CN118789096B - Friction stir additive manufacturing equipment capable of continuously feeding and control method - Google Patents
Friction stir additive manufacturing equipment capable of continuously feeding and control method Download PDFInfo
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- CN118789096B CN118789096B CN202411280181.8A CN202411280181A CN118789096B CN 118789096 B CN118789096 B CN 118789096B CN 202411280181 A CN202411280181 A CN 202411280181A CN 118789096 B CN118789096 B CN 118789096B
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- 239000000654 additive Substances 0.000 title claims abstract description 41
- 230000000996 additive effect Effects 0.000 title claims abstract description 39
- 238000003756 stirring Methods 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 35
- 239000000463 material Substances 0.000 claims description 29
- 238000003825 pressing Methods 0.000 claims description 28
- 230000008569 process Effects 0.000 claims description 10
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 239000002783 friction material Substances 0.000 claims description 5
- 230000000994 depressogenic effect Effects 0.000 claims 1
- 239000000758 substrate Substances 0.000 abstract description 4
- 230000036544 posture Effects 0.000 description 23
- 230000005540 biological transmission Effects 0.000 description 16
- 230000007704 transition Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 239000000109 continuous material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- WPPDFTBPZNZZRP-UHFFFAOYSA-N aluminum copper Chemical compound [Al].[Cu] WPPDFTBPZNZZRP-UHFFFAOYSA-N 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 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
- B23K20/1215—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 for other purposes than joining, e.g. built-up 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)
- Turning (AREA)
Abstract
The invention discloses a friction stir additive manufacturing device for continuous feeding and a control method thereof, which belong to the technical field of additive manufacturing and comprise a friction additive device, a feeding device, a bar driving device and a bar transferring device, wherein the structure transfers bars to the feeding device through the bar transferring device, a gesture adjusting mechanism arranged on the feeding device can adjust the bars into preset gestures, and then the bar stock with the preset gesture enters the feeding channel and enters the bar stock driving device through the feeding channel, the bar stock driving device drives the bar stock to move in the feeding channel along the axial direction of the feeding channel, a certain pressure is applied to the bar stock, and the main shaft is rotatable, so that the bar stock can be subjected to friction stir on the substrate, further plasticized and deposited on the substrate, and automatic continuous feeding and continuous additive manufacturing are realized.
Description
Technical Field
The invention relates to the technical field of additive manufacturing, in particular to continuous feeding friction stir additive manufacturing equipment and a control method.
Background
The friction stir additive manufacturing is divided into rod feeding friction stir additive manufacturing, particle feeding friction stir additive manufacturing and wire feeding friction stir additive manufacturing from raw materials. Rod feeding structure additive manufacturing is difficult to realize continuous additive manufacturing because the rods are in a section-to-section mode and simultaneously in the additive manufacturing process, the rods are in a rotating state.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent.
To this end, an object of the invention is to propose a friction stir additive manufacturing apparatus comprising a friction additive device, a feeding device, a bar driving device, a bar transporting device and a bar stock bin, wherein the friction additive device comprises a rotatable spindle, the spindle is hollow and forms a material transporting channel for accommodating bars, the feeding device is arranged at the upstream of the friction additive device and comprises a posture adjusting mechanism for adjusting the posture of the bars to a preset posture, the posture adjusting mechanism comprises a feeding channel, the feeding channel and the material transporting channel are coaxially arranged, the bars in the preset posture can enter the material transporting channel through the feeding channel, the bar driving device is arranged between the friction additive device and the feeding device and is used for receiving bars in the feeding channel and driving the bars to move in the axis direction of the material transporting channel, the bar stock transporting device comprises a clamping mechanism, the bar stock bin is used for storing the bars, and the clamping mechanism is suitable for moving between the bar stock bin and the feeding device so as to transport the bars in the bar stock bin to the feeding channel.
According to the technical characteristics, the bar material in the bar material bin is conveyed to the feeding device through the bar material transferring device, the bar material in the bar material bin can be adjusted to be in a preset gesture by the gesture adjusting mechanism arranged on the feeding device, then the bar material in the preset gesture enters the feeding channel and enters the bar material driving device through the feeding channel, the bar material driving device drives the bar material to move in the feeding channel along the axis direction of the feeding channel, a certain pressure is applied to the bar material, and the main shaft is rotatable, so that the bar material can be stirred and rubbed on the substrate, further plasticized and deposited on the substrate, and automatic continuous feeding and continuous material adding are realized.
Optionally, in one embodiment of the present invention, the bar driving device includes a driving support, the driving support is connected to the spindle, the driving support is provided with a first feeding engaging tooth and a second feeding engaging tooth which are arranged oppositely, the first feeding engaging tooth and the second feeding engaging tooth are arranged along a radial interval of the first feeding engaging tooth to form a driving channel, the driving channel is used for receiving the bar in the feeding channel, and the first feeding engaging tooth and the second feeding engaging tooth drive the bar to move in the axial direction of the feeding channel in the feeding channel.
Optionally, in one embodiment of the present invention, the bar driving device further includes a first worm and a second worm, the first worm and the second worm are meshed with the first feeding meshing tooth and the second feeding meshing tooth, respectively, the first worm and the second worm are both disposed on the driving support, the axes of the first worm and the second worm are parallel to the axis of the feeding channel, the first feeding meshing tooth and the second feeding meshing tooth are disposed between the first worm and the second worm, and the axes of the first feeding meshing tooth and the second feeding meshing tooth are perpendicular to the axis of the feeding channel.
Optionally, in one embodiment of the present invention, the feeding device includes a feeding support, a first receiving element, a second receiving element and a third receiving element, the second receiving element and the third receiving element are rotatably mounted on the feeding support, axes of the first receiving element, the second receiving element and the third receiving element are collinear, the first receiving element is hollow to form a feeding channel, the second receiving element is hollow to form a receiving channel, the third receiving element is hollow to form a feeding channel, the first receiving element, the second receiving element and the third receiving element are sequentially arranged at intervals along the axis of the feeding channel, and the second receiving element is slidably mounted on the feeding support along the axis of the feeding channel so as to enable the feeding channel, the receiving channel and the feeding channel to be selectively communicated, wherein the feeding channel is correspondingly arranged with the driving channel.
