CN209773821U - A new type of positioning tray for power battery core welding - Google Patents

Abstract

The utility model discloses a novel power battery rolls up core welding with location tray, including tray body, set up on tray body up end and be located the utmost point ear setting element at tray body middle part, two set up on the tray body up end and be located the core setting element of utmost point ear setting element both sides respectively and connect the guide block on the terminal surface under tray body, utmost point ear setting element is including being fixed in circle needle and the reference column on the tray body up end, two roll up the core setting elements and all include three telescopic cylinder and set up the magnetism limit switch on every telescopic cylinder. The utility model discloses can carry out accurate positioning to rolling up core, gasket and connection piece, roll up core in the core utmost point ear welding process and roll up steady, the nothing of motion in the tray and strike, can not cause the damage to utmost point ear.

Description

A new type of positioning tray for power battery core welding

technical field

The utility model relates to the field of lithium battery production, in particular to a new positioning tray for welding cores of power batteries.

Background technique

In recent years, the lithium-ion battery industry has developed rapidly and is widely used in various aspects of life, such as digital products, energy storage products, electric vehicles and so on. The technology of each section of lithium-ion battery production is also constantly developing. In the production of winding lithium-ion batteries with square aluminum shells, the use of butterfly welding technology can improve the space utilization of square aluminum shell batteries to a certain extent, thereby achieving the purpose of increasing battery capacity. During the butterfly welding operation, it is necessary to use ultrasonic welding to weld the tabs of the winding core together through the gasket and the connecting piece. During the welding process, the tabs of the winding core have bad phenomena such as tab bending and folding, tab damage, and tab welding is not firm. The battery produced by such a bad winding core will cause excessive local current during the full charging process, and then It causes the battery to heat up, which seriously affects the performance and service life of the battery, and there is a certain degree of instability.

Utility model content

The technical problem to be solved by the utility model is to provide a new type of positioning tray for power battery winding core welding, which can accurately position the winding core, gasket and connecting piece, and the winding core moves smoothly in the tray during the welding process of the winding core lug. No impact, no damage to tabs.

The technical scheme of the utility model is:

A new type of positioning tray for power battery winding core welding, including a tray body, a tab positioning piece arranged on the upper end surface of the tray body and located in the middle of the tray body, two tab positioning pieces arranged on the upper end surface of the tray body and respectively located The core positioning parts on both sides and the guide blocks connected to the lower end surface of the tray body, the tab positioning parts include round needles and positioning columns fixed on the upper end surface of the tray body, the two winding core positioning Each piece includes three telescopic cylinders and a magnetic limit switch arranged on each telescopic cylinder, the magnetic limit switch is connected with the controller of the corresponding telescopic cylinder, and the telescopic rod end of each telescopic cylinder is connected with a positioning stop block, wherein the positioning block on one of the telescopic cylinders faces the lug positioning piece, and the other two telescopic cylinders are located between one of the telescopic cylinders and the tab positioning piece, and the positioning blocks of the two telescopic cylinders are parallel to each other.

The tab positioning member includes a positive pole positioning post fixed on the upper surface of the tray body, a negative pole positioning post and two round needles respectively arranged on the outside of the positive pole positioning post and the negative pole positioning post.

The positioning block is a strip-shaped rubber block structure.

The bottom of the tray body is provided with a bracket, the top of the bracket is fixedly connected to the lower end surface of the tray body, the bottom end of the bracket is connected to the guide block, and an adapter plate is fixed on the guide block. The adapter plate is provided with a connection card slot.

Advantage of the utility model:

The pole lug positioning part of the utility model can accurately position the gasket and the connecting piece; the winding core positioning part of the utility model includes a telescopic cylinder and a magnetic limit switch, and the magnetic limit switch senses the position used for grasping and releasing the winding core. When the iron block on the manipulator, it will automatically drive the telescopic cylinder to lock the winding core to ensure that the winding core will not shift during the movement of the pallet; the utility model is provided with a guide block, which can be moved on the guide rail. Thereby, the tray is driven to move to the welding position for welding; the adapter plate of the utility model is provided with a connection card slot, which is convenient for clamping with the drive device, and the drive device drives the positioning tray to move on the guide rail, ensuring the stable movement of the positioning tray , No impact.

Description of drawings

Fig. 1 is a structural representation of the utility model.

