CN101362177B - Forming technique of hose elbow core - Google Patents

Forming technique of hose elbow core Download PDF

Info

Publication number
CN101362177B
CN101362177B CN2008101207210A CN200810120721A CN101362177B CN 101362177 B CN101362177 B CN 101362177B CN 2008101207210 A CN2008101207210 A CN 2008101207210A CN 200810120721 A CN200810120721 A CN 200810120721A CN 101362177 B CN101362177 B CN 101362177B
Authority
CN
China
Prior art keywords
pipe
end
bulge loop
process
hose elbow
Prior art date
Application number
CN2008101207210A
Other languages
Chinese (zh)
Other versions
CN101362177A (en
Inventor
王林秋
Original Assignee
王林秋
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 王林秋 filed Critical 王林秋
Priority to CN2008101207210A priority Critical patent/CN101362177B/en
Publication of CN101362177A publication Critical patent/CN101362177A/en
Application granted granted Critical
Publication of CN101362177B publication Critical patent/CN101362177B/en

Links

Abstract

The invention provides a forming process of hose bend cores, and a processing device used in the process, belonging to the field of mechanical technology and solving the problems that in the pressure casting processing, the existing hose bend cores can not be thermally treated, have short service life and high cost; and the products are easy to crack in the red punching processing. The forming process of hose bend cores is realized by the following steps of: a. feed preparing; b. convex ring processing; c. hose body bending; and d. flange forming. The processing device of the hose bend cores comprises a convex ring forming device and a necking forming device. The convex ring forming device comprises a bracket and a holding fixture which is arranged on the bracket and used for fixing pipes, and a rolling mechanism is arranged at one side of the holding fixture. The necking forming device comprises the bracket and the holding fixture which is arranged on the bracket and used for fixing the pipes, and a forming head is arranged at one side of the holding fixture. The forming process has simple manufacturing method, beautiful product appearance, low cost and stable and reliable quality.

Description

The moulding process of hose elbow core

Technical field

The invention belongs to field of mechanical technique, relate to a kind of moulding process of hose elbow core.

Background technology

The hose elbow core of existing application in air-conditioning or other field generally is to adopt die casting and redly dash two kinds of processing modes and come moulding.Adopt die-casting process to exist the defective that can't overcome: 1, during die casting because liquid metal filling die cavity speed is high, fluidised form is unstable, foundry goods is prone to produce pore, can not heat-treat; 2, die casting and the life-span of the product that goes out is lower and unsuitable small lot batch manufacture; 3, the product pipe walls of die casting is thicker, and the raw material consumption is big, and production cost is high.Red is to utilize material heating back tensile strength and shearing strength reduces greatly, the characteristic of ductility raising and the process of punch process of carrying out towards processing mode.Because red purpose of dashing is in order to reduce the required pressure of punching press, improve size, the form accuracy of punch process, make red dashing and the product easy of crack that obtains.Owing to the red product size that obtains of dashing can only be decided according to mould, need the just necessary mfg. moulding die in addition of product of different size in addition, improved production cost.

Summary of the invention

The objective of the invention is to the problems referred to above, provide that a kind of processing technology is simple, production cost is low, product pipe walls is thin, flow is big, can save a large amount of raw material and the moulding process of the hose elbow core that the product design that produces is attractive in appearance.

Another object of the present invention is to the problems referred to above, provides a kind of simple in structure, and good forming effect can process the hose elbow core bulge loop shaped device of the bulge loop on the hose elbow core easily.

It is to the problems referred to above that the present invention also has a purpose, provides a kind of simple in structure, can easily the truncated cone-shaped pipe end with step be carried out the hose elbow core necking forming device of reducing processing.

For achieving the above object, the present invention has adopted following technical proposal: the moulding process of this hose elbow core is characterized in that this technology comprises the steps:

A kind of moulding process of hose elbow core is characterized in that, this technology comprises the steps:

A, get the raw materials ready: prepare a pipe cylindraceous, and pipe is carried out annealing in process;

B, processing bulge loop: process several bulge loops in an end of the pipe mode through radially roll extrusion;

C, body bending: bending is carried out at the middle part of pipe;

D, flange moulding: the end at the other end of pipe processes flange, gets product.

