Adaptive damping 3D printing platform

Abstract

The present application relates to the technical field of 3D printing, and particularly relates to a self-adaptive shock-absorbing 3D printing platform. The present application comprises a bottom plate, slide rail frames, sliding grooves, adjusting frames, support rods, secondary plates and fine adjustment rods; the slide rail frames are arc-shaped frames, two slide rail frames are cross-stacked, the sliding grooves are arranged on each slide rail frame, four adjusting frames are arranged, each adjusting frame is fixedly connected with each extension end of the two slide rail frames, the support rod is arranged at the cross point of the sliding grooves of the two slide rail frames, the support rod is slidingly connected with the two slide rail frames, the secondary plate is fixedly connected with the top end of the support rod, and at least four fine adjustment rods are distributed at the four corners of the secondary plate; when the inclination is detected, the driving fan-shaped adaptive tooth piece slides along the arc-shaped sliding rail, thereby driving the slide rail frame to independently deflect around the cross point; the support rod arranged at the cross point of the sliding grooves of the two slide rail frames slides in the groove, thereby driving the secondary plate to quickly and coarsely adjust in a large range, so that the printing table is roughly returned to the horizontal state.

Description

Technical Field

[0001] This invention relates to the field of 3D printing technology, and in particular to an adaptive vibration damping 3D printing platform. Background Technology

[0002] The 3D printing platform is the basic work surface in a 3D printer used to support the printed model. Its main function is to provide an absolutely level reference plane for molding processes such as fused deposition modeling or photopolymerization during the printing process, ensuring that the first layer of material can be evenly attached and firmly bonded. At the same time, it stably supports the model throughout the entire printing cycle, preventing the model from warping, layer misalignment, or even printing failure due to platform tilting, vibration, or thermal deformation. It is one of the core components that determines printing accuracy and success rate.

[0003] However, existing equipment often encounters the following problems during use:

[0004] (1) In actual use scenarios of 3D printing equipment, whether it is a desktop printer or an industrial-grade device, the installation level of its base plate or overall frame is often difficult to guarantee. For example, if the printer is placed on an uneven table, the base undergoes slight deformation after transportation, or there are tolerances in the processing and assembly of the equipment itself, the printing platform will be significantly tilted relative to the direction of gravity or the Z-axis movement direction of the printer. This tilt often leads to serious problems such as failure of the first layer attachment, model warping, or even collision between the print head and the platform.

[0005] (2) Vibration sources are everywhere during 3D printing: rapid acceleration and deceleration of the print head in the X / Y axis direction, resonance of stepper motors or servo motors, periodic meshing impact of gears in the extrusion mechanism, and even vibrations from the external environment (such as tabletop tapping, fan operation, etc.) are all transmitted to the printing platform. Traditional printing platforms are usually fixed to the base by rigid connections (such as metal pillars or direct screw connections), or only a compression spring is added at the leveling screw to provide preload. Although this spring can absorb some low-frequency vibrations, it is essentially a linear elastic element and lacks the ability to dampen and dissipate high-frequency vibrations and random impacts; worse, the spring itself will introduce additional resonant frequencies, which may amplify the vibration under certain conditions. Long-term exposure to vibration will lead to obvious printing layer textures, "vibration marks" on the surface, sagging of overhanging parts, and even cracking of the model. Summary of the Invention

[0006] The main objective of this invention is to provide an adaptive vibration damping 3D printing platform, which solves at least one of the aforementioned problems to a certain extent.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] An adaptive vibration damping 3D printing platform, comprising:

[0009] Base plate;

[0010] The slide rail frame is an arc-shaped frame, and two slide rail frames are provided, which are stacked crosswise.

[0011] A sliding groove is provided on each of the slide rail frames;

[0012] An adjustment frame is provided, and four adjustment frames are provided, each of which is fixedly connected to the extension ends of two slide rail frames respectively;

[0013] A support rod passes through the intersection of the slide grooves of the two slide rail frames, and the support rod is slidably connected to the two slide rail frames;

[0014] A secondary plate, which is fixedly connected to the top end of the support rod;

[0015] Fine-tuning levers, at least four of which are distributed at the four corners of the secondary plate;

[0016] A printing table, which is placed on each of the fine-tuning levers.

