SLM equipment machining bin cylinder body structure

Abstract

The utility model relates to the field of laser powder bed fusion, and discloses a structure of a processing bin cylinder body of SLM (selective laser melting) equipment, which comprises four panels I, two panels II and four panels III, the number of the panels I and the number of the panels II are both two, the four panels III, the two panels II and the two panels I are combined to form a piston cavity, and the piston cavity is connected with the piston cavity. A supporting strip is fixedly arranged on the top of the outer side of the first panel, a supporting plate is fixedly arranged on the top of the outer side of the second panel, the inner side of the third panel is of a fillet structure, a concave strip is arranged on the outer side of the third panel, protruding strips are arranged on the first panel and the second panel, the protruding strips and the concave strip are clamped, and two lifting holes are formed in the top of the supporting plate. Compared with the prior art, the utility model has the following advantages and effects: the structural design is simple, the cabin sealing problem and the powder leakage problem in the printing process can be effectively solved, and the assembly efficiency is further improved because the processing and the assembly are more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of laser powder bed fusion, in particular to a structure of a processing chamber cylinder of an SLM equipment. Background Art

[0002] Laser Powder Bed Fusion (LPBF) uses a high-energy-density laser as a heat source to selectively sinter a pre-applied powder surface. The metal powder melts and rapidly solidifies, and new metal powder is then applied to cover the pre-formed areas. This process repeats until the final part is formed.

[0003] For example, the utility model with authorization announcement number CN208305806U discloses an additive manufacturing device, including a molding device and a powder spreading device. The laser selective melting device is a comprehensive structural system that integrates optical, electrical, and mechanical technologies. The device is mainly composed of four modules: the optical path system, the powder spreading system, the platform lifting system, and the gas circulation system. Among them, the platform lifting system is directly related to the molding accuracy of the printed part and the stability of the equipment. Since the molding chamber of the LPBF device must be a closed environment filled with inert gas, and the platform needs to move, how to ensure that there is no air leakage and no powder leakage has always been a difficult problem.

[0004] Past designs typically used four flat plates to form a piston chamber, which inevitably resulted in right angles. This right-angle structure cannot be sealed with felt, sealing strips, or the like. Consequently, the equipment often leaked powder or air due to the up-and-down movement of the platform, rendering the equipment unusable and requiring repairs. This severely impacted printing efficiency and industry development, necessitating the design of a new SLM equipment processing chamber cylinder structure to address these issues.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0006] The purpose of the utility model is to provide a structure of a cylinder body of a processing chamber of an SLM equipment to solve the above-mentioned problem.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions: A structure of a SLM equipment processing chamber cylinder, comprising:

[0008] Panel one, panel two and panel three, the number of panel three is four, the number of panel one and panel two is two, four panel three, two panel two and two panels form a group of piston cavity, the outer top of panel one is fixedly provided with a support bar, and the outer top of panel two is fixedly provided with a support plate.

[0009] The present invention is further configured as follows: the inner sides of the three panels are configured as rounded structures.

[0010] The utility model is further configured as follows: a concave strip is provided on the outer side of the third panel, and convex strips are provided on both the first panel and the second panel, and the convex strips are clamped with the concave strips.

[0011] By adopting the above technical solution, the problems of processing consumables and assembly are reduced.

[0012] The utility model is further configured as follows: two lifting holes are provided on the top of the support plate.

[0013] The utility model is further configured as follows: a plurality of first mounting holes are vertically opened at equal distances at both ends of the outer side of panel three, a plurality of second mounting holes are opened at equal distances at both ends of panel one and panel two, and fixing bolts are provided on the inner sides of the first mounting holes and the second mounting holes.

[0014] The present invention is further configured as follows: a first fastening bolt is provided at the connection between the support bar and the first panel, and a second fastening bolt is provided at the connection between the support plate and the second panel.

[0015] The present invention is further configured as follows: straight notches are provided on the lower end surfaces of the first panel and the second panel.

[0016] By adopting the above technical solution, the sealing performance of a piston that has been running for a long time can be checked, and the assembly with other structures can be facilitated.

[0017] The beneficial effects of the utility model are:

[0018] The utility model has a rounded corner design on the inner side of panel three, which is more in line with the movement requirements of the piston mechanism, and the four panels three are designed to be connected with the two panels one and the two panels two by convex strips on the side of the panels, which reduces the problems of processing consumables and assembly problems, and straight grooves are designed on the lower sides of panel one and panel two for checking the sealing of pistons that run for a long time, and for the convenience of assembly with other structures, two lifting holes are designed on the support plate, which is convenient for assembly with other structures. The structure is simple in design and can effectively solve the cabin sealing problem and powder leakage problem in the printing process. Since processing and assembly are relatively convenient, the assembly efficiency is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a three-dimensional structural diagram of the structure of a processing chamber cylinder of an SLM equipment proposed by the present invention.

