A 3D printing integrated manufacturing apparatus and printing method

Abstract

The application discloses a 3D printing integrated manufacturing device and a printing method. The device can complete integrated platform different surface model construction, namely, different working surfaces of 3D components, and realizes integrated and one-time printing construction.

Description

[Technical Field]

[0001] This invention relates to the field of additive manufacturing technology, and in particular to a 3D printing integrated manufacturing apparatus and printing method. [Background Technology]

[0002] With the upgrading of equipment, the application of additive manufacturing and 3D printing has diversified printing methods and enriched material properties. 3D printing technology is fast, flexible and precise, and has practical applications in aerospace, biomedicine, cultural and creative industries, electronics and electrical engineering and other fields.

[0003] Current additive manufacturing typically involves molding one or more materials into a single piece. The advantages of this method are convenience and lack of shape limitations. However, it also has significant drawbacks. For example, printing a tall, regular model takes a long time; when repairing parts of a workpiece, it's impossible to directly print the repair work onto the repair surface; and printing on existing model surfaces presents considerable challenges.

[0004] Therefore, this invention addresses the aforementioned problems. [Summary of the Invention]

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a 3D printing integrated manufacturing device and printing method. The device uses a printing switching drive mechanism to switch the corresponding molding part of the molding surface to form a molded and cured layer by photocuring the material attached to the material holding tank in the working state. This enables the construction of different surface models of the integrated platform, that is, to achieve integrated, one-time printing construction of different working surfaces of 3D components.

[0006] This invention is achieved through the following technical solution:

[0007] A 3D printing integrated manufacturing apparatus, comprising:

[0008] frame;

[0009] Material holding tank 1, which is located on the frame;

[0010] The 3D printing optical engine system 2 is a multi-wavelength light source system used to generate images and irradiate the material in the material holding tank 1 to obtain a molded and cured layer. It also serves as an illumination and alignment light source. The wavelength used is not sensitive to the material and has a certain transmission capacity in the material so as to observe the existing patterns and conditions of the molded surface.

[0011] An integrated platform 3 is located above the material holding tank 1. The integrated platform 3 includes a platform body 31, and the platform body 31 is provided with a forming surface 32 for multi-angle printing during the printing process.

[0012] Printing switching drive mechanism 4, which is located on the frame, is used to drive the integrated stage 3 to move relative to the material holding tank 1, thereby switching the corresponding molding part of the molding surface 32 to form a molded curing layer by photocuring the material attached to the material holding tank 1 in the working state.

[0013] A stage driving mechanism 5 is located on the frame to drive the integrated stage 3 to move up and down relative to the material holding tank 1, thereby causing the curing layer continuously attached to the molding surface 32 to accumulate and form a 3D component.

[0014] As described above, in a 3D printing integrated manufacturing apparatus, the stage driving mechanism 5 includes a stage driving motor 51 mounted on a frame. The motor shaft of the stage driving motor 51 is movably connected to a stage transmission screw 52 extending along the Z-axis of the frame. A stage sliding seat 53 that can slide along the Z-axis of the frame is slidably connected to the stage transmission screw 52. The printing switching driving mechanism 4 is located between the stage sliding seat 53 and the integrated stage 3.

[0015] As described above, in a 3D printing integrated manufacturing apparatus, the printing switching drive mechanism 4 includes a left and right rotating seat 42 disposed on a stage sliding seat 53, and a rotating seat drive assembly 41 for driving the left and right rotating seat 42 to rotate around the Y-axis of the frame is provided between the left and right rotating seat 42 and the stage sliding seat 53; a pitch tilting seat 44 that can rotate around the X-axis of the frame is connected to the left and right rotating seat 42, and a tilting seat drive assembly 43 for driving the pitch tilting seat 44 to rotate around the X-axis of the frame is provided between the pitch tilting seat 44 and the left and right rotating seat 42; the integrated stage 3 is located on the pitch tilting seat 44.

[0016] As described above, in a 3D printing integrated manufacturing apparatus, the bottom of the material holding tank 1 is provided with a release component 11.

[0017] As described above, in a 3D printing integrated manufacturing apparatus, the 3D printing optical engine system 2 is a DMD, LCD, LCOS, or MicroLED.

[0018] As described above, in a 3D printing integrated manufacturing apparatus, the frame is further provided with a positioning and detection mechanism 6 for assisting in positioning the relative positions of the 3D printing optical engine system 2 and the integrated stage 3.

[0019] As described above, in a 3D printing integrated manufacturing apparatus, the positioning and detection mechanism 6 is located below the material holding tank 1 and on one side of the optical path of the 3D printing optical engine system 2. A beam splitter 7 is provided on the frame and on the optical path of the 3D printing optical engine system 2. The beam splitter 7 is used to make the optical paths of the positioning and detection mechanism 6 and the 3D printing optical engine system 2 conjugate to the forming surface 32.

