A laser brazing welding robot

Abstract

A laser hard welding robot includes a fixed base, an upper support base, a bottom drive motor, a side drive motor, and a lower support arm. The fixed base has a bottom support base on its top, and the top of the bottom support base is connected to the upper support base. The upper support base slides on the surface of the bottom support base. The upper support base has a bottom motor mounting groove inside, and the bottom drive motor is inserted into the bottom motor mounting groove and fixed. The transmission shaft of the bottom drive motor is fixedly connected to the bottom support base. The top of the upper support base has a side motor support column, and the top of the side motor support column has a side motor mounting platform. The side drive motor is inserted into the side motor mounting platform and fixed. The side of the side motor mounting platform is provided with a lower support arm, and the bottom of the lower support arm has a lower support arm connector. The transmission shaft of the side drive motor is fixedly connected to the lower support arm connector.

Description

Technical Field

[0001] This utility model relates to the field of laser welding, and in particular to a laser hard welding robot. Background Technology

[0002] An existing patent (publication number: CN117817118A) proposes a laser hard welding robot, including a multi-axis robotic arm; a laser body connected to the multi-axis robotic arm; the laser body includes a laser head for emitting laser light; however, this device "when welding, the protective gas tube introduces protective gas between the sleeve and the laser head, and sprays it out from the end of the sleeve." The coverage of the protective gas sprayed from the top is limited, which affects the protective effect of the weld seam that is cooling after welding, and may cause the weld seam to oxidize due to contact with oxygen during the cooling process, affecting the welding effect. Summary of the Invention

[0003] This invention addresses the aforementioned shortcomings of existing technologies by providing a laser hard welding robot that, during laser hard welding operations, utilizes an auxiliary air jet pipe located on the side of the laser welding nozzle. This auxiliary air jet pipe allows for the input of more protective gas to the welding point from the side during the laser welding process. The inclined design of the auxiliary air jet pipe ensures that the welded joint is continuously protected and cooled by sufficient protective gas, preventing localized oxidation of the weld and enhancing the welding effect.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A laser hard welding robot includes a fixed base, an upper support base, a bottom drive motor, a side drive motor, and a lower support arm. The fixed base has a bottom support base on its top, and the top of the bottom support base is connected to the upper support base. The upper support base slides on the surface of the bottom support base. The upper support base has a bottom motor mounting groove inside, and the bottom drive motor is inserted into the bottom motor mounting groove and fixed. The drive shaft of the bottom drive motor is fixedly connected to the bottom support base. The top of the upper support base has a side motor support column, and the top of the side motor support column has a side motor mounting platform. The side drive motor is inserted into the side motor mounting platform and fixed. The side of the side motor mounting platform is provided with a lower bearing arm. The bottom of the lower bearing arm has a lower bearing arm connector. The drive shaft of the side drive motor is fixedly connected to the lower bearing arm connector. The top of the lower bearing arm is provided with an upper bearing arm docking platform. The top of the upper bearing arm docking platform is provided with an upper bearing arm connector. The side of the upper bearing arm connector away from the lower bearing arm has a middle motor connection groove. The middle angle adjustment motor is inserted into the middle motor connection groove and fixed. The side of the upper bearing arm connector away from the lower bearing arm is provided with an upper bearing arm. The side of the upper bearing arm close to the upper bearing arm connector has a middle motor connector.

[0006] The intermediate angle adjusting motor has a drive shaft that is fixedly connected to the intermediate motor connector. The upper support arm has a welding platform connector on the side away from the upper support arm connector. The welding platform connector has an upper motor mounting groove inside. The upper angle adjusting motor is inserted into the upper motor mounting groove and fixed. A welding head support platform is provided on the side of the welding platform connector away from the upper support arm. An upper motor connecting platform is provided on the side of the welding head support platform close to the welding platform connector. The drive shaft of the upper angle adjusting motor is fixedly connected to the upper motor connecting platform.

[0007] The welding head support platform has a welding head connection platform on the side away from the upper motor connection platform. The welding head is fixedly connected to the side of the welding head connection platform. The bottom of the welding head has a laser welding nozzle. An auxiliary clamp is provided on the side of the laser welding nozzle. The top of the auxiliary clamp has a clamp connecting groove. The clamp connecting groove is adapted to the laser welding nozzle. The clamp connecting groove is connected to the laser welding nozzle and is sleeved on the outside of the laser welding nozzle.

