CN207222670U - A kind of reducing abnormity pipe part expanding die - Google Patents

A kind of reducing abnormity pipe part expanding die Download PDF

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Publication number
CN207222670U
CN207222670U CN201720774095.1U CN201720774095U CN207222670U CN 207222670 U CN207222670 U CN 207222670U CN 201720774095 U CN201720774095 U CN 201720774095U CN 207222670 U CN207222670 U CN 207222670U
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China
Prior art keywords
sliding block
plug
pipe part
bulging
die
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CN201720774095.1U
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Inventor
王岩松
朱福
刘宁宁
王孝兰
郭辉
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Shanghai University of Engineering Science
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Shanghai University of Engineering Science
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Abstract

It the utility model is related to a kind of reducing abnormity pipe part expanding die, including bulging component and the upper die component and lower mold assemblies that are oppositely arranged, bulging component includes the fork knife for being arranged on the mold cavity both ends of upper die component, it is arranged on the plug mechanism at the mold cavity both ends of lower mold assemblies and the water injecting mechanism being arranged on plug mechanism, plug mechanism includes sequentially connected cylinder, sliding block and plug, cylinder is fixed on lower mold assemblies, sealing ring is arranged with plug, the end of bulging pipe fitting is treated for being inserted at work, gap is separated between sealing ring and sliding block, knife is pitched during molding and is inserted into the gap, and coordinate crush seal circle with sliding block, it is allowed to deformation expansion, it will treat the end part seal of bulging pipe fitting.Compared with prior art, the utility model can be rapidly completed the shaping of reducing abnormity pipe part, and production efficiency is high, and accuracy is high, ensures that the pipe part individual difference that bulging obtains is small, and total quality is high.

