CN208343495U - A kind of composite material tube internal expanding method molding die - Google Patents
A kind of composite material tube internal expanding method molding die Download PDFInfo
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- CN208343495U CN208343495U CN201820968644.3U CN201820968644U CN208343495U CN 208343495 U CN208343495 U CN 208343495U CN 201820968644 U CN201820968644 U CN 201820968644U CN 208343495 U CN208343495 U CN 208343495U
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- core die
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Abstract
A kind of composite material tube internal expanding method molding die, belongs to aviation composite forming field.In the bellmouth of the taper connection boss matching insertion metal core die two of metal core die one, metal core die one is fixedly connected by insertion retaining groove one with the block key in retaining groove two with metal core die two, one other end of metal core die is equipped with aeration aperture, and the side wall of metal core die one and metal core die two is equipped with several ventholes；The lower mold body and type of upper die body is intracavitary is sequentially arranged with metal core die and silica gel air bag from the inside to the outside, silica gel air bag lateral surface wraps up the composite layer for making composite material tube, the both ends of silica gel air bag are tightened with clip respectively, and the metal core die other end is removably connected with end cap；Two lateral edges that the upper surface of lower mold body is located at type chamber are axially respectively equipped with excessive glue groove and seal groove, are equipped with several ventilation holes, lower mold body and upper die body in the two side walls of lower mold body and upper die body and are connected by several bolt fastenings.The utility model is used for the molding of composite material tube.
Description
Technical field
The utility model relates to a kind of composite material pipe shaping moulds, belong to aviation composite forming field.
Background technique
Carbon fibre composite, due to its specific strength, specific modulus is big, light-weight, corrosion-resistant, antifatigue, and designability is strong
The features such as, it has been more and more widely used aboard.The application site of composite material aboard, by non-bearing part and
Secondary bearing member gradually develops to primary load bearing component, and develops to enlargement, complication, integration direction.Advanced composite material
Dosage has become the important indicator for embodying aircraft advance.
Composite material element generally use vacuum bag method molding, composite material tube molding, due to outer surface roughness require compared with
Height, vacuum bag method straight forming can not meet outer surface roughness requirement, so want to seek other forming methods.
Summary of the invention
The purpose of the utility model is to provide a kind of composite material tube internal expanding method molding dies, to solve using above-mentioned existing
Technology can not can not prepare the problem of outer surface precision demanding composite material tube.
The purpose of this utility model is achieved through the following technical solutions:
A kind of composite material tube internal expanding method molding die, composition include lower mold body, upper die body, silica gel air bag, metal core
Mould, end cap, block key and two clips；The metal core die shape is round tube shape, and the metal core die includes two sections, respectively
It is metal core die one and metal core die two；
One end of the metal core die one has taper connection boss, and one end edge of the metal core die two is axially arranged with cone
Shape hole, along being axially arranged with one section of retaining groove one, one end edge described in metal core die two on the taper connection plateau sidewall of metal core die one
It is axially arranged with one section of retaining groove two, the retaining groove one is identical as the groove width of retaining groove two, the taper connection boss matching of metal core die one
It is inserted into the bellmouth of metal core die two, metal core die one and metal core die two pass through the block key in insertion retaining groove one and retaining groove two
It is fixedly connected, one other end of metal core die is equipped with aeration aperture, and the side wall of metal core die one and metal core die two is equipped with several logical
Stomata；The lower mold body and type of upper die body is intracavitary is sequentially arranged with metal core die and silica gel air bag from the inside to the outside, metal core die
Both ends are placed in the outside of lower mold body and upper die body, and the silica gel air bag lateral surface wraps up the composite wood for making composite material tube
The both ends of the bed of material, silica gel air bag are tightened with clip respectively, and the metal core die other end is removably connected with end cap；The upper end of lower mold body
Two lateral edges that face is located at type chamber are axially respectively equipped with excessive glue groove and seal groove, the excessive glue groove be arranged in the type chamber of lower mold body with
Between seal groove, several ventilation holes are equipped in the two side walls of lower mold body and upper die body, lower mold body and upper die body pass through several
Bolt fastening connection.
