A laser welding device

Abstract

The utility model provides a kind of laser welding device, comprising: welding assembly, conveying assembly, detection component, handling assembly and correction component.Welding assembly is used to carry out laser welding to lens and shell, laser is realized angle precision adjustment by angle adjusting motor, lead screw and adjusting rod structure;First X direction conveying assembly is cooperated with first Y direction conveying assembly, for reciprocating transport lens and shell between each station;First detection component is arranged below X direction conveying assembly, for detecting the angle and position of lens and shell;The top of first handling assembly and second handling assembly is respectively provided with correction component, for automatically correcting lens and shell from top.The device can realize the automatic detection, automatic correction and multi-axis linkage laser welding of lens and shell, with high welding precision and efficiency, suitable for the automatic welding production of optical element.

Description

Technical Field

[0001] This utility model relates to the field of optical component assembly technology, specifically to a laser welding device. Background Technology

[0002] In the production and assembly of optical lens components, it is usually necessary to precisely position and fix the lens to the housing (top cover). Currently, in the field of automatic lens welding or assembly, some automation solutions have been adopted, such as using manual assistance or semi-automatic equipment to assemble the lens and top cover. Some production lines also use multi-station turntable structures to enable processes such as feeding, assembly, and welding to be carried out simultaneously at different stations, or use six-axis robots to achieve automatic picking, placing, positioning, and assembly of lenses.

[0003] The shortcomings of existing technology: 1. The original lens assembly used bolts and nuts for fixing, which made it inconvenient to adjust the angle; 2. Some processes require manual intervention or there is a lack of coordination between different equipment, resulting in low overall production efficiency and difficulty in meeting the efficiency and cycle time requirements of mass production; 3. Some manufacturers use glue to fix the lens, but glue bonding has problems such as long curing time, insufficient connection strength and durability; 4. The assembly scheme lacks precise visual guidance and angle correction mechanisms, resulting in limited assembly accuracy. The position and angle of the lens and the top cover are prone to deviation, leading to poor product performance consistency. Therefore, existing technologies have shortcomings and need further improvement. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a laser welding device.

[0005] To achieve the above objectives, the specific solution of this utility model is as follows: This utility model provides a laser welding device, comprising: Welding components are used to weld the lens and the housing. The first X-axis conveying component is located on one side of the welding component; The first Y-axis conveying assembly is disposed on the other side of the welding assembly and perpendicular to the first X-axis conveying assembly. The first X-axis conveying assembly is used to reciprocate the lens and housing between the welding assembly and the first Y-axis conveying assembly. A first detection component is provided below the first X-axis conveying component, which is used to check from below whether the angle and position between the lens and the housing meet the set requirements; A first transport component and a second transport component are disposed above the first Y-axis transport component; The first transport component is provided with a first correction component, and the second transport component is provided with a second correction component; The first and second correction components adjust the angle and position of the lens and housing from above, and cooperate with the first and second transport components to transport the lens and housing.

[0006] Furthermore, the welding assembly includes: a laser, a first Y-axis, a first Z-axis, a first R-axis, a first mounting plate, an angle adjustment motor, a first lead screw, a first nut, and a first adjusting rod; Lasers are used to generate laser light for welding. The laser is mounted on one end of the first adjusting rod, the middle of the first adjusting rod is rotatably mounted on the lower end of the first mounting plate, the other end of the first adjusting rod is mounted on the first nut, the first nut is mounted on the first lead screw, the output shaft of the angle adjusting motor is connected to the first lead screw, and is used to drive the first lead screw to rotate and thus drive the first adjusting rod to move, thereby adjusting the angle of the laser. The first mounting plate is installed at the lower end of the first R-axis and is driven to rotate by the first R-axis; The first R-axis is mounted on the first Z-axis, and the first Z-axis drives the first R-axis and the first mounting plate mounted on the first R-axis to move up and down. The first Z-axis is mounted on the first Y-axis, and the first Y-axis drives the first Z-axis to move back and forth in the Y-axis direction.

[0007] Furthermore, the first mounting plate is also equipped with a first camera, a laser height sensor, and a dust extraction hood; The laser is equipped with a welding joint protective cover at its front end.

[0008] Furthermore, the first conveying component includes a second X-axis and a second Y-axis; The second Y-axis is mounted on the second X-axis, and the second X-axis drives the second Y-axis to reciprocate in the X-axis direction; The first correction component is mounted on the second Y-axis, which is used to drive the second correction component to reciprocate in the Y-axis direction.

