CN106862403B - Large-diameter steel pipe dilates mold - Google Patents
Large-diameter steel pipe dilates mold Download PDFInfo
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- CN106862403B CN106862403B CN201710048143.3A CN201710048143A CN106862403B CN 106862403 B CN106862403 B CN 106862403B CN 201710048143 A CN201710048143 A CN 201710048143A CN 106862403 B CN106862403 B CN 106862403B
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- steel pipe
- transmission shaft
- bellmouth
- bearing housing
- plain bearing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/02—Enlarging
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- Mechanical Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The invention discloses a kind of large-diameter steel pipes to dilate mold, is a kind of adjustable mold of diameter.It includes transmission shaft, sleeve and flexible cartridge module, axis is connected with the first power source, sleeve is nested on transmission shaft and is arranged concentrically, end is connected with the second power source, flexible cartridge module includes bellmouth and is molded arc formwork, plain bearing housing and stud bolt assemblies, bellmouth is molded arc formwork and is circumferentially angularly evenly arranged along transmission shaft, bellmouth shaping arc formwork is movably connected in by positive and negative silk stud bolt assemblies on the plain bearing housing, the middle position of plain bearing housing is provided with through hole, through hole is installed by slide engaging and disengaging component and ring flange, wherein described ring flange is fixedly connected with sleeve, plain bearing housing is flexibly connected by slide engaging and disengaging component with what the transmission shaft was only slided in the axial direction.The large-diameter steel pipe shaping mould of the present invention has the advantages of easy to use, making precision is high and efficient.
Description
Technical field
The invention is related to a kind of mold, specifically a kind of large-diameter steel pipe shaping mould.
Background technology
Large-diameter steel pipe is to apply plastics on the basis of large-caliber spiral welded tube and ratio-frequency welded tube to form, maximum nozzle diameter
Up to 1200mm, according to different application of polyvinyl (PVC), polyethylene (PE), epoxy resin (EPOZY) etc. can be needed various not
With the plastic coating of performance, adhesive force is good, and corrosion resistance is strong, is resistant to strong acid, highly basic and other chemical attacks, nontoxic, not corrosion,
Wear-resisting, impact resistance, osmotic-pressure-tolerant are strong, and pipe surface is smooth, do not adhere to any substance, can reduce resistance during conveying, improve stream
Amount and transfer efficiency reduce discharge pressure loss.It is solvent-free in coating, substance can not be oozed out, because without polluting what is conveyed
Medium, so as to ensure the clarity of fluid and wholesomeness, -40 DEG C to+80 DEG C scopes can cold cycling be used alternatingly, not always
Change, be not cracked, thus can be used under the harsh environments such as cold zone, use scope is wide.
For at present, for the connection mode of large-diameter steel pipe, connected mostly using welding, flanged joint with socket joint,
Large-diameter steel pipe is connected with welding manner, the problems such as leak easily occurs, and it is inconvenient maintenance, of high cost；With the mode of flanged joint
Large-diameter steel pipe is connected, it is necessary to set flange in the junction of steel pipe, flange tedious process and inconvenience are set；It is contemplated that using
The mode of socket joint connection connects large-diameter steel pipe, and the key of socket joint connection is the bell and spigot for being to make socket joint connection, in bellmouth
Place also needs to set groove, can be sealed with sealing ring, to ensure the leakproofness of its connection.
The applicant has applied for a related patent of invention before,《A kind of anticorrosive steel rib enhancing spiral steel pipe and its system
Make method》, publication number：CN105221850A, wherein, it is referred to the manufacture craft of the steel pipe in the document, the implementation of the technique,
Need a kind of enlarging apparatus either referred to as the existing mold of flaring die or module both for small-bore steel pipe into
What row made, urgent need will develop a set of flaring module suitable for especially 1.2 meters or more large-diameter steel pipes of heavy caliber.
The content of the invention
In order to solve the deficiencies in the prior art, the present invention provides a kind of large-diameter steel pipe shaping mould, and that has a talk about herein is big
Bore refers to diameter at least at 1 meter and 1 meter or more, and steel pipe refers to the pipeline of clean steel, primary to solve not including composite metal plastic pipe
Certainly the technical issues of is that connecting two large-diameter steel pipes using welding manner seepy question easily occurs, and repairs inconvenient, expense
Height provides a kind of module in steel tube end part straight forming, and secondary technical problem is the bellmouth manufacture difficulty of large-diameter steel pipe
Greatly, cost of manufacture and manufacture difficulty are reduced.
