Auxiliary device for welding F-shaped grounding wire by rotating steel pipe

Abstract

The utility model relates to an auxiliary device for welding an F-shaped grounding wire by rotating a steel pipe. The auxiliary device comprises a steel pipe clamp, a sleeve and a roller, the roller is rotationally connected to the sleeve, the sleeve is provided with a fixed winding cylinder, and the fixed winding cylinder is electrically connected with a clamped steel pipe through the steel pipe clamp and the sleeve; the roller is provided with a winding area right opposite to the fixed winding reel, a conductive wire is wound around the winding area, and the conductive wire is electrically connected with a grounding wire through the roller. The grounding wire auxiliary device is light in weight, simple in structure, easy to operate, free of winding of a grounding cable, free of continuous material consumption and good in grounding effect, the winding problem of the grounding cable is effectively solved through winding of a conductor wire in the auxiliary device according to the geometric principle, and the grounding effect is improved. The problem that carbon rods need to be consumed continuously in an original operation method is solved, the grounding operation efficiency of welding operation of the large steel pipe circular seam and the inner and outer ring plates is better, and the input cost is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of marine engineering steel pipe welding, and more specifically to an F-shaped grounding wire auxiliary device for rotating steel pipe welding. Background Art

[0002] The construction of marine engineering equipment involves extensive welding of butt-jointed steel pipes or the welding of inner and outer ring plates. This butt-jointing process is known as circumferential seam welding, and the most common welding method involves rotating the steel pipe at a constant speed while the welding gun remains stationary. Alternatively, the inner and outer ring plates can be welded by rotating the steel pipe while the welding arm remains stationary. During welding, the steel pipe must be grounded. The most commonly used clamp-type grounding wire device is prone to cable entanglement, clamp detachment, current instability, and sparking during pipe rotation, all of which can affect welding quality.

[0003] There are currently two new grounding methods: one is to use a lever principle and place an adaptive grounding device at the bottom of the steel pipe. For example, the Chinese patent (CN209062406U) discloses an adaptive grounding wire device for circumferential welding of steel pipes. The device uses a lever principle to enable the conductor to be in constant contact when the steel pipe rotates, and adjusts the length and height of the lever through the fulcrum and the through-hole on the lever, effectively ensuring uninterrupted contact between the lever and the conductor. The other is a method described in Chinese patent CN202022860597.0 in which a clamping assembly remains in a fixed position relative to the ground, and is clamped on a steel pipe and grounded through a telescopic assembly, a contact assembly, and a conductive assembly. Although these two methods solve the problems of cable winding and alternative clamps, the core problem is that a large amount of carbon rods need to be continuously consumed. This is not conducive to the cost investment of the project. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an F-shaped grounding wire auxiliary device for rotating steel pipe welding in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A rotating steel pipe welding F-shaped grounding wire auxiliary device is constructed, which includes a steel pipe clamp for clamping the edge of the steel pipe, a sleeve and a roller detachably connected to the grounding wire; the sleeve is connected to the steel pipe clamp; the roller is rotatably connected to the sleeve, and the sleeve is provided with a fixed winding drum arranged side by side with the roller, and the fixed winding drum is electrically connected to the clamped steel pipe through the steel pipe clamp and the sleeve; the roller is provided with a winding area directly opposite to the fixed winding drum, and a conductive wire is wound on the winding area, and the conductive wire is electrically connected to the grounding wire through the roller.

[0007] The utility model discloses an F-shaped grounding wire auxiliary device for rotating steel pipe welding, wherein the distance between the sleeve and the steel pipe clamp is adjustable.

[0008] The utility model discloses an F-shaped grounding wire auxiliary device for rotating steel pipe welding, wherein the steel pipe clamp includes a fixing rod, the sleeve is sleeved on the fixing rod, and the sleeve is threadedly connected with a Y-shaped locking piece that presses against the fixing rod.

