Welding device for water box body of turbonator stator coil bent and inclined structure

Abstract

The utility model belongs to the technical field of stator coils, and particularly relates to a welding device for a steam turbine generator stator coil inclined structure water box body, which comprises an outer positioning frame, the inner wall of the outer positioning frame is fixedly connected with a pipe thread joint positioning block, and the top end of the pipe thread joint positioning block is provided with a pipe thread joint profiling positioning groove. A box body fixing frame is rotationally connected to the inner wall of the outer positioning frame, spring pressing plates are installed on the two sides of the box body fixing frame, and an extrusion connecting rod is rotationally connected to the bottom end of the box body fixing frame; the box body fixing frame, the extrusion connecting rod and the pipe thread connector fixing pressing strip are matched to extrude and fix the pipe thread connector, so that the pipe thread connector and the box body can be quickly and accurately spliced, and the pipe thread connector and the box body do not need to be clamped and fixed again after being disassembled when welding seams on the outer sides of the pipe thread connector and the box body are welded; and the welding step of the pipe thread joint and the box body is effectively simplified.

Description

Technical Field

[0001] The utility model belongs to the technical field of stator coils, and in particular relates to a welding device for a water box body of a bent and inclined structure of a stator coil of a steam turbine generator. Background Art

[0002] The water box body of the bent and inclined structure of the stator coil of the steam turbine generator is composed of a pipe threaded joint and a box body. The pipe threaded joint needs to be inserted into the wall hole of the box body, and the inner and outer splicing seams of the pipe threaded joint and the box body are welded and fixed. The welding device of the water box body of the bent and inclined structure of the stator coil of the steam turbine generator is divided into two parts: a pipe threaded joint and a box body positioning mechanism and a welding gun. The pipe threaded joint and the box body positioning mechanism part is used to accurately position the pipe threaded joint and the box body. When the currently used pipe threaded joint and the box body positioning mechanism is used, it is necessary to perform a clamping operation once to adjust the inner splicing seam of the pipe threaded joint and the box body to face upwards. After the welding of the inner splicing seam is completed, the pipe threaded joint and the box body are disassembled and clamped for a second time, and the outer splicing seam of the pipe threaded joint and the box body is adjusted to face upwards, and the outer splicing seam of the pipe threaded joint and the box body is welded. The operation steps are cumbersome and inconvenient. Utility Model Content

[0003] The utility model provides a welding device for a water box body of a steam turbine generator stator coil with a bent and inclined structure. The device has the characteristics that when welding the outer welding seam of the pipe threaded joint and the box body, it is not necessary to disassemble the pipe threaded joint and the box body and then clamp and fix them again, which effectively simplifies the welding steps of the pipe threaded joint and the box body and improves the welding efficiency of the pipe threaded joint and the box body.

[0004] The utility model provides the following technical scheme: a welding device for a water box body of a steam turbine generator stator coil bending and oblique structure, comprising an outer positioning frame, an inner wall of the outer positioning frame is fixedly connected with a pipe threaded joint positioning block, the top of the pipe threaded joint positioning block is provided with a pipe threaded joint profiling positioning groove, the inner wall of the outer positioning frame is rotatably connected with a box body fixed frame, spring pressure plates are installed on both sides of the box body fixed frame, the bottom end of the box body fixed frame is rotatably connected with an extrusion connecting rod, and the bottom end of the extrusion connecting rod is fixedly connected with a pipe threaded joint fixing pressure strip.

[0005] Wherein, a side limit block is fixedly connected to the inner wall of the outer positioning frame, and the side limit block is in conflict with the spring pressure plate.

[0006] Wherein, a welding slag guide block is fixedly connected to the inner wall of the bottom end of the outer positioning frame, the welding slag guide block is fixedly connected to the pipe threaded joint positioning block, and a welding slag cleaning port is opened on the side wall of the outer positioning frame.

