Processing method of light guide rod with end face coated with film

Abstract

The invention provides a machining method of a light guide rod with a coated end face. The machining method comprises the steps that a first side face and a second side face which are adjacent to each other are polished; with the first side face and the second side face as the benchmark, the blank piece is fixed to an optical cement disc, and the two end faces of the blank piece are machined to obtain finished product end faces respectively; the two finished product end faces are coated to form coated finished product end faces, and end face protection pieces are arranged on the coated finished product end faces at the two ends; processing the third side surface to obtain a third finished product side surface and processing the first side surface to obtain a first finished product side surface; side surface protection pieces are arranged on the third finished product side surface and the first finished product side surface; and processing the fourth side surface to obtain a fourth finished product side surface and processing the second side surface to obtain a second finished product side surface. The problems that in the prior art, the machining cost of a light guide rod is too high, and efficiency is very low are solved.

Description

Technical Field

[0001] The present application relates to the technical field of light guide rod processing, and more specifically, to a method for processing a light guide rod with end surface coating. Background Art

[0002] End-coated light guide rods are commonly used optical components. Usually, light guide rods are rectangular, with four long sides and two end faces. The finished product needs to be coated on both end faces. In addition to ensuring the dimensions, it is also necessary to ensure that the coating will not be damaged and the edges cannot be chipped.

[0003] Therefore, the existing processing process flow of the optical waveguide rod with end-face coating is: first process the four long sides to the finished product size, and finally process the coated end face. Since the end face to be coated is processed last, it is necessary to ensure the perpendicularity with the side face when processing the end face to be coated. The verticality requirement is relatively high. When the processed side face is protected by a matching plate, since the side face is covered by the matching plate, an error of the matching plate parallelism is often introduced, resulting in inaccurate control and judgment of the verticality during the process. As a result, the perpendicularity between the end face and the side face is difficult to guarantee. Using existing processes to mass-produce optical waveguide rods will lead to problems such as excessive cost, low efficiency and low yield.

[0004] Therefore, the prior art still needs to be improved and developed. Summary of the invention

[0005] The purpose of the present application is to provide a method for processing an optical rod with end-face coating, which solves the problems in the prior art that the verticality between the end face and the side face of the optical rod is difficult to ensure, and mass production of optical rods will lead to excessive costs, low efficiency and low yield.

[0006] To achieve the above purpose, the technical solution adopted in this application is:

[0007] The present application provides a method for processing a light guide rod with end surface coating, comprising the steps of:

[0008] A blank is provided, and a first side surface and a second side surface adjacent to the blank are polished, wherein the right angle between the first side surface and the second side surface after polishing reaches a predetermined angle requirement, and the surface shape after polishing reaches a predetermined photoresist requirement;

[0009] With the first side surface and the second side surface as reference, the blank is fixed to the optical plastic disc, and two end surfaces of the blank are processed to obtain finished end surfaces respectively;

[0010] Coating the two finished end faces to form coated finished end faces, and providing end face protection parts on the coated finished end faces at both ends;

[0011] Laminating the polished first side surface onto a laminating plate, processing an opposite third side surface to obtain a third finished product side surface, laminating the third finished product side surface onto a laminating plate, and processing the first side surface to obtain a first finished product side surface;

[0012] Side protection members are respectively arranged on the side of the third finished product and the side of the first finished product;

[0013] The polished second side is laminated onto a laminate disc, the opposite fourth side is processed to obtain a fourth finished side, the fourth finished side is laminated onto a laminate disc, and the second side is processed to obtain a second finished side.

[0014] In an optional embodiment, in the step of providing a blank and polishing the adjacent first side surface and second side surface of the blank:

[0015] A predetermined thickness of blank allowance is left on each surface of the blank.

