Transmission mechanism of 3D printer

Abstract

The transmission mechanism of the 3D printer comprises a base platform, an X-axis transmission assembly, a vertical frame, a Z-axis transmission assembly and a Y-axis transmission assembly, the X-axis transmission assembly is arranged on the base platform in the X-axis direction, and the vertical frame is fixedly arranged on the base platform and extends in the Z-axis direction; the Z-axis transmission assembly is arranged on the vertical frame and drives the bearing base to do lifting motion in the Z-axis direction. The Y-axis transmission assembly is installed on the bearing base and arranged in the Y-axis direction. Wherein the X-axis transmission assembly, the Z-axis transmission assembly and the Y-axis transmission assembly respectively form a three-axis linkage orthogonal coordinate system transmission system. According to the transmission mechanism, the X-axis transmission assembly, the Y-axis transmission assembly and the Z-axis transmission assembly are arranged in a mutually orthogonal mode, the movement of the printing spray head in a three-dimensional space can be accurately controlled, the printing precision and stability are ensured, the vertical frame is of a closed structure, the overall rigidity is enhanced, deformation and vibration during movement of the Y axis and the Z axis are reduced, and the stability of the printing process is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to 3D printer equipment technical field especially relates to 3D printer's transmission mechanism. BACKGROUND

[0002] 3D printing technology is a kind of technology to manufacture three-dimensional object by layer-by-layer accumulation material, is widely used in industrial manufacturing, medical treatment, education and other fields. In 3D printing process, the nozzle is one of the key components, is responsible for printing material (such as plastic, metal, resin, wax etc.) accurate spray and accumulation molding. Wax type 3D printer among them belongs to additive manufacturing equipment, it takes blue wax as model material, takes white wax as support material, sprays the wax of high temperature heating to printing platform, constructs model through layer-by-layer stacking. Since spray wax 3D printing model has the advantages such as high precision and surface smoothness, spray wax 3D printer is widely used in jewelry, aerospace, engine manufacturing industry. The printing material used by spray wax 3D printer is white wax and blue wax, wax is loaded in container, container is loaded into ink supply assembly, blue wax in container flows into ink supply assembly, flows into nozzle after high-temperature heating, nozzle sprays wax layer by layer to printing panel, constructs three-dimensional model.

[0003] Although the existing can complete the movement in three-axis direction, realizes three-dimensional printing work, but its structure is complex, and the cost is high, therefore, it is time-consuming and laborious to install, if any shaft installation precision problem appears in the installation process, then it will directly affect the printing precision of 3D printer, and an three-axis structure that meets the 3D printer is simple in structure, quick in installation and stable in operation is urgently needed. UTILITY MODEL CONTENTS

[0004] In view of the defects in the prior art, the transmission mechanism of the 3D printer provided by the utility model has the advantages of simple structure, convenient installation, stable operation and high printing precision

[0005] The utility model provides a kind of transmission mechanism of 3D printer, it include: base platform, X-axis transmission assembly, vertical frame, Z-axis transmission assembly and Y-axis transmission assembly, X-axis transmission assembly is provided on the base platform along X-axis direction, vertical frame is fixedly arranged on the base platform and extends along Z-axis direction, Z-axis transmission assembly is arranged on the vertical frame and drives carrier to move up and down along Z-axis direction, Y-axis transmission assembly is installed on the carrier and is arranged along Y-axis direction;Wherein, X-axis transmission assembly, Z-axis transmission assembly and Y-axis transmission assembly respectively constitute the orthogonal coordinate system transmission system of three-axis linkage.

[0006] Preferably, the X-axis transmission assembly comprises: an intermediate transmission wheel located at one end of the base platform, a distal transmission wheel located at the other end of the base platform, and an X-axis stepping motor located at one side of the intermediate transmission wheel, a driving wheel on the output shaft of the X-axis stepping motor is provided with a first synchronous belt between the intermediate transmission wheel, and the intermediate transmission wheel is provided with a second synchronous belt between the distal transmission wheel, and a transmission block is arranged on the second synchronous belt, and the transmission block is used for connecting the printing platform.

