Continuous feeding device for friction stir additive material and friction stir additive material equipment with continuous feeding device

Abstract

The invention discloses a continuous feeding device for friction stir additive and friction stir additive equipment with the continuous feeding device, and belongs to the field of additive manufacturing, the continuous feeding device comprises a plurality of feeding mechanisms, each feeding mechanism comprises a feeding seat and a driving rod, the feeding seat is provided with a clutch piece, the driving rod is provided with a threaded section, and the threaded section is provided with a threaded hole; the clutch piece has a first state in threaded fit with the driving rod and a second state separated from the driving rod; the feeding seats are further provided with feeding ports and clamping pieces, the clamping pieces are installed on the feeding seats and suitable for clamping the additive bars, and the feeding ports of the feeding seats of the multiple feeding mechanisms are right opposite to each other. The feeding device further comprises a driving assembly, and when the driving rod is sleeved with the clutch piece in an empty mode and the clamping piece does not clamp the bar, the driving assembly is used for driving the feeding base to move in the direction opposite to the feeding direction. According to the feeding device, the first feeding mechanism and the second feeding mechanism are arranged, so that the clutch piece of the first feeding mechanism and / or the second feeding mechanism is controlled to be in enclasping fit with the driving rod or be loosened and separated from the driving rod when needed, and continuous feeding is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of additive manufacturing, and in particular to a continuous feeding device for friction stir additive manufacturing and a friction stir additive equipment having the same. Background Art

[0002] The common raw materials for stir friction deposition manufacturing are rods, wires, particles, etc. The stir friction deposition manufacturing technology based on rods has the advantages of high efficiency, strong performance and low cost. However, most of the relevant technologies are currently non-continuous rod feeding deposition manufacturing technologies. Continuous rod feeding stir friction deposition manufacturing is extremely urgent in the fields of large-scale high-strength structural parts, dissimilar metal deposition manufacturing, etc., and therefore it needs to be improved. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an object of the present invention is to provide a continuous feeding device for stir friction additive manufacturing, which includes a plurality of feeding mechanisms, which are arranged at vertical intervals, the feeding mechanism including a feeding seat and a driving rod, the feeding seat is provided with a clutch, the clutch has a first state of tightly fitting with the driving rod and a second state of loosening and separating from the driving rod, when in the first state, the driving rod can drive the feeding seat to move along the feeding direction, and when in the second state, the clutch is empty on the driving rod; the feeding seat is also provided with a feeding port and a clamping member, the clamping member is installed on the feeding seat and is suitable for clamping additive rods, the feeding ports of the feeding seats of the plurality of feeding mechanisms are facing each other; the driving assembly, when the clutch is engaged When the feeding seat of the first feeding mechanism moves to the lower stroke position along the feeding direction, the driving assembly drives the feeding seat of the first feeding mechanism to move toward the upper stroke position in the direction opposite to the feeding direction, and / or, when the feeding seat of the second feeding mechanism moves to the lower stroke position along the feeding direction, the driving assembly drives the feeding seat of the second feeding mechanism to move toward the upper stroke position in the direction opposite to the feeding direction, and the upper stroke position and the lower stroke position are spaced apart along the feeding direction.

[0005] According to the above features, the present application can drive the feeding seat to move toward the lower stroke position through the driving rod. When the feeding seat moves to the lower stroke position, the clutch can be empty on the driving rod, and then the feeding seat is driven by the driving assembly to move toward the upper stroke position in the direction opposite to the feeding direction. Then the clutch can be tightly cooperated with the driving rod, and the clamping part clamps the bar material. Then the driving rod drives the feeding seat to move in the feeding direction, and this cycle is repeated to achieve continuous feeding.

[0006] Optionally, the drive rod has a threaded section. In a first state, the clutch and the threaded section of the drive rod are threadedly engaged. In a second state, the clutch and the threaded section of the drive rod are loosened and separated, and the clutch is loosely sleeved on the threaded section of the drive rod.

[0007] Optionally, the driving rod of the first feeding mechanism and the driving rod of the second feeding mechanism are coaxially connected to form a driving rod assembly, and the driving rod assembly is power-coupled to the driving motor.