[0017] include:

[0018] The number of inner slides corresponds to the number of fine-tuning rods, and each inner slide is provided on the secondary plate;

[0019] The number of compression bolts corresponds to the number of fine-tuning rods, and the other end of each inner slide is threadedly connected to the compression bolt.

[0020] A beveled bolt notch is formed at the bottom end of the extrusion bolt;

[0021] A displacement force-applying rod, wherein the displacement force-applying rod is built into the transverse section of the inner slide rail;

[0022] A lifting notch is provided at the bottom end of the fine-tuning rod;

[0023] The force-applying cut is located at both ends of the displacement force-applying rod, and the two ends of the force-applying cut are in sliding contact with the bolt oblique cut and the lifting cut, respectively.

[0024] The adjustment frame includes:

[0025] The fixing frame is disposed on the base plate;

[0026] The sliding rail is the arc-shaped rail and is disposed on one side of the fixed frame;

[0027] An adaptive gear is provided, one side of which is slidably connected to the sliding rail.

[0028] Also includes:

[0029] The threaded rod is provided in two forms, and the two threaded rods are correspondingly provided to two adjusting frames that are not on the same straight line. Each threaded rod meshes with the corresponding adaptive gear.

[0030] The number of drive motors corresponds to the number of threaded rods, and the output end of each drive motor is connected to one end of the corresponding threaded rod.

[0031] One side of the adapting tooth is fixedly connected to the extension end of the corresponding slide rail frame.

[0032] Each of the threaded rods is transversely inserted through the corresponding fixing frame, and the threaded rod is located below the corresponding adapting tooth.

[0033] Each of the inner slides has a built-in fine-tuning rod at one end.

[0034] The meshing teeth of the adaptable gear are distributed in a fan shape.

[0035] The inner slide is U-shaped.

[0036] Compared with the prior art, the beneficial effects of the present invention are:

[0037] (1) The present invention is designed with two overlapping arc-shaped slide rail frames, four adjustment frames, two drive motors and threaded rods. When tilting is detected, the drive motor drives the threaded rod to rotate, which drives the fan-shaped adapting tooth to slide along the arc-shaped slide rail. Since the adapting tooth is fixedly connected to the extension end of the slide rail frame, it drives the slide rail frame to deflect independently around the intersection point. The support rod passing through the intersection point of the two slide rail grooves slides in the groove, which drives the secondary plate to quickly perform a large-range coarse adjustment, so that the printing table returns to a roughly horizontal position, effectively avoiding problems such as first layer attachment failure, model edge warping or print head collision.

[0038] (2) To address the issue of traditional printing platforms being unable to handle vibration, this design utilizes a sliding connection between the support rod and the slideway, a floating fit between the fine-tuning rod and the inner slideway, and inclined sliding contact between the bolt bevels, the displacement force-applying rod force-applying cuts, and the fine-tuning rod lifting cuts to form a multi-layered series of friction damping chains. When vibration is transmitted, each sliding interface allows for micron-level relative sliding, converting impact energy into frictional dissipation. Simultaneously, four independent fine-tuning rods provide multi-point floating support, avoiding resonance coupling. Compared to traditional rigid connections or simple springs, this design effectively suppresses high-frequency vibrations and random impacts, eliminating adverse consequences such as layering, vibration marks, and model cracking. Attached Figure Description

[0039] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the detailed embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0040] Figure 1 This is a schematic diagram of the overall shape of the invention.

[0041] Figure 2 This is a schematic diagram of the slide rail structure of the present invention.

[0042] Figure 3 To adjust the frame structure diagram.

[0043] Figure 4 This is a structural diagram of the fine-tuning rod of the present invention.