Description

A kind of reducing abnormity pipe part expanding die
Technical field
Reducing abnormity tubing Parts manufacturing technology field is the utility model is related to, more particularly, to a kind of reducing abnormity tubing Part expanding die.
Background technology
A kind of reducing abnormity pipe part has variable diameters, the size characteristic of multi-angle.Tube bulge technology is a kind of profit By the use of liquid as medium, by controlling tubing internal liquid pressure and material to flow the technique for realizing that hollow part manufactures.At present Pipe part expanding die be generally made of upper lower impressions, both end of which is each provided with a plug.Original mould may have Finished product patch mould precision it is not high the shortcomings of, to overcome the shortcomings of original technology, realize the reducing abnormity pipe part lightweight and Production cost is reduced, therefore designs the bulging die, realizes bulging process.
The content of the invention
The purpose of this utility model is exactly to provide a kind of reducing abnormity to overcome the problems of the above-mentioned prior art Pipe part expanding die.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of reducing abnormity pipe part expanding die, including the upper die component and lower mold assemblies being oppositely arranged, upper module Part and lower mold assemblies, which are equipped with, to be used to place the mold cavity for treating bulging pipe fitting, which further includes bulging component, the bulging Component includes being arranged on the fork knife at the mold cavity both ends of upper die component, is arranged on the plug at the mold cavity both ends of lower mold assemblies Mechanism and the water injecting mechanism being arranged on plug mechanism, the plug mechanism include sequentially connected cylinder, sliding block and plug, The cylinder is fixed on lower mold assemblies, and sliding block is slidably connected with lower mold assemblies, and sealing ring is arranged with plug, in work The end of bulging pipe fitting is treated in insertion when making, and is separated with gap between the sealing ring and sliding block, and fork knife is inserted into the gap during molding, And coordinate crush seal circle with sliding block, deformation expansion is allowed to, will treat the end part seal of bulging pipe fitting.
As preferred embodiment, the plug includes connecting rod and end cap, and the sliding block is connected to the one of connecting rod End, end cap are arranged on the other end of connecting rod, and the sealing ring is set on connecting rod, and is fitted with end cap, the fork knife Wedge mechanism is formed in inclined wedge shape, and with sliding block, fork knife lower part is equipped with crosses groove with what connecting rod matched.
As preferred embodiment, it is interference fitted between the fork knife and sliding block.
As preferred embodiment, the interference volume of the interference fit is 1.5mm.
As preferred embodiment, packing ring is also arranged with the connecting rod, the both sides of the packing ring are in molding It is bonded respectively with fork knife and sealing ring.
As preferred embodiment, the water injecting mechanism includes the water filling bar being connected on sliding block and is arranged on plug The water injection hole of end, the water filling bar are connected with water injection hole.
As preferred embodiment, positioned at the plug at the mold cavity both ends of lower mold assemblies center line angle with The angle of the center line at the mold cavity both ends of membrane module is consistent.
As preferred embodiment, the upper die component includes top plate and the upper mold for being arranged on top plate lower surface, under Membrane module includes bottom plate and is arranged on the lower die of plate upper surface, and the mold cavity of upper die component is arranged on the lower surface of upper mold, The mold cavity of lower mold assemblies is arranged on the upper surface of lower die, and upper mold is equipped with multiple upper die guide sleeve holes, and lower die is equipped with multiple Lower die guide pillar hole, the upper die guide sleeve hole and lower die guide pillar hole match.
As preferred embodiment, the lower die is equipped with multiple osculums, and the osculum leads to lower module The bottom of the mold cavity of part.
As preferred embodiment, the both ends of the mold cavity of the upper die component are equipped with square groove, the fork knife It is arranged in square groove.
As preferred embodiment, the sliding block is slidably connected by sliding block supporting plate with lower mold assemblies.
As preferred embodiment, the sealing ring uses polyurethane circle.
The operation principle of the utility model is:
