CN105479092A - Rapid and portable pipeline opening correcting device - Google Patents
Rapid and portable pipeline opening correcting device Download PDFInfo
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- CN105479092A CN105479092A CN201510565559.3A CN201510565559A CN105479092A CN 105479092 A CN105479092 A CN 105479092A CN 201510565559 A CN201510565559 A CN 201510565559A CN 105479092 A CN105479092 A CN 105479092A
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- vertical arm
- axis
- rapid
- axle
- fixed correction
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0533—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor external pipe alignment clamps
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a pipeline opening correcting device. The pipeline opening correcting device is composed of a fixed correcting device, a movable correcting device and a locking device. The fixed correcting device comprises a transverse arm and a fixed vertical arm. The movable correcting device comprises a movable head and a movable vertical arm. The locking device comprises an eccentric wheel, a pressing rod, an eccentric wheel shaft, center shafts, lower shafts, grooves and a hollow groove, wherein the center shafts, the lower shafts, the grooves and the hollow groove are matched with the eccentric wheel, the pressing rod and the eccentric wheel shaft for working. During pipeline correcting, the pipeline opening correcting device is clamped on pipelines, hands hold a handle and a pull rod for pushing the movable correcting device to be attached to the pipeline walls, then the pressing rod is moved away, and correcting operation is completed. Compared with existing equipment, the efficiency can be improved by over ten times, and the device is firm and durable and has no vulnerable workpieces; due to the fact that the fixed vertical arm and the movable vertical arm are of an opening type, the pipeline opening correcting device is easy to operate, light in weight and convenient to carry, and the time and trouble can be saved during using; transmitting is conducted by a bearing, so that the eccentric wheel is very convenient to move. According to the pipeline opening correcting device, the pipelines are corrected through openings and do not need to be lifted and hung for correcting, accordingly, manpower is saved significantly, the working efficiency is improved, and the usage rate is high. The pipelines with various specifications can be corrected just by one pipeline opening correcting device.
Description
Technical field
The present invention relates to a kind of rapid and handy device for aligning pipeline, aligning for pipe welding port, to meet standard, specification, guarantee construction quality.
Background technology
At present, device for aligning pipeline is widely used in the installing engineering of pipeline, improve Pipe installing quality and efficiency of construction, create useful effect, but, also come with some shortcomings, during pipeline butt, need to prop pipeline, leave ground, waste time and energy, contra-aperture device uses bolted Calibration pipe, efficiency is extremely low, waste time and energy, also need to be equipped with tool operation, also has the pipeline butt equipment using hydraulic means, complex structure, heavy, mobile inconvenience, and these contra-aperture devices above-mentioned, the scope of application is single, the pipeline of minority specification can only be corrected, the effect of device for aligning pipeline can't be played to greatest extent.
Summary of the invention
The object of this invention is to provide fast a kind of, portable, light structure, simple to operate, counterpart is accurate, and the device for aligning pipeline of plurality of specifications can be completed, for achieving the above object, device for aligning pipeline of the present invention is made up of fixed correction device and shift calibrating device and locking device, fixed correction device comprises: transverse arm 8, fixing vertical arm 19, shift calibrating device comprises: slip-on head 3, mobile vertical arm 16, locking device comprises: eccentric wheel 7, depression bar 4, camshaft 12, and the axis 6 of cooperating with it, lower shaft 11, groove 13, saturating groove 14, it is characterized in that: the side profile of fixed correction device is 7 shapes, its transverse arm 8 inserts in the hole of slip-on head 3 horizontal direction on shift calibrating device top, they move to run and coordinate, axis 6 is through the saturating groove 14 of transverse arm 8 horizontal direction axial length, two ends are arranged on slip-on head 3 respectively, eccentric wheel 7 is installed between the left plate 25 of fixed correction device and fixed correction device right panel 26, also be namely arranged in the vertical groove thoroughly of transverse arm 8, its external diameter contacts with lower shaft 11 with axis 6, the two ends of camshaft 12 are arranged in the groove 12 in fixed correction device transverse arm 8 respectively.
