CN109201807A - A kind of round tube bending forming gear chain type plug - Google Patents
A kind of round tube bending forming gear chain type plug Download PDFInfo
- Publication number
- CN109201807A CN109201807A CN201811075821.6A CN201811075821A CN109201807A CN 109201807 A CN109201807 A CN 109201807A CN 201811075821 A CN201811075821 A CN 201811075821A CN 109201807 A CN109201807 A CN 109201807A
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- axis
- hole
- gear plate
- installation
- connection sheet
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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
- B21D9/00—Bending tubes using mandrels or the like
- B21D9/01—Bending tubes using mandrels or the like the mandrel being flexible and engaging the entire tube length
- B21D9/03—Bending tubes using mandrels or the like the mandrel being flexible and engaging the entire tube length and built-up from loose elements, e.g. series of balls
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Abstract
The present invention discloses a kind of round tube bending forming gear chain type plug, is used to support the core ball of round tube bend loss including 1 or more, is used to support the mandrel of round tube straightway and for connecting the gear chain type connector between core ball and core ball and between connection core ball and mandrel；Wherein the gear chain type connector includes unilateral gear plate, bilateral gear plate, connection sheet, long stop collar, short stop collar and axis；The core ball is the shell of spherical structure, and the enclosure interior offers the first mount type chamber, and the mandrel is the mandrel of cylindrical structure.The present invention has certain versatility, can be applicable in big radius-thickness ratio, thin-wall tube of small bend radius bending forming, and support accuracy is high.
Description
Technical field
A kind of round tube bending forming gear chain type plug of the present invention.
Background technique
Metallic thin wall hollow pipe fitting due to answering with advantages such as intensity height, light weight, easily molded, good appearances extensively
For fields such as Aeronautics and Astronautics, vehicle, ship and petrochemical industries.However, big radius-thickness ratio (D/t>50), small-bend radius (R/D<
2) thin-wall tube, since bend pipe inner tube wall is pressurized, is very easy to Instability wrinkling in numerical control bending forming；Outside tension is thinned,
It is easy to drawing crack；The resultant force of the two makes bend pipe section fasciation distort, or even collapses, therefore forming is difficult.
In order to reduce the bending forming defect of big radius-thickness ratio, thin-wall tube of small bend radius, need to install inside thin-wall tube
Plug provides internal support.Most common mandrel-type has ball-and-socket type plug and chain type plug.The plug pearl of ball-and-socket type plug
Ball and nest between there are larger gaps, there are biggish gap between the axis and chain piece of chain type plug, Shi Xin club because from
It naturally droops again, some specific position cannot be fixed on.And there is also gaps between plug and thin-wall tube, make plug to thin
The support accuracy of wall pipe is not high, to influence big radius-thickness ratio, the bending precision of thin-wall tube of small bend radius.
Summary of the invention
Object of the present invention is to naturally droop for the core club for solving existing plug because of self weight, some spy cannot be fixed on
Fixed position and existing plug is not high to the support accuracy of thin-wall tube influences big radius-thickness ratio, thin-wall tube of small bend radius bending essence
The problem of spending, propose it is a kind of have certain versatility, big radius-thickness ratio can be applicable in, thin-wall tube of small bend radius bending forming is used,
Support accuracy high round tube bending forming gear chain type plug.
In order to achieve the above object, the technical scheme is that
A kind of round tube bending forming gear chain type plug is used to support the core ball of round tube bend loss including 1 or more, uses
In the mandrel of support round tube straightway and for connecting the gear between core ball and core ball and between connection core ball and mandrel
Chain type connector；Wherein the gear chain type connector include unilateral gear plate, bilateral gear plate, connection sheet, long stop collar,
Short stop collar and axis；The core ball is the shell of spherical structure, and the enclosure interior offers the first mount type chamber, described
Mandrel is the mandrel of cylindrical structure；
2 pairs of the unilateral gear plate point, each pair of 2, the core ball number is the logarithm+1 of bilateral gear plate, and described is double
Side gear plate each pair of 2；2 pairs of unilateral gear plates are located at the both ends of bilateral gear plate, 2 pairs of unilateral gears
1 pair or more of bilateral gear plate is installed between plate.
