Welding rotary grounding device

Abstract

The utility model discloses a welding rotary grounding device which comprises a gland, the inner surface of the gland is in threaded connection with a gland bolt, the outer surface of the gland bolt is in threaded connection with a fixed grounding seat, the inner surface of the fixed grounding seat is movably connected with a rotary grounding terminal, and the upper surface of the gland is in sliding connection with a balancing weight. The rotary grounding terminal is made of red copper, the fixed grounding seat is made of brass, the device is made of all copper, the conductive performance is good, the device is durable, the welding quality and the welding speed are guaranteed, meanwhile, the wiring terminal is connected through a bolt by arranging the gland and the fixed grounding seat, the firmness is high, the connection is reliable, and electric sparks are not prone to being generated. The device is simple in structure and convenient to disassemble and assemble, the device is suitable for grounding of various rotating workpieces during large-current welding, multiple devices can be installed in a combined mode through the arrangement of the connecting plate and the balancing weight, stability is improved, multiple welding machines can conduct welding at the same time, and the welding speed is greatly increased.

Description

Technical Field

[0001] The utility model relates to the technical field of welding rotary grounding, in particular to a welding rotary grounding device. Background Art

[0002] When the roller mill is performing online surfacing welding on the grinding disc and grinding roller, the welding ground wire cannot be directly connected to the workpiece because the workpiece is in a rotating state. Usually, a rotating grounding device is required. The rotor of the rotating grounding device rotates together with the workpiece, and the welding machine grounding wire is fixed on the fixed base of the grounding device. The current is conducted through the rotating contact surface.

[0003] However, when the existing rotating grounding device has a large welding current (exceeding 500A), the wire nose and copper wire connection at the grounding wire are often burned, affecting the welding quality and welding speed. After searching, it was found that the technical solution provided by the utility model with application number CN202022794623.4 also has the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a welding rotating grounding device. The device is made of all copper, has good conductivity, is durable, and ensures welding quality and welding speed. At the same time, by arranging a pressure cover and a fixed grounding seat, the wiring terminals are connected by bolts, which has high firmness, reliable connection, is not easy to generate electric sparks, and is convenient for disassembly and assembly, so that the device is suitable for grounding during high-current welding of various rotating workpieces. By arranging a connecting plate and a counterweight block, multiple devices can be installed together to increase stability, which can meet the needs of welding with multiple welding machines at the same time and greatly improve the welding speed.

[0005] To achieve the above-mentioned purpose, the utility model also provides a welding rotary grounding device, including: a pressure cover, the inner surface of the pressure cover is threadedly connected with a pressure cover bolt, the outer surface of the pressure cover bolt is threadedly connected with a fixed grounding seat, the inner surface of the fixed grounding seat is movably connected with a rotary grounding terminal, the upper surface of the pressure cover is slidably connected with a counterweight block, the material of the rotary grounding terminal is copper, the material of the fixed grounding seat is brass, the upper surface of the pressure cover is fixedly connected with a connecting plate, the inner surface of the connecting plate is threadedly connected with a connecting bolt, and the outer surface of the connecting bolt is threadedly connected with a nut. The device is manufactured by all-copper processing, has good electrical conductivity, is durable, and ensures welding quality and welding speed. At the same time, by arranging the pressure cover and the fixed grounding seat, the wiring terminals are connected by bolts, which has high firmness, reliable connection, is not easy to generate electric sparks, and is convenient for disassembly and assembly, so that the device is suitable for grounding of various rotating workpieces during high-current welding.

[0006] According to the welding rotary grounding device, the lower surface of the fixed grounding seat is movably connected to the pressure cover, and the outer surface of the rotary grounding terminal is movably connected to the pressure cover.

[0007] According to the welding rotating grounding device, the inner surface of the pressure cover is provided with a second threaded hole, and the inner surface of the second threaded hole extends to the inner surface of the fixed grounding seat.

[0008] According to the welding rotating grounding device, the number of the second threaded holes is two and they are distributed on the left and right, and the inner surface of the second threaded hole is threadedly connected to the gland bolt.

[0009] According to the welding rotary grounding device, the upper surface of the rotary grounding terminal is provided with a mounting hole, and the outer surface of the rotary grounding terminal is provided with a first threaded hole for mounting and fixing.

[0010] According to the welding rotating grounding device, the inner surface of the first threaded hole is connected to the mounting hole.

[0011] According to the welding rotating grounding device, a slide groove is provided on the upper surface of the pressure cover, and the inner surface of the slide groove is slidably connected to the counterweight block. By providing a connecting plate and a counterweight block, multiple devices can be installed together to increase stability, which can meet the needs of multiple welding machines for welding at the same time and greatly improve the welding speed.

[0012] According to the welding rotating grounding device, the counterweight blocks are multiple in number and distributed on the left and right, and can be slid in and installed according to needs, which is easy to operate.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 This is the overall structural diagram of a welding rotary grounding device of the utility model;

[0016] Figure 2 This is a partial structural diagram of a welding rotating grounding device of the utility model;

[0017] Figure 3 for Figure 2 A magnified view of the structure at center A;

[0018] Figure 4 The utility model is a schematic diagram of a welding rotary grounding device.