[0020] In the 3D printing integrated manufacturing apparatus described above, the positioning and detection mechanism 6 is a CCD.

[0021] The present invention also provides a printing method for a 3D printing integrated manufacturing apparatus, wherein the printing method employs a 3D printing integrated manufacturing apparatus as described above, and includes the following steps:

[0022] S1. The integrated platform 3 is driven to move up and down relative to the material holding tank 1 by the platform driving mechanism 5, so that there is a layer thickness gap between the molding part of one of the molding surfaces 32 on the integrated platform 3 and the inner bottom of the material holding tank 1.

[0023] S2. An image is generated by the 3D printing optical engine system 2 and the material in the material holding tank 1 is irradiated to obtain a molding and curing layer, and the molding and curing layer is attached to one of the molding surfaces 32.

[0024] S3. The integrated stage 3 is moved relative to the material holding tank 1 by the printing switching drive mechanism 4, thereby switching the other molding part of the molding surface 32 to form a molded and cured layer by photocuring the material attached to the material holding tank 1 in the working state.

[0025] S3. Repeat steps S1-S3 above until the solidified layer continuously attached to the molding surface 32 accumulates to form a 3D component.

[0026] Compared with the prior art, the present invention has the following advantages:

[0027] 1. This invention uses a printing switching drive mechanism to switch the corresponding molding part of the molding surface to form a molded and cured layer of material attached to the material holding tank in the working state, which can complete the construction of different surface models of the integrated platform, that is, to achieve integrated, one-time printing construction of different working surfaces of 3D components.

[0028] 2. The bottom of the material holding tank is equipped with a release component, which can effectively prevent the cured layer from being damaged during the peeling process and ensure the printing quality of the cured layer.

[0029] 3. To ensure accurate positioning and precise printing, the frame is also equipped with a positioning and detection mechanism to assist in positioning the relative position of the 3D printing optical engine system and the integrated stage.

[0030] 4. The printing method of the present invention uses the above-mentioned 3D printing integrated manufacturing device. Using this printing method, it is possible to complete the construction of different surface models of the integrated platform, that is, to achieve integrated, one-time printing construction of different working surfaces of 3D components. It also has the characteristics of high printing efficiency and simple printing. [Attached Image Description]

[0031] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0032] Figure 1 This is a perspective view of the present invention.

[0033] Figure 2 This is the front view of the present invention.

[0034] Figure 3 This is a partial structural diagram of the present invention.

[0035] Figure 4 This is a schematic diagram of the integrated platform structure in this invention.

[0036] Figure 5 This is a front view of the integrated platform in this invention.

[0037] Figure 6 This is a partial structural diagram of the integrated platform in this invention.

[0038] Figure 7 This is a schematic diagram of the printing process of the present invention.

Detailed Implementation Methods

[0039] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0040] like Figure 1-7 As shown, the present invention provides a 3D printing integrated manufacturing apparatus, comprising: a frame;

[0041] Material holding tank 1, which is located on the frame;

[0042] The 3D printing optical engine system 2 is a multi-wavelength light source system used to generate images and irradiate the material in the material holding tank 1 to obtain a molded and cured layer. It also serves as an illumination and alignment light source. The wavelength used is not sensitive to the material and has a certain transmission capacity in the material so as to observe the existing patterns and conditions of the molded surface.

[0043] An integrated platform 3 is located above the material holding tank 1. The integrated platform 3 includes a platform body 31, and the platform body 31 is provided with a forming surface 32 for multi-angle printing during the printing process.

[0044] Printing switching drive mechanism 4, which is located on the frame, is used to drive the integrated stage 3 to move relative to the material holding tank 1, thereby switching the corresponding molding part of the molding surface 32 to form a molded curing layer by photocuring the material attached to the material holding tank 1 in the working state.

[0045] A stage driving mechanism 5, located on the frame, drives the integrated stage 3 to move up and down relative to the material holding tank 1, thereby accumulating a cured layer continuously attached to the molding surface 32 to form a 3D component. This invention, by switching the corresponding molding part of the molding surface using a printing switching driving mechanism, allows for the photocuring of the cured layer formed by the material attached to the material holding tank in the working state. This enables the construction of different surface models of the integrated stage, achieving integrated, one-time printing construction of different working surfaces of the 3D component.

