CN107379572B - Equipment and forming method for free roll bending of super-hybrid composite laminate - Google Patents
Equipment and forming method for free roll bending of super-hybrid composite laminate Download PDFInfo
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- CN107379572B CN107379572B CN201710566536.3A CN201710566536A CN107379572B CN 107379572 B CN107379572 B CN 107379572B CN 201710566536 A CN201710566536 A CN 201710566536A CN 107379572 B CN107379572 B CN 107379572B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F3/00—Severing by means other than cutting; Apparatus therefor
- B26F3/004—Severing by means other than cutting; Apparatus therefor by means of a fluid jet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/02—Bending or folding
- B29C53/04—Bending or folding of plates or sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
- B29C2035/1616—Cooling using liquids
Abstract
The invention discloses equipment and a forming method for free roll bending of a super-hybrid composite laminate, wherein the super-hybrid composite laminate is a laminated structure of a metal layer and a fiber reinforced resin matrix composite; the forming method comprises six procedures of glue spraying and feeding, hot rolling, free roll bending, water cutting and pressure maintaining cooling; the free roll bending operation is realized by the rotation of the bending roll shaft and the revolution of the winding roll shaft, the bending curvature is determined by the radius of the fixed roll shaft, and the bending angle is determined by the revolution angle of the bending roll shaft; and the bent member is placed in a closed container with constant pressure after being freely rolled and bent, and is cooled to the normal temperature through heat preservation. The free roll bending equipment and the forming method integrate the preparation and the bending forming of the super-hybrid composite laminate, greatly reduce the manufacturing cost and time, and have the advantages of high interlayer bonding strength, high forming precision, high automation degree, high designability and the like.
Description
Technical Field
The invention belongs to the technical field of advanced preparation and forming of a super-hybrid composite laminate structure, and particularly relates to free roll bending equipment and a forming method of a super-hybrid composite laminate structure.
Background
The super-hybrid composite laminate is a laminated structure of a plurality of metal sheets and a continuous fiber reinforced resin matrix composite laminate, and the super-hybrid composite material becomes an advanced structural material with great application prospect by virtue of the super-high specific strength and specific stiffness and excellent shock resistance and corrosion resistance, thereby drawing wide attention in various fields of aerospace, ships, rail transit and automobile manufacturing. Due to the complexity of the structure of the super-hybrid composite laminated plate, the problems of preparation and forming are concerned, and at present, the methods for preparing and forming the super-hybrid composite laminated plate member mainly comprise the following steps: (1) cutting and pre-shaping a metal plate and a sandwich material, then paving the cut metal plate and the sandwich material in a mould with a special profile, and obtaining a curvature component after hot press forming. For example, chinese patent document CN104707888A discloses a method for forming a fiber-metal hybrid composite part by lamination. (2) And (3) laminating the metal and the composite material, and then placing the laminated metal and composite material in a mould to be formed under the bidirectional differential pressure loading. A method for preparing and molding a GLARE element as described in Chinese patent publication No. CN 103895315A. (3) And heating the prepared fiber metal laminate, and then stamping and forming the fiber metal laminate into a required component. For example, chinese patent No. CN103861932A discloses an apparatus and a method for forming a thermoplastic glass fiber reinforced aluminum alloy laminate. The method (1) has the disadvantages that the pressure at each part of the blank cannot be ensured to be constant by adopting a rigid special-shaped die to form the curvature component, and the interlayer performance of the formed component is poor. The method (2) adopts bidirectional differential pressure forming, and has the defect that the forming precision of the component cannot be ensured. The method (3) adopts warm forming, and has the defects that the method can only be used for forming the super-hybrid composite laminate member with the thermoplastic resin matrix composite material as the sandwich layer, and the interlayer bonding strength is greatly influenced due to the fact that the metal layer and the composite material layer cannot be deformed cooperatively.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide equipment and a forming method for free roll bending of a super-hybrid composite laminate.
The invention adopts the following technical scheme:
the free roll bending forming method of the super-hybrid composite laminate comprises five working procedures: glue spraying and feeding, hot rolling, free roll bending, water cutting and pressure maintaining cooling.