The intercepting on common cold plasticity preferred metal pipe of pipe in this programme obtains for one section; Pipe is carried out the toughness that annealing in process can improve pipe; Prevent splitting of pipe, also can process from intercepting pipe on the metal tube of annealed processing.One end of hose elbow core forms bulge loop through the mode of radially roll extrusion; Replaced the hose elbow core that cast forms, like this, can make the tube wall of the hose elbow core that this method produces done thinlyyer; Saved material, also prevented pore to occur simultaneously because of cast makes flexible pipe.Bending is carried out at the middle part of pipe, and crooked degree can be decided with the needs of reality.The processing sequence of four above-mentioned steps can be according to the needs transposing of reality.

In the moulding process of above-mentioned hose elbow core; In above-mentioned step b; End at pipe inserts when pipe rotates and can circumferentially move the milled head that also can under the frictional force effect, rotate voluntarily with respect to tube wall; Milled head has a roll extrusion bulge loop, can apply radially outer active force to tube wall at milled head roll extrusion bulge loop in the circumferential moving process of tube wall, thereby on pipe, forms an outwards outstanding bulge loop.Behind the clamp clamps pipe milled head be inserted in the end of pipe and the roll extrusion bulge loop of milled head along radially outward tube wall being applied active force, make pipe to evagination, along with the rotation of pipe, process a bulge loop in the position at roll extrusion bulge loop place.Roll extrusion bulge loop and tube inner wall adopt rolling friction, reduce between the two frictional force and the heat of generation.Among the present invention, before step b, can be earlier shrink processing, the bore of this end is diminished, process bulge loop at an end that shrinks then at an end of pipe.

In the moulding process of above-mentioned hose elbow core; In above-mentioned step b, after the processing of a bulge loop of completion, the position between adjustment pipe and the milled head; Turne tube applies radially outer active force by milled head to tube wall simultaneously once more, processes another bulge loop; Repeat aforesaid operations, on pipe, process a plurality of bulge loops.Position between pipe and the milled head is the direction of axis line adjustment along pipe, and the spacing of adjustment can be confirmed according to the needs of reality; The processing sequence of a plurality of bulge loops can be from inside to outside, also can be from outside to inside, and the mode of this roll extrusion all is to change adjustment in the number and the spacing between the bulge loop of processing bulge loop, and is applied widely.

As another kind of scheme; In the moulding process of above-mentioned hose elbow core; In above-mentioned step b,, pipe can circumferentially move the milled head that also can under the frictional force effect, rotate voluntarily in the end insertion of pipe when rotating with respect to tube wall, and milled head has several roll extrusion bulge loops; Can apply radially outer active force to tube wall at milled head roll extrusion bulge loop in the circumferential moving process of tube wall, thereby on pipe, form the outstanding bulge loop of plurality of outward.Roll extrusion bulge loop through on the milled head processes a plurality of bulge loops simultaneously, and roll extrusion once can reach requirement, has improved working (machining) efficiency significantly.

In the moulding process of above-mentioned hose elbow core, in above-mentioned step b, process a bulge loop in the first mode of an end of pipe through axial compression, the mode through radially roll extrusion processes all the other bulge loops then.The external diameter of the bulge loop that processes of mode through extruding is greater than the external diameter of the bulge loop that processes through the roll extrusion mode, and the bulge loop that processes of roll extrusion mode is between the port of bulge loop that the mode of extruding processes and pipe.

In the moulding process of above-mentioned hose elbow core, in above-mentioned step b, when bulge loop of pipe processing outermost end, the end of pipe receives radial and axial active force simultaneously and forms the reducing joint of truncated cone-shaped in the pipe outermost end.

