JPH06333556A - Method for connecting terminal of lead-acid battery - Google Patents

Abstract

PURPOSE:To attain automatic connection, and improve productivity by fitting a terminal to the electrode pole of a lead-acid battery, pressing the horn top end part of an ultrasonic vibrator onto the top end part of the pole plate, and lowering it with ultrasonic vibration. CONSTITUTION:The terminal 7 of a lead-acid battery has a circular hole fittable from the upper end of a pole plate 6 formed thereon, and the terminal 7 is fitted to the plate 6 protruded into the recessed part of a lid 5. An ultrasonic vibrator is lowered, and the top end part of a horn 3 is pressed onto the top end of the plate 6. The ultrasonic vibrator is then lowered while transmitting the ultrasonic vibration generated by it to the horn 3 top end to crush the plate 6, and the crushed part is caulked with the terminal 7. The horn 3 is then raised, and the connection of the terminal 7 is completed. Thus, productivity is improved because of the automatic connection without applying a flux, and uniform connection can be attained because of the mechanical and automatic connection.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for joining a pole and a terminal in a lead storage battery.

[0002]

2. Description of the Related Art Conventionally, as a method of joining a pole and a terminal in a lead storage battery, a gas burner has mainly been used for manual or automatic welding. However, this method is difficult to work and uniform welding is not possible. Since it is difficult to do, a method of applying a heated iron to the tip of the pole and welding it to the terminal has been adopted.

[0003]

The method using a heated trowel described in the prior art is fairly frequent because the surface of the trowel becomes hot and is covered with an oxide film, which significantly reduces the thermal conductivity. There is a problem in that workability is reduced because it is necessary to apply flux or the like to surface-treat the trowel.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a method for joining lead acid battery terminals having excellent productivity.

[0005]

In order to achieve the above-mentioned object, the present invention fits a lead storage battery terminal to a pole column of a lead storage battery, and a horn tip portion of an ultrasonic vibrator is attached to the tip portion of the pole column. Is abutted, and the tip of the horn is lowered while ultrasonically vibrating to plastically deform the tip of the pole, thereby joining the terminal and the pole.

[0006]

[Operation] When the horn tip is applied to the pole post and lowered while applying ultrasonic vibration to the horn, the tip of the pole is crushed and adheres to the terminals for bonding.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic view of an apparatus used in the present invention, and FIGS. 2 to 4 are explanatory views showing the present invention in order of steps. Reference numeral 1 is an ultrasonic vibrator, which is an ultrasonic vibration generator 2 and a horn for transmitting ultrasonic vibration. This ultrasonic vibrator 1 consisting of 3 and 3 is an industrial robot 4
It is attached to and can be moved vertically and horizontally.

Next, a method of joining the poles and the terminals using the above device will be described. As shown in FIG. 2, the terminal 7 is fitted into the pole 6 protruding into the recess of the lid 5 of the lead storage battery.
The terminal 7 is formed with a circular hole (not shown) that can be fitted from the upper end of the pole 6. Then, the ultrasonic vibrator 1 is lowered and the tip of the horn 3 is brought into contact with the tip of the pole 6. Next, as shown in FIG. 3, while the ultrasonic vibration generated by the ultrasonic generator 2 is transmitted to the tip of the horn 3, the horn 3 is moved down to make the pole 6
Is crushed, and the crushed part and the terminal 7 are crimped. Next, as shown in FIG. 4, the horn 3 is raised to complete the joining of the terminals.

[0009]

Since the present invention is configured as described above, it has the following effects. (1) Productivity is excellent because bonding can be performed automatically without applying flux. (2) Since the joining is performed mechanically and automatically, uniform joining can be obtained.

[Brief description of drawings]

FIG. 1 is a schematic view of an apparatus used in the present invention.

FIG. 2 is an explanatory diagram of the present invention showing a state before a pole column and a terminal are joined.

FIG. 3 is an explanatory view of the present invention showing a state in which a pole and a terminal are being joined.

FIG. 4 is an explanatory view of the present invention showing a state after joining the pole and the terminal.

[Explanation of symbols]

 1 Ultrasonic vibrator 3 Horn 6 Poles 7 Terminals

Claims (1)

[Claims] 1. A lead storage battery terminal is fitted to a pole column of a lead storage battery, a horn tip portion of an ultrasonic vibrator is brought into contact with a tip portion of the pole column, and the horn tip portion descends while vibrating ultrasonically. By doing so, the tip of the pole column is deformed and the terminal and the pole column are joined together.