CN114850652B - Friction material adding device and friction material adding method - Google Patents
Friction material adding device and friction material adding method Download PDFInfo
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- CN114850652B CN114850652B CN202210690895.0A CN202210690895A CN114850652B CN 114850652 B CN114850652 B CN 114850652B CN 202210690895 A CN202210690895 A CN 202210690895A CN 114850652 B CN114850652 B CN 114850652B
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- shaft
- material adding
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- 239000002783 friction material Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 101
- 230000007423 decrease Effects 0.000 claims abstract description 8
- 239000000654 additive Substances 0.000 claims description 33
- 230000000996 additive effect Effects 0.000 claims description 28
- 239000000758 substrate Substances 0.000 claims description 20
- 238000001125 extrusion Methods 0.000 claims description 17
- 238000005096 rolling process Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 15
- 229910000691 Re alloy Inorganic materials 0.000 claims description 3
- 229910001315 Tool steel Inorganic materials 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- DECCZIUVGMLHKQ-UHFFFAOYSA-N rhenium tungsten Chemical compound [W].[Re] DECCZIUVGMLHKQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000003000 extruded plastic Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000007790 solid phase Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 7
- 229910001094 6061 aluminium alloy Inorganic materials 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/26—Auxiliary equipment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention provides a friction material adding device and a friction material adding method, and relates to the technical field of solid phase material adding. The friction material adding device comprises a friction shaft, a pushing mechanism, a friction shaft sleeve, a first driving mechanism and a second driving mechanism, wherein the friction shaft sleeve is sleeved on the outer side of the friction shaft and is coaxially arranged with the friction shaft to form a containing cavity, the pushing mechanism and the friction shaft are coaxially arranged and pass through the friction shaft, the pushing mechanism can selectively move up and down inside and outside the containing cavity, the first driving mechanism is connected with the friction shaft, the second driving mechanism is connected with the friction shaft sleeve, the friction shaft comprises a clamping part, a friction part and a material guiding part which are sequentially connected from top to bottom, the clamping part is connected with the first driving mechanism, the diameter of the friction part is larger than that of the clamping part and gradually increases along the direction from the clamping part to the material guiding part, and the diameter of the material guiding part gradually decreases along the direction from the clamping part to the material guiding part. The solid-phase material-adding device can realize solid-phase material adding, and has the advantages of wide material application range, high efficiency and excellent material-adding layer tissue performance.
Description
Technical Field
The invention relates to the technical field of solid phase material addition, in particular to a friction material addition device and a friction material addition method.
Background
Additive manufacturing is a technology for realizing part manufacturing by gradually accumulating materials, and the traditional additive manufacturing method mainly comprises laser additive manufacturing, arc additive manufacturing, plasma additive manufacturing and the like, and has been widely applied to the fields of aerospace and the like. However, the traditional material-adding method belongs to melting material-adding, and has the defects of air holes, coarse structure grains, large deformation, low material-adding efficiency and the like.
In view of this, the present application is specifically proposed.
Disclosure of Invention
The invention aims at providing a friction material adding device and a friction material adding method, which can realize solid phase material adding, and have the advantages of wide material application range, high efficiency, excellent performance of an material adding layer, high efficiency, no pollution, small deformation and the like, and greatly reduce the size limit of an material adding initial material.
Embodiments of the invention may be implemented as follows:
in a first aspect, the present invention provides a friction material adding device, including a friction shaft, a pushing mechanism, a friction shaft sleeve, a first driving mechanism and a second driving mechanism, where the friction shaft sleeve is sleeved on the outer side of the friction shaft and is coaxially arranged with the friction shaft, a containing cavity for containing material adding is formed between the friction shaft and the friction shaft sleeve, the pushing mechanism is coaxially arranged with the friction shaft and is penetrated by the friction shaft, the pushing mechanism can selectively move up and down in the containing cavity, the first driving mechanism is connected with the friction shaft to drive the friction shaft to rotate, the second driving mechanism is connected with the friction shaft sleeve to drive the friction shaft sleeve to rotate, the friction shaft includes a clamping part, a friction part and a material guiding part, the diameter of the clamping part is larger than that of the clamping part and gradually increases along the direction from the clamping part to the material guiding part, and the diameter of the material guiding part gradually decreases along the clamping part.
In an alternative embodiment, the material pushing mechanism is cylindrical, a through mounting hole is formed in the material pushing mechanism, and the friction shaft penetrates through the mounting hole.