Optionally, in an embodiment of the present invention, the posture adjustment mechanism is a hollow rod-shaped structure, the hollow rod-shaped structure includes a feeding portion and a guiding portion that are sequentially disposed, at least a portion of the feeding portion forms a feeding channel, the guiding portion is configured in a flared shape, the guiding portion includes a first end disposed close to the feeding portion and a second end disposed away from the feeding portion, a cross-sectional shape of the first end is consistent with a cross-sectional shape of the bar, the second end is circular, the first end and the second end transition through a transition surface to form a guiding surface, and the feeding channel is disposed corresponding to the driving channel.
Optionally, in an embodiment of the present invention, a first limiting groove is formed on the first receiving element, a first limiting protrusion and a second limiting protrusion are formed on the second receiving element, a second limiting groove is formed on the third receiving element, the first limiting protrusion can be clamped into the first limiting groove in the process of moving the second receiving element to the first receiving element, and the second limiting protrusion can be clamped into the second limiting groove in the process of moving the second receiving element to the third receiving element.
Alternatively, in one embodiment of the invention, the side wall of the feeding channel is provided with a first guide part extending along the axial direction close to the second adapting piece, the first limit protrusion is formed on the side wall of the second adapting piece, the first guide part is formed as a ratchet tooth extending along the axial direction, the first limit groove is formed at the tooth root of the ratchet tooth of the first guide part, the side wall of the feeding channel is provided with a second guide part extending along the axial direction close to the second adapting piece, the second limit protrusion is formed on the side wall of the second adapting piece, the second guide part is formed as a ratchet tooth extending along the axial direction, and the second limit groove is formed at the tooth root of the ratchet tooth of the second guide part.
Optionally, in an embodiment of the present invention, the apparatus further includes a pressing device, where the pressing device includes a pressing base, a pressing support, and a pressing head, where the pressing support includes a mounting plate and a mounting frame, the mounting plate is slidably mounted on the pressing base along a first direction, the mounting frame is slidably mounted on the mounting plate along a second direction, and the pressing head is mounted on the mounting frame, and the first direction is an axial direction of the feeding channel, and the second direction is perpendicular to the first direction.
The invention further aims at providing a control method of the friction additive manufacturing equipment for continuous feeding, which comprises the steps of detecting whether bar stock is stored in a bar stock bin; if the feeding channel is in the same position as the feeding channel, the clamping mechanism is driven to clamp the bar stock to be transported to the feeding channel, the axis of the bar stock is overlapped with that of the feeding channel, the bar stock is loosened, the gesture of the bar stock is adjusted by the gesture adjusting mechanism, so that the gesture of the bar stock is consistent with that of the feeding channel, and the bar stock in the feeding channel is driven to enter the feeding channel through the bar stock driving device.
Optionally, in one embodiment of the present invention, the bar is further pressed down by the pressing device, so that the bar in the feeding channel enters the bar driving device, and the bar is driven by the bar driving device to enter the feeding channel.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic illustration of a continuously fed friction additive manufacturing apparatus according to one embodiment of the invention;
FIG. 2 is a schematic view of a bar stock driving apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic view of a bar stock driving apparatus according to another embodiment of the present invention;
FIG. 4 is a schematic view of the embodiment of FIG. 2 with auxiliary wheels according to the present invention;
FIG. 5 is a schematic illustration of the bar drive and friction additive device according to one embodiment of the invention;
FIG. 6 is a schematic view of a feeding device according to an embodiment of the present invention;
FIG. 7 is a schematic view of a feeding device according to another embodiment of the present invention;
Fig. 8 is a schematic structural view of a pressing apparatus according to an embodiment of the present invention;
FIG. 9 is a top view of a rod magazine and rod handling device according to one embodiment of the present invention;
FIG. 10 is a schematic view of a partial structure of a rod magazine and rod handling device according to one embodiment of the present invention;
Fig. 11 is a schematic structural view of a bar stock driving apparatus according to still another embodiment of the present invention.
Reference numerals:
bar stock 8, base plate 9, main shaft 10, material conveying channel 11;
The first feeding meshing gear 21, the second feeding meshing gear 22, the first worm 31, the second worm 32, the first driven gear 33, the second driven gear 34, the auxiliary wheel 35, the driving channel 40, the second feeding meshing wheel 42, the driving bracket 50, the feeding driving motor 60, the first transmission member 61, the second transmission member 62, the hollow motor 70, the avoidance channel 71, the driving gear 72, and the second driving member 80;
The first mounting plate 107, the second mounting plate 108, the sliding rail 109, the first receiving piece 110, the feeding channel 111, the first limiting groove 112, the second receiving piece 120, the first limiting protrusion 122-1, the second limiting protrusion 122-2, the sliding seat 123, the third receiving piece 130, the feeding channel 131 and the second limiting groove 132;
a clamping mechanism 200;
a pressing base 310, a pressing bracket 320 and a pressing head 330.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
As shown in fig. 1, the rotating spindle 10 may rotate the bar 8, then rub on the base plate 9, and plasticize and deposit the bar 8 on the base plate 9 to realize friction stir additive. By this method, a composite material, such as an aluminum copper composite material, can be manufactured. However, the rotating spindle 10 does not easily allow for automated continuous feeding.
In the invention, as shown in figures 1-11, the continuous feeding friction stir additive manufacturing equipment comprises a friction additive device, a feeding device, a bar driving device, a bar transferring device and a bar bin.