One end of the unilateral gear plate is machined with half knuckle-tooth, the center of circle position of half knuckle-tooth on the unilateral gear plate
It sets and offers 1 first axle installation through-hole, also opened up on the unilateral gear plate with the center of circle sustained height position of half knuckle-tooth
There is 1 first axle installation through-hole；The both ends of the bilateral gear plate are machined with half knuckle-tooth respectively, on the bilateral gear plate
The center location of half knuckle-tooth also offer first axle installation through-hole；Half knuckle-tooth and bilateral gear on the unilateral gear plate
It engages and is connected between half knuckle-tooth of side on plate；It is connected between adjacent 2 bilateral gear plates also by semicircle tooth engagement；
There are two semicircle, the center location of two semicircles offers the installation of the second axis for the both ends processing of the connection sheet
Through-hole；The two sides of half knuckle-tooth on the unilateral gear plate and half knuckle-tooth on the bilateral gear plate are separately installed with company
Contact pin；
The long stop collar and short stop collar are hollow cylinder, and the inside of the long stop collar and short stop collar opens up
There is third axis installation through-hole；
Wherein unilateral gear plate described in 1, long stop collar, phase is coupled by shaft clearance between another 1 unilateral gear plate
Even and unilateral gear plate described in 1, short stop collar, be also coupled by shaft clearance between another 1 unilateral gear plate it is connected；
Bilateral gear plate described in 1, short stop collar, it is 1 another described in be coupled by shaft clearance between bilateral gear plate it is connected；
On axis between the adjacent unilateral gear plate and bilateral gear plate or between adjacent bilateral gear plate and bilateral gear plate
Installation is with a piece of connection sheet, i.e., the axis sequentially passes through the second axis installation through-hole in 1 connection sheet, 1 unilateral gear plate circle
Second axis installation through-hole on first axle installation through-hole in the heart, the 2nd connection sheet, the third axis installation through-hole on short stop collar,
Second axis installation through-hole, the first axle installation through-hole on the 2nd unilateral gear plate center of circle, the 4th connection sheet in 3rd connection sheet
Upper second axis installation through-hole；The axis sequentially passes through the second axis installation through-hole in 1 connection sheet, on 1 bilateral gear plate
Second axis installation through-hole, the third axis installation through-hole on short stop collar, the 3rd company on first axle installation through-hole, the 2nd connection sheet
Second axis installation through-hole, the first axle installation through-hole on the 2nd bilateral gear plate, the second axis peace in the 4th connection sheet in contact pin
Fill through-hole；The axis also sequentially passes through the non-circular first axle installation through-hole in the heart of 1 unilateral gear plate, on long stop collar
First axle installation through-hole on three axis installation through-holes, the 2nd unilateral gear plate center of circle.
The wall surface of the shell of the first mount type chamber side on the core ball offers the first mounting surface of connection sheet；Institute
The 4th axis installation through-hole is offered on the first mounting surface stated；First mount type is intracavitary to be equipped with the connection of gear chain type
Body, first mounting surface and connection sheet fit placement, and are equipped with axis in the 4th axis installation through-hole of the core ball,
And the 4th axis installation through-hole of the axis and core ball is interference fitted and installs；The first mount type chamber longitudinal midline position
Inclined surface is offered on shell.The mandrel offers the second mount type chamber, second mount type close to core ball one end
The wall surface of the shell of chamber side offers the second mounting surface of connection sheet；The installation of the 5th axis is offered on second mounting surface
Through-hole；Second mount type is intracavitary to be equipped with gear chain type connector, and second mounting surface fits with connection sheet
It places, and axis is installed, and the 5th axis installation through-hole of the axis and mandrel in the 5th axis installation through-hole of the mandrel
Interference fit installation；
The other end middle position of the mandrel offers tapped hole, and it is flat that the mandrel outer surface is equipped with installation
Platform offers installation through-hole on the mounting platform.
The unilateral gear plate of the long stop collar and its two sides is installed in the second mount type chamber or outermost of mandrel
First mount type of side core ball is intracavitary；The bilateral gear plate of the short stop collar and its two sides is installed in except outermost side core
First mount type of other core balls other than ball is intracavitary.
The beneficial effects of the present invention are:
1) it between core ball and core ball, between core ball and mandrel, is connected by the chain type that gear engages, to connect and constrain between each other
Relationship makes core ball can be positioned at any position, improves plug to the support accuracy of thin-wall tube, so that thin-wall tube can be improved
It is bent precision.
2) core ball is arranged gradient close to curved interior, makes to be bonded between core ball even closer, is advantageously implemented small bending half
The pipe fitting bending forming of diameter.
3) pass through the distance between 4 connection sheet connections and constraint, guarantee between two core balls or between mandrel and core ball
Meshing relation between two neighboring gear plate.
