CN106064285A - Link-type piston ring - Google Patents
Link-type piston ring Download PDFInfo
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- CN106064285A CN106064285A CN201610712383.4A CN201610712383A CN106064285A CN 106064285 A CN106064285 A CN 106064285A CN 201610712383 A CN201610712383 A CN 201610712383A CN 106064285 A CN106064285 A CN 106064285A
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- piston ring
- block
- free bearing
- end cover
- arc block
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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
- B23K37/0531—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 internal pipe alignment clamps
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a kind of link-type piston ring, including central shaft and two are worn connection dish on center shaft by bearing, it is provided with column between two connection dishes, the connection tray bottom being positioned at lower section is concordant with bottom central shaft, connection dish lower surface above is coaxially disposed a piston ring structure, and piston ring structure is provided with determines free bearing；On central shaft between two connection dishes, threaded one pushes away support nut, and when central axis, pushing away support nut to move up and down, the described support nut that pushes away is respectively arranged at two ends with upper end cover and bottom end cover up and down, and upper end cover is provided with can be with the jacking mechanism of the dynamic free bearing top contact being connected long connecting rod.The present invention is suitable in the internal support device of the welding of tunnel this class formation of joint, can repeatedly utilize, simple in construction.And utilizing the progressive error of mechanism, it is achieved that single operation action i.e. can control the different sequence of movement of large and small arc block, eliminates movement interference.
Description
Technical field
The present invention relates to a kind of piston ring structure, particularly relate to a kind of link-type piston ring.
Background technology
Tunnel joint is the important composition parts of store-vessel bottom, by cylinder, large flange dish, small flange plate and cone mouth four part group
Become, typically pass through welding fabrication.Owing to traditional manual welding mode of production labour intensity is big, production efficiency is not high, it is impossible to adapts to
High density, high intensity production task need, and domestic manufacturer carries out related automatic welding process research work in recent years one after another.And tunnel
Lacking fixture in joint automatic welding production process is a problem clearly.
Piston ring is structure common in internal support device, be usually used in machining, construction in, by apply external force, allow it
Health is long-pending becomes big, reaches to seal, props up interiors of products etc..
Present piston ring structure, generally annular structure band opening, the hardness such as the pig iron, spring steel typically selected by piston ring material
Higher and wear-resisting material, fragility is relatively big, during use, need to be guided by special device and increase piston ring swell opening, increase piston ring
Opening just increases deformation during piston ring assembling, owing to piston ring material fragility is relatively big, and piston ring deformation excessive during assembling
Being easily caused piston ring fracture, scrappage is higher., piston ring may be caused a certain degree of damage by the deformation of piston ring during assembling
Wound, after the piston ring with damage enters buffer inside, it is impossible to checks, and is unfavorable for repeatedly using.
Content of the invention
The purpose of the present invention is that offer one solves the problems referred to above, it is adaptable to be suitable for this class formation of tunnel joint
Welding internal support device in, can repeatedly utilize, simple in construction, energy and other piston ring respective outer side edges use, also can be independent
The link-type piston ring using.
To achieve these goals, the technical solution used in the present invention is such that a kind of link-type piston ring, including center
Axle and two are worn connection dish on center shaft by bearing, are provided with column between two connection dishes, and the connection being positioned at lower section is tried to get to the heart of a matter
Portion is concordant with bottom central shaft, and connection dish lower surface above is coaxially disposed a piston ring structure；
Described piston ring structure includes the piston ring seat of an annular, and piston ring seat lower surface is radially provided with several slide rails, sets in slide rail
Having slide block, slide block lower surface connects an arc block, and described arc block is horizontally disposed with, and the one side away from the base center of circle is arc
Face, when slide block is inside slide rail, the arcwall face of arc block can be spliced into a complete circumference, and described arc block size is not
Together, being divided into big arc block and little arc block, and large and small arc block being interspersed, arc block lower surface is provided with determines free bearing；
On central shaft between two connection dishes, threaded one pushes away support nut, and when central axis, pushes away support nut and move up and down,
The described support nut that pushes away is respectively arranged at two ends with upper end cover and bottom end cover up and down, pushes away support nut side and is provided with perpendicular chute, connects in perpendicular chute
Connect the dynamic free bearing that can slide up and down along perpendicular chute, determine free bearing and the setting of dynamic free bearing one_to_one corresponding, on big arc block determine free bearing and its
Being provided with short connecting rod between corresponding dynamic free bearing, remaining is determined free bearing and is provided with long connecting rod between free bearing with corresponding moving；
Upper end cover be provided with can with the jacking mechanism of the dynamic free bearing top contact being connected long connecting rod, bottom end cover be provided with can be connected
The jacking mechanism of contact bottom the dynamic free bearing of short connecting rod.
