Visual welding mechanism with auxiliary light source

Abstract

The utility model discloses a visual welding mechanism with an auxiliary light source. The visual welding mechanism comprises a visual camera, a welding head, a welding electrode and the auxiliary light source, the front end of the visual camera is connected with a lens module, the welding head is connected to the front end of the lens module, the front end of the welding head is connected with a mounting plate, an electrode fixing seat is fixed below the mounting plate, and the welding electrode is fixedly mounted on the electrode fixing seat; the electrode fixing base and the welding electrode form a step shaft with the diameter sequentially decreased from top to bottom, and the auxiliary light source is obliquely arranged on a step face formed by the electrode fixing base and the welding electrode. The inclined auxiliary light source is arranged on the side portion of the welding electrode, so that light can be supplemented in the inclined direction when a product with a special appearance is shot, clear shooting is guaranteed, and equipment can accurately capture a welding position. The auxiliary light source adopts an illumination optical fiber which can be made into a line-shaped structure and is small in size and easy to replace and maintain.

Description

Technical Field

[0001] The utility model relates to laser welding equipment, in particular to a visual welding mechanism with an auxiliary light source. Background Art

[0002] CCD is the most commonly used image sensor for machine vision and is widely used in laser welding equipment. At present, CCD vision welding machines are mainly composed of a welding head and a visual camera installed on the welding head. The CCD visual camera captures the image of the product and uses image processing algorithms to identify the mark points on the product. The motion platform adjusts the position and angle of the welding machine according to the calculated coordinates, and then performs welding operations through the welding head.

[0003] However, the current visual cameras can only achieve vertical lighting. For some special products, such as products with irregular slopes, ordinary vertical lighting cannot capture product features, resulting in unclear images and failure to achieve the desired shooting effect. Summary of the invention

[0004] In view of the above existing technical problems, the utility model provides a visual welding mechanism with an auxiliary light source, which adds an oblique auxiliary light source and can fill in the light when shooting products with special shapes, thereby ensuring clear shooting.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a visual welding mechanism with an auxiliary light source, comprising a visual camera, a welding head, a welding electrode and an auxiliary light source; a lens module is connected to the front end of the visual camera, the welding head is connected to the front end of the lens module, a mounting plate is connected to the front end of the welding head, an electrode fixing seat is fixed under the mounting plate, and the welding electrode is mounted and fixed on the electrode fixing seat; the electrode fixing seat and the welding electrode form a stepped axis with a decreasing diameter from top to bottom, and the auxiliary light source is obliquely arranged on the stepped surface formed by the electrode fixing seat and the welding electrode.

[0006] Further, the utility model comprises: the auxiliary light source is an illumination optical fiber; an optical fiber fixing block is fixed on the upper side edge of the electrode fixing seat; an oblique through hole is provided on the side of the welding electrode; one end of the illumination optical fiber is connected to the optical fiber fixing block; and the other end is fixed in the oblique through hole of the welding electrode.

[0007] Furthermore, in the present invention, the lighting optical fiber is arranged at an inclined angle of 45°.

[0008] Furthermore, the utility model has a plurality of illumination optical fibers which are evenly arranged circumferentially on the step surface formed by the electrode fixing seat and the welding electrode.

[0009] Furthermore, in the utility model, the mounting plate is L-shaped, and mounting holes are reserved on the side plate surface.

[0010] The beneficial effect of adopting the above technical solution is that the utility model sets an oblique auxiliary light source on the side of the welding electrode, so that when shooting products with special shapes, it can fill in the oblique light to ensure the clarity of the shooting, so that the equipment can accurately capture the welding position. The auxiliary light source uses an illumination optical fiber, which can be made into a linear structure with a small size, convenient for installation and fixation on the step surface, easy to replace and repair, and a single optical fiber light source can have multiple light points with the same light-emitting characteristics at the same time, which is conducive to use in a configuration in a wider area. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the installation of the auxiliary light source of the utility model;

[0013] In the figure: 1. visual camera, 2. lens module, 3. welding head, 4. mounting plate, 5. optical fiber fixing block, 6. lighting optical fiber, 7. welding electrode, 8. electrode fixing seat, 9. side panel. DETAILED DESCRIPTION

[0014] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0015] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 the present invention can be understood according to specific circumstances.