The side profile of fixed correction device is 7 shapes, with two blocks of identical plates, i.e. the left plate 25 of fixed correction device and fixed correction device right panel 26, their midfeather certain distances, by locating shaft on several 9, several lower locating shafts 10, and axis calibration 18 in fixing vertical arm, axis calibration 20 under fixing vertical arm, their two ends are arranged on the left plate 25 of described fixed correction device respectively with on fixed correction device right panel 26, composition overall structure is also transverse arm 8, fixing vertical arm 19.
Shift calibrating device is with two blocks of identical left plates 32 of plate, i.e. shift calibrating device and shift calibrating device right panel 33, their midfeather certain distances, by axle on several 5, axis 6, lower shaft 11, and axis calibration 17 under axis calibration 15, mobile vertical arm in mobile vertical arm, their two ends are arranged on the left plate 32 of described shift calibrating device respectively with on shift calibrating device right panel 33, composition overall structure, also be slip-on head 3, mobile vertical arm 16.
Pull bar 2 is positioned in slip-on head 3, in the both sides of pull bar 2, a pair handle sleeve 30 be positioned on axle 5, through upper axle 5 in the upper hole 29 of pull bar 2 sheet frame 36, through axis 6 in the lower opening 31 of sheet frame 36, plate hook 37 holds camshaft 12 in the groove of eccentric wheel 7, the termination of plate hook 37 is boss 22, hole 29, hole 31 is cuboid at the vertical direction of pull bar 2, and pull bar 2 can vertically move up and down.
The radial direction of eccentric wheel 7 is fluted, Allah's bar 2 and spring 27 in groove, simultaneously with weight reduction.
On the downside of the saturating groove 14 of transverse arm 8 horizontal direction, there are several grooves 13, the spacing of groove 13, according in certain limit, the specification of different outer diameter tube and determining, to meet eccentric wheel 7, to the pipeline of often kind of specification within the scope of corrected this at optimum position self-locked.
It is symmetrical that the fixing vertical arm 19 of fixed correction device and shift calibrating device move vertical arm 16.
In fixing vertical arm in fixing vertical arm 19, axis calibration 20 under axis calibration 18 and fixing vertical arm, symmetrical with axis calibration 17 under axis calibration 15 in the mobile vertical arm in mobile vertical arm 16 and mobile vertical arm respectively, to ensure the accuracy that pipeline aligns.
In fixing vertical arm, under axis calibration 18 and fixing vertical arm, the axle external diameter of axis calibration 20 all protrudes from the inner side of the fixing vertical arm 19 of fixed correction device, to make axis calibration can contact with duct wall, reaches the object correcting the mouth of pipe.
In mobile vertical arm, under axis calibration 15 and mobile vertical arm, the axle external diameter of axis calibration 17 all protrudes from the inner side of the mobile vertical arm 16 of shift calibrating device, to make axis calibration can contact with duct wall, reaches the object correcting the mouth of pipe.
One end of spring 27 connects the middle part of axis 6, and another end is connected to the middle part of the camshaft 12 in eccentric wheel 7 groove, and spring 27 flexibly connects, eccentric wheel 7 and slip-on head 3 to meet the functional requirement of eccentric wheel 7.
Handle 1 is identical a pair, and its top is arc, and the handle sleeve 30 at two ends, bottom is arranged on a pair axis 5 respectively, and in the middle of one end of a pair handle 1, peace is pull bar 2.
On several, axle bearing 38 is set up in the two ends of axle 5 and the left plate 25 of fixed correction device and fixed correction device right panel 26 contact position.
Bottom bracket bearing 39 and lower shaft bearing 42 is pacified respectively at the two ends of several axis 6, lower shaft 11 and the left plate 32 of shift calibrating device and shift calibrating device right panel 33 contact position.
On several, axle axle sleeve 43 is set up in the two ends of axle 5 and the left plate 25 of fixed correction device and fixed correction device right panel 26 contact position, pacifies axis axle sleeve 44 and lower shaft axle sleeve 45 respectively at the two ends of several axis 6, lower shaft 11 and the left plate 32 of shift calibrating device and shift calibrating device right panel 33 contact position.