[0008] Optionally, the output end of the driving motor is located at a side of the second feeding mechanism away from the first feeding mechanism, and the driving rod assemblies include multiple driving rod assemblies, and the multiple driving rod assemblies are all power-coupled to the driving motor.

[0009] Optionally, the feeding device also includes a driving wheel and multiple transmission wheels, the driving wheel is power-coupled with the output end of the driving motor, the multiple transmission wheels are arranged in a one-to-one correspondence with the multiple driving rod assemblies, and the driving wheel and the multiple transmission wheels are power-coupled.

[0010] Optionally, the driving wheel includes a pulley portion, which is connected to the plurality of transmission wheels by power coupling via a transmission belt, or the driving wheel includes a gear portion, which is meshed with the plurality of transmission wheels for transmission.

[0011] Optionally, it also includes a machine base, and a plurality of feeding seats are movably arranged on the machine base in the vertical direction.

[0012] Optionally, it also includes a guide rail and a guide slide seat that cooperate with each other, one of the guide rail and the guide slide seat is arranged on the machine base, and the other is arranged on the feeding base.

[0013] Optionally, the driving assembly includes a driving member, which includes a driving seat and a movable rod. The movable rod and the driving seat can be relatively movably arranged, the driving seat is connected to one of the two feeding seats, and the movable rod is connected to the other of the two feeding seats.

[0014] Optionally, the driving member is a cylinder.

[0015] Another object of the present invention is to provide a continuous feeding friction stir additive equipment, which includes the above-mentioned continuous feeding device.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0018] Figure 1It is a schematic structural diagram of a continuous feeding device for friction stir additive manufacturing according to one embodiment of the present invention;

[0019] Figure 2 It is a schematic diagram of the operation of a continuous feeding device according to one embodiment of the present invention;

[0020] Figure 3 It is a schematic diagram of the operation of a continuous feeding device according to another embodiment of the present invention;

[0021] Figure 4 1 is a diagram showing the initial state of a continuous feeding device according to an embodiment of the present invention.

[0022] Reference numerals:

[0023] Rod material 9; spindle 10; stirring head 11; material guide 12; auxiliary pressure rod 13;

[0024] Feeding mechanism 300; first feeding mechanism 300a; second feeding mechanism 300b;

[0025] Feeding seat 310; feeding port 311; driving rod 320; clutch member 330;

[0026] Guide rail 340; guide slide seat 350; driving member 360; lower stroke position detection element 370; lower limit position detection element 380;

[0027] A machine base 400 ; an output end 410 of a driving motor; a driving wheel 411 ; and a transmission wheel 412 . DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] The core of the rod-based friction stir deposition manufacturing is to transport the rotating additive rods to the surface of the substrate or the deposited layer. These additive rods and the substrate or the deposited layer rub violently, generating friction heat and plastic deformation heat, thereby plastically softening the additive rods. Under the forging pressure of the shoulder, the plasticized material combines with the substrate or the deposited layer to form a deposited layer. As the stirring head moves, new deposited layers are continuously added to the deposited layer, eventually forming a three-dimensional solid part.

[0030] like Figure 1As shown, the friction stir additive device generally includes a movable spindle 10, which is provided with a rotatable stirring head 11. The spindle 10 drives the stirring head 11 and the additive rod 9 to rotate, rubbing on the surface of the substrate or the deposited layer, thereby realizing deposition manufacturing.

[0031] According to the records of the background technology, continuous feeding rod friction stir deposition manufacturing is extremely urgent to be used in the fields of large-scale high-strength structural parts, dissimilar metal deposition manufacturing, etc. Therefore, this application proposes a continuous feeding device for friction stir additive manufacturing.

[0032] like Figure 1 As shown, the continuous feeding device includes a plurality of feeding mechanisms 300, and the plurality of feeding mechanisms 300 are arranged at vertical intervals. The plurality of feeding mechanisms 300 each include a feeding seat 310 and a driving rod 320. The plurality of feeding seats 310 each are provided with a clutch 330, and the clutch 330 has a first state in which it is tightly engaged with the driving rod 320 and a second state in which it is loosened and separated from the driving rod 320. When in the first state, that is, the clutch 330 is tightly engaged with the driving rod 320, the driving rod 320 can drive the feeding seat 310 to move in the feeding direction. When in the second state, that is, the clutch 330 is loosened and separated from the driving rod 320, the clutch 330 is loosely sleeved on the driving rod 320.