As preferably: described jacking mechanism includes adjustment screw and jacking block with spring, adjust screw and be fixed on upper end cover
Or on bottom end cover, spring one end is fixed on adjustment screw, and the other end connects jacking block, and the jacking block on upper end cover is thick, bottom end cover
Jacking block is thin, and described jacking block is all towards the middle part of two connection dishes.
As preferably: described central shaft top connects handwheel.
Compared with prior art, it is an advantage of the current invention that: disclosure is particularly well suited to this kind of store-vessel bottom of tunnel joint
Welding fabrication uses, and utilizes the progressive error of mechanism, it is achieved that it is suitable that single operation action i.e. can control the different action of large and small arc block
Sequence, eliminates movement interference.And, after the present invention that bounces back after strutting, indeformable, can repeatedly use.The present invention and displacement
Machine connects, and by the automatic welding of a plurality of weld seam of numerical control program control realization product, has compact conformation, simple to operation,
Product is installed quick reliable, can meet product batch automatic welding and produce needs.
The maximum feature of link-type piston ring is exactly the progressive error utilizing mechanism, it is achieved that single operation action is i.e. controllable
The different sequence of movement of large and small arc block, eliminates movement interference.Handle is used for rotary middle spindle.
Brief description
Fig. 1 is a kind of tunnel joint design schematic diagram in prior art；
Fig. 2 is the schematic diagram that the present invention applies in a kind of compound inner support structure；
Fig. 3 is the sectional view of Fig. 2；
Fig. 4 is the structural representation of the present invention；
Fig. 5 is the A partial enlarged drawing of Fig. 4；
Fig. 6 is the structural representation of Wedge-type piston ring；
Fig. 7 is another angle sectional view of Wedge-type piston ring；
Fig. 8 is soft dog chuck structural representation；
Fig. 9 is flange shaft structural representation；
Figure 10 is the stereogram looking up angle of piston ring structure.
In figure: the 1st, bearing；2nd, flange shaft；3rd, soft dog chuck；4th, link-type piston ring；5th, Wedge-type piston ring；6th, tunnel connects
Head；7th, piston ring structure；201st, flange；202nd, axis body；301st, standard chuck；302nd, soft pawl；401st, central shaft；402nd, connection dish；
403rd, column；404th, free bearing is determined；405th, free bearing is moved；406th, support nut is pushed away；407th, upper end cover；408th, bottom end cover；409th, bearing；
410th, short connecting rod；411st, long connecting rod；412nd, jacking mechanism；413rd, handwheel；501st, trapezoidal nut；502nd, gland；503rd, shrouding；
504th, base plate；505th, back-moving spring；506th, plug screw；507th, inner cone block；508th, handle；509th, stop pin；601st, little flange；602、
Cone mouth；603rd, cylinder；604th, large flange；701st, piston ring seat；702nd, slide rail；703rd, slide block；704th, big arc block；705th, little arc block.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Embodiment 1: see Fig. 1 to Figure 10, a kind of link-type piston ring, including central shaft 401 and two are worn by bearing 409
The connection dish 402 being enclosed within central shaft 401, is provided with column 403 between two connection dishes 402, be positioned at lower section connection dish 402 bottom with
Bottom central shaft 401 concordant, connection dish 402 lower surface above is coaxially disposed a piston ring structure 7；
Described piston ring structure 7 includes the piston ring seat 701 of an annular, and piston ring seat 701 lower surface is radially provided with several slide rails
702, it is provided with slide block 703 in slide rail 702, slide block 703 lower surface connects an arc block, and described arc block is horizontally disposed with, and away from
The one side in the base center of circle is arcwall face, and when slide block 703 is positioned at slide rail 702 inner side, the arcwall face of arc block can be spliced into one
Complete circumference, described arc block size is different, be divided into big arc block 704 and little arc block 705, and staggered point of large and small arc block 705
Cloth, arc block lower surface is provided with determines free bearing 404；
On central shaft 401 between two connection dishes 402, threaded one pushes away support nut 406, and when central shaft 401 rotates, pushes away support
Nut 406 moves up and down, and the described support nut that pushes away is respectively arranged at two ends with upper end cover 407 and bottom end cover 408 about 406, push away support nut
406 sides are provided with perpendicular chute, connect the dynamic free bearing 405 that can slide up and down along perpendicular chute, determine free bearing 404 and dynamic free bearing in perpendicular chute
405 one_to_one corresponding are arranged, and determining on big arc block 704 is provided with short connecting rod 410 between the corresponding dynamic free bearing 405 of free bearing 404, and remaining is fixed
Free bearing 404 is provided with long connecting rod 411 with corresponding moving between free bearing 405；
Upper end cover 407 is provided with can be with the jacking mechanism 412 of dynamic free bearing 405 top contact being connected long connecting rod 411, bottom end cover
408 be provided with can be with the jacking mechanism 412 that contacts bottom the dynamic free bearing 405 connecting short connecting rod 410.
