Ground screen welding auxiliary device

Abstract

The utility model belongs to the technical field of welding tools, and discloses a ground screen welding auxiliary device which comprises a frame arranged outside a mold in a sleeving mode. A mold fixing assembly and a grounding body fixing assembly are arranged on the frame; one end of the mold fixing assembly is connected with the frame, and the other end of the mold fixing assembly is connected with the mold and used for fixing the mold in the frame. The grounding body fixing assembly is used for fixing a grounding body to be welded to the mold. According to the utility model, when the mould and the grounding body are welded, the mould and the grounding body are completely fixed, the relative position between the mould and the grounding body is ensured to be fixed, and unqualified welding caused by insufficient welding and the like due to displacement is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding tooling, and in particular relates to a ground grid welding auxiliary device. Background Art

[0002] In subway and high-speed rail projects, the grounding grid of the pavilion is an important system to ensure the safety of the pavilion equipment and staff. The traction substation has very strict requirements on the resistance of the grounding grid. If cold solder joints occur during the welding process of the grounding grid, it will often affect the resistance of the entire grounding grid. Therefore, it is very important to solve the problem of cold solder joints in the grounding grid.

[0003] Existing grounding grids are typically welded by skilled welders, but this requires a high level of experience and is prone to cold welds, which can affect the weld pass rate. Furthermore, with existing welding tools, after a period of use, the mesh clamps can become damaged by high temperatures, leading to loose connections and shifting spacing between mesh interfaces, resulting in cold welds. Temporarily moving the mesh or the mold after connection can also cause shifts in spacing, further leading to cold welds.

[0004] Therefore, there is an urgent need for a ground grid welding auxiliary device that is suitable for various types of welding molds and can improve the qualified rate of ground grid welding to solve the problems existing in the prior art. Utility Model Content

[0005] The purpose of this utility model is to provide a ground grid welding auxiliary device suitable for various types of welding molds and to improve the qualified rate of ground grid welding. The specific technical solution is as follows:

[0006] A ground grid welding auxiliary device includes a frame sleeved on the outside of a mold;

[0007] The frame is provided with a mold fixing assembly and a grounding body fixing assembly;

[0008] One end of the mold fixing assembly is connected to the frame, and the other end is connected to the mold, and is used to fix the mold inside the frame;

[0009] The grounding body fixing assembly is used to fix the grounding body to be welded to the mold.

[0010] Preferably, the mold fixing assembly includes a first screw rod, and the frame is provided with a threaded hole corresponding to the first screw rod, one end of the first screw rod is connected to the threaded hole, and the other end is used to support the mold in the frame;

[0011] The first screw rods and threaded holes are symmetrically provided in at least two groups on the frame.

[0012] Preferably, the grounding body fixing assembly includes at least four groups of clamps evenly distributed around the mold, and the clamps include a bracket, a lower clamping block, an upper clamping block and a second screw rod;

[0013] The bracket is fixed on the frame, the upper clamping block and the lower clamping block are arranged on the bracket, the upper clamping block can move relative to the lower clamping block and the upper clamping block and the lower clamping block are combined to clamp the grounding body to be welded, one end of the second screw rod is connected to the upper clamping block, and the other end is connected to the bracket through a thread.

[0014] Preferably, the upper clamping block and the lower clamping block are provided with fixing grooves matching the outer contour of the grounding body to be welded.

[0015] Preferably, both the second screw rod and the first screw rod are provided with a cross bar.

[0016] Preferably, the first screw rod is further provided with a pressing seat for resisting the mold.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] A ground grid welding auxiliary device includes a frame that is mounted on the outside of a mold; the frame is provided with a mold fixing assembly and a grounding body fixing assembly; one end of the mold fixing assembly is connected to the frame and the other end is connected to the mold, for fixing the mold inside the frame; the grounding body fixing assembly is used to fix the grounding body to be welded to the mold. With this arrangement, when welding the mold and the grounding body, the mold and the grounding body are completely fixed, ensuring a fixed relative position between the two, and preventing displacement that could result in a cold weld and other unqualified welds.

[0019] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 1 is a schematic structural diagram of the ground grid welding auxiliary device in the embodiment when in use;

[0021] Figure 2 1 is a schematic structural diagram of a ground grid welding auxiliary device in an embodiment;

[0022] Figure 3 yes Figure 2 A schematic diagram of the structure of the grounding body fixing component;

[0023] In the figure: 1. mold; 2. grounding body; 3. frame; 4. mold fixing assembly, 4.1. first screw rod, 4.2. clamping seat; 5. grounding body fixing assembly, 5.1. bracket, 5.2. lower clamping block, 5.3. upper clamping block, 5.4. second screw rod. DETAILED DESCRIPTION

[0024] The following describes the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0025] Example:

[0026] refer to Figure 1 and Figure 2 A ground grid welding auxiliary device includes a frame 3 that is mounted on the exterior of a mold 1; a mold fixing assembly 4 and a grounding body fixing assembly 5 are provided on the frame 3; one end of the mold fixing assembly 4 is connected to the frame 3, and the other end is connected to the mold 1, for fixing the mold 1 inside the frame 3; the grounding body fixing assembly 5 is used to secure the grounding body 2 to be welded to the mold 1. This arrangement completely secures the mold and grounding body during welding, ensuring a fixed relative position between the two and preventing displacement that could result in a cold weld and other weld failures.