[0009] Furthermore, the first correction component includes a second Z-axis, a second mounting plate, a first gripper, and a second camera; The second Z-axis is mounted on the second Y-axis, and the second Y-axis drives the second Z-axis to reciprocate in the Y-axis direction; The second mounting plate is mounted on the second Z-axis, which is used to drive the second mounting plate to move up and down reciprocally in the Z-axis direction. The first gripper and the second camera are mounted on the second mounting plate.

[0010] Furthermore, the second transport component includes a third Y-axis; The second correction component is mounted on the third Y-axis, which is used to drive the second correction component to reciprocate in the Y-axis direction.

[0011] Furthermore, the second correction component includes a third Z-axis, a third mounting plate, a second R-axis, a third camera, and a second gripper; The third Z-axis is mounted on the third Y-axis, and the third Y-axis is used to drive the third Z-axis to reciprocate in the Y-axis direction. The third mounting plate is mounted on the third Z-axis, which is used to drive the third mounting plate to move up and down reciprocally in the Z-axis direction. The second R-axis and the third camera are mounted on the third mounting plate; The second gripper is mounted on the second R-axis.

[0012] Furthermore, the first X-direction conveying assembly includes several groups for simultaneous welding and transport.

[0013] The technical solution of this utility model has the following beneficial effects: 1. It achieves full automation of the laser welding process, eliminating the need for manual intervention and significantly improving production efficiency and yield; 2. By adopting a visual positioning and lens angle correction mechanism, the assembly accuracy is significantly improved, ensuring that the installation position and angle of each lens and the top cover are consistent, and the product consistency is greatly improved; 3. Laser welding replaces traditional glue bonding, resulting in faster welding speed and higher connection strength. This ensures the reliability of the connection between the lens and the top cover and avoids the defects of glue processes such as slow curing and easy aging. 4. The equipment has a high degree of integration. The double-layer return conveyor line is integrated with each functional module, which has a small footprint. The modules work together stably, which helps to improve the overall production capacity and stability of the equipment. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention; Figure 2 This is a perspective view of the welding assembly of this utility model; Figure 3 This is a perspective view of the first X-axis conveying component and the first detection component of this utility model from a bottom angle; Figure 4 This is a top-view perspective view of the first X-axis conveying component and the first detection component of this utility model; Figure 5 This is a perspective view of the first transport component, the second transport component, the first correction component, and the second correction component of this utility model; Attached image captions: 1. Welding assembly; 2. First X-axis conveying assembly; 3. First Y-axis conveying assembly; 4. First detection assembly; 5. First handling assembly; 6. Second handling assembly; 7. First correction assembly; 8. Second correction assembly; 9. Laser; 10. First Y-axis; 11. First Z-axis; 12. First R-axis; 13. First mounting plate; 14. Angle adjustment motor; 15. First lead screw; 16. First nut; 17. First adjusting rod; 18. First camera; 19. Laser height sensor; 20. Dust extraction hood; 21. Welding joint protective cover; 22. Second X-axis; 23. Second Y-axis; 24. Second Z-axis; 25. Second mounting plate; 26. First gripper; 27. Second camera; 28. Third Y-axis; 29. ​​Third Z-axis; 30. Third mounting plate; 31. Second R-axis; 32. Third camera; 33. Second gripper. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0016] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0018] In the description of this embodiment, the terms "upper," "lower," "front," "rear," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0019] Combination Figures 1-5 As shown, this utility model provides a laser welding device, comprising: Welding assembly 1 is used for welding the lens and the housing; The first X-axis conveying component 2 is disposed on one side of the welding component 1; The first Y-axis conveying assembly 3 is disposed opposite to the welding assembly 1 on the other side of the welding assembly 1 and perpendicular to the first X-axis conveying assembly 2. The first X-axis conveying assembly 2 is used to reciprocate the lens and the housing between the welding assembly 1 and the first Y-axis conveying assembly 3. A first detection component 4 is provided below the first X-direction conveying component 2, which is used to check from below whether the angle and position between the lens and the housing meet the set requirements; A first transport component 5 and a second transport component 6 are disposed above the first Y-axis transport component 3; The first conveying component 5 is provided with a first correction component 7, and the second conveying component 6 is provided with a second correction component 8; The first correction component 7 and the second correction component 8 adjust the angle and position of the lens and housing from above, and cooperate with the first transport component 5 and the second transport component 6 to transport the lens and housing.

