Lapping grounding assembly for steel pipe welding

Abstract

The utility model discloses a lap joint grounding assembly for steel pipe welding, which comprises a grounding pile, upper buckles and a spring wire, a lap joint ring is fixed on the top of the upper end of the grounding pile, a plurality of upper buckles are sleeved on the outer wall of the lap joint ring, lower buckles are connected below the joints of the upper buckles and the lap joint ring, and a positioning column is fixed in the middle of the lower end of each upper buckle. A connecting pin with a fixing function penetrates into the connecting position of the upper buckle and the lower buckle, and a chain penetrates into the top of the upper buckle. When the lap joint assembly for steel pipe welding is used, the whole ground stud serves as a part, making direct contact with the ground, of a steel pipe electric welding machine, and on a plurality of steel pipe welding stations, stand columns and external threads at the bottom of the ground stud are screwed into the steel pipe welding stations in a threaded connection mode; and the requirement of a user on subsequent grounding connection of a plurality of steel pipe electric welding machines is met.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe welding grounding components, in particular to a lap grounding assembly for steel pipe welding. Background Art

[0002] Welded steel pipe refers to a steel pipe with seams on the surface that is made by bending steel strips or steel plates into round, square and other shapes and then welding them. Electric welders are required in the welding process. When using electric welders, grounding is a must. During grounding, when more than two electric welders are used in the same place, the grounding wire of each electric welder must be connected in parallel to the grounding busbar or an independent grounding terminal.

[0003] The utility model discloses a grounding device for electric welding machine (CN209913054U), which belongs to the field of grounding technology for electric welding machine. The device comprises: a wire pressing plate is located in a wiring barrel, one end of the grounding wire is placed between the second plate surface of the wire pressing plate and the inner wall of the wiring barrel, and a first bolt passes through a threaded hole provided on the wiring barrel and then presses against the first plate surface of the wire pressing plate, so that the end of the grounding wire will be fixed in the wiring barrel. A magnet is located in a first blind hole, a first fixed shaft is connected to the second end of the body, the inner and outer rings of the first bearing are respectively in contact with the side wall of the first fixed shaft and the inner wall of the rotating sleeve, and the wiring barrel is connected to the outer wall of the rotating sleeve. Since the magnet has a strong magnetism, the device can be adsorbed on the surface of the workpiece to be welded to realize the grounding of the electric welding machine. In addition, the wiring barrel can drive the grounding wire to rotate around the first fixed shaft under the action of the first bearing, so when the electric welding machine drives the grounding wire to move, the grounding wire will not be entangled, which ensures the normal progress of the welding work and improves the welding efficiency. However, during use, the electric welder is directly connected to the ground. Sometimes when the grounding line is dragged, the grounding clamp may be detached from the grounding component and connected along the flame retardant pad, causing the electric welder to fail to fire. In addition, since the grounding line is pulled too long when the electric welder is dragged, the cable needs to be manually pulled back later, which brings certain troubles to the user.

[0004] To this end, we propose a lap grounding assembly for steel pipe welding. Utility Model Content

[0005] The utility model aims to provide a lap grounding assembly for steel pipe welding to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a kind of overlapping grounding assembly for steel pipe welding, comprising a grounding pile, an upper buckle and a spring wire, a overlapping ring is fixed on the top of the upper end of the grounding pile, and a plurality of upper buckles are sleeved on the outer wall of the overlapping ring, a lower buckle is connected below the connection between the upper buckle and the overlapping ring, and a positioning column is fixed to the middle part of the lower end of the upper buckle, a connecting pin with a fixing function is inserted into the connection between the upper buckle and the lower buckle, a chain is inserted into the top of the upper buckle, and a climbing buckle is fixed to the end of the chain away from the upper buckle, the other end of the climbing buckle is connected to the spring wire, and the input end of the spring wire is connected to the ground wire of the steel pipe electric welding machine.

[0007] Preferably, a column is fixed to the bottom of the lower end of the grounding pile, and an outer wall of the column is provided with an external thread.

[0008] Preferably, the grounding pile is fixed to the steel pipe welding workshop via a column, and the column is detachably connected to the floor of the steel pipe welding workshop via an external thread.