[0008] Beneficial effects: 1. When performing laser hard welding operations, the auxiliary air jet pipe set on the side of the laser welding nozzle allows more protective gas to be input to the welding point from the side during the laser welding operation. The inclined design of the auxiliary air jet pipe ensures that the welded joint is continuously protected and cooled by sufficient protective gas, avoiding local oxidation of the weld and increasing the welding effect.

[0009] 2. This utility model has a device internally equipped with a bottom drive motor, a side drive motor, a middle angle adjustment motor, and an upper angle adjustment motor for rotation adjustment, enabling the device to rotate at multiple angles. This allows the device to complete welding operations with various complex trajectories and makes it suitable for complex welding operations on various parts.

[0010] 3. The electrical box, power supply cable, lower support arm and other parts of this utility model are all concentrated above the fixed base, so that the overall center of gravity of the device is closer to the upper part of the fixed base. This reduces the tilting moment of the fixed base during the welding process, reduces the overall risk of the device tipping over and increases the safety of the device. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a laser hard welding robot according to the present invention.

[0012] Figure 2 This is a diagram showing the installation state of the bottom drive motor described in this utility model.

[0013] Figure 3 This is a diagram showing the installation state of the side drive motor described in this utility model.

[0014] Figure 4This is a diagram showing the installation state of the mid-angle adjustment motor described in this utility model.

[0015] Figure 5 This is a diagram showing the installation state of the upper angle adjustment motor described in this utility model.

[0016] Figure 6 This is a diagram showing the installation state of the auxiliary clamping piece described in this utility model. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0018] Example 1:

[0019] A laser hard welding robot includes a fixed base 1, an upper support base 3, a bottom drive motor 5, a side drive motor 7, and a lower support arm 8. The fixed base 1 has a bottom support base 2 at its top, and the top of the bottom support base 2 is connected to the upper support base 3. The upper support base 3 slides on the surface of the bottom support base 2. The upper support base 3 has a bottom motor mounting groove 4 inside, into which the bottom drive motor 5 is inserted and fixed. The device is internally equipped with a bottom drive motor 5, a side drive motor 7, a mid-angle adjustment motor 26, and an upper angle adjustment motor 28 for rotational adjustment, allowing the device to rotate at multiple angles. This enables the device to complete welding operations with various complex trajectories, making it suitable for complex welding operations on various parts. The bottom drive motor 5 has a drive shaft fixedly connected to the bottom support base 2. The top of the upper support base 3 has a side drive motor... The machine support column 23 has a side motor mounting platform 6 at its top. A side drive motor 7 is inserted into the side motor mounting platform 6 and fixed. A lower bearing arm 8 is provided on the side of the side motor mounting platform 6. A lower bearing arm connector 9 is provided at the bottom of the lower bearing arm 8. The drive shaft of the side drive motor 7 is fixedly connected to the lower bearing arm connector 9. An upper bearing arm docking platform 14 is provided at the top of the lower bearing arm 8. An upper bearing arm connector 15 is provided at the top of the upper bearing arm connector 14. A middle motor connecting groove 25 is provided on the side of the upper bearing arm connector 15 away from the lower bearing arm 8. A middle angle adjusting motor 26 is inserted into the middle motor connecting groove 25 and fixed. An upper bearing arm 17 is provided on the side of the upper bearing arm connector 15 away from the lower bearing arm 8. A middle motor connector 24 is provided on the side of the upper bearing arm 17 close to the upper bearing arm connector 15.

[0020] Example 2:

[0021] The angle-adjustable motor 26 of this utility model has a transmission shaft fixedly connected to a motor connector 24. The upper support arm 17 has a welding platform connector 18 on the side away from the upper support arm connector 15. The welding platform connector 18 has an upper motor mounting groove 27 inside. The upper angle-adjustable motor 28 is inserted into the upper motor mounting groove 27 and fixed. A welding head support platform 19 is provided on the side of the welding platform connector 18 away from the upper support arm 17. The side of the welding head support platform 19 close to the welding platform connector 18 has an upper motor connecting platform 20. The transmission shaft of the upper angle-adjustable motor 28 is fixedly connected to the upper motor connecting platform 20.