[0021] Figure 2 This is a schematic diagram of the exploded structure of the cylinder body of a SLM equipment processing chamber proposed by the present invention.

[0022] Figure 3 This is a schematic diagram of the main structure of the cylinder body of the SLM equipment processing chamber proposed by the present invention.

[0023] Figure 4 This is a side view structural diagram of the structure of a SLM equipment processing chamber cylinder body proposed by the present invention.

[0024] Figure 5 This is a schematic top view of the structure of a cylinder body of a processing chamber of an SLM device proposed in the present invention.

[0025] In the figure, 1, panel one; 2, panel two; 3, panel three; 4, support bar; 5, support plate; 6, lifting hole. DETAILED DESCRIPTION

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The following will clearly and completely describe the technical solutions of the present invention in conjunction with specific embodiments. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0028] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 The utility model provides a structure of a cylinder body of a SLM equipment processing chamber, comprising:

[0029] Panel one 1, panel two 2 and panel three 3, the number of panel three 3 is four, the number of panel one 1 and panel two 2 are two, the four panels three 3, two panels two 2 and two panels one 1 are combined into a piston cavity, a support bar 4 is fixedly provided on the outer top of panel one 1, and a support plate 5 is fixedly provided on the outer top of panel two 2.

[0030] Specifically, the inner side of panel three 3 is set to a rounded structure.

[0031] The above structure better meets the movement requirements of the piston mechanism.

[0032] Specifically, a concave strip is provided on the outer side of the third panel 3, and a convex strip is provided on both the first panel 1 and the second panel 2, and the convex strip is clamped with the concave strip.

[0033] The above structure facilitates assembly of panel three 3 with panel one 1 and panel two 2.

[0034] Specifically, two lifting holes 6 are provided on the top of the support plate 5 .

[0035] The above structure is convenient for assembly with other structures.

[0036] Specifically, multiple first mounting holes are equidistantly opened vertically at both ends of the outer side of panel three 3, multiple second mounting holes are equidistantly opened at both ends of panel one 1 and panel two 2, and fixing bolts are provided on the inner sides of the first mounting holes and the second mounting holes.

[0037] Specifically, a first fastening bolt is provided at the connection between the support bar 4 and the panel 1 , and a second fastening bolt is provided at the connection between the support plate 5 and the panel 2 2 .

[0038] Specifically, straight notches are provided on the lower end surfaces of panel 1 and panel 2 2 .

[0039] The above structure can be used to check the sealing performance of a piston that has been running for a long time, and is also convenient for assembly with other structures.

[0040] It should be noted that this structure has a simple design and can effectively solve the problems of chamber sealing and powder leakage during the printing process. In addition, since it is relatively convenient to process and assemble, the assembly efficiency is further improved.

[0041] The above describes in detail the structure of the SLM equipment processing chamber cylinder provided by the present invention. This article uses specific embodiments to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only intended to help understand the method and core concept of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, various improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A structure of a cylinder body of a SLM equipment processing chamber, characterized in that: include: Panel one (1), panel two (2) and panel three (3), the number of panel three (3) is four, the number of panel one (1) and panel two (2) are two, four panel threes (3), two panel twos (2) and two panel ones (1) are combined to form a piston cavity, the top of the outer side of panel one (1) is fixedly provided with a support bar (4), the top of the outer side of panel two (2) is fixedly provided with a support plate (5), and the inner side of panel three (3) is set as a rounded structure.

2. The structure of the SLM equipment processing chamber cylinder according to claim 1, characterized in that: The outer side of the panel three (3) is provided with a concave strip, and the panel one (1) and the panel two (2) are both provided with a convex strip, and the convex strip and the concave strip are clamped together.

3. The structure of the SLM equipment processing chamber cylinder according to claim 1, characterized in that: Two lifting holes (6) are provided on the top of the support plate (5).

4. The structure of the SLM equipment processing chamber cylinder according to claim 1, characterized in that: A plurality of first mounting holes are vertically opened at equal distances at both ends of the outer side of the panel three (3), and a plurality of second mounting holes are opened at equal distances at both ends of the panel one (1) and the panel two (2), and fixing bolts are provided inside the first mounting holes and the second mounting holes.

5. The structure of the SLM equipment processing chamber cylinder according to claim 1, characterized in that: A first fastening bolt is provided at the connection between the support bar (4) and the first panel (1), and a second fastening bolt is provided at the connection between the support plate (5) and the second panel (2).

6. The structure of the SLM equipment processing chamber cylinder according to claim 1, characterized in that: The lower end surfaces of the panel 1 (1) and the panel 2 (2) are both provided with straight notches.

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