CN209613921U - Metal bi pipe compound molding device - Google Patents
Metal bi pipe compound molding device Download PDFInfo
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- CN209613921U CN209613921U CN201920391602.2U CN201920391602U CN209613921U CN 209613921 U CN209613921 U CN 209613921U CN 201920391602 U CN201920391602 U CN 201920391602U CN 209613921 U CN209613921 U CN 209613921U
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- liquid container
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- cylinder barrel
- piston rod
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Abstract
The utility model discloses a kind of metal bi pipe compound molding devices, include the upper table and lower table of press machine, and set liquid container and feed unit；It sets and lower mold is installed in liquid container, it is intermediate below upper table that upper mold is installed；Feed unit is mounted on the side opening for setting the two sides of liquid container；Lower table is respectively equipped with driving feed unit toward setting the sliding equipment moved horizontally in liquid container on two side positions for setting liquid container；Upper mold two sides, which are equipped with, is mounted on the angled-lift splits at upper table both ends, and the inclined-plane of angled-lift splits and piston rod cooperates to the angled-lift splits extrusion piston bar when upper table downlink of press machine and moves horizontally.The utility model can be realized the preform of metal bi pipe, and tubing preform can be probed into this to the affecting laws of metal bi pipe impact hydraulic expanding-forming.
Description
Technical field
The utility model relates to metal bi pipe forming technique fields more particularly to a kind of metal bi pipe to be combined into shape dress
It sets.
Background technique
Metal bi pipe combined shaping is to make metal inner and outer pipes that different degrees of elastic-plastic deformation occur by interior pressure, and outer
The forming technique that it inner tube elastic recovery amount that tubular elastic reply volume, which is greater than, inner and outer pipes is made to be closely linked.In the prior art, main
The forming of metal bi pipe is realized using hydraulic combined shaping mode is impacted, i.e., by hydraulic so that difference occurs for inner and outer pipes
Degree elastic-plastic deformation, then so that outer tube elastic recovery amount is greater than inner tube elastic recovery amount, kept inner and outer pipes tight by way of punching press
It is close to be combined together.Metal bi multiple tube is made of the metal pipe material of two kinds of different materials, because it have corrosion resistance and compared with
High bearing capacity and the advantages such as at low cost, are developed rapidly in pipe material field.Compared with traditional single metal pipe material,
Metal composite pipe has had both the overall characteristics such as the physics, chemistry, mechanics of combined material, therefore metal composite pipe has mono-layer tube not
The comprehensive performances such as intensity, rigidity, corrosion resistance, the heat exchange had both.In addition to this multiple tube is combined with metal material and optimization
Material property is configured, precious metal material is enable to save, reduces the cost of raw material.
Currently, realizing that metal hydraulic bulging mainly provides highly pressurised liquid, forming speed to tubing inside by dedicated pressure source
Spend slower, and the equipment of metal tube hydraulic expanding-forming is huger, higher cost, forming efficiency are low, to metal tube hydraulic expanding-forming technology
Popularization and application bring great inconvenience.
104785604 B of patent CN of applicant's earlier application proposes a kind of metal thin-wall bimetallic tube impact Hydraulic Expansion
Shape dress is set, including the mould bases being made of positioning die carrier with the lower mold being mounted in positioning die carrier being located on press machine lower die seat
Device, positioning die carrier include sliding equipment, lower mold holder and top mold holder；The sliding equipment includes slide, horizontal slider, level
Non-threaded section of guide post and screw rod, screw rod is pierced by except lower mold holder both ends, is driven and is cooperated with screw mandrel drive mechanism, top mold holder placement
On lower mold holder, at liquid storage container shape, lower mold is placed in the bottom of liquid storage container, and the horizontal guide post on horizontal slider passes through
The both ends of top mold holder and with metal thin-wall bimetallic tube axis coaxle to be processed, for sealing up the liquid of bimetallic tube inner tube there
Body.Metal thin-wall bimetallic tube is carried out using the bulging device and impacts hydraulic expanding-forming, and simple and easy to do, hydraulic expanding-forming is high-efficient, quality
There is reliable guarantee.But the device wants the pipe preformed pressure source then still obtained by outside in realization.
Utility model content
Against the above deficiency, the purpose of the utility model is to provide a kind of metal bi pipe compound molding devices.
