CN213559891U

CN213559891U - Novel coaxial powder feeding device

Info

Publication number: CN213559891U
Application number: CN202021995118.XU
Authority: CN
Inventors: 张元�; 金业鑫
Original assignee: Harbin University of Science and Technology
Current assignee: Harbin University of Science and Technology
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-06-29
Anticipated expiration: 2030-09-14

Abstract

The utility model provides a novel coaxial powder feeding device. The utility model relates to a novel coaxial powder feeding device, including shower nozzle part, shaking table part, support body part. The swing table is characterized in that the frame body part is used for supporting the swing table part and the nozzle part. The rocker part is matched with the nozzle part to process the workpiece. The basic technical scheme is as follows: the workpiece with complex shape is processed by controlling the size of the laser beam, the amount of the powder spraying and the difference of the powder spraying materials. And the strength and the mass density of the workpiece are increased by the air pressurizing device, and the electric energy is generated by the rotation of the workbench, so that a novel coaxial powder feeding device which can produce the workpiece with high efficiency, high quality and high complexity and can generate the electric energy is provided for 3D printing.

Description

Novel coaxial powder feeding device

Technical Field

The utility model relates to a novel coaxial powder feeding device, specifically speaking, indicate through the control laser beam size and how much and the difference of the material of dusting, process the work piece that the shape is complicated. And the strength and the mass density of the workpiece are increased by the air pressurizing device, and the electric energy is generated by the rotation of the workbench, so that a novel coaxial powder feeding device which can produce the workpiece with high efficiency, high quality and high complexity and can generate the electric energy is provided for 3D printing. The utility model relates to a 3D prints, mechanical structure design field.

Background

At present, the domestic 3D printing technology is gradually formed, and part of the printing technology is applied to the production of device parts with high technical requirements such as aerospace and the like. However, the existing domestic 3D printing technology for coaxial powder feeding is still deficient in that the processing speed is low, the efficiency is low, complex workpieces are difficult to process, the mass density and the strength of the simple workpieces which can be processed are not high, and the precision and the smoothness are low.

The utility model discloses solve above drawback at to a great extent with its high efficiency, stability, accurate nature, feature of environmental protection and use extensive characteristics, increased the quality and the precision of the applied extensive nature of 3D printing process and processing work piece. The utility model discloses in the aspect of processing, the high-efficient processing of the work piece of different dimensions is realized through the size of how much and the powder spray volume of control laser beam. And the removable support can be formed by spraying different metal powder, so that the workpiece with a complex shape can be processed, and the mass density of the workpiece can be increased by an air pressurizing device. The utility model discloses the step effect is effectively eliminated in the swing of accessible workstation to the magnetism bioelectricity effect that can use rotatory production produces the electric energy, realizes high-efficiently, high-quality green processing.

Disclosure of Invention

The utility model provides a novel coaxial powder feeding device;

the basic technical scheme is as follows: the workpiece with complex shape is processed by controlling the size of the laser beam, the amount of the powder spraying and the difference of the powder spraying materials. And the strength and the mass density of the workpiece are increased by the air pressurizing device, and the electric energy is generated by the rotation of the workbench, so that a novel coaxial powder feeding device which can produce the workpiece with high efficiency, high quality and high complexity and can generate the electric energy is provided for 3D printing.

The utility model discloses at the during operation, laser is jetted out through the nozzle according to the size and the precision control laser beam of machined part by the laser instrument, assembles with metal powder in the processing point department. The metal powder is conveyed to the powder spraying pipe by the powder storage and powder spraying device and is sprayed out. The powder spraying pipe can spray metal powder of different materials at the same time, so that workpieces with complex shapes can be processed. And the air pressurizing device can perform shape extrusion control on the material in a molten state in the forming process through air, so that the strength and the mass density of the workpiece are improved. The motor drives the lower gear shaft, the upper gear shaft and the rotary table to rotate. The turntable has an upper magnetic plate and an iron piece fixed thereto, and the swing stand has a lower magnetic plate fixed thereto, thereby generating a magnetic field and generating electric energy by a magnetoelectric effect. And transmitted to the electricity storage equipment of the connecting frame. The swing stand is adapted to be swung in the front-rear direction to machine a workpiece in cooperation with the head apparatus, thereby effectively reducing the step marks.

Description of the drawings:

the invention will be further explained with reference to the drawings and the embodiments below:

FIG. 1: a front view of a novel coaxial powder feeding device.

FIG. 2 is a drawing: a top view of a novel coaxial powder feeding device.

FIG. 3: a side view of a novel coaxial powder feeding device.

