Metal 3D printing equipment inert gas protection structure

Abstract

The utility model relates to metal 3D printing technical field, concretely is a kind of metal 3D printing equipment inert gas protection structure, including sealing structure, the sealing structure includes with the soft gas supply pipe one end fixed connection's mounting seat, the mounting seat other side is fixedly arranged with the fixed installation cylinder sliding connection's extension sleeve and fixedly arranged in the extension sleeve one side's locking lever, the locking lever is used for the rotation locking of the extension sleeve and the fixed installation cylinder. When mounting seat and hard gas supply pipe sliding one end distance, soft gas supply pipe will be set in the outside of hard gas supply pipe, to this can complete the connection between hard gas supply pipe and soft gas supply pipe, since the material of soft gas supply pipe is soft material, so, when soft gas supply pipe and hard gas supply pipe set, soft gas supply pipe can open the opening of hard gas supply pipe to seal first step, simultaneously, extension sleeve and the outer wall of hard gas supply pipe are pasted, can further improve sealing effect.

Description

Technical Field

[0001] This utility model relates to an inert gas protection structure for metal 3D printing equipment, and in particular to an inert gas protection structure for metal 3D printing equipment, belonging to the field of metal 3D printing technology. Background Technology

[0002] Metal 3D printing is a technology that directly manufactures complex metal parts by stacking materials layer by layer. Based on digital models, it uses high-energy beams (such as lasers or electron beams) to precisely melt metal powder or filaments, and achieves rapid prototyping from three-dimensional data to solid parts through repeated melting-solidification processes.

[0003] When using metal 3D printing equipment, inert gas is usually used to "wash" the inside of the equipment. The ultimate goal is to ensure high quality, high safety and high consistency in the printing process.

[0004] Most devices have their gas storage boxes connected to the printer's interior, meaning the gas is stored inside before use. Currently, the connection between the storage box and the piping is often detachable. To protect the inert gas and prevent leakage, a sealing ring is typically used to seal the connection. However, these sealing rings are usually fixed to other structures. Frequent disassembly of the piping and the box will inevitably damage the sealing ring, reducing its sealing effectiveness and ultimately causing it to lose its seal.

[0005] Therefore, it is urgent to improve the inert gas protection structure of metal 3D printing equipment to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of this invention is to provide an inert gas protection structure for metal 3D printing equipment, which not only allows for quick disassembly and installation, but also ensures that no gas leakage occurs during the transportation process.

[0007] To achieve the above objectives, the main technical solution adopted by this utility model includes: an inert gas protection structure for a metal 3D printing equipment, comprising a gas storage box and a fixed mounting cylinder fixedly disposed on one side of the gas storage box, a rigid gas delivery pipe fixedly disposed inside the fixed mounting cylinder, one end of the rigid gas delivery pipe extending into the interior of the gas storage box, and a flexible gas delivery pipe sleeved on the end of the rigid gas delivery pipe away from the gas storage box, wherein the rigid gas delivery pipe and the flexible gas delivery pipe are used in conjunction to inject gas into the interior of the gas storage box;

[0008] A sealing structure, comprising a mounting base fixedly connected to one end of the flexible air delivery pipe, an extension sleeve fixedly disposed on the other side of the mounting base and slidably connected to the fixed mounting cylinder, and a locking rod fixedly disposed on one side of the extension sleeve, the locking rod being used for rotational locking of the extension sleeve and the fixed mounting cylinder;

[0009] The mounting base and the extension sleeve have the same diameter, and both are slightly larger than the diameter of the rigid air delivery pipe.

[0010] Preferably, a rotating ring is fixedly provided on one side of the protruding part of the mounting base, and a ring rail groove is rotatably connected to the rotating ring. A sealing airbag is fixedly provided on the side of the ring rail groove away from the rotating ring, and the side of the sealing airbag away from the ring rail groove is in contact with the outer wall of the gas storage box.

[0011] Preferably, a mounting groove with the same diameter as the fixed mounting cylinder is provided on one side of the gas storage box, and the fixed mounting cylinder is fixedly connected to the gas storage box through the mounting groove.

[0012] Preferably, a first sliding groove is provided on one side of the mounting groove, one end of which extends to the outside of the gas storage box. A first locking groove is also provided on one side of the mounting groove, and the first locking groove communicates with the first sliding groove.