[0016] In an optional embodiment, the step of fixing the blank to the optical disk based on the first side surface and the second side surface, and processing the two end surfaces of the blank to obtain the finished end surfaces respectively includes:

[0017] Taking the polished first side surface as a reference, gluing the polished second side surface to the support body;

[0018] Put the body polishing glue onto the polishing glue disk and process the two end faces of the blank into a disk.

[0019] In an optional embodiment, after the step of laminating the polished second side surface to the support body based on the polished first side surface, the step further includes:

[0020] Detect and adjust the upper plate angle of the first side surface to ensure that the blank reaches a predetermined alignment state.

[0021] In an optional embodiment, in the step of coating two finished end faces to form coated finished end faces, and providing end face protection members on the coated finished end faces at both ends:

[0022] End face protection parts are bonded to the end faces of the finished coated products at both ends, wherein the thickness of the bonding layer and the bonding angle of the end face protection parts are controlled to meet predetermined requirements.

[0023] In an optional embodiment, in the steps of laminating the polished first side surface onto a laminating plate, processing an opposite third side surface to obtain a third finished side surface, laminating the third finished side surface onto a laminating plate, and processing the first side surface to obtain a first finished side surface:

[0024] Processing a predetermined thickness on the third side surface, removing the chamfers and broken edges between the third side surface and the end surfaces of the finished coating products at both ends;

[0025] The first side surface is processed to a predetermined thickness, and the chamfers and broken edges between the first side surface and the end surfaces of the finished coating products at both ends are removed.

[0026] In an optional embodiment, in the steps of laminating the polished second side onto a laminating plate, processing the opposite fourth side to obtain a fourth finished side, laminating the fourth finished side onto a laminating plate, and processing the second side to obtain a second finished side:

[0027] Processing a predetermined thickness on the fourth side surface, removing the chamfers and broken edges between the fourth side surface and the end surfaces of the coated finished products at both ends, and removing the chamfers and broken edges between the fourth side surface and the first finished product side surface and the third finished product side surface respectively;

[0028] The second side surface is processed to a predetermined thickness, and the chamfers and broken edges between the second side surface and the end surfaces of the coated finished products at both ends are removed, and the chamfers and broken edges between the second side surface and the first finished product side surface and the third finished product side surface are removed.

[0029] In an optional embodiment, in the step of respectively providing side protection members on the side of the third finished product and the side of the first finished product:

[0030] Side protection pieces are respectively bonded to the third finished product side surface and the first finished product side surface on both sides.

[0031] In an optional embodiment, the end face protection piece and the side face protection piece are both glass plates.

[0032] In an optional embodiment, after laminating the polished second side to a laminating plate, processing the opposite fourth side to obtain a fourth finished side, laminating the fourth finished side to the laminating plate, and processing the second side to obtain a second finished side, the step further includes:

[0033] The end face protection member is removed from the end face of the coated finished product by heating and soaking, and the side face protection member is removed from the first finished product side face and the third finished product side face respectively.

[0034] The beneficial effect of the processing method of the optical rod with end-face coating provided by the present application is at least that: firstly, the adjacent first side surface and the second side surface are polished to ensure the verticality of the two, and then the end surface of the optical rod is processed as a reference, which can well ensure the verticality of the finished product end surface and the long side surface used as a reference. After coating the finished product end surface and bonding the end face protection part, the shape is processed with the first side surface and the second side surface that ensure the verticality as the reference, which not only greatly reduces the problem of chipping and scrapping during coating, but also uses the polished long side surface as the processing reference after ensuring the basic angle, which reduces the requirements for the matching plate, eliminates the influence of the matching plate quality on the parts, saves processing costs and improves processing efficiency, so that the mass production of optical rod products can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 A schematic flow chart of the main steps of a method for processing a light guide rod with end surface coating provided in an embodiment of the present application;

[0037] Figure 2 A schematic flow chart of detailed steps of a method for processing a light guide rod with end surface coating provided in an embodiment of the present application;

[0038] Figure 3 A schematic structural diagram of a blank in a perspective state in a method for processing a light guide rod with end surface coating provided in an embodiment of the present application;

[0039] Figure 4 A schematic structural diagram of a method for processing a light guide rod with end surface coating provided in an embodiment of the present application when processing an end surface;

[0040] Figure 5 A schematic structural diagram of a method for processing a light guide rod with end surface coating provided in an embodiment of the present application when processing a first side surface and a third side surface;

[0041] Figure 6 A schematic structural diagram of the processing of the second side surface and the fourth side surface in a method for processing an end-face coated optical waveguide rod provided in an embodiment of the present application.

