Gas metal arc welding semi-automatic device for equipment surfacing

Abstract

The utility model belongs to the technical field of pressure vessel equipment manufacturing, and particularly relates to a gas metal arc welding semi-automatic device for equipment surfacing, which is characterized in that a vertical rod is fixed on a movable bottom plate vehicle, and one end of a horizontal rod is connected with the vertical rod through a fixed jacketed pipe; the horizontal rod has the freedom degree of vertical lifting and horizontal translation relative to the vertical rod, the other end of the horizontal rod is connected with the supporting pipe through the hinge type jacketed pipe, and the supporting pipe has the freedom degree of horizontal translation and pitching swing relative to the horizontal rod. One end of the supporting pipe is connected with a shielding gas source, the other end of the supporting pipe is closed, a shielding gas hood and a fixing clamp are fixed to the supporting pipe, and a gas shield welding gun can be installed on the fixing clamp in a relative movement mode. And protective gas enters from the supporting pipe and then is conveyed to the protective gas hood. The device can replace the operation that a welding worker holds a welding gun by hand, the manual welding time is shortened, the welding efficiency is improved, and the labor intensity of the welding worker is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of pressure vessel equipment manufacturing technology, specifically a semi-automatic device for gas metal arc welding for equipment overlay welding. Background Technology

[0002] Gas metal arc welding (GMAW) is widely used in the pressure vessel equipment manufacturing industry due to its wide applicability, high production efficiency, good crack resistance, and simple operation. However, existing GMAW techniques involve hand-held welding torches operated by welders, using high current densities and generating strong arc light. This demands a high level of professional skill from the operators and involves significant labor intensity, inevitably affecting weld quality and work efficiency. Utility Model Content

[0003] In order to solve the problem of unstable operation of welding torch by welding personnel and improve the quality and efficiency of equipment surfacing welding, the purpose of this utility model is to provide a semi-automatic device for gas metal arc welding for equipment surfacing welding.

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

[0005] This utility model includes a movable base carriage, a vertical rod, a fixed clamping tube, a horizontal rod, a hinged clamping tube, a support tube, a protective gas cover connecting tube, a protective gas cover, a fixing clamp, and a gas shielded welding torch. The vertical rod is fixed to the movable base carriage. One end of the horizontal rod is connected to the vertical rod via the fixed clamping tube, and the horizontal rod has the freedom to move vertically and horizontally relative to the vertical rod. The other end of the horizontal rod is connected to the support tube via the hinged clamping tube, and the support tube has the freedom to move horizontally and pitch relative to the horizontal rod. One end of the support tube is connected to a protective gas source, and the other end is closed. A protective gas cover and a fixing clamp are fixed to the support tube. The gas shielded welding torch is movable relative to the fixing clamp and remains fixed after its outlet end moves to the same height as the base of the protective gas cover. The protective gas enters through the support tube and is then delivered to the protective gas cover.

[0006] Wherein: one side of the fixed jacket tube can be moved relative to the vertical rod in the vertical direction and is fixed to the vertical rod after it is moved into place; one end of the horizontal rod can be moved relative to the other side of the fixed jacket tube in the horizontal direction and is fixed to the horizontal rod after the horizontal rod is moved into place.

[0007] The fixed jacketed tube includes jacketed tube A and jacketed tube B, which are fixedly connected to each other or are integral structures. Each jacketed tube A and jacketed tube B is provided with a screw. One side of the fixed jacketed tube is jacketed tube A, and the axial center line of jacketed tube A is in the vertical direction. The other side of the fixed jacketed tube is jacketed tube B, and the axial center line of jacketed tube B is in the horizontal direction.

[0008] One side of the hinged sleeve tube can be movably fitted onto the other end of the horizontal rod in the horizontal direction, and remains fixed to the horizontal rod after it moves into place. One end of the support tube can be movably inserted into the other side of the hinged sleeve tube in the axial direction, and the other side of the hinged sleeve tube remains fixed to the support tube after it moves into place.

[0009] The hinged jacket tube includes jacket tube C and jacket tube D that are hinged to each other. Jacket tube C is provided with a connecting lug and a screw, and jacket tube D is provided with a connecting lug and a screw. Jacket tube C and jacket tube D are hinged together by their respective connecting lugs. One side of the hinged jacket tube is jacket tube C, and the axial center line of jacket tube C is horizontal. The other side of the hinged jacket tube is jacket tube D, and the axial center line of jacket tube D is collinear with the axial center line of the support tube.