As shown in fig. 1 and 2, the friction stir additive device comprises a rotatable spindle 10, the spindle 10 hollow defining a feed channel 11 for receiving the bar stock 8, and in one embodiment, the friction additive device further comprises a second drive member 80 and a conveyor belt, the second drive member 80 being in transmission with the spindle 10 via the conveyor belt. The second driving member 80 may be a motor provided on the base, and the motor drives the spindle 10 to rotate on the base through a conveyor belt.
The bar driving device is arranged at the upstream of the friction material adding device and is used for driving the bar 8 to move in the material conveying channel 11 along the axial direction of the material conveying channel 11. As shown in fig. 3 and 6, fig. 3 is a bar driving device, fig. 6 is a feeding device, the feeding device is located at the upstream of the bar driving device, namely, the bar driving device is located between the friction material adding device and the feeding device, the feeding device comprises a posture adjusting mechanism, the posture adjusting mechanism is used for adjusting the posture of the bar 8 to a preset posture, the posture adjusting mechanism comprises a feeding channel 131, the feeding channel 131 and the feeding channel 11 are coaxially arranged, the bar 8 in the preset posture can enter the feeding channel 11 through the feeding channel 131, and the bar driving device can receive the bar 8 in the feeding channel 131 and drive the bar 8 to move in the feeding channel 11 along the axial direction of the feeding channel 11.
The bar stock compartment is used for storing bar stock and can store a plurality of bar stock 8. As shown in fig. 6, 9 and 10, the bar transfer device comprises a gripping mechanism 200, the gripping mechanism 200 being adapted to transfer the bar 8 in the bar magazine to the feed channel 131. In particular, the gripping mechanism 200 is adapted to move between the rod magazine and the feeding device to transfer the bar stock 8 in the rod magazine to the feed channel 111.
According to the invention, the bar 8 in the bar stock bin is conveyed to the feeding device (fig. 6) through the bar stock transferring device (fig. 9 and 10), the bar stock 8 in the feeding device can be adjusted to be in a preset gesture by the gesture adjusting mechanism arranged on the feeding device, then the bar stock 8 in the preset gesture enters the feeding channel 131 and enters the bar stock driving device (fig. 3) through the feeding channel 131, the bar stock driving device drives the bar stock 8 to move in the feeding channel 11 along the axial direction of the feeding channel 11, a certain pressure is applied to the bar stock 8, the spindle 10 is rotatable, so that the bar stock 8 can stir and rub on the base plate 9, and further plasticize and deposit on the base plate 9, and automatic continuous feeding and continuous material adding are realized. The setting of the posture adjustment mechanism can be adapted not only to a circle but also to bars 8 of other shapes, such as square, pentagon, triangle, etc.
The structure of the bar stock driving device will be specifically described below.
Specifically, in one embodiment, as shown in fig. 2-4, the bar driving device includes at least a first feeding engagement member and a second feeding engagement member that are disposed in correspondence, with each other, along a radial direction of the first feeding engagement member, and a driving channel 40 is formed corresponding to the feeding channel 11. The driving channel 40 is used for receiving the bar stock in the feeding channel 131, and the first feeding engagement member and the second feeding engagement member drive the bar stock to move in the feeding channel 11 along the axial direction of the feeding channel 11, wherein, the first feeding engagement member and the second feeding engagement member can be both in a tooth structure, or one of the first feeding engagement member and the second feeding engagement member is in a tooth structure, and the other is in a wheel structure.
As shown in fig. 2, when the first feeding engaging member and the second feeding engaging member are both in the engaging tooth structure, that is, the first feeding engaging member is the first feeding engaging tooth 21, and the second feeding engaging member is the second feeding engaging tooth 22, it is understood that the first feeding engaging tooth 21 and the second feeding engaging tooth 22 may be disposed in parallel and spaced apart, the first feeding engaging tooth 21 and the second feeding engaging tooth 22 may be relatively rotated to form the driving channel 40, and when the bar 8 enters the driving channel 40, the relatively rotated first feeding engaging tooth 21 and second feeding engaging tooth 22 may engage the bar 8 to move it toward the feeding channel 11 and along the axial direction of the feeding channel 11, and then drive the bar 8 into the feeding channel 11. Then the main shaft 10 which is rotatably arranged on the base can drive the bar stock in the material conveying channel 11 to rotate, and the rotating bar stock 8 can continuously stir with the base plate to generate heat, so that the plastic softening is realized, and the stirring friction additive manufacturing is realized. Further, by driving the bar to move by the first feeding engagement teeth 21 and the second feeding engagement teeth 22, thrust force towards the base plate can be formed in the axial direction of the bar, so that heat can be generated by stirring friction, and the magnitude of the thrust force can be adjusted by adjusting the clamping force between the two engagement teeth. When the first feeding meshing piece and the second feeding meshing piece are both in a meshing tooth structure, the meshing force is larger, and larger pressure can be provided.
As shown in fig. 11, when one of the first feeding engagement member and the second feeding engagement member is in a tooth structure and the other is in a wheel structure, that is, the first feeding engagement member is the first feeding engagement tooth 21 and the second feeding engagement member is the second feeding engagement wheel 42, the driving channel 40 may be formed between the first feeding engagement tooth 21 and the second feeding engagement wheel as well. Similarly, as the bar enters the drive channel 40, the first and second feed engagement teeth 21, 42, which are relatively rotatable, may engage the bar to move it toward the feed channel 11 and in the direction of the axis of the feed channel 11, and then drive the bar into the feed channel 11. Then the main shaft 10 which is rotatably arranged on the base can drive the bar in the material conveying channel 11 to rotate, and the rotating bar can continuously stir with the base plate 9 to generate heat, so that the plastic softening is realized, and the stirring friction additive manufacturing is realized. Further, by driving the bar to move by the first feeding engagement teeth 21 and the second feeding engagement wheels 42, a pushing force towards the base plate can be formed in the axial direction of the bar, so that heat can be generated by stirring friction, and the pushing force can be adjusted by adjusting the clamping force between the first feeding engagement teeth 21 and the second feeding engagement wheels, when the structure is applied to the stirring friction additive manufacturing equipment, the bar can be further adjusted by adjusting the clamping force in the stirring friction process with the base plate, so that additive manufacturing can be better realized. When one of the first feeding meshing piece and the second feeding meshing piece is of a meshing tooth structure and the other is of a meshing wheel structure, the friction force of the meshing wheel structure is relatively small, and the service life of the feeding meshing piece can be prolonged.