A device for freely rolling and bending a super-hybrid composite laminate,
the device comprises a feeding roller shaft assembly, a bending assembly, a cutting assembly and a heat-preservation and pressure-preservation box in sequence from feeding to discharging;
the feeding roller shaft assembly consists of a plurality of cylindrical roller shafts which are parallel to each other, a spray gun is arranged between the roller shafts, and a single-layer material of the composite laminate is wound on each roller shaft;
the roller shaft assembly consists of a plurality of parallel paired cylindrical shafts which are arranged in front and back, and heating resistance wires are contained in the roller shafts;
the bending component consists of a disc, a fixed roll shaft and a bending roll shaft,
the two sides of the feeding direction are respectively provided with a disk, the circle centers of the two disks are provided with a cylindrical fixed roll shaft, the two disks are provided with a plurality of radial clamping grooves passing through the circle centers, the two disk clamping grooves are provided with cylindrical bending roll shafts parallel to the fixed roll shaft, and the bending roll shafts and the fixed roll shaft are fixed on the two disks;
the disc is driven to rotate by a digital control system containing a CAM software program;
the fixed roll shaft and the bending roll shaft always keep a certain linear speed to rotate in the bending process, and the bending roll shaft revolves around the fixed roll shaft along with the disc;
the tail end of the discharge port is provided with a cutting assembly;
the heat-preservation and pressure-maintaining box comprises a closed container with a movable piston inside, and a heating resistance wire and a cooling water channel are arranged inside the box body.
Further, the free roll bending is realized by the rotation of the bending roller shaft and the revolution around the fixed roller shaft, the bending curvature is determined by the radius of the fixed roller shaft, and the bending angle is determined by the revolution angle of the bending roller shaft around the fixed roller shaft.
The fixed roll shafts with different radiuses are used for different bending curvatures in the free roll bending process, the fixed roll shafts are always located at the circle center positions of the disc, when a multi-curvature bending component is formed, a plurality of roll shafts with different radiuses, which are arranged in a disc clamping groove, sequentially slide to the circle center positions to be used as the fixed roll shafts to complete forming of corresponding curvature positions, after the bending action is completed, the bent roll shafts revolve around the fixed roll shafts in the opposite direction to return to the initial positions to start forming of the next position, the bent roll shafts and the fixed roll shafts are always in a rotating state at a constant speed in the whole work, and bending forming of different radiuses of curvature in the same component is achieved.
Furthermore, the cutting assembly comprises a water cutting spray head, an ejector block, a spring and a fixing plate, the ejector block is fixedly connected with the fixing plate through the spring, the ejector block abuts against the processing material and detects the height of a part needing to be cut, and a constant height difference is kept between the part needing to be cut and the water cutting spray head.
The free roll bending and forming method of the super-hybrid composite laminate based on the equipment is characterized by comprising the following steps of: the method comprises the following steps:
s1, sleeving the metal coiled material and the fiber reinforced resin matrix composite prepreg coiled material which are subjected to surface treatment on corresponding feeding roll shafts in a specific sequence;
s2, when the feeding roller shaft rotates at a specific linear speed, the spray gun uniformly sprays the rubber material on the surface of the metal coiled material, which is required to be bonded with the composite material;
s3, after being laminated, the multi-layer coiled materials enter a multi-pass high-temperature rolling station through traction, and redundant glue and air are discharged under high temperature and high pressure, so that the layers are completely attached;
s4, enabling the composite board subjected to interlayer sealing and attaching to enter a free bending station, enabling a fixed roller shaft to rotate at a constant speed, enabling a bending roller shaft to revolve around the fixed roller shaft under the traction of a disc according to a preset program, resetting the bending roller shaft in the opposite direction after the composite board is bent to a specific radian, and switching the fixed roller shaft to prepare for the next bending action with different curvatures;
s5, transferring the bent and formed part to a water cutting station for cutting, and performing cutting operation after the elastic material ejection device automatically adjusts the height of the water gun according to the height of the cutting part;
s6, placing the formed super-hybrid composite material member in a closed cavity, driving a piston to descend to compress the air in the closed cavity to reach a specified pressure, and electrifying a resistance wire in a box body to release heat to keep the temperature and pressure to be kept for curing;
and S7, introducing cooling water into a preset cooling water channel in the box body, maintaining the pressure and reducing the temperature, and taking out the formed component.
