Method for adjusting eccentricity of optical component

Abstract

The invention provides a method for adjusting eccentricity of an optical component, and belongs to the technical field of eccentricity adjustment. The method comprises the following steps: step (1), designing a V-shaped groove and fixing the size; (2) two surfaces of the optical component are bonded, the back surface is attached to the back surface of the tool, and the front surface is attached to the ridge of the leaning body; (3) the attaching compactness of the optical component placed on the leaning body is confirmed by seeing the aperture on the back face, and the edge is sealed with glue; (4) after the corresponding V-shaped grooves are placed and fixed, the upper surfaces of the corresponding products are ground, and redundant parts are removed; and (5) processing according to the design size of the first surface, repeating the steps 2-4, and processing the other surface corresponding to the design size of the first surface. By controlling the size precision of the V groove, the principle that the product is naturally and vertically placed after being placed is achieved, corresponding equal-thickness position contact is naturally formed, and the equal-thickness size is also achieved at the parallel position for grinding the corresponding product size in a symmetrical mode.

Description

Technical Field

[0001] The invention relates to the technical field of eccentricity adjustment, and in particular to a method for adjusting the eccentricity of an optical component. Background Art

[0002] The current equipment and original parts have higher and higher requirements for optical components, and the requirements for component imaging are also getting higher and higher. The eccentricity of aspheric cylinders and cylindrical lenses and the distortion of products are getting higher and higher. The number of such demands is also increasing, and the price affects the number of company order demands. At present, the conventional aspheric cylinder / cylindrical eccentricity requirements are within 0.02mm, and the high-precision eccentricity must be within 0.005mm. The current processing method has a very low yield rate within the eccentricity requirement of 0.005mm, which affects the order price cost. The low eccentricity requirement has a great impact on the image quality of the component imaging, resulting in a shortage of products with high eccentricity requirements.

[0003] At present, the processing method for eccentricity and distortion is: gluing the upper plate or upper support body with glue, and using CNC equipment for curve simulation and reprocessing.

[0004] The impacts of these processing methods are: ① Gluing the upper plate or upper support body will result in insufficient product dimensional accuracy and poor side verticality, thus affecting the eccentricity and distortion effects: ② The skill of applying light glue to the plate or the body is long to learn, and the risk of debonding and plate falling due to the influence of hot and cold during processing is high. In addition, each plate needs to be tested with testing equipment to verify the effect of the plate, which is time-consuming and labor-intensive, and the possibility of mass production is extremely low; ③ When CNC equipment performs curve simulation, the center position of non-spherical products / cylindrical products is not necessarily consistent. Processing requires testing one by one, and the program needs to be constantly updated. There will be many adverse effects on efficiency and tool wear. These processing methods will always affect the processing efficiency and quality of some components, and have no competitive advantage in the current era of informatization and quality control. Summary of the invention

[0005] In view of this, in order to solve the technical problem in the prior art that the eccentricity requirement within 0.005mm has a very low yield, the present invention provides a method for adjusting the eccentricity of optical components. By controlling the V-groove size accuracy, the product can be placed naturally vertically (not only vertical placement but also other inclined placements are possible) to naturally form corresponding equal thickness position contacts, and the corresponding product size grinding is performed in a symmetrical manner. The parallel position of the grinding also achieves equal thickness size.

[0006] To achieve the above object, the present invention provides the following technical solutions: A method for adjusting eccentricity of an optical component comprises the following steps: Step (1), designing a V-groove and fixing the size, and finalizing the size of the V-groove by deepening the optical glue through the three components processed with high precision, so that the eccentricity of the optical components in the same batch can be controlled within 0.001 mm; Step (2), bonding the two surfaces of the optical component, with the back surface attached to the back surface of the tooling and the front surface attached to the ridge of the body; Step (3), confirm the compactness of the optical components placed on the body by looking at the aperture on the back, and seal the edges with glue; Step (4), after the corresponding V-groove is placed and fixed, the corresponding upper surface of the product is ground by disc forming to remove the excess part; Step (5), process the first surface according to the design size, and repeat steps 2-4 to process the other surface corresponding to the design size of the first surface; Step (6), after processing the two end sides of the optical component, the optical component can be removed and the corresponding detection method can be used for corresponding random inspection and confirmation.

[0007] Preferably, in step (4), the excess portion is removed by grinding or cutting.

