CN113737385A - Ultrasonic vibration device for weaving three-dimensional fiber preform - Google Patents
Ultrasonic vibration device for weaving three-dimensional fiber preform Download PDFInfo
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- CN113737385A CN113737385A CN202111105191.4A CN202111105191A CN113737385A CN 113737385 A CN113737385 A CN 113737385A CN 202111105191 A CN202111105191 A CN 202111105191A CN 113737385 A CN113737385 A CN 113737385A
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- harness cord
- cover plate
- weaving
- ultrasonic
- vibration device
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- 239000000835 fiber Substances 0.000 title claims abstract description 56
- 238000009941 weaving Methods 0.000 title claims abstract description 36
- 239000000919 ceramic Substances 0.000 claims abstract description 18
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000003466 welding Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000011825 aerospace material Substances 0.000 abstract description 2
- 238000005452 bending Methods 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 238000003491 array Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- 239000002131 composite material Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000009940 knitting Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003733 fiber-reinforced composite Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C3/00—Braiding or lacing machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention discloses an ultrasonic vibration device for weaving a three-dimensional fiber preform. The device belongs to the field of aerospace material preparation, and comprises a harness cord ultrasonic vibrator, a shell, a machine tool cylinder connecting shaft, an ultrasonic power supply, a fiber silk thread and the like; the harness cord ultrasonic vibrator comprises a harness cord needle head, a middle harness cord front cover plate, a PZT-8 piezoelectric ceramic piece, a rear cover plate and an electrode plate; the machine tool cylinder connecting shaft is arranged at the other end of the shell, and the ultrasonic power supply provides electric energy for the harness cord ultrasonic vibrator to enable the harness cord needle head to generate high-frequency vibration; the fiber silk thread enters from the rear cover plate of the harness cord ultrasonic vibrator through the machine tool air cylinder connecting shaft and is output from the harness cord needle head port. The ultrasonic vibration device combined by the harness cord ultrasonic vibrator and the shell has a small structure and light weight, and is convenient for mounting a large number of arrays; the device can effectively reduce the axial force of the harness cord needle head during weaving, avoid the bending deformation of the harness cord needle head, improve the production efficiency and reduce the production cost.
Description
Technical Field
The invention belongs to the field of aerospace material preparation, relates to a fiber composite material fiber preform weaving device, and particularly relates to an ultrasonic vibration device for weaving a fiber three-dimensional preform.
Background
With the rapid development of the aerospace industry, light and high-temperature resistant composite materials taking carbon fibers and silicon carbide fibers as reinforcing phases have been gradually used for the production of key parts such as aircraft skins, engine blades and the like; at present, there are three main types of fiber preform structures for fiber composite materials: one, two, and three dimensions; compared with one-dimensional and two-dimensional fiber composite materials, the three-dimensional woven fiber composite material has higher strength and more excellent mechanical property; in the traditional three-dimensional weaving process, needling weaving is mainly carried out on the basis of a two-dimensional fiber prefabricated body structure; however, the disadvantages are: the two-dimensional fiber preform has certain hardness, so that a needle head in the weaving process is difficult to penetrate through the preform and is very easy to bend and deform, the weaving cannot be performed, the weaving efficiency is reduced, and the weaving cost is improved.