[0022] Example 3:

[0023] The welding head support platform 19 of this utility model has a welding head connection platform 21 on the side away from the upper motor connection platform 20. The welding head 22 is fixedly connected to the side of the welding head connection platform 21. The bottom of the welding head 22 has a laser welding nozzle 29. When performing laser hard welding, the auxiliary air jet pipe 33 set on the side of the laser welding nozzle 29 can input more protective gas to the welding point from the side during the laser welding operation. Through the inclined design of the auxiliary air jet pipe 33, the welded joint is continuously protected and cooled by sufficient protective gas, avoiding local oxidation of the weld and increasing the welding effect. The side of the laser welding nozzle 29 is provided with an auxiliary clamp 30. The top of the auxiliary clamp 30 has a clamp connecting groove 31. The clamp connecting groove 31 is adapted to the laser welding nozzle 29 and is connected to the laser welding nozzle 29. The clamp connecting groove 31 is sleeved on the outside of the laser welding nozzle 29.

[0024] Example 4:

[0025] The auxiliary clamp 30 of this utility model has an auxiliary air pipe connecting platform 32 at its bottom. The auxiliary air pipe connecting platform 32 is designed with a 135° inclination. The auxiliary air pipe 33 is inserted into the auxiliary air pipe 33 and fixed. The intersection of the central axis of the auxiliary air pipe 33 and the central axis of the upper motor connecting platform 20 is located at the lower part of the laser welding nozzle 29. The side of the upper support arm connector 15 has an electrical box 16. The electrical box 16, power supply cable 12, lower support arm 8 and other parts are all concentrated above the fixed base 1, so that the overall center of gravity of this device is closer to the upper part of the fixed base 1, thereby reducing the tilting torque of the fixed base 1 during the welding process, reducing the overall risk of tipping over of this device, and increasing the safety of this device. The side of the lower support arm 8 has a side power supply cable clamp 10.

[0026] Example 5:

[0027] The side power supply cable clamp 10 of this utility model is connected to the power supply cable 12 in the middle, and the top of the power supply cable 12 is connected to the electrical box 16. The side of the side power supply cable clamp 10 has a side gas supply cable clamp 11, the middle of the side gas supply cable clamp 11 is connected to the gas supply cable 13, and the top of the gas supply cable 13 is connected to the welding head connecting platform 21.

[0028] Example 6:

