Flight additive manufacturing apparatus

Abstract

The utility model belongs to the field of additive manufacturing, and relates to flying additive manufacturing equipment which comprises at least two moving modules capable of freely moving. A laser processing assembly is arranged on each moving module; laser light generated by the laser processing assembly is converged on the forming breadth. The flying additive manufacturing equipment provided by the utility model can meet different precision requirements and can realize large-breadth and high-efficiency printing.

Description

Technical Field

[0001] The utility model belongs to the field of additive manufacturing, and relates to a flying additive manufacturing device, in particular to a different-light-path composite flying additive manufacturing device. Background Art

[0002] Metal 3D printing, commonly known as metal additive manufacturing, refers to a technique based on the discrete-accumulation principle, using a three-dimensional digital model file and program commands to construct metal parts layer by layer using powdered or filamentary metal materials. With the advancement of additive manufacturing equipment, the size and format of printed parts have become increasingly larger. The drawbacks of traditional N×N matrix multi-galvanometer printing for large-format parts are becoming increasingly apparent. Furthermore, equipment costs have increased significantly, and multiple lasers cannot be printed simultaneously along the printing wind direction, resulting in reduced printing efficiency. For example, the invention application with publication number CN 118305335 A and the utility model patent with authorization publication number CN 220679378 U both disclose flying laser forming equipment. The main difference between flying printing and conventional laser selective melting technology is that the galvanometer system of flying printing equipment typically adopts an N×1 single-row arrangement, and the entire galvanometer system is flown to achieve full-format printing. However, when different processing accuracy requirements are required at different positions on the same page or different process effects are required on the formed surface, the existing flying printing equipment cannot complete the task efficiently due to its N×1 single-row arrangement. Utility Model Content

[0003] In order to solve the above-mentioned technical problems existing in the background technology, the utility model provides a flying additive manufacturing device that can meet different precision requirements and can achieve large-scale and high-efficiency printing.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A flying additive manufacturing device is characterized in that: the flying additive manufacturing device includes at least two freely movable mobile modules; each of the mobile modules is provided with a laser processing component; the lasers generated by the laser processing components are all converged on the forming surface.

[0006] The above-mentioned mobile module is a gantry and / or a mechanical cantilever.

[0007] The gantry includes a second gantry and a first gantry; the laser processing assembly includes a first laser processing assembly and a second laser processing assembly; the first laser processing assembly is placed on the first gantry and moves synchronously with the first gantry; the second laser processing assembly is placed on the second gantry and moves synchronously with the second gantry; the laser generated by the first laser processing assembly and the laser generated by the second laser processing assembly are both converged on the forming surface; the first gantry and the second gantry are both able to move freely on the forming surface.

[0008] The height of the second gantry from the forming surface is equal to or different from the height of the first gantry from the forming surface.

[0009] The first laser processing assembly and the second laser processing assembly both include one or more lasers.

[0010] When the first laser processing assembly and / or the second laser processing assembly includes a plurality of lasers, the scanning areas of two adjacent lasers on the forming web overlap.

[0011] The type of the laser included in the first laser processing assembly is the same as or different from the type of the laser included in the second laser processing assembly.

[0012] The above-mentioned laser is a continuous laser and / or a pulsed laser.

[0013] The above-mentioned pulse laser is an ultrafast laser.

[0014] The above-mentioned flight additive manufacturing equipment also includes a second slide rail and a first slide rail respectively parallel to the forming surface; the second gantry is placed on the second slide rail and slides freely along the axial direction of the second slide rail; the first gantry is placed on the first slide rail and slides freely along the axial direction of the first slide rail.

[0015] The height of the second slide rail from the forming surface is equal to or different from the height of the first slide rail from the forming surface.

[0016] The above-mentioned flying additive manufacturing equipment also includes a first driving member and a second driving member; the first driving member is connected to the first gantry and drives the first gantry to move freely on the forming surface; the second driving member is connected to the second gantry and drives the second gantry to move freely on the forming surface.

[0017] The advantages of the utility model are:

[0018] The present invention provides a flying additive manufacturing device comprising at least two freely movable modules; each of the modules is equipped with a laser processing assembly; the laser light generated by the laser processing assembly converges onto the forming surface. On the one hand, the present invention increases the number of laser processing assemblies, allowing flying printing to be performed simultaneously using multiple groups of flying printing equipment. On the other hand, the present invention utilizes gantries of varying heights, each capable of independent flight and interoperability. Each gantry is equipped with laser processing assemblies of varying configurations, enabling the composite flight of multiple laser processing assemblies. Each laser processing assembly can emit light independently or simultaneously at different surfaces, improving printing efficiency and enabling simultaneous processing of multiple precision processes. Different laser processing assemblies include, but are not limited to, different laser beam parameters, different laser types, and different beam switching effects to achieve different process effects. The flying additive manufacturing device provided by the present invention can meet diverse processing precision requirements and, combined with the characteristics of flying printing, can achieve large-scale, high-efficiency, and multi-precision composite flying printing with different optical paths. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the flying additive manufacturing equipment provided by the utility model;

