TWM552425U - Three-dimensional stereolithographic 3D printer - Google Patents
Three-dimensional stereolithographic 3D printer Download PDFInfo
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- TWM552425U TWM552425U TW106212087U TW106212087U TWM552425U TW M552425 U TWM552425 U TW M552425U TW 106212087 U TW106212087 U TW 106212087U TW 106212087 U TW106212087 U TW 106212087U TW M552425 U TWM552425 U TW M552425U
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Description
本新型涉及一種3D列印機，尤指一種雷射聚焦準確的立體光固化成型3D列印機。The invention relates to a 3D printing machine, in particular to a stereoscopic light solidification forming 3D printing machine with accurate laser focusing.
現有的立體光固化成型(SLA，Stereo lithography Appearance)3D列印機，是在其機體的頂部設有一可透光的光固化樹脂槽，對應該光固化樹脂槽設有一雷射掃描裝置，在向該光固化樹脂槽內注入光固化樹脂後，以該雷射掃描裝置發出的雷射光向該光固化樹脂槽內照射，使該光固化樹脂內的樹脂逐漸固化在一逐漸向上移動的平台底部，在該平台的底部列印出所需要的工件。The existing Stereo lithography Appearance (SLA) 3D printing machine has a light-transmissive light-curing resin tank on the top of the body, and a laser scanning device is provided corresponding to the photo-curing resin tank. After the photocurable resin is injected into the photocurable resin tank, the laser light emitted from the laser scanning device is irradiated into the photocurable resin tank, and the resin in the photocurable resin is gradually solidified at the bottom of the platform which gradually moves upward. Print the required workpieces at the bottom of the platform.
前述現有的立體光固化成型3D列印機雖然可以列印工件，但由於其雷射掃描裝置採用的是雷射動畫投影機，這種裝置的鏡頭是屬於球面鏡頭，因此當雷射發射的方向距離中心越遠，雷射聚焦的位置就會越偏離焦平面，造成在3D列印機的平台底部層層列印樹脂時，樹脂中間與周圍固化的程度不相同，降低了列印工件的品質。Although the aforementioned stereoscopic stereolithography 3D printer can print the workpiece, since the laser scanning device uses a laser animation projector, the lens of the device belongs to a spherical lens, so when the direction of the laser emission The farther away from the center, the more the focus of the laser will deviate from the focal plane, causing the resin to be cured in the middle and the periphery when the resin is printed on the bottom of the platform of the 3D printer, reducing the quality of the printed workpiece. .
由於現有立體光固化成型3D列印機，以雷射動畫投影機發出的雷射會偏離焦平面，造成掃描列印的工件品質降低的問題。為此，本新型改良雷射掃描裝置，使其發出的雷射都能聚焦在同一平面位置，提升3D列印的製造品質。Due to the existing stereoscopic curing 3D printing machine, the laser emitted by the laser animation projector deviates from the focal plane, which causes the problem of the quality of the workpiece printed by scanning. To this end, the improved laser scanning device of the present invention enables the lasers emitted by the laser to be focused on the same plane position, thereby improving the manufacturing quality of the 3D printing.
