A welding and cutting integrated device suitable for narrow space

Abstract

This invention provides an integrated welding and cutting device suitable for confined spaces, relating to the field of welding and cutting machinery technology. It addresses the problem that existing welding and cutting processes typically require two separate devices, resulting in large footprints and inability to operate in extreme environments. The device includes a support mechanism, a welding mechanism, and a cutting mechanism. The cutting mechanism comprises a floating outer ring structure, a floating inner ring structure, a drive structure, and a cutting section. The drive structure is mounted on and connected to the floating outer ring structure. The welding mechanism is mounted on the floating inner ring structure. The drive structure drives the floating inner ring structure to slide on the support mechanism towards the workpiece, causing the cutting section on the floating inner ring structure to contact the workpiece. The floating outer ring structure can move on the support mechanism towards the workpiece, causing its cutting section to contact the workpiece. The cutting section on the floating outer ring structure cooperates with the cutting section on the floating inner ring structure to cut the rotating workpiece.

Description

Technical Field

[0001] This invention relates to the technical field of welding and cutting machinery and equipment, and in particular to an integrated welding and cutting equipment suitable for confined spaces. Background Technology

[0002] Currently, welding and cutting processes are used in the production and processing of some workpieces. In the existing workpiece welding and cutting process, two independent machines are generally used, and the welding and cutting machines are all divided into dividers.

[0003] This application has identified at least the following technical problems in the prior art:

[0004] Currently, welding and cutting of workpieces typically require two separate machines, which occupy a large space and are costly. Especially in extreme environments, such as confined spaces or harsh conditions where operators cannot access the equipment, welding and cutting operations are simply impossible. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide an integrated welding and cutting device suitable for confined spaces, so as to solve the technical problem that in the prior art, welding and cutting are generally carried out by two independent devices, which occupy a large space and cannot be used for welding and cutting operations in extreme environments.

[0006] To achieve the above objectives, the present invention provides an integrated welding and cutting device suitable for confined spaces, comprising a support mechanism, a welding mechanism, and a cutting mechanism, wherein: the cutting mechanism includes a floating outer ring structure, a floating inner ring structure, a drive structure, and a cutting part; the drive structure is mounted on the floating outer ring structure and can be connected to the floating inner ring structure disposed inside the floating outer ring structure; the welding mechanism is mounted on the floating inner ring structure; the drive structure can drive the floating inner ring structure to slide on the support mechanism toward the workpiece so that the cutting part on the floating inner ring structure abuts against the workpiece; and the floating outer ring structure can move on the support mechanism toward the workpiece so that the cutting part on the floating outer ring structure abuts against the workpiece; when the positioner drives the workpiece it holds to rotate, the cutting part on the floating outer ring structure can cooperate with the cutting part on the floating inner ring structure to cut the workpiece.

[0007] As a further improvement of the present invention, the floating outer ring structure includes a floating outer ring and a movement limiting part. The movement limiting part is mounted on the support mechanism, the floating outer ring is slidably connected to the support mechanism, the drive structure is mounted on the floating outer ring, and the movement limiting part is connected to the floating outer ring to limit the movement range of the floating outer ring.

[0008] As a further improvement of the present invention, the movable limiting part includes a limiting block, a guide shaft and an elastic element. The limiting block is detachably fixed on the support mechanism, the guide shaft is mounted on the limiting block, the elastic element is sleeved around the guide shaft, and the movable limiting part is connected to the floating outer ring through the guide shaft.

[0009] As a further improvement of the present invention, the limiting block includes a mounting body and a limiting plate. The mounting body is U-shaped and includes a first vertical plate, a second vertical plate, and a horizontal connecting plate. The horizontal connecting plate is disposed between the first vertical plate and the second vertical plate and is fixedly connected to the support mechanism. One end of the guide shaft is connected to the first vertical plate, and the other end of the guide shaft can pass through the floating outer ring and connect to the second vertical plate. The guide shaft is disposed above the horizontal connecting plate. The elastic element is disposed between the first vertical plate and the floating outer ring. The limiting plate is fixedly connected to the first vertical plate.

[0010] As a further improvement of the present invention, the floating outer ring includes a drive structure mounting part, a sliding connection part, and a cutting mounting part. The cutting mounting part is provided with the cutting part and is connected to the sliding connection part. The sliding connection part is slidably connected to the support mechanism and is connected to the drive structure mounting part. The drive structure is mounted on the drive structure mounting part.

[0011] As a further improvement of the present invention, the cutting mounting part has an arc-shaped structure, the cutting mounting part includes an upper arc-shaped plate and a lower arc-shaped plate, the upper arc-shaped plate and the lower arc-shaped plate are respectively connected to the top and bottom of the sliding connection part, and a cavity for accommodating the cutting part is formed between the upper arc-shaped plate and the lower arc-shaped plate.

[0012] As a further improvement of the present invention, the driving structure includes a power unit and a connecting structure. The power unit is fixedly connected to the floating outer ring, and the power unit is connected to the floating inner ring structure through the connecting structure. The floating inner ring structure is slidably connected to the support mechanism. The rotation of the power unit can drive the floating inner ring structure to make linear motion through the connecting structure.

[0013] As a further improvement of the present invention, the welding mechanism includes a welding torch and a mounting base. The mounting base is fixed to the bottom of the floating inner ring structure, and the mounting base is provided with a mounting hole for mounting the welding torch. The welding torch is an argon arc welding torch or a plasma arc welding torch.

[0014] As a further improvement of the present invention, two cutting portions are installed on both the floating outer ring structure and the floating inner ring structure, and the cutting portions are at the same horizontal position as the welding gun.

[0015] As a further improvement of the present invention, the support mechanism includes a support plate, a frame is provided at the bottom of the support plate, a movable part is provided at the bottom of the frame, and a support surface for mounting the floating outer ring structure and the floating inner ring structure is formed on the support plate.

[0016] The integrated welding and cutting equipment provided by this invention, suitable for confined spaces, initially rotates the positioner holding the workpiece to complete the welding operation. In this state, the cutting parts on the floating outer ring structure and the floating inner ring structure do not contact the workpiece. After welding, the cutting operation is performed. First, the drive structure drives the floating inner ring structure to slide towards the workpiece on the support mechanism so that the cutting parts on the floating inner ring structure contact the workpiece surface. At this time, the floating outer ring structure is in a fixed state. Therefore, the drive structure at this stage can only make the floating inner ring structure move radially. When the cutting parts on the floating inner ring structure contact the workpiece surface, the workpiece surface will exert a certain force on the cutting parts on the floating inner ring structure. Under the action of this force, the floating outer ring structure will move radially, that is, it can move towards the workpiece on the support mechanism until the cutting parts on the floating outer ring structure also contact the workpiece surface. Then, the positioner holding the workpiece rotates. During the rotation, the drive structure continues to rotate slowly, driving the cutting parts on the floating outer ring structure and the floating inner ring structure to continue feeding, thereby completing the cutting operation. This integrated welding and cutting equipment, suitable for confined spaces, combines the welding and cutting mechanisms into one unit, saving space and making it particularly suitable for operation in tight spaces. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of the integrated welding and cutting equipment for confined spaces provided by the present invention;

[0019] Figure 2 This is an isometric side sectional view of the integrated welding and cutting equipment for confined spaces provided by the present invention;

[0020] Figure 3This is a schematic diagram of the integrated welding and cutting equipment for confined spaces provided by the present invention in its initial state;

[0021] Figure 4 This is a schematic diagram showing the state of the cutting part of the floating inner ring structure in contact with the workpiece provided by the present invention;

[0022] Figure 5 This is a schematic diagram showing the state of the cutting part on the floating outer ring structure in contact with the workpiece provided by the present invention;

[0023] Figure 6 This is another structural schematic diagram of the integrated welding and cutting equipment for confined spaces provided by the present invention.

[0024] Reference numerals: 1. Floating outer ring; 11. Drive structure mounting part; 12. Sliding connection part; 13. Cutting mounting part; 131. Upper arc plate; 132. Lower arc plate; 2. Moving limiting part; 21. Limiting block; 211. Mounting body; 2111. First vertical plate; 2112. Second vertical plate; 2113. Horizontal connecting plate; 212. Limiting plate; 22. Guide shaft; 23. Elastic element; 3. Floating inner ring structure; 4. Power unit; 5. Cutting part; 6. Welding mechanism; 61. Welding torch; 62. Mounting seat; 7. Workpiece; 8. Support mechanism; 81. Support plate; 82. Frame; 83. Moving part; 9. Lead screw; 10. Nut. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0026] In the description of this invention, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] See Figures 1-6 This invention provides an integrated welding and cutting device suitable for confined spaces, including a support mechanism 8, a welding mechanism 6, and a cutting mechanism. The cutting mechanism includes a floating outer ring structure, a floating inner ring structure 3, a drive structure, and a cutting part 5. The drive structure is mounted on the floating outer ring structure and can be connected to the floating inner ring structure 3 located inside the floating outer ring structure. The welding mechanism 6 is mounted on the floating inner ring structure 3. The drive structure can drive the floating inner ring structure 3 to slide on the support mechanism 8 towards the workpiece 7 so that the cutting part 5 on the floating inner ring structure 3 abuts against the workpiece 7. The floating outer ring structure can also move on the support mechanism 8 towards the workpiece 7 so that the cutting part 5 on the floating outer ring structure abuts against the workpiece 7. When the positioner drives the workpiece 7 it is holding to rotate, the cutting part 5 on the floating outer ring structure can cooperate with the cutting part 5 on the floating inner ring structure 3 to cut the workpiece 7.

[0029] This integrated welding and cutting equipment, suitable for confined spaces, rotates the positioner holding the workpiece 7 in its initial state to complete the welding operation. In this state, the cutting parts 5 on the floating outer ring structure and the floating inner ring structure 3 do not contact the workpiece 7. After welding is completed, the cutting operation is performed.

[0030] Specifically, when the integrated welding and cutting equipment for confined spaces provided by this invention is in operation, the drive structure first drives the floating inner ring structure 3 to slide on the support mechanism 8 towards the workpiece 7 so that the cutting part 5 on the floating inner ring structure 3 contacts the surface of the workpiece 7. At this time, the floating outer ring structure is in a fixed state. Therefore, the drive structure at this stage can only make the floating inner ring structure 3 move radially. After the cutting part 5 on the floating inner ring structure 3 contacts the surface of the workpiece 7, the surface of the workpiece 7 will exert a certain force on the cutting part 5 on the floating inner ring structure 3. Under the action of this force, the floating outer ring structure will move radially, that is, it can move on the support mechanism 8 towards the workpiece 7 until the cutting part 5 on the floating outer ring structure also contacts the surface of the workpiece 7. Then, the positioner holding the workpiece 7 rotates. During the rotation, the drive structure continues to rotate slowly, driving the cutting part 5 on the floating outer ring structure and the floating inner ring structure 3 to continue feeding, thereby completing the cutting operation. This integrated welding and cutting equipment for confined spaces integrates the welding mechanism and the cutting mechanism into one unit, saving space and making the equipment particularly suitable for operation in confined spaces.

[0031] Workpiece 7 is a double-layered tube, with the outer and inner layers welded together. It is then cut into two sections by the cutting section 5. Workpiece 7 is held by a liftable positioner (not shown in the figure), which rotates the workpiece 7 during welding and cutting. Furthermore, the relative position of the positioner to the integrated welding and cutting equipment suitable for confined spaces is fixed, and automatic centering is achieved during cutting via a floating cutting mechanism.

[0032] The floating outer ring structure in this embodiment includes a floating outer ring 1 and a moving limiting part 2. The moving limiting part 2 is installed on the support mechanism 8, and the floating outer ring 1 is slidably connected to the support mechanism 8. The drive structure is installed on the floating outer ring 1, and the moving limiting part 2 is connected to the floating outer ring 1. The moving limiting part 2 restricts the movement range of the floating outer ring 1 to ensure the normal operation of the entire device.

[0033] Specifically, in this embodiment, the movable limiting part 2 includes a limiting block 21, a guide shaft 22, and an elastic element 23. The limiting block 21 is detachably fixed to the support mechanism 8 by bolts. The guide shaft 22 is mounted on the limiting block 21. The elastic element 23 is sleeved around the guide shaft 22. The movable limiting part 2 is connected to the floating outer ring 1 through the guide shaft 22. It should be noted that the elastic element 23 in this embodiment is a spring, which has a simple structure.

[0034] In this embodiment, the limiting block 21 includes a mounting body 211 and a limiting plate 212. The mounting body 211 is U-shaped and includes a first vertical plate 2111, a second vertical plate 2112, and a horizontal connecting plate 2113. The horizontal connecting plate 2113 is disposed between the first vertical plate 2111 and the second vertical plate 2112 and is fixedly connected to the support mechanism 8. One end of the guide shaft 22 is connected to the first vertical plate 2111, and the other end of the guide shaft 22 can pass through the floating outer ring 1 and be connected to the second vertical plate 2112. The guide shaft 22 is disposed above the horizontal connecting plate 2113. The elastic element 23 is disposed between the first vertical plate 2111 and the floating outer ring 1. The limiting plate 212 is fixedly connected to the first vertical plate 2111, and the movement distance of the floating outer ring 1 is limited by the limiting plate 212. The limiting block 21 is fixed on the support mechanism 8 and connected to the floating outer ring 1 through the guide shaft 22. It can limit the movement range of the floating outer ring 1. At the same time, the spring is sleeved on the guide shaft 22, pressing against the floating outer ring 1 and in a compressed state, pushing the floating outer ring 1 to contact one end of the limiting block 21 (i.e. the second vertical plate 2112).

[0035] like Figure 6 As shown, the floating outer ring 1 includes a drive structure mounting part 11, a sliding connection part 12, and a cutting mounting part 13. The cutting mounting part 13 is provided with cutting parts 5 and is connected to the sliding connection part 12. The sliding connection part 12 is slidably connected to the support mechanism 8 and is also connected to the drive structure mounting part 11. The drive structure is mounted on the drive structure mounting part 11. Two cutting parts 5 (i.e., cutting heads) are mounted on the cutting mounting part 13, and the drive structure is also fixed to the drive structure mounting part 11. The sliding connection part 12 is mounted on the linear guide rail of the support mechanism 8 and can slide. The sliding range of the floating outer ring 1 is limited by the limiting block 21. A spring provides a certain pressure, pushing the floating outer ring structure to one side of the limiting block 21 in the initial state.

[0036] See Figure 2In this embodiment, the cutting mounting part 13 has an arc-shaped structure. The cutting mounting part 13 includes an upper arc-shaped plate 131 and a lower arc-shaped plate 132. The upper arc-shaped plate 131 and the lower arc-shaped plate 132 are respectively connected to the top and bottom of the sliding connection part 12, and a cavity for accommodating the cutting part 5 is formed between the upper arc-shaped plate 131 and the lower arc-shaped plate 132. The driving structure includes a power part 4 and a connecting structure. The power part 4 is fixedly connected to the floating outer ring 1, and the power part 4 is connected to the floating inner ring structure 3 through the connecting structure. The floating inner ring structure 3 is slidably connected to the support mechanism 8. The rotation of the power part 4 can drive the floating inner ring structure 3 to make linear motion through the connecting structure. The welding mechanism 6 includes a welding torch 61 and a mounting base 62. The mounting base 62 is fixed to the bottom of the floating inner ring structure 3, and the mounting base 62 has a mounting hole for mounting the welding torch 61. The welding torch 61 is an argon arc welding torch 61 or a plasma arc welding torch 61. The cutting adopts extrusion chipless cutting. The floating inner ring structure 3 is equipped with two cutting sections 5 and a welding torch 61. The floating inner ring structure 3 is mounted on the linear guide rail of the support mechanism 8 and is connected to the drive motor (power unit 4) via a lead screw 9 and a nut 10 (the connection structure includes the lead screw 9 and the nut 10). The drive motor can drive the lead screw to rotate, thereby driving the floating inner ring structure 3 to move radially.

[0037] In this embodiment, both the floating outer ring structure and the floating inner ring structure 3 are equipped with two cutting parts 5, and the cutting parts 5 are at the same horizontal position as the welding torch 61. During the welding operation, the cutting parts 5 do not contact the surface of the workpiece 7. The positioner drives the workpiece 7 to complete the rotational movement, thereby completing the circumferential welding operation. Since the weld produced after welding has a certain weld width, and this width is greater than the cutting edge width of the cutting head, after the welding is completed, the cutting operation is performed at the same horizontal height (i.e., the position remains unchanged, and cutting is performed at the original weld position).

[0038] In addition, the support mechanism 8 can be a plate-shaped structure, such as a support plate 81. A frame 82 is provided at the bottom of the support plate 81, and a moving part 83 is installed at the bottom of the frame 82. In this embodiment, the moving part 83 is a moving wheel, which is used to move the frame 82 and the welding and cutting integrated equipment located on the frame 82 that is suitable for narrow spaces. It is labor-saving and convenient. A support surface is formed on the support plate 81 for installing the floating outer ring structure and the floating inner ring structure 3.

[0039] This integrated welding and cutting equipment, suitable for confined spaces, is initially in which the cutting portions 5 on both the floating outer ring structure and the floating inner ring structure 3 are not in contact with the workpiece 7. The floating outer ring 1, under the action of the spring, contacts one end of the limiting block 21. The driving power unit 4 drives the lead screw to rotate, and through the lead screw and nut 10, the rotational motion of the motor is converted into linear motion. Since the floating outer ring 1 is pressed tightly against one end of the limiting device by the force provided by the spring, the floating inner ring structure 3 moves towards the workpiece 7 under the drive of the power unit 4. When the cutting portion 5 on the floating inner ring structure 3 contacts the workpiece 7, and the force exerted by the workpiece 7 on the floating inner ring structure 3 is greater than the supporting force exerted by the spring on the floating outer ring 1, the floating outer ring 1 will move, causing the cutting portion 5 on the floating outer ring 1 to move towards the workpiece 7. The positioner holding the workpiece 7 rotates to complete the cutting operation.

[0040] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A welding and cutting integrated apparatus suitable for a narrow space, characterized in that, The system includes a support mechanism, a welding mechanism, and a cutting mechanism. The cutting mechanism comprises a floating outer ring structure, a floating inner ring structure, a drive structure, and a cutting section. The drive structure is mounted on the floating outer ring structure and can connect to the floating inner ring structure located inside the floating outer ring structure. The welding mechanism is mounted on the floating inner ring structure. The drive structure can drive the floating inner ring structure to slide on the support mechanism towards the workpiece so that the cutting section on the floating inner ring structure abuts against the workpiece. The floating outer ring structure can also move on the support mechanism towards the workpiece so that the cutting section on the floating outer ring structure abuts against the workpiece. When the positioner rotates the workpiece it holds, the cutting section on the floating outer ring structure can cooperate with the cutting section on the floating inner ring structure to cut the workpiece. The welding mechanism includes a welding torch and a mounting base. The mounting base is fixed to the bottom of the floating inner ring structure, and the mounting base has mounting holes for mounting the welding torch. The welding torch is an argon arc welding torch or a plasma arc welding torch. The floating outer ring structure includes a floating outer ring and a moving limiting part. The moving limiting part is mounted on the support mechanism. The floating outer ring is slidably connected to the support mechanism. The driving structure is mounted on the floating outer ring. The moving limiting part is connected to the floating outer ring to limit the movement range of the floating outer ring. The movable limiting part includes a limiting block, a guide shaft, and an elastic element. The limiting block is detachably fixed on the support mechanism. The guide shaft is mounted on the limiting block. The elastic element is sleeved around the guide shaft. The movable limiting part is connected to the floating outer ring through the guide shaft.

2. The integrated welding-cutting apparatus for a narrow space according to claim 1, wherein The limiting block includes a mounting body and a limiting plate. The mounting body is U-shaped and includes a first vertical plate, a second vertical plate, and a horizontal connecting plate. The horizontal connecting plate is disposed between the first vertical plate and the second vertical plate and is fixedly connected to the support mechanism. One end of the guide shaft is connected to the first vertical plate, and the other end of the guide shaft can pass through the floating outer ring and connect to the second vertical plate. The guide shaft is disposed above the horizontal connecting plate. The elastic element is disposed between the first vertical plate and the floating outer ring. The limiting plate is fixedly connected to the first vertical plate.

3. The integrated welding-cutting apparatus for a narrow space according to claim 1, wherein The floating outer ring includes a drive structure mounting part, a sliding connection part, and a cutting mounting part. The cutting mounting part is provided with a cutting part and is connected to the sliding connection part. The sliding connection part is slidably connected to the support mechanism and is connected to the drive structure mounting part. The drive structure is mounted on the drive structure mounting part.

4. The integrated welding-cutting apparatus for a narrow space according to claim 3, wherein The cutting mounting part has an arc-shaped structure and includes an upper arc-shaped plate and a lower arc-shaped plate. The upper arc-shaped plate and the lower arc-shaped plate are respectively connected to the top and bottom of the sliding connection part, and a cavity for accommodating the cutting part is formed between the upper arc-shaped plate and the lower arc-shaped plate.

5. The integrated welding-cutting apparatus for a narrow space according to claim 1, wherein The driving structure includes a power unit and a connecting structure. The power unit is fixedly connected to the floating outer ring, and the power unit is connected to the floating inner ring structure through the connecting structure. The floating inner ring structure is slidably connected to the support mechanism. The rotation of the power unit can drive the floating inner ring structure to make linear motion through the connecting structure.

6. The integrated welding-cutting-in-one apparatus for tight spaces of claim 1, wherein, Both the floating outer ring structure and the floating inner ring structure are equipped with two cutting sections, and the cutting sections are at the same horizontal position as the welding torch.

7. The integrated welding-cutting-in-one apparatus for tight spaces of claim 1, wherein, The support mechanism includes a support plate, a frame is provided at the bottom of the support plate, a movable part is provided at the bottom of the frame, and a support surface is formed on the support plate for mounting the floating outer ring structure and the floating inner ring structure.

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