The invention has the beneficial effects as follows, fast, pipeline is to timing, device for aligning pipeline is stuck on pipeline, hold handle and pull bar, promote shift calibrating device and press close to tube wall, thereafter depression bar 4 is moved down, correct operation completes, more than 10 times can be raised the efficiency than existing equipment, simple to operate, durable, without rapid wear workpiece, because fixing vertical arm 19 and mobile vertical arm 16 are open types, lightweight, be easy to carry, use laborsaving, save trouble, owing to adopting bearing-transmission, move eccentric wheel very light, opening Calibration pipe of the present invention, pipeline is not needed to prop suspended orthotic, great saving manpower, increase work efficiency, utilization rate is high, a present invention, the pipeline of plurality of specifications can be corrected.
Accompanying drawing explanation
Fig. 1 is a kind of rapid and handy device for aligning pipeline schematic front view;
Fig. 2 is the A-A cross-sectional schematic in Fig. 1;
Fig. 3 is the B-B cross-sectional schematic in Fig. 2;
Fig. 4 is the C-C cross-sectional schematic in Fig. 1;
Fig. 5 is the D-D cross-sectional schematic in Fig. 1;
Fig. 6 is the pull bar schematic diagram in Fig. 3;
Fig. 7 is the schematic top plan view of Fig. 6;
Fig. 8 is the C-C place in Fig. 1, the bearings mounted another kind of structural representation of each shaft end;
Fig. 9 is the C-C place in Fig. 1, and each shaft end installs another kind of structural representation of axle sleeve.
By reference to the accompanying drawings, each concrete parts in further explanatory drawings, 1. handle; 2. pull bar; 3. slip-on head; 4. depression bar; 5. go up axle; 6. axis; 7. eccentric wheel; 8. transverse arm; 9. go up locating shaft; 10. descend locating shaft; 11. lower shafts; 12. camshafts; 13. grooves; 14. saturating grooves; 15. move axis calibration in vertical arm; 16. move vertical arm; 17. move axis calibration under vertical arm; Axis calibration in 18. fixing vertical arm; 19. fixing vertical arm; Axis calibration under 20. fixing vertical arm; 21. pipelines; 22. boss; Spindle nut on 23.; 24. weld seams; The left plate of 25. fixed correction device; 26. fixed correction device right panels; 27. springs; Pillow block rank on 28.; Hole on 29.; 30. handle sleeves; 31. lower opening; The left plate of 32. shift calibrating device; 33. shift calibrating device right panels; Locating shaft step on 34.; Locating shaft nut on 35.; 36. sheet frames; 37. plate hooks; Axle bearing on 38.; 39. bottom bracket bearings; Spindle nut in 40.; 41. glands; 42. lower shaft bearings, axle axle sleeve on 43., 44. axis axle sleeves, 45. lower shaft axle sleeves.
Detailed description of the invention
Fig. 1, device for aligning pipeline is made up of fixed correction device and shift calibrating device and locking device, and fixed correction device comprises: transverse arm 8, fixing vertical arm 19, shift calibrating device comprises: slip-on head 3, mobile vertical arm 16, and locking device comprises: eccentric wheel 7, depression bar 4, camshaft 12, and the axis 6 of cooperating with it, lower shaft 11, groove 13, saturating groove 14;
It is symmetrical that the fixing vertical arm 19 of fixed correction device and shift calibrating device move vertical arm 16, axis calibration 20 under axis calibration 18 and fixing vertical arm in fixing vertical arm in fixing vertical arm 19, symmetrical with axis calibration 17 under axis calibration 15 in the mobile vertical arm in mobile vertical arm 16 and mobile vertical arm respectively, to ensure the accuracy that pipeline aligns, in fixing vertical arm, under axis calibration 18 and fixing vertical arm, the axle external diameter of axis calibration 20 all protrudes from the inner side of the fixing vertical arm 19 of fixed correction device, can contact with duct wall to make axis calibration, reach the object correcting the mouth of pipe, in mobile vertical arm, under axis calibration 15 and mobile vertical arm, the axle external diameter of axis calibration 17 all protrudes from the inner side of the mobile vertical arm 16 of shift calibrating device, can contact completely with tube wall to make axis calibration, guarantee precise calibration pipe welding port,
The transverse arm 8 of fixed correction device inserts in the hole of the horizontal direction of the slip-on head 3 on shift calibrating device top, they move to run and coordinate, axis 6 is through the saturating groove 14 of transverse arm 8 horizontal direction axial length, two ends are positioned on slip-on head 3 respectively, eccentric wheel 7 is arranged in the vertical groove thoroughly of transverse arm 8, its external diameter contacts with lower shaft 11 with axis 6, the two ends of its camshaft 12 are arranged in the groove 13 in fixed correction device transverse arm 8 respectively, on the downside of the saturating groove 14 of transverse arm 8 horizontal direction axial length, there are several grooves 13, the spacing of groove 13, according in certain limit, the specification of different outer diameter tube and determining, to meet eccentric wheel 7, to the pipeline of often kind of specification within the scope of corrected this at optimum position self-locked.
