Welding vision device and welding system

Abstract

The utility model relates to a welding visual device and a welding system. The welding visual device comprises a base and a protective cover arranged on the base, and a linear laser and an industrial camera are arranged in the protective cover; the protective cover comprises a shell and a turnover cover plate arranged on the front side of the shell, and the turnover cover plate is movably hinged to the shell; the base comprises a supporting block, and the supporting block is connected to the side, away from the overturning cover plate, of the shell. According to the welding visual device and the welding system, the visual field of the welding robot can be effectively widened, the cost of the visual device is reduced, and the influence of welding operation smoke dust on the camera can be effectively avoided.

Description

Technical Field

[0001] The present application relates to the technical field of welding machines, and in particular to a welding vision device and a welding system. Background Art

[0002] In the field of industrial automation, especially in welding operations, robots are widely used in various precision operations. The vision system provides the necessary visual information for the welding robot to ensure the accuracy of the welding operation. Existing industrial 3D cameras are mostly based on the principle of triangulation, which is expensive and often requires additional brackets during installation to ensure the field of view and structural stability, which limits the design and function realization of the robot.

[0003] At the same time, impurities such as smoke and dust in the welding operation environment can easily damage the camera lens and affect the imaging quality. Utility Model Content

[0004] The purpose of this application is to provide a welding vision device and a welding system, which can effectively broaden the field of view of the welding robot, reduce the cost of the vision device, and effectively avoid the impact of welding operation smoke on the camera.

[0005] In order to achieve the above-mentioned object, in a first aspect, the utility model provides a welding vision device, comprising a base and a protective cover arranged on the base, wherein a wire laser and an industrial camera are arranged inside the protective cover;

[0006] The protective cover comprises a shell and a flip cover plate arranged on the front side of the shell, and the flip cover plate is movably hinged on the shell;

[0007] The base comprises a support block connected to a side of the housing away from the flip cover.

[0008] In an optional embodiment, an electric push rod is provided in the middle of the shell, and connecting blocks are provided on the inner side wall of the flip cover and the telescopic end of the electric push rod, and the connecting blocks are hingedly connected by a transfer block.

[0009] In an optional embodiment, the line laser and the industrial camera are respectively arranged on both sides of the electric push rod, and the electric push rod is retracted along the width direction of the shell.

[0010] In an optional embodiment, the shooting direction of the industrial camera is parallel to the extension and retraction direction of the electric push rod, and the direction of the line laser is inclined to the extension and retraction direction of the electric push rod.

[0011] In an optional embodiment, the support block and the protective cover are separately provided and detachably connected, and the two are connected by a fastening bolt from top to bottom, and the nut of the fastening bolt is arranged inside the protective cover.

[0012] In an optional embodiment, the protective cover includes a top plate, a bottom plate, a back plate and side plates, and a hinge assembly is arranged between the top of the flip cover and the front end of the top plate, and the hinge assembly includes a hinge block fixedly connected to the top plate, and a hinge axis arranged between the hinge block and the flip cover.

[0013] In an optional embodiment, the top plate is detachably connected to the side plate and the back plate, the bottom plate is detachably connected to the side plate and the back plate, and avoidance grooves for installing connecting bolts are provided on the top plate and the bottom plate.

[0014] In an optional embodiment, a maintenance opening is provided at a position of the top plate opposite to the position of the line laser, and a maintenance cover is provided at the maintenance opening, and the maintenance cover is detachably connected to the top plate.

[0015] In a second aspect, the utility model provides a welding system, including a welding robot and a welding vision device as described in any one of the aforementioned embodiments.

[0016] In an optional embodiment, the support block comprises a Y-shaped support block mounted inverted on the welding robot, and the bottom of the Y-shaped support block is provided with an arc-shaped mounting groove matching the welding robot.

[0017] By setting up a protective cover, the industrial camera can be protected to prevent the smoke generated during the welding process from affecting the industrial camera.

[0018] By combining line lasers and industrial cameras, compared with existing industrial 3D cameras, it is possible to greatly reduce equipment costs and ensure the acquisition of visual information while meeting the requirements of visual system applications.

[0019] The shell included in the protective cover can be used to accommodate the installation of industrial cameras and line lasers. At the same time, a flip cover that is movably hinged on the shell and arranged on the front side of the shell can be opened and closed when the visual system is running and closed. It can be automatically opened when the camera takes a picture and automatically closed after the picture is taken.

[0020] The base includes a support block installed at the bottom of the shell, which can replace the fixing frame on the existing welding robot. By raising the installation height of the camera, the field of view is unobstructed, which facilitates the image acquisition operation.

[0021] Other features and advantages of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of the external structure of the welding vision device in this application;

[0024] Figure 2 It is a schematic diagram of the side view structure of the welding vision device in this application;

[0025] Figure 3 This is a schematic diagram of the internal structure of the protective cover in this application;

[0026] Figure 4 This is a schematic diagram of the internal structure of the protective cover in this application from another perspective.

