A friction stir coating device

Abstract

The application discloses a friction stir coating device, which comprises a sliding support, a sliding plate movably installed on the sliding support and capable of sliding along the length direction of the sliding support, a rotating sleeve rotatably installed on the sliding plate, a stirring tool movably installed on the rotating sleeve and used for holding a deposition rod, and a driving member in transmission connection with the rotating sleeve and capable of sliding and supporting the deposition rod relative to the rotating sleeve. The application has the advantages of facilitating the realization of friction stir deposition, good stirring effect of the stirring tool, wear resistance, easy disassembly and maintenance, and the like.

Description

Technical Field

[0001] This invention relates to a friction stirring device, and more specifically to a friction stirring coating device. Background Technology

[0002] Friction stirring deposition is a solid metal additive manufacturing method that has been developed in recent years. This additive method does not require melting the metal, thus avoiding a series of problems caused by metal melting and rapid cooling, such as adverse reactions at high temperatures, obvious grain growth orientation, easy generation of abnormally large grains, easy generation of micropores, and weak interlayer bonding.

[0003] However, currently, friction agitation deposition equipment is mainly produced by MELD Corporation in the United States. Their equipment is complex and difficult to obtain, limiting the widespread application of this technology. Furthermore, the agitation tools used by MELD are typically dotted with protrusions, which are prone to wear during composite material processing and can easily adhere to the deposited material. They are also usually monolithic, meaning that if a deposition rod gets stuck, it cannot be removed by disassembling the agitation tool. Summary of the Invention

[0004] The purpose of this invention is to provide a friction stirring coating device to address the shortcomings of existing technologies.

[0005] In order to achieve the above-mentioned objectives of the present invention, the following technical solution is adopted:

[0006] A friction stirring coating apparatus includes a sliding support; a sliding plate mounted on the sliding support and slidable along the length of the sliding support; a rotating sleeve rotatably mounted on the sliding plate; a stirring tool movably mounted on the rotating sleeve and used to hold a deposition rod; and a driving component, the driving component being kinetically connected to the rotating sleeve and slidingly supporting the deposition rod relative to the rotating sleeve.

[0007] Furthermore, the friction stirring coating device of the present invention further includes a first thrust plane bearing, a second thrust plane bearing, and a pressure plate; the slide plate has a support hole, and a support platform is provided on the inner side of the top of the support hole; one end of the rotating sleeve is inserted into the top of the support hole and connected to the first thrust plane bearing and the second thrust plane bearing; the pressure plate supports the first thrust plane bearing, the second thrust plane bearing, and the rotating sleeve is placed in the support hole, and the first thrust plane bearing is in contact with the support platform, while the pressure plate and the slide plate are fixedly connected by multiple screws.

[0008] Furthermore, the rotating sleeve includes a positioning support, a boss, and a rotating body; the positioning support has a boss on one side and a rotating body on the other side; the boss has a conical hole; the rotating body has a sliding groove and a guide bar groove, and the guide bar groove communicates with the conical hole.

[0009] Furthermore, the sliding support includes a fixed support, a guide rod, and a slider; fixed supports are installed at both ends of the guide rod; the slider is slidably installed on the guide rod; wherein the slider and the slide plate are connected by multiple screws.

[0010] Furthermore, the stirring tool has a spliced ​​structure, comprising two half-stirring tools that are aligned and spliced ​​together; the half-stirring tools are connected to the rotating sleeve via screws.

[0011] Furthermore, the half-stirring tool includes a supporting boss, a supporting platform, a positioning support platform, and a conical body; the positioning support platform has a supporting platform on one side and a conical body on the other side; the supporting platform has a supporting boss, and the end face of the supporting boss is circumferentially provided with multiple V-shaped grooves; the supporting boss, supporting platform, positioning support platform, and conical body are provided with through grooves, and the edge of the groove and the supporting boss is chamfered.

[0012] Furthermore, the width of the groove increases from the conical body to the supporting boss.

[0013] Furthermore, the driving component includes a tool holder and a sliding sleeve; one end of the sliding sleeve is connected to the tool holder, and the other end is connected to the rotating sleeve via a transmission connection.

[0014] Furthermore, the sliding sleeve is provided with a top core, and a sliding track is opened on each of the corresponding two sides of the top core.

