Method for manufacturing a satellite holder

Abstract

The embodiment of the present application relates to the technical field of satellite device, and discloses a kind of manufacturing method of satellite support, the manufacturing method of satellite support includes: manufacturing base and at least two positioning parts by additive manufacturing method, positioning part is located on base;Functional components are matched with positioning part, so that positioning part is limited to functional components;Fixed part is manufactured on positioning part by additive manufacturing method, so that fixed part is connected with functional components.Additive manufacturing technology has the characteristics of high efficiency, flexibility and integration, compared with the manufacturing method of prior art, has high manufacturing freedom, so that satellite support can be embedded in functional components during additive manufacturing, and then the additive manufacturing technology and automatic embedding technology are combined, so that the position of functional components is constrained during additive manufacturing of satellite support, realizing the integrated manufacturing of the combination of structure and function of satellite support.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of satellite device, and particularly relate to a manufacturing method of a satellite support. BACKGROUND

[0002] With the rapid development of space technology, satellites, such as micro-nano satellites, as a new type of space exploration platform, are gradually showing their unique advantages. Micro-nano satellites refer to satellites with a mass of less than 10 kilograms and having practical use functions, which are composed of three parts of a structural frame, an electronic circuit and a functional component. The functional component refers to the integration of electronic devices with specific functions on the micro-nano satellite, including a PCB (Printed Circuit Board) for controlling the function implementation of the micro-nano satellite, as well as a battery array, a driver, an antenna and a camera and other space loads. In the related art, the functional component is positioned after the assembly of the satellite support, and the fixing effect is prone to deviation and looseness, and the assembly efficiency is low. SUMMARY

[0003] The present application aims to at least solve one of the problems in the prior art or related art.

[0004] To this end, a first aspect of the present application provides a satellite support.

[0005] A second aspect of the present application provides a manufacturing method of a satellite support.

[0006] Therefore, according to the first aspect of the technical solution of the present application, a satellite support is provided, which comprises a base, at least two positioning parts and a fixing part, the positioning parts are located on the base and are used for limiting the functional component, the fixing part is connected with the positioning parts and is used for clamping with the functional component, and the base, the positioning parts and the fixing part are processed into an integrated structure by additive manufacturing technology.

[0007] In some technical solutions provided by the present application, the number of the base is at least two, the two bases are cross-connected, and the two ends of any base are connected with two positioning parts respectively.

[0008] In some technical solutions provided by the present application, the positioning part can pass through the functional component, so that the functional component is located between the fixing part and the base.

[0009] In some technical solutions provided by the present application, the satellite support further comprises a connecting part, one side of the connecting part can be bonded with the functional component, and the other side of the connecting part can be connected with the fixing part.

[0010] In some technical solutions provided in the application, the positioning portions are grooves, the two grooves are oppositely arranged on the two bases, and the two ends of the functional assembly can extend into the two grooves, and the fixing member connects the two grooves.

[0011] In some technical solutions provided in the application, the satellite support further comprises a support member connected with the base, the distance between the end surface of the support member away from the base and the base gradually increases in the direction close to the bottom, and the bottom end surface of the support member is coplanar with the bottom end surface of the base.

[0012] In the second aspect of the application, a manufacturing method of a satellite support is provided, which is used for manufacturing the satellite support provided in any one of the first aspect of the application, and the manufacturing method comprises the following steps: manufacturing the base and the at least two positioning portions by additive manufacturing, and the positioning portions are arranged on the base; matching the functional assembly with the positioning portions to limit the functional assembly by the positioning portions; and manufacturing the fixing member on the positioning portions by additive manufacturing to realize the clamping connection between the fixing member and the functional assembly.

[0013] In some technical solutions provided in the application, the step of manufacturing the base and the at least two positioning portions by additive manufacturing specifically comprises: manufacturing the at least two bases to be cross-connected; and manufacturing the two positioning portions on the two ends of any one base by additive manufacturing. The step of matching the functional assembly with the positioning portions specifically comprises: the positioning portions penetrating through the functional assembly.

[0014] In some technical solutions provided in the application, before the step of matching the functional assembly with the positioning portions, the method further comprises the step of: bonding the connecting member on the side of the functional assembly connected with the fixing member.