[0044] Figure 5 This is a schematic diagram of the displacement force-applying rod structure of the present invention.

[0045] The following are the labels in the diagram: 1. Base plate; 2. Slide rail frame; 3. Slide groove; 4. Adjustment frame; 5. Support rod; 6. Secondary plate; 7. Fine adjustment rod; 8. Printing table; 9. Inner slide rail; 10. Extrusion bolt; 11. Bolt bevel; 12. Displacement force rod; 13. Lifting cut; 14. Force application cut; 41. Fixing frame; 42. Slide rail; 43. Adaptive gear; 15. Threaded rod; 16. Drive motor. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0048] like Figure 1-5 As shown, the present invention provides an adaptive vibration damping 3D printing platform, which includes a base plate 1, a slide rail frame 2, a slide groove 3, an adjustment frame 4, a support rod 5, a secondary plate 6, and a fine adjustment rod 7.

[0049] The base plate 1 provides a stable installation foundation for the entire platform and withstands the mechanical vibrations and gravitational loads generated during printing. The slide rail 2 is an arc-shaped frame; its arc-shaped trajectory enables continuous deflection of spatial angles, making the leveling motion smoother. Two slide rails 2 are provided, stacked crosswise; this crosswise arrangement creates two independent rotational degrees of freedom, allowing for two-dimensional tilt adjustment of the platform. Slide grooves 3 are provided on each slide rail 2, providing a guide path for the support rods 5, enabling them to slide along a predetermined trajectory when the slide rail 2 deflects. Four adjustment frames 4 are provided, each fixedly connected to an extension end of one of the two slide rails 2; each drive one of the four extension ends of the two slide rails 2, thereby independently controlling the spatial angle of each slide rail 2.

[0050] In this invention, the support rod 5 passes through the intersection of the grooves 3 of the two slide rail frames 2, and the support rod 5 is slidably connected to the two slide rail frames 2; the movement of the two slide rail frames 2 is combined, and the tilt adjustment is transmitted to the upper secondary plate 6, which is fixedly connected to the top of the support rod 5; as an intermediate bearing plate, it transmits the tilting movement of the support rod 5 and installs a fine-tuning mechanism, with at least four fine-tuning rods 7 distributed at the four corners of the secondary plate 6; independent height fine-tuning is provided at the four corners of the secondary plate 6 to achieve precise positioning of the printing table 8, which is placed on each fine-tuning rod 7. As the final printing working surface, a high-precision horizontal reference is obtained through the support of the lower fine-tuning rods 7. The inner slide 9 is U-shaped, converting the vertical movement of the extrusion bolt 10 into the horizontal movement of the displacement force rod 12, while providing lifting and lowering guidance for the fine-tuning rods 7. The number of inner slides 9 corresponds to the number of fine-tuning rods 7, and each inner slide 9 is opened on the secondary plate 6; so that each fine-tuning rod 7 has an independent adjustment channel, avoiding mutual interference during adjustment. Each inner slide 9 has a built-in fine adjustment rod 7 at one end; the fine adjustment rod 7 is confined within the U-shaped groove to ensure that it can only move in the vertical direction.

[0051] In this invention, the number of compression bolts 10 corresponds to the number of fine-tuning rods 7, and the other end of each inner slide 9 is threadedly connected to the compression bolt 10. The lateral stroke of the displacement force rod 12 is controlled by the engagement depth, thereby precisely controlling the lifting amount of the fine-tuning rod 7. The bolt bevel 11 is opened at the bottom end of the compression bolt 10. The downward linear motion of the compression bolt 10 is converted into a lateral thrust on the displacement force rod 12, which is built into the lateral section of the inner slide 9. The compression force is transmitted from the bolt bevel 11 to the bottom end of the fine-tuning rod 7, realizing the direction of force. The lifting cut 13 is opened at the bottom end of the fine-tuning rod 7. The lateral thrust from the displacement force rod 12 is received and converted into an upward lifting motion of the fine-tuning rod 7.

