Double-manipulator interactive lug forming device

Abstract

The invention discloses a double-manipulator interactive lug forming device. The device comprises a lug pull-out manipulator, a lug feeding manipulator, a lug cutter and a welding machine die head. The invention is characterized in that the front end of the lug cutter is provided with the lug pull-out manipulator and the lug feeding manipulator, the back of the lug cutter is provided with a lug press plate controlled by a lug pressure air cylinder; and the front part of the lug feeding manipulator is also provided with a laser sensor which controls the stop position of the lug feeding manipulator by sensing the edge of a pole piece. The lug is prepared by pulling so as to fundamentally solve the bending deformation problem of the lug, the lug pressure mechanism is added so as to prevent the change of the length of the lug caused by the backward movement of the lug; and the lug sends the response of the manipulator installation laser sensor on the edge of the pole piece so as to ensurethe precision of the relative position between the lug and the pole piece when the lug is welded.

Description

technical field [0001] The invention relates to a lithium ion battery pole piece forming machine, in particular to a pole ear forming device for interactively making pole ears by using dual manipulators. Background technique [0002] Pole piece forming includes pole lug welding, pole piece encapsulation, pole piece cutting and material collection processes. It is an indispensable process in the production process of lithium-ion batteries, and it is also a key process that directly affects the safety and consistency of batteries. [0003] In the tab welding process, the rolled tabs need to be made into a single tab of the length required by the process standard, and then sent to the ultrasonic welding die, and then welded to the pole piece substrate after positioning. The tab is a highly flexible metal sheet, so it is easily deformed and twisted. [0004] This process requires that the length of the tabs be accurate, the relative position of the tabs sent to the welding die...

AI Technical Summary

Problems solved by technology

[0005] 1) The manipulator is located at the back of the lug cutter, so that the lugs at the front end of the machine are free to hang and stretch, and the lugs are easy to sag, making it difficult to ensure the consistency of the length of the lugs;

[0006] 2) When the manipulator sends out the tabs, due to mechanical friction or barriers, the tabs will be bent, severely deformed and unable to be sent out;

[0007] 3) The lugs hanging out of the manipulator are easily deformed and offset due to no guidance or fixation, resulting in welding deflection

[0008] 4) A single manipulator cannot guarantee the consistency of the relative position of the tab and the pole piece after welding

Based on the above reasons, the failure rate and defective rate of tab production in existing equipment are high. How to solve this problem has become a subject of concern to the industry.

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