[0009] The utility model discloses an F-shaped grounding wire auxiliary device for rotating steel pipe welding, wherein the steel pipe clamp further comprises a U-shaped clamp for clamping the edge of the steel pipe, and the U-shaped clamp is provided with a locking bolt for tightening the steel pipe.

[0010] In the F-shaped grounding wire auxiliary device for rotating steel pipe welding described in the utility model, the slotting direction of the U-shaped card is perpendicular to the length direction of the fixing rod.

[0011] The utility model describes an F-shaped grounding wire auxiliary device for rotating steel pipe welding, wherein a connecting shaft for rotating the connecting roller is provided on the sleeve, the connecting shaft is vertically distributed with the sleeve, and a baffle is provided at the end of the connecting shaft to prevent the roller from falling out.

[0012] The utility model provides an F-shaped grounding wire auxiliary device for rotating steel pipe welding, wherein the connecting shaft and the Y-shaped locking member are respectively distributed on both sides of the fixed winding drum.

[0013] The utility model describes an F-shaped grounding wire auxiliary device for rotating steel pipe welding, wherein a first roller baffle, a second roller baffle and a third roller baffle are sequentially arranged on the outer surface of the roller along the length direction, and a power connection fastener that can be detachably connected to the grounding wire is provided on the roller, the power connection fastener is located between the first roller baffle and the second roller baffle, and the winding area is located between the second roller baffle and the third roller baffle.

[0014] The utility model discloses an F-shaped grounding wire auxiliary device for rotating steel pipe welding, wherein a welding terminal connected to the conductive wire is provided in the winding area, and the welding terminal is electrically connected to the electrical fastener through the roller.

[0015] The utility model discloses an F-shaped grounding wire auxiliary device for rotating steel pipe welding, wherein a wire winding handle is eccentrically provided on the first roller baffle.

[0016] The beneficial effects of the present invention are: when the device of the present application is used, the steel pipe clamp is fixed to the edge of the steel pipe, and the steel pipe clamp and the roller are connected by a sleeve. The roller is placed at the axis of the steel pipe and connected to the grounding wire. During the welding operation, when the steel pipe rotates, the roller and the grounding wire are stationary relative to the ground, while the steel pipe clamp and the sleeve rotate with the steel pipe. The conductive wire on the roller is gradually wound around the fixed winding drum, and the electrical connection between the grounding wire and the steel pipe is completed by relying on the roller, the conductive wire, the fixed winding drum, the sleeve and the steel pipe clamp; the present application provides a grounding wire auxiliary device with light weight, simple structure and easy operation, no entanglement of the grounding cable, no continuous consumption of consumables and good grounding effect. Through geometric principles, the winding problem of the grounding cable is effectively solved by winding the conductive wire in the auxiliary device, eliminating the problem of continuous consumption of carbon rods in the original operation method, so that the grounding operation efficiency of the large steel pipe annular seam and inner and outer ring plate welding operations is better and the investment cost is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below with reference to the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work:

[0018] Figure 1 This is a schematic diagram of the overall structure of the F-shaped grounding wire auxiliary device for rotating steel pipe welding according to a preferred embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the steel pipe clamp structure of the F-shaped grounding wire auxiliary device for rotating steel pipe welding in a preferred embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the sleeve structure of the F-shaped grounding wire auxiliary device for rotating steel pipe welding according to a preferred embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the drum structure of the F-shaped grounding wire auxiliary device for rotating steel pipe welding in a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will be described clearly and completely in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] The F-shaped grounding wire auxiliary device for rotating steel pipe welding of the preferred embodiment of the present invention is as follows Figure 1 See also Figure 2-Figure 4 , including a steel pipe clamp for clamping the edge of the steel pipe, a sleeve 4 and a roller 11 detachably connected to the grounding wire 17; the sleeve 4 is connected to the steel pipe clamp; the roller 11 is rotatably connected to the sleeve 4, and the sleeve 4 is provided with a fixed winding drum 7 arranged side by side with the roller 11 (anti-slip baffles can be provided at both ends to prevent the wire from slipping out, marked as 6 and 8 in the figure), and the fixed winding drum 7 is electrically connected to the clamped steel pipe 18 through the steel pipe clamp and the sleeve 4; the roller 11 is provided with a winding area directly opposite to the fixed winding drum 7, and a conductive wire 15 is wound on the winding area, and the conductive wire 15 is electrically connected to the grounding wire 17 through the roller 11;

