CN116922811B - Device and method for manufacturing fiber reinforced thermoplastic resin matrix composite material through friction additive - Google Patents
Device and method for manufacturing fiber reinforced thermoplastic resin matrix composite material through friction additive Download PDFInfo
- Publication number
- CN116922811B CN116922811B CN202310969482.0A CN202310969482A CN116922811B CN 116922811 B CN116922811 B CN 116922811B CN 202310969482 A CN202310969482 A CN 202310969482A CN 116922811 B CN116922811 B CN 116922811B
- Authority
- CN
- China
- Prior art keywords
- shaft sleeve
- additive
- bar
- prepreg
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000654 additive Substances 0.000 title claims abstract description 100
- 230000000996 additive effect Effects 0.000 title claims abstract description 99
- 239000000835 fiber Substances 0.000 title claims abstract description 48
- 239000002131 composite material Substances 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 40
- 239000011159 matrix material Substances 0.000 title claims abstract description 40
- 229920005992 thermoplastic resin Polymers 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 57
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 229920005989 resin Polymers 0.000 claims abstract description 33
- 239000011347 resin Substances 0.000 claims abstract description 33
- 238000001125 extrusion Methods 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims abstract description 9
- 238000004804 winding Methods 0.000 claims description 15
- 230000009471 action Effects 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 239000000805 composite resin Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 1
- 235000017491 Bambusa tulda Nutrition 0.000 claims 1
- 241001330002 Bambuseae Species 0.000 claims 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 1
- 239000011425 bamboo Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 32
- 229920001169 thermoplastic Polymers 0.000 abstract description 8
- 239000004416 thermosoftening plastic Substances 0.000 abstract description 8
- 239000002783 friction material Substances 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 5
- 239000011148 porous material Substances 0.000 abstract description 5
- 239000011229 interlayer Substances 0.000 abstract description 4
- 229920006253 high performance fiber Polymers 0.000 abstract description 3
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000011199 continuous fiber reinforced thermoplastic Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000020169 heat generation Effects 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000010146 3D printing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000005470 impregnation Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010309 melting process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 239000011202 short fiber thermoplastic Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
-
- 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
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/171—Processes of additive manufacturing specially adapted for manufacturing multiple 3D objects
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The application discloses a fiber reinforced thermoplastic resin matrix composite friction additive manufacturing device and method. In the resin bar extrusion mechanism, the shaft sleeve can be used for the bar to vertically penetrate through and rotate around a vertical line in synchronization with the bar, the lower end of the shaft sleeve can generate heat with the additive in a friction way, the softened end bar can flow along the radial direction of the shaft sleeve and is laid on the additive layer, and the shaft sleeve can move upwards relative to the bar under the drive of the supporting cylinder. In the prepreg layering mechanism, the prepreg entering between the supporting plate and the conveying belt is extruded by the supporting plate and the conveying belt, and the conveying belt brings the prepreg onto the additive. The device of the application can realize friction material increase of the fiber reinforced thermoplastic composite material by arranging the resin bar extrusion mechanism and the prepreg layering mechanism, and can keep good metallurgical connection effect of material increase tissues while avoiding defect generation such as pores and interlayer cracks, so as to obtain a high-precision and high-performance fiber reinforced thermoplastic composite material structural member.
Description
Technical Field
The application relates to the field of additive manufacturing, in particular to a friction additive manufacturing device and method for a fiber reinforced thermoplastic resin matrix composite material.
Background
The fiber reinforced resin matrix composite material consists of reinforced fibers, a matrix material and an interface phase of the reinforced fibers and the matrix material, has excellent performances of high specific strength, high specific modulus, high temperature resistance, wear resistance and the like, and is widely applied to the production and living fields of industry and agriculture. Compared with the thermosetting fiber reinforced resin matrix composite, the thermoplastic fiber reinforced resin matrix composite has the advantages of good toughness, high forming speed, easy recovery and reprocessing, and the like, and has wide application space. With the improvement of the requirements of the complexity, the reliability and the like of the structure, the conventional molding process of the traditional thermoplastic resin matrix composite material such as compression molding, pultrusion molding and the like can not meet the requirements. The additive manufacturing (3D printing) technology realizes layer-by-layer accumulation of materials under certain temperature and pressure conditions, and further has the capability of constructing any complex parts.
Disclosure of Invention
The application provides a friction additive manufacturing device and a method for a fiber reinforced thermoplastic resin matrix composite material, which can realize friction additive of the fiber reinforced thermoplastic composite material.
The embodiment of the application provides a fiber reinforced thermoplastic resin matrix composite friction additive manufacturing device, which comprises a resin bar extrusion mechanism and a prepreg layering mechanism. The resin bar extrusion mechanism comprises a first supporting frame and a supporting cylinder arranged on the first supporting frame, the supporting cylinder can move vertically, the supporting cylinder comprises a shaft sleeve, the central line of the shaft sleeve extends vertically and can rotate around a vertical line, the lower end of the shaft sleeve forms the lower end of the supporting cylinder, the shaft sleeve can be used for enabling bars to penetrate vertically and rotate around the vertical line synchronously with the bars, the lower end of the shaft sleeve can generate heat through friction with the additive, softened end bars can flow radially and are laid on the additive layer, and the shaft sleeve can move upwards relative to the bars under the driving of the supporting cylinder so that the bars are extruded downwards relatively. The prepreg laying mechanism comprises a second support frame connected with the first support frame, and a winding drum, a conveying belt and a supporting plate which are respectively arranged on the second support frame, wherein the central line of the winding drum extends longitudinally and can rotate around the longitudinal line, the winding drum is used for winding prepreg, the supporting plate is transversely arranged, the supporting plate supports the prepreg, the conveying belt can be transversely driven and is positioned above the supporting plate, the output end face of the conveying belt faces the direction of the shaft sleeve, the prepreg entering between the supporting plate and the conveying belt is extruded by the supporting plate and the conveying belt, and the conveying belt is used for conveying the prepreg to an additive so as to lay the prepreg on the additive.
