Laser welding protection lens

Abstract

The embodiment of the utility model provides a laser welding protection lens. The laser welding protection lens comprises a lens body, a first fastener and a second fastener, the lens body comprises a first surface and a second surface, and the diameter of the first surface is larger than that of the second surface; the first fastener is connected with the first surface; the second fastener is connected with the second surface; the diameter of the first surface is larger than that of the second surface, the first surface is connected with the first fastener, and the second surface is connected with the second fastener, so that the problem of lens damage caused by alternate use of the front surface and the back surface of the laser welding protection lens is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding, and more specifically, to a laser welding protective lens. Background Art

[0002] During the process of laser welding metal weldments, impurities such as metal vapor, smoke, splashing molten liquid droplets, etc. are easily attached to the protective lens, causing problems such as reduced light transmittance and focus shift of the protective lens, and in severe cases, the lens may be damaged. For this reason, the prior art usually cleans the protective lens frequently during the processing. However, after the current protective lens is cleaned, it is easy for the front and back sides of the protective lens to be used alternately, resulting in damage to the lens.

[0003] Therefore, it is necessary to provide a new technical solution to solve the above technical problems. Utility Model Content

[0004] One purpose of the utility model is to provide a new technical solution for laser welding protective lenses.

[0005] According to a first aspect of the utility model, a laser welding protective lens is provided, wherein the laser welding protective lens comprises:

[0006] A lens, the lens comprising a first surface and a second surface, wherein a diameter of the first surface is greater than a diameter of the second surface;

[0007] a first fastener connected to the first surface;

[0008] A second fastener is connected to the second surface.

[0009] Optionally, the lens comprises a first lens and a second lens, the first lens and the second lens form an integral structure, and a diameter of the first lens is greater than a diameter of the second lens;

[0010] The first surface is disposed on a side of the first lens facing away from the second lens, and the second surface is disposed on a side of the second lens facing away from the first lens.

[0011] Optionally, the first fastener is a cylindrical structure;

[0012] And / or, the second fastener is a cylindrical structure.

[0013] Optionally, the first fastener includes a first step surface, a second step surface and a first mounting surface, and the first mounting surface is arranged between the first step surface and the second step surface.

[0014] Optionally, the laser welding protection lens further includes a first sealing ring, and the first sealing ring is arranged between the first mounting surface and the first surface.

[0015] Optionally, the first sealing ring is made of soft rubber.

[0016] Optionally, the second fastener includes a third step surface, a fourth step surface and a second mounting surface, and the second mounting surface is arranged between the third step surface and the fourth step surface.

[0017] Optionally, the laser welding protection lens further includes a second sealing ring, and the second sealing ring is arranged between the second mounting surface and the second surface.

[0018] Optionally, the second sealing ring is made of soft rubber.

[0019] Optionally, the first fastener is a magnetic structural member;

[0020] And / or, the second fastener is a magnetic structural member.

[0021] According to the laser welding protective lens provided by the embodiment of the utility model, the laser welding protective lens includes a lens, a first fastener and a second fastener, the lens includes a first surface and a second surface, the diameter of the first surface is larger than the diameter of the second surface; the first fastener is connected to the first surface; the second fastener is connected to the second surface; by setting the diameter of the first surface to be larger than the diameter of the second surface, and making the first surface connected to the first fastener and the second surface connected to the second fastener, the problem of damage to the lens caused by alternating use of the front and back sides of the laser welding protective lens is effectively avoided.

[0022] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0024] Figure 1 It is an exploded view of a laser welded protective lens in one embodiment of the utility model.

[0025] Figure 2 It is a schematic structural diagram of a laser welding protective lens in one embodiment of the utility model.

[0026] Figure 3 It is a top view of a lens in one embodiment of the utility model.

[0027] Figure 4 It is a cross-sectional view of a lens in one embodiment of the utility model.

[0028] Figure 5 It is a schematic structural diagram of a first fastener in an embodiment of the utility model.

[0029] Figure 6 It is a schematic structural diagram of a second fastener in one embodiment of the utility model.

