Light source mechanism for laser welding

Abstract

A light source mechanism for laser welding comprises an annular light source and a coaxial light source which are relatively fixed. The bottom surface of the annular light source is a light-emitting surface; the coaxial light source comprises a shell, a lamp panel and a reflecting mirror; the shell is arranged above the annular light source, the shell is provided with a vertical mounting cavity and a horizontal mounting cavity, the vertical mounting cavity penetrates through the top surface and the bottom surface of the shell and is arranged opposite to an inner ring of the annular light source, and the horizontal mounting cavity is arranged beside the vertical mounting cavity and is communicated with the vertical mounting cavity; the lamp panel is vertically mounted in the horizontal mounting cavity, and the light-emitting surface of the lamp panel faces the vertical mounting cavity; the reflector is obliquely mounted in the vertical mounting cavity and is used for reflecting a light source emitted by the lamp panel to irradiate the worktable through an inner ring of the annular light source; and the reflecting mirror is provided with a through hole for the laser to pass through.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of light source mechanism, specifically related to a light source mechanism for laser welding. BACKGROUND

[0002] In the existing integrated busbar, the collection branch and the current collecting piece of part of the integrated busbar are welded with the nickel sheet by the laser welding mode. The light source of the welding equipment generally adopts the annular light source, so that the uniform light source is provided at the welding point position. However, the existing annular light source is actually an annular lamp bead. After the annular light source is irradiated onto the workbench, a bright annular ring appears at the place irradiated by the annular lamp bead, and the light in the annular ring is relatively weak. This leads to the uneven distribution of light intensity and affects the welding quality. SUMMARY

[0003] The utility model discloses a light source mechanism for laser welding which overcomes the shortcomings of the prior art.

[0004] To achieve the above object, the utility model discloses a light source mechanism for laser welding, which comprises a fixed annular light source and a coaxial light source.

[0005] The bottom surface of the annular light source is a light emitting surface.

[0006] The coaxial light source comprises a shell, a lamp panel and a reflector. The shell is arranged above the annular light source. The shell is provided with a vertical mounting cavity and a horizontal mounting cavity. The vertical mounting cavity penetrates through the top surface and the bottom surface of the shell and is arranged opposite to the inner ring of the annular light source. The horizontal mounting cavity is arranged beside the vertical mounting cavity and is in communication with the vertical mounting cavity. The lamp panel is vertically mounted in the horizontal mounting cavity, and the light emitting surface of the lamp panel faces the vertical mounting cavity. The reflector is obliquely mounted in the vertical mounting cavity and is used for reflecting the light emitted by the lamp panel through the inner ring of the annular light source to the workbench. The reflector is provided with a through hole through which the laser passes.

[0007] Preferably, the intersection position of the vertical mounting cavity and the horizontal mounting cavity is provided with a vertically arranged diffusion lens.

[0008] Preferably, the top of the diffusion lens is connected with the top of the reflecting lens.

[0009] Preferably, the shape and size of the through hole are adapted to the pattern and size of the laser welding.

[0010] Preferably, the cross-sectional shape of the through hole is a square, and the side length of the through hole is 6mm-14mm.

[0011] Preferably, the annular light source and the coaxial light source are used for being mounted to the laser, and the size of the through hole is adapted to the size of the laser beam.

[0012] Preferably, the angle between the mirror and the horizontal plane is 45°.

[0013] Preferably, a plurality of grooves are arranged on the back of the lamp panel of the shell.