In the present embodiment: described jacking mechanism 412 includes adjustment screw and jacking block with spring, adjust screw and be fixed on
On end cap 407 or bottom end cover 408, spring one end is fixed on adjustment screw, and the other end connects jacking block, the top on upper end cover 407
Block is thick, and the jacking block of bottom end cover 408 is thin, and described jacking block is all towards the middle part of two connection dishes 402；Described central shaft 401 top is even
Connecting handle 508.
When central shaft 401 rotates, drive pushes away support nut 406 and moves up and down.When assuming stretching action, in turn clockwise
Mandrel 401, central shaft 401 pushes away support nut 406 by trapezoidal thread driving and moves up, and the jacking mechanism 412 of bottom end cover 408 is first
Work, its jacking block, under the effect of initial tension of spring, is first seen that the dynamic free bearing 405 of corresponding short connecting rod 410 moves, and then is promoted
Big arc block 704 is moved radially outwards prior to little arc block 705；Owing to the corresponding dynamic free bearing 405 of long connecting rod 411 has one section of null
Journey, therefore action will be late by short connecting rod 410, i.e. when the upper surface of bottom end cover 408 touches the corresponding dynamic free bearing of long connecting rod 411
After 405, long connecting rod 411 is just driven to promote little arc block 705 to be moved radially outwards, product stretching the most at last.
Lax action and stretching action contrast.Turn central shaft 401 counterclockwise, drives and pushes away support nut 406 to moving down
Dynamic, the jacking mechanism 412 of upper end cover 407 works, and first its jacking block drives corresponding long connecting rod 411 under the effect of preloading spring
Dynamic free bearing 405 action, and then promote little arc block 705 to bounce back prior to big arc block 704；Due to the corresponding dynamic free bearing 405 of short connecting rod 410
Having one section of idle stroke, therefore retracting action will be late by long connecting rod 411, i.e. when upper end cover 407 lower surface contact short connecting rod 410 is right
After the dynamic free bearing 405 answered, short connecting rod 410 is just driven to promote big arc block 704 to bounce back, final fully relaxed product.
Embodiment 2:
A kind of composite construction internal support device, including the flange shaft 2 being vertically arranged, described flange shaft 2 includes axis body 202 and is positioned at axle
The flange 201 at body 202 top, described axis body 202 upper sleeve through has bearing 1 and a soft dog chuck 3, wherein bottom bearing 1 with axis body 202
Bottom is concordant and fixing with axis body 202 to be connected, and bearing 1 upper surface is connected with soft dog chuck 3, also includes link-type piston ring 4 He
One Wedge-type piston ring 5；Described link-type link-type piston ring 4 is identical with embodiment 1 structure.