為達到上述目的，本新型提供一種立體光固化成型3D列印機，其構造包括：：In order to achieve the above object, the present invention provides a stereolithography 3D printing machine, the configuration of which includes:
一機體，設有一底座，在該底座的頂部設有一光固化樹脂槽，該光固化樹脂槽是透光的槽體；a body having a base, and a light-curing resin groove is disposed on the top of the base, the light-curing resin groove is a light-transmissive groove;
一雷射掃描裝置，是設於該底座內並包括一雷射頭、一雙軸掃描振鏡，以及一平場聚焦鏡，其中該雷射頭是固設於該底座內，該雙軸掃描振鏡位於該雷射頭旁，在該雙軸掃描振鏡靠近該雷射頭的一側設有一擴束鏡組，在該雙軸掃描振鏡內設有一受控制變化角度的反射鏡，該雷射頭射出的雷射光穿過該擴束鏡組後被該反射鏡向上反射，所述的平場聚焦鏡設於該雙軸掃描振鏡的頂端，被該反射鏡向上反射的雷射光穿過該平場聚焦鏡後聚焦在該光固化樹脂槽內的同一平面位置；a laser scanning device is disposed in the base and includes a laser head, a dual-axis scanning galvanometer, and a flat field focusing mirror, wherein the laser head is fixed in the base, and the dual-axis scanning vibration a mirror is disposed beside the laser head, and a beam expander lens is disposed on a side of the dual-axis scanning galvanometer near the laser head, and a controlled angle mirror is disposed in the dual-axis scanning galvanometer. The laser light emitted from the head passes through the beam expander lens and is reflected upward by the mirror. The flat field focusing mirror is disposed at a top end of the biaxial scanning galvanometer, and the laser light reflected upward by the mirror passes through the The flat field focusing mirror is focused on the same planar position in the photocurable resin tank;
一升降平台，該升降平台在該底座頂部結合一機械手臂，該機械手臂朝該光固化樹脂槽上方延伸一懸吊臂，在該懸吊臂的底端結合一平台，該平台位於該光固化樹脂槽的正上方；以及a lifting platform, the lifting platform is coupled with a mechanical arm at the top of the base, the mechanical arm extends a suspension arm above the light curing resin groove, and a platform is coupled to the bottom end of the hanging arm, the platform is located at the light curing Directly above the resin tank;
一控制裝置，分別與該雷射頭、該雙軸掃描振鏡以及該機械手臂電連接，借此控制該雙軸掃描振鏡的該反射鏡以及該平台升降動作。A control device is electrically connected to the laser head, the dual-axis scanning galvanometer and the mechanical arm, respectively, thereby controlling the mirror of the dual-axis scanning galvanometer and the platform lifting movement.
進一步，本新型所述的雷射頭射出的雷射光是波長405nm的藍紫色雷射光。Further, the laser light emitted by the laser head of the present invention is blue-violet laser light having a wavelength of 405 nm.
更進一步，本新型所述的反射鏡的表面形成一反射鍍膜。Furthermore, the surface of the mirror of the present invention forms a reflective coating.
較佳的，本新型所述的底座是鏤空支架，在該底座內的底部結合一底板，所述的雷射掃描裝置以及所述的控制裝置分別設於該底板上。Preferably, the base of the present invention is a hollow bracket, and a bottom portion of the base is coupled to a bottom plate, and the laser scanning device and the control device are respectively disposed on the bottom plate.
本新型使用時，先在該光固化樹脂槽內注入光固化樹脂，該控制裝置控制該平台移動至該光固化樹脂槽內，接著該控制裝置控制該雷射頭發出雷射光，並控制該雙軸掃描振鏡的該反射鏡改變角度，將雷射光往上反射通過該平場聚焦鏡後聚焦在該平台的底面進行雷射光的掃描，過程中該控制裝置驅動該機械手臂帶動該平台逐漸上升，將光固化樹脂層層硬化在該平台的底部列印出3D列印的工件。In the present invention, a photocurable resin is first injected into the photocurable resin tank, and the control device controls the platform to move into the photocurable resin tank, and then the control device controls the laser hair to emit laser light, and controls the double The mirror of the axial scanning galvanometer changes an angle, and the laser light is reflected upwardly through the flat field focusing mirror and then focused on the bottom surface of the platform for scanning the laser light. In the process, the control device drives the mechanical arm to drive the platform to gradually rise. The layer of the photocurable resin is hardened to print a 3D printed workpiece at the bottom of the platform.
本新型的功效在於，雷射光經由該反射鏡反射之後，會穿過該平場聚焦鏡再聚焦，利用該平場聚焦鏡能使雷射光聚焦至同一平面，能解決現有雷射動畫投影機球面鏡頭聚焦偏離焦平面的問題，使本新型的雷射掃描裝置投射至該平台底部的掃描雷射光在該平台的中間以及周圍都有一致的強度，使層層固化在該升降平台底部的樹脂的固化程度相同，有效提升列印工件的品質。The effect of the novel is that after the laser light is reflected by the mirror, it will be refocused through the flat field focusing mirror, and the flat field focusing mirror can focus the laser light to the same plane, which can solve the focus of the existing laser animation projector spherical lens. The problem of deviating from the focal plane causes the scanning laser light projected by the novel laser scanning device to the bottom of the platform to have uniform strength in the middle and around the platform, so that the layer is cured at the bottom of the lifting platform. The same, effectively improve the quality of the printed workpiece.
