Electrode group for keeping welding screw in center

Abstract

The utility model relates to the technical field of screw processing, and discloses an electrode group for keeping a welding screw in the middle, which comprises a middle pipe, a connecting upper pipe fixed with the middle pipe and a connecting lower pipe fixed with the middle pipe, and the connecting lower pipe is trumpet-shaped. The middle pipe is in a hollow shape, and the length of the middle pipe is 23 mm. And the degree of finish of the upper connecting pipe is 1.6 microns. The electrode group with the welding screw kept in the center can ensure that the lower electrode hole and the part hole are centrally processed, so that the situation that the screw is not located in the center of the part hole and a battery shell is difficult to install is avoided, and the processing efficiency of equipment can be effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to screw processing technical field, concretely is a kind of electrode group that welding screw keeps in the middle. BACKGROUND

[0002] Beam bulkhead subassembly is the main safety piece connected to new energy automobile body and battery shell, is connected by nut by welding screw on part and battery shell, screw requires to be in the middle and cannot be deviated. In the process of welding screw, screw will appear deviation, and traditional welding positioning uses lower electrode inlay KCF cover to ensure that tooth will not be burnt during welding, but due to manual welding, it cannot be guaranteed that lower electrode hole and part hole are in the middle, and it will cause screw not to be in the center of part hole, causing battery shell installation difficult;In view of this, we provide a kind of electrode group that welding screw keeps in the middle. SUMMARY

[0003] The utility model aims at providing a kind of electrode group that welding screw keeps in the middle to solve the problems raised in the above background technology.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of electrode group that welding screw keeps in the middle, including intermediate tube, with the fixed connection upper pipe of intermediate tube and with the fixed connection lower pipe of intermediate tube, the connection lower pipe flared.

[0005] Optionally, the intermediate tube is hollow, and the length of the intermediate tube is 23mm.

[0006] Optionally, the finish of the connection upper pipe is 1.6 microns.

[0007] Compared with prior art, the utility model provides a kind of electrode group that welding screw keeps in the middle, with the following beneficial effects:

[0008] The electrode group that welding screw keeps in the middle can ensure that lower electrode hole and part hole are in the middle processing, avoid causing screw not to be in the center of part hole, causing battery shell installation difficult, can effectively improve the processing efficiency of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0009] Fig. 1 It is the structure schematic diagram of the utility model whole device;

[0010] Fig. 2 It is the utility model device cross section structure schematic diagram.

[0011] In the figure: 1, connection upper pipe;2, intermediate tube;3, connection lower pipe. DETAILED DESCRIPTION

[0012] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only some of the embodiments of the utility model, but not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the utility model.

[0013] As shown in Figs. 1-2 The utility model provides a kind of technical scheme: a kind of electrode group for keeping welding screw in the middle, including intermediate tube 2, with the fixed connection upper pipe 1 of intermediate tube 2 and with the fixed connection lower pipe 3 of intermediate tube 2, and the horn of connection lower pipe 3.

[0014] As one application of the utility model:

[0015] In the process of screw welding, a set of welding screw keeping electrode group in the middle is placed on the processing platform, and its connection upper pipe 1 is upward, another set of welding screw keeping electrode group in the middle is placed on the moving platform, and its connection lower pipe 3 is downward, in the process of screw welding, screw is placed on the connection upper pipe 1 of lower welding screw keeping electrode group in the middle first, and then the welding screw keeping electrode group in the middle above moves to the screw above and carries out welding treatment to screw.

[0016] The above has made detailed description to the utility model, but on the basis of the utility model, some modifications or improvements can be made, which is obvious to those skilled in the art. Therefore, the modification or improvement without departing from the spirit of the utility model is within the protection scope of the utility model.

Claims

1. A set of electrodes for welding screws, characterized in that: The intermediate tube (2), the connecting upper tube (1) fixed with the intermediate tube (2) and the connecting lower tube (3) fixed with the intermediate tube (2), the connecting lower tube (3) is trumpet-shaped.

2. A set of electrodes for welding screws to hold them centered, according to claim 1, characterized in that: The intermediate tube (2) is hollow, and the length of the intermediate tube (2) is 23 mm.

3. A set of electrodes for welding screws to hold the center of the electrode, according to claim 1, characterized in that: The finish of the connecting upper tube (1) is 1.6 microns.

Images