[0052] In this invention, the force-applying notch 14 is located at both ends of the displacement force-applying rod 12, and the two ends of the force-applying notch 14 are in sliding contact with the bolt oblique notch 11 and the lifting notch 13, respectively. This ensures that there is no relative separation during force transmission, while allowing for a certain degree of angle self-adaptation, making the transmission more reliable.

[0053] In this invention, the adjusting frame 4 includes a fixed frame 41 mounted on a base plate 1; a rigid mounting base for the sliding rail 42 and the adapting gear 43 to ensure stability during adjustment; the sliding rail 42 is an arc-shaped rail and is located on one side of the fixed frame 41; an arc-shaped guide is provided for the adapting gear 43, allowing the gear to swing around a fixed center; one side of the adapting gear 43 is slidably connected to the sliding rail 42; the rotational motion of the threaded rod 15 is converted into swinging along the arc-shaped rail, thereby driving the slide rail frame 2 to deflect. The meshing teeth of the adapting gear 43 are distributed in a fan shape; this ensures that the adapting gear 43 maintains correct meshing with the threaded rod 15 during swinging, preventing tooth disengagement. One side of the adapting gear 43 is fixedly connected to the corresponding extension end of the slide rail frame 2. The swinging motion of the adapting gear 43 is directly transmitted to the slide rail frame 2 to achieve angle adjustment.

[0054] In this invention, two threaded rods 15 are provided, corresponding to two adjusting frames 4 that are not on the same straight line. Each threaded rod 15 meshes with a corresponding adapting gear 43. The deflection angle of the two slide rail frames 2 is controlled by the two independently driven threaded rods 15, thereby achieving two-dimensional tilt coarse adjustment. Each threaded rod 15 is laterally inserted through the corresponding fixed frame 41, and is located below the corresponding adapting gear 43; this maintains a constant meshing position between the threaded rod 15 and the fan-shaped tooth area of ​​the adapting gear 43, reducing space occupation. The number of drive motors 16 corresponds to the number of threaded rods 15, and the output end of each drive motor 16 is connected to one end of the corresponding threaded rod 15; providing automated power, eliminating the need for manual intervention during the leveling process and improving response speed.

[0055] It should be noted that the adaptive vibration damping 3D printing platform designed in this invention, during use, regardless of whether the frame supporting the base plate is perpendicular to the ground, only requires starting the drive motor 16. The drive motor 16 drives the threaded rod 15 at the output end, and the axial rotation of the threaded rod 15 causes the upper adaptive gear 43 to slide along the slide rail (sliding rail 42). Since the adaptive gear 43 is fixedly connected to the extension end of the slide rail frame 2, the movement of the adaptive gear 43 will cause the slide rail frame 2 to deflect around its intersection point. The two overlapping arc-shaped slide rail frames 2 can independently change their spatial angles under the drive of their respective adjusting frames 4. The support rod 5 at the intersection point of the slide rail frames 2 slides within the two sliding grooves 3, thereby causing the secondary plate 6 to tilt and level in the horizontal plane. By coordinating the rotation direction and angle of the two threaded rods 15, the overall tilt posture of the secondary plate 6 can be coarsely adjusted, so that the printing table 8 roughly returns to horizontal. After the coarse adjustment is completed, the fine adjustment stage begins. The user can sequentially tighten the compression bolts 10 corresponding to the four corners of the secondary plate 6. When the extrusion bolt 10 is screwed downwards in the inner slide rail 9, the oblique cut 11 at its bottom end pushes the displacement force rod 12 to slide along the transverse section of the inner slide rail 9. The force application cut 14 at the other end of the displacement force rod 12 then pushes the lifting cut 13 at the bottom of the fine-tuning rod 7, forcing the fine-tuning rod 7 to lift upwards. Since the fine-tuning rod 7 supports the four corners of the printing table 8, the height of each corner of the printing table 8 can be independently changed by adjusting the screw depth of the four extrusion bolts 10, thus achieving fine calibration of the flatness of the printing table 8. When the printing platform has a large tilt angle or there is a significant deviation between the mounting plane of the base plate 1 and the horizontal plane, the drive motor 16 and the adjustment frame 4 are used first for large-range and rapid adaptive leveling; when there are slight undulations in the printing table 8 or thermal deformation compensation is required, high-precision fine-tuning is performed by manually or servo motor driven extrusion bolts 10. The two adjustment mechanisms work together to ensure that the printing table 8 is always perpendicular to the Z-axis movement direction of the printer (or the direction of gravity), thus providing an absolutely horizontal reference plane for 3D printing.