In the moulding process of above-mentioned hose elbow core, in above-mentioned steps d, the end support that pipe is not provided with bulge loop one end is big, and will support big reducing formation truncated cone-shaped end, end, and the truncated cone-shaped end is flattened vertically, forms flange.

In the moulding process of above-mentioned hose elbow core; In above-mentioned steps d; The end support that pipe is not provided with bulge loop one end is big, will support most outer end again and continue the big one or many of support, will support big part then once more and carry out the truncated cone-shaped end that reducing formation has step; And the truncated cone-shaped end that will have step flattens vertically, thereby forms the flange with step at tube end.

A kind of bulge loop shaped device of hose elbow core; Comprise support and be arranged on the anchor clamps that are used for fixing pipe on the support, anchor clamps close up the back and form the chamber that adapts with tubular shape, it is characterized in that; Described anchor clamps and rotating driving device link and can under the rotating driving device effect, drive pipe and rotate; Side at anchor clamps is provided with rolling mechanism, and this rolling mechanism comprises a rotating shaft, and an end of rotating shaft is fixed with and can inserts tube end and partly lean the milled head at tube wall; The other end with move radially driver and link to each other; Milled head has at least one roll extrusion bulge loop, and milled head moves and rotation under the frictional force effect with respect to tube wall is circumferential when rotating driving device drives pipe and rotates, and moves radially the driver drives rotating shaft simultaneously and moves radially tube wall is applied radially outer active force.

Pipe is fixed on the anchor clamps; Driving pipe through the rotating driver that links to each other with anchor clamps rotates; In rotation process, the axial line of milled head departs from mutually with the axial line of pipe and the roll extrusion bulge loop partly is close to tube wall, moves radially along pipe through moving radially the driver drives milled head simultaneously; Make milled head in the pipe rotation process, apply outside radial compression power, thereby on pipe, form an outwards outstanding bulge loop tube wall.

When milled head has only a roll extrusion bulge loop, in process, need the position between anchor clamps and the rolling mechanism be adjusted, can be provided with the spacing guiding mechanism that is used to adjust spacing between anchor clamps and the rolling mechanism between rolling mechanism and the support for this reason.Milled head gets into and withdraws from the inner of pipe through the spacing guiding mechanism.

A kind of necking forming device of hose elbow core; Comprise support and be arranged on the anchor clamps that are used for fixing pipe on the support, anchor clamps close up the back and form the chamber that adapts with tubular shape, it is characterized in that; One side of described anchor clamps is provided with moulded head; This moulded head comprises a holder and a roof pressure post, and the roof pressure post partly inserts in the holder and with respect to holder and endwisely slips, and between roof pressure post and holder, is provided with back-moving spring; The outer end of roof pressure post is taper type, and the end that is inserted with roof pressure post one end at holder is provided with the taper type groove that is positioned at roof pressure post periphery.

Compared with prior art, advantage is:

1, the moulding process of this hose elbow core adopts common pipe to make hose elbow core through the cold-stamped mode, has replaced the method for cast molding, makes this hose coupling not have pore-free, has improved the quality of product; Simultaneously,, make the tube wall of flexible pipe under the prerequisite of ensuring the quality of products, can do thinlyyer, saved material owing to adopt the cold-stamped mode.

2, can confirm needed number according to the needs of reality at the bulge loop of making hose elbow core, and the method for making is simple, the good looking appearance of making.

3, the moulding process of this hose elbow core adopts the cold-stamped mode to make, and can process the hose elbow core of various different lengths, and not need more mold exchange, has reduced the cost of making, and can better adapt to the demand in market simultaneously.

4, the device structure that adopted of this hose elbow core moulding process is simple, easy operating, and the stable and reliable product quality of processing gained.

Description of drawings

Fig. 1 is the flowage structure sketch map that the moulding process of this hose elbow core provides.

Fig. 2 to Figure 10 is respectively the structural representation of moulding process various states of hose elbow core in process of this hose elbow core.