[0015] In some technical solutions provided in the application, the step of manufacturing the base and the at least two positioning portions by additive manufacturing specifically comprises: manufacturing the at least two bases and the two positioning portions, the positioning portions are grooves, and the two grooves are oppositely arranged. The step of matching the functional assembly with the positioning portions specifically comprises: extending the two ends of the functional assembly into the two grooves. After the step of manufacturing the fixing member on the positioning portions by additive manufacturing, the method further comprises the step of: manufacturing the support member on the base by additive manufacturing, the distance between the end surface of the support member away from the base and the base gradually increases in the direction close to the bottom, and the bottom end surface of the support member is coplanar with the bottom end surface of the base.

[0016] Compared with the prior art, the application has at least the following beneficial effects:

[0017] The additive manufacturing technology has the characteristics of high efficiency, flexibility and integration. Compared with the existing manufacturing method, the satellite support has high manufacturing freedom, so that the functional components can be embedded in the satellite support during the additive manufacturing process. The additive manufacturing technology and the automatic embedding technology are combined, so that the position of the functional components is constrained during the additive manufacturing process of the satellite support, the integrated manufacturing of the structure and the function of the satellite support is realized, the positioning effect of the positioning part and the fixing part on the functional components is more accurate and firm. Moreover, the additive manufacturing technology eliminates the assembly process and improves the manufacturing efficiency of the satellite support. BRIEF DESCRIPTION OF DRAWINGS

[0018] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not intended to limit the scope of the present application. Moreover, like reference numerals designate like parts throughout the several views in the drawings. In the drawings:

[0019] Figure 1 Structure schematic diagram of a satellite support according to an embodiment of the present application;

[0020] Figure 2 Structure schematic diagram of a satellite support according to an embodiment of the present application;

[0021] Figure 3 Structure schematic diagram of a satellite support according to an embodiment of the present application;

[0022] Figure 4 Structure schematic diagram of a satellite support according to an embodiment of the present application;

[0023] Figure 5 Structure schematic diagram of a functional component according to an embodiment of the present application;

[0024] Figure 6 Manufacturing process schematic diagram of a satellite support according to an embodiment of the present application;

[0025] Figure 7 Structure schematic diagram of a satellite support according to an embodiment of the present application;

[0026] Figure 8 Flowchart of a manufacturing method of a satellite support according to an embodiment of the present application;

[0027] Figure 9 Design idea schematic diagram of a satellite support according to an embodiment of the present application.

[0028] Wherein, Figures 1 to 9 The correspondence between the reference signs and the component names in the accompanying drawings is as follows:

[0029] 10 satellite holder, 100 base, 200 positioning part, 300 fixing part, 400 support part, 20 functional assembly. DETAILED DESCRIPTION

[0030] In order to better understand the above technical solutions, the technical solutions of the embodiments of the present application will be described in detail below through the drawings and specific embodiments. It should be understood that the specific features in the embodiments of the present application and the specific embodiments are detailed descriptions of the technical solutions of the embodiments of the present application, but not limitations of the technical solutions of the present application. In the case of no conflict, the technical features in the embodiments of the present application and the specific embodiments can be combined with each other.

[0031] The first aspect embodiment of the present application provides a satellite holder 10, as shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 7 , the satellite holder 10 comprises a base 100, at least two positioning parts 200 and a fixing part 300, the positioning part 200 is located on the base 100, the positioning part 200 is used for limiting the functional assembly 20, the fixing part 300 is connected with the positioning part 200, and the fixing part 300 is used for clamping with the functional assembly 20, wherein the base 100, the positioning part 200 and the fixing part 300 are processed into an integrated structure by additive manufacturing technology.

[0032] In this embodiment, the satellite holder 10 is used for supporting the functional assembly 20 in the satellite device. Exemplarily, the functional assembly 20 can be a circuit board or a battery pack. The positioning part 200 is arranged at the end of the base 100, and the positioning part 200 can cooperate with the functional assembly 20 to limit the functional assembly 20. The fixing part 300 is located at the end of the positioning part 200, and the fixing part 300 extends out of the positioning part 200 to clamp with the functional assembly 20. Therefore, through the positioning part 200 and the fixing part 300, the degrees of freedom of the functional assembly 20 are constrained, the positioning of the functional assembly 20 is realized, and the stability of the functional assembly 20 in the working state is improved.

