Ultrasonic additive manufacturing device and method

Abstract

The invention belongs to the technical field of additive manufacturing, and particularly relates to an ultrasonic additive manufacturing device and method.The device comprises a machine frame, an ultrasonic device and a control system, the motion module is in sliding fit with the bottom plate, and a base material plate is mounted on the motion module; the unwinding mechanism is installed on the base and used for conveying the coiled material so that the coiled material can be conveyed to the position above the base material plate; the ultrasonic roll welding unit is mounted on the base and used for welding and forming the coiled material and the base material plate; a coiled material is conveyed to a base material plate through an unwinding mechanism, a motion module is linked with the base material plate to reciprocate relative to an ultrasonic roll welding unit, and meanwhile the coiled material is welded to the base material plate through the ultrasonic roll welding unit, so that lamination material adding is conducted on the base material plate; continuous material adding can be achieved, the surface roughness of machining forming of complex parts is guaranteed, machining raw materials are saved, and the material adding precision and the part machining performance are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of additive manufacturing, and particularly relates to an ultrasonic additive manufacturing device and method. Background Art

[0002] Additive manufacturing technology forms three-dimensional solid samples through the orderly accumulation or stacking of materials to achieve the integrated processing and forming of complex parts such as special-shaped and irregular parts. Additive manufacturing technology has been widely used in industrial fields such as automobile manufacturing and aerospace.

[0003] Due to the high dimensional accuracy, surface roughness, and performance requirements of complex parts, it is difficult to machine the surfaces of complex parts by traditional machining methods, and raw materials are wasted. The performance of parts cast by the casting method is low and cannot meet the high-precision requirements of products. At present, additive manufacturing by ultrasonic welding has been increasingly used, but there are also the following technical problems in actual use: on the one hand, the additive process cannot be continuous, reducing production efficiency; on the other hand, it is impossible to ensure surface roughness and additive accuracy when machining complex parts, affecting the machining performance of parts.

[0004] In view of this, it is necessary to improve the defects existing in the prior art to overcome the deficiencies existing in actual applications. Summary of the Invention

[0005] Based on the above-mentioned shortcomings and deficiencies existing in the prior art, one of the purposes of the present invention is to solve at least one or more of the above problems existing in the prior art. In other words, one of the purposes of the present invention is to provide an ultrasonic additive manufacturing device and method that meet one or more of the foregoing requirements.

[0006] In order to achieve the above-mentioned invention purpose, the present invention adopts the following technical solutions:

[0007] The present invention provides an ultrasonic additive manufacturing device, including:

[0008] A frame, including a bottom plate and a base;

[0009] A motion module, slidably engaged with the bottom plate, and a base material plate is installed on the motion module;

[0010] A unwinding mechanism, installed on the base, and the unwinding mechanism is used to convey a coil so that the coil is conveyed onto the base material plate; and

[0011] An ultrasonic seam welding unit, installed on the base, for welding the coil and the base material plate into a shape;

[0012] The coil is transferred to the substrate plate by the unwinding mechanism, the motion module links the substrate plate to reciprocate relative to the ultrasonic roll welding unit, and the coil is welded to the substrate plate by the ultrasonic roll welding unit to achieve lamination and additive manufacturing of the substrate plate.

[0013] As a preferred solution, a fixing frame is connected to the base, a first power source is installed on the fixing frame, and the first power source is drivingly connected to the ultrasonic roll welding unit.

[0014] As a preferred embodiment, the ultrasonic roll welding unit includes a mounting seat, an ultrasonic component and a second power source, the mounting seat is slidably connected to the fixed frame, the ultrasonic component and the second power source are arranged on the mounting seat, and the second power source is transmission-connected to the ultrasonic component.

[0015] As a preferred solution, the ultrasonic component includes a transducer, an amplitude modulator and a roll welding head, the transducer is connected to the amplitude modulator, the amplitude modulator is connected to the roll welding head, and the roll welding head has a welding surface.

