AR glasses leg composite forming device and process method

Abstract

According to the AR glasses leg composite forming device and the technological method, the advantages of a traditional pipe bending technology and liquid filling forming are fully combined, equipment special for glasses leg parts of this kind is designed, the whole technological process is optimized, the precision and the surface quality of final finished products can be effectively guaranteed, and the production efficiency is improved. And the manufacturing efficiency of the product can be remarkably improved, and the method is particularly suitable for machining AR glasses legs with complex structures.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of intelligent glasses manufacturing and processing, and particularly relates to an AR glasses leg composite forming device and process. BACKGROUND

[0002] With the development and popularization of AR intelligent glasses technology, new requirements are put forward for the man-machine efficiency, wearing comfort and the like of such glasses. Due to the large number of optical components and electronic elements contained in AR glasses, the weight is also significantly improved compared with ordinary glasses. Many products use titanium alloy materials in force-bearing parts such as the legs of the glasses and are manufactured through corresponding forming methods to ensure sufficient structural strength and durability of the glasses. However, there are still some defects in the forming process involved in the existing AR glasses leg forming based on titanium alloy materials. For example, the traditional pipe bending process is difficult to achieve high thinning requirements and is prone to cause damage to the pipe material. Although the liquid filling forming method can achieve better forming precision and product quality, there is still a lack of a complete set of equipment suitable for AR glasses leg processing, and the process flow needs to be optimized. SUMMARY

[0003] Therefore, in view of the technical problems existing in the prior art, the present application provides an AR glasses leg composite forming device, which specifically comprises:

[0004] a bottom plate, a fixed support, a gas cylinder, a forming die and a heating platform;

[0005] The heating platform is fixed to the AR glasses leg composite forming station, and the bottom plate is installed on the heating platform, on which the fixed support is arranged. The forming die and a pair of gas cylinders are arranged on the fixed support.

[0006] The forming die is composed of an upper die and a lower die, which contain a preforming position and a forming position for respectively placing the corresponding pipe material in the extrusion preforming and liquid filling forming processes. The pair of gas cylinders are oppositely arranged at the two ends of the forming position. The lower die and the upper die are oppositely provided with buffer die blocks and limiting blocks for limiting the position of the pipe material during extrusion preforming. The upper die is provided with lifting rings at both ends for moving and lifting the upper die.

[0007] The gas cylinder is provided with a sealing device for sealing the two ends of the pipe material and a high-pressure liquid connection valve connected with a hydraulic pump for filling high-pressure liquid into the sealed pipe material.

[0008] The heating platform is used to provide the corresponding forming temperature condition in the forming die during the extrusion preforming process.

[0009] Further, the AR glasses leg composite forming device also has a working control platform for automatically controlling the opening and closing of the forming die, the stroke of the gas cylinder and the sealing of the pipe material, the pressure of the hydraulic pump and the heating temperature of the heating platform.

[0010] Correspondingly, the application also provides an AR glasses leg composite forming process method realized by using the above device, specifically including the following steps:

[0011] S1, manufacturing a cylindrical straight pipe blank by using a drawing or a roll welding process according to a design size;

[0012] S2, placing the manufactured straight pipe blank into a pipe shrinking die to perform a pipe shrinking operation so that the straight pipe blank forms a corresponding local bending and shrinking shape according to a design requirement;

[0013] S3, cutting the pipe blank after the pipe shrinking, and then moving into a forming die which has been heated to a corresponding temperature;

[0014] S4, placing the pipe blank at a preforming position after closing the die, extruding the pipe blank to deform it, and cooling and opening the die after completing the preforming;

[0015] S5, placing the pipe blank at a forming position after closing the die, blocking the two ends of the pipe blank by driving a sealing device by a cylinder, opening a hydraulic pump and a high-pressure liquid connection valve to make high-pressure liquid enter the inner cavity of the pipe blank, and making the outer wall of the pipe blank completely fit the inner wall of the forming die under the joint action of internal hydraulic pressure and external die force;

[0016] S6, opening the die and taking out the glasses leg finished product after completing the liquid filling forming.

[0017] Further, after opening the die, the glasses leg is also subjected to related cutting, polishing and cleaning treatment.

[0018] Further, the pipe blank material for manufacturing the glasses leg is selected from any one of pure titanium, titanium alloy and aluminum alloy.

[0019] The AR glasses leg composite forming device and process method provided by the application fully combine the advantages of the traditional pipe bending process and the liquid filling forming, design a device specially used for such new type of glasses leg components and optimize the whole process flow, that is, can effectively guarantee the precision and surface quality of the final product, and can significantly improve the manufacturing efficiency of the product, especially suitable for processing AR glasses legs with complex structure. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structure schematic view of the AR glasses leg composite forming device provided by the application;

[0021] Figure 2 is a die closing and pipe material conversion process schematic view of the device provided by the application at a preforming and final forming position. DETAILED DESCRIPTION

[0022] The technical solutions of the present application will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0023] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" 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 elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0024] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. 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.