[0042] Among them, the reference numerals in the figure are:

[0043] 100, blank; 110, first side; 120, second side; 130, third side; 140, fourth side; 150, end face; 200, finished end face of coated product; 210, first finished side; 220, third finished side; 300, end face protection part; 400, side protection part; 500, backrest. DETAILED DESCRIPTION

[0044] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0045] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly or indirectly located on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the accompanying drawings and are only for the convenience of description and cannot be understood as limitations on the present technical solution. The terms "first" and "second" are only used for the convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0046] The following is an explanation of the names involved in this application, as follows:

[0047] Polishing: Polishing is a process that relies on the attraction between molecules to make two surfaces tightly bonded together. The attraction between molecules on the surface is a statistical physical phenomenon. It does not work on the entire polishing surface, but works between the microscopic peaks or troughs of the two surfaces. Since the peaks and troughs are small and dense, the statistical area that produces molecular attraction is quite large, enough to make the two surfaces polished together. In addition, the polishing is to apply pressure to the edge of the polished part first, so that this part is polished first. In the area near the interface of the polished and unpolished surfaces, deformation occurs due to the molecular attraction, causing the unpolished surfaces in contact with each other to reach the range of molecular attraction, so that the polishing bonding surface gradually expands until the entire bonding surface is polished together. Compared with the adhesive layer bonding, the polishing has higher mechanical strength and stable performance, which can be maintained for decades; small deformation, good cold resistance and heat resistance. Optical bonding can be used to bond parts that will deform on the surface during bonding, or parts that will debond due to their large dimensions, or parts that work under high or low temperature conditions, or parts that work in the short-wave part of optical harmonics (current optical glue has a large light energy loss at short wavelengths), etc. The optical bonding process also requires high manufacturing precision of the optical bonding surface.

[0048] Optical disc: A flat disc tooling used when optical disc is used for disc processing. It is generally circular, and the parallelism of a single optical disc is ≤2″. The working surface shape PV ≤0.5fr@633nm (Φ150per). Surface shape: PV (Peak to valley), also known as peak to valley value, is a common indicator of optical surface shape quality. It refers to the height difference between the highest point and the lowest point within the sampling range (based on 2D contour lines or 3D data maps) after removing the reference surface. The PV value is in physical length units, and its meaning is easy to understand. Based on the required reference surface, the maximum deviation range of all pixels directly reflects the current processing quality of the optical surface. According to the experience of long-term optical testing in the past, the PV value and another important surface shape indicator RMS often maintain a certain proportional relationship, generally around 2:1.

[0049] In the prior art, the four long side faces are first processed to the finished product size, and then the coated end face is processed. In this process, a matching disc is needed to process the coated end face. Since the long side faces have been processed to form the finished product side faces, the optical glue matching disc on them has strict surface shape, smoothness, and parallelism requirements. Processing a suitable matching disc is usually more difficult than processing the optical guide rod itself. Moreover, the optical glue matching disc requires the parts and the matching disc to match the surface shape. If the optical glue is not tight, it is easy to fall off during the processing. If the optical glue is too tight, it will be time-consuming and laborious to remove the strips. In addition, when processing the perpendicularity between the coated end face and the side face, the existing process needs to process the optical glue on the matching disc, which will introduce errors in the parallelism of the matching disc, resulting in inaccurate control and judgment of the perpendicularity between the end face and the side face during the process. Therefore, the specific embodiments proposed in this application are as follows:

[0050] See also Figure 1 This embodiment provides a method for processing a light guide rod with a coated end surface, which is used for optical processing of the light guide rod. The method for processing a light guide rod with a coated end surface mainly includes the following steps:

[0051] Step S100, providing a blank, and polishing the adjacent first side surface and second side surface of the blank, wherein the right angle between the first side surface and the second side surface after polishing reaches a predetermined angle requirement, and the surface shape after polishing reaches a predetermined photoresist requirement.

