Welding device for large-current conductor

Abstract

A welding device of a large-current conductor relates to the field of welding devices and comprises a workbench, a high-frequency welding machine and a supporting structure, the high-frequency welding machine is located on one side of the workbench, the supporting structure is arranged on the top face of the workbench, the high-frequency welding machine is provided with a welding pipe, an induction coil is formed at the front end of the welding pipe, and the induction coil is connected with the high-frequency welding machine. The left part and the right part of the welding pipe are respectively bent to form a left S-shaped bent part and a right S-shaped bent part, the circular-tube-shaped contact is positioned on the working table, one end of the L-shaped copper pipe is propped against a top plate of the circular-tube-shaped contact, the other end of the L-shaped copper pipe is positioned on the supporting structure, the upper part of the circular-tube-shaped contact is sleeved in the induction coil, and the lower part of the circular-tube-shaped contact is positioned on the supporting structure. And the left S-shaped bending part and the right S-shaped bending part are positioned above the induction coil. According to the utility model, the welding flux at the welding position can be quickly melted and well flows, so that the welding position can be fully welded, the phenomenon of air holes after welding is avoided, and the welding quality of the high-current conductor is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of welding devices, specifically a kind of welding device of large-current conductor. BACKGROUND

[0002] Large-current conductor plays the role of gathering and distributing current in switch cabinet, ensures that current can be efficiently transmitted to each electrical equipment, and large-current conductor plays a vital role in power system, which is related to the efficiency and economy of power transmission, and directly affects the safety and stability of the entire power grid. The conductor form commonly used in China includes rectangle, slot and pipe, etc. Single-piece rectangular conductor is suitable for loop with working current ≤2000A, and multi-piece rectangular conductor is suitable for loop with working current ≤4000A. When working current exceeds 4000A, slot or round pipe shaped profiled conductor should be selected to facilitate the distribution of alternating current.

[0003] The existing round pipe shaped large-current conductor includes round pipe shaped contact and L-shaped copper pipe. The top of the round pipe shaped contact is provided with a top plate, the top of the top plate is provided with a boss, the boss is located in one end of the L-shaped copper pipe, one end of the L-shaped copper pipe is connected with the top plate by welding, and the outer periphery of the boss is pre-wrapped with solder when welding one end of the L-shaped copper pipe with the top plate. Then the top plate and one end of the L-shaped copper pipe are welded by the pipe of the high-frequency welding machine. However, the welding part of the pipe of the existing high-frequency welding machine is in a winding type, the upper part of the round pipe shaped contact is sleeved on the welding part of the pipe, and the existing pipe can only heat the upper part of the round pipe shaped contact during welding. The welding part cannot get enough heat in the first time, which makes the flowability of the solder after melting not enough, and the welding is often not full and has pores after welding, thereby affecting the welding quality. SUMMARY

[0004] The utility model provides a kind of welding device of large-current conductor, its main purpose is to overcome the flowability of the solder after melting not enough when the existing high-frequency welding machine is welded to large-current conductor, and the welding is often not full and has pores after welding, thereby affecting the welding quality.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] The utility model provides a kind of welding device of large current conductor, including workbench, high-frequency welding machine and support structure, the high-frequency welding machine is located one side of workbench, the support structure is located the top surface of workbench, the high-frequency welding machine has welding pipe, the front end of the welding pipe is formed with induction coil, the left part and right part of the welding pipe are bent and form left S-shaped bending part and right S-shaped bending part respectively, round tubular contact is located on workbench, one end of L-shaped copper pipe is in abutment with the top plate of round tubular contact, the other end of the L-shaped copper pipe is located on support structure, the upper portion of the round tubular contact is in induction coil, and the left S-shaped bending part and right S-shaped bending part are located above induction coil.

[0007] Further, the support structure is movably arranged on the top surface of the workbench.

[0008] Further, the support structure includes a support column and a support portion, the support portion is connected to the top of the support column, the top surface of the support portion is provided with a placing groove matched with the other end of the L-shaped copper pipe, and the support column is movably arranged on the top surface of the workbench.

[0009] Further, the bottom of the support column is provided with a support table, the upper portion of the support column is provided with a threaded segment, the bottom surface of the support portion is provided with a connecting portion, the bottom of the connecting portion is provided with a threaded hole, and the threaded segment is threadedly connected with the threaded hole.

[0010] Further, the top surface of the workbench is provided with a plurality of rows of first locking holes arranged front and back, the support table is provided with two second locking holes arranged left and right, each second locking hole corresponds to a first locking hole, and the second locking hole and the first locking hole are used for passing through a bolt to connect the support table and the workbench.

[0011] Further, the top surface of the workbench is provided with a plurality of heat dissipation grooves arranged front and back along the length direction.

[0012] Further, the cross section of the heat dissipation groove is in the shape of '┻'.

[0013] As can be seen from the above description of the utility model, compared with the prior art, the utility model has the following advantages: the induction coil of the welding pipe is sleeved on the upper portion of the round tubular contact, the upper portion of the round tubular contact, the top plate and one end of the L-shaped copper pipe are located between the left S-shaped bending part and the right S-shaped bending part of the welding pipe, so that the upper portion of the round tubular contact and the top plate and the welding part of the L-shaped copper pipe can obtain high enough heat, the soldering material at the welding part can be quickly melted and flow well, to ensure that the welding part can be fully welded, and there is no phenomenon of pores after welding, to ensure the welding quality of the large current conductor. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model.

