3D printing device z-axis mounting platform and leveling method thereof

Abstract

The application discloses a 3D printing equipment Z-axis mounting platform and a leveling method thereof, and the mounting platform is provided with a locking mechanism, a first leveling mechanism, a second leveling mechanism and a lateral limiting mechanism, wherein the limiting part of the fine adjustment piece of the second leveling mechanism is bidirectionally butted against the leveling base plate and the Z-axis platform, bidirectional active push-pull adjustment of the Z-axis platform in the front-rear direction is realized, and double-shaft decoupling leveling is formed with the jacking leveling of the first leveling mechanism; after leveling is completed, the lateral limiting mechanism and the locking mechanism finally fix the platform. Through the bidirectional force applying mechanism of the fine adjustment piece, the precision and efficiency of leveling are remarkably improved, and in combination with accurate lateral limiting, the precision loss caused by final locking is effectively avoided, and a high-stability Z-axis mounting base is provided for an SLA equipment.

Description

Technical Field

[0001] This invention relates to the field of additive manufacturing technology, and in particular to a Z-axis mounting platform for a 3D printing device and its leveling method. Background Technology

[0002] SLA 3D printing equipment, also known as selective laser curing 3D printing equipment, is mainly used for industrial-grade photopolymer additive manufacturing. Its accuracy is affected by many factors, one of which is that the Z-axis mounting platform cannot be guaranteed to be perpendicular to the squeegee platform. This severely impacts the layer thickness accuracy of the printed sample. Typically, a single layer can be as thick as 0.05mm, so even a slight perpendicularity error can significantly amplify this dimensional error.

[0003] Existing SLA printing equipment typically uses marble as the Z-axis mounting platform. Marble is dense and has high compressive strength (usually 100-300MPa), effectively resisting external impacts during equipment operation (such as table lifting and laser galvanometer movement), preventing the frame from bending or twisting due to stress. Currently, marble platform installation does not use additional leveling methods, and marble is relatively fragile and prone to cracking, making it difficult to find suitable leveling methods.

[0004] Therefore, this application aims to propose a Z-axis mounting platform for 3D printing equipment and its leveling method to fill the technical gap in Z-axis marble platform leveling. Summary of the Invention

[0005] To address the problems existing in the prior art, this invention proposes a Z-axis mounting platform for 3D printing equipment and its leveling method to solve the aforementioned problems.

[0006] According to a first aspect of this application, a Z-axis mounting platform for a 3D printing device is proposed, comprising a device body and a load-bearing frame fixed to the device body, and further comprising:

[0007] A leveling base plate and a Z-axis platform are sequentially located on the front side of the support frame;

[0008] The locking mechanism includes several fasteners. The supporting frame is provided with a first clearance hole for the fasteners to pass through. The fasteners are sequentially threaded to the leveling base plate and the Z-axis platform, and an movable gap is formed between the first clearance hole and the fasteners to allow the Z-axis platform to tilt.

[0009] The first leveling mechanism includes support seats symmetrically distributed on the bottom of the Z-axis platform and lifting components detachably mounted on the support seats, with the lifting components pressing upward against the bottom surface of the Z-axis platform.

[0010] The second leveling mechanism includes at least one fine-tuning component, which comprises a limiting part and a connecting part. The leveling base plate and the Z-axis platform both abut against the limiting part, and the connecting part passes through the middle of the leveling base plate and is threadedly connected to the support frame.

[0011] The lateral limiting mechanism includes limiting plates spaced apart on the left and right sides of the Z-axis platform. Lateral limiting components are detachably provided on the limiting plates, and the lateral limiting components abut against the side of the Z-axis platform.