[0052] See also Figure 3In the specific process, the blank 100 matches the outer contour of the final light guide rod product, so the blank 100 is a hexahedron, which can be a cuboid or a cube. The blank 100 of this embodiment is a cuboid, having: a first side surface 110 and a third side surface 130 set opposite to each other, a second side surface 120 and a fourth side surface 140 set opposite to each other, and two end surfaces 150 set opposite to each other. These surfaces are initial surface shapes in the blank stage. Since the parts produced in the subsequent processing process are all produced on the basis of the blank, the structures of the various surfaces on the parts are described with reference to the various surfaces of the blank.

[0053] Compared with the finished light guide rod, each surface of the blank 100 has a blank margin of a predetermined thickness. Due to the coating clamping requirements, the processing margin of each surface needs to be at least 2 mm, so as to ensure that there is enough margin to process the first side surface 110, the second side surface 120, the third side surface 130 and the fourth side surface 140 after coating.

[0054] The adjacent first side surface 110 and second side surface 120 of the blank 100 are polished, mainly to make the right angle between the first side surface 110 and the second side surface 120 after polishing meet the predetermined angle requirement, and the surface shape after polishing meets the predetermined light glue requirement. Since light glue fixation is required in the subsequent processing process, one long side surface and the adjacent long side surface are polished first to ensure that the surface shape and the 90° angle between the two meet the requirements. Under the condition of ensuring the angle, the first side surface 110 and the second side surface 120 can be used as the reference for processing the subsequent surfaces. In this way, the processing reference is unified, especially after the basic angle between the first side surface 110 and the second side surface 120 is made, the end surface 150 to be coated can be directly light glued to the tooling to process, eliminating the influence of the matching plate quality on the parts.

[0055] Step S200: fix the blank onto the optical disk with the first side surface and the second side surface as reference, and process the two end surfaces of the blank to obtain finished end surfaces.

[0056] See also Figure 3 , Figure 4 In the specific process, since the basic angle between the first side surface 110 and the second side surface 120 is guaranteed by the above-mentioned polishing process, one of the side surfaces is fixed with light glue, and the two end surfaces 150 of the blank 100 are processed into a disk, and directly processed into a finished end surface. Compared with the end surface processed last in the prior art, since the side surfaces are not processed in place, it is not necessary to use a high-quality matching disk and the side surfaces for light glue. The end surfaces 150 on both sides are directly processed to form the finished end surface, eliminating the influence of the matching disk quality on the parts.

[0057] See also Figure 1 , Figure 2Therefore, step S200 specifically includes steps S210 to S220, which are as follows:

[0058] Step S210: Taking the polished first side surface as a reference, photo-bonding the polished second side surface to the support body.

[0059] See also Figure 4 The first side surface 110 and the second side surface 120 are two adjacent side surfaces, one of which is used as a clamping reference for alignment, and the other side surface is used as a fixing surface to be fixed to the support body 500 by optical glue. The support body 500 can be made of square bricks. The square bricks can support the blank 100, so that the end surfaces 150 at both ends of the blank 100 are respectively in the processing position for easy processing.

[0060] After the blank 100 is fixed to the backing body 500 by light glue, the upper plate angle of the first side surface 110 is detected and adjusted to ensure that the blank 100 reaches the predetermined straightening state. Specifically, after the second side surface 120 is fixed to the square brick by light glue, before the backing body 500 is fixed to the light glue plate by light glue, the upper plate angle of the first side surface 110 is observed by a comparator, and if the upper plate angle exceeds the predetermined range, it is adjusted to ensure that the blank 100 is straightened.