[0015] Figure 2 The use state diagram of the utility model. DETAILED DESCRIPTION

[0016] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0017] Referring to Figure 1 and Figure 2 A welding device for large current conductor, comprising a workbench 1, a high-frequency welding machine 2 and a support structure 3, the high-frequency welding machine 2 is located on one side of the workbench 1, and the support structure 3 is arranged on the top surface of the workbench 1. The high-frequency welding machine 2 has a welding pipe 4, the front end of the welding pipe 4 is formed with an induction coil 41, the left part and the right part of the welding pipe 4 are respectively bent to form a left S-shaped bending part 42 and a right S-shaped bending part 43, a circular tube-shaped contact 5 is located on the workbench 1, one end of an L-shaped copper pipe 7 abuts against a top plate 6 of the circular tube-shaped contact 5, the other end of the L-shaped copper pipe 7 is located on the support structure 3, the upper part of the circular tube-shaped contact 5 is sleeved in the induction coil 41, and the left S-shaped bending part 42 and the right S-shaped bending part 43 are located above the induction coil 41.

[0018] Referring to Figure 1 and Figure 2 The support structure 3 is movably arranged on the top surface of the workbench 1, the support structure 3 comprises a support column 31 and a support part 32, the support part 32 is connected to the top of the support column 31, the top surface of the support part 32 is provided with a placing groove 33 matched with the other end of the L-shaped copper pipe 7, and the support column 31 is movably arranged on the top surface of the workbench 1.

[0019] Referring to Figure 1 and Figure 2The bottom of the support column 31 is provided with a support table 34, and the upper portion of the support column 31 is provided with a threaded section 35. The bottom surface of the support part 32 is provided with a connecting part 36, and the bottom of the connecting part 36 is provided with a threaded hole (not marked in the figure). The threaded section 35 is threadedly connected with the threaded hole (not marked in the figure). The connecting part 36 is threadedly connected with the support column 31, so that the support part 32 and the support column 31 can be disassembled, and the support part 32 can be replaced according to the size of the L-shaped copper pipe 7 of the large-current conductor. The top surface of the workbench 1 is provided with a plurality of rows of first locking holes 11 arranged front and back. Each row of first locking holes 11 is formed by a plurality of first locking holes 1 arranged left and right. The support table 34 is provided with two second locking holes 37 arranged left and right. Each second locking hole 37 corresponds to a first locking hole 11. The second locking hole 37 and the first locking hole 11 are provided for a bolt to pass through to connect the support table 34 and the workbench 1. The support structure 3 can select appropriate first locking holes 11 and second locking holes 37 to be locked according to the length of the L-shaped copper pipe 7 of the large-current conductor.

[0020] With reference to Figure 1 and Figure 2 The top surface of the workbench 1 is provided with a plurality of heat dissipation grooves 12 arranged front and back along the length direction. The cross section of the heat dissipation groove 12 is in the shape of “┻”. When welding, the heat in the circular pipe-shaped contact 5 of the large-current conductor can be dissipated into the heat dissipation groove 12 and then dissipated to the outside from the heat dissipation groove 12.

[0021] With reference to Figure 1 and Figure 2 The design principle of the utility model is as follows: the induction coil 41 of the welded pipe 4 is sleeved on the upper portion of the circular pipe-shaped contact 5. The upper portion of the circular pipe-shaped contact 5, the top plate 6 and one end of the L-shaped copper pipe 7 are located between the left S-shaped bending part 42 and the right S-shaped bending part 43 of the welded pipe 4. In this way, the upper portion of the circular pipe-shaped contact 5 and the welding position of the top plate 6 and the L-shaped copper pipe 7 can all obtain high enough heat. The solder at the welding position can be quickly melted and well flowed, so that the welding position can be fully welded, and the phenomenon of pores after welding can be avoided.

[0022] The above is only a specific implementation manner of the utility model, but the design concept of the utility model is not limited thereto. Any non-essential change of the utility model by using the concept shall belong to the act of infringing the protection range of the utility model.

Claims

1. A welding apparatus for large current conductors, characterized by: The utility model provides a high frequency welding machine support structure, including workbench, high frequency welding machine and support structure, high frequency welding machine is located one side of workbench, support structure is located workbench top surface, high frequency welding machine has weld pipe, the front end of weld pipe forms inductive ring, the left part and right part of weld pipe are respectively bent and form left S-shaped bending part and right S-shaped bending part, round pipe contact is located workbench, one end of L-shaped copper pipe is in contact with the top plate of round pipe contact, the other end of L-shaped copper pipe is located support structure, the upper portion of round pipe contact is in the inductive ring, left S-shaped bending part and right S-shaped bending part are located inductive ring top.

2. A device for welding a high current conductor as defined in claim 1, characterized in that: The support structure is movably arranged on the top surface of the workbench.

3. A device for welding a high current conductor as defined in claim 2, characterized in that: The support structure includes a support column and a support part, the support part is connected to the top of the support column, the top surface of the support part is provided with a placing groove matched with the other end of the L-shaped copper pipe, and the support column is movably arranged on the top surface of the workbench.

4. A device for welding a high current conductor as defined in claim 3, characterized in that: The bottom of the support column is provided with a support table, the upper part of the support column is provided with a threaded segment, the bottom surface of the support part is provided with a connecting part, the bottom of the connecting part is provided with a threaded hole, and the threaded segment is threadedly connected with the threaded hole.

5. A device for welding a high current conductor as defined in claim 4, characterized in that: The top surface of the workbench is provided with a plurality of rows of first locking holes arranged in front and back, the support table is provided with two second locking holes arranged in left and right, each second locking hole corresponds to a first locking hole, and the second locking hole and the first locking hole are used for passing through a bolt to connect the support table and the workbench.

6. A device for welding a high current conductor as defined in claim 1, wherein: The top surface of the workbench is provided with a plurality of heat dissipation grooves arranged in front and back along the length direction.

7. A device for welding a high current conductor as defined in claim 6, characterized in that: The cross section of the heat dissipation groove is in the shape of "┻".

Images