[0015] Furthermore, the driving component of the present invention also includes a push rod; the push rod is movably inserted into the rotating sleeve to support the deposition rod and is connected to the sliding sleeve for transmission.

[0016] The advancements of this invention compared to existing technologies are as follows:

[0017] 1. This invention features friction-stirred deposition, resulting in a coating that bonds firmly to the substrate. In this invention, a rotating sleeve is rotatably mounted on a sliding sleeve, and a stirring tool is movably mounted on the rotating sleeve. The rotating sleeve facilitates the rotation of the stirring tool, which can be detached from the rotating sleeve for easy removal of the remaining deposition rod after processing. Furthermore, if a deposition rod becomes stuck, the stirring tool can be disassembled to facilitate the removal of the stuck deposition rod.

[0018] 2. The slide plate of the present invention can slide along the sliding support. The driving component applies a force to the rotating sleeve along the length of the sliding support, and the rotating sleeve drives the slide plate to slide along the sliding support. The driving component applies a rotational force to the rotating sleeve, and the rotating sleeve rotates. The slide plate and the slider on the sliding support are connected by a screw, which facilitates both the installation and removal of the slide plate from the slider. In addition, the height of the slide plate can be adjusted. When the height of the slide plate needs to be increased, the screw is loosened, a shim to be added between the slide plate and the slider, and then the screw is tightened to raise the height of the slide plate. The stirring tool is installed on the slide plate along with the rotating sleeve, thereby adjusting the distance between the stirring tool and the substrate.

[0019] 3. The stirring tool of the present invention adopts a spliced ​​structure, including two half-stirring tools, which are aligned and spliced ​​together; the half-stirring tools are connected to the rotating sleeve by screws. In production, if a sediment rod gets stuck in the stirring tool, the stuck sediment rod can be quickly removed by disassembling the two half-stirring tools.

[0020] 3. The supporting boss of the stirring tool of the present invention has a flared mouth in the middle and multiple spaced V-shaped grooves are formed on the circumference of its top surface. The edge of the flared mouth is chamfered. The rotating sleeve drives the two halves of the stirring tool to rotate. The material around the sedimentation rod and the stirring tool is centrifugally discharged out of the stirring tool through the V-shaped grooves, which avoids the material from being deposited between the sedimentation rod and the stirring tool, and also prevents the sedimentation rod from getting stuck due to the material being deposited in the gap between the sedimentation rod and the stirring tool.

[0021] 4. In this invention, the sliding sleeve is fitted onto the rotating sleeve and can slide up and down relative to the rotating sleeve. When sliding down relative to the rotating sleeve, the sliding sleeve pushes the push rod, the push rod pushes the deposition rod, and the deposition rod feeds into the substrate. The two spaced rotating bodies on the rotating sleeve are correspondingly inserted into the two spaced slides on the sliding sleeve. Therefore, the sliding sleeve can drive the rotating sleeve to rotate. The sliding sleeve, being fitted onto the rotating sleeve, can also push the rotating sleeve to slide in the horizontal direction. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0023] Figure 1 This is a schematic diagram of the structure of a friction stirring coating device according to the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of a friction stirring coating device of the present invention at another rotation angle;

[0025] Figure 3 This is a schematic diagram of the structure between the stirring tool, pressure plate, second thrust plane bearing, rotating sleeve and first thrust plane bearing in this invention;

[0026] Figure 4 This is a schematic diagram of the unfolded structure of a friction stirring coating device according to the present invention;

[0027] Figure 5 This is a schematic diagram of the connection between the stirring tool, pressure plate, rotating sleeve, sliding sleeve, and knife handle in this invention;

[0028] Figure 6 This is a schematic diagram of the unfolded structure between the stirring tool, rotating sleeve, sliding plate, and sliding sleeve in this invention;

[0029] Figure 7 This is a schematic diagram of the rotating sleeve in this invention;

[0030] Figure 8 This is a schematic diagram showing another rotation angle of the rotating sleeve in this invention;

[0031] Figure 9 This is a schematic diagram showing another rotation angle of the rotating sleeve in this invention;

[0032] Figure 10 This is a schematic diagram of the disassembled structure of the stirring tool in this invention;

[0033] Figure 11 This is a schematic diagram of the assembled structure of the stirring tool in this invention;