[0033] like Figure 1 and Figure 2 As shown, the multiple feeding seats 310 are also provided with a feeding port 311 and a clamping member (not shown in the figure), the clamping member is installed on the feeding seat 310, and is suitable for clamping the additive rod, and the feeding ports 311 of the feeding seats 310 of the multiple feeding mechanisms 300 are facing each other. The feeding ports 311 of the feeding seats 310 of the multiple feeding mechanisms 300 are facing each other, so that the rod can be moved from one of the feeding seats 310 to another feeding seat 310 along the feeding direction. The clamping member can have a state of clamping the rod and a state of releasing the rod.

[0034] The continuous feeding device of the present invention further comprises a driving assembly, which is used to drive the feeding seat 310 to move in a direction opposite to the feeding direction when the clutch member 330 is loosely sleeved on the driving rod 320 and the clamping member does not clamp the bar material;

[0035] The plurality of feeding mechanisms 300 at least include a first feeding mechanism 300a and a second feeding mechanism 300b. Figure 1As shown, in one embodiment, the second feeding mechanism 300b and the first feeding mechanism 300a are arranged at intervals along the feeding direction. In another embodiment, the second feeding mechanism 300b and the first feeding mechanism 300a are arranged at intervals along the direction opposite to the feeding direction. For the convenience of description, unless otherwise specified, the following embodiments all adopt that the second feeding mechanism 300b and the first feeding mechanism 300a are arranged at intervals along the feeding direction, that is, the second feeding mechanism 300b is located above the first feeding mechanism 300a.

[0036] like Figures 1 to 4 As shown, when the feeding device is working, when the feeding seat of the first feeding mechanism 300a moves to the lower stroke position along the feeding direction, the driving component drives the feeding seat of the first feeding mechanism 300a to move toward the upper stroke position in the direction opposite to the feeding direction, or, when the feeding seat of the second feeding mechanism 300b moves to the lower stroke position along the feeding direction, the driving component drives the feeding seat of the second feeding mechanism 300b to move toward the upper stroke position in the direction opposite to the feeding direction, and the upper stroke position and the lower stroke position are arranged at intervals along the feeding direction.

[0037] Specifically, when the clutch 330 of the first feeding mechanism 300a and its corresponding driving rod 320 are tightly engaged, for example, after the clutch 330 and the driving rod 320 are tightly engaged, the screw nut is engaged to drive the driving rod 320 to rotate, so that the feeding seat 310 of the first feeding mechanism 300a can be moved along the feeding direction. For another example, the driving rod 320 can be driven by a cylinder, and after the clutch 330 and the driving rod 320 are tightly engaged, the driving rod 320 can move the feeding seat 310 of the first feeding mechanism 300a along the feeding direction. In the process of the feeding seat 310 of the first feeding mechanism 300a moving along the feeding direction, when the clamping member of the first feeding mechanism 300a clamps the rod material, it can transport the rod material to the stirring head 11 for feeding. When the feeding seat 310 of the first feeding mechanism 300a moves to the lower stroke position, it can transport the rod material into the stirring head 11 for feeding. Figure 2 As shown, when the feeding seat 310 is in the lower stroke position, the clutch 330 can be in a state of separation from the driving rod 320. At this time, the clutch 330 is loosely mounted on the driving rod 320, that is, even if the driving rod 320 continues to rotate or move, it will not drive the feeding seat 310 to move further along the feeding direction.

[0038] When the feeding seat 310 of the first feeding mechanism 300a moves to the lower stroke position, the feeding seat 310 of the second feeding mechanism 300b can be located at the upper stroke position, or between the lower stroke position and the upper stroke position, and the clutch 330 of the second feeding mechanism 300b is tightly clamped and cooperated with the driving rod 320 of the second feeding mechanism 300b, and the clamping member of the second feeding mechanism 300b clamps the bar material, and by driving the driving rod 320 of the second feeding mechanism 300b to rotate, the feeding seat 310 of the second feeding mechanism 300b can be moved along the feeding direction.