[0010] The protective air cover has an internal hollow structure. The protective air cover is fixed to the support tube through a protective air cover connecting pipe. One end of the protective air cover connecting pipe is connected to the inside of the support tube, and the other end of the protective air cover connecting pipe is connected to the inside of the protective air cover. The bottom plate of the protective air cover is a perforated plate.

[0011] One end of the fixing clamp is fixedly connected to the support tube, and the other end of the fixing clamp is a sleeve tube E. The sleeve tube E is provided with a screw. The gas shielded welding torch can be relatively moved through the sleeve tube E and is fixed to the sleeve tube E by the screw after it is moved into place.

[0012] The gas outlet of the gas shielded welding torch is set at the same height as the base plate of the protective gas cover.

[0013] The advantages and positive effects of this utility model are as follows:

[0014] 1. This utility model can replace the operation of welding personnel holding a welding gun, reduce manual welding time, improve welding efficiency, and reduce the labor intensity of welding personnel.

[0015] 2. This utility model has a simple, lightweight, and portable structure, and its operation is not limited by space.

[0016] 3. This utility model has a protective gas cover installed at the gas outlet of the gas shielded welding torch. Its function is to prevent the electric arc, molten pool and high-temperature metal from coming into contact with air, thereby avoiding oxidation and absorption of harmful gases and ensuring welding quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram showing the usage state of the welding pressure vessel equipment of this utility model;

[0019] Figure 3 This is an end view of the base plate of the protective air cover of this utility model;

[0020] Among them: 1 is a movable base plate vehicle, 2 is a vertical rod, 3 is a screw knob, 4 is a fixed jacket tube, 401 is jacket tube A, 402 is jacket tube B, 5 is a horizontal rod, 6 is a hinged jacket tube, 601 is jacket tube C, 602 is jacket tube D, 603 is a connecting lug, 7 is a support tube, 8 is a sealing plate, 9 is a protective gas cover connecting tube, 10 is a protective gas cover, 1001 is a base plate, 11 is a fixing clamp, 1101 is jacket tube E, 12 is a gas shielded welding torch, 13 is a pressure vessel equipment, and 14 is a rotating carriage. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] like Figure 1 As shown, this utility model includes a movable base trolley 1, a vertical rod 2, a fixed clamping tube 4, a horizontal rod 5, a hinged clamping tube 6, a support tube 7, a protective gas cover connecting tube 9, a protective gas cover 10, a fixing clamp 11, and a gas shielded welding torch 12. The bottom of the vertical rod 2 is welded to the movable base trolley 1, and the vertical rod 2 is perpendicular to the base of the movable base trolley 1. One end of the horizontal rod 5 is connected to the vertical rod 2 through the fixed clamping tube 4. The horizontal rod 5 has the freedom to move vertically and horizontally relative to the vertical rod 2. The other end of the horizontal rod 5... The support pipe 7 is connected to the hinged jacket pipe 6. The support pipe 7 has the freedom to translate horizontally and swing in pitch relative to the horizontal rod 5. One end of the support pipe 7 is connected to the protective gas source and the other end is closed. The protective gas cover 10 and the fixing clamp 11 are fixed on the support pipe 7 respectively. The gas shielded welding torch 12 can be relatively moved and installed on the fixing clamp 11. After the gas outlet end of the gas shielded welding torch 12 moves to the same height as the base plate 1001 of the protective gas cover 10, it is fixed with the fixing clamp 11. The protective gas enters through the support pipe 7 and is delivered to the protective gas cover 10.

[0023] In this embodiment, the vertical rod 2, the horizontal rod 5, and the support tube 7 are all cylindrical. The support tube 7 has an internal hollow structure, and a sealing plate 8 is welded to the other end of the support tube 7, thereby sealing the other end of the support tube 7 and allowing all the protective gas to be filled into the protective gas cover 10.

[0024] One side of the fixed jacket tube 4 can be moved vertically and fitted onto the vertical rod 2, and remains fixed to the vertical rod 2 after being moved into position. One end of the horizontal rod 5 can be moved horizontally and inserted into the other side of the fixed jacket tube 4, and remains fixed to the horizontal rod 5 after the horizontal rod 5 is moved into position. In this embodiment, the fixed jacket tube 4 includes jacket tube A401 and jacket tube B402 that are fixedly connected to each other or are integral structures. Each of the jacket tubes A401 and B402 is provided with a screw 3. One side of the fixed jacket tube 4 is the jacket tube A401, and the axial center line of the jacket tube A401 is vertical. The other side of the fixed jacket tube 4 is the jacket tube B402, and the axial center line of the jacket tube B402 is horizontal. During installation, the clamping tube A401 on one side of the fixed clamping tube 4 is inserted into the vertical rod 2, and the clamping tube B402 on the other side is inserted into the horizontal rod 5. Screws 3 are installed on the clamping tube A401 and the clamping tube B402 respectively. By turning the two screws 3 respectively, the vertical lifting height of the device and the horizontal translation position of the device can be adjusted.

[0025] One side of the hinged sleeve tube 6 can be moved horizontally and fitted onto the other end of the horizontal rod 5, and remains fixed to the horizontal rod 5 after it is moved into place. One end of the support tube 7 can be moved axially and inserted into the other side of the hinged sleeve tube 6, and remains fixed to the support tube 7 after it is moved into place. The hinged jacket tube 6 of this embodiment includes a jacket tube C601 and a jacket tube D602 that are hinged to each other. The jacket tube C601 is provided with a connecting lug 603 and a screw 3, and the jacket tube D602 is provided with a connecting lug 603 and a screw 3. The jacket tube C601 and the jacket tube D602 are hinged together by their respective connecting lugs 603. One side of the hinged jacket tube 6 is the jacket tube C601, and the axial center line of the jacket tube C601 is in the horizontal direction. The other side of the hinged jacket tube 6 is the jacket tube D602, and the axial center line of the jacket tube D602 is collinear with the axial center line of the support tube 7. During installation, first assemble and weld the support pipe 7 to the sealing plate 8, the fixing clamp 11, and the protective gas cover connecting pipe 9 respectively; insert the clamping pipe C601 on one side of the hinged clamping pipe 6 into the horizontal rod 5, and insert the clamping pipe C602 on the other side into the support pipe 7. Install screws 3 on the clamping pipe C601 and the clamping pipe D602 respectively. By turning the two screws 3 respectively, the horizontal translation position of the device can be adjusted and the lifting height of the gas shielded welding torch 12 and the protective gas cover 10 can be adjusted.

[0026] In this embodiment, one end of the fixing clamp 11 is welded to the support tube 7, and the other end of the fixing clamp 11 is a jacket tube E1101. A screw 3 is provided on the jacket tube E1101. The gas shielded welding torch 12 can be relatively moved and inserted into the jacket tube E1101. By turning the screw 3, the extension position of the gas shielded welding torch 12 is adjusted. After maintaining the gas outlet end of the gas shielded welding torch 12 at the same height as the base plate 1001 of the protective gas cover 10, the screw 3 is tightened to fix the gas shielded welding torch and the jacket tube E1101. Turning the screw 3 on the jacket tube E1101 and adjusting the opening angle of the hinged jacket tube 6 (i.e., the angle between the jacket tube C601 and the jacket tube D602) adjusts the distance between the gas shielded welding torch 12 and the surface to be welded on the pressure vessel equipment 13.

[0027] In this embodiment, the protective gas cover 10 has a hollow internal structure. The protective gas cover 10 is fixed to the support pipe 7 via a protective gas cover connecting pipe 9. One end of the protective gas cover connecting pipe 9 is welded to the support pipe 7 and communicates with the interior of the support pipe 7. The other end of the protective gas cover connecting pipe 9 communicates with the interior of the protective gas cover 10. The base plate 1001 of the protective gas cover 10 is a perforated plate. Figure 3 As shown. The protective gas shield 10 prevents the electric arc, molten pool, and high-temperature metal from coming into contact with air, thereby avoiding oxidation and absorption of harmful gases and ensuring welding quality.

[0028] The movable base vehicle 1 in this embodiment has a rectangular base, with wheels at all four corners of the rectangular base and a handrail on one side of the rectangle.

[0029] In this embodiment, different shielding gases are used depending on the welding material being welded. For example, if the surface to be welded is white copper BFe30-1-1, the shielding gas used is 99.99% argon; if the surface to be welded is stainless steel S31603 or S30408, the shielding gas used is 100% CO2.

[0030] The working principle of this utility model is as follows:

[0031] like Figure 2 As shown, after placing the device of this utility model in a suitable position, start the rotating carriage 14 to make the pressure vessel equipment 13 rotate at a uniform speed on the rotating carriage 14. Connect the power supply of the gas metal arc welding machine and turn on the protective gas (after the protective gas is introduced into the support pipe 7, it passes through the protective gas cover connecting pipe 9 and finally reaches the holes on the bottom plate 1001 of the protective gas cover 10). After adjusting the wire feeding speed of the welding machine to match the rotating carriage speed, the equipment is surfacing.

Claims

1. A semi-automatic device for gas metal arc welding (GMAW) for equipment surfacing, characterized in that: The assembly includes a movable base carriage (1), a vertical rod (2), a fixed clamping tube (4), a horizontal rod (5), a hinged clamping tube (6), a support tube (7), a protective gas cover connecting tube (9), a protective gas cover (10), a fixing clamp (11), and a gas shielded welding torch (12). The vertical rod (2) is fixed on the movable base carriage (1). One end of the horizontal rod (5) is connected to the vertical rod (2) through the fixed clamping tube (4). The horizontal rod (5) has the freedom to move vertically and horizontally relative to the vertical rod (2). The other end of the horizontal rod (5) is connected to the support tube through the hinged clamping tube (6). (7) Connected, the support tube (7) has the freedom to translate horizontally and swing in pitch relative to the horizontal rod (5); one end of the support tube (7) is connected to the protective gas source and the other end is closed. The support tube (7) is fixed with a protective gas cover (10) and a fixing clamp (11). The gas shielded welding torch (12) can be relatively moved and installed on the fixing clamp (11). After the gas outlet end of the gas shielded welding torch (12) moves to the same height as the bottom plate (1001) of the protective gas cover (10), it is fixed with the fixing clamp (11). The protective gas enters through the support tube (7) and is delivered to the protective gas cover (10).

2. The semi-automatic gas metal arc welding device for equipment surfacing according to claim 1, characterized in that: One side of the fixed sleeve tube (4) can be moved relative to the vertical rod (2) in the vertical direction and remain fixed with the vertical rod (2) after it moves into place. One end of the horizontal rod (5) can be moved relative to the horizontal rod and inserted into the other side of the fixed sleeve tube (4) in the horizontal direction. The other side of the fixed sleeve tube (4) remains fixed with the horizontal rod (5) after it moves into place.

3. The semi-automatic gas metal arc welding device for equipment surfacing according to claim 2, characterized in that: The fixed jacketed tube (4) includes a jacketed tube A (401) and a jacketed tube B (402) that are fixedly connected to each other or are integral structures. Each jacketed tube A (401) and jacketed tube B (402) is provided with a screw (3). One side of the fixed jacketed tube (4) is the jacketed tube A (401), and the axial center line of the jacketed tube A (401) is vertical. The other side of the fixed jacketed tube (4) is the jacketed tube B (402), and the axial center line of the jacketed tube B (402) is horizontal.

4. The semi-automatic gas metal arc welding device for equipment surfacing according to claim 1, characterized in that: One side of the hinged sleeve tube (6) can be moved horizontally and fitted onto the other end of the horizontal rod (5), and remains fixed with the horizontal rod (5) after it moves into place. One end of the support tube (7) can be moved axially and inserted into the other side of the hinged sleeve tube (6), and remains fixed with the support tube (7) after the support tube (7) moves into place.

5. The semi-automatic gas metal arc welding device for equipment surfacing according to claim 4, characterized in that: The hinged jacket tube (6) includes a jacket tube C (601) and a jacket tube D (602) that are hinged to each other. The jacket tube C (601) is provided with a connecting lug (603) and a screw (3), and the jacket tube D (602) is provided with a connecting lug (603) and a screw (3). The jacket tube C (601) and the jacket tube D (602) are hinged together by their respective connecting lugs (603). One side of the hinged jacket tube (6) is the jacket tube C (601), and the axial center line of the jacket tube C (601) is horizontal. The other side of the hinged jacket tube (6) is the jacket tube D (602), and the axial center line of the jacket tube D (602) is collinear with the axial center line of the support tube (7).

6. The semi-automatic gas metal arc welding device for equipment surfacing according to claim 1, characterized in that: The protective air cover (10) has an internal hollow structure. The protective air cover (10) is fixed to the support tube (7) through the protective air cover connecting pipe (9). One end of the protective air cover connecting pipe (9) is connected to the inside of the support tube (7), and the other end of the protective air cover connecting pipe (9) is connected to the inside of the protective air cover (10). The bottom plate (1001) of the protective air cover (10) is a perforated plate.

7. The semi-automatic gas metal arc welding device for equipment surfacing according to claim 1, characterized in that: One end of the fixing clamp (11) is fixedly connected to the support tube (7), and the other end of the fixing clamp (11) is a sleeve tube E (1101). The sleeve tube E (1101) is provided with a screw (3). The gas shielded welding torch (12) can be relatively moved through the sleeve tube E (1101) and is fixed to the sleeve tube E (1101) by the screw (3) after it is moved into place.

8. The semi-automatic gas metal arc welding device for equipment surfacing according to claim 1, characterized in that: The gas outlet of the gas shielded welding torch (12) is set at the same height as the base plate (1001) of the protective gas cover (10).

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