In some of these embodiments, the support cylinder further comprises a cylinder body, an upper cylinder cover, a lower cylinder cover, an upper confinement ring, a lower confinement ring, and a bearing. The cylinder body is sleeved outside the shaft sleeve. The upper cylinder cover is provided with an upper opening communicated with the cavity of the shaft sleeve, and the upper cylinder cover is arranged at the upper end of the cylinder body. The lower cylinder cover is provided with a lower opening through which the shaft sleeve penetrates, and the lower cylinder cover is arranged at the lower end of the cylinder body. The upper limiting ring is sleeved outside the shaft sleeve, is arranged in the cavity of the cylinder body and is arranged on the upper cylinder cover. The lower limiting ring is sleeved outside the shaft sleeve, is arranged in the cavity of the cylinder body and is arranged on the lower cylinder cover. The bearing comprises an upper bearing and a lower bearing, the upper bearing and the lower bearing are both sleeved outside the shaft sleeve, the upper end face of the upper bearing is abutted against the lower end face of the upper shaft neck of the bearing, the upper bearing is arranged on the upper limiting ring, the lower bearing is arranged on the lower limiting ring, and the lower end face of the lower bearing is abutted against the upper end face of the lower shaft neck of the bearing.
In some embodiments, the support cylinder further comprises a clamp ring sleeved outside the shaft sleeve, the clamp ring is arranged below the support cylinder and mounted on the lower cylinder cover, and the clamp ring is tapered to gradually shrink from top to bottom, so that the clamp ring is used for absorbing excessive heat and exerting additional upsetting action on the additive to promote metallurgical bonding.
In some of these embodiments, the resin bar extrusion mechanism further comprises a lead screw, a slide table, a transfer seat, a first motor, and a carriage. The lead screw is installed on first support frame to can rotate around vertical line. The sliding table is arranged on the screw rod and can vertically move along with the rotation of the screw rod. The conversion seat is fixedly connected with the sliding table. The first motor is installed on the first support frame, and the drive end of the first motor is fixedly connected with the end part of the screw rod. The sliding frame is used for installing the supporting cylinder and is fixedly connected with the conversion seat.
In some of these embodiments, the prepreg layup mechanism further comprises a carrier roller, a second motor, and a belt. The carrier roller is installed on the second support frame, and the carrier roller supplies the conveyer belt to wind to establish. The second motor is mounted on the second support frame. The belt is wound on the driving end of the second motor and the carrier roller.
In some of these embodiments, the prepreg layup mechanism further comprises a third motor, a rotating rod, and a meshing gear. The center line of the third motor extends vertically, and the third motor is arranged on the sliding frame. The rotary rod is transversely arranged, one end of the rotary rod is fixedly connected with the second supporting frame, and the other end of the rotary rod is arranged on the sliding frame and can rotate around the vertical line. The central line of the meshing gear extends vertically, and the other end of the rotating rod is meshed and connected with the driving end of the motor by the meshing gear.
In some of these embodiments, the prepreg layup mechanism further comprises a steering engine and a blade. The steering engine is installed on the second support frame. The blade is installed on the steering engine, and can cut the prepreg at the output end of the conveyer belt under the drive of the steering engine.
In some embodiments, the prepreg layering mechanism further comprises vortex tubes, the vortex tubes comprise two, the two vortex tubes are transversely arranged, the two vortex tubes are mounted on the second support frame and are respectively arranged on two sides of the output end of the conveyor belt, and the two vortex tubes convey cold air on two sides of the additive tissue in the process of adding materials to balance heating of the additive tissue.
The embodiment of the application also adopts a fiber reinforced thermoplastic resin matrix composite friction additive manufacturing method adopting the fiber reinforced thermoplastic resin matrix composite friction additive manufacturing device, and the method comprises the following steps: the fiber reinforced thermoplastic resin matrix composite friction additive manufacturing device is assembled on a machine tool, and bars are inserted into the shaft sleeve. The plate material is selected as a base plate, and the base plate is fixed on a machine tool workbench. And setting the distance between the shaft sleeve and the lower end surface of the bar stock according to the thickness of the additive layer. And starting a machine tool motor to drive the bar stock and the shaft sleeve to rotate. And then the machine head is lowered, and the lower end of the bar is heated and softened after friction heat is generated between the lower end surface of the bar and the base plate. Then the machine tool head feeds along a preset direction, the bar stock rubs on the upper surface of the base plate, the heated and softened bar stock is left on the base plate to form an additive layer, meanwhile, the first motor is started, the sliding table drives the conversion seat and the sliding frame to move upwards, the supporting cylinder and the shaft sleeve are driven to move upwards, the bar stock is extruded downwards relatively, meanwhile, the second motor is started, the conveying belt is driven to rotate around the carrier roller, and under the action of the conveying belt, the prepreg is laid on the additive layer to form an additive tissue. Taking the current material-increasing tissue as a new substrate, and repeating the steps until the preset requirement is met.
In some embodiments, the first motor is started and the third motor is started, the rotating rod is driven to rotate through the meshing gear, and the second supporting frame is rotated to a preset angle.
