High-precision 3d printer

Abstract

The utility model discloses a high precision 3d printer relates to 3d printer technical field, including printing mechanism, printing mechanism includes fixed mount and Z-axis moving subassembly, the fixed mount is equipped with X-axis moving subassembly, the moving end of X-axis moving subassembly is equipped with Y-axis moving subassembly, Z-axis moving subassembly is equipped with Z-axis moving subassembly, Z-axis moving subassembly is equipped with Z-axis moving subassembly, Z-axis moving subassembly is equipped with Z-axis moving subassembly, and Z-axis moving subassembly is equipped with Z-axis moving subassembly. The moving end of the Y-axis moving assembly is fixedly connected with a printing nozzle. According to the utility model, the loading platform is placed on the upper part of the placing table, then the servo motor drives the adjusting screw rod to rotate, and then the adjusting screw rod drives the sliding block to slide along the sliding rail, so that the two clamping plates move relatively, the loading platform is limited and fixed, and the loading platform is stably supported through the placing table; and the carrying platform is limited and fixed by the clamping plate, so that the placing stability of the carrying platform is improved, the stability of the workpiece in the printing process is improved, and the printing precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of 3D printer technology, and in particular to a high-precision 3D printer. Background Technology

[0002] A 3D printer is a device that can manufacture three-dimensional solid objects by layering materials (such as plastics, metals, ceramics, resins, etc.) according to three-dimensional model data. Based on digital model files, it uses tools such as nozzles, laser beams or electron beams to accurately stack materials according to preset shapes and structures. It can quickly and flexibly manufacture products of various complex shapes and is widely used in many fields such as industrial manufacturing, product design, medical, construction, and education.

[0003] For example, CN208359479U discloses "a high-precision 3D printer", which includes a worktable, with legs fixedly connected to both sides of the bottom of the worktable, and anti-slip pads fixedly connected to the bottom of the legs. Columns are fixedly connected to both sides of the top of the worktable, and sliding columns are fixedly connected to the top of the columns. Pneumatic sliding sleeves are slidably connected to the surface of the sliding columns.

[0004] However, in existing technologies, when clamping and fixing the platform, current 3D printers use an upper and lower structure to limit and fix the platform. This fixing method can cause the platform to tilt during the printing process when the weight of the workpiece on the upper part is unevenly distributed. The unstable fixing of the platform will significantly affect the printing accuracy. The tilted platform is prone to slight shaking or displacement, causing the position of the material extruded by the nozzle to deviate. This makes it impossible for each layer of printing material to be accurately stacked in the predetermined position, resulting in problems such as layer misalignment, uneven surface, and dimensional deviation in the printed model. This seriously reduces the printing accuracy and may even cause the printing task to fail. This effect is more prominent when printing high-precision, complex models. Utility Model Content

[0005] The purpose of this invention is to solve the problem that existing 3D printers use an upper and lower structure to limit and fix the platform during clamping. This fixing method can cause the platform to tilt during printing if the weight of the workpiece on top is unevenly distributed. The unstable fixing of the platform can significantly affect the printing accuracy. The tilted platform is prone to slight shaking or displacement, causing the nozzle to extrude material in a deviated position. This results in each layer of printing material not being accurately stacked in the predetermined position, leading to problems such as layer misalignment, uneven surface, and dimensional deviations in the printed model. This seriously reduces the printing accuracy and may even cause the printing task to fail. This effect is more pronounced when printing high-precision, complex models. Therefore, this invention proposes a high-precision 3D printer.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-precision 3D printer, comprising a printing mechanism, the printing mechanism including a fixed frame and a Z-axis moving component, an X-axis moving component installed inside the fixed frame, a Y-axis moving component installed at the moving end of the X-axis moving component, a printing nozzle fixedly connected to the moving end of the Y-axis moving component, a Z-axis moving component fixedly connected to the inside of the fixed frame, a workpiece placement mechanism fixedly connected to the moving end of the Z-axis moving component, the workpiece placement mechanism including a placement table, a slide rail fixedly connected to the upper part of the placement table, a servo motor installed at the end of the slide rail, an adjusting screw fixedly connected to the output end of the servo motor, a slider slidably connected inside the slide rail, the slider being threadedly connected to the adjusting screw, and a clamping plate fixedly connected to the side of the slider.

[0007] Preferably, two slide rails are fixedly connected to the upper part of the placement platform, and the two slide rails are symmetrically distributed on the surface of the placement platform.

[0008] Preferably, the slide rail has two sliders slidably connected inside, and the two sliders are symmetrically distributed inside the slide rail.

[0009] Preferably, the adjusting screw surface is provided with two threads in opposite directions, and the two sliders are respectively located on the two thread surfaces.