In an alternative embodiment, a material disturbing member is arranged in the friction shaft sleeve, and protrudes out of the side wall of the friction shaft sleeve.
In an alternative embodiment, the material disturbing pieces are multiple and are uniformly distributed along the axial direction and the radial direction of the friction shaft sleeve.
In an alternative embodiment, the inner surface of the friction bushing is a roughened surface.
In an alternative embodiment, the second driving mechanism comprises a transmission bearing, a driving piece and a belt, a rotating wheel is arranged on a rotating shaft of the driving piece, the belt is sleeved on the transmission bearing and the rotating wheel, the clamping part of the friction shaft penetrates through an inner ring of the transmission bearing, and an outer ring of the transmission bearing is fixedly connected with the friction shaft sleeve.
In an alternative embodiment, the friction sleeve comprises a sleeve portion and an extrusion rolling portion, the sleeve portion is cylindrical, the diameter of the extrusion rolling portion gradually decreases along the direction from the sleeve portion to the extrusion rolling portion, and the height of the extrusion rolling portion is smaller than the height of the material guiding portion.
In an alternative embodiment, the friction shaft is made of tool steel, tungsten-rhenium alloy or ceramic.
In a second aspect, the present invention provides a friction additive method comprising: the friction-additive device in the embodiment is adopted to perform friction-additive on the substrate.
In an alternative embodiment, it comprises the steps of: the substrate is fixed on a workbench, the friction material adding device and the substrate are arranged at an angle of 1-10 degrees, and the pushing mechanism is moved to be separated from the accommodating cavity and is filled with material adding materials;
after filling is finished, starting the first driving mechanism and the second driving mechanism to carry out friction heat generation plasticization, extruding from the end part of the friction shaft sleeve, and carrying out friction rolling on the extruded plastic material and a substrate by the end part of the friction shaft sleeve to obtain an additive layer;
and after one material adding layer is completed, the friction material adding device is moved to the previous material adding layer, then the filling is repeated, the material is pushed to move downwards, and friction extrusion is carried out, so that a plurality of material adding layers are obtained.
In an alternative embodiment, the friction-additive device is located 2-15mm above the substrate or the additive layer.
The beneficial effects of the embodiment of the invention include, for example:
the embodiment of the invention provides a friction material adding device, which is characterized in that friction plasticization is carried out on material adding materials in a containing cavity by rotating a friction shaft and a friction shaft sleeve along opposite directions, the diameter of the friction part of the friction shaft is larger than that of a clamping part and gradually increases along the direction from the clamping part to a material guiding part, the diameter of the material guiding part gradually decreases along the direction from the clamping part to the material guiding part, so that the containing cavity presents a space with a large upper part, the space at the upper part is greatly beneficial to filling more material adding materials, and simultaneously, along with stirring extrusion, the space of the containing cavity gradually decreases, thereby being beneficial to strengthening the friction plasticization effect, improving the friction plasticization efficiency, and finally, the prepared material adding layer has excellent performance. In addition, the friction material adding method is simple to operate, easy to implement, high in material adding efficiency and good in product quality.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of a friction material adding device according to embodiment 1 of the present application;
fig. 2 is a schematic structural diagram of a pushing mechanism of the friction material adding device provided in embodiment 1 of the present application outside the accommodating cavity;
fig. 3 is a schematic structural view of a pushing mechanism of the friction material adding device provided in embodiment 1 of the present application in the accommodating cavity;
fig. 4 is a cross-sectional view at A-A in fig. 3.
Icon: 100-friction additive device; 110-friction shaft; 111-clamping part; 112-friction part; 113-a material guiding part; 120-friction sleeve; 121-a receiving cavity; 122-a sleeve portion; 123-extruding a rolling part; 124-material disturbing piece; 130-a pushing mechanism; 140-a first drive mechanism; 150-a second drive mechanism; 151-drive bearings; 152-a driver; 153-belt; 154-rotating wheel.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Example 1
Referring to fig. 1-4, the present invention provides a friction additive device 100, which includes a friction shaft 110, a friction sleeve 120, a pushing mechanism 130, a first driving mechanism 140 and a second driving mechanism 150.