[0013] Preferably, the fixed mounting cylinder also has a second sliding groove and a second locking groove on one side, which are the same in size, position and direction as the first sliding groove and the first locking groove.

[0014] Preferably, the locking rods are slidably connected to the second sliding groove and the second locking groove.

[0015] Preferably, an ejector spring is fixedly provided on the inner wall of the end of the fixed mounting cylinder that is fixed to the rigid air supply pipe. The ejector spring is located between the fixed mounting cylinder and the rigid air supply pipe, and the ejector spring is used to eject the mounting base.

[0016] This utility model has at least the following beneficial effects:

[0017] Before using the gas storage box, staff can quickly connect the flexible gas delivery tube to the rigid gas delivery tube to allow gas to enter the gas storage box for use by the printing equipment.

[0018] After the mounting base slides a certain distance from the rigid air supply tube, the flexible air supply tube will be sleeved on the outside of the rigid air supply tube, thus completing the connection between the rigid and flexible air supply tubes. Since the flexible air supply tube is made of a soft material, when the flexible air supply tube is sleeved on the rigid air supply tube, it can seal the opening of the rigid air supply tube in advance. At the same time, the extended sleeve fits against the outer wall of the rigid air supply tube, which can further improve the sealing effect. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 This is a schematic diagram of the internal three-dimensional structure of the gas storage box of an inert gas protection structure for a metal 3D printing device according to an embodiment of this utility model.

[0021] Figure 2 This is a schematic diagram showing the connection between the gas storage box and the mounting base of an inert gas protection structure for a metal 3D printing device according to an embodiment of this utility model.

[0022] Figure 3 This is a schematic diagram of the inner wall of the mounting groove of an inert gas protection structure for a metal 3D printing device according to an embodiment of this utility model.

[0023] Figure 4 This is a schematic diagram showing the disassembled mounting base and fixed mounting cylinder of an inert gas protection structure for a metal 3D printing device according to an embodiment of this utility model.

[0024] Figure 5 This is a schematic diagram showing the connection between the fixed mounting cylinder and the ejector spring of an inert gas protection structure for a metal 3D printing device in an embodiment of this utility model.

[0025] In the diagram, 1 is a gas storage box; 2 is a rigid gas delivery pipe; 3 is a fixed mounting cylinder; 301 is an ejector spring; 4 is a flexible gas delivery pipe; 5 is a mounting base; 501 is an extension sleeve; 502 is a locking rod; 503 is a swivel ring; 6 is a sealing airbag; 601 is a ring rail groove; 7 is a mounting groove; 8 is a first sliding groove; 801 is a second sliding groove; 9 is a first locking groove; and 901 is a second locking groove. Detailed Implementation

[0026] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0027] Examples, such as Figures 1-5As shown, an inert gas protection structure for a metal 3D printing equipment includes a gas storage box 1 and a fixed mounting cylinder 3 fixedly disposed on one side of the gas storage box 1. A rigid gas delivery pipe 2 is fixedly disposed inside the fixed mounting cylinder 3. One end of the rigid gas delivery pipe 2 extends into the gas storage box 1, and a flexible gas delivery pipe 4 is sleeved on the end of the rigid gas delivery pipe 2 away from the gas storage box 1. The rigid gas delivery pipe 2 and the flexible gas delivery pipe 4 are used together to inject gas into the gas storage box 1. Before using the gas storage box 1, the operator can connect the flexible gas delivery pipe 4 to the rigid gas delivery pipe 2 by quick connection, so that gas can enter the gas storage box 1 for storage and use by the printing equipment.