The beneficial effect of the utility model compared with the existing technology is:
1, the utility model is transferred the pressure on composite plys using silica gel air bag, and then is compacted composite material paving
Layer solves the problems, such as that the demanding composite material tube molding of outer surface precision is difficult.
2, using silica gel air bag, other than transmitting pressure, the stream of limitation composite plys in the curing process is also acted as
It is dynamic, so that the wall thickness of composite material tube tends to uniformity.
3, the utility model solves the problems, such as that draw ratio is difficult to form up to the big L/D ratio composite material tube of 900:1.
4, the composite material tube prepared using the molding die of the utility model, material includes but is not limited to carbon fiber
Composite material, glass fiber compound material.
5, metal core die, material are not only Q235 steel pipe, also include other steel pipes, e.g., galvanized pipe, seamless steel pipe
Deng.
6, the utility model structure is simple, is easy installation, made composite material tube outer diameter or radius precision reach
To ± 0.5mm, wall thickness accuracy is the 5% of wall thickness.
Detailed description of the invention
Fig. 1 is that a kind of overall structure of composite material tube internal expanding method molding die of the utility model splits shaft side figure；
Fig. 2 is partial enlarged view at the A of Fig. 1；
Fig. 3 is a kind of integrally-built cross-sectional cut-away of composite material tube internal expanding method molding die of the utility model
Figure；
Fig. 4 is partial enlarged view at the B of Fig. 1；
Fig. 5 is partial enlarged view at the C of Fig. 2.
Each parts title and label are as follows in above-mentioned figure:
Lower mold body 1, upper die body 2, silica gel air bag 3, metal core die 4, clip 5, end cap 6, metal core die 1, metal core die
28, retaining groove 1, retaining groove 2 10, block key 11, venthole 12, excessive glue groove 13, seal groove 14, ventilation hole 15, taper connection boss
16, reinforcing rib 17, composite material tube 18, hoisting ring 19.
Specific embodiment
Specific embodiment 1: as Figure 1-Figure 5, present embodiment discloses a kind of composite material tube internal expanding method molding
Mold, composition include lower mold body 1, upper die body 2, silica gel air bag 3, metal core die 4, end cap 6, block key 11 and two clips 5；
4 shape of metal core die is round tube shape, and it is metal core die 1 and metal core die respectively that the metal core die 4, which includes two sections,
28；
One end of the metal core die 1 has taper connection boss 16, and one end of the metal core die 28 is set along axial direction
There is bellmouth, edge is axially arranged with one section of retaining groove 1,28 institute of metal core die on 16 side wall of taper connection boss of metal core die 1
One end is stated along one section of retaining groove 2 10 is axially arranged with, the retaining groove 1 is identical as the groove width of retaining groove 2 10, the cone of metal core die 1
Shape connects in the bellmouth of the matching insertion metal core die 28 of boss 16, and metal core die 1 and metal core die 28 pass through insertion gear
Slot 1 is fixedly connected with the block key 11 in retaining groove 2 10, and one 7 other end of metal core die is equipped with aeration aperture, metal core die 1 and gold
The side wall for belonging to core model 28 is equipped with several ventholes 12；The lower mold body 1 and type of upper die body 2 is intracavitary successively fills from the inside to the outside
There are metal core die 4 and silica gel air bag 3, the both ends of metal core die 4 are placed in the outside of lower mold body 1 and upper die body 2, the silica gel air bag
3 lateral surfaces wrap up the composite layer for making composite material tube 18, and the both ends of silica gel air bag 3 are tightened with clip 5 respectively, gold
Belong to 4 other end of core model (passing through screw thread) and is removably connected with end cap 6；Two lateral edges that the upper surface of lower mold body 1 is located at type chamber are axial
It is respectively equipped with excessive glue groove 13 and seal groove 14, the excessive glue groove 13 is arranged between the type chamber of lower mold body 1 and seal groove 14, under
Several ventilation holes 15 are equipped in the two side walls of die body 1 and upper die body 2, lower mold body 1 and upper die body 2 pass through several bolt fastenings
Connection.