Figure 11 is the structural representation of the bulge loop shaped device of hose elbow core in the moulding process of this hose elbow core.

Figure 12 is the another kind of structural representation of the bulge loop shaped device of hose elbow core in the moulding process of this hose elbow core.

Figure 13 is the structural representation of the necking forming device of hose elbow core in the moulding process of this hose elbow core.

Among the figure, pipe 1, bulge loop 2, flange 3, anchor clamps 4, milled head 5, the body of rod 51, pedestal 52, roll extrusion bulge loop 6, support 7, support 8, rotating shaft 9, moulded head 10, holder 11, roof pressure post 12, back-moving spring 13, groove 14, truncated cone-shaped end 15, motor 16, main shaft 17, cylinder 1, horizontal supporting plate 19, cylinder 2 20, vertical supporting plate 21, movable stand 22, cylinder 3 23, rotating disk 24, positioning mandril 25.

The specific embodiment

Below be specific embodiment of the present invention and combine accompanying drawing, technical scheme of the present invention is done further to describe, but the present invention is not limited to these embodiment.

Embodiment 1:

Extremely shown in Figure 10 like Fig. 1, the moulding process of this hose elbow core, this technology comprises the steps: that a gets the raw materials ready, b processes bulge loop 2, the c body is crooked, the moulding of d flange, processes hose elbow core.Before processing bulge loop 2, can carry out carrying out earlier reducing in the end.Step in Fig. 1 frame of broken lines can be implemented according to actual needs.

Specifically, in a material preparation step, prepare a pipe 1 cylindraceous, normally on common cold plasticity preferred metal pipe one section of intercepting and, prevent splitting of pipe 1, pipe 1 is carried out annealing in process; Or intercepting section of a pipe 1 obtains from the metal tube of annealed processing.Pipe 1 is carried out the toughness that annealing in process can improve pipe 1.

Before step b, can be earlier shrink processing at an end of pipe, the bore of this end is diminished, process bulge loop at an end that shrinks then.In b processing bulge loop 2 steps, process several bulge loops 2 at an end of pipe 1.Its detailed process is: the end at pipe 1 processes a bulge loop 2 through the mode of axial compression earlier, and the mode through radially roll extrusion processes its excess-three bulge loop 2 between the port of this bulge loop 2 and pipe 1 then.The external diameter of the above-mentioned bulge loop 2 that forms through the axial compression mode can be greater than the external diameter of the bulge loop that processes through radially roll extrusion mode 2.Position between pipe 1 and the milled head is the direction of axis line adjustment along pipe 1, and processing sequence is from inside to outside.

Axial compression is meant in the one or both ends of pipe 1 and applies axial pressure simultaneously, and pipe parts is radially outward being protruded, and forms bulge loop.

Shown in figure 11; Radially the mode of roll extrusion is following: pipe 1 is fixed on the anchor clamps 4; End at pipe 1 inserts when pipe 1 rotates and can circumferentially move the milled head 5 that also can under the frictional force effect, rotate voluntarily with respect to pipe 1 inwall; Milled head 5 has a roll extrusion bulge loop 6; Under the effect that moves radially driver, the axial line of milled head 5 departs from the axial line of pipe 1 mutually and roll extrusion bulge loop 6 parts are close to pipe 1 inwall and pipe 1 inwall is applied radially outer active force, drives pipe 1 through the rotating driver that links to each other with anchor clamps 4 and rotates; Can apply radially outer active force to pipe 1 inwall at milled head 5 roll extrusion bulge loop 6 in the circumferential moving process of pipe 1 inwall, thereby on pipe 1, form an outwards outstanding bulge loop 2.After accomplishing the processing of a bulge loop 2, the position between adjustment pipe 1 and the milled head 5, turne tube 1 applies radially outer active force by 5 pairs of pipe 1 inwalls of milled head simultaneously once more, processes another bulge loop 2; Repeat aforesaid operations, on pipe 1, process a plurality of bulge loops 2.When bulge loop 2 of pipe processing 1 outermost end, the end of pipe 1 receives radial and axial active force simultaneously and forms the reducing joint of truncated cone-shaped in pipe 1 outermost end.