[0014] Preferably, the vertical mounting cavity and the annular light source are coaxially arranged.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The light source mechanism for laser welding of the utility model further sets the coaxial light source, the coaxial light source includes the shell, the lamp panel and the mirror, the shell is arranged on the top of the annular light source, the shell is equipped with the vertical mounting cavity and the horizontal mounting cavity, the vertical mounting cavity is through the top surface and the bottom surface of the shell and is arranged opposite to the inner circle of the annular light source, the horizontal mounting cavity is arranged on the side of the vertical mounting cavity and is communicated with the vertical mounting cavity, the lamp panel is vertically installed in the horizontal mounting cavity, the light emitting surface of the lamp panel faces the vertical mounting cavity, the mirror is obliquely installed in the vertical mounting cavity, can reflect the light source emitted by the lamp panel through the inner circle of the annular light source and irradiate to the workbench, in this way, the light source can compensate the light circle generated by the annular light source, makes the light intensity in the light circle close to the light intensity of the light circle, in this way, the light circle and the light intensity in the light circle are uniform, greatly alleviate the adverse effects caused by welding.

[0017] During the laser welding process, the laser beam passes through the vertical mounting cavity of the coaxial light source and the inner circle of the annular light source to carry out laser welding, after using for a period of time, the reflection lens will be attached with welding slag, dust and other foreign matters, after the laser beam acts on the mirror, the mirror will be damaged, at the same time, the energy of the laser beam passing through the mirror is reduced, which can cause the product welding point to be blue, black, false welding and other adverse problems. In the utility model, the through hole for the laser to pass through is arranged on the mirror, which avoids the problems of mirror damage and poor welding quality caused by the attachment of foreign matters on the mirror. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure schematic view of the light source mechanism for laser welding of the embodiment;

[0019] Figure 2 It is the structure schematic view of the light source mechanism for laser welding of the embodiment; Figure 1

[0020] The annular light source 100;

[0021] The coaxial light source 200;The shell 210;The vertical mounting cavity 211;The horizontal mounting cavity 212;The groove 213;The lamp panel 220;The mirror 230;The through hole 231;The diffusion lens 240;

[0022] The bracket 300. DETAILED DESCRIPTION​

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more apparent, comprehensible and easily understandable, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0024] A light source mechanism for laser welding, see Figures 1-2 , comprising a relatively fixed annular light source 100 and a coaxial light source 200, in the present application, the two light sources are fixed through a support 300. The bottom surface of the annular light source 100 is a light emitting surface. The coaxial light source 200 comprises a shell 210, a lamp panel 220 and a reflector 230; the shell 210 is arranged above the annular light source 100, the shell 210 is provided with a vertical mounting cavity 211 and a horizontal mounting cavity 212, the vertical mounting cavity 211 penetrates through the top surface and the bottom surface of the shell 210 and is arranged opposite to the inner circle of the annular light source 100, the horizontal mounting cavity 212 is arranged beside the vertical mounting cavity 211 and communicates with the vertical mounting cavity 211; the lamp panel 220 is vertically mounted in the horizontal mounting cavity 212, and the light emitting surface of the lamp panel 220 faces the vertical mounting cavity 211; the reflector 230 is obliquely mounted in the vertical mounting cavity 211, specifically, the angle between the reflector 230 and the horizontal plane is 45°, which is used for reflecting the light emitted by the lamp panel 220 through the inner circle of the annular light source 100 to the workbench, so that the light source can compensate for the light in the light ring generated by the annular light source 100, so that the light intensity in the light ring is close to the light intensity of the light ring, so that the light ring and the light intensity in the light ring are uniform, which greatly relieves the adverse effects on welding.

[0025] During the laser welding process, the laser beam passes through the vertical mounting cavity 211 of the coaxial light source 200 and the inner circle of the annular light source 100 for laser welding. After being used for a period of time, foreign matters such as welding slag and dust will be attached to the reflecting lens. After the laser beam acts on the reflector 230, the reflector 230 will be damaged, and at the same time, the energy of the laser beam passing through the reflector 230 will be reduced, which will cause problems such as blue and black welding points, virtual welding, false welding and other adverse problems. In the present embodiment, a through hole 231 for laser passing through is arranged on the reflector 230, which avoids the problems of damage of the reflector 230 and poor welding quality caused by attachment of foreign matters on the reflector 230.

