High-precision micro-nano structure photocuring 3D printer

Abstract

The invention discloses a high-precision micro-nano structure photocuring 3D printer, and belongs to the technical field of 3D printing, the high-precision micro-nano structure photocuring 3D printer comprises a printer shell and a forming platform, two groups of guide rails are fixedly mounted on the inner wall of the printer shell, and a resin groove is slidably mounted in the two groups of guide rails; the same insertion rod is slidably installed in the two sides of the printer shell, the two sets of guide rails and the two sides of the resin groove, the lens, the light source and the electronic level meter are arranged in the printer shell, tiny inclination of the platform can be rapidly and accurately captured, printing error accumulation caused by the fact that the platform is not horizontal is avoided, and the printing efficiency is improved. High precision in the initial stage of printing is ensured, the strict requirement of high-precision micro-nano structure printing for platform stability is met, the pollution of harmful gas to the environment is avoided through the efficient waste gas treatment mode, meanwhile, a relatively clean working environment is created for the interior of the printer, corrosion of waste gas to internal parts of the printer is reduced, and the service life of the printer is prolonged. The service life of equipment is prolonged.

Description

Technical Field

[0001] This invention relates to the field of 3D printing technology, and in particular to a high-precision micro-nano structure photopolymerization 3D printer. Background Technology

[0002] Photopolymerization 3D printing technology utilizes liquid photosensitive resin to undergo photopolymerization under ultraviolet light of specific wavelengths and intensities, solidifying and stacking it layer by layer to form a three-dimensional solid model. Photopolymerization 3D printers have broad application prospects in the printing and manufacturing of micro and nano structures.

[0003] On the one hand, the levelness of the forming platform plays a decisive role in printing accuracy. In traditional photopolymer 3D printers, the initial leveling of the forming platform often relies on manual operation, which is not only time-consuming and labor-intensive, but also difficult to guarantee in terms of calibration accuracy. This leads to problems such as dimensional deviations and uneven surfaces in the printed micro-nano structures, which seriously affect product quality and performance. In addition, harmful exhaust gases are released when the liquid photosensitive resin cures during the printing process. If these exhaust gases are not treated in a timely and effective manner, they will not only harm the health of the operators, but also pollute the working environment. Existing exhaust gas treatment devices either have poor treatment effects or are difficult to replace filters, which cannot meet the actual production needs. Therefore, we propose a high-precision micro-nano structure photopolymer 3D printer to solve this problem. Summary of the Invention

[0004] The purpose of this invention is to provide a high-precision micro / nano structure photopolymerization 3D printer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A high-precision micro / nano structure photopolymerization 3D printer includes: a printer housing and a forming platform. Two sets of guide rails are fixedly installed on the inner wall of the printer housing. Resin tanks are slidably installed inside the two sets of guide rails. The same insert rod is slidably installed inside both sides of the printer housing, inside the two sets of guide rails, and on both sides of the resin tank. A lens, a light source, and an electronic level are disposed inside the printer housing. The lens is positioned between the resin tank and the light source. A frame is fixedly installed inside the printer housing. A lead screw is rotatably installed inside the frame. A limit block is threaded to the outer side of the lead screw. A connecting plate is fixedly installed on one side of the limit block. Three sets of leveling components are disposed between the connecting plate and the forming platform. Each leveling component includes: a fixed frame, an embedded ball joint, and a ball joint fixing seat. The fixed frame has a precision worm gear and a screw mounted rotatably inside. A precision worm wheel is fixedly mounted on the outside of the screw. A threaded sleeve is fixedly mounted on the outside of the embedded ball head. A guide sleeve is fixedly mounted on the top of the fixed frame. The embedded ball head is rotatably mounted in a ball head fixing seat. An exhaust box is fixedly mounted on the top of the printer housing. A fan is provided on one side of the exhaust box. An air collection hood is connected to the bottom of the exhaust box. A filter is movably inserted into one end of the exhaust box. Two sets of movable frames are slidably mounted inside the exhaust box. A first insert block is fixedly mounted on one side of each set of movable frames. The first insert block is movably inserted into the outside of one end of the filter. Movable blocks are slidably mounted inside each set of movable frames. A second insert block and a pull rod are fixedly mounted at both ends of each set of movable blocks.

