CN-120963033-B - Light-curing additive manufacturing equipment combining ultrasonic vibration and magnetic field assistance

Abstract

The invention relates to the technical field of 3D printing, in particular to a photo-curing additive manufacturing device combining ultrasonic vibration and a magnetic field, which comprises a resin pool, wherein a substrate resin containing magnetic particles is arranged in the resin pool, an ultrasonic vibration module for uniformly and finely distributing the magnetic particles in the vertical direction by utilizing ultrasonic vibration in the continuous forming process, and a magnetic field auxiliary module for directionally distributing the magnetic particles in the substrate resin in any direction, so that uniform distribution of the particles on a microstructure and specific directions/different magnetic fields are realized, and a microminiature magnetic device can be manufactured with high efficiency and high precision.

Inventors

• HUANG ZHIYUAN
• Wei Kangya
• WU YINGDAN
• PENG BIN
• WANG CHANG
• YAO LIMING
• LI LONGQIU

Assignees

• 哈尔滨工业大学

Dates

Publication Date

20260505

Application Date

20250919

Claims (7)

1. 1. The equipment for manufacturing the photo-curing additive by combining ultrasonic vibration and magnetic field assistance comprises a resin pool (24), and is characterized in that a base resin (27) containing magnetic particles (28) is arranged in the resin pool (24), an ultrasonic vibration module for uniformly and finely distributing the magnetic particles (28) in the vertical direction by utilizing ultrasonic vibration in the continuous forming process, and a magnetic field assistance module for performing directional arrangement in any direction on the magnetic particles (28) in the base resin (27) so as to realize uniform particle distribution on a microstructure and have specific directions and anisotropy; The resin pool (24) is arranged on the vibration isolation table (23), the vibration isolation table (23) is provided with a light source module, a projection module and a forming platform module, the light source module emits a UV light source, the UV light source is reflected into the resin pool (24) through the projection module, the ultrasonic vibration module enables settled magnetic particles (28) to be uniformly distributed in the vertical direction, the magnetic field auxiliary module enables the disordered magnetic particles (28) to be directionally distributed, under the action of the UV light source, the base resin (27) is continuously formed on the forming platform module, the forming position of the forming platform module is lifted upwards at a uniform speed, and a printed piece (31) is continuously formed; The ultrasonic vibration module comprises an ultrasonic transducer (11) arranged at the bottom of a resin pool (24), the ultrasonic transducer (11) is externally connected with an industrial personal computer-ultrasonic generator (10), the industrial personal computer-ultrasonic generator (10) is arranged on a vibration isolation table (23), and standing waves in the vertical direction generated by the ultrasonic transducer (11) are used for uniformly and finely distributing settled magnetic particles (28) in the vertical direction; The magnetic field auxiliary module comprises an upper electromagnetic coil (12) and a lower electromagnetic coil (29) which are arranged on the upper side and the lower side of the resin pool (24), the upper electromagnetic coil (12) and the lower electromagnetic coil (29) are connected with each other through an annular electromagnetic coil supporting frame (30), the annular electromagnetic coil supporting frame (30) is arranged in the middle of the resin pool (24), an annular rack (14) is rotatably connected to the annular electromagnetic coil supporting frame (30) through a transmission bearing (25), a halbach magnetic ring (13) is arranged in a groove of the annular rack (14), a plurality of magnetic pole pieces are arranged on the halbach magnetic ring (13) in a specific deflection mode, a transmission gear (15) is connected to the annular rack (14) in a meshed transmission mode, the transmission gear (15) is fixedly connected to an output shaft of a driving motor (16), the driving motor (16) is fixedly connected to a motor supporting frame (17), the motor supporting frame (17) is fixedly connected to a height-adjustable motor supporting frame (18), and the height-adjustable motor supporting frame (18) is arranged on a vibration isolation table (23).
2. 2. An apparatus for combined ultrasonic vibration and magnetic field assisted photo-curing additive manufacturing as defined in claim 1, wherein the resin bath (24) is a cylindrical cavity geometry.
3. 3. The device for manufacturing the photocuring additive by combining the ultrasonic vibration and the magnetic field is characterized in that the light source module comprises a UV light source generating device (1), a light source lens (2) is installed on the emitting end of the UV light source generating device (1), the UV light source generating device (1) is installed on a light source support (3), the light source support (3) is connected to a sliding rail (4) in a sliding mode, a manual adjusting screw rod (5) is connected to the sliding rail (4) in a rotating mode, and the light source support (3) is connected to the adjusting screw rod (5) through threads.
4. 4. The device for manufacturing the photo-curing additive by combining ultrasonic vibration and magnetic field assistance according to claim 3, wherein the sliding rail (4) is fixedly connected to the highly adjustable light source supporting frame (6).
5. 5. The device for manufacturing the photo-curing additive combined with the ultrasonic vibration and the magnetic field as claimed in claim 4, wherein the projection module comprises a reflecting mirror (7), the reflecting mirror (7) is mounted on a horizontal connecting frame (8), and the horizontal connecting frame (8) is mounted on a vertical height adjusting frame (9).
6. 6. The device for manufacturing the photocuring additive by combining ultrasonic vibration and magnetic field as claimed in claim 1, wherein the molding platform module comprises a printing platform (19), the printing platform (19) is positioned in the resin pool (24), the printing platform (19) is fixedly connected to a vertical displacement platform (20), and the vertical displacement platform (20) is slidably connected to a molding platform module support frame (26).
7. 7. The device for manufacturing the photo-curing additive combined with the ultrasonic vibration and the magnetic field as claimed in claim 6, wherein the forming platform module supporting frame (26) is fixedly connected with a printing platform driving motor (21) for driving the vertical displacement platform (20) to move in the vertical direction.