Described Wedge-type piston ring 5 structure is: include plug screw 506, and plug screw 506 bottom is shrunk to truncated cone-shaped, plug screw 506 top
Outer wall thread connects a trapezoidal nut 501, and constitutes left-handed trapezoidal thread pair with this trapezoidal nut 501, is provided with bottom plug screw 506
Base plate 504, and be connected by stop pin 509 is fixing with base plate 504, base plate 504 center is provided with same size coaxial with plug screw 506
Through hole, base plate 504 upper surface is fixedly connected sequentially from top to bottom a piston ring structure the 7th, upper sealing plate 503 and gland 502, described ladder
On shape nut 501, level is provided with around its outer wall boss, and boss is positioned between upper sealing plate 503 and gland 502；
Described piston ring structure 7 includes the piston ring seat 701 of an annular, and piston ring seat 701 lower surface is radially provided with several slide rails
702, it is provided with slide block 703 in slide rail 702, slide block 703 lower surface connects an arc block, and described arc block is horizontally disposed with, and away from
The one side in the base center of circle is arcwall face, and when slide block 703 is inside slide rail 702, it is complete that the arcwall face of arc block can be spliced into one
Whole circumference, described arc block size is different, be divided into big arc block 704 and little arc block 705, and large and small arc block 705 is interspersed；
Arc block and slide rail 702 are provided with an inner cone block 507, described inner cone block 507 and arc block towards the one side at plug screw 506 center
Fixing connect, and and slide rail 702 between have gap, inner cone block 507 is provided with the counterbore of level, slide rail 702 towards the one side of slide rail 702
And it between inner cone block 507, is provided with the guider screw of level, guider screw one end is fixed on slide rail 702, and the other end stretches in counterbore
And coordinate with counterbore wide arc gap, guider screw upper sleeve through has back-moving spring 505, and described second controlling organization is for being arranged on trapezoidal spiral shell
Female 501 outer walls drive its handle 508 rotating.In addition, in the present embodiment, back-moving spring 505 pretightning force of corresponding little arc block 705
Greatly, back-moving spring 505 pretightning force of corresponding big arc block 704 is little.
In the present invention: the operation principle of piston ring structure 7 is: owing to slide rail 702 is to be radially arranged along piston ring seat 701, institute
Also move radially along piston ring seat 701 with the slide block 703 in slide rail 702, thus drive arc block to move radially along piston ring seat 701,
When slide block 703 is inside slide rail 702, piston ring structure 7 is shunk, otherwise, piston ring structure 7 struts.Slide rail 702 two ends set
Putting surplus, slide block 703 cannot slide into inner side and the outermost of slide rail 702, and when slide block 703 bounces back to the arc of arc block
When face can be spliced into a complete circumference, the now original operating position for piston ring.It is softened state during piston ring work, after retraction
For the SBR of mounting or dismounting product to be welded, after strutting, the structure that can be circular to inwall is supported.
Arc block is divided into big arc block 704 and little arc block 705 by size difference, in conjunction with different driving structures, Ke Yishi
Now strut in batches, shrink control.
The transmission of link-type piston ring 4 and operation principle be: when central shaft 401 rotates, and drives and pushes away support nut and transport about 406
Dynamic.When assuming stretching action, turn central shaft 401 clockwise, central shaft 401 by trapezoidal thread drive push away support nut 406 to
Upper movement, the jacking mechanism 412 of bottom end cover 408 first works, and its jacking block, under the effect of initial tension of spring, first drives corresponding short
The dynamic free bearing 405 of connecting rod 410 moves, and then promotes big arc block 704 to be moved radially outwards prior to little arc block 705；Connect due to long
The corresponding dynamic free bearing 405 of bar 411 has one section of idle stroke, and therefore action will be late by short connecting rod 410, i.e. upper when bottom end cover 408
End contact, to after the corresponding dynamic free bearing 405 of long connecting rod 411, just drives long connecting rod 411 to promote little arc block 705 radially to move
Dynamic, product stretching the most at last.
Lax action and stretching action contrast.Turn central shaft 401 counterclockwise, drives and pushes away support nut 406 to moving down
Dynamic, the jacking mechanism 412 of upper end cover 407 works, and first its jacking block drives corresponding long connecting rod 411 under the effect of preloading spring
Dynamic free bearing 405 action, and then promote little arc block 705 to bounce back prior to big arc block 704；Due to the corresponding dynamic free bearing 405 of short connecting rod 410
Having one section of idle stroke, therefore retracting action will be late by long connecting rod 411, i.e. when upper end cover 407 lower surface contact short connecting rod 410 is right
After the dynamic free bearing 405 answered, short connecting rod 410 is just driven to promote big arc block 704 to bounce back, final fully relaxed product.
The feature of link-type piston ring 4 maximum is exactly the progressive error utilizing mechanism, it is achieved that single operation action is i.e. controllable
The different sequence of movement of large and small arc block 705, eliminates movement interference.Handwheel 413 is used for rotary middle spindle 401.
The operation principle of Wedge-type piston ring 5 is: during stretching action, the handle 508 on turn trapezoidal nut 501 clockwise,
Driving plug screw 506 to move down by left-handed trapezoidal thread, owing to plug screw 506 bottom crimp becomes truncated cone-shaped, plug screw 506 is to moving down
Dynamic, diameter becomes larger relatively, and then promotes inner cone block 507 radially to expand until each arc block is by product stretching.It passes
Dynamic relation is: inner cone block 507 promotes arc block, and arc block drives arc block.
