Butt joint tool for welding steel plates of steel cover type air cushion surge chamber

Abstract

The utility model discloses a butt joint tool for welding steel plates of a steel cover type air cushion surge chamber, which comprises a working table, a fixing groove is arranged at the top of the working table, a fixing mechanism is assembled in the fixing groove, and the fixing mechanism comprises a first fixing frame and a second fixing frame. A driving assembly in transmission connection with the first fixing frame and the second fixing frame is fixedly assembled at the bottom of the workbench, the side wall of the first fixing frame is fixedly connected with one end of a connecting block, the other end of the connecting block is fixedly connected with an auxiliary supporting frame, and a limiting assembly is assembled at the top of the auxiliary supporting frame. Through mutual cooperation of the auxiliary supporting frame and the limiting assembly in the fixing mechanism, the stability of the connecting position between the welding piece and the steel plate can be effectively improved, meanwhile, the perpendicularity between the welding piece and the steel plate can be kept in the welding process, welding is more convenient, and the finished product quality after welding is completed is improved.

Description

Technical Field

[0001] This utility model relates to the field of welding tooling technology, specifically to a butt welding tooling for welding steel plates of a steel-covered air cushion pressure regulating chamber. Background Technology

[0002] The steel-shrouded air cushion pressure regulating chamber is a pressure regulating structure used in hydropower projects. It is primarily constructed using a combination of a supporting structure and steel plates. Before welding the steel plates to the supporting structure, vertically distributed weldments need to be welded to the surface of the steel plates to form a prefabricated structure. This prefabricated structure is then welded and fixed to the supporting structure to improve the stability of the connection between the steel plates and the supporting structure. Current methods for welding the vertically arranged weldments to the steel plates mostly involve one person holding the weldment, aligning it with the welding position on the steel plate surface, and then controlling the other hand to weld the weldment. Maintaining the verticality of the weldment during welding is difficult and affects the finished prefabricated structure. Therefore, we propose a butt welding fixture for the steel plates of the steel-shrouded air cushion pressure regulating chamber. Utility Model Content

[0003] The purpose of this utility model is to provide a welding fixture for steel plates of a steel-covered air cushion pressure regulating chamber, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a welding fixture for steel plates of a steel-covered air cushion pressure regulating chamber, including a workbench, a fixing groove on the top of the workbench, and a fixing mechanism assembled in the fixing groove;

[0005] The fixing mechanism includes a first fixing frame and a second fixing frame. A drive assembly that is pulsatorically connected to the first fixing frame and the second fixing frame is fixedly mounted on the bottom of the workbench. One end of a connecting block is fixedly connected to the side wall of the first fixing frame. An auxiliary support frame is fixedly connected to the other end of the connecting block. A limit component is mounted on the top of the auxiliary support frame.

[0006] Preferably, the drive assembly includes a hydraulic telescopic cylinder, which is fixedly mounted on the bottom of the workbench. The output end of the hydraulic telescopic cylinder is fixedly connected to a lifting frame, which is X-shaped. Connecting frames are fixedly connected to the four corners of the lifting frame, and the top of the connecting frame passes through the workbench and is fixedly connected to the first fixed frame and the second fixed frame.

[0007] Preferably, rubber pads are fixedly connected to the bottom of the first and second fixing frames.

[0008] Preferably, the auxiliary support frame is triangular.

[0009] Preferably, the limiting component includes a fixing stud, which is fixedly connected to the top of the auxiliary support frame. The outer side wall of the fixing stud is fitted with a limiting frame, and a fixing nut is screwed onto the outer side wall of the fixing stud.

[0010] Compared with the prior art, the beneficial effects of this utility model are: a butt welding fixture for welding steel plates of a steel cover-type air cushion pressure regulating chamber, which can limit and fix the steel plate and the welded parts through the fixing mechanism set in the fixing groove, and the mutual cooperation between the auxiliary support frame and the limiting component in the fixing mechanism can effectively improve the stability of the connection position between the welded parts and the steel plate, and at the same time maintain the perpendicularity between the welded parts and the steel plate during the welding process, making the welding process more convenient and improving the quality of the finished product after welding. Attached Figure Description

[0011] Figure 1 This is a perspective view of the present invention.

[0012] Figure 2 This is a schematic diagram of the structure of this utility model.