At present, a needle head of a traditional needle threading knitting machine is difficult to penetrate through a two-dimensional knitted fiber prefabricated body, and the needle head in the knitting process is easy to bend and deform so as to lose efficacy; meanwhile, the traditional weaving method needs to integrally heat and soften the fiber prefabricated body, the heating temperature is about 60 ℃, and when the parts are small, the fiber prefabricated body can be woven in a heating mode; however, when the parts are large (such as an airplane cabin), it is extremely difficult to achieve the overall heating or the local heating during the weaving process, and the traditional weaving method is not suitable for the three-dimensional weaving of the material. The existing ultrasonic vibration sewing device can only realize the surface knurling and material welding process, and can not realize the change from the two-dimensional weaving fiber preform to the three-dimensional weaving fiber preform; in order to solve the problem of weaving the three-dimensional fiber composite material, the ultrasonic vibration weaving mode is adopted to improve the weaving performance, reduce the stress of a needle head during weaving, prolong the service life of the needle head, reduce the production cost and improve the weaving efficiency.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an ultrasonic vibration device that solves the problem of weaving a three-dimensional fiber preform of a fiber-reinforced composite material. Mainly to the two-dimensional fibre prefabricated body structure that has prepared, pass the ultrasonic vibration device with the fibre silk thread, under the condition to two-dimensional fibre prefabricated body heating, utilize the vibration effect of the harness cord syringe needle on the ultrasonic vibration device, improve the temperature of this front end, reduce the friction between harness cord syringe needle and the fibre prefabricated body, reduce the power of penetrating the in-process, prevent harness cord syringe needle bending deformation, finally penetrate two-dimensional fibre prefabricated body with the fibre silk thread to form three-dimensional fibre prefabricated body.
The technical scheme of the invention is as follows: the invention relates to an ultrasonic vibration device for weaving a three-dimensional fiber preform, which comprises a hollow-structure-shaped harness cord ultrasonic vibrator (1),
the harness cord ultrasonic vibrator (1) comprises a harness cord needle (8), a middle through front cover plate (9), a PZT-8 piezoelectric ceramic piece (10), an electrode piece (11) and a rear cover plate (12),
the harness cord needle head (8) is fixedly arranged at the front end of the through front cover plate (9) through threads, and the PZT-8 piezoelectric ceramic piece (10) and the electrode piece (11) are sequentially sleeved on a stud at the other end of the through front cover plate (9);
the rear cover plate (12) is arranged at the other end of the electrode plate (11), and the PZT-8 piezoelectric ceramic plate (10) and the electrode plate (11) are pressed and fixed through threads.
Furthermore, a shell (2) matched with the through front cover plate (9) is arranged outside the PZT-8 piezoelectric ceramic piece (10), the electrode plate (11) and the rear cover plate (12), and a machine tool cylinder connecting shaft (3) is arranged at the other end of the shell (2).
Furthermore, a vent hole is formed in the side wall of one side of the shell (2), a compressed air quick connector (6) used for cooling the harness cord ultrasonic vibrator (1) is arranged in the vent hole, and a compressed air pipe (7) is arranged on the compressed air quick connector.
Furthermore, the electrode plate (11) comprises a positive electrode and a negative electrode, and a conducting wire is respectively arranged on the positive electrode and the negative electrode; the other ends of the two leads are provided with a quick plug (5);
the two wires are collected into a total wire and then connected to a quick plug (5), and an ultrasonic power supply (4) is arranged at the other end of the quick plug (5);
a through hole for a lead to penetrate is further formed in the side wall of the other side of the shell (2);
the ultrasonic power supply (4) is connected with the positive electrode and the negative electrode in the harness cord ultrasonic vibrator (1) in a mode of installing a quick plug (5).
Furthermore, the harness cord ultrasonic vibrator (1) and the shell (2) are installed in an interference fit mode and fixed in a laser welding mode.
Furthermore, a vibration reduction groove is further arranged on a flange of the center through front cover plate (9), and the central aperture of the center through front cover plate (9) is less than 2 mm.
Furthermore, a fiber silk thread (13) is arranged inside the harness cord ultrasonic vibrator (1) in a penetrating mode.