[0016] As a preferred embodiment, the unwinding mechanism is connected to the ultrasonic roll welding unit, and the unwinding mechanism includes an unwinding roller, a clamping assembly and a cutting assembly. The unwinding roller is connected to the clamping assembly, and the clamping assembly is connected to the cutting assembly, and the coil is cut by the cutting assembly.

[0017] As a preferred solution, the clamping assembly includes a driving unit, a pressure wheel and an active roller, the pressure wheel and the active roller are arranged opposite to each other, and the driving unit is used to drive the pressure wheel and the active roller to move and to convey the coil.

[0018] As a preferred solution, the cutting assembly includes a cutting cylinder, a sliding block and a cutting knife, wherein the cutting knife is arranged on the sliding block, and the sliding block is drivingly connected to the cutting cylinder.

[0019] As a preferred solution, the motion module includes a first module and a second module, the first module and the second module are arranged vertically, the first module is connected to the base plate, the second module is arranged on the first module, and the substrate plate is installed on the second module.

[0020] As a preferred solution, a heating plate is installed under the substrate plate to heat the substrate plate.

[0021] The present invention also provides an ultrasonic additive manufacturing method, using the additive manufacturing device as described in any of the above schemes, comprising the following steps:

[0022] S10, transferring the coil to the substrate plate through the unwinding mechanism so that the first end of the coil is placed on the surface of the substrate plate;

[0023] S20, crimping the first end of the coil onto the substrate plate by an ultrasonic roll welding unit;

[0024] S30, driving the motion module to move in a horizontal direction to link the substrate plate and the ultrasonic roll welding unit to move relative to each other, and at the same time, the ultrasonic roll welding unit sequentially welds the first end of the coil to the second end, so that the coil is welded to the substrate plate, so as to achieve material addition to the substrate plate;

[0025] S40, repeat the above steps to achieve the lamination and additive manufacturing of the substrate plate.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The present invention provides an ultrasonic additive manufacturing device, which welds a coiled material and a substrate plate into shape by ultrasonic welding, which can not only achieve the purpose of no pollution and no damage, but also has high ultrasonic rolling welding forming accuracy, can ensure the surface roughness of complex parts processing and forming, save processing raw materials, and improve additive accuracy and part processing performance.

[0028] The present invention provides an ultrasonic additive manufacturing device, which continuously conveys coils through an unwinding mechanism and continuously welds the coils to a substrate plate through an ultrasonic rolling welding unit, thereby realizing a continuous additive process and improving production and processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying any creative work, they can also obtain drawings of other embodiments based on these drawings.

[0030] Figure 1 It is a schematic diagram of the overall structure of an ultrasonic additive manufacturing device according to an embodiment of the present invention;

[0031] Figure 2 is a front view of an ultrasonic additive manufacturing device according to an embodiment of the present invention;

[0032] Figure 3 is a side view of an ultrasonic additive manufacturing device according to an embodiment of the present invention;

[0033] Figure 4 is a schematic structural diagram of an ultrasonic component according to an embodiment of the present invention;

[0034] Figure 5 is a three-dimensional diagram of an unwinding mechanism according to an embodiment of the present invention;

[0035] Figure 6It is the front view of the unwinding mechanism of the embodiment of the present invention;

[0036] Figure 7 It is the side view of the unwinding mechanism of the embodiment of the present invention;

[0037] Figure 8 It is the schematic diagram of the additive state of the embodiment of the present invention;

[0038] Figure 9 It is the schematic diagram of the state after the base material plate and the coil are welded in the embodiment of the present invention. Detailed implementation manners

[0039] In order to more clearly illustrate the embodiments of the present invention, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings, and other implementation manners can be obtained.

[0040] In the description of the embodiments of the present invention, the orientation or positional relationships such as "upper", "lower", "left", "right", "front", "rear", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Terms such as "connection" and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, terms such as "first" and "second" are only used for distinction in description and have no special meaning.