[0016] An embodiment of the present utility model: Figure 1 and Figure 2 As shown, a visual welding mechanism with an auxiliary light source includes a visual camera 1, a welding head 3, a welding electrode 7 and an auxiliary light source; the front end of the visual camera 1 is connected to a lens module 2, the welding head 3 is connected to the front end of the lens module 2, the front end of the welding head 3 is connected to a mounting plate 4, an electrode fixing seat 8 is fixed under the mounting plate 4, and the welding electrode 7 is fixed on the electrode fixing seat 8; the electrode fixing seat 8 and the welding electrode 7 form a stepped axis with a decreasing diameter from top to bottom, and the auxiliary light source is obliquely arranged on the step surface formed by the electrode fixing seat 8 and the welding electrode 7. The utility model adds an oblique auxiliary light source to the side of the welding electrode 7, so that when shooting products with special shapes, it can fill in the oblique light to ensure the clarity of the shooting, so that the equipment can accurately capture the welding position.

[0017] In other specific embodiments of the present invention, the rest is the same as the above embodiments, except that: Figure 2 As shown, the auxiliary light source is an illumination optical fiber 6; an optical fiber fixing block 5 is fixed to the upper side edge of the electrode fixing seat 8, an oblique through hole is provided on the side of the welding electrode 7, one end of the illumination optical fiber 6 is connected to the optical fiber fixing block 5, and the other end is fixed in the oblique through hole of the welding electrode 7. The auxiliary light source uses an illumination optical fiber 6, and the optical fiber 6 can be made into a linear structure with a small size, which is convenient for installation and fixing on the step surface, easy to replace and maintain, and a single optical fiber light source can have multiple light points with the same light-emitting characteristics at the same time, which is conducive to use in a configuration in a wider area.

[0018] In other specific embodiments of the present invention, the rest is the same as the above embodiments, except that: Figure 2 As shown, the illumination optical fiber 6 is arranged at an inclined angle of 45°. 45° is a common fill light angle, and the inclination angle of the auxiliary light source can be adjusted according to the actual shape of the product.

[0019] In other specific embodiments of the present invention, the rest is the same as the above embodiments, except that: Figure 2 As shown, there are multiple illumination optical fibers 6, which are evenly arranged on the step surface formed by the electrode fixing seat 8 and the welding electrode 7. According to product requirements, multiple optical fibers can be added for supplementary lighting, generally not more than 2-4, and the inclination angles of the multiple optical fibers can be different to adapt to the diversity of products.

[0020] In other specific embodiments of the present invention, the rest is the same as the above embodiments, except that: Figure 1 As shown, the mounting plate 4 is L-shaped, and mounting holes are reserved on the side plate surface 9. The welding head part can be connected and fixed from the side, which is convenient for the assembly of the equipment.

[0021] Of course, the above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the main technical solution of the utility model should be included in the protection scope of the utility model.

Claims

1. A visual welding mechanism with an auxiliary light source, comprising a visual camera, a welding head, a welding electrode and an auxiliary light source; the front end of the visual camera is connected to a lens module, the welding head is connected to the front end of the lens module, the front end of the welding head is connected to a mounting plate, an electrode fixing seat is fixed under the mounting plate, and the welding electrode is mounted and fixed on the electrode fixing seat; It is characterized in that The electrode fixing seat and the welding electrode form a stepped axis whose diameter decreases from top to bottom, and the auxiliary light source is obliquely arranged on the stepped surface formed by the electrode fixing seat and the welding electrode.

2. A visual welding mechanism with an auxiliary light source according to claim 1, characterized in that: The auxiliary light source is an illumination optical fiber; an optical fiber fixing block is fixed on the upper side edge of the electrode fixing seat, an oblique through hole is opened on the side of the welding electrode, one end of the illumination optical fiber is connected to the optical fiber fixing block, and the other end is fixed in the oblique through hole of the welding electrode.

3. A visual welding mechanism with an auxiliary light source according to claim 2, characterized in that: The illumination optical fiber is arranged at an inclined angle of 45°.

4. A visual welding mechanism with an auxiliary light source according to claim 2, characterized in that: There are a plurality of illumination optical fibers which are evenly arranged circumferentially on the step surface formed by the electrode fixing seat and the welding electrode.

5. A visual welding mechanism with an auxiliary light source according to claim 1 or 2, characterized in that: The mounting plate is L-shaped, and mounting holes are reserved on the side plate surface.

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