The fiber reinforced thermoplastic resin matrix composite friction additive manufacturing device comprises a resin bar extruding mechanism and a prepreg layering mechanism. The resin bar extrusion mechanism comprises a first supporting frame and a supporting cylinder arranged on the first supporting frame, the supporting cylinder can move vertically, the supporting cylinder comprises a shaft sleeve, the central line of the shaft sleeve extends vertically and can rotate around a vertical line, the lower end of the shaft sleeve forms the lower end of the supporting cylinder, the shaft sleeve can be used for enabling bars to penetrate vertically and rotate around the vertical line synchronously with the bars, the lower end of the shaft sleeve can generate heat through friction with the additive, softened end bars can flow radially and are laid on the additive layer, and the shaft sleeve can move upwards relative to the bars under the driving of the supporting cylinder so that the bars are extruded downwards relatively. The prepreg laying mechanism comprises a second support frame connected with the first support frame, and a winding drum, a conveying belt and a supporting plate which are respectively arranged on the second support frame, wherein the central line of the winding drum extends longitudinally and can rotate around the longitudinal line, the winding drum is used for winding prepreg, the supporting plate is transversely arranged, the supporting plate supports the prepreg, the conveying belt can be transversely driven and is positioned above the supporting plate, the output end face of the conveying belt faces the direction of the shaft sleeve, the prepreg entering between the supporting plate and the conveying belt is extruded by the supporting plate and the conveying belt, and the conveying belt is used for conveying the prepreg to an additive so as to lay the prepreg on the additive. The device of the application can realize friction material increase of the fiber reinforced thermoplastic composite material by arranging the resin bar extrusion mechanism and the prepreg layering mechanism, and can keep good metallurgical connection effect of material increase tissues while avoiding defect generation such as pores and interlayer cracks, so as to obtain a high-precision and high-performance fiber reinforced thermoplastic composite material structural member.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic illustration of an additive process for friction additive manufacturing of a fiber reinforced thermoplastic resin matrix composite in accordance with an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a friction additive manufacturing apparatus for fiber reinforced thermoplastic resin matrix composites according to an embodiment of the present disclosure;
FIG. 3 is a schematic view of a supporting cylinder according to an embodiment of the present disclosure;
FIG. 4 is a schematic view of a prepreg layup mechanism according to an embodiment of the present application;
FIG. 5 is a schematic view of a resin bar extrusion mechanism according to an embodiment of the present disclosure;
FIG. 6 is a schematic diagram illustrating the installation of a friction additive manufacturing device for fiber reinforced thermoplastic resin matrix composite materials and a machine tool according to an embodiment of the present application;
FIG. 7 is a schematic diagram of a substrate having a micro-hole array according to an embodiment of the present disclosure;
FIG. 8 is a schematic diagram of a structure with a slot array on a substrate according to an embodiment of the present disclosure;
FIG. 9 is a schematic diagram illustrating the installation of a friction additive manufacturing device for fiber reinforced thermoplastic resin matrix composites and a machine tool according to a second embodiment of the present disclosure;
fig. 10 is a schematic cross-sectional view of a fiber reinforced thermoplastic resin matrix composite (nylon 66) friction additive manufacturing material in accordance with example two of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
Example 1
Referring to fig. 1-8, embodiments of the present application provide a fiber reinforced thermoplastic resin matrix composite friction additive manufacturing apparatus 1 comprising a resin bar extrusion mechanism and a prepreg layup mechanism.
The resin bar extruding mechanism comprises a first supporting frame 103, a supporting cylinder 106, a screw rod 121, a sliding table 120, a conversion seat 119, a first motor 102 and a sliding frame 104.
The first support frame 103 is mounted on the axlebox 201 of the machine tool 2.
The support cylinder 106 is mounted on the first support frame 103 and is movable in the vertical direction. Support cylinder 106 includes a hub 1061, a cylinder 1069, an upper cover 1062, a lower cover 1065, an upper confinement ring 1068, a lower confinement ring 1066, a bearing 1064, and a clamp ring 1067.
The central line of the shaft sleeve 1061 extends vertically and can rotate around a vertical line, the lower end of the shaft sleeve 1061 forms the lower end of the supporting cylinder 106, so that the shaft sleeve 1061 can be used for the bar 3 to vertically penetrate through and rotate around the vertical line synchronously with the bar 3, the lower end of the shaft sleeve 1061 can generate heat through friction with the additive, the softened end bar 3 can radially flow along the shaft sleeve and is laid on the additive layer, and the shaft sleeve 1061 can move upwards relative to the bar 3 under the driving of the supporting cylinder 106, so that the bar 3 is extruded downwards relatively. The inner diameter of the sleeve 1061 is 0-0.5. 0.5mm greater than the diameter of the bar 3, and the outer diameter of the sleeve 1061 is 1-50 mm greater than the diameter of the bar 3. Shaft sleeve 1061 is coaxial with bar 3. The side hole at the lower end of the shaft sleeve 1061 is connected with the bar 3 by a tightening screw and is fixed. The end of sleeve 1061 may be rounded to facilitate material flow. The boss 1061 is journaled up and down.
In this embodiment, bar 3 is coaxial with the shank of machine tool 2. The upper end of the bar stock 3 is fixed at the handle of the machine tool 2 (robot). Under the above conditions, bar 3 drives sleeve 1061 to rotate synchronously.
Barrel 1069 is sleeved outside of sleeve 1061.
The upper cover 1062 has an upper opening that communicates with the cavity of the sleeve 1061, and the upper cover 1062 is disposed over the upper end of the cylinder 1069 and secured thereto by a set screw 1063.
The lower cylinder cover 1065 has a lower opening through which the shaft sleeve 1061 passes, and the lower cylinder cover 1065 is disposed at the lower end of the cylinder 1069 and is fixed by a fastening screw 1063.
An upper confinement ring 1068 is positioned around the exterior of the hub 1061, and the upper confinement ring 1068 is positioned within the cavity of the barrel 1069 and mounted to the upper cover 1062. The upper confinement rings 1068 have upper bearing 1064 mounting slots thereon.
A lower confinement ring 1066 is positioned around the exterior of the hub 1061, with the lower confinement ring 1066 positioned within a cavity of the barrel 1069 and mounted to the lower cap 1065. The lower confinement ring 1066 has a lower bearing 1064 mounting slot therein.
The bearing 1064 includes an upper bearing 1064 and a lower bearing 1064, the upper bearing 1064 and the lower bearing 1064 are both sleeved outside the shaft sleeve 1061, the upper end surface of the upper bearing 1064 abuts against the lower end surface of the upper journal of the bearing 1064, the upper bearing 1064 is mounted on the upper limiting ring 1068, the lower bearing 1064 is mounted on the lower limiting ring 1066, and the lower end surface of the lower bearing 1064 abuts against the upper end surface of the lower journal of the bearing 1064. The bearing 1064 is a tapered roller bearing 1064.
The clamp ring 1067 is sleeved outside the shaft sleeve 1061, the clamp ring 1067 is arranged below the supporting cylinder 106 and is mounted on the lower cylinder cover 1065, and the clamp ring 1067 is tapered to shrink gradually from top to bottom, so that the clamp ring 1067 is used for absorbing redundant heat and applying additional upsetting action to the additive to promote metallurgical bonding. The clamp ring 1067 is a circular ring with an outer diameter 2-40 mm greater than the sleeve 1061 and an inner diameter 0-0.5. 0.5mm greater than the sleeve 1061. Under the above conditions, the resin bar 3 at the bottom of the supporting cylinder 106 is extruded and has a bar 3, a shaft sleeve 1061 and a clamp ring 1067 at the contact part with the additive material, the bar 3 and the shaft sleeve 1061 can rotate coaxially and synchronously, and the clamp ring 1067 cannot rotate coaxially. The clamp ring 1067 provides additional heat absorption and upsetting, suppresses uneven friction heat generation of the bar, and has a structure capable of realizing metallurgical bonding and mechanical interlocking bonding reinforcement between the softening layer and the base layer of the bar 3.
