CN-118287695-B - Feeding system of high-precision 3D printer for aviation titanium alloy

Abstract

The invention relates to a feeding system of a high-precision 3D printer for aviation titanium alloy, which comprises a base, a feeding system, a feeding motion system, a workpiece motion system, a scanning system and a control system, wherein the feeding motion system is used for realizing triaxial motion of the feeding system in a three-dimensional space, the feeding system is arranged on the feeding motion system, the scanning system is used for transmitting motion track information to the control system, the control system is respectively and electrically connected with the feeding system, the feeding motion system, the workpiece motion system and the scanning system, the workpiece motion system is provided with a first rotating shaft and a second rotating shaft, the rotating axes of the first rotating shaft and the second rotating shaft are mutually perpendicular, the feeding system comprises a laser device, a powder feeding head and a plurality of powder deflection devices, the powder feeding head is provided with a laser outlet, an airflow constraint channel and a powder feeding channel, each powder deflection device stretches into each airflow constraint channel, and each powder deflection device changes the path of each powder feeding channel and can be suitable for precision printing of all metal powder including titanium alloy.

Inventors

• XIAO GUODONG

Assignees

• 无锡有田五维增材科技有限公司

Dates

Publication Date

20260508

Application Date

20220923

Claims (2)

1. 1. The feeding system of the high-precision 3D printer for aviation titanium alloy is characterized by comprising a laser device, a powder feeding head and a plurality of powder deflection devices, wherein a laser outlet, an airflow constraint channel and a powder feeding channel are arranged on the powder feeding head, each powder deflection device is arranged on the powder feeding head and stretches into each airflow constraint channel, each powder deflection device changes the path of each powder feeding channel, each powder deflection device comprises a deflection electromagnet, an attraction block, a sliding rod and a steady flow control assembly, the deflection electromagnet is arranged outside the powder feeding head, the attraction block is fixedly arranged on the sliding rod, the steady flow control assembly is arranged on the side wall of the airflow constraint channel, the sliding rod slides along the powder feeding head to further extrude the steady flow control assembly, the sliding rod extrudes the steady flow control assembly to further change the path of the airflow constraint channel, the steady flow control assembly comprises an elastic plate and a plurality of fasteners, and the elastic plate is arranged on the airflow constraint channel through the fasteners, and the top surface of the elastic plate is flush with the airflow constraint channel.
2. 2. The feeding system of an aviation titanium alloy high-precision 3D printer according to claim 1, wherein the input end of the laser device is connected with a laser fiber.

Description

Feeding system of high-precision 3D printer for aviation titanium alloy The application discloses a patent application with the name of 'high-precision 3D printer for aviation titanium alloy' and a printing method thereof, and the application date of the original application is 2022-09-23, and the application number is CN202211161197.8. Technical Field The invention relates to the technical field of 3D printing, in particular to a feeding system of a titanium alloy high-precision 3D printer for aviation. Background 3D printing is an emerging technology in the field of manufacturing that is rapidly developing, and can effectively shorten the product development period, improve the product quality, and reduce the production cost by adding materials to produce objects of any shape. The existing 3D metal printing technology cannot directly form parts meeting the requirements, because a molten pool is formed on the surface of metal powder, the molten pool can adhere with unnecessary powder to reduce the precision, and the precision of the parts produced by the existing 3D metal printing technology is between 0.1mm and 5mm and cannot be improved. Some attempts have been made in the prior art to improve printing accuracy, such as by changing the orientation of the metal powder, such as CN 105364073B, using magnetic field deflection, but this approach is ineffective for metals that cannot be attracted by magnetic forces, such as aerospace titanium alloys, which cannot be attracted by magnetic forces in this way. Disclosure of Invention In order to overcome the technical defects in the prior art, the invention provides a feeding system of a high-precision 3D printer for aviation titanium alloy, which can be suitable for precision printing of all metal powder including aviation titanium alloy. The technical scheme adopted by the invention is as follows: the feeding system of the high-precision 3D printer for aviation titanium alloy comprises a laser device, a powder feeding head and a plurality of powder deflection devices, wherein a laser outlet, an airflow constraint channel and a powder feeding channel are arranged on the powder feeding head, each powder deflection device is arranged on the powder feeding head and stretches into each airflow constraint channel, each powder deflection device changes the path of each powder feeding channel, each powder deflection device comprises a deflection electromagnet, an attraction block, a sliding rod and a steady flow control component, the deflection electromagnet is arranged outside the powder feeding head, the attraction block is fixedly arranged on the sliding rod, the steady flow control component is arranged on the side wall of the airflow constraint channel, the sliding rod slides along the powder feeding head to further extrude the steady flow control component, the sliding rod extrudes the steady flow control component to further change the path of the airflow constraint channel, the steady flow control component comprises an elastic plate and a plurality of fasteners, the elastic plate is arranged on the airflow constraint channel through the fasteners, and the top surface of the elastic plate is flush with the airflow constraint channel. Preferably, the input end of the laser device is connected with a laser fiber. The beneficial effects of the invention are as follows: the feeding system comprises a laser device, a powder feeding head and a plurality of powder deflection devices, wherein the powder feeding head is provided with a laser outlet, an airflow constraint channel and a powder feeding channel, each powder deflection device is arranged on the powder feeding head and extends into each airflow constraint channel, and each powder deflection device changes the path of each powder feeding channel, so that powder deflection can be suitable for precision printing of all metal powder including titanium alloy under the effect of Bernoulli principle. Drawings FIG. 1 is a schematic view of the installation position structure of the present invention. FIG. 2 is a schematic diagram of the structure of the present invention. Fig. 3 is an enlarged schematic view of fig. 2 at a. Reference numerals illustrate: 1. a base; 2. a feeding system; 21, a laser device, 211, a laser outlet, 22, a powder feeding head, 222, a powder feeding channel, 223, an air flow constraint channel, 23, a powder deflection device; 3. A feed motion system; 31, a first servo module, 32, a second servo module, 33, a third servo module, 231, a deflection electromagnet, 232, a suction block, 233, a sliding rod, 234, a steady flow control assembly, 2341, an elastic plate, 2342 and a fastener; 4. A workpiece motion system; 41, a first substrate motor, 42, a second substrate motor, 43, a swing arm, 44 and a turntable; 5. The scanning system, 51, the camera, 52, the regulation support. Detailed Description The invention is further described below with reference to the accompanying drawings: as shown in fi