The technical solution adopted by the present invention to solve the technical problems is：
The large-diameter steel pipe of the present invention dilates mold, which is characterized in that including
Transmission shaft, long axis, end are connected with the first power source,
Sleeve, long circular cylinder are nested on transmission shaft and are arranged concentrically, and end is connected with the second power source,
Flexible cartridge module, the flexible cartridge module include bellmouth shaping arc formwork, plain bearing housing and stud group
Part, at least three bellmouths are molded arc formwork and are circumferentially angularly evenly arranged along transmission shaft, and the bellmouth is molded arc
Template is movably connected in by positive and negative silk stud bolt assemblies on the plain bearing housing, is set in the middle position of plain bearing housing
Through hole, the through hole installation slide engaging and disengaging component and ring flange are equipped with, wherein the ring flange is fixedly connected with sleeve, it is described
Plain bearing housing is flexibly connected by slide engaging and disengaging component with what the transmission shaft was only slided in the axial direction.
The circular arc protrusion of equal length is provided with along circumferential direction in the outer surface of bellmouth shaping arc formwork.
Universal ball bearing is provided at the two edges of bellmouth shaping arc formwork inner surface.
The slide engaging and disengaging component includes internal gear and external gear, and the external gear is fixedly mounted on the logical of plain bearing housing
At hole, the internal gear and external gear are tooth occlusion cooperation, and are coordinated between the internal gear and the transmission shaft for key.
The positive and negative silk stud bolt assemblies include stud, trapezoid block and cylinder, wherein, the stud by
For three, left and right two studs are symmetrical on intermediate stud, and left and right two stud one end pass through silk
Set is articulated and connected with bellmouth shaping arc formwork inner surface, and the other end is articulated and connected by silk braid and trapezoid block, trapezoidal
Tool is there are one threaded hole in block, and installation is there are one screwed cylinder in the threaded hole, silk structure inside and outside the cylinder
Part and one end and plain bearing housing articulated connection, the other end carry out thread fitting, intermediate two-way spiral shell with intermediate two-way bolt
Bolt is articulated and connected with bellmouth shaping arc formwork inner surface.
The large-diameter steel pipe is not less than 1 meter of steel pipe for diameter.
The beneficial effects of the invention are as follows：
The present invention is a kind of large-diameter steel pipe shaping mould, is to be held by using Frequency Induction Heating to make large-diameter steel pipe
The mold of mouth can avoid the seepy question easily occurred using welding manner connection by the way of socket joint connection and repair not
Just the problem of, of high cost, can also avoid the problem that using flanged joint tedious process.The large-diameter steel pipe formation die of the present invention
Tool has the advantages of easy to use, making precision is high and efficient.
Description of the drawings
Fig. 1 is the dimensional structure diagram of shaping module.
Fig. 2 is the front view of shaping module.
Fig. 3 is the sectional view of shaping module.
Fig. 4 is the partial enlarged view of Fig. 3.
Fig. 5 is the first barrel assemblies structure diagram of the present invention.
Fig. 6 is the second barrel assemblies structure diagram of the present invention.
Fig. 7 is retracting cylinder component structure diagram.
Fig. 8 is the structure diagram of the plain bearing housing in flexible cartridge module.
Fig. 9 is flexible cartridge module partial perspective view.
Figure 10 is the stereogram that large-caliber spiral steel pipe dilates mold.
Figure 11 is partial sectional view in Figure 10.
In figure：The first barrel assemblies of 100-, the first cylindrical shells of 110-, 111- circular ring structures, 112- floors, 120- first
Link block, 121- circular holes, 122 bearings, the first stud bolt assemblies of 130-, the first studs of 131-, 132- fixed blocks,
The second barrel assemblies of 200-, the second cylindrical shells of 210-, the second link blocks of 220-, 230- the second stud groups
Part,
300- stretches cartridge module, 310- bellmouths shaping arc formwork, 311- circular arcs protrusion, the universal ball bearings of 312-, 320-
Plain bearing housing, 321- internal gears, 322- external gears, 323- arc-shaped through-holes, 324 rebounds, the 3rd stud bolt assemblies of 330-,
The 3rd studs of 331-, 332- trapezoid blocks, 333- fixed blocks, 334 cylinders,
410- twin-feed spiral components, 420- transmission shafts, 430- sleeves.