[0028] The sealing structure includes a mounting base 5 fixedly connected to one end of the flexible air delivery pipe 4, an extension sleeve 501 fixedly disposed on the other side of the mounting base 5 and slidably connected to the fixed mounting cylinder 3, and a locking rod 502 fixedly disposed on one side of the extension sleeve 501. The locking rod 502 is used for rotational locking of the extension sleeve 501 and the fixed mounting cylinder 3. The mounting base 5 and the extension sleeve 501 have the same diameter, and both are slightly larger than the diameter of the rigid air delivery pipe 2. Before the flexible air delivery pipe 4 is connected to the rigid air delivery pipe 2, the mounting base 5 will first be slidably connected to the rigid air delivery pipe 2 through the extension sleeve 501. Meanwhile, one end of the extended sleeve 501 will be inserted between the fixed mounting sleeve 3 and the rigid air supply pipe 2. After the mounting base 5 and the rigid air supply pipe 2 have slid a distance, the flexible air supply pipe 4 will be sleeved on the outside of the rigid air supply pipe 2. This completes the connection between the rigid air supply pipe 2 and the flexible air supply pipe 4. Since the flexible air supply pipe 4 is made of a flexible material, when the flexible air supply pipe 4 is sleeved on the rigid air supply pipe 2, the flexible air supply pipe 4 can seal the opening of the rigid air supply pipe 2 in advance. At the same time, the extended sleeve 501 fits against the outer wall of the rigid air supply pipe 2, which can further improve the sealing effect.

[0029] To further enhance the sealing effect, a rotating ring 503 is fixedly installed on one side of the protruding part of the mounting base 5. A ring groove 601 is rotatably connected to the rotating ring 503. A sealing airbag 6 is fixedly installed on the side of the ring groove 601 away from the rotating ring 503. The side of the sealing airbag 6 away from the ring groove 601 is in contact with the outer wall of the gas storage box 1. When the mounting base 5 is slidably connected to the fixed mounting cylinder 3, the rotating ring 503 will contact or even slide with the ring groove 601. When the mounting base 5 is further squeezed and locked, the rotating ring 503 will laterally squeeze the ring groove 601, so that the sealing airbag 6 can be squeezed. The squeezed sealing airbag 6 can expand its area, thereby further increasing the sealing effect of the connection between the mounting base 5 and the fixed mounting cylinder 3.

[0030] Furthermore, a mounting groove 7 with the same diameter as the fixed mounting cylinder 3 is provided on one side of the gas storage box 1. The fixed mounting cylinder 3 is fixedly connected to the gas storage box 1 through the mounting groove 7. A first sliding groove 8 is provided on one side of the mounting groove 7. One end of the first sliding groove 8 extends to the outside of the gas storage box 1. A first locking groove 9 is also provided on one side of the mounting groove 7. The first locking groove 9 communicates with the first sliding groove 8.

[0031] The fixed mounting cylinder 3 also has a second sliding groove 801 and a second locking groove 901 on one side, which are the same size, position and opening direction as the first sliding groove 8 and the first locking groove 9. The locking rod 502 is slidably connected to the second sliding groove 801 and the second locking groove 901. The second sliding groove 801 and the second locking groove 901 are the same size, position and opening direction as the first sliding groove 8 and the first locking groove 9, respectively. So when the mounting base 5 is slidably connected to the fixed mounting cylinder 3, the locking rod 502 can slide through the first sliding groove 8 and the second sliding groove 801, without affecting the sliding connection between the mounting base 5 and the fixed mounting cylinder 3. At the same time, after the mounting base 5 is slidably connected to the fixed mounting cylinder 3, the user can rotate the mounting base 5 to make the locking rod 502 slide with the second locking groove 901 and the first locking groove 9, thereby locking the connection between the mounting base 5 and the fixed mounting cylinder 3.

[0032] Furthermore, an ejector spring 301 is fixedly installed on the inner wall of one end of the fixed mounting cylinder 3 that is fixed to the rigid air supply pipe 2. The ejector spring 301 is located between the fixed mounting cylinder 3 and the rigid air supply pipe 2. The ejector spring 301 is used to eject the mounting seat 5. When the mounting seat 5 needs to be separated from the fixed mounting cylinder 3, the mounting seat 5 is rotated in the opposite direction so that the locking rod 502 can be re-slidably connected with the first sliding groove 8 and the second sliding groove 801. At this time, the ejector spring 301 can eject the extension sleeve 501 that is in contact with it, thereby assisting in the separation of the mounting seat 5 from the fixed mounting cylinder 3.

[0033] In this embodiment, as Figures 1-5 As shown in this embodiment, the principle of an inert gas protection structure for a metal 3D printing device is as follows:

[0034] Before using the gas storage box 1, the staff can connect the flexible gas delivery tube 4 to the rigid gas delivery tube 2 in a quick-connect manner so that the gas can enter the gas storage box 1 for storage in the printing equipment.