[0012] By adopting the above technical solution, a structure is designed in which the limiting part of the fine-tuning component in the second leveling mechanism bidirectionally abuts against the leveling base plate and the Z-axis platform, realizing bidirectional active push-pull adjustment of the Z-axis platform. This completely solves the drawback of traditional structures that can only apply force in one direction, thus significantly improving the leveling accuracy. Simultaneously, the cooperation between the first leveling mechanism (symmetrical left-right lifting) and the second leveling mechanism (central push-pull) effectively achieves decoupled adjustment of the tilt angles in the left-right and front-back directions, greatly improving the efficiency and convenience of the leveling operation. Furthermore, after leveling, the lateral limiting mechanism can precisely lock the left-right horizontal position of the platform. In addition to initially fixing the Z-axis platform before left-right leveling, the locking mechanism can also finally lock the position of the Z-axis platform after leveling, ensuring that the leveling accuracy is maintained during final fixing.

[0013] Preferably, the support frame is a grid-shaped frame, and the leveling base plate is placed on the front side of the upper crossbeam of the support frame. The upper and lower crossbeams of the support frame are provided with first clearance holes, and the fasteners are threaded to the Z-axis platform after passing through the lower first clearance hole.

[0014] By adopting the above technical solution, the grid-shaped frame can improve the structural rigidity and torsional resistance of the entire leveling system, providing a high-precision, non-deformable reference plane for the upper leveling base plate and the Z-axis platform. Simultaneously, by firmly placing the leveling base plate on the front side of the upper crossbeam of the supporting frame, and utilizing the first clearance holes in the upper and lower crossbeams with fasteners, the force on the locking mechanism is more evenly distributed, ensuring that the Z-axis platform has the necessary tilting clearance during leveling, and forming a highly stable rigid component upon final locking. This structural design effectively avoids the transmission or generation of leveling errors due to minor deformations of the frame itself, further guaranteeing the long-term stability and final leveling accuracy of the entire leveling system.

[0015] Preferably, the fasteners and lateral limiting components are all screws, the size of the first clearance hole is larger than the size of the fastener, and the size of the movable clearance is adapted to the angle range of the Z-axis platform tilting in the front-back direction and the left-right direction.

[0016] By adopting the above technical solution, the size of the first clearance hole is precisely controlled to be larger than the size of the fastener. This ensures that the size of the resulting clearance matches the tilt angle range of the Z-axis platform in the front-back and left-right directions. This guarantees that the Z-axis platform can always complete the required tilt adjustment in an unconstrained state during coarse and fine adjustments, avoiding limited adjustment range or premature interference. Simultaneously, this precise fit design avoids unnecessary excessive clearance, thereby minimizing platform wobbling and play during leveling, providing a reliable guarantee for the accuracy and stability of the leveling operation.

[0017] Preferably, the surfaces of the leveling substrate, the Z-axis platform, and the limiting part that abut against each other are provided with receiving grooves adapted to the shape of the limiting part, and the limiting part is embedded in the receiving grooves.

[0018] By adopting the above technical solution, receiving grooves adapted to the shape of the limiting part are provided on the contact surfaces of both the leveling substrate and the Z-axis platform, and the limiting part is embedded in them, successfully constructing a stable structure in which the limiting part is bidirectionally clamped. This receiving groove ensures that the limiting part maintains continuous and stable contact with the leveling substrate and the Z-axis platform when the fine-tuning component is axially rotated forward or backward, thus providing a reliable structural basis for applying bidirectional push-pull forces to the fine-tuning component. Simultaneously, this embedded receiving structure effectively fixes the radial position of the fine-tuning point, avoiding lateral slippage or backlash that may occur during the leveling process, and providing an unconstrained, highly stable pivot point for the fine-tuning process of the Z-axis platform.

[0019] In a further preferred embodiment, the fine-tuning component is a ball-head screw, the limiting part is spherical, the receiving groove is a hemispherical groove, and a second clearance hole is provided in the receiving groove of the leveling substrate for the connecting part to pass through, and the size of the second clearance hole is larger than the size of the connecting part.

[0020] By adopting the above technical solution, the spherical limiting part, combined with the hemispherical receiving groove, constructs a spherical contact structure. This minimizes frictional resistance and ensures uniform contact stress distribution during axial feeding of the fine-tuning component, greatly guaranteeing the stability and high sensitivity of bidirectional push-pull adjustment. More importantly, the leveling base plate receiving groove has a second clearance hole larger than the connecting part. This design ensures that when the Z-axis platform tilts during adjustment, the connecting part of the fine-tuning component will not interfere with or contact the leveling base plate.

