CN114261106A - Forming die and method for battery shell of carbon fiber unmanned aerial vehicle - Google Patents
Forming die and method for battery shell of carbon fiber unmanned aerial vehicle Download PDFInfo
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Abstract
The invention discloses a forming die of a carbon fiber unmanned aerial vehicle battery case, which consists of an upper die (1) and a lower die (2), wherein the upper die (1) is connected with the lower die (2) through a bolt, a sealing ring is arranged between the upper die (1) and the lower die (2), a cavity formed by the upper die (1) and the lower die (2) is consistent with the shape and the size of the carbon fiber unmanned aerial vehicle battery case, and the lower die (2) comprises: the die comprises a rear die stop block (201), a left die stop block (202), a right die stop block (203), a lower die main body (204), a lower die bottom plate (205) and a lower die stripping insert (210), wherein the lower die main body (204) is welded on the lower die bottom plate (205); the rear die stop block (201), the left die stop block (202) and the right die stop block (203) are respectively fixed on the lower die main body (204) through a rear die stop block plug screw, a left die stop block plug screw and a right die stop block plug screw.
Description
Technical Field
The invention belongs to the field of carbon fiber composite material manufacturing, and particularly relates to a forming die for a battery shell of a carbon fiber unmanned aerial vehicle.
Background
The carbon fiber composite material has the advantages of light structure weight, high specific strength, high specific modulus, corrosion resistance, fatigue resistance, good dimensional stability, strong designability and the like; meanwhile, the co-curing and integral forming process method can greatly reduce the number of parts and the number of fasteners, thereby reducing the structural weight of the parts and reducing the production cost of the parts. Therefore, the unmanned aerial vehicle battery case starts to be manufactured using a carbon fiber composite material.
Unmanned aerial vehicles have been widely used in the industries of city management, agriculture, geology, meteorology, electricity, emergency and disaster relief, video shooting, and the like. The length of unmanned aerial vehicle battery duration is one of the important index of evaluating an unmanned aerial vehicle performance good or bad, and among the prior art, unmanned aerial vehicle's battery case generally uses plastics to mould plastics or mould pressing to make, and it is not the optimum choice in the aspect of the lightweight under the condition that satisfies the operation requirement.
The wall thickness of the battery case of the carbon fiber unmanned aerial vehicle is thin, about 0.6mm, and the uniformity of the wall thickness needs to be ensured in the forming process. Simultaneously, because there is the fitting relation in battery case bottom and unmanned aerial vehicle fuselage, so require that the assembly department be 90 jiaos, the product can not design the draft angle promptly, and this has brought the degree of difficulty for the product drawing of patterns.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention discloses a forming die of a carbon fiber unmanned aerial vehicle battery case, which consists of an upper die (1) and a lower die (2), wherein the upper die (1) is connected with the lower die (2) through a bolt, a sealing ring is arranged between the upper die (1) and the lower die (2), a cavity formed by the upper die (1) and the lower die (2) is consistent with the shape and the size of the carbon fiber unmanned aerial vehicle battery case, and the lower die (2) comprises: the die comprises a rear die stop block (201), a left die stop block (202), a right die stop block (203), a lower die main body (204), a lower die bottom plate (205) and a lower die stripping insert (210), wherein the lower die main body (204) is welded on the lower die bottom plate (205); the rear die stop block (201), the left die stop block (202) and the right die stop block (203) are respectively fixed on the lower die main body (204) through a rear die stop block plug screw, a left die stop block plug screw and a right die stop block plug screw; the lower die stripping insert (210) is positioned through a positioning hole with a 5-10-degree draft angle on the lower die base plate (205), is fixed on the lower die base plate (205) through a stripping insert stripping threaded hole (211), a lower die stripping insert sealing ring (212) is arranged between the lower die stripping insert (210) and the lower die base plate (205), and the lower die stripping insert (210) is cuboid.
