阅读说明：本技术 汽车空调出风口的制造方法 (Manufacturing method of air outlet of automobile air conditioner ) 是由 沈卫东 周炜 高建武 常帅 朱大炜 邢庆 于 2021-09-08 设计创作，主要内容包括：本发明涉及一种汽车空调出风口的制造方法。该制造方法包括步骤S1,制造所述汽车空调出风口的各零件,利用模具制造所述水平叶片；利用3D打印制造所述壳体、罩体、竖直叶片本体和密封部；步骤S2,装配,将所述竖直叶片本体和密封部粘合,形成所述竖直叶片；在所述罩体一侧装入所述竖直叶片和水平叶片,将所述罩体与壳体接插配合固定。通过本发明提供的方案有助于制造出符合功能性试验的汽车空调出风口,可以代替样车试制阶段的模具件进行相关的功能性试验,指导批量零件的结构优化,制造周期短、成本低。(The invention relates to a manufacturing method of an air outlet of an automobile air conditioner. The manufacturing method comprises the steps of S1, manufacturing each part of the air outlet of the automobile air conditioner, and manufacturing the horizontal blade by using a mould; manufacturing the housing, the cover body, the vertical blade body and the sealing part by using 3D printing; step S2, assembling, namely bonding the vertical blade body and the sealing part to form the vertical blade; and the vertical blades and the horizontal blades are arranged on one side of the cover body, and the cover body and the shell are inserted, matched and fixed. The scheme provided by the invention is beneficial to manufacturing the automobile air conditioner air outlet which accords with the functional test, can replace a mould part in a sample vehicle trial-manufacturing stage to carry out related functional test, guides the structural optimization of batch parts, and has short manufacturing period and low cost.)

1. A method of manufacturing an air outlet for a vehicle air conditioner, the air outlet comprising a housing, a shroud, a horizontal blade and a vertical blade, the housing and the shroud cooperating to form a space for accommodating the horizontal blade and the vertical blade, the vertical blade comprising a vertical blade body and a sealing portion which are cooperatively secured to one another, the method comprising:

step S1, manufacturing each part of the air outlet of the automobile air conditioner, and manufacturing the horizontal blade by using a mould; manufacturing the housing, the cover body, the vertical blade body and the sealing part by using 3D printing;

step S2, assembling, comprising the steps of:

step S21, bonding the vertical blade body and the sealing part to form the vertical blade;

and step S22, installing the vertical blades and the horizontal blades on one side of the cover body, and inserting and matching the cover body and the shell for fixing.

2. The manufacturing method according to claim 1, wherein printing-manufacturing the housing, the cover, the vertical blade body, and the seal portion in step S1 includes:

step S11, modeling, and respectively establishing three-dimensional models of the shell, the cover body, the vertical blade body and the sealing part;

step S12, generating model data, and importing the three-dimensional model into 3D printing slicing software to generate model data;

step S13, setting printing parameters, respectively determining the placing positions of the shell, the cover body, the vertical blade body and the sealing part in 3D printing, and setting corresponding 3D printing parameters;

step S14, printing, namely importing the model data and the 3D printing parameters into a 3D printer for printing;

and step S15, solidifying and solidifying the 3D printed part.

3. The manufacturing method according to claim 2, wherein in step S13, the placement positions of the housing, the cover, the vertical blade body and the sealing part in the 3D printing are respectively determined according to the force directions of the housing, the cover, the vertical blade body and the sealing part at the air outlet of the automobile air conditioner and the printing texture trend of the 3D printer.

4. The manufacturing method according to claim 3, wherein in step S13, a force direction of each of the housing, the cover, the vertical blade body, and the sealing portion at the air outlet of the automobile air conditioner is made to coincide with a printing texture trend direction of the 3D printer.

5. The manufacturing method according to claim 2, wherein in step S13, setting the 3D printing parameters includes enlarging a three-dimensional model of the parts to be printed according to a shrinkage rate of a printing material of each part.

6. The manufacturing method according to claim 2, wherein in step S15, the 3D-printed part is left standing in a fine sand box.

7. The manufacturing method of claim 1, wherein the air outlet of the vehicle air conditioner further comprises a shifting sheet, the shifting sheet is arranged on the horizontal blade, and one side of the shifting sheet is connected with the vertical blade.

8. The manufacturing method of claim 7, wherein the paddle is manufactured using 3D printing, the paddle being loaded onto the horizontal blade.

Technical Field

The invention relates to the technical field of automobile part manufacturing, in particular to a manufacturing method of an air outlet of an automobile air conditioner.