[0039] When the feeding seat 310 of the first feeding mechanism 300a moves to the lower stroke position, the driving assembly can be used to drive the feeding seat 310 toward the upper stroke position. During the upward movement, the clamping piece of the first feeding mechanism 300a is in a state of loosening the rod. When the feeding seat 310 of the first feeding mechanism 300a moves to the upper stroke position, or between the upper stroke position and the lower stroke position, the clamping piece of the first feeding mechanism 300a is controlled to clamp the rod, and then together with the clamping piece of the second feeding mechanism 300b, the rod is clamped and moved along the feeding direction to realize the transportation of the rod.

[0040] like Figure 3 As shown, when the feeding seat 310 of the second feeding mechanism 300b moves to the lower stroke position, the clamping member of the second feeding mechanism 300b can be controlled to release the rod material, and then the driving assembly is used to drive the feeding seat 310 of the second feeding mechanism 300b to move to the upper stroke position, or between the upper stroke position and the lower stroke position, and then the clamping member of the second feeding mechanism 300b is controlled to clamp the rod material and jointly clamp the rod material with the clamping member of the first feeding mechanism 300a and move along the feeding direction to realize the transportation of the rod material.

[0041] In this way, the present application drives the feeding seat 310 to move toward the lower stroke position through the driving rod 320. When the feeding seat 310 moves to the lower stroke position, the clutch 330 can be emptied on the driving rod 320, and then the feeding seat 310 is driven by the driving assembly to quickly move toward the upper stroke position in the direction opposite to the feeding direction. When the feeding seat 310 moves to the upper stroke position, or between the upper stroke position and the lower stroke position, the clutch 330 can be tightly clamped and tightly matched with the driving rod 320, and then the driving rod 320 The feeding seat 310 is driven to move along the feeding direction. Furthermore, a first feeding mechanism 300a and a second feeding mechanism 300b are provided, so that when necessary, the clutch 330 of the first feeding mechanism 300a and / or the clutch 330 of the second feeding mechanism 300b are controlled to tightly cooperate with the driving rod 320, and when necessary, the clutch 330 of the first feeding mechanism 300a or the clutch 330 of the second feeding mechanism 300b are controlled to separate from the driving rod 320, and this cycle is repeated to achieve continuous feeding.

[0042] In one embodiment, if Figure 1 As shown, the continuous feeding device further includes a material guide member 12 and an auxiliary pressure rod member 13. The material guide member 12 has a material guide channel, and the material guide channel is directly opposite to the feeding port of the feeding seat 310. In the above-mentioned continuous rod feeding process, when a rod shortage signal appears, the rod 9 can fall into the material guide channel, and then the auxiliary pressure rod member 13 presses the newly fallen rod 9, so that there is no gap between the upper and lower rods 9, thereby realizing the continuous rod feeding function.

[0043] In one embodiment, the driving rod 320 has a threaded section, for example, the driving rod 320 can be a screw rod. In a first state, the clutch 330 and the threaded section of the driving rod 320 are tightly threadedly matched, and in a second state, the clutch 330 and the threaded section of the driving rod 320 are loosened and separated, and the clutch 330 is loosely sleeved on the threaded section of the driving rod 320. In this way, the transmission method such as a screw rod is adopted to ensure smooth feeding.

[0044] In one embodiment, one motor can be used to drive the driving rod 320 of the first feeding mechanism 300a to rotate, and another motor can be used to drive the driving rod 320 of the second feeding mechanism 300b to rotate, that is, two motors are used to drive the first feeding mechanism 300a and the second feeding mechanism 300b to work respectively.

[0045] In another embodiment, if Figure 1 As shown, the driving rod 320 of the first feeding mechanism 300a and the driving rod 320 of the second feeding mechanism 300b are coaxially connected and are constructed as a driving rod assembly, and the driving rod assembly is coupled with the driving motor power, wherein the driving rod assembly can be an integrated structure or two driving rods 320 are welded together, and there is no specific limitation. In this way, a motor can be set to simultaneously drive the feeding seat 310 of the first feeding mechanism 300a and the feeding seat 310 of the second feeding mechanism 300b to move, so that on the basis of being able to achieve continuous feeding, its structure is simple and reliable, and the transportation stability can also be guaranteed. And because there is only one power source, the deposition thrust can be kept stable in a controllable range at all times, and there will be no sudden thrust changes.

[0046] In a specific example, Figure 1 As shown, two drive rod assemblies may be provided. In another embodiment, more than two drive rod assemblies may be provided.