Furthermore, sealing rings are arranged at the joints of the rear die stop block (201), the left die stop block (202), the right die stop block (203) and the lower die main body (204).
And the upper die (1), the left die stop block (202), the right die stop block (203) and the lower die main body (204) are all provided with a prying die opening.
A forming method of a carbon fiber unmanned aerial vehicle battery shell comprises the following steps:
step 1: combining a lower die (2), firstly, placing a lower die demoulding insert sealing ring (212) in a sealing ring groove (2) of a lower die main body (204), and placing a lower die demoulding insert (210) on the lower die demoulding insert sealing ring (212); secondly, mounting a rear die stop block (201), and fixing the rear die stop block (201) on a lower die main body (204) through a die stop block plug screw; thirdly, mounting a right die stop block (203), and fixing the right die stop block (203) on the lower die main body (204) by using a right die stop block plug screw; fourthly, a left die stop block (202) is installed, and a left die stop block (202) is fixed on the lower die main body (204) by using a left die stop block plug screw
Step 2: die assembly after lower mould tablet is spread and is pasted, is pasted to last mould tablet is spread, specifically is: the upper die (1) is positioned through a quadrangular frustum on the lower die main body (204), is connected with the lower die main body (204) through an inner hexagonal bolt (209), and is compacted after die assembly;
and step 3: manufacturing a vacuum bag, namely firstly manufacturing an inner bag: the inner bag is made of a nylon plastic film with the curved surface of the inner cavity of the product enlarged by 1.2-2 times; secondly, manufacturing an outer bag, sequentially placing an isolation film and a breathable felt outside a mold, and fixing a vacuum bag film on a lower mold bottom plate (205) by using a sealing rubber strip; thirdly, connecting the inner bag with the outer bag by using a sealing rubber strip;
and 4, step 4: and (3) autoclave molding, wherein the technological parameters are as follows: time: 100-120 minutes; temperature: 120-130 ℃; pressure: 0.2 to 0.3 MPa; vacuum degree: not less than 0.08 MPa; the heating rate is as follows: 1-1.5 ℃/min; cooling rate: 2-3 ℃/min; releasing pressure and discharging the die from the tank after the temperature of the die is lower than 60 ℃;
and 5: demoulding, namely, firstly disassembling the upper die (1); secondly, disassembling a rear die block (201), a left die block (202) and a right die block (203); thirdly, the lower die demoulding insert (210) and a product are removed along the demoulding direction; and fourthly, detaching the lower die stripping insert through the lower die stripping insert stripping threaded hole (211) by using a pin puller.
In the step 2, when the lower die material sheet is paved, a first layer of material sheet is paved on the combined lower die according to paving marking lines and corresponding angle coordinates, and when the material sheet is paved, a pressing plate is used for expelling bubbles and avoiding bridging of the material sheet; after the first layer is paved, a vacuum bag is manufactured and pre-compacted, after pre-compaction, second to fourth layers of material sheets are paved in sequence, and then the vacuum bag is manufactured and pre-compacted; the lower die material sheet is reserved with a lap edge with the width of 10mm for bonding with the upper die paving material sheet.
The manufactured battery case not only has light weight and stable size, but also has smooth appearance after being formed and can be directly used for subsequent paint spraying. In order to reduce the weight of the unmanned aerial vehicle battery shell, a carbon fiber battery shell forming method is provided. The light weight effect is obvious. The battery case manufactured by the method has the wall thickness of about 0.6mm, and the weight of the battery case is reduced. The assembly time is greatly shortened. Since the battery case can be formed at one time by the forming method, the assembling time can be reduced. And (4) size consistency. The battery case manufactured by the method has uniform wall thickness and stable size.
Drawings
Fig. 1 is a schematic view of a forming die of a battery case of a carbon fiber unmanned aerial vehicle according to the invention;
fig. 2 is a sectional view of a forming die of the battery case of the carbon fiber unmanned aerial vehicle of the invention;
fig. 3 is a left side view of a forming die of the carbon fiber unmanned aerial vehicle battery shell.