[0020] Figure 2 This is a schematic diagram of the optical path arrangement of the flying additive manufacturing equipment provided by the present invention;

[0021] Figure 3 This is a schematic diagram of the printing format formed by the flying additive manufacturing equipment provided by the present invention;

[0022] in:

[0023] 1-forming surface; 2-second slide rail; 3-first slide rail; 4-forming chamber; 5-second gantry; 6-first gantry; 7-laser; 8-area one; 9-area two; 10-area three; 11-stitching area one; 12-stitching area two. DETAILED DESCRIPTION

[0024] The utility model provides a flying additive manufacturing device, comprising at least two freely movable mobile modules; each mobile module is provided with a laser processing assembly; the lasers generated by the laser processing assembly are all converged on a forming width 1, and the mobile modules are gantry frames and / or mechanical cantilevers, or various devices or mechanical structures that can be easily moved in the prior art, which can all be adopted by the utility model.

[0025] The following takes the gantry as an example to describe the technical solution provided by the present invention in detail:

[0026] See also Figure 1 The flying additive manufacturing equipment provided by the present invention, in particular, the gantry used includes a second gantry 5 and a first gantry 6; the laser processing assembly includes a first laser processing assembly and a second laser processing assembly; the first laser processing assembly is placed on the first gantry 6 and moves synchronously with the first gantry 6; the second laser processing assembly is placed on the second gantry 5 and moves synchronously with the second gantry 5; the laser generated by the first laser processing assembly and the laser generated by the second laser processing assembly are both converged on the forming surface 1; the first gantry 6 and the second gantry 5 are both able to move freely on the forming surface 1. Compared with the flying printing equipment disclosed in the prior art, the flying additive manufacturing equipment provided by the present invention is different in that: the number of laser processing assemblies is increased, so that flying printing can be carried out simultaneously according to multiple groups of flying printing equipment, and the printing requirements can be completed efficiently on the same forming surface 1, that is, the N×1 structure or layout in the prior art is changed to the greatest extent. The simplest is to form an N×2 printing structure, and it can even be expanded to an N×N structure or layout. For example, see Figure 1 There are two gantries distributed on the top of the forming chamber 4. Each gantry is equipped with a set of laser processing components. The operation of each gantry can be controlled individually and cooperate with each other to complete composite flight additive manufacturing.

[0027] The height of the second gantry 5 from the forming format 1 is equal to or different from the height of the first gantry 6 from the forming format 1. When the heights of the two are the same, it is a direct extension of the existing technology. The first laser processing assembly and the second laser processing assembly are both in the same plane, and the printing requirements can be completed efficiently at the same time (the first laser processing assembly and the second laser processing assembly are operated relative to each other) or in sequence (the first laser processing assembly and the second laser processing assembly are operated in sequence). When the heights of the two are different, such as Figure 1 as well as Figure 2 As shown, this is the second difference between the flying additive manufacturing equipment provided by the present invention and the flying printing equipment disclosed in the prior art. The first laser processing assembly and the second laser processing assembly respectively perform independent or simultaneous printing work at different heights. For example, the first laser processing assembly can use an additive laser, and the second laser processing assembly can use a subtractive laser. They can complete additive manufacturing and subtractive cutting at different positions of the forming format 1, and can meet different processing accuracy requirements at different positions of the forming format 1 or different process effects required for the forming surface. See Figure 1 as well as Figure 2 The optical paths on each gantry can be arranged in a single row of N×1 or N×N. Each set of laser processing components can move with the gantry. The gantry has different heights, so when the optical paths intersect, the upper layer of the light output can be turned off to complete the optical path flight.

[0028] See also Figure 1 as well as Figure 2 The first laser processing assembly and the second laser processing assembly used in the present invention both include one or more lasers 7. While different lasers 7 have different parameters, the focal planes of all lasers 7 are located on the forming surface 1. Different lasers 7 can achieve different processing accuracies, thus enabling different precision machining requirements to be achieved in different areas of the same forming surface 1. Different laser processing assemblies include, but are not limited to, different laser powers, different types of lasers 7, different laser focus spot sizes, and different scanning ranges.

[0029] For example, see Figure 2 When the first laser processing assembly and / or the second laser processing assembly includes multiple lasers 7, the scanning areas of two adjacent lasers 7 on the forming web 1 overlap. Figure 3 For example, the first laser processing assembly and the second laser processing assembly can both cover the full width perpendicular to the flight direction, and each single-light printing width has a splicing area to improve printing efficiency; each set of laser processing assemblies can cover the full width of the flight direction through flight. Figure 2 and Figure 3 Taking the structure shown as an example, Figure 2 In FIG, the first laser processing assembly includes three lasers 7 from left to right, namely a left laser, a center laser and a right laser; Figure 3 In the example, the top filling parts are Figure 2 The scanning or forming areas of the three lasers shown (the left laser, the center laser, and the right laser) are area one 8, area two 9, and area three 10, respectively. At the same time, since the scanning areas of the two adjacent lasers 7 on the forming format 1 overlap (that is, there is a splicing area between the scanning of different lasers of the same laser processing component), under the action of the left laser and the center laser, a splicing area one 11 is formed between area one 8 and area two 9, and under the action of the center laser and the right laser, a splicing area two 12 is formed between area two 9 and area three 10. The result of splicing can fully cover or meet the design requirements of the forming format 1.