[0041] As Figures 1 to 3 shown, this embodiment provides an ultrasonic additive manufacturing device, including a frame 1, a motion module 2, an unwinding mechanism 3 and an ultrasonic seam welding unit 4. A base material plate 21 is installed on the motion module 2. The coil is conveyed to the base material plate 21 through the unwinding mechanism 3. The motion module 2 drives the base material plate 21 to reciprocate relative to the ultrasonic seam welding unit 4. At the same time, the coil is welded to the base material plate 21 through the ultrasonic seam welding unit 4 to achieve stacked additive manufacturing of the base material plate 21, and then complete the integrated processing and forming of complex parts.

[0042] Specifically, the frame 1 includes a bottom plate 11 and a base 12, the base 12 is arranged on one side of the bottom plate 11, the motion module 2 is installed on the bottom plate 11, the ultrasonic seam welding unit 4 and the unwinding mechanism 3 are installed on the base 12, and the motion module 2 can move at any position on the bottom plate 11, that is, it can move arbitrarily along the X direction (that is, the left and right direction) and the Y direction (that is, the front and back direction) of the bottom plate 12. The ultrasonic seam welding unit 4 is connected to the unwinding mechanism 3 as a whole, and can move relative to the Z direction (that is, the up and down direction) of the base 11.

[0043] Furthermore, the base 12 is connected to a fixing frame 13, and a first power source 14 is installed on the fixing frame 13. The first power source 14 is connected to the ultrasonic seam welding unit 4, and the ultrasonic seam welding unit 4 is used to weld the coil and the substrate plate 21. It should be noted that the first power source 14 can be set as a cylinder, a servo motor or a hydraulic cylinder, which can be set according to actual needs.

[0044] Specifically, the ultrasonic roll welding unit 4 includes a mounting seat 41, an ultrasonic component 42 and a second power source 43. The fixed frame 13 is provided with a guide rail 131 in the up and down directions. The mounting seat 41 slides with the guide rail 131. The output end of the first power source 14 is connected to the mounting seat 41 for controlling the mounting seat 41 to move up and down along the guide rail.

[0045] Furthermore, two guide rails 131 are provided on the fixing frame 13, the output end of the first power source 14 is connected to the ball screw 132, the other end of the ball screw 132 is connected to the screw slider 133, and the screw slider 133 is connected to the mounting seat 41. By driving the first power source 14 to link the ball screw 132 to move, the ball screw 132 links the screw slider 133 to drive the mounting seat 41 to move, so that the two sides of the mounting seat 41 move up and down along the guide rails 131 respectively.

[0046] Furthermore, the ultrasonic assembly 42 and the second power source 43 are arranged on the mounting seat 41, and the second power source 43 is in transmission connection with the ultrasonic assembly 42. The second power source 43 drives the ultrasonic assembly 42 to move downward to provide a certain pressure for the processing area.

[0047] In order to output a stable welding pressure and ensure the quality and strength of welding, the second power source 43 of this embodiment adopts a cylinder, and the output pressure of the cylinder runs along the Z direction, thereby ensuring the stable welding pressure of the ultrasonic component 42, which is conducive to improving the welding quality. It should be noted that the setting of the second power source 43 is not limited to this, and an electric cylinder or a hydraulic cylinder can also be used. The specific setting can be based on actual needs and is not limited to the above limitations.

[0048] Further, the lower end of the mounting base 41 is connected to the ultrasonic component 42 through a guiding component. The guiding component includes a guiding column 411 and a linear bearing 412. The linear bearing 412 is fixed to the mounting base 41. The guiding column 411 passes through the linear bearing 412 to achieve guiding fit. The lower end of the guiding column 411 is connected to the ultrasonic component 42. Through the four groups of guiding components on the mounting base 41, the balance of the ultrasonic component 42 during up and down movement can be controlled, preventing the ultrasonic component 42 from tilting when welding workpieces and improving the stability of welding.

[0049] As Figure 4 shown, the ultrasonic component 42 in this embodiment includes a transducer (not labeled in the figure), an amplitude modulator 422, and a seam welding head 421. The two sides of the seam welding head 421 are respectively connected to the amplitude modulator 422. One of the amplitude modulators is connected to the transducer (located inside the housing, not labeled in the figure). The seam welding head 421 has a welding surface 4210 for transmitting ultrasonic vibration to the surface of the workpiece to be welded. Through ultrasonic seam welding, the surface roughness of the formed complex parts can be guaranteed, processing raw materials can be saved, and the additive manufacturing precision and part processing performance can be improved.