[0021] Preferably, the upper and lower parts of the load-bearing frame are provided with limiting plates, and the limiting plates are welded to the load-bearing frame, wherein the lower limiting plate is integrally formed with the support base.

[0022] By adopting the above technical solution, the lower limiting plate and support base are integrally molded, effectively reducing the number of components and assembly errors, and significantly improving the overall rigidity of the support point of the first leveling mechanism. Simultaneously, by welding both the upper and lower limiting plates to the load-bearing frame, the lateral limiting mechanism is provided with maximized structural rigidity and a reliable fixing foundation. This rigid structure ensures that the lateral limiting component provides a stable and uniform radial locking force when it rotates into contact with the Z-axis platform, effectively preventing minor lateral displacement or swaying of the platform after leveling.

[0023] More preferably, the support base is an L-shaped right-angle bracket structure, including a horizontal support plate and a limiting plate and a back plate that are perpendicular to each other on the support plate. The support plate and the limiting plate are respectively provided with holes for installing the lifting component and the lateral limiting component, and the top surface of the back plate abuts against the bottom surface of the load-bearing frame.

[0024] By adopting the above technical solution, the perpendicular arrangement of the horizontal support plate, vertical limiting plate, and back plate constructs a high-strength local support structure. The mounting holes for the lifting and lateral limiting components are integrated into the support and limiting plates, achieving an integrated functional layout. The tight contact between the top surface of the back plate and the bottom surface of the load-bearing frame ensures that the supporting force of the first leveling mechanism can be directly and rigidly transmitted to the main load-bearing frame. This multi-plane support structure design greatly enhances the local stiffness of the leveling point area, effectively preventing any minor deformation of the support base during lifting, ensuring the high stability of the leveling reference plane, and thus ensuring the accuracy and reliability of leveling in the left and right directions.

[0025] Preferably, the lifting component is a screw threaded to the bottom of the support base, and a buffer pad is provided on the bottom surface of the Z-axis platform corresponding to the position of the support base, with the lifting component pressing against the bottom surface of the buffer pad.

[0026] By adopting the above technical solution, a buffer pad is set at the bottom of the Z-axis platform, so that the adjustment force applied upward by the lifting component acts on the buffer pad first, rather than directly against the Z-axis platform. This structural design can effectively avoid stress concentration caused by hard contact between the tip of the lifting screw and the platform, significantly reducing the risk of cracking or damage to the Z-axis platform material (especially brittle materials such as marble or precision ceramics) due to excessive local stress. The buffer pad, as a uniform force transmission layer, ensures that the lifting force can be stably diffused to the Z-axis platform.

[0027] Preferably, the Z-axis platform and the buffer pad are both made of marble or ceramic. The buffer pad is attached to or threaded onto the bottom surface of the Z-axis platform. The holes on the Z-axis platform for threading the buffer pad are staggered with the holes on the support base for installing the lifting component.

[0028] By adopting the above technical solution, both the Z-axis platform and the buffer pads are made of high-rigidity materials such as marble or ceramic, ensuring that the Z-axis drive system of the 3D printing equipment has an extremely stable reference base, which is crucial for high-precision SLA printing. The buffer pads are connected to the Z-axis platform via reliable attachment or threaded connection. More importantly, the holes on the Z-axis platform used to connect the buffer pads are staggered with the mounting holes of the lifting components. This design disperses the fixing stress of the buffer pads and the lifting stress of the lifting components onto different vertical axes. This stress dispersion layout successfully avoids the concentration and superposition of the two stresses in the same weak area, thereby maximizing the Z-axis platform's resistance to cracking.

[0029] According to a second aspect of this application, a method for leveling a Z-axis mounting platform for a 3D printing device is proposed, employing any of the aforementioned mounting platforms, including:

[0030] S1: Weld the load-bearing frame to the front of the main body of the equipment, and weld the limiting plate and support base to the load-bearing frame;

[0031] S2: The load-bearing frame is initially connected to the leveling base plate and the Z-axis platform in sequence by fasteners, which restricts the movement space of the Z-axis platform;

[0032] S3: Screw the lifting component upwards into the support seat so that the lifting component presses against the bottom surface of the Z-axis platform. Place the level on the top surface of the Z-axis platform, adjust the feed of the lifting component and observe the level, and then adjust the levelness of the Z-axis platform in the left and right directions.