[0008] Compared with the prior art, the present invention has the following beneficial effects: The method for adjusting the eccentricity of optical components provided by the present invention is that any eccentric product is adjusted according to the principle of central symmetry. The present invention, by designing a high-precision V-groove tooling, directly adopts a product limiting method to achieve product processing placement and parallel position after grinding to achieve equal thickness of products. According to the principle of product central symmetry, the equal thickness of the two ends can fully surface the consistency of the overall eccentric symmetrical position of the product, reducing the need for continuous centering test correction of previous products. The tooling directly realizes the limit tooling to achieve high-precision dimensional requirements and high-precision eccentricity requirements The present invention can ensure consistency during the process of mounting, does not require repeated measurements, and only needs to use the corresponding tooling body for mounting, which does not require high skills of personnel and can improve universality, thereby improving production output efficiency. The process is controllable, the yield rate is high, and the scope of application is wide. DETAILED DESCRIPTION

[0009] The technical solutions in the embodiments of the present invention will be described clearly and completely below; obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field without making creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0011] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0012] A method for adjusting eccentricity of an optical component comprises the following steps: Step (1), designing the V-groove and fixing the size. The size of the V-groove is determined by deepening the optical glue through the three components processed with high precision. The three components are made of high-precision window pieces. After the corresponding sizes are matched, they are combined together to form an integrated three-glued V-groove tooling. The V-groove size can control the eccentricity of the optical components in the same batch to within 0.001mm. The groove width of the V-groove tooling can be defined according to the size of the product. The thickness at the edge of the product is increased by 0.1mm and it can be used. The edge thickness of most products is within a certain range, so the thickness of the V-groove can be universal for most products. If the eccentricity only needs to be controlled within 0.005mm, the dimensional tolerance of the V-groove can be controlled within 0.0025mm. If the specifications of the finished product are small, the actual thickness tolerance of the V-groove can be controlled the same as the product. The overall processing difficulty will be simpler and faster than directly testing and repairing, and mass production can be easily achieved. Among them, the V-groove is a V-groove tooling composed of three high-precision window pieces, which are combined together through in-depth processing and corresponding size design.

[0013] The method of deepening optical bonding refers to molecular bonding. Specifically, it is a method of optical bonding that is carried out by coating the components, using a specific film system with a specific deepening temperature, and then using a glue-free method. The components are tightly combined together. The tooling combination carried out in this way can be regarded as a piece of organized material, which is not easily separated or damaged by other external forces.

[0014] Step (2), bonding the two surfaces of the optical component, the back side bonding is to bond one surface of the product to one surface of the V-groove, the product surface can be a bright surface or a frosted surface, and the other surface of the product, which is a non-spherical cylindrical surface, is bonded to the ridgeline of the other surface of the V-groove; Step (3), confirm the compactness of the optical components placed on the body by looking at the aperture on the back, and seal the edges with glue; Step (4), after the optical components are placed in the corresponding V-grooves and fixed (preferably fixed by a fixture), the corresponding upper surface of the product is ground by means of a disc, and the excess product is removed by grinding (removal of excess material is not limited to grinding and can be done by cutting or other methods, which can be selected according to actual needs); Step (5): Process the first surface according to the design dimensions, and repeat steps 2-4 to process the other surface to the design dimensions of the first surface.

[0015] Step (6), after processing the two end sides of the optical component, the optical component can be removed and the corresponding detection method can be used for corresponding random inspection and confirmation.

[0016] The above are only preferred specific implementations of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and improved concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A method for adjusting eccentricity of an optical component, characterized in that: The steps include: Step (1), designing a V-groove and fixing the size, and finalizing the size of the V-groove by deepening the optical glue through the three components processed with high precision, and the eccentricity of the optical components in the same batch can be controlled within 0.001 mm; Step (2), bonding the two surfaces of the optical component, with the back surface attached to the back surface of the tooling and the front surface attached to the ridge of the body; Step (3), confirm the compactness of the optical components placed on the body by looking at the aperture on the back, and seal the edges with glue; Step (4), after the corresponding V-groove is placed and fixed, the corresponding upper surface of the product is ground by disc forming to remove the excess part; Step (5), process the first surface according to the design size, and repeat steps 2-4 to process the other surface corresponding to the design size of the first surface; Step (6), after processing the two end sides of the optical component, the optical component can be removed and the corresponding detection method can be used for corresponding random inspection and confirmation.

2. A method for adjusting eccentricity of an optical component according to claim 1, characterized in that: In step (4), the excess portion is removed by grinding or cutting.