Auxiliary workpiece for laser sealing surface range measurement and polishing device

Abstract

The utility model provides an auxiliary workpiece for measuring the range of a laser sealing surface and a polishing device, the auxiliary workpiece comprises a first connecting part and a second connecting part, and the first connecting part and the second connecting part respectively extend along a first direction and a second direction which are perpendicular to each other; the first connecting part is provided with a first end face and a second end face which are connected with each other, the second connecting part is provided with a third end face, the first end face is the surface of the end, away from the second connecting part, of the first connecting part, the second end face is connected with the third end face, and the first end face and the third end face are located on the same side of the auxiliary workpiece. The first end face and the third end face are independently arc-shaped faces protruding outwards, the curvature radius of the first end face is different from that of the third end face, and the second end face is a plane. The range and the size of the sealing surface can be determined, and the problem that the range of the sealing surface is large or small during rift grain polishing operation is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of semiconductor laser manufacturing, and relates to polishing of a laser sealing surface, in particular to an auxiliary workpiece for measuring the range of a laser sealing surface and a polishing device. BACKGROUND

[0002] Semiconductor lasers have the advantages of small size, low energy consumption, light weight, long service life and high efficiency, and the manufacturing method of semiconductor lasers is simple and the cost is low, so semiconductor lasers are widely used in the fields of optical communication, optical driving, optical storage and laser display.

[0003] The sealing property of a laser is of great significance to the normal and stable operation of the laser, and therefore sealing and packaging of a semiconductor laser to ensure the air tightness inside the laser cavity becomes an important step in the production process of the semiconductor laser.

[0004] Therefore, how to confirm the range of the sealing surface so that it meets the sealing performance requirement is very important for the sealing and packaging process of the semiconductor laser. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies in the prior art, the utility model aims to provide an auxiliary workpiece for measuring the range of a laser sealing surface and a polishing device, which is used in the cross-grain polishing process of a semiconductor laser sealing surface, can clearly determine the range and size of the sealing surface, and ensure the accuracy of the cross-grain polishing range.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] In the first aspect, the utility model provides an auxiliary workpiece for measuring the range of a laser sealing surface, which comprises a first connecting part and a second connecting part, wherein the first connecting part and the second connecting part extend along mutually perpendicular first and second directions respectively; the first connecting part has a first end surface and a second end surface connected to each other, the second connecting part has a third end surface, the first end surface is an end surface of the first connecting part away from the second connecting part, the second end surface is connected to the third end surface, and the first end surface and the third end surface are located on the same side of the auxiliary workpiece, the first end surface and the third end surface are independently arc-shaped surfaces protruding outward, the radii of curvature of the first end surface and the third end surface are different from each other, and the second end surface is a plane.

[0008] The utility model discloses a first end face of first connecting part determines the diameter of sealing surface, and the second end face is attached to the surface of laser, to determine the width of sealing surface, and the second connecting part is then extended to the inner chamber of laser housing, and the third end face is tightly attached to the inner chamber wall, prevents the auxiliary workpiece from moving in the use process, guarantees the unity of size, realizes the measurement of sealing surface range, avoids the problem of polishing too big or too small of sealing surface range when doing the work of following the grain, and guarantees product quality.

[0009] As an optimal technical scheme of the utility model, the cross section of the auxiliary workpiece is "L" type structure.

[0010] As an optimal technical scheme of the utility model, the curvature radius of the first end face is greater than the curvature radius of the third end face.

[0011] As an optimal technical scheme of the utility model, the maximum linear length of the first connecting part in the first direction is recorded as the first length, and the maximum linear length of the second connecting part in the second direction is recorded as the second length, and the first length is greater than the second length.

[0012] As an optimal technical scheme of the utility model, the first length is 38-45mm, for example, can be 38mm, 39mm, 40mm, 41mm, 42mm, 43mm, 44mm or 45mm, but is not only limited to the enumerated values, and other unlisted values in the numerical range are also applicable.

[0013] The second length is 12-18mm, for example, can be 12mm, 13mm, 14mm, 15mm, 16mm, 17mm or 18mm, but is not only limited to the enumerated values, and other unlisted values in the numerical range are also applicable.

[0014] As an optimal technical scheme of the utility model, the maximum linear length of the second connecting part in the first direction is 10-13mm, for example, can be 10mm, 10.5mm, 1mm, 11.5mm, 12mm, 13.5mm or 13mm, but is not only limited to the enumerated values, and other unlisted values in the numerical range are also applicable.

[0015] As an optimal technical scheme of the utility model, the material of the first connecting part and the second connecting part is polytetrafluoroethylene.

[0016] As an optimal technical scheme of the utility model, the first connecting part and the second connecting part are integrally formed.

[0017] As an optimal technical scheme of the utility model, the maximum linear length of the second end face in the third direction is 35-45mm, and the first direction, the second direction and the third direction are perpendicular to each other.

[0018] The maximum linear length of the second end face in the third direction may be, for example, 35 mm, 36 mm, 37 mm, 38 mm, 39 mm, 40 mm, 41 mm, 42 mm, 43 mm, 44 mm, or 45 mm, but is not limited to the listed values, and other values not listed within this range are also applicable.

[0019] In a second aspect, the utility model provides a kind of polishing device, the polishing device includes the auxiliary workpiece for the sealing surface range measurement of laser described in first aspect.

[0020] Since the sealing requirement of semiconductor laser product is extremely high in use process, a certain range of sealing surface is left on the surface of laser product for effective sealing. When the surface of product is treated, the sealing surface is polished along the grain, so the determination of sealing surface range is crucial for laser sealing effect and product quality. The polishing device of the utility model adopts auxiliary workpiece to determine the size of sealing surface, better guarantee the sealing surface range of product, and is beneficial to improve the quality of laser product.

[0021] The numerical range of the utility model includes not only the point values exemplified above, but also any point values between the above numerical ranges not exemplified. Due to the limited space and for the sake of simplicity, the utility model does not exhaustively list the specific point values included in the range.

[0022] Compared with the prior art, the utility model has the beneficial effects that:

[0023] The auxiliary workpiece and polishing device for sealing surface range measurement of laser provided by the utility model can determine the range and size of sealing surface, ensure the uniformity of size, avoid the problems of polishing too large or too small in the process of polishing along the grain, and are beneficial to improve the polishing quality of laser sealing surface. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The auxiliary workpiece provided for the utility model embodiment 1 is shown in the structural schematic view.

[0025] Figure 2 The auxiliary workpiece provided for the utility model embodiment 1 is shown in the top view.

[0026] Figure 3 The auxiliary workpiece provided for the utility model embodiment 1 is shown in the side view.

[0027] Figure 4 The auxiliary workpiece provided for the utility model embodiment 1 is shown in the schematic view.

[0028] 1- first connecting part; 101- first end face; 102- second end face; 2- second connecting part; 201- third end face; 3- sealing surface; 4- inner cavity; 5- fine marker pen. DETAILED DESCRIPTION

[0029] It should be understood that, in the description of the present application, the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on 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 device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0030] It should be noted that, in the description of the present application, unless otherwise specified and limited, the terms "provided", "connected", "connected" 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, or it can be connected 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.

[0031] The technical solutions of the present application will be further described below in conjunction with the drawings and through specific embodiments.

[0032] In one specific embodiment, the utility model provides a kind of for laser sealing surface range measurement auxiliary workpiece, including first connecting portion and second connecting portion, the first connecting portion and second connecting portion are respectively along mutually perpendicular first direction and second direction extension;The first connecting portion has mutually connected first end face and second end face, the second connecting portion has third end face, the first end face is the end surface of first connecting portion away from second connecting portion, the second end face connects the third end face, and the first end face and third end face are located the same side of auxiliary workpiece, the first end face and third end face independently are outward protruding arc surface, the radius of curvature of the first end face and third end face is different from each other, the second end face is plane.The conventional laser places optical element in laser shell, and sealing element such as cover plate, sealant or sealing ring is fixed on the end surface of shell to seal the shell, ensure that sealing element is located in the range of the sealing surface of laser, better isolate optical element and external environment, and do not affect the performance of laser.The utility model is in the application process, first, the laser product to be handled is placed on the blanking machine and fixed, then auxiliary workpiece is placed on laser, so that the second end face of first connecting portion is attached to the upper end surface (the end surface of sealing surface) of laser, the second connecting portion is inserted into the inner cavity of laser shell (the internal space of laser for accommodating laser element), so that its third end face is tightly attached to the inner cavity wall, finally, the speed is adjusted and the blanking machine is started, a fine marker is used to mark the range of sealing surface on the product close to the first end face of first connecting portion, and the range is determined according to the marking.