[0033] S4: After leveling in the left and right directions, use the lateral limiting piece to rotate into the side of the Z-axis platform so that the lateral limiting piece abuts against the left and right sides of the Z-axis platform, restricting the displacement of the Z-axis platform in the left and right directions.

[0034] S5: Operate the fine adjustment part to screw in / out of the thread in the direction of approaching / moving away from the load-bearing frame, which will drive the upper part of the Z-axis platform to move in the direction of approaching / moving away from the load-bearing frame. Observe the level and adjust the levelness of the Z-axis platform in the front-back direction.

[0035] S6: After leveling in the front and back directions, tighten the fasteners onto the Z-axis platform to fix the position of the Z-axis platform.

[0036] By adopting the above technical solution, this method first uses a first leveling mechanism to adjust the left-right levelness of the Z-axis platform, and then uses a second leveling mechanism to perform high-precision front-back levelness adjustment, achieving efficient decoupling of the two main tilt axes. Particularly in step S5, the advance / retreat operation of the fine-tuning component ensures extremely high sensitivity and accuracy in the front-back adjustment. Simultaneously, combining lateral limiting and final locking steps effectively ensures that the Z-axis platform's position is rigidly maintained during the final locking process after precision leveling, avoiding the accuracy loss caused by final locking in traditional methods. This systematic leveling process provides SLA equipment with a high-precision, high-stability, and quickly positioned Z-axis mounting platform, allowing leveling to be completed during the Z-axis mounting platform assembly process.

[0037] Compared with the prior art, the beneficial effects of this application are as follows:

[0038] This application proposes a Z-axis mounting platform for 3D printing equipment and its leveling method, solving the problem that existing SLA structures cannot adjust the Z-axis levelness. Traditional structures simply fix the Z-axis platform on a reference surface, and subsequent adjustments to the Z-axis drive mechanism's posture on the Z-axis platform are not possible, as the platform's levelness itself cannot be adjusted. This application utilizes a leveling base plate, a ball joint structure of a fine-tuning component, and a receiving groove to protect the Z-axis platform from tensile damage. A lifting component is used to achieve horizontal leveling, followed by lateral limiting components to limit the Z-axis platform horizontally and prevent wobbling. Further leveling in the front-back direction is achieved by adjusting the fine-tuning component, and finally, fasteners are used for final position locking. This Z-axis mounting platform, combined with the leveling method, completes the leveling process during installation, eliminating the need for secondary leveling and preventing damage to the Z-axis platform's structure. A high-level Z-axis platform can further improve the printing accuracy of SLA equipment. Attached Figure Description

[0039] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and, together with the description, serve to explain the principles of the invention. Other embodiments and many anticipated advantages of the embodiments will be readily recognized as they become better understood through reference to the following detailed description. Elements in the drawings are not necessarily to scale. The same reference numerals refer to corresponding similar elements.

[0040] Figure 1 This is an assembly diagram of the Z-axis mounting platform according to an embodiment of this application;

[0041] Figure 2 This is an exploded view of the Z-axis mounting platform structure according to a specific embodiment of this application;

[0042] Figure 3This is a schematic cross-sectional view of the fine-tuning component according to a specific embodiment of this application;

[0043] Figure 4 This is a schematic diagram of the support structure according to a specific embodiment of this application;

[0044] Figure 5 This is a flowchart of a leveling method according to an embodiment of this application.