[0007] Among them, a magnetic positioning block is embedded in the inner wall of the pipe threaded joint profiling positioning groove, and the magnetic positioning block is flush with the inner wall of the pipe threaded joint profiling positioning groove. A damping shaft is fixedly connected to the bottom end of the fixed frame of the box body, and the damping shaft is fixedly connected to the extrusion connecting rod, and the extrusion connecting rod is rotatably connected to the fixed frame of the box body through the damping shaft.

[0008] The side wall of the fixed frame of the box body is fixedly connected with a rotating connecting rod, the rotating connecting rod is rotatably connected to the inner wall of the outer positioning frame, and the side wall of the fixed frame of the box body is fixedly connected with a limiting plug.

[0009] The beneficial effects of the utility model are as follows: the pipe threaded joint and the box body are positioned respectively by means of the pipe threaded joint positioning block, the pipe threaded joint contoured positioning groove, the box body fixed frame and the spring pressure plate, and the pipe threaded joint is extruded and fixed by means of the box body fixed frame, the extrusion connecting rod and the pipe threaded joint fixed pressure strip, so that the pipe threaded joint and the box body can be quickly and accurately spliced, and the box body can be quickly positioned by flipping the box body fixed frame, and when welding the outer welding seam of the pipe threaded joint and the box body, it is not necessary to disassemble the pipe threaded joint and the box body and clamp and fix them again, which effectively simplifies the welding steps of the pipe threaded joint and the box body and improves the welding efficiency of the pipe threaded joint and the box body.

[0010] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 It is a schematic diagram of the rotating state of the fixed frame of the box body in the utility model;

[0013] Figure 3 It is a top view of the utility model;

[0014] Figure 4 It is a cross-sectional view of the fixed frame of the box body in the utility model.

[0015] In the figure: 1. External positioning frame; 11. Side limiting block; 12. Welding slag guide block; 13. Welding slag cleaning port; 2. Pipe threaded joint positioning block; 21. Pipe threaded joint contour positioning groove; 22. Magnetic positioning block; 3. Box body fixed frame; 31. Spring pressure plate; 32. Extrusion connecting rod; 33. Pipe threaded joint fixed pressure strip; 34. Damping shaft; 4. Rotating connecting rod; 41. Limiting plug. DETAILED DESCRIPTION

[0016] See also Figure 1-Figure 4The utility model provides the following technical solutions: a welding device for a water box body with a bent and inclined structure of a steam turbine generator stator coil, comprising an outer positioning frame 1, a pipe threaded joint positioning block 2 is fixedly connected to the inner wall of the outer positioning frame 1, a pipe threaded joint profiling positioning groove 21 is provided at the top of the pipe threaded joint positioning block 2, a box body fixed frame 3 is rotatably connected to the inner wall of the outer positioning frame 1, spring pressure plates 31 are installed on both sides of the box body fixed frame 3, an extrusion connecting rod 32 is rotatably connected to the bottom end of the extrusion connecting rod 32, and a pipe threaded joint fixing pressure strip 33 is fixedly connected to the bottom end of the extrusion connecting rod 32.

[0017] In this embodiment: in the initial state, the box body fixed frame 3 is flipped to the left side, and the staff installs the pipe threaded joint in the pipe threaded joint profiling positioning groove 21, and the inner wall of the pipe threaded joint profiling positioning groove 21 is in contact with the pipe threaded joint. Then the staff flips the box body fixed frame 3 to cover the pipe threaded joint positioning block 2, and the extruded connecting rod 32 and the pipe threaded joint fixed pressure strip 33 are flipped together with the box body fixed frame 3, and the pipe threaded joint fixed pressure strip 33 is pressed on the top of the pipe threaded joint. The pipe threaded joint is fixed by means of the extruded connecting rod 32, the pipe threaded joint fixed pressure strip 33 and the pipe threaded joint positioning block 2, and then the box body is placed in the box body fixed frame 3, and the spring pressure plate 31 is used to The box body is fixed, and the pipe threaded joint and the box body can be quickly and accurately spliced. Then the staff uses a welding gun to weld the inner welding seam of the pipe threaded joint and the box body. After the welding of the inner welding seam is completed, the staff flips the fixed frame 3 of the box body. After the flipping is completed, the fixed frame 3 of the box body is fixed again by the outer positioning frame 1 and the limiting plug 41, and the box body can be positioned again. The staff can directly weld the outer welding seam of the pipe threaded joint and the box body. When welding the outer welding seam of the pipe threaded joint and the box body, there is no need to disassemble the pipe threaded joint and the box body and clamp and fix them again, which effectively simplifies the welding steps of the pipe threaded joint and the box body and improves the efficiency of welding the pipe threaded joint and the box body.