Wherein: 1-upper mould; 2-lower mould; 201-rear mold stops; 202-left mold stop; 203-right die stop; 204-lower die main body; 205-lower die base plate; 206-left mold stop seal ring; 207-screwing the upper plug; 210-a lower die stripping insert; 211-demolding insert demolding threaded holes; 212-lower mold release insert sealing ring; 215-lower die body prying die orifice.
Detailed Description
Example 1
As shown in fig. 1 and fig. 2, a forming die of carbon fiber unmanned aerial vehicle battery case comprises last mould (1) and lower mould (2), goes up mould (1) and lower mould (2) and passes through bolted connection, goes up and is equipped with the sealing washer between mould (1) and lower mould (2), goes up the shape and the size unanimity of the cavity and carbon fiber unmanned aerial vehicle battery case that mould (1) and lower mould (2) constitute, lower mould (2) contain: the die comprises a rear die stop block (201), a left die stop block (202), a right die stop block (203), a lower die main body (204), a lower die bottom plate (205) and a lower die stripping insert (210), wherein the lower die main body (204) is welded on the lower die bottom plate (205); the rear die stop block (201), the left die stop block (202) and the right die stop block (203) are respectively fixed on the lower die main body (204) through a rear die stop block plug screw, a left die stop block plug screw and a right die stop block plug screw; the lower die stripping insert (210) is positioned through a positioning hole with a 5-10-degree draft angle on the lower die base plate (205), is fixed on the lower die base plate (205) through a stripping insert stripping threaded hole (211), a lower die stripping insert sealing ring (212) is arranged between the lower die stripping insert (210) and the lower die base plate (205), and the lower die stripping insert (210) is cuboid.
Furthermore, sealing rings are arranged at the joints of the rear die stop block (201), the left die stop block (202), the right die stop block (203) and the lower die main body (204).
All be equipped with on last mould (1), left mould dog (202), right mould dog (203) and lower mould main part (204) and prize the die orifice, be equipped with lower mould main part sled die orifice (215) for example in lower mould main part (204) bottom.
Example 2
A forming method of a carbon fiber unmanned aerial vehicle battery shell comprises the following steps:
step 1: combining a lower die (2), firstly, placing a lower die demoulding insert sealing ring (212) in a sealing ring groove (2) of a lower die main body (204), and placing a lower die demoulding insert (210) on the lower die demoulding insert sealing ring (212); secondly, mounting a rear die stop block (201), and fixing the rear die stop block (201) on a lower die main body (204) through a die stop block plug screw; thirdly, mounting a right die stop block (203), and fixing the right die stop block (203) on the lower die main body (204) by using a right die stop block plug screw; fourthly, a left die stop block (202) is installed, and a left die stop block (202) is fixed on the lower die main body (204) by using a left die stop block plug screw
Step 2: die assembly after lower mould tablet is spread and is pasted, is pasted to last mould tablet is spread, specifically is: the upper die (1) is positioned through a quadrangular frustum on the lower die main body (204), is connected with the lower die main body (204) through an inner hexagonal bolt (209), and is compacted after die assembly;
and step 3: manufacturing a vacuum bag, namely firstly manufacturing an inner bag: the inner bag is made of a nylon plastic film with the curved surface of the inner cavity of the product enlarged by 1.2-2 times; secondly, manufacturing an outer bag, sequentially placing an isolation film and a breathable felt outside a mold, and fixing a vacuum bag film on a lower mold bottom plate (205) by using a sealing rubber strip; thirdly, connecting the inner bag with the outer bag by using a sealing rubber strip;
and 4, step 4: and (3) autoclave molding, wherein the technological parameters are as follows: time: 100-120 minutes; temperature: 120-130 ℃; pressure: 0.2 to 0.3 MPa; vacuum degree: not less than 0.08 MPa; the heating rate is as follows: 1-1.5 ℃/min; cooling rate: 2-3 ℃/min; releasing pressure and discharging the die from the tank after the temperature of the die is lower than 60 ℃;
and 5: demoulding, namely, firstly, disassembling the upper mould (1), disassembling the hexagon socket head cap screw 2 and the upper plug screw (207) by using a spanner, and disassembling the upper mould (1) after loosening the upper mould opening by using a crowbar through prying the mould opening; secondly, disassembling a rear die block (201), a left die block (202) and a right die block (203); thirdly, the lower die demoulding insert (210) and a product are removed along the demoulding direction; and fourthly, detaching the lower die stripping insert through the lower die stripping insert stripping threaded hole (211) by using a pin puller.