The screw rod 121 is mounted on the first support frame 103 and is rotatable about a vertical line. The screw 121 is a ball screw 121.
The sliding table 120 is mounted on the screw rod 121 and is vertically movable with the rotation of the screw rod 121.
The conversion seat 119 is fixedly connected with the sliding table 120.
The first motor 102 is mounted on the first support frame 103, and the driving end of the first motor 102 is fixedly connected with the end part of the screw rod 121.
The carriage 104 is fixedly mounted to the support cylinder 106 via a fastening screw 1063 and fixedly coupled to the switch block 119. The carriage 104 is moved by the cooperation of the conversion base 119, the sliding table 120 and the screw rod 121 under the control of the first motor 102. The conversion seat 119 is connected with the first motor 102 through a Z-direction sliding table 120 and a lead screw 121 and is driven by the first motor to vertically move. The carriage 104 is bolted to the shift block 119.
The prepreg layup mechanism includes a second support frame 109, a reel 113, a pallet 110, a conveyor belt 111, a carrier roller 105, a second motor 112, a belt 117, a third motor 115, a rotating rod 114, a meshing gear 116, a steering engine 108, a blade 101, and a swirl tube 107.
The second support 109 is connected to the first support 103.
A spool 113 is mounted on the second support frame 109, the spool 113 having a centre line extending longitudinally and being rotatable about the longitudinal line, the spool 113 being provided for winding prepreg (i.e. an industrialised prepreg composite tape). By the extension length of the positioning bolt 118 on the second supporting frame 109, the prepreg reels 113 with different widths can be fixed. The prepreg is used as a raw material, so that the good impregnation requirements of different types of resins and different types of fibers can be met.
The pallet 110 is mounted on the second support frame 109, the pallet 110 being arranged transversely, the pallet 110 supporting the prepreg. The pallet 110 is bolted to the second support frame 109 and its height is adjustable to accommodate compaction and transport of prepregs of different thicknesses.
The conveyor belt 111 is mounted on the second support frame 109, the conveyor belt 111 is capable of driving in a transverse direction and is located above the pallet 110, and an output end of the conveyor belt 111 faces a direction of the shaft sleeve 1061, so that the prepreg entering between the pallet 110 and the conveyor belt 111 is extruded by the pallet 110 and the conveyor belt 111, and the conveyor belt 111 brings the prepreg out and onto the additive material through friction, so that the prepreg is laid onto the additive material. The gap between the conveyor belt 111 and the pallet 110 is the prepreg thickness.
The idler roller 105 is mounted on the second support frame 109, and the idler roller 105 is wound by a conveyor belt 111.
The second motor 112 is mounted on the second support frame 109.
A belt 117 is wound around the drive end of the second motor 112 and the idler roller 105. Under the above conditions, the second motor 112 drives the conveyor belt 111 to move through the belt 117.
The third motor 115 is mounted on the carriage 104 with its centerline extending vertically.
The rotating rod 114 is transversely arranged, one end of the rotating rod 114 is fixedly connected with the second supporting frame 109, such as a bolt for fastening, and the other end of the rotating rod 114 is mounted on the sliding frame 104 and can rotate around a vertical line.
Under the above conditions, the third motor 115 and the second support frame 109 move in the vertical direction with the carriage 104 to accommodate fiber layering at different heights of the additive.
The central line of the meshing gear 116 extends vertically, and the meshing gear 116 is used for meshing and connecting the other end of the rotating rod 114 with the driving end of the motor. The above arrangement makes the rotary rod 114 perform circular motion under the drive of the main shaft of the third motor 115, and further drives the second supporting frame 109 to rotate for a certain angle to meet the different layering angle requirements of the prepreg, so as to realize the self-adaptive angle.
Steering engine 108 is mounted on a second support frame 109.
The blade 101 is mounted on the steering engine 108, and can cut prepreg at the output end of the conveyor belt 111 under the drive of the steering engine 108. Under the above conditions, the prepreg is sent out under the action of the conveyor belt 111 and laid on the extruded resin layer until the laying is finished, and the steering engine 108 can be started under the control of a program to drive the blade 101 to cut the prepreg.
The vortex tube 107 comprises two vortex tubes 107, the two vortex tubes 107 are transversely arranged, the two vortex tubes 107 are mounted on the second support frame 109 and are respectively arranged on two sides of the output end of the conveyor belt 111, and the two vortex tubes 107 are used for conveying cold air on two sides of an additive tissue in the process of adding materials so as to balance the heating of the additive tissue. When the thermoplastic resin matrix composite material for large-size/high-efficiency material addition is manufactured in an additive way, the linear speed difference between the middle and the edge of the bar in the material addition process causes low heat input in the middle of the bar, and the material is harder; the heat input at the edge of the bar is high, and the material is softer. The deposited layer is wider and the temperature distribution is uneven. In addition, the resin melting process is long, cooling is slow, and heat generation and heat transfer of the oversized bar material adding process are adversely affected. The vortex tube 107 is adopted to send cool air to the two sides of the material-increasing structure, the two sides of the material-increasing wall are quenched to solve the problem of uneven heat input, and a high-precision thermoplastic resin-based composite material component is obtained.
The fiber reinforced thermoplastic resin-based composite material may be a carbon fiber reinforced polyetheretherketone composite material.