During pipeline butt, rapid and handy device for aligning pipeline is placed on above pipeline, the centre of two pipe welding ports, hold handle 1, mention pull bar 2 simultaneously, camshaft 12 is lifted from groove 13, enter in groove 14, promote slip-on head 3, mobile vertical arm 16 is made to be close to tube wall, now, spring 27 pulls eccentric wheel 7 to move forward simultaneously, thereafter, unclamp handle 1 and pull bar 2, camshaft 12 is made to enter in groove 13, move depression bar 4, eccentric wheel 7 is rotated, thus to promote in the mobile vertical arm in mobile vertical arm 16 axis calibration 17 under axis calibration 15 and mobile vertical arm, with axis calibration 20 under axis calibration 18 in the fixing vertical arm in fixing vertical arm 16 and fixing vertical arm, draw close effect to tube wall simultaneously, two pipelines are forced to be compressed on same axis, reach the object of Calibration pipe, when shedding rapid and handy device for aligning pipeline, oppositely remove depression bar 4, eccentric wheel 7 rotates backward reset, spring 27 drives slip-on head 3, and make mobile vertical arm 16 depart from the contact with tube wall, hold handle 1, mention pull bar 2 simultaneously, camshaft 12 is lifted from groove 13, promote slip-on head 3 to move to direction outside pipe, take off line-up clamp, carry out next pipeline butt operation, from upper and know, operation is very easy for counterpart, if consistent operation, only need two steps, namely while holding handle 1 and pull bar 2, driven forward slip-on head 3, thereafter, move depression bar 4, at once complete pipe welding port to align, simple and fast, easy to operate, very time saving and energy saving, ultrahigh in efficiency.
Fig. 2, fixed correction device is with two blocks of identical plates, the i.e. left plate 25 of fixed correction device and fixed correction device right panel 26, their midfeather certain distances are by locating shaft on several 9, several lower locating shafts 10, and axis calibration 18 in fixing vertical arm, axis calibration 20 under fixing vertical arm, their two ends are arranged on the left plate 25 of fixed correction device respectively with on fixed correction device right panel 26, composition overall structure, also be transverse arm 8, fixing vertical arm 19, shift calibrating device is with two blocks of identical plates, the i.e. left plate 32 of shift calibrating device and shift calibrating device right panel 33, their midfeather certain distances, by axle on several 5, axis 6, lower shaft 11, and axis calibration 15 in mobile vertical arm, axis calibration 17 under mobile vertical arm, their two ends are arranged on the left plate 32 of shift calibrating device respectively with on shift calibrating device right panel 33, composition overall structure, also be slip-on head 3, mobile vertical arm 16, slip-on head 3 is in the horizontal direction, by axle on several 5, several axis 6, several lower shafts 11, their two ends are arranged on respectively on the left plate 32 of shift calibrating device and shift calibrating device right panel 33 and form,
Eccentric wheel 7 is placed in the dead slot between the left plate 25 of fixed correction device and fixed correction device right panel 26, also be namely arranged in the vertical groove thoroughly of transverse arm 8, its external diameter contacts with lower shaft 11 with axis 6, and the two ends of its camshaft 12 are arranged in the groove 13 in fixed correction device transverse arm 8 respectively.