FIG. 4 is a drawing: an axial schematic diagram of the whole structure of a novel coaxial powder feeding device.

FIG. 5: a schematic axial side view of a nozzle part of a novel coaxial powder feeding device.

FIG. 6: a schematic view of a swing stand part on an axis side of a novel coaxial powder feeding device.

FIG. 7: a frame body part shaft side schematic diagram of a novel coaxial powder feeding device.

Wherein: worm 1, front and back sliding device 2, left and right sliding device 3, upper plate 4, force bearing rod 5, middle plate 6, connecting rod 7, lower plate 8, cooling protection air pipe 9, outer ring powder spraying pipe 10, outer ring laser pipe 11, nozzle 12, center laser pipe 13, inner ring powder spraying pipe 14, center laser 15, outer ring laser 16, air pressurizing device 17, pulley A18, pulley B19, frame 20, turntable 21, upper magnetic plate 22, upper gear shaft 23, iron sheet 24, lower magnetic plate 25, rocker 26, bearing 27, lower gear shaft 28, motor base 29, energy storage device base 30, connecting frame 31, bearing 32

The specific implementation mode is as follows:

the following describes the matching relationship and functions of the components of the present invention with reference to the accompanying drawings:

as shown in fig. 1, 3 and 7: the worm 1 is connected with the left-right sliding device 3 in a threaded fit manner, the left-right sliding device 3 slides on the slide rail of the front-back sliding device 2 through the pulley A18, the front-back sliding device 2 slides on the slide rail of the frame body 20 through the pulley B19, and the spray head part moves along the XYZ direction.

As shown in fig. 1, 4 and 5: the worm 1 is connected with the upper plate 4 through thread fit, the upper plate 4 is connected with the middle plate 6 through four bearing rods 5, and the middle plate 6 is connected with the lower plate 8 through four connecting rods 7. The upper ends of twelve cooling protective air pipes 9 are fixed on the lower plate 8 and connected with a cooling protective air conveying system, and the lower ends are fixed on the nozzle 12. The six outer ring powder spraying pipes 10 are fixed on the lower plate 8 at the upper ends and connected with the outer ring powder conveying system, and the lower ends are fixed on the nozzles 12. The six outer ring laser tubes 11 are fixed at the upper ends on the lower plate 8 and connected with the outer ring laser 16, and the lower ends are fixed on the nozzle 12. The upper ends of six inner ring powder spraying pipes 13 are fixed on the lower plate 8 and connected with the inner ring powder conveying system, and the lower ends are fixed on the nozzle 12. A central laser tube 14 is fixed at the upper end to the lower plate 8 and is connected to a central laser 15, the lower end being fixed to the nozzle 12. The air pressurizing device 17 is fixed at the upper end to the middle plate 6 and connected to the air delivery system, and at the lower end to the processing position of the nozzle.

As shown in fig. 1, 2 and 6: the swing motor unit swings the swing stand 26 back and forth, the swing stand is connected to a bearing 32, and the bearing 32 is located on the frame body 20 at a distance of about 1000mm from the floor. The link 31 is fixed below the swing stand 26, and the swing motor is positioned on the turntable motor base 29 to rotate the lower gear shaft 28. The lower gear shaft 28 rotates the upper gear shaft 23. The lower gear shaft 28 is connected to a bearing 27, and the bearing 27 is provided on the swing stand 26 to perform positioning and friction reduction. The upper gear shaft 23 rotates the turntable 21. An upper magnetic plate 22 and sixty iron pieces 24 are fixed below the turntable 21, a lower magnetic plate 25 is fixed on a swing stand 26, and electric energy generated during rotation is transmitted to an electric storage device 30 through a hollow upper gear shaft 23 and a lower gear shaft 28 by wires.

The working mode of the present invention is explained below with reference to the accompanying drawings:

as shown in fig. 1, 2, 4 and 7, the laser beam is controlled by the central laser 15 and the outer ring laser 16 according to the size and precision of the workpiece, and is emitted from the nozzle 12 after passing through the central laser tube 13 and the outer ring laser tube 11, and is converged with the metal powder at the processing point. The metal powder is conveyed to the inner ring powder spraying pipe 14 and the outer ring powder spraying pipe 10 by the powder storing and spraying device and is sprayed out. Six inner ring powder spraying pipes 14 and six outer ring powder spraying pipes 10 can spray metal powder of different materials simultaneously, for example, when a titanium alloy workpiece is processed, a removable support which can be dissolved in hydrochloric acid can be formed by spraying aluminum powder without influencing the titanium alloy workpiece. Thus, workpieces with complicated shapes, such as inner extension parts, can be processed, and the air pressurizing device 17 can perform shape extrusion control on materials in a molten state in the forming process through air, so that the strength and the mass density of the workpieces are improved. The low-temperature protective gas can be circularly cooled in the nozzle through the cooling protective gas pipe 9, so that the temperature in the device is reduced, and the gathering and protecting effects are achieved after the spraying. The lower plate 8 can be used for placing a laser, connecting a powder spraying device with a powder spraying pipe and the like. The lower plate 8 is connected to the middle plate 6 by four connecting rods 7, and the middle plate 6 can be connected to an air delivery device and an air pressurization device 17. The middle plate 6 and the upper plate 4 are connected by four bearing rods 5. The upper plate 4 is fixed with the worm 1, the worm 1 is connected with the left-right sliding device 2, the up-and-down movement of the spray head device is controlled by controlling the worm 1, and the left-and-right sliding device 2 realizes the left-and-right movement through the pulley A18. On the slide rail front and back slide device 3, the front and back slide device 3 realizes the front and back slide through the pulley B19, thereby can drive the whole spray head part to realize the movement of XYZ direction.

As shown in fig. 1, 3, 5 and 6, the outer teeth of the turntable motor 29 drive the outer teeth of the lower gear shaft 28 to rotate, and the bearing 27 is used for reducing friction. The outer teeth of the lower gear shaft 28 rotate the inner teeth of the upper gear shaft 23, so that the outer teeth of the upper gear shaft 23 rotate the turntable 21. An upper magnetic plate 22 is fixed to the turntable 21, sixty iron pieces 24 are fixed to the upper magnetic plate 22, and a lower magnetic plate 25 is fixed to the swing stand 26, thereby generating a magnetic field and generating electric energy by a magnetoelectric effect of the iron pieces during rotation. The wires are connected from the hollow gear shaft to the electric storage device 30 on the connecting frame 31. The swing stand 26 is connected to the bearing 32 and the frame body 20, and is configured to swing around the front-rear direction by a motor, so that a workpiece is machined in cooperation with the head apparatus, and the step marks can be effectively reduced. Thereby effectively improving the processing precision and efficiency.

Claims

1. A novel coaxial powder feeding device comprises a nozzle part, a swing stand part and a frame part, and is characterized in that the frame part is used for supporting the swing stand part and the nozzle part and controlling the movement of the nozzle part along XYZ directions, the swing stand part is combined with the nozzle part to process a workpiece through swing of the swing stand and rotation of a rotary table, and the nozzle part controls powder spraying amount, laser beam amount and air pressurization.

2. The novel coaxial powder feeding device according to claim 1, further characterized in that: the upper ends of twelve cooling protective air pipes (9) are connected with a cooling protective air conveying system, the upper ends of six outer ring powder spraying pipes (10) are connected with an outer ring powder conveying system, the upper ends of six outer ring laser pipes (11) are connected with an outer ring laser (16), the upper ends of six inner ring powder spraying pipes (13) are connected with an inner ring powder conveying system, the upper end of a central laser pipe (14) is connected with a central laser (15), the upper ends of the pipelines are fixed on a lower plate (8), the lower ends of the pipelines are fixed on a nozzle (12), an air pressurizing device (17) can perform shape extrusion control on materials in a melting state in a forming process through air, the strength and the mass density of a workpiece are improved, low-temperature protective air can be circularly cooled in the nozzle through the cooling protective air pipes (9), the temperature in the device is reduced, and.

3. The novel coaxial powder feeding device according to claim 1, further characterized in that: the upper gear shaft (23) drives the rotary table (21) to rotate, an upper magnetic plate (22) and sixty iron sheets (24) are fixed below the rotary table (21), a lower magnetic plate (25) is fixed on the swing table (26), electric energy is generated through the magnetic generating effect of the iron sheets in the rotating process, and the electric energy is transmitted to the electric storage device (30) through the hollow upper gear shaft (23) and the hollow lower gear shaft (28) through wires.

4. The novel coaxial powder feeding device according to claim 1, further characterized in that: the upper plate (4) is fixed with the worm (1), the worm (1) is connected with the left-right sliding device (2), the up-and-down movement of the spray head device is controlled by controlling the worm (1), the left-right sliding device (2) realizes the movement in the left-and-right direction through a pulley A (18), the slide rail is arranged on the front-and-back sliding device (3), the front-and-back sliding device (3) realizes the front-and-back sliding through a pulley B (19), and therefore the whole spray head part can be driven to move in the XYZ direction.