[0034] Figure 12 This is a schematic diagram of the connection structure between the stirring tool and the push rod in this invention;

[0035] The names and serial numbers of each component in the diagram are as follows:

[0036] 1-Sliding support, 11-Slider, 111-Settling tank, 12-Guide rod, 13-Fixed support, 2-Pressure plate, 3-Second thrust plane bearing, 4-Stirring tool, 41-Conical body, 42-Positioning support platform, 43-Positioning hole, 44-Support platform, 45-Supporting boss, 46-V-groove, 47-Chamfer, 48-Slide groove, 5-Rotating sleeve, 51-Rotating body, 52-Boss, 53-Conical hole, 54-Positioning screw hole, 55-Positioning support platform, 56-Guide rod groove, 55-Sliding groove, 6-Push rod, 7-First thrust plane bearing, 8-Slide plate, 81-Supporting hole, 9-Sliding sleeve, 91-Slide path, 92-Top core, 10-Knife handle, 101-Fixed end, 102-Supporting end, 14-Deposition rod. Detailed Implementation

[0037] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments in this application. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0038] Example 1:

[0039] like Figures 1 to 12 As shown, the present invention discloses a friction stirring coating apparatus for applying friction stirring deposition coating to a substrate. The structure includes a sliding support 1, a sliding plate 8, a rotating sleeve 5, a stirring tool 4, and a driving component. The sliding plate 8 is mounted on the sliding support 1 and can slide along the length of the sliding support 1; the rotating sleeve 5 is rotatably mounted on the sliding plate 8; the stirring tool 4 is movably mounted on the rotating sleeve 5 and is used to hold the deposition rod 14; the driving component is connected to the rotating sleeve 5 and slides relative to the rotating sleeve 5 to support the deposition rod 14.

[0040] It should be noted that the sliding support 1 supports the slide plate 8 to slide horizontally. To ensure more stable sliding, two sliding supports are typically installed. The two sliding supports are arranged in parallel with a gap between them, and the two ends of the slide plate are movably mounted on the corresponding sliding supports. The two sliding supports provide more stable guidance and support for the slide plate's movement.

[0041] It should also be noted that the drive component can be mounted on a CNC machine tool, with the CNC machine tool serving as the power source for the drive component. The CNC machine tool then controls the operation of the drive component. The CNC milling machine can be set to control the feed rate f of the coating material, the rotational speed r of the stirring tool, and the movement speed v of the stirring tool.

[0042] Understandably, during work:

[0043] The friction stirring coating device of this invention is installed on the worktable of a CNC milling machine. The driving component is connected to the spindle of the CNC milling machine. Two sliding supports are installed parallel and spaced on the worktable of the CNC milling machine. The sliding supports are adjusted with a dial indicator so that the center line of the sliding supports is parallel to the X-axis movement direction of the machine tool, and the sliding supports are fixed on the worktable of the CNC milling machine. The substrate to be coated is then installed between the two sliding supports. The stirring tool 4 is movably installed on the rotating sleeve 5, the rotating sleeve 5 is rotatably installed on the slide plate 8, and the two ends of the slide plate 8 are movably installed on the corresponding sliding supports 1. The deposition rod 14 is then inserted into the rotating sleeve 5 and the stirring tool 4 in sequence, and lowered to contact the substrate.

[0044] Then, the rotating sleeve 5 is aligned with the driving component, and the CNC milling machine spindle is lowered so that the driving component and the rotating sleeve 5 are connected by transmission. The CNC milling machine runs according to the set coating material feed speed f, stirring tool rotation speed r, and stirring tool movement speed v. The CNC milling machine spindle controls the driving component to perform corresponding operation. The driving component then drives the rotating sleeve to follow the operation. The rotating sleeve 5 drives the stirring tool 4, and the stirring tool 4 drives the deposition rod 14 to perform corresponding friction stirring deposition coating operation.

[0045] In some embodiments of this disclosure, one structure of the driving component is provided. For example... Figure 1-6 As shown, the driving component includes a tool holder 10, a push rod 6, and a sliding sleeve 9; one end of the sliding sleeve 9 is connected to the tool holder 10, and the other end is connected to the rotating sleeve 5; the push rod 6 is movably inserted into the rotating sleeve 5 and supported on the deposition rod 14, and is connected to the sliding sleeve 9.