[0010] Preferably, a mounting bracket is fixedly connected to the upper part of the slide rail, an electric push rod is fixedly connected to the bottom of the mounting bracket, and a connecting plate is fixedly connected to the output end of the electric push rod.

[0011] Preferably, a connecting rod is inserted into the surface of the connecting plate, a limiting plate is fixedly connected to the bottom of the connecting rod, a spring is provided on the surface of the connecting rod, one end of the spring is fixedly connected to the connecting plate, and the other end of the spring is fixedly connected to the limiting plate.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the loading platform is placed on the upper part of the placement table, and then the servo motor drives the adjusting screw to rotate. The adjusting screw then drives the slider to slide along the slide rail, thereby causing the two clamping plates to move relative to each other, thus limiting and fixing the loading platform. The placement table provides stable support for the loading platform, and the clamping plates limit and fix the loading platform, improving the stability of the loading platform placement, thereby improving the stability of the workpiece during the printing process and improving the printing accuracy.

[0014] 2. In this utility model, the connecting plate is pushed downward by extending the electric push rod. At this time, the limiting plate moves downward to clamp and fix the surface of the platform again, which further improves the stability of the platform during the printing process, thereby improving the accuracy of the workpiece during the printing process. During the process of the limiting plate moving downward to clamp the platform, the spring is compressed, and the platform is clamped and fixed by the spring force, avoiding excessive clamping force and damage to the platform. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a high-precision 3D printer is provided for this utility model;

[0016] Figure 2 A top view of the structure of a high-precision 3D printer is provided for this utility model.

[0017] Figure 3 This utility model provides a side view structural diagram of a high-precision 3D printer;

[0018] Figure 4 This invention provides a three-dimensional structural diagram of a workpiece placement mechanism in a high-precision 3D printer.

[0019] Legend: 1. Printing mechanism; 11. Fixing frame; 12. X-axis moving assembly; 13. Y-axis moving assembly; 14. Printing nozzle; 15. Z-axis moving assembly; 2. Workpiece placement mechanism; 21. Placement stage; 22. Slide rail; 23. Servo motor; 24. Adjusting screw; 25. Slider; 26. Clamping plate; 27. Mounting bracket; 28. Electric push rod; 29. ​​Connecting plate; 210. Connecting rod; 211. Spring; 212. Limiting plate. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: As Figures 1-4 As shown, this utility model provides a high-precision 3D printer, including a printing mechanism 1. The printing mechanism 1 includes a fixed frame 11 and a Z-axis moving component 15. An X-axis moving component 12 is installed inside the fixed frame 11. A Y-axis moving component 13 is installed at the moving end of the X-axis moving component 12. A printing nozzle 14 is fixedly connected to the moving end of the Y-axis moving component 13. The Z-axis moving component 15 is fixedly connected to the inside of the fixed frame 11. A workpiece placement mechanism 2 is fixedly connected to the moving end of the Z-axis moving component 15. The workpiece placement mechanism 2 includes a placement table 21. A slide rail 22 is fixedly connected to the upper part of the placement table 21. A servo motor 23 is installed at the end of the rail 22. An adjusting screw 24 is fixedly connected to the output end of the servo motor 23. A slider 25 is slidably connected inside the rail 22. The slider 25 is threadedly connected to the adjusting screw 24. A clamping plate 26 is fixedly connected to the side of the slider 25. Two rails 22 are fixedly connected to the upper part of the placement platform 21. The two rails 22 are symmetrically distributed on the surface of the placement platform 21. Two sliders 25 are slidably connected inside the rail 22. The adjusting screw 24 has two threads in opposite directions on its surface. The two sliders 25 are located on the two threads respectively.

[0023] The specific settings and functions of this embodiment are described below. The loading platform is placed on the upper part of the placement table 21. Then, the servo motor 23 drives the adjusting screw 24 to rotate, and the adjusting screw 24 drives the slider 25 to slide along the slide rail 22, thereby causing the two clamping plates 26 to move relative to each other, thus limiting and fixing the loading platform. The placement table 21 provides stable support for the loading platform, and the clamping plates 26 limit and fix the loading platform, improving the stability of the loading platform placement, thereby improving the stability of the workpiece during the printing process and improving the printing accuracy. The X-axis moving component 12 drives the printing nozzle 14 to move in the X-axis direction, and the Y-axis moving component 13 drives the printing nozzle 14 to move in the Y-axis direction. Then, the Z-axis moving component 15 drives the workpiece placement mechanism 2 to move in the Z-axis direction, thereby performing high-precision printing operations through the printing nozzle 14.

