CN204430625U - A tab spot welding positioning fixture - Google Patents

Abstract

The utility model provides a tab spot welding positioning fixture, which comprises a positioning table, a pole piece positioning piece and a tab positioning piece; the positioning table is a horizontal panel, the pole piece positioning piece and the lug positioning piece are both strip-shaped plate-shaped, and the pole piece positioning piece and the lug positioning piece are arranged on the positioning table in an L shape. Utmost point ear spot welding positioning fixture, simple structure, easily production fixes a position utmost point ear and pole piece to guaranteed the spot welding position of utmost point ear, production efficiency is high, and product quality is unified.

Description

A tab spot welding positioning fixture

technical field

The utility model relates to the technical field of tab spot welding, in particular to a positioning fixture for tab spot welding.

Background technique

A lithium-ion battery consists of a battery cell and battery tabs fixed on the battery cell. The tabs are fixed on the battery core by spot welding. At present, during the spot welding of battery tabs, the tabs are manually contacted with the pole pieces, and then spot welding is performed through the welding head. Manual operation cannot guarantee the spot welding position of the tabs, the distance between the tabs, and the perpendicularity between the tabs and the battery core, resulting in low production efficiency and poor product quality.

Utility model content

In order to overcome the deficiencies of the prior art, the utility model provides a lug spot welding positioning fixture to position the lug and the pole piece, thereby ensuring the spot welding position of the lug, high production efficiency, and uniform product quality.

The technical scheme of the utility model is as follows: a positioning fixture for tab spot welding, including a positioning platform, a pole piece positioning piece and a tab positioning piece; the positioning platform is a horizontal panel, and the pole piece positioning piece and the tab The positioning pieces are all in the shape of a strip plate, and the two are arranged in an "L" shape on the positioning platform; the area surrounded by the "L" half on the positioning platform is the positioning area, and the pole piece positioning piece faces the The side of the positioning area is a positioning surface; the tab positioning member is provided with a notch groove near the pole piece positioning member, and one side of the notch groove is flush with the positioning surface; the pole piece is placed in the positioning area , the front end of which abuts against the positioning surface, and one side thereof abuts against the tab positioning member, thereby realizing positioning; the tab passes through the notch groove and abuts against the positioning surface, thereby realizing positioning. After the pole piece and the pole lug are positioned, the welding device spot-welds the pole piece and the pole lug from above the positioning table.

The pole piece positioning piece is provided with an elliptical through hole in the same direction as the tab positioning piece, and the positioning platform is provided with a mounting hole, and a screw passes through the elliptical through hole and the mounting hole to connect the The pole piece positioning member is movably installed on the positioning platform.

The beneficial effects of the utility model are: the lug spot welding positioning fixture described in the utility model has a simple structure, is easy to produce, and positions the lug and the pole piece, thereby ensuring the spot welding position of the lug, high production efficiency, and the product Uniform quality.

Description of drawings:

Fig. 1 is a structural schematic diagram of the lug spot welding positioning fixture described in the present invention.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and preferred embodiments, but the implementation of the utility model is not limited thereto.

Referring to FIG. 1 , a tab spot welding positioning fixture includes a positioning table 10 , a pole piece positioning piece 20 and a tab positioning piece 30 .

The positioning platform 10 is a horizontal panel, and the pole piece positioning member 20 and the tab positioning member 30 are both in the shape of strip plates, and they are arranged on the positioning platform 10 in an "L" shape. The area surrounded by the "L" half on the positioning platform 10 is the positioning area 11 . The side of the pole piece positioning part 20 facing the positioning area 10 is a positioning surface 21 ; the tab positioning part 30 is provided with a notch 31 near the pole piece positioning part 20 . A side 32 of the notch 31 is flush with the positioning surface 21 .

When positioning, the pole piece is firstly placed in the positioning area 10 , its front end abuts against the positioning surface 21 , and one side thereof abuts against the tab positioning member 30 , so as to realize pole piece positioning. Then, the tab passes through the notch groove 31 and abuts against the positioning surface 21 to achieve positioning. After the pole piece and the pole lug are positioned, the welding device spot-welds the pole piece and the pole lug from above the positioning table.

In actual production, the spot welding position is adjusted as required. For this purpose, an elliptical through hole 22 in the same direction as the tab positioning member 30 is provided on the pole piece positioning member 20 . The positioning table 10 is provided with a mounting hole 12, and a screw (not shown) passes through the oval through hole 22 and the mounting hole 12 to movably install the pole piece positioning member 20 on the positioning table 10 superior. By moving the pole piece positioning member 20, the spot welding position can be adjusted.

The above content is a further detailed description of the utility model in combination with specific preferred embodiments, and it cannot be assumed that the specific implementation of the utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the utility model belongs, on the premise of not departing from the idea of the utility model, its structure form can be flexible and changeable, and a series of products can be derived. Just making some simple deductions or substitutions should be considered as belonging to the patent protection scope of the utility model determined by the submitted claims.

Claims (3)

1. a lug positioning clamp for spot welding, is characterized in that, comprises positioning table, pole piece keeper and lug keeper; Described positioning table is horizontal panel, and described pole piece keeper and described lug keeper are bar shaped tabular, and the two is L-shaped is located on described positioning table.

2. lug positioning clamp for spot welding as claimed in claim 1, is characterized in that, on described positioning table, the quilt region of " L " semi-surrounding is positioning area, and described pole piece keeper is locating surface towards the side of described positioning area; Described lug keeper is in offering gap slot near described pole piece keeper place, and a side of this gap slot is concordant with locating surface.

3. lug positioning clamp for spot welding as claimed in claim 2, it is characterized in that, described pole piece keeper is provided with and described lug spacer ellipse hole in the same way, described positioning table is provided with installing hole, and described pole piece keeper is movably arranged on described positioning table through this ellipse hole and described installation sky by a screw.