Specific embodiment
Referring to figs. 1 to Fig. 8, the present invention is a kind of large-diameter steel pipe formation die group, is coordinated by using Frequency Induction Heating
Expand the action of circle to make the mold of the bellmouth of large-diameter steel pipe, wherein using Frequency Induction Heating, steel tube end part is heated to
Forging temperature, the forging temperature described in the present invention is related with the material of forging technology and steel pipe, the temperature convenient for flaring deformation referred to
Degree, index are seen depending on deflection.Critical strain amount-triangular triaxial diagram of temperature-grain size has in forging handbook etc.
It is found in the data of pass, for ordinary steel, at 700~1000 DEG C, scope allows to fluctuate general temperature, then passes through flaring
Shaping module is acted, and forms regular flared part, and the bellmouth part after flaring can directly accommodate inserted terminal, by this
The use of module, the problem of seepy question that easily occurs and maintenance difficult can be connected to avoid welding manner, it is easy to use and
It is efficient.Meanwhile the concentricity higher of bellmouth and pipe section.
A kind of large-diameter steel pipe shaping mould of the present invention, including the first barrel assemblies 100, the second barrel assemblies 200, stretches
Contracting cartridge module 300, twin-feed spiral component 410, transmission shaft 420 and sleeve 430.
For convenience of description, space orientation is carried out to this module, with reference to figure 1, front, back, left, right, up, down three-dimensional space
Composition.
On transmission shaft 420 and twin-feed spiral component 410, from front to back, it is sequentially installed with the first barrel assemblies 100, stretches
300 and second barrel assemblies 200 of contracting cartridge module, and the first barrel assemblies 100 are mounted on the front end of transmission shaft 420, the first cylinder
Component 100 is to be rotatably assorted with transmission shaft 420, using bearing.Second barrel assemblies 200 and sleeve 430 are to be slidably matched,
Being slidably matched herein is carried out by axle sleeve.
On transmission shaft and the matching relationship of sleeve 430, the diameter of sleeve diameter and transmission shaft is suitable, is nested with relation,
That in the case of other external constraint power, sleeve 430 is not free state compared with transmission shaft, can be rotated, can also be axial
It is mobile.For example, when transmission shaft be mounted on speed reducer on when, transmission shaft have rotate degree of freedom, at this time sleeve have rotate and
Mobile multidirectional degree of freedom.Transmission shaft therein is rotated by the first power source drive, and sleeve 430 is by the second power source drive straight line
Mobile, movement between the two is non-interference.First, second power source that this place is said simply facilitates description, and not limiting must
It is so two independent power sources or a power source, a power source may be employed differential and carry out power decomposition,
Also it can reach the purpose of control.
Functionally, the rotation of transmission shaft 420 can only drive the rotation of flexible cartridge module 300.
The screw thread of twin-feed spiral component 410 is matched somebody with somebody respectively with the circular hole in the first barrel assemblies 100 and the second barrel assemblies 200
It closes, two barrel assemblies is connected by twin-feed spiral component.Between formation one is fixed between first and second barrel assemblies
Away from so-called determining deviation refers to, the gap and distance between two barrel assemblies are a fixed values, and the gap and space are to stretch
The installation of contracting cartridge module and activity space.
Flexible cartridge module is universal with being respectively arranged on the joint face of the first barrel assemblies 100 and the second barrel assemblies 200
Ball bearing 312 can reduce friction.Wherein, flexible cartridge module can be rotated compared with two barrel assemblies, and be matched somebody with somebody in axial rolling
Under the limitation of conjunction, only there is the ability rotated.
Common, the commercial form of universal ball bearing 312 is universal ball bearing, and universal ball bearing is fixed on retracting cylinder
On side, coordinated with the mating surface in the first barrel assemblies of side and the second barrel assemblies, be used to support flexible cartridge module
Expanding-contracting action.
Sleeve 430 is sleeved on from back to front on transmission shaft 420, through the center of the second barrel assemblies 200, is fixed on sliding axle
In bearing 320.One end of sleeve is fixedly connected with flexible cartridge module, other end connection driving mechanism, such as hydraulic cylinder, leading screw
Deng possessing the ability of back-and-forth motion.
First barrel assemblies 100 are identical with 200 structure of the second barrel assemblies, and are symmetrically set on flexible barrel assemblies 300
It puts, introduces its design feature by taking the first barrel assemblies 100 as an example below, the second barrel assemblies do not repeat.