In the scheme, the meshing teeth can be gears, bevel gears, herringbone teeth and the like, and the meshing wheels can use optical pulleys, surface-machined grooved wheels, rubber wheels and the like.
The following will specifically describe the scheme in which the first feeding engagement member and the second feeding engagement member are both in a tooth structure, that is, the first feeding engagement member is the first feeding engagement tooth 21, and the second feeding engagement member is the second feeding engagement tooth 22.
In one embodiment of the application, the bar driving device further comprises a first worm 31 and a second worm 32, the first worm 31 and the second worm 32 are respectively meshed with the first feeding meshing tooth 21 and the second feeding meshing tooth 22, and the bar driving device further comprises a first driving assembly which drives the first worm 31 and the second worm 32 to rotate so as to drive the first feeding meshing tooth 21 and the second feeding meshing tooth 22 to rotate relatively.
According to the application, the first worm 31 and the second worm 32 are adopted to drive the first feeding meshing teeth 21 and the second feeding meshing teeth 22 to rotate respectively, so that the structure is simple, the gap between the first feeding meshing teeth 21 and the second feeding meshing teeth 22 can be easily adjusted to realize bar clamping force adjustment, namely the gap of the driving channel 40 is adjustable, and further, the adjustment of the downward thrust is realized, namely the larger the clamping force is, the smaller the clamping force is, and the smaller the thrust is. In one embodiment of the present application, the bar driving device includes a driving bracket 50, the first worm 31 and the second worm 32 are disposed on the driving bracket 50, the axes of the first worm 31 and the second worm 32 are parallel to the axis of the feed channel 11, the first feed engaging tooth 21 and the second feed engaging tooth 22 are disposed between the first worm 31 and the second worm 32, and the axes of the first feed engaging tooth 21 and the second feed engaging tooth 22 are perpendicular to the axis of the feed channel 11. As shown in fig. 2, the first feeding engagement tooth 21 and the second feeding engagement tooth 22 are arranged laterally, and are rotatable relative to each other, so that the bar stock can be driven well into the feed passage 11 in the axial direction of the feed passage 11.
In one embodiment of the present application, the driving bracket 50 may be rotatably disposed on the base, the spindle 10 rotates and the spindle 10 drives the bar material to rotate relative to the driving bracket 50. In another embodiment of the present application, the drive bracket 50 may be coupled to the spindle 10, and the drive bracket 50 may rotate with the rotation of the spindle 10, in which case the bar stock does not rotate relative to the drive bracket 50.
The specific structure of the drive bracket 50 rotatably coupled to the base will be described in detail below.
As shown in fig. 2, the first driving assembly is a feeding driving motor 60, the feeding driving motor 60 is fixedly installed on the driving bracket 50, and the driving bracket 50 is rotatably installed on the base, so that the spindle 10 can rotate relative to the driving bracket 50. The first worm 31 and the second worm 32 are rotatably provided on the driving bracket 50, and the first feed meshing teeth 21 and the second feed meshing teeth 22 are also rotatably provided on the driving bracket 50. In this structure, if the feeding driving motor 60 does not drive the first worm 31 and the second worm 32 to rotate, the rotating bar will drive the first feeding engaging tooth 21 and the second feeding engaging tooth 22 to rotate and then drive the first worm 31 and the second worm 32 to rotate, and then the transmission member, such as a belt, between the feeding driving motor 60 and the first worm 31 and the second worm 32 will rotate in the opposite direction along with the rotation of the main shaft 10, and at this time, the bar is transported upwards, unlike the desire. Thus, if the bar is to be moved downwards during rotation, it is necessary that the rotational speed of the first worm 31 and the second worm 32 is greater than the rotational speed of the spindle 10.
In the above structure, one feeding driving motor 60 can be used to simultaneously drive the first worm 31 and the second worm 32 to rotate, so as to avoid the problem of non-synchronization in the double-motor control process.
The specific structure of the driving bracket 50 connected to the main shaft 10, i.e., the driving bracket 50 can be rotated with the rotation of the main shaft 10, will be described in detail below. In this structure, a common motor may be used to drive the first worm 31 and the second worm 32 to rotate through, for example, a belt, or a hollow motor may be used to drive the first worm 31 and the second worm 32 to rotate through, for example, a gear.
In an embodiment in which a common motor is used to drive the first worm 31 and the second worm 32 to rotate by, for example, a belt, as shown in fig. 2, specifically, the first driving assembly includes a motor, which may be disposed, for example, at a side of the first worm 31, and which may drive the first worm 31 and the second worm 32 to rotate by, for example, a belt.
Further, as shown in fig. 2, the motor includes a first driving shaft, the bar driving device further includes a first transmission member 61 and a second transmission member 62 axially spaced along the first driving shaft, the first driving shaft is in transmission connection with the first worm 31 through the first transmission member 61, and the first driving shaft is also in transmission connection with the second worm 32 through the second transmission member 62. That is, the first worm 31 and the second worm 32 are simultaneously driven to rotate by two transmission members through one first driving shaft, and in this structure, the first transmission member 61 and the second transmission member 62 may form a height difference to simultaneously drive the first worm 31 and the second worm 32 to rotate. The first transmission member 61 and the second transmission member 62 may be belts, chains, or the like.
In another embodiment, an auxiliary wheel 35 may be further provided, as shown in fig. 4, in which the auxiliary wheel 35, the first worm 31 and the second worm 32 are disposed on the driving bracket 50 at intervals along the circumferential direction of the feeding path 11, and the motor simultaneously drives the auxiliary wheel 35, the first worm 31 and the second worm 32 to rotate. It will be appreciated that the auxiliary wheel 35, the first worm 31 and the second worm 32 may be driven to rotate simultaneously by a single transmission, such as a belt, to achieve a single motor to simultaneously drive the first worm 31 and the second worm 32 to rotate avoiding the problem of out of sync during the dual motor control.