Further, in the step S1, the metal coil includes titanium alloy, aluminum alloy, magnesium alloy, copper alloy or stainless steel coil with a thickness of 0.1mm to 0.5mm, the sandwich layer includes various fiber reinforced resin-based composite prepreg or self-reinforced resin-based composite prepreg with a thickness of 0.1mm to 0.5mm, and the number and arrangement positions of the feeding roller shafts are determined according to the structure of the super-hybrid composite laminate member.
Further, in step S2, the feeding roller rotates at a uniform angular speed to feed, if the matrix of the intermediate layer composite prepreg is thermoplastic resin, a thermoplastic resin film roller is additionally arranged between the metal layer and the composite layer, and if the matrix of the intermediate layer composite prepreg is thermosetting resin, the resin mixed in the organic solvent is uniformly sprayed on the contact surface of the metal coil and the prepreg by a spray gun, wherein the spraying speed depends on the required adhesive layer thickness.
Further, in step S3, the rolling station includes three pairs of roller shafts, and heating resistance wires are contained in the roller shafts, the heating temperature depends on the curing temperature of the resin matrix in the prepreg, and the rolling pressure depends on the curing pressure of the prepreg.
Further, in step S4, a corresponding program is generated in the CAM software according to the shape of the complex bending component and is input into the device digital control system, the disk is driven to rotate, so as to drive the bending roller to revolve around the fixed roller, after the complex bending component is bent to a specific radian, the bending roller is reset in the opposite direction, and the fixed roller is switched to prepare for the next bending action with different curvatures, and the fixed roller and the bending roller always rotate at a certain linear speed during the bending process.
Further, in steps S6 and S7, the piston in the closed container in the heat-preservation and pressure-preservation box moves up and down to compress air, so as to obtain the pressure-preservation pressure required by the super-hybrid composite laminate, when the matrix of the composite prepreg is thermosetting resin, the heating resistance wire in the box body works to complete the heat-preservation process, and after the solidification is completed, the cooling water channel is filled with circulating cooling water to rapidly cool.
The metal coil stock needs to be subjected to surface treatment, namely anodic oxidation or sand blasting treatment after removing oil stains and oxide layers on the surface so as to increase the roughness of the metal surface and enhance the bonding strength between the metal layer and the composite material layer. The number of layers, the types of fibers, the fiber direction and the type of the resin matrix of the prepreg of the composite material can be freely selected, and the extremely strong designability of a material system in the forming process is reflected. When thermosetting resin-based composite prepreg, such as epoxy resin-based or polyimide-based, is selected, uncured epoxy resin or polyimide resin needs to be dispersed in a corresponding organic solvent to reduce the viscosity of the epoxy resin or polyimide resin in order to ensure the uniformity of spray coating to achieve the maximum interlayer strength, thereby being beneficial to spray coating by a spray gun.
In order to avoid the defects of great reduction of interlayer performance, reduction of forming precision and the like caused by wrinkling of a metal layer of the super-hybrid composite laminate and bending and twisting of fibers, all roll shafts in the device need to rotate at the same linear speed, so that certain tension is ensured to exist in each layer of coiled material. And the autorotation linear velocity of the roller shaft must be the same as the working forming velocity of the laminated plate structure, namely, the laminated plate structure and the roller shaft cannot move relatively, so that the surface quality and the mechanical property of the metal layer are ensured to the maximum extent.
The elastic material lifting device and the water cutting spray head are always kept at a constant height difference, the elastic material lifting device can detect the heights of the cutting parts of different bending components by means of elastic deformation of the spring, and accordingly the spray gun can reach a specified height, so that the cutting parts are always located at a proper working high temperature, and the working efficiency and the surface quality of the cutting end face are improved to the maximum extent. And a piston at the top of the closed container in the pressure maintaining cooling station is connected with a hydraulic constant pressure control system, and the air pressure in the closed cavity is always ensured to be at the forming pressure of the super-hybrid composite laminate member in the working state.