Be connected owing to inner cone block 507 and arc block are fixing, and and slide rail 702 between have gap, so inner cone block 507 can promote
Arc block and slide rail 702 form relative displacement.
During loose operations, turn handle 508 counterclockwise, drive plug screw 506 move up, plug screw 506 lower tapered surface with interior
Produce after certain interval between cone block 507 conical surface, under the effect of back-moving spring 505, back-moving spring 505 promote inner cone block 507 to
Plug screw 506 home position moves, and the related each arc block of inner cone block 507 radially bounces back, until product is fully relaxed.Due to little arc block
The pre-pressing force of 705 back-moving springs 505, more than the pre-pressing force of big arc block 704 back-moving spring 505, can realize little arc block 705 first
Bounce back in big arc block 704.Its feature is also with the progressive error of mechanism, it is achieved that single operation action i.e. can control large and small arc
The different sequence of movement of block 705, eliminates movement interference.
The assembly method of this composite construction is: insert in bearing 1 bottom flange shaft 2, and fixing with bearing 1 is connected, soft pawl
Chuck 3 is enclosed within flange shaft 2, and fixes with bearing 1, reassembles, the column 403 of link-type piston ring 4, the top with flange shaft 2
Flange 201 fix, Wedge-type piston ring 5 is set on the central shaft 401 of link-type piston ring 4, the base plate 504 of Wedge-type piston ring 5
Fix with the connection dish 402 above link-type piston ring 4.
When the present invention welds for tunnel joint 6, first the present invention is locating and connect on positioner by bearing 1, so
Rear turn handwheel 413, utilizes link-type piston ring 4 by cylinder 603 and large flange 604 stretching, operates chuck handle simultaneously, utilizes soft pawl
302 pairs of cylinder 603 hypomeres carry out auxiliary and support, and are installed after completing and can carry out the automatic welding of Article 1 circular weld；Upset product
After, utilize link-type piston ring 4 that cylinder 603 and cone mouth 602 are held greatly stretching, utilize soft dog chuck 3 to assist 603 sections of cylinder simultaneously
Support, the automatic welding of Article 2 circular weld can be carried out afterwards；Finally, utilize Wedge-type piston ring 5 by cone mouth 602 small end and little
Flange 601 stretching, bottom uses soft dog chuck 3 to carry out auxiliary equally and supports, is installed after completing and welds Article 3 circumferential weld.
Soft dog chuck 3 is made up of standard chuck 301 and soft pawl 302.The top pawl of standard chuck 301 is removed, then by soft
Pawl 302 is connected in base jaw, and car i.e. can be used for the support of 603 sections of cylinder, using method and standard chuck 301 1 after repairing support diameter
Cause, i.e. can control stretching and the retraction of soft pawl 302 with special spanner operation.
It can thus be appreciated that: product in the present invention, it is possible not only to be applied individually to any in the strutting of workpiece, simultaneously also can be with other
Inner support structure combines, and is applied in combining structure.
Claims (3)
1. a link-type piston ring, it is characterised in that: include that central shaft and two are worn connection on center shaft by bearing
Dish, is provided with column between two connection dishes, and the connection tray bottom being positioned at lower section is concordant with bottom central shaft, under connection dish above
Surface is coaxially disposed a piston ring structure；
Described piston ring structure includes the piston ring seat of an annular, and piston ring seat lower surface is radially provided with several slide rails, sets in slide rail
Having slide block, slide block lower surface connects an arc block, and described arc block is horizontally disposed with, and the one side away from the base center of circle is arc
Face, when slide block is inside slide rail, the arcwall face of arc block can be spliced into a complete circumference, and described arc block size is not
Together, being divided into big arc block and little arc block, and large and small arc block being interspersed, arc block lower surface is provided with determines free bearing；
On central shaft between two connection dishes, threaded one pushes away support nut, and when central axis, pushes away support nut and move up and down,
The described support nut that pushes away is respectively arranged at two ends with upper end cover and bottom end cover up and down, pushes away support nut side and is provided with perpendicular chute, connects in perpendicular chute
Connect the dynamic free bearing that can slide up and down along perpendicular chute, determine free bearing and the setting of dynamic free bearing one_to_one corresponding, on big arc block determine free bearing and its
Being provided with short connecting rod between corresponding dynamic free bearing, remaining is determined free bearing and is provided with long connecting rod between free bearing with corresponding moving；
Upper end cover be provided with can with the jacking mechanism of the dynamic free bearing top contact being connected long connecting rod, bottom end cover be provided with can be connected
The jacking mechanism of contact bottom the dynamic free bearing of short connecting rod.