Background

In the conventional prototype stage, the parts with the test requirements are usually obtained by a small batch mold process. Small-batch molds have the inherent disadvantages of long cycle and high cost; meanwhile, the mould is not easy to change so as to support the research and development verification of an iterative new scheme. The 3D printing technology provides a mould-free production process and has the potential of solving the problem of pain points. However, the application of the 3D printing technology to the automobile body is mostly in the fields of sample piece display, tool fixtures and the like at present, and the application of the 3D printing technology to scheme verification and guidance of batch part structure optimization in the research and development stage is not found yet.

The technical route for manufacturing the air outlet of the automobile air conditioner at present and the problems are as follows:

1. mold manufacturing

At present, automobile air conditioner air outlets in a sample automobile trial-manufacturing stage are manufactured by adopting a traditional small-batch mold, the physical properties of parts are good, the precision is high, but the manufacturing cost is high, the manufacturing period is long, the mold modification cost is high, the modification period is long, and the research, development and verification of a new scheme in the sample automobile trial-manufacturing stage cannot be supported.

2. Vacuum pouring manufacturing

The existing vacuum pouring manufacturing process is a common rapid sample piece manufacturing method in a sample vehicle trial-manufacturing stage, and parts with complex structures can be manufactured due to good flexibility and elasticity of silicon rubber, and the manufacturing cost is low and the period is short. But the molded parts have low manufacturing precision and poor strength and temperature resistance, and are difficult to be applied to functional verification of the air outlet of the automobile air conditioner.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a manufacturing method of an air outlet of an automobile air conditioner, which combines mold manufacturing and 3D printing to manufacture the air outlet of the automobile air conditioner meeting functional tests, can replace mold pieces in a sample vehicle trial-manufacturing stage to carry out related functional tests, guides the structure optimization of batch parts, has short manufacturing period and low cost, and can quickly manufacture physical sample pieces according to the structure optimization requirements to support the verification of an optimization iteration scheme.

In order to solve the technical problem, the invention provides a manufacturing method of an air outlet of an automobile air conditioner, the air outlet of the automobile air conditioner comprises a shell, a cover body, a horizontal blade and a vertical blade, the shell and the cover body are matched to form a space for accommodating the horizontal blade and the vertical blade, the vertical blade comprises a vertical blade body and a sealing part which are mutually connected, matched and fixed, and the manufacturing method comprises the following steps:

step S1, manufacturing each part of the air outlet of the automobile air conditioner, and manufacturing the horizontal blade by using a mould; manufacturing the housing, the cover body, the vertical blade body and the sealing part by using 3D printing;

step S2, assembling, comprising the steps of:

step S21, bonding the vertical blade body and the sealing part to form the vertical blade;

and step S22, installing the vertical blades and the horizontal blades on one side of the cover body, and inserting and matching the cover body and the shell for fixing.

According to an embodiment of the present invention, the printing manufacturing of the housing, the cover, the vertical blade body, and the sealing part in step S1 includes:

step S11, modeling, and respectively establishing three-dimensional models of the shell, the cover body, the vertical blade body and the sealing part;

step S12, generating model data, and importing the three-dimensional model into 3D printing slicing software to generate model data;

step S13, setting printing parameters, respectively determining the placing positions of the shell, the cover body, the vertical blade body and the sealing part in 3D printing, and setting corresponding 3D printing parameters;

step S14, printing, namely importing the model data and the 3D printing parameters into a 3D printer for printing;

and step S15, solidifying and solidifying the 3D printed part.

According to an embodiment of the invention, in step S13, the placement positions of the casing, the cover, the vertical blade body and the sealing part in the 3D printing are determined according to the force directions of the casing, the cover, the vertical blade body and the sealing part at the air outlet of the automobile air conditioner and the printing texture trend of the 3D printer.

According to an embodiment of the invention, in step S13, the force direction of each of the housing, the cover, the vertical blade body and the sealing part at the air outlet of the automobile air conditioner is made to be consistent with the printing texture trend direction of the 3D printer.

According to one embodiment of the invention, in step S13, setting the 3D printing parameters includes enlarging a three-dimensional model of the part to be printed according to a shrinkage rate of the printing material of each part.

According to one embodiment of the invention, in step S15, the 3D-printed part is rested in a fine sand box.

According to one embodiment of the invention, the air outlet of the automobile air conditioner further comprises a shifting sheet, the shifting sheet is arranged on the horizontal blade, and one side of the shifting sheet is connected with the vertical blade.

According to one embodiment of the invention, the paddle is manufactured using 3D printing, loading the paddle onto the horizontal blade.