In order to achieve the above objectives, the utility model adopts the following technical solution:
Metal bi pipe compound molding device includes the upper table and lower table of press machine, the lower table
Top surface among be fixed with and set liquid container, described set is equipped with lower mold in liquid container, intermediate peace below the upper table
Equipped with upper mold, the upper mold is located at right above the lower mold；The two sides for setting liquid container are offered to be installed into
To the side opening of unit, the feed unit includes cylinder barrel, piston rod and seal plug, and the cylinder barrel is movably arranged on described set
On the side opening of liquid container, the inner end of the cylinder barrel is located at the inside and outside end of liquid container of setting and sets outside liquid container positioned at described, the work
Rod portion is located in the cylinder barrel, and the outer end of the piston rod is inclined-plane, and it is close that the inner end of the piston rod is equipped with first
Seal, the seal plug are mounted on the inner end of the cylinder barrel, and the seal plug is equipped with the inside for being connected to the cylinder barrel
And the liquid injection hole of the outer end of the seal plug；The lower table is set respectively on two side positions for setting liquid container
There is the driving feed unit to set the sliding equipment moved horizontally in liquid container described in；The upper mold two sides are equipped with and are mounted on
The angled-lift splits at the upper table both ends, the angled-lift splits are located at the top of the piston rod and the inclined-plane phase with the piston rod
The angled-lift splits extruding piston rod when upper table downlink in order to press machine is cooperated to move horizontally.
Further, the sliding equipment includes horizontal slider, driving motor and screw rod, and the lower table is described
It sets and opens up the dovetail groove for being parallel to the cylinder barrel on two side positions of liquid container, the horizontal slider Matching installation is in the swallow
In stern notch, the top of the horizontal slider is fixedly connected with the cylinder barrel, and the driving motor is fixedly mounted on the lower work
On platform, one end of the screw rod is fixedly connected on the output shaft of the driving motor, and other end Matching installation is in the level
On the screw hole of slider bottom, the screw rod and the cylinder barrel are coaxially disposed.
Further, the face of the angled-lift splits and the piston rod phase separation is first to tilt again vertical structure.
Further, sleeve is also fixed on the side opening for setting liquid container, the sleeve is horizontally disposed, the cylinder barrel
It is coaxially set in the sleeve, the second sealing ring is equipped in the sleeve.
Further, the seal plug is pre-small post-large structure.
Further, linear guiding mechanism is equipped between the cylinder barrel and piston rod, the linear guiding mechanism makes institute
Axial linear motion can only be carried out by stating between cylinder barrel and piston rod.
Further, the linear guiding mechanism includes first sliding groove on the outer surface of the piston rod, sets
In the cylinder barrel inner surface and the second sliding slot opposite with the first sliding groove position and be set to the first sliding groove and the
Multiple spherical rolling bodies in two sliding slots.
Further, the bottom surface at the upper table both ends is equipped with longitudinal sliding slot, the top surface of the angled-lift splits be equipped with
The sliding block that the sliding slot matches, the angled-lift splits are fixedly mounted on the sliding slot by the sliding block.
Further, the side at the upper table both ends is equipped with graduated scale at the position for corresponding to the sliding slot.
Compared with prior art, the utility model has the beneficial effects that
1, the utility model can be realized the preform of metal bi pipe, so that the gap between bimetallic tube is reduced, energy
It is good to guarantee forming, and tubing preform can be probed into this to the affecting laws of metal bi pipe impact hydraulic expanding-forming；
2, the utility model has the advantages of simple structure and easy realization without introducing dedicated interior pressure source, and be able to maintain inner tube at
Compactness when shape, to realize good forming.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the longitudinal cross-section schematic diagram of feed unit；
Fig. 3 is the cooperation schematic diagram of feed unit and sleeve；
Fig. 4 is the implementation diagram of this preferred embodiment.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1 to Fig. 3 is please referred to, the utility model preferred embodiment provides a kind of metal bi pipe compound molding device.
With continued reference to Fig. 1, metal bi pipe compound molding device includes the upper table 4 and lower table 5 of press machine,
It is fixed among the top surface of lower table 5 and sets liquid container 1, set and lower mold 2 is installed in liquid container 1, in 4 lower section of upper table
Between upper mold 3 is installed, upper mold 3 is located at right above lower mold 2, and when 4 downlink of upper table of press machine drives under upper mold 3
Row is simultaneously molded with lower mold 2, to realize punching press.