[0029] The installation steps of this utility model are as follows: Connect the top of the bottom support 2 of the fixed base 1 to the upper support 3; insert the bottom drive motor 5 into the bottom motor mounting slot 4 of the upper support 3 and fix it; fix the drive shaft of the bottom drive motor 5 to the bottom support 2; insert the side drive motor 7 into the side motor mounting platform 6 of the upper support 3 and fix it; fix the drive shaft of the side drive motor 7 to the lower support arm connector 9 of the lower support arm 8; insert the middle angle adjustment motor 26 into the middle motor connecting slot 25 of the lower support arm 8; fix the drive shaft of the middle angle adjustment motor 26 to the middle motor connector 24 of the upper support arm 17; insert the upper angle adjustment motor 28 into the upper motor mounting slot 27 of the upper support arm 17 and fix it; fix the drive shaft of the upper angle adjustment motor 28 to the welding head support platform 19. The upper motor connecting platform 20 is fixedly connected. The side of the welding head connecting platform 21 of the welding head bearing platform 19 is fixedly connected to the welding head 22. The clamp connecting groove 31 of the auxiliary clamp 30 is fitted onto the outside of the laser welding nozzle 29 of the welding head 22 and fixedly connected. The auxiliary air jet pipe 33 is inserted into the auxiliary air pipe connecting platform 32 of the auxiliary clamp 30 and fixedly connected. The side of the upper bearing arm connector 15 is fixedly connected to the electrical box 16. The side of the lower bearing arm 8 is fixedly connected to the side power supply cable clamp 10. The inside of the side power supply cable clamp 10 is fixedly connected to the power supply cable 12. The top of the power supply cable 12 is fixedly connected to the electrical box 16. The side of the side power supply cable clamp 10 is fixedly connected to the side air supply cable clamp 11. The inside of the side air supply cable clamp 11 is fixedly connected to the air supply cable 13. The top of the air supply cable 13 is fixedly connected to the welding head 22. The installation of this device is now complete.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A laser-brazing welding robot, characterized in that The structure includes a fixed base (1), an upper support base (3), a bottom drive motor (5), a side drive motor (7), and a lower support arm (8). The fixed base (1) has a bottom support base (2) at its top, and the top of the bottom support base (2) is connected to the upper support base (3). The upper support base (3) slides on the surface of the bottom support base (2). The upper support base (3) has a bottom motor mounting groove (4) inside, and the bottom drive motor (5) is inserted into the bottom motor mounting groove (4) and fixed. The drive shaft of the bottom drive motor (5) is fixedly connected to the bottom support base (2). The top of the upper support base (3) has a side motor support column (23), and the top of the side motor support column (23) has a side motor mounting platform (6). The side drive motor (7) is inserted into the side motor mounting platform (6) and fixed. 6) A lower bearing arm (8) is provided on the side. The bottom of the lower bearing arm (8) has a lower bearing arm connector (9). The transmission shaft of the side drive motor (7) is fixedly connected to the lower bearing arm connector (9). The top of the lower bearing arm (8) has an upper bearing arm docking platform (14). The top of the upper bearing arm docking platform (14) has an upper bearing arm connector (15). The side of the upper bearing arm connector (15) away from the lower bearing arm (8) has a middle motor connection groove (25). The middle angle adjustment motor (26) is inserted into the middle motor connection groove (25) and fixed. The side of the upper bearing arm connector (15) away from the lower bearing arm (8) has an upper bearing arm (17). The side of the upper bearing arm (17) close to the upper bearing arm connector (15) has a middle motor connector (24).

2. A laser-brazing welding robot according to claim 1, characterized in that The middle angle adjusting motor (26) has a transmission shaft that is fixedly connected to the middle motor connector (24). The upper support arm (17) has a welding platform connector (18) on the side away from the upper support arm connector (15). The welding platform connector (18) has an upper motor mounting groove (27) inside. The upper angle adjusting motor (28) is inserted into the upper motor mounting groove (27) and fixed. The welding platform connector (18) has a welding head support platform (19) on the side away from the upper support arm (17). The welding head support platform (19) has an upper motor connecting platform (20) on the side close to the welding platform connector (18). The transmission shaft of the upper angle adjusting motor (28) is fixedly connected to the upper motor connecting platform (20).

3. The laser hard welding robot according to claim 2, characterized in that: The welding head support platform (19) has a welding head connection platform (21) on the side away from the upper motor connection platform (20). The welding head (22) is fixedly connected to the side of the welding head connection platform (21). The bottom of the welding head (22) has a laser welding nozzle (29). An auxiliary clamp (30) is provided on the side of the laser welding nozzle (29). The top of the auxiliary clamp (30) has a clamp connecting groove (31). The clamp connecting groove (31) is adapted to the laser welding nozzle (29). The clamp connecting groove (31) is connected to the laser welding nozzle (29). The clamp connecting groove (31) is sleeved on the outside of the laser welding nozzle (29).

4. A laser-brazing welding robot according to claim 3, characterized in that The auxiliary clamp (30) has an auxiliary air pipe connection platform (32) at the bottom. The auxiliary air pipe (33) is inserted into the auxiliary air pipe (33) and fixed. The intersection of the central axis of the auxiliary air pipe (33) and the central axis of the upper motor connection platform (20) is located at the lower part of the laser welding nozzle (29). The upper bearing arm connector (15) has an electrical box (16) on its side, and the lower bearing arm (8) has a side power supply cable clamp (10) on its side.

5. A laser-brazing welding robot according to claim 3, characterized in that The side power supply cable clamp (10) is connected to the power supply cable (12) in the middle, and the top of the power supply cable (12) is connected to the electrical box (16). The side of the side power supply cable clamp (10) has a side gas supply cable clamp (11), the middle of the side gas supply cable clamp (11) is connected to the gas supply cable (13), and the top of the gas supply cable (13) is connected to the welding head connection table (21).

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