CN102773652A - Automatic centering fixing device for welding of long round pipe - Google Patents
Automatic centering fixing device for welding of long round pipe Download PDFInfo
- Publication number
- CN102773652A CN102773652A CN2012102838762A CN201210283876A CN102773652A CN 102773652 A CN102773652 A CN 102773652A CN 2012102838762 A CN2012102838762 A CN 2012102838762A CN 201210283876 A CN201210283876 A CN 201210283876A CN 102773652 A CN102773652 A CN 102773652A
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- hydraulic cylinder
- lock lever
- locking collar
- piston rod
- check lock
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Abstract
The invention discloses an automatic centering fixing device for welding of a long round pipe. An artificial fixing mode is normally adopted for the existing devices, welding is achieved through repeated measurement and adjustment, the positioning accuracy is low, and the devices are time and labor consuming. A locking lever is composed of a plurality of taper sections in the same direction, a concentric locking collar is provided with locating holes, at least three through grooves corresponding to each taper sections on the locking lever are opened on the circumference of the concentric locking collar, each elastic locking sleeve is provided with an arc-shaped elastic metal sheet which protrudes outwards, a hydraulic cylinder fixing sleeve is arranged on a hydraulic cylinder and is threadedly matched with the inner wall of the locking lever, a hydraulic cylinder piston rod is fixed on a piston rod fixing board which is provided with locating bolts on the circumference, and each locating bolt is provided with a copper sleeve, arranged in a chute of the locking lever, and tightly screwed on the locating holes of the concentric locking collar. According to the fixing device, highly accurate location can be automatically achieved without repeated measurement and adjustment, spot welding fixation is omitted, welding can be performed directly, and time and labor are saved.
Description
Technical field
The present invention relates to a kind of being used for two sections pipes are carried out the automatic centering stationary device, specifically is two sections identical pipes of internal diameter to be carried out fast automatic centering fix, and two sections pipes can be welded easily.
Background technology
Various pipelines on the ship are called " blood vessel " of boats and ships, as the predominating path of ship power transmission, delivering vapor, gas, water and wet goods; In boats and ships, play considerable effect; When in the shipbuilding process, need carrying out centering welding, when the pipe of two sections different-diameters is welded together, need carry out space orientation to two sections pipes earlier to a large amount of pipelines; Make two sections circle pipe centerings, just can weld then.
At present, mostly be artificial fixed form to carrying out sterically defined mode before two sections pipe welding.Though the centering of adopting artificial fixed form also can realize two sections pipes needs could realize welding through repeatedly measuring, adjusting that positioning accuracy is low, wastes time and energy.
Adopt oval pipe welding automatic centering fixture can avoid above problem.Chinese patent CN 201012445Y discloses a kind of pipe welded retainer; This patent adopts the elasticity lock sleeve that round tube inner wall is locked; Be provided with release nut and pipe end face and offset, discharge nut and need place the pipe outside to adopt staff to screw, be not suitable for the welding centering of two segment lengths pipe.
Summary of the invention
Of the present invention a kind of oval pipe welding automatic centering fixture is provided.Use this oval pipe welding automatic centering fixture that two sections pipes are carried out centering, be applicable to the same internal diameter pipe of length, fix through the hydraulic power automatic centering, positioning accuracy is high, and is convenient and swift, time saving and energy saving.
The technical solution adopted for the present invention to solve the technical problems is:
Oval pipe welding automatic centering fixture comprises check lock lever, concentric locking collar, elasticity lock sleeve, steel ball, piston rod fixed head, set bolt, copper sheathing, hold-down nut, hydraulic cylinder fixed cover and hydraulic cylinder.Described check lock lever is made up of some conical sections in the same way, and the one of which end is hollow cylinder and has chute that inwall is processed with screw thread; The other end is circumferential rib, and described concentric locking collar is with respect to there being locating hole on the chute, and each conical section on the corresponding check lock lever of concentric locking collar is circumferentially having three grooves at least; In each groove steel ball is arranged, the elasticity lock sleeve equates that with conical section quantity on the check lock lever elasticity locking sleeve is on the groove homonymy that is fixed on the concentric locking collar; Put the resilient blade that all has arc outwards to swell with corresponding that section elasticity locking of groove; The resilient blade of corresponding with check lock lever respectively conical section of described steel ball and elasticity lock sleeve offsets, and resilient blade and pipe one offset with pipe two inwalls, and the hydraulic cylinder fixed cover is installed on the described hydraulic cylinder; The hydraulic cylinder fixed cover cooperates with the check lock lever inner thread; Hydraulic cylinder piston rod is fixed on the piston rod fixed head through hold-down nut, and the piston rod fixed head is circumferentially installed four bolts, and each bolt is equipped with copper sheathing and places in the chute of check lock lever; Each bolt is tightened on the locating hole of concentric locking collar, and hydraulic cylinder and external power supply are joined.