First barrel assemblies 100 include the first cylindrical shell 110, the first link block 120 and the first stud bolt assemblies
130。
First cylindrical shell 110 is the cylindric shell structure of a uncovered, and in uncovered cylinder shell structure
Bottom surface, by welding clamping rings structure 111.In the inside of cylinder shell, the friendship of side surface circumference and bottom surface annulus
At boundary, floor 112 is equably provided with, the intensity of the first barrel assemblies can be improved.In the inside of cylindrical shell body side surface, uniformly
It is raised that there are four ground settings, is provided with circular hole in protrusion, can be connected by bolt with the first stud bolt assemblies 130, first pair
Hook bolt component is adjusted by forward direction and extended, by reversely adjusting shortening using right-handed screw and backpitch screw thread.Pass through
The application of one stud bolt assemblies can adjust the circularity of the first cylindrical shell, in the case of without considering adjusting, the first double end
Bolt assembly can also be substituted using reinforcing bar, and the both ends of reinforcing bar are welded on the first cylindrical shell 110 and the first link block 120,
Form uncontrollable connection.
First link block 120 is a circular block structure, and the centre of the first link block 120 is provided with through hole, is led to
Bearing 122 in hole is installed, can be coordinated by bearing 122 and transmission shaft 420, i.e. be that can turn between transmission shaft and the first link block
Dynamic cooperation.It in the outside of central through hole, equably sets there are four circular hole 121, for the one end fits with stud, leads to
Cross the connection that the circular hole realizes stud the first and second barrel assemblies.On the circumference side of the first link block 120,
It is raised there are four setting evenly, circular hole is provided in protrusion, can be connected by bolt with the first stud bolt assemblies 130.
First stud bolt assemblies 130 are made of the fixed block 132 of the first stud 131 and both ends, the fixation at both ends
132 structure of block is identical, thread rotary orientation on the contrary, and one end for being connected in fixed block with the first stud 131 be provided with threaded hole,
It can coordinate with stud；The other end of fixed block 132 is provided with through hole, can by bolt respectively with the first cylindrical shell and
Protrusion connection on one link block.The screw thread at the first stud both ends is plus thread and left-hand thread, passes through the original of positive and negative screw thread
Reason, the first stud bolt assemblies 130 can be used to adjust the circularity of the first cylindrical shell, avoid elliptical generation, it is convenient with it is to be added
Work steel pipe coordinates.
Second barrel assemblies 200 include the second cylindrical shell 210, the second link block 220 and the second stud bolt assemblies
230, Each part is substantially identical with the structure of each several part in the first barrel assemblies, and Principles of Regulation are also identical, wherein, due to
Two link blocks 220 are directly to coordinate with sleeve 430, so what is generated is to be slidably matched, are pacified in the through hole of the second link block
Dress is axle sleeve 221.
Large-diameter steel pipe dilates mold, is related to extension sleeve component, transmission shaft 420 and sleeve 430.It is controlled and expanded by sleeve
The expansion of mold is opened, passes through the spinning movement that transmission shaft controls mold.With reference to figure 9 to Figure 11.
Flexible cartridge module 300 includes bellmouth shaping arc formwork 310,320 and the 3rd stud bolt assemblies of plain bearing housing
330。
Arc formwork 310 is equal angular is divided into four parts for bellmouth shaping, and four part-structures are identical, are arranged circumferentially.
By the 3rd stud bolt assemblies 330 circularity of arc formwork 310 and the size of radius can be molded to adjust bellmouth.
The outer surface of arc formwork is molded in bellmouth, the circular arc protrusion 311 of equal length is provided with along circumferential direction, belongs to one of mold
Point, for making the groove of large-diameter steel pipe socket, sealing ring can be installed to be sealed at groove.Arc is molded in bellmouth
The centre of the inner surface of template is all equably set in each section there are three protrusion, is provided with circular hole in protrusion, can be passed through ladder
Bellmouth shaping arc formwork 310 is connected by shape block 332 with plain bearing housing 320, is formed supported at three point, is provided enough supports
Power is also equipped with bearing in junction, when needing to adjust the radius size of bellmouth shaping arc formwork 310, can make the 3rd pair
Hook bolt component 330 is rotated around junction.
At the two edges of bellmouth shaping 310 inner surface of arc formwork, multi-directional ball axis is provided with outward respectively vertically
It holding, universal ball bearing 312 coordinates respectively with the circular ring structure of 210 bottom surface of the first cylindrical shell 110 and the second cylindrical shell, i.e., and ten thousand
It can roll on the circular ring structure of contact to ball bearing 312, occur in flexible barrel assemblies and first, second cylindrical shell component
During relative rotation, friction can be reduced.