Fig. 3, pull bar 2 is positioned in slip-on head 3, one end of spring 27 connects the middle part of axis 6, another end is connected to the middle part of the camshaft 12 in eccentric wheel 7 groove, spring 27 flexibly connects eccentric wheel 7 and slip-on head 3, constantly change relative to the distance between upper axle 5 and lower shaft 11 to meet camshaft 12, need the functional requirement keeping connecting simultaneously.
Fig. 4, handle 1 is identical a pair, and its top is arc, and the handle sleeve 30 at two ends, bottom is arranged on a pair axis 5 respectively, and in the middle of one end of a pair handle 1, peace is pull bar 2.
Fig. 6 is the upper hole 29 of pull bar 2, sheet frame 36, the lower opening 31 of sheet frame 36, plate hook 37, the termination of plate hook 37 is boss 22, to limit camshaft 12, hole 29, hole 31 is cuboid at pull bar 2 vertical direction, pull bar 2 can be made to be enclosed within axle 5 and axis 6, to keep vertical, move up and down, the effect of pull bar 2 is that camshaft 12 can depart from from groove 13, thus slip-on head 3 is freely moved on transverse arm 8.
Fig. 8, on several, axle bearing 38 is set up in the two ends of axle 5 and the left plate 25 of fixed correction device and fixed correction device right panel 26 contact position, bottom bracket bearing 39 and lower shaft bearing 42 is pacified respectively, to reduce friction at the two ends of several axis 6, lower shaft 11 and the left plate 32 of shift calibrating device and shift calibrating device right panel 33 contact position.
Fig. 9, on several, axle axle sleeve 43 is set up in the two ends of axle 5 and the left plate 25 of fixed correction device and fixed correction device right panel 26 contact position, axis axle sleeve 44 and lower shaft axle sleeve 45 is pacified respectively, to reduce friction at the two ends of several axis 6, lower shaft 11 and the left plate 32 of shift calibrating device and shift calibrating device right panel 33 contact position.
Above technical scheme and embodiment, their technical characteristic can also be combined into several new technical schemes, and in the scope of its principle, also have various deformation, these sunlights are depending on doing protection scope of the present invention.
Claims (12)
1. a rapid and handy device for aligning pipeline, be made up of fixed correction device and shift calibrating device and locking device, it is characterized in that: the side profile of fixed correction device is 7 shapes, its transverse arm (8) inserts in the hole of slip-on head (3) horizontal direction on shift calibrating device top, they move to run and coordinate, axis (6) is through the saturating groove (14) of transverse arm (8) horizontal direction axial length, two ends are arranged on slip-on head (3) respectively, eccentric wheel (7) is positioned between the left plate of fixed correction device (25) and fixed correction device right panel (26), also be namely arranged in the vertical groove thoroughly of transverse arm 8, its external diameter contacts with lower shaft (11) with axis (6), the two ends of camshaft (12) are arranged in the groove (12) in fixed correction device transverse arm (8) respectively.
2. a kind of rapid and handy device for aligning pipeline according to claim 1, it is characterized in that: pull bar (2) is positioned in slip-on head (3), in the both sides of pull bar (2), a pair handle sleeve (30) be positioned on axle (5), through upper axle (5) in the upper hole (29) of pull bar (2) sheet frame (36), through axis (6) in the lower opening (31) of sheet frame (36), plate hook (37) holds camshaft (12) in the groove of eccentric wheel (7), the termination of plate hook (37) is boss (22), hole (29), hole (31) is cuboid at pull bar (2) vertical direction.
3. a kind of rapid and handy device for aligning pipeline according to claim 1, is characterized in that: the radial direction of eccentric wheel (7) is fluted, Allah's bar (2) and spring (27) in groove.
4. a kind of rapid and handy device for aligning pipeline according to claim 1, it is characterized in that: saturating groove (14) downside of transverse arm (8) horizontal direction axial length, there are several grooves (13), the spacing of groove (13), according in certain limit, the pipeline of various outer diameter and determining, to meet eccentric wheel (7), locks in optimum position the pipeline of often kind of specification within the scope of corrected this.