[0050] The coil is conveyed onto the base plate 21 through the unwinding mechanism 3, and the coil and the base plate 21 are welded and formed through the ultrasonic component 42. Specifically, a low-frequency alternating current is converted into a high-frequency current by an ultrasonic generator (not shown in the figure). The transducer 423 converts the high-frequency current into mechanical motion. Subsequently, the mechanical motion is transmitted to the seam welding head 421 after the amplitude is changed by the amplitude modulator 422. The seam welding head 421 transmits the received vibration energy to the joint of the coil and the base plate 21. Under pressure, the surfaces of the coil and the base plate 21 rub against each other to generate heat, forming a fusion between molecular layers. By welding the coil and the base plate through ultrasonic waves to form a shape, additive manufacturing of the base plate is realized to improve the forming precision and the surface roughness of the material.

[0051] As Figures 5 to 7 shown, in order to keep the coil output stable, an unwinding mechanism 3 is connected to one side of the ultrasonic seam welding unit. The unwinding mechanism 3 is used to convey the coil so that the coil is conveyed onto the base plate 21. The unwinding mechanism 3 includes an unwinding roller 31, a pressing component 32, and a cutting component 33. The unwinding roller 31 is connected to the pressing component 32, and the pressing component 32 is connected to the cutting component 33. The coil is cut by the cutting component 33.

[0052] Specifically, a magnetic powder brake 311 is provided on the unwinding roller 31. The start and stop of the unwinding roller 31 are controlled by the magnetic powder brake 311 to ensure the orderly output of the coil inside the unwinding roller 31 and the stable tension on the surface of the coil, preventing the phenomenon of slipping between the coil and the unwinding roller 31. At the same time, the speed fluctuation of the unwinding roller 31 can be controlled within a small range, so that both the output speed and tension of the coil can be stable and orderly.

[0053] Further, the pressing assembly 32 includes a driving part, a pressing wheel 321 and a driving roller 322. The pressing wheel 321 and the driving roller 322 are arranged opposite to each other. The driving part is used to drive the pressing wheel 321 and the driving roller 322 to move and is used to convey the coil material 5.

[0054] Specifically, the driving part includes a first driving part 323 and a second driving part 324. The first driving part 323 is in transmission connection with the driving roller 322, and the second driving part 324 is in transmission connection with the pressing wheel 321, so that the pressing wheel 321 presses the coil material 5 against the driving roller 322.

[0055] The first driving part 323 is installed on the substrate 34. The output end of the first driving part 323 and the driving roller 322 are in transmission connection through a synchronous belt. In order to be able to output a stable driving force and ensure the stability of the driving roller 322 in conveying the coil material, the first driving part 323 adopts a servo motor to ensure the cooperation between the driving roller and the pressing wheel to convey the coil material 5, which is beneficial to improving the conveying quality and the control accuracy.

[0056] Further, the substrate 34 is connected to the fixing seat 35 and the guide rail 36. The second driving part 324 is installed on the fixing seat 35. Both ends of the pressing wheel 321 are connected through connecting sliders and are in sliding cooperation with the guide rail 36. The second driving part 324 drives the pressing wheel 321 to move up and down along the guide rail 36. The second driving part 22 adopts a cylinder or a hydraulic cylinder, etc.

[0057] During the actual working process, the second driving part 324 drives the pressing wheel 321 to move in the up and down direction and presses the coil material 5 against the driving roller 322. The first driving part 323 drives the driving roller 322 to rotate, and relies on the frictional force between the driving roller 322 and the coil material to drive the coil material 5 to move. Furthermore, the pressing wheel 321 rotates passively as the coil material 5 moves.

[0058] A guiding block 37 is connected to one end of the fixing seat 35. The coil material 5 output by the driving roller 322 and the pressing wheel 321 enters the guiding block 37, and the coil 5 enters the base material plate 21 through the guiding block 37. The guiding block 37 has a conveying groove 371. The coil material 5 moves along the conveying groove 371. The conveying groove 371 has a certain curvature, and the output end of the conveying groove 371 is arranged in the horizontal direction, which can ensure that the coil material 5 is flush with the base material plate 21 when output.