[0006] Preferably, the gas collection hood is located on the top of the printer housing; a pull handle is fixedly installed at one end of the filter; a return spring is fixedly installed on the other side of each of the two sets of movable frames; two sets of insert blocks are movably inserted into one side of the exhaust box; a handle is fixedly installed at one end of each of the two sets of pull rods; a return spring is sleeved on the outer side of each of the two sets of pull rods; a pull ring is fixedly installed at one end of each of the two sets of insert rods; a limit rod is fixedly installed at one end of each of the two sets of pull rings; the limit rods are slidably installed on both sides of the printer housing; a return spring is sleeved on the outer side of each of the two sets of limit rods; the threaded sleeve is slidably installed on the inner wall of the guide sleeve; four sets of universal wheels are provided at the bottom of the printer housing; a closed door is slidably installed on one side of the printer housing; a viewing window is opened on one side of the closed door; and a controller and multiple interfaces are provided on one side of the printer housing.

[0007] Preferably, the three sets of fixing frames are fixedly installed on the top of the forming platform, and the three sets of ball head fixing seats are fixedly installed on the bottom of the connecting plate.

[0008] Preferably, a linear motor is fixedly installed on the top of the frame, and one end of the lead screw is fixedly installed on the output end of the linear motor.

[0009] Preferably, the three sets of leveling components are arranged in a triangle, and the three sets of leveling components further include: an adjusting motor, and one end of the three sets of precision worm gears is fixedly installed on the output end of the corresponding adjusting motor.

[0010] Preferably, the three sets of precision worm gears mesh with the corresponding precision worms, the three sets of precision worm gears are disposed inside the corresponding fixed frames, and the threaded sleeve is threadedly connected to the outside of the screw.

[0011] Preferably, the air inlet of the fan is connected to the filter, and two sets of slots are provided on the outer side of one end of the filter, with the two sets of plugs being movably inserted into the corresponding slots.

[0012] Preferably, the exhaust box has two sets of sliding grooves on one side, the two sets of movable frames are slidably installed in the corresponding sliding grooves, and one end of each of the two sets of return springs is fixedly installed on one side of the corresponding sliding groove.

[0013] Preferably, the two ends of the two sets of reset springs are respectively fixedly installed on one side of the corresponding moving block and on one side of the inner wall of the corresponding moving frame.

[0014] Preferably, the printer housing has two sets of limiting grooves inside, the two sets of limiting rods are slidably installed in the corresponding limiting grooves, and one end of the two sets of reset springs is fixedly installed on one side of the corresponding limiting groove.

