A method for producing a metal fan cover

Abstract

The application discloses a production method of a metal fan cover shell, and comprises the following steps: S1, blanking; S2, punch forming, distributing each blank to a corresponding forming equipment, and forming by using a corresponding forming die; S3, edge cutting and shaping; S4, automatic assembly template processing, processing an automatic assembly template made of plastic by means of injection molding; S5, automatic assembly, conveying each accessory of the fan cover shell to a waiting area in sequence by a multi-axis manipulator according to the assembly sequence of each accessory of the fan cover shell, fixing corresponding cover shell accessories to corresponding limiting structures by a positioning device on the automatic assembly template until the accessories of the entire cover shell are completely fixed on the automatic assembly template, and finally conveying the automatic assembly template to a rivet machine by the multi-axis manipulator for assembly; and S6, packaging, packaging the assembled fan cover shell together with the automatic assembly template, and conveying the packaged fan cover shell to a tool storage area after packaging.

Description

Technical Field

[0001] This application relates to the field of fan processing technology, and more specifically, to a method for producing a metal fan casing. Background Technology

[0002] Existing wind turbine casings typically include plastic and aluminum alloy materials. Plastic has low strength but is easy to mold and can be formed in one step using injection molding. Aluminum alloy, on the other hand, has high strength but is more difficult to mold and is usually broken down into multiple parts. Each part is first molded by compression molding and then assembled.

[0003] As product quality requirements become increasingly stringent, more and more users are opting for aluminum alloy fan housings. This places significant demands on companies' production efficiency, as current processes cannot meet customer demand. Furthermore, the use of aluminum alloy fan housings also presents a drawback: due to their thinness after processing, they are prone to deformation during transportation, resulting in defective products. Therefore, current processing methods need to be improved to overcome these shortcomings. Summary of the Invention

[0004] The main objective of this application is to provide a method for producing metal fan housings, which not only improves production efficiency but also significantly reduces the scrap rate caused by deformation during transportation.

[0005] To achieve the above objectives, in a first aspect, this application provides a method for producing a metal fan housing, comprising the following steps;

[0006] S1. Cutting: According to the design dimensions, aluminum alloy sheets are cut using cutting equipment to obtain blanks for each component of the cover.

[0007] S2. Stamping: Distribute each blank to its respective forming equipment and form it using the corresponding forming mold.

[0008] S3. Trimming and shaping: After stamping, remove excess material from the edges of the cover parts and shape and size according to design requirements.

[0009] S4. Automatic assembly template processing: Automatic assembly templates made of plastic are processed by injection molding. The automatic assembly template includes a template body, a limiting structure for limiting the assembly position of each cover accessory, and a positioning device for positioning each accessory.

[0010] S5. Automatic assembly: The automatic assembly template is transported to the waiting area of ​​each component in the order of assembly of each component of the fan cover by a multi-axis robot. The corresponding cover component is fixed to the corresponding limiting structure by the positioning device on the automatic assembly template until the components of the entire cover are completely fixed on the automatic assembly template. Finally, the multi-axis robot transports the automatic assembly template to the riveting machine for assembly.

[0011] S6. Packaging: Pack the assembled fan housing together with the automatic assembly template, and then transport it to the workpiece storage area.

[0012] Optionally, the process also includes a surface treatment step between step S3 and step S4, which involves anodizing the processed housing parts and controlling the oxide film thickness to be between 2 μm and 5 μm.

[0013] Optionally, in step S5, the waiting area of ​​the cover accessory is respectively provided with a detection mechanism to detect whether the cover accessory is installed at a preset position of the automatic assembly template.

[0014] Optionally, the detection agency is a visual inspection agency.

[0015] Optionally, in step S5, the waiting area of ​​the cover accessory is further provided with a workpiece support frame, and a workpiece suction cup is rotatably mounted on the workpiece support frame. When the multi-axis robot moves to the waiting area, there is a preset angle between the workpiece suction cup and the workpiece support frame.

[0016] Optionally, the multi-axis robotic arm is equipped with multiple negative pressure suction cups for picking up the automatic assembly template.

[0017] Optionally, the limiting structure includes a limiting groove and / or a limiting baffle.

[0018] Optionally, the positioning device is a magnet fixedly mounted on the automatic assembly template.

[0019] Optionally, the cutting equipment is a laser cutting machine.

[0020] The present invention provides a method for producing a metal fan housing. Compared with the prior art, its advantages are as follows: the processing of each component of the fan housing is similar to that of conventional methods. However, by setting up an automatic assembly template, it not only facilitates the automatic assembly of the fan housing, but also provides support strength by packaging it together with the housing after assembly, preventing product deformation during transportation. Users can directly remove the template before use. In addition, during the assembly process, a multi-axis robot uses a set degree to fix the housing components to the automatic assembly template from each station in sequence, and finally transports them to the assembly station for automatic assembly. The degree of automation is high, greatly reducing labor costs and significantly improving production efficiency. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings:

[0022] Figure 1 This is a schematic diagram of an automatic assembly template;

[0023] Figure 2 This is a schematic diagram of the components of a metal fan casing.

[0024] The components include: 1. Template body; 2. Limiting structure; 3. Positioning device. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0026] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0027] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0028] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0029] In addition, the term "multiple" should mean two or more.

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] A method for producing a metal fan casing includes the following steps;

[0032] S1. Cutting: According to the design dimensions, aluminum alloy sheets are cut using cutting equipment to obtain blanks for each component of the cover.

[0033] S2. Stamping: Distribute each blank to its respective forming equipment and form it using the corresponding forming mold.

[0034] S3. Trimming and shaping: After stamping, remove excess material from the edges of the cover parts and shape and size according to design requirements.