[0061] Step S220, apply the body-supporting photoresist to the photoresist disk, and process the two end surfaces of the blank into a disk.

[0062] See also Figure 4 In the specific process, when the upper plate angle of the first side surface 110 is detected to be qualified, the support body 500 is fixed to the optical resin disk, and the blank 100 is fixed to the large disk (optical resin disk) of the processing equipment through the support body 500. The two end faces 150 of the blank 100 are processed into disks, and the end faces 150 are directly processed to the desired size to form finished end faces at both ends.

[0063] See also Figure 1 , step S300, coating the two finished end faces to form coated finished end faces, and setting end face protection parts on the coated finished end faces at both ends.

[0064] See also Figure 3 , Figure 5 In the specific process, glue is used to bond the end face protection parts 300 on the finished coated end faces 200 at both ends, and the glue can be NOA65 glue. The thickness of the adhesive layer and the bonding angle of the end face protection part 300 are controlled to meet the predetermined requirements. By controlling the thickness of the adhesive layer and the bonding angle of the end face protection part 300, the finished coated end face 200 can be protected from being damaged during the processing. When processing the four side faces, the end face protection part 300 participates in the processing of the side faces to ensure that no edge collapse occurs when the parts are not chamfered.

[0065] The end face protection member 300 of this embodiment is a glass plate, and ordinary glass plates can meet the use requirements. However, in the prior art, quartz plates are usually required for light bonding. Therefore, ordinary glass plates are usually bonded instead of light bonding quartz plates, eliminating the requirements for plate materials, smoothness, and surface shape, and reducing material costs.

[0066] In addition, the prior art uses a method of glossing the plate, which requires the parts and the plate to match the surface shape. If the glossing is not tight, it is easy to fall off during processing. If the glossing is too tight, it will be time-consuming and laborious to remove the strips. However, the bonded glass plate in this embodiment is easy to remove, and the overall processing efficiency and turnover efficiency are improved.

[0067] Step S400, laminating the polished first side onto the laminating plate, processing the opposite third side to obtain a third finished side, laminating the third finished side onto the laminating plate, and processing the first side to obtain a first finished side.

[0068] See also Figure 3 , Figure 5 , fix the first side surface 110 with optical glue, process the third side surface 130 into a disk, process the third side surface 130 to a predetermined thickness, and remove the chamfers and broken edges between the third side surface 130 and the finished coated end surfaces 200 at both ends. Fix the processed third side surface 130 with optical glue, process the first side surface 110 into a disk, process the first side surface 110 to a predetermined thickness, and remove the chamfers and broken edges between the first side surface 110 and the finished coated end surfaces 200 at both ends. Since sufficient processing allowances are left on both the first side surface 110 and the third side surface 130, the above-mentioned chamfers and broken edges can be completely removed after the part is processed to the finished size in this direction.

[0069] Step S500: Dispose side protection pieces on the side of the third finished product and the side of the first finished product respectively.

[0070] See also Figure 3 , Figure 6 In the specific process, the side protection parts 400 are respectively bonded to the third finished product side 220 and the first finished product side 210 on both sides by glue. The side protection parts 400 are glass matching trays. They can protect the processed first finished product side 210 and the third finished product side 220 from being damaged during the subsequent processing. When processing the other two sides, the side protection parts 400 ensure that the parts do not have broken edges when they are not chamfered. In addition, the bonded glass matching trays are easy to remove, and the overall processing efficiency and turnover efficiency are improved.

[0071] In addition, the end face protection member and the side protection member serve as a matching plate and mainly play a protective role, so the thickness of the matching plate can be relatively thin.