[0015] In this invention, the high-precision micro / nano structure photopolymerization 3D printer uses a pull ring to move the insertion rod and the limiting rod relative to each other, allowing the insertion rod to enter the printer housing. The return spring contracts, and the resin tank slides along the guide rail into the printer housing. Then, the pull ring is released, and under the elastic force of the return spring, the insertion rod inserts into the corresponding holes in the printer housing, guide rail, and resin tank, fixing the resin tank and ensuring its stable position during printing. A linear motor, lead screw, limiting block, and connecting plate work together to move the forming platform vertically to a suitable position. Light is emitted from a light source, focused and adjusted by a lens, and evenly irradiated onto the liquid photosensitive resin in the resin tank. The forming platform descends to contact the liquid photosensitive resin, and the light source illuminates the first layer of the printed model according to the design pattern, causing the liquid photosensitive resin on the surface of the forming platform to solidify. This high-precision vertical motion control minimizes the positioning error of the forming platform, ensuring the consistency of each layer of resin during solidification, thereby guaranteeing the dimensional accuracy of the printed micro / nano structure in the vertical dimension. In this invention, the high-precision micro-nano structure photopolymerization 3D printer is equipped with casters at the bottom of the printer to facilitate the movement of the equipment within the work area, meeting different usage needs. Operators can observe the printing process inside the printer through a viewing window on the closed door. The printer can be operated and controlled, and data can be transmitted through the controller and multiple interfaces. This allows the equipment to move freely within the work area, easily adapting to different work environment requirements and facilitating constant monitoring of the printing process by staff. This invention features a rationally designed structure. An electronic level monitor detects the horizontal position of the forming platform and feeds the data back to the controller. The controller then controls a corresponding adjusting motor to rotate a precision worm gear. The worm gear meshes with a precision worm wheel, which in turn drives the screw to rotate. As the screw rotates, a threaded sleeve connected to the screw threadedly moves up and down along the screw along the inner wall of the guide sleeve. The threaded sleeve drives an embedded ball head to rotate within its fixed seat, thus adjusting the height of the forming platform at different positions until it is level. After the forming platform is leveled, during printing, a fan draws negative pressure into the filter, drawing the exhaust gas generated during printing into the exhaust box through the exhaust box and gas collection hood. As the exhaust gas passes through the filter, harmful substances and particles are filtered out, and the purified gas is discharged by the fan. When the filter needs to be replaced, pulling the lever outward moves the moving block and insert block two outward, causing the reset spring two to retract. At this time, the moving frame is unlocked, allowing the printing process to proceed smoothly. Pulling the lever causes the moving block and frame to move relative to each other, allowing the frame to move within the slide groove. The first return spring contracts, releasing the filter from its lock. Pulling the handle then removes the filter, which is then pushed into the exhaust box. Releasing the lever allows the filter to be re-secured without external force due to the elastic force of the first and second return springs. This double locking provides excellent stability for the filter, quickly and accurately detecting even slight platform tilts, preventing the accumulation of printing errors caused by an uneven platform, and ensuring high precision in the initial printing stage. This automated adjustment process requires no manual intervention, improving leveling efficiency and ensuring the forming platform is level during operation, meeting the stringent stability requirements of high-precision micro / nano structure printing. This efficient exhaust gas treatment method avoids environmental pollution from harmful gases and creates a relatively clean working environment inside the printer, reducing corrosion of internal components and extending the equipment's lifespan. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the high-precision micro-nano structure photopolymerization 3D printer proposed in this invention. Figure 2 This is a cross-sectional schematic diagram of the high-precision micro-nano structure photopolymerization 3D printer proposed in this invention. Figure 3 This is a side cross-sectional view of the high-precision micro-nano structure photopolymerization 3D printer proposed in this invention. Figure 4 for Figure 2 A magnified view of part A in the middle; Figure 5 for Figure 2 A magnified view of part B in the middle section; Figure 6 for Figure 2 A magnified view of part C in the middle; Figure 7 This is a partial cross-sectional view of the high-precision micro-nano structure photopolymerization 3D printer proposed in this invention. Figure 8 This is a three-dimensional structural diagram of the leveling component of the high-precision micro-nano structure photopolymerization 3D printer proposed in this invention.