[0045] The meaning of each number in the diagram:

[0046] 01. Support frame, 02. Leveling base plate, 03. Z-axis platform, 04. Fastener, 05. First clearance hole, 06. Support base, 07. Lifting component, 08. Fine adjustment component, 09. Limiting part, 10. Connecting part, 11. Limiting plate, 12. Lateral limiting component, 13. Buffer pad, 14. Receiving groove, 15. Second clearance hole, 16. Support plate, 17. Back plate. Detailed Implementation

[0047] In the following detailed description, reference is made to the accompanying drawings, which form part of the detailed description and are illustrated by specific illustrative embodiments in which the invention may be practiced. In this regard, directional terms such as “top,” “bottom,” “left,” “right,” “up,” “down,” etc., are used with reference to the orientation of the described figures. Because components of the embodiments can be positioned in several different orientations, directional terms are used for illustrative purposes and are by no means limiting. It should be understood that other embodiments may be utilized or logical changes may be made without departing from the scope of the invention. Therefore, the following detailed description should not be taken in a limiting sense, and the scope of the invention is defined by the appended claims.

[0048] According to the first aspect of this application, a Z-axis mounting platform for a 3D printing device is proposed. Figure 1 A schematic diagram of the Z-axis mounting platform assembly according to an embodiment of this application is shown. Figure 2 An exploded view of the Z-axis mounting platform structure according to an embodiment of this application is shown, as follows: Figure 1-2 As shown, the installation platform includes a support frame 01, fixed to the main body of the equipment (not shown in the figure), which can be fixed by welding, bolts, etc. A leveling base plate 02 and a Z-axis platform 03 are sequentially arranged on the front side of the support frame 01; it also includes:

[0049] The locking mechanism includes several fasteners 04. The support frame 01 is provided with a first clearance hole 05 for the fasteners 04 to pass through. The fasteners 04 are sequentially threaded to the leveling base plate 02 and the Z-axis platform 03, and an movable gap is formed between the first clearance hole 05 and the fasteners 04 to allow the Z-axis platform 03 to tilt.

[0050] The first leveling mechanism includes a support base 06 symmetrically distributed on the bottom of the Z-axis platform 03 and a lifting component 07 detachably mounted on the support base 06. The lifting component 07 abuts against the bottom surface of the Z-axis platform 03.

[0051] The second leveling mechanism includes at least one fine-tuning component 08. The fine-tuning component 08 includes a limiting portion 09 and a connecting portion 10. The leveling base plate 02 and the Z-axis platform 03 both abut against the limiting portion 09. The connecting portion 10 passes through the middle of the leveling base plate 02 and is threadedly connected to the support frame 01.

[0052] The lateral limiting mechanism includes limiting plates 11 spaced apart on the left and right sides of the Z-axis platform 03. Lateral limiting members 12 are detachably provided on the limiting plates 11, and the lateral limiting members 12 abut against the side of the Z-axis platform 03.

[0053] Specifically, the Z-axis platform 03 can be leveled during installation. Leveling the Z-axis platform 03 involves adjusting the levelness of its top surface. Since the front vertical surface of the Z-axis platform 03 is used to install the drive mechanism in the Z-axis direction, when the top surface of the Z-axis platform 03 is leveled, its overall guiding direction is vertical along the Z-axis direction. The closer the top surface is to being level, the closer its guiding direction is to coinciding with the Z-axis.

[0054] Preferably, the support frame 01 is a grid-shaped frame, and the leveling base plate 02 is placed on the front side of the upper crossbeam of the support frame 01. The upper and lower crossbeams of the support frame 01 are provided with first clearance holes 05. The fastener 04 passes through the lower first clearance hole 05 and is threadedly connected to the Z-axis platform 03.

[0055] Specifically, before leveling the Z-axis platform 03, the Z-axis platform 03 is initially hoisted onto the bearing frame 01 using fasteners 04 to prevent uncontrolled changes in the position of the Z-axis platform 03 during the leveling process.

[0056] Preferably, both the fastener 04 and the lateral limiting member 12 are screws. The size of the first clearance hole 05 is larger than the size of the fastener 04. This size difference forms an active clearance, and the size of the active clearance is adapted to the tilting angle range of the Z-axis platform 03 in the front-back direction and the left-right direction.

[0057] Since the Z-axis platform 03 is initially hoisted and not completely fixed, when the Z-axis platform 03 tilts in the front-back and left-right directions, the fastener 04 will also tilt accordingly. The existence of the clearance means that the inner wall of the first clearance hole 05 will not restrict its tilting. While ensuring that the Z-axis platform 03 has sufficient tilting space, it plays a preliminary role in restricting its overall position.