[0024] When using the device of the present application, the steel pipe clamp is fixed to the edge of the steel pipe 18, and the steel pipe clamp and the roller 11 are connected through the sleeve 4. The roller 11 is placed at the axis of the steel pipe 18 and connected to the grounding wire 17 (which is fixed). During the welding operation, when the steel pipe 18 rotates, the roller 11 and the grounding wire 17 remain stationary relative to the ground, while the steel pipe clamp and the sleeve 4 rotate with the steel pipe 18. The conductive wire 15 on the roller 11 is gradually wound around the fixed winding drum 7. The electrical connection between the grounding wire 17 and the steel pipe 18 is completed by the roller 11, the conductive wire 15, the fixed winding drum 7, the sleeve 4 and the steel pipe clamp.

[0025] The present application provides a grounding wire auxiliary device which is light in weight, simple in structure and easy to operate, prevents the grounding cable from getting tangled, does not require continuous consumption of consumables and has an excellent grounding effect. Through geometric principles, the tangling problem of the grounding cable is effectively solved by winding the conductive wire in the auxiliary device, eliminating the problem of the continuous consumption of carbon rods in the original operation method, making the grounding operation efficiency of the large steel pipe annular seam and inner and outer ring plate welding operations better and the investment cost lower.

[0026] Preferably, the distance between the sleeve 4 and the steel pipe clamp is adjustable. The purpose of adopting this method is to better cope with the processing of steel pipes of different diameters. The distance adjustment structure can adopt the following pipe-in-pipe structure or other existing structural forms. There is no limitation on it, and it all falls within the protection scope of this application.

[0027] Preferably, the structure of the pipe sleeve is as follows: the steel pipe clamp includes a fixed rod 3, a sleeve 4 is sleeved on the fixed rod 3, and the sleeve 4 is threadedly connected with a Y-shaped locking piece 5 that presses against the fixed rod 3; the advantage of adopting this distance adjustment structure is that the structure will be relatively simple, easy to operate and low in cost.

[0028] Preferably, the steel pipe clamp and the steel pipe can be assembled in a clamping manner, for example, a U-shaped clamp 2 can be used to clamp the edge of the steel pipe, and the U-shaped clamp 2 is provided with a locking bolt 1 that is pressed against the steel pipe for fixing; of course, other existing fixing structural forms can also be used, which are not limited and all fall within the scope of protection of this application.

[0029] Preferably, the slotting direction of the U-shaped card 2 is perpendicular to the length direction of the fixing rod 3, resulting in a simple structure and low cost.

[0030] Preferably, a connecting shaft for rotating the connecting roller 11 is provided on the sleeve 4, the connecting shaft is perpendicular to the sleeve 4, and a baffle 9 is provided at the end of the connecting shaft to prevent the roller 11 from falling out, and the connecting shaft and the Y-shaped locking member 5 are respectively located on both sides of the fixed winding drum 7; Figure 1 As shown, the sleeve 4, the roller 11 and the fixed winding drum 7 are arranged in an F shape, which has a simple structure, is easy to process and has low cost.

[0031] Preferably, the outer surface of the drum 11 is provided with a first drum baffle 12, a second drum baffle 13 and a third drum baffle 14 in sequence along the length direction, and the drum 11 is provided with a detachable power fastener 19 for connecting to the ground wire, the power fastener 19 is located between the first drum baffle 12 and the second drum baffle 13, and the winding area is located between the second drum baffle 13 and the third drum baffle 14; the areas are clearly separated, which is convenient for installation operations, and the three baffles can also provide a certain degree of protection to reduce the influence of external interference.