[0027] icon:

[0028] 1-base; 11-support block; 12-fastening bolts; 13-arc-shaped mounting groove;

[0029] 2-protective cover; 2a-top plate; 2b-bottom plate; 2c-back plate; 2d-side plate;

[0030] 21-housing; 22-flip cover; 23-hinge block; 24-hinge shaft; 25-avoidance groove; 26-inspection port;

[0031] 3-line laser;

[0032] 4-Industrial cameras;

[0033] 5-electric push rod; 51-connecting block; 52-adapter block. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] In the description of this application, it should be noted that the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0036] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] The welding vision device and welding system in this application are mainly used for visual acquisition of the welding robot during the precision welding process. Specifically, by changing the supporting structure and the protective structure, the protection of the visual acquisition components and the improvement of the field of view obtained by the visual device are completed.

[0038] See also Figure 1-Figure 2 , and combined with Figure 3-Figure 4 The welding vision device in the utility model comprises a base 1 and a protective cover 2 arranged on the base 1, wherein a wire laser 3 and an industrial camera 4 are arranged inside the protective cover 2;

[0039] The protective cover 2 includes a shell 21 and a flip cover 22 disposed on the front side of the shell 21, and the flip cover 22 is movably hinged on the shell 21;

[0040] The base 1 includes a support block 11 , and the support block 11 is connected to a side of the housing 21 away from the flip cover 22 .

[0041] By setting up the protective cover 2, the line laser 3 and the industrial camera 4 can be accommodated and installed. The combination of the line laser 3 and the industrial camera 4 can equally replace the existing 3D camera and can provide the same level of visual acquisition. Compared with the existing 3D camera, it can greatly reduce the equipment cost and ensure the effective visual acquisition effect.

[0042] The protective cover 2 specifically includes a housing 21 and a flip cover 22 disposed on the front side of the housing 21. The flip cover 22 is mainly used to control the opening and closing of the front side of the housing 21, and is mainly used to automatically open the flip cover 22 when welding and taking photos, or automatically close the flip cover 22 after taking photos, so as to minimize the impact of welding smoke on the visual components. Based on the above, the flip cover 22 is movably hinged on the housing 21 and can be flexibly opened and closed.

[0043] The base 1 includes a support block 11, which is connected to the side of the shell 21 away from the flip cover 22. Through this arrangement, the support block 11 can support the rear side of the shell 21, reducing the mutual influence between the support and the flip cover 22.

[0044] From the perspective of enabling the flip cover 22 to be opened and closed, an electric push rod 5 is provided in the middle of the shell 21, and connecting blocks 51 are provided on the inner side wall of the flip cover 22 and the telescopic end of the electric push rod 5. The connecting block 51 is fixedly connected to the flip cover 22 and the electric push rod 5.

[0045] An adapter block 52 is provided between the connecting blocks 51 , and the adapter block 52 is hingedly connected to the connecting blocks 51 on both sides respectively. Through this arrangement, the electric push rod 5 can drive the flip cover plate 22 to open and close during the extension and retraction process, thereby realizing the opening and closing control on the shell 21 .

[0046] In order to protect the visual components, the line laser 3 and the industrial camera 4 are respectively arranged on both sides of the electric push rod 5. The electric push rod 5 is retracted along the width direction of the shell 21, which can shorten the moving stroke of the electric push rod 5 and ensure the effect of controlling the opening and closing of the flip cover 22.

[0047] Furthermore, the electric push rod 5 is arranged at the upper part of the shell 21, which can reduce the obstruction of the visual components. At the same time, the shooting direction of the industrial camera 4 is parallel to the extension direction of the electric push rod 5, and can take pictures in a straight line directly in front of the shell 21.

[0048] The line laser 3 in the utility model is mainly used to assist the industrial camera 4. During use, the line laser 3 is first projected, and the industrial camera 4 shoots the line projected by the line laser 3 on the welding target. Points at different heights have different coordinates on the camera imaging surface. Data processing is carried out in conjunction with existing software algorithms, which greatly reduces equipment costs while maintaining sufficient measurement accuracy and reliability. It is particularly suitable for use in high-demand welding environments.

[0049] In order to form the above process, the direction of the line laser 3 is inclined to the extension and retraction direction of the electric push rod 5, so that the line laser 3 can project the laser line at an inclined angle.

[0050] The support block 11 and the protective cover 2 in the utility model are separately arranged and detachably connected, which is convenient for assembly. Further, the support block 11 and the protective cover 2 are connected by a fastening bolt 12 from top to bottom, and the nut of the fastening bolt 12 is arranged inside the protective cover 2.

[0051] The protective cover 2 includes a top plate 2a, a bottom plate 2b, a back plate 2c and a side plate 2d. A hinge assembly is provided between the top of the flip cover 22 and the front end of the top plate 2a, and the electric push rod 5 can realize the opening and closing action of the flip cover 22 through the hinge assembly.

[0052] The hinge assembly includes a hinge block 23 fixedly connected to the top plate 2a, and a hinge shaft 24 arranged between the hinge block 23 and the flip cover 22. Through the mutual cooperation between the hinge block 23 and the hinge shaft 24, the flip cover 22 can be flipped relative to the shell 21.