[0047] In one embodiment, if Figure 1As shown, the output end 410 of the driving motor is located at the side of the second feeding mechanism 300b away from the first feeding mechanism 300a, and the driving rod assembly includes multiple driving rod assemblies, and the multiple driving rod assemblies are all coupled to the output end 410 of the driving motor. In this way, by setting a driving motor, multiple driving rod assemblies can be driven to rotate at the same time, thereby driving the first feeding mechanism 300a and the second feeding mechanism 300b to work. Compared with setting two driving motors to drive the first feeding mechanism 300a and the second feeding mechanism 300b to work respectively, the driving force output by one driving motor is relatively stable and easy to control, avoiding the phenomenon of two driving motors being out of sync, and since there is only one power source, the deposition thrust can be kept stable in a controllable range at all times, and there will be no thrust mutation and the like.

[0048] In one embodiment, if Figure 1 As shown, the continuous feeding device further includes a driving wheel 411 and a plurality of transmission wheels 412, wherein the driving wheel 411 is connected to the output end 410 of the driving motor by power coupling, and the plurality of transmission wheels 412 are arranged one by one with the plurality of driving rod assemblies, for example, the plurality of driving rod assemblies extend to the corresponding transmission wheels 412 and are fixedly connected to the transmission wheels 412, and the driving wheel 411 is connected to the plurality of transmission wheels 412 by power coupling. In this way, it is realized that one driving motor is set to drive the plurality of driving rod assemblies to rotate at the same time.

[0049] In one embodiment, the driving wheel 411 includes a pulley portion, and the pulley portion is connected to the plurality of transmission wheels 412 through a transmission belt power coupling. Such a transmission is simple and reliable, and is conducive to avoiding the transportation of bar materials.

[0050] In another embodiment, the driving wheel 411 may be a gear, which includes a gear portion, and the gear portion is meshed with a plurality of transmission wheels 412 for transmission. The plurality of transmission wheels 412 are also gears, and the gear transmission is stable and reliable.

[0051] In one embodiment, if Figure 1 As shown, a machine base 400 is also included, and a plurality of feeding seats 310 are movably arranged vertically on the machine base 400. In this way, when the feeding seats 310 move to the lower stroke position, when the clamping member is in a state where the bar is not clamped, the feeding seats 310 can be moved to the upper stroke position, and then the clamping member clamps the bar to achieve continuous feeding.

[0052] There are many ways to drive the feeding seat 310 to move on the machine base 400. In one embodiment, the continuous feeding device of the present invention further includes a guide rail 340 and a guide slide seat 350 that cooperate with each other, one of the guide rail 340 and the guide slide seat 350 is arranged on the machine base 400, and the other is arranged on the feeding seat 310. In this way, the feeding seat 310 can be driven to slide on the machine base 400. In another embodiment, a screw nut transmission can also be used to drive the feeding seat 310 to move on the machine base 400.

[0053] In one embodiment, the driving assembly includes a driving member 360, and the driving member 360 includes a driving seat and a movable rod, and the movable rod and the driving seat can be relatively movable. For example, the driving member 360 can be a cylinder, and when the movable rod is fixed, the driving seat can move relative to the movable rod, and when the driving seat is fixed, the movable rod can move relative to the driving seat. For another example, the driving member 360 can be a mechanism similar to a screw nut, and its driving source can be a motor, which is arranged in the driving seat, and the motor drives the nut to rotate, and when the driving seat is fixed, the movable rod can move relative to the driving seat and the nut, and when the movable rod is fixed, the driving seat and the nut can move relative to the movable rod.