[0009] Preferably, an arc-shaped groove is formed on the lower side of the positioning column, and the size of the arc-shaped groove is consistent with the outer diameter of the loop.

[0010] Preferably, the positioning column is connected to the upper end of the loop, and the upper buckle and the lower buckle form a buckle connection with the loop.

[0011] Preferably, the connecting end of the spring wire is connected to a connecting head, and a buckle is fixed at the connection between the connecting head and the boarding buckle.

[0012] Compared with the prior art, the beneficial effect of the utility model is that when the grounding assembly for steel pipe welding is used, the entire grounding pile serves as the component of the steel pipe electric welder that directly contacts the ground. On multiple steel pipe welding stations, the column and the external thread at the bottom of the grounding pile are screwed into the steel pipe welding station through threaded connection, thereby meeting the user's subsequent needs for grounding connections of multiple steel pipe electric welders.

[0013] The upper buckle and the lower buckle form a buckle structure and are connected to the loop. To ensure that the chain and the grounding pile are always connected, a positioning column is directly installed on the upper buckle and the lower buckle. The positioning column locks the buckle structure and the loop to prevent the buckle structure from being pulled by external force, which causes the loop and the buckle structure to separate, making it possible for the welding gun head to be cut off. At the same time, a chain is used as a connecting piece, which is convenient for users to drag the electric welding machine at will according to their own needs, so as to meet the needs of workers to change welding positions at any time during steel pipe welding, which is convenient for users to use.

[0014] The spring wire serves as a connection wire with the grounding wire. The automatically retractable spring wire can meet the needs of workers to change welding positions at any time. It also reduces the need for workers to reel in the wire after welding, bringing convenience to users. The inner hole of the buckle and the climbing buckle are in interference fit to ensure that the climbing buckle and the buckle are locked and fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the grounding pile of the utility model;

[0017] Figure 3 For this utility model Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0018] In the figure: 1. grounding pile; 11. column; 12. external thread; 13. ring; 2. upper buckle; 21. positioning column; 22. lower buckle; 23. connecting pin; 3. chain; 4. climbing buckle; 5. spring wire; 51. connector; 52. buckle. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0020] See also Figure 1-3The utility model provides a technical solution: a grounding assembly for steel pipe welding, comprising a grounding pile 1, an upper buckle 2 and a spring wire 5, a buckle ring 13 is fixed to the top of the upper end of the grounding pile 1, and a plurality of upper buckles 2 are sleeved on the outer wall of the buckle ring 13, a lower buckle 22 is connected below the connection between the upper buckle 2 and the buckle ring 13, and a positioning column 21 is fixed to the middle of the lower end of the upper buckle 2, a connecting pin 23 with a fixing function is inserted into the connection between the upper buckle 2 and the lower buckle 22, a chain 3 is inserted into the top of the upper buckle 2, and a mounting buckle 4 is fixed at one end of the chain 3 away from the upper buckle 2, the other end of the mounting buckle 4 is connected to the spring wire 5, and the input end of the spring wire 5 is connected to the ground wire of the steel pipe electric welding machine, the grounding pile 1 A column 11 is fixed to the bottom of the lower end, and an external thread 12 is provided on the outer wall of the column 11. The grounding pile 1 is fixed to the steel pipe welding workshop through the column 11, and the column 11 is detachably connected to the ground of the steel pipe welding workshop through the external thread 12. The entire grounding pile 1 serves as a component of the steel pipe electric welding machine that directly contacts the ground. At multiple steel pipe welding stations, the user can open screw holes on the ground of the steel pipe welding station, and screw the column 11 and the external thread 12 at the bottom of the grounding pile 1 into the steel pipe welding station through threaded connection, thereby meeting the user's subsequent needs for grounding connections of multiple steel pipe electric welding machines. Example 2