4) axis connection core ball and gear chain type connector, while also the engagement between two neighboring gear plate provides
Rotary shaft.
5) gear chain type connector and core ball are modularized design, can install required core ball number according to actual needs
With gear chain type connector length.
6) axis and core ball, mandrel interference fit and unilateral gear plate, bilateral gear plate, connection sheet, long stop collar, short limit
Position czermak space cooperation makes between core ball, passes through gear meshing modulation angle between core ball and mandrel, and precision is high.
7) mandrel of cylindrical body and spherical core ball are suitble to provide the round tube bending forming of various specifications and size internal
Support.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the enlarged structure schematic diagram of Fig. 1 middle gear chain type connector；
Fig. 3 is the enlarged structure schematic diagram of unilateral gear plate in Fig. 1；
Fig. 4 is the enlarged structure schematic diagram of bilateral gear plate in Fig. 1；
Fig. 5 is the enlarged structure schematic diagram of connection sheet in Fig. 1；
Fig. 6 is the enlarged diagram of Fig. 1 core ball；
Fig. 7 is the cross section enlarged diagram of mandrel in Fig. 1；
Fig. 8 is long stop collar structural schematic diagram in Fig. 1.
Specific embodiment
A kind of round tube bending forming gear chain type plug of the present embodiment, as shown in figures 1-8, including 1 or more is used
In support round tube bend loss core ball 1, be used to support round tube straightway mandrel 2 and for connect core ball 1 and core ball 1 it
Between and connection core ball 1 and mandrel 2 between gear chain type connector 3；Wherein the gear chain type connector 3 includes unilateral side
Gear plate 31, bilateral gear plate 32, connection sheet 33, long stop collar 34, short stop collar 35 and axis 36；The core ball 1 is spherical shape
The shell 14 of structure, the first mount type chamber 11 is offered inside the shell 14, and the mandrel 2 is the core of cylindrical structure
Axis；
The unilateral gear plate 31 divides 2 pairs, and each pair of 2, described 1 number of core ball is the logarithm+1 of bilateral gear plate 32, institute
The bilateral gear plate stated 32 each pair of 2；2 pairs of unilateral gear plates 31 are located at the both ends of bilateral gear plate 32, described
2 pairs of unilateral gear plates 31 between 1 pair or more of bilateral gear plate 32 is installed.
One end of the unilateral gear plate 31 is machined with half knuckle-tooth 311, half knuckle-tooth on the unilateral gear plate 31
311 center location offers 1 first axle installation through-hole 312, the center of circle on the unilateral gear plate 31 with half knuckle-tooth 311
Sustained height position is also provided with 1 first axle installation through-hole 312；The both ends of the bilateral gear plate 32 are machined with half respectively
The center location of knuckle-tooth 311, half knuckle-tooth 311 on the bilateral gear plate 32 also offers first axle installation through-hole 312；Institute
It engages and is connected between half knuckle-tooth 311 and half knuckle-tooth 311 of side on bilateral gear plate 32 on the unilateral gear plate 31 stated；It is described
Adjacent 2 bilateral gear plates 32 between also by half knuckle-tooth 311 engage be connected；
There are two semicircle 331, the center location of two semicircles 331 offers for the both ends processing of the connection sheet 33
Two axis installation through-holes 332；Half knuckle-tooth on half knuckle-tooth 311 and the bilateral gear plate 32 on the unilateral gear plate 31
311 two sides are separately installed with connection sheet 33；The long stop collar 34 and short stop collar 35 is hollow cylinder, described
The inside of long stop collar 34 and short stop collar 35 offers third axis installation through-hole 341；
Wherein unilateral gear plate 31 described in 1, long stop collar 34, matched between another 1 unilateral gear plate 31 by 36 gap of axis
Installation is closed to be connected and unilateral gear plate 31 described in 1, short stop collar 35, also pass through axis 36 between another 1 unilateral gear plate 31
Clearance fit installation is connected；Bilateral gear plate 32 described in 1, short stop collar 35, it is 1 another described between bilateral gear plate 32
It is connected by the installation of 36 clearance fit of axis；Between the adjacent unilateral gear plate 31 and bilateral gear plate 32 or adjacent bilateral
Installation is with a piece of connection sheet 33 on axis 36 between gear plate 32 and bilateral gear plate 32, i.e., the axis 36 sequentially passes through 1
First axle installation through-hole 312, the 2nd company in connection sheet 33 on second axis installation through-hole, 332,1 31 centers of circle of unilateral gear plate
Second axis installation through-hole 332 in contact pin 33, second in 341, the 3rd connection sheets 33 of third axis installation through-hole on short stop collar 33
Axis installation through-hole 332, the first axle installation through-hole 312 on the 2nd 31 center of circle of unilateral gear plate, second in the 4th connection sheet 33
Axis installation through-hole 332；The axis 36 sequentially passes through 332,1 bilateral gear plates of the second axis installation through-hole in 1 connection sheet 33
Second axis installation through-hole 332 on first axle installation through-hole 312, the 2nd connection sheet 33 on 32, the third axis on short stop collar 35
Second axis installation through-hole 332 on installation through-hole 341, the 3rd connection sheet 33, the first axle installation on the 2nd bilateral gear plate 32
Second axis installation through-hole 332 on through-hole 312, the 4th connection sheet 33；The axis 36 also sequentially passes through 1 unilateral gear plate 31
341, the 2nd unilateral gear plates 31 of third axis installation through-hole on non-circular first axle installation through-hole 312 in the heart, long stop collar 34
First axle installation through-hole 312 on the center of circle.