In embodiments employing a hollow motor to drive rotation of the first worm 31 and the second worm 32 via, for example, gears, the first drive assembly includes a hollow motor 70. As shown in fig. 3, the hollow motor 70 includes a relief passage 71, the relief passage 71 being disposed in correspondence with the driving passage 40, the relief passage 71 allowing the bar to pass through the hollow motor 70 when entering the driving passage 40. The escape passage 71 is a hollow passage, and its axis coincides with the axis of the feed passage 11.
In one particular embodiment, the hollow motor 70 is provided with a hollow motor drive shaft that is hollow, with the hollow portion of the hollow motor drive shaft being part of the bypass passage 71. The hollow motor driving shaft is sleeved with a driving gear 72, the first worm 31 and the second worm 32 are respectively provided with a first driven gear 33 and a second driven gear 34, and the first driven gear 33 and the second driven gear 34 are meshed with the driving gear 72. Thus, the first worm 31 and the second worm 32 can be simultaneously driven to rotate by one hollow motor 70, so that the problem of asynchronous control during double-motor control is avoided.
In one embodiment of the application, the clearance of the drive channel 40 is adjustable. For example, the first feed dog 21 and the second feed dog 22 may be removably mounted to the drive bracket 50, and the gap adjustment of the drive channel 40 may be achieved by adjusting the radii of the first feed dog 21 and the second feed dog 22. Also for example, the first feeding toothing 21 and the first worm 31 are provided on a first support, the second feeding toothing 22 and the second worm 32 are provided on a second support, the gap of the drive channel 40 being adjustable by adjusting the gap between the first support and the second support.
In one embodiment of the present application, as shown in fig. 5, one motor may be used to directly drive the first feeding engagement tooth 21 or the second feeding engagement tooth 22 to rotate, and two motors may be used to respectively drive the first feeding engagement tooth 21 and the second feeding engagement tooth 22 to rotate, so that various embodiments of the solution for driving the first feeding engagement tooth 21 and the second feeding engagement tooth 22 to rotate are possible.
One of the first feed engagement member and the second feed engagement member is in a tooth configuration and the other is in a wheel configuration, i.e., the first feed engagement member is the first feed engagement tooth 21 and the second feed engagement member is the second feed engagement wheel 42.
As shown in fig. 11, the bar driving device includes a driving bracket 50, and the driving bracket 50 is connected to the spindle 10, i.e., the driving bracket can rotate as the spindle rotates. The first feeding meshing teeth 21 and the second feeding meshing wheels 42 are rotatably arranged on the driving support, the axes of the first feeding meshing teeth 21 and the second feeding meshing wheels 42 are perpendicular to the axis of the material conveying channel 11, and the first driving assembly is used for driving the first feeding meshing teeth 21 to rotate. The rotating first feed engagement tooth 21 and the second feed engagement wheel 42 interact to engage the bar stock for movement in the axial direction of the feed channel 11 for additive manufacturing.
Wherein the second feed engagement wheel 42 may be polished to reduce friction.
In one embodiment of the present application, the first driving assembly may include a motor, where the motor may directly drive the first feeding gear 21 to rotate, or drive the first feeding gear 21 to rotate through a reduction gear, or drive the first feeding gear 21 to rotate through a worm, which is not limited herein.
In one embodiment of the present application, a plurality of second feeding engagement wheels 42 are provided, and the plurality of second feeding engagement wheels 42 are spaced apart along the axial direction of the feeding path 11, i.e., form a sliding wall, to reduce friction.
The first feed engagement member and the second feed engagement member of the present application may or may not be present in pairs.
Similarly, in the above-described embodiment, the clearance of the drive channel 40 is adjustable, for example, the second feed meshing wheel 42 is rotatably provided on the first bracket fixedly provided on the drive bracket 50, and the radius of the first feed meshing teeth 21 is adjustable, so that the clearance of the drive channel 40 is adjustable. Alternatively, the first feeding engagement teeth 21 are disposed on the support, and the gap between the support and the first support is adjusted, so that the gap of the driving channel 40 is adjustable.
The above specifically describes in detail both the structure in which the bar-driving device rotates with the rotation of the spindle 10 and the structure in which the bar-driving device does not rotate with the rotation of the spindle 10.
When the bar-driving device rotates with the rotation of the spindle 10, particularly for bars 8 whose cross-sectional shape is not circular, automatic continuous feeding thereof presents certain difficulties.
The following will specifically describe a feeding device in which the bar driving device rotates along with the rotation of the spindle 10, and automatic continuous feeding can be achieved.