[0056] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adaptive vibration damping 3D printing platform, characterized in that, include: Base plate (1); The slide rail frame (2) is an arc-shaped frame, and there are two slide rail frames (2) stacked crosswise. Slide groove (3), said slide groove (3) is formed on each of said slide rails (2); Adjustment frame (4), four adjustment frames (4) are provided, and each adjustment frame (4) is fixedly connected to each extension end of the two slide rail frames (2); A support rod (5) is inserted through the intersection of the slide grooves (3) of the two slide rail frames (2), and the support rod (5) is slidably connected to the two slide rail frames (2); Secondary plate (6), the secondary plate (6) is fixedly connected to the top end of the support rod (5); Fine adjustment levers (7), at least four of which are distributed at the four corners of the secondary plate (6); A printing table (8) is placed on each of the fine adjustment levers (7).

2. The adaptive vibration damping 3D printing platform according to claim 1, characterized in that, include: The number of inner slides (9) corresponds to the number of fine adjustment rods (7), and each inner slide (9) is opened on the secondary plate (6); The number of the extrusion bolts (10) corresponds to the number of the fine adjustment rods (7), and the other end of each inner slide (9) is threadedly connected to the extrusion bolts (10); A bolt bevel (11) is formed at the bottom end of the extrusion bolt (10); Displacement force rod (12), the displacement force rod (12) is built into the transverse section of the inner slide (9); A lifting cut (13) is provided at the bottom end of the fine-tuning rod (7); Force application cut (14) is provided at both ends of the displacement force application rod (12), and the two ends of the force application cut (14) are in sliding contact with the bolt oblique cut (11) and the lifting cut (13) respectively.

3. The adaptive vibration damping 3D printing platform according to claim 1, characterized in that, The adjusting frame (4) includes: A fixing frame (41) is mounted on the base plate (1); The sliding rail (42) is the arc-shaped rail and is disposed on one side of the fixed frame (41); An adapting gear (43) is slidably connected to the sliding rail (42) on one side.

4. The adaptive vibration damping 3D printing platform according to claim 2, characterized in that, Also includes: Threaded rod (15), two threaded rods (15) are provided, and the two threaded rods (15) are correspondingly provided with two adjustment frames (4) that are not on the same straight line. Each threaded rod (15) meshes with the corresponding adaptive gear (43). The number of drive motors (16) corresponds to the number of threaded rods (15), and the output end of each drive motor (16) is connected to one end of the corresponding threaded rod (15).

5. The adaptive vibration damping 3D printing platform according to claim 3, characterized in that, One side of the adapting tooth (43) is fixedly connected to the extension end of the corresponding slide rail (2).

6. The adaptive vibration damping 3D printing platform according to claim 4, characterized in that, Each of the threaded rods (15) is transversely inserted through the corresponding fixing frame (41), and the threaded rod (15) is located below the corresponding adapting tooth (43).

7. The adaptive vibration damping 3D printing platform according to claim 2, characterized in that, Each of the inner slides (9) has a built-in fine adjustment rod (7) at one end.

8. The adaptive vibration damping 3D printing platform according to claim 3, characterized in that, The meshing teeth of the adaptive gear (43) are distributed in a fan shape.

9. The adaptive vibration damping 3D printing platform according to claim 2, characterized in that, The inner slide (9) is U-shaped.

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