[0030] Description of reference numerals:

[0031] 1. first fastener; 11. first step surface; 12. second step surface; 13. first mounting surface;

[0032] 2. The first sealing ring;

[0033] 3. lens; 31. first lens; 311. first surface; 32. second lens; 321. second surface;

[0034] 4. Second sealing ring;

[0035] 5. second fastener; 51. third step surface; 52. fourth step surface; 53. second mounting surface;

[0036] 6. Light hole. DETAILED DESCRIPTION

[0037] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0038] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be understood as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0039] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0040] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0041] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0043] According to one embodiment of the present application, a laser welding protective lens is provided. Figures 1 to 6 The laser welding protective lens includes a lens 3, a first fastener 1 and a second fastener 5, the lens 3 includes a first surface 311 and a second surface 321, the diameter of the first surface 311 is greater than the diameter of the second surface 321; the first fastener 1 is connected to the first surface 311; the second fastener 5 is connected to the second surface 321.

[0044] Specifically, Figure 1 and Figure 2 As shown, the material of the lens 3 described in the embodiment of the present application can be at least one of quartz crystal, K9 glass, zinc selenide and molten quartz to ensure that the laser welding protection lens has the characteristics of high light transmittance, high heat resistance and high laser damage threshold.

[0045] The lens 3 includes a first surface 311 and a second surface 321 , and the diameter of the first surface 311 is greater than the diameter of the second surface 321 , so that the lens 3 is formed into a step structure with different areas of the first surface 311 and the second surface 321 .

[0046] Therefore, in the embodiment of the present application, the first fastener 1 is connected to the first surface 311, and the second fastener 5 is connected to the second surface 321, so that the installation of the lens 3 is effectively realized. In addition, since the diameter of the first surface 311 is larger than the diameter of the second surface 321, when installing the lens 3, the first surface 311 can always be connected to the first fastener 1, and the second surface 321 can always be connected to the second fastener 5, so as to effectively avoid the situation that the lens 3 is damaged due to the alternating use of the front and back sides of the lens 3 due to installation errors by the operator, and significantly prolong the service life of the lens 3.

[0047] In addition, the lens 3 described in the embodiment of the present application can also be formed into a truncated cone structure or a prism structure with different areas of the first surface 311 and the second surface 321. Those skilled in the art can make a choice according to actual needs, and the present application does not make any specific restrictions here.

[0048] In addition, in the embodiment of the present application, the connection between the first fastener 1 and the first surface 311 can be any one of screw connection, riveting, bonding or plug-in connection. Those skilled in the art can choose according to actual needs, and the present application does not make any specific restrictions here.

[0049] In one embodiment, the lens 3 includes a first lens 31 and a second lens 32, the first lens 31 and the second lens 32 form an integral structure, and the diameter of the first lens 31 is greater than the diameter of the second lens 32; wherein the first surface 311 is provided on the side of the first lens 31 facing away from the second lens 32, and the second surface 321 is provided on the side of the second lens 32 facing away from the first lens 31.

[0050] Specifically, Figure 3 and Figure 4 As shown, in the embodiment of the present application, the first lens 31 and the second lens 32 are both circular discs, and the first surface 311 is provided on the side of the first lens 31 facing away from the second lens 32, and the second surface 321 is provided on the side of the second lens 32 facing away from the first lens 31.

[0051] Thus, if Figure 3 As shown, in the embodiment of the present application, the radius of the first lens 31 is r, and the radius of the second lens 32 is R. By setting 2R greater than 2r, after the first lens 31 and the second lens 32 are fixedly connected, the lens 3 can be formed into a step structure with different areas of the first surface 311 and the second surface 321.

[0052] Furthermore, the first fastener 1 is connected to the first surface 311, and the second fastener 5 is connected to the second surface 321, which effectively avoids the situation where the lens 3 is damaged due to alternating use of the front and back sides of the lens 3 due to installation errors by the operator, and significantly extends the service life of the lens 3.

[0053] In addition, if Figure 4 As shown, in the embodiment of the present application, the thickness of the first lens 31 is t, and the thickness of the second lens 32 is T. By setting T greater than t, the stability and reliability of the cooperation between the lens 3 and the first fastener 1 and the second fastener 5 can be effectively improved.