[0007] Preferably, the X-axis transmission assembly further comprises two X-axis guide rails, which are located on the two sides of the second synchronous belt and are arranged in parallel with the second synchronous belt.

[0008] Preferably, the Z-axis transmission assembly comprises a vertically arranged Z-axis ball screw, a lifting nut matched with the Z-axis ball screw, and a Z-axis stepping motor driving the rotation of the Z-axis ball screw.

[0009] Preferably, the Y-axis transmission assembly comprises a Y-axis ball screw arranged on the bearing seat, a translation nut matched with the Y-axis ball screw, and a Y-axis stepping motor driving the rotation of the Y-axis ball screw.

[0010] Preferably, the Y-axis transmission assembly further comprises two Y-axis guide rails, which are located on the upper and lower sides of the Y-axis ball screw, and are used for enhancing the stability of the Y-axis transmission assembly.

[0011] Preferably, the bearing seat is provided with a first mounting groove parallel to the Y-axis direction for arranging the Y-axis transmission assembly, and a second mounting groove is arranged at the two ends of the first mounting groove, respectively, and the second mounting groove is used for mounting the Z-axis transmission assembly.

[0012] Preferably, the vertical frame is in a closed shape, and the bottom edge frame is fixedly connected with the base platform.

[0013] The technical effect of the transmission mechanism of the 3D printer provided by the utility model is:

[0014] 1. The X-axis, Y-axis and Z-axis transmission assemblies are arranged orthogonally, which can accurately control the movement of the printing nozzle in the three-dimensional space, and ensure the printing precision and stability.

[0015] 2. The vertical frame adopts a closed structure, which enhances the overall rigidity, reduces the deformation and vibration during the movement of the Y-axis and Z-axis, and improves the stability of the printing process.

[0016] 3. The modular design structure is adopted, and the installation and maintenance are convenient. DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0018] Figure 1 is a structural schematic view of the transmission mechanism of the 3D printer of the embodiment of the present application;

[0019] Figure 2 is another view structural schematic view of the transmission mechanism of the 3D printer of the embodiment of the present application;

[0020] Figure 3 is a structural schematic view of the X-axis transmission assembly of the transmission mechanism of the 3D printer of the embodiment of the present application;

[0021] Figure 4 is a partial schematic view of the X-axis transmission assembly of the transmission mechanism of the 3D printer of the embodiment of the present application;

[0022] Figure 5 is a structural schematic view of the vertical frame of the transmission mechanism of the 3D printer of the embodiment of the present application;

[0023] Figure 6 is a structural schematic view of the bearing seat of the transmission mechanism of the 3D printer of the embodiment of the present application;

[0024] Figure 7 is another view structural schematic view of the bearing seat of the transmission mechanism of the 3D printer of the embodiment of the present application.

[0025] The drawings are as follows: base platform 1; X-axis transmission assembly 2; X-axis support 20; intermediate transmission wheel 21; distal end transmission wheel 22; X-axis stepping motor 23; driving wheel 24; first synchronous belt 25; second synchronous belt 26; transmission block 27; X-axis guide rail 28; vertical frame 3; bottom edge frame 31; upper edge frame 32; side edge frame 33; Z-axis transmission assembly 4; Z-axis ball screw 41; lifting nut 42; Z-axis stepping motor 43; bearing seat 5; first mounting groove 51; second mounting groove 52; Y-axis transmission assembly 6; Y-axis ball screw 61; translation nut 62; Y-axis stepping motor 63; Y-axis guide rail 64 DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0027] Please refer to Figure 1 and Figure 2 , the transmission mechanism of the 3D printer of the embodiment mainly comprises a base platform 1, an X-axis transmission assembly 2, a vertical frame 3, a Z-axis transmission assembly 4, a bearing seat 5 and a Y-axis transmission assembly 6, the X-axis transmission assembly 2 is arranged on the base platform 1 along the X-axis direction, the vertical frame 3 is fixedly installed on the base platform 1 and extends along the Z-axis direction, the Z-axis transmission assembly 4 is arranged on the vertical frame 3 and drives the bearing seat 5 to move up and down along the Z-axis direction, and the Y-axis transmission assembly 6 is installed on the bearing seat 5 and arranged along the Y-axis direction; wherein the X-axis transmission assembly 2, the Z-axis transmission assembly 4 and the Y-axis transmission assembly 6 respectively constitute a three-axis linkage orthogonal coordinate system transmission system, the X-axis, Y-axis and Z-axis transmission assemblies are arranged orthogonally, the movement of the printing nozzle in the three-dimensional space can be accurately controlled, and the printing precision and stability are ensured.