[0053] From the perspective of assembly, the top plate 2a is detachably connected to the side plate 2d and the back plate 2c, and the bottom plate 2b is detachably connected to the side plate 2d and the back plate 2c. The split setting and the detachable connection angle can facilitate the assembly of the protective cover 2. Avoidance grooves 25 for installing connecting bolts are provided on the top plate 2a and the bottom plate 2b, which can provide installation operation space for the connecting bolts during the assembly process.

[0054] During the assembly process of the protective cover 2, the support block 11 is first connected to the welding robot, and the side panel 2d and the back panel 2c are connected to the bottom panel 2b. Then, the fastening bolts 12 are connected to the open structure to connect the protective cover 2 and the support block 11. At the same time, the flip cover 22 is connected to the top panel 2a to form a whole of the front side and the top. Finally, the top panel 2a is connected to the side panel 2d and the back panel 2c.

[0055] The electric push rod 5, the line laser 3 and the industrial camera 4 can be pre-connected with the top plate 2a and the bottom plate 2b. An inspection port 26 is provided at a position opposite to the line laser 3 on the top plate 2a. An inspection cover is provided at the inspection port 26. The inspection cover is detachably connected to the top plate 2a, so as to realize the operation and maintenance of the line laser 3.

[0056] The utility model also provides a welding system, comprising a welding robot and the welding vision device.

[0057] From the support perspective, the support block 11 includes a Y-shaped support block 11 inverted on the welding robot. The height of the support block 11 can be increased through the branching portion, thereby raising the installation height of the industrial camera 4 to achieve a technical effect of unobstructed vision.

[0058] The bottom of the Y-shaped support block 11 is provided with an arc-shaped mounting groove 13 that matches the welding robot, so that the Y-shaped support block 11 can directly replace the original fixing frame on the robot without affecting the function and operational flexibility of the original mechanical structure. The support block 11 can ensure the stability of the camera during the movement of the robot, avoid shaking and relative displacement, and there is no field of view obstruction.

[0059] The welding system in the utility model also includes a control module, and the welding robot, the line laser 3, the industrial camera 4 and the electric push rod 5 are all electrically connected to the control module. The control module can control the rhythm of each component to complete the opening and closing of the flip cover 22, the projection of the line laser 3 and the shooting action of the industrial camera 4.

[0060] By using a standard industrial camera 4 in conjunction with a line laser 3 and performing image processing through a software algorithm, a low-cost 3D vision system is formed, which can meet welding needs and greatly reduce equipment costs.

[0061] The automatically opening and closing flip cover 22 installed in front of the camera protects the camera lens from being affected by smoke and dust in the operating environment.

[0062] The welding system of the utility model can be widely used in the field of welding automation, and has significant practical value and broad market prospects.

[0063] It should be noted that, in the absence of conflict, the features in the embodiments of this application may be combined with each other.

[0064] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A welding vision device, characterized in that: It comprises a base and a protective cover arranged on the base, wherein a wire laser and an industrial camera are arranged inside the protective cover; The protective cover comprises a shell and a flip cover plate arranged on the front side of the shell, and the flip cover plate is movably hinged on the shell; The base comprises a support block connected to a side of the housing away from the flip cover.

2. The welding vision device according to claim 1, characterized in that: An electric push rod is arranged in the middle of the shell, and connecting blocks are arranged on the inner side wall of the flip cover and the telescopic end of the electric push rod. The connecting blocks are hingedly connected through a transfer block.

3. The welding vision device according to claim 2, characterized in that: The line laser and the industrial camera are respectively arranged on both sides of the electric push rod, and the electric push rod is telescopic along the width direction of the shell.

4. The welding vision device according to claim 2, characterized in that: The shooting direction of the industrial camera is parallel to the extension and retraction direction of the electric push rod, and the direction of the line laser is inclined to the extension and retraction direction of the electric push rod.

5. The welding vision device according to claim 1, characterized in that: The support block and the protective cover are separately arranged and detachably connected, and the two are connected by a fastening bolt from top to bottom, and the nut of the fastening bolt is arranged inside the protective cover.

6. The welding vision device according to claim 5, characterized in that: The protective cover includes a top plate, a bottom plate, a back plate and side plates. A hinge assembly is arranged between the top of the flip cover and the front end of the top plate. The hinge assembly includes a hinge block fixedly connected to the top plate, and a hinge shaft arranged between the hinge block and the flip cover.

7. The welding vision device according to claim 6, characterized in that: The top plate is detachably connected to the side plate and the back plate, the bottom plate is detachably connected to the side plate and the back plate, and both the top plate and the bottom plate are provided with avoidance grooves for installing connecting bolts.

8. The welding vision device according to claim 7, characterized in that: A maintenance opening is arranged at a position of the top plate opposite to the position of the line laser, and a maintenance cover is arranged at the maintenance opening, and the maintenance cover is detachably connected to the top plate.

9. A welding system, characterized in that: It comprises a welding robot and a welding vision device as described in any one of claims 1-8.

10. The welding system according to claim 9, characterized in that The support block comprises a Y-shaped support block which is inverted on the welding robot, and the bottom of the Y-shaped support block is provided with an arc-shaped installation groove which matches with the welding robot.

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