[0025] The AR glasses leg composite forming device provided by the present application, as shown in Figure 1 , 2 , specifically comprises:

[0026] a bottom plate 1, a fixed support 3, a gas cylinder 4, a forming die 9 and a heating platform;

[0027] The heating platform is fixed to the AR glasses leg composite forming station, the bottom plate 1 is installed on the heating platform, and the fixed support 3 is arranged thereon; the forming die 9 and a pair of gas cylinders 4 are arranged on the fixed support 3;

[0028] The forming die 9 is composed of an upper die and a lower die, which contains a preforming position 10 and a forming position 11, which are used to place the corresponding pipe materials in the extrusion preforming and liquid filling forming processes respectively; a pair of gas cylinders 4 are oppositely arranged at both ends of the forming position 11; the lower die and the upper die are oppositely provided with a die cushion block 6 for buffering, and a limiting block 8 for limiting the position of the pipe material during extrusion preforming; the upper die is provided with a lifting ring 2 at both ends, which is used to move and lift the upper die;

[0029] The gas cylinder 4 is provided with a sealing device 7 for sealing the two ends of the pipe material, and a high-pressure liquid connection valve 5 connected with a hydraulic pump, which is used to fill high-pressure liquid into the sealed pipe material;

[0030] The heating platform is used to provide corresponding forming temperature conditions in the forming die 9 during the extrusion preforming process.

[0031] In a preferred embodiment of the present application, the AR glasses leg composite forming device further has a working control platform for automatically controlling the opening and closing of the forming die 9, the stroke and pipe sealing of the cylinder 4, the pressure of the hydraulic pump, and the heating temperature of the heating platform.

[0032] Correspondingly, the AR glasses leg composite forming process provided by the present application specifically comprises the following steps:

[0033] S1, manufacturing a cylindrical straight pipe blank by drawing or roll welding according to the design size;

[0034] S2, placing the manufactured straight pipe blank into a pipe reducing die to perform pipe reducing operation to make the straight pipe blank form a corresponding local bending and contraction shape according to the design requirements;

[0035] S3, cutting the pipe blank after the pipe reducing, and then moving into the forming die 9 which has been heated to a corresponding temperature;

[0036] S4, placing the pipe blank in the preforming position 10 after closing the die, extruding the pipe blank to deform it; and cooling and opening the die after completing the preforming;

[0037] S5, placing the pipe blank in the forming position 11 after closing the die, blocking the two ends of the pipe blank by the cylinder driven sealing device 7, opening the hydraulic pump and the high-pressure liquid connection valve 5 to make the high-pressure liquid enter the inner cavity of the pipe blank, and making the outer wall of the pipe blank completely fit the inner wall of the forming die 9 under the joint action of the internal hydraulic pressure and the external die closing force;

[0038] S6, opening the die and taking out the glasses leg product after completing the liquid filling forming.

[0039] In a preferred embodiment of the present application, the glasses leg is further subjected to related cutting, polishing and cleaning treatment after opening the die.

[0040] In a preferred embodiment of the present application, the pipe blank material for manufacturing the glasses leg is selected from any one of pure titanium, titanium alloy and aluminum alloy.

[0041] It should be understood that the sequence of the steps in the embodiments of the present application does not mean the order of execution, and the execution order of the processes should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0042] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A composite forming device for AR glasses legs, characterized by: Specifically include: Base plate, fixing bracket, cylinder, forming die and heating platform; The heating platform is fixed to the composite forming station of the AR glasses legs, and the bottom is installed on the heating platform, on which a fixed bracket is provided; a forming mold and a pair of cylinders are provided on the fixed bracket; The forming die consists of an upper die and a lower die, which contain a pre-forming position and a forming position for placing the corresponding pipe during the extrusion pre-forming and liquid filling forming processes respectively; a pair of cylinders are arranged at both ends of the forming position; the lower die and the upper die are oppositely provided with a clamping pad for buffering, and a limit block for limiting the position of the pipe during extrusion pre-forming; and lifting rings are provided at both ends of the upper die for moving and lifting the upper die; The cylinder is provided with a sealing device for sealing both ends of the pipe, and a high-pressure liquid connecting valve connected to the hydraulic pump for filling the sealed pipe with high-pressure liquid; The heating platform is used to provide corresponding forming temperature conditions in the forming die during the extrusion preforming process.

2. The AR glasses leg composite forming device according to claim 1, characterized in that: The AR glasses leg composite forming device also has a working control platform for automatically controlling the opening and closing of the forming mold, the stroke of the cylinder and the sealing of the pipe, the pressure of the hydraulic pump and the heating temperature of the heating platform.

3. A composite forming process for AR glasses legs implemented using the device according to any one of claims 1 or 2, comprising the following steps: S1. According to the design size, cylindrical straight tube blanks are manufactured by drawing or coiling process; S2. Place the manufactured straight tube blank into a tube reduction mold and perform a tube reduction operation so that the straight tube blank forms a corresponding local bending and shrinking shape according to design requirements; S3, cutting the tube blank after shrinking, and then moving it into a forming mold that has been heated to a corresponding temperature; S4, placing the tube blank in the pre-forming position and closing the mold, squeezing the tube blank to deform it; cooling and opening the mold after the pre-forming is completed; S5. After placing the tube blank in the forming position, the mold is closed. The cylinder drives the sealing device to seal both ends of the tube blank. The hydraulic pump and the high-pressure liquid connecting valve are opened to allow high-pressure liquid to enter the inner cavity of the tube blank. Under the combined action of the internal hydraulic pressure and the external clamping force, the outer wall of the tube blank is completely fitted with the inner wall of the forming mold. S6. After the liquid filling and forming is completed, the mold is opened and the finished glasses legs are taken out.

4. The process according to claim 3, wherein: After the mold is opened, the legs of the glasses are also cut, polished and cleaned.

5. The process according to claim 3, wherein: The tube material used for manufacturing the glasses legs can be selected from any one of pure titanium, titanium alloy and aluminum alloy.

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