[0017] In the diagram: 1. Printer housing; 2. Enclosed door; 3. Viewing window; 4. Controller; 5. Casters; 6. Exhaust box; 7. Filter; 8. Pull handle; 9. Leveling assembly; 901. Fixing frame; 902. Adjusting motor; 903. Precision worm gear; 904. Screw; 905. Precision worm wheel; 906. Threaded sleeve; 907. Embedded ball head; 908. Ball head fixing seat; 909. Guide sleeve; 10. Connecting plate; 11. Forming platform ; 12. Frame; 13. Linear motor; 14. Lead screw; 15. Limit block; 16. Resin tank; 17. Guide rail; 18. Lens; 19. Light source; 20. Fan; 21. Air collection hood; 22. Moving frame; 23. Return spring one; 24. Insert block one; 25. Moving block; 26. Insert block two; 27. Pull rod; 28. Return spring two; 29. ​​Insert rod; 30. Pull ring; 31. Limit rod; 32. Return spring three; 33. Electronic level. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] Reference Figure 1-8A high-precision micro / nano structure photopolymerization 3D printer includes: a printer housing 1 and a forming platform 11. Two sets of guide rails 17 are fixedly installed on the inner wall of the printer housing 1. A resin tank 16 is slidably installed inside the two sets of guide rails 17. The same insert rod 29 is slidably installed inside both sides of the printer housing 1, inside the two sets of guide rails 17, and on both sides of the resin tank 16. A lens 18, a light source 19, and an electronic level 33 are arranged inside the printer housing 1. The lens 18 is located between the resin tank 16 and the light source 19. A frame 12 is fixedly installed inside the printer housing 1. A lead screw 14 is rotatably installed inside the frame 12. A limit block 15 is threadedly connected to the outer side of the lead screw 14. A connecting plate 10 is fixedly installed on one side of the limit block 15. Three sets of leveling components 9 are arranged between the connecting plate 10 and the forming platform 11. The leveling components 9 include: a fixed frame 901, an embedded ball head 907, and a ball head fixing seat 908. The fixed frame 901 has a precision worm gear 903 and a screw 904 rotatably mounted inside. A precision worm wheel 905 is fixedly mounted on the outside of the screw 904. A threaded sleeve 906 is fixedly mounted on the outside of the embedded ball head 907. A guide sleeve 909 is fixedly mounted on the top of the fixed frame 901. The embedded ball head 907 is rotatably mounted in the ball head fixing seat 908. An exhaust box 6 is fixedly mounted on the top of the printer housing 1. A fan 20 is provided on one side of the exhaust box 6. An air collection hood 21 is connected to the bottom of the exhaust box 6. A filter 7 is movably inserted into one end of the exhaust box 6. Two sets of movable frames 22 are slidably mounted inside the exhaust box 6. A first insertion block 24 is fixedly mounted on one side of each of the two sets of movable frames 22. The two sets of first insertion blocks 24 are movably inserted into the outside of one end of the filter 7. A movable block 25 is slidably mounted inside each of the two sets of movable frames 22. A second insertion block 26 and a pull rod 27 are fixedly mounted at both ends of each of the two sets of movable blocks 25.

[0020] In this embodiment, the gas collection hood 21 is set on the top of the printer housing 1, a pull handle 8 is fixedly installed on one end of the filter 7, a return spring 23 is fixedly installed on the other side of each of the two sets of moving frames 22, two sets of insert blocks 26 are movably inserted into one side of the exhaust box 6, a handle is fixedly installed on one end of each of the two sets of pull rods 27, a return spring 28 is sleeved on the outside of each of the two sets of pull rods 27, a pull ring 30 is fixedly installed on one end of each of the two sets of insert rods 29, a limit rod 31 is fixedly installed on one end of each of the two sets of pull rings 30, the two sets of limit rods 31 are slidably installed on both sides of the printer housing 1, a return spring 32 is sleeved on the outside of each of the two sets of limit rods 31, a threaded sleeve 906 is slidably installed on the inner wall of the guide sleeve 909, four sets of universal wheels 5 are provided at the bottom of the printer housing 1, a closed door 2 is slidably installed on one side of the printer housing 1, a viewing window 3 is opened on one side of the closed door 2, and a controller 4 and multiple interfaces are provided on one side of the printer housing 1, reducing the difficulty of operation and improving maintenance efficiency.

[0021] In this embodiment, three sets of fixing frames 901 are fixedly installed on the top of the forming platform 11, and three sets of ball head fixing seats 908 are fixedly installed on the bottom of the connecting plate 10 to ensure the stability of the forming platform 11 and avoid deformation caused by uneven force affecting printing accuracy.

