CN109500534A - A kind of cylinder internal support device - Google Patents

A kind of cylinder internal support device Download PDF

Info

Publication number
CN109500534A
CN109500534A CN201811449867.XA CN201811449867A CN109500534A CN 109500534 A CN109500534 A CN 109500534A CN 201811449867 A CN201811449867 A CN 201811449867A CN 109500534 A CN109500534 A CN 109500534A
Authority
CN
China
Prior art keywords
bracer
annulus
cylinder
pedestal
drive link
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811449867.XA
Other languages
Chinese (zh)
Inventor
石璟
贺飞飞
刘永坡
李光耀
贺达龙
林刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Aerospace Changzheng Equipment Manufacturing Co Ltd
Original Assignee
Sichuan Aerospace Changzheng Equipment Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sichuan Aerospace Changzheng Equipment Manufacturing Co Ltd filed Critical Sichuan Aerospace Changzheng Equipment Manufacturing Co Ltd
Priority to CN201811449867.XA priority Critical patent/CN109500534A/en
Publication of CN109500534A publication Critical patent/CN109500534A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426Fixtures for other work

Abstract

The present invention relates to the internal support devices held round for large thin-wall cylinder section, it includes round base, base perimeter is set and passes through the bracer that guiding device can radially stretch, synchronization mechanism is set in the pedestal inner ring, the synchronization mechanism includes the synchronous annulus that can around base axis be rotated concentric with pedestal, and the bracer lower part connects synchronous annulus by bracer drive link;At least be connected a cylinder on pedestal, and cylinder connects synchronous annulus by annulus drive link.The present invention can be achieved on support mechanism each bracer moved synchronously along radial direction, so that the device be made to have variable diameter function, to adapt to large thin-wall cylinder section due to foozle caused by variation in diameter problem.After bracer moves in place along radial direction, crank mechanism used in bracer connecting rod close to " dead point " position, meanwhile, the multi-connecting-rod mechanism that is connected of driving cylinder is also close to " dead point " position, so that whole device be made to obtain biggish support stiffness.The present invention also reduces the requirement to the driving capability of driving device while mitigating labor intensity, helps to simplify inner support structure, reduces total quality.