[0046] like Figure 4 The diagram illustrates one structure of a tool holder. The tool holder 10 includes a fixed end 101, a support end 102, and a limiting platform 103. The fixed end 101 is mounted on one side of the limiting platform 103, and the support end 102 is provided on the other side. The fixed end 101 is connected to the spindle of a CNC milling machine. The support end 102 is connected to a sliding sleeve 9; the sliding sleeve 9 is fitted onto the support end 102.

[0047] The sliding sleeve 9 and the support end 102 can be connected by a screw. The circumferential surface of the sliding sleeve 9 is spaced at least 3 threaded holes, and the number of threaded holes can usually be 3, 4, 5 or 6, etc. The screw is screwed into the threaded hole and supported on the support end 102. Tightening the screw will fix the sliding sleeve to the support end 102.

[0048] The fixed end 101 on the CNC milling machine spindle drives the tool holder 10, and the supporting end 102 on the tool holder 10 drives the sliding sleeve 9 to perform corresponding actions. The sliding sleeve 9 can slide relative to the rotating sleeve 5 and drive the rotating sleeve to perform corresponding actions, such as enabling the rotating sleeve 5 to achieve the set coating material feed speed f, stirring tool rotation speed r, and stirring tool movement speed v; thereby the stirring tool 4 drives the deposition rod 14 to perform corresponding actions on the corresponding substrate.

[0049] In some embodiments of this disclosure, a rotatable connection structure between the rotating sleeve and the sliding plate is provided. For example... Figure 3 and 4As shown, a first thrust plane bearing 7, a second thrust plane bearing 3, and a pressure plate 2 are added. The slide plate 8 has a support hole 81, and a support platform 82 is provided on the inner side of the top of the support hole 81. One end of the rotating sleeve 5 is inserted into the top of the support hole 81 and connected to the first thrust plane bearing 7 and the second thrust plane bearing 3. The pressure plate 2 supports the first thrust plane bearing 7, the second thrust plane bearing 3, and the rotating sleeve 5 in the support hole 81, and the first thrust plane bearing 7 is attached to the support platform 82. The pressure plate 2 and the slide plate 8 are fixedly connected by multiple screws.

[0050] The pressure plate 2 and the slide plate 8 can be fixedly connected by 3, 4, 5 or 6 screws.

[0051] like Figure 4-6 As shown, one end of the rotating sleeve 5 is clamped by the first thrust plane bearing 7 and the second thrust plane bearing 3. When the bolt is tightened, the pressure plate 2 presses the first thrust plane bearing 7 and the second thrust plane bearing 3 into the support hole 81, and the first thrust plane bearing 7 and the second thrust plane bearing 3 clamp the rotating sleeve 5 and fix it in the support hole 81. The rotating sleeve 5 can rotate relative to the slide plate 8 under the action of the first thrust plane bearing 7 and the second thrust plane bearing 3.

[0052] In some embodiments of this disclosure, a structure for a rotating sleeve is provided. For example... Figure 7-9 As shown, the rotating sleeve 5 includes a positioning support 55, a boss 52, and a rotating body 51; the positioning support 55 has a boss 52 on one side and a rotating body 51 on the other side; the boss 52 has a conical hole 53; the rotating body 51 has a sliding groove 55 and a guide rod groove 56, and the guide rod groove 56 is connected to the conical hole 53.

[0053] like Figure 8 As shown, the boss 52 is used to connect with the second thrust plane bearing 3, and the positioning platform 55 is used to realize the clamping of the rotating sleeve 5 between the first thrust plane bearing 7 and the second thrust plane bearing 3. The pressure plate 2 presses the second thrust plane bearing 3, the second thrust plane bearing 3 presses the positioning platform 55, and the positioning platform 55 presses the first thrust plane bearing 16 on the support hole 81. Tighten the bolts between the pressure plate 2 and the slide plate 8, and the pressure plate 2 fixes the first thrust plane bearing 7, the second thrust plane bearing 3 and the rotating sleeve 5 on the slide plate 8.

[0054] It should be noted that, in order to cooperate with the rotating body on the rotating sleeve, such as Figure 6 As shown, the sliding sleeve 9 is provided with two parallel sliding tracks 91 spaced apart from each other. The two rotating bodies 51 on the positioning platform 55 are slidably connected to the corresponding sliding tracks 91. A sliding groove 55 is provided between the two rotating bodies 51, so that the rotating bodies can be smoothly connected to the sliding tracks.