Referring to fig. 1 and fig. 4 in combination, in the present application, the friction shaft 110 is used as a main stirring shaft, and includes a clamping portion 111, a friction portion 112 and a guiding portion 113 sequentially connected from top to bottom, the clamping portion 111 is in a columnar structure, an end portion of the clamping portion is connected with the first driving mechanism 140, a diameter of the friction portion 112 is larger than a diameter of the clamping portion 111, and a cross section of the friction portion is formed into a trapezoid structure by gradually increasing along a direction from the clamping portion 111 to the guiding portion 113, and a diameter of the guiding portion 113 is formed into an inverted trapezoid structure by gradually decreasing along a direction from the clamping portion 111 to the guiding portion 113. That is, in the present application, the friction portion 112 of the friction shaft 110 has a structure with a large top and a large bottom, and the material guiding portion 113 has a structure with a large top and a small bottom. The friction shaft 110 is made of tool steel, tungsten-rhenium alloy or ceramic, and has high hardness, so that the friction of the additive material is easy to perform.
The friction shaft sleeve 120 is sleeved on the outer side of the friction shaft 110 and is coaxially arranged at intervals with the friction shaft 110, and a containing cavity 121 for containing additive materials is formed between the friction shaft 110 and the friction shaft sleeve 120. In this application, the friction bushing 120 includes a sleeve portion 122 and an extrusion rolling portion 123, the sleeve portion 122 is cylindrical, the diameter of the extrusion rolling portion 123 is gradually reduced along the direction from the sleeve portion 122 to the extrusion rolling portion 123, and the height of the extrusion rolling portion 123 is smaller than the height of the guide portion 113. Because the special structure of friction portion 112 and guide portion 113 of friction axle 110 in this application for hold cavity 121 in this application and present that the upper portion space is big, the structure that the lower part space is little, especially, the handing-over department of friction portion 112 and guide portion 113 has minimum interval with friction sleeve 120, is about 1-5mm, and this gap can guarantee that the material gradually extrudees to the lower part little space from the upper portion big space that holds cavity 121, and the frictional effect that the material received is stronger, and the effect of friction plasticization is good. In addition, a material disturbing member 124 is disposed in the friction sleeve 120 of the present application, and the material disturbing member 124 protrudes from a side wall of the friction sleeve 120. The material disturbing member 124 can provide a barrier for rotation of the additive material in the accommodating cavity 121, so as to improve friction effect. The number of the material disturbing members 124 in the present application is plural and uniformly distributed along the axial direction and the radial direction of the friction bushing 120, and it should be understood that the direction and the number of the material disturbing members 124 may be adjusted according to actual needs. It should be further noted that, in the present application, the inner surface of the friction sleeve 120 is a rough surface, which is beneficial to further enhancing the friction effect when the rough surface contacts the material.
Referring to fig. 2 and 3 in combination, the pushing mechanism 130 is used for extruding the friction plasticized material in the accommodating cavity 121. In this application, pushing equipment 130 is configured as can reciprocate freely, and pushing equipment 130 is cylindrical, is provided with the mounting hole that runs through on the pushing equipment 130, pushing equipment 130 and friction axle 110 coaxial setting and by friction axle 110 follow the mounting hole and pass, pushing equipment 130 can selectively hold cavity 121 inside and outside up-and-down motion, and then realize opening and hold cavity 121 and pack to after the packing is finished, still can move down in order to promote and extrude the material, make the better friction of material under the drive of first actuating mechanism 140 and second actuating mechanism 150.
The first driving mechanism 140 is connected to the friction shaft 110 to drive the friction shaft 110 to rotate, where the first driving mechanism 140 is a motor.
Referring to fig. 1, the second driving mechanism 150 is connected to the friction shaft sleeve 120 to drive the friction shaft sleeve 120 to rotate, the rotation directions of the friction shaft 110 and the friction shaft sleeve 120 are opposite, the second driving mechanism 150 includes a transmission bearing 151, a driving member 152 and a belt 153, a rotating wheel 154 is disposed on a rotating shaft of the driving member 152, the belt 153 is sleeved on the transmission bearing 151 and the rotating wheel 154, a clamping portion 111 of the friction shaft 110 passes through an inner ring of the transmission bearing 151, and an outer ring of the transmission bearing 151 is fixedly connected with the friction shaft sleeve 120. The driving member 152 is also a motor, the driving member 152 drives the rotating wheel 154 to rotate, the rotating wheel 154 drives the belt 153 and the transmission bearing 151 to rotate, and the transmission bearing 151 drives the friction shaft sleeve 120 connected with the transmission bearing to rotate. In this application, the rotation directions of the friction shaft sleeve 120 and the friction shaft 110 are opposite, which is beneficial to friction plasticization of the additive material in the accommodating cavity 121.
