Rotary table type automatic welding system

Abstract

The invention relates to a rotating table type automatic welding system which comprises a rotating table, mechanical arm sets arranged on four orthogonal positions of the rotating table and positioning tools arranged on four stations and used for welding a metal frame. The mechanical arm set comprises a feeding mechanical arm, a first welding mechanical arm, a second welding mechanical arm and a discharging mechanical arm which are connected with the rotating table according to the machining sequence, and a part of a metal frame to be welded is arranged on the positioning tool through the feeding mechanical arm and is sequentially welded through the first welding mechanical arm and the second welding mechanical arm. And finally, the welded metal frame is unloaded through an unloading mechanical arm. Compared with the prior art, the rotary table type automatic welding system can achieve efficient, accurate and automatic metal frame welding, the production efficiency and quality are improved, and the rotary table type automatic welding system has wide application prospects.

Description

Technical Field

[0001] The present invention relates to an automatic welding system, and in particular to a rotary table type automatic welding system. Background Art

[0002] In modern manufacturing, automated production lines have become an important means to improve production efficiency and product quality. However, for some metal frames with special shapes and sizes, traditional automated welding systems have certain limitations and cannot meet the requirements of high-precision welding.

[0003] The related technologies have the following defects:

[0004] Inaccurate positioning: When traditional automated welding systems weld large metal frames, due to low positioning accuracy, it is easy to cause the welding position to shift or be inaccurate, affecting the welding quality. Low production efficiency: Traditional automated welding systems usually can only perform single welding, and manual intervention is required to complete multiple welding processes, resulting in low production efficiency. Poor adaptability: Traditional automated welding systems have poor adaptability to metal frames of different shapes and sizes, and frequent adjustments and replacement of tooling are required, increasing the downtime and labor costs of the production line. Lack of flexibility: Traditional automated welding systems usually can only be applied to specific welding processes and product types, lacking flexibility and scalability, and cannot meet the changes in different production requirements. Complex operation: Traditional automated welding systems are complex to operate and require professional technicians to set up and debug, with high requirements for operators.

[0005] Therefore, in order to improve the production efficiency and product quality of the manufacturing industry, it is necessary to develop a new type of automatic welding system. Summary of the Invention

[0006] The purpose of the present invention is to provide a rotary table type automatic welding system to overcome the defects of the above-mentioned existing technologies. The rotary table type automatic welding system can achieve efficient, precise and automated welding of metal frames, improve production efficiency and quality, and has broad application prospects.

[0007] The purpose of the present invention can be realized by the following technical solutions:

[0008] The present invention provides a rotary table type automatic welding system, which includes a rotary table, a robotic arm group arranged at four orthogonal positions of the rotary table, and positioning tooling for welding metal frames arranged at four workstations. The robotic arm group includes a loading robotic arm, a first welding robotic arm, a second welding robotic arm, and an unloading robotic arm that are connected to the rotary table in the processing order. The components of the metal frame to be welded are installed on the positioning tooling by the loading robotic arm, and are welded sequentially by the first welding robotic arm and the second welding robotic arm. Finally, the welded metal frame is unloaded by the unloading robotic arm.

[0009] Further, the rotary table includes a rotary table base, a servo motor arranged on the base, and a rotary panel connected to the output shaft of the servo motor. The four robotic arms in the robotic arm group are connected to the rotary panel according to four orthogonal positions.

[0010] Further, the rotary table type automatic welding system further includes at least one conveyor belt, which is used to convey metal frame components and / or finished metal frames.

[0011] Further, the positioning tooling for welding metal frames includes a square frame, an X-direction displacement component, a vertical rod, a plurality of first right-angle plates, a Y-direction displacement component, and a plurality of second right-angle plates. Specifically:

[0012] Square frame, on which tracks are provided on both the X-direction border and the Y-direction border of the square frame;

[0013] X-direction displacement component, arranged on the X-direction border of the square frame;

[0014] Vertical rod, connected to the X-direction displacement component;

[0015] A plurality of first right-angle plates, adjustably arranged on the vertical rod;

[0016] Y-direction displacement component, arranged on the Y-direction border of the square frame;

[0017] A plurality of second right-angle plates, connected to the Y-direction displacement component. The two right-angle surfaces of the first right-angle plate are respectively parallel to the two right-angle surfaces of the second right-angle plate, so as to clamp and limit the inner and outer sides of the right-angle sides of the metal frame to be welded.

[0018] Further, the X-direction displacement component includes a first U-shaped slider, on which a limit bolt is penetrated. The first U-shaped slider is movably clamped on the X-direction border of the square frame, and the limit of the first U-shaped slider can be realized by tightening the limit bolt.

[0019] Further, an X-direction chute is provided on the X-direction border of the square frame;

[0020] The first U-shaped slider is provided with a convex strip that matches the X-direction chute, so that the first U-shaped slider can only perform linear displacement along the X-direction chute.

[0021] Further, the vertical rod is connected between two first U-shaped sliders;

[0022] The first right-angle plate is movably connected to the vertical rod through a square slider;

[0023] The vertical rod passes through the square slider, and a limit bolt is provided on the square slider, and the limit of the square slider can be realized by tightening the limit bolt.

[0024] Further, the first right-angle plate is connected to the square slider through a connecting rod.

[0025] Further, the Y-direction displacement assembly includes a second U-shaped slider. A limit bolt penetrates through the second U-shaped slider. The second U-shaped slider is movably clamped on the Y-direction side frame of the square frame, and the limit of the second U-shaped slider can be realized by tightening the limit bolt;

[0026] The second right-angle plate is connected to the second U-shaped slider through a connecting rod.

[0027] Further, a porous substrate is provided in the middle of the square frame. A plurality of vertical insertion holes are evenly provided on the porous substrate. A positioning pin can be inserted into the vertical insertion holes for positioning the middle part of the metal frame to be welded.

[0028] Compared with the prior art, the present invention has the following technical advantages:

[0029] Improve production efficiency: The system combines a rotating table and a robotic arm group, can perform multiple welding processes simultaneously, realizes automated production, and greatly improves the welding efficiency.

[0030] Precise positioning: The positioning tooling in the system combines a square frame, a right-angle plate and a displacement assembly, can precisely clamp and position the metal frame to be welded, and ensures the accuracy and stability of the welding position.

[0031] Strong flexibility: Through the flexible operation of the robotic arm group and the rotation of the rotating table, the system can adapt to metal frames of different sizes and shapes, and has strong adaptability and flexibility.

[0032] Automated control: The system uses automated control devices such as servo motors and conveyor belts, can realize processes such as automatic feeding, welding, and unloading, reduces manual intervention, and improves production efficiency and quality. Description of the Drawings

[0033] Figure 1The rotary table type automatic welding system of the rotary table type automatic welding system;

[0034] Figure 2 It is a schematic structural diagram of a positioning tooling for metal frame welding;

[0035] Figure 3 It is a schematic structural diagram of the first U-shaped slider.

[0036] In the figure: 1. Square frame, 2. Vertical rod, 3. First right-angle plate, 4. Second right-angle plate, 5. First U-shaped slider, 6. X-direction chute, 7. Square slider, 8. Second U-shaped slider, 9. Porous substrate, 10. Rotary table, 11. Loading manipulator, 12. First welding manipulator, 13. Second welding manipulator, 14. Unloading manipulator, 15. Conveyor belt. Specific embodiments

[0037] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Features such as component models, material names, connection structures, control methods, algorithms, etc. that are not clearly described in this technical solution are regarded as common technical features disclosed in the prior art.

[0038] Embodiment 1

[0039] The rotary table type automatic welding system in the present invention is shown in Figures 1 to 3 , and includes a rotary table 10, a set of manipulators disposed on four orthogonal positions of the rotary table 10, and a positioning tooling for metal frame welding disposed on four workstations. The set of manipulators includes a loading manipulator 11, a first welding manipulator 12, a second welding manipulator 13, and an unloading manipulator 14 that are connected to the rotary table 10 in the processing order. The components of the metal frame to be welded are installed on the positioning tooling by the loading manipulator 11, and are sequentially welded by the first welding manipulator 12 and the second welding manipulator 13. Finally, the welded metal frame is unloaded by the unloading manipulator 14. The first welding manipulator 12 and the second welding manipulator 13 perform different welding actions respectively.

[0040] The rotary table 10 includes a rotary table base, a servo motor disposed on the base, and a rotary panel connected to the output shaft of the servo motor. The four manipulators in the set of manipulators are connected to the rotary panel according to four orthogonal positions. The rotary table type automatic welding system further includes at least one conveyor belt 15, and the conveyor belt 15 is used to transport metal frame parts and / or metal frame finished products.

[0041] The positioning tooling for metal frame welding includes a square frame 1, an X-direction displacement component, a vertical rod 2, a plurality of first right-angle plates 3, a Y-direction displacement component, and a plurality of second right-angle plates 4. Specifically, refer to Figure 1 and Figure 2 .

[0042] Tracks are provided on both the X-direction frame border and the Y-direction frame border of the square frame 1, and an X-direction sliding groove 6 is provided on the X-direction frame border of the square frame 1.

[0043] The X-direction displacement assembly is arranged on the X-direction frame border of the square frame 1. The X-direction displacement assembly includes a first U-shaped slider 5, and a limiting bolt is penetratively arranged on the first U-shaped slider 5. The first U-shaped slider 5 is movably clamped on the X-direction frame border of the square frame 1, and the limiting of the first U-shaped slider 5 can be realized by tightening the limiting bolt. A rib matching the X-direction sliding groove 6 is provided on the first U-shaped slider 5, so that the first U-shaped slider 5 can only perform linear displacement along the X-direction sliding groove 6.

[0044] The vertical rod 2 is connected to the X-direction displacement assembly; a plurality of first right-angle plates 3 are adjustably arranged on the vertical rod 2.

[0045] The Y-direction displacement assembly is arranged on the Y-direction frame border of the square frame 1; the Y-direction displacement assembly includes a second U-shaped slider 8, and a limiting bolt is penetratively arranged on the second U-shaped slider 8. The second U-shaped slider 8 is movably clamped on the Y-direction frame border of the square frame 1, and the limiting of the second U-shaped slider 8 can be realized by tightening the limiting bolt. The second right-angle plate 4 is connected to the second U-shaped slider 8 through a connecting rod.

[0046] A plurality of second right-angle plates 4 are connected to the Y-direction displacement assembly, and two right-angle surfaces of the first right-angle plate 3 are respectively parallel to two right-angle surfaces of the second right-angle plate 4, so as to clamp and limit the right-angle sides of the metal frame to be welded inside and outside.

[0047] The vertical rod 2 is connected between two first U-shaped sliders 5. The first right-angle plate 3 is movably connected to the vertical rod 2 through a square slider 7. The vertical rod 2 penetrates through the square slider 7, and a limiting bolt is arranged on the square slider 7. The limiting of the square slider 7 can be realized by tightening the limiting bolt. The first right-angle plate 3 is connected to the square slider 7 through a connecting rod.

[0048] The heights of the square slider 7 and the vertical rod 2 can be designed according to the actual situation, so that they do not affect the placement of each part of the metal frame to be welded.

[0049] A porous substrate 9 is arranged in the middle of the square frame 1. A plurality of vertical insertion holes are evenly arranged on the porous substrate 9, and positioning pins can be inserted into the vertical insertion holes, so as to be used for the positioning of the middle parts of the metal frame to be welded.

[0050] The working process of the rotary table type automatic welding system is as follows:

[0051] 1. Preparation: Assemble the components of the metal frame to be welded onto the positioning fixture via the loading robotic arm, and place the positioning fixture at four orthogonal positions on the rotating table.

[0052] 2. Loading stage: The loading robotic arm removes the components of the metal frame to be welded from the positioning fixture and assembles them onto the first welding robotic arm.

[0053] 3. First welding stage: The first welding robotic arm performs the first welding on the components of the metal frame.

[0054] 4. Second welding stage: The second welding robotic arm performs the second welding on the components of the metal frame.

[0055] 5. Unloading stage: The unloading robotic arm removes the welded metal frame from the second welding robotic arm and unloads it.

[0056] 6. Rotation of the rotating table: The rotating table rotates to the next working station according to the processing sequence to prepare for the next welding.

[0057] Repeat steps 2 - 6 until all components of the metal frame are welded.

[0058] The method for using the welding positioning fixture for the metal frame of the present invention by a robotic arm or manually is as follows:

[0059] Preparation: Place the metal frame to be welded on the workbench and ensure that the workbench is flat and stable.

[0060] Adjustment for positioning: According to the size and shape of the metal frame, adjust the positions of the X - direction displacement component and the Y - direction displacement component to make them fit the frame of the metal frame.

[0061] Positioning and clamping: Insert the first right - angle plate and the second right - angle plate into the vertical rod and the connecting rod on the Y - direction displacement component respectively, and adjust their positions as needed to ensure that the right - angle sides of the metal frame to be welded are clamped.

[0062] Limit adjustment: By tightening the limit bolts, restrict the displacement range of the first U - shaped slider and the second U - shaped slider to ensure that they perform linear displacement within the sliding groove.

[0063] Positioning and fixing: According to the position requirements of the middle parts of the metal frame, select appropriate vertical insertion holes and insert positioning pins to fix the positions of the parts.

[0064] Perform welding: After completing the positioning and fixing, perform the welding work on the metal frame. Carry out corresponding welding operations according to the welding process requirements.

[0065] Using the metal frame welding positioning tooling of the present invention, precise positioning and clamping can be achieved, ensuring the accuracy and efficiency of welding. At the same time, the adjustment and operation of the tooling are simple and convenient, meeting the welding requirements of metal frames of different sizes and shapes.

[0066] The above description of the embodiments is to enable those of ordinary skill in the art to understand and use the invention. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative efforts. Therefore, the present invention is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the present invention according to the disclosure of the present invention should be within the protection scope of the present invention.

Claims

1. A rotary table type automatic welding system, characterized in that, It includes a rotary table (10), a robotic arm group arranged at four orthogonal positions of the rotary table (10), and positioning jigs for welding metal frames arranged at four workstations. The robotic arm group includes a loading robotic arm (11), a first welding robotic arm (12), a second welding robotic arm (13), and an unloading robotic arm (14) connected to the rotary table (10) in the processing sequence. Components of the metal frame to be welded are loaded onto the positioning jig by the loading robotic arm (11), and are welded successively by the first welding robotic arm (12) and the second welding robotic arm (13). Finally, the welded metal frame is unloaded by the unloading robotic arm (14).

2. The rotary table type automatic welding system according to claim 1, wherein The rotary table (10) includes a rotary table base, a servo motor arranged on the base, and a rotary panel connected to the output shaft of the servo motor. The four robotic arms in the robotic arm group are connected to the rotary panel according to four orthogonal positions.

3. The rotary table type automatic welding system according to claim 1, characterized in that, The rotary table type automatic welding system further includes at least one conveyor belt (15), and the conveyor belt (15) is used for transporting metal frame parts and / or metal frame finished products.

4. A rotary table type automatic welding system according to claim 1, characterized in that, The positioning jig for welding metal frames includes: A square frame (1), and tracks are arranged on both the X-direction border and the Y-direction border of the square frame (1). An X-direction displacement component arranged on the X-direction border of the square frame (1). A vertical rod (2) connected to the X-direction displacement component. Multiple first right-angle plates (3) adjustably arranged on the vertical rod (2). A Y-direction displacement component arranged on the Y-direction border of the square frame (1). Multiple second right-angle plates (4) connected to the Y-direction displacement component. Two right-angle faces of the first right-angle plate (3) are respectively parallel to two right-angle faces of the second right-angle plate (4), so as to clamp and limit the inner and outer right-angle sides of the metal frame to be welded.

5. The automatic rotary table welding system according to claim 4, characterized in that, The X-direction displacement component includes a first U-shaped slider (5), and a limit bolt penetrates through the first U-shaped slider (5). The first U-shaped slider (5) is movably clamped on the X-direction border of the square frame (1), and the limit of the first U-shaped slider (5) can be realized by tightening the limit bolt.

6. The rotary table type automatic welding system according to claim 5, characterized in that An X-direction chute (6) is arranged on the X-direction border of the square frame (1). A convex strip matching the X-direction chute (6) is arranged on the first U-shaped slider (5), so that the first U-shaped slider (5) can only perform linear displacement along the X-direction chute (6).

7. A rotary table type automatic welding system according to claim 4, characterized in that, The vertical rod (2) is connected between two first U-shaped sliders (5). The first right-angle plate (3) is movably connected to the vertical rod (2) through a square slider (7). The vertical rod (2) penetrates through the square slider (7), and a limit bolt is arranged on the square slider (7), and the limit of the square slider (7) can be realized by tightening the limit bolt.

8. The rotary table type automatic welding system according to claim 7, characterized in that, The first right-angle plate (3) is connected to the square slider (7) through a connecting rod.

9. The rotary table type automatic welding system according to claim 4, wherein The Y-direction displacement component includes a second U-shaped slider (8). A limit bolt is provided through the second U-shaped slider (8). The second U-shaped slider (8) is movably clamped on the Y-direction border of the square frame (1), and the limit of the second U-shaped slider (8) can be achieved by tightening the limit bolt. The second right-angle plate (4) is connected to the second U-shaped slider (8) through a connecting rod.

10. A rotary table type automatic welding system according to claim 4, wherein A porous substrate (9) is provided in the middle of the square frame (1). A plurality of vertical insertion holes are evenly provided on the porous substrate (9). Positioning pins can be inserted into the vertical insertion holes for positioning the middle parts of the metal frame to be welded.

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