Plain bearing housing 320 is a circular block structure, is a special-shaped special purpose parts, generally cylindrical, in cunning
The middle position of moving axis bearing 320 is provided with through hole, for installing linear motion bearing, slide engaging and disengaging component and ring flange,
Middle ring flange is coordinated by bolt and plain bearing housing, and ring flange is welded and fixed with sleeve 430 is connected simultaneously, is slided for driving
The linear movement of bearing block.
In the front side of central through hole, slide engaging and disengaging component is installed, which includes internal gear 321 and external gear
322, external gear 322 can be fixedly mounted on plain bearing housing 320 by bolt, with reference to figure 7, coordinated with internal gear 321
It is external gear 322, it is ensured that external gear 322 and 321 synchronous rotary of internal gear are provided centrally with through hole in internal gear 321,
Keyway is provided with above through hole, through hole can be coordinated by key and transmission shaft, to ensure transmission shaft rotation synchronous with external gear 322
Turning, i.e. the action of transmission shaft can drive the rotation of plain bearing housing 320, meanwhile, plain bearing housing is also subject to sleeve 430
It is axially driving, and two power sources are formed at plain bearing housing and made a concerted effort, and can control the axial movement of plain bearing housing simultaneously
With circumferentially rotate.
On plain bearing housing 320, in the first link block 120 in the first barrel assemblies with twin-feed spiral component
It on the corresponding positions of circular hole of 410 cooperations, sets there are four arc-shaped through-hole 323, pacifies in arc-shaped through-hole 323 on the face of rear side
Equipped with linear running bearing, linear running bearing holds twin-feed spiral component and passes through, and can coordinate with twin-feed spiral component, and can make double
Arcuately through hole 323 slides head screw assembly, can reduce frictional force, and be conducive to safeguard.In the circumference of plain bearing housing 320
It is equably raised there are four setting on side, circular hole is provided in protrusion, bolt and the 3rd stud bolt assemblies 330 can be passed through
Connection, and stud bolt assemblies can be rotated around junction, four groups of studs are evenly arranged, the rotation of four arc-shaped through-holes 323
Angle is less than 90 degree, more than 45 degree, such as 80 degree, by the cooperation with rotation, axial movement, continuous extension mouth is formed, after
Face is described in detail again.
3rd stud bolt assemblies 330 are corresponding there are four arc formworks are molded with four bellmouths respectively, each group the 3rd pair
One bellmouth shaping arc formwork of hook bolt modular support, forms support, and with regulatory function.
Unlike the first stud bolt assemblies, the 3rd stud bolt assemblies 330 are by three the 3rd small double end spiral shells
Bolt 331 forms, three three groups small of 331 left, center, rights of the 3rd stud, wherein, two studs in left and right are on intermediate pair
Hook bolt.The two stud one end in left and right are fixed in the protrusion of bellmouth shaping arc formwork 310, and another one end passes through hinged
Mode be mounted on trapezoid block 332 on.
Trapezoid block is a trapezoidal block structure.
Trapezoid block 332 is trapezoidal block structure, and special-shaped special purpose parts, there are one threaded hole, spiral shells for tool in trapezoid block 332
Installation is there are one screwed cylinder in pit, screw connection by screw thread between the two, 334 one end of cylinder with
Plain bearing housing 320 is articulated and connected, and the other end carries out screwing cooperation with the 3rd intermediate two-way bolt, by cylinder 334, holds
Mouth shaping arc formwork possesses the regulatory function of a certain range of automatic adjustment and three dimensions.Simultaneously in both sides multi-directional ball axis
It holds under 312 limitation, it can be along radial expansion.
On two inclined-planes of trapezoid block 332, it is respectively arranged with what can be connected with the stud fixed block of the left and right sides
Protrusion projects through bolt and the male cooperation on plain bearing housing 320 below trapezoid block, makes trapezoid block 332 can be around cylinder
334 junction of body rotates.
The protrusion on 332 inclined-plane of trapezoid block passes through the fixed block 333 on two studs of hinged mode and left and right respectively
Connection, the 3rd intermediate stud are directly rotatablely connected with the screwed cylinder in trapezoid block 332.It can lead to
Cross rotate the 3rd stud bolt assemblies 330 in the 3rd stud 331 come adjust bellmouth shaping arc formwork 310 circularity and
The size of radius, and pass through three supports and enough supports are carried out to arc formwork, and can sliding axle be promoted by sleeve
Bearing 320 makes the 3rd bolt assembly 330 rotate around junction, thus come change bellmouth shaping arc formwork 310 size,
Facilitate the processing of large-diameter steel tube faucet.