[0028] As shown in Figure 3 and Figure 4 , the X-axis transmission assembly 2 comprises an X-axis support 20, an intermediate transmission wheel 21, a distal end transmission wheel 22, an X-axis stepping motor 23 and a driving wheel 24, the intermediate transmission wheel 21 is installed at one end of the base platform 1, the distal end transmission wheel 22 is installed at the other end of the base platform 1, the intermediate transmission wheel 21 and the distal end transmission wheel 22 are connected through a second synchronous belt 26, the second synchronous belt 26 is arranged along the X-axis direction, a transmission block 27 is fixed on the second synchronous belt 26, and the transmission block 27 is used for connecting a printing platform. An X-axis stepping motor 23 is arranged on the side of the intermediate transmission wheel, the main body part of the X-axis stepping motor 23 is fixed at the lower end of the base platform 1, the output shaft of the X-axis stepping motor 23 penetrates through the upper part of the base platform 1 and is connected with the driving wheel 24, a first synchronous belt 25 is arranged between the driving wheel 24 and the intermediate transmission wheel 21, and the first synchronous belt 25 and the second synchronous belt 26 are arranged in a vertical direction, which is beneficial to saving the installation space of the transmission mechanism. The intermediate transmission wheel 21 comprises two synchronous wheels coaxially arranged in the upper and lower directions, the driving wheel 24 and the distal end transmission wheel 22 are connected through the first synchronous belt 25 and the second synchronous belt 26, and the X-axis support 20 is fixed on the base platform 1 and arranged along the X-axis direction.

[0029] The X-axis transmission assembly 2 further comprises two X-axis guide rails 28, which are arranged on both sides of the second synchronous belt 26 and parallel to the second synchronous belt 26, and the X-axis guide rails 28 can enhance the stability of the operation of the X-axis transmission assembly 2.

[0030] As shown in Figure 5 , Figure 6 and Figure 7 , the Z-axis transmission assembly 4 is arranged on the vertical frame 3 and close to the two side frames 33 of the vertical frame 3, and can drive the two ends of the bearing seat 5 to move up and down along the Z-axis direction, the Z-axis transmission assembly 4 is two, each Z-axis transmission assembly 4 comprises a vertically arranged Z-axis ball screw 41, a lifting nut 42 matched with the Z-axis ball screw 41, a Z-axis stepping motor 43 driving the Z-axis ball screw 41 to rotate, and a Z-axis guide rail improving the stability of the operation of the Z-axis transmission assembly 4.

[0031] The Y-axis transmission assembly 6 is installed on the bearing seat 5 and arranged along the Y-axis direction, the Y-axis transmission assembly 6 comprises a Y-axis ball screw 61 arranged on the bearing seat 5, a translation nut 62 matched with the Y-axis ball screw 61, and a Y-axis stepping motor 63 driving the Y-axis ball screw 61 to rotate. The Y-axis transmission assembly 6 further comprises two Y-axis guide rails 64, which are respectively arranged on the upper and lower sides of the Y-axis ball screw 61, for enhancing the stability of the operation of the Y-axis transmission assembly 6.