Fig. 1 is please referred to, the two sides for setting liquid container 1 offer side opening to install feed unit.As depicted in figs. 1 and 2,
Feed unit includes cylinder barrel 6, piston rod 7 and seal plug 8.Cylinder barrel 6 is movably arranged on the side opening for setting liquid container 1, cylinder barrel 6
Inner end be located at set the inside and outside end of liquid container 1 be located at set outside liquid container 1.7 part of piston rod is located in cylinder barrel 6, outside piston rod 7
End is inclined-plane, and the inner end of piston rod 7 is equipped with the first sealing ring 9, the inner surface of the first sealing ring 9 and cylinder barrel 6 match with
Realize the sealing inside 7 inner end of piston rod and cylinder barrel 6 to avoid leakage.Seal plug 8 is mounted on the inner end of cylinder barrel 6,
Seal plug 8 is equipped with the liquid injection hole 10 of the inside of connection cylinder barrel 6 and the outer end of seal plug 8.Seal plug 8 and cylinder barrel 6
For detachable mounting means, detachable mounting means is preferably threadedly coupled, and specially the end of cylinder barrel 6 is equipped with external screw thread, close
Block head 8 is equipped with matched internal screw thread, the fixation of seal plug 8 Yu cylinder barrel 6 threadedly may be implemented, when not in use
Disassembly separation can be carried out to it.
For the ease of injection molding liquid, sets and be provided with inlet opening 24 and fluid hole 23 on 1 side of liquid container, 24 water of inlet opening
Flat height is higher than 23 level height of fluid hole, and Optimum Matching is equipped with stopple or is connected with valvular pipeline on inlet opening 24
(not shown), Optimum Matching is equipped with stopple or is connected with valvular pipeline (not shown) on fluid hole 23,
When needing fluid injection, the stopple or valve of inlet opening 23 are opened, forming liquid enters from inlet opening 24, at this time 23 envelope of fluid hole
It closes, it is that fluid injection is completed that liquid to be formed, which keeps the state for exceeding thin-wall tube,；When needing drain, open fluid hole 23 stopple or
Person's valve, forming liquid are gone out from fluid hole 23.One of the preferred lightweight machine oil of forming liquid, emulsion, saponified oil, water.
With continued reference to Fig. 1, lower table 5 is respectively equipped on two side positions for setting liquid container 1 drives feed unit is past to set
The sliding equipment moved horizontally in liquid container 1.Sliding equipment includes horizontal slider 12, driving motor 13 and screw rod 14, lower work
Make platform 5 (left and right sides for referring to the top surface of lower table) on two side positions for setting liquid container 1 and opens up the swallow for being parallel to cylinder barrel 6
Stern notch (not shown), 12 Matching installation of horizontal slider is in dovetail groove, the top of horizontal slider 12 and the fixed company of cylinder barrel 6
It connects, driving motor 13 is the motor that positive and negative rotation can be achieved, and is fixedly mounted on lower table 5, one end of screw rod 14 passes through connection
Axis device is fixedly connected on the output shaft of driving motor 13, and other end Matching installation is on the screw hole of 12 bottom of horizontal slider, silk
Bar 14 and cylinder barrel 6 are coaxially disposed.When implementation, the starting of driving motor 13 drives screw rod 14 to rotate, and forms lead screw pair knot with lead screw 14
The horizontal slider 12 of structure can be done along the longitudinal direction of dovetail groove close to setting the movement of liquid container 1, or is done far from the shifting for setting liquid container 1
Dynamic (depending on the specific setting of the steering of driving motor 13 and lead screw 14 and the screw hole of 12 bottom of horizontal slider).When level is sliding
Block 12 do close to set liquid container 1 it is mobile when, horizontal slider 12 drives cylinder barrel 6 to do and sets the movement of liquid container 1 close to (deep), from
And realize that driving seal plug 8 is mobile to the inner pipe end of metal bi pipe, to realize the sealing to the inner tube of metal bi pipe.
When horizontal slider 12 do far from set liquid container 1 it is mobile when, horizontal slider 12 drives cylinder barrel 6 to do far from setting the movement of liquid container 1,
To realize that driving seal plug 8 is separated with the inner pipe end of metal bi pipe.
