A current collecting device applied to a rolling bed welding ground

Abstract

The utility model discloses a current collection device applied to the welding ground of rolling bed, including current collection spare and the carbon brush of at least two number, support plate and fixed assembly, current collection spare sets up on the gyro wheel axle, the carbon brush sets up on support plate, and fixed assembly is used for to support fixed of support plate, in the utility model, through the change of the flowing direction of ground wire current, reduce the influence of current to bearing ball, through the setting of fixed assembly, make carbon brush wear after can contact with current collection spare.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and in particular to a current collection device for grounding in roller bed welding. Background Technology

[0002] Due to the characteristics of the car body manufacturing process, the welding workshop has multiple manual CO2 welding stations. The current from the CO2 welding machine typically originates from the positive (or negative) terminal of the power supply, passes through the welding torch, welding wire, arc, and workpiece, and finally returns to the negative (or positive) terminal of the power supply via a grounding cable, forming a closed loop. In the current loop of the CO2 welding machine on the adjustment line, the grounding cable is usually connected to the roller bed cover plate, then through the rollers of the roller bed and the balls within the roller bearings, forming a complete closed current loop. In this closed-loop current loop, the grounding current is connected to the ground through the bearing balls. Because the contact between the balls and the bearing is point-to-point, when a large current flows, arcing can easily occur between the balls and the bearing, causing arc erosion between the balls and the ball track, resulting in pits, balling (balling from molten iron), or the balls being directly welded to the ball track. This causes the roller bed at the manual welding station to slip or jam. Utility Model Content

[0003] The purpose of this invention is to solve the above-mentioned technical problems and provide a current collection device for grounding in roller bed welding.

[0004] The technical solution of this utility model is as follows: a current collection device for grounding of roller welding includes a current collection component, at least two carbon brushes, a support plate, and a fixing component. The current collection component is disposed on the roller shaft, the carbon brushes are disposed on the support plate, and the fixing component is used to support and fix the support plate.

[0005] Preferably, the fixing component includes a base and a connecting rod, the connecting rod connecting the support plate and the base.

[0006] Preferably, the base has several through holes.

[0007] Preferably, the fixing assembly further includes a guide rod and a spring, the guide rod being disposed on the connecting rod, the support plate being able to slide on the guide rod, and the spring being sleeved on the guide rod.

[0008] Preferably, the current collector is composed of two semi-cylinders, each semi-cylinder having a plurality of annular grooves; it also includes a locking device for locking the two semi-cylinders together.

[0009] Preferably, one of the semi-cylinders has at least two countersunk holes, and the other semi-cylinder has at least two threaded holes; the locking device includes at least two bolts, one end of which passes through the countersunk hole and is screwed into the threaded hole.

[0010] The beneficial effects of this utility model are: by changing the direction of the ground current flow, the influence of the current on the bearing ball is reduced, and by setting the fixing component, the carbon brush can contact the current collector after wear. Attached Figure Description

[0011] Figure 1 This is a perspective view of the overall structure of a preferred embodiment of the present invention;

[0012] Figure 2 This is a partial three-dimensional view of a preferred embodiment of the present utility model;

[0013] Figure 3 This is a schematic diagram of a semi-cylindrical shape in a preferred embodiment of the present invention;

[0014] Figure 4 This is a schematic diagram showing the existing grounding current connected to the ground through the bearing ball.

[0015] Reference numerals: current collector 10, semi-cylindrical part 101, annular groove 1011, carbon brush 2, support plate 3, base 4, through hole 401, connecting rod 5, guide rod 6, spring 7. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Reference Figures 1 to 4 A current collector for grounding in roller welding includes a current collector 10, at least two carbon brushes 2, a support plate 3, and a fixing assembly. The current collector 10 is mounted on the roller shaft, the carbon brushes 2 are mounted on the support plate 3, and the fixing assembly supports and fixes the support plate 3. In this invention, the fixing assembly supports the support plate 3, which in turn supports the carbon brushes 2. The current collector 10 is mounted on the roller shaft and connected to the welding machine ground wire via the carbon brushes 2, preventing current from flowing through the bearing balls to the ground. By changing the direction of the ground current flow, the impact of the current on the bearing balls is reduced. Specifically, the current collector 10 is a copper current collector.

[0018] As a preferred embodiment of this utility model, it may also have the following additional technical features:

[0019] In this embodiment, the fixing component includes a base 4 and a connecting rod 5. The connecting rod 5 connects the support plate 3 and the base 4. The base 4 is fixed to the ground, and the connecting rod 5 supports the support plate 3, thereby supporting the carbon brush 2. Specifically, the base 4 is L-shaped.

[0020] In this embodiment, the base 4 is provided with a plurality of through holes 401. Bolts pass through the through holes 401 to connect to the ground, thereby fixing the base 4.

[0021] In this embodiment, the fixing assembly further includes a guide rod 6 and a spring 7. The guide rod 6 is disposed on the connecting rod 5, and the support plate 3 can slide on the guide rod 6. The spring 7 is sleeved on the guide rod 6. Specifically, the guide rod 6 is I-shaped. After the carbon brush 2 contacts the current collector 10, the spring 7 is in a compressed state. During the wear and tear of the carbon brush 2, the spring 7 exerts a reaction force on the support plate 3, ensuring that the carbon brush 2 remains in contact with the current collector 10.

[0022] In this embodiment, the current collector 10 is composed of two semi-cylindrical shapes 101, and the semi-cylindrical shapes 101 are provided with a plurality of annular grooves 1011; it also includes a locking device for locking the two semi-cylindrical shapes 101 together, which facilitates the installation and disassembly of the current collector 10, and the carbon brush 2 cooperates with the annular grooves 1011.

[0023] In this embodiment, one of the semi-cylindrical shapes 101 is provided with at least two countersunk holes, and the other semi-cylindrical shape 101 is provided with at least two threaded holes; the locking device includes at least two bolts, one end of which passes through the countersunk hole and is screwed into the threaded hole. By installing and removing the bolts, the two semi-cylindrical shapes 101 can be installed on the roller shaft or removed from the roller shaft.

[0024] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A current collector for grounding in roller lathe welding, characterized in that, It includes a current collector (10), at least two carbon brushes (2), a support plate (3), and a fixing assembly. The current collector (10) is disposed on the roller shaft, the carbon brushes (2) are disposed on the support plate (3), and the fixing assembly is used to support and fix the support plate (3).

2. The current collector for grounding in roller bed welding according to claim 1, characterized in that: The fixing component includes a base (4) and a connecting rod (5), the connecting rod (5) connecting the support plate (3) and the base (4).

3. A current collector for grounding in roller bed welding according to claim 2, characterized in that: The base (4) has several through holes (401).

4. A current collector for grounding in roller bed welding according to claim 2, characterized in that: The fixing assembly also includes a guide rod (6) and a spring (7). The guide rod (6) is disposed on the connecting rod (5), the support plate (3) can slide on the guide rod (6), and the spring (7) is sleeved on the guide rod (6).

5. A current collector for grounding in roller bed welding according to claim 1, characterized in that: The current collector (10) is composed of two semi-cylindrical shapes (101), each semi-cylindrical shape (101) having a plurality of annular grooves (1011); it also includes a locking device for locking the two semi-cylindrical shapes (101) together.

6. A current collector for grounding in roller bed welding according to claim 5, characterized in that: One of the semi-cylindrical shapes (101) has at least two countersunk holes, and the other semi-cylindrical shape (101) has at least two threaded holes; the locking device includes at least two bolts, one end of which passes through the countersunk hole and is screwed into the threaded hole.

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