That is, after plain bearing housing 320 is moved axially compared with bellmouth arc formwork, the 3rd bolt assembly
It can deflect along axis direction, shape forms an angle.
That is, intermediate flexible cartridge module 300 exists compared with the first barrel assemblies 100 and the second barrel assemblies 200
Position in axial direction is constant, and plain bearing housing 320 is compared with the first barrel assemblies 100 and the second barrel assemblies 200 in axis
Upward position can change, and driving force comes from sleeve, after the position of plain bearing housing 320 changes, the 3rd pair
Hook bolt component certainty run-off the straight, calculates according to triangle, the fenestra that four bellmouth shaping arc formworks 310 enclose
Necessarily change.
Twin-feed spiral component 410 compared with first with the stud in the 3rd stud bolt assemblies more greatly, totally four, from backward
Before pass through the second barrel assemblies 200 and flexible cartridge module 300, threaded one end in front end and in the first barrel assemblies 100 first
Circular hole 121 on link block 120 coordinates, and centre passes through the arc-shaped through-hole 323 on plain bearing housing 320 in flexible cartridge module 300,
Linear motion bearing is installed, twin-feed spiral component 410 can slide in linear motion bearing, double end spiral shell in arc-shaped through-hole 323
It revolves the threaded one end in 410 rear end of component with the circular hole on the second link block 220 in the second barrel assemblies 200 to coordinate, so
Matching relationship can ensure that while intermediate warp cartridge module rotates, the first barrel assemblies 100 and the second barrel assemblies 200 are not
It can rotate, so that in arc-shaped through-hole 323 of the twin-feed spiral component 410 in flexible cartridge module on plain bearing housing 320
It slides.
A rebound 324 is welded close to the position of the first barrel assemblies on bellmouth shaping arc formwork 310, was used for
It crosses, and inclined-plane formed here, pipeline diameter cataclysm here is avoided, forms rounding off.
420 one end of transmission shaft connects the first power source, such as power step-down gear, is locally nested with after sleeve the other end from backward
Before pass through the second barrel assemblies 200, flexible 300 and first barrel assemblies 100 of cartridge module, pass through axis in the front end of transmission shaft 420
It holds and coordinates with the first barrel assemblies 100, it is outer with plain bearing housing 320 by way of key connection at flexible cartridge module 300
Gear 322 coordinates, i.e. the rotation of transmission shaft 420 can drive the rotation of flexible cartridge module 300, that is to say, that and transmission shaft 420 rotates,
External gear also rotates therewith.
At the second barrel assemblies 200, sleeve 430 is coordinated by bearing and the second barrel assemblies 200.In the first power source
When imparting power to transmission shaft 420, transmission shaft 420 rotates, and transmission shaft 420 is rotated then through external gear, plain bearing housing 320
Flexible cartridge module 300 is driven to rotate.But the first barrel assemblies 100, the second barrel assemblies 200 with stud be it is fixed, it is double
Head screw assembly 410 can only slide in the arc-shaped through-hole 323 in flexible cartridge module 300 on plain bearing housing 320, so transmission
Axis 420 can only move back and forth in certain angle.
Sleeve 430 is mounted on transmission shaft 420 from back to front, through the center (axle sleeve cooperation) of the second barrel assemblies 200,
430 front end of sleeve is fixedly mounted on by way of ring flange on plain bearing housing 320, one is formed, in the front end of sleeve 430
It sets there are one convex block, sleeve can be fixed on plain bearing housing 320 by screw, i.e., the linear motion of sleeve 430 can band
The linear motion of dynamic plain bearing housing 320, sleeve 430 move back and forth in the axial direction, then make the diameter hair of flexible cartridge module 300
Changing so that template is contacting and separating with pipe section to be flared, and after separation, bellmouth shaping arc formwork resets.