The wall surface of the shell 14 of 11 side of the first mount type chamber on the core ball 1 offers the first peace of connection sheet 33
Dress face 12；The 4th axis installation through-hole 13 is offered on first mounting surface 12；Installation in the first mount type chamber 11
There is a wheel chain formula connector 3, first mounting surface 12 and connection sheet 33 fit placement, and the 4th of the core ball 1 the
Axis 36 is installed, and the 4th axis installation through-hole 13 of the axis 36 and core ball 1 is interference fitted and installs in axis installation through-hole 13；Institute
Inclined surface 15 is offered on the shell 14 for the 11 longitudinal midline position of the first mount type chamber stated.The mandrel 2 is close to core ball 1 one
End offers the second mount type chamber 21, and the wall surface of the shell of 21 side of the second mount type chamber offers the of connection sheet 33
Two mounting surfaces 22；The 5th axis installation through-hole 23 is offered on second mounting surface 22；In the second mount type chamber 21
Gear chain type connector 3 is installed, second mounting surface 22 and connection sheet 33 fit placement, and the mandrel 2
Axis 36 is installed, and the 5th axis installation through-hole 23 of the axis 36 and mandrel 2 is interference fitted and pacifies in the 5th axis installation through-hole 23
Dress.
The other end middle position of the mandrel 2 offers tapped hole 24, and 2 outer surface of mandrel is equipped with
Mounting platform 25 offers installation through-hole 26 on the mounting platform 25.
The unilateral gear plate 31 of the long stop collar 34 and its two sides is installed in the second mount type chamber 21 of mandrel 2
Or in the first mount type chamber 11 of outermost side core ball 1；The bilateral gear plate 32 of the short stop collar 35 and its two sides is pacified
In the first mount type chamber 11 of other core balls 1 in addition to outermost side core ball 1.
When installation, firstly, installation mandrel 2 and gear chain type connector 3.By first axis 36 from the 5th of the outside of mandrel 2 the
A distance is knocked in the second mount type chamber 21 at axis installation through-hole 23, then by the first axle of first unilateral gear plate 31
Installation through-hole 312 and first long stop collar 34 are packed on first axis 36, and ensure the semicircle of first unilateral gear plate 31
Tooth 311 is in the second mount type chamber 21 of mandrel 2；Then again by first axis 36 toward the second mount type chamber 21 knock in one section away from
From equally second unilateral gear plate 31 is packed on first axis 36；Finally first axis 36 is all knocked in mandrel 2.
By second axis 36 from the 5th axis installation through-hole 23 in the outside of mandrel 2 toward the second mount type chamber 21 knock in one section away from
From one of them second axis installation through-hole 332 of first connection sheet 33 being packed on second axis 36, then by the of previous step
The first axle installation through-hole 312 at the center of half knuckle-tooth 311 of one unilateral gear plate 31 is inserted on second axis 36, then successively will
On one of them 332, first short stop collar 35 of the second axis installation through-hole, third piece connection sheet 33 in second connection sheet 33
One of them second axis installation through-hole 332 be packed into second axis 36 on；Second axis 36 is struck toward the second mount type chamber 21 again
Enter a distance, by second unilateral side of one of them second axis installation through-hole 332 in the 4th connection sheet 33 and previous step
Gear plate 31 is packed on second axis 36；Finally second axis 36 is all knocked in mandrel 2.