本新型進一步將該雷射頭射出的雷射光設為功率較強的波長405nm的藍紫色雷射光，配合該藍紫色雷射光在該反射鏡的表面形成一反射鍍膜，降低雷射光反射時的損耗，使得本新型該雷射掃描裝置掃描的雷射光具有較佳的強度，進一步提升樹脂硬化的程度與速度，提升3D列印的品質。The laser beam emitted from the laser head is further set as a blue-violet laser light with a relatively high power of 405 nm, and a blue-violet laser light is used to form a reflective coating on the surface of the mirror to reduce the loss when the laser light is reflected. The laser light scanned by the laser scanning device of the present invention has better strength, further improves the degree and speed of hardening of the resin, and improves the quality of the 3D printing.
為能詳細瞭解本新型的技術特徵及實用功效，並可依照說明書的內容來實施，進一步以如圖式所示的較佳實施例，詳細說明如下。In order to understand the technical features and practical effects of the present invention in detail, it can be implemented in accordance with the contents of the specification, and further described in detail with reference to the preferred embodiments shown in the drawings.
請參看圖1、圖2所示的本新型較佳實施例，本新型提供一種立體光固化成型3D列印機，包括一機體10、一安裝在該機體10底部的雷射掃描裝置20、一安裝在該機體10頂部的升降平台30，以及一安裝在該機體10的控制裝置40，其中：Referring to the preferred embodiment of the present invention shown in FIG. 1 and FIG. 2, the present invention provides a stereolithography 3D printing machine, comprising a body 10, a laser scanning device 20 mounted on the bottom of the body 10, and a A lifting platform 30 mounted on the top of the body 10, and a control device 40 mounted on the body 10, wherein:
該機體10設有一底座11，該底座11是矩形的鏤空支架，在該底座11內的底部結合一底板12，在該底座11頂部的中間固設一光固化樹脂槽13，該光固化樹脂槽13是透光的槽體，供光固化樹脂注入其中。The base 10 is provided with a base 11 which is a rectangular hollow bracket. The bottom of the base 11 is combined with a bottom plate 12, and a photocurable resin groove 13 is fixed in the middle of the top of the base 11. 13 is a light-transmissive tank into which a photocurable resin is injected.
該雷射掃描裝置20結合在該底座11內的該底板12上，該雷射掃描裝置20設有一雷射頭21、一雙軸掃描振鏡22，以及一平場聚焦鏡23，該雷射頭21是固設於該底座11內，該雙軸掃描振鏡22位於該雷射頭21旁，在該雙軸掃描振鏡22靠近該雷射頭21的一側設有一擴束鏡組221，在該雙軸掃描振鏡22內設有一受控制變化角度的反射鏡222，在該反射鏡222的表面形成一反射鍍膜223，該雷射頭21射出的雷射光是波長405nm的藍紫色雷射光，該雷射光穿過該擴束鏡組221後被該反射鏡222及該反射鍍膜223向上反射，該平場聚焦鏡23固設於該雙軸掃描振鏡22的頂端，被該反射鏡222向上反射的雷射光穿過該平場聚焦鏡23後聚焦在該光固化樹脂槽13內的同一平面位置。The laser scanning device 20 is coupled to the bottom plate 12 in the base 11. The laser scanning device 20 is provided with a laser head 21, a biaxial scanning galvanometer 22, and a flat field focusing mirror 23, the laser head 21 is fixed in the base 11, the biaxial scanning galvanometer 22 is located beside the laser head 21, and a beam expander lens group 221 is disposed on a side of the biaxial scanning galvanometer 22 near the laser head 21, A mirror 222 having a controlled angle of change is disposed in the biaxial scanning galvanometer 22, and a reflective coating 223 is formed on the surface of the mirror 222. The laser light emitted from the laser head 21 is blue-violet laser light having a wavelength of 405 nm. The laser beam is reflected by the mirror 222 and the reflective coating 223, and the flat field focusing mirror 23 is fixed to the top end of the biaxial scanning galvanometer 22, and the mirror 222 is upwardly The reflected laser light passes through the flat field focusing mirror 23 and is focused on the same planar position in the photocurable resin tank 13.
