatic surfacing with low-cost anchor clamps simplified apparatus complexity.
The structure of this automatic build-up welding position-changing clamp of elbow internal wall as shown in Figure 1, 2, it mainly comprises:
One framework 1, the horizontal wallboard 12 that has two vertical pillars 11 and extend to horizontal direction by the lower end of two vertical pillars 11:
One plate 2 that is installed, this plate 2 that is installed is located on two vertical pillars 11 of described framework 1, and the center of this plate 2 that is installed and bend pipe are welded the central lines of cross section circle; This plate 2 that is installed is to be used for fixing with the rotating disk (as floral disc or chuck) of revolution positioner, whole anchor clamps install around the center rotation of clamp 2 under the drive of revolution positioner, be installed on bend pipe then welds the cross section circle around quilt the center line rotation of being welded on the anchor clamps, thus the interior circular cross-section built-up welding of realization bend pipe.
One bend pipe anchor clamps 4, these bend pipe anchor clamps 4 have and are used for fixing by the bend pipe clamping device of welding of elbow and a rotating shaft 41, this rotating shaft 41 is hubbed on the horizontal wallboard 12 of described framework 1, the axle center of this rotating shaft 41 overlaps with the flexural center of being welded bend pipe, and this rotating shaft connects drive motors 7, can go for a stroll under the drive of the drive motors 7 flexural center rotation of pipe is carried out built-up welding in being operated on the anchor ring.
It below is detailed description to specific embodiments of the invention.
Embodiment one
It shown in Fig. 1,2 a kind of specific embodiment of automatic build-up welding position-changing clamp of elbow internal wall of the present invention, wherein, these both sides that are installed plate 2 convex with slide block 21, two vertical pillars, 11 inboards of framework 1 are provided with chute 111, and this plate 2 that is installed is slidedly arranged on the slide block 21 of its both sides in the chute 111 of two vertical pillars, 11 inboards of framework 1; Top in two vertical pillars 11 of framework 1 also is provided with crossbeam 13, this crossbeam 13 is provided with nut 131, one leading screw 3 connects this plate 2 that is installed by the nut on this crossbeam 13 131, rotational lead screw 3 can be regulated the centre-height of the plate 2 that is installed to adapt to the bend pipe of different-diameter and height, makes by the center line by weldering cross section circle of weldering bend pipe to overlap with the center of being installed of the plate 2 that is installed.
The described plate 2 that is installed is a flat board, and when the rotating disk of positioner was floral disc, this plate 2 that is installed was provided with a plurality of installing holes of fixing with the positioner floral disc 22; If when the rotating disk of positioner was chuck, then this center that is installed plate 2 was provided with a folder that is used for being held by the positioner chuck 15 (see figure 3)s.
The bend pipe clamping device of described bend pipe anchor clamps is the centralized positioning jig, interior scroll chuck comprising the scroll chuck of outer centralized positioning jig, V-type folder and interior centralized positioning jig, the center of described centralized positioning jig is adjustable to adapt to the bend pipe of different tube diameters and height to the distance between the rotating shaft, and its center is overlapped with the center of being installed of the plate 2 that is installed.
In Fig. 1,2 specific embodiment, for the elbow that guarantees to be installed firm, described bend pipe clamping device is two to become the centralized positioning jig of 60 ° of angles each other approximately, comprising main centralized positioning jig 43 that fixes the bend pipe one end mouth of pipe and the sectional center positioning fixture 44 that supports the bend pipe other end mouth of pipe; This main centralized positioning jig 43 is interior scroll chucks, and be provided with slide block 431 in its both sides, this slide block 431 be slidedly arranged on the fixing flap 8 of rotating shaft 41 on two slide rails 46 in, and is connected with rotating shaft 41 with nut 48 by leading screw 47, can regulate main centralized positioning jig 43 by rotating threaded shaft 47 and the axis of rotating shaft 41 be overlapped with the flexural center that quilt welds bend pipe to the distance of rotating shaft 41; This sectional center positioning fixture 44 is V-type folders, its two ends are provided with slide block 441, the end of slide block 441 is provided with double-screw bolt 442, and this V-type folder is slidedly arranged in the chute 45 of two guide pillars of fixing with rotating shaft 41 49 with the slide block 441 at its two ends, and with nut that itself and two guide pillars 49 is fixing.