[0035] After the mounting base 5 slides a certain distance from the rigid air supply pipe 2, the flexible air supply pipe 4 will be sleeved on the outside of the rigid air supply pipe 2, thus completing the connection between the rigid air supply pipe 2 and the flexible air supply pipe 4. Since the flexible air supply pipe 4 is made of a soft material, when the flexible air supply pipe 4 is sleeved on the rigid air supply pipe 2, the flexible air supply pipe 4 can seal the opening of the rigid air supply pipe 2 in advance. At the same time, the extended sleeve 501 fits against the outer wall of the rigid air supply pipe 2, which can further improve the sealing effect.

[0036] When the mounting base 5 and the fixed mounting cylinder 3 are slidably connected, the rotating ring 503 will contact and even slide with the ring groove 601. When the mounting base 5 is further squeezed and locked, the rotating ring 503 will laterally squeeze the ring groove 601, so that the sealing airbag 6 can be squeezed. The squeezed sealing airbag 6 can expand its area, thereby further increasing the sealing effect of the connection between the mounting base 5 and the fixed mounting cylinder 3.

[0037] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0038] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0039] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. An inert gas protection structure for a metal 3D printing device, comprising a gas storage box (1) and a fixed mounting cylinder (3) fixedly disposed on one side of the gas storage box (1), characterized in that: A rigid gas delivery pipe (2) is fixedly installed inside the fixed installation cylinder (3). One end of the rigid gas delivery pipe (2) extends into the gas storage box (1). A flexible gas delivery pipe (4) is sleeved on the end of the rigid gas delivery pipe (2) away from the gas storage box (1). The rigid gas delivery pipe (2) and the flexible gas delivery pipe (4) are used together to inject gas into the gas storage box (1). The sealing structure includes a mounting base (5) fixedly connected to one end of the flexible air supply pipe (4), an extension sleeve (501) fixedly disposed on the other side of the mounting base (5) and slidably connected to the fixed mounting cylinder (3), and a locking rod (502) fixedly disposed on one side of the extension sleeve (501). The locking rod (502) is used for rotational locking of the extension sleeve (501) and the fixed mounting cylinder (3). The mounting base (5) and the extension sleeve (501) have the same diameter, and both are slightly larger than the diameter of the rigid air supply pipe (2).

2. The inert gas protection structure for a metal 3D printing device according to claim 1, characterized in that: A rotating ring (503) is fixedly provided on one side of the protruding part of the mounting base (5). A ring groove (601) is rotatably connected to the rotating ring (503). A sealing airbag (6) is fixedly provided on the side of the ring groove (601) away from the rotating ring (503). The side of the sealing airbag (6) away from the ring groove (601) is in contact with the outer wall of the gas storage box (1).

3. The inert gas protection structure for a metal 3D printing device according to claim 1, characterized in that: The gas storage box (1) has an installation groove (7) with the same diameter as the fixed installation cylinder (3) on one side, and the fixed installation cylinder (3) is fixedly connected to the gas storage box (1) through the installation groove (7).

4. The inert gas protection structure for a metal 3D printing device according to claim 3, characterized in that: The mounting groove (7) has a first sliding groove (8) on one side, one end of which extends to the outside of the gas storage box (1). The mounting groove (7) also has a first locking groove (9) on one side, which communicates with the first sliding groove (8).

5. The inert gas protection structure for a metal 3D printing device according to claim 4, characterized in that: The fixed mounting cylinder (3) also has a second sliding groove (801) and a second locking groove (901) on one side, which are the same in size, position and opening direction as the first sliding groove (8) and the first locking groove (9).

6. The inert gas protection structure for a metal 3D printing device according to claim 5, characterized in that: The locking rods (502) are all slidably connected to the second sliding groove (801) and the second locking groove (901).

7. The inert gas protection structure for a metal 3D printing device according to claim 1, characterized in that: An ejector spring (301) is fixedly provided on the inner wall of one end of the fixed mounting cylinder (3) and the rigid air supply pipe (2). The ejector spring (301) is located between the fixed mounting cylinder (3) and the rigid air supply pipe (2) and is used to eject the mounting base (5).

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