Then, intermediate the 1st core ball 1 and gear chain type connector 3 are installed.First by third root axis 36 from the intermediate the 1st
A distance is knocked in toward the first mount type chamber 11 at the 4th axis installation through-hole 13 in a 1 outside of core ball；By first of previous step
Another the second axis installation through-hole 332 in connection sheet 33 is inserted on third root axis 36, is reloaded into first bilateral gear plate 32
On one of them half knuckle-tooth 311 where first axle installation through-hole 312, and ensure first bilateral gear plate 32 another
Half knuckle-tooth 311 is inside the first mount type chamber 11；Second connection sheet 33 of previous step is inserted on third root axis 36 again, is refilled
Enter second short stop collar 35, then the third piece connection sheet 33 of previous step is inserted on third root axis 36, then is similarly packed into
The first axle installation through-hole 312 where one of them half knuckle-tooth 311 on two bilateral gear plates 32, then by the 4th of previous step the
Piece connection sheet 33 is inserted on third root axis 36；Finally third root axis 36 is all knocked in the 1st core ball 1.So that first list
Half knuckle-tooth 311 on side gear plate 31 is engaged with one of them half knuckle-tooth 311 on first bilateral gear plate 32 to be connected；Second
Half knuckle-tooth 311 on a unilateral gear plate 31 is engaged with one of them half knuckle-tooth 311 on second bilateral gear plate 32 to be connected.
Similarly according to the installation method of third root axis 36, by the 4th axis 36 be successively inserted in the 5th connection sheet 33 one of them
First axle installation through-hole 312 where another half knuckle-tooth 311 of the two bilateral gear plates 32 of axis installation through-hole 332, first, the
On one of them second axis installation through-hole 332, third short stop collar 35, the 7th connection sheet 33 in six connection sheets 33
First axle installation where another half knuckle-tooth 311 of one of them 332, second bilateral gear plate 32 of the second axis installation through-hole
One of them second axis installation through-hole 332 on through-hole 312, the 8th connection sheet 33, and the 4th axis 36 is also all knocked in
In 1st core ball 1.
The present embodiment uses 4 core balls, then by the installation of gear chain type connector 3 by the 1st core ball 1 and the 2nd
Core ball 1 is connected；First by the 5th axis 36 from the 4th axis installation through-hole 13 in the outside of the 2nd core ball 1 toward the first mount type chamber
A distance is knocked in 11；Another the second axis installation through-hole 332 in 5th connection sheet 33 of previous step is inserted in the 5th
On root axis 36, it is reloaded into the first axle installation through-hole at one of them half knuckle-tooth, 311 place on third bilateral gear plate 32
312, and ensure another half knuckle-tooth 311 of third bilateral gear plate 32 inside the first mount type chamber 11；Again by previous step
The 6th connection sheet 33 be inserted on the 5th axis 36, be reloaded into the 4th short stop collar 35, then by the 7th connection sheet of previous step
33 are inserted on the 5th axis 36, then where one of them half knuckle-tooth 311 being similarly packed on the 4th bilateral gear plate 32
First axle installation through-hole 312, then the 8th connection sheet 33 of previous step is inserted on the 5th axis 36；It is finally that the 5th axis 36 is complete
Portion knocks in the 2nd core ball 1.So that another half knuckle-tooth 311 of first bilateral gear plate 32 and third bilateral gear plate
One of them half knuckle-tooth 311 engagement on 32 is connected；So that another half knuckle-tooth 311 and the 4th of second bilateral gear plate 32
One of them half knuckle-tooth 311 engagement on a bilateral gear plate 32 is connected；Similarly according to the installation method of the 5th axis 36, by
Six roots of sensation axis 36 is successively inserted in one of them second axis installation through-hole 332, third bilateral gear plate in the 9th connection sheet 33
First axle installation through-hole 312 where 32 another half knuckle-tooth 311, one of them second axis peace in the tenth connection sheet 33
Fill through-hole 332, the 5th short stop collar 35, one of them second axis installation through-hole the 332, the 4th in the tenth a piece of connection sheet 33
Its in 312, the 12nd connection sheets 33 of first axle installation through-hole where another half knuckle-tooth 311 of a bilateral gear plate 32
In a second axis installation through-hole 332, and by six roots of sensation axis 36 also all knock in the 2nd core ball 1.