The equipment of using when using the mode of radially roll extrusion to process bulge loop 2 is a kind of bulge loop shaped device of hose elbow core; Comprise support 7 and be arranged on the anchor clamps 4 that are used for fixing pipe 1 on the support 7; Anchor clamps 4 close up the back and form the chamber that adapts with pipe 1 shape; Anchor clamps 4 link with the rotating driving device that can drive anchor clamps 4 rotations, are provided with rolling mechanism in a side of anchor clamps 4, and this rolling mechanism comprises a rotating shaft 9; One end of rotating shaft 9 is fixed with the milled head 5 that can insert in pipe 1 end, and the other end of rotating shaft 9 extend in the pedestal 91 and through bearing and is connected with pedestal 91.The inwall of roll extrusion bulge loop 6 and pipe 1 adopts rolling friction, reduces between the two frictional force and the heat of generation.

Milled head 5 has a roll extrusion bulge loop 6, and support 8 is provided with promotion roll extrusion bulge loop 6 and leans the driver that moves radially that applies radially outer active force at pipe 1 inwall and to pipe 1 inwall.

In process, need the position between anchor clamps 4 and the rolling mechanism be adjusted, can between rolling mechanism and support 8, be provided with the spacing guiding mechanism that is used to adjust spacing between anchor clamps 4 and the rolling mechanism for this reason.Get into and withdraw from the inner of pipe 1 through guiding mechanism at milled head 5.The spacing of adjustment can be confirmed according to the needs of reality; The mode of this roll extrusion of a plurality of bulge loops 2 all is to change adjustment in the number and the spacing between the bulge loop 2 of processing bulge loop 2, and applicability is strong.

Rotating driving device comprises the main shaft 17 that motor 16 links to each other with rotating shaft with motor 16, and anchor clamps 4 are fixed on the main shaft 17.Move radially the horizontal supporting plate 19 that driver comprises that cylinder 1 is connected with piston rod with cylinder 1, guiding mechanism is arranged on the horizontal supporting plate 19.The spacing guiding mechanism comprises the vertical supporting plate 21 that cylinder 2 20 is connected with piston rod with cylinder 2 20, and milled head 5 is fixed on the vertical supporting plate 21.For the ease of the control spacing, a spacing detent mechanism is set on support 8, this spacing detent mechanism is a rotating disk 24 that is rotatably connected on the support 8, fixing some positioning mandrils 25 on rotating disk 24, positioning mandril 25 can lean with horizontal supporting plate 19.The length of positioning mandril 25 is different, and the length difference of adjacent two positioning mandrils 25 is the spacing of bulge loop 2.When processing bulge loop 2, positioning mandril 25 leans with horizontal supporting plate 19 and realizes the location like this.After machining a bulge loop 2, rotate rotating disk 24, an other positioning mandril 25 is leant with horizontal supporting plate 19.So conversion is until machining all bulge loops 2.

Anchor clamps 4 clamp in the end that pipe 1 back milled head 5 is inserted in pipe 1 and the roll extrusion bulge loop 6 of milled head 5 along radially outward pipe 1 inwall being applied active force; Make pipe 1 to evagination; Along with the rotation of pipe 1, process a bulge loop 2 in the position at roll extrusion bulge loop 6 places.

In c body bending step, bending is carried out at the middle part of pipe 1.At the other end

Process the reducing of hose elbow core.

Shown in figure 13; The equipment of when the processing reducing, using is a kind of necking forming device of hose elbow core, comprises support 7 and is arranged on the anchor clamps 4 that are used for fixing pipe 1 on the support 7, and anchor clamps 4 close up the back and form the chamber that adapts with pipe 1 shape; One side of anchor clamps 4 is provided with moulded head 10; This moulded head 10 comprises a holder 11 and a roof pressure post 12, and roof pressure post 12 parts insert in the holder 11 and with respect to holder 11 and endwisely slip, and between roof pressure post 12 and holder 11, is provided with back-moving spring 13; The outer end of roof pressure post 12 is taper type, and the end that is inserted with roof pressure post 12 1 ends at holder 11 is provided with the taper type groove 14 that is positioned at roof pressure post 12 peripheries.