The invention has the beneficial effects that:
(1) the roll bending method is adopted to form the super-hybrid composite material, the preparation and the forming of the super-hybrid composite laminate member are integrated, the traditional die forming is replaced, the manufacturing cost and the manufacturing time are greatly reduced, and the method has the advantages of high interlayer bonding strength, high forming precision, high automation degree, strong designability and the like.
(2) Even a single piece can be processed at extremely low cost without mass production.
(3) Aiming at different super-hybrid composite layer plate structures, the designability of a forming component material system is improved only by changing the number and the arrangement positions of the feeding roller shafts.
(4) The positions of the plurality of unequal-diameter roll shafts limited in the disc clamping grooves can be changed in a sliding mode, forming of the bent components with different curvature radiuses is achieved, the bent roll shafts can revolve around the fixed roll shafts at any angle, forming of the bent components with different radians is achieved, designability of the bent shape of the super-hybrid composite laminate component is improved, and free bending of the super-hybrid composite laminate component is achieved.
(5) The forming stations are arranged in the same device and work cooperatively through a digital control system, so that the integrated forming of the bent member of the super-hybrid composite laminate is realized, and the working efficiency and the forming precision are greatly improved.
Drawings
FIG. 1 is an isometric illustration of an apparatus for free roll bending ultra-hybrid composite plies according to the present invention.
FIG. 2 is a schematic diagram of each station of the free roll bending forming method of the ultra-hybrid composite laminate.
Fig. 3 is a schematic diagram of a circuit for holding pressure using a pressure limiting variable pump.
In the figure, 1, a feeding roll shaft, 2, a metal coiled material, 3, a first rolling shaft, 4, a second rolling shaft, 5, a third rolling shaft, 6, a super-hybrid composite laminate, 7, a bending roll shaft, 8, a fixed roll shaft, 9, a water cutting nozzle, 10, a jacking block, 11, a spring, 12, a fixing plate, 13, a super-hybrid composite laminate bending component, 14, a limiting nut, 15, a disc and 16, a fiber reinforced resin matrix composite prepreg are adopted.
Detailed Description
The following describes embodiments of the present invention in detail, and the embodiments are developed based on the technical solutions of the present invention, and provide detailed implementation manners and specific operation procedures.
The invention is further described with reference to the following figures and specific examples.
Example 1:
firstly, carrying out oil removal, alkali washing, acid washing and phosphoric acid anodic oxidation treatment on a 2024 aluminum alloy coiled material with the thickness of 0.3 mm;
secondly, sleeving three rolls of the aluminum alloy coiled material subjected to surface treatment and two rolls of double-layer glass fiber reinforced epoxy resin prepreg coiled materials (the single-layer thickness is 0.15mm) on corresponding feeding roll shafts at intervals;
thirdly, the feeding roller rotates at a specific linear speed, and simultaneously, the spray gun uniformly sprays the epoxy resin dispersed in the trichloromethane on the surface of the aluminum alloy coiled material, which is required to be bonded with the glass fiber reinforced epoxy resin composite material, wherein the glue spraying amount is 40g/m on one side2；
Fourthly, the laminated multilayer coiled materials enter three continuous high-temperature rolling stations through traction, the excessive glue amount and air are discharged under high temperature and high pressure, the layers are completely attached, the roller temperature is set to be 160 ℃, and the rolling pressure is set to be 0.5 MPa;
fifthly, enabling the composite board subjected to interlayer sealing and attaching to enter a free bending station, enabling a fixed roll shaft with the diameter of 100mm to keep rotating at a constant speed, enabling a bending roll shaft to revolve around the fixed roll shaft for 90 degrees under the traction of a disc, and enabling the bending roll shaft to rotate for 90 degrees in the opposite direction to reset;
sixthly, transferring the bent and formed L-shaped super-hybrid composite laminate component to a water cutting station for cutting under the self rotation of each roller shaft, and performing cutting operation after the elastic material ejecting device automatically adjusts the height of a water gun according to the height of a cutting part;
seventhly, feeding the cut L-shaped super-hybrid composite member into a closed cavity by a conveyor belt, driving a piston to descend by adopting a hydraulic driving device of a pressure-limiting variable pump to compress internal air so as to ensure that the internal pressure is 0.5MPa, electrifying a resistance wire in a box body to release heat so as to keep the temperature at 160 ℃, and preserving heat and pressure for 150 minutes;
and eighthly, introducing cooling water into a preset cooling water channel in the box body after the materials are fully solidified, maintaining the pressure and reducing the temperature, and taking out the L-shaped super-hybrid composite laminate component.