[0019] Legend:

[0020] 1. Gland; 2. Fixed grounding seat; 3. Rotating grounding terminal; 4. Mounting hole; 5. First threaded hole; 6. Connecting plate; 7. Nut; 8. Gland bolt; 9. Second threaded hole; 10. Slide groove; 11. Counterweight block; 12. Connecting bolt. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0022] Reference Figure 1-4 The utility model embodiment is a welding rotary grounding device, which includes: a gland 1, the inner surface of the gland 1 is threadedly connected with a gland bolt 8, the outer surface of the gland bolt 8 is threadedly connected with a fixed grounding seat 2, the inner surface of the gland 1 is provided with a second threaded hole 9, the number of the second threaded holes 9 is two and they are distributed on the left and right, the inner surface of the second threaded hole 9 is threadedly connected with the gland bolt 8, the inner surface of the second threaded hole 9 extends to the inner surface of the fixed grounding seat 2, the lower surface of the fixed grounding seat 2 is movably connected with the gland 1, the inner surface of the fixed grounding seat 2 is movably connected with a rotary grounding terminal 3, the upper surface of the rotary grounding terminal 3 is provided with a mounting hole 4, the rotary A first threaded hole 5 is provided on the outer surface of the transfer grounding terminal 3, and the inner surface of the first threaded hole 5 is connected to the mounting hole 4. The outer surface of the rotary grounding terminal 3 is movably connected to the pressure cover 1, and a counterweight block 11 is slidably connected to the upper surface of the pressure cover 1. The number of the counterweight blocks 11 is multiple and distributed on the left and right. A slide groove 10 is provided on the upper surface of the pressure cover 1, and the inner surface of the slide groove 10 is slidably connected to the counterweight block 11. The material of the rotary grounding terminal 3 is red copper, and the material of the fixed grounding seat 2 is brass. The upper surface of the pressure cover 1 is fixedly connected to a connecting plate 6, and the inner surface of the connecting plate 6 is threadedly connected to a connecting bolt 12, and the outer surface of the connecting bolt 12 is threadedly connected to a nut 7.

[0023] Working principle: The rotating grounding terminal 3 is columnar and made of red copper. The columnar body is provided with a mounting hole 4 and a first threaded hole 5 that are perpendicular to each other. When in use, the rotating grounding terminal 3 is inserted into a steel sleeve (bolt holes are provided at the corresponding positions), and is firmly fixed with bolts. The steel sleeve is welded to the center position of the rotating workpiece, and the fixed grounding seat 2 is inserted into the rotating grounding terminal 3. The gland bolt 8 is passed through the gland 1 and the second threaded hole 9 of the fixed grounding seat 2 to achieve connection. The fixed grounding seat 2 is made of brass to ensure the machining accuracy of the rotating contact surface between the base and the rotating grounding terminal 3, to ensure good contact, to ensure stable welding current, and to further improve the stability of the welding current. The two adjacent connecting plates 6 are installed and fixed by connecting bolts 12 to realize the assembly of multiple devices. At the same time, the slide grooves 10 of multiple glands 1 are aligned and penetrated, and the sliding counterweight 11 moves between the two glands 1 to increase the stability and connectivity of the device.

[0024] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A welding rotating grounding device, characterized in that: include: A gland (1), the inner surface of the gland (1) is threadedly connected to a gland bolt (8), the outer surface of the gland bolt (8) is threadedly connected to a fixed grounding seat (2), the inner surface of the fixed grounding seat (2) is movably connected to a rotating grounding terminal (3), the upper surface of the gland (1) is slidably connected to a counterweight (11), the material of the rotating grounding terminal (3) is copper, the material of the fixed grounding seat (2) is brass, the upper surface of the gland (1) is fixedly connected to a connecting plate (6), the inner surface of the connecting plate (6) is threadedly connected to a connecting bolt (12), and the outer surface of the connecting bolt (12) is threadedly connected to a nut (7).

2. A welding rotating grounding device according to claim 1, characterized in that: The lower surface of the fixed grounding seat (2) is movably connected to the pressure cover (1), and the outer surface of the rotating grounding terminal (3) is movably connected to the pressure cover (1).

3. A welding rotating grounding device according to claim 1, characterized in that: The inner surface of the gland (1) is provided with a second threaded hole (9), and the inner surface of the second threaded hole (9) extends to the inner surface of the fixed grounding seat (2).

4. A welding rotary grounding device according to claim 3, characterized in that: The number of the second threaded holes (9) is two and they are distributed on the left and right sides, and the inner surfaces of the second threaded holes (9) are threadedly connected to the gland bolts (8).

5. A welding rotating grounding device according to claim 1, characterized in that: The upper surface of the rotating grounding terminal (3) is provided with a mounting hole (4), and the outer surface of the rotating grounding terminal (3) is provided with a first threaded hole (5).

6. A welding rotary grounding device according to claim 5, characterized in that: The inner surface of the first threaded hole (5) is connected to the mounting hole (4).

7. A welding rotating grounding device according to claim 1, characterized in that: The upper surface of the gland (1) is provided with a slide groove (10), and the inner surface of the slide groove (10) is slidably connected to the counterweight (11).

8. A welding rotating grounding device according to claim 1, characterized in that: The counterweight blocks (11) are multiple in number and distributed left and right.

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