CN203751540U - Double-station square lithium battery case laser welding jig - Google Patents

Abstract

The utility model discloses a double-station square lithium battery shell laser welding fixture, which comprises a body bracket, a "U"-shaped bracket is arranged on one side of the upper surface of the body bracket, and the opening part of the "U"-shaped bracket faces On the inner side, one end of the bracket extends into the opening, and the other end is provided with a fine-tuning screw, and a positioning bracket is provided on the bracket near the end of the fine-tuning screw, and the bracket is set on the transposition cylinder, and the transposition cylinder is provided with a linear guide rail, The top of the positioning bracket is provided with a copper bar with an oblique opening, the top of the "U"-shaped bracket is provided with a fixed plate, the fixed plate is provided with a downward pressure cylinder, and the lower end of the downward pressure cylinder is provided with a pressure plate with an oblique opening. The utility model realizes the mode of double-station work in turn, which facilitates the production operation, improves the production efficiency, and is easy to realize large-scale industrial production. At the same time, the positioning of the welding workpiece is accurate, the welding quality is improved, the amount of rework is reduced, and the labor intensity is reduced. , to achieve electrical automation control.

Description

A dual-station square lithium battery shell laser welding fixture

technical field

The utility model belongs to the technical field of lithium battery production and relates to a double-station square lithium battery casing laser welding fixture.

Background technique

With the advancement of lithium-ion battery technology, high-capacity and large-volume batteries have gradually become a trend. Taking into account factors such as safety and heat dissipation of high-capacity batteries, batteries with metal casings have gradually become dominant. During the welding process of single lithium-ion batteries, due to the large production scale, high precision and high welding strength are required. The original welding fixture has a small number of loading at one time, generally 1-3 batteries, and in the process of loading and unloading the battery, the laser welding machine is in a waiting state, and the welding efficiency of the whole machine is low. In addition, the original copper bar with a bevel used for positioning on the left side of the positioning bracket has no fine-tuning function, and manual adjustment is difficult, resulting in problems such as uneven weld seams and large leakage. During mass production, a large amount of manpower, material resources and financial resources are required here.

Utility model content

The purpose of the utility model is to provide a double-station square lithium battery casing laser welding fixture capable of quickly and efficiently welding the lithium battery casing and the end cover together, which has the advantages of convenient use and easy automation.

The purpose of this utility model can be realized through the following technical solutions:

A double-station square lithium battery shell laser welding fixture, including a body bracket, a forward-push cylinder, a down-press cylinder, a bracket, and a transposition cylinder. A "U"-shaped bracket is provided on one side of the upper surface of the body bracket, and the " The opening of the U"-shaped bracket faces inwardly, one end of the bracket extends into the opening, the other end is provided with a fine-tuning screw, and the bracket near the end of the fine-tuning screw is provided with a positioning bracket, and the bracket is arranged on the transposition cylinder. The transposition cylinder is provided with a linear guide rail, the top of the positioning bracket is provided with a copper bar with a bevel, the top of the "U"-shaped bracket is provided with a fixing plate, and the fixing plate is provided with a down-pressing cylinder, and the down-pressing cylinder The lower end is provided with a pressing plate with an oblique opening.

The lower end of the "U"-shaped bracket is fixed on the upper surface of the body bracket, and the vertical part of the body bracket is provided with a forward cylinder with a pressure plate. The forward cylinder is located outside the body bracket, and the pressure plate is located in the body bracket.

The positioning bracket and the bracket are in the shape of a horizontal "L".

One end of the fixing plate is fixed on the top of the "U"-shaped bracket, and the other end is located above the bracket.

The fine-tuning screw is connected to the positioning bracket.

The transposition cylinder is arranged on the linear guide rail, the body support is provided with a groove parallel to the linear guide rail, and a slidable positioning block is arranged in the groove.

The copper bar is fixed on the positioning bracket by bolts, and the inclination of the bevel at one end of the copper bar is 15°-60°.

The copper bars are made of red copper.

The fine adjustment screw is made of red copper or brass.

The beneficial effects of the utility model:

1. The utility model realizes the way of double-station work in turn, solves the waiting time of laser welding when loading workpieces, facilitates production operations, improves production efficiency, and is easy to realize large-scale industrial production;

2. Under the joint action of the forward push cylinder, the downward pressure cylinder and the positioning copper bar, the welding workpiece is positioned accurately, which improves the welding quality, reduces the amount of rework, and reduces the labor intensity;

3. Due to the use of forward push cylinder, down pressure cylinder and transposition cylinder, electrical automation control is realized.

Description of drawings

In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in conjunction with the accompanying drawings.

Fig. 1 is a front view of the utility model.

Fig. 2 is a top view of the utility model.