[0030] The type of laser 7 included in the first laser processing assembly is the same as or different from the type of laser 7 included in the second laser processing assembly. Laser 7 can be a continuous laser and / or a pulsed laser. For example, the pulsed laser can be an ultrafast laser. When both continuous lasers and pulsed lasers are present, additive and subtractive hybrid manufacturing can be achieved, improving forming efficiency while also achieving higher surface quality of the formed part.

[0031] See also Figure 1The flight additive manufacturing equipment provided by the present invention also includes a second slide rail 2 and a first slide rail 3, which are parallel to the forming surface 1 respectively; the second gantry 5 is placed on the second slide rail 2 and slides freely along the axial direction of the second slide rail 2; the first gantry 6 is placed on the first slide rail 3 and slides freely along the axial direction of the first slide rail 3.

[0032] For example, the height of the second slide rail 2 from the forming web 1 is equal to or different from the height of the first slide rail 3 from the forming web 1. When the two heights are the same, the second gantry 5 and the first gantry 6 are placed at the same height; when the two heights are different, the second gantry 5 and the first gantry 6 are placed at the same height. Figure 1 Taking the structure shown as an example, the height of the second slide rail 2 in the forming chamber 4 is lower than the height of the first slide rail 3 in the forming chamber 4, which is conducive to the simultaneous operation of the gantries equipped with the same or different lasers 7, further improving work efficiency.

[0033] In addition, the flight additive manufacturing equipment improved by the present invention also includes a first driving member and a second driving member; the first driving member is connected to the first gantry 6 and drives the first gantry 6 to move freely on the forming surface 1; the second driving member is connected to the second gantry 5 and drives the second gantry 5 to move freely on the forming surface 1.

Claims

1. An in-flight additive manufacturing device, characterized by: The flying additive manufacturing equipment comprises at least two freely movable modules; each of the movable modules is provided with a laser processing component; and the laser light generated by the laser processing component is converged on a forming surface (1).

2. The in-flight additive manufacturing device according to claim 1, characterized in that: The mobile module is a gantry and / or a mechanical cantilever.

3. The in-flight additive manufacturing device according to claim 2, characterized in that: The gantry comprises a second gantry (5) and a first gantry (6); the laser processing assembly comprises a first laser processing assembly and a second laser processing assembly; the first laser processing assembly is placed on the first gantry (6) and moves synchronously with the first gantry (6); the second laser processing assembly is placed on the second gantry (5) and moves synchronously with the second gantry (5); the laser light generated by the first laser processing assembly and the laser light generated by the second laser processing assembly are both converged on the forming surface (1); the first gantry (6) and the second gantry (5) are both able to move freely on the forming surface (1).

4. The in-flight additive manufacturing device according to claim 3, characterized in that: The height of the second gantry (5) from the forming surface (1) is equal to or different from the height of the first gantry (6) from the forming surface (1); and the first laser processing assembly and the second laser processing assembly both include one or more lasers (7).

5. The in-flight additive manufacturing device according to claim 4, characterized in that: When the first laser processing component and / or the second laser processing component includes a plurality of lasers (7), the scanning areas of two adjacent lasers (7) on the forming web (1) overlap.

6. The in-flight additive manufacturing device according to claim 5, characterized in that: The type of the laser (7) included in the first laser processing assembly is the same as or different from the type of the laser (7) included in the second laser processing assembly.

7. The in-flight additive manufacturing device according to claim 6, characterized in that: The laser (7) is a continuous laser and / or a pulse laser; the pulse laser is an ultrafast laser.

8. The in-flight additive manufacturing device according to any one of claims 3 to 7, characterized in that: The in-flight additive manufacturing equipment further comprises a second slide rail (2) and a first slide rail (3) respectively parallel to the forming surface (1); the second gantry (5) is placed on the second slide rail (2) and slides freely along the axial direction of the second slide rail (2); and the first gantry (6) is placed on the first slide rail (3) and slides freely along the axial direction of the first slide rail (3).

9. The in-flight additive manufacturing device according to claim 8, characterized in that: The height of the second slide rail (2) from the forming surface (1) is equal to or different from the height of the first slide rail (3) from the forming surface (1).

10. The in-flight additive manufacturing device according to claim 9, characterized in that: The flying additive manufacturing device further comprises a first driving member and a second driving member; the first driving member is connected to the first gantry (6) and drives the first gantry (6) to move freely on the forming surface (1); the second driving member is connected to the second gantry (5) and drives the second gantry (5) to move freely on the forming surface (1).

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