[0058] Preferably, the lifting member 07 is a screw threaded to the bottom of the support base 06, and the bottom surface of the Z-axis platform 03 is also provided with a buffer pad 13 corresponding to the position of the support base 06, and the lifting member 07 abuts against the bottom surface of the buffer pad 13.

[0059] Specifically, when the leveling work in the left and right directions is completed, the lateral limiting member 12 needs to be adjusted to rotate into the left and right sides of the Z-axis platform 03 so that it abuts against the left and right sides of the Z-axis platform 03, thereby preventing the Z-axis platform 03 from shifting in the left and right directions after leveling.

[0060] Further preferably, the materials of the Z-axis platform 03 and the buffer pad 13 include, but are not limited to, marble or precision ceramic. The buffer pad 13 is attached to or threaded onto the bottom surface of the Z-axis platform 03. The holes of the Z-axis platform 03 for threaded connection of the buffer pad 13 and the holes of the support seat 06 for mounting the lifting component 07 are staggered.

[0061] Before performing the left and right leveling work, first install the buffer pad 13 to the bottom of the Z-axis platform 03. The buffer pad 13 is in direct contact with the support seat 06 and the lifting component 07, so that the lifting component 07 indirectly generates a lifting force on the Z-axis platform 03 through the buffer pad 13, avoiding stress concentration caused by direct contact and preventing excessive local stress on the Z-axis platform 03.

[0062] Figure 3 A schematic cross-sectional view of the fine-tuning component according to a specific embodiment of this application is shown, such as... Figure 3 As shown, the surfaces of the leveling substrate 02, the Z-axis platform 03, and the limiting part 09 that abut against each other are all provided with receiving grooves 14 adapted to the shape of the limiting part 09, and the limiting part 09 is embedded in the receiving grooves 14.

[0063] In a further preferred embodiment, the fine adjustment part 08 is a ball head screw, the limiting part 09 is spherical, the receiving groove 14 is a hemispherical groove, and the receiving groove 14 of the leveling substrate 02 is provided with a second clearance hole 15 for the connecting part 10 to pass through, and the size of the second clearance hole 15 is larger than the size of the connecting part 10.

[0064] Furthermore, the thread on the surface of the connecting part 10 of the fine adjustment part 08 is a fine thread, which allows the Z-axis platform 03 to make more subtle angle changes, such as 0.1° or 0.5°, when adjusting in the front and back directions, thereby improving the precision of the leveling work.

[0065] When the leveling base plate 02 and the Z-axis platform 03 are initially fixed by the fastener 04, the threaded part of the fastener 04 will be screwed into the corresponding holes of the leveling base plate 02 and the Z-axis platform 03 in sequence. During the fit, the leveling base plate 02 and the Z-axis platform 03 need to be clamped to the limiting part 09 of the fine adjustment part 08 beforehand to reduce the gap after fit. Since the leveling base plate 02 and the Z-axis platform 03 are threadedly connected to the same fastener 04, and the fastener 04 is not fully tightened, when the fine adjustment part 08 is screwed into the support frame 01, the limiting part 09 pushes the leveling base plate 02 in the direction of the support frame 01, thereby driving the Z-axis platform 03 to move together. When the fine adjustment part 08 is screwed out, the limiting part 09 pushes the back of the Z-axis platform 03 in the opposite direction, thereby driving the leveling base plate 02 to move together. After the front and back leveling work is completed, the fastener 04 is tightened to complete the front and back position fixation.

[0066] Figure 4 A schematic diagram of a support structure according to a specific embodiment of this application is shown, such as... Figure 1-4 As shown, the upper and lower parts of the load-bearing frame 01 are provided with limiting plates 11, and the limiting plates 11 are welded to the load-bearing frame 01. The lower limiting plate 11 is integrally formed with the support base 06.