First upper mold upper surface and top plate lower surface are fixed;Fork knife upper surface is fixed with top plate lower surface;By under lower die Surface, sliding block supporting plate etc. are fixed with plate upper surface;Top plate is lifted using hydraulic press, upper mold is suspended in directly over lower die, will Treat that bulging pipe fitting is placed in the mold cavity of lower die, then cylinder driving sliding block, sliding block drives the inside at plug insertion pipe fitting both ends, Hydraulic press drives top plate and upper mold to mold downwards, and guide post play the guiding role clamping process, fork knife insertion sliding block and sealing ring it Between gap, promote sealing ring expansion water shutoff, liquid is entered by water filling bar from plug treats the internal cavities of bulging pipe fitting, passes through Control fluid pressure makes pipe fitting outside wall surface be bonded mold cavity, completes bulging process.
Compared with prior art, the utility model has the advantages that:
(1) utility model can not only be used as bulging die but also can make preforming mould, can successively carry out preforming and bulging Two procedures, reduce the die cost of half.Mould laminating degree is high, and accuracy is high, and production efficiency is high.It is oriented to and is tied using guide post Structure, makes well-located between lower die and upper mold, accuracy height.
(2) fork knife and the sliding block is interference fitted when molding, and by interference volume selected as 1.5mm, makes fork knife under Fall process and push away sliding block to treat bulging pipe fitting end, and drive end cap to be transported to the direction for treating bulging pipe fitting end is left by connecting rod It is dynamic, and sealing ring (being packing ring in the case where setting packing ring) is due to being blocked and can not be moved by fork knife, so that sealing ring is subject to Extruding, makes sealing ring expand water shutoff, and the interference volume of 1.5mm is unlikely to cause the polyurethane circle service life too short because pressure is excessive.It can make The limited rise of intraluminal fluid pressure pressure, improves product patch mould precision.
(3) osculum can ensure to trickle down the timely automated discharge of liquid in mold cavity when worker takes out finished product, make Mould laminating degree is high, the simple operation of worker.
(4) it is located at the angle of center line and the mold cavity of lower mold assemblies of the plug at the mold cavity both ends of lower mold assemblies The angle of the center line at both ends is consistent, thus it is consistent with the angle of the axial line at final shaped article both ends, ensure product life The precision of production.
(5) by setting square groove, and fork knife is installed in square groove, fork knife can be avoided frequently to move generation loosening, ensured It is safe to use, and be conducive to improve the service life of mould.
Brief description of the drawings
Fig. 1 is the structure diagram of the reducing abnormity pipe part expanding die of the utility model;
Fig. 2 is the stopper structure schematic diagram of the reducing abnormity pipe part expanding die of the utility model;
Fig. 3 is the upper die structure schematic diagram of the reducing abnormity pipe part expanding die of the utility model;
Fig. 4 is the lower die structure schematic diagram of the reducing abnormity pipe part expanding die of the utility model.
In figure, 1 is top plate, and 2 be upper mold, and 201 be square groove, and 202 be upper die guide sleeve hole, and 3 be lower die, and 301 be osculum, 302 be lower die guide pillar hole, and 4 be bottom plate, and 5 be knife and fork, and 6 be sliding block, and 7 be sliding block supporting plate, and 8 be water filling bar, and 9 be plug, and 901 be company Bar, 902 be end cap, and 903 be packing ring, and 10 be sealing ring, and 11 be cylinder, and 12 be air cylinder fixed plate, and 13 be cylinder guidance plate, and 14 are Mold cavity.
Embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of reducing abnormity pipe part expanding die, as shown in figures 1-4, including bulging component and is oppositely arranged Upper die component and lower mold assemblies, upper die component and lower mold assemblies, which are equipped with, to be used to place the mold cavity 14 for treating bulging pipe fitting, bulging Component includes the fork knife 5 for being arranged on 14 both ends of mold cavity of upper die component, 14 both ends of mold cavity for being arranged on lower mold assemblies Plug mechanism and the water injecting mechanism that is arranged on plug mechanism, plug mechanism include sequentially connected cylinder 11, sliding block 6 and stifled First 9, cylinder 11 is fixed on lower mold assemblies, and sliding block 6 is slidably connected with lower mold assemblies, and sealing ring 10 is arranged with plug 9, is used for The end of bulging pipe fitting is treated in insertion at work, and the present embodiment selects polyurethane circle as sealing ring 10, sealing ring 10 and sliding block 6 Between be separated with gap, when molding, pitches knife 5 and is inserted into the gap, and coordinates crush seal circle 10 with sliding block 6, is allowed to deformation expansion, will Treat the end part seal of bulging pipe fitting.