該升降平台30在該底座11頂部結合一機械手臂31，該機械手臂31是豎直設置的滾珠導輪桿機械手臂並位於該光固化樹脂槽13旁，該機械手臂31朝該光固化樹脂槽13上方延伸一懸吊臂32，在該懸吊臂32自由端的底部結合一平台33，該平台33是平板的形狀並且位於該光固化樹脂槽13的正上方，該機械手臂31可透過該懸吊臂32帶動該平台33由該光固化樹脂槽13內的位置朝上移動。The lifting platform 30 is coupled with a robot arm 31 at the top of the base 11 . The robot arm 31 is a vertically disposed ball guide rod robot arm and is located beside the photo-curing resin tank 13 . The robot arm 31 faces the photo-curing resin tank. A suspension arm 32 extends over the top of the free end of the suspension arm 32, and a platform 33 is formed. The platform 33 is in the shape of a flat plate and is located directly above the photo-curing resin tank 13, and the robot arm 31 can pass through the suspension. The boom 32 drives the platform 33 to move upward from the position inside the photo-curable resin tank 13.
該控制裝置40包括控制該機械手臂31的馬達驅動器以及控制該雷射掃描裝置20的雷射掃描控制卡，該控制裝置40設於該底座11內的該底板12上，該控制裝置40分別電連接該雷射頭21、該雙軸掃描振鏡22以及該機械手臂31，借此控制該雙軸掃描振鏡22的該反射鏡222的角度位置以及該平台33的升降動作。The control device 40 includes a motor driver for controlling the robot arm 31 and a laser scanning control card for controlling the laser scanning device 20. The control device 40 is disposed on the bottom plate 12 in the base 11, and the control device 40 is respectively electrically The laser head 21, the biaxial scanning galvanometer 22, and the robot arm 31 are connected, thereby controlling the angular position of the mirror 222 of the biaxial scanning galvanometer 22 and the lifting operation of the platform 33.
當本新型使用時，如圖1、圖3所示，是在該光固化樹脂槽13內注入光固化樹脂，該控制裝置40控制該平台33下降至該光固化樹脂槽13內，接著該控制裝置40控制該雷射頭21發出雷射光，同時依據3D列印工件的形狀，控制該雙軸掃描振鏡22的該反射鏡222改變角度，將雷射光往上反射通過該平場聚焦鏡23後聚焦在該平台33的底面，過程中該控制裝置40驅動該機械手臂31帶動該平台33逐漸上升，利用雷射光將光固化樹脂層層硬化在該平台33的底部，最終在該平台33的底部列印出所需要的工件。When the present invention is used, as shown in FIG. 1 and FIG. 3, a photocurable resin is injected into the photocurable resin tank 13, and the control device 40 controls the platform 33 to descend into the photocurable resin tank 13, and then the control is performed. The device 40 controls the laser head 21 to emit laser light, and according to the shape of the 3D printed workpiece, the mirror 222 of the dual-axis scanning galvanometer 22 is controlled to change the angle, and the laser light is reflected upwardly through the flat field focusing mirror 23. Focusing on the bottom surface of the platform 33, the control device 40 drives the robot arm 31 to drive the platform 33 to gradually rise, and the photocurable resin layer is hardened at the bottom of the platform 33 by laser light, and finally at the bottom of the platform 33. Print out the required workpieces.
上述3D列印的過程中，由於雷射光最後穿過該平場聚焦鏡23能使雷射光都聚焦在該光固化樹脂槽13內的同一平面位置，因此本新型雷射光掃描該平台33中間與周邊的強度相同，使固化在該平台33中間的光固化樹脂與固化在該平台33周圍的光固化樹脂的固化程度相同，能有效提升列印工件的品質。In the above 3D printing process, since the laser light finally passes through the flat field focusing mirror 23, the laser light can be focused on the same planar position in the photocurable resin tank 13, so the new laser light scans the middle and the periphery of the platform 33. The strength is the same, so that the photocurable resin solidified in the middle of the platform 33 is cured to the same extent as the photocurable resin solidified around the platform 33, and the quality of the printed workpiece can be effectively improved.