[0054] In a specific embodiment, the driving member 360 is taken as a cylinder. The driving seat is connected to one of the two feeding seats 310, and the movable rod is connected to the other of the two feeding seats 310. For example, the driving seat is mounted on the feeding seat 310 of the first feeding mechanism 300a, and the output end of the movable rod is mounted on the feeding seat 310 of the second feeding mechanism 300b, or the driving seat is mounted on the feeding seat 310 of the second feeding mechanism 300b, and the output end of the movable rod is mounted on the feeding seat 310 of the first feeding mechanism 300a. In a specific embodiment, for example, the driving seat is mounted on the feeding seat 310 of the first feeding mechanism 300a, and the output end of the movable rod is mounted on the feeding seat 310 of the second feeding mechanism 300b. When the feeding seat 310 of the second feeding mechanism 300b moves to the lower stroke position, the clutch 330 of the second feeding mechanism 300b is emptied on the driving rod 320. At this time, because the feeding seat 310 of the first feeding mechanism 300a and the driving rod 320 are in a matched state, the driving seat is relatively fixed, and the feeding seat 310 of the second feeding mechanism 300b can be driven to move toward the upper stroke position by the movable rod. When the feeding seat 310 of the first feeding mechanism 300a moves to the lower stroke position, the clutch 330 of the first feeding mechanism 300a is emptied on the driving rod 320. At this time, because the feeding seat 310 of the second feeding mechanism 300b and the driving rod 320 are in a matched state, the movable rod is relatively fixed, and the movable rod can be used to drive the driving seat to move, thereby driving the feeding seat 310 of the first feeding mechanism 300b to move toward the upper stroke position.

[0055] In one embodiment, if Figure 1 As shown, the feeding mechanism 300 further includes a lower stroke position detection element 370, which is disposed on the machine base 400. The lower stroke position detection element 370 is used to detect whether the feeding seat 310 is located at the lower stroke position. When the feeding seat 310 is located at the lower stroke position, the corresponding clamping member can be controlled to release and the clutch member 330 can be released and separated.

[0056] In one embodiment, the feeding mechanism 300 further includes a lower limit position detection element 380, which is disposed on the machine base 400. The lower limit position detection element 380 is used to detect whether the feeding seat 310 is located at the lower limit position. Normally, when the lower stroke position detection element 370 detects that the feeding seat 310 is located at the lower stroke position, it controls the corresponding clamping member to release and the clutch member to release and separate, and the feeding seat 310 will not continue to move to the lower limit position under the transmission of the driving rod. If the lower limit position detection element 380 detects that the feeding seat 310 is located at the lower limit position, it is necessary to stop the machine for maintenance, and the lower limit position detection element 380 plays a protective role.

[0057] In one embodiment, if Figure 4 As shown, in the initial state of the present application, the feeding seat 310 of the second feeding mechanism 300b is arranged close to the upper stroke position, and the feeding seat 310 of the first feeding mechanism 300a is arranged close to the lower stroke position. In this way, it is difficult for the feeding seat 310 of the second feeding mechanism 300b and the feeding seat 310 of the first feeding mechanism 300a to be in the lower stroke position at the same time.

[0058] If the feeding seat 310 of the second feeding mechanism 300b and the feeding seat 310 of the first feeding mechanism 300a are both in the lower stroke position, it is necessary to control the feeding seat 310 of the second feeding mechanism 300b or the feeding seat 310 of the first feeding mechanism 300a to move quickly toward the upper stroke position, for example, control the feeding seat 310 of the second feeding mechanism 300b to move quickly toward the upper stroke position, and then control the clamping part of the second feeding mechanism 300b to clamp the rod 9, and the clutch part 330 of the second feeding mechanism 300b to hold tightly, and then control the clamping part of the first feeding mechanism 300a to release the rod, so as to achieve continuous pressure of the rod on the substrate. The distance between the lower stroke position and the lower limit position can be used as a buffer distance for the feeding seat 310 of the first feeding mechanism 300a to move, that is, in the process of controlling the feeding seat 310 of the second feeding mechanism 300b to move toward the upper stroke position, the feeding seat 310 of the first feeding mechanism 300a can continue to move toward the lower limit position. When the clamping member of the second feeding mechanism 300b clamps the bar material and the clutch member 330 of the second feeding mechanism 300b is tightly clamped, the clamping member of the first feeding mechanism 300a is controlled to release the bar material and the clutch member 330 of the first feeding mechanism 300a is released and separated, and then the feeding seat of the first feeding mechanism 300a is driven to move toward the upper stroke position.

[0059] In a specific embodiment, the clutch member 330 can be a product made by existing technology, such as a clutch, a shaft clamp, etc. The transmission matching and loosening separation of the nut and the screw rod are achieved through the tightening and loosening of the clutch and the shaft clamp.