The rear end of sleeve is connected with the second power source, and sleeve 430 can control to carry out linear reciprocating motion along transmission shaft, and sleeve acts on
In,
When needing for mold to be put into the port of large-diameter steel pipe, the second power source control sleeve 430 moves forward, and makes cunning
320 forward slip of dynamic bearing pedestal, i.e. the 3rd stud bolt assemblies are rotated around junction, the inclination of certain angle occur, at this time
Bellmouth shaping 310 diameter of arc formwork of flexible cartridge module becomes smaller, identical with first, second cylindrical shell diameter, can smoothly into
Enter large-diameter steel pipe port；
When needing to make the bellmouth of large-diameter steel pipe, the second power source control sleeve 430 is moved backward, makes sliding axle
It holds pedestal 320 to slide backward, i.e. the 3rd stud bolt assemblies are rotated around junction, make the bellmouth shaping arc mould of flexible cartridge module
310 diameter of plate becomes larger, and the diameter at large-diameter steel pipe port can be made to become larger, you can make bellmouth.
The use process of the present invention：
Mold is placed at the port of large-diameter steel pipe, is moved forward by the second power source control sleeve 430, makes slip
320 forward slip of bearing base, i.e. the 3rd stud bolt assemblies are rotated around junction, and the inclination of certain angle, inclination angle occurs
Degree reduces, and the bellmouth shaping arc formwork 310 for the cartridge module that stretches at this time simulates diameter and becomes smaller, straight with first, second cylindrical shell
Footpath is identical, and after diameter reduces, mold integrally can smoothly enter large-diameter steel pipe port so that the end of steel pipe and the second cylinder group
The front edge alignment of part 200；
With the mode of Frequency Induction Heating by the large-diameter steel pipe heating one end of bellmouth to be produced, make to facilitate and change its radius
Size.
Flexible cartridge module 300 is whole to be inserted into large-diameter steel pipe, and the second power source of control moves backward sleeve 430,
Then slide backward sliding bearing pedestal 320, i.e. the 3rd stud bolt assemblies are rotated around junction, make holding for flexible cartridge module
Mouth shaping 310 diameter of arc formwork becomes larger, and under the effect of external force, bellmouth shaping arc formwork directly acts on the interior of steel pipe
Wall can make the diameter at large-diameter steel pipe port become larger, is flared.
There is gap between four parts of the bellmouth shaping arc formwork 310 after becoming larger due to diameter, so the bellmouth made
Can be irregular round mouth, such as in the gap of two bellmouth shaping arc formworks, it is impossible to it is softened, starts the first power
Source makes transmission shaft 420 be rotated clockwise in certain angle, such as 80 degree, while rotation, pipeline is driven to rotate 80 degree, i.e.
The arc-shaped through-hole 323 on the plain bearing housing 320 in flexible cartridge module is made to do turning for certain angle along twin-feed spiral component 410
It is dynamic.
When going to the extreme position of arc-shaped through-hole 323, then the second power source is controlled, move forward sleeve 430, stretched
Bellmouth shaping 310 diameter of arc formwork of cartridge module becomes smaller, and large-diameter steel pipe is left in the outer surface of bellmouth shaping arc formwork 310
Inner wall, then control the first power source again, make the rotation of transmission shaft negative direction angle, such as rotate counterclockwise 80 degree, that is, turn
Go back to original position.
The second power source is controlled, moves backward sleeve 430, the bellmouth shaping arc formwork 310 of flexible cartridge module is simulated
Diameter becomes larger, then the inner wall of bellmouth shaping arc formwork fitting large-diameter steel pipe controls the first power source, transmission shaft 420 again
It rotates, bellmouth shaping arc formwork 310 is made to strut the inner wall of large-diameter steel pipe, completes the action of a program.
By controlling the first power source and the second power source, transmission shaft 420 and sleeve 430 is made to carry out multiple reciprocal fortune
Dynamic, the action of each secondary program, rotational angle is at 80 degree or so, after the movement of ten circle left and right is completed, you can complete heavy caliber
The making of steel pipe bellmouth in above-mentioned flaring process, moves back and forth the making precision and circularity that can ensure bellmouth.
The above-described embodiments are merely illustrative of preferred embodiments of the present invention, not to the model of the present invention
It encloses and is defined, on the premise of design spirit of the present invention is not departed from, various changes of the relevant technical staff in the field to the present invention
Shape and improvement should all expand as determined by claims of the present invention in protection domain.