Specifically, as shown in fig. 6 and 7, the feeding device includes a feeding bracket, a first receiving member 110, a second receiving member 120 and a third receiving member 130, the second receiving member 120 and the third receiving member 130 are rotatably mounted on the feeding bracket, and axes of the first receiving member 110, the second receiving member 120 and the third receiving member 130 are collinear, the first receiving member 110 is hollow to form a feeding channel 111, the second receiving member 120 is hollow to form a receiving channel, the third receiving member 130 is hollow to form a feeding channel 131, the first receiving member 110, the second receiving member 120 and the third receiving member 130 are sequentially arranged at intervals along the axis of the feeding channel 111, and the second receiving member 120 is slidably mounted on the feeding bracket along the axis of the feeding channel 111, so that the feeding channel 111, the receiving channel and the feeding channel 131 can be selectively communicated, wherein the third receiving member 130 is connected with the driving bracket 50 or the spindle 10, and the feeding channel 131 is correspondingly arranged with the driving channel 40. The third socket 130 being connected to the drive bracket 50 means that when the drive bracket 50 rotates with the spindle 10, the third socket 130 also rotates with it. In the present invention, the third receiving element 130 is rotatably mounted on the bracket, and can rotate along with the rotation of the welding head, so that the bar can be continuously conveyed for the welding head through the feeding channel 131 provided by the third receiving element 130. In order to conduct the receiving channel of the second receiving member 120 with the feeding channel 131 of the rotating third receiving member 130, the second receiving member 120 is further provided with a second limiting protrusion 122-2, and the third receiving member 130 is further provided with a second limiting groove 132, so that the second receiving member 120 and the third receiving member 130 rotate simultaneously through the second limiting protrusion 122-2, the receiving channel is conducted with the feeding channel 131, and the bar 8 can enter the feeding channel 131 from the receiving channel to realize feeding. The bar stock 8 may be circular in shape or other shapes, such as a polygon of square, triangle, etc. Especially for square or polygonal bar 8, the above structure can well center the bar 8 in the receiving channel with the feeding channel 131, that is, through the simultaneous rotation of the second receiving member 120 and the third receiving member 130, the gesture of the receiving channel is consistent with the gesture of the feeding channel 131, so that the bar 8 can enter the feeding channel 131 arranged on the third receiving member 130 in the rotating state from the receiving channel.
Further, when the bar 8 needs to be filled, the second receiving member 120 slides along the axis of the feeding channel 111 towards the first receiving member 110, and during the sliding process, the first limiting protrusion 122-1 can be clamped into the first limiting groove 112, so that the posture of the receiving channel is consistent with that of the feeding channel 111, that is, the receiving channel is communicated with the feeding channel 111, and thus the bar 8 can enter the receiving channel from the feeding channel 111.
Thus, according to the invention, for example, after the bar 8 with square cross section enters the feeding channel 111, the bar 8 enters the receiving channel from the feeding channel 111, one end of the bar 8 moves towards the third receiving member 130 together with the second receiving member 120, and the receiving channel and the feeding channel 131 are communicated under the action of the second limiting protrusion 122-2 and the second limiting groove 132. When the bar 8 is square, and the bar 8 is long enough, the first receiving member 110, the second receiving member 120 and the third receiving member 130 can rotate simultaneously under the action of the bar 8, so that the first receiving member 110 can be rotatably arranged.
When the bar 8 is square and the bar 8 is relatively short, that is, the bar 8 is separated from the feeding channel 111 after entering the receiving channel, the first receiving member 110 may not rotate, the bar 8 moves towards the third receiving member 130 with the second receiving member 120 separated from the first receiving member 110, then the receiving channel and the feeding channel 131 conduct the bar 8 to enter the feeding channel 131 under the action of the second limiting protrusion 122-2 and the second limiting groove 132, at this time, the second receiving member 120 and the third receiving member 130 rotate simultaneously, but the first receiving member 110 is not driven to rotate, so the first receiving member 110 does not need to rotate, the feeding channel 111 is fixed, and thus automatic feeding is convenient.
Further, the power of the second receiving element 120 moving toward the third receiving element 130 may be that the bar 8 is free falling under gravity and drives the second receiving element 120 to move through friction, and at this time, an elastic reset element may be disposed between the second receiving element 120 and the third receiving element 130, so that the second receiving element 120 resets. Or a second bearing driving structure, such as a second bearing driving cylinder, is adopted to drive the second bearing 120 to slide in the bracket, so that the structure is reliable.
Further, the side wall of the feeding passage 111 is provided with a first guide portion extending in the axial direction toward the direction approaching the second receiving piece 120, the first limit protrusion 122-1 is formed on the side wall of the second receiving piece 120, the first guide portion is formed as a ratchet tooth extending in the axial direction, the first limit groove 112 is formed at the tooth root of the ratchet tooth of the first guide portion, the second limit protrusion 122-2 is formed on the side wall of the second receiving piece 120, the side wall of the feeding passage 131 is provided with a second guide portion extending in the axial direction toward the direction approaching the second receiving piece 120, the second guide portion is formed as a ratchet tooth extending in the axial direction, and the second limit groove 132 is formed at the tooth root of the ratchet tooth of the second guide portion. The first limiting protrusion 122-1 and the second limiting protrusion 122-2 are respectively provided with a rotating bearing, the axis of the rotating bearing is perpendicular to the axis of the first receiving piece 110, and the rotating bearing is suitable for sliding along the inclined plane of the corresponding ratchet.
As shown in fig. 6 and 7, even the third receiving member 130 is rotated, the limit projection can slide along the inclined surface of the corresponding ratchet to guide the limit projection to be engaged with the limit groove.
In one embodiment of the present invention, the second receiving member 120 includes a sliding seat 123 and a rotating portion rotatably mounted on the sliding seat 123, the rotating portion is hollow to form a receiving channel, the feeding support includes a sliding rail 109 extending along an axial direction, and the sliding seat 123 is slidably engaged with the sliding rail 109. For example, the slide rail 109 is a guide post, and the slide base 123 is provided with a slide bushing (not shown in the figure), and by sliding the slide bushing on the guide post, the slide base 123 can slide reliably.
The feeding bracket further comprises a first mounting plate 107 and a second mounting plate 108, the first mounting plate 107 and the second mounting plate 108 are axially arranged at intervals, the sliding rail 109 is arranged between the first mounting plate 107 and the second mounting plate 108, a first through hole is formed in the first mounting plate 107, a second through hole is formed in the second mounting plate 108, the first through hole is sleeved outside the first bearing piece 110, the second through hole is sleeved outside the third bearing piece 130, and the sliding rail 109 is arranged between the first mounting plate 107 and the second mounting plate 108. The first elastic restoring member is stopped between the second mounting plate 108 and the sliding seat 123, so as to keep the second limiting protrusion 122-2 disengaged from the second limiting groove 132 in a normal state.