[0055] To facilitate the sliding of the push rod within the rotating sleeve and stirring tool, the sliding sleeve 9 is provided with a top core 92.

[0056] like Figure 9 As shown, each of the two rotating bodies 51 has a groove on its corresponding side, and the two grooves together form a guide rod groove 56. The push rod 6 is inserted into the guide rod groove 56 and can slide along the guide rod groove 56. Of course, when the sliding sleeve 9 slides downward relative to the rotating sleeve, the top core 92 on the sliding sleeve 9 is inserted into the guide rod groove 56 and can slide along the guide rod groove 56.

[0057] Understandably, the sedimentation rod 14 and the push rod 6 can be cuboids. The sedimentation rod 18 has a cuboid structure, which facilitates rotation by the stirring tool.

[0058] In some embodiments of this disclosure, a structure for a sliding support is provided. For example... Figure 1 , 2 As shown in Figure 4, the sliding support 1 includes a fixed support 13, a guide rod 12 and a slider 11; the fixed supports 13 are installed at both ends of the guide rod 12; the slider 11 is slidably installed on the guide rod 12; wherein, the slider 11 and the slide plate 8 are connected by multiple screws.

[0059] The slider 11 is slidably mounted on the guide rod 12. In order to make the slider slide better on the guide rod, a sliding bearing is added. The slider 11 and the guide rod 12 are connected by the sliding bearing. The slider 11 can slide smoothly along the guide rod with the help of the sliding bearing.

[0060] When the pressure plate 2 is installed on the slide plate 8, the pressure plate 2 protrudes from the surface of the slide plate 8. In order to facilitate the slide plate to be attached to the slider 11, the slider 11 has a recess 111. When the pressure plate 2 is installed on the slider 11 along with the slide plate 8, the pressure plate is inserted into the recess 111.

[0061] The slider 11 and the slide plate 8 are usually fixed together by 3, 4, 5 or 6 screws.

[0062] Both ends of the slide plate 8 are bolted to the corresponding sliders 11, which facilitates both the connection and disassembly of the slide plate and slider. Furthermore, it allows for adjustment of the distance between the slide plate and the substrate, thereby adjusting the distance between the stirring tool 4 and the substrate, and ultimately adjusting the coating height. One method for adjusting the coating height is as follows: After coating one layer of material, loosen the bolts between the slider 11 and the slide plate 8, place a shim of similar thickness to the coating on top of the slider 11, adjust it, and then tighten the bolts between the slider 11 and the slide plate 8. Under the action of the bolts, the slider 11 and the slide plate 8 are fixedly connected, and the slider 11 and the slide plate 8 clamp the shim, limiting the distance between the stirring tool and the coating. Another layer can then be deposited on top of the previous layer. This process is repeated until the desired deposition height is achieved.

[0063] In some embodiments of this disclosure, a structure for a stirring tool is provided. For example... Figure 10 , 11 As shown, the stirring tool 4 is a spliced ​​structure, including two half-stirring tools, which are aligned and spliced ​​together; the half-stirring tools are connected to the rotating sleeve 5 by screws.

[0064] Furthermore, the half-stirring tool includes a supporting boss 45, a supporting platform 44, a positioning support platform 42, and a conical body 41; the positioning support platform 42 has a supporting platform 44 on one side and a conical body 41 on the other side; the supporting platform 44 has a supporting boss 45, and the end face of the supporting boss 45 is circumferentially provided with multiple V-shaped grooves 46; the supporting boss 45, the supporting platform 44, the positioning support platform 42, and the conical body 41 are provided with a through groove 48, and a chamfer 47 is provided at the connection between the groove 48 and the edge of the supporting boss 45. The width of the groove 48 increases from the conical body 41 to the supporting boss 45.

[0065] like Figure 7 As shown, the end face of the boss 52 of the rotating sleeve 5 has screw holes distributed around its circumference. Half of the stirring tool is inserted into the rotating sleeve, and the positioning support platform 42 and the boss 52 can be connected by a screw. The holes on the positioning support platform 42 are countersunk holes, which facilitates the sinking of the screw nut into the holes.