The working principle of the device 1 of the present application is as follows: the consumable bar 3 is matched with the hollow shaft sleeve 1061 for friction material addition, in particular, resin bar 3 with different melting points is inserted into a tool handle of a machine tool 2 (robot) to be fixed, so that the resin bar 3 can move in three dimensions and is provided with upsetting force, the material adding device 1 is assembled on a machine tool 2 (robot) head to enable the material adding device to move in three dimensions synchronously with the head/bar 3, the shaft sleeve 1061 is used for processing a cavity with the same size as the bar 3, and after the bar 3 is placed in the shaft sleeve 1061, a tightening screw is placed in a side hole at the lower end of the shaft sleeve 1061 to fix the resin bar 3. The downward moving shaft sleeve 1061 is spaced from the base plate 4 by a certain distance, and after the motor of the machine tool 2 (robot) is started, the tool handle drives the bar 3 to rotate at a high speed, and then the bar 3 is pushed to move downward under the action of the numerical control machine tool 2 (robot). The bar 3 is extruded to rub against the base plate 4 to generate frictional heat. The bar 3 softens and metallurgically bonds with the base plate 4 under the influence of the frictional heat. Shaft sleeve 1061 is in contact with the deposited material and further generates heat. Subsequently, bar 3 is continuously extruded and deposited onto substrate 4. The bar 3 continues to move downwards, at the same time, the high-speed rotating shaft sleeve 1061 and the bar 3 move synchronously along the set track, and softened materials are continuously accumulated to construct components, so that the movement of the numerical control machine 2 (robot) is realized, and the large and complex thermoplastic resin-based composite structural member is constructed in a layer-by-layer accumulation mode.
In summary, the device 1 of the application can realize friction material addition of the fiber reinforced thermoplastic composite material, can avoid defects such as pores and interlayer cracks, and can simultaneously keep good metallurgical connection effect of material addition tissues, and can obtain a high-precision and high-performance fiber reinforced thermoplastic composite material structural member.
The embodiment of the application also adopts a fiber reinforced thermoplastic resin matrix composite friction additive manufacturing method adopting the fiber reinforced thermoplastic resin matrix composite friction additive manufacturing device 1, and comprises the following steps:
and (1) assembling the fiber reinforced thermoplastic resin matrix composite friction additive manufacturing device 1 on a CNC machine tool 2 (or a robot), inserting a bar 3 into the shaft sleeve 1061 and matching with the shaft sleeve 1061, and inserting a tightening screw into the side surface of the lower end of the shaft sleeve 1061 to fix the bar 3. According to the fiber reinforced thermoplastic resin matrix composite structural member to be obtained, a proper plate is selected as the base plate 4, and the base plate 4 is fixed on the workbench of the machine tool 2.
In the step (1), lines or micropores are processed on the surface of the substrate 4 to improve roughness, so as to improve mechanical interlocking between the additive structure and the substrate material, and improve metallurgical bonding capability of the additive structure on the upper surface of the substrate 4. The thickness of the base plate 4 is 1-50 mm, the base plate 4 and the bar 3 are made of the same material, and a part of high-melting-point material is selected as the base plate 4. In a word, the melting point of the bar stock 3 is less than the melting point of the base plate 4, and the hardness of the bar stock 3 is less than the hardness of the base plate 4, so that all friction additives of the thermoplastic resin matrix composite materials can be met.
The bar 3 can adopt a cylindrical or square bar 3, and the side surface milling plane of the bar 3 can be fixed by a screw for tightening, the plane width is 2-4 mm, and the diameter of the bar 3 is required to be smaller than the outer diameter of the shaft sleeve 1061. The bar 3 may contain randomly distributed reinforcing fibers within the bar 3 and the bar 3 is ground and uniformly distributed in the resin matrix during the friction build up process.
And (2) setting the spacing between the shaft sleeve 1061 and the lower end face of the bar stock 3 according to the designed thickness of the additive layer 5. The motor of the machine tool 2 is started to drive the bar 3 and the shaft sleeve 1061 to rotate. Then lowering the head 202, and after the lower end face of the bar 3 contacts with the base plate 4 and generates heat by friction, the lower end of the bar 3 is heated and softened. Then the machine head 202 feeds in a preset direction, the bar 3 rubs on the upper surface of the base plate 4, the heated and softened bar 3 is metallurgically combined with the base plate 4 and is left on the base plate 4 to form an nth additive layer 5, meanwhile, the first motor 102 is started, the sliding table 120 drives the conversion seat 119 and the sliding frame 104 to move upwards, the supporting cylinder 106 and the shaft sleeve 1061 are driven to move upwards at the same speed, the bar 3 is extruded downwards relatively, meanwhile, the second motor 112 is started, the conveying belt 111 is driven to rotate around the carrier roller 105, and under the action of the conveying belt 111, the prepreg is laid on the nth additive layer 5 to form an nth additive tissue.
In the step (2), the distance between the shaft sleeve 1061 and the lower end face of the bar 3 is set according to the designed thickness of the additive layer 5 of 0.5-7.5 mm (e.g. 0.5 mm). The shaft sleeve 1061 and the bar 3 are driven to rotate at 100-10000 r/min (10000 r/min). The handpiece 202 is fed in a predetermined direction of 1 to 2000mm/min (e.g., 2000 mm/min). The pressing speed of the bar stock 3 is 0.1-100 mm/min (such as 100 mm/min). The sliding table 120 drives the conversion seat 119 and the sliding frame 104 to move upwards at a speed of 0.2-200 mm/min (such as 200 mm/min) (bar 3 pressing speed+additive speed).
In the step (2), the conveyor belt 111 is driven to rotate around the carrier roller 105 at a speed of 1-2000 mm/min (e.g. 2000 mm/min). Under the friction force of the conveyor belt 111, the prepreg is sent out at a speed of 1-2000 mm/min (such as 2000 mm/min) and laid on the additive layer 5 being added.
Simultaneously with the starting of the first motor 102, the third motor 115 is started, the torque is transmitted through the meshing gear 116 to drive the rotating rod 114 to rotate, and the second supporting frame 109 rotates to a preset angle. For example, the second support 109 is rotated to a desired angle at a speed of 1-100 rad/s (e.g., 100 rad/s).
