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Method and device for testing tensile force of welding point of cover cap of lithium battery

A technology of tensile testing and lithium batteries, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve problems such as the inability to quickly detect unqualified welding firmness, achieve the effect of improving quality and efficiency, and minimizing time

Inactive Publication Date: 2018-03-06
深圳市忠泽科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, the main purpose of the present invention is to provide a tensile testing device and method for the solder joint of a lithium battery cap, aiming at solving the problem that the cap and the tab cannot be quickly detected during the welding process in the automatic production equipment or production line of the lithium battery. The degree and the problem of rapid elimination of non-conforming products

Method used

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  • Method and device for testing tensile force of welding point of cover cap of lithium battery
  • Method and device for testing tensile force of welding point of cover cap of lithium battery
  • Method and device for testing tensile force of welding point of cover cap of lithium battery

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Embodiment 1

[0046] refer to Figure 1 to Figure 5 , the present invention is a kind of tensile testing device of cap solder joint of lithium battery, comprises platform mechanism 1, the tension mechanism 2 that is arranged on the platform mechanism 1 and the unqualified cap discharging mechanism 3 that is arranged on the platform mechanism 1;

[0047] The platform mechanism 1 in the present invention comprises a main frame 11, a transverse rail assembly 12 arranged on the upper end of the main frame 11, a secondary frame 13 arranged on the lateral rail assembly 12, and a connecting block 18 connected to one side of the secondary frame 13. The transmission assembly 14 , the power component 16 connected with the transmission assembly 14 and the electric cylinder 17 arranged on the upper end of the secondary frame 13 , the power component 16 is arranged on the main frame 11 through the fixing plate 15 .

[0048] Preferably, the tension mechanism 2 includes a fixed bracket 21 connected to the...

Embodiment 2

[0055] The transmission assembly 14 includes a driving link connected to the power component 16 and a transmission link 142 connected to the driving link. One end of the driving link 142 is connected to the driving link, and the other end is connected to the connection block 18 . When the pulling force is judged to be unqualified, the power part 16 drives the active connecting rod to rotate to the reverse limit position, and then resets.

[0056] Preferably, adjust the stroke and speed of the electric cylinder 17 and the pulling force of the tension regulator 22 according to the pulling force of the tabs of the lithium battery 5 and the welding of the cap 4, by judging the pulling force value of the pulling force sensor 242 or the stroke range of the electric cylinder 17 To determine whether the welding of the tab and the cap 4 is good.

[0057] The specific steps of the tension test method of the lithium battery cap solder joint of the present invention are as follows:

[00...

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Abstract

The invention discloses a tensile test method and device for lithium battery cap solder joints. The device includes a platform mechanism, a tension mechanism arranged on the platform mechanism, and an unqualified cap discharge mechanism arranged on the platform mechanism; the platform mechanism includes a main frame , the transverse guide rail assembly arranged on the upper end of the main frame, the sub-frame arranged on the transverse guide rail assembly, the transmission assembly connected to one side of the sub-frame, the power part connected to the transmission assembly and the electric cylinder arranged on the upper end of the sub-frame , the power components are set on the main frame through the fixed plate. The above-mentioned device and method for testing the tensile force of the solder joints after cap welding in the production process of the lithium battery, through the monitoring of the tensile testing device and the comparison and calculation of the tension adjustment value, as well as the rapid movement and stroke setting of the electric cylinder, comprehensively, accurately and quickly determine the cap and the lithium battery. Excellent welding quality; through the quick response of the power unit and the linkage of the eccentric mechanism driven by the movement, the unqualified products can be quickly eliminated, which improves the quality and efficiency of monitoring.

Description

technical field [0001] The invention relates to the field of mechanical production, in particular to a device and method for testing the tensile force of solder joints after cap welding in the lithium battery production process. Background technique [0002] At present, the equipment in the domestic lithium battery industry is generally semi-automatic equipment. When monitoring the welding effect of lithium battery caps and tabs, the welding quality is generally judged by observing the solder joints, and it is difficult to judge whether the welding is firm. [0003] With the development of electric products such as electric vehicles, the quality requirements for lithium batteries are getting higher and higher, and there are also higher requirements for the quality of lithium battery cap and tab welding. [0004] In the prior art, there is no device that can be used in lithium battery automatic production equipment or production lines to quickly detect the welding firmness of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B07C5/34
CPCB07C5/34G01N2203/0017G01N2203/0037G01N2203/0296
Inventor 赵永忠
Owner 深圳市忠泽科技有限责任公司
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