Automatic gas welding device for tubular cast tungsten carbide welding rod

Abstract

The utility model discloses an automatic gas welding device for tubular cast tungsten carbide welding rods, which relates to the technical field of welding and comprises a workbench, a supporting block is arranged at the top end of the workbench, a pipe fitting welding fixing mechanism is arranged at the top of the supporting block, and a rotary driving component is arranged at one end of the pipe fitting welding fixing mechanism and positioned on the side wall of the supporting block; a support is arranged at the top end of the workbench, a connecting frame is arranged at the top end of the support, and a gas welding gun is arranged at the bottom of the connecting frame and located on the side edge of the pipe welding fixing mechanism. And an automatic welding rod leading-in mechanism is arranged on one side of the workbench. The pipe fitting welding device can automatically weld pipe fittings, improves welding efficiency, achieves surrounding type welding at the same time, improves welding uniformity and quality, improves continuity and automation level of welding operation through the welding rod automatic leading-in mechanism, reduces the situation that welding rods are stuck possibly in the welding process, and improves welding quality. And the welding efficiency and the welding seam quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to an automatic gas welding device for a tubular cast tungsten carbide welding rod. Background Art

[0002] Gas welding automatic welding device is a device that uses gas fuel (such as acetylene or hydrogen) and oxygen to generate flame for welding. Gas welding automatic welding device can improve welding efficiency and quality, and is particularly suitable for continuous production environment.

[0003] Tubular cast tungsten carbide welding rods are made of tungsten carbide powder mixed with a metal binder (such as nickel or cobalt) using casting technology. Tungsten carbide is a very hard material, and its main characteristics are extremely high wear resistance and hardness. Tubular cast tungsten carbide welding rods are often used for welding pipes and other round or cylindrical structures.

[0004] Existing gas welding devices, such as Chinese Patent 202222940474.7, disclose an automatic welding device for a gas shielded machine, which includes an automatic gas welding machine body, a limit assembly, and a screw assembly, which can fix the metal to be welded, making it easier for the welding assembly to weld. However, the above device still has the following shortcomings: after the device clamps the tubular metal, the tubular metal cannot rotate due to the lack of the necessary rotation mechanism, so the tubular metal cannot be circumferentially welded. Utility Model Content

[0005] In view of the problems in the related technology, the utility model provides a gas welding automatic welding device for tubular cast tungsten carbide welding rods to overcome the above technical problems existing in the existing related technology.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] A gas welding automatic welding device for a tubular cast tungsten carbide electrode comprises a workbench, a support block is arranged at the top of the workbench, a pipe welding fixing mechanism is arranged at the top of the support block, a rotating drive assembly is arranged at one end of the pipe welding fixing mechanism and at the side wall of the support block; a bracket is arranged at the top of the workbench, a connecting frame is arranged at the top of the bracket, a gas welding gun is arranged at the bottom of the connecting frame and at the side of the pipe welding fixing mechanism; and an automatic welding rod introduction mechanism is arranged at one side of the workbench.

[0008] Furthermore, in order to fix the tubular metal, the pipe welding and fixing mechanism includes a bearing arranged on the top of the support block, a pipe is inserted in the bearing, a pipe sleeve is arranged inside one end of the pipe, a boss is arranged at the end of the pipe and above the pipe sleeve, a bolt is arranged inside the boss, a through hole is arranged at the top of the pipe sleeve, and the bottom end of the bolt extends into the through hole; side ears are arranged on both sides of one end of the pipe close to the pipe sleeve, pins are arranged on both sides of the pipe sleeve, and the ends of the pins pass through the side ears; a pressure plate is arranged at the bottom end of the bolt and in the through hole.

[0009] Furthermore, in order to allow the fixed tubular metal to rotate during the welding process, the rotation drive assembly includes a first gear sleeved on the outside of an end of the pipe away from the pipe sleeve, a first motor is provided on the side wall of the support block, and a second gear meshing with the first gear is provided on the output shaft of the first motor.

