Frame welding fixing device

Abstract

The utility model belongs to the related technical field of automatic welding equipment, and particularly relates to a frame welding fixing device. A workbench is arranged, the workbench is provided with a first datum line and a second datum line, the first datum line and the second datum line are perpendicular to each other, and a first frame and a second frame are arranged on the workbench along the first datum line and the second datum line respectively; and at least one pushing mechanism is arranged to push the frame to the datum line, and the pressing mechanism is arranged to conduct automatic pressing, so that the pushing mechanism and the pressing mechanism are combined to fix the frame, the stability of the frame is improved, and therefore metal frame welding is conducted through the welding mechanism. By means of the frame welding and fixing device, automatic welding and fixing of the metal frame are achieved, so that the welding efficiency and stability are improved, the production cost is reduced, and the quality of welded products is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of automated welding equipment, and in particular relates to a frame welding fixing device. Background Technology

[0002] Large metal frames are commonly used in many fields, such as the external support frames of buildings and some large equipment. However, large metal frames are often not formed in one piece; they usually require welding multiple frame sections together to form a complete metal frame.

[0003] The production and welding of large metal frames often requires significant manpower and equipment for assembly and welding, resulting in high production and labor costs. Furthermore, the non-automated welding process for large metal frames is not only inefficient, but the lack of consideration for interaction forces between the frame fixing mechanisms leads to instability during welding. This ultimately results in defective large metal frames that do not meet requirements, further increasing production costs and compromising product quality. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a frame welding and fixing device. By setting multiple pushing and pressing mechanisms on the device, the fixing stability of the frame is improved, and a welding mechanism is set to weld and fix the fixed and stable metal frame.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] In a first aspect, this utility model proposes a frame welding and fixing device for welding multiple metal frames—a first frame, a second frame, and at least one third frame—into a closed metal frame, comprising:

[0007] The base is provided with a worktable, and the worktable is provided with a first reference line and a second reference line, wherein the first reference line and the second reference line are set perpendicular to each other, and the first border and the second border are set along the first reference line and the second reference line, respectively, on the worktable.

[0008] At least one pushing mechanism, fixed on the base and disposed adjacent to the worktable, is used to push the first frame to the first reference line, push the second frame to the second reference line, and push the third frame to the end of the first frame or the end of the second frame.

[0009] The pressing mechanism includes a first pressing component, a second pressing component and a third pressing component disposed on the base. The first pressing component is disposed adjacent to the first frame to press and fix the first frame. The second pressing component is disposed adjacent to the second frame to press and fix the second frame. The third pressing component is disposed adjacent to the third frame to press and fix the third frame.

[0010] And a welding mechanism, located above the base, is used to weld the first, second and third edges of the workbench into a closed metal frame.

[0011] The system includes a worktable with a first and second reference line, perpendicular to each other. A first and second frame are positioned along the first and second reference lines, respectively, on the worktable. At least one pushing mechanism pushes the frame onto the reference line, and a pressing mechanism automatically presses it down. This combined action of pushing and pressing mechanisms secures the frame, improving its stability, allowing for metal frame welding. This frame welding and fixing device automates the welding and fixing of the metal frame, improving welding efficiency and stability, reducing production costs, and enhancing the quality of the welded products.

[0012] In some embodiments, a third reference line is also included, which is connected to one end of the first reference line, and / or the third reference line is connected to one end of the second reference line, and the pushing mechanism pushes the third frame onto the third reference line for welding.

[0013] The shape of the metal frame can be flexibly adjusted as needed using the third baseline.

[0014] In some embodiments, a limiting mechanism is also included, which is disposed on one side of the first reference line, the second reference line, and the third reference line.

[0015] The limiting mechanism can further stabilize the frame and improve the stability of product quality.

[0016] In some embodiments, the limiting mechanism includes a first fixed seat and a limiting plate. The first fixed seat is fixed on the base, and the limiting plate is disposed on the base. The limiting surface of the limiting plate is parallel to the first reference line, or the limiting surface of the limiting plate is parallel to the second reference line, or the limiting surface of the limiting plate is parallel to the third reference line.