Claims (6)
1. large-diameter steel pipe dilates mold, which is characterized in that including
Transmission shaft (420), long axis, end are connected with the first power source,
Sleeve (430), long circular cylinder are nested on transmission shaft and are arranged concentrically, and end is connected with the second power source,
Flexible cartridge module (300), the flexible cartridge module (300) include bellmouth shaping arc formwork (310), plain bearing housing
(320) and stud bolt assemblies (330), at least three bellmouths are molded arc formworks (310) along transmission shaft circumferential direction isogonism
Degree is evenly arranged, and the bellmouth shaping arc formwork (310) is movably connected in the sliding axle by stud bolt assemblies (330)
In bearing (320), the middle position of plain bearing housing (320) is provided with through hole, the through hole is equipped with linear motion axis
It holds, slide engaging and disengaging component and ring flange, wherein the ring flange is fixedly connected with sleeve (430), the plain bearing housing (320)
It is flexibly connected by slide engaging and disengaging component with what the transmission shaft was only slided in the axial direction.
2. large-diameter steel pipe according to claim 1 dilates mold, which is characterized in that in the outer of bellmouth shaping arc formwork
The circular arc that surface is provided with equal length along circumferential direction is raised (311).
3. large-diameter steel pipe according to claim 1 dilates mold, which is characterized in that is molded arc formwork in bellmouth
(310) it is provided with universal ball bearing at the two edges of inner surface.
4. large-diameter steel pipe according to claim 1 dilates mold, which is characterized in that the slide engaging and disengaging component includes interior
Gear (321) and external gear (322), the external gear (322) is fixedly mounted on the through hole of plain bearing housing (320), described
Internal gear (321) and external gear (322) coordinate for occlusion, and coordinate between the internal gear and the transmission shaft (420) for key.
5. large-diameter steel pipe according to claim 1 dilates mold, which is characterized in that the stud bolt assemblies (330)
Including stud (331), trapezoid block and cylinder, wherein, the stud (331) is three, left and right two double end spiral shells
Bolt is symmetrical on intermediate stud, and left and right two stud one end are molded arc mould by silk braid and the bellmouth
Plate (310) inner surface is articulated and connected, and the other end is articulated and connected by silk braid and trapezoid block (332), is had in trapezoid block (332)
One threaded hole, there are one screwed cylinder, the cylinder is inside and outside silk structure and one for installation in the threaded hole
End is articulated and connected with plain bearing housing (320), and the other end carries out thread fitting, intermediate two-way bolt with intermediate two-way bolt
With bellmouth shaping arc formwork (310) inner surface articulated connection.
6. large-diameter steel pipe according to claim 1 dilates mold, which is characterized in that the large-diameter steel pipe is not small for diameter
In 1 meter of spiral steel pipe.
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| CN107262997B (en) * | 2017-06-21 | 2019-07-23 | 扬州新东方金属材料制造有限公司 | A kind of rectangular tube group weldering stretching apparatus |
| CN109235114A (en) * | 2018-11-18 | 2019-01-18 | 张雅慧 | A kind of environment protection type paper equipment that can recycle sewage |
| CN109624285A (en) * | 2018-12-29 | 2019-04-16 | 天津市九赢百信科技有限公司 | A kind of automatic rubber tube stay port system |
| CN109624281A (en) * | 2019-01-22 | 2019-04-16 | 河北可耐特复合材料有限公司 | Cylinder manufacturing equipment and its operating method |
| CN109926485B (en) * | 2019-04-19 | 2020-10-16 | 台州市东部数控设备有限公司 | Numerical control spinning machine tool |
| CN113714452B (en) * | 2021-07-27 | 2023-05-09 | 临沂市华创新型建材有限公司 | Intermittent support type composite pipe end positioning and rotary forging equipment |
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| JPH08257930A (en) * | 1995-03-24 | 1996-10-08 | Katsuteru Araki | Pipe clamping mechanism and pipe end machining device using same |
| CN201279555Y (en) * | 2008-10-28 | 2009-07-29 | 山东法因数控机械股份有限公司 | Stretching rotating mechanism of cylinder workpiece |
| CN201565525U (en) * | 2009-11-13 | 2010-09-01 | 常州良旭车辆配件有限公司 | Mouth flaring mould core |
| DE202012100361U1 (en) * | 2012-02-03 | 2013-05-06 | Rehau Ag + Co. | Expansion head for expansion tools and this comprehensive expansion tool |
| CN104669577B (en) * | 2015-02-13 | 2017-05-31 | 山东省调水工程技术研究中心有限公司 | A kind of special-shaped wall Guan Cheng, socket mould and its bell and spigot manufacturing equipment |
| CN106216538B (en) * | 2016-08-04 | 2017-12-15 | 中南大学 | A kind of major diameter ring mechanical expansion equipment |
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