[0010] Furthermore, in order to improve the continuity and automation level of the welding operation, the automatic welding rod introduction mechanism includes a vertical plate arranged on one side of the workbench, a welding rod guide hole is arranged on the top of the vertical plate, a frame is arranged at the end of the welding rod guide hole away from the gas welding gun, two driving rollers are arranged in the frame, and one end of the driving roller is connected to the second motor; a groove is arranged in the middle of the driving roller and on the side of the welding rod guide hole.

[0011] The beneficial effects of the utility model are:

[0012] (1) The utility model can automatically weld pipe fittings, improve welding efficiency, and realize circumferential welding, thereby improving welding uniformity and quality.

[0013] (2) By setting up a pipe welding fixing mechanism, the tubular metal is fixed, and the bolts and pressure plates further enhance the stability of the fixation; by setting up a rotating drive assembly and a gas welding gun, the fixed tubular metal can be rotated during the welding process. The rotating mechanism allows circumferential welding, which improves the uniformity and quality of the welding, and further ensures the consistency and strength of the weld when performing full-circle welding.

[0014] (3) By setting up an automatic electrode introduction mechanism, the continuity and automation level of the welding operation are improved. The design of the electrode guide hole and groove ensures the correct guidance and stability of the tubular cast tungsten carbide electrode during the transportation process, reducing the electrode jamming that may occur during welding, thereby improving the welding efficiency and weld quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of a gas welding automatic welding device for a tubular cast tungsten carbide electrode according to an embodiment of the utility model;

[0017] Figure 2 It is a structural schematic diagram of a pipe welding fixing mechanism in a gas welding automatic welding device of a tubular cast tungsten carbide welding rod according to an embodiment of the utility model;

[0018] Figure 3 It is a structural schematic diagram of a rotary drive assembly in a gas welding automatic welding device for a tubular cast tungsten carbide electrode according to an embodiment of the utility model;

[0019] Figure 4 The utility model is a schematic structural diagram of an automatic welding rod introduction mechanism in a gas welding automatic welding device for a tubular cast tungsten carbide welding rod according to an embodiment of the utility model.

[0020] In the figure:

[0021] 1. Workbench; 2. Support block; 3. Pipe welding fixing mechanism; 301. Bearing; 302. Pipe; 303. Pipe sleeve; 304. Boss; 305. Bolt; 306. Through hole; 307. Side ear; 308. Pin; 309. Press plate; 4. Rotary drive assembly; 401. First gear; 402. First motor; 403. Second gear; 5. Bracket; 6. Connecting frame; 7. Gas welding gun; 8. Automatic welding rod introduction mechanism; 801. Vertical plate; 802. Welding rod guide hole; 803. Frame; 804. Driving roller; 805. Second motor; 806. Groove. DETAILED DESCRIPTION

[0022] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0023] According to an embodiment of the utility model, a gas welding automatic welding device for a tubular cast tungsten carbide electrode is provided.

[0024] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-4 As shown, the automatic gas welding device for tubular cast tungsten carbide welding rods according to the embodiment of the utility model includes a workbench 1, a support block 2 is arranged at the top of the workbench 1, a pipe welding fixing mechanism 3 is arranged on the top of the support block 2, a rotating drive assembly 4 is arranged at one end of the pipe welding fixing mechanism 3 and located on the side wall of the support block 2; a bracket 5 is arranged at the top of the workbench 1, a connecting frame 6 is arranged at the top of the bracket 5, a gas welding gun 7 is arranged at the bottom of the connecting frame 6 and located on the side of the pipe welding fixing mechanism 3; and an automatic welding rod introduction mechanism 8 is arranged on one side of the workbench 1.

[0025] Among them, the gas welding gun is a tool that uses combustion gas (usually a mixture of acetylene and oxygen) to generate a high-temperature flame, which is used to melt metal materials for welding. The tubular cast tungsten carbide electrode is suitable for welding operations that require high strength and wear resistance due to its high melting point and hardness. The gas welding gun 7 outputs a suitable flame through its nozzle to heat the tubular metal and the tungsten carbide electrode to be delivered. The temperature of the flame is sufficient to melt the tungsten carbide electrode, causing it to fuse with the surface of the tubular metal to form a weld.

[0026] With the aid of the above scheme, the utility model can automatically weld pipe fittings, improve welding efficiency, and realize circumferential welding, thereby improving welding uniformity and quality.

[0027] In one embodiment, for the above-mentioned pipe welding fixing mechanism 3, the pipe welding fixing mechanism 3 includes a bearing 301 arranged on the top of the support block 2, a pipe 302 is inserted in the bearing 301, a pipe sleeve 303 is arranged inside one end of the pipe 302, a boss 304 is arranged at the end of the pipe 302 and above the pipe sleeve 303, a bolt 305 is arranged inside the boss 304, the bolt 305 is connected to the inner thread of the boss 304, and the pipe sleeve 303 is provided with a screw thread. A through hole 306 is provided at the top end, and the bottom end of the bolt 305 extends into the through hole 306; side ears 307 are provided on both sides of one end of the pipe 302 close to the pipe sleeve 303, and pins 308 are provided on both sides of the pipe sleeve 303, and the ends of the pins 308 pass through the side ears 307; a pressure plate 309 is provided at the bottom end of the bolt 305 and located in the through hole 306, thereby realizing the fixation of the tubular metal, and the bolt 305 and the pressure plate 309 further enhance the stability of the fixation.

[0028] The working principle of the pipe welding fixing mechanism 3 is as follows: the pipe 302 is tightly combined with the tubular metal to be welded through the pipe sleeve 303. The bolt 305 cooperates with the pressing plate 309 through the through hole 306, and the bolt 305 is rotated to make the bolt 305 descend, driving the pressing plate 309 to descend and press the tubular metal, further strengthening the fixation of the tubular metal and ensuring its stable position during the welding process.

[0029] In one embodiment, for the above-mentioned rotation drive assembly 4, the rotation drive assembly 4 includes a first gear 401 that is sleeved on the outer side of one end of the pipe 302 away from the pipe sleeve 303, and a first motor 402 is provided on the side wall of the support block 2. A second gear 403 that meshes with the first gear 401 is provided on the output shaft of the first motor 402, so that the fixed tubular metal can rotate during the welding process. The rotation mechanism allows circumferential welding, improves the uniformity and quality of welding, and further ensures the consistency and strength of the weld when performing full-circle welding.

[0030] The working principle of the rotation drive assembly 4 is as follows: the first motor 402 drives the second gear 403 to rotate, and the second gear 403 meshes with the first gear 401, thereby rotating the pipe 302 and the tubular metal fixed thereto.

[0031] In one embodiment, for the above-mentioned welding rod automatic introduction mechanism 8, the welding rod automatic introduction mechanism 8 includes a vertical plate 801 arranged on one side of the workbench 1, and a welding rod guide hole 802 is arranged on the top of the vertical plate 801. A frame 803 is arranged at the end of the welding rod guide hole 802 away from the gas welding gun 7, and two driving rollers 804 are arranged in the frame 803. One end of the driving roller 804 is connected to a second motor 805. In addition, the above-mentioned first motor 402 and the second motor 805 are connected to an external control panel, and the operator starts the use of the first motor 402 and the second motor 805 through the control panel; a groove 806 is arranged in the middle of the driving roller 804 and on the side of the welding rod guide hole 802, thereby improving the continuity and automation level of the welding operation. The design of the welding rod guide hole 802 and the groove 806 ensures the correct guidance and stability of the tubular cast tungsten carbide welding rod during the transportation process, reduces the welding rod jamming that may occur during the welding process, and thus improves the welding efficiency and weld quality.

[0032] The working principle of the welding rod automatic introduction mechanism 8 is as follows: one end of the tubular cast tungsten carbide welding rod passes through the grooves 806 of the two driving rollers 804 and the welding rod guide hole 802 and extends to the welding position of the pipe fitting. The driving roller 804, driven by the second motor 805, actively transports the tubular cast tungsten carbide welding rod to the bottom of the gas welding gun 7, that is, the welding position of the pipe fitting.

[0033] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0034] In actual application, first fix the tubular metal to be welded in the pipe welding fixing mechanism 3 to ensure its stability. The gas welding gun 7 heats the welding point of the tubular metal, and the tubular cast tungsten carbide welding rod is transported to the welding point of the tubular metal through the automatic welding rod introduction mechanism 8, and the tubular metal and the welding rod are heated by high temperature. The tubular cast tungsten carbide welding rod melts under the action of high temperature and fuses with the surface of the tubular metal to form a solid weld. At the same time, start the rotary drive assembly 4 to make the tubular metal start to rotate. The rotation of the tubular metal is used to achieve circumferential welding, thereby achieving a uniform welding effect. After the welding is completed, stop all mechanical actions, check the welding quality and take out the tubular welded parts.

[0035] In summary, the utility model can automatically weld pipe fittings, improve welding efficiency, and realize circumferential welding, thereby improving welding uniformity and quality. By setting a pipe fitting welding fixing mechanism 3, the fixation of the tubular metal is achieved, and the bolts 305 and the pressure plate 309 further enhance the stability of the fixation; by setting a rotating drive assembly 4 and a gas welding gun 7, the fixed tubular metal can be rotated during the welding process, and the rotating mechanism allows circumferential welding, which improves the uniformity and quality of the welding, and further ensures the consistency and strength of the weld when performing full-circle welding. By setting an automatic welding rod introduction mechanism 8, the continuity and automation level of the welding operation are improved. The design of the welding rod guide hole 802 and the groove 806 ensures the correct guidance and stability of the tubular cast tungsten carbide welding rod during the transportation process, reduces the welding rod jamming that may occur during the welding process, and thus improves the welding efficiency and weld quality.

[0036] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic gas welding device for tubular cast tungsten carbide welding rods, comprising a workbench (1), characterized in that: A support block (2) is arranged at the top of the workbench (1), a pipe welding fixing mechanism (3) is arranged at the top of the support block (2), and a rotation drive assembly (4) is arranged at one end of the pipe welding fixing mechanism (3) and located on the side wall of the support block (2); A bracket (5) is arranged at the top of the workbench (1), a connecting frame (6) is arranged at the top of the bracket (5), and a gas welding gun (7) is arranged at the bottom of the connecting frame (6) and on the side of the pipe welding fixing mechanism (3); A welding rod automatic introduction mechanism (8) is provided on one side of the workbench (1).

2. The automatic gas welding device for tubular cast tungsten carbide welding rod according to claim 1 is characterized in that: The pipe welding fixing mechanism (3) comprises a bearing (301) arranged at the top of the support block (2), a pipe (302) being inserted into the bearing (301), a pipe sleeve (303) being arranged inside one end of the pipe (302), a boss (304) being arranged at the end of the pipe (302) and above the pipe sleeve (303), a bolt (305) being arranged inside the boss (304), a through hole (306) being arranged at the top of the pipe sleeve (303), and the bottom end of the bolt (305) extending into the through hole (306).

3. The automatic gas welding device for tubular cast tungsten carbide welding rod according to claim 2, characterized in that: Side ears (307) are provided on both sides of one end of the pipe (302) close to the pipe sleeve (303), and pins (308) are provided on both sides of the pipe sleeve (303), with the ends of the pins (308) passing through the side ears (307).

4. The automatic gas welding device for tubular cast tungsten carbide welding rod according to claim 3 is characterized in that: A pressure plate (309) is provided at the bottom end of the bolt (305) and located inside the through hole (306).

5. The automatic gas welding device for tubular cast tungsten carbide welding rod according to claim 4, characterized in that: The rotary drive assembly (4) comprises a first gear (401) sleeved on the outer side of an end of the pipe (302) away from the pipe sleeve (303), a first motor (402) is arranged on the side wall of the support block (2), and a second gear (403) meshing with the first gear (401) is arranged on the output shaft of the first motor (402).

6. The automatic gas welding device for tubular cast tungsten carbide welding rod according to claim 5, characterized in that: The welding rod automatic introduction mechanism (8) comprises a vertical plate (801) arranged on one side of the workbench (1), a welding rod guide hole (802) being arranged on the top of the vertical plate (801), a frame (803) being arranged at one end of the welding rod guide hole (802) away from the gas welding gun (7), two driving rollers (804) being arranged in the frame (803), and a second motor (805) being connected to one end of the driving roller (804).

7. The automatic gas welding device for tubular cast tungsten carbide welding rod according to claim 6, characterized in that: A groove (806) is provided in the middle of the driving roller (804) and on the side of the welding rod guide hole (802).

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