Multi-position pole sheet independent deviation correcting device and deviation correcting method thereof

Abstract

The invention discloses a multi-position pole sheet independent deviation correcting device. The device comprises N sets of deviation correcting components, (N+1) sets of visual positioning systems and a linear motor module; the deviation correcting components are tightly distributed above the linear motor module; the visual positioning systems are divided into two groups and are arranged on the left side and right side of a position above the deviation correcting components so as to separately select two mark points on any to-be-corrected pole sheet. The multi-position pole sheet independentdeviation correcting device is applicable to equipment provided with a plurality of battery cells in a laminated manner and is arranged before a battery cell lamination procedure; a plurality of parallel independent deviation correcting mechanisms are designed; a set of UVW aligning platform is additionally arranged on each motor rotor; each set of UVW aligning platform is corresponding to a set of pole sheet carrier; an industrial camera matrix is arranged above each carrier; and therefore, deviation rectification can be performed on a plurality of pole sheets simultaneously. With the operation of correcting the deviation of the plurality of pole sheets simultaneously realized, the production efficiency and precision of lithium battery lamination production industry are remarkably improved, the flatness of a multi-pole sheet simultaneous lamination process is improved, and the quality of a lithium battery is ensured.

Description

technical field [0001] The invention relates to lithium battery pole piece production equipment, in particular to a multi-station pole piece independent deviation correction device and a deviation correction method thereof. Background technique [0002] At present, the market demand for large-scale lithium electronic power batteries is soaring, and in the current lithium battery manufacturing process, a lamination machine is usually used to assemble the positive and negative electrodes of the lithium battery cell and the separator in a Z-shaped stack to make a battery. core. The common lamination method in the prior art is the lamination table moving back and forth. The left and right two picking mechanical arm mechanisms of the lithium battery lamination equipment pick up the pole pieces in the positive and negative troughs, and then position them on the secondary positioning workbench. Finally, the material is alternately discharged on the stacking table. This equipment c...

AI Technical Summary

Problems solved by technology

The common lamination method in the prior art is the lamination table moving back and forth. The left and right two picking mechanical arm mechanisms of the lithium battery lamination equipment pick up the pole pieces in the positive and negative troughs, and then position them on the secondary positioning workbench. Finally, the material is alternately discharged on the stacking table. This equipment can only produce one cell at a time. The stacking speed can only be between 1.5-2.0s / pcs according to the size of the pole piece. The slow stacking speed restricts the production efficiency. High battery production costs make it difficult to meet market demand

Therefore, the industry has proposed a plan to stack multiple batteries at the same time, but it is difficult to control the levelness of the pole pieces when stacking multiple batteries at the same time, and poor levelness of the pole pieces will seriously affect the quality of the battery

However, the existing pole piece deviation correction device can only correct the deviation of a single pole piece, and cannot realize the deviation correction of multiple pole pieces at the same time, which restricts the production efficiency and is difficult to meet the market demand

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