[0033] The base 100, the positioning part 200 and the fixing part 300 are processed into an integrated structure by additive manufacturing technology. Exemplarily, the additive manufacturing technology can be a 3D printing technology. First, the base 100 and the positioning part 200 are manufactured by additive manufacturing. Then, the functional assembly 20 is placed on the base 100. During the placing process, the positioning part 200 cooperates with the functional assembly 20, so that the positioning part 200 can limit the functional assembly 20. Finally, the fixing part 300 is manufactured at the end of the positioning part 200 by additive manufacturing, so that the fixing part 300 clamps with the functional assembly 20 to constrain the spatial position of the functional assembly 20 and ensure the stability of the functional assembly 20.

[0034] The additive manufacturing technology has the characteristics of high efficiency, flexibility and integration. Compared with the existing manufacturing method, the satellite bracket 10 has high manufacturing freedom, so that the functional assembly 20 can be embedded in the satellite bracket 10 in the additive manufacturing process. Therefore, the additive manufacturing technology and the automatic embedding technology are combined, the position of the functional assembly 20 is constrained in the additive manufacturing process of the satellite bracket 10, the integrated manufacturing of the structure and the function of the satellite bracket 10 is realized, the positioning effect of the positioning part 200 and the fixing part 300 on the functional assembly 20 is more accurate and firm. Moreover, the additive manufacturing technology eliminates the assembly process and improves the manufacturing efficiency of the satellite bracket 10.

[0035] In some embodiments provided in the application, as shown in Figure 1 , optionally, the number of bases 100 is at least two, and the two bases 100 are cross-connected, and the two ends of any base 100 are respectively connected to two positioning parts 200.

[0036] In this embodiment, the base 100 extends along a straight line, and the two cross-connected bases 100 form an X shape. Two positioning parts 200 are respectively manufactured at the two ends of each base 100 by additive manufacturing. The two bases 100 are symmetrically arranged, the relative positions between the positioning parts 200 are ensured by the base 100, a parallel polygon is formed between the multiple positioning parts 200, and the positioning parts 200 are distributed on the top corners of the functional assembly 20.

[0037] The functional assembly 20 can be a PCB board, as shown in Figure 2 and Figure 3 , one positioning part 200 can constrain the translation of the functional assembly 20 along the X direction and the Y direction, and the rotation of the functional assembly 20 around the X direction and the Y direction. The two diagonally distributed positioning parts 200 jointly act to limit the rotation of the functional assembly 20 around the Z direction. The four positioning parts 200 can ensure the limiting effect of the positioning parts 200 and ensure the stability of the embedding process of the functional assembly 20.

[0038] In some embodiments provided in the application, as shown in Figure 2 , Figure 3 and Figure 4 , optionally, the positioning part 200 can pass through the functional assembly 20, so that the functional assembly 20 is located between the fixing part 300 and the base 100.

[0039] In this embodiment, the outer periphery of the functional component 20 is provided with a through hole, and the positioning portion 200 can pass through the through hole. For example, the positioning portion 200 can be a cylindrical pin, and the cylindrical pin structure can avoid the step effect of additive manufacturing. The two ends of the positioning portion 200 are respectively connected to the fixing member 300 and the base 100. The fixing member 300 extends out of the positioning portion 200 in the horizontal direction, so that the functional component 20 is fixed between the fixing member 300 and the base 100, to hinder the translation and rotation of the functional component 20 in each direction, thereby achieving the spatial position constraint of the functional component 20.

[0040] In some embodiments provided in the present application, optionally, the satellite support 10 further comprises a connecting member, one side of the connecting member can be bonded with the functional component 20, and the other side of the connecting member can be connected with the fixing member 300.