2. link-type piston ring according to claim 1, it is characterised in that: described jacking mechanism includes the adjustment spiral shell with spring
Nail and jacking block, adjust screw and be fixed on upper end cover or bottom end cover, and spring one end is fixed on adjustment screw, and the other end connects top
Block, the jacking block on upper end cover is thick, and the jacking block of bottom end cover is thin, and described jacking block is all towards the middle part of two connection dishes.
3. link-type piston ring according to claim 1, it is characterised in that: described central shaft top connects handwheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610712383.4A CN106064285B (en) | 2016-08-24 | 2016-08-24 | Link-type piston ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610712383.4A CN106064285B (en) | 2016-08-24 | 2016-08-24 | Link-type piston ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106064285A true CN106064285A (en) | 2016-11-02 |
| CN106064285B CN106064285B (en) | 2017-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610712383.4A Active CN106064285B (en) | 2016-08-24 | 2016-08-24 | Link-type piston ring |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106541245A (en) * | 2017-01-20 | 2017-03-29 | 烟台瓦鲁机器人自动化有限公司 | A kind of inner bearing type jointed connecting rod device of the logical protective gas in the back side |
| CN106695077A (en) * | 2017-01-20 | 2017-05-24 | 烟台瓦鲁机器人自动化有限公司 | Inner support type wedge device inflated with protective gas at the back |
| CN107160093A (en) * | 2017-06-21 | 2017-09-15 | 上海森大机械制造有限公司 | A kind of encircling welding equipment for supported rod erecting |
| CN109940335A (en) * | 2019-04-25 | 2019-06-28 | 昆山贺崧焊割设备有限公司 | Circular Thin pipe butt welding tolerance limitless defense right welding fixture |
| CN110270735A (en) * | 2019-06-21 | 2019-09-24 | 宝鸡石油机械有限责任公司 | A kind of marine riser tightening hoop bearing ring assembly welding method |
| CN110497125A (en) * | 2019-07-09 | 2019-11-26 | 四川艾普耐斯油气工程服务有限公司 | A kind of dovetail section formula flange abutting joint device |
| CN112475754A (en) * | 2020-10-30 | 2021-03-12 | 哈尔滨哈飞航空工业有限责任公司 | Accurate inner mold positioning device for large-size cylindrical thin-walled part |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106541245A (en) * | 2017-01-20 | 2017-03-29 | 烟台瓦鲁机器人自动化有限公司 | A kind of inner bearing type jointed connecting rod device of the logical protective gas in the back side |
| CN106695077A (en) * | 2017-01-20 | 2017-05-24 | 烟台瓦鲁机器人自动化有限公司 | Inner support type wedge device inflated with protective gas at the back |
| CN107160093A (en) * | 2017-06-21 | 2017-09-15 | 上海森大机械制造有限公司 | A kind of encircling welding equipment for supported rod erecting |
| CN109940335A (en) * | 2019-04-25 | 2019-06-28 | 昆山贺崧焊割设备有限公司 | Circular Thin pipe butt welding tolerance limitless defense right welding fixture |
| CN110270735A (en) * | 2019-06-21 | 2019-09-24 | 宝鸡石油机械有限责任公司 | A kind of marine riser tightening hoop bearing ring assembly welding method |
| CN110497125A (en) * | 2019-07-09 | 2019-11-26 | 四川艾普耐斯油气工程服务有限公司 | A kind of dovetail section formula flange abutting joint device |
| CN112475754A (en) * | 2020-10-30 | 2021-03-12 | 哈尔滨哈飞航空工业有限责任公司 | Accurate inner mold positioning device for large-size cylindrical thin-walled part |
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| CN106064285B (en) | 2017-08-01 |
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Address after: 610199 Chengdu 189 economic and Technological Development Zone (Longquanyi District), Sichuan. Patentee after: Sichuan spaceflight Long March Equipment Manufacturing Co., Ltd. Address before: 610199 No. 189, road, Longquan Town, Longquanyi District, Sichuan. Patentee before: Changzheng Machinery Factory, China Astronautics Science and Technology Group Co |