[0033] Specifically, the cross section of the auxiliary workpiece is in the shape of "L". In the application process, the auxiliary workpiece is placed at the connection between the inner cavity and the upper end surface of the laser shell, so that the first connecting portion is attached to the upper end surface and the second connecting portion is inserted into the inner cavity of the laser for positioning.

[0034] In some embodiments, the radius of curvature of the first end face is greater than the radius of curvature of the third end face. In the utility model, the radius of curvature of the first end face matches the diameter of the sealing surface, and the third end face matches the diameter of the inner cavity of the laser shell, to ensure that the size of the sealing ring meets the requirements.

[0035] In some embodiments, the maximum linear length of the first connecting portion in the first direction is referred to as the first length, and the maximum linear length of the second connecting portion in the second direction is referred to as the second length, and the first length is greater than the second length. Specifically, the first length is 38-45 mm, and the second length is 12-18 mm. The maximum linear length of the second connecting portion in the first direction is 10-13 mm.

[0036] In some embodiments, the first connecting part and the second connecting part are made of polytetrafluoroethylene. The auxiliary workpiece made of polytetrafluoroethylene has small weight, is convenient for a worker to hold and operate, has good mechanical properties, anti-static properties, surface pollution resistance, and oxidation corrosion resistance, is not easy to deform, is solid and wear-resistant, and can avoid damaging the surface of the laser.

[0037] In some embodiments, the first connecting part and the second connecting part are integrally formed. The preparation method of the auxiliary workpiece integrally formed is not specifically limited, and any manufacturing process commonly used by those skilled in the art can be used, for example, a corresponding mold can be provided for injection molding, and a numerical control machine tool can also be used for milling. In the preparation process, the size of the auxiliary workpiece needs to be controlled according to the size of the laser to ensure the machining precision and avoid deformation or unevenness.

[0038] In some embodiments, the maximum linear length of the second end face in the third direction is 35-45 mm, and the first direction, the second direction and the third direction are perpendicular to each other. The first connecting part and the second connecting part in the utility model not only ensure the size of the laser, but also have certain structural strength and thickness, which is convenient for the worker to operate.

[0039] In another specific embodiment, the utility model provides a polishing device, and the polishing device comprises the auxiliary workpiece for measuring the sealing surface range of the laser in the specific embodiment.

[0040] In the surface treatment process such as milling or grinding in the processing of the laser, defects such as cutting lines or grinding scratches are easily formed on the surface of the part, and small air flow channels are easily formed, which leads to subsequent sealing failure. Therefore, a polishing device needs to be used to perform cross-grain polishing treatment on the surface of the part to make the surface smooth and stable, thereby stabilizing the product quality. The utility model adopts the auxiliary workpiece to clearly define the size of the sealing surface, better ensures the sealing surface range of the product, prevents the sealing surface range from being too large or too small when performing cross-grain polishing operation of the sealing surface, and forms a cross-grain polishing line that meets the requirements.