[0059] In this embodiment, the cutting assembly 33 includes a cutting cylinder 331, a sliding block 332 and a cutting knife 333. The cutting knife 333 is arranged on the sliding block 332, and the sliding block 332 is in transmission connection with the cutting cylinder 331.

[0060] The cutting cylinder 331 is fixed to the substrate 34. The output end of the cutting cylinder 331 is connected to the sliding block 332. The substrate 34 is provided with a slide rail 334. The sliding block 332 is slidably engaged with the slide rail 334. The cutting knife 333 is fixed on the sliding block 332. When the cutting cylinder 331 drives the sliding block 332 to move up and down along the slide rail 334, the cutting knife 333 is linked to move up and down along the side wall of the guiding block 37, so as to cut off the coil material output along the guiding block 37.

[0061] Further, an optoelectronic sensor 342 is installed on the substrate 34, and the optoelectronic sensor 342 is disposed opposite to the output end of the unwinding roller 31. The optoelectronic sensor 342 is used to detect whether the coil material 5 is transmitted normally, so as to ensure the normal operation of the additive manufacturing process.

[0062] Further, several tension wheels 341 are installed on the substrate 34. The coil material moves along several tension wheels 341 in sequence. The coil material 5 is output from the unwinding roller 31 and passes through several tension wheels 341 in sequence to roll-press the coil material. On the one hand, it can ensure the surface tension of the coil material and the flatness of the coil material during the conveying process, and avoid wrinkles in the coil material entering the additive manufacturing position. On the other hand, the multiple tension wheels provided can play a role in positioning and guiding the coil material, and the coil material is linked by the driving roller and sequentially and orderly conveyed into the guiding block and then into the base plate.

[0063] In this embodiment, the motion module 2 is slidably engaged with the bottom plate 11. The substrate plate 21 is installed on the motion module 2. Specifically, the motion module 2 includes a first module 23 and a second module 24. The first module 23 is connected to the bottom plate 11. The second module 24 is disposed above the first module 23. The substrate plate 21 is installed above the second module 24. The first module 23 and the second module 24 move horizontally to link the movement of the substrate plate 21, so as to adjust the position of the substrate plate 21.

[0064] Specifically, the first module 23 includes a first servo motor 231, a first ball screw 232, a first slider 233, a first sliding guide rail 234 and a first moving plate 235. Two first sliding guide rails 234 are provided on the bottom plate 11. The first servo motor 231 is installed on the bottom plate 11 and is disposed between the two first sliding guide rails 234. The output end of the first servo motor 231 is connected to the first ball screw 232. The other end of the first ball screw 232 is connected to the first slider 233. The first moving plate 235 is connected above the first slider 233. The two sides of the first moving plate 235 are slidably engaged with the first sliding guide rail 234. The first servo motor 231 drives the first ball screw 232 to rotate, so that the first slider 233 links the first moving plate 235 to move in the Y direction along the first sliding guide rail 234.

[0065] Further, the second module 24 is disposed above the first module 23 and is vertically arranged with the first module 23. The second module 24 includes a second servo motor 241, a second ball screw 242, a second slider 243, a second sliding guide 244, and a second moving plate 245. The second servo motor 241 is installed on the base 12. Two second sliding guides 244 are provided on the first moving plate 235. The output end of the second servo motor 241 is connected to the second ball screw 242, and the other end of the second ball screw 242 is connected to the second slider 243. The second moving plate 245 is connected above the second slider 243, and both sides of the second moving plate 245 are slidably engaged with the second sliding guide 244. The second servo motor 241 drives the second ball screw 242 to rotate, so that the second slider 243 drives the second moving plate 245 to move in the X direction along the second sliding guide 244.