In another specific embodiment, the posture adjustment mechanism may be a hollow rod-shaped structure, where the hollow rod-shaped structure includes a feeding portion and a guiding portion that are sequentially disposed, at least a portion of the feeding portion forms a feeding channel 131, the guiding portion is configured in a flared shape, and the guiding portion includes a first end that is disposed near the feeding portion and a second end that is disposed far away from the feeding portion, the cross-sectional shape of the first end is consistent with the cross-sectional shape of the bar 8, the cross-sectional shape of the second end is circular, and the first end and the second end are transited through a transition surface, so that even for square bar, under the guidance of the transition surface, the posture of the bar can be gradually adjusted to a preset posture so as to enter the feeding channel 11.
As shown in fig. 8, the device further comprises a pressing device, the pressing device comprises a pressing base 310, a pressing support 320 and a pressing head 330, the pressing support 320 comprises a mounting plate and a mounting frame, the mounting plate is slidably mounted on the pressing base 310 along a first direction, the mounting frame is slidably mounted on the mounting plate along a second direction, and the pressing head 330 is mounted on the mounting frame. The first direction is the axial direction of the material conveying channel 11, and the second direction is perpendicular to the first direction. It will be appreciated that the presser head 330 may extend into the feed channel 111 upstream in the second direction when required, and then apply a certain pressure to the bar 8 in the feed channel 111 in the first direction, such that one end of the bar 8 may pass through the feed channel 111, the receiving channel and the feed channel 131 in sequence, and then enter the drive channel 40 formed between the first feed dog 21 and the second feed dog 22, and the presser head 330 may return in the original path after the first feed dog 21 and the second feed dog 22 relatively rotate to engage the bar 8.
In one of these embodiments, as shown in fig. 9 and 10, the rod magazine may be located beside the friction-additive device, and the rod transfer device is arranged between the rod magazine and the friction-additive device, such that the rod transfer device may clamp the rod 8 from the rod magazine by means of a clamping mechanism 200, e.g. provided on a robot. For example, the bar 8 is vertically placed in the bar stock bin, and the plurality of bar stocks 8 are arranged at intervals, the bar stocks 8 are clamped by the clamping mechanism 200, lifted upwards, rotated by a certain angle, and then extended into the upstream of the feeding channel 111 along the second direction, the clamping mechanism 200 is loosened, the bar stocks 8 freely fall into the feeding channel 111, and then the pressing head 330 starts working.
The third receiving member 130 may be rotatably disposed, and when the third receiving member 130 is rotatably disposed, the second guide structure is further disposed for receiving, for example, square bar stock. For example, a portion of the feed channel 111 forms a second guide structure for guiding the bar stock 8 to a preset condition. Specifically, the second guiding structure may be in a flared shape, where a cross-sectional shape of one end of the second guiding structure is circular, and a cross-sectional shape of the other end of the second guiding structure is consistent with a cross-sectional shape of the bar, for example, square, and the first end and the second end are in transition through a transition surface, so that, for example, the square bar can be gradually adjusted to a preset gesture through guiding of the transition surface and then enter the feeding channel 111.
A control method of the friction stir additive manufacturing apparatus having the above-described friction stir additive manufacturing apparatus will be described in detail below, wherein the control method includes:
s1, detecting whether bar stock is stored in a bar stock bin;
s2, if yes, driving a clamping mechanism to clamp the bar stock to be transported to the feeding channel, and enabling the bar stock to coincide with the axis of the feeding channel;
S3, loosening the bar stock, and adjusting the posture of the bar stock by adopting a posture adjusting mechanism to enable the posture of the bar stock to be consistent with the posture of the feeding channel;
s4, driving the bar stock in the feeding channel to enter the conveying channel through the bar stock driving device.
And (4) pressing down the bar stock through a pressing device before the step S4, so that the bar stock in the feeding channel enters the bar stock driving device, and driving the bar stock to enter the conveying channel through the bar stock driving device.
Specifically, after detecting that the rod bin has the rod 8, the clamping mechanism 200 starts to clamp the rod, then the rod is transported to the upper side of the first supporting member 110, the clamping mechanism 200 releases the rod, the clamping mechanism 200 is reset, the rod falls freely, the rod enters the feeding channel 111 and the supporting channel, the pressing equipment works, the second supporting member 120 and the supporting channel fall along with each other, in the falling process, the second limiting protrusion 122-2 on the second supporting member 120 is clamped into the second limiting groove 132, so that the postures of the supporting channel and the feeding channel 131 are consistent, the rod continuously enters the feeding channel 131, then enters the driving channel 40 formed between the first feeding engaging member and the second feeding engaging member through the feeding channel 131, the rod is driven to continuously move along the first direction, the first feeding engaging member and the second feeding engaging member are engaged in a relative rotation manner, the rod is continuously driven to continuously move along the axial direction of the feeding channel 11, and the rod enters the feeding channel 11, and then friction stir friction is carried out with the base plate 9 to realize friction stir material increase.
After the bar completely passes through the receiving channel, the second receiving element 120 can move towards the first receiving element 110, and in the moving process, the first limiting protrusion 122-1 can be clamped into the first limiting groove 112, so that the posture of the receiving channel is consistent with that of the feeding channel 111, and the bar can continuously enter the receiving channel from the feeding channel 111, and the cycle is repeated.