[0013] Figure 3 This is a schematic diagram of the bottom structure of the second fixing frame of this utility model.

[0014] Figure 4 This is a schematic diagram of the limiting component of this utility model.

[0015] Figure 5 This is a structural diagram of the present invention for positioning steel plates and welded parts.

[0016] In the diagram: 1. Workbench; 2. Fixing groove; 3. Fixing mechanism; 31. First fixing frame; 32. Second fixing frame; 33. Connecting block; 34. Auxiliary support frame; 35. Rubber pad; 4. Drive assembly; 41. Hydraulic telescopic cylinder; 42. Lifting frame; 43. Connecting frame; 5. Limiting assembly; 51. Fixing stud; 52. Limiting frame; 53. Fixing nut; 6. Support frame. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0018] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5This utility model provides a technical solution: a welding fixture for welding steel plates in a steel-covered air cushion pressure regulating chamber, including a workbench 1, the top of the workbench 1 is integrally formed with a fixing groove 2, the fixing groove 2 is used to place the horizontally arranged steel plate, and a fixing mechanism 3 is assembled in the fixing groove 2. The fixing mechanism 3 can simultaneously fix the vertically arranged welding parts and the horizontally arranged steel plate in the fixing groove 2, which facilitates the welding and fixing between the welding parts and the steel plate.

[0019] like Figure 2 As shown, the fixing mechanism 3 includes a first fixing frame 31 and a second fixing frame 32. The first fixing frame 31 and the second fixing frame 32 are symmetrically distributed on the left and right sides in the fixing groove 2. By setting two sets of fixing frames, when the length of the steel plate in the fixing groove 2 is too long, the end of the steel plate can be better limited and fixed, thereby enhancing the stability of the steel plate in the fixing groove 2.

[0020] The bottom of the workbench 1 is fixedly equipped with a drive assembly 4 that is connected to the first fixed frame 31 and the second fixed frame 32. The drive assembly 4 can drive the first fixed frame 31 and the second fixed frame 32 to move synchronously, so that the first fixed frame 31 and the second fixed frame 32 move downward along the fixed groove 2 to fix the steel plate in the fixed groove 2.

[0021] The drive assembly 4 includes a hydraulic telescopic cylinder 41, which is fixedly mounted on the bottom of the workbench 1. The output end of the hydraulic telescopic cylinder 41 is fixedly connected to a lifting frame 42, which is X-shaped. Connecting frames 43 are fixedly connected to the four corners of the lifting frame 42. The connecting frames 43 pass through the workbench 1 and are fixedly connected to the front and rear ends of the first fixed frame 31 and the second fixed frame 32. The hydraulic telescopic cylinder 41 is connected to an external hydraulic control pipeline. The movement of the output end of the hydraulic telescopic cylinder 41 is controlled by the external hydraulic control pipeline. The hydraulic telescopic cylinder 41 can drive the lifting frame 42, the connecting frame 43, the first fixed frame 31, and the second fixed frame 32 to move synchronously and limit and fix the steel plate in the fixing groove 2.

[0022] One end of the connecting block 33 is uniformly welded and fixed to the side wall of the first fixing frame 31, and the other end of the connecting block 33 is welded and fixed to the auxiliary support frame 34. The auxiliary support frame 34 is triangular. By setting the auxiliary support frame 34, the perpendicularity between the welded part and the steel plate can be maintained. At the same time, the connecting block 33 can extend the support position of the auxiliary support frame 34 out of the fixing groove 2, which facilitates the subsequent welding.

[0023] like Figure 3As shown, rubber pads 35 are attached to the bottom of the first fixing frame 31 and the second fixing frame 32. By setting the rubber pads 35, the friction between the first fixing frame 31 and the second fixing frame 32 and the steel plate can be increased, thereby strengthening the limiting and fixing effect of the first fixing frame 31 and the second fixing frame 32 on the steel plate.

[0024] A limiting component 5 is installed on the top of the auxiliary support frame 34. The limiting component 5 can further limit and fix the welded parts and the steel plate, thereby improving the accuracy of the position of the welded parts during the welding process.

[0025] like Figure 4 As shown, the limiting component 5 includes a fixing stud 51, which is welded and fixed to the top of the auxiliary support frame 34. There are at least two fixing studs 51, which are located at the top of the frontmost and rearmost auxiliary support frame 34, respectively. A limiting frame 52 is sleeved on the outer wall of the fixing stud 51, and a fixing nut 53 is screwed onto the outer wall of the fixing stud 51. The fixing nut 53 and the fixing stud 51 cooperate to limit and fix the limiting frame 52. The limiting frame 52 clamps and fixes the welded parts to the steel plate. The limiting frame 52 can be replaced according to the thickness of the welded parts to be welded in batches. A limiting frame 52 with a suitable size is selected to limit the welded parts.

[0026] The bottom of the workbench 1 is welded and fixed with support frames 6 that are symmetrically distributed on the left and right, and the workbench 1 is supported and fixed by the support frames 6.

[0027] Working principle: When constructing a steel-shrouded air cushion pressure regulating chamber, vertically installed welded components and horizontally installed steel plates need to be pre-welded. Subsequently, the welded steel plates are welded and fixed to the supporting structure inside the pressure regulating chamber, completing the overall construction of the chamber. During the welding operation, the steel plates are inserted into the fixing groove 2. Then, the drive assembly 4 is controlled to move, causing the hydraulic telescopic cylinder 41 to drive the lifting frame 42 and connecting frame 43 downwards. Through the cooperation of the first fixing frame 31 and the second fixing frame 32, the steel plate is fixed in the fixing groove 2. At this time, the auxiliary support frame 34 is in contact with the surface of the steel plate. The vertically positioned weldment abuts against the side wall of the auxiliary support frame 34. The auxiliary support frame 34 maintains the perpendicularity between the weldment and the steel plate during the welding process. Then, a limit frame 52 of the corresponding size is selected according to the size of the weldment to be welded in batches. The limit frame 52 is fixedly connected to the top of the auxiliary support frame 34 by the fixing nut 53 to maintain the stability of the position between the weldment and the steel plate. The weldment can be welded to the surface of the steel plate using a welding gun. After welding, the limit frame 52 is removed, and the first fixing frame 31 and the second fixing frame 32 are controlled to move upward. The welded steel plate is then taken out from the fixing groove 2.

Claims

1. A welding fixture for steel plates of a steel-shrouded air cushion pressure regulating chamber, comprising a workbench (1), wherein a fixing groove (2) is provided on the top of the workbench (1), characterized in that: The fixing groove (2) is equipped with a fixing mechanism (3); The fixing mechanism (3) includes a first fixing frame (31) and a second fixing frame (32). The bottom of the workbench (1) is fixedly equipped with a drive assembly (4) that is connected to the first fixing frame (31) and the second fixing frame (32). One end of a connecting block (33) is fixedly connected to the side wall of the first fixing frame (31). The other end of the connecting block (33) is fixedly connected to an auxiliary support frame (34). The top of the auxiliary support frame (34) is equipped with a limit assembly (5).

2. The butt welding fixture for welding steel plates in a steel-covered air cushion pressure regulating chamber according to claim 1, characterized in that: The drive assembly (4) includes a hydraulic telescopic cylinder (41), which is fixedly mounted on the bottom of the workbench (1). The output end of the hydraulic telescopic cylinder (41) is fixedly connected to a lifting frame (42). The lifting frame (42) is X-shaped, and connecting frames (43) are fixedly connected to the four corners of the lifting frame (42). The top of the connecting frame (43) passes through the workbench (1) and is fixedly connected to the first fixed frame (31) and the second fixed frame (32).

3. The butt welding fixture for welding steel plates in a steel-covered air cushion pressure regulating chamber according to claim 1, characterized in that: Rubber pads (35) are fixedly connected to the bottom of the first fixing frame (31) and the second fixing frame (32).

4. The butt welding fixture for welding steel plates of a steel-covered air cushion pressure regulating chamber according to claim 1, characterized in that: The auxiliary support frame (34) is triangular.

5. The butt welding fixture for welding steel plates in a steel-covered air cushion pressure regulating chamber according to claim 1, characterized in that: The limiting component (5) includes a fixing stud (51), which is fixedly connected to the top of the auxiliary support frame (34). The outer side wall of the fixing stud (51) is fitted with a limiting frame (52), and a fixing nut (53) is screwed onto the outer side wall of the fixing stud (51).

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