[0072] Step S600, laminating the polished second side onto the laminating plate, processing the opposite fourth side to obtain a fourth finished side, laminating the fourth finished side onto the laminating plate, and processing the second side to obtain a second finished side.

[0073] See also Figure 3 , Figure 6 In the specific process, the second side surface 120 is fixed with optical glue, the fourth side surface 140 is processed into a disk, a predetermined thickness is processed on the fourth side surface 140, the chamfers and broken edges between the fourth side surface 140 and the finished coated end surfaces 200 at both ends are removed, and the chamfers and broken edges between the fourth side surface 140 and the first finished side surface 210 and the third finished side surface 220 are removed. The processed fourth side surface 140 is fixed with optical glue, the second side surface 120 is processed into a disk, a predetermined thickness is processed on the second side surface 120, the chamfers and broken edges between the second side surface 120 and the finished coated end surfaces 200 at both ends are removed, and the chamfers and broken edges between the second side surface 120 and the first finished side surface 210 and the third finished side surface 220 are removed. Similarly, since sufficient processing allowances are left on both the second side surface 120 and the fourth side surface 140, the above-mentioned chamfers and broken edges can be completely removed after the part is processed into the finished size in this direction.

[0074] By adopting the above method of the present embodiment, after ensuring the verticality between the two adjacent side surfaces, the end surface 150 to be coated can be directly processed on the tooling by photo-gluing. During the processing of the end surface 150, the side surface does not need to be protected by the matching plate, thereby eliminating the influence of the matching plate quality on the part. After coating, the processed surface is protected by bonding the matching plate, and the part can be directly processed on the photo-gluing reference surface. Due to the large excess of the blank, smaller chipped edges on the part can be processed, thereby improving material utilization and reducing the risk of product scrapping.

[0075] Firstly, two adjacent side faces are roughly machined, and then two end faces 150 are machined based on this. After coating, the outer shape is processed after bonding the matching disk. This not only greatly reduces the problem of chipping and scrapping during coating, but also reduces the requirements for matching disks, saves processing costs and improves processing efficiency, so that mass production of optical guide rod products can be realized.

[0076] Step 700: Remove the end face protection member from the end face of the coated finished product by heating and soaking, and remove the side protection member from the first finished product side and the third finished product side respectively.

[0077] In the specific process, heating and solution immersion can be used to quickly and safely remove the glue. Compared with the existing process where it is difficult to remove the glue when the surface matching degree of the parts and the matching disk is very high, this method can achieve rapid removal of the glue and complete the processing of the cylindrical parts, meeting the optical index requirements of the product.

[0078] In summary, the present application provides a method for processing an optical rod with a coated end face, which uses existing cold processing equipment to process the optical rod by means of bonding a matching plate, and meets the requirements of the optical index of the product. By bonding an ordinary glass matching plate instead of an optical glue quartz matching plate, the requirements for the matching plate material, finish, and surface shape are eliminated, thereby reducing the material cost. The original optical glue matching plate process is not suitable for the production of large quantities of parts, but this method greatly reduces the difficulty of operation and provides the possibility for the production of large quantities of parts. The glue can be removed quickly and safely to complete the processing of cylindrical parts and meet the requirements of the optical index of the product.

[0079] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A method for processing a light guide rod with end surface coating, characterized in that: Includes steps: Providing a blank, and polishing a first side surface and a second side surface adjacent to the blank, wherein the right angle between the first side surface and the second side surface after polishing reaches a predetermined angle requirement, and the surface shape after polishing reaches a predetermined photoresist requirement; Using the first side surface and the second side surface as reference, fixing the blank to a photoresist disk, and processing two end surfaces of the blank to obtain finished end surfaces respectively; Coating the two finished end faces to form coated finished end faces, and providing end face protection members on the coated finished end faces at both ends; Laminating the polished first side surface onto a laminating plate, processing an opposite third side surface to obtain a third finished side surface, laminating the third finished side surface onto a laminating plate, and processing the first side surface to obtain a first finished side surface; Side protection pieces are respectively provided on the side of the third finished product and the side of the first finished product; The polished second side is laminated onto a laminate disc, the opposite fourth side is processed to obtain a fourth finished side, the fourth finished side is laminated onto a laminate disc, and the second side is processed to obtain a second finished side.

