Processing technology of arbitrary-angle leaning body

Abstract

The application discloses a processing technology of an arbitrary-angle back body, which comprises the following steps: S1: firstly, a plurality of back body rough materials are pasted on a glass flat plate on one side by using glue, and then the other side is processed; S2: fine grinding, high polishing and low polishing are sequentially performed, so that the process aperture is controlled within 0.2-0.1 lambda, and the smoothness is controlled within the range of 20-10; S3: finally, the interference instrument is used to determine various indexes, and after the qualified back body is obtained, the wood hammer is used to knock the lower plate, the edge is inverted, and the acetone is used for cleaning; the technology can control the overall angle precision of the arbitrary-angle back body within 10'', and the one-time qualified rate can reach more than 90%, so that the qualified rate is high, the overall efficiency is high, the cost is low, and the processing time is short.

Description

Technical Field

[0001] This invention relates to the field of prism body processing technology, specifically a processing technology for a body with arbitrary angles. Background Technology

[0002] Prisms are commonly used optical components in optical systems. One of the basic functions of prisms is to efficiently internally reflect incident light by utilizing the critical angle characteristic. During the processing of prisms, it is necessary to grind and polish the surfaces of the blank. In the grinding and polishing process, the most commonly used tool is the support body. These support body toolings include rectangular support bodies, isosceles right-angled triangular prism support bodies, and support bodies at arbitrary angles, which are used in conjunction with circular glass trays.

[0003] Traditional machining processes for any angle body are complex, the angular accuracy can only be controlled within 30″, and the pass rate is only 50%. The remaining 50% need to be reworked, resulting in low efficiency, high cost, and long processing time. Summary of the Invention

[0004] The purpose of this invention is to provide a processing technology for a body at any angle, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a processing method for a support body at any angle, comprising preparing workpieces for processing: multiple square bricks, multiple support body blanks, an interferometer, a goniometer, a glass plate, and a support mold, including the following processing steps:

[0006] S1: First, glue one side of multiple rough materials to the glass plate, process the other side, and then perform fine grinding, high polishing, and low polishing in sequence to ensure that the process aperture is controlled within 0.2-0.1λ and the surface finish is controlled within the range of 20-10. Finally, use an interferometer to determine the various indicators. After passing the test, tap the bottom plate with a wooden hammer, bevel the edges, and clean with acetone.

[0007] S2: Wipe the sides of the processed raw material clean with wiping paper, wipe the two large surfaces of the square brick clean with wiping paper, and then use a template to apply the raw material sides to the large surfaces of the square brick. Apply two pieces of raw material to each large surface of the square brick.

[0008] S3: Apply the square bricks to the glass plate with adhesive to ensure that the square bricks are evenly and symmetrically arranged. One tray on this glass plate can process 40 pieces of raw material with right angles.

[0009] S4: Then proceed with fine grinding. Before fine grinding, ensure that the height of the four corners of the square brick is consistent. The rough material error after fine grinding should be within 0.001mm. If it exceeds the error, it must be polished again until it is qualified. If it is less than the error standard, the right-angle piece can only be scrapped.

[0010] S5: Then perform low polishing. Before low polishing, ensure that the height measurement error of the four corners of the square brick is "0". During the low polishing process, the process aperture is controlled within 0.2-0.1λ, and the smoothness is controlled within 40-20. After low polishing, use an interferometer to check that the number of interference fringes on the right-angled surface of the processed rough material is consistent with the number of interference fringes on the glass plate surface. If they are consistent, it is qualified. Then tap the lower plate with a wooden hammer, bevel the edges, and clean it with acetone.

[0011] S6: Prepare a standard sample support to assist in adjusting the goniometer. First, fix three small steel balls on the platform, then place the standard sample support on the steel balls, align the other side with the goniometer's optical tube, and adjust the value inside the goniometer to the standard value to inspect the processed raw material.

[0012] S6: Wipe the sides of the processed raw material clean with wiping paper, wipe the two large surfaces of the square brick clean with wiping paper, then apply a thin layer of olive oil to the two large surfaces of the square brick and the sides of the raw material. Wipe it evenly with clean wiping paper, and then apply the raw material side glue to the large surface of the square brick.

[0013] S7: Then place the small face of the square brick on the steel ball, align the right-angled face of the processed rough material with the light tube of the goniometer, visually check that the goniometer reading is at the "0" position, then prepare the scrap right-angled part, fix one right-angled face of the scrap right-angled part to the surface of the rough material with glue, and fix the other right-angled face to the surface of the square brick with glue. In this way, when processing the large face of the rough material again later, the rough material will not easily move against the support and fall off.

[0014] S8: When reprocessing the large surface of the raw material, the operation method is the same as step S5. Finally, the processed body at any angle is inspected.

[0015] Preferably, the template includes a base, on which a rectangular bottom plate is provided, and on which a positioning plate with an inclined surface is also provided, the rectangular bottom plate and the positioning plate being attached to each other.

[0016] Preferably, the dimensions of the square brick are 70×20×50mm, and the corners are 90° with an angle within ±5″.

[0017] Compared with the prior art, the beneficial effects of the present invention are: the process of the present invention can control the overall angular accuracy of the body at any angle within 10″, and the first-pass yield can reach more than 90%, with high yield, high overall efficiency, low cost and short processing time. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the template of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the template used in this invention;

[0020] Figure 3 This is a schematic diagram of the structure of the square brick and the rough material after gluing in this invention.

[0021] Figure 4 This is a schematic diagram of the structure of the square brick, raw material, and scrap right-angled parts after applying a smooth adhesive. Detailed Implementation

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

[0023] In the description of the invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of the invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the invention based on the specific circumstances.

[0025] Please see Figure 1-4 This invention provides a technical solution: a processing technology for a backrest with an arbitrary angle. To process a backrest with an angle of 31.5°±10″, the following workpieces are required: 10 square bricks 2 of 70×20×50mm, ensuring that their corners are 90° within ±5″; 40 pieces of backrest raw material with a size of 25×25×25mm; one interferometer; one goniometer; one glass plate with a diameter of 300mm and a thickness of 30mm; and a backrest mold 1.

[0026] In this embodiment, the template 1 includes a base 11, a rectangular base plate 12 is provided on the base 11, and a positioning plate 13 with an inclined surface is also provided on the base 11. The sides of the rectangular base plate 12 and the positioning plate 13 are attached to each other.

[0027] The method of using this template is as follows: First, place the square brick on the rectangular base plate, then take a piece of rough material, and attach its tangential surface to the inclined surface of the positioning plate 13, and attach the other side of the rough material to the large surface of the square brick, and then apply the gloss adhesive.

[0028] Then push the square brick forward to the appropriate position (as long as two rough pieces are evenly coated on each large surface of the square brick), then take another rough piece and apply the coating in the same way as described above.

[0029] After completion, flip the square brick over to apply a smoothing agent to the other large surface, following the same procedure as above.

[0030] In this embodiment, a processing technology for a body at any angle specifically includes the following processing steps:

[0031] S1: First, glue one side of multiple rough materials to the glass plate, process the other side, and then perform fine grinding, high polishing, and low polishing in sequence to ensure that the process aperture is controlled within 0.2-0.1λ and the surface finish is controlled within the range of 20-10. Finally, use an interferometer to determine the various indicators. After passing the test, tap the bottom plate with a wooden hammer, bevel the edges, and clean with acetone.

[0032] S2: Wipe the sides of the processed raw material clean with wiping paper, wipe the two large surfaces of the square brick clean with wiping paper, and then use a template to apply the raw material sides to the large surfaces of the square brick. Apply two pieces of raw material to each large surface of the square brick.

[0033] S3: Apply the square bricks to the glass plate with adhesive to ensure that the square bricks are evenly and symmetrically arranged. One tray on this glass plate can process 40 pieces of raw material with right angles.

[0034] S4: Then proceed with fine grinding. Before fine grinding, ensure that the height of the four corners of the square brick is consistent. The error of the rough material after fine grinding should be within 0.001mm. If it exceeds the error, it should be polished again until it is qualified.

[0035] S5: Then perform low polishing. Before low polishing, ensure that the height measurement error of the four corners of the square brick is "0". During the low polishing process, the process aperture is controlled within 0.2-0.1λ, and the smoothness is controlled within 40-20. After low polishing, use an interferometer to check that the number of interference fringes on the right-angled surface of the processed rough material is consistent with the number of interference fringes on the glass plate surface. If they are consistent, it is qualified. Then tap the lower plate with a wooden hammer, bevel the edges, and clean it with acetone.

[0036] S6: Prepare a standard sample body with a diameter of 31°33′20″ and adjust the goniometer to about 31.5°. Fix three small steel balls with a diameter of 3-5mm on the platform, then place the standard sample body on the steel balls. Align the other side with the goniometer tube and adjust the value inside the goniometer to 0 minus 3′20″ to inspect the processed raw material.

[0037] S6: Wipe the sides of the processed raw material clean with wiping paper, wipe the two large surfaces of the square brick clean with wiping paper, then apply a thin layer of olive oil to the two large surfaces of the square brick and the sides of the raw material. Wipe it evenly with clean wiping paper, and then apply the raw material side glue to the large surface of the square brick.

[0038] S7: Then place the small face of the square brick on the steel ball, align the right-angled face of the processed rough material with the light tube of the goniometer, visually check that the goniometer reading is at the "0" position, then prepare 40 scrap right-angled parts of about 20mm, fix one right-angled face of the scrap right-angled part to the surface of the rough material with glue, and fix the other right-angled face to the surface of the square brick with glue. In this way, when processing the large face of the rough material again, the rough material will not easily move and fall off the support. Similarly, 40 pieces can be processed from one tray.

[0039] S8: When reprocessing the large surface of the raw material, the operation method is the same as step S5. Finally, the processed body at any angle is inspected.

[0040] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A processing technology of arbitrary angle backrest, comprising a workpiece prepared for processing: a plurality of square bricks (2), a plurality of backrest blanks (3), an interferometer, an angle gauge, a glass flat plate, a backrest mold (1), characterized in that: The processing steps include: S1: first, the side of the plurality of body material is pasted on the glass flat plate with glue, the other side is processed, then fine grinding, high polishing, low polishing are carried out in turn, the process light circle is controlled in 0.2-0.1λ, the smoothness is controlled in the range of 20-10, finally, the interferometer is used to determine various indexes, and the lower plate is knocked with a wooden hammer after the qualified product is cleaned with acetone; S2: the processed material side is wiped clean with a wiping paper, the two large faces of the square brick are wiped clean with a wiping paper, then the material side is glued on the large face of the square brick by using a mold, two pieces of material are glued on each large face of the square brick; the mold (1) comprises a base (11), a rectangular bottom plate (12) is arranged on the base (11), a positioning plate (13) with an inclined surface is further arranged on the base (11), and the side edges of the rectangular bottom plate (12) and the positioning plate (13) are arranged in close contact; S3: the square brick is glued on the glass flat plate, and the square bricks are arranged uniformly and symmetrically, and 40 pieces of material right-angle faces can be processed on the glass flat plate; S4: then fine grinding is carried out, and the height of the four corners of the square brick should be consistent before fine grinding, and the error of the material after fine grinding should be within 0.001 mm, if the error exceeds, the material should be re-polished until it is qualified; S5: then low polishing is carried out, and the height of the four corners of the square brick should be measured to be "0" before low polishing, the process light circle is controlled within 0.2-0.1λ during low polishing, and the smoothness is controlled within 40-20, after low polishing, the interferometer is used to detect the number of interference fringes of the processed material right-angle face and the number of interference fringes of the glass flat plate surface, and if they are consistent, the material is qualified, then the lower plate is knocked with a wooden hammer, the edge is inverted, and the material is cleaned with acetone; S6: a standard angle sample body is prepared to assist the adjustment of the goniometer, three small steel balls are fixed on the platform, the standard sample body is placed on the steel balls, the other side is aligned with the light pipe of the goniometer, and the value in the goniometer is adjusted to the standard value, so that the processed material can be detected; S6: the processed material side is wiped clean with a wiping paper, the two large faces of the square brick are wiped clean with a wiping paper, then a thin layer of olive oil is applied on the two large faces of the square brick and the side of the material, and after the olive oil is evenly wiped clean, the side of the material is glued on the large face of the square body; S7: then the small face of the square brick is placed on the steel ball, the right-angle face of the processed material is aligned with the light pipe of the goniometer, and the value of the goniometer is observed to be at the "0" position, then a scrapped right-angle piece is prepared, one right-angle face of the scrapped right-angle piece is fixed on the surface of the material with glue, and the other right-angle face is fixed on the surface of the square brick with glue, so that the material is not easy to move and fall off when the large face of the material is processed again; S8: when the large face of the material is processed again, the operation mode is the same as that in step S5, and finally, the detection of the processed arbitrary angle body is carried out.

2. The process for machining an arbitrary angle body according to claim 1, characterized in that: The square brick (2) has the following requirements for the size: 70×20×50mm, and the angle of the corner is 90°±5".

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