[0022] In this embodiment, a linear motor 13 is fixedly installed on the top of the frame 12, and one end of the lead screw 14 is fixedly installed on the output end of the linear motor 13. The linear motor 13 can reduce the error caused by the gap and wear between the transmission components.

[0023] In this embodiment, the three sets of leveling components 9 are arranged in a triangle. The three sets of leveling components 9 also include: an adjustment motor 902, and one end of each of the three sets of precision worm gears 903 is fixedly installed on the output end of the corresponding adjustment motor 902. This layout can make the forming platform 11 more evenly stressed in all directions and the leveling effect more stable.

[0024] In this embodiment, three sets of precision worm gears 905 mesh with the corresponding precision worm 903. The three sets of precision worm gears 905 are set inside the corresponding fixed frame 901. The threaded sleeve 906 is threadedly connected to the outside of the screw 904, which can prevent the screw 904 and the threaded sleeve 906 from rotating on their own due to external forces and other factors, and ensure that the horizontal state of the forming platform 11 remains stable after adjustment.

[0025] In this embodiment, the air inlet end of the fan 20 is connected to the filter 7. Two sets of slots are provided on the outer side of one end of the filter 7. The two sets of plugs 24 are movably inserted into the corresponding slots, which facilitates disassembly and replacement and ensures the continuous and effective operation of the exhaust gas treatment system.

[0026] In this embodiment, two sets of sliding grooves are provided on one side of the exhaust box 6, and two sets of moving frames 22 are slidably installed in the corresponding sliding grooves. One end of each of the two sets of return springs 23 is fixedly installed on one side of the corresponding sliding groove, so that the moving frame 22 remains stable during movement.

[0027] In this embodiment, the two ends of the two sets of reset springs 28 are respectively fixedly installed on one side of the corresponding moving block 25 and the inner wall of one side of the corresponding moving frame 22 to ensure the stability of the structure and the convenience of the next operation, and to prevent the pull rod 27 and the moving block 25 from shaking randomly and affecting the normal operation of the equipment.

[0028] In this embodiment, two sets of limiting grooves are provided inside the two sets of printer housing 1, and two sets of limiting rods 31 are slidably installed in the corresponding limiting grooves. One end of each set of reset springs 32 is fixedly installed on one side of the corresponding limiting groove. The limiting rods 31 can prevent the insert rod 29 from moving laterally or rotating, ensuring that the resin tank 16 will not be displaced due to vibration or other factors during the printing process.