3 two sides of upper mold are equipped with the angled-lift splits 15 for being mounted on 4 both ends of upper table, and angled-lift splits 15 are located at the upper of piston rod 7
The inclined-plane of Fang Bingyu piston rod 7 cooperates to the 15 extrusion piston bar 7 of angled-lift splits when 4 downlink of upper table of press machine and does water
Flat movement.Specifically, the downlink together of angled-lift splits 15 when 4 downlink of upper table, angled-lift splits 15 connect with the inclined-plane of piston rod 7 at this time
It touches and extrusion piston bar 7, piston rod 7, which is limited to cylinder barrel 6, can only move horizontally and towards moving inside cylinder barrel 6, to realize cylinder
Forming liquid inside cylinder 6 is expressed in the inner tube of metal bi pipe to provide pressure, to realize that inner tube is swollen by liquid injection hole 10
It is swollen to realize preform.In a preferred embodiment, the face of angled-lift splits 15 and 7 phase separation of piston rod is first to tilt again vertical knot
Structure, in the inclination stage, piston rod 7 is moved horizontally to complete fluid injection and realize preform, after preform, tiltedly by the extruding of angled-lift splits 15
Sliding block 15 enters the vertical stage, and piston rod 7 no longer moves horizontally.
Fig. 1 and Fig. 3 are please referred to, sets and is also fixed with sleeve 16 on the side opening of liquid container 1, sleeve 16 is horizontally disposed, cylinder barrel 6
It is coaxially set in sleeve 16, the second sealing ring 17 is equipped in sleeve 16.During angled-lift splits 15 push, piston rod is driven
7 move horizontally, but during driving, and also have a downward component, so that feed unit has one to be tilted towards
Under trend, so as to cause seal plug 8 and thin-wall tube end part aligning inaccuracy, can not be in the inner tube of metal bi pipe
Portion provides necessary interior pressure.Fixed sleeve 16 is set, and sleeve 16 is horizontally disposed and coaxial with cylinder barrel 6, therefore can be fine
Ground keeps 6 horizontal movement of cylinder barrel without tilting, and is conducive to being aligned for seal plug 8 and thin-walled tube end.Second sealing ring
17 is multiple, can both guarantee levelness, can also play good sealing function, avoid forming liquid from setting liquid container 1 as far as possible
Interior outflow.
Seal plug 8 is pre-small post-large structure, can preferably be applicable in different inner diameters.
Linear guiding mechanism is equipped between cylinder barrel 6 and piston rod 7, linear guiding mechanism makes between cylinder barrel 6 and piston rod 7
Axial linear motion can only be carried out, to guarantee piston rod 7 in the smooth movement of cylinder body 6.Specifically, linear guiding mechanism includes
There is first sliding groove 18 on the outer surface set on piston rod 7, set on the inner surface of cylinder barrel 6 and opposite with 18 position of first sliding groove
Second sliding slot 19 and multiple spherical rolling bodies 20 in first sliding groove 18 and second sliding slot 19.
The sliding slot that the bottom surface at 4 both ends of upper table is equipped with longitudinal (referring to 4 both ends extending direction of upper table) (does not show in figure
Out), the top surface of angled-lift splits 15 is equipped with the sliding block 21 to match with sliding slot, and angled-lift splits 15 are fixedly mounted on sliding slot by sliding block 21
On.Sliding block 21 is bolted on sliding slot, and the position of sliding block 21 can be adjusted before implementation, to realize to angled-lift splits 15
Position adjustment, so as to adjust amount of movement of the piston rod 7 in 15 downlink of angled-lift splits, by adjusting the amount of movement of piston rod 7
It may be implemented to adjust the amount to injection molding liquid inside thin-wall metal pipe to realize overpressure adjusting and preform amount.Upper work
Make the side at 4 both ends of platform and be equipped with graduated scale 22 at the position for corresponding to sliding slot, when implementation, cunning can be adjusted according to graduated scale 22
21 position of block, to fast implement the position adjustment to angled-lift splits 15.
