A welding fixture for vacuum interrupter

Abstract

The utility model discloses a kind of welding fixing devices for vacuum switch tube, belong to vacuum switch tube welding device technical field;Including workbench, fixed support;Workbench upper surface is provided with guide slot, two clamping blocks are slidably arranged along guide slot;Two clamping blocks are respectively corresponding with the two ends of shell, and the end cover assembly to be welded is installed on two clamping blocks, and end cover assembly is corresponding with the two ends of shell;Groove is opened in workbench, and sliding assembly that can drive clamping block to slide is arranged in groove;Exhaust component is fixedly arranged on clamping block, and exhaust component and the two ends of shell correspond to each other;The end cover assembly to be welded is directly installed on clamping block in the application, while being fixed using clamping block to shell, also can complete the butt joint of end cover assembly and shell, reduce operating procedure.Simultaneously, exhaust component is fixedly arranged on clamping block, can be synchronized adjustment to exhaust component according to welding state.

Description

Technical Field

[0001] This utility model provides a welding and fixing device for vacuum switch tubes, belonging to the technical field of vacuum switch tube welding devices. Background Technology

[0002] Vacuum switch tubes, as core components of high-voltage switchgear, play a crucial role in power systems. Utilizing vacuum as an insulating and arc-extinguishing medium, they possess numerous significant advantages, including small size, long lifespan, high breaking capacity, high reliability, and low maintenance requirements, making them widely used in power transmission and distribution systems of various voltage levels. In the manufacturing process of vacuum switch tubes, the welding of the casing and end cap assembly is a critical step. The casing of the vacuum switch tube is typically made of insulating materials such as ceramics or glass, while the end cap assembly generally includes metal electrodes and sealing components. The welding quality of these two components directly affects the performance and reliability of the vacuum switch tube. Good welding ensures the sealing performance of the vacuum switch tube, preventing external air and impurities from entering the tube, thereby guaranteeing its arc-extinguishing and insulation effects.

[0003] During welding, the outer casing typically needs to be secured first to prevent displacement that could affect welding accuracy. After securing, the end cap assembly must be precisely aligned with the end of the casing to ensure accurate electrode-to-casing connection, involving numerous steps. Furthermore, the welding process generates significant amounts of fumes and harmful gases containing metal vapors, oxide particles, and other hazardous substances. If not promptly removed, these fumes pollute the working environment and harm the health of operators. Currently, the common method for fume extraction is using exhaust ducts, but existing ducts are often fixed in position and cannot be adjusted in real-time according to the welding process. Therefore, there is an urgent need for a welding and securing device for vacuum switch tubes that can solve these problems. Utility Model Content

[0004] The technical problem this invention aims to solve is that the operation steps for fixing and welding the outer shell are numerous, and it is inconvenient to adjust the position of the exhaust pipe used to remove welding fumes according to the working status.

[0005] To solve the above problems, the proposed technical solution is as follows: a welding and fixing device for vacuum switch tubes, comprising a worktable, a fixing frame, the fixing frame being fixedly mounted on the worktable; a housing is placed on the worktable, and welding equipment is installed inside the fixing frame; further comprising:

[0006] Clamping blocks; a guide groove is provided on the upper surface of the workbench, and two clamping blocks are slidably arranged along the guide groove; the two clamping blocks correspond to the two ends of the outer shell respectively, and the end cap assemblies to be welded are installed on the two clamping blocks, and the end cap assemblies correspond to the two ends of the outer shell; a groove is provided in the workbench, and a sliding component that can drive the clamping blocks to slide is provided in the groove;

[0007] Ventilation assembly; the ventilation assembly is fixedly mounted on the clamping block, and the ventilation assembly corresponds to both ends of the outer shell;

[0008] As an improvement, the end cap assembly includes an end cap and a conductive rod, with the conductive rod fixedly connected to the end cap; the end cap assembly is provided with two sets corresponding to the two ends of the outer shell respectively.

[0009] As an improvement, the clamping block has an insertion hole, the conductive rod of the end cap assembly is inserted into the insertion hole, and there is friction between the conductive rod and the insertion hole.

[0010] As an improvement, the exhaust assembly includes a fixing ring and an exhaust pipe; the fixing ring is fixedly sleeved on the clamping block, and several exhaust pipes are evenly distributed in a circular shape on the fixing ring, with the exhaust pipes corresponding to the positions of the two ends of the outer shell; an exhaust fan is provided on the workbench, and the working end of the exhaust fan is connected to the exhaust pipe.