2. The method for processing a light guide rod with end surface coating according to claim 1, characterized in that: In the step of providing a blank and polishing the adjacent first side surface and second side surface of the blank: A blank margin of a predetermined thickness is reserved on each surface of the blank.

3. The method for processing a light guide rod with end surface coating as claimed in claim 2, characterized in that: The steps of fixing the blank to the optical disk based on the first side surface and the second side surface, and processing the two end surfaces of the blank to obtain finished end surfaces respectively include: Taking the polished first side surface as a reference, gluing the polished second side surface to the support body; The body-supporting optical glue is applied to an optical glue disk, and the two end faces of the blank are processed into a disk.

4. The method for processing a light guide rod with end surface coating as claimed in claim 3, characterized in that: After the step of laminating the polished second side surface to the support body based on the polished first side surface, the step further includes: Detect and adjust the upper plate angle of the first side surface to ensure that the blank reaches a predetermined alignment state.

5. The method for processing a light guide rod with end surface coating as claimed in claim 3, characterized in that: In the step of coating the two finished end faces to form coated finished end faces, and providing end face protection members on the coated finished end faces at both ends: End face protection parts are bonded to the end faces of the finished coated products at both ends, wherein the thickness of the bonding layer and the bonding angle of the end face protection parts are controlled to meet predetermined requirements.

6. The method for processing a light guide rod with end surface coating according to claim 5, characterized in that: In the step of laminating the polished first side surface onto a laminating plate, processing an opposite third side surface to obtain a third finished side surface, laminating the third finished side surface onto a laminating plate, and processing the first side surface to obtain a first finished side surface: Processing a predetermined thickness on the third side surface, removing the chamfers and broken edges between the third side surface and the end surfaces of the finished coating product at both ends; A predetermined thickness is machined on the first side surface, and chamfers and chipped edges between the first side surface and the end surfaces of the finished coating product at both ends are removed.

7. The method for processing a light guide rod with end surface coating according to claim 6, characterized in that: In the step of laminating the polished second side surface onto a laminating plate, processing the opposite fourth side surface to obtain a fourth finished side surface, laminating the fourth finished side surface onto a laminating plate, and processing the second side surface to obtain a second finished side surface: Processing a predetermined thickness on the fourth side surface, removing the chamfers and broken edges between the fourth side surface and the end surfaces of the coated finished product at both ends, and removing the chamfers and broken edges between the fourth side surface and the first finished product side surface and the third finished product side surface respectively; A predetermined thickness is machined on the second side surface, and chamfers and chipped edges are removed between the second side surface and the end surfaces of the coated finished products at both ends, and chamfers and chipped edges are removed between the second side surface and the first finished product side surface and the third finished product side surface.

8. The method for processing a light guide rod with end surface coating according to claim 6, characterized in that: In the step of respectively providing side protection members on the third finished product side and the first finished product side: Side protection pieces are respectively bonded to the third finished product side surfaces and the first finished product side surfaces on both sides.

9. The method for processing a light guide rod with end surface coating according to claim 8, characterized in that: The end face protection piece and the side protection piece are both glass plates.

10. The method for processing a light guide rod with end surface coating according to any one of claims 1 to 9, characterized in that: After the steps of laminating the polished second side surface onto a laminating plate, processing the opposite fourth side surface to obtain a fourth finished side surface, laminating the fourth finished side surface onto a laminating plate, and processing the second side surface to obtain a second finished side surface, the step further includes: The end face protection member is removed from the end face of the coated finished product by heating and soaking, and the side protection member is removed from the first finished product side and the third finished product side respectively.

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