[0041] In this embodiment, the connecting member is first bonded to one side of the functional component 20, and then the functional component 20 is placed on the base 100 and connected with the fixing member 300, so that the connecting member is located between the functional component 20 and the fixing member 300. The connecting member can adjust the friction and pre-tightening force between the fixing member 300 and the functional component 20, improve the clamping strength, and improve the firmness of the fixing.

[0042] For example, the connecting member can be a masking paper or double-sided tape, and the connecting member can be bonded with the fixing member 300.

[0043] In some embodiments provided in the present application, as shown in Figure 6 and Figure 7 Optionally, the positioning portion 200 is a groove, and two grooves are oppositely arranged on the two bases 100. The two ends of the functional component 20 can extend into the two grooves, and the fixing member 300 is connected to the two grooves.

[0044] In this embodiment, when the functional component 20 is vertically placed, for example, the functional component 20 can be a battery pack. As shown in Figure 5 , the inclination angle A between the axis of the positioning structure and the vertical direction is too large. Due to the limitation of the additive manufacturing process, the hole positioning structure in the horizontal direction cannot be directly printed, and therefore, the satellite support 10 of the vertically placed functional component 20 adopts a planar positioning mode.

[0045] The positioning portion 200 is a groove, the extension direction of the groove is the same as that of the base 100, and a spacing is provided between the two bases 100, so that the openings of the two grooves are opposite to each other. The two ends of the functional component 20 are respectively embedded into the two grooves. The fixing member 300 is located at the bottom wall of the base 100 and is connected to the two grooves. The functional component 20 moves along the extension direction of the groove to the bottom of the base 100, and is clamped with the fixing member 300, thereby achieving the spatial positioning of the functional component 20.

[0046] In some embodiments provided in the present application, as shown inFigure 7 As shown, optionally, the satellite support 10 further comprises a support 400, the support 400 is connected with the base 100, the end face of the support 400 away from the base 100 is gradually increased in distance from the base 100 in the direction close to the bottom, and the bottom end face of the support 400 is coplanar with the bottom end face of the base 100.

[0047] In this embodiment, the support 400 is connected with the side of the base 100 where no groove is arranged, the bottom end face of the support 400 is on the same plane as the bottom end face of the base 100, and the bottom of the support 400 expands outward, which improves the support strength of the satellite support 10 on the functional assembly 20 and ensures the fixing effect of the satellite support 10.

[0048] Exemplarily, the number of the support 400 can be multiple, and the multiple supports 400 are distributed along the circumference of the base 100.

[0049] In a second aspect of the present application, a manufacturing method of a satellite support is provided, which is used for manufacturing the satellite support provided in any one of the first aspect embodiments, and the manufacturing method comprises: Figure 8 As shown, the manufacturing method of the satellite support comprises:

[0050] Step 101, manufacturing the base and the at least two positioning parts on the base by additive manufacturing;

[0051] Step 102, cooperating the functional assembly with the positioning parts to limit the functional assembly by the positioning parts;

[0052] Step 103, manufacturing the fixing part on the positioning part by additive manufacturing to make the fixing part clamped with the functional assembly.

[0053] In this embodiment, the base and the positioning parts are first manufactured by additive manufacturing, then the functional assembly is placed on the base, the positioning parts cooperate with the functional assembly during the placing process to limit the functional assembly, and finally the fixing part is manufactured on the end of the positioning part by additive manufacturing to make the fixing part clamped with the functional assembly to constrain the spatial position of the functional assembly and ensure the stability of the functional assembly.

[0054] The additive manufacturing technology has the characteristics of high efficiency, flexibility and integration, and has high manufacturing freedom compared with the manufacturing method of the prior art, so that the satellite support can embed the functional assembly in the additive manufacturing process, and then the additive manufacturing technology and the automatic embedding technology are combined, the position of the functional assembly is constrained by the satellite support in the additive manufacturing process, the integrated manufacturing of the structure and the function of the satellite support is realized, the positioning effect of the positioning part and the fixing part on the functional assembly is more accurate and firm. Moreover, the additive manufacturing technology eliminates the assembly process and improves the manufacturing efficiency of the satellite support.