Description

A kind of cylinder internal support device
Technical field
The present invention relates to the internal support device held round for large thin-wall cylinder section, especially a kind of achievable supporting module is half Diameter direction is synchronous to carry out radius adjusting, and has and carry out the internal support device of locking in radius adjusting position
Background technique
Large-scale tank is mainly made of components such as end socket, stack shell, flanges, wherein stack shell be by multistage thin wall cylinder section welding and At.The single flatness of cylinder section end face and the verticality of itself and own axes, will affect the quality of connection of weld seam on tank, And the form accuracy of final tank.Since thin wall cylinder section stiffness by itself is weaker, it is easily deformed under external force.In order to obtain Good end surface shape is obtained, and provides convenience for subsequent processing work, usually holds round tooling by internal stay tool, also referred to as, By shoring along multiple bracers that radial direction stretches out to the region where cylinder section end face, make it that girth weld be made to form one A complete circle is just able to satisfy tank girth welding requirement.Traditional internal support device, bracer top are arcuate structure, multiple supports Form a circle at the top of the arc of block, bracer lower part connecting screw, by screw rod rotate driving bracer to cylinder section end region into Row is held out against, and is held round.Although this mode separately adjustable to single bracer have the advantages that flexibly it is convenient, adaptable, Also include some shortcomings:
1. holding round, procedure regulation is cumbersome, labor intensity of workers is big.Mobile single bracer, needs worker's turn nut, drives Screw rod is extended or retracted to be adjusted.For the considerations of obtaining larger pressure, screw flight lift angle is typically small, causes Adjust the increase of the workload of single bracer.With the increase for the feature radius size for needing to hold round, the quantity of bracer can be into one Step increases, so that this contradiction further protrudes.
2. each bracer self-movement, cannot achieve the synchronous adjustment of radius.In the actual production process, due to needing to support Always there are certain deviations for round thin wall cylinder section diameter, thus are difficult to determine that the final of each bracer holds out against position before adjusting It sets.In order to make thin wall cylinder section obtain ideal end face circularity, adjustment process is exactly to come in constantly extended or retracted single bracer Grope the process for being suitble to hold out against position, is further exacerbated by the fussy degree for adjusting work.
Because internal stay tool has a wide range of applications occasion, those skilled in the art have carried out the research of many large-scale internal stay tools Work, and propose the mentality of designing that artificial stretching or the retraction for realizing bracer is substituted using cylinder.But this is only reduced The labor intensity of worker, there is no solving traditional internal stay tool to be difficult to realize inner support radius synchronous adjustment, to obtain good circle The problem of spending.
Summary of the invention
It, can the purpose of the present invention is overcoming the deficiencies of the prior art and provide a kind of each bracer to move synchronously in radial direction The cylinder internal support device of internal support device radius is realized in a certain range.
In order to achieve the above object, present invention employs following technical proposals:
The support that base perimeter can radially stretch by guiding device is arranged in cylinder internal support device, including round base Block, is arranged synchronization mechanism in the pedestal inner ring, the synchronization mechanism include one with pedestal it is concentric can around base axis into The synchronization annulus of row rotation, the bracer lower part connect synchronous annulus by bracer drive link;At least be connected a gas on pedestal Cylinder, cylinder connect synchronous annulus by annulus drive link.
Above-mentioned apparatus between synchronous annulus and bracer, by connecting bracer drive link, forms slider-crank mechanism.When Cylinder drives annulus drive link to drive synchronous annulus rotation, drives each piece of bracer to realize driving bracer drive link and synchronizes It extends radially and retraction acts, to realize the synchronous adjustment of bracer radially.
The quantity of above-mentioned cylinder is arranged, and can be adaptively adjusted according to the size of driving annulus rotatory force.
Further improve is that the driving swing arm hinged with annulus drive link, cylinder are additionally provided on the pedestal Piston rod is connect with hinge.Annulus drive link and driving swing arm form two link mechanisms, and cylinder action is in two link mechanisms On hinge, by the flexible rotation for being converted to synchronous annulus of cylinder, and then bracer is driven.Two link mechanisms and drive link The long cooperation of bar, can be when bracer reaches predetermined position, and slider-crank mechanism enters " dead point " position, to make entire internal support device Obtain maximum support stiffness.
Further improve is that the synchronous annulus is carried out by fixed arc guide rail on the base around base axis Rotation.Annulus is rotated by guide rail, guarantees that more bracers are moved synchronously along radial direction, to guarantee entire mechanism in different directions The synchronism of upper variable diameter process.And cooperate, cooperation precision is high, and synchronous annulus rotation friction is small, and rotation is flexible.
Further improve is that the bracer is driven through the straight line being fixed on base perimeter by bracer drive link Guide rail radially stretches.Bracer, along pedestal radial translation, is flexibly stretched by linear guide.
The invention has the following advantages that
1, each bracer is moved synchronously along radial direction on the achievable interior support mechanism of the present invention, so that the device be made to have variable diameter Function, to adapt to large thin-wall cylinder section due to foozle caused by variation in diameter problem.
2, its variable diameter function is based on slider-crank mechanism, whole device can be made to obtain larger by " dead point " of the mechanism Support stiffness.
3, driving device of the mechanism based on cylinder and two link mechanisms also drops while mitigating labor intensity The requirement of the low driving capability to driving device helps to simplify inner support structure, reduces total quality.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the embodiment of the present invention.
Fig. 2 is original state in use process of the embodiment of the present invention.
Fig. 3 is use process of embodiment of the present invention support round shape state.
Appended drawing reference: the synchronous annulus 3- cylinder 4- annulus drive link 5- driving swing arm 6- bracer of 1- pedestal 2- drives Dynamic 10 thin wall cylinder section of connecting rod 7- annulus guide rail 8- bracer 9- bracer guide rail.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
Embodiment 1:
Synchronization mechanism, gas on the base is arranged in a kind of internal support device as shown in Figure 1, including round base 1, bracer 3 Cylinder jacking mechanism and bracer sliding equipment.Synchronization mechanism includes a synchronous annulus 2 concentric with pedestal, and synchronous annulus passes through solid Fixed annulus guide rail 7 on the base is rotated around base axis.In base perimeter, with 30 ° for interval, equidistantly distributed 12 A bracer 8, bracer are radially stretched by the straight line bracer guide rail 9 being fixed on base perimeter.Synchronous annulus and bracer lower part Between, it is connected by bracer drive link 6, forms slider-crank mechanism.Corresponding setting two is made of cylinder 3 on pedestal Cylinder jacking mechanism, the driving swing arm 5 of one end connection on the base is hinged with annulus drive link 4, forms two link mechanisms, gas The cylinder piston rod of cylinder jacking mechanism acts on the hinge of two link mechanisms, and flexible by cylinder is converted to synchronous annulus Rotation, and then bracer is driven to realize extended and retracted movement.
Internal support device its to hold round process as follows:
1, as shown in Fig. 2, the cylinder being connected on pedestal 1 is withdrawn, synchronous annulus is driven to rotate counterclockwise.In slide crank Under the action of block mechanism, 12 groups of bracers are retracted to most inner side along radial direction;
2, the thin wall cylinder section 10 of original state is placed in internal support device;
3, cylinder is stretched out, synchronous annulus is driven to rotate clockwise.Each bracer is along the synchronous stretching of radial direction.Stop to bracer When only, it is ensured that each bracer is contacted with cylinder section, finally holds round the realization of cylinder section.
The invention is not limited to specific embodiments above-mentioned.The present invention, which expands to, any in the present specification to be disclosed New feature or any new combination, and disclose any new method the step of or any new combination.