[0017] A fixed limiting plate is used to limit one side of the frame to prevent the frame from deviating from the baseline.

[0018] In some embodiments, limit blocks are provided on both sides of the first frame, the second frame, and the third frame, and limit grooves are provided on the limit plates, with the limit blocks positioned within the limit grooves for limiting.

[0019] The limiting blocks on the frame and the limiting grooves on the limiting plate are used to align and fix the limiting plate and the frame, thereby limiting and stabilizing the frame and improving the stability of the welding.

[0020] In some embodiments, at least one pushing mechanism and at least one limiting mechanism are respectively provided on both sides of the first baseline; at least one pushing mechanism and at least one limiting mechanism are respectively provided on both sides of the second baseline; and at least one pushing mechanism and at least one limiting mechanism are respectively provided on both sides of the third baseline.

[0021] In some embodiments, the pushing mechanism includes a second fixed seat and a first cylinder. The second fixed seat is fixed on the base, and the first cylinder is disposed on the second fixed seat. The driving end of the first cylinder is provided with a pushing plate. The pushing surface of the pushing plate is parallel to the first reference line, or the pushing surface of the pushing plate is parallel to the second reference line, or the pushing surface of the pushing plate is parallel to the third reference line.

[0022] The push plate is driven by a cylinder to push the frame to the baseline.

[0023] In some embodiments, the first pressing assembly, the second pressing assembly, and the third pressing assembly each include a third fixing seat and a second cylinder. The third fixing seat is fixed on the base, the second cylinder is disposed on the base, and the driving end of the second cylinder is provided with a pressing plate so that the pressing plate presses the first frame, the second frame, and the third frame.

[0024] The cylinder drives the pressure on the frame to prevent frame vibration from causing welding instability.

[0025] In some embodiments, a slide rail is provided around the base, and a welding mechanism is mounted on the slide rail to weld multiple metal frames, a first frame, a second frame, and at least a third frame, into a closed metal frame.

[0026] By setting up slide rails and allowing the welding mechanism to slide on the slide rails, a single welding mechanism can weld multiple positions on the frame.

[0027] In some implementations, a control valve is provided on the base, which is used to control the start and stop of the pushing mechanism, pressing mechanism, and welding mechanism.

[0028] By using the control valves, the movement of each mechanism on the base can be manually controlled and started / stopped, thus enabling flexible welding.

[0029] The beneficial effects of this frame welding and fixing device are:

[0030] The system includes a worktable with a first and second reference line, perpendicular to each other. A first and second frame are positioned along the first and second reference lines, respectively, on the worktable. At least one pushing mechanism pushes the frame onto the reference line, and a pressing mechanism automatically presses it down. This combined action of pushing and pressing mechanisms secures the frame, improving its stability, allowing for metal frame welding. This frame welding and fixing device automates the welding and fixing of the metal frame, improving welding efficiency and stability, reducing production costs, and enhancing the quality of the welded products. Attached Figure Description

[0031] Figure 1 This is a top view of a frame welding and fixing device according to the present invention. Figure 1 ;

[0032] Figure 2 This is a top view of a frame welding and fixing device according to the present invention. Figure 2 ;

[0033] Figure 3 This is a top view of the base of a frame welding and fixing device according to this utility model;

[0034] Figure 4 This is a perspective view of the pushing mechanism of a frame welding and fixing device according to the present invention;

[0035] Figure 5 This is a perspective view of the pressing mechanism of a frame welding and fixing device according to the present invention;

[0036] Figure 6 This is a perspective view of the limiting mechanism of a frame welding and fixing device according to the present invention.

[0037] Figure label:

[0038] 1. Base; 11. Worktable; X1. First baseline; X2. Second baseline; X3. Third baseline;

[0039] 2. Pushing mechanism; 21. Second fixed seat; 22. First cylinder; 23. Pushing plate;

[0040] 3. Pressing mechanism; 31. First pressing assembly; 32. Second pressing assembly; 33. Third pressing assembly; 34. Third fixing base; 35. Second cylinder; 36. Pressing plate;

[0041] 4. Welding mechanism; 41. Slide rail;

[0042] 5. Limiting mechanism; 51. First fixed seat; 52. Limiting plate; 521. Limiting groove;

[0043] 6. Metal frame. Detailed implementation method:

[0044] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of this utility model can be combined with each other. The detailed description in the specific embodiments should be understood as an explanation of the spirit of this utility model and should not be regarded as an improper limitation of this utility model.

[0045] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the specific technical solutions of this utility model will be further described in detail below with reference to the accompanying drawings of the embodiments of this utility model. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0046] In the embodiments of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0047] Furthermore, in this embodiment of the invention, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0048] In the embodiments of this utility model, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.

[0049] In embodiments of this invention, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0050] In this embodiment of the invention, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design described as "exemplary" or "for example" in this embodiment of the invention should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant information in a specific manner.

[0051] Example 1:

[0052] like Figures 1-3 As shown, this embodiment proposes a frame welding and fixing device for welding multiple metal frames, including a first frame, a second frame, and at least one third frame, into a closed metal frame 6. The device includes: a base 1 with a worktable 11, the worktable 11 having a first reference line X1 and a second reference line X2, wherein the first reference line X1 and the second reference line X2 are perpendicular to each other; the first frame and the second frame are respectively positioned along the first reference line X1 and the second reference line X2 on the worktable 11; and at least one pushing mechanism 2, fixed to the base 1 and adjacent to the worktable 11, for pushing the first frame onto the first reference line X1 and pushing the second frame onto the first reference line X2. The frame is pushed onto the second baseline X2, and the third frame is pushed to the end of the first frame or the end of the second frame; the pressing mechanism 3 includes a first pressing component 31, a second pressing component 32 and a third pressing component 33 disposed on the base 1. The first pressing component 31 is disposed adjacent to the first frame to press and fix the first frame, the second pressing component 32 is disposed adjacent to the second frame to press and fix the second frame, and the third pressing component 33 is disposed adjacent to the third frame to press and fix the third frame; and the welding mechanism 4 is disposed above the base 1. The welding mechanism 4 is used to weld the first frame, the second frame and the third frame located on the worktable 11 into a closed metal frame 6.

[0053] Specifically, this device is mainly used to weld a first frame, a second frame, and at least one third frame into a closed metal frame 6, such as a rectangular frame, a right-angled triangular frame, or an irregular frame. More specifically, in some practical embodiments, the metal frame 6 is usually a rectangular frame, and the third frame can be multiple, each being an opposite side of the first and second frames, thus forming a closed rectangular metal frame 6. The frame welding and fixing device is equipped with a base 1, and a worktable 11 is mounted on the base 1. The worktable 11 is equipped with a first reference line X1 and a second reference line X2, which are perpendicularly arranged. The first and second frames are respectively positioned along the first reference line X1 and the second reference line X2 on the worktable 11, facilitating positioning during material loading.

[0054] At least one pushing mechanism 2 is provided, fixed to the base 1 and adjacent to the worktable 11, to push the first frame to the first reference line X1, the second frame to the second reference line X2, and the third frame to the first frame or the end of the second frame. The pushing mechanism 2 is used for pushing and fixing. Through the mechanical structure, the metal frame 6 is pushed and formed before welding. After welding and stabilization by the welding mechanism 4, the pushing mechanism 2 pushes back to remove the welded metal frame 6. The pushing mechanism 2 can be set on one side of the frame, and the pushing direction is perpendicular to the side of the frame, so as to push the frame to move laterally on the base 1. Further, the pushing mechanism 2 can be set on both sides of the frame, with opposite pushing directions on both sides, so that when the pushing mechanism 2 pushes, the frame is clamped between two opposite directions of the feeding mechanism, thereby stabilizing the frame. The pushing mechanism can also be set on only one side, and a limiting member is set on the other side, so that the frame is clamped between the limiting member and the pushing mechanism 2. Normally, at least one pushing mechanism 2 is provided on one side of a frame. However, in order to ensure stable pushing and prevent left and right swaying, two pushing mechanisms 2 can be provided on one side to push the two ends of the frame respectively, so as to achieve stable horizontal movement.

[0055] Meanwhile, a pressing mechanism 3 is also provided, which includes a first pressing component 31, a second pressing component 32 and a third pressing component 33. The first pressing component 31 presses the first frame to prevent the first frame from shaking up and down during welding; the second pressing component 32 presses the second frame to prevent the second frame from shaking up and down during welding; and the third pressing component 33 presses the third frame to prevent the second frame from shaking up and down during welding.

[0056] A welding mechanism 4 is also provided above the base 1 to weld and fix the metal frame 6. The welding mechanism 4 can be a multi-axis robot, which performs welding through program settings. The multi-axis robot can be fixed above the base 1, or more specifically, a bracket can be set on the base 1, and the bracket can be equipped with movable mechanisms, such as moving tracks, moving guide rails, etc. The multi-axis robot is fixed on the movable mechanism and moves to perform welding, and the free end of the multi-axis robot performs welding.

[0057] A worktable 11 is provided, with a first reference line X1 and a second reference line X2, which are perpendicular to each other. A first frame and a second frame are respectively positioned along the first reference line X1 and the second reference line X2 on the worktable 11. At least one pushing mechanism 2 is provided to push the frame onto the reference lines, and a pressing mechanism 3 automatically presses it down, thus fixing the frame and improving its stability. A welding mechanism 4 then welds the metal frame 6. This frame welding and fixing device achieves automated welding and fixing of the metal frame 6, thereby improving welding efficiency and stability, reducing production costs, and improving the quality of the welded product.

[0058] Example 2:

[0059] Please refer to this again. Figures 1-3 and combined with, for example Figures 4-6 As shown, this embodiment further optimizes and explains the structure proposed in Embodiment 1:

[0060] In some embodiments, a third reference line X3 is also included. The third reference line X3 is connected to one end of the first reference line X1, and / or the third reference line X3 is connected to one end of the second reference line X2. The pushing mechanism 2 pushes the third frame onto the third reference line X3 for welding. Specifically, to facilitate material loading, a third reference line X3 can also be set for the third frame. There can be multiple third reference lines X3, set according to the preset shape of the metal frame 6. The third reference lines X3 can be connected to the first reference line X1 or the second reference line X2, and can be perpendicular to each other. If the metal frame 6 is rectangular, there are two third reference lines X3, which are parallel to the first reference line X1 and the second reference line X2 respectively, so that the first reference line X1, the second reference line X2, and the two third reference lines X3 form a rectangular metal frame 6. The shape of the metal frame 6 can be flexibly adjusted as needed through the third reference line X3.

[0061] In some embodiments, a limiting mechanism 5 is further included, which is disposed on one side of the first reference line X1, the second reference line X2, and the third reference line X3. Specifically, the limiting mechanism 5 can be disposed on both sides of the first reference line X1, the second reference line X2, and the third reference line X3 to limit the movement during pushing. In actual implementation, the limiting mechanism 5 is only disposed on one side of the reference lines to achieve frame stability by clamping the frame with the pushing mechanism 2 during pushing. When the pushing mechanism 2 retracts, the welded metal frame 6 is fixed and removed. The limiting mechanism 5 further stabilizes the frame, improving the stability of product quality.

[0062] In some embodiments, the limiting mechanism 5 includes a first fixed base 51 and a limiting plate 52. The fixed base is fixed to the base 1, and the limiting plate 52 is disposed on the base 1. The limiting surface of the limiting plate 52 is parallel to the first reference line X1, or parallel to the second reference line X2, or parallel to the third reference line X3. Specifically, the limiting mechanism 5 includes a first fixed base 51 and a limiting plate 52. The first fixed base 51 can be fixed to the base 1 by screws, and the base 1 can be fixed by aligning screw holes. The first fixed base 51 can be disassembled and fixed by screw removal. The limiting plate 52 is disposed on the base 1, and the limiting surface of the limiting plate 52 is parallel to the reference line and disposed on one side of the reference line. When the pushing mechanism 2 pushes, the frame is pushed to the upper limit of the limiting surface and moves laterally, thereby realizing the interaction between the limiting plate 52 and the pushing mechanism 2 to limit the frame between the limiting plate 52 and the pushing mechanism 2. The limiting plate 52 can be a cuboid, with the largest area being the limiting surface. By fixing the limiting plate 52, one side of the frame is limited to prevent the frame from deviating from the baseline.

[0063] In some embodiments, limit blocks (not shown in the figure) are provided on both sides of the first frame, the second frame, and the third frame, and limit grooves 521 are provided on the limit plate 52, with the limit blocks positioned within the limit grooves 521 for limiting. Specifically, limit blocks are provided on the sides of the metal frame, and corresponding limit grooves 521 are provided on the limit plate 52, so that the limit blocks and limit grooves 521 can be aligned and limited. The limit blocks can be rectangular protrusions, and the limit grooves 521 can be concave. This ensures that the limit blocks and limit grooves 521 are aligned when the pushing mechanism 2 pushes, thereby preventing frame jitter. Through the limit blocks of the frame and the limit grooves 521 on the limit plate 52, the limit plate 52 and the frame are aligned and fixed, thereby limiting and stabilizing the frame and improving the stability of welding.

[0064] In some embodiments, at least one pushing mechanism 2 and at least one limiting mechanism 5 are respectively provided on both sides of the first reference line X1; at least one pushing mechanism 2 and at least one limiting mechanism 5 are respectively provided on both sides of the second reference line X2; and at least one pushing mechanism 2 and at least one limiting mechanism 5 are respectively provided on both sides of the third reference line X3. Specifically, one pushing mechanism 2 and one limiting mechanism 5 are respectively provided on both sides of all reference lines. The pushing mechanism 2 and the limiting mechanism 5 on both sides of the reference line are usually aligned so that they are relatively aligned and fixed when clamped. In some more preferred embodiments, two pushing mechanisms 2 and two aligned limiting mechanisms 5 are respectively provided on both sides of the reference line. The two pushing mechanisms 2 are respectively provided at both ends of the reference line, and the limiting mechanisms 5 are aligned. Furthermore, a pushing mechanism 2 can also be provided at the center line of the reference line, so that the frame maintains overall lateral movement when the pushing mechanism 2 pushes the frame laterally. By separating the limiting mechanism 5 and the pushing mechanism 2 on both sides of the reference line, the frame can be pushed and fixed, and the welded metal frame 6 can be removed.

[0065] In some embodiments, the pushing mechanism 2 includes a second fixed base 21 and a first cylinder 22. The second fixed base 21 is fixed to the base 1, and the first cylinder 22 is disposed on the second fixed base 21. A pushing plate 23 is disposed at the driving end of the first cylinder 22. The pushing surface of the pushing plate 23 is parallel to the first reference line X1, or parallel to the second reference line X2, or parallel to the third reference line X3. Specifically, the pushing mechanism 2 includes a second fixed base 21 and a first cylinder 22. The second fixed base 21 can be fixed to the base 1 by screws. The base 1 is also provided with screw holes for alignment and fixing, so as to realize the disassembly and fixing of the second fixed base 21, thereby making the frame more flexible. The first cylinder 22 is mounted on the second fixed base 21. A pusher plate 23 is mounted on the driving end of the first cylinder 22. The pushing surface of the pusher plate 23 is parallel to the baseline. The pusher plate 23 can also be configured similarly to the limiting plate 52, but the length of the pusher plate 23 should be as long as possible, perhaps two to three times that of the limiting plate 52, or even as long as possible. A longer pusher plate 23 provides higher pushing stability. In some extreme embodiments, the length of the pusher plate 23 is the same as the length of the frame, resulting in better frame stability during pushing. The cylinder drives the pusher plate 23 to push the frame to the baseline. In other embodiments, the pusher plate 23 also has a protruding structure to increase the pushing area, thereby improving pushing stability.

[0066] In some embodiments, the first pressing assembly 31, the second pressing assembly 32, and the third pressing assembly 33 each include a third fixing seat 34 and a second cylinder 35. The third fixing seat 34 is fixed on the base 1, and the second cylinder 35 is disposed on the base 1. The driving end of the second cylinder 35 is provided with a pressing plate 36 so that the pressing plate 36 presses the first frame, the second frame, and the third frame. Specifically, the first pressing assembly 31, the second pressing assembly 32, and the third pressing assembly 33 in the pressing mechanism 3 are all fixed on the base 1 by the third fixing seat 34, and a second cylinder 35 is provided. The driving direction of the second cylinder 35 is different from the driving direction of the first cylinder 22, and is driven perpendicular to the base plate. The second cylinder 35 can be vertically mounted on the base plate with its drive end facing upwards. A pressing plate 36 is mounted on the drive end and can be a pressing block. When the drive end of the second cylinder 35 retracts, the pressing plate 36 presses down and clamps the upper surface of the frame to fix the frame and prevent it from moving. When the frame is pushed outwards, the pressing block releases the upper surface of the frame, allowing the metal frame 6 to be removed. Furthermore, a corner cylinder can be provided. The output end of the corner cylinder can rotate and rise so that when the pressing plate 36 presses down, it rotates to the upper surface of the frame. When the drive end of the second cylinder 35 moves away, the pressing plate 36 moves away from the upper surface of the frame and is tilted to one side, facilitating the removal of the metal frame. The cylinder drive achieves pressure on the frame, preventing frame vibration and welding instability.

[0067] Example 3:

[0068] Please refer to the following: Figure 1 As shown, this embodiment further explains and optimizes the welding mechanism 4 mentioned in Embodiment 1:

[0069] In some preferred embodiments, a slide rail 41 is provided around the base 1, and a welding mechanism 4 slides on the slide rail 41 to weld multiple metal frames—a first frame, a second frame, and at least one third frame—into a closed metal frame 6. By providing the slide rail 41 around the base 1 and sliding the welding mechanism 4 on it, the welding mechanism 4 can be the multi-axis manipulator mentioned in Embodiment 1, with a slide base at its bottom that is driven and connected to the slide rail 41. The slide base can be moved by a linear motor. This allows the multi-axis manipulator to move around the base 1 under the drive of the slide rail 41, enabling the welding mechanism 4 to weld the metal frame 6. By providing the slide rail 41 and sliding the welding mechanism 4 on it, a single welding mechanism 4 can weld multiple positions of the frame.

[0070] In some embodiments, a control valve is provided on the base 1 to control the start and stop of the pushing mechanism 2, the pressing mechanism 3, and the welding mechanism 4. Specifically, the control valve on the base 1 controls the start and stop of the pushing mechanism 2, the pressing mechanism 3, and the welding mechanism 4. This valve allows for start / stop in emergency situations or partial control, making welding more flexible and adaptable to welding more metal frames 6. The control valve allows for manual control and start / stop of the movement of each mechanism on the base 1, thereby achieving flexible welding.

[0071] The serial numbers of the utility model embodiments are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are only preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent device or equivalent process transformation made based on the content of this utility model specification and drawings, or direct or indirect application in other related technical fields, are similarly included in the patent protection scope of this utility model.

Claims

1. A frame welding and fixing device, characterized in that, For welding multiple metal frames, a first frame, a second frame, and at least one third frame, into a closed metal frame (6), including: The base (1) is provided with a workbench (11), the workbench (11) is provided with a first reference line (X1) and a second reference line (X2), wherein the first reference line (X1) and the second reference line (X2) are arranged perpendicular to each other, and the first frame and the second frame are respectively arranged along the first reference line (X1) and the second reference line (X2) on the workbench (11). At least one pushing mechanism (2) is fixed on the base (1) and arranged adjacent to the worktable (11) for pushing the first frame to the first reference line (X1), pushing the second frame to the second reference line (X2), and pushing the third frame to the end of the first frame or the end of the second frame. The pressing mechanism (3) includes a first pressing component (31), a second pressing component (32) and a third pressing component (33) disposed on the base (1). The first pressing component (31) is disposed adjacent to the first frame to press and fix the first frame. The second pressing component (32) is disposed adjacent to the second frame to press and fix the second frame. The third pressing component (33) is disposed adjacent to the third frame to press and fix the third frame. And a welding mechanism (4) is provided above the base (1), the welding mechanism (4) being used to weld the first frame, the second frame and the third frame located on the workbench (11) into a closed metal frame (6).

2. The frame welding and fixing device according to claim 1, characterized in that, It also includes a third reference line (X3), which is connected to one end of the first reference line (X1), and / or the third reference line (X3) is connected to one end of the second reference line (X2), and the pushing mechanism (2) pushes the third frame onto the third reference line (X3) for welding.

3. The frame welding and fixing device according to claim 2, characterized in that, It also includes a limiting mechanism (5), which is disposed on one side of the first reference line (X1), the second reference line (X2) and the third reference line (X3).

4. The frame welding and fixing device according to claim 3, characterized in that, The limiting mechanism (5) includes a first fixed seat (51) and a limiting plate (52). The first fixed seat (51) is fixed on the base (1), and the limiting plate (52) is disposed on the base (1). The limiting surface of the limiting plate (52) is parallel to the first reference line (X1), or the limiting surface of the limiting plate (52) is parallel to the second reference line (X2), or the limiting surface of the limiting plate (52) is parallel to the third reference line (X3).

5. The frame welding and fixing device according to claim 4, characterized in that, Limiting blocks are provided on both sides of the first frame, the second frame and the third frame, and a limiting groove (521) is provided on the limiting plate (52). The limiting blocks are set in the limiting groove (521) for limiting.

6. The frame welding and fixing device according to claim 3, characterized in that, At least one of the pushing mechanisms (2) or at least one of the limiting mechanisms (5) are respectively provided on both sides of the first baseline (X1); at least one of the pushing mechanisms (2) or at least one of the limiting mechanisms (5) are respectively provided on both sides of the second baseline (X2); at least one of the pushing mechanisms (2) or at least one of the limiting mechanisms (5) are respectively provided on both sides of the third baseline (X3).

7. The frame welding and fixing device according to claim 2, characterized in that, The pushing mechanism (2) includes a second fixed seat (21) and a first cylinder (22). The second fixed seat (21) is fixed on the base (1). The first cylinder (22) is disposed on the second fixed seat (21). The driving end of the first cylinder (22) is provided with a pushing plate (23). The pushing surface of the pushing plate (23) is parallel to the first reference line (X1), or the pushing surface of the pushing plate (23) is parallel to the second reference line (X2), or the pushing surface of the pushing plate (23) is parallel to the third reference line (X3).

8. The frame welding and fixing device according to claim 1, characterized in that, The first pressing assembly (31), the second pressing assembly (32), and the third pressing assembly (33) each include a third fixing seat (34) and a second cylinder (35). The third fixing seat (34) is fixed on the base (1), and the second cylinder (35) is disposed on the base (1). The driving end of the second cylinder (35) is provided with a pressing plate (36) so that the pressing plate (36) presses the first frame, the second frame, and the third frame.

9. The frame welding and fixing device according to claim 1, characterized in that, The base (1) is provided with a slide rail (41) around its periphery, and the welding mechanism (4) is provided to slide on the slide rail (41) to weld multiple metal frames, the first frame, the second frame and at least one third frame, into a closed metal frame (6).

10. The frame welding and fixing device according to claim 1, characterized in that, The base (1) is provided with a control valve, which is used to control the start and stop of the pushing mechanism (2), the pressing mechanism (3), and the welding mechanism (4).

Images