[0054] In addition, in the embodiment of the present application, the first lens 31 and the second lens 32 may also be oval or square sheet structures. Those skilled in the art may choose according to actual needs, and the present application does not make any specific restrictions here.

[0055] In one embodiment, the first fastener 1 is a cylindrical structure; and / or the second fastener 5 is a cylindrical structure.

[0056] Specifically, Figure 3 and Figure 4 As shown, since the lens 3 in the embodiment of the present application is a step structure with different areas of the first surface 311 and the second surface 321, in order to better fix the lens 3, as shown in FIG. Figure 5 and Figure 6 As shown, in the embodiment of the present application, the first fastener 1 and the second fastener 5 are also configured as cylindrical structures adapted to the step structure.

[0057] Of course, in the embodiment of the present application, only the first fastener 1 may be set as a cylindrical structure, or only the second fastener 5 may be set as a cylindrical structure. Those skilled in the art may make a choice according to actual needs, and the present application does not make any specific restrictions here.

[0058] In addition, the embodiment of the present application configures the first fastener 1 and the second fastener 5 as a cylindrical structure, thereby making the disassembly and installation of the lens 3 simpler and more convenient, thereby further improving the performance of the laser welding protective lens.

[0059] In addition, in the embodiment of the present application, the first fastener 1 and the second fastener 5 may also be an elliptical slot or a square slot structure, and those skilled in the art may make a choice according to actual needs, and the present application does not make any specific restrictions here.

[0060] In one embodiment, the first fastener 1 includes a first step surface 11 , a second step surface 12 and a first mounting surface 13 , and the first mounting surface 13 is disposed between the first step surface 11 and the second step surface 12 .

[0061] Specifically, Figure 5 As shown, the embodiment of the present application can better clamp and fix the first lens 31 by configuring the first fastener 1 as a stepped structure that is compatible with the lens 3 of the step structure, thereby significantly improving the stability and reliability of the cooperation between the first fastener 1 and the first lens 31.

[0062] Among them, the first fastener 1 includes a first step surface 11, a second step surface 12 and a first mounting surface 13, the first mounting surface 13 is arranged between the first step surface 11 and the second step surface 12, and the first mounting surface 13 is perpendicular to the first step surface 11 and the second step surface 12, so as to better realize the connection between the first step surface 11 and the circumferential surface of the first lens 31, and the first mounting surface 13 can be connected to the first surface 311.

[0063] Of course, when the lens 3 described in the embodiment of the present application is a truncated cone structure, the first mounting surface 13 in the embodiment of the present application may not be perpendicular to the first step surface 11 and the second step surface 12, but the angle between the first mounting surface 13 and the first step surface 11 is greater than the angle between the first mounting surface 13 and the second step surface 12, so that the first fastener 1 can better cooperate with the lens 3 of the truncated cone structure.

[0064] In addition, after the first step surface 11 is connected to the circumferential surface of the first lens 31, and the first mounting surface 13 can be connected to the first surface 311, the second step surface 12 can also form a light hole 6 of the laser welding protection lens to facilitate laser welding using the laser welding protection lens.

[0065] In one embodiment, the laser welding protective lens further includes a first sealing ring 2 , and the first sealing ring 2 is disposed between the first mounting surface 13 and the first surface 311 .

[0066] Specifically, Figure 5 As shown, the embodiment of the present application provides the first sealing ring 2 between the first mounting surface 13 and the first surface 311 , thereby better buffering and sealing the first surface 311 and preventing the first surface 311 from being damaged due to direct contact with the first mounting surface 13 .

[0067] In addition, under the condition of meeting the buffering and sealing requirements of the first surface 311, the embodiment of the present application may not be provided with the first sealing ring 2. Those skilled in the art may make a choice according to actual needs, and the present application does not make any specific restrictions here.

[0068] In one embodiment, the first sealing ring 2 is made of soft rubber.

[0069] Specifically, Figure 5 As shown, in the embodiment of the present application, by setting the material of the first sealing ring 2 to soft rubber, the first sealing ring 2 can better achieve the buffering and sealing of the first surface 311, thereby significantly improving the integrity of the first surface 311.