In the step (2), the height of the additive layer 5 is the distance between the shaft sleeve 1061/the compression ring 1067 and the additive surface, and the height of the additive layer 5 can be achieved by controlling the shaft sleeve 1061/the compression ring 1067 through a machine tool 2 (robot) PLC program. In the process of the material adding movement of the bar 3, the bottom material of the bar 3 is softened under the action of friction heat, the end material of the bar 3 leaves the bar 3 to be remained on the base plate 4 under the upsetting action of the shaft sleeve 1061 and the compression ring 1067, and enters the base plate 4 under the action of the pressure of the shaft sleeve 1061 and the compression ring 1067, and plastic flow is generated under the double actions of friction heat and upsetting and is extruded between the base plate 4 to form an anchor-like structure and good metallurgical bonding. The feeding (material adding) speed of the machine head/bar stock 3 is 5-200 mm/min, and cooling and secondary processing are not needed between every two layers. The upsetting force of the bar stock 3 is beneficial to strengthening the bonding between the prepreg and the resin layer when the prepreg is laid for resin material addition, and meanwhile, the pores between the material addition tissues are eliminated, and the upsetting force can strengthen the metallurgical bonding capability of the resin and the fiber and improve the property of the material addition tissues.
And (3) taking the current n-th layer of additive tissue as a new substrate 4, and repeating the step (2) until the preset requirement is met.
The step (3) is that the n+1 layer of resin additive is carried out by taking the n layer of additive structure as a new matrix. At this time, the softened part of the bar 3 is uniformly smeared on the added material tissue under the driving of the shaft sleeve 1061, the thickness H (for example, 0.5-mm) of the layer is thick, and then prepregs with different angles are laid.
Example two
The only difference from the first embodiment is that in this embodiment, the boss 1061 is coaxial with the shank of the machine tool 2. The upper end of the sleeve 1061 is fixed to the shank of the machine tool 2 (robot). Under the above conditions, the shaft sleeve 1061 can rotate at a high speed on the bar 3 and rub against the base plate, and the end of the shaft sleeve is plasticized and metallurgically combined with the base plate. Simultaneously, the ejector rod 6 passes through the shaft sleeve 1061 to extrude the bar 3, and the bar 3 moves downwards under the acting force of the ejector rod 6 so as to extrude the bar. The ejector rod 6 is arranged on the machine head 202 by a high-power motor 7, and enough downward pressure of the ejector rod 6 is provided by high torque. At the same time, the head 202 moves in three dimensions, allowing additive manufacturing of the resin bar 3, the cross-section of the components of which is shown in fig. 10.
The device 1 and the method have the beneficial effects that:
(1) Compared with the existing additive manufacturing technology, based on the carrying of the numerical control machine tool 2 (robot), the method can add materials in a six-degree-of-freedom space, ensure that the fiber orientation is suitable for a load path, and obtain isotropic/anisotropic materials. And manufacturing a component of fiber powder, short fiber and continuous fiber reinforced thermoplastic composite material.
(2) Compared with a friction material adding mode that the ejector rod passes through the hollow main shaft to push the bar with the same size to extrude, the control requirement on the numerical control machine tool 2 (robot) is higher, the equipment can only be used for friction material adding, and the problems of damage of the structural rigidity of the main shaft, bar expansion and blockage and the like are difficult to avoid, the design can be based on the numerical control machine tool 2 (robot) to be equipped in an auxiliary equipment mode so as to realize the friction material adding without affecting other functions of the numerical control machine tool 2 (robot), and the device has outstanding economic benefits. Meanwhile, based on direct friction deposition of the bar 3 and heat generation control of the shaft sleeve 1061, additive manufacturing of thermoplastic resin-based composite material components with different sizes can be achieved, and the manufacturing efficiency is high.
(3) Compared with the conventional melting 3D printing technology, the friction deposition (not exceeding the diameter of the shaft sleeve 1061) of the large-size bar 3 can be realized in the friction build-up-based additive manufacturing, and the high-efficiency high-quality fiber layering, dipping and strengthening effects of the additive manufacturing structural member are improved by providing the continuous fiber reinforced thermoplastic resin matrix composite with the prepreg layering mechanism with the integration of self-adaption diameter/self-adaption fiber angle/automatic cutting.
(4) Compared with the traditional additive manufacturing mode of melting additive manufacturing and layer-by-layer powder coating bonding, the pressure of the compression ring 1067, the shaft sleeve 1061 and the bar 3 is favorable for driving the materials to move and providing triple upsetting effect, so that a compact and defect-free additive tissue is formed; compared with the friction additive manufacturing mode, the upsetting action of the compression ring 1067 and the shaft sleeve 1061 is also beneficial to further eliminating unfilled defects such as interlayer cracks and pores in the additive manufacturing process and inhibiting warping and layering configuration defects of the additive. In summary, the present application combines the effects of reinforcing material flow and metallurgical bonding to produce an additive member with good properties.
(5) Based on the friction additive of bar 3 and boss 1061, the fibers inside bar 3 are uniformly ground to form fiber powder, and the pressure provided by bar 3 and boss 1061 further enhances the impregnation effect and makes it uniformly distributed. The fiber powder has larger tissue modification and mechanical property improvement on the thermoplastic resin matrix. Compared with the traditional 3d technology, the evenly distributed fiber reinforced materials and good impregnation effect greatly improve the bearing strength of the material-increasing tissue, solve the problem of low bonding strength between fiber reinforced material resin and fiber materials and make the material-increasing material isotropic.
(6) In addition, in the layer-by-layer material adding process, the single-layer material adding material is regulated and controlled through the matching of the shaft sleeve 1061 and the compression ring 1067, so that the high-precision regulation and control of the material adding structure are realized, and the fiber reinforced thermoplastic resin matrix composite with high precision and high performance is manufactured.
(7) For the continuous fiber reinforced thermoplastic resin matrix composite material, a prepreg wire laying mechanism with a self-adaptive angle and an automatic cutting device is arranged in front of a bar 3, fiber laying is carried out according to the designed laying angle and track after each layer of resin is added, and resin matrix friction is carried out on the prepreg layer to build the continuous fiber reinforced thermoplastic resin matrix composite material component with high performance and isotropy/anisotropy.
(8) When the thermoplastic resin matrix composite material for large-size/high-efficiency material addition is manufactured in an additive way, the linear speed difference between the middle and the edge of the bar in the material addition process causes low heat input in the middle of the bar, and the material is harder; the heat input at the edge of the bar is high, and the material is softer. The deposited layer is wider and the temperature distribution is uneven. In addition, the resin melting process is long, cooling is slow, and heat generation and heat transfer of the oversized bar material adding process are adversely affected. Cold air is sent to two sides of the material-increasing structure by adopting vortex tube 107 and the like, and the two sides of the rapid cooling material-increasing wall solve the problem of uneven heat input and obtain a high-precision thermoplastic resin-based composite material component.
