JPH07105918A - Device for supplying upper lid to battery - Google Patents

Abstract

PURPOSE:To insert an upper lid in a specified position in the upper part of a battery and weld fast simultaneously without causing dislocation by furnishing a vacuum hole along the center line in axial direction of an ultrasonic horn, and attracting the upper lid with this horn. CONSTITUTION:A vacuum hole 1a is provided along the center line in axial direction of an ultrasonic horn 1. A battery 4 is transported by a conveyor which performs intermittent motions, and is set in the lower part of a batery locating jig 3. An upper lid 2 is transported by an air feeder, separated at equal spacing by a scratch-out jig, and set in the lower part of the horn 1 which is provided with the hole 1a as described. The horn 1 is sunk to the set position to attract the lid 2, and then is put in standby in the lifted condition, and the jig 3 is moved down by a cylinder device. and the upper part of a battery is located. The horn 1 with the lid 2 attracted thereto sinks to the upper part of the battery 4. and the lid 2 is inserted to the specified position in the upper part of the battery 4 and welded fast ultrasonically at the same time, and thus dislocation is precluded.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an upper lid supply device capable of inserting an upper lid into an upper portion of a battery and simultaneously performing welding by using an ultrasonic horn capable of adsorbing the upper lid by utilizing a vacuum. .

[0002]

2. Description of the Related Art In order to prevent the leakage of electrolyte, a sealed structure for a battery is used.
Need to weld.

Conventionally, the insertion and welding of the upper lid into the liquid injection port on the upper part of the battery has been divided into an upper lid insertion step and an upper lid welding step, as shown in FIG. That is, when the battery 4 comes to the upper lid insertion step, the battery positioning jig 3 is lowered to position the upper corner of the battery 4, and then the vacuum hole 5a penetrating along the axial center line is formed. The upper lid 2 is sucked and held by the provided cylindrical upper lid suction jig 5, and further lowered to the upper portion of the battery 4, so that the upper lid 2 is inserted into a predetermined position on the upper portion of the battery 4. Then, the battery positioning jig 3 and the upper lid suction jig 5 are raised. Next, the battery 4 is moved to the upper lid welding step, and the ultrasonic horn 6 in which one end of the cylinder is frustoconical and the tip portion is formed to have a diameter substantially the same as the diameter of the upper lid is lowered until it comes into contact with the upper lid 2, and the previous step is performed. The upper lid 2 inserted in the upper part of the battery 4 was welded.

[0004]

However, in the above-mentioned conventional method, after the upper lid 2 absorbed by the upper lid adsorption jig 5 in the upper lid insertion step is inserted into a predetermined position above the battery 4, the upper lid adsorption jig is inserted. When the upper lid 2 is disconnected from the upper lid 5, it is difficult to separate the upper lid suction jig 5 and the upper lid 2 by the residual pressure of the vacuum only by blocking the vacuum suction with a valve or the like. Must be supplied to the upper lid suction jig 5 to reduce the residual pressure of the vacuum and separate.

At this time, the upper lid 2 may be displaced from the determined position on the upper portion of the battery 4 by inserting air after inserting the upper lid 2 at the determined position on the upper portion of the battery 4, and the next upper lid may be displaced. In the welding process, the upper lid 2 is welded while the position of the battery is displaced, so that there is a problem that the battery cannot be hermetically sealed and becomes defective.

The present invention solves the above-mentioned problems of the prior art, and provides a battery top lid supply device capable of performing welding at the same time as inserting the battery into a predetermined position of the battery without shifting the position of the top lid. To aim.

[0007]

In order to achieve this object, the device for supplying an upper lid to a battery of the present invention is provided with a vacuum hole along the axial center line of the ultrasonic horn. The horn allows the upper lid to be adsorbed and inserted into a predetermined position on the upper part of the battery to be welded at the same time.

The basic structure of the ultrasonic horn is the same as that of the conventional ultrasonic horn, and one end of the cylinder has a truncated cone shape, and the tip has the same diameter as the diameter of the upper lid. is there.

In the present invention, a vacuum hole is provided along the axial center line of the ultrasonic horn. The vacuum hole is about 1/6 to 1 of the diameter of the tip of the ultrasonic horn.
It is preferably about / 7.

[0010]

The ultrasonic horn provided with a vacuum hole along the axial center line enables the upper lid to be adsorbed and welded. The separation is not required, and the upper lid can be inserted into a predetermined position on the battery without being displaced, and can be welded at the same time.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a main part of the upper lid supply device of the present invention, in which a vacuum hole 1a is provided along the axial center line of a conventional ultrasonic horn 1. The same members as those of the conventional upper lid supply device are designated by the same reference numerals, and detailed description thereof will be omitted.

FIG. 2 is a schematic view of the upper lid supply device, in which the battery 4 is conveyed by the intermittently operating conveyor 7 and set under the battery positioning jig 3. Also,
The upper lid 2 was conveyed by the air feeder 9, separated by the upper lid oyster removing jig 8 at equal intervals, and set under the ultrasonic horn 1 having the vacuum hole 1a. The ultrasonic horn 1 was lowered to the set position to adsorb the upper lid 2, and then the ultrasonic horn 1 was put on standby while being raised. In this state, the battery positioning jig 3
Is moved downward by the cylinder to position the upper portion of the battery 4, the ultrasonic horn 1 lowers to the upper portion of the battery 4 with the upper lid 2 adsorbed, and the upper lid 2 is inserted at a predetermined position on the upper portion of the battery 4. At the same time, ultrasonic welding is performed.

[0014]

As described above, according to the present invention, ultrasonic welding is not performed while the positional displacement of the upper lid is still generated, and it is about 1 to 2% as compared with the case of using the conventional upper lid supply device. The number of defects can be reduced, and the space occupied by the device can be reduced by about half by integrating the upper lid insertion section that performs the upper lid insertion step and the upper lid adsorption section that performs the upper lid adsorption step.

[Brief description of drawings]

FIG. 1 is a schematic process diagram showing a main part of an upper lid supply device according to the present invention.

FIG. 2 is a process schematic diagram of the upper lid supply device in the present invention.

FIG. 3 is a schematic view of a conventional upper lid supply device.

[Explanation of symbols]

 1 ultrasonic horn 1a vacuum hole 2 upper lid 3 battery positioning jig 4 battery 5 upper lid suction jig 5a vacuum hole 6 ultrasonic horn 7 intermittent conveyor 8 upper lid oyster jig 9 air feeder

Claims (1)

[Claims] 1. An upper lid supply device for a battery comprising an ultrasonic horn provided with a vacuum hole along an axial center line.