Referring to fig. 1-4, the friction material increasing device 100 provided in the present application works as follows: through upwards moving pushing equipment 130 makes it break away from and holds cavity 121, can pack the material-increasing material to holding cavity 121 this moment, after the packing is accomplished, downwards moving pushing equipment 130, simultaneously start first actuating mechanism 140 and second actuating mechanism 150, first actuating mechanism 140 drives friction axle 110 and rotates, second actuating mechanism 150 drives friction axle sleeve 120 and rotates along the opposite direction with friction axle 110 rotation direction, the material-increasing material that is located in holding cavity 121 this moment carries out friction plasticization to friction axle 110 and friction axle sleeve 120, the internal surface of friction axle sleeve 120 is the roughness surface, and friction axle sleeve 120 can be strengthened to the friction effect of material-increasing material to friction axle sleeve 120 by the material-disturbing piece 124 that friction axle sleeve 120 internal surface set up. The friction plasticized material is extruded and pushed by the pushing mechanism 130, and finally extruded from the gap between the extrusion rolling part 123 of the friction shaft sleeve 120 and the material guiding part 113 of the friction shaft 110.
Example 2
The embodiment provides a friction material adding method, which comprises the steps of performing friction material adding on a substrate by adopting the friction material adding device 100 provided in the embodiment 1, performing material adding by taking 6061 aluminum alloy as a raw material, and achieving material adding effects of more than 3 layers.
Specifically, the friction material adding method provided by the embodiment includes the following steps:
step one: the 6061 aluminum alloy substrate is fixed on a workbench, the friction material adding device 100 and the substrate are inclined by 3 degrees, the pushing mechanism 130 is moved to be separated from the accommodating cavity 121, and the friction material adding device 100 is moved to a position 3mm above the substrate.
Step two: after the 6061 aluminum alloy particles are filled into the accommodating cavity 121, the pushing mechanism 130 is driven to push down the materials, and the first driving mechanism 140 and the second driving mechanism 150 are respectively started at the same time, and the rotating speeds are respectively 800rpm and 500rpm.
Step three: the pushing mechanism 130 is activated to squeeze and frictionally plasticize the 6061 aluminum alloy within the receiving cavity 121 and out the end of the friction bushing 120.
Step four: when the plastic material is accumulated at the end of the friction sleeve 120 by a certain amount, the friction material adding device 100 is moved, and the extruded 6061 aluminum alloy plastic material and the substrate are rubbed and rolled by the bottom of the friction sleeve 120 to obtain an material adding layer.
Step five: after one additive layer is completed, the friction additive device 100 is moved to a position 3mm above the previous additive layer, and then the steps two to four are repeated, so that 3 additive layers are obtained.
Example 3
The embodiment provides a friction material adding method, which comprises the steps of performing friction material adding on a substrate by adopting the friction material adding device 100 provided in the embodiment 1, performing material adding by taking T2 red copper as a raw material, and achieving material adding effects of more than 5 layers.
Specifically, the friction material adding method provided by the embodiment includes the following steps:
step one: the 6061 aluminum alloy substrate is fixed on a workbench, the friction material adding device 100 and the substrate are inclined by 3 degrees, the pushing mechanism 130 is moved to be separated from the accommodating cavity 121, and the friction material adding device 100 is moved to a position 5mm above the substrate.
Step two: after filling the T2 red copper particles into the accommodating cavity 121, the pushing mechanism 130 is driven to push down the materials, and the first driving mechanism 140 and the second driving mechanism 150 are respectively started at the same time, and the rotating speeds are respectively 1000rpm and 800rpm.
Step three: the pushing mechanism 130 is started, and the T2 red copper in the accommodating cavity 121 is extruded, rubbed and plasticized, and extruded from the end part of the friction shaft sleeve 120.
Step four: when the plastic material is accumulated at the end of the friction sleeve 120 by a certain amount, the friction material adding device 100 is moved, and the extruded T2 red copper plastic material and the substrate are rubbed and rolled by the bottom of the friction sleeve 120 to obtain an material adding layer.
Step five: after one additive layer is completed, the friction additive device 100 is moved to a position 5mm above the previous additive layer, and then the steps two to four are repeated, so that 5 additive layers are obtained.