In the step 2, when the lower die material sheet is paved, a first layer of material sheet is paved on the combined lower die according to paving marking lines and corresponding angle coordinates, and when the material sheet is paved, a pressing plate is used for expelling bubbles and avoiding bridging of the material sheet; after the first layer is paved, a vacuum bag is manufactured and pre-compacted, after pre-compaction, second to fourth layers of material sheets are paved in sequence, and then the vacuum bag is manufactured and pre-compacted; the lower die material sheet is reserved with a lap edge with the width of 10mm for bonding with the upper die paving material sheet.
Claims (6)
1. The utility model provides a forming die of carbon fiber unmanned aerial vehicle battery case comprises last mould (1) and lower mould (2), goes up mould (1) and lower mould (2) and passes through bolted connection, goes up and is equipped with the sealing washer between mould (1) and lower mould (2), goes up the shape and the size unanimity of cavity and carbon fiber unmanned aerial vehicle battery case that mould (1) and lower mould (2) constitute, its characterized in that lower mould (2) contain: the die comprises a rear die stop block (201), a left die stop block (202), a right die stop block (203), a lower die main body (204), a lower die bottom plate (205) and a lower die stripping insert (210), wherein the lower die main body (204) is welded on the lower die bottom plate (205); the rear die stop block (201), the left die stop block (202) and the right die stop block (203) are respectively fixed on the lower die main body (204) through a rear die stop block plug screw, a left die stop block plug screw and a right die stop block plug screw; the lower die stripping insert (210) is positioned through a positioning hole with a 5-10-degree draft angle on the lower die base plate (205), is fixed on the lower die base plate (205) through a stripping insert stripping threaded hole (211), a lower die stripping insert sealing ring (212) is arranged between the lower die stripping insert (210) and the lower die base plate (205), and the lower die stripping insert (210) is cuboid.
2. The forming die of carbon fiber unmanned aerial vehicle battery case of claim 1, characterized in that back mould dog (201), left mould dog (202) and right mould dog (203) all are equipped with the sealing washer with lower mould main part (204) junction.
3. The forming die of the carbon fiber unmanned aerial vehicle battery shell according to claim 1, wherein a prying die opening is formed in each of the upper die (1), the left die block (202), the right die block (203) and the lower die main body (204).