Referring to figure 4., metal bi is carried out using above-mentioned metal bi pipe compound molding device in the utility model
The method of pipe combined shaping, including following key step:
1) metal bi pipe 25 is lain in a horizontal plane on lower mold 2；
2) to injection molding liquid in liquid container 1 is set, forming liquid holding is made to cover metal bi pipe 25, at this point, forming liquid is infused
Full 25 inside of metal bi pipe and 6 inside of cylinder barrel (forming liquid is entered inside cylinder barrel 6 by liquid injection hole 10)；
3) sliding equipment driving feed unit is moved horizontally in liquid container 1 and seal plug 8 is made to block metal pair toward setting
The end of the inner tube of layer pipe 25；Specifically, driving motor 13 drives lead screw 14 to rotate, then driven by the rotation of lead screw 14 horizontal
Sliding block 12 is mobile to 1 direction of liquid container is set, and does with moveable cylinder 6 and set the movement of liquid container 1 close to (deep), to realize driving
Seal plug 8 is mobile to the inner pipe end of metal bi pipe 25, to realize to the sealing of the inner tube of metal bi pipe 25, works as sealing
When plug 8 blocks the inner tube of metal bi pipe 25, driving motor 13 stops operating, and it is double that metal is blocked in the holding of seal plug 8 at this time
The state of the inner tube of layer pipe 25；
4) 4 downlink of upper table on press machine drives 15 downlink of angled-lift splits, and angled-lift splits 15 are acted on piston rod 7 and driven
The liquid injection hole for making piston rod 7 make forming liquid pass through seal plug 8 toward the mobile forming liquid squeezed inside cylinder barrel 6 inside cylinder barrel 6
10 enter inner tubes in, inner tube pressure increase and bulging and fill outer tube (refer to inner tube bulging filling inner and outer tubes between gap),
To complete the preform of inner tube；
5) upper table 4 on press machine continues traveling downwardly, and drives 3 downlink of upper mold and rushes to metal bi pipe 25
It hits, until molding completely, realizes the combined shaping of metal bi pipe 25.
After the completion of molding, 4 uplink of upper table of press machine drives 3 uplink of upper mold to reset, and the reversion of driving motor 13 drives
Horizontal slider 12 is to mobile far from the direction for setting liquid container 1, feed unit and seal plug 8 and metal bi pipe thereon at this time
25 end separation, that is, can be taken off metal bi pipe 25.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, the change that can be readily occurred in
Change or replace, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with described
Subject to scope of protection of the claims.
Claims (9)
1. metal bi pipe compound molding device includes the upper table (4) and lower table (5) of press machine, the lower work
Make to be fixed among the top surface of platform (5) and set liquid container (1), described set is equipped with lower mold (2) in liquid container (1), it is described on
Intermediate below workbench (4) to be equipped with upper mold (3), the upper mold (3) is located at right above the lower mold (2)；Its feature
It is:
The two sides for setting liquid container (1) offer the side opening to install feed unit, and the feed unit includes cylinder barrel
(6), piston rod (7) and seal plug (8), the cylinder barrel (6) be movably arranged on it is described set on the side opening of liquid container (1), it is described
The inner end of cylinder barrel (6) is located at liquid container (1) the inside and outside end of setting and sets liquid container (1) outside described in, piston rod (7) portion
For quartile in the cylinder barrel (6), the outer end of the piston rod (7) is inclined-plane, and the inner end of the piston rod (7) is equipped with first
Sealing ring (9), the seal plug (8) are mounted on the inner end of the cylinder barrel (6), and the seal plug (8) is equipped with connection
The liquid injection hole (10) of the outer end of the inside and seal plug (8) of the cylinder barrel (6)；
The lower table (5) is respectively equipped with the driving feed unit toward institute on two side positions for setting liquid container (1)
State the sliding equipment set and moved horizontally in liquid container (1)；
Upper mold (3) two sides are equipped with the angled-lift splits (15) for being mounted on the upper table (4) both ends, the angled-lift splits (15)
Positioned at the piston rod (7) top and cooperate to the upper table (4) in press machine with the inclined-plane of the piston rod (7)
The angled-lift splits (15) squeeze the piston rod (7) and move horizontally when downlink.