Installed according to above-mentioned similarly mode, by the 7th axis 36 be successively inserted in the 9th connection sheet 33 another second
First axle installation through-hole 312 where one of them half knuckle-tooth 311 of axis installation through-hole 332, the 5th bilateral gear plate 32, the
On 332, the 6th short stop collars 35 of another the second axis installation through-hole, the tenth a piece of connection sheet 33 in ten connection sheets 33
First axle installation where one of them half knuckle-tooth 311 of 332, the 6th bilateral gear plates 32 of another the second axis installation through-hole
Another the second axis installation through-hole 332 in 312, the 12nd connection sheets 33 of through-hole, and the 7th axis 36 is also all knocked in
In 3rd core ball 1.So that on another half knuckle-tooth 311 of third bilateral gear plate 32 and the 5th bilateral gear plate 32
The engagement of one of them half knuckle-tooth 311 is connected；So that another half knuckle-tooth 311 and the 6th bilateral of the 4th bilateral gear plate 32
One of them half knuckle-tooth 311 engagement on gear plate 32 is connected.Then the 8th axis 36 is successively inserted in the tenth three pieces connection sheet
One of them second axis installation through-hole 332 on 33, the 5th bilateral gear plate 32 another half knuckle-tooth 311 where first
One of them second axis installation through-hole 332, the 7th short stop collar 35 in 312, the 14th connection sheets 33 of axis installation through-hole,
Another semicircle of one of them second axis installation through-hole 332 in the 15th connection sheet 33, the 6th bilateral gear plate 32
One of them second axis installation through-hole 332 in 312, the 16th connection sheets 33 of first axle installation through-hole where tooth 311, and
8th axis 36 is also all knocked in the 3rd core ball 1.
Finally, the 4th core ball 1 and gear chain type connector 3 of installation outermost end.According to above-mentioned same method, by
Nine axis 36 are successively inserted in another the second axis installation through-hole 332, third unilateral gear plate in the tenth three pieces connection sheet 33
Another the second axis installation through-hole the 332, the 8th in 312, the 14th connection sheets 33 of first axle installation through-hole on 31 centers of circle
332, the 4th circles of unilateral gear plate 31 of another the second axis installation through-hole in 35, the 15th connection sheets 33 of a short stop collar
Another the second axis installation through-hole 332 in 312, the 16th connection sheets 33 of first axle installation through-hole in the heart, and by the 9th
Root axis 36 is also all knocked in the 4th axis installation through-hole 13 of 1 inside of the 4th core ball.So that the 5th bilateral gear plate 32 is another
One and half knuckle-tooth 311 are engaged with the first axle installation through-hole 312 on 31 center of circle of third unilateral gear plate to be connected；So that the 6th
Another half knuckle-tooth 311 of bilateral gear plate 32 is nibbled with the first axle installation through-hole 312 on the 4th 31 center of circle of unilateral gear plate
It closes and is connected.Then first axle installation through-hole 312 of the third unilateral gear plate 31 far from the center of circle is inserted on the tenth axis 36, then
Second long stop collar 34 is packed on the tenth axis 36, then the 4th unilateral gear plate 31 is installed far from the first axle in the center of circle
Through-hole 312 is inserted on the tenth axis 36；Finally the tenth axis 36 is all knocked in the 4th core ball 1.
After round tube bending forming is all installed with gear chain type plug, by the hole 24 of the internal screw thread of 2 tail end of mandrel,
Plug is installed on bending machine, and installation of the plug on bending machine is completed by finger setting at installation through-hole 26.
A kind of round tube bending forming of the present embodiment with gear chain type plug first between core ball and core ball, core ball and mandrel
Between, it is connected by the chain type that gear engages, to connect and constrain mutual relationship, core ball is made to can be positioned at any position
It sets, improves plug to the support accuracy of thin-wall tube, so that the bending precision of thin-wall tube can be improved.Second core ball is in bending
Side setting is gradient, makes to be bonded between core ball even closer, is advantageously implemented the pipe fitting bending forming of small-bend radius.Third two
The distance between constraint is connected between core ball or between mandrel and core ball by 4 connection sheets, ensure that two neighboring gear
Meshing relation between plate.4th axis connection core ball and gear chain type connector, while also between two neighboring gear plate
Engagement provide rotary shaft.5th gear chain type connector and core ball are modularized design, can install institute according to actual needs
The core ball number and gear chain type connector length needed.6th axis and core ball, mandrel interference fit and unilateral gear plate, bilateral
Gear plate, connection sheet, long stop collar, short stop collar clearance fit, make between core ball, between core ball and mandrel by gear engage
Angle is adjusted, precision is high.The mandrel of 7th cylindrical body and spherical core ball are suitble to bend to the round tube of various specifications and size
Shape provides internal support.