[0011] As an improvement, the sliding assembly includes a bidirectional lead screw and a slider; the bidirectional lead screw is rotatably disposed in the groove, the slider is threadedly connected to the corresponding position of the bidirectional lead screw, and the slider passes through the guide groove and is fixedly connected to the clamping block; a motor is provided on the worktable, and the output end of the motor is fixedly connected to the bidirectional lead screw.

[0012] As an improvement, a support plate is fixedly installed on the workbench, and a positioning groove for placing the outer shell is opened on the support plate.

[0013] The beneficial effects of this utility model are:

[0014] 1. Both clamping blocks are equipped with end cap assemblies to be welded; by directly mounting the end cap assemblies to be welded on the clamping blocks, the end cap assemblies can move with the movement of the clamping blocks; thus, while using the clamping blocks to fix the shell, the docking of the end cap assemblies with the shell can also be completed, reducing the number of operation steps.

[0015] 2. The exhaust assembly is fixedly mounted on the clamping block and can move with the clamping block. When the clamping block is close to the outer shell for clamping operations, the exhaust assembly can also be close to the welding position, thus facilitating efficient removal of welding fumes. When the clamping block is away from the outer shell, the exhaust assembly also moves away from the outer shell, thus facilitating operations such as loading and unloading the outer shell. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention.

[0017] Figure 2 This is a perspective view of the present invention.

[0018] Figure 3 This is a cross-sectional view of the workbench of this utility model.

[0019] Figure 4 This is an exploded view showing the connection between the end cap assembly and the clamping block of this utility model.

[0020] 1. Workbench; 2. Fixing frame; 3. Welding equipment; 4. Support plate; 5. Positioning groove; 6. Housing; 7. Exhaust fan; 8. Clamping block; 9. Groove; 10. Two-way lead screw; 11. Guide groove; 12. Slider; 13. Motor; 14. Fixing ring; 15. Exhaust pipe; 16. Insertion hole; 17. End cap; 18. Conductive rod. Detailed Implementation

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

[0022] according to Figure 1-4 As shown: This utility model provides a welding and fixing device for vacuum switch tubes: including a workbench 1, a fixing frame 2, the fixing frame 2 being fixedly mounted on the workbench 1; a housing 6 is placed on the workbench 1, and a welding device 3 is installed inside the fixing frame 2; a support plate 4 is fixedly mounted on the workbench 1, and a positioning groove 5 for placing the housing 6 is provided on the support plate 4, which can perform preliminary positioning of the housing 6.

[0023] like Figure 2 As shown, a guide groove 11 is provided on the upper surface of the worktable 1, and two clamping blocks 8 are slidably arranged along the guide groove 11; a groove 9 is provided inside the worktable 1, and a sliding component that can drive the clamping blocks 8 to slide is provided in the groove 9.

[0024] The sliding assembly includes a bidirectional lead screw 10 and a slider 12. The bidirectional lead screw 10 is rotatably mounted in the groove 9, and the slider 12 is threadedly connected to the corresponding position of the bidirectional lead screw 10. The slider 12 passes through the guide groove 11 and is fixedly connected to the clamping block 8. A motor 13 is mounted on the worktable 1, and the output end of the motor 13 is fixedly connected to the bidirectional lead screw 10. By setting the structure of the motor 13 and the bidirectional lead screw 10, it is possible to easily achieve simultaneous sliding control of the two clamping blocks 8.

[0025] like Figure 2As shown, two clamping blocks 8 correspond to the two ends of the outer shell 6, respectively. Each clamping block 8 has an end cap assembly to be welded mounted on it, and the end cap assemblies correspond to the two ends of the outer shell 6. Each end cap assembly includes an end cap 17 and a conductive rod 18, with the conductive rod 18 fixedly connected to the end cap 17. The end cap assemblies have two sets corresponding to the two ends of the outer shell 6, allowing for convenient simultaneous alignment of the two sets of end cap assemblies. An insertion hole 16 is provided within the clamping block 8. The conductive rod 18 of the end cap assembly is inserted into the insertion hole 16, and friction exists between the conductive rod 18 and the insertion hole 16, ensuring the stability of the connection between the end cap assembly and the clamping block 8.

