Optical fiber laser end cap machining tool

Abstract

The utility model belongs to the technical field of laser processing, and particularly discloses an optical fiber laser end cap processing tool which comprises a disc body, the disc body is provided with array function round holes penetrating through two faces in the axial direction, and the array function round holes are sequentially provided with a plurality of round hole sets from the middle to the outer edge of the disc body. The round hole groups are sequentially a first round hole group, a second round hole group, a third round hole group, a fourth round hole group and a fifth round hole group from inside to outside, the first round hole group is provided with one round hole, the second round hole group is provided with 6 round holes, the third round hole group is provided with 12 round holes, the fourth round hole group is provided with 18 round holes, and the fifth round hole group is provided with 24 round holes.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of laser processing technology, especially relates to the processing frock of fiber laser end cap. BACKGROUND

[0002] High-energy lasers are increasingly widely used in industries, medical treatment and scientific research and other fields. However, the existing fiber end cap materials have problems such as high absorption rate and poor thermal stability in high-energy laser transmission process, which limits the further improvement of the performance of the laser. The fiber end caps on the market mainly adopt traditional quartz glass or plastic materials, and these materials are easily damaged in a high-energy laser environment and cannot meet the requirements of high power and high stability. Since calcium fluoride crystal belongs to soft and brittle crystal materials, it cannot be processed by molding technology, and only traditional grinding processing can be used. Moreover, since the sizes of the two ends of the fiber end cap are quite different, it is impossible to paste and fix them by general methods when polishing the two end faces, therefore, a frock specially used for high-precision calcium fluoride end cap processing is designed. SUMMARY

[0003] In order to solve the above problems, the utility model adopts the following technical scheme:

[0004] The fiber laser end cap processing frock includes a disc body, the disc body is provided with array function circular holes penetrating two surfaces along the axial direction,

[0005] The array function circular holes have a plurality of circular hole groups from the middle part of the disc body to the outer edge part, and the circular hole groups from the inside to the outside are the first circular hole group, the second circular hole group, the third circular hole group, the fourth circular hole group and the fifth circular hole group,

[0006] The first circular hole group has one circular hole, the second circular hole group has six circular holes, the third circular hole group has twelve circular holes, the fourth circular hole group has eighteen circular holes, and the fifth circular hole group has twenty-four circular holes.

[0007] In some modes, the second circular hole group measures an outer diameter of 20mm, the third circular hole group measures an outer diameter of 40mm, the fourth circular hole group measures an outer diameter of 60mm, and the fifth circular hole group measures an outer diameter of 80mm.

[0008] In some modes, the plurality of circular holes in the same circular hole group are equidistantly distributed.

[0009] In some modes, the inner diameter of any circular hole is 5mm.

[0010] In some modes, the connecting line of at least one circular hole in any circular hole group and at least one circular hole in each of the other circular hole groups is a straight line.

[0011] In some modes, the thickness of the disc body is 10mm.

[0012] In some embodiments, the disc K9 glass or quartz glass material.

[0013] The fiber laser end cap has a pointed end; the material of the fiber laser end cap is calcium fluoride crystal.

[0014] In some embodiments, the body of the fiber laser end cap is a cylinder, the pointed end is a circular truncated cone, and the pointed end is located at one end of the body.

[0015] In the present disclosure, the pointed end of the fiber end cap is placed in the circular hole of the glass disc, and the step of the end cap is uniformly bonded together with the glass disc, which can protect the flatness and surface finish of the end cap pointed end, and greatly reduce the influence of the soft and brittle characteristics of calcium fluoride on product quality. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a processing tool structure diagram;

[0017] Figure 2 is Figure 1 is a processing tool sectional view shown in the figure;

[0018] Figure 3 is a fiber laser end cap processing state diagram;

[0019] Figure 4 is a fiber laser end cap structure diagram;

[0020] Figure 5 is a processing tool three-dimensional structure diagram. DETAILED DESCRIPTION

[0021] The present utility model will be further described below in combination with the drawings.

[0022] The fiber laser end cap processing tool comprises a disc body 100, the disc body 100 is provided with array function circular holes 200 penetrating two surfaces in the axial direction,

[0023] The array function circular holes 200 have a plurality of circular hole groups from the middle part to the outer edge part of the disc body 100, and the circular hole groups from the inside to the outside are sequentially the first circular hole group 210, the second circular hole group 220, the third circular hole group 230, the fourth circular hole group 240 and the fifth circular hole group 250, and although the outer layer is not involved for the time being, it is not excluded from the scope of the present utility model,

[0024] The first circular hole group 210 has one circular hole, the second circular hole group 220 has six circular holes, the third circular hole group 230 has twelve circular holes, the fourth circular hole group 240 has eighteen circular holes, and the fifth circular hole group 250 has twenty-four circular holes. When processing, the edge of each part needs to be chamfered.

[0025] In some modes, the second circular hole group 220 has a 20mm metering outer diameter, the third circular hole group 230 has a 40mm metering outer diameter, the fourth circular hole group 240 has a 60mm metering outer diameter, and the fifth circular hole group 250 has an 80mm metering outer diameter. The metering outer diameter is the diameter of a circle in which the center of the circular hole is located.

[0026] In some modes, the several circular holes in the same circular hole group are equidistantly distributed.

[0027] In some modes, the inner diameter of any circular hole is 5mm.

[0028] In some modes, the line connecting at least one circular hole in any circular hole group and at least one circular hole in each of the other circular hole groups is a straight line.

[0029] In some modes, the thickness of the disc body 100 is 10mm.

[0030] In some modes, the disc body 100 is made of K9 glass or quartz glass.

[0031] The above-mentioned dimensions can have certain errors and do not have to be strictly consistent.

[0032] The fiber laser end cap has a pointed end and is a solid optical element with polished ends. The fiber laser end cap is made of calcium fluoride crystal.

[0033] In some modes, the body of the fiber laser end cap is a cylinder, the pointed end is a circular truncated cone, and the pointed end is located at one end of the body.

[0034] High-purity calcium fluoride crystal is used as the main material, which has excellent optical properties and thermal stability. A special tooling is designed for precise machining of calcium fluoride crystal to ensure the flatness and surface finish of the end cap.

[0035] The tooling is a K9 glass or quartz glass disc. A series of uniform arrayed circular holes are cut on the surface of the glass disc using laser cutting. The inner wall of the circular hole is smooth. During machining, the pointed end of the fiber laser end cap is placed in the circular hole of the glass disc, and the step of the end cap is uniformly bonded together with the glass disc. After being arranged in order, polishing is performed to ensure that the stress area of the end cap falls on the glass disc surface rather than the pointed end of the end cap, thereby protecting the flatness and surface finish of the pointed end of the end cap and greatly reducing the influence of the soft and brittle characteristics of calcium fluoride on product quality.

[0036] Those skilled in the art can clearly make various modifications to the above embodiments without departing from the overall spirit and concept of the present application. All of them fall within the protection scope of the present application. The protection scheme of the present application is subject to the claims attached to the present application.

Claims

1. A fiber laser end cap machining tooling fixture, characterized by, It comprises a disc body (100) which is provided with an array of functional circular holes (200) through both sides in the axial direction, The array of functional circular holes (200) has several circular hole groups from the middle to the outer edge of the disc body (100), and each circular hole group from the inside to the outside is the first circular hole group (210), the second circular hole group (220), the third circular hole group (230), the fourth circular hole group (240), and the fifth circular hole group (250). The first circular hole group (210) has 1 circular hole, the second circular hole group (220) has 6 circular holes, the third circular hole group (230) has 12 circular holes, the fourth circular hole group (240) has 18 circular holes, and the fifth circular hole group (250) has 24 circular holes.

2. The fiber laser end cap machining tooling fixture of claim 1, wherein, The second circular hole group (220) has a measured outer diameter of 20 mm, the third circular hole group (230) has a measured outer diameter of 40 mm, the fourth circular hole group (240) has a measured outer diameter of 60 mm, and the fifth circular hole group (250) has a measured outer diameter of 80 mm.

3. The fiber laser end cap machining tooling fixture of claim 2, wherein, The several circular holes in the same circular hole group are equidistantly distributed.

4. The fiber laser end cap machining tooling fixture of claim 1, wherein, The inner diameter of any circular hole is 5 mm.

5. The fiber laser end cap machining tooling fixture of claim 1, wherein, The line connecting at least one circular hole in any circular hole group and at least one circular hole in each of the other circular hole groups is a straight line.

6. The fiber laser end cap machining tooling fixture of claim 1, wherein, The thickness of the disc body (100) is 10 mm.

7. The fiber laser end cap machining tooling fixture of claim 1, wherein, The disc body (100) is made of K9 glass or quartz glass.

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