(9) The roughness of the base plate 4 is improved by designing lines, micropores and the like on the base plate 4, and the friction heat and the upsetting force provided by the bar 3 and the shaft sleeve 1061 act. The softened bar 3 material is driven to flow to the concave parts of the grains at a high speed, the softening, the deformation and the flow of the bar 3 are promoted, the metallurgical bonding and the metallurgical bonding with the substrate 4 are enhanced, and the connection of the first layer of material-increasing tissue and the substrate 4 is facilitated.
(10) Additive manufacturing based on friction build-up welding is widely adaptable to the following materials: compared with the conventional melting-based 3D printing mode which is difficult to print high-melting-point thermoplastic materials, the additive manufacturing method has no special requirements on additive manufacturing requirements of different types of thermoplastic resin matrix composite materials (polyether ether ketone, nylon, polyethylene and the like); the raw materials are simple to prepare, and simple square blocks or bar stock 3 can be used.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, this is for convenience of description and simplification of the description, but does not indicate or imply that the apparatus or element to be referred must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely used for illustration and are not to be construed as limitations of the present patent, and that the specific meaning of the terms described above may be understood by those of ordinary skill in the art according to the specific circumstances.
The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but is intended to cover any and all modifications, equivalents, and alternatives falling within the spirit and principles of the present application.
Claims (2)
1. A fiber reinforced thermoplastic resin matrix composite friction additive manufacturing device, comprising:
the resin bar extrusion mechanism comprises a first support frame and a support cylinder arranged on the first support frame, wherein the support cylinder can move vertically, the support cylinder comprises a shaft sleeve, the central line of the shaft sleeve extends vertically and can rotate around a vertical line, the lower end of the shaft sleeve forms the lower end of the support cylinder, the shaft sleeve can be used for enabling bars to vertically penetrate through and rotate around the vertical line synchronously with the bars, the lower end of the shaft sleeve can generate heat through friction with the additive, softened end bars can flow radially and are paved on the additive layer, and the shaft sleeve can move upwards relative to the bars under the driving of the support cylinder so that the bars are extruded downwards relatively;
the prepreg laying mechanism comprises a second support frame connected with the first support frame, a winding drum, a conveying belt and a supporting plate, wherein the winding drum, the conveying belt and the supporting plate are respectively arranged on the second support frame, the central line of the winding drum extends longitudinally and can rotate around a longitudinal line, the winding drum is used for winding prepreg, the supporting plate is transversely arranged, the supporting plate supports the prepreg, the conveying belt can transversely drive and is positioned above the supporting plate, the output end of the conveying belt faces the direction of the shaft sleeve, so that the prepreg entering between the supporting plate and the conveying belt is extruded by the supporting plate and the conveying belt, and the conveying belt brings the prepreg to the additive, so that the prepreg is laid on the additive;
wherein, the support section of thick bamboo still includes:
the cylinder body is sleeved outside the shaft sleeve;
the upper cylinder cover is provided with an upper opening communicated with the cavity of the shaft sleeve and is arranged at the upper end of the cylinder body;
the lower cylinder cover is provided with a lower opening for the shaft sleeve to penetrate through, and is arranged at the lower end of the cylinder body;
the upper limiting ring is sleeved outside the shaft sleeve, is arranged in the cavity of the cylinder body and is arranged on the upper cylinder cover;
the lower limiting ring is sleeved outside the shaft sleeve, is arranged in the cavity of the cylinder body and is arranged on the lower cylinder cover;
the bearing comprises an upper bearing and a lower bearing, wherein the upper bearing and the lower bearing are sleeved outside the shaft sleeve, the upper end face of the upper bearing is abutted against the lower end face of an upper shaft neck of the bearing, the upper bearing is arranged on the upper limiting ring, the lower bearing is arranged on the lower limiting ring, and the lower end face of the lower bearing is abutted against the upper end face of a lower shaft neck of the bearing;
the compression ring is sleeved outside the shaft sleeve, is arranged below the supporting cylinder, is arranged on the lower cylinder cover and is in a cone shape which gradually contracts from top to bottom, so that the compression ring is used for absorbing excessive heat and applying an additional upsetting effect to the additive to promote the metallurgical bonding of the additive;
the resin bar extrusion mechanism further comprises:
the screw rod is arranged on the first support frame and can rotate around a vertical line;
the sliding table is arranged on the screw rod and can vertically move along with the rotation of the screw rod;
the conversion seat is fixedly connected with the sliding table;
the first motor is arranged on the first support frame, and the driving end of the first motor is fixedly connected with the end part of the screw rod;
the sliding frame is used for installing the supporting cylinder and is fixedly connected with the conversion seat;
the prepreg layup mechanism further includes:
the carrier roller is arranged on the second supporting frame and is used for winding the conveyer belt;
the second motor is arranged on the second supporting frame;
the belt is wound on the driving end of the second motor and the carrier roller;
the prepreg layup mechanism further includes:
the center line of the third motor extends vertically, and the third motor is arranged on the sliding frame;
the rotating rod is transversely arranged, one end of the rotating rod is fixedly connected with the second supporting frame, and the other end of the rotating rod is arranged on the sliding frame and can rotate around a vertical line;
the central line of the meshing gear extends vertically, and the other end of the rotating rod is meshed and connected with the driving end of the motor by the meshing gear;
the prepreg layup mechanism further includes:
the steering engine is arranged on the second supporting frame;
the blade is arranged on the steering engine and can cut the prepreg at the output end of the conveyor belt under the drive of the steering engine;
the prepreg layup mechanism further includes:
the vortex tube comprises two vortex tubes which are transversely arranged, the two vortex tubes are mounted on the second supporting frame and are respectively arranged on two sides of the output end of the conveyor belt, and the two vortex tubes are used for conveying cold air on two sides of an additive tissue in the process of material increase so as to balance the heating of the additive tissue.
