Automatic thickness measuring device for lithium ion battery

Abstract

The invention relates to an automatic thickness measuring device for a lithium ion battery, which comprises two sets of thickness measuring upper platform components sliding up and down, a set of thickness measuring reference platform sliding in two directions and a rack, wherein each set of thickness measuring upper platform component comprises an upper platform thickness measuring contact plate,an up-and-down sliding weight block, a sliding rail, a displacement sensor, a balance rod, a balance adjusting block and a fixed plate. When an up-and-down action air cylinder acts, the up-and-down sliding weight block drives the upper platform thickness measuring contact plate and the displacement sensor to act up and down synchronously, and when the upper platform thickness measuring contact plate makes contact with a battery below the upper platform thickness measuring contact plate, the displacement sensor records the displacement distance. The thickness measurement reference platform component comprises two vacuum adsorption sliding platforms, a bidirectional screw rod and a servo motor. According to the invention, workers can be reduced, and the labor cost is saved; no defective product flows out by adopting an automatic thickness measuring device; and the appearance reject ratio is reduced from 2% to 0.01%, so that the appearance reject ratio caused by manual thickness clampingis effectively improved.

Description

technical field [0001] The invention relates to a lithium ion battery production device, in particular to an automatic lithium ion battery thickness measuring device. Background technique [0002] Lithium-ion battery thickness measurement is an important part of battery testing. At present, lithium-ion battery thickness measurement employees use a fixed single mold to perform manual thickness measurement. The thickness measurement efficiency is low. The thickness measurement mold will wear out, rust, and cause The accuracy is reduced, which affects the effect of card thickness. The existing mold uses a one-to-one thickness mold, which requires a large amount of purchase and high manufacturing costs; the on-site card thickness needs to be operated by a special person, which wastes labor costs. In the process of thickness measurement using a fixed mold, it is easy to cause a large appearance of the battery, and the appearance defect rate is as high as 2%. Contents of the in...

AI Technical Summary

Problems solved by technology

[0002] Lithium-ion battery thickness measurement is an important part of battery testing. At present, lithium-ion battery thickness measurement employees use a fixed single mold to perform manual thickness measurement. The thickness measurement efficiency is low. The thickness measurement mold will wear out, rust, and cause The accuracy is reduced, which affects the effect of card thickness

The existing mold uses a one-to-one thickness mold, which requires a large amount of purchase and high manufacturing costs; the on-site card thickness needs to be operated by a special person, which wastes labor costs

In the process of thickness measurement using a fixed mold, it is easy to cause a large surface appearance of the battery, and the appearance defect rate is as high as 2%.

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