[0026] like Figure 2 , 4 As shown, the exhaust assembly is fixedly mounted on the clamping block 8, and the exhaust assembly corresponds to both ends of the outer shell 6. The exhaust assembly includes a fixing ring 14 and an exhaust pipe 15. The fixing ring 14 is fixedly sleeved on the clamping block 8, and several exhaust pipes 15 are evenly distributed in a circular shape on the fixing ring 14, and the positions of the exhaust pipes 15 correspond to the two ends of the outer shell 6. The circularly distributed exhaust pipes 15 can increase the number of suction points, thereby improving the suction effect of welding fumes. An exhaust fan 7 is provided on the workbench 1, and the working end of the exhaust fan 7 is connected to the exhaust pipe 15.

[0027] The principle of this utility model

[0028] like Figure 1 , 2 As shown, when using this application, the outer casing 6 is first placed in the positioning groove 5 of the support plate 4, and the positioning groove 5 is used to initially position the outer casing 6. Figure 4 As shown, the electrical terminal of the end cap 17 assembly is inserted into the socket 16, and the end cap 17 is made to fit against the end of the clamping block 8, thereby mounting the end cap assembly onto the clamping block 8; as Figure 3 As shown, when the motor 13 is started, the two clamping blocks 8 move toward the two ends of the housing 6 under the drive of the slider 12 until the end caps 17 of the two end cap assemblies contact and align with the two ends of the housing 6. At this time, the clamping blocks 8 and the end caps 17 are used to fix the housing 6, reducing the number of operation steps.

[0029] like Figure 2 , 4 As shown, since the exhaust pipe 15 is installed on the clamping block 8, when the clamping block 8 is not close to the outer shell 6, the exhaust pipe 15 is also located away from the end of the outer shell 6, increasing the space around the outer shell 6, thus facilitating the loading and unloading of the outer shell 6; while when the clamping block 8 is close to clamping the outer shell 6, the exhaust pipe 15 is also located close to the end of the outer shell 6, thus bringing the exhaust pipe 15 close to the welding position, so as to efficiently remove the welding fumes at the welding position.

[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A welding and fixing device for a vacuum switch tube, comprising a worktable (1), a fixing frame (2), the fixing frame (2) being fixedly mounted on the worktable (1); a housing (6) is placed on the worktable (1), and welding equipment (3) is disposed inside the fixing frame (2); characterized in that, Also includes: Clamping blocks (8); a guide groove (11) is provided on the upper surface of the workbench (1), and two clamping blocks (8) are slidably arranged along the guide groove (11); the two clamping blocks (8) correspond to the two ends of the outer shell (6) respectively, and the end cap assembly to be welded is installed on the two clamping blocks (8), and the end cap assembly corresponds to the two ends of the outer shell (6); a groove (9) is provided in the workbench (1), and a sliding component that can drive the clamping blocks (8) to slide is provided in the groove (9); Ventilation assembly; the ventilation assembly is fixedly mounted on the clamping block (8), and the ventilation assembly corresponds to both ends of the outer shell (6).

2. The welding and fixing device for a vacuum switch tube according to claim 1, characterized in that: The end cap assembly includes an end cap (17) and a conductive rod (18), with the conductive rod (18) fixedly connected to the end cap (17); the end cap assembly is provided with two sets corresponding to the two ends of the outer shell (6).

3. The welding and fixing device for a vacuum switch tube according to claim 2, characterized in that: The clamping block (8) has an insertion hole (16) inside, and the conductive rod (18) of the end cap assembly is inserted into the insertion hole (16), and there is friction between the conductive rod (18) and the insertion hole (16).

4. The welding and fixing device for a vacuum switch tube according to claim 1, characterized in that: The exhaust assembly includes a fixing ring (14) and an exhaust pipe (15); the fixing ring (14) is fixedly sleeved on the clamping block (8), and several exhaust pipes (15) are evenly distributed in a circular shape on the fixing ring (14), and the positions of the exhaust pipes (15) correspond to the two ends of the outer shell (6); an exhaust fan (7) is provided on the workbench (1), and the working end of the exhaust fan (7) is connected to the exhaust pipe (15).

5. The welding and fixing device for a vacuum switch tube according to claim 1, characterized in that: The sliding assembly includes a bidirectional lead screw (10) and a slider (12); the bidirectional lead screw (10) is rotatably disposed in the groove (9), the slider (12) is threadedly connected to the corresponding position of the bidirectional lead screw (10), and the slider (12) passes through the guide groove (11) and is fixedly connected to the clamping block (8); a motor (13) is provided on the worktable (1), and the output end of the motor (13) is fixedly connected to the bidirectional lead screw (10).

6. The welding and fixing device for a vacuum switch tube according to claim 1, characterized in that: A support plate (4) is fixedly installed on the workbench (1), and a positioning groove (5) for placing the outer shell (6) is provided on the support plate (4).

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