The invention has the beneficial effects that: the fiber composite material three-dimensional fiber preform weaving ultrasonic vibration device can improve the temperature of the needle point of the harness cord needle at the local temperature and soften the contact area of the needle point and the two-dimensional fiber preform in the vibration process, thereby reducing the stress of the harness cord needle in the threading process, avoiding the harness cord needle from deforming due to overlarge stress, improving the production efficiency and reducing the production cost; meanwhile, the friction coefficient between the wall of the harness cord needle head and the fiber hole can be reduced under the action of vibration, so that the punched hole does not bulge, and the weaving quality of the three-dimensional fiber preform is improved; the laser welding equipment process improves the rigidity of the whole device, and the work is more stable and reliable; the ventilation structure on the side wall of the shell can dissipate heat generated by the harness cord ultrasonic vibrator due to long-time work, so that the harness cord needle head works under stable amplitude for a long time; the ultrasonic vibration device effectively improves the efficiency and quality of the three-dimensional fiber prefabricated body, reduces the difficulty of the three-dimensional fiber prefabricated body, and achieves the purpose of producing large-batch and large-structure parts of the three-dimensional fiber prefabricated body.
Drawings
FIG. 1 is a schematic structural view of a fiber three-dimensional fiber preform braiding ultrasonic vibration device according to the present invention;
FIG. 2 is a schematic view of the assembly of the harness cord ultrasonic vibrator of the present invention;
FIG. 3 is a schematic view of the structure of the outer case of the present invention;
FIG. 4 is a structural sectional view of a through front cover plate in the present invention;
in the figure, 1 is a harness cord ultrasonic vibrator, 2 is a shell, 3 is a machine tool air cylinder connecting shaft, 4 is an ultrasonic power supply, 5 is a quick plug, 6 is a compressed air pipe quick connector, 7 is a compressed air pipe, 8 is a harness cord needle head, 9 is a center through front cover plate, 10 is a PZT-8 piezoelectric ceramic plate, 11 is an electrode plate, 12 is a rear cover plate, and 13 is a fiber silk thread.
Detailed Description
In order to more clearly illustrate the technical solution of the present invention, the following detailed description is made with reference to the accompanying drawings:
as shown in the figure; the ultrasonic vibration device for weaving the three-dimensional fiber preform comprises a harness cord ultrasonic vibrator 1 in a hollow structure shape; the harness cord ultrasonic vibrator 1 comprises a harness cord needle 8, a middle through front cover plate 9, a PZT-8 piezoelectric ceramic piece 10, an electrode plate 11 and a rear cover plate 12,
the harness cord needle 8 is fixedly arranged at the front end of the through front cover plate 9 through threads, and the PZT-8 piezoelectric ceramic plate 10 and the electrode plate 11 are sequentially sleeved on a stud at the other end of the through front cover plate 9;
the rear cover plate 12 is arranged at the other end of the electrode plate 11 and is connected with the stud; the PZT-8 piezoelectric ceramic piece 10 and the electrode plate 11 are pressed and fixed through threads;
the flange of the middle through front cover plate 9 is installed in the shell 2 through small interference fit, the positive and negative electrodes of the electrode plate 11 penetrate out of the through hole in the side wall of the shell 2 through a lead in a guiding manner, and the quick plug 5 is connected to the ultrasonic power supply 4.
Further, a shell 2 matched with the through front cover plate 9 is arranged outside the PZT-8 piezoelectric ceramic piece 10, the electrode plate 11 and the rear cover plate 12, and a machine tool cylinder connecting shaft 3 is arranged at the other end of the shell 2.
Furthermore, a vent hole is formed in the side wall of one side of the shell 2, a compressed air quick connector 6 for cooling the harness cord ultrasonic vibrator 1 is arranged in the vent hole, and a compressed air pipe 7 is arranged on the compressed air quick connector;
the harness cord ultrasonic vibrator 1 is installed on a cylinder of a machine tool through positioning through a compressed air quick connector 6, and the compressed air pipe quick connector 6 is symmetrically screwed on the outer wall of the shell 2 through threads; a compressed air pipe 7 is arranged on the compressed air pipe quick connector 6;
the function of the cooling device is to cool the harness cord ultrasonic vibrator 1 in a working state by utilizing compressed air.