Example 2:
firstly, carrying out oil removal, acid cleaning and sodium hydroxide anodic oxidation treatment on a TA2 titanium alloy coiled material with the thickness of 0.3 mm;
secondly, sleeving three rolls of the titanium alloy coiled material subjected to surface treatment, two rolls of double-layer carbon fiber reinforced polyether ether copper prepreg coiled materials (the single-layer thickness is 0.125mm) and four rolls of polyether ether copper films with the thickness of 0.1mm on corresponding feeding roll shafts at intervals in sequence;
thirdly, the laminated multilayer coiled materials enter three continuous high-temperature rolling stations through traction, the excessive glue amount and air are discharged under high temperature and high pressure, the layers are completely attached, the roller temperature is set to be 390 ℃, and the rolling pressure is set to be 0.6 MPa;
fourthly, the composite board subjected to interlayer sealing and attaching enters a free bending station, a fixed roll shaft with the diameter of 100mm keeps rotating at a constant speed, a bending roll shaft revolves around the fixed roll shaft for 90 degrees under the traction of a disc, and the bending roll shaft rotates for 90 degrees in the opposite direction to reset;
fifthly, transferring the bent and formed L-shaped super-hybrid composite laminate component to a water cutting station for cutting under the self rotation of each roller shaft, and performing cutting operation after the elastic material ejecting device automatically adjusts the height of a water gun according to the height of a cutting part;
sixthly, feeding the cut L-shaped super-hybrid composite member into a closed cavity by a conveyor belt, driving a piston to descend by adopting a hydraulic driving device of a pressure-limiting variable pump to compress internal air so as to ensure that the internal pressure is 0.6MPa, electrifying a resistance wire in a box body to release heat so as to keep the temperature at 390 ℃, and preserving heat and pressure for 20 minutes;
and seventhly, introducing cooling water into a preset cooling water channel in the box body after the materials are fully solidified, maintaining the pressure and reducing the temperature, and taking out the L-shaped super-hybrid composite laminate component.
Example 3:
firstly, carrying out oil removal, alkali washing, acid washing and sand blasting treatment on a 2024 aluminum alloy coiled material with the thickness of 0.3 mm;
secondly, sleeving two rolls of the aluminum alloy coiled material subjected to surface treatment and one roll of double-layer glass fiber reinforced epoxy resin prepreg coiled material (the single-layer thickness is 0.15mm) on corresponding feeding roll shafts in sequence at intervals;
thirdly, the feeding roller rotates at a specific linear speed, and simultaneously, the spray gun uniformly sprays the epoxy resin dispersed in the trichloromethane on the surface of the aluminum alloy coiled material, which is required to be bonded with the glass fiber reinforced epoxy resin composite material, wherein the glue spraying amount is 40g/m on one side2；
Fourthly, the laminated multilayer coiled materials enter three continuous high-temperature rolling stations through traction, the excessive glue amount and air are discharged under high temperature and high pressure, the layers are completely attached, the roller temperature is set to be 160 ℃, and the rolling pressure is set to be 0.5 MPa;
fifthly, enabling the composite board subjected to interlayer sealing and bonding to enter a free bending station, enabling a roller shaft 1 with the diameter of 100mm to be used as a fixed roller shaft to keep constant-speed rotation, enabling a roller shaft 2 with the diameter of 80mm to be used as a bending roller shaft to revolve around the fixed roller shaft for 180 degrees under the traction of a disc, enabling the roller shaft 2 to rotate in the opposite direction for 180 degrees to reset, enabling the roller shaft 1 and the roller shaft 2 to descend simultaneously, enabling the roller shaft 2 to be used as the fixed roller shaft, enabling the roller shaft 1 with the diameter of 100mm to be used as the bending roller shaft to revolve around the fixed roller shaft for 180 degrees under;
sixthly, transferring the bent and formed S-shaped super-hybrid composite laminate component to a water cutting station for cutting under the self rotation of each roller shaft, and performing cutting operation after the elastic material ejecting device automatically adjusts the height of a water gun according to the height of a cutting part;
seventhly, conveying the cut S-shaped super-hybrid composite member into a closed cavity by a conveyor belt, driving a piston to descend by adopting a hydraulic driving device of a pressure-limiting variable pump to compress internal air to ensure that the internal pressure is 0.5MPa, electrifying a resistance wire in a box body to release heat to keep the temperature at 160 ℃, and preserving heat and pressure for 150 minutes;
and eighthly, introducing cooling water into a preset cooling water channel in the box body after the materials are fully solidified, maintaining the pressure and reducing the temperature, and taking out the S-shaped super-hybrid composite laminate component.