[0055] In some embodiments provided in the present application, the step of manufacturing the base and the at least two positioning parts by additive manufacturing specifically comprises: manufacturing at least two bases, and connecting the two bases in cross; and manufacturing two positioning parts respectively at two ends of any base by additive manufacturing. The step of matching the functional assembly with the positioning parts specifically comprises: the positioning parts penetrating through the functional assembly.

[0056] In this embodiment, the base extends along a straight line, the two cross-connected bases form an X shape, two positioning parts are respectively manufactured at two ends of each base by additive manufacturing, and the two bases are symmetrically arranged, so that the relative positions between the positioning parts are ensured by the base, a parallel polygon is formed between the multiple positioning parts, and the positioning parts are distributed on the top corners of the functional assembly. The four positioning parts can ensure the limiting effect of the positioning parts and the stability of the embedding process of the functional assembly.

[0057] The outer periphery of the functional assembly is provided with a through hole, and the positioning part can penetrate through the through hole. Exemplarily, the positioning part can be a cylindrical pin. The two ends of any positioning part are respectively connected with a fixing member and a base, the fixing member extends out of the positioning part in the horizontal direction, and the functional assembly is fixed between the fixing member and the base to hinder the translation and rotation of the functional assembly in various directions, so as to constrain the spatial position of the functional assembly.

[0058] In some embodiments provided in the present application, before the step of matching the functional assembly with the positioning parts, the method further comprises: bonding a connecting member on one side of the functional assembly connected with the fixing member.

[0059] In this embodiment, the connecting member is first bonded on one side of the functional assembly, then the functional assembly is placed on the base and connected with the fixing member, so that the connecting member is located between the functional assembly and the fixing member. The connecting member can adjust the friction and pre-tightening force between the fixing member and the functional assembly, improve the clamping strength, and improve the firmness of the fixation.

[0060] In some embodiments provided in the present application, as shown in Figure 6 In some embodiments provided in the present application, the step of manufacturing the base and the at least two positioning parts by additive manufacturing specifically comprises: manufacturing at least two bases and two positioning parts, the positioning part is a groove, and the two grooves are oppositely arranged. The step of matching the functional assembly with the positioning parts specifically comprises: extending two ends of the functional assembly into the two grooves. After the step of manufacturing the fixing member on the positioning part by additive manufacturing, the method further comprises: manufacturing a supporting member on the base by additive manufacturing, the distance between the end face of the supporting member away from the base and the base gradually increases in the direction close to the bottom, and the bottom end face of the supporting member is coplanar with the bottom end face of the base.

[0061] In this embodiment, the positioning part is a groove, the groove is in the same direction as the extension of the base, and a spacing is provided between the two bases, so that the slots of the two grooves are opposite, and the two ends of the functional component are respectively embedded in the grooves on both sides. The fixing member is located at the bottom wall of the base and connects the grooves on both sides. The functional component moves to the bottom of the base along the extension direction of the groove, and is clamped with the fixing member, so as to realize the spatial positioning of the functional component.

[0062] The support member is connected to the side of the base without the groove, the bottom end face of the support member is in the same plane as the bottom end face of the base, and the bottom of the support member expands outward, improving the support strength of the satellite support to the functional component and ensuring the fixing effect of the satellite support.

[0063] In a specific embodiment, the assembly process is eliminated by combining additive manufacturing and automatic embedding technology, and the structural and functional integration of the product is realized. At the same time, during the whole additive manufacturing process, there is no assembly fastener to constrain the spatial position of the component. This process realizes effective constraint of the functional component by the positioning and fixing method of the functional component.

[0064] Under the premise of positioning and fixing the spatial six degrees of freedom of the functional component, combined with experimental experience and printing process, the support of the functional component is designed as shown in Figure 9 The fixed form is mainly based on the cooperation of the functional component and the insulating support structure, and the positioning and fixing methods of various typical functional components based on the cooperation mode are enumerated by referring to the positioning and fixing methods of workpieces in machining, and the feasibility is verified by experiment. If the cooperation mode can realize positioning and fixing function, but the fixed effect has obvious defects, try to pre-treat the embedded parts, such as sticking pattern paper, double-sided tape, etc. on the surface of the functional component, to ensure better fixation of the support to the functional component. If the tolerance cooperation fixing mode cannot be realized due to printing process, functional component shape, etc., the support is redesigned by using other forms and principles.