[0035] S4. Automatic assembly template processing: Automatic assembly templates made of plastic are processed using injection molding, such as... Figure 1 As shown, the automatic assembly template includes a template body 1, a limiting structure 2 for limiting the assembly position of each cover component, and a positioning device 3 for positioning each component.

[0036] S5. Automated assembly: A multi-axis robotic arm sequentially transports the automated assembly template to the waiting area of ​​each component according to the assembly sequence of the fan housing. Positioning devices on the automated assembly template fix the corresponding housing components to their respective limiting structures until all components of the entire housing are completely fixed to the automated assembly template. Finally, the multi-axis robotic arm transports the automated assembly template to a riveting machine for assembly. The various components of the fan housing are as follows: Figure 2 As shown, it includes a cover body, baffles on both sides and multiple crossbars. Both ends of the cover body and both ends of the crossbars have connecting plugs that cooperate with the plug slots on the baffles on both sides. During assembly, the plugs of each component cooperate with the limiting structure 2 on the automatic assembly template to achieve precise positioning. Moreover, positioning is achieved by magnetic attraction, thereby realizing automated and precise assembly.

[0037] S6. Packaging: Pack the assembled fan housing together with the automatic assembly template, and then transport it to the workpiece storage area.

[0038] To ensure product quality, a surface treatment step is also included between steps S3 and S4, in which the processed housing parts are anodized, and the oxide film thickness is controlled between 2μm and 5μm.

[0039] To ensure accuracy during automatic assembly, in step S5, the waiting area for the cover parts is equipped with a detection mechanism to detect whether the cover parts are installed at a preset position on the automatic assembly template. The detection mechanism is a vision detection mechanism, which can automatically identify whether each part is installed in place on the automatic assembly template, thereby ensuring assembly accuracy.

[0040] In step S5, the waiting area for the cover accessory is also equipped with a workpiece support frame, on which a workpiece suction cup is rotatably mounted. When the multi-axis robot moves to the waiting area, there is a preset angle between the workpiece suction cup and the workpiece support frame. Since the fan cover accessory requires snap-fit ​​engagement, by setting the accessory at the preset angle, when the robot drives the accessory on the automatic assembly template to the accessory, the two accessories with an assembly relationship directly have the preset angle. Thus, when picking up the accessory, automatic snap-fit ​​assembly is achieved from a certain angle, resulting in a high degree of automation.

[0041] Preferably, the multi-axis robotic arm is equipped with multiple negative pressure suction cups for picking up the automatic assembly template, the limiting structure 2 includes a limiting groove and / or a limiting baffle, the positioning device 3 is a magnet fixedly set on the automatic assembly template, the magnet is embedded in the automatic assembly template after processing, such as opening an installation groove at the corresponding position of the template, and the magnet is installed into the installation groove by interference fit, and the cutting equipment is a laser cutting machine.

[0042] It should be further explained that although this method uses many automatic assembly templates, they are manufactured by injection molding and are made of plastic, which is low in cost and easy to process. Moreover, they are packaged together with the product to ensure the product's strength, thereby ensuring quality. Furthermore, since the automatic assembly template provides a good reference for automatic assembly and serves to fix the parts, it completely replaces manual assembly. In addition, when using it, the user can directly remove the template from the assembled casing, which is also very convenient.

[0043] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for producing a metal fan casing, characterized in that: Includes the following steps; S1. Cutting: According to the design dimensions, aluminum alloy sheets are cut using cutting equipment to obtain blanks for each component of the cover. S2. Stamping: Distribute each blank to its respective forming equipment and form it using the corresponding forming mold. S3. Trimming and shaping: After stamping, remove excess material from the edges of the cover parts and shape and size according to design requirements. S4. Automatic assembly template processing: Automatic assembly templates made of plastic are processed by injection molding. The automatic assembly template includes a template body, a limiting structure for limiting the assembly position of each cover accessory, and a positioning device for positioning each accessory. S5. Automatic assembly: The automatic assembly template is transported sequentially to the waiting area of ​​each component according to the assembly order of the fan housing components by a multi-axis robot. The positioning device on the automatic assembly template fixes the corresponding housing components to the corresponding limiting structure until all the components of the entire housing are completely fixed on the automatic assembly template. Finally, the multi-axis robot transports the automatic assembly template to a riveting machine for assembly. The waiting area of ​​the housing components is also equipped with a workpiece support frame. A workpiece suction cup is rotatably mounted on the workpiece support frame. When the multi-axis robot moves to the waiting area, there is a preset angle between the workpiece suction cup and the workpiece support frame. S6. Packaging: Pack the assembled fan housing together with the automatic assembly template, and then transport it to the workpiece storage area.

2. The method for producing a metal fan housing as described in claim 1, characterized in that: It also includes a surface treatment step between step S3 and step S4, which performs anodizing on the processed housing parts, and controls the oxide film thickness between 2μm and 5μm.

3. The method for producing a metal fan housing as described in claim 1, characterized in that: In step S5, the waiting area of ​​the cover accessory is equipped with a detection mechanism to detect whether the cover accessory is installed at a preset position of the automatic assembly template.

4. The method for producing a metal fan housing as described in claim 3, characterized in that: The testing organization is a visual testing organization.

5. The method for producing a metal fan housing as described in claim 1, characterized in that: The multi-axis robotic arm is equipped with multiple negative pressure suction cups for picking up the automatic assembly template.

6. The method for producing a metal fan housing as described in claim 1, characterized in that: The limiting structure includes a limiting groove and / or a limiting baffle.

7. The method for producing a metal fan housing as described in claim 1, characterized in that: The positioning device is a magnet fixedly mounted on the automatic assembly template.

8. The method for producing a metal fan housing as described in claim 1, characterized in that: The cutting equipment is a laser cutting machine.

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