本新型進一步將該雷射頭21射出的雷射光是波長405nm的藍紫色雷射光，強度較紅色或綠色的雷射光強，並且配合該藍紫色雷射光在該雙軸掃描振鏡22的該反射鏡222的表面形成一反射鍍膜223，降低雷射光反射時的損耗，使得本新型該雷射掃描裝置20掃描的雷射光具有較佳的強度，增加樹脂層層光固化在該平台33底部的硬度與成型的速度，提昇本新型3D列印工件的品質。The laser light emitted by the laser head 21 is further a blue-violet laser light having a wavelength of 405 nm, which is stronger than the red or green laser light, and is matched with the reflection of the blue-violet laser light in the biaxial scanning galvanometer 22. The surface of the mirror 222 forms a reflective coating 223 to reduce the loss of the laser light, so that the laser light scanned by the laser scanning device 20 has better strength and increases the hardness of the resin layer at the bottom of the platform 33. With the speed of molding, the quality of the new 3D printing workpiece is improved.
以上所述僅為本新型的較佳實施例而已，並非用以限定本新型主張的權利範圍，凡其它未脫離本新型所揭示的精神所完成的等效改變或修飾，均應包括在本新型的申請專利範圍內。The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. All other equivalent changes or modifications which are not departing from the spirit of the present invention are included in the present invention. Within the scope of the patent application.
10‧‧‧機體
11‧‧‧底座
12‧‧‧底板
13‧‧‧光固化樹脂槽
20‧‧‧雷射掃描裝置
21‧‧‧雷射頭
22‧‧‧雙軸掃描振鏡
221‧‧‧擴束鏡組
222‧‧‧反射鏡
223‧‧‧反射鍍膜
23‧‧‧平場聚焦鏡
30‧‧‧升降平台
31‧‧‧機械手臂
32‧‧‧懸吊臂
33‧‧‧平台
40‧‧‧控制裝置10‧‧‧ body
11‧‧‧Base
12‧‧‧floor
13‧‧‧Light curing resin tank
20‧‧‧Laser scanning device
21‧‧‧Ray head
22‧‧‧Double-axis scanning galvanometer
221‧‧‧beam expander
222‧‧‧Mirror
223‧‧‧reflective coating
23‧‧‧ flat field focusing mirror
30‧‧‧ Lifting platform
31‧‧‧ Robotic arm
32‧‧‧ hanging arm
33‧‧‧ platform
40‧‧‧Control device
圖1是本新型較佳實施例的立體圖。 圖2是本新型較佳實施例的平面圖。 圖3是本新型較佳實施例3D列印的實施動作示意圖。1 is a perspective view of a preferred embodiment of the present invention. Figure 2 is a plan view of a preferred embodiment of the present invention. 3 is a schematic view showing the implementation of the printing of the preferred embodiment 3D of the present invention.
10‧‧‧機體 10‧‧‧ body
11‧‧‧底座 11‧‧‧Base
12‧‧‧底板 12‧‧‧floor
13‧‧‧光固化樹脂槽 13‧‧‧Light curing resin tank
20‧‧‧雷射掃描裝置 20‧‧‧Laser scanning device
30‧‧‧升降平台 30‧‧‧ Lifting platform
31‧‧‧機械手臂 31‧‧‧ Robotic arm
32‧‧‧懸吊臂 32‧‧‧ hanging arm
33‧‧‧平台 33‧‧‧ platform
40‧‧‧控制裝置 40‧‧‧Control device
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| TW (1) | TWM552425U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110722795A (en) * | 2019-11-21 | 2020-01-24 | 吉林大学 | One shot forming's multiaspect LCD light source 3D printing device |
-
2017
- 2017-08-16 TW TW106212087U patent/TWM552425U/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110722795A (en) * | 2019-11-21 | 2020-01-24 | 吉林大学 | One shot forming's multiaspect LCD light source 3D printing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4K | Annulment or lapse of a utility model due to non-payment of fees |