Intelligent mechanical arm for automatic welding

Abstract

The utility model relates to the technical field of welding equipment, in particular to an automatic welding intelligent mechanical arm which comprises a sliding groove, a first supporting frame and a second supporting frame are arranged at the two ends of the sliding groove respectively, and the bottom of the first supporting frame and the bottom of the second supporting frame are fixedly installed on the two sides of a welding platform respectively. The top of the first supporting frame and the top of the second supporting frame are each provided with an inserting groove, and a sliding block is slidably installed on the inner side of each sliding groove. The placing rack is movably inserted into the bottom of the sliding groove; wherein the two ends of the placing frame are movably inserted into inserting grooves in the tops of the first supporting frame and the second supporting frame respectively; the connecting frame is fixedly mounted at the front end and the rear end of the sliding block and penetrates through the upper portion of the sliding groove; wherein positioning mechanisms are fixedly mounted at the bottoms of the two connecting frames, and each positioning mechanism comprises a distance sensor and a locating visual sensor. The utility model solves the problems of long time consumption in seam alignment and time and labor waste in equipment size adjustment.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to an automatic welding intelligent robotic arm. Background Technique

[0002] A welding robotic arm is a highly automated device, and its application in the profile welding process greatly improves production efficiency. By precisely controlling welding parameters and motion trajectories, the robotic arm can achieve fast, consistent, and high-quality welding. Compared with traditional manual welding, robotic arm welding reduces human errors, increases welding speed, improves the working environment, and reduces the labor intensity of workers. In addition, the welding robotic arm can be programmed to adapt to different welding tasks, with high flexibility and adaptability, and is an indispensable tool in modern manufacturing.

[0003] After a large number of searches, the publication number CN210435588U discloses a pipe automatic welding robotic arm, including a bracket. The top of the bracket is welded with a first support arm. The inside of the first support arm is pin-connected with a second support arm through a rotating shaft. One end of the second support arm is pin-connected with an electric push rod through a rotating shaft. An installation disk is installed on the output shaft of the electric push rod. A welding torch is arranged at the bottom of the installation disk. One end of a spring is installed with a limiting plate. The bottom of the limiting plate is welded with a linkage rod. One end of the linkage rod is welded with a mounting plate. A first motor is installed at the bottom of the mounting plate through bolts. A grinding disc is installed on the output shaft of the first motor.

[0004] A cylinder body is arranged on one side of the installation disk of the above device. The spring in the cylinder body can squeeze the grinding disc against the pipe fitting. During welding, the first motor drives the grinding disc to grind the welding scar, so as to achieve the purpose of improving work efficiency and reducing the labor intensity of workers.

[0005] However, in welding operations, it is usually necessary to accurately butt-weld adjacent profiles to ensure the tightness of the weld and the overall quality of the welding. Traditionally, this process often relies on manual operation to align the welding equipment with the weld. Although this method can ensure a certain degree of accuracy, it also prolongs the preparation time before welding and limits the improvement of production efficiency. In addition, when there are large differences in the sizes of profiles, in order to adapt to different specifications of profiles, it is often necessary to replace the welding equipment as a whole. This replacement process is also time-consuming and further affects the continuity and efficiency of the production process. Therefore, an automatic welding intelligent robotic arm is proposed to solve the above problems. Content of the Utility Model

[0006] The purpose of the present utility model is to provide an automatic welding intelligent robotic arm, which has the advantages of automatically adjusting according to the weld position and modular design for convenient disassembly and size adjustment, and solves the problems of long time-consuming for seam alignment and time-consuming and laborious for equipment size adjustment.

[0007] To achieve the above object, the present utility model provides the following technical solution: an automatic welding intelligent robotic arm, including a chute, with a first support frame and a second support frame respectively provided at both ends of the chute. The bottoms of the first support frame and the second support frame are respectively fixedly installed on both sides of the welding platform. Plug-in slots are respectively opened at the tops of the first support frame and the second support frame. A slider is slidably installed inside the chute. It also includes a connecting frame and a placement frame;

[0008] The placement frame is movably inserted at the bottom of the chute; wherein, both ends of the placement frame are respectively movably inserted into the plug-in slots at the tops of the first support frame and the second support frame; the connecting frame is fixedly installed at the front and rear ends of the slider and passes through above the chute; wherein, positioning mechanisms are fixedly installed at the bottoms of both connecting frames, and the positioning mechanisms include distance sensors and positioning vision sensors.