[0027] The mold fixing assembly 4 includes a first screw rod 4.1, and a threaded hole corresponding to the first screw rod 4.1 is provided on the frame 3. One end of the first screw rod 4.1 is connected to the threaded hole, and the other end is used to support the mold 1 in the frame 3; the first screw rod 4.1 and the threaded hole are symmetrically provided in at least two groups on the frame 3.

[0028] The grounding body fixing assembly 5 includes at least four groups of clamps evenly distributed around the mold 1, and the clamps include a bracket 5.1, a lower clamping block 5.2, an upper clamping block 5.3 and a second screw rod 5.4; the bracket 5.1 is fixedly set on the frame 3, and the upper clamping block 5.3 and the lower clamping block 5.2 are set on the bracket 5.1, the upper clamping block 5.3 can be moved relative to the lower clamping block 5.2, and the upper clamping block and the lower clamping block are combined to clamp the grounding body 2 to be welded, one end of the second screw rod 5.4 is connected to the upper clamping block 5.3, and the other end is connected to the bracket 5.1 through a thread.

[0029] The grounding body fixing assembly and the mold fixing assembly in this embodiment are both connected and fixed by screw rods, and the mold is clamped by the screw rods, which can be applicable to various types of molds. Similarly, the upper clamping block is controlled by a screw rod to move, so that the upper and lower clamping blocks can adapt to grounding bodies of different models and materials. The mold and the grounding body are fixed by the above structure, and the position between the mold and the grounding body can be guaranteed before and after welding, thereby ensuring the welding quality.

[0030] The upper clamping block 5.3 and the lower clamping block 5.2 are provided with fixing grooves matching the outer contour of the grounding body 2 to be welded.

[0031] The second screw rod 5.4 and the first screw rod 4.1 are both provided with a cross bar, which facilitates the rotation and tightening of the first and second screw rods. In particular, the cross bar on the first screw rod can be rotated to a vertical position to support the mold and the frame.

[0032] The first screw rod 4.1 is also provided with a pressing seat 4.2 for pressing against the mold 1. The pressing seat can be made of rubber.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A ground grid welding auxiliary device, characterized in that: It comprises a frame (3) sleeved on the outside of the mold (1); The frame (3) is provided with a mold fixing assembly (4) and a grounding body fixing assembly (5); One end of the mold fixing assembly (4) is connected to the frame (3), and the other end is connected to the mold (1), and is used to fix the mold (1) inside the frame (3); The grounding body fixing assembly (5) is used to fix the grounding body (2) to be welded to the mold (1).

2. A ground grid welding auxiliary device according to claim 1, characterized in that: The mold fixing assembly (4) includes a first screw rod (4.1), and the frame (3) is provided with a threaded hole corresponding to the first screw rod (4.1). One end of the first screw rod (4.1) is connected to the threaded hole, and the other end is used to abut the mold (1) in the frame (3); The first screw rods (4.1) and threaded holes are symmetrically provided in at least two groups on the frame (3).

3. A ground grid welding auxiliary device according to claim 2, characterized in that: The grounding body fixing assembly (5) comprises at least four groups of clamps evenly distributed around the mold (1), the clamps comprising a bracket (5.1), a lower clamping block (5.2), an upper clamping block (5.3) and a second screw rod (5.4); The bracket (5.1) is fixedly arranged on the frame (3); the upper clamping block (5.3) and the lower clamping block (5.2) are arranged on the bracket (5.1); the upper clamping block (5.3) is movable relative to the lower clamping block (5.2); and the upper clamping block and the lower clamping block are combined to clamp the grounding body (2) to be welded; one end of the second screw rod (5.4) is connected to the upper clamping block (5.3), and the other end is connected to the bracket (5.1) through a thread.

4. A ground grid welding auxiliary device according to claim 3, characterized in that: The upper clamping block (5.3) and the lower clamping block (5.2) are provided with fixing grooves matching the outer contour of the grounding body (2) to be welded.

5. A ground grid welding auxiliary device according to claim 4, characterized in that: The second screw rod (5.4) and the first screw rod (4.1) are both provided with a cross bar.

6. A ground grid welding auxiliary device according to claim 5, characterized in that: The first screw rod (4.1) is also provided with a pressing seat (4.2) for pressing against the mold (1).

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