Further, the electrode plate 1 comprises a positive electrode and a negative electrode, and a conducting wire is respectively arranged on the positive electrode and the negative electrode; the other ends of the two leads are provided with a quick plug 5;
the two wires are collected into a total wire and then connected to a quick plug 5, and an ultrasonic power supply 4 is arranged at the other end of the quick plug 5;
a through hole for a lead to penetrate is further formed in the side wall of the other side of the shell 2; a rubber ring is arranged in the through hole and used for preventing the wire from moving;
the ultrasonic power supply 4 is connected with the positive electrode and the negative electrode in the harness cord ultrasonic vibrator 1 in a mode of installing a quick plug 5;
the function of the ultrasonic vibrator is to provide electric energy for the harness cord ultrasonic vibrator 1.
Further, the harness cord ultrasonic vibrator 1 and the shell 2 are installed in an interference fit mode and fixed in a laser welding mode.
Furthermore, a vibration reduction groove is arranged on the flange of the center through front cover plate 9,
the function of which is to prevent the transmission of vibrations from the flange to the housing 2 and the cylinder on which the ultrasonic vibration device is fixed during operation;
the central aperture of the through front cover plate 9 is less than 2 mm.
Further, a fiber thread 13 is arranged inside the harness cord ultrasonic vibrator 1 in a penetrating mode;
firstly, the fiber thread 13 penetrates out of a center hole of the harness cord ultrasonic vibrator 1, then the quick connector 5 (female connector) of the harness cord ultrasonic vibrator 1 is connected with a plug of the ultrasonic power supply 4, the ultrasonic power supply 4 is turned on to compress air, and the device starts to work.
Further, for the convenience of laser welding, the material of the housing 2 is the same as that of the through front cover plate 9.
Specifically, the ultrasonic vibration device for weaving the fiber three-dimensional preform comprises a harness cord ultrasonic vibrator 1 (a harness cord needle 8, a center-through front cover plate 9, a PZT-8 piezoelectric ceramic piece 10, a rear cover plate 12, an electrode piece 11), a shell 2, a machine tool cylinder connecting shaft 3, an ultrasonic power supply 4, a quick plug 5, a compressed air pipe quick connector 6, a compressed air pipe 7, a fiber silk thread 13 and other equipment;
a flange of the harness cord ultrasonic vibrator 1 is pressed into a hole in the front end of the shell 2 in a small interference fit mode, a gap between the flange and the contact end face of the shell 2 is fixedly connected in a laser welding mode, and the welding depth is adjusted to be 1-1.5 mm by adjusting the power of laser; finely turning the laser welding seam by using a lathe, and observing whether the welding seam is uniform or not; wherein, the material of the shell 2 is the same as that of the through front cover plate 9.
The positive and negative wires of the harness cord ultrasonic vibrator 1 are led out from the side wall holes of the shell 2, the I-shaped rubber ring is plugged into the side wall holes to prevent the wires from moving, the ends of the wires are connected with the female seat of the quick plug 5, and the plug of the electric energy output line of the ultrasonic power supply 4 is connected with the female seat of the quick plug 5.
The compressed air pipe quick connector 6 is screwed on the thread hole on the side wall of the shell 2 through threads, and the compressed air pipe 7 is inserted into the compressed air pipe quick connector 6.
The shell 2 is fixedly arranged on a machine tool cylinder connecting shaft 3 by screws, and the fiber thread 13 is introduced from a through hole of the cylinder and penetrates out from a needle head of the harness cord needle 8.