According to the manufacturing method of the air outlet of the automobile air conditioner, the 3D printing technology is introduced, the air outlet of the automobile air conditioner meeting the functional test requirements is manufactured, a mould piece in a sample vehicle trial manufacturing stage can be replaced to perform related functional tests, and the structural optimization of batch parts is guided.

Drawings

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, wherein:

fig. 1 is a flow chart illustrating a method for manufacturing an air outlet of an air conditioner for a vehicle according to an embodiment of the present invention;

FIG. 2 shows a flow diagram of 3D printing of an embodiment of the invention;

FIG. 3 is a schematic structural diagram of an air outlet of an automobile air conditioner according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of the housing of FIG. 3;

FIG. 5 is a schematic view of the construction of the housing of FIG. 3;

FIG. 6 is a schematic structural view of the horizontal blade of FIG. 3;

FIG. 7A is a schematic structural view of the vertical blade of FIG. 3;

FIG. 7B is a schematic structural view of the vertical blade body of FIG. 7A;

FIG. 7C is a schematic view of the structure of the sealing part in FIG. 7A;

fig. 8 is a schematic structural view of the pick in fig. 3.

Fig. 9 is a schematic view of a structure optimization of an air outlet of an automotive air conditioner according to an embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments disclosed below.

As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.

In describing the embodiments of the present application in detail, the cross-sectional views illustrating the structure of the device are not enlarged partially in a general scale for convenience of illustration, and the schematic drawings are only examples, which should not limit the scope of the present application. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

For convenience in description, spatial relational terms such as "below," "beneath," "below," "under," "over," "upper," and the like may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that these terms of spatial relationship are intended to encompass other orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary words "below" and "beneath" can encompass both an orientation of up and down. The device may have other orientations (rotated 90 degrees or at other orientations) and the spatial relationship descriptors used herein should be interpreted accordingly. Further, it will also be understood that when a layer is referred to as being "between" two layers, it can be the only layer between the two layers, or one or more intervening layers may also be present.

Fig. 3 shows a schematic structural diagram of an air outlet of an automotive air conditioner according to an embodiment of the present invention. Fig. 4 is a schematic structural view of the housing in fig. 3. Fig. 5 is a schematic view of the structure of the housing of fig. 3. Fig. 6 is a schematic view of the structure of the horizontal blade of fig. 3. Fig. 7A is a schematic structural view of the vertical blade of fig. 3. FIG. 7B is a schematic view of the structure of the vertical blade body of FIG. 7A. Fig. 7C is a schematic structural view of the sealing portion in fig. 7A. Fig. 8 is a schematic structural view of the pick in fig. 3. As shown in fig. 3, an air outlet of an air conditioner for an automobile mainly includes a housing, a cover, horizontal blades, and vertical blades. The housing and the cover cooperate to form a space for accommodating the horizontal blades and the vertical blades. Referring to fig. 7A to 7C, the vertical vane includes a vertical vane body and a sealing portion which are fitted and fixed to each other.

Fig. 1 shows a flowchart of a method for manufacturing an air outlet of an air conditioner of an automobile according to an embodiment of the present invention. As shown in the drawings, a method for manufacturing an air outlet 100 of an automobile air conditioner includes:

step S1, manufacturing each part of the air outlet 100 of the vehicle air conditioner, including the following steps:

the horizontal blade 103 is manufactured using a mold. Based on the material properties of the die piece, a 3D printing material is selected, and it is required to ensure that key physical property parameters such as elastic modulus, flexural modulus, elongation at break, temperature resistance, hardness and the like are kept close to each other, and since the elastic modulus of the material of the horizontal blade 103 is 18000MPa, no 3D printing material matched with the material is available at present, the horizontal blade 103 is manufactured by using a die alone, and the structure of the horizontal blade is shown in fig. 6.

The housing 101, the cover 102, the vertical blade body 105, and the seal 106 are manufactured using 3D printing. The parts other than the horizontal blade 103 are manufactured by 3D printing. The vertical blade 104 is composed of a vertical blade body 105 and a sealing part 106 connected with the vertical blade body 105, and since the vertical blade body 105 is made of a hard material and the sealing part 106 is made of a soft material, the vertical blade 104 cannot be directly printed, and needs to be disassembled into the vertical blade body 105 and the sealing part 106 and assembled after being respectively printed.

Step S2, assembling, comprising the steps of:

in step S21, the vertical blade body 105 and the seal portion 106 are bonded with an adhesive to form the vertical blade 104.

Step S22 is to fit vertical blade 104 and horizontal blade 103 into one side of cover 102, and to fix cover 102 and housing 101 in a plug-in fit.