In summary, the embodiment of the present invention provides a friction material increasing device 100, which rotates the friction shaft 110 and the friction shaft sleeve 120 along opposite directions to achieve friction plasticization of the material increasing in the accommodating cavity 121, since the diameter of the friction portion 112 of the friction shaft 110 is larger than that of the clamping portion 111 and gradually increases along the direction from the clamping portion 111 to the material guiding portion 113, the diameter of the material guiding portion 113 gradually decreases along the direction from the clamping portion 111 to the material guiding portion 113, so that the accommodating cavity 121 presents a space with a large upper portion and a small lower portion, the space at the upper portion is greatly beneficial to filling more material increasing, and simultaneously, along with stirring extrusion, the space of the accommodating cavity 121 gradually decreases to be beneficial to enhancing the friction plasticization effect, improving the friction plasticization efficiency, and finally, the plasticized material extruded from the bottoms of the friction shaft 110 and the friction shaft sleeve 120 has the advantages of excellent performance of the obtained material increasing layer, wide material application range, high efficiency, excellent performance of the material increasing layer, high efficiency, no pollution, small deformation and the like, and the size limitation of the material increasing initially. In addition, the friction material adding method is simple to operate, easy to implement, high in material adding efficiency and good in product quality.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The friction material adding device is characterized by comprising a friction shaft, a pushing mechanism, a friction shaft sleeve, a first driving mechanism and a second driving mechanism, wherein the friction shaft sleeve is sleeved on the outer side of the friction shaft and is coaxially arranged with the friction shaft, a containing cavity for containing material adding is formed between the friction shaft and the friction shaft sleeve, the pushing mechanism is coaxially arranged with the friction shaft and is penetrated by the friction shaft, the pushing mechanism can selectively move up and down in the containing cavity, the first driving mechanism is connected with the friction shaft to drive the friction shaft to rotate, the second driving mechanism is connected with the friction shaft sleeve to drive the friction shaft sleeve to rotate, the friction shaft comprises a clamping part, a friction part and a material guiding part which are sequentially connected from top to bottom, the diameter of the friction part is larger than that of the clamping part and gradually increases along the direction from the clamping part to the material guiding part, and the diameter of the material guiding part gradually decreases along the clamping part to the material guiding part;
the pushing mechanism is cylindrical, a penetrating mounting hole is formed in the pushing mechanism, and the friction shaft penetrates through the mounting hole;
a material disturbing piece is arranged in the friction shaft sleeve and protrudes out of the side wall of the friction shaft sleeve; the friction shaft sleeve comprises a sleeve part and an extrusion rolling part, wherein the sleeve part is cylindrical, the diameter of the extrusion rolling part is gradually reduced along the direction from the sleeve part to the extrusion rolling part, and the height of the extrusion rolling part is smaller than that of the material guiding part.
2. A friction additive device according to claim 1 wherein the material disrupters are a plurality and are evenly distributed along the axial and radial directions of the friction sleeve.
3. The friction material adding device according to claim 1, wherein the second driving mechanism comprises a transmission bearing, a driving member and a belt, a rotating wheel is arranged on a rotating shaft of the driving member, the belt is sleeved on the transmission bearing and the rotating wheel, the clamping part of the friction shaft penetrates through an inner ring of the transmission bearing, and an outer ring of the transmission bearing is fixedly connected with the friction shaft sleeve.
4. A friction additive device according to claim 1 wherein the friction shaft is made of tool steel, tungsten-rhenium alloy or ceramic.
5. A friction additive method, comprising: friction-adding on a substrate using a friction-adding device according to any of claims 1-4.
6. A friction additive method according to claim 5 comprising the steps of:
the substrate is fixed on a workbench, the friction material adding device and the substrate are arranged at an angle of 1-10 degrees, and the pushing mechanism is moved to be separated from the accommodating cavity and is filled with material adding materials;
after filling is finished, driving the pushing mechanism to push materials downwards, simultaneously starting the first driving mechanism and the second driving mechanism to carry out friction heat-generating plasticization, extruding from the end part of the friction shaft sleeve, and carrying out friction rolling on the extruded plastic material and a substrate by the end part of the friction shaft sleeve to obtain an additive layer;
and after one material adding layer is completed, the friction material adding device is moved to the previous material adding layer, then the filling is repeated, the material is pushed to move downwards, and friction extrusion is carried out, so that a plurality of material adding layers are obtained.
7. A friction-additive method according to claim 6, wherein the friction-additive device is located 2-15mm above the substrate or the additive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210690895.0A CN114850652B (en) | 2022-06-17 | 2022-06-17 | Friction material adding device and friction material adding method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210690895.0A CN114850652B (en) | 2022-06-17 | 2022-06-17 | Friction material adding device and friction material adding method |
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| CN114850652A CN114850652A (en) | 2022-08-05 |
| CN114850652B true CN114850652B (en) | 2024-04-12 |
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