Fig. 2 is a structural schematic view of the positioning gasket, the connecting piece and the winding core of the utility model.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

A new type of positioning tray for power battery winding core welding, including a tray body 1, a tab positioning piece arranged on the upper end surface of the tray body 1 and located in the middle of the tray body 1, and two sets on the upper end surface of the tray body 1 and located respectively The core positioning parts on both sides of the tab positioning part and the guide block 9 connected to the lower end surface of the tray body, the tab positioning part includes a positive positioning column 2 fixed on the upper end surface of the tray body 1, a negative positioning column 3 and two Two circular needles 4 are respectively arranged on the outside of the positive positioning column 2 and the negative positioning column 3, and the two winding core positioning parts include three telescopic cylinders 5 and a magnetic limit switch 6 arranged on each telescopic cylinder 5, the magnetic limit switch 6 The position switch 6 is connected to the controller corresponding to the telescopic cylinder 5, and the telescopic rod end of each telescopic cylinder 5 is connected with a positioning block 7 of a strip-shaped rubber block structure, and the positioning block 7 on one of the telescopic cylinders 5 faces the pole ear Positioning parts, the other two telescopic cylinders 5 are located between one of the telescopic cylinders and the lug positioning parts and the positioning blocks 7 of the two telescopic cylinders are parallel and opposite; the bottom of the tray body 1 is provided with a bracket 8, and the top of the bracket 8 is in contact with the tray. The lower end surface of the main body 1 is fixedly connected, the bottom end of the bracket 8 is connected with a guide block 9 , an adapter plate 10 is fixed on the guide block 9 , and a connection card slot 11 is arranged on the adapter plate 10 .

Working principle of the utility model:

First, engage the slot on the positive gasket 12 with the positive positioning column 2 and place the positive gasket 12 on the tray body after passing through the corresponding round needle 4, and engage the slot of the negative gasket 13 with the negative positioning column 3 And the negative gasket 13 is placed on the tray body after passing through the corresponding round needle 4, and then the two winding cores 14 are placed on the tray body 1, when the magnetic limit switch 6 of each winding core positioning part senses the When the iron block on the manipulator of the winding core is released, the controller corresponding to the telescopic cylinder 5 will automatically drive the telescopic cylinder 5 to lock the winding core to ensure that the winding core will not shift during the movement of the pallet. After completion, put the positive electrode connecting piece 15 through the corresponding round needle 4 and place it on the positive electrode gasket 12. At this time, the positive electrode lug 16 of the winding core is located between the positive electrode gasket 12 and the positive electrode connecting piece 15, and the negative electrode The connecting piece 17 is placed on the negative electrode gasket 13 after passing through the corresponding round needle 4. At this time, the negative electrode lugs 18 of the two winding cores are all located between the negative electrode gasket 13 and the negative electrode connecting piece 17; 11 is engaged with the drive mechanism, and the drive mechanism drives the guide block 9 to move on the track until it reaches the welding position for welding, and then drives to move out after the welding is completed.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (4)

1. The utility model provides a novel power battery rolls up core welding with location tray which characterized in that: comprises a tray body, a pole lug positioning piece arranged on the upper end surface of the tray body and positioned in the middle of the tray body, two winding core positioning pieces arranged on the upper end surface of the tray body and respectively positioned at two sides of the pole lug positioning piece, and a guide block connected on the lower end surface of the tray body, the tab positioning pieces comprise round needles and positioning columns which are fixed on the upper end surface of the tray body, the two coil core positioning pieces respectively comprise three telescopic cylinders and magnetic limit switches arranged on each telescopic cylinder, the magnetic limit switch is connected with the controller of the corresponding telescopic cylinder, the telescopic rod end of each telescopic cylinder is connected with a positioning stop block, the positioning stop block on one telescopic cylinder faces to the lug positioning piece, the other two telescopic cylinders are positioned between one telescopic cylinder and the lug positioning piece, and the positioning stop blocks of the two telescopic cylinders are parallel and opposite.

2. The novel positioning tray for welding the power battery winding core according to claim 1 is characterized in that: the lug positioning piece comprises a positive positioning column, a negative positioning column and two round pins, wherein the positive positioning column and the negative positioning column are fixed on the upper end face of the tray body, and the two round pins are respectively arranged on the outer sides of the positive positioning column and the negative positioning column.

3. The novel positioning tray for welding the power battery winding core according to claim 1 is characterized in that: the positioning stop block is of a strip-shaped rubber block structure.

4. The novel positioning tray for welding the power battery winding core according to claim 1 is characterized in that: the tray comprises a tray body and is characterized in that a support is arranged below the tray body, the top end of the support is fixedly connected with the lower end face of the tray body, the bottom end of the support is connected with a guide block, an adapter plate is fixed on the guide block, and a connecting clamping groove is formed in the adapter plate.