Lateral wall and bottom, the lateral wall of the upper die body 2 and top of the lower mold body 1 are equipped with reinforcing rib
17。
The block key 11 is cylindrical surface connecting key.
Hoisting ring 19 is equipped on lower mold body 1 and upper die body 2.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation be not intended to limit the utility model although the utility model has been disclosed with preferred embodiment as above, it is any ripe
Professional and technical personnel is known, is not being departed within the scope of technical solutions of the utility model, when in the technology using the disclosure above
Hold the equivalent embodiment for being modified or being modified to equivalent variations, but all without departing from technical solutions of the utility model
Hold, according to the technical essence of the utility model, within the spirit and principles of the present invention, to the above embodiments
What simple modifications, equivalent substitutions and improvements etc., within the protection scope for still falling within technical solutions of the utility model.
Claims (2)
1. a kind of composite material tube internal expanding method molding die, it is characterised in that: its form include lower mold body (1), upper die body (2),
Silica gel air bag (3), metal core die (4), end cap (6), block key (11) and two clips (5)；Metal core die (4) shape is
Round tube shape, the metal core die (4) include two sections, are metal core die one (7) and metal core die two (8) respectively；
One end of the metal core die one (7) has taper connection boss (16), and one end of the metal core die two (8) is along axial direction
Equipped with bellmouth, edge is axially arranged with one section of retaining groove one (9), metal on taper connection boss (16) side wall of metal core die one (7)
Core model two (8) one end edge is axially arranged with one section of retaining groove two (10), the groove width phase of the retaining groove one (9) and retaining groove two (10)
Together, in the bellmouth of taper connection boss (16) matching insertion metal core die two (8) of metal core die one (7), metal core die one
(7) it is fixedly connected by insertion retaining groove one (9) with the block key (11) in retaining groove two (10) with metal core die two (8), metal core die
One (7) other end is equipped with aeration aperture, and the side wall of metal core die one (7) and metal core die two (8) is equipped with several ventholes (12)；
The type of the lower mold body (1) and upper die body (2) is intracavitary to be sequentially arranged with metal core die (4) and silica gel air bag (3), metal from the inside to the outside
The both ends of core model (4) are placed in the outside of lower mold body (1) and upper die body (2), and silica gel air bag (3) the lateral surface package is for making
The composite layer of composite material tube (18), the both ends of silica gel air bag (3) are tightened with clip (5) respectively, and metal core die (4) is another
End is removably connected with end cap (6)；Two lateral edges that the upper surface of lower mold body (1) is located at type chamber are axially respectively equipped with excessive glue groove (13)
With seal groove (14), the excessive glue groove (13) is arranged between the type chamber and seal groove (14) of lower mold body (1), lower mold body (1)
It is equipped with several ventilation holes (15) in the two side walls of upper die body (2), lower mold body (1) and upper die body (2) pass through several bolts
It is fastenedly connected.
2. a kind of composite material tube internal expanding method molding die according to claim 1, it is characterised in that: the lower mold body
(1) lateral wall and bottom, the lateral wall of the upper die body (2) and top is equipped with reinforcing rib (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820968644.3U CN208343495U (en) | 2018-06-22 | 2018-06-22 | A kind of composite material tube internal expanding method molding die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820968644.3U CN208343495U (en) | 2018-06-22 | 2018-06-22 | A kind of composite material tube internal expanding method molding die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208343495U true CN208343495U (en) | 2019-01-08 |
Family
ID=64880784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820968644.3U Active CN208343495U (en) | 2018-06-22 | 2018-06-22 | A kind of composite material tube internal expanding method molding die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208343495U (en) |
-
2018
- 2018-06-22 CN CN201820968644.3U patent/CN208343495U/en active Active
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