Claims (5)
1. a kind of round tube bending forming gear chain type plug, which is characterized in that it is curved to be used to support round tube including 1 or more
The core ball (1) of pipeline section, the mandrel (2) for being used to support round tube straightway and for connecting between core ball (1) and core ball (1) and
Connect the gear chain type connector (3) between core ball (1) and mandrel (2)；Wherein the gear chain type connector (3) includes single
Side gear plate (31), bilateral gear plate (32), connection sheet (33), long stop collar (34), short stop collar (35) and axis (36)；It is described
Core ball (1) be spherical structure shell (14), offers the first mount type chamber (11), the core inside the shell (14)
Axis (2) is the mandrel of cylindrical structure；
2 pairs of the unilateral gear plate (31) point, each pair of 2, core ball (1) number is the logarithm of bilateral gear plate (32)
+ 1, each pair of 2 of the bilateral gear plate (32)；2 pairs of unilateral gear plates (31) are located at bilateral gear plate (32)
Both ends, 1 pair or more of bilateral gear plate (32) is installed between 2 pairs of unilateral gear plates (31).
2. a kind of round tube bending forming gear chain type plug as described in claim 1, which is characterized in that the unilateral side
One end of gear plate (31) is machined with half knuckle-tooth (311), the center of circle position of half knuckle-tooth (311) on the unilateral gear plate (31)
It sets and offers 1 first axle installation through-hole (312), it is same with the center of circle of half knuckle-tooth (311) on the unilateral gear plate (31)
Height and position is also provided with 1 first axle installation through-hole (312)；The both ends of the bilateral gear plate (32) are machined with half respectively
The center location of knuckle-tooth (311), half knuckle-tooth (311) on the bilateral gear plate (32) also offers first axle installation through-hole
(312)；Half knuckle-tooth (311) of side on half knuckle-tooth (311) and bilateral gear plate (32) on the unilateral gear plate (31)
Between engagement be connected；It engages and is connected also by half knuckle-tooth (311) between adjacent 2 side gear plates (32)；
There are two semicircle (331), the center location of two semicircles (331) is opened for the both ends processing of the connection sheet (33)
Equipped with the second axis installation through-hole (332)；Half knuckle-tooth (311) and the bilateral gear plate on the unilateral gear plate (31)
(32) two sides of half knuckle-tooth (311) on are separately installed with connection sheet (33)；
The long stop collar (34) and short stop collar (35) is hollow cylinder, the long stop collar (34) and short limit
The inside of ring (35) offers third axis installation through-hole (341)；
Wherein pass through axis between unilateral gear plate (31), long stop collar (34) described in 1, another 1 unilateral gear plate (31)
(36) clearance fit installs connected and unilateral gear plate (31), short stop collar (35) described in 1, another 1 unilateral gear plate
(31) also it is connected by the installation of axis (36) clearance fit between；Bilateral gear plate (32), short stop collar (35), another 1 described in 1
It is connected between a bilateral gear plate (32) by the installation of axis (36) clearance fit；The adjacent unilateral gear plate (31)
It is installed on axis (36) between bilateral gear plate (32) or between adjacent bilateral gear plate (32) and bilateral gear plate (32)
With a piece of connection sheet (33), i.e., the axis (36) sequentially passes through the second axis installation through-hole (332), 1 on 1 connection sheet (33)
Second axis installation through-hole on first axle installation through-hole (312), the 2nd connection sheet (33) on unilateral gear plate (31) center of circle
(332), the third axis installation through-hole (341) on short stop collar (33), the second axis installation through-hole on the 3rd connection sheet (33)
(332), the first axle installation through-hole (312) on the 2nd unilateral gear plate (31) center of circle, the second axis on the 4th connection sheet (33)
Installation through-hole (332)；The axis (36) sequentially passes through the second axis installation through-hole (332), 1 bilateral on 1 connection sheet (33)
Second axis installation through-hole (332), short limit on first axle installation through-hole (312), the 2nd connection sheet (33) on gear plate (32)
Second axis installation through-hole (332), the 2nd bilateral on third axis installation through-hole (341), the 3rd connection sheet (33) on ring (35)
Second axis installation through-hole (332) on first axle installation through-hole (312), the 4th connection sheet (33) on gear plate (32)；Described
Axis (36) also sequentially passes through the non-circular first axle installation through-hole (312) in the heart of 1 unilateral gear plate (31), on long stop collar (34)
Third axis installation through-hole (341), the first axle installation through-hole (312) on the 2nd unilateral gear plate (31) center of circle.