[0067] More preferably, the support base 06 is an L-shaped right-angle bracket structure, including a horizontal support plate 16 and a limiting plate 11 and a back plate 17 that are perpendicular to each other on the support plate 16. The support plate 16 and the limiting plate 11 are respectively provided with holes for installing the lifting member 07 and the lateral limiting member 12, and the top surface of the back plate 17 abuts against the bottom surface of the bearing frame 01.

[0068] Furthermore, the load-bearing frame 01, leveling base plate 02, limiting plate 11, support base 06, etc. can all be made of cast iron.

[0069] Specifically, the limiting plate 11 has a raised positioning block structure, and the upper and lower crossbeams of the bearing frame 01 are provided with corresponding positioning notches. Therefore, when welding the upper limiting plate 11 and the lower support seat 06, the positioning block can be inserted into the positioning notch for positioning. After positioning, welding and fixing can be carried out quickly, eliminating the tedious step of manual positioning before welding.

[0070] According to the second aspect of this application, a method for leveling a Z-axis mounting platform for a 3D printing device is proposed, using any of the aforementioned mounting platforms. Figure 5 A flowchart of a leveling method according to an embodiment of this application is shown, as follows: Figure 5 As shown, the method includes:

[0071] S1: Weld the load-bearing frame to the front of the main body of the equipment, and weld the limiting plate and support base to the load-bearing frame;

[0072] S2: The load-bearing frame is initially connected to the leveling base plate and the Z-axis platform in sequence by fasteners, which restricts the movement space of the Z-axis platform;

[0073] S3: Screw the lifting component upwards into the support seat so that the lifting component presses against the bottom surface of the Z-axis platform. Place the level on the top surface of the Z-axis platform, adjust the feed of the lifting component and observe the level. Adjust the levelness of the Z-axis platform in the left and right directions by the difference in feed of the lifting components on the left and right sides.

[0074] S4: After leveling in the left and right directions, use the lateral limiting piece to rotate into the side of the Z-axis platform so that the lateral limiting piece abuts against the left and right sides of the Z-axis platform, restricting the displacement of the Z-axis platform in the left and right directions.

[0075] S5: Operate the fine adjustment part to screw in / out of the thread in the direction of approaching / moving away from the load-bearing frame, which will drive the upper part of the Z-axis platform to move in the direction of approaching / moving away from the load-bearing frame. Observe the level and adjust the levelness of the Z-axis platform in the front-back direction.

[0076] S6: After leveling in the front and back directions, tighten the fasteners onto the Z-axis platform to fix the position of the Z-axis platform.

[0077] Specifically, step S3 also includes: installing the buffer pad onto the bottom surface of the Z-axis platform, making the buffer pad directly contact the support base, and making the lifting component press against the bottom surface of the buffer pad.

[0078] Furthermore, after step S1, a secondary finishing or precision inspection step can be added to perform secondary finishing or precision inspection on the key mounting surfaces of the welded load-bearing frame, limiting plate, and support base to ensure that they meet the reference requirements for verticality and flatness.

[0079] It is evident that those skilled in the art can make various modifications and alterations to the embodiments of the present invention without departing from the spirit and scope of the invention. In this way, the invention is also intended to cover such modifications and alterations if they fall within the scope of the claims and their equivalents. The word "comprising" does not exclude the presence of other elements or steps not listed in the claims. The simple fact that certain measures are described in mutually different dependent claims does not indicate that a combination of these measures cannot be used for profit. Any reference numerals in the claims should not be considered as limiting the scope.

Claims

1. A Z-axis mounting platform for a 3D printing device, comprising a device body and a load-bearing frame fixed to the device body, characterized in that, Also includes: A leveling base plate and a Z-axis platform are sequentially arranged on the front side of the supporting frame; The locking mechanism includes several fasteners. The supporting frame is provided with a first clearance hole for the fasteners to pass through. The fasteners are sequentially threaded to the leveling base plate and the Z-axis platform, and a movable gap is formed between the first clearance hole and the fasteners to allow the Z-axis platform to tilt. The first leveling mechanism includes a support base symmetrically distributed on the bottom of the Z-axis platform and a lifting member detachably mounted on the support base, wherein the lifting member abuts against the bottom surface of the Z-axis platform upwards. The second leveling mechanism includes at least one fine-tuning component, which includes a limiting portion and a connecting portion. The leveling base plate and the Z-axis platform both abut against the limiting portion. The connecting portion passes through the middle of the leveling base plate and is threadedly connected to the support frame. The lateral limiting mechanism includes limiting plates spaced apart on the left and right sides of the Z-axis platform. Lateral limiting components are detachably provided on the limiting plates, and the lateral limiting components abut against the side of the Z-axis platform.