[0009] Preferably, bearings are respectively embedded and installed by opening holes at both ends of the chute, and a lead screw is rotatably installed in the chute on the opposite side of the two bearings. In the design, holes are specially designed at both ends of the chute for embedding bearings. This design not only enhances the structural stability of the robotic arm, but also realizes high-precision linear motion control by rotatably installing the lead screw in the chute. The use of bearings reduces the friction during the movement of the robotic arm, improving the smoothness and accuracy of the movement.

[0010] Preferably, one end of the lead screw passes through the bearing and is drivingly installed with a driving motor, and the driving motor adopts a forward and reverse structure design. In the design, one end of the lead screw cleverly passes through the bearing and is connected with a driving motor. The motor adopts a forward and reverse structure design, which enables the robotic arm to be precisely controlled in two directions, greatly increasing the movement flexibility and adaptability of the robotic arm. The forward and reverse function is crucial for tracking complex welding paths, ensuring the efficiency and accuracy of the welding operation.

[0011] Preferably, a first mounting frame is fixedly installed on the first support frame, and a controller is fixedly installed on the first mounting frame. In the design, a first mounting frame is fixedly installed on the first support frame, and the controller is installed thereon. This integrated design makes the controller closely combined with the mechanical part of the robotic arm, facilitating centralized control and monitoring by the operator. The centralized layout of the controller helps to improve the response speed of the system and the convenience of operation, and is also convenient for maintenance and upgrade.

[0012] Preferably, a second mounting bracket is fixedly installed on the second support bracket, a positioning bracket is fixedly installed on the second mounting bracket, and the positioning bracket is fixedly connected to the driving motor. In the design, the second mounting bracket is installed on the second support bracket, and the positioning bracket is fixed thereon. The positioning bracket is fixedly connected to the driving motor. This design realizes the stability of the positioning bracket and the driving motor, ensuring the stability of the robotic arm during welding operations.

[0013] Preferably, the bottom of the slider passes through the chute and is fixedly installed with an electric telescopic rod through a screw. The bottom of the electric telescopic rod is fixedly installed with a mounting seat. The mounting seat is provided with a hole and a welding head is embedded therein. The bottom end of the welding head is on the same center line as the two positioning mechanisms. In the design, the bottom of the slider is fixedly installed with an electric telescopic rod through a screw. The bottom of the electric telescopic rod is provided with a mounting seat, and a welding head is embedded in the mounting seat. This design allows the welding head to be precisely adjusted in the Z-axis direction to adapt to welding workpieces of different thicknesses and shapes. The adjustment ability of the electric telescopic rod ensures the distance control between the welding head and the welding area, thereby improving the welding quality and consistency.

[0014] Preferably, the positioning mechanism is electrically connected to the controller, and the controller is installed in linkage with the driving motor, the electric telescopic rod, and the welding head. The positioning mechanism is electrically connected to the controller, and the controller is installed in linkage with the driving motor and the welding head. The design of this intelligent linkage system enables the entire welding process to be automated, reducing human intervention and improving the consistency and repeatability of welding. The application of the intelligent control system not only enhances the operation convenience but also enables the robotic arm to adapt to more complex welding tasks, improving production efficiency and welding quality. In the design, the positioning mechanism is electrically connected to the controller, and the controller is installed in linkage with the driving motor, the electric telescopic rod, and the welding head. The design of this intelligent linkage system enables the entire welding process to be automated, reducing human intervention and improving the consistency and repeatability of welding. The application of the intelligent control system not only enhances the operation convenience but also enables the robotic arm to adapt to more complex welding tasks, improving production efficiency and welding quality.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] The robotic arm in the present utility model is equipped with a positioning mechanism, which includes a distance sensor and a positioning vision sensor. These sensors can accurately identify the position of the weld seam and transmit the data to the controller in real time. Based on this data, the robotic arm automatically adjusts its position and posture to ensure that the welding head is precisely aligned with the weld seam. The automatic adjustment function ensures that the welding head always contacts the weld seam at the correct angle and position, reducing welding defects and improving welding quality. Without manual intervention, the seam alignment time is significantly reduced;

[0017] The design of the robotic arm adopts a modular concept. Components such as the sliding groove, the first support frame, the second support frame, the placement rack, and the connecting frame are all detachable and reconfigurable. This design allows for the quick replacement or adjustment of components to adapt to welding workpieces of different sizes and shapes, simplifying the equipment adjustment process. Specifically, the placement rack is movably inserted at the bottom of the sliding groove and can be movably inserted into the insertion slots at the tops of the first support frame and the second support frame, making the connection between the placement rack and the support frames simple and fast. The design of the connecting frame allows for fixation at both the front and rear ends of the slider, providing additional adjustment flexibility. The modular design enables the robotic arm to quickly adapt to different welding tasks, whether it is small-scale precision welding or large-scale structural component welding, and can be quickly adjusted in place. Description of the Drawings

[0018] Figure 1 It is a front view structural schematic diagram of the present utility model;

[0019] Figure 2 It is a sectional structural schematic diagram of the present utility model;

[0020] Figure 3 It is a structural schematic diagram of the slider connection of the present utility model;

[0021] Figure 4 It is a structural schematic diagram of the placement rack connection of the present utility model.

[0022] In the figure: 1. Controller; 2. First mounting rack; 3. First support frame; 4. Slider; 5. Sliding groove; 6. Second mounting rack; 7. Second support frame; 8. Mounting seat; 9. Insertion slot; 10. Lead screw; 11. Driving motor; 12. Positioning frame; 13. Electric telescopic rod; 14. Bearing; 15. Connecting frame; 16. Positioning mechanism; 17. Welding head; 18. Screw; 19. Placement rack. Detailed Embodiment

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1

[0025] As Figure 1 , Figure 2 , Figure 3 and Figure 4As shown in the figure, an embodiment provided by the present utility model is an automatic welding intelligent robotic arm, which includes a chute 5. At both ends of the chute 5, a first support frame 3 and a second support frame 7 are respectively provided. The bottoms of the first support frame 3 and the second support frame 7 are respectively fixedly installed on both sides of the welding platform. Plug-in slots 9 are opened at the tops of the first support frame 3 and the second support frame 7. A slider 4 is slidably installed inside the chute 5. It also includes a connecting frame 15 and a placement rack 19;

[0026] Specifically, the robotic arm is equipped with a positioning mechanism 16, which includes a distance sensor and a positioning vision sensor. These sensors can accurately identify the position of the weld seam and feed the data back to the controller 1 in real time. Based on this data, the robotic arm automatically adjusts its position and posture to ensure that the welding head 17 is precisely aligned with the weld seam. The automatic adjustment function ensures that the welding head 17 always contacts the weld seam at the correct angle and position, reducing welding defects and improving welding quality. Without manual intervention, the butt-joint time is significantly reduced;

[0027] The design of the robotic arm adopts a modular concept. Components such as the chute 5, the first support frame 3, the second support frame 7, the placement rack 19, and the connecting frame 15 are all detachable and reconfigurable. This design allows for the quick replacement or adjustment of components to adapt to welding workpieces of different sizes and shapes, simplifying the equipment adjustment process. Specifically, the placement rack 19 is movably inserted at the bottom of the chute 5 and can be movably inserted into the plug-in slots 9 at the tops of the first support frame 3 and the second support frame 7, making the connection between the placement rack and the support frame simple and fast. The design of the connecting frame 15 allows it to be fixed at both the front and rear ends of the slider 4, providing additional adjustment flexibility. The modular design enables the robotic arm to quickly adapt to different welding tasks. Whether it is small and precise welding or large structural component welding, it can be quickly adjusted in place.

[0028] Embodiment Two

[0029] To improve the stability of the welding head 17 during movement, as Figure 2 and Figure 3 shown, in this embodiment, holes are respectively opened at both ends of the chute 5 and bearings 14 are embedded and installed. A lead screw 10 is rotatably installed in the chute 5 on the opposite sides of the two bearings 14. In the design, holes are specifically designed at both ends of the chute 5, and these holes are used to embed the bearings 14. This design not only enhances the structural stability of the robotic arm but also realizes high-precision linear motion control by rotatably installing the lead screw 10 in the chute 5. The use of the bearings 14 reduces the friction during the movement of the robotic arm, improving the smoothness and accuracy of the movement.

[0030] Further, one end of the lead screw 10 passes through the bearing 14 and is drivingly installed with a driving motor 11, and the driving motor 11 is designed with a forward and reverse structure. In the design, one end of the lead screw 10 cleverly passes through the bearing 14 and is connected to the driving motor 11. This motor is designed with a forward and reverse structure, which enables the robotic arm to be precisely controlled in two directions, greatly increasing the movement flexibility and adaptability of the robotic arm. The forward and reverse function is crucial for realizing the tracking of complex welding paths, ensuring the efficiency and accuracy of the welding operation.

[0031] Further, a second mounting bracket 6 is fixedly installed on the second support bracket 7, a positioning bracket 12 is fixedly installed on the second mounting bracket 6, and the positioning bracket 12 is fixedly connected to the driving motor 11. In the design, the second mounting bracket 6 is installed on the second support bracket 7, and the positioning bracket 12 is fixed thereon, and the positioning bracket 12 is fixedly connected to the driving motor 11. This design realizes the stability of the positioning bracket 12 and the driving motor 11, ensuring the stability of the robotic arm during the welding operation.

[0032] Embodiment III

[0033] In order to achieve precise position control during the welding operation of the welding head 17, as Figure 1 and Figure 3 shown, in this embodiment, a first mounting bracket 2 is fixedly installed on the first support bracket 3, and a controller 1 is fixedly installed on the first mounting bracket 2. In the design, the first mounting bracket 2 is fixedly installed on the first support bracket 3, and the controller 1 is installed thereon. This integrated design enables the controller 1 to be closely combined with the mechanical part of the robotic arm, facilitating centralized control and monitoring by the operator. The centralized layout of the controller 1 helps to improve the response speed of the system and the convenience of operation, and also facilitates maintenance and upgrading.

[0034] Further, the bottom of the slider 4 passes through the chute 5 and is fixedly installed with an electric telescopic rod 13 through a screw 18. The bottom of the electric telescopic rod 13 is fixedly installed with a mounting seat 8. The mounting seat 8 is perforated and embedded with a welding head 17. The bottom end of the welding head 17 is on the same center line as the two positioning mechanisms 16. In the design, the bottom of the slider 4 is fixedly installed with an electric telescopic rod 13 through a screw 18. The bottom of the electric telescopic rod 13 is installed with a mounting seat 8, and the welding head 17 is embedded in the mounting seat 8. This design allows the welding head 17 to be precisely adjusted in the Z-axis direction to adapt to welding workpieces of different thicknesses and shapes. The adjustment ability of the electric telescopic rod 13 ensures the distance control between the welding head 17 and the welding area, thereby improving the quality and consistency of welding.

[0035] Furthermore, the positioning mechanism 16 is electrically connected to the controller 1, and the controller 1 is installed in linkage with the driving motor 11, the electric telescopic rod 13, and the welding head 17. The positioning mechanism 16 is electrically connected to the controller 1, and the controller 1 is installed in linkage with the driving motor 11 and the welding head 17. The design of this intelligent linkage system enables the entire welding process to be automated, reducing human intervention and improving the consistency and repeatability of welding. The application of the intelligent control system not only enhances the convenience of operation but also enables the robotic arm to adapt to more complex welding tasks, improving production efficiency and welding quality. In the design, the positioning mechanism 16 is electrically connected to the controller 1, and the controller 1 is installed in linkage with the driving motor 11, the electric telescopic rod 13, and the welding head 17. The design of this intelligent linkage system enables the entire welding process to be automated, reducing human intervention and improving the consistency and repeatability of welding. The application of the intelligent control system not only enhances the convenience of operation but also enables the robotic arm to adapt to more complex welding tasks, improving production efficiency and welding quality.

[0036] When the utility model is in use, the first support frame 3 and the second support frame 7 are firmly installed on both sides of the welding platform to ensure that they are perpendicular to the upper surface of the welding platform to provide stable support. The chute 5 and the movable placement rack 19 are precisely placed. The chute 5 is perpendicular to the upper surface of the welding platform, and both ends of the placement rack 19 are respectively inserted into the insertion slots 9 at the tops of the first support frame 3 and the second support frame 7. The connecting frame 15 is fixed to the front and rear ends of the slider 4 and passes above the chute 5. At the bottom of the connecting frame 15, the positioning mechanism 16 is installed in place, equipped with a distance sensor and a positioning vision sensor, and is electrically connected to the controller 1 to achieve precise positioning and alignment of the welding workpiece. The electric telescopic rod 13 is fixed to the bottom of the slider 4 through the screw 18, and a mounting seat 8 is installed at its bottom. The welding head 17 is embedded in the mounting seat 8, and after installation, it is ensured that the bottom end of the welding head 17 and the positioning mechanism 16 are on the same center line to achieve precise welding alignment. The controller 1 is fixed on the first mounting frame 2 and installed in linkage with the driving motor 11 and the welding head 17. After the driving motor 11 is started, the slider 4 makes a horizontal displacement in the chute 5. After the welding head 17 is started, the welding operation begins. Under the guidance of the positioning mechanism 16, the welding head 17 automatically aligns with the weld seam and performs precise welding. During the entire welding process, the controller 1 continuously monitors the welding state, and according to the feedback information obtained from the positioning mechanism 16, it adjusts the welding parameters and the position of the robotic arm in real time to ensure the quality of the welding operation.

[0037] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. An automatic welding intelligent robotic arm, comprising a chute (5), with a first support frame (3) and a second support frame (7) respectively provided at both ends of the chute (5). The bottoms of the first support frame (3) and the second support frame (7) are respectively fixedly installed on both sides of the welding platform. Plug-in slots (9) are respectively formed at the tops of the first support frame (3) and the second support frame (7). A slider (4) is slidably installed inside the chute (5), characterized in that, Also includes: A placement rack (19) is movably inserted at the bottom of the slide groove (5); Wherein, the two ends of the placement frame (19) are movably inserted into the insertion slots (9) at the top of the first support frame (3) and the second support frame (7) respectively; A connecting frame (15) is fixedly mounted on the front and rear ends of the slide block (4) and passes through the top of the slide groove (5); Wherein, a positioning mechanism (16) is fixedly installed at the bottom of each of the two connecting frames (15), and the positioning mechanism (16) comprises a distance sensor and a positioning visual sensor.

2. The automatic welding intelligent robotic arm according to claim 1, characterized in that, The two ends of the slide groove (5) are respectively provided with holes and bearings (14) are embedded and installed therein, and a lead screw (10) is rotatably installed in the slide groove (5) on the side opposite to the two bearings (14).

3. An automatic welding intelligent robotic arm according to claim 2, characterized in that, One end of the lead screw (10) passes through a bearing (14) and is transmission-mounted with a drive motor (11), which is designed with a forward and reverse rotation structure.

4. An automatic welding intelligent robotic arm according to claim 1, characterized in that A first mounting frame (2) is fixedly mounted on the first supporting frame (3), and a controller (1) is fixedly mounted on the first mounting frame (2).

5. An automatic welding intelligent robotic arm according to claim 1, characterized in that, A second mounting frame (6) is fixedly mounted on the second supporting frame (7), a positioning frame (12) is fixedly mounted on the second mounting frame (6), and the positioning frame (12) is fixedly connected to the driving motor (11).

6. An automatic welding intelligent robotic arm according to claim 1, characterized in that, The bottom of the slider (4) passes through the slide groove (5) and is fixedly mounted with an electric telescopic rod (13) via a screw rod (18); a mounting seat (8) is fixedly mounted at the bottom of the electric telescopic rod (13); a hole is opened in the mounting seat (8) and a welding head (17) is embedded and mounted therein; the bottom end of the welding head (17) and the two positioning mechanisms (16) are located on the same center line.

7. An automatic welding intelligent robotic arm according to claim 1, characterized in that, The positioning mechanism (16) is electrically connected to the controller (1), and the controller (1) is installed in linkage with the driving motor (11), the electric telescopic rod (13) and the welding head (17).

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