4. A forming method of a carbon fiber unmanned aerial vehicle battery shell comprises the following steps:
step 1: combining a lower die (2), firstly, placing a lower die demoulding insert sealing ring (212) in a sealing ring groove (2) of a lower die main body (204), and placing a lower die demoulding insert (210) on the lower die demoulding insert sealing ring (212); secondly, mounting a rear die stop block (201), and fixing the rear die stop block (201) on a lower die main body (204) through a die stop block plug screw; thirdly, a right mould stop block (203) is installed,make itFixing a right die stop block (203) on a lower die main body (204) by using a right die stop block plug screw; fourthly, a left mould stop block (202) is installed for useThe left die block (202) is fixed on the lower die main body (204) by a left die block plug screw
Step 2: die assembly after lower mould tablet is spread and is pasted, is pasted to last mould tablet is spread, specifically is: the upper die (1) is positioned through a quadrangular frustum on the lower die main body (204), is connected with the lower die main body (204) through an inner hexagonal bolt (209), and is compacted after die assembly;
and step 3: manufacturing a vacuum bag, namely firstly manufacturing an inner bag: the inner bag is made of a nylon plastic film with the curved surface of the inner cavity of the product enlarged by 1.2-2 times; secondly, manufacturing an outer bag, sequentially placing an isolation film and a breathable felt outside a mold, and fixing a vacuum bag film on a lower mold bottom plate (205) by using a sealing rubber strip; thirdly, connecting the inner bag with the outer bag by using a sealing rubber strip;
and 4, step 4: and (3) autoclave molding, wherein the technological parameters are as follows: time: 100-120 minutes; temperature: 120-130 ℃; pressure: 0.2 to 0.3 MPa; vacuum degree: not less than 0.08 MPa; the heating rate is as follows: 1-1.5 ℃/min; cooling rate: 2-3 ℃/min; releasing pressure and discharging the die from the tank after the temperature of the die is lower than 60 ℃;
and 5: demoulding, namely, firstly disassembling the upper die (1); secondly, disassembling a rear die block (201), a left die block (202) and a right die block (203); thirdly, the lower die demoulding insert (210) and a product are removed along the demoulding direction; and fourthly, detaching the lower die stripping insert through the lower die stripping insert stripping threaded hole (211) by using a pin puller.
5. The method for forming the battery case of the carbon fiber unmanned aerial vehicle according to claim 4, wherein in the step 2, when the lower die material sheet is laid, a first layer of material sheet is laid on the combined lower die according to the laying scribed line and the corresponding angle coordinate, and when the material sheet is laid, the pressing plate is used for expelling air bubbles out and avoiding bridging of the material sheet; after the first layer is paved, a vacuum bag is manufactured and pre-compacted, after pre-compaction, second to fourth layers of material sheets are paved in sequence, and then the vacuum bag is manufactured and pre-compacted; the lower die material sheet is reserved with a lap edge with the width of 10mm for bonding with the upper die paving material sheet.
6. The method for forming the battery shell of the carbon fiber unmanned aerial vehicle according to claim 4, wherein in the step 2, when the upper mold material piece is paved, the material piece is paved on a first layer of material piece on the assembled upper mold according to paving marking lines and corresponding angle coordinates, and when the material piece is paved, a pressure plate is used for expelling air bubbles and avoiding bridging of the material piece; after the first layer is paved, a vacuum bag is manufactured and pre-compacted, after pre-compaction, second to fourth layers of material sheets are paved in sequence, and then the vacuum bag is manufactured and pre-compacted; the lap joint with the lower die material sheet is net size, and no lap joint edge needs to be reserved.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111337860.0A CN114261106A (en) | 2021-11-12 | 2021-11-12 | Forming die and method for battery shell of carbon fiber unmanned aerial vehicle |
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| CN202111337860.0A CN114261106A (en) | 2021-11-12 | 2021-11-12 | Forming die and method for battery shell of carbon fiber unmanned aerial vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115742362A (en) * | 2022-11-15 | 2023-03-07 | 江西洪都航空工业集团有限责任公司 | Composite square tube bending inclined support paving and pasting mold |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111002603A (en) * | 2019-12-12 | 2020-04-14 | 江苏亨睿碳纤维科技有限公司 | Manufacturing method of integrally formed automobile rear wing |
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- 2021-11-12 CN CN202111337860.0A patent/CN114261106A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111002603A (en) * | 2019-12-12 | 2020-04-14 | 江苏亨睿碳纤维科技有限公司 | Manufacturing method of integrally formed automobile rear wing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115742362A (en) * | 2022-11-15 | 2023-03-07 | 江西洪都航空工业集团有限责任公司 | Composite square tube bending inclined support paving and pasting mold |
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