Winding machine grasping mechanical hand and battery cell screening method thereof

Abstract

The invention discloses a winding machine grasping mechanical hand, which comprises a grasping mechanical hand used for transferring battery cells, wherein laser detection devices with the same quantity and in equal space distribution are arranged at the upper end and the lower end of the grasping mechanical hand; the space, without the laser detection device, in the middle of the grasping mechanical hand is smaller than the product of the inner diameter of the battery steel shell and the maximum shell entering rate of the battery cell; the winding machine grasping mechanical hand also comprises a digital chip, a single chip microcomputer controller and a detection lamp; the digital chip is used for coding a receiving signal of the laser detection device; the single chip microcomputer controller is used for receiving a coding signal processed by the digital chip and performing detection and judgment; the detection lamp is electrically connected with the single chip microcomputer controller. The laser is added onto the fully automatic grasping mechanical hand of a winding machine; the photoelectric signal is converted into the digital signal through the digital chip and the single chip microcomputer program controller; the diameter is detected; the wound big battery cells can be precisely picked out; the battery cells entering the next work procedure are ensured to totally enter the shell; the resource waste can be reduced; the work efficiency can also be improved.

Description

technical field [0001] The invention belongs to the field of battery technology, and more specifically, the invention relates to a winding machine grasping manipulator and a battery screening method thereof. Background technique [0002] Due to the excessive development and utilization of non-renewable resources by humans, the reserves of oil, natural gas and coal are decreasing day by day, which in turn leads to an increase in the prices of these non-renewable resources. At the same time, with the continuous growth of social economy and global population, environmental problems have become a major problem for human survival. Therefore, the "green energy" that is both sustainable and environmentally friendly-electrochemical energy has attracted special attention. Among many "green energies", lithium-ion batteries are the most popular among electric vehicles because of their long cycle life, high energy density, safety and environmental protection. The cylindrical lithium-i...

AI Technical Summary

Problems solved by technology

[0003] Cylindrical lithium-ion batteries have a relatively high degree of automated production, but each process in the automated production process has an allowable error range. When the errors of all processes are added together, it may cause some resources. waste

For example, in the cell manufacturing process, the accumulation of coating errors, roll alignment errors, and winding errors may cause partially wound cells to be too large to be wound into the shell and cannot be found in time. can only be picked out during assembly

In this process, time delays and errors in the assembly process may cause more waste of manpower and material resources.

[0004] In the existing lithium battery production process, the grabbing manipulator of the winding machine only has the function of transferring the battery cell, but does not have the function of screening. The wound battery cell enters the assembly workshop. The waste of resources during this period includes: due to the rebound phenomenon of the coiled batteries due to the long aging time, the length of cutting needs to be increased; due to the inability to judge intuitively, the pole pieces are exposed forcibly inserted into the shell, which may cause a short circuit of the batteries; Make an intuitive judgment on the oversized battery cells, resulting in transfer, processing, and rework, which causes waste of manpower and affects work efficiency

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