Example 4:
firstly, carrying out oil removal, acid cleaning and sand blasting treatment on a TA2 titanium alloy coiled material with the thickness of 0.3 mm;
secondly, sleeving two rolls of the titanium alloy coiled material subjected to surface treatment, a roll of double-layer carbon fiber reinforced polyether ether copper prepreg coiled material (the single-layer thickness is 0.125mm) and two rolls of polyether ether copper films with the thickness of 0.1mm on corresponding feeding roll shafts in sequence at intervals;
thirdly, the laminated multilayer coiled materials enter three continuous high-temperature rolling stations through traction, the excessive glue amount and air are discharged under high temperature and high pressure, the layers are completely attached, the roller temperature is set to be 390 ℃, and the rolling pressure is set to be 0.6 MPa;
fourthly, the composite board subjected to interlayer sealing and bonding enters a free bending station, a roll shaft 1 with the diameter of 100mm is used as a fixed roll shaft to keep constant speed rotation, a roll shaft 2 with the diameter of 80mm is used as a bending roll shaft to revolve around the fixed roll shaft by 180 degrees under the traction of a disc, the roll shaft 2 rotates by 180 degrees in the opposite direction to reset, the roll shaft 1 and the roll shaft 2 simultaneously descend to enable the roll shaft 2 to be used as the fixed roll shaft, the roll shaft 1 with the diameter of 100mm is used as the bending roll shaft to revolve around the fixed roll shaft by 180 degrees under the traction of the disc, and the roll shaft 1 rotates by 180 degrees;
fifthly, transferring the S-shaped super-hybrid composite laminate member after the bending forming to a water cutting station for cutting under the self rotation of each roller shaft, and performing cutting operation after the elastic material ejecting device automatically adjusts the height of a water gun according to the height of a cutting part;
sixthly, feeding the cut S-shaped super-hybrid composite member into a closed cavity by a conveyor belt, driving a piston to descend by adopting a hydraulic driving device of a pressure-limiting variable pump to compress internal air so as to ensure that the internal pressure is 0.6MPa, electrifying a resistance wire in a box body to release heat so as to keep the temperature at 390 ℃, and preserving heat and pressure for 20 minutes;
and seventhly, introducing cooling water into a preset cooling water channel in the box body after the materials are fully solidified, maintaining the pressure and reducing the temperature, and taking out the S-shaped super-hybrid composite laminate component.
The above description is only a preferred embodiment of the present invention, and it should be noted that several changes or modifications may be made by those skilled in the art without departing from the general concept of the present invention, and these changes or modifications should also fall within the protection scope of the present invention.