Sequentially sleeving a PZT-8 piezoelectric ceramic piece 10 and an electrode plate 11 on a stud at the rear end of a through front cover plate 9, screwing a rear cover plate 12 on the stud of the through front cover plate 9 through threads, and fixedly pressing the PZT-8 piezoelectric ceramic piece 10 and the electrode plate 11; the harness cord needle head 8 is connected with the middle harness front cover plate 9 through a screw thread; the PZT-8 piezoelectric ceramic piece 10 and the electrode piece 11 are even pieces.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. An ultrasonic vibration device for weaving a fiber three-dimensional preform is characterized in that: the ultrasonic vibration device comprises a harness cord ultrasonic vibrator (1) in a hollow structure,
the harness cord ultrasonic vibrator (1) comprises a harness cord needle (8), a middle through front cover plate (9), a PZT-8 piezoelectric ceramic piece (10), an electrode piece (11) and a rear cover plate (12),
the harness cord needle head (8) is fixedly arranged at the front end of the through front cover plate (9) through threads, and the PZT-8 piezoelectric ceramic piece (10) and the electrode piece (11) are sequentially sleeved on a stud at the other end of the through front cover plate (9);
the rear cover plate (12) is arranged at the other end of the electrode plate (11), and the PZT-8 piezoelectric ceramic plate (10) and the electrode plate (11) are pressed and fixed through threads.
2. The ultrasonic vibration device for weaving the fiber three-dimensional preform according to claim 1, wherein:
and a shell (2) matched with the through front cover plate (9) is arranged outside the PZT-8 piezoelectric ceramic piece (10), the electrode plate (11) and the rear cover plate (12), and a machine tool cylinder connecting shaft (3) is arranged at the other end of the shell (2).
3. The ultrasonic vibration device for weaving the three-dimensional preform of the fiber according to claim 2, wherein:
the side wall of one side of the shell (2) is provided with a vent hole, a compressed air quick connector (6) used for cooling the harness cord ultrasonic vibrator (1) is arranged in the vent hole, and a compressed air pipe (7) is arranged on the compressed air quick connector.
4. An ultrasonic vibration device for weaving a three-dimensional preform of fibers according to claims 1 and 2, characterized in that: the electrode plate (11) comprises a positive electrode and a negative electrode, and a conducting wire is respectively arranged on the positive electrode and the negative electrode; the other ends of the two leads are provided with a quick plug (5);
the two wires are collected into a total wire and then connected to a quick plug (5), and an ultrasonic power supply (4) is arranged at the other end of the quick plug (5);
and a through hole for a lead to penetrate is further formed in the side wall of the other side of the shell (2).
5. The ultrasonic vibration device for weaving the three-dimensional preform of the fiber according to claim 2, wherein: the harness cord ultrasonic vibrator (1) and the shell (2) are installed in an interference fit mode and are fixed in a laser welding mode.
6. The ultrasonic vibration device for weaving the three-dimensional preform of the fiber according to claim 1, characterized in that: and a vibration reduction groove is further arranged on the flange of the center through front cover plate (9), and the central aperture of the center through front cover plate (9) is less than 2 mm.
7. The ultrasonic vibration device for weaving the three-dimensional preform of the fiber according to claim 1, characterized in that: and a fiber silk thread (13) is arranged in the harness cord ultrasonic vibrator (1) in a penetrating way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111105191.4A CN113737385A (en) | 2021-09-22 | 2021-09-22 | Ultrasonic vibration device for weaving three-dimensional fiber preform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111105191.4A CN113737385A (en) | 2021-09-22 | 2021-09-22 | Ultrasonic vibration device for weaving three-dimensional fiber preform |
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| Publication Number | Publication Date |
|---|---|
| CN113737385A true CN113737385A (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111105191.4A Pending CN113737385A (en) | 2021-09-22 | 2021-09-22 | Ultrasonic vibration device for weaving three-dimensional fiber preform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116296698A (en) * | 2023-05-19 | 2023-06-23 | 中国科学技术大学 | Cotton fiber shaping and splitting equipment |
-
2021
- 2021-09-22 CN CN202111105191.4A patent/CN113737385A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116296698A (en) * | 2023-05-19 | 2023-06-23 | 中国科学技术大学 | Cotton fiber shaping and splitting equipment |
| CN116296698B (en) * | 2023-05-19 | 2023-10-20 | 中国科学技术大学 | Cotton fiber shaping and splitting equipment |
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