Description

Light-curing additive manufacturing equipment combining ultrasonic vibration and magnetic field assistance Technical Field The invention relates to the technical field of 3D printing, in particular to equipment for manufacturing photocuring additive by combining ultrasonic vibration and magnetic field assistance. Background The photo-curing additive manufacturing technique Photopolymerization Additive Manufacturing is an advanced manufacturing method for constructing a three-dimensional structure layer by selectively curing liquid photosensitive resin by taking light as an energy source. The technology has the remarkable advantages of high manufacturing precision, high forming speed, strong structural complexity supporting capability and the like, and is particularly suitable for rapid forming of micro-scale and complex structural members. Compared with the traditional material reduction manufacturing process, the light curing technology can realize high-efficiency utilization of materials and more flexible structural design, support highly free geometric modeling, and can quickly iterate a prototype on the premise of not needing a complex die, thereby obviously shortening the product development period. The method is widely applied to the fields of medical treatment, electronics, micro-flow control, bionic materials, micro devices and the like; along with the continuous development of the Chinese manufacturing industry, higher requirements are put on the performance of the high-precision microminiature magnetic device, however, the single photocuring additive manufacturing technology is difficult to directionally arrange the magnetic particles, and further the N-S isotropy or the anisotropy of the microminiature magnetic device is difficult to realize; Chinese patent CN218985754U discloses an ultrasonic-assisted enhanced FDM 3D printing device, which places an ultrasonic vibration device at the bottom end of a printing platform, so as to reduce thermal stress inside a part printed by the FDM forming process, improve interlayer bonding force, reduce surface roughness, and not negatively affect printing efficiency. But FDM technology itself is not suitable for printing high precision microminiature magnetic devices; It is therefore desirable to provide a photocurable additive manufacturing apparatus that can manufacture microminiature magnetic devices with high efficiency and high precision. Disclosure of Invention The invention aims to provide a device for manufacturing a micro-miniature magnetic device by combining ultrasonic vibration and magnetic field auxiliary photo-curing additive, which can be used for manufacturing the micro-miniature magnetic device with high efficiency and high precision. The aim of the invention is achieved by the following technical scheme: The equipment for manufacturing the photo-curing additive by combining ultrasonic vibration and magnetic field comprises a resin pool, wherein a base resin containing magnetic particles is arranged in the resin pool; the device also comprises an ultrasonic vibration module, a magnetic field auxiliary module and a magnetic field control module, wherein the ultrasonic vibration module is used for uniformly and finely distributing magnetic particles in the vertical direction by utilizing ultrasonic vibration in the continuous forming process; The resin pool is arranged on the vibration isolation table, the vibration isolation table is provided with a light source module, a projection module and a forming platform module, the light source module emits a UV light source, the UV light source is reflected into the resin pool through the projection module, the ultrasonic vibration module enables settled magnetic particles to be uniformly distributed in the vertical direction, the magnetic field auxiliary module enables disordered particles to be directionally distributed, under the action of the UV light source, base resin is continuously formed on the forming platform module, the forming position of the forming platform module is lifted upwards at a uniform speed, and a printed piece is continuously formed; The ultrasonic vibration module comprises an ultrasonic transducer arranged at the bottom of the resin pool, the ultrasonic transducer is externally connected with an industrial personal computer-ultrasonic generator, the industrial personal computer-ultrasonic generator is arranged on the vibration isolation table, and standing waves in the vertical direction are generated by the ultrasonic transducer and are used for uniformly and finely distributing settled magnetic particles in the vertical direction; The magnetic field auxiliary module comprises an upper electromagnetic coil and a lower electromagnetic coil which are arranged on the upper side and the lower side of the resin pool, wherein the upper electromagnetic coil and the lower electromagnetic coil are connected with each other through an annular electromagnetic coil support frame, the