Detailed ways

As shown in Figures 1 and 2, a double-station square lithium battery casing laser welding fixture includes a body bracket 13, a forward push cylinder 2, a downward pressure cylinder 4, a bracket 11, and a transposition cylinder 14. The body bracket 13 One side of the upper surface is provided with a "U"-shaped support 3, the opening of the "U"-shaped support 3 is facing inwardly, and the support 11 is arranged on the transposition cylinder 14, and one end of the support 11 stretches into the opening. Fine adjustment screw 12 is arranged, and fine adjustment screw 12 is made of red copper or brass material. A positioning support 10 is provided on the support 11 close to one end of the fine adjustment screw 12, and the positioning support 10 and the support 11 are in the shape of a horizontal "L". The transposition cylinder 14 is provided with a linear guide rail 15, and the top of the positioning bracket 10 is provided with a copper bar 9 with an oblique opening. The copper bar 9 is made of red copper material. °. The top of the "U"-shaped support 3 is provided with a fixed plate 5, one end of the fixed plate 5 is fixed on the top of the "U"-shaped support 3, and the other end is located above the support 11. The fixed plate 5 is provided with a downward pressure cylinder 4, and the lower end of the downward pressure cylinder 4 is provided with a pressing plate 6 with an oblique opening. The lower end of the "U"-shaped bracket 3 is fixed on the upper surface of the body bracket 13, and the vertical part of the body bracket 13 is provided with a forward cylinder 2 with a pressure plate 1, the forward cylinder 2 is located outside the body bracket 13, and the pressure plate 1 is located in the body bracket 13 . The fine adjustment screw 12 is connected with the positioning bracket 10 . The transposition cylinder 14 is arranged on the linear guide rail 15. Under the control of the transposition cylinder 14, the body bracket 13 together with the battery 8, the copper bar 9 with a bevel, the positioning bracket 10, and the fine-tuning screw 12 move left and right on the linear guide rail 15. , to complete the transposition work. The body bracket 13 is provided with a groove 17 parallel to the linear guide rail 15, and a slidable positioning block 16 is provided in the groove 17 for adjusting the width to adapt to batteries of different widths. The copper bar 9 is fixed on the positioning bracket 10 by bolts.

Working process: ① Before work, put a battery to be welded, adjust the position of the copper strip 9 through the fine-tuning screw 12 (the other station is also adjusted), and align the weld seam of the battery to be welded with the laser beam emitted by the laser welding head 7 It can be welded normally.

② Place the square lithium battery 8 on the bracket 11, push the cylinder 2 forward to push the pressure plate 1, press the cylinder 4 down to push the pressure plate 6, fix the square lithium battery 8, and then use the laser welding head 7 to weld the square lithium battery.

③ After a station is welded, under the control of the transposition cylinder 14, the body bracket 13, together with the battery 8, the copper strip 9 with a bevel, the positioning bracket 10, and the fine-tuning screw 12 move left and right on the linear guide rail 15 to complete the transposition Work, continue to weld the battery at the next station.

The above content is only an example and description of the structure of the utility model. Those skilled in the art make various modifications or supplements to the described specific embodiments or replace them in similar ways, as long as they do not deviate from the utility model. Structures or beyond the scope defined in the claims shall belong to the protection scope of the present utility model.

Claims (9)

1. A double-station square lithium battery shell laser welding fixture, characterized in that it includes a body bracket (13), a forward push cylinder (2), a downward pressure cylinder (4), a bracket (11), and a transposition cylinder (14 ), the upper surface of the body bracket (13) is provided with a "U"-shaped bracket (3), the opening of the "U"-shaped bracket (3) faces inward, and one end of the bracket (11) extends toward In the open part, the other end is provided with a fine-tuning screw (12), and the bracket (11) near the end of the fine-tuning screw (12) is provided with a positioning bracket (10), and the bracket (11) is located on the transposition cylinder (14). The transposition cylinder (14) is provided with a linear guide rail (15), the top of the positioning bracket (10) is provided with a copper strip (9) with an oblique opening, and the top of the "U"-shaped bracket (3) is provided with a fixed plate (5), the fixed plate (5) is provided with a press-down cylinder (4), and the lower end of the press-down cylinder (4) is provided with a pressing plate (6) with an oblique opening. 2. A double-station square lithium battery shell laser welding fixture according to claim 1, characterized in that the lower end of the "U"-shaped bracket (3) is fixed on the upper surface of the body bracket (13), and the body bracket ( 13) A forward push cylinder (2) with a pressure plate (1) is provided on the vertical part, the forward push cylinder (2) is located outside the body support (13), and the pressure plate (1) is located inside the body support (13). 3. A double-station square lithium battery shell laser welding jig according to claim 1, characterized in that, the positioning bracket (10) and the bracket (11) are in the shape of a horizontal "L". 4. A double-station square lithium battery casing laser welding fixture according to claim 1, characterized in that one end of the fixing plate (5) is fixed on the top of the "U"-shaped bracket (3), and the other end is located on the bracket (11) ABOVE. 5. The double-station square lithium battery shell laser welding jig according to claim 1, characterized in that the fine-tuning screw (12) is connected to the positioning bracket (10). 6. A double-station square lithium battery shell laser welding fixture according to claim 1, characterized in that the transposition cylinder (14) is set on the linear guide rail (15), and the body bracket (13) A groove (17) parallel to the linear guide rail (15) is provided on the top, and a slidable positioning block (16) is arranged in the groove (17). 7. A double-station square lithium battery casing laser welding fixture according to claim 1, characterized in that the copper strip (9) is fixed on the positioning bracket (10) by bolts, and one end of the copper strip (9) The slope of the bevel is 15°-60°. 8. The double-station square lithium battery case laser welding jig according to claim 1, wherein the copper strip (9) is made of red copper. 9. A double-station square lithium battery case laser welding jig according to claim 1, characterized in that the fine-tuning screw (12) is made of red copper or brass.