[0060] This application also proposes a continuous feeding friction stirring additive device. Figure 1 As shown, the continuous feeding friction stir additive device includes the above-mentioned continuous feeding device and a movable main shaft 10, the main shaft 10 is provided with a rotatable stirring head 11, the stirring head 11 is provided with a stirring head accommodating space for accommodating the rod material 9, and the feeding port of the stirring head accommodating space is directly opposite to the feeding port of the feeding seat 310 of the multiple feeding mechanisms 300. The continuous feeding device continuously feeds the stirring head 11, thereby realizing continuous friction stir deposition manufacturing.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0063] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A continuous feeding device for friction stir additive, characterized in that: include: A plurality of feeding mechanisms, wherein the plurality of feeding mechanisms are arranged at intervals along a vertical direction, wherein the feeding mechanisms include a feeding seat and a driving rod, wherein the feeding seat is provided with a clutch, wherein the clutch has a first state of being tightly engaged with the driving rod and a second state of being loosened and separated from the driving rod, wherein when in the first state, the driving rod can drive the feeding seat to move in a feeding direction, and when in the second state, the clutch is loosely sleeved on the driving rod; The feeding seat is also provided with a feeding port and a clamping member, the clamping member is installed on the feeding seat and is suitable for clamping the additive rod, and the feeding ports of the feeding seats of the plurality of feeding mechanisms are directly opposite; A driving assembly, when the clutch member is emptied on the driving rod and the clamping member does not clamp the bar material, the driving assembly is used to drive the feeding seat to move in a direction opposite to the feeding direction; Among them, the multiple feeding mechanisms include at least a first feeding mechanism and a second feeding mechanism, when the feeding seat of the first feeding mechanism moves to a lower stroke position along the feeding direction, the driving component drives the feeding seat of the first feeding mechanism to move toward an upper stroke position in a direction opposite to the feeding direction, and / or, when the feeding seat of the second feeding mechanism moves to a lower stroke position along the feeding direction, the driving component drives the feeding seat of the second feeding mechanism to move toward an upper stroke position in a direction opposite to the feeding direction, and the upper stroke position and the lower stroke position are spaced apart along the feeding direction.

2. The device according to claim 1, characterized in that The drive rod has a threaded section. In a first state, the clutch is threadedly engaged with the threaded section of the drive rod. In a second state, the clutch is loosened and separated from the threaded section of the drive rod, and the clutch is loosely sleeved on the threaded section of the drive rod.

3. The device according to claim 1 or 2, characterized in that: The driving rod of the first feeding mechanism and the driving rod of the second feeding mechanism are coaxially connected to form a driving rod assembly, and the driving rod assembly is power-coupled to the driving motor.

4. The device according to claim 3, characterized in that The output end of the driving motor is located at a side of the second feeding mechanism away from the first feeding mechanism. The driving rod assemblies include a plurality of driving rod assemblies, and the plurality of driving rod assemblies are all power-coupled to the driving motor.

5. The device according to claim 4, characterized in that The feeding device also includes a driving wheel and a plurality of transmission wheels, the driving wheel is power-coupled with the output end of the driving motor, the plurality of transmission wheels are arranged in a one-to-one correspondence with the plurality of driving rod assemblies, and the driving wheel and the plurality of transmission wheels are power-coupled.

6. The device according to claim 5, characterized in that The driving wheel includes a pulley portion, and the pulley portion is connected to the plurality of transmission wheels through a transmission belt power coupling, or the driving wheel includes a gear portion, and the gear portion is meshed and transmitted with the plurality of transmission wheels.

7. The device according to claim 1, characterized in that It also includes a machine base, and a plurality of feeding seats are movably arranged on the machine base in the vertical direction.

8. The device according to claim 7, characterized in that It also includes a guide rail and a guide slide seat that cooperate with each other, one of the guide rail and the guide slide seat is arranged on the machine base, and the other is arranged on the feeding base.

9. The device according to claim 1, characterized in that The driving assembly includes a driving member, which includes a driving seat and a movable rod. The movable rod and the driving seat can be relatively movably arranged. The driving seat is connected to one of the two feeding seats, and the movable rod is connected to the other of the two feeding seats.

10. The device according to claim 9, characterized in that The driving member is a cylinder.

11. A continuous feeding friction stir additive device, characterized in that: include: The continuous feeding device according to any one of claims 1 to 10.

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