[0065] In the design process of the support, due to less restrictions and higher design freedom, certain principles and methods need to be followed, and the method of "positioning first, then fixing, and then optimizing" is adopted to carry out the design work of the support. That is, first position the spatial six degrees of freedom of the functional component, then design the fixing member based on the positioning form, and then consider the constraints of additive manufacturing process and the connection mode of conductive circuit to optimize the positioning and fixing structure, and then obtain the design of the functional component support under a working condition. Carry out experiments to verify the feasibility of the support and carry out corresponding iteration work.

[0066] I. PCB hole positioning support design:

[0067] The through holes for assembling and fixing are left around the PCB board, the six degrees of freedom of the PCB board are constrained by the through holes on the PCB board, and the printing-embedding-reprinting method is adopted. In order to ensure the stability of the embedding process, the design of fixing the four through holes can be adopted, the pause program is set in the pause embedding layer, the positioning part is printed, the PCB board is embedded, and then the fixing part is continuously printed, and the fixing of the PCB board is completed. The experimental results show that the satellite support can constrain the six degrees of freedom of the PCB board, and the fixing effect is good. The combination of the fixing part and the upper surface of the PCB board is not good, the masking tape is pasted around the positioning hole of the PCB board, and the adhesion problem of the fixing part is solved. By increasing the bottom area of the fixing part, the contact area of the fixing part and the masking tape is increased, so that the warping problem caused by small friction is solved.

[0068] II. Battery pack support design

[0069] The assembly of the battery pack is realized by the corresponding fixing of the PCB board behind the battery pack. In the vertical placement working condition, after the support is printed, the battery pack is inserted into the middle of the two positioning plates, and then the fixing part is continuously printed. Since the vertical placement battery pack has a high gravity center, the fixing part is improved based on the printing stability of the support, and the support structure is added on both sides of the support. The experimental results show that the planar fixing method can effectively position and fix the vertically placed battery pack, and the fixing effect is good.

[0070] In the present application, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; the term "multiple" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, "connecting" can be fixed connection, or detachable connection, or integrally connected; "connected" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0071] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or units referred to must have a particular direction, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0072] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "certain embodiments", and the like is intended to indicate that the described implementation, feature, structure, material or characteristic is included in at least one embodiment or example of the application. The illustrative representations of the above terms in the specification are not necessarily referring to the same embodiment or example. Moreover, the described implementation, feature, structure, material or characteristic can be combined in any one or more embodiments or examples in a suitable manner.

[0073] The above only is the preferred embodiment of the present application, and is not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method of manufacturing a satellite holder, characterized by, The application discloses a satellite support, which comprises a base, at least two positioning parts and a fixing part, wherein the positioning parts are arranged on the base and used for limiting a functional component; the fixing part is connected with the positioning parts and used for clamping the functional component; the base, the positioning parts and the fixing part are integrally formed by additive manufacturing technology; the number of the base is at least two; the two bases are cross-connected; two ends of any base are respectively connected with two positioning parts; the positioning parts can pass through the functional component, so that the functional component is located between the fixing part and the base; the satellite support further comprises a connecting part, one side of the connecting part is capable of being bonded with the functional component, and the other side of the connecting part is capable of being connected with the fixing part; and a manufacturing method of the satellite support comprises the following steps. The base and the at least two positioning parts are manufactured by additive manufacturing; The functional component is matched with the positioning parts, so that the positioning parts limit the functional component; The fixing part is manufactured on the positioning parts by additive manufacturing, so that the fixing part clamps the functional component; The step of manufacturing the base and the at least two positioning parts by additive manufacturing specifically comprises the following steps. The at least two bases are manufactured, so that the two bases are cross-connected; The two positioning parts are respectively manufactured at two ends of any base by additive manufacturing; The step of matching the functional component with the positioning parts specifically comprises the following steps. The positioning parts pass through the functional component; Before the step of matching the functional component with the positioning parts, the following step is further included. The connecting part is bonded on one side of the functional component which is connected with the fixing part.

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