[0066] Two conical bodies 41 are inserted into the conical holes 53 of the rotating sleeve 5 and spliced ​​together, and the positioning support platform 42 is connected to the boss by a screw, thus realizing the splicing of the two conical bodies. The conical structure obtained after splicing the two conical bodies 41 can have a taper of 16° to 18°, such as 16°, 17° or 18°.

[0067] Understandably, after the two halves of the stirring tool are installed on the rotating sleeve, the sliding grooves 48 of the two halves of the stirring tool are joined together to form a deposition rod through groove. In use, the deposition rod can be slidably inserted into the deposition rod through groove of the stirring tool 4 through the guide rod groove 56 of the rotating sleeve, and then supported on the substrate 10 through the deposition rod through groove of the stirring tool 4.

[0068] The width of the chute 48 increases progressively from the conical body 41 to the supporting boss 45. After the two halves of the stirring tool are joined together, the two chutes are joined to form a sedimentation rod channel with a slightly tapered funnel-shaped structure. The taper can be 1°.

[0069] It should be noted that the stirring tool consists of two halves, which are connected to the rotating sleeve via screws, allowing for a detachable connection between the stirring tool and the rotating sleeve. In production, if a sediment rod becomes stuck in the stirring tool, the stuck sediment rod can be removed by disassembling both halves of the stirring tool.

[0070] like Figure 11 , 12As shown, the support boss 45 has a flared opening in the middle, and multiple spaced V-shaped grooves are formed around its top surface. The depth of the V-shaped grooves can be 0.8 to 1 mm. Commonly used depths are 0.8 mm, 0.9 mm, or 1 mm. The edge of the flared opening is chamfered at 47. The rotating sleeve drives the two half-stirring tools to rotate. The material around the sedimentation rod and the stirring tools is centrifugally discharged out of the stirring tools through the V-shaped grooves 46, preventing material from accumulating between the sedimentation rod and the stirring tools, and also preventing the sedimentation rod from jamming due to material accumulation in the gap between the sedimentation rod and the stirring tools.

[0071] According to the above embodiments of the present invention, the specific working method of the present invention is as follows:

[0072] The invention is installed on the CNC milling machine worktable. The tool holder 10 and the sliding sleeve 9 are connected and fixed with screws, and the tool holder 10 is installed on the spindle of the CNC milling machine. The ultrasonic mechanism is installed as a whole on the CNC milling machine worktable, and the base plate 10 is fixed on the CNC milling machine worktable. Then, a sliding support 1 is installed on the support plate 5. The rotating sleeve 5 is installed on the slide plate 8 through the first thrust plane bearing 7, the second thrust plane bearing 3, and the pressure plate 2. The stirring tool 4 is positioned and installed on the rotating sleeve 5. Then, the slide plate 8 is fixedly connected to the slider 11 of the sliding support 1 with screws. Moving the slide plate 8 causes the rotating sleeve 5 to deviate from the sliding sleeve 9. Then, the deposition rod 14 is placed into the guide rod groove 56 of the rotating sleeve 5 and falls into the deposition rod through groove in the middle of the stirring tool 4. Then, it falls through the deposition rod through groove to the top surface of the base plate 10. Then, the push rod 6 is placed into the guide rod groove 56 and falls down to press against the deposition rod 14.

[0073] After installation, first use the calibration device to ensure that the sliding trajectory of the slide plate 8 is parallel to the X-axis or Y-axis of the CNC milling machine, and that the center of the rotating sleeve 5 is coaxial with the center of the CNC milling machine spindle. Then, set the coating material feed rate f, the tool head rotation speed r, and the tool head movement speed v according to the test requirements.

[0074] Then, the spindle of the CNC machine tool is moved down, so that the sliding sleeve 9 is fitted into the rotating sleeve 5. The CNC milling machine spindle is started. The CNC milling machine spindle runs according to the set coating material feed speed f, tool head rotation speed r and tool head movement speed v. The CNC milling machine spindle drives the tool holder 10 to rotate and descend. The tool holder 10 drives the sliding sleeve 9 to push the push rod 6 and the deposition rod 14 to descend. The deposition rod 14 hits the substrate. Under the support of the slide plate 8, the sliding sleeve 9 drives the rotating sleeve 5 to rotate and move. The stirring tool 4 carries the deposition rod 14. Under the action of the sliding sleeve 9 and the push rod 6, the deposition rod 14 moves along the sliding direction of the slide plate 8 while descending. The material is heated and softened by the friction between the deposition rod 14 and the substrate, and a deposition layer is coated on the substrate, that is, a coating layer is obtained on the surface of the substrate.