[0021] See also Figure 1-3 The utility model provides a technical solution: a lap grounding component for steel pipe welding, the lower part of the positioning column 21 is provided with an arc-shaped groove, and the size of the arc-shaped groove is consistent with the outer diameter of the lap ring 13, the positioning column 21 is connected to the upper end of the lap ring 13, and the upper buckle 2 and the lower buckle 22 form a snap-on connection with the lap ring 13. Since a grounding protection system is provided in the steel pipe electric welding machine, only when the steel pipe electric welding machine is grounded at all times can the welding gun head be ensured to be off. The upper buckle 2 and the lower buckle 22 form a snap-on structure to be connected to the lap ring 13. In order to ensure that the chain 3 and the grounding pile 1 are always connected, a positioning column 21 is directly installed on the upper buckle 2 and the lower buckle 22. The positioning column 21 locks the snap-on structure with the lap ring 13 to prevent the snap-on structure from being pulled by external force. , resulting in the separation of the loop 13 and the buckle structure, making it possible for the welding gun head to be out of fire. At the same time, the chain 3 is used as a connecting piece, which is convenient for the user to drag the electric welding machine at will according to his own needs, so as to meet the needs of workers to change welding positions at any time during steel pipe welding, which is convenient for users to use. The connecting end of the spring wire 5 is connected with a connecting head 51, and a buckle 52 is fixed at the connection between the connecting head 51 and the climbing buckle 4. The spring wire 5 is used as a connecting wire with the grounding wire. The automatically retractable spring wire 5 can meet the needs of workers to change welding positions at any time, and also reduce the need for workers to reel in the wire after welding, which brings convenience to users. The inner hole of the buckle 52 and the climbing buckle 4 are interference fit connections to ensure that the climbing buckle 4 and the buckle 52 are locked and fixed.

[0022] Working principle: For this type of grounding assembly for steel pipe welding, first, a screw hole is opened on the ground of the steel pipe welding station, and the column 11 and the external thread 12 at the bottom of the grounding pile 1 are screwed into the steel pipe welding station through a threaded connection. At this time, the user connects the grounding wire of the electric welder to the spring wire 5, and at the same time connects the buckle 52 to the corresponding mounting buckle 4, and then the upper buckle 2 and the lower buckle 22 form a snap-on structure and connect it to the buckle 13. To ensure that the chain 3 and the grounding pile 1 are always connected, a positioning column 21 is directly installed on the upper buckle 2 and the lower buckle 22. The positioning column 21 locks the buckle structure and the buckle 13 to prevent the buckle structure from being pulled by external force, causing the buckle 13 to separate from the buckle structure. Finally, the user can connect multiple electric welders in parallel to the grounding pile 1 in turn.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grounding assembly for steel pipe welding, comprising a grounding pile (1), a buckle (2) and a spring wire (5), characterized in that: A loop (13) is fixed to the top of the upper end of the grounding pile (1), and a plurality of upper buckles (2) are sleeved on the outer wall of the loop (13), a lower buckle (22) is connected below the connection between the upper buckle (2) and the loop (13), and a positioning column (21) is fixed to the middle of the lower end of the upper buckle (2), a connecting pin (23) with a fixing function is inserted into the connection between the upper buckle (2) and the lower buckle (22), a chain (3) is inserted into the top of the upper buckle (2), and a climbing buckle (4) is fixed to one end of the chain (3) away from the upper buckle (2), and a spring wire (5) is connected to the other end of the climbing buckle (4), and the input end of the spring wire (5) is connected to the ground wire of the steel pipe electric welding machine.

2. The overlapping grounding assembly for steel pipe welding according to claim 1, characterized in that: A column (11) is fixed to the bottom of the lower end of the grounding pile (1), and an outer wall of the column (11) is provided with an external thread (12).

3. The overlapping grounding assembly for steel pipe welding according to claim 2, characterized in that: The grounding pile (1) is fixed to the steel pipe welding workshop via a column (11), and the column (11) is detachably connected to the floor of the steel pipe welding workshop via an external thread (12).

4. The overlapping grounding assembly for steel pipe welding according to claim 1, characterized in that: The lower portion of the positioning column (21) is provided with an arc-shaped groove, and the size of the arc-shaped groove is consistent with the outer diameter of the loop (13).

5. The overlapping grounding assembly for steel pipe welding according to claim 4, characterized in that: The positioning column (21) is connected to the upper end of the loop (13), and the upper buckle (2) and the lower buckle (22) form a buckle connection with the loop (13).

6. The overlapping grounding assembly for steel pipe welding according to claim 1, characterized in that: The connecting end of the spring wire (5) is connected to a connecting head (51), and a buckle (52) is fixed at the connection between the connecting head (51) and the boarding buckle (4).

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