[0046] The forming surface 32 for multi-angle printing includes at least two forming parts, such as... Figure 4-6 As shown, one molding part is located on the lower end face of the stage body 31, and another molding part is located on the side face of the stage body 31. During the printing process, the printing switching drive mechanism 4 drives the integrated stage 3 to move relative to the material holding tank 1, thereby switching the corresponding molding part of the molding surface 32 to form a cured layer by photocuring the material attached to the material holding tank 1 in the working state. In this invention, the molding surface 32 has three molding parts, such as... Figure 4-6 As shown.

[0047] like Figure 1-3 As shown, in order to improve printing efficiency and ensure transmission stability, the stage drive mechanism 5 includes a stage drive motor 51 mounted on the frame. The motor shaft of the stage drive motor 51 is movably connected to a stage transmission screw 52 extending along the Z-axis of the frame. A stage sliding seat 53 that can slide along the Z-axis of the frame is slidably connected to the stage transmission screw 52. The printing switching drive mechanism 4 is located between the stage sliding seat 53 and the integrated stage 3.

[0048] like Figure 1-3 As shown, to improve printing efficiency and to better switch the corresponding molding part in the working state, the material attached to the material holding tank is used to form a cured layer by photocuring. The printing switching drive mechanism 4 includes a left and right rotating seat 42 disposed on the stage sliding seat 53. A rotating seat drive assembly 41 for driving the left and right rotating seat 42 to rotate around the Y-axis of the frame is provided between the left and right rotating seat 42 and the stage sliding seat 53. A pitch tilting seat 44 that can be rotated around the X-axis of the frame is connected to the left and right rotating seat 42. A tilting seat drive assembly 43 for driving the pitch tilting seat 44 to rotate around the X-axis of the frame is provided between the pitch tilting seat 44 and the left and right rotating seat 42. The integrated stage 3 is located on the pitch tilting seat 44. Preferably, the rotating seat drive assembly 41 can be a rotary cylinder, and the tilting seat drive assembly 43 can be a tilting cylinder.

[0049] like Figure 3As shown, the bottom of the material holding tank 1 is provided with a release component 11, which can effectively prevent the cured layer from being damaged during the peeling process and ensure the printing quality of the cured layer. Preferably, the release component 11 is a release film, release glass, etc.

[0050] Furthermore, the 3D printing optical engine system 2 is a DMD, LCD, LCOS, or MicroLED, etc.

[0051] like Figure 1 , 2 As shown in Figure 7, for accurate positioning and precise printing, the frame is also equipped with a positioning detection mechanism 6 to assist in positioning the relative position of the 3D printing optical engine system 2 and the integrated stage 3. Preferably, the positioning detection mechanism 6 is a CCD. Before the printing process of each layer and each surface, the CCD works to identify the corresponding forming part of the forming surface 32. The 3D printing optical engine system 2 can first observe the corresponding forming part with light that is insensitive to the material, or it can emit a specific pattern to compare with the existing pattern of the forming part to obtain the positioning error. Then, the 3D printing optical engine system 2 shifts the exposure pattern according to the positioning error to ensure that the pattern of the 3D printing optical engine system 2 is accurately irradiated on the corresponding forming part of the forming surface 32, ensuring accurate printing of each layer.

[0052] like Figure 2 , 7 As shown, the positioning detection mechanism 6 is located below the material holding tank 1 and on one side of the optical path of the 3D printing optical engine system 2. A beam splitter 7 is provided on the frame and on the optical path of the 3D printing optical engine system 2. The beam splitter 7 is used to make the optical paths of the positioning detection mechanism 6 and the 3D printing optical engine system 2 conjugate to the forming surface 32.

[0053] like Figure 1-7 As shown, the present invention discloses a printing method for a 3D printing integrated manufacturing apparatus, wherein the printing method employs a 3D printing integrated manufacturing apparatus as described above, and includes the following steps:

[0054] S1. The integrated platform 3 is driven to move up and down relative to the material holding tank 1 by the platform driving mechanism 5, so that there is a layer thickness gap between the molding part of one of the molding surfaces 32 on the integrated platform 3 and the inner bottom of the material holding tank 1.

[0055] S2. The molding part to be integrated is observed by the 3D printing optical engine system 2 using light that is insensitive to the material, the exposure position is determined, and an image is generated by the exposure wavelength and the material in the material holding tank 1 is irradiated to obtain the molding curing layer, and the molding curing layer is attached to one of the molding surfaces 32 of the molding part.

[0056] S3. The integrated stage 3 is moved relative to the material holding tank 1 by the printing switching drive mechanism 4, thereby switching the other molding part of the molding surface 32 to form a molded and cured layer by photocuring the material attached to the material holding tank 1 in the working state.