[0075] After the experiment, the slide plate 8 was removed from the sliding support 1, and together with the rotating sleeve 5 connected to the slide plate, the thrust plane bearing, the pressure plate 2, and the stirring tool 4, it was removed as a whole; then the substrate on the CNC milling machine table was disassembled to facilitate the study of the coating obtained on the substrate surface.

[0076] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A friction stirring coating device, characterized in that: include Sliding support (1); The sliding plate (8) is movably mounted on the sliding support (1) and can slide along the length of the sliding support (1); Rotating sleeve (5), which is rotatably mounted on the slide plate (8); A stirring tool (4) is movably mounted on a rotating sleeve (5) and used to hold a deposition rod (14); the rotating sleeve (5) includes a positioning platform (55), a boss (52), and a rotating body (51); the positioning platform (55) has a boss (52) on one side and a rotating body (51) on the other side; the boss (52) has a conical hole (53); the rotating body (51) has a sliding groove (57) and a guide rod groove (56), the guide rod groove (56) and the conical hole (53) are connected; and The driving component is connected to the rotating sleeve (5) and slides to support the deposition rod (14) relative to the rotating sleeve (5).

2. The friction stirring coating apparatus according to claim 1, characterized in that: It also includes a first thrust plane bearing (7), a second thrust plane bearing (3), and a pressure plate (2); The slide plate (8) has a support hole (81), and a support platform is provided on the inner side of the top of the support hole (81); One end of the rotating sleeve (5) is inserted into the top of the support hole (81) and connected to the first thrust plane bearing (7) and the second thrust plane bearing (3); The pressure plate (2) supports the first thrust plane bearing (7), the second thrust plane bearing (3), and the rotating sleeve (5) in the support hole (81), and the first thrust plane bearing (7) is attached to the support platform, while the pressure plate (2) and the slide plate (8) are fixedly connected by multiple screws.

3. The friction stirring coating apparatus according to claim 1, characterized in that: The sliding support (1) includes a fixed support (13), a guide rod (12) and a slider (11). Fixed supports (13) are installed at both ends of the guide rod (12); The slider (11) is slidably mounted on the guide rod (12); The slider (11) and the slide plate (8) are connected by multiple screws.

4. The friction stirring coating apparatus according to claim 1, characterized in that: The stirring tool (4) is a spliced ​​structure, including two half-stirring tools, which are aligned and spliced ​​together. The half-stirring tool and the rotating sleeve (5) are connected by a screw.

5. The friction stirring coating apparatus according to claim 4, characterized in that: The half-stirring tool includes a support boss (45), a support platform (44), a positioning support platform (42), and a cone (41). The positioning support platform (42) has a support platform (44) on one side and a cone (41) on the other side. The support platform (44) is provided with a support boss (45), and the end face of the support boss (45) is provided with a plurality of V-shaped grooves (46) spaced apart around the circumference. The supporting boss (45), supporting platform (44), positioning support platform (42), and conical body (41) are provided with through grooves (48), and the edge of the groove (48) and the supporting boss (45) are provided with chamfers (47).

6. The friction stirring coating apparatus according to claim 5, characterized in that: The width of the groove (48) increases from the cone (41) to the support boss (45).

7. The friction stirring coating apparatus according to any one of claims 1-5, characterized in that: The driving component includes a handle (10) and a sliding sleeve (9). One end of the sliding sleeve (9) is connected to the tool holder (10), and the other end is connected to the rotating sleeve (5) for transmission.

8. The friction stirring coating apparatus according to claim 7, characterized in that: The sliding sleeve (9) is provided with a top core (92), and a slide rail (91) is opened on each of the corresponding sides of the top core (92).

9. The friction stirring coating apparatus according to claim 7, characterized in that: It also includes a push rod (6); The push rod (6) is movably inserted into the rotating sleeve (5) and supported on the deposition rod (14), and is connected to the sliding sleeve (9) for transmission.

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