2. metal bi pipe compound molding device according to claim 1, it is characterised in that: the sliding equipment includes
Horizontal slider (12), driving motor (13) and screw rod (14), the lower table (5) is in the two sides position for setting liquid container (1)
The dovetail groove for opening up and being parallel to the cylinder barrel (6) is set, horizontal slider (12) Matching installation is in the dovetail groove, institute
The top for stating horizontal slider (12) is fixedly connected with the cylinder barrel (6), and the driving motor (13) is fixedly mounted on the lower work
Make on platform (5), one end of the screw rod (14) is fixedly connected on the output shaft of the driving motor (13), other end matching peace
On the screw hole of the horizontal slider (12) bottom, the screw rod (14) and the cylinder barrel (6) are coaxially disposed.
3. metal bi pipe compound molding device according to claim 1, it is characterised in that: the angled-lift splits (15) and institute
The face for stating piston rod (7) phase separation is first to tilt again vertical structure.
4. metal bi pipe compound molding device according to claim 1, it is characterised in that: the liquid container (1) set
It is also fixed on side opening sleeve (16), the sleeve (16) is horizontally disposed, and the cylinder barrel (6) is coaxially set in the sleeve
(16) in, the second sealing ring (17) are equipped in the sleeve (16).
5. metal bi pipe compound molding device according to claim 1, it is characterised in that: the seal plug (8) is
Pre-small post-large structure.
6. metal bi pipe compound molding device according to claim 1, it is characterised in that: the cylinder barrel (6) and piston
Linear guiding mechanism is equipped between bar (7), the linear guiding mechanism makes can only between the cylinder barrel (6) and piston rod (7)
Carry out axial linear motion.
7. metal bi pipe compound molding device according to claim 6, it is characterised in that: the linear guiding mechanism packet
Include first sliding groove (18) on the outer surface of the piston rod (7), be set to the cylinder barrel (6) inner surface and with it is described
The opposite second sliding slot (19) in first sliding groove (18) position and be set to the first sliding groove (18) and second sliding slot (19) in
Multiple spherical rolling bodies (20).
8. metal bi pipe compound molding device according to claim 1, it is characterised in that: the upper table (4) two
The bottom surface at end is equipped with longitudinal sliding slot, and the top surface of the angled-lift splits (15) is equipped with the sliding block (21) to match with the sliding slot, institute
Angled-lift splits (15) are stated to be fixedly mounted on the sliding slot by the sliding block (21).
9. metal bi pipe compound molding device according to claim 8, it is characterised in that: the upper table (4) two
The side at end is equipped with graduated scale (22) at the position for corresponding to the sliding slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920391602.2U CN209613921U (en) | 2019-03-26 | 2019-03-26 | Metal bi pipe compound molding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920391602.2U CN209613921U (en) | 2019-03-26 | 2019-03-26 | Metal bi pipe compound molding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209613921U true CN209613921U (en) | 2019-11-12 |
Family
ID=68457734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920391602.2U Withdrawn - After Issue CN209613921U (en) | 2019-03-26 | 2019-03-26 | Metal bi pipe compound molding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209613921U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109821961A (en) * | 2019-03-26 | 2019-05-31 | 桂林电子科技大学 | Metal bi pipe compound molding device and method |
| CN113182426A (en) * | 2021-05-13 | 2021-07-30 | 绍兴市荣迪机械有限公司 | Automatic alignment three-way pipe machining equipment |
-
2019
- 2019-03-26 CN CN201920391602.2U patent/CN209613921U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109821961A (en) * | 2019-03-26 | 2019-05-31 | 桂林电子科技大学 | Metal bi pipe compound molding device and method |
| CN109821961B (en) * | 2019-03-26 | 2023-09-22 | 桂林电子科技大学 | Metal double-layer pipe composite forming device and method |
| CN113182426A (en) * | 2021-05-13 | 2021-07-30 | 绍兴市荣迪机械有限公司 | Automatic alignment three-way pipe machining equipment |
| CN113182426B (en) * | 2021-05-13 | 2022-01-14 | 绍兴市荣迪机械有限公司 | Automatic alignment three-way pipe machining equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Guilin Sanduoyuan Machinery Co.,Ltd. Assignor: GUILIN University OF ELECTRONIC TECHNOLOGY Contract record no.: X2022450000378 Denomination of utility model: Compound forming device of metal double layer tube Granted publication date: 20191112 License type: Common License Record date: 20221219 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191112 Effective date of abandoning: 20230922 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20191112 Effective date of abandoning: 20230922 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |