CN219818040U

CN219818040U - Additive manufacturing device

Info

Publication number: CN219818040U
Application number: CN202320171165.XU
Authority: CN
Inventors: 密林; 蔡海军
Original assignee: Kunshan Crystalline New Materials Research Institute Co ltd
Current assignee: Kunshan Crystalline New Materials Research Institute Co ltd
Priority date: 2023-02-09
Filing date: 2023-02-09
Publication date: 2023-10-13
Anticipated expiration: 2033-02-09

Abstract

The utility model provides an additive manufacturing device, which comprises a first supporting platform, wherein a first supporting surface is arranged on the top surface of the first supporting platform and is used for placing a printing platform, a spraying mechanism is arranged on the side, far away from the supporting platform, of the printing platform, the spraying mechanism sprays metal liquid on the printing platform, the first sliding component is arranged on the first supporting platform, the extending direction is a first direction, the second sliding component is arranged on the side, far away from the first supporting platform, of the first sliding component, the extending direction of the second sliding component is a second direction, the first sliding component can slide along the first direction, the second sliding component is arranged on the side, far away from the first sliding component, of the second sliding component, and the printing platform can slide along the second direction.

Description

Additive manufacturing device

Technical Field

The utility model relates to the technical field of additive manufacturing, in particular to an additive manufacturing device.

Background

Additive manufacturing is also called 3D printing, belongs to a rapid prototyping technology, and is a technology for constructing an object by using powdery metal or plastic and other bondable materials based on a digital model file in a layer-by-layer printing mode, wherein in the prior art, a spraying mechanism is commonly used for spraying molten metal liquid on a motion platform to realize printing at present;

as shown in the patent with application number CN202211524470.9, the process needs to print in a sealed environment, the airtight space is limited, the moving platform is usually located below the nozzle, and the vertical distance between the moving platform and the nozzle can be adjusted only by moving up and down along the limit rod, so that the moving track is single, and the diversity of the shape and the structure of the printed product is greatly limited.

Disclosure of Invention

In view of the foregoing drawbacks or disadvantages of the prior art, the present utility model is directed to an additive manufacturing apparatus, comprising:

the printing device comprises a first supporting platform, a second supporting platform and a printing platform, wherein the top surface of the first supporting platform is provided with a first supporting surface which is used for placing the printing platform;

the spraying mechanism is arranged on the side, far away from the supporting platform, of the printing platform, and can spray molten metal on the printing platform;

the first sliding component is arranged on the first supporting platform, and the extending direction of the first sliding component is a first direction;

the second sliding assembly is arranged on the side, away from the first supporting platform, of the first sliding assembly, the extending direction of the second group of sliding parts is a second direction, the second direction is perpendicular to the first direction, and the second sliding assembly can slide on the first sliding assembly along the first direction; the second sliding component is far away from the first sliding component, the printing platform is arranged on the side of the second sliding component, and the printing platform can slide on the second sliding component along the second direction.

In a preferred embodiment, guide groups are arranged on two sides of the first support platform along the second direction, each guide group comprises a plurality of first guide rods distributed and arranged along the first direction, a first guide ring is sleeved on each first guide rod, each first guide ring is connected with the first support platform close to the first support platform, each first guide ring can move on each first guide rod along a third direction, and the third direction is perpendicular to the first direction and the second direction.

In a preferred embodiment, the first slide assembly comprises:

the two first sliding rails are distributed and arranged on the first supporting surface along the second direction;

the first sliding blocks are slidably connected to the corresponding first sliding rails;

the second support platform is arranged on the side, away from the first sliding rail, of the first sliding block, a first support rod is arranged on the side, close to the first support platform, of the second support platform, a first sliding ring is sleeved on the first support rod, and the side, close to the second support platform, of the first sliding ring is in butt joint with the bottom surface of the second support platform;

the first driving assembly is used for driving the first sliding ring to slide along the first direction and driving the second supporting platform to slide.

In a preferred embodiment, the second slide assembly comprises:

the two second sliding rails are distributed and arranged on the second supporting platform along the first direction;

the second sliding blocks are slidably connected to the corresponding second sliding rails, the side, away from the second sliding rails, of the second sliding blocks is provided with the printing platform, the side, away from the first supporting platform, of the second supporting platform is provided with a second supporting rod, the second supporting rod is sleeved with a second sliding ring, and the side, away from the second supporting platform, of the second sliding ring is abutted to the bottom surface of the printing platform;

the second driving assembly is used for driving the second slip ring to slide along the second direction and driving the printing platform to slide.

In a preferred embodiment, the injection mechanism comprises:

the first crucible is arranged on the side, far away from the first supporting platform, of the printing platform, a first cavity is formed in the first crucible, a metal block to be melted is placed in the first cavity, and a first opening communicated with the first cavity is formed in the top of the first crucible;

the heating assembly is sleeved outside the first crucible and is used for heating and preserving heat of the first crucible so as to enable the metal block to be melted into the molten metal;

and the third driving assembly is used for driving the first crucible to rotate, the direction of the rotating shaft is the second direction, and the molten metal is poured out from the first opening.

In a preferred embodiment, the first crucible is sleeved with a spiral heating pipe, the side, away from the first crucible, of the spiral heating pipe is connected with the third driving assembly, and the spiral heating pipe is used for heating and insulating the first crucible.

In a preferred embodiment, the first crucible is provided with a second crucible near the printing platform, a second cavity is arranged in the second crucible, an injection hole communicated with the second cavity is arranged at the bottom of the second crucible, and the molten metal flows into the second cavity from the first cavity and then is injected to the printing platform from the injection hole.

In a preferred embodiment, a first chute is arranged on the side, close to the printing platform, of the first crucible, the second crucible is arranged on the side, far away from the first crucible, of the first chute, and the molten metal poured out of the first opening flows into the second cavity from the first chute.

In a preferred embodiment, the second crucible has a third cavity near the first chute, the third cavity is communicated with the second cavity, and a vacuum pressure difference is arranged between the third cavity and the second cavity, and is used for pressing the molten metal in the third cavity into the second cavity.

In a preferred embodiment, the printing platform is provided with a fourth cavity, a first pipeline is coiled in the fourth cavity, and circulating cooling water is arranged in the first pipeline and used for cooling the molten metal sprayed on the printing platform.

In summary, the present utility model provides an additive manufacturing apparatus, including a first supporting platform, the top surface has a first supporting surface, the first supporting surface is used for placing a printing platform, the spraying mechanism is disposed on a side of the printing platform far away from the supporting platform, the spraying mechanism can spray metal liquid onto the printing platform, the first sliding component is disposed on the first supporting platform, the extending direction of the first sliding component is a first direction, the second sliding component is disposed on a side of the first sliding component far away from the supporting mechanism, the extending direction of the second sliding component is a second direction, the second sliding component can slide on the first sliding component along the first direction, the side of the second sliding component far away from the first sliding component is provided with the printing platform, and the printing platform can slide on the second sliding component along the second direction.

Drawings

Fig. 1 is a schematic structural diagram of the additive manufacturing apparatus according to an embodiment of the present utility model;

fig. 2 is a schematic front view of the additive manufacturing apparatus according to an embodiment of the present utility model;

FIG. 3 is an assembly schematic of the additive manufacturing apparatus according to an embodiment of the present utility model;

the text labels in the figures are expressed as:

1. a first support platform; 2. a first slide assembly; 3. a second slide assembly; 4. a printing platform; 5. a first guide ring; 6. a first guide bar; 7. a first support bar; 8. a second support bar; 9. a spraying platform; 10. a second crucible; 11. a third drive assembly; 12. a heating assembly; 13. a first crucible; 14. a chain; 15. a first compression bar, 16, a water inlet pipeline; 17. a first rotation shaft; 18. a first chute; 19. a first slip ring; 20. a second cavity; 21. a third cavity; 22. a second slip ring; 23. a first slide rail; 24. a first slider; 25. a second slide rail; 26. a printing chamber; 27. a melting space; 28. a first revolving door.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

As mentioned in the background art, the present utility model provides an additive manufacturing device, which comprises:

the printing device comprises a first supporting platform 1, wherein the top surface of the first supporting platform 1 is provided with a first supporting surface, and the first supporting surface is used for placing a printing platform 4;

the spraying mechanism is arranged on the side, far away from the supporting platform, of the printing platform 4, and can spray molten metal on the printing platform 4;

the first sliding component 2 is arranged on the first supporting platform 1, and the extending direction of the first sliding component 2 is a first direction;

the second sliding component 3 is arranged on the side, away from the first supporting platform 1, of the first sliding component 2, the extending direction of the second sliding component 3 is a second direction, the second direction is perpendicular to the first direction, and the second sliding component 3 can slide on the first sliding component 2 along the first direction; the second sliding component 3 is arranged on the side far away from the first sliding component 2, and the printing platform 4 is arranged on the second sliding component 3 and can slide along the second direction.

Referring to fig. 1 and 3, the additive manufacturing device is integrally assembled into the 3D printing chamber 26, a housing is arranged outside the printing chamber 26, a first space is arranged in the housing, the first space comprises a melting space 27 for placing the first crucible 13 and the electronic intermediate frequency furnace, and a printing space for placing the printing platform 4 and the like, the first space has smaller capacity due to the fact that the device is mainly applied to laboratory experiments, the first space is used for accommodating the integral device, a first rotating door 28 rotatably connected with a side wall is further arranged on the housing, the metal liquid is molten aluminum liquid, when the device is directly seen in the front-back direction, the second direction is the left-right direction of the device, the first sliding component 2 is driven by a driving motor adapted to the first sliding component to slide, the second sliding component 3 is driven by a driving motor adapted to the second sliding component to slide the second sliding component, and the second sliding component are independent of each other, the second sliding component and do not interfere with each other, the first sliding component can flexibly control the sliding component according to the required running sequence, and the first sliding component can realize the flexible printing platform in a flexible and flexible printing structure along the flexible printing platform, and the flexible printing structure can realize the flexible printing movement state along the flexible printing platform.

In a preferred embodiment, the first support platform 1 is provided with guide groups on two sides along the second direction, each guide group includes a plurality of first guide rods 6 distributed and arranged along the first direction, each first guide rod 6 is sleeved with a first guide ring 5, each first guide ring 5 is close to the first support platform 1 and connected with the first support platform 1, each first guide ring 5 can move on each first guide rod 6 along a third direction, and the third direction is perpendicular to the first direction and the second direction.

Referring to fig. 1, three first guide rods 6 are respectively disposed on two sides of the first support platform 1, the third direction is the up-down direction of the device, the first support platform 1 is driven by an independent driving motor to move along the third direction, and the first guide ring 5 slides on the first guide rods 6 to limit the sliding position of the first support platform 1, so that flexible movement of the whole printing platform 4 along three directions can be realized.

In a preferred embodiment, the first sliding assembly 2 comprises:

the two first sliding rails 23 are distributed and arranged on the first supporting surface along the second direction;

a first slider 24, where the first slider 24 is slidably connected to each of the first slide rails 23 corresponding to the first slider 24;

the second support platform is arranged on the side, away from the first sliding rail 23, of the first sliding block 24, a first support rod 7 is arranged on the side, close to the first support platform 1, of the second support platform, a first sliding ring 19 is sleeved on the first support rod 7, and the side, close to the second support platform, of the first sliding ring 19 is in butt joint with the bottom surface of the second support platform;

the first driving assembly is used for driving the first sliding ring 19 to slide along the first direction and driving the second supporting platform to slide.

Referring to fig. 1 and 2, the first supporting surface is provided with two opposite first supporting tables, each first supporting table is provided with a first sliding rail 23, the first supporting table can raise the height of the first sliding rail 23 to enable the first sliding block 24 in an i shape to be sleeved outside the first sliding rail 23 and slide, the first supporting rod 7 is fixedly connected to the first supporting platform 1, the first sliding ring 19 is arranged in the middle of the first supporting rod 7, the first driving assembly drives the first sliding ring 19 to slide along with the second supporting platform, and the first sliding block 24 and the first sliding rail 23 cooperate to limit the sliding position of the second supporting platform.

In a preferred embodiment, the second sliding assembly 3 comprises:

the two second sliding rails 25 are distributed and arranged on the second supporting platform along the first direction;

the second sliding blocks are slidably connected to the corresponding second sliding rails 25, the side, away from the second sliding rails 25, of each second sliding block is provided with the printing platform 4, the side, away from the first supporting platform 1, of each second supporting platform is provided with a second supporting rod 8, the second supporting rods 8 are sleeved with second sliding rings 22, and the side, away from the second supporting platform, of each second sliding ring 22 is abutted against the bottom surface of the printing platform 4;

and the second driving assembly is used for driving the second slip ring 22 to slide along the second direction and driving the printing platform 4 to slide.

Referring to fig. 1 and 2, the second supporting surface is provided with two opposite second supporting tables, each second supporting table is provided with a second sliding rail 25, the second supporting table can raise the height of the second sliding rail 25 to enable the second sliding block with an i shape to be sleeved outside the second sliding rail 25 and slide, the second supporting rod 8 is fixedly connected to the second supporting platform, the second sliding ring 22 is arranged in the middle of the first supporting rod 7, the second driving assembly drives the second sliding ring 22 to slide along with the printing platform 4, and the second sliding block and the second sliding rail 25 cooperate to limit the sliding position of the printing platform 4.

In a preferred embodiment, the injection mechanism comprises:

the first crucible 13 is arranged on the side, far away from the first supporting platform 1, of the printing platform 4, a first cavity is formed in the first crucible 13, a metal block to be melted is placed in the first cavity, and a first opening communicated with the first cavity is formed in the top of the first crucible 13;

the heating assembly 12 is sleeved outside the first crucible 13, and the heating assembly 12 is used for heating and preserving heat of the first crucible 13 so as to enable the metal block to be melted into the molten metal;

and the third driving assembly 11 is used for driving the first crucible 13 to rotate, the direction of the rotating shaft is the second direction, and the molten metal is poured out from the first opening.

Referring to fig. 1, the heating assembly 12 and the first crucible 13 form an integral heating spraying structure, the third driving assembly 11 tilts the heating spraying structure integrally, the third driving assembly 11 includes two driving modes of electric driving and manual driving, the third driving assembly 11 includes a first rotating shaft 17, one end of the first rotating shaft 17 is connected with the heating spraying structure, the first rotating shaft 17 rotates through a chain 14 sleeved outside an electric driving gear, a first pressing rod 15 is further arranged on the gear, the first pressing rod 15 can manually rotate the first rotating shaft 17, rotation of the heating assembly 12 and the first crucible 13 can be realized, and in an experiment, molten metal in the first cavity can be tilted out by adjusting a rotating angle.

In a preferred embodiment, the first crucible 13 is sleeved with a spiral heating tube, and the side of the spiral heating tube away from the first crucible 13 is connected with the third driving assembly 11, and the spiral heating tube is used for heating and insulating the first crucible 13.

Referring to fig. 1, the heating component 12 is an electronic intermediate frequency furnace, and includes a spiral heating pipe sleeved outside the first crucible 13, and is heated to melt aluminum liquid, so that full-power melting can be realized, constant power control can be performed, speed of the aluminum liquid in the melting process is increased, temperature is constant, and the temperature can be accurately adjusted from low temperature to high temperature, the highest temperature can reach 1300 ℃, printing of high-temperature liquid metal materials including part of composite materials can be realized, low-melting-point alloy materials, high-melting-point alloy materials and special materials can be printed, and the first crucible 13 and the electronic intermediate frequency furnace form an integral heating injection structure, so that rapid heating and heat preservation effects can be realized.

In a preferred embodiment, the first crucible 13 is provided with a second crucible 10 near the printing platform 4, a second cavity 20 is provided in the second crucible 10, an injection hole communicating with the second cavity 20 is provided at the bottom of the second crucible 10, and the molten metal flows into the second cavity 20 from the first cavity and then is injected to the printing platform 4 from the injection hole.

Referring to fig. 1, the first crucible 13 is provided with an injection platform 9 near the side of the printing platform 4, a first opening is provided in the middle of the injection platform 9, the second crucible 10 is embedded in the first opening, the second crucible 10 is an injection crucible, molten metal flows into the second cavity 20 from the first cavity, and is injected onto the printing platform 4 from the injection hole, and at this time, the printing platform 4 can move along any direction or sequence of the first direction, the second direction and the third direction, and the injection range is adjusted to realize the diversity of printing finished products.

In a preferred embodiment, the first crucible 13 is provided with a first chute 18 near the printing platform 4, the first chute 18 is provided with the second crucible 10 far away from the first crucible 13, and the molten metal poured out from the first opening flows into the second cavity 20 from the first chute 18.

Referring to fig. 2, the first chute 18 is in a slide shape with a top portion and a bottom portion, and the projection of the first crucible 13 along the third direction has a coincident surface with the upper end of the first chute 18, so that the molten metal in the first crucible 13 can be poured onto the first chute 18, and then the projection of the bottom end of the first chute 18 along the third direction has a coincident surface with the second crucible 10 due to gravity flow, so that the molten metal flowing down the first chute 18 can flow into the second cavity 20.

In a preferred embodiment, the second crucible 10 has a third cavity 21 near the first chute 18, the third cavity 21 communicates with the second cavity 20, and a vacuum pressure difference is formed between the third cavity 21 and the second cavity 20, and the vacuum pressure difference is used to press the molten metal in the third cavity 21 into the second cavity 20.

Referring to fig. 2, the second crucible 10 includes a third cavity 21 at the top, which is in communication with the second cavity 20, and the absolute pressure of the third cavity 21 is greater than the absolute pressure of the second cavity 20, so that the molten metal can flow from the third cavity 21 into the second cavity 20 and be ejected from the ejection port.

In a preferred embodiment, the printing platform 4 is provided with a fourth cavity, a first pipeline is coiled in the fourth cavity, and circulating cooling water is arranged in the first pipeline and used for cooling the molten metal sprayed on the printing platform 4.

Referring to fig. 1, the printing platform 4 is in a hollow rectangular plate structure, the printing platform 4 has a water inlet pipe 16 and a water outlet pipe which are communicated with the first pipe, and cooling water enters the first pipe through the water inlet pipe 16 and then flows out through the water outlet pipe, and the cooling water is circulated and reciprocated, so that the molten metal sprayed on the printing platform 4 is cooled and then is qualitative.

The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. The foregoing is merely illustrative of the preferred embodiments of this utility model, and it is noted that there is objectively no limit to the specific structure disclosed herein, since numerous modifications, adaptations and variations can be made by those skilled in the art without departing from the principles of the utility model, and the above-described features can be combined in any suitable manner; such modifications, variations and combinations, or the direct application of the inventive concepts and aspects to other applications without modification, are contemplated as falling within the scope of the present utility model.

Claims

1. An additive manufacturing apparatus, comprising:

the printing device comprises a first supporting platform (1), wherein the top surface of the first supporting platform (1) is provided with a first supporting surface, and the first supporting surface is used for placing a printing platform (4);

the spraying mechanism is arranged on the side, far away from the supporting platform, of the printing platform (4), and can spray molten metal on the printing platform (4);

the first sliding assembly (2) is arranged on the first supporting platform (1), and the extending direction of the first sliding assembly (2) is a first direction;

the second sliding component (3) is arranged on the side, far away from the first supporting platform (1), of the first sliding component (2), the extending direction of the second sliding component (3) is a second direction, the second direction is perpendicular to the first direction, and the second sliding component (3) can slide on the first sliding component (2) along the first direction; the second sliding component (3) is far away from the first sliding component (2), the printing platform (4) is arranged on the side, and the printing platform (4) can slide on the second sliding component (3) along the second direction.

2. Additive manufacturing apparatus according to claim 1, characterized in that: the first support platform (1) is provided with guide groups along two sides of the second direction, each guide group comprises a plurality of first guide rods (6) distributed and arranged along the first direction, each first guide rod (6) is sleeved with a first guide ring (5), each first guide ring (5) is close to the first support platform (1) and connected with the first support platform (1), each first guide ring (5) can move along a third direction on each first guide rod (6), and the third direction is mutually perpendicular to the first direction and the second direction.

3. Additive manufacturing apparatus according to claim 2, characterized in that: the first slide assembly (2) comprises:

the two first sliding rails (23) are distributed and arranged on the first supporting surface along the second direction;

-a first slider (24), said first slider (24) being slidably connected to each of said first slide rails (23) corresponding thereto;

the second support platform is arranged on the side, away from the first sliding rail (23), of the first sliding block (24), a first support rod (7) is arranged on the side, close to the first support platform (1), of the second support platform, a first sliding ring (19) is sleeved on the first support rod (7), and the side, close to the second support platform, of the first sliding ring (19) is in butt joint with the bottom surface of the second support platform;

the first driving assembly is used for driving the first sliding ring (19) to slide along the first direction and driving the second supporting platform to slide.

4. An additive manufacturing apparatus according to claim 3, wherein: the second slide assembly (3) comprises:

the two second sliding rails (25) are distributed and arranged on the second supporting platform along the first direction;

the second sliding blocks are slidably connected to the corresponding second sliding rails (25), the side, away from the second sliding rails (25), of each second sliding block is provided with a printing platform (4), the side, away from the first supporting platform (1), of each second supporting platform is provided with a second supporting rod (8), the second supporting rods (8) are sleeved with second sliding rings (22), and the side, away from the second supporting platform, of each second sliding ring (22) is abutted to the bottom surface of each printing platform (4);

and the second driving assembly is used for driving the second slip ring (22) to slide along the second direction and driving the printing platform (4) to slide.

5. An additive manufacturing apparatus according to claim 3, wherein the injection mechanism comprises:

the first crucible (13), the first crucible (13) is arranged on the side, far away from the first supporting platform (1), of the printing platform (4), a first cavity is formed in the first crucible (13), a metal block to be melted is placed in the first cavity, and a first opening communicated with the first cavity is formed in the top of the first crucible (13);

the heating assembly (12) is sleeved outside the first crucible (13), and the heating assembly (12) is used for heating and preserving the first crucible (13) so as to enable the metal block to be molten into the molten metal;

and the third driving assembly (11) is used for driving the first crucible (13) to rotate, the direction of the rotating shaft is the second direction, and the molten metal is poured out from the first opening.

6. Additive manufacturing apparatus according to claim 5, characterized in that: the first crucible (13) is sleeved with a spiral heating pipe, the side, away from the first crucible (13), of the spiral heating pipe is connected with the third driving assembly (11), and the spiral heating pipe is used for heating and preserving heat of the first crucible (13).

7. Additive manufacturing apparatus according to claim 6, characterized in that: the first crucible (13) is close to the side of the printing platform (4) and is provided with a second crucible (10), a second cavity (20) is arranged in the second crucible (10), the bottom of the second crucible (10) is provided with an injection hole communicated with the second cavity (20), and after the first cavity flows into the second cavity (20), molten metal is injected to the printing platform (4) through the injection hole.

8. Additive manufacturing apparatus according to claim 7, wherein: the first crucible (13) is close to the side of the printing platform (4) and is provided with a first chute (18), the first chute (18) is far away from the side of the first crucible (13) and is provided with a second crucible (10), and molten metal poured out of the first opening flows into the second cavity (20) from the first chute (18).

9. Additive manufacturing apparatus according to claim 8, wherein: the second crucible (10) is provided with a third cavity (21) close to the first chute (18), the third cavity (21) is communicated with the second cavity (20), a vacuum pressure difference is arranged between the third cavity (21) and the second cavity (20), and the vacuum pressure difference is used for pressing the molten metal in the third cavity (21) into the second cavity (20).

10. Additive manufacturing apparatus according to claim 2, characterized in that: the printing platform (4) is internally provided with a fourth cavity, a first pipeline is coiled in the fourth cavity, circulating cooling water is arranged in the first pipeline, and the cooling water is used for cooling molten metal sprayed on the printing platform (4).