[0066] Further, a heating plate 22 is fixed on the second moving plate 245, and a base plate 21 is fixed on the heating plate 22. By heating the heating plate 22 and transferring the heat to the surface of the base plate 21, the activity of the material molecules in the base plate 21 can be stimulated, especially the processing surface of the base plate 21, so as to facilitate welding the coil material and the base plate 21 into a shape by the ultrasonic component 42 and improve the welding reliability.

[0067] This embodiment also provides an ultrasonic additive manufacturing method, which uses the additive manufacturing device as described above and includes the following steps:

[0068] S10: The coil material 5 is conveyed onto the base plate 21 through the unwinding mechanism 3, so that the first end of the coil material 5 is placed on the surface of the base plate 21.

[0069] Specifically, the magnetic powder brake 311 is loosened, so that the coil material 5 in the unwinding roller 31 is in a loose state. The second driving part 324 drives the pressing wheel 321 to press down, and the first driving part 323 drives the driving roller 322 to rotate through the synchronous belt. The coil material is driven by the friction force between the driving roller 322 and the pressing wheel 321 and flows through the guiding block 37 and is output to the base plate 21, so that the first end of the coil material 5 moves to the corresponding position on the base plate 21.

[0070] S20: The first end of the coil material 5 is crimped onto the base plate 21 through the ultrasonic seam welding unit 4.

[0071] Specifically, the first power source 14 drives the ultrasonic seam welding unit 4 to move downward, so that the ultrasonic seam welding unit 4 contacts the coil material, and the first end of the coil material is pressed tightly on the base plate 21.

[0072] S30, driving the motion module to move in the horizontal direction to link the substrate plate 21 and the ultrasonic roll welding unit 4 to move relative to each other, and at the same time, the ultrasonic roll welding unit 4 welds the first end 51 of the coil 5 to the second end 52 in sequence, so that the coil 5 is welded to the substrate plate 21 to achieve material addition to the substrate plate 21.

[0073] Specifically, the ultrasonic component 42 is started, so that the roll welding head 421 starts ultrasonic vibration, and the second power source 43 drives the ultrasonic component 42 to move downward to provide welding pressure for the first end of the coil 5. At the same time, the first module 23 and the second module 24 move and link the substrate plate 21 to move in the horizontal direction, so that the substrate plate 21 moves linearly relative to the roll welding head 421.

[0074] Since the rolling welding head 421 presses the coil 5 onto the substrate plate 21, when the substrate plate 21 moves, the rolling welding head 421 is forced to rotate due to friction, so that the substrate plate 21 drives the coil 5 to be welded from the first end 51 to the second end 52. When the welding of the second end of the coil 5 is completed, the sliding block 332 is driven by the cutting cylinder 331 to move downward along the slide rail 334, so as to drive the cutting knife 333 to move downward along the side wall of the guide block 37, so as to realize the cutting of the coil output along the guide block 37, and then realize the welding of a layer of coil to the substrate plate.

[0075] like Figure 8 The schematic diagram shows the changing state of the coil from the start of welding to the completion of welding. The arrow indicates that the substrate plate 21 moves relative to the seam welding head 421 along the X direction, so that the coil 5 starts welding from the first end 51 until the second end 52 is completed.

[0076] S40, repeat the above steps to achieve the lamination and additive manufacturing of the substrate plate.

[0077] In order to realize welding of multiple layers of coils on the substrate plate, by adjusting the position of the first module 23 and / or the second module 24 in the horizontal plane, the movement position of the substrate plate in the X direction or the Y direction can be adjusted, or by adjusting the output power of the first power source 14, the height position of the ultrasonic roll welding unit 4 relative to the substrate plate 21 is adjusted, and the above operation steps are repeated in sequence to realize welding of the coils to the substrate plate layer by layer, which can realize increasing the width of the substrate plate in the width direction (Y direction), such as Figure 9 The substrate plate 21 is shown to have multiple layers of substrate added in the width direction.

[0078] In addition, the substrate plate 21 can be additively manufactured in the thickness direction (Z direction) to increase the thickness of the substrate plate and in the length direction (X direction) to increase the length of the substrate plate, thereby achieving the purpose of additive manufacturing of complex parts.