Specifically:
Upper die component in the present embodiment includes top plate 1 and the upper mold 2 for being arranged on 1 lower surface of top plate, and lower mold assemblies include Bottom plate 4 and the lower die 3 for being arranged on 4 upper surface of bottom plate, the mold cavity 14 of upper die component are arranged on the lower surface of upper mold 2, lower die The mold cavity 14 of component is arranged on the upper surface of lower die 3,1 lower surface of top plate, upper die component mold cavity 14 upper surface, It is parallel to each other between the lower surface of the mold cavity 14 of lower mold assemblies and the upper surface of bottom plate 4, upper mold 2 is led equipped with multiple upper molds Sets of holes 202, lower die 3 are equipped with multiple lower die guide pillar holes 302, and upper die guide sleeve hole 202 and lower die guide pillar hole 302 match, such as Fig. 3 Shown in~4.Positioned at the angle of center line and the mold cavity of lower mold assemblies of the plug 9 at 14 both ends of mold cavity of lower mold assemblies The angle of the center line at 14 both ends is consistent.Water injecting mechanism includes the water filling bar 8 being connected on sliding block and is arranged on 9 end of plug Water injection hole, water filling bar 8 are connected with water injection hole.Lower die 3 is equipped with multiple osculums 301, and osculum 301 leads to lower mold assemblies The bottom of mold cavity 14.Cylinder 11 is fixed on bottom plate 4 by being installed vertically on the side of air cylinder fixed plate 12, and cylinder is led It is used to be oriented to the lever of cylinder 11 to plate 13, its bottom surface is fixed on bottom plate 4, and sliding block supporting plate 7 is fixed with bottom plate, sliding 6 bottom surface horizontal setting of block horizontal on sliding block supporting plate 7 can be slided on sliding block supporting plate 7.The mold cavity 14 of upper die component Both ends are equipped with square groove 201, and fork knife 5 is arranged in square groove 201.
Plug 9 in the present embodiment includes connecting rod 901 and end cap 902, as shown in Fig. 2, sliding block 6 is connected to connecting rod 901 One end, end cap 902 are arranged on the other end of connecting rod 901, and sealing ring 10 is set on connecting rod 901, and fit with end cap 902, It is in inclined wedge shape to pitch knife 5, and forms wedge mechanism with sliding block 6, and 5 lower part of fork knife is equipped with crosses groove with what connecting rod 901 matched.Pitch knife 5 It is interference fitted between sliding block 6, the interference volume of interference fit is 1.5mm.In order to avoid pitching knife 5 in clamping process to sealing ring 10 cause to wear, and are also arranged with packing ring 903 on connecting rod 901, the both sides of packing ring 903 in molding respectively with fork knife 5 and sealing ring 10 fittings.
During work, first 2 upper surface of upper mold and 1 lower surface of top plate are fixed;Fork 5 upper surface of knife is consolidated with 1 lower surface of top plate It is fixed;3 lower surface of lower die, sliding block supporting plate 7, cylinder guidance plate 13 and 4 upper surface of bottom plate are fixed;Top plate 1 is lifted using hydraulic press Rise, upper mold 2 is suspended in directly over lower die 3, will treat that bulging pipe fitting is placed in the mold cavity of lower die 3,14 and then the driving of cylinder 11 are slided Block 6, sliding block 6 drive the inside at the insertion pipe fitting of plug 9 both ends, and hydraulic press driving top plate 1 and upper mold 2 mold downwards, guide post pairing Mold process play the guiding role, and fork knife 5 is inserted into the gap between sliding block 6 and sealing ring 10, fork knife 5 and the interference in molding of sliding block 6 Coordinate, fork knife 5 is pushed away sliding block 6 in dropping process and treat bulging pipe fitting end, and by connecting rod 901 drive end cap 902 to from Open the direction movement for treating bulging pipe fitting end, and packing ring 903 is due to being blocked and can not be moved by fork knife 5 so that sealing ring 10 by To extruding, sealing ring 10 is set to expand water shutoff.Liquid enters the internal cavities for treating bulging pipe fitting by water filling bar 8 from plug 9, passes through Control fluid pressure makes pipe fitting outside wall surface be bonded mold cavity 14, completes bulging process.