[0020] The welding assembly 1 includes: a laser 9, a first Y-axis 10, a first Z-axis 11, a first R-axis 12, a first mounting plate 13, an angle adjustment motor 14, a first lead screw 15, a first nut 16, and a first adjusting rod 17; Laser 9 is used to generate laser light for welding; The laser 9 is mounted on one end of the first adjusting rod 17. The middle part of the first adjusting rod 17 is rotatably mounted on the lower end of the first mounting plate 13. The other end of the first adjusting rod 17 is mounted on the first nut 16. The first nut 16 is mounted on the first lead screw 15. The output shaft of the angle adjusting motor 14 is connected to the first lead screw 15 and is used to drive the first lead screw 15 to rotate, thereby driving the first adjusting rod 17 to move, thereby adjusting the angle of the laser 9. The first mounting plate 13 is mounted on the lower end of the first R-axis 12 and is driven to rotate by the first R-axis 12; The first R-axis 12 is mounted on the first Z-axis 11, and the first Z-axis 11 drives the first R-axis 12 and the first mounting plate 13 mounted on the first R-axis 12 to move up and down. The first Z-axis 11 is mounted on the first Y-axis 10, and the first Y-axis 10 drives the first Z-axis 11 to move back and forth in the Y-axis direction.

[0021] The first mounting plate 13 is also equipped with a first camera 18, a laser height sensor 19, and a dust extraction hood 20; The laser 9 is provided with a welding joint protective cover 21 at its front end.

[0022] The first transport component 5 includes a second X-axis 22 and a second Y-axis 23; The second Y-axis 23 is mounted on the second X-axis 22, and the second X-axis 22 drives the second Y-axis 23 to reciprocate in the X-axis direction; The first correction component 7 is mounted on the second Y-axis 23, which is used to drive the second correction component 7 to reciprocate in the Y-axis direction.

[0023] The first correction component 7 includes a second Z-axis 24, a second mounting plate 25, a first gripper 26, and a second camera 27; The second Z-axis 24 is mounted on the second Y-axis 23, and the second Y-axis 23 drives the second Z-axis 24 to reciprocate in the Y-axis direction; The second mounting plate 25 is mounted on the second Z-axis 24, and the second Z-axis 24 is used to drive the second mounting plate 25 to move up and down reciprocally in the Z-axis direction. The first gripper 26 and the second camera 27 are mounted on the second mounting plate 25.

[0024] The second transport assembly 6 includes a third Y-axis 28; The second correction component 8 is mounted on the third Y-axis 28, which is used to drive the second correction component 8 to reciprocate in the Y-axis direction.

[0025] The second correction component 8 includes a third Z-axis 29, a third mounting plate 30, a second R-axis 31, a third camera 32, and a second gripper 33; The third Z-axis 29 is mounted on the third Y-axis 28, and the third Y-axis 28 is used to drive the third Z-axis 29 to reciprocate in the Y-axis direction. The third mounting plate 30 is mounted on the third Z-axis 29, and the third Z-axis 29 is used to drive the third mounting plate 30 to move up and down reciprocally in the Z-axis direction. The second R-axis 31 and the third camera 32 are mounted on the third mounting plate 30; The second gripper 33 is mounted on the second R-axis 31.

[0026] The first X-direction conveying assembly 2 includes several groups for synchronous welding and transportation.

[0027] The principle of this utility model is as follows: Workpiece loading and conveying stage: The lens and housing are sequentially fed into the welding area by the first X-axis conveying assembly 2. The first X-axis conveying assembly 2 can reciprocate between the welding assembly 1 and the first Y-axis conveying assembly 3 to achieve continuous material supply.

[0028] Testing and calibration phase: Once the lens and housing arrive at the inspection station, the first inspection component 4 detects their angle and positional deviations from below. After the inspection data is analyzed by the control system, the correction mechanisms on the first transport component 5 and the second transport component 6 are controlled to make real-time adjustments. The first correction component 7 and the second correction component 8 correct the angle and position of the workpiece from above, so that the lens and housing are kept in the ideal welding posture.

[0029] Welding stage: The corrected workpiece is transported to the welding station. The laser 9 in welding assembly 1 moves under multi-axis coordinated control of the first Y-axis 10, first Z-axis 11, and first R-axis 12. The laser 9 adjusts the laser incident angle via an angle adjustment motor 14 and a lead screw mechanism (including a first lead screw 15, a first nut 16, and a first adjusting rod 17) to adapt to different weld point positions. The laser beam emitted by the laser 9 is focused and applied to the joint between the lens and the housing to complete the welding. During the welding process, the laser height sensor 19 monitors the height information in real time, the first camera 18 performs visual calibration of the weld point position, the dust extraction hood 20 promptly removes fumes, and the welding joint protective cover 21 provides protection to ensure laser safety and weld point cleanliness.