[0029] In this embodiment, before printing begins, the operator can start the printer via the controller 4. At this time, the forming platform 11 is at its highest point. The electronic level 33 detects the level of the forming platform 11 and feeds the data back to the controller 4. If the forming platform 11 is not level, the controller 4 controls the adjustment motor 902 in the three sets of leveling components 9 to start. The adjustment motor 902 drives the precision worm gear 903 to rotate. The precision worm gear 903 meshes with the precision worm wheel 905, which in turn drives the precision worm wheel 905 to drive the screw 904 to rotate. During rotation, the threaded sleeve 906, which is threadedly connected to the screw 904, moves up and down along the screw 904 on the inner wall of the guide sleeve 909. The threaded sleeve 906 drives the embedded ball head 907 to rotate within the ball head fixing seat 908, thereby adjusting the height of the forming platform 11 at different positions until the forming platform 11 reaches a horizontal position. After the forming platform 11 is leveled, the linear motor 13 is started to drive the lead screw 14 to rotate. The lead screw 14 drives the connecting plate 10 to move through the threaded limit block 15, thereby moving the forming platform 11 to a suitable position in the vertical direction. Liquid photosensitive resin is added to the resin tank 16. Pulling the pull rings 30 on both sides causes the insertion rod 29 and the limiting rod 31 to move relative to each other, so that the insertion rod 29 enters the printer housing 1. The return spring 32 contracts, and the resin tank 16 slides into the printer housing 1 along the guide rail 17. Then the pull rings 30 are released. Under the elastic force of the return spring 32, the insertion rod 29 is inserted into the corresponding holes of the printer housing 1, the guide rail 17 and the resin tank 16, fixing the resin tank 16 and ensuring its stable position during printing. Light source 19 emits light, which is focused and adjusted by lens 18, and then evenly illuminates the liquid photosensitive resin in resin tank 16. The molding platform 11 descends to contact the liquid photosensitive resin, and light source 19 illuminates the liquid photosensitive resin according to the first layer design pattern of the printed model, causing the liquid photosensitive resin on the surface of molding platform 11 to solidify until the printing of the entire model is completed. During the printing process, the blower 20 is activated to create a negative pressure inside the filter 7. The exhaust gas generated during printing is then drawn into the exhaust box 6 through the exhaust box 6 and the gas collection hood 21. As the exhaust gas passes through the filter 7, the filter 7 filters out harmful substances and particles in the exhaust gas. The purified gas is then discharged through the blower 20. When the filter 7 needs to be replaced, the pull rod 27 is pulled outward to move the moving block 25 and the second insertion block 26 outward. The second return spring 28 retracts, and the moving frame 22 is unlocked. The pull rod 27 is then pulled outward to move the moving block 25 and the frame 12 relative to each other, causing the frame 12 to move relative to each other in the slide groove. The first return spring 23 retracts, thereby releasing the lock on the filter 7. The filter 7 can then be removed by pulling the handle 8. The filter 7 is pushed into the exhaust box 6, and the pull rod 27 is released. Under the elastic force of the first return spring 23 and the second return spring 28, the filter 7 can be re-fixed without external force. The double locking provides good stability for the filter 7. The universal wheels 5 at the bottom of the printer facilitate the movement of the equipment within the work area to meet different usage needs. Operators can observe the printing status inside the printer through the viewing window 3 on the closed door 2. The controller 4 and multiple interfaces enable the operation and control of the printer as well as data transmission.

[0030] The high-precision micro / nano structure photopolymerization 3D printer provided by this invention has been described in detail above. Specific embodiments have been used to illustrate the principles and implementation methods of this invention. The descriptions of these embodiments are only intended to aid in understanding the method and core ideas of this invention. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of this invention.

Claims

1. High-precision micro / nano structure photopolymerization 3D printer, including: The printer housing (1) and the molding platform (11) are characterized in that two sets of guide rails (17) are fixedly installed on the inner wall of the printer housing (1), and resin tanks (16) are slidably installed inside the two sets of guide rails (17). The printer housing (1) contains a lens (18), a light source (19), and an electronic level (33), with the lens (18) positioned between the resin tank (16) and the light source (19). A frame (12) is fixedly installed inside the printer housing (1). The internal rotating part is equipped with a lead screw (14), and the outer side of the lead screw (14) is threadedly connected to a limit block (15). A connecting plate (10) is fixedly installed on one side of the limit block (15). Three sets of leveling components (9) are provided between the connecting plate (10) and the forming platform (11). The leveling components (9) include: a fixed frame (901), an embedded ball head (907) and a ball head fixing seat (908). The fixed frame (901) is internally rotatably equipped with a precision worm (903) and a screw (904). A precision worm wheel (905) is fixedly installed on the outer side of the screw (904). A threaded sleeve (906) is fixedly installed on the outer side of the embedded ball head (907). A guide sleeve (909) is fixedly installed on the top of the fixed frame (901). The embedded ball head (907) is rotatably installed in the ball head fixing seat (908). An exhaust box (6) is fixedly installed on the top of the printer housing (1). A fan (20) is provided on one side of the exhaust box (6). An air collection hood (21) is connected to the bottom of the exhaust box (6). A filter (7) is movably inserted into one end of the exhaust box (6). Two sets of movable frames (22) are slidably installed inside the exhaust box (6). A first insert block (24) is fixedly installed on one side of each of the two sets of movable frames (22). The first insert block (24) is movably inserted into the outer side of one end of the filter (7). A movable block (25) is slidably installed inside each of the two sets of movable frames (22). A second insert block (26) and a pull rod (27) are fixedly installed at both ends of each of the two sets of movable blocks (25).