[0079] In this embodiment, the coil material is welded to the base plate by ultrasonic welding to form a shape, which can not only achieve the purpose of pollution-free and damage-free, but also has high precision in ultrasonic welding forming, can ensure the surface roughness of the processing and forming of complex parts, save processing raw materials, and improve the additive precision and part processing performance.

[0080] The above description is only a detailed description of the preferred embodiments and principles of the present invention. For those of ordinary skill in the art, according to the idea provided by the present invention, there will be changes in the specific implementation manners, and these changes should also be regarded as the protection scope of the present invention.

Claims

1. An ultrasonic additive manufacturing device, characterized in that: include: A frame, including a base plate and a pedestal; A motion module is slidably matched with the bottom plate, and a substrate plate is installed on the motion module; An unwinding mechanism is installed on the base, and is used to convey the coiled material so that the coiled material is conveyed onto the substrate plate; as well as An ultrasonic roll welding unit, installed on the base, for welding the coil and the substrate plate into shape; The coil is transferred to the substrate plate by the unwinding mechanism, the motion module links the substrate plate to reciprocate relative to the ultrasonic roll welding unit, and the coil is welded to the substrate plate by the ultrasonic roll welding unit to achieve lamination and additive manufacturing of the substrate plate.

2. The ultrasonic additive manufacturing device according to claim 1, characterized in that: A fixing frame is connected to the base, a first power source is installed on the fixing frame, and the first power source is drivingly connected to the ultrasonic roll welding unit.

3. The ultrasonic additive manufacturing device according to claim 2, characterized in that: The ultrasonic roll welding unit comprises a mounting seat, an ultrasonic component and a second power source. The mounting seat is slidably connected to the fixing frame. The ultrasonic component and the second power source are arranged on the mounting seat. The second power source is transmission-connected to the ultrasonic component.

4. The ultrasonic additive manufacturing device according to claim 3, characterized in that: The ultrasonic component comprises a transducer, an amplitude modulator and a roll welding head, wherein the transducer is connected to the amplitude modulator, the amplitude modulator is connected to the roll welding head, and the roll welding head has a welding surface.

5. The ultrasonic additive manufacturing device according to claim 1, characterized in that: The unwinding mechanism is connected to the ultrasonic roll welding unit, and the unwinding mechanism includes an unwinding roller, a clamping assembly and a cutting assembly. The unwinding roller is connected to the clamping assembly, and the clamping assembly is connected to the cutting assembly, and the coil is cut by the cutting assembly.

6. The ultrasonic additive manufacturing device according to claim 5, characterized in that: The clamping assembly comprises a driving part, a pressing wheel and an active roller. The pressing wheel and the active roller are arranged opposite to each other. The driving part is used for driving the pressing wheel and the active roller to move and for conveying the coiled material.

7. The ultrasonic additive manufacturing device according to claim 5, characterized in that: The cutting assembly comprises a cutting cylinder, a sliding block and a cutting knife. The cutting knife is arranged on the sliding block, and the sliding block is drivingly connected with the cutting cylinder.

8. The ultrasonic additive manufacturing device according to claim 1, characterized in that: The motion module includes a first module and a second module, the first module and the second module are arranged vertically, the first module is connected to the bottom plate, the second module is arranged on the first module, and the substrate plate is installed on the second module.

9. The ultrasonic additive manufacturing device according to claim 1, characterized in that: A heating plate is installed under the substrate plate to heat the substrate plate.

10. An ultrasonic additive manufacturing method, characterized in that: The additive manufacturing device according to any one of claims 1 to 9 comprises the following steps: S10, transferring the coil to the substrate plate through the unwinding mechanism so that the first end of the coil is placed on the surface of the substrate plate; S20, crimping the first end of the coil onto the substrate plate by an ultrasonic roll welding unit; S30, driving the motion module to move in a horizontal direction to link the substrate plate and the ultrasonic roll welding unit to move relative to each other, and at the same time, the ultrasonic roll welding unit sequentially welds the first end of the coil to the second end, so that the coil is welded to the substrate plate, so as to achieve material addition to the substrate plate; S40, repeat the above steps to achieve the lamination and additive manufacturing of the substrate plate.

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