[0030] Post-weld inspection and handling stage: After welding is completed, the workpiece is moved by the second transport component 6 to the inspection or unloading area. The system can then use the second camera 27 or the third camera 32 to inspect the weld again and determine the welding quality. Subsequently, the workpiece is automatically transferred to the next process or receiving station via the first gripper 26 or the second gripper 33, realizing automated flow.

[0031] Looping operation: The first X-axis conveying component 2 is configured with multiple sets of structures, enabling simultaneous welding, handling, and inspection of multiple workpieces. Through the coordinated operation of the welding component 1, the first handling component 5, the second handling component 6, and related correction and inspection mechanisms, the entire machine has a short cycle time and high efficiency.

[0032] Through the above steps, this device achieves full-process control of automatic detection, automatic correction, automatic welding and automatic transfer of workpieces, ensuring accurate welding position and stable welding strength between the lens and the housing, and significantly improving production efficiency and product consistency.

[0033] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the protection scope of the present utility model.

Claims

1. A laser welding apparatus, characterized in that, include: Welding components are used to weld the lens and the housing. The first X-axis conveying component is located on one side of the welding component; The first Y-axis conveying assembly is disposed on the other side of the welding assembly and perpendicular to the first X-axis conveying assembly. The first X-axis conveying assembly is used to reciprocate the lens and housing between the welding assembly and the first Y-axis conveying assembly. A first detection component is provided below the first X-axis conveying component, which is used to check from below whether the angle and position between the lens and the housing meet the set requirements; A first transport component and a second transport component are disposed above the first Y-axis transport component; The first transport component is provided with a first correction component, and the second transport component is provided with a second correction component; The first and second correction components adjust the angle and position of the lens and housing from above, and cooperate with the first and second transport components to transport the lens and housing.

2. The laser welding apparatus according to claim 1, characterized in that, The welding assembly includes: a laser, a first Y-axis, a first Z-axis, a first R-axis, a first mounting plate, an angle adjustment motor, a first lead screw, a first nut, and a first adjusting rod; Lasers are used to generate laser light for welding. The laser is mounted on one end of the first adjusting rod, the middle of the first adjusting rod is rotatably mounted on the lower end of the first mounting plate, the other end of the first adjusting rod is mounted on the first nut, the first nut is mounted on the first lead screw, the output shaft of the angle adjusting motor is connected to the first lead screw, and is used to drive the first lead screw to rotate and thus drive the first adjusting rod to move, thereby adjusting the angle of the laser. The first mounting plate is installed at the lower end of the first R-axis and is driven to rotate by the first R-axis; The first R-axis is mounted on the first Z-axis, and the first Z-axis drives the first R-axis and the first mounting plate mounted on the first R-axis to move up and down. The first Z-axis is mounted on the first Y-axis, and the first Y-axis drives the first Z-axis to move back and forth in the Y-axis direction.

3. The laser welding apparatus according to claim 2, characterized in that, The first mounting plate is also equipped with a first camera, a laser height sensor, and a dust extraction hood; The laser is equipped with a welding joint protective cover at its front end.

4. The laser welding apparatus according to claim 1, characterized in that, The first conveying component includes a second X-axis and a second Y-axis; The second Y-axis is mounted on the second X-axis, and the second X-axis drives the second Y-axis to reciprocate in the X-axis direction; The first correction component is mounted on the second Y-axis, which is used to drive the second correction component to reciprocate in the Y-axis direction.

5. The laser welding apparatus according to claim 4, characterized in that, The first correction component includes a second Z-axis, a second mounting plate, a first gripper, and a second camera; The second Z-axis is mounted on the second Y-axis, and the second Y-axis drives the second Z-axis to reciprocate in the Y-axis direction; The second mounting plate is mounted on the second Z-axis, which is used to drive the second mounting plate to move up and down reciprocally in the Z-axis direction. The first gripper and the second camera are mounted on the second mounting plate.

6. The laser welding apparatus according to claim 1, characterized in that, The second transport component includes a third Y-axis; The second correction component is mounted on the third Y-axis, which is used to drive the second correction component to reciprocate in the Y-axis direction.

7. The laser welding apparatus according to claim 6, characterized in that, The second correction assembly includes a third Z-axis, a third mounting plate, a second R-axis, a third camera, and a second gripper; The third Z-axis is mounted on the third Y-axis, and the third Y-axis is used to drive the third Z-axis to reciprocate in the Y-axis direction. The third mounting plate is mounted on the third Z-axis, which is used to drive the third mounting plate to move up and down reciprocally in the Z-axis direction. The second R-axis and the third camera are mounted on the third mounting plate; The second gripper is mounted on the second R-axis.

8. The laser welding apparatus according to claim 1, characterized in that, The first X-axis conveying assembly comprises several groups for simultaneous welding and transport.

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