2. The high-precision micro / nano structure photopolymerization 3D printer according to claim 1, characterized in that, The gas collection hood (21) is set on the top of the printer housing (1). A handle (8) is fixedly installed on one end of the filter (7). A return spring (23) is fixedly installed on the other side of each of the two sets of moving frames (22). Two sets of insert blocks (26) are movably inserted into one side of the exhaust box (6). A handle is fixedly installed on one end of each of the two sets of pull rods (27). A return spring (28) is sleeved on the outside of each of the two sets of pull rods (27). A pull ring (30) is fixedly installed on one end of each of the two sets of insert rods (29). A pull ring (30) is fixedly installed on one end of each of the two sets of pull rings (30). There are limit rods (31), and two sets of limit rods (31) are slidably installed on both sides of the printer housing (1). The outer sides of the two sets of limit rods (31) are fitted with reset springs (32). The threaded sleeve (906) is slidably installed on the inner wall of the guide sleeve (909). The bottom of the printer housing (1) is provided with four sets of universal wheels (5). A closed door (2) is slidably installed on one side of the printer housing (1). A viewing window (3) is opened on one side of the closed door (2). A controller (4) and multiple interfaces are provided on one side of the printer housing (1).

3. The high-precision micro / nano structure photopolymerization 3D printer according to claim 1, characterized in that, The three sets of fixed frames (901) are fixedly installed on the top of the forming platform (11), and the three sets of ball head fixing seats (908) are fixedly installed on the bottom of the connecting plate (10).

4. The high-precision micro / nano structure photopolymerization 3D printer according to claim 1, characterized in that, A linear motor (13) is fixedly installed on the top of the frame (12), and one end of the lead screw (14) is fixedly installed on the output end of the linear motor (13).

5. The high-precision micro / nano structure photopolymerization 3D printer according to claim 1, characterized in that, The three sets of leveling components (9) are arranged in a triangle. The three sets of leveling components (9) also include an adjusting motor (902). One end of the three sets of precision worm gears (903) is fixedly installed on the output end of the corresponding adjusting motor (902).

6. The high-precision micro / nano structure photopolymerization 3D printer according to claim 1, characterized in that, The three sets of precision worm gears (905) mesh with the corresponding precision worm (903), the three sets of precision worm gears (905) are set inside the corresponding fixed frame (901), and the threaded sleeve (906) is threaded to the outside of the screw (904).

7. The high-precision micro / nano structure photopolymerization 3D printer according to claim 1, characterized in that, The air inlet of the fan (20) is connected to the filter (7). Two sets of slots are provided on the outer side of one end of the filter (7), and the two sets of plugs (24) are movably inserted into the corresponding slots.

8. The high-precision micro / nano structure photopolymerization 3D printer according to claim 2, characterized in that, Two sets of sliding grooves are provided on one side of the exhaust box (6), and the two sets of moving frames (22) are slidably installed in the corresponding sliding grooves. One end of the two sets of reset springs (23) is fixedly installed on one side of the corresponding sliding groove.

9. The high-precision micro / nano structure photopolymerization 3D printer according to claim 2, characterized in that, The two ends of the two sets of reset springs (28) are respectively fixedly installed on one side of the corresponding moving block (25) and one side of the inner wall of the corresponding moving frame (22).

10. The high-precision micro / nano structure photopolymerization 3D printer according to claim 2, characterized in that, The printer housing (1) has two sets of limiting grooves inside, and the two sets of limiting rods (31) are slidably installed in the corresponding limiting grooves. One end of the two sets of reset springs (32) is fixedly installed on one side of the corresponding limiting groove.

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