[0024] Example 2: Figure 1 and Figure 4As shown, a mounting bracket 27 is fixedly connected to the upper part of the slide rail 22, an electric push rod 28 is fixedly connected to the bottom of the mounting bracket 27, a connecting plate 29 is fixedly connected to the output end of the electric push rod 28, a connecting rod 210 is inserted into the surface of the connecting plate 29, a limit plate 212 is fixedly connected to the bottom of the connecting rod 210, a spring 211 is provided on the surface of the connecting rod 210, one end of the spring 211 is fixedly connected to the connecting plate 29, and the other end of the spring 211 is fixedly connected to the limit plate 212.

[0025] The overall effect of this embodiment is that by extending the electric push rod 28 to push the connecting plate 29 downward, the limiting plate 212 moves downward to clamp and fix the surface of the platform again, further improving the stability of the platform during the printing process, thereby improving the accuracy of the workpiece during printing. During the process of the limiting plate 212 moving downward to clamp the platform, the spring 211 is compressed, and the elastic force of the spring 211 clamps and fixes the platform, avoiding excessive clamping force that could damage the platform.

[0026] The method of use and working principle of this device: The loading platform is placed on the upper part of the placement platform 21. Then, the servo motor 23 drives the adjusting screw 24 to rotate. The adjusting screw 24 then drives the slider 25 to slide along the slide rail 22, thereby causing the two clamping plates 26 to move relative to each other, thereby limiting and fixing the loading platform. The placement platform 21 provides stable support for the loading platform, and the clamping plates 26 limit and fix the loading platform.

[0027] Then, by extending the electric push rod 28, the connecting plate 29 is pushed downward. At this time, the limiting plate 212 moves downward to clamp and fix the surface of the platform again, further improving the stability of the platform during the printing process, thereby improving the accuracy of the workpiece during the printing process. During the process of the limiting plate 212 moving downward to clamp the platform, the spring 211 is compressed, and the platform is clamped and fixed by the elastic force of the spring 211.

[0028] The X-axis moving component 12 drives the print head 14 to move in the X-axis direction, the Y-axis moving component 13 drives the print head 14 to move in the Y-axis direction, and the Z-axis moving component 15 drives the workpiece placement mechanism 2 to move in the Z-axis direction, thereby performing high-precision printing operations through the print head 14.

[0029] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A high-precision 3D printer, comprising a printing mechanism (1), the printing mechanism (1) comprising a fixed frame (11) and a Z-axis moving assembly (15), an X-axis moving assembly (12) being installed inside the fixed frame (11), a Y-axis moving assembly (13) being installed at the moving end of the X-axis moving assembly (12), a printing nozzle (14) being fixedly connected to the moving end of the Y-axis moving assembly (13), and the Z-axis moving assembly (15) being fixedly connected inside the fixed frame (11), characterized in that: The Z-axis moving component (15) is fixedly connected to a workpiece placement mechanism (2). The workpiece placement mechanism (2) includes a placement platform (21). A slide rail (22) is fixedly connected to the upper part of the placement platform (21). A servo motor (23) is installed at the end of the slide rail (22). An adjusting screw (24) is fixedly connected to the output end of the servo motor (23). A slider (25) is slidably connected inside the slide rail (22). The slider (25) is threadedly connected to the adjusting screw (24), and a clamping plate (26) is fixedly connected to the side of the slider (25).

2. A high-precision 3D printer according to claim 1, characterized in that: The upper part of the placement platform (21) is fixedly connected to two slide rails (22), and the two slide rails (22) are symmetrically distributed on the surface of the placement platform (21).

3. A high-precision 3D printer according to claim 1, characterized in that: The slide rail (22) has two sliders (25) slidably connected inside, and the two sliders (25) are symmetrically distributed inside the slide rail (22).

4. A high-precision 3D printer according to claim 1, characterized in that: The adjusting screw (24) has two threads in opposite directions on its surface, and the two sliders (25) are located on the two thread surfaces respectively.

5. A high-precision 3D printer according to claim 1, characterized in that: The upper part of the slide rail (22) is fixedly connected to a mounting bracket (27), the bottom of the mounting bracket (27) is fixedly connected to an electric push rod (28), and the output end of the electric push rod (28) is fixedly connected to a connecting plate (29).

6. A high-precision 3D printer according to claim 5, characterized in that: A connecting rod (210) is inserted into the surface of the connecting plate (29). A limiting plate (212) is fixedly connected to the bottom of the connecting rod (210). A spring (211) is provided on the surface of the connecting rod (210). One end of the spring (211) is fixedly connected to the connecting plate (29), and the other end of the spring (211) is fixedly connected to the limiting plate (212).

Images