This this rotating shaft 41 that is hubbed on the horizontal wallboard 12 of described framework 1 is to be connected drive motors 7 by worm gear 5 with worm screw 6, wherein, the axle Joint of this worm screw 6 and this drive motors 7, this worm gear 5 is affixed with the axle head of this rotating shaft.This worm gear 5 that is fixed in these rotating shaft 41 axle heads is fan-shaped, and its central angle is 60 °.
This this rotating shaft 41 that is hubbed on the horizontal wallboard of described framework can also be to connect drive motors by the change-speed gearing group, wherein, a Joint of driving wheel and this drive motors, the axle head of this driven pulley and this rotating shaft is affixed.This driven pulley that is fixed in these rotating shaft 41 axle heads is fan-shaped, and its central angle is 60 °.
Embodiment two
Shown in Figure 3 is another embodiment of the present invention.Wherein:
These both sides that are installed plate 2 convex with slide block 21, and two vertical pillars, 11 inboards of framework 1 are provided with chute 111, and this plate 2 that is installed is slided in the chute 111 of two vertical pillars, 11 inboards of establishing dried framework 1 with the slide block 21 of its both sides; Bottom in two vertical pillars 11 of framework 1 is provided with bottom girder 14, and this bottom girder 14 is provided with nut 141, and regulates the leading screw 142 of plate 2 positions that are installed and connect these plates 2 that are installed by this nut 141, and is provided with bevel gear 143 in leading screw 142; Rotational lead screw 142 can be regulated the centre-height of the plate 2 that is installed to adapt to the bend pipe of different-diameter and height, makes by the center line by weldering cross section circle of weldering bend pipe to overlap with the center of being installed of the plate 2 that is installed;
Described bend pipe clamping device is two to become the centralized positioning jig of 60 ° of angles each other approximately, comprising main centralized positioning jig 43 that fixes the bend pipe one end mouth of pipe and the sectional center positioning fixture 44 that supports the bend pipe other end mouth of pipe; This main centralized positioning jig 43 is interior scroll chucks, and be provided with slide block 431 in its both sides, this slide block 431 be slidedly arranged on the fixing flap of rotating shaft 41 on two slide rails 46 in, and leading screw 432 nuts 433 that pass through the main centralized positioning jig of adjusting position are connected with flap, wherein this leading screw 432 is to be hubbed at the flap two ends, and nut 433 is bottoms of being fixed in main centralized positioning jig 43; This sectional center positioning fixture is the V-type folder, its two ends are provided with slide block 441, the end of slide block 441 is provided with double-screw bolt 442, and this V-type folder is slidedly arranged in the chute 45 of two guide pillars of fixing with rotating shaft 41 49 with the slide block 441 at its two ends, and with nut that itself and two guide pillars 49 is fixing.The leading screw 432 of the main centralized positioning jig of described adjusting position is provided with bevel gear 434:
Initial position, make the flap of main centralized positioning jig 43 be in the position of the plate 2 that vertically is installed, at this moment, bevel gear 434 on the leading screw 432 will mesh in the bevel gear on the leading screw 142, can be when adjusting be installed the centre-height of plate 2 by rotating threaded shaft 142, regulate the distance of main centralized positioning jig 43, the axis of rotating shaft 41 is overlapped with the flexural center of being welded bend pipe to rotating shaft 41.In welding process, rotate main centralized positioning jig, then two bevel gears break away from engagement.
This this rotating shaft 41 that is hubbed on the horizontal wallboard 12 of described framework 1 is to be connected drive motors 7 by worm gear 5 with worm screw 6, wherein, the axle Joint of this worm screw 6 and this drive motors 7, this worm gear 5 is affixed with the axle head of this rotating shaft.This worm gear 5 that is fixed in these rotating shaft 41 axle heads is fan-shaped, and its central angle is 60 °.
The above only is the specific embodiment of the invention, everyly is familiar with this skill personage and makes various modifications or change very easily in view of the above, therefore, does not allly allly break away from the equivalence that claim spirit of the present invention done and replaces, and all should be included in this patent protection domain.