Claims (8)
1. The utility model provides a super miscellaneous composite laminate is equipment of bending by roll freely which characterized in that:
the device comprises a feeding roller shaft assembly, a bending assembly, a cutting assembly and a heat-preservation and pressure-preservation box in sequence from feeding to discharging;
the feeding roller shaft assembly consists of a plurality of cylindrical roller shafts which are parallel to each other, a spray gun is arranged between the roller shafts, and a single-layer material of the composite laminate is wound on each roller shaft;
the roller shaft assembly consists of a plurality of parallel paired cylindrical shafts which are arranged in front and back, and heating resistance wires are contained in the roller shafts;
the bending component consists of a disc, a fixed roll shaft and a bending roll shaft,
the two sides of the feeding direction are respectively provided with a disk, the circle centers of the two disks are provided with a cylindrical fixed roll shaft, the two disks are provided with a plurality of radial clamping grooves passing through the circle centers, the two disk clamping grooves are provided with cylindrical bending roll shafts parallel to the fixed roll shaft, and the bending roll shafts and the fixed roll shaft are fixed on the two disks;
the disc is driven to rotate by a digital control system containing a CAM software program;
in the bending process, the fixed roll shaft and the bending roll shaft keep a certain linear speed to rotate, and the bending roll shaft revolves around the fixed roll shaft along with the disc;
the tail end of the discharge port is provided with a cutting assembly;
the heat-preservation and pressure-maintaining box comprises a closed container with a movable piston inside, and a heating resistance wire and a cooling water channel are arranged inside the box body.
2. The apparatus of claim 1, wherein the cutting assembly comprises a water cutting nozzle, a material ejecting block, a spring, and a fixing plate, the material ejecting block is fixed to the fixing plate by the spring, the material ejecting block is used for ejecting the processing material and detecting the height of the part to be cut, and the cutting part of the member and the water cutting nozzle maintain a constant height difference.
3. A free roll bending and forming method of super hybrid composite laminate based on the apparatus of claim 1, characterized in that: the method comprises the following steps:
s1, sleeving the metal coiled material and the fiber reinforced resin matrix composite prepreg coiled material which are subjected to surface treatment on corresponding feeding roll shafts in a specific sequence;
s2, when the feeding roller shaft rotates at a specific linear speed, the spray gun uniformly sprays the rubber material on the surface of the metal coiled material, which is required to be bonded with the composite material;
s3, after being laminated, the multi-layer coiled materials enter a multi-pass high-temperature rolling station through traction, and redundant glue and air are discharged under high temperature and high pressure, so that the layers are completely attached;
s4, enabling the composite board subjected to interlayer sealing and attaching to enter a free bending station, enabling a fixed roller shaft to rotate at a constant speed, enabling a bending roller shaft to revolve around the fixed roller shaft under the traction of a disc according to a preset program, resetting the bending roller shaft in the opposite direction after the composite board is bent to a specific radian, and switching the fixed roller shaft to prepare for the next bending action with different curvatures;
s5, transferring the bent and formed part to a water cutting station for cutting, and performing cutting operation after the elastic material ejection device automatically adjusts the height of the water gun according to the height of the cutting part;
s6, placing the formed super-hybrid composite material member in a closed cavity, driving a piston to descend to compress the air in the closed cavity to reach a specified pressure, and electrifying a resistance wire in a box body to release heat to keep the temperature and pressure to be kept for curing;
s7, introducing cooling water into a preset cooling water channel in the box body, maintaining the pressure and reducing the temperature, and taking out the formed component;
all roll shafts in the device rotate at the same linear speed, and the rotation linear speed of the roll shafts is the same as the working forming speed of the laminated plate structure.
4. The free roll bending and forming method of the super-hybrid composite laminate as claimed in claim 3, wherein: the metal coiled material in the step S1 comprises titanium alloy, aluminum alloy, magnesium alloy, copper alloy or stainless steel coiled material with the thickness of 0.1mm-0.5mm, the sandwich layer comprises various fiber reinforced resin-based composite material prepregs or self-reinforced resin-based composite material prepregs with the thickness of 0.1mm-0.5mm, and the number and the arrangement positions of the feeding roll shafts are determined according to the structure of the super-hybrid composite laminate component.
5. The free roll bending and forming method of the super-hybrid composite laminate as claimed in claim 3, wherein: in step S2, the feeding roller rotates at a uniform angular speed to feed, if the matrix of the intermediate layer composite prepreg is thermoplastic resin, a thermoplastic resin film roller is added between the metal layer and the composite layer, and if the matrix of the intermediate layer composite prepreg is thermosetting resin, the resin mixed in the organic solvent is uniformly sprayed on the contact surface of the metal coil and the prepreg by a spray gun, and the spraying speed depends on the required adhesive layer thickness.