[0032] Preferably, a welding terminal 16 for connecting the conductive wire is provided in the winding area, and the welding terminal 16 is electrically connected to the power fastener 19 through the roller 11; a winding handle 10 is eccentrically provided on the first roller baffle 12; when installing the conductive wire 15, it is necessary to release the connection between the power fastener 19 and the grounding wire 17. At this time, the roller 11 can rotate freely, weld one end of the conductive wire 15 to the welding terminal 16, and then manually crank the winding handle 10 to wind the conductive wire 15 around the winding area. After the winding is completed, the power fastener 19 and the grounding wire 17 can be reconnected; it is easy to operate, has a reasonable and compact structure, and is low in cost.

[0033] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this utility model.

Claims

1. An F-shaped grounding wire auxiliary device for rotating steel pipe welding, characterized in that: It includes a steel pipe clamp for clamping the edge of the steel pipe, a sleeve and a roller detachably connected to the grounding wire; the sleeve is connected to the steel pipe clamp; the roller is rotatably connected to the sleeve, and the sleeve is provided with a fixed winding drum arranged side by side with the roller, and the fixed winding drum is electrically connected to the clamped steel pipe through the steel pipe clamp and the sleeve; the roller is provided with a winding area directly opposite to the fixed winding drum, and a conductive wire is wound on the winding area, and the conductive wire is electrically connected to the grounding wire through the roller.

2. The F-shaped grounding wire auxiliary device for rotating steel pipe welding according to claim 1 is characterized in that: The distance between the sleeve and the steel pipe clamp is adjustable.

3. The F-shaped grounding wire auxiliary device for rotating steel pipe welding according to claim 2, characterized in that: The steel pipe clamp includes a fixing rod, the sleeve is sleeved on the fixing rod, and the sleeve is threadedly connected with a Y-shaped locking piece that presses against the fixing rod.

4. The F-shaped grounding wire auxiliary device for rotating steel pipe welding according to claim 3 is characterized in that: The steel pipe clamp also includes a U-shaped clamp for clamping the edge of the steel pipe, and the U-shaped clamp is provided with a locking bolt that is pressed against the steel pipe and fixed.

5. The F-shaped grounding wire auxiliary device for rotating steel pipe welding according to claim 4 is characterized in that: The slotting direction of the U-shaped card is perpendicular to the length direction of the fixing rod.

6. The F-shaped grounding wire auxiliary device for rotating steel pipe welding according to claim 3, characterized in that: The sleeve is provided with a connecting shaft for rotatably connecting the roller. The connecting shaft is vertically distributed with the sleeve, and the end of the connecting shaft is provided with a baffle to prevent the roller from falling out.

7. The F-shaped grounding wire auxiliary device for rotating steel pipe welding according to claim 6, characterized in that: The connecting shaft and the Y-shaped locking member are respectively distributed on both sides of the fixed winding drum.

8. The F-shaped grounding wire auxiliary device for rotating steel pipe welding according to any one of claims 1 to 7, characterized in that: The first roller baffle, the second roller baffle and the third roller baffle are sequentially arranged on the outer surface of the roller along the length direction, and the roller is provided with a power connection fastener that is detachably connected to the grounding wire. The power connection fastener is located between the first roller baffle and the second roller baffle, and the winding area is located between the second roller baffle and the third roller baffle.

9. The F-shaped grounding wire auxiliary device for rotating steel pipe welding according to claim 8, characterized in that: A welding terminal connected to the conductive wire is provided in the winding area, and the welding terminal is electrically connected to the electrical fastener through the roller.

10. The F-shaped grounding wire auxiliary device for rotating steel pipe welding according to claim 8, characterized in that: A wire winding handle is eccentrically arranged on the first roller baffle.

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