Claims (10)
1. automatic build-up welding position-changing clamp of elbow internal wall, these anchor clamps are fixed on the rotating disk of positioner, it is characterized in that:
One framework, the horizontal wallboard that has two vertical pillars and extend by two vertical pillars;
One plate that is installed, this plate that is installed is located on two vertical pillars of described framework, and the mounting center of this plate that is installed and bend pipe are welded the central lines of cross section circle;
One bend pipe anchor clamps, these bend pipe anchor clamps have the rotating shaft that bend pipe clamping device and is located at the bend pipe flexural center, and this rotating shaft is hubbed on the horizontal wallboard of described framework, and this rotating shaft connects drive motors.
2. automatic build-up welding position-changing clamp of elbow internal wall according to claim 1, it is characterized in that: the both sides of this plate that is installed are provided with slide block, two vertical pillars inboards of framework are provided with chute, and this plate that is installed is slidedly arranged on the slide block of its both sides in the chute of two vertical pillars inboards of framework; Top in two vertical pillars of framework is provided with crossbeam, and this crossbeam is provided with nut, and a leading screw connects this plate that is installed by this nut.
3. automatic build-up welding position-changing clamp of elbow internal wall according to claim 1 is characterized in that: this plate that is installed is provided with a plurality of installing holes of fixing with the positioner floral disc, or its center is provided with the folder handle.
4. automatic build-up welding position-changing clamp of elbow internal wall according to claim 1, it is characterized in that: the bend pipe clamping device of these bend pipe anchor clamps is the centralized positioning jig, comprising the interior scroll chuck of the scroll chuck of outer centralized positioning jig, V-type folder and interior centralized positioning jig, the center of described centralized positioning jig is adjustable to the distance between the rotating shaft.
5. automatic build-up welding position-changing clamp of elbow internal wall according to claim 1, it is characterized in that: described bend pipe clamping device is two to become the centralized positioning jig of 60 ° of angles each other approximately, comprising the main centralized positioning jig that fixes the bend pipe one end mouth of pipe with support the sectional center positioning fixture of the bend pipe other end mouth of pipe; The both sides of this main centralized positioning jig are provided with slide block, and with this slide block be slidedly arranged on the fixing flap of rotating shaft on two slide rails in, and be connected with flap by feed screw nut: this sectional center positioning fixture is the V-type folder, its two ends are provided with slide block, the end of slide block is provided with double-screw bolt, this V-type folder is slidedly arranged in the chute of two guide pillars of fixing with rotating shaft with the slide block at its two ends, and fixes with nut.
6. automatic build-up welding position-changing clamp of elbow internal wall according to claim 1, it is characterized in that: the both sides of this plate that is installed are provided with slide block, the bottom is provided with nut, and two vertical pillars inboards of framework are provided with chute, and this plate that is installed is slidedly arranged on the slide block of its both sides in the chute of two vertical pillars inboards of framework; Bottom in two vertical pillars of framework is provided with crossbeam, and a leading screw connects this crossbeam by the nut of the plate bottom that is installed, and is provided with bevel gear in leading screw;
Described bend pipe clamping device is two to be mutually the centralized positioning jig of certain angle each other, comprising the main centralized positioning jig that fixes the bend pipe one end mouth of pipe with support the sectional center positioning fixture of the bend pipe other end mouth of pipe; The both sides of this main centralized positioning jig are provided with slide block, and with this slide block be slidedly arranged on the fixing flap of rotating shaft on two slide rails in, and be connected with flap by feed screw nut; This sectional center positioning fixture is the V-type folder, and its two ends are provided with slide block, and the end of slide block is provided with double-screw bolt, and this V-type folder is slidedly arranged in the chute of two guide pillars of fixing with rotating shaft with the slide block at its two ends, and fixes with nut, and described leading screw is provided with bevel gear;
Bevel gear on the leading screw of the bevel gear on the leading screw of described main centralized positioning jig and the described plate that is installed is meshed.