6. The free roll bending and forming method of the super-hybrid composite laminate as claimed in claim 3, wherein: in step S3, the roll pressing station includes three pairs of roll shafts, heating resistance wires are contained in the roll shafts, the heating temperature depends on the curing temperature of the resin matrix in the prepreg, and the roll pressing pressure depends on the curing pressure of the prepreg.
7. The free roll bending and forming method of the super-hybrid composite laminate as claimed in claim 3, wherein: in step S4, a corresponding program is generated in the CAM software according to the shape of the complex bending component and input into the device digital control system, the disk is driven to rotate, so as to drive the bending roller to revolve around the fixed roller, the bending roller shaft is reset in the opposite direction after bending to a specific radian, and the fixed roller shaft is switched to prepare for the next bending action with different curvatures, and the fixed roller shaft and the bending roller shaft always rotate at a certain linear speed in the bending process.
8. The free roll bending and forming method of the super-hybrid composite laminate as claimed in claim 3, wherein: and S6 and S7, moving a piston in a closed container in the heat-preservation and pressure-preservation box up and down to compress air to obtain the pressure-preservation pressure required by the super-hybrid composite laminate, when the matrix of the composite prepreg is thermosetting resin, working of a heating resistance wire in the box body completes the heat-preservation process, and after solidification is completed, circulating cooling water is introduced into the cooling water channel to rapidly cool.
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| CN108656507B (en) * | 2018-04-03 | 2021-05-25 | 南京工程学院 | Method and device for improving progressive forming distortion and wrinkling of high polymer sheet |
| CN110238895A (en) * | 2019-07-01 | 2019-09-17 | 吉林省华阳新材料研发有限公司 | Carbon fiber prepreg automatic cutter and its feeding mechanism |
| CN111546650A (en) * | 2020-04-01 | 2020-08-18 | 广德竹昌电子科技有限公司 | Synchronous gluing jig and method for three materials of notebook shell |
| CN111633389A (en) * | 2020-06-23 | 2020-09-08 | 张家港玉成精机股份有限公司 | Machining method for circular ring workpiece |
| CN113183492B (en) * | 2021-04-02 | 2023-01-13 | 太原理工大学 | Rolling process of stainless steel/carbon fiber/stainless steel laminated plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1406159A (en) * | 2000-01-24 | 2003-03-26 | Atd公司 | Apparatus and method for manufacture of multilayer metal products |
| WO2006050610A2 (en) * | 2004-11-15 | 2006-05-18 | Dofasco Inc. | Laminate panel and process for production thereof |
| CN1274493C (en) * | 2002-03-29 | 2006-09-13 | 拉马拉股份有限公司 | Device and method for the production of composite materials |
| DE102014108112A1 (en) * | 2014-06-10 | 2015-12-17 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Method for producing a composite component and composite component |
| CN205613882U (en) * | 2016-04-12 | 2016-10-05 | 上海史密斯品牌管理有限公司 | Roll -in equipment |
-
2017
- 2017-07-12 CN CN201710566536.3A patent/CN107379572B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1406159A (en) * | 2000-01-24 | 2003-03-26 | Atd公司 | Apparatus and method for manufacture of multilayer metal products |
| CN1274493C (en) * | 2002-03-29 | 2006-09-13 | 拉马拉股份有限公司 | Device and method for the production of composite materials |
| WO2006050610A2 (en) * | 2004-11-15 | 2006-05-18 | Dofasco Inc. | Laminate panel and process for production thereof |
| DE102014108112A1 (en) * | 2014-06-10 | 2015-12-17 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Method for producing a composite component and composite component |
| CN205613882U (en) * | 2016-04-12 | 2016-10-05 | 上海史密斯品牌管理有限公司 | Roll -in equipment |
Non-Patent Citations (1)
| Title |
|---|
| GLARE层板复合材料零件成型与装配技术浅析;黄侠;《航空制造技术》;北京航空制造工程研究所;20100415(第6期);第92-95页 * |
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