This necking forming device is provided with on the movable stand 22, on support 7, is fixed with cylinder 3 23, promotes the necking forming device through cylinder 3 23 and moves.The necking forming here also can adopt punch press to process.

In d flange forming step, process flange 3 in the end of the other end of pipe 1, get product.Process is that pipe 1 is not provided with the end support of bulge loop 2 one ends is big, and will support big end reducing and form truncated cone-shaped end 15, truncated cone-shaped end 15 is flattened vertically formation flange 3.The end support that pipe 1 is not provided with bulge loop 2 one ends is big; To support most outer end again and continue support greatly once, form truncated cone-shaped end 15, will support big part then once more and carry out reducing with step; And reducing part flattened vertically, thereby form flange 3 with step in pipe 1 end.

Embodiment 2:

Shown in figure 12; The content of embodiment 2 is basically with embodiment 1, and difference is, in step b; End at pipe 1 inserts when pipe 1 rotates and can circumferentially move the milled head 5 that also can under the frictional force effect, rotate voluntarily with respect to pipe 1 inwall; Milled head 5 has several roll extrusion bulge loops 6, can apply radially outer active force to pipe 1 inwall at milled head 5 roll extrusion bulge loop 6 in the circumferential moving process of pipe 1 inwall, thereby on pipe 1, forms the outstanding bulge loop 2 of plurality of outward.Process a plurality of bulge loops 2 simultaneously through the roll extrusion bulge loop 6 on the milled head 5, roll extrusion once can reach requirement, has improved working (machining) efficiency significantly.

Specific embodiment described herein only is that the present invention's spirit is illustrated.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.

Although this paper has used terms such as pipe 1, bulge loop 2, flange 3, anchor clamps 4, milled head 5, the body of rod 51, pedestal 52, roll extrusion bulge loop 6, support 7, support 8, rotating shaft 9, moulded head 10, holder 11, roof pressure post 12, back-moving spring 13, groove 14, truncated cone-shaped end 15, motor 16, main shaft 17, cylinder 1, horizontal supporting plate 19, cylinder 2 20, vertical supporting plate 21, movable stand 22, cylinder 3 23, rotating disk 24, positioning mandril 25 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; It all is contrary with spirit of the present invention being construed to any additional restriction to them.

Claims (8)