7. automatic build-up welding position-changing clamp of elbow internal wall according to claim 1, it is characterized in that: this this rotating shaft that is hubbed on the horizontal wallboard of described framework is to connect drive motors by worm and gear, wherein, the axle of this worm screw and this drive motors is affixed, and the axle head of this worm gear and this rotating shaft is affixed.
8. automatic build-up welding position-changing clamp of elbow internal wall according to claim 7 is characterized in that: this worm gear that is fixed in this rotating shaft axle head is fan-shaped, and its central angle is 60 °.
9. automatic build-up welding position-changing clamp of elbow internal wall according to claim 1, it is characterized in that: this this rotating shaft that is hubbed on the horizontal wallboard of described framework is to connect drive motors by the change-speed gearing group, wherein, the axle of driving wheel and this drive motors is affixed, and the axle head of this driven pulley and this rotating shaft is affixed.
10. automatic build-up welding position-changing clamp of elbow internal wall according to claim 9 is characterized in that: this driven pulley that is fixed in this rotating shaft axle head is fan-shaped, and its central angle is 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100016975A CN100396428C (en) | 2005-02-05 | 2005-02-05 | Automatic build-up welding position-changing clamp of elbow internal wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100016975A CN100396428C (en) | 2005-02-05 | 2005-02-05 | Automatic build-up welding position-changing clamp of elbow internal wall |
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| Publication Number | Publication Date |
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| CN1814398A CN1814398A (en) | 2006-08-09 |
| CN100396428C true CN100396428C (en) | 2008-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100016975A Active CN100396428C (en) | 2005-02-05 | 2005-02-05 | Automatic build-up welding position-changing clamp of elbow internal wall |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102862016B (en) * | 2012-10-19 | 2014-09-03 | 江苏腾旋科技股份有限公司 | Adjustable welding mechanism for tail cover |
| CN102922446B (en) * | 2012-11-01 | 2015-05-27 | 成都天元模具技术有限责任公司 | Four-axis-opposite fixture |
| CN103056579B (en) * | 2012-12-27 | 2014-09-17 | 杭州电子科技大学 | Elbow clamping device for cutting steel medium-sized elbow intersecting line |
| DE102018102456A1 (en) * | 2018-02-05 | 2019-08-08 | Eberspächer Exhaust Technology GmbH & Co. KG | Quick-change coupling |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU996150A1 (en) * | 1981-02-12 | 1983-02-15 | Киевский Филиал Проектно-Технологического Института "Энергомонтажпроект" | Unit for welding interior and exterior seams of pipeline branches |
| JPS58179567A (en) * | 1981-12-11 | 1983-10-20 | Kuroki Kogyosho:Kk | Build-up welding method of inner face of elbow tube and elbow tube supporting device |
| SU1152753A1 (en) * | 1982-10-12 | 1985-04-30 | Omskij Polt Inst | Rack for welding sectionated taps of pipes |
| CN86106399A (en) * | 1985-11-07 | 1987-07-08 | 澳大利亚维克尔斯有限公司 | The processing method of bend pipe inner surface and device |
| CN2810861Y (en) * | 2005-02-05 | 2006-08-30 | 刘振英 | Gripping device for displacement of automatic welding deposit in inner wall of bent tube |
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2005
- 2005-02-05 CN CNB2005100016975A patent/CN100396428C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU996150A1 (en) * | 1981-02-12 | 1983-02-15 | Киевский Филиал Проектно-Технологического Института "Энергомонтажпроект" | Unit for welding interior and exterior seams of pipeline branches |
| JPS58179567A (en) * | 1981-12-11 | 1983-10-20 | Kuroki Kogyosho:Kk | Build-up welding method of inner face of elbow tube and elbow tube supporting device |
| SU1152753A1 (en) * | 1982-10-12 | 1985-04-30 | Omskij Polt Inst | Rack for welding sectionated taps of pipes |
| CN86106399A (en) * | 1985-11-07 | 1987-07-08 | 澳大利亚维克尔斯有限公司 | The processing method of bend pipe inner surface and device |
| CN2810861Y (en) * | 2005-02-05 | 2006-08-30 | 刘振英 | Gripping device for displacement of automatic welding deposit in inner wall of bent tube |
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| Publication number | Publication date |
|---|---|
| CN1814398A (en) | 2006-08-09 |
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