[0041] Example 1

[0042] The embodiment provides an auxiliary workpiece for measuring a sealing surface range of a laser, as shown in Figure 1 、 Figure 2 and Figure 3As shown, the auxiliary workpiece includes integrally formed first connecting portion 1 and second connecting portion 2, and the materials of the first connecting portion 1 and the second connecting portion 2 are polytetrafluoroethylene. The first connecting portion 1 and the second connecting portion 2 extend along the first direction X and the second direction Y, which are perpendicular to each other. The first connecting portion 1 has a first end surface 101 and a second end surface 102 connected to each other, and the second connecting portion 2 has a third end surface 201. The first end surface 101 is an end surface of the first connecting portion 1 away from the second connecting portion 2, the second end surface 102 is also connected to the third end surface 201, and the first end surface 101 and the third end surface 201 are located on the same side of the auxiliary workpiece. The first end surface 101 and the third end surface 201 are independently outwardly protruding arc surfaces, and the curvature radius of the first end surface 101 is greater than that of the third end surface 201. The second end surface 102 is a flat surface. As shown in the figure, Figure 4 As shown, the curvature radius of the first end surface 101 of the auxiliary workpiece matches the diameter of the sealing surface 3, and the third end surface 201 matches the diameter of the inner cavity 4 of the laser shell, so that the size of the sealing ring meets the requirements. The first connecting portion 1 has a first length in the first direction X, and the first length is 41 mm. The second connecting portion 2 has a second length in the second direction Y, and the second length is 15 mm. The thickness of the first connecting portion 1 in the second direction Y is 20 mm, and the thickness of the second connecting portion 2 in the first direction X is 11.8 mm. The linear length of the second end surface 102 in the third direction Z is 40 mm. The first direction X, the second direction Y and the third direction Z are perpendicular to each other, which is convenient for the operator to operate.

[0043] As shown in the figure, Figure 4 As shown, in the use process of the auxiliary workpiece of the embodiment, the second end surface 102 of the first connecting portion 1 is attached to the upper end surface of the laser (the plane on which the sealing surface 3 is located), the second connecting portion 2 extends into the inner cavity 4 of the laser shell, and the third end surface 201 of the second connecting portion 2 is tightly attached to the wall of the inner cavity 4. The rotation speed is adjusted, and the laser part is driven to rotate by the puller. A fine marker 5 is used to mark the range of the sealing surface 3 on the product by approaching the first end surface 101 of the first connecting portion 1. After the marking is completed, the range is determined and the cross-grain polishing is performed.

[0044] The applicant declares that the above description is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. It should be understood by those skilled in the art that any changes or replacements within the technical scope disclosed by the present application can be easily thought of by any person skilled in the art, and all fall within the protection scope and disclosure scope of the present application.

Claims

1. An auxiliary workpiece for laser seal face range measurement, characterized by, The auxiliary workpiece comprises a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion extend along a first direction and a second direction perpendicular to each other respectively, the first connecting portion has a first end surface and a second end surface connected to each other, and the second connecting portion has a third end surface; the first end surface is an end surface of the first connecting portion away from the second connecting portion, the second end surface is connected to the third end surface, and the first end surface and the third end surface are located on the same side of the auxiliary workpiece, the first end surface and the third end surface are independently outwardly protruding arc surfaces, the radii of curvature of the first end surface and the third end surface are different from each other, and the second end surface is a plane.

2. The auxiliary workpiece for laser seal face range measurement according to claim 1, characterized in that, The cross section of the auxiliary workpiece is in an "L" shape structure.

3. The auxiliary workpiece for laser seal face range measurement of claim 1, wherein, The radius of curvature of the first end surface is greater than the radius of curvature of the third end surface.

4. The auxiliary workpiece for laser seal face range measurement of claim 3, wherein, The maximum linear length of the first connecting portion in the first direction is defined as a first length, and the maximum linear length of the second connecting portion in the second direction is defined as a second length, and the first length is greater than the second length.

5. The auxiliary workpiece for laser seal face range measurement of claim 4, wherein, The first length is 38-45 mm, and the second length is 12-18 mm.

6. The auxiliary workpiece for laser seal face range measurement of claim 5, wherein, The maximum linear length of the second connecting portion in the first direction is 10-13 mm.

7. The auxiliary workpiece for laser seal face range measurement of claim 1, wherein, The materials of the first connecting portion and the second connecting portion are polytetrafluoroethylene.

8. The auxiliary workpiece for laser seal face range measurement of claim 1, wherein, The first connecting portion and the second connecting portion are integrally formed.

9. The auxiliary workpiece for laser seal face range measurement of claim 1, wherein, The maximum linear length of the second end surface in a third direction is 35-45 mm, and the first direction, the second direction and the third direction are perpendicular to each other.

10. A polishing apparatus characterized by comprising: The polishing device comprises the auxiliary workpiece for measuring the range of the sealing surface of a laser device according to any one of claims 1-9.

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