2. The installation platform according to claim 1, characterized in that, The supporting frame is a grid-shaped frame, and the leveling base plate is placed on the front side of the upper crossbeam of the supporting frame. The upper and lower crossbeams of the supporting frame are both provided with the first clearance hole. The fastener passes through the lower first clearance hole and is threadedly connected to the Z-axis platform.

3. The installation platform according to claim 1, characterized in that, The fasteners and lateral limiting components are all screws. The size of the first clearance hole is larger than the size of the fastener, and the size of the movable clearance is adapted to the angle range of the Z-axis platform tilting in the front-back direction and the left-right direction.

4. The installation platform according to claim 1, characterized in that, The surfaces of the leveling base plate, the Z-axis platform, and the limiting part that abut against each other are all provided with receiving grooves adapted to the shape of the limiting part, and the limiting part is embedded in the receiving grooves.

5. The installation platform according to claim 4, characterized in that, The fine-tuning component is a ball-head screw, the limiting part is spherical, the receiving groove is a hemispherical groove, and the receiving groove of the leveling substrate is provided with a second clearance hole for the connecting part to pass through, and the size of the second clearance hole is larger than the size of the connecting part.

6. The installation platform according to claim 1, characterized in that, The upper and lower parts of the bearing frame are provided with the limiting plate, and the limiting plate is welded to the bearing frame. The lower limiting plate is integrally formed with the support base.

7. The installation platform according to claim 5, wherein the support base is an L-shaped right-angle bracket structure, including a horizontal support plate and a limiting plate and a back plate perpendicularly disposed on the support plate, wherein the support plate and the limiting plate are respectively provided with holes for installing the lifting member and the lateral limiting member, and the top surface of the back plate abuts against the bottom surface of the bearing frame.

8. The installation platform according to claim 1, characterized in that, The lifting component is a screw threaded to the bottom of the support base. The bottom surface of the Z-axis platform is also provided with a buffer pad corresponding to the position of the support base. The lifting component abuts against the bottom surface of the buffer pad.

9. The installation platform according to claim 8, characterized in that, The Z-axis platform and the buffer pad are both made of marble or ceramic. The buffer pad is attached to or threaded onto the bottom surface of the Z-axis platform. The holes on the Z-axis platform for threading the buffer pad are staggered with the holes on the support base for installing the lifting component.

10. A method for leveling a Z-axis mounting platform of a 3D printing device, characterized in that, The installation platform described in any one of claims 1-9 includes: S1: Weld the load-bearing frame to the front side of the equipment body, and weld the limiting plate and support base to the load-bearing frame; S2: The supporting frame is initially connected to the leveling base plate and the Z-axis platform in sequence by fasteners, which restricts the movement space of the Z-axis platform; S3: Screw the lifting member upward into the support seat so that the lifting member abuts against the bottom surface of the Z-axis platform. Place the level on the top surface of the Z-axis platform, adjust the feed of the lifting member and observe the level, and then adjust the levelness of the Z-axis platform in the left and right directions. S4: After leveling in the left and right directions, use the lateral limiting member to rotate towards the side of the Z-axis platform so that the lateral limiting member abuts against the left and right sides of the Z-axis platform, restricting the displacement of the Z-axis platform in the left and right directions. S5: Operate the fine-tuning component to screw in / out in the direction of approaching / moving away from the support frame, thereby moving the upper part of the Z-axis platform in the direction of approaching / moving away from the support frame. Observe the level and adjust the levelness of the Z-axis platform in the front-back direction. S6: After leveling in the front and back directions, tighten the fasteners onto the Z-axis platform to fix the position of the Z-axis platform.

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