The automobile air-conditioning outlet 100 manufactured by the manufacturing method provided by the invention can perform a series of functional tests such as temperature, rigidity, operation durability, installation firmness, safety, gas leakage control and the like according to development requirements, and the 3D printing test result is compared with the test result of a mould piece. According to comparison, the automobile air-conditioning outlet 100 manufactured by the method is very close to the result manufactured by the mold, so that the conclusion that the automobile air-conditioning outlet 100 manufactured by the method can replace a mold piece in a sample run trial manufacturing stage to perform related functional tests and guide the optimization of the structure of parts in batches can be obtained.

Preferably, the housing 101, the cover 102, the vertical blade body 105 and the sealing part 106 are print-manufactured in step S1, including:

step S11, modeling, and establishing three-dimensional models of the casing 101, the cover 102, the vertical vane body 105, and the seal portion 106, respectively.

In step S12, model data is generated, and the three-dimensional model is imported into 3D print slice software to generate model data.

Step S13, setting printing parameters, determining the placement positions of the casing 101, the cover 102, the vertical blade body 105, and the sealing part 106 in 3D printing, and setting corresponding 3D printing parameters.

And step S14, printing, namely importing the model data and the 3D printing parameters into a 3D printer for printing. As will be readily appreciated, each part is printed separately according to its own material requirements.

And step S15, solidifying and solidifying the 3D printed part.

Preferably, in step S13, the placing positions of the casing 101, the cover 102, the vertical blade body 105 and the sealing part 106 in the 3D printing are determined according to the force receiving directions of the casing 101, the cover 102, the vertical blade body 105 and the sealing part 106 at the air outlet 100 of the automobile respectively and the printing texture trend of the 3D printer. Preferably, in step S123, the stress direction of each of the housing 101, the cover 102, the vertical blade body 105 and the sealing part 106 at the air outlet 100 of the automobile air conditioner is made to be consistent with the printing texture trend direction of the 3D printer, so as to improve the structural strength of the printed part.

Preferably, in step S13, setting the 3D printing parameters includes enlarging a three-dimensional model of the part to be printed according to a shrinkage rate of the printing material of each part. For example, if the shrinkage of the printing material of a certain part is 0.2%, the three-dimensional model of the part needs to be enlarged by 0.2%.

Preferably, in step S15, the 3D-printed part is set still in a fine sand box. In the curing stage, all parts are placed in a fine sand box environment statically, so that the temperature resistance of all parts can be improved, and the deformation phenomenon of all parts in the curing process is avoided.

Preferably, the air outlet 100 of the vehicle air conditioner further includes a pulling piece 107. The pick 107 is disposed on the horizontal blade 103, and one side of the pick 107 is connected to the vertical blade 104. Conventionally, a shifting sheet 107 arranged on the air outlet 100 of the automobile air conditioner protrudes outwards, and the shifting sheet 107 is shifted up and down to drive a horizontal blade 103 to move up and down to adjust the air outlet direction of the air outlet; the horizontal poking shifting piece 107 can drive the vertical blade 104 to move left and right so as to adjust the air outlet direction of the air outlet left and right.

Preferably, the paddle 107 is manufactured by 3D printing, and the paddle 107 is loaded onto the horizontal blade 103. Specifically, the paddle 107 is applied to the aforementioned step S1 and step S2. The shifting piece 107 is manufactured by 3D printing, in the assembling process, the shifting piece 107 is fixedly connected with one horizontal blade 103 in the middle in a plug-in fit mode, and one side of the shifting piece 107 is fixedly connected with the vertical blade 104 in the middle.

Fig. 9 is a schematic view of the structural optimization of the cover body of the air outlet of the automobile air conditioner according to the embodiment of the invention. As shown in the figure, the left side of the arrow is the cover body structure before optimization, the test result after 3D printing is not ideal, and the analysis reason is that the strength of the cover body local position structure 108 is insufficient. The local structure 109 of the cover body on the right side of the arrow is formed through structural optimization (corresponding to the part A of the cover body in the figure 5), the test result is greatly improved through 3D printing manufacturing and experimental verification, and therefore the direction of structural optimization of batch parts is determined. The optimization process fully utilizes the advantages of the 3D printing technology, parts with optimized structure data are manufactured at low cost in a short period, the feasibility of the structure optimization scheme is verified by using a real object, and the development efficiency of the parts is effectively improved.

Although the present invention has been described with reference to the present specific embodiments, it will be appreciated by those skilled in the art that the above embodiments are merely illustrative of the present invention, and various equivalent changes and substitutions may be made without departing from the spirit of the invention, and therefore, it is intended that all changes and modifications to the above embodiments within the spirit and scope of the present invention be covered by the appended claims.