[0018] The inner wall of the outer positioning frame 1 is fixedly connected with a side limit block 11, and the side limit block 11 is in contact with the spring pressure plate 31; by setting the side limit block 11, the fixed frame 3 of the box body and the spring pressure plate 31 can be limited and supported, so that the fixed frame 3 of the box body can be accurately flipped 180 degrees.

[0019] A welding slag guide block 12 is fixedly connected to the inner wall of the bottom end of the outer positioning frame 1, and the welding slag guide block 12 is fixedly connected to the pipe threaded joint positioning block 2. A welding slag cleaning port 13 is opened on the side wall of the outer positioning frame 1; by setting the welding slag guide block 12, the welding slag that falls when the fixed frame 3 of the box body is flipped can be guided, so that the welding slag can be guided to the welding slag cleaning port 13, so that the staff can clean the welding slag conveniently.

[0020] A magnetic positioning block 22 is embedded in the inner wall of the pipe threaded joint profiling positioning groove 21, and the magnetic positioning block 22 is flush with the inner wall of the pipe threaded joint profiling positioning groove 21. A damping shaft 34 is fixedly connected to the bottom end of the fixed frame 3 of the box body, and the damping shaft 34 is fixedly connected to the extrusion connecting rod 32. The extrusion connecting rod 32 is rotatably connected to the fixed frame 3 of the box body through the damping shaft 34; by providing the magnetic positioning block 22, the pipe threaded joint placed in the pipe threaded joint profiling positioning groove 21 can be magnetically positioned to avoid the pipe threaded joint itself from being offset before the pipe threaded joint fixing strip 33 is pressed onto the top of the pipe threaded joint, and by providing the damping shaft 34, the extrusion connecting rod 32 and the pipe threaded joint fixing strip 33 can be rotated to avoid obstruction to the movement of the welding gun.

[0021] The side wall of the fixed frame 3 of the box body is fixedly connected with a rotating connecting rod 4, which is rotatably connected to the inner wall of the outer positioning frame 1, and the side wall of the fixed frame 3 of the box body is fixedly connected with a limiting plug 41; the rotating connecting rod 4 can be used to turn over the fixed frame 3 of the box body, and the rotating connecting rod 4 is offset to one side of the fixed frame 3 of the box body, so that when the fixed frame 3 of the box body is turned over, the pipe threaded joint will not conflict with the pipe threaded joint positioning block 2, and the limiting plug 41 is provided to fill the gap between the fixed frame 3 of the box body and the outer positioning frame 1, so that the fixed frame 3 of the box body can be turned over. The fixed frame 3 will not be laterally offset under the limiting action of the external positioning frame 1 and the limiting plug 41. The limiting plug 41 is made of magnet material. The stability of the fixed frame 3 of the box body is further increased by the magnetic attraction force between the limiting plug 41 and the external positioning frame 1. During the welding process, the fixed frame 3 of the box body will not be subjected to an upward force. The gravity of the device itself and the resistance applied by the limiting plug 41 to the fixed frame 3 of the box body are sufficient to limit the fixed frame 3 of the box body in the vertical direction, thereby maintaining the stability of the pipe threaded joint and the box body during welding.