[0032] The bearing seat 5 is provided with a first mounting groove 51 parallel to the Y-axis direction for arranging the Y-axis transmission assembly 6, and a second mounting groove 52 is arranged at both ends of the first mounting groove 51, and the Z-axis transmission assembly 4 is installed in the second mounting groove 52. The bearing seat 5 adopts a hollow design, which aims to reduce the weight of the bearing seat 5, improve the movement sensitivity of the bearing seat 5, and is beneficial to reduce energy consumption.

[0033] The vertical frame 3 is in a closed shape, the bottom frame 31 is fixedly connected with the base platform 1, and the upper ends of the two side frames 33 extending upward from both ends of the bottom frame 31 are connected with the upper frame 32. Since the vertical frame 3 adopts a closed structure, the overall rigidity is enhanced, the deformation and vibration during the movement of the Y-axis and the Z-axis are reduced, and the stability of the printing process is improved.

[0034] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A transmission mechanism of a 3D printer, characterized by, The application relates to a three-axis linkage orthogonal coordinate system transmission system, which comprises a base platform (1), an X-axis transmission assembly (2), a vertical frame (3), a Z-axis transmission assembly (4) and a Y-axis transmission assembly (6), the X-axis transmission assembly (2) is arranged on the base platform (1) along the X-axis direction, the vertical frame (3) is fixedly arranged on the base platform (1) and extends along the Z-axis direction, the Z-axis transmission assembly (4) is arranged on the vertical frame (3) and drives a bearing seat (5) to move up and down along the Z-axis direction, and the Y-axis transmission assembly (6) is arranged on the bearing seat (5) along the Y-axis direction. The X-axis transmission assembly (2) comprises a middle transmission wheel (21) arranged at one end of the base platform (1), a far-end transmission wheel (22) arranged at the other end of the base platform (1) and an X-axis stepping motor (23) arranged at one side of the middle transmission wheel (21), a driving wheel (24) on the output shaft of the X-axis stepping motor (23) is arranged between the middle transmission wheel (21) and the far-end transmission wheel (22), a first synchronous belt (25) is arranged between the driving wheel (24) and the middle transmission wheel (21), a second synchronous belt (26) is arranged between the middle transmission wheel (21) and the far-end transmission wheel (22), a transmission block (27) is arranged on the second synchronous belt (26), and the transmission block (27) is used for connecting a printing platform.

2. The transmission mechanism of claim 1, wherein The X-axis transmission assembly (2) further comprises two X-axis guide rails (28) arranged on the two sides of the second synchronous belt (26) and parallel to the second synchronous belt (26).

3. The transmission mechanism of claim 2, wherein The Z-axis transmission assembly (4) comprises a vertically arranged Z-axis ball screw (41), a lifting nut (42) matched with the Z-axis ball screw (41) and a Z-axis stepping motor (43) used for driving the Z-axis ball screw (41) to rotate.

4. The transmission mechanism of claim 1, wherein The Y-axis transmission assembly (6) comprises a Y-axis ball screw (61) arranged on the bearing seat (5), a translation nut (62) matched with the Y-axis ball screw (61) and a Y-axis stepping motor (63) used for driving the Y-axis ball screw (61) to rotate.

5. The transmission mechanism of claim 1, wherein The Y-axis transmission assembly (6) further comprises two Y-axis guide rails (64) arranged on the upper and lower sides of the Y-axis ball screw (61) and used for enhancing the stability of the Y-axis transmission assembly (6).

6. The transmission mechanism of claim 5, wherein The bearing seat (5) is provided with a first mounting groove (51) parallel to the Y-axis direction and used for arranging the Y-axis transmission assembly (6), and a second mounting groove (52) is arranged at the two ends of the first mounting groove (51) and used for mounting the Z-axis transmission assembly (4).

7. The transmission of claim 1, wherein The vertical frame (3) is in a closed shape, and a bottom frame (31) of the vertical frame (3) is fixedly connected with the base platform (1).

8. The transmission of claim 1, wherein, ​

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