Claims (10)

1. a kind of reducing abnormity pipe part expanding die, including the upper die component and lower mold assemblies being oppositely arranged, upper die component It is equipped with lower mold assemblies and is used to place the mold cavity (14) for treating bulging pipe fitting, it is characterised in that the mould further includes bulging group Part, the bulging component include being arranged on the fork knife (5) at mold cavity (14) both ends of upper die component, are arranged on lower mold assemblies Mold cavity (14) both ends plug mechanism and the water injecting mechanism that is arranged on plug mechanism, the plug mechanism include according to Cylinder (11), sliding block (6) and the plug (9) of secondary connection, the cylinder (11) are fixed on lower mold assemblies, and sliding block (6) is with Membrane module is slidably connected, and sealing ring (10) is arranged with plug (9), and the end of bulging pipe fitting, institute are treated for being inserted at work It is separated with gap between the sealing ring (10) and sliding block (6) stated, when molding pitches knife (5) and is inserted into the gap, and coordinates with sliding block (6) and squeeze Pressure seal ring (10), is allowed to deformation expansion, will treat the end part seal of bulging pipe fitting.
A kind of 2. reducing abnormity pipe part expanding die according to claim 1, it is characterised in that the plug (9) connecting rod (901) and end cap (902) are included, the sliding block (6) is connected to one end of connecting rod (901), and end cap (902) is set The other end in connecting rod (901), the sealing ring (10) are set on connecting rod (901), and are fitted with end cap (902), institute The fork knife (5) stated is in inclined wedge shape, and forms wedge mechanism with sliding block (6), and fork knife (5) lower part is equipped with to match with connecting rod (901) Cross groove.
A kind of 3. reducing abnormity pipe part expanding die according to claim 2, it is characterised in that the fork knife (5) it is interference fitted between sliding block (6).
4. a kind of reducing abnormity pipe part expanding die according to claim 3, it is characterised in that the interference is matched somebody with somebody The interference volume of conjunction is 1.5mm.
A kind of 5. reducing abnormity pipe part expanding die according to claim 4, it is characterised in that the connecting rod (901) be also arranged with packing ring (903) on, the both sides of the packing ring (903) in molding respectively with fork knife (5) and sealing ring (10) it is bonded.
A kind of 6. reducing abnormity pipe part expanding die according to claim 1, it is characterised in that the water injection machine Structure includes the water filling bar (8) being connected on sliding block and the water injection hole for being arranged on plug (9) end, the water filling bar (8) and note Water hole is connected.
7. a kind of reducing abnormity pipe part expanding die according to claim 1, it is characterised in that positioned at lower mold assemblies Mold cavity (14) both ends plug (9) center line angle and lower mold assemblies mold cavity (14) both ends center line Angle it is consistent.
A kind of 8. reducing abnormity pipe part expanding die according to claim 1, it is characterised in that the upper module Part includes top plate (1) and the upper mold (2) for being arranged on top plate (1) lower surface, and lower mold assemblies include bottom plate (4) and are arranged on bottom plate (4) lower die (3) of upper surface, the mold cavity (14) of upper die component are arranged on the lower surface of upper mold (2), the mould of lower mold assemblies Cavity (14) is arranged on the upper surface of lower die (3), and upper mold (2) is equipped with multiple upper die guide sleeve holes (202), and lower die (3) is equipped with Multiple lower die guide pillar holes (302), the upper die guide sleeve hole (202) and lower die guide pillar hole (302) match.
9. a kind of reducing abnormity pipe part expanding die according to claim 1 or 8, it is characterised in that under described Mould (3) is equipped with multiple osculums (301), and the osculum (301) leads to the bottom of the mold cavity (14) of lower mold assemblies.
A kind of 10. reducing abnormity pipe part expanding die according to claim 8, it is characterised in that the upper mold The both ends of the mold cavity (14) of component are equipped with square groove (201), and the fork knife (5) is arranged in square groove (201).
CN201720774095.1U 2017-06-29 2017-06-29 A kind of reducing abnormity pipe part expanding die Active CN207222670U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720774095.1U CN207222670U (en) 2017-06-29 2017-06-29 A kind of reducing abnormity pipe part expanding die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720774095.1U CN207222670U (en) 2017-06-29 2017-06-29 A kind of reducing abnormity pipe part expanding die

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Publication Number Publication Date
CN207222670U true CN207222670U (en) 2018-04-13

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110883228A (en) * 2019-12-02 2020-03-17 长春智乐机械制造有限公司 Internal high-pressure forming die
CN112024692A (en) * 2020-08-19 2020-12-04 哈尔滨工业大学 Ultra-low pressure liquid-filling forming system and method for special-shaped component

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110883228A (en) * 2019-12-02 2020-03-17 长春智乐机械制造有限公司 Internal high-pressure forming die
CN112024692A (en) * 2020-08-19 2020-12-04 哈尔滨工业大学 Ultra-low pressure liquid-filling forming system and method for special-shaped component
CN112024692B (en) * 2020-08-19 2021-04-09 哈尔滨工业大学 Ultra-low pressure liquid-filling forming system and method for special-shaped component

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