3. a kind of round tube bending forming gear chain type plug as described in claim 1, which is characterized in that the core ball
(1) wall surface of (11) two side body (14) of the first mount type chamber on offers the first mounting surface of connection sheet (33) respectively
(12)；The 4th axis installation through-hole (13) is offered on first mounting surface (12)；In the first mount type chamber (11)
Gear chain type connector (3) is installed, first mounting surface (12) and connection sheet (33) fit placement, and the core
It is equipped with axis (36) in 4th axis installation through-hole (13) of ball (1), and the axis (36) and the 4th axis of core ball (1) installation are logical
Hole (13) interference fit installation；Inclined surface is offered on the shell (14) of first described mount type chamber (11) the longitudinal midline position
(15)。
4. a kind of round tube bending forming gear chain type plug as described in claim 1, which is characterized in that the mandrel
(2) the second mount type chamber (21), the wall surface of (21) two side body of the second mount type chamber are offered close to core ball (1) one end
The second mounting surface (22) of connection sheet (33) is offered respectively；It is logical that the installation of the 5th axis is offered on second mounting surface (22)
Hole (23)；Gear chain type connector (3) is installed in the second mount type chamber (21), second mounting surface (22) with
Connection sheet (33) fits placement, and is equipped with axis (36) in the 5th axis installation through-hole (23) of the mandrel (2), and described
Axis (36) and mandrel (2) the 5th axis installation through-hole (23) be interference fitted install；
The other end middle position of the mandrel (2) offers tapped hole (24), and the mandrel (2) outer surface is set
Have mounting platform (25), installation through-hole (26) are offered on the mounting platform (25).
5. a kind of round tube bending forming gear chain type plug as described in claim 1, which is characterized in that the long limit
Position ring (34) and its two sides unilateral gear plate (31) be installed in mandrel (2) the second mount type chamber (21) or outermost side core
In first mount type chamber (11) of ball (1)；The bilateral gear plate (32) of the short stop collar (35) and its two sides is respectively mounted
In the first mount type chamber (11) of other core balls (1) in addition to outermost side core ball (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811075821.6A CN109201807B (en) | 2018-09-14 | 2018-09-14 | Gear chain type core rod for bending and forming circular pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811075821.6A CN109201807B (en) | 2018-09-14 | 2018-09-14 | Gear chain type core rod for bending and forming circular pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109201807A true CN109201807A (en) | 2019-01-15 |
| CN109201807B CN109201807B (en) | 2023-06-27 |
Family
ID=64983512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811075821.6A Active CN109201807B (en) | 2018-09-14 | 2018-09-14 | Gear chain type core rod for bending and forming circular pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109201807B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332450A (en) * | 2018-11-02 | 2019-02-15 | 浙江工业大学 | A kind of bend pipe plug gear chain type connector |
| CN112453136A (en) * | 2020-09-22 | 2021-03-09 | 成都飞机工业（集团）有限责任公司 | Core rod for push bending forming of small-bending-radius guide pipe and using method thereof |
| CN114346026A (en) * | 2022-01-06 | 2022-04-15 | 南昌航空大学 | Push away curved device |
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| DE2358756A1 (en) * | 1973-08-30 | 1975-03-20 | Ind Meccanica Brevetti Pedrazz | BENDING PIPE |
| JPS52146759A (en) * | 1976-06-01 | 1977-12-06 | Setsuyou Koukan Kk | Core material for bending hollow material with slits |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332450A (en) * | 2018-11-02 | 2019-02-15 | 浙江工业大学 | A kind of bend pipe plug gear chain type connector |
| CN112453136A (en) * | 2020-09-22 | 2021-03-09 | 成都飞机工业（集团）有限责任公司 | Core rod for push bending forming of small-bending-radius guide pipe and using method thereof |
| CN114346026A (en) * | 2022-01-06 | 2022-04-15 | 南昌航空大学 | Push away curved device |
| CN114346026B (en) * | 2022-01-06 | 2023-05-09 | 南昌航空大学 | Pushing bending device |
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| Publication number | Publication date |
|---|---|
| CN109201807B (en) | 2023-06-27 |
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