1. the moulding process of a hose elbow core is characterized in that, this technology comprises the steps:
A, get the raw materials ready: prepare a pipe cylindraceous (1), and pipe (1) is carried out annealing in process;
B, processing bulge loop (2): process several bulge loops (2) in an end of pipe (1) mode through radially roll extrusion;
C, body bending: bending is carried out at the middle part of pipe (1);
D, flange (3) moulding: the end at the other end of pipe (1) processes flange (3), gets product.
2. the moulding process of hose elbow core according to claim 1; It is characterized in that; Among the described step b; End at pipe (1) inserts when pipe (1) rotates and can circumferentially move the milled head (5) that also can under the frictional force effect, rotate voluntarily with respect to pipe (1) inwall; Milled head (5) has a roll extrusion bulge loop (6), can apply radially outer active force to pipe (1) inwall at milled head (5) roll extrusion bulge loop (6) in the circumferential moving process of pipe (1) inwall, thereby goes up outwards outstanding bulge loop (2) of formation at pipe (1).
3. the moulding process of hose elbow core according to claim 2; It is characterized in that; Among the described step b, accomplish the processing of a bulge loop (2) after, the position between adjustment pipe (1) and the milled head (5); Turne tube (1) applies radially outer active force by milled head (5) to pipe (1) inwall simultaneously once more, processes another bulge loop (2); Repeat aforesaid operations, on pipe (1), process a plurality of bulge loops (2).
4. the moulding process of hose elbow core according to claim 1; It is characterized in that; In the moulding process of described hose elbow core; In above-mentioned step b,, pipe (1) can circumferentially move the milled head (5) that also can under the frictional force effect, rotate voluntarily in the end insertion of pipe (1) when rotating with respect to pipe (1) inwall, and milled head (5) has several roll extrusion bulge loops (6); Can apply radially outer active force to pipe (1) inwall at milled head (5) roll extrusion bulge loop (6) in the circumferential moving process of pipe (1) inwall, thereby go up the outstanding bulge loop (2) of formation plurality of outward at pipe (1).
5. according to the moulding process of claim 1 or 2 or 3 or 4 described hose elbow cores; It is characterized in that; Among the described step b, process a bulge loop (2) in the first mode through axial compression of an end of pipe (1), the mode through radially roll extrusion processes all the other bulge loops (2) then.
6. the moulding process of hose elbow core according to claim 5; It is characterized in that; Among the described step b; When pipe processing (a 1) bulge loop of outermost end (2), the end of pipe (1) receives radial and axial active force simultaneously and forms the reducing joint of truncated cone-shaped in pipe (1) outermost end.
7. the moulding process of hose elbow core according to claim 5; It is characterized in that; In the described steps d, the end support that pipe (1) is not provided with bulge loop (2) one ends is big, and will support big reducing formation truncated cone-shaped end (15), end; Truncated cone-shaped end (15) are flattened vertically, form flange (3).
8. the moulding process of hose elbow core according to claim 7; It is characterized in that in the described steps d, the end support that pipe (1) is not provided with bulge loop (2) one ends is big; To support most outer end again and continue the big one or many of support; To support big part then once more and carry out reducing and form and to have the truncated cone-shaped end (15) of step, and the truncated cone-shaped end (15) that will have a step flattens vertically, thereby formation has the flange (3) of step in pipe (1) end.
CN2008101207210A 2008-09-02 2008-09-02 Forming technique of hose elbow core CN101362177B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008101207210A CN101362177B (en) 2008-09-02 2008-09-02 Forming technique of hose elbow core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2008101207210A CN101362177B (en) 2008-09-02 2008-09-02 Forming technique of hose elbow core

Publications (2)

Publication Number Publication Date
CN101362177A CN101362177A (en) 2009-02-11
CN101362177B true CN101362177B (en) 2012-07-18

Family

ID=40388884

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2008101207210A CN101362177B (en) 2008-09-02 2008-09-02 Forming technique of hose elbow core

Country Status (1)

Country Link
CN (1) CN101362177B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102756246B (en) * 2012-07-30 2014-10-08 十堰园钧工贸有限公司 Composite precision forming method for fender bracket of automobile
CN104128520B (en) * 2014-07-25 2016-03-02 大连振兴船舶管件厂 The reducing extruding manufacturing process of docking copper ring
CN106881422B (en) * 2017-03-02 2018-07-27 福州诺贝尔福基机电有限公司 Oil filling pipe input end moulding process
CN108380716B (en) * 2018-03-23 2020-01-07 浙江大学宁波理工学院 Automatic annular thread screw driving device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4388752A (en) * 1980-05-06 1983-06-21 Nuovo Pignone S.P.A. Method for the sealtight jointing of a flanged sleeve to a pipeline, especially for repairing subsea pipelines laid on very deep sea bottoms
JP2003314757A (en) * 2002-04-25 2003-11-06 Komatsu Ltd Untipped type low-pressure hose
CN2586043Y (en) * 2001-09-24 2003-11-12 珠海凯达新材料研究所有限公司 Tube with convex ring on its end
JP2005095983A (en) * 2003-09-05 2005-04-14 Nsk Ltd Bellows pipe, manufacturing method therefor, and die
CN2700020Y (en) * 2004-03-30 2005-05-18 庞浩辉 A protruding ring forming tool for seat type metal pipe
EP1727632A1 (en) * 2004-03-24 2006-12-06 Quickflange As Method and apparatus for cold joining flanges and couplings elements to pipes
CN101085501A (en) * 2007-06-20 2007-12-12 洪信章 Method for processing thin wall metal elbow
JP2008137030A (en) * 2006-11-30 2008-06-19 Jfe Steel Kk Squeezing device for electric resistance welded steel tube