[0057] S3. Repeat steps S1-S3 above until the solidified layer continuously attached to the molding surface 32 accumulates to form a 3D component. The printing method of the present invention uses the above-mentioned 3D printing integrated manufacturing device. Using this printing method, it is possible to complete the construction of different surface models of the integrated platform, that is, to achieve integrated, one-time printing construction of different working surfaces of the 3D component. At the same time, it also has the characteristics of high printing efficiency and simple printing.

Claims

1. A 3D printing integrated manufacturing device, characterized in that... include: frame; Material holding tank (1), the material holding tank (1) is located on the frame; 3D printing optical engine system (2), the 3D printing optical engine system (2) is used to generate an image and irradiate the material in the material holding tank (1) to obtain a molded and cured layer; An integrated platform (3) is located above a material holding tank (1). The integrated platform (3) includes a platform body (31). The platform body (31) is provided with a forming surface (32) for multi-angle printing during the printing process. The forming surface (32) includes at least two forming parts. Printing switching drive mechanism (4), which is located on the frame to drive the integrated stage (3) to move relative to the material holding tank (1), thereby switching the corresponding molding part of the molding surface (32) in the working state to form a molded curing layer by photocuring the material attached to the material holding tank (1); A stage drive mechanism (5) is located on the frame to drive the integrated stage (3) to move up and down relative to the material holding tank (1), thereby causing the curing layer continuously attached to the molding surface (32) to accumulate and form a 3D component.

2. The 3D printing integrated manufacturing apparatus according to claim 1, characterized in that... The stage drive mechanism (5) includes a stage drive motor (51) mounted on the frame. The motor shaft of the stage drive motor (51) is connected to a stage transmission screw (52) extending along the Z-axis of the frame. A stage slide seat (53) that can slide along the Z-axis of the frame is slidably connected to the stage transmission screw (52). The print switching drive mechanism (4) is located between the stage slide seat (53) and the integrated stage (3).

3. The 3D printing integrated manufacturing apparatus according to claim 2, characterized in that... The printing switching drive mechanism (4) includes a left and right rotating seat (42) mounted on a stage slide seat (53). A rotating seat drive assembly (41) for driving the left and right rotating seat (42) to rotate around the Y-axis of the frame is provided between the left and right rotating seat (42) and the stage slide seat (53). A pitch tilting seat (44) that can rotate around the X-axis of the frame is connected to the left and right rotating seat (42). A tilting seat drive assembly (43) for driving the pitch tilting seat (44) to rotate around the X-axis of the frame is provided between the pitch tilting seat (44) and the left and right rotating seat (42). The integrated stage (3) is located on the pitch tilting seat (44).

4. The 3D printing integrated manufacturing apparatus according to claim 1, characterized in that... The bottom of the material holding tank (1) is provided with a release component (11).

5. The 3D printing integrated manufacturing apparatus according to claim 1, characterized in that... The 3D printing optical engine system (2) is a DMD, LCD, LCOS, or MicroLED.

6. A 3D printing integrated manufacturing apparatus according to any one of claims 1-5, characterized in that... The frame is also equipped with a positioning detection mechanism (6) for assisting in positioning the relative position of the 3D printing optical engine system (2) and the integrated stage (3).

7. The 3D printing integrated manufacturing apparatus according to claim 6, characterized in that... The positioning detection mechanism (6) is located below the material holding tank (1) and on one side of the optical path of the 3D printing optical engine system (2). A beam splitter (7) is provided on the frame and on the optical path of the 3D printing optical engine system (2). The beam splitter (7) is used to make the optical paths of the positioning detection mechanism (6) and the 3D printing optical engine system (2) conjugate to the forming surface (32).

8. The 3D printing integrated manufacturing apparatus according to claim 6, characterized in that... The positioning detection mechanism (6) is a CCD.

9. A printing method for a 3D printing integrated manufacturing apparatus, wherein the printing method employs a 3D printing integrated manufacturing apparatus as described in any one of claims 1-8, characterized in that... Includes the following steps: S1. The integrated platform (3) is driven to move up and down relative to the material holding tank (1) by the platform driving mechanism (5), so that there is a layer thickness gap between the molding part of the molding surface (32) on the integrated platform (3) and the bottom of the material holding tank (1). S2. An image is generated by the 3D printing optical engine system (2) and the material in the material holding tank (1) is irradiated to obtain a molding and curing layer, and the molding and curing layer is attached to one of the molding parts of the molding surface (32). S3. The integrated stage (3) is moved relative to the material holding tank (1) by the printing switching drive mechanism (4), thereby switching the other molding part of the molding surface (32) to form a molded curing layer by photocuring the material attached to the material holding tank (1) in the working state. S3. Repeat steps S1-S3 above until the solidified layer continuously attached to the molding surface (32) accumulates to form a 3D component.

Images