[0022] The working principle and use process of the utility model are as follows: in the initial state, the box body fixed frame 3 is flipped to the left side, and the staff installs the pipe threaded joint in the pipe threaded joint profiling positioning groove 21, and the inner wall of the pipe threaded joint profiling positioning groove 21 is fitted with the pipe threaded joint. Then the staff flips the box body fixed frame 3 to cover the pipe threaded joint positioning block 2, and the extruded connecting rod 32 and the pipe threaded joint fixing pressure strip 33 are flipped together with the box body fixed frame 3, and the pipe threaded joint fixing pressure strip 33 is pressed on the top of the pipe threaded joint. The pipe threaded joint is fixed by means of the extruded connecting rod 32, the pipe threaded joint fixing pressure strip 33 and the pipe threaded joint positioning block 2. Then the staff The box body is placed in the fixed frame 3 of the box body, and the box body is fixed with the help of the spring pressure plate 31. Then the staff uses a welding gun to weld the pipe threaded joint and the inner welding seam of the box body. After the welding of the inner welding seam is completed, the staff flips the fixed frame 3 of the box body. After the flipping is completed, the fixed frame 3 of the box body is fixed again by the outer positioning frame 1 and the limiting plug 41, and the box body can be positioned again. The staff directly welds the pipe threaded joint and the outer welding seam of the box body. Before and after the flipping of the fixed frame 3 of the box body, the limiting plugs 41 are filled in the gap between the fixed frame 3 of the box body and the outer positioning frame 1, and the fixed frame 3 of the box body is positioned horizontally and vertically.

Claims

1. A welding device for a water box body with a bent and slanted structure of a steam turbine generator stator coil, characterized in that: The utility model comprises an outer positioning frame (1), the inner wall of the outer positioning frame (1) is fixedly connected with a pipe thread joint positioning block (2), the top of the pipe thread joint positioning block (2) is provided with a pipe thread joint profiling positioning groove (21), the inner wall of the outer positioning frame (1) is rotatably connected with a box body fixed frame (3), both sides of the box body fixed frame (3) are equipped with spring pressure plates (31), the bottom end of the box body fixed frame (3) is rotatably connected with an extrusion connecting rod (32), and the bottom end of the extrusion connecting rod (32) is fixedly connected with a pipe thread joint fixing pressure strip (33).

2. A welding device for a water box body with a bent and slanted structure of a steam turbine generator stator coil according to claim 1, characterized in that: A side limit block (11) is fixedly connected to the inner wall of the outer positioning frame (1), and the side limit block (11) is in contact with the spring pressure plate (31).

3. The welding device for the water box body of the bent and slanted structure of the stator coil of the steam turbine generator according to claim 1 is characterized in that: A welding slag guide block (12) is fixedly connected to the inner wall of the bottom end of the outer positioning frame (1), and the welding slag guide block (12) is fixedly connected to the pipe threaded joint positioning block (2). A welding slag cleaning port (13) is provided on the side wall of the outer positioning frame (1).

4. A welding device for a water box body with a bent and slanted structure of a steam turbine generator stator coil according to claim 1, characterized in that: A magnetic positioning block (22) is embedded in the inner wall of the pipe threaded joint profiling positioning groove (21), and the magnetic positioning block (22) is flush with the inner wall of the pipe threaded joint profiling positioning groove (21). A damping shaft (34) is fixedly connected to the bottom end of the box body fixed frame (3), and the damping shaft (34) is fixedly connected to the extrusion connecting rod (32). The extrusion connecting rod (32) is rotatably connected to the box body fixed frame (3) via the damping shaft (34).

5. The welding device for the water box body of the bent and slanted structure of the stator coil of the steam turbine generator according to claim 1 is characterized in that: The side wall of the box body fixed frame (3) is fixedly connected with a rotating connecting rod (4), the rotating connecting rod (4) is rotatably connected to the inner wall of the outer positioning frame (1), and the side wall of the box body fixed frame (3) is fixedly connected with a limiting plug (41).

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