Claims (4)

1. a kind of cylinder internal support device, including round base are arranged in what base perimeter can radially be stretched by guiding device Bracer, it is characterised in that: synchronization mechanism is set in the pedestal inner ring, the synchronization mechanism include one with pedestal it is concentric can The synchronization annulus rotated around base axis, the bracer lower part connect synchronous annulus by bracer drive link;On pedestal At least be connected a cylinder, and cylinder connects synchronous annulus by annulus drive link.
2. a kind of cylinder internal support device according to claim 1, it is characterised in that: be additionally provided on the pedestal and annulus The hinged driving swing arm of drive link, cylinder piston rod are connect with hinge.
3. a kind of cylinder internal support device according to claim 1, it is characterised in that: the synchronous annulus is by being fixed on base Arc guide rail on seat is rotated along base axis.
4. a kind of cylinder internal support device according to claim 1, it is characterised in that: the bracer is driven by bracer drive link It is dynamic radially to be stretched by the linear guide being fixed on base perimeter.
CN201811449867.XA 2018-11-30 2018-11-30 A kind of cylinder internal support device Pending CN109500534A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811449867.XA CN109500534A (en) 2018-11-30 2018-11-30 A kind of cylinder internal support device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811449867.XA CN109500534A (en) 2018-11-30 2018-11-30 A kind of cylinder internal support device

Publications (1)

Publication Number Publication Date
CN109500534A true CN109500534A (en) 2019-03-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811449867.XA Pending CN109500534A (en) 2018-11-30 2018-11-30 A kind of cylinder internal support device

Country Status (1)

Country Link
CN (1) CN109500534A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109786054A (en) * 2019-04-04 2019-05-21 江苏神马电力股份有限公司 Inner support core model
CN111805165A (en) * 2020-09-01 2020-10-23 北京航天新风机械设备有限责任公司 Semi-closed cabin welding internal stay frock
CN113172122A (en) * 2021-04-26 2021-07-27 中国铁建重工集团股份有限公司 Synchronous circle supporting device for annular workpiece

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2806040Y (en) * 2005-07-19 2006-08-16 中国石油天然气集团公司 Large-expansion power pipe interior fitting device
CN105773040A (en) * 2016-05-11 2016-07-20 上海交通大学 Internal folding/unfolding clamp for annular member
CN106041402A (en) * 2016-08-03 2016-10-26 成都焊科机器人有限公司 Cylinder positioning and clamping mechanism suitable for automobile postprocessor round cylinder end cover
CN206052698U (en) * 2016-09-20 2017-03-29 中冶建工集团有限公司 Casing internal support device
CN106808625A (en) * 2015-11-28 2017-06-09 青岛华盛橡胶有限公司 A kind of shaping mechanism for tire inner support

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2806040Y (en) * 2005-07-19 2006-08-16 中国石油天然气集团公司 Large-expansion power pipe interior fitting device
CN106808625A (en) * 2015-11-28 2017-06-09 青岛华盛橡胶有限公司 A kind of shaping mechanism for tire inner support
CN105773040A (en) * 2016-05-11 2016-07-20 上海交通大学 Internal folding/unfolding clamp for annular member
CN106041402A (en) * 2016-08-03 2016-10-26 成都焊科机器人有限公司 Cylinder positioning and clamping mechanism suitable for automobile postprocessor round cylinder end cover
CN206052698U (en) * 2016-09-20 2017-03-29 中冶建工集团有限公司 Casing internal support device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109786054A (en) * 2019-04-04 2019-05-21 江苏神马电力股份有限公司 Inner support core model
CN109786054B (en) * 2019-04-04 2020-06-26 江苏神马电力股份有限公司 Internal stay mandrel
CN111805165A (en) * 2020-09-01 2020-10-23 北京航天新风机械设备有限责任公司 Semi-closed cabin welding internal stay frock
CN113172122A (en) * 2021-04-26 2021-07-27 中国铁建重工集团股份有限公司 Synchronous circle supporting device for annular workpiece

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Application publication date: 20190322

RJ01 Rejection of invention patent application after publication