5. a kind of rapid and handy device for aligning pipeline according to claim 1, is characterized in that: it is symmetrical that the fixing vertical arm (19) of fixed correction device and shift calibrating device move vertical arm (16).
6. a kind of rapid and handy device for aligning pipeline according to claim 1, it is characterized in that: axis calibration (20) under axis calibration (18) and fixing vertical arm in the fixing vertical arm in fixing vertical arm (19), symmetrical with axis calibration (17) under axis calibration (15) in the mobile vertical arm in mobile vertical arm (16) and mobile vertical arm respectively.
7. a kind of rapid and handy device for aligning pipeline according to claim 6, is characterized in that: in fixing vertical arm, under axis calibration (18) and fixing vertical arm, the axle external diameter of axis calibration (20) all protrudes from the medial surface of the fixing vertical arm (19) of fixed correction device.
In mobile vertical arm, under axis calibration (15) and mobile vertical arm, the axle external diameter of axis calibration (17) all protrudes from the medial surface of the mobile vertical arm (16) of shift calibrating device.
8. a kind of rapid and handy device for aligning pipeline according to claim 1, it is characterized in that: one end of spring (27) connects the middle part of axis (6), and another end is connected to the middle part of the camshaft (12) in eccentric wheel (7) groove.
9. a kind of rapid and handy device for aligning pipeline according to claim 1, it is characterized in that: handle (1) is identical a pair, its top is arc, the handle sleeve (30) at two ends, bottom is arranged on a pair axis (5) respectively, and in the middle of one end of a pair handle (1), peace is pull bar (2).
10. a kind of rapid and handy device for aligning pipeline according to claim 1, is characterized in that: on several, axle bearing (38) is set up in the two ends of axle (5) and the left plate of fixed correction device (25) and fixed correction device right panel (26) contact position.
11. a kind of rapid and handy device for aligning pipelines according to claim 1, is characterized in that: pacify bottom bracket bearing (39) and lower shaft bearing (42) respectively at the two ends of several axis (6), lower shaft (11) and the left plate of shift calibrating device (32) and shift calibrating device right panel (33) contact position.
12. a kind of rapid and handy device for aligning pipelines according to claim 1, it is characterized in that: axle axle sleeve (43) is set up in the two ends of axle (5) and the left plate of fixed correction device (25) and fixed correction device right panel (26) contact position on several, pacify axis axle sleeve (44) and lower shaft axle sleeve (45) respectively at the two ends of several axis (6), lower shaft (11) and the left plate of shift calibrating device (32) and shift calibrating device right panel (33) contact position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510565559.3A CN105479092A (en) | 2015-09-02 | 2015-09-02 | Rapid and portable pipeline opening correcting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510565559.3A CN105479092A (en) | 2015-09-02 | 2015-09-02 | Rapid and portable pipeline opening correcting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105479092A true CN105479092A (en) | 2016-04-13 |
Family
ID=55666548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510565559.3A Pending CN105479092A (en) | 2015-09-02 | 2015-09-02 | Rapid and portable pipeline opening correcting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105479092A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109702425A (en) * | 2019-02-28 | 2019-05-03 | 重庆科技学院 | A kind of petroleum pipeline welding line-up clamp |
| CN109909670A (en) * | 2019-02-28 | 2019-06-21 | 重庆科技学院 | A kind of petroleum pipeline aligning device assisting automatic welding |
| CN110076515A (en) * | 2018-01-26 | 2019-08-02 | 中国石油天然气集团有限公司 | Device for aligning pipeline |
-
2015
- 2015-09-02 CN CN201510565559.3A patent/CN105479092A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110076515A (en) * | 2018-01-26 | 2019-08-02 | 中国石油天然气集团有限公司 | Device for aligning pipeline |
| CN109702425A (en) * | 2019-02-28 | 2019-05-03 | 重庆科技学院 | A kind of petroleum pipeline welding line-up clamp |
| CN109909670A (en) * | 2019-02-28 | 2019-06-21 | 重庆科技学院 | A kind of petroleum pipeline aligning device assisting automatic welding |
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Application publication date: 20160413 |
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| WD01 | Invention patent application deemed withdrawn after publication |