Described hydraulic cylinder is a single-acting spring reset hydraulic cylinder.
The invention has the beneficial effects as follows: the present invention can directly be positioned in the long tube; Compare with artificial pipe location centering, just do not need repeatedly to measure, adjust and to realize high-precision location automatically, exempted the fixing step of spot welding; Directly weld, time saving and energy saving.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the A-A cutaway view through the Fig. 1 that amplifies.
The specific embodiment
Be further described below in conjunction with the accompanying drawing specific embodiments of the invention.
As depicted in figs. 1 and 2, oval pipe welding automatic centering fixture comprises check lock lever 6, concentric locking collar 5, elasticity lock sleeve 3, steel ball 2, piston rod fixed head 8, set bolt 9, copper sheathing 10, hold-down nut 19, hydraulic cylinder fixed cover 15 and hydraulic cylinder 14.Described check lock lever 6 is made up of some conical sections in the same way, and the one of which end is hollow cylinder and has chute 18 that inwall is processed with screw thread 12; The other end is circumferential rib 20; Described concentric locking collar 5 is with respect to there being locating hole 11 on the chute 18, each conical section on the concentric locking collar 5 corresponding check lock levers 6 has steel ball 2 circumferentially having three grooves 7 at least in each groove 7; Elasticity lock sleeve 3 equates with conical section quantity on the check lock lever 6; Elasticity lock sleeve 3 is axially fixed on groove 7 homonymies on the concentric locking collar 5, and the outwards resilient blade 4 of protuberance of arc is arranged all on groove 7 corresponding that section elasticity lock sleeves 3, and described steel ball 2 offsets with the resilient blade 4 of check lock lever 6 corresponding conical sections and elasticity lock sleeve 3 respectively; Resilient blade 4 offsets with pipe 1 and pipe 2 16 inwalls; On the described hydraulic cylinder 14 hydraulic cylinder fixed cover 15 is installed, is fixed on hydraulic cylinder 14 on the screw thread 12 of check lock lever 6 inwalls, hydraulic cylinder piston rod 17 is fixed on the piston rod fixed head 8 through hold-down nut 19; Piston rod fixed head 8 is circumferentially installed four bolts 9; Each bolt 9 is equipped with copper sheathing 10 and places 18 li of the chutes of check lock lever 6, and each bolt 9 is tightened on the locating hole 11 of concentric locking collar 5, and hydraulic cylinder 14 joins with external power supply 13.Hydraulic cylinder 14 adopts single-acting spring reset hydraulic cylinder.
During work; Be put in oval pipe welding automatic centering fixture between pipe to be welded 1 and the pipe 2 16 earlier, open external power supply 13 and make hydraulic cylinder 14 move right, hydraulic cylinder piston rod 17 during toward right motion drive check lock lever 6 move right; Thereby the conical section of check lock lever 6 forces steel ball 2 to open the resilient blade 4 of elasticity lock sleeve 3 outward the inwall that props up pipe 1 and pipe 2 16; Force pipe 1 and pipe 2 16 centerings concentric, weld again, accomplish the welding recession and remove power source 14; Hydraulic cylinder 15 automatically resets, and from pipeline, takes out the present invention.
Claims (2)
1. oval pipe welding automatic centering fixture; Comprise check lock lever (6), concentric locking collar (5), elasticity lock sleeve (3), steel ball (2), piston rod fixed head (8), set bolt (9), copper sheathing (10), hold-down nut (19), hydraulic cylinder fixed cover (15) and hydraulic cylinder (14); It is characterized in that: described check lock lever (6) is made up of some conical sections in the same way; The one of which end is hollow cylinder and has chute (18); Inwall is processed with screw thread (12), and the other end is circumferential rib (20), and described concentric locking collar (5) is with respect to locating hole (11) is arranged on the chute (18); Each conical section on the corresponding check lock lever of concentric locking collar (5) (6) is circumferentially having three grooves (7) at least; Steel ball (2) is arranged in each groove (7), and elasticity lock sleeve (3) equates that with conical section quantity on the check lock lever (6) elasticity lock sleeve (3) is axially fixed on groove (7) homonymy on the concentric locking collar (5); On that section elasticity lock sleeve (3) the outwards resilient blade (4) of protuberance of arc is arranged all accordingly with groove (7); Described steel ball (2) offsets with the resilient blade (4) of corresponding conical section of check lock lever (6) and elasticity lock sleeve (3) respectively, and resilient blade (4) offsets with pipe one (1) and pipe two (16) inwalls, and hydraulic cylinder fixed cover (15) is installed on the described hydraulic cylinder (14); Hydraulic cylinder fixed cover (15) cooperates with check lock lever (6) inner thread; Hydraulic cylinder piston rod (17) is fixed on the piston rod fixed head (8) through hold-down nut (19), and piston rod fixed head (8) is circumferentially installed four bolts (9), and each bolt (9) is equipped with copper sheathing (10) and places chute (18) lining of check lock lever (6); Each bolt (9) is tightened on the locating hole (11) of concentric locking collar (5), and hydraulic cylinder (14) joins with external power supply (13).