[0070] In addition, the material of the first sealing ring 2 in the embodiment of the present application can also be natural rubber, thermoplastic elastomer, polyvinyl chloride, soft polyvinyl chloride, thermoplastic vulcanizate or polyisobutylene, etc. Technical personnel in this field can choose according to actual needs, and this application does not make any specific restrictions here.

[0071] In one embodiment, the second fastener 5 includes a third step surface 51 , a fourth step surface 52 and a second mounting surface 53 , and the second mounting surface 53 is disposed between the third step surface 51 and the fourth step surface 52 .

[0072] Specifically, Figure 6 As shown, the embodiment of the present application can better clamp and fix the second lens 32 by configuring the second fastener 5 as a stepped structure that is compatible with the lens 3 of the step structure, thereby significantly improving the stability and reliability of the cooperation between the second fastener 5 and the second lens 32.

[0073] Among them, the second fastener 5 includes a third step surface 51, a fourth step surface 52 and a second mounting surface 53, the second mounting surface 53 is arranged between the third step surface 51 and the fourth step surface 52, and the second mounting surface 53 is perpendicular to the third step surface 51 and the fourth step surface 52, so as to better realize the connection between the third step surface 51 and the circumferential surface of the second lens 32, and the second mounting surface 53 can be connected to the second surface 321.

[0074] Of course, when the lens 3 described in the embodiment of the present application is a truncated cone structure, the second mounting surface 53 in the embodiment of the present application may not be perpendicular to the third step surface 51 and the fourth step surface 52, but the angle between the second mounting surface 53 and the third step surface 51 is greater than the angle between the second mounting surface 53 and the fourth step surface 52, so that the second fastener 5 can better cooperate with the lens 3 of the truncated cone structure.

[0075] In addition, after the third step surface 51 is connected to the circumferential surface of the second lens 32, and the second mounting surface 53 can be connected to the second surface 321, the fourth step surface 52 can also form a light hole 6 of the laser welding protection lens to facilitate laser welding using the laser welding protection lens.

[0076] In one embodiment, the laser welding protection lens further includes a second sealing ring 4 , and the second sealing ring 4 is disposed between the second mounting surface 53 and the second surface 321 .

[0077] Specifically, Figure 6 As shown, the embodiment of the present application provides the second sealing ring 4 between the second mounting surface 53 and the second surface 321 , thereby better buffering and sealing the second surface 321 and preventing the second surface 321 from being damaged due to direct contact with the second mounting surface 53 .

[0078] In addition, under the condition of meeting the buffering and sealing requirements of the second surface 321, the embodiment of the present application may not be provided with the first sealing ring 2. Those skilled in the art may make a choice according to actual needs, and the present application does not make any specific restrictions here.

[0079] In one embodiment, the second sealing ring 4 is made of soft rubber.

[0080] Specifically, Figure 6 As shown, in the embodiment of the present application, by setting the material of the second sealing ring 4 to soft rubber, the second sealing ring 4 can better achieve the buffering and sealing of the second surface 321, thereby significantly improving the integrity of the second surface 321.

[0081] In addition, the material of the second sealing ring 4 in the embodiment of the present application can also be natural rubber, thermoplastic elastomer, polyvinyl chloride, soft polyvinyl chloride, thermoplastic vulcanizate or polyisobutylene, etc. Technical personnel in this field can choose according to actual needs, and this application does not make any specific restrictions here.

[0082] In one embodiment, the first fastener 1 is a magnetic structural member; and / or the second fastener 5 is a magnetic structural member.

[0083] Specifically, Figure 5 and Figure 6 As shown, in the embodiment of the present application, the first fastener 1 and the second fastener 5 are set as magnetic structural parts, so that the laser welding protection lens can be disassembled and installed only by the magnetic attraction and fastening between the first fastener 1 and the second fastener 5, which significantly improves the disassembly and installation efficiency of the laser welding protection lens.

[0084] Of course, in the embodiment of the present application, only the first fastener 1 can be set as a magnetic structural member, and the second fastener 5 can be set to a material such as iron, steel, nickel or cobalt; or, in the embodiment of the present application, only the second fastener 5 can be set as a magnetic structural member, and the first fastener 1 can be set to a material such as iron, steel, nickel or cobalt. Those skilled in the art can make a choice according to actual needs, and the present application does not make any specific restrictions here.