In the feeding process, the pressing head 330 of the pressing device resets after reaching the lower limit position, and the clamping mechanism 200 clamps and conveys the next bar, so that the cycle is performed.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (7)
1. A continuously fed friction stir additive manufacturing apparatus comprising:
The friction material adding device comprises a rotatable main shaft, wherein a material conveying channel for accommodating bar materials is formed in the main shaft in a hollow mode;
The feeding device is positioned at the upstream of the friction material adding device and comprises a gesture adjusting mechanism, wherein the gesture adjusting mechanism is used for adjusting the gesture of a bar stock to a preset gesture, the gesture adjusting mechanism comprises a feeding channel, the feeding channel and the feeding channel are coaxially arranged, and the bar stock in the preset gesture can enter the feeding channel through the feeding channel;
The bar driving device is positioned between the friction material adding device and the feeding device, and is used for receiving the bar in the feeding channel and driving the bar to move in the feeding channel along the axial direction of the feeding channel;
a bar transfer device comprising a clamping mechanism adapted to transfer bar to the feed channel;
the clamping mechanism is suitable for moving between the rod bin and the feeding device so as to transfer the rods in the rod bin to the feeding channel;
the bar driving device at least comprises a first feeding meshing piece and a second feeding meshing piece which are correspondingly arranged, wherein the first feeding meshing piece and the second feeding meshing piece are arranged at intervals along the radial direction of the first feeding meshing piece, and a driving channel corresponding to the material conveying channel is formed;
The feeding device comprises a feeding bracket, a first bearing piece, a second bearing piece and a third bearing piece, wherein the second bearing piece and the third bearing piece are rotatably arranged on the feeding bracket, the axes of the first bearing piece, the second bearing piece and the third bearing piece are collinear, the first bearing piece is hollow to form a feeding channel, the second bearing piece is hollow to form a bearing channel, the third bearing piece is hollow to form the feeding channel, the first bearing piece, the second bearing piece and the third bearing piece are sequentially arranged at intervals along the axis of the feeding channel, and the second bearing piece is slidably arranged on the feeding bracket along the axis of the feeding channel so that the feeding channel, the bearing channel and the feeding channel are selectively communicated, wherein the feeding channel and the driving channel are correspondingly arranged;
the first supporting piece is provided with a first limit groove, the second supporting piece is provided with a first limit protrusion and a second limit protrusion, the third supporting piece is provided with a second limit groove, the first limit protrusion can be clamped into the first limit groove in the process of moving the second supporting piece to the first supporting piece, and the second limit protrusion can be clamped into the second limit groove in the process of moving the second supporting piece to the third supporting piece;
The side wall of the feeding channel is provided with a first guide part which extends along the axial direction and is close to the direction of the second bearing piece, the first limiting protrusion is formed on the side wall of the second bearing piece, the first guide part is formed into a ratchet which extends along the axial direction, and the first limiting groove is formed at the tooth root of the ratchet of the first guide part.
2. The apparatus of claim 1 wherein the bar drive means comprises a drive bracket connected to the spindle, the first feed engagement member is a first feed engagement tooth, the second feed engagement member is a second feed engagement tooth, the drive bracket is provided with the first feed engagement tooth and the second feed engagement tooth disposed in opposition, the first feed engagement tooth and the second feed engagement tooth are disposed along a radial spacing of the first feed engagement tooth to form a drive channel for receiving bars in the feed channel, and the first feed engagement tooth and the second feed engagement tooth drive the bars in the feed channel along an axial direction of the feed channel.
3. The apparatus of claim 2 wherein the bar drive further comprises a first worm and a second worm engaged with the first feed engagement tooth and the second feed engagement tooth, respectively, the first worm and the second worm each being disposed on the drive support with axes parallel to the axis of the feed channel, the first feed engagement tooth and the second feed engagement tooth being disposed between the first worm and the second worm with axes perpendicular to the axis of the feed channel.
4. The apparatus according to claim 1, wherein a second guide portion extending in an axial direction toward a direction approaching the second socket is provided on a side wall of the feed passage, the second limit projection is formed on a side wall of the second socket, the second guide portion is formed as an axially extending ratchet tooth, and the second limit groove is formed at a tooth root of the second guide portion ratchet tooth.
5. The apparatus of any one of claims 1-4, further comprising a press apparatus comprising a press base, a press support, and a press head, the press support comprising a mounting plate and a mounting frame, the mounting plate being slidably mounted on the press base in a first direction, the mounting frame being slidably mounted on the mounting plate in a second direction, the press head being mounted on the mounting frame, wherein the first direction is an axial direction of the feed channel, the second direction being perpendicular to the first direction.
6. A control method of a continuously fed friction stir additive manufacturing apparatus, characterized in that the continuously fed friction stir additive manufacturing apparatus is a continuously fed friction stir additive manufacturing apparatus according to any one of claims 1 to 5, the control method comprising the steps of:
S1, detecting whether bars are stored in the bar stock bin or not;
S2, if yes, driving the clamping mechanism to clamp the bar stock to be transported to the feeding channel, and enabling the bar stock to coincide with the axis of the feeding channel;
s3, loosening the bar stock, and adjusting the posture of the bar stock by adopting a posture adjusting mechanism to enable the posture of the bar stock to be consistent with the posture of the feeding channel;
S4, driving the bar stock in the feeding channel to enter the conveying channel through a bar stock driving device.
7. The method of claim 6, wherein prior to step S4, the bar is further depressed by a pressing device such that the bar in the feed channel enters the bar drive and is driven by the bar drive into the feed channel.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113172331A (en) * | 2021-04-16 | 2021-07-27 | 哈尔滨工业大学 | A continuous feeding and feeding friction stir additive manufacturing device and additive manufacturing method |
| CN114178555A (en) * | 2021-12-13 | 2022-03-15 | 山东格物智能科技有限公司 | Main shaft structure applied to friction additive manufacturing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10688588B2 (en) * | 2017-06-12 | 2020-06-23 | Raytheon Technologies Corporation | Continuous feed spindle attachment |
| CN116652361B (en) * | 2023-04-21 | 2024-11-01 | 南京工业大学 | Friction stir additive manufacturing method and friction stir additive manufacturing device for metal member with variable path width |
| CN118305420A (en) * | 2024-04-25 | 2024-07-09 | 北京它山石精密机械有限公司 | Continuous feeding mechanism for friction stir material increase manufacturing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113172331A (en) * | 2021-04-16 | 2021-07-27 | 哈尔滨工业大学 | A continuous feeding and feeding friction stir additive manufacturing device and additive manufacturing method |
| CN114178555A (en) * | 2021-12-13 | 2022-03-15 | 山东格物智能科技有限公司 | Main shaft structure applied to friction additive manufacturing device |
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