2. oval pipe welding automatic centering fixture according to claim 1, it is characterized in that: described hydraulic cylinder (14) is a single-acting spring reset hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102838762A CN102773652A (en) | 2012-08-10 | 2012-08-10 | Automatic centering fixing device for welding of long round pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102838762A CN102773652A (en) | 2012-08-10 | 2012-08-10 | Automatic centering fixing device for welding of long round pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102773652A true CN102773652A (en) | 2012-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102838762A Pending CN102773652A (en) | 2012-08-10 | 2012-08-10 | Automatic centering fixing device for welding of long round pipe |
Country Status (1)
| Country | Link |
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| CN (1) | CN102773652A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586621A (en) * | 2013-11-28 | 2014-02-19 | 昆山华恒焊接股份有限公司 | Pipe flange welding locating device |
| CN110052694A (en) * | 2019-05-22 | 2019-07-26 | 福州大学 | Pipe-pipe magnetic pulse welding centralising device and centering method |
| CN111028640A (en) * | 2019-11-11 | 2020-04-17 | 中广核研究院有限公司 | Thermal state test device for control rod drive wire and centering method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06339792A (en) * | 1990-02-07 | 1994-12-13 | Agip Spa | Inner centering device |
| CN2333480Y (en) * | 1998-09-18 | 1999-08-18 | 郝晓东 | Internal expansion steel tube butt welding machine |
| CN201012440Y (en) * | 2007-01-27 | 2008-01-30 | 中国船舶重工集团公司第七○二研究所 | Flexible positioning device for square tubes soldering |
| CN201012446Y (en) * | 2007-01-27 | 2008-01-30 | 中国船舶重工集团公司第七○二研究所 | Flexible localizer for round tube soldering |
| CN201012445Y (en) * | 2007-01-27 | 2008-01-30 | 中国船舶重工集团公司第七○二研究所 | Round tube soldering positioner |
| CN202752793U (en) * | 2012-08-10 | 2013-02-27 | 浙江大学舟山海洋研究中心 | Automatic centering fixing device for welding long round pipes |
-
2012
- 2012-08-10 CN CN2012102838762A patent/CN102773652A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06339792A (en) * | 1990-02-07 | 1994-12-13 | Agip Spa | Inner centering device |
| CN2333480Y (en) * | 1998-09-18 | 1999-08-18 | 郝晓东 | Internal expansion steel tube butt welding machine |
| CN201012440Y (en) * | 2007-01-27 | 2008-01-30 | 中国船舶重工集团公司第七○二研究所 | Flexible positioning device for square tubes soldering |
| CN201012446Y (en) * | 2007-01-27 | 2008-01-30 | 中国船舶重工集团公司第七○二研究所 | Flexible localizer for round tube soldering |
| CN201012445Y (en) * | 2007-01-27 | 2008-01-30 | 中国船舶重工集团公司第七○二研究所 | Round tube soldering positioner |
| CN202752793U (en) * | 2012-08-10 | 2013-02-27 | 浙江大学舟山海洋研究中心 | Automatic centering fixing device for welding long round pipes |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586621A (en) * | 2013-11-28 | 2014-02-19 | 昆山华恒焊接股份有限公司 | Pipe flange welding locating device |
| CN103586621B (en) * | 2013-11-28 | 2015-12-02 | 昆山华恒焊接股份有限公司 | Pipe fitting flange apparatus for welding and positioning |
| CN110052694A (en) * | 2019-05-22 | 2019-07-26 | 福州大学 | Pipe-pipe magnetic pulse welding centralising device and centering method |
| CN111028640A (en) * | 2019-11-11 | 2020-04-17 | 中广核研究院有限公司 | Thermal state test device for control rod drive wire and centering method thereof |
| CN111028640B (en) * | 2019-11-11 | 2021-10-29 | 中广核研究院有限公司 | Thermal state test device for control rod drive wire and centering method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121114 |