2. A method of friction additive manufacturing of a fiber reinforced thermoplastic resin-based composite material using the friction additive manufacturing apparatus of a fiber reinforced thermoplastic resin-based composite material of claim 1, comprising the steps of:
assembling a fiber reinforced thermoplastic resin matrix composite friction additive manufacturing device on a machine tool, and inserting a bar into the shaft sleeve; selecting a plate as a base plate, and fixing the base plate on a machine tool workbench;
setting the distance between the shaft sleeve and the lower end face of the bar according to the thickness of the additive layer; starting a machine tool motor to drive the bar stock and the shaft sleeve to rotate; then the machine head is lowered, and after the lower end face of the bar stock rubs with the base plate to generate heat, the lower end of the bar stock is heated and softened; then the machine tool head feeds in a preset direction, the bar stock rubs on the upper surface of the base plate, the bar stock softened by heating is left on the base plate to form an additive layer, meanwhile, the first motor is started, the sliding table drives the conversion seat and the sliding frame to move upwards, the supporting cylinder and the shaft sleeve are driven to move upwards, the bar stock is extruded downwards relatively, meanwhile, the second motor is started, the conveying belt is driven to rotate around the carrier roller, and under the action of the conveying belt, the prepreg is laid on the additive layer to form an additive tissue; taking the current material adding tissue as a new substrate, and repeating the steps until the preset requirement is met;
and when the first motor is started, the third motor is started, the rotating rod is driven to rotate through the meshing gear, and the second supporting frame rotates to a preset angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310969482.0A CN116922811B (en) | 2023-08-02 | 2023-08-02 | Device and method for manufacturing fiber reinforced thermoplastic resin matrix composite material through friction additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310969482.0A CN116922811B (en) | 2023-08-02 | 2023-08-02 | Device and method for manufacturing fiber reinforced thermoplastic resin matrix composite material through friction additive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116922811A CN116922811A (en) | 2023-10-24 |
| CN116922811B true CN116922811B (en) | 2024-01-30 |
Family
ID=88377140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310969482.0A Active CN116922811B (en) | 2023-08-02 | 2023-08-02 | Device and method for manufacturing fiber reinforced thermoplastic resin matrix composite material through friction additive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116922811B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107914392A (en) * | 2017-12-05 | 2018-04-17 | 西安交通大学 | Thermosetting resin based composites electronic beam curing LOM forming methods and device |
| CN109996657A (en) * | 2016-11-29 | 2019-07-09 | 塞特工业公司 | The automated manufacturing of fiber preform |
| CN111479673A (en) * | 2017-12-22 | 2020-07-31 | 慕贝尔碳纤维技术有限公司 | Fiber tape laying system |
| CN115415541A (en) * | 2022-07-26 | 2022-12-02 | 南京工业大学 | Hard phase reinforced metal matrix composite material manufactured based on synchronous wire feeding and powder feeding friction stir material increase and preparation method thereof |
| CN116000321A (en) * | 2022-12-16 | 2023-04-25 | 中车工业研究院有限公司 | Friction deposition additive manufacturing equipment and method thereof |
-
2023
- 2023-08-02 CN CN202310969482.0A patent/CN116922811B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109996657A (en) * | 2016-11-29 | 2019-07-09 | 塞特工业公司 | The automated manufacturing of fiber preform |
| CN107914392A (en) * | 2017-12-05 | 2018-04-17 | 西安交通大学 | Thermosetting resin based composites electronic beam curing LOM forming methods and device |
| CN111479673A (en) * | 2017-12-22 | 2020-07-31 | 慕贝尔碳纤维技术有限公司 | Fiber tape laying system |
| CN115415541A (en) * | 2022-07-26 | 2022-12-02 | 南京工业大学 | Hard phase reinforced metal matrix composite material manufactured based on synchronous wire feeding and powder feeding friction stir material increase and preparation method thereof |
| CN116000321A (en) * | 2022-12-16 | 2023-04-25 | 中车工业研究院有限公司 | Friction deposition additive manufacturing equipment and method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116922811A (en) | 2023-10-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10259160B2 (en) | Wear resistance in 3D printing of composites | |
| WO2016041449A1 (en) | Fused deposition 3d printer and printing method therefor | |
| EP3402653B1 (en) | Embedding 3d printed fiber reinforcement in molded articles | |
| EP1658172B1 (en) | Multiple head automated composite laminating machine for the fabrication of large barrel section components | |
| RU2662015C1 (en) | Print head for additive production | |
| CN104162992A (en) | 3D printer using industrial raw material | |
| CN106808707B (en) | Production process and production line for continuously winding glass fiber reinforced plastic tube | |
| CN112140533B (en) | 3D printing device and method for compounding continuous fibers and particle matrix material | |
| CN106976218B (en) | Extrusion molding method and device for small-caliber pipe without weld mark | |
| CN112606432B (en) | A tape laying device for combined material preimpregnation area shaping manufacturing | |
| CN113927151B (en) | Characteristic friction stir material increase manufacturing method and equipment for reinforcing rib of thin-wall cylinder structure | |
| US20170326861A1 (en) | Composite laminated object manufacturing using selectively inhibited lamination | |
| CN113103585B (en) | 3D printer head capable of laying continuous fiber web and printing method | |
| CN116922811B (en) | Device and method for manufacturing fiber reinforced thermoplastic resin matrix composite material through friction additive | |
| CN116749550B (en) | Automatic fiber laying device for revolving body component and control method | |
| EP3936307A1 (en) | Methods and systems for producing boat components | |
| CN114654722A (en) | Continuous fiber winding additive manufacturing method with auxiliary heating and follow-up compaction | |
| CN117021609B (en) | 3D printing device and method for thermoplastic resin matrix composite based on advanced tape laying | |
| CN111745997B (en) | Z-pin implantation device fused with automatic composite material laying device and implantation method | |
| CN211591315U (en) | Double-screw type material extrusion device for 3D printing | |
| EP1762357B1 (en) | Compression moulding method and device for making preforms for composite structures of an aircraft | |
| RU2776061C2 (en) | Method for manufacture of products reinforced with continuous fiber, using additive technologies, and printing head of 3d printer for its implementation | |
| CN116811238B (en) | 3D printing head with laser preheating and in-situ compaction and operation method thereof | |
| US20240100787A1 (en) | Method of producing preform and method of molding composite material | |
| CN116494528A (en) | CFRP-based material increasing and decreasing all-in-one machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |