Automatic welding device for intersecting line of all-welded ball valve

Abstract

The utility model relates to the technical field of ball valve intersecting line welding equipment, in particular to an automatic welding device for an all-welded ball valve intersecting line. According to the technical scheme, the automatic welding device comprises an automatic welding mechanical arm and a welding gun, and further comprises a welding table arranged under the welding gun; the all-welded ball valve body is installed on the upper surface of the welding table and located under the welding gun, and the welding table is provided with a lifting mechanism which blocks the all-welded ball valve body and prevents welding slag from splashing when the all-welded ball valve body is welded. According to the all-welded ball valve welding device, the welding table, the light filtering plate, the lifting blocking cover, the lifting mechanism and other structures are matched, before all-welded ball valves are welded, the ball valves with large sizes can be moved to the containing table from multiple directions through the supporting equipment, and operation limitation of the supporting equipment is avoided. And meanwhile, when the all-welded ball valve is welded, the protective cover has the same function as the protective cover, welding slag can be prevented from splashing, eyes can be protected when a worker checks the welded ball valve, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valve intersection line welding equipment, in particular to an automatic welding device for the intersection line of a fully welded ball valve. Background Art

[0002] A fully welded ball valve is a type of ball valve that is often used in pipeline systems, especially in environments that require high pressure or high temperature. It is usually made of strong materials to ensure that it can withstand working environments under high pressure and high temperature conditions. The intersection line of a fully welded ball valve refers to the relative position of the ball body of the ball valve and the axis of the pipeline. Automatic welding of fully welded ball valves usually requires the help of a robotic arm. When the robotic arm welds a fully welded ball valve, there is usually a special workbench to support the welded ball valve. This workbench can provide stable support and fixation to ensure the accuracy and stability of the ball valve position during welding. However, when the welding gun at the end of the ball valve welding robotic arm welds the intersection line of the ball valve, it will produce dazzling strong light and splashing welding slag. If a protective cover is provided on the robotic arm, and a door is provided on the protective cover for disassembly and assembly of the ball valve. However, when the ball valve is large in size, additional support or equipment is required for installation and disassembly. At this time, the blocking door will hinder the use of these supporting equipment or operating tools, which will lead to limited operation and increase the complexity and risk of operation. Utility Model Content

[0003] The utility model aims to solve the problems existing in the background technology and proposes an automatic welding device for the intersection line of a fully welded ball valve.

[0004] The technical solution of the utility model is as follows: an automatic welding device for the intersection line of a fully welded ball valve comprises an automatic welding mechanical arm and a welding gun, and also comprises: a welding table, which is arranged directly below the welding gun; a fully welded ball valve body installed on the upper surface of the welding table and directly below the welding gun, wherein a lifting mechanism is provided on the welding table to block and prevent welding slag from splashing when the fully welded ball valve body is welded; and a light filter plate made of polycarbonate is adopted, which is used to move up and down with the lifting mechanism and filter the strong light generated by welding the fully welded ball valve body.

[0005] Optionally, the lifting mechanism includes a lifting cover that is slidably mounted on the welding table, the interior of the lifting cover is fixedly connected to a spiral connecting plate, the welding table and the automatic welding robot arm are fixedly connected via an L-shaped connecting plate, the outer wall of the L-shaped connecting plate is fixedly connected to a pair of support frames, the end of the support frame away from the L-shaped connecting plate is fixedly connected to a pair of upper and lower corresponding circular plates, one of the circular plates is fixedly connected to the upper surface of one of the circular plates, the output shaft of the motor movably passes through the other circular plate and is fixedly connected to a spiral rod, the end of the spiral rod away from the motor output shaft is rotatably connected to the lower surface of the welding table, and the spiral rod is spirally connected to the spiral connecting plate.

[0006] Optionally, the lifting shield is provided with an observation port for installing a light filter plate.

[0007] Optionally, the upper surface of the welding table is provided with a pair of placement seats for supporting the fully welded ball valve body.

[0008] Optionally, a buffer pad is fixedly connected to the bottom end of the lifting shield to reduce excessive noise generated when the lifting shield hits the ground.

[0009] Optionally, a slot is provided at the bottom of the lifting shield just above the L-shaped connecting plate.

[0010] Optionally, multiple rotation grooves are provided on multiple ends of the welding table, and the interiors of the rotation grooves are all rotatably connected with rotation rods that contact the inner wall of the lifting shield.

[0011] Compared with the prior art, the utility model has the following beneficial technical effects:

[0012] The utility model utilizes the cooperation of the welding table, the optical filter plate, the lifting shield and the lifting mechanism, etc., and before welding the fully welded ball valve, the larger ball valve can be moved to the placement table from multiple directions by the support equipment, so as to avoid the operation restriction of the support equipment. Furthermore, when welding the fully welded ball valve, it also has the same function as the protective cover, which can not only prevent the splashing of welding slag, but also allow the staff to protect their eyes when checking the welded ball valve, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the first state structure of a fully welded ball valve intersection line automatic welding device of the utility model is given;

[0014] Figure 2 A schematic diagram of the second state structure of a fully welded ball valve intersection line automatic welding device of the utility model is given;

[0015] Figure 3 for Figure 2 Schematic diagram of part of the structure.

[0016] Figure numerals: 1. Automatic welding robot arm; 11. Welding gun; 2. L-shaped connecting plate; 21. Support frame; 22. Motor; 23. Circular plate; 24. Screw rod; 25. Screw connecting plate; 3. Welding table; 31. Placement seat; 32. Fully welded ball valve body; 33. Rotating groove; 34. Rotating rod; 4. Lifting cover; 41. Observation port; 42. Light filter; 43. Card slot; 5. Buffer base pad. DETAILED DESCRIPTION

[0017] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0018] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0019] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0020] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] It should be noted that the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] like Figure 1-3As shown, the utility model proposes an automatic welding device for the intersection line of a fully welded ball valve, including an automatic welding robot arm 1 and a welding gun 11. When the welding gun 11 welds the intersection line of the fully welded ball valve, the arc generated by the welding gun 11 generates extremely high temperature during the welding process, which will cause the welding area to emit bright strong light. This strong light is caused by the high temperature of the arc, and its temperature can reach several thousand degrees Celsius, causing the metal to melt in the welding area and form a weld. At the same time, during the welding process, when the welding gun 11 welds the fully welded ball valve, oxides or other impurities may exist on the surface of the ball valve. When the welding arc acts on these surfaces, these impurities will be heated and suddenly evaporated, thereby generating splashing welding slag. It also includes: a welding table 3, the upper surface of the welding table 3 is provided with a pair of placement seats 31 supporting the fully welded ball valve body 32, and multiple rotating grooves 33 are opened on the multiple ends of the welding table 3. The interior of the rotating groove 33 is rotatably connected to a rotating rod 34 that contacts the inner wall of the lifting shield 4. The function of the rotating rod 34 is to make the lifting shield 4 very smooth when sliding on the welding table 3. The fully welded ball valve body 32 is arranged directly below the welding gun 11; the welding table 3 is provided with a lifting mechanism to block and prevent the slag from splashing when the fully welded ball valve body 32 is welded; the light filter plate 42 is made of polycarbonate, and the material of the light filter plate 42 has high transparency and impact resistance, which can effectively prevent sparks, splashes and other objects from causing damage to the eyes. It is used to move up and down with the lifting mechanism and filter the strong light generated by the welding of the fully welded ball valve body 32.

[0024] Furthermore, the lifting mechanism includes a lifting shield 4 that is slidably sleeved on the welding platform 3. The bottom end of the lifting shield 4 is fixedly connected with a buffer pad 5 that reduces the excessive sound generated when the lifting shield 4 is against the ground. The buffer pad 5 is made of rubber, and rubber has a high energy absorption capacity. When the sound wave hits the rubber surface, part of the energy will be absorbed by the rubber and converted into tiny heat energy, thereby reducing the reflection and propagation of the sound wave. At the same time, rubber has good elasticity and softness, can effectively absorb vibration and impact force, slow down the propagation speed of sound waves between objects, and thus reduce the propagation of sound. The bottom of the lifting shield 4 is located just above the L-shaped connecting plate 2 and is provided with a card slot 43. The lifting shield 4 is provided with an observation port 41 for installing a light filter plate 42. The interior of the lifting shield 4 is fixedly connected with a spiral connecting plate 25. The welding table 3 and the automatic welding robot arm 1 are fixedly connected through the L-shaped connecting plate 2. The outer wall of the L-shaped connecting plate 2 is fixedly connected with a pair of support frames 21. The end of the support frame 21 away from the L-shaped connecting plate 2 is fixedly connected with a pair of upper and lower corresponding circular plates 23, wherein the upper surface of one circular plate 23 is fixedly connected with a motor 22, and the output shaft of the motor 22 movably passes through the other circular plate 23 and is fixedly connected with a spiral rod 24. The end of the spiral rod 24 away from the output shaft of the motor 22 is rotatably connected to the lower surface of the welding table 3, and the spiral rod 24 is spirally connected to the spiral connecting plate 25.

[0025] In this embodiment, when it is necessary to use a fully welded ball valve intersection line automatic welding device, such as Figure 1 As shown, the larger fully welded ball valve body 32 is placed on the placement seat 31 through the support equipment. At this time, the support equipment can be operated on multiple sides of the lifting shield 4. Before starting the automatic welding robot arm 1, the motor 22 inside the lifting shield 4 is started first. The output shaft of the motor 22 drives the spiral rod 24 to rotate. Since the spiral rod 24 and the spiral connecting plate 25 are spirally connected, the spiral connecting plate 25 pushes the lifting shield 4 to move upward until the spiral connecting plate 25 is against the lower surface of the welding table 3. At this time, the automatic welding robot arm 1 can be started so that the welding gun 11 welds the intersection line on the fully welded ball valve body 32. Figure 2 As shown, the welding slag generated by the welding gun 11 welding the fully welded ball valve body 32 will be blocked by the lifting shield 4 to prevent the welding slag from splashing everywhere. At the same time, when the staff needs to check the welding status of the fully welded ball valve body 32, they only need to observe the fully welded ball valve body 32 during welding through the light filter 42 in the observation port 41. Since the light filter 42 is made of polycarbonate, it can effectively avoid the stimulation and damage of strong light to the eyes. When the lifting shield 4 moves up and down outside the welding table 3, the lifting shield 4 rolls with the rotating rod 34 in the rotating groove 33, thereby making the sliding between the lifting shield 4 and the welding table 3 smoother.

[0026] The preferred embodiments of the utility model of the above utility model are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic welding device for the intersection line of a fully welded ball valve, comprising an automatic welding robot arm (1) and a welding gun (11), characterized in that: Also includes: A welding platform (3) is arranged directly below the welding gun (11); A fully welded ball valve body (32) is mounted on the upper surface of the welding platform (3) and is located directly below the welding gun (11). The welding platform (3) is provided with a lifting mechanism for blocking and preventing welding slag from splashing when welding the fully welded ball valve body (32); A light filter plate (42) made of polycarbonate is used to move up and down with the lifting mechanism and filter the strong light generated by the welded all-welded ball valve body (32).

2. The fully welded ball valve intersection line automatic welding device according to claim 1 is characterized in that: The lifting mechanism comprises a lifting shield (4) slidably mounted on the welding platform (3), the interior of the lifting shield (4) being fixedly connected with a spiral connecting plate (25), the welding platform (3) and the automatic welding robot arm (1) being fixedly connected via an L-shaped connecting plate (2), the outer wall of the L-shaped connecting plate (2) being fixedly connected with a pair of support frames (21), one end of the support frame (21) away from the L-shaped connecting plate (2) being fixedly connected with a pair of upper and lower corresponding circular plates (23), the upper surface of one of the circular plates (23) being fixedly connected with a motor (22), the output shaft of the motor (22) movably passing through the other circular plate (23) and then being fixedly connected with a spiral rod (24), the end of the spiral rod (24) away from the output shaft of the motor (22) being rotatably connected with the lower surface of the welding platform (3), and the spiral rod (24) being spirally connected with the spiral connecting plate (25).

3. The fully welded ball valve intersection line automatic welding device according to claim 2 is characterized in that: The lifting shield (4) is provided with an observation port (41) for installing a light filter plate (42).

4. The fully welded ball valve intersection line automatic welding device according to claim 1 is characterized in that: The upper surface of the welding platform (3) is provided with a pair of placement seats (31) for supporting the fully welded ball valve body (32).

5. The fully welded ball valve intersection line automatic welding device according to claim 2 is characterized in that: A buffer pad (5) is fixedly connected to the bottom end of the lifting shield (4) to reduce the loud noise produced when the lifting shield (4) is pressed against the ground.

6. The fully welded ball valve intersection line automatic welding device according to claim 2 is characterized in that: The bottom of the lifting shield (4) is located just above the L-shaped connecting plate (2) and is provided with a clamping groove (43).

7. The automatic welding device for the intersection line of a fully welded ball valve according to claim 2 is characterized in that: A plurality of rotation grooves (33) are provided on multiple ends of the welding platform (3), and the interiors of the rotation grooves (33) are all rotationally connected to rotation rods (34) that contact the inner wall of the lifting shield (4).

Images