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4388752A (en) * 1980-05-06 1983-06-21 Nuovo Pignone S.P.A. Method for the sealtight jointing of a flanged sleeve to a pipeline, especially for repairing subsea pipelines laid on very deep sea bottoms
CN2586043Y (en) * 2001-09-24 2003-11-12 珠海凯达新材料研究所有限公司 Tube with convex ring on its end
JP2003314757A (en) * 2002-04-25 2003-11-06 Komatsu Ltd Untipped type low-pressure hose
JP2005095983A (en) * 2003-09-05 2005-04-14 Nsk Ltd Bellows pipe, manufacturing method therefor, and die
EP1727632A1 (en) * 2004-03-24 2006-12-06 Quickflange As Method and apparatus for cold joining flanges and couplings elements to pipes
CN2700020Y (en) * 2004-03-30 2005-05-18 庞浩辉 A protruding ring forming tool for seat type metal pipe
JP2008137030A (en) * 2006-11-30 2008-06-19 Jfe Steel Kk Squeezing device for electric resistance welded steel tube
CN101085501A (en) * 2007-06-20 2007-12-12 洪信章 Method for processing thin wall metal elbow

Also Published As

Publication number Publication date
CN101362177A (en) 2009-02-11

Similar Documents

Publication Publication Date Title
CN101380648B (en) Copper aluminum composite pipes shaping method
CN104552991B (en) De-molding device for large-length-diameter-ratio composite material thin wall pipe and de-molding method of de-molding device
CN104307908B (en) A kind of method waiting channel formation mould and shaping pipe thereof of thick-wall tube
CN102240772B (en) Forming method of single elbow crankshaft forgings
US10265746B2 (en) Rotary extrusion producing method for producing inner ring rib with large aspect ratio formed of hollow billet
KR101649845B1 (en) Method for producing a hollow engine valve
CN102240716B (en) Bending and horizontal type reshaping method of high-pressure bend
CN104148558B (en) The production method of T-shaped ring-type forge piece blank reheating in SB564 UNS N06690 alloy large-size
CN100500320C (en) Device for improving forming limit of hydromechanical drawing of sheet material and method thereof
JP4418168B2 (en) Manufacturing method of elliptical ring
CN104588428A (en) Circular channel and corner based extruding and moulding mold and circular channel and corner based extruding and moulding method of magnesium alloy cup-shaped component
CN102176987B (en) Method of profiling a tube of given length
CN103008976B (en) Spinning production technology for belt pulley
CN100506422C (en) Flange of wind power generation tower barrel forging shaping process
CN101829716B (en) Method for pressing nuclear power main pipeline
CN201791789U (en) Reshaping device of steel pipe
CN101279332B (en) Method for preparing magnesium alloy strip blank and extruding device
CN102059267B (en) Inside screw cylindrical gear rotary cold extruding die
CN103624502A (en) Cold-forging plastic molding technology of brake piston
CN103212635B (en) Car transmission synchronizer gear ring fine blanking and deep drawing combined forming process and mold
CN105107915A (en) Technological method for precise spinning forming of large magnesium alloy thin-walled cylindrical part
CN103920795B (en) A kind of heat expansion vibration combined forming process of solid particle of automobile rear axle housing
CN104307899B (en) A kind of special pipe processing technique
CN103191945A (en) Method and device for high-pressure hydraulic flange plasticity forming
CN101480670B (en) Squeezing-revolving shaping method of magnesium alloy wheel and device thereof

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model