[0026] Due to the through hole 231, the light irradiated from the lamp panel 220 to the through hole 231 cannot be reflected to the workbench. In order to reduce the influence of the through hole 231, in the present embodiment, a vertically arranged diffusion lens 240 is arranged at the joint position of the vertical mounting cavity 211 and the horizontal mounting cavity 212, so that when the light emitted by the lamp panel 220 irradiates to the reflector 230, it is first diverged by the diffusion lens 240, so that the light irradiated to the through hole 231 is reduced, and more light can be reflected to the workbench, reducing the influence of the through hole 231.

[0027] In the embodiment, the top of the diffusion lens 240 is connected with the top of the reflecting lens, so that more light energy dispersed by the diffusion lens 240 is diverged to the reflecting mirror 230, and more light energy is reflected to the workbench by the reflecting mirror 230.

[0028] In the embodiment, the shape and size of the through hole 231 are adapted to the pattern and size of the laser welding, and in practice, the welding pattern is generally circular when laser welding, so the shape of the through hole 231 can be circular or square circumscribed on the circular. The embodiment is square, and the side length is 6-14 mm.

[0029] In other embodiments, the ring light source 100 and the coaxial light source 200 are used to be mounted to the laser, and the size of the through hole 231 is adapted to the size of the laser beam, so that the size of the through hole 231 can be set smaller, and the influence caused by the through hole 231 is greatly reduced.

[0030] In the embodiment, a plurality of grooves 213 are arranged on the surface of the shell 210 opposite to the lamp panel 220, and the plurality of grooves not only improve the heat dissipation effect, but also facilitate the hand holding of the coaxial light source 200.

[0031] In the embodiment, the vertical mounting cavity 211 and the ring light source 100 are coaxially arranged.

[0032] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments are not enumerated. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A light source mechanism for laser welding, characterized by: The relative fixed ring light source and the coaxial light source are included; The bottom surface of the ring light source is a light emitting surface; The coaxial light source includes a shell, a lamp panel and a reflector; the shell is arranged above the ring light source, the shell is provided with a vertical installation cavity and a horizontal installation cavity, the vertical installation cavity penetrates through the top surface and the bottom surface of the shell and is arranged opposite to the inner ring of the ring light source, the horizontal installation cavity is arranged beside the vertical installation cavity and communicates with the vertical installation cavity; the lamp panel is vertically installed in the horizontal installation cavity, and the light emitting surface of the lamp panel faces the vertical installation cavity; the reflector is obliquely installed in the vertical installation cavity and is used for reflecting the light emitted by the lamp panel to the workbench through the inner ring of the ring light source; the reflector is provided with a through hole through which the laser passes.

2. The light source mechanism for laser welding according to claim 1, characterized by: The intersection position of the vertical installation cavity and the horizontal installation cavity is provided with a vertically arranged diffusion lens.

3. The light source mechanism for laser welding according to claim 2, characterized by: The top of the diffusion lens is connected with the top of the reflector.

4. The light source mechanism for laser welding according to claim 1, characterized by: The shape and size of the through hole are matched with the pattern and size of the laser welding.

5. The light source mechanism for laser welding according to claim 4, characterized by: The cross-sectional shape of the through hole is a square, and the side length of the through hole is 6mm-14mm.

6. The light source mechanism for laser welding according to claim 1, characterized by: The ring light source and the coaxial light source are used for being installed to the laser, and the size of the through hole is matched with the size of the laser beam.

7. The light source mechanism for laser welding according to claim 1, characterized by: The angle between the reflector and the horizontal plane is 45°.

8. The light source mechanism for laser welding according to claim 1, characterized by: The surface opposite to the lamp panel of the shell is provided with a plurality of grooves.

9. The light source mechanism for laser welding according to claim 1, characterized by: The vertical installation cavity and the ring light source are coaxially arranged.

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