[0085] In addition, in the embodiment of the present application, the interior of the first fastener 1 may be provided with an internal thread, and the circumferential surface of the first lens 31 may be provided with an external thread, so that the connection and fixation between the first fastener 1 and the first lens 31 can be better achieved through the cooperation between the internal thread and the external thread, so that the first fastener 1 and the first lens 31 are tightly matched without sliding, thereby effectively improving the stability and reliability of the laser welding protective lens.

[0086] In addition, in the embodiment of the present application, the interior of the second fastener 5 may also be provided with an internal thread, and the circumferential surface of the second lens 32 may also be provided with an external thread, so that the connection and fixation between the second fastener 5 and the second lens 32 can be better achieved through the cooperation of the internal thread and the external thread, so that the second fastener 5 and the second lens 32 are tightly matched without sliding, thereby effectively improving the stability and reliability of the laser welding protective lens.

[0087] In one embodiment, the first fastener 1 further includes a first elastic locking structure, and the first elastic locking structure is used to connect with the welding head; or the second fastener 5 further includes a second elastic locking structure, and the second elastic locking structure is used to connect with the welding head.

[0088] Specifically, the embodiment of the present application fixes the first elastic locking structure or the second elastic locking structure to the welding head, thereby effectively improving the stability and reliability of the laser welding protection lens during welding.

[0089] In one embodiment, the first fastener 1 further includes a first handle structure, and the first handle structure is used to connect to the welding head; or the second fastener 5 further includes a second handle structure, and the second handle structure is used to connect to the welding head.

[0090] Specifically, the embodiment of the present application fixes the first handle structure or the second handle structure to the welding head, thereby effectively improving the stability and reliability of the laser welding protection lens during welding.

[0091] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0092] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A laser welding protective lens, characterized in that: include: A lens (3), the lens (3) comprising a first surface (311) and a second surface (321), the diameter of the first surface (311) being greater than the diameter of the second surface (321); A first fastener (1), the first fastener (1) being connected to the first surface (311); A second fastener (5), the second fastener (5) is connected to the second surface (321).

2. The laser welding protective lens according to claim 1, characterized in that: The lens (3) comprises a first lens (31) and a second lens (32), the first lens (31) and the second lens (32) form an integral structure, and the diameter of the first lens (31) is greater than the diameter of the second lens (32); The first surface (311) is arranged on a side of the first lens (31) facing away from the second lens (32), and the second surface (321) is arranged on a side of the second lens (32) facing away from the first lens (31).

3. The laser welding protective lens according to claim 2, characterized in that: The first fastener (1) is a cylindrical structure; And / or, the second fastener (5) is a tubular structure.

4. The laser welding protective lens according to claim 3, characterized in that: The first fastener (1) comprises a first step surface (11), a second step surface (12) and a first mounting surface (13); the first mounting surface (13) is arranged between the first step surface (11) and the second step surface (12).

5. The laser welding protective lens according to claim 4, characterized in that: The laser welding protective lens (3) further comprises a first sealing ring (2), wherein the first sealing ring (2) is arranged between the first mounting surface (13) and the first surface (311).

6. The laser welding protective lens according to claim 5, characterized in that: The first sealing ring (2) is made of soft rubber.

7. The laser welding protective lens according to claim 3, characterized in that: The second fastener (5) comprises a third step surface (51), a fourth step surface (52) and a second mounting surface (53), wherein the second mounting surface (53) is arranged between the third step surface (51) and the fourth step surface (52).

8. The laser welding protective lens according to claim 7, characterized in that: The laser welding protective lens (3) further comprises a second sealing ring (4), wherein the second sealing ring (4) is arranged between the second mounting surface (53) and the second surface (321).

9. The laser welding protective lens according to claim 8, characterized in that: The second sealing ring (4) is made of soft rubber.

10. The laser welding protective lens according to claim 1, characterized in that: The first fastener (1) is a magnetic structural member; And / or, the second fastener (5) is a magnetic structural component.

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