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Winding machine grasping manipulator and battery screening method

A technology for grasping manipulators and screening methods, applied in circuits, electrical components, secondary batteries, etc., can solve problems such as affecting work efficiency, short-circuiting of cells, and increasing cutting length, and achieve the effect of improving work efficiency and reducing waste of resources.

Active Publication Date: 2019-11-15
保力新(内蒙古)电池有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Winding machine grasping manipulator and battery screening method
  • Winding machine grasping manipulator and battery screening method
  • Winding machine grasping manipulator and battery screening method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] For batteries with specifications 32, the inner diameter of the battery steel case is D = 31.20mm, d = 0.05mm, and the shell penetration rate is required to be ≤97%.

[0064] First calculate a=31.20×0.97-(26+2)×0.05=28.86mm with m+n=26,

[0065] Then the diameter L range of the cell is: d(m+n)+a<L<d(m+n+2)≤Dλ,

[0066] That is, (n+m)0.05+28.86<L<(n+m+2)×0.05+28.86≤31.20×97%, if m+n≤26, then the detection light is on, and the cell diameter passes the detection;

[0067] If m+n=27, then the maximum shell rate of the battery = [(27+2)×0.05+28.86] / 31.20=97.15%, directly consider rework cutting, when m+n>27, the maximum shell rate of the battery If it is greater than 97%, it does not meet the requirements and needs to be reworked and cut.

Embodiment 2

[0069] For batteries with specifications 26, the inner diameter of the steel case of the battery is D=25.40mm, d=0.05mm, and the shell penetration rate is required to be ≤97%.

[0070] First calculate a=25.40×0.97-(26+2)×0.05=23.24mm with m+n=26,

[0071] Then the diameter L range of the cell is: d(m+n)+a

[0072] That is (n+m)×0.05+23.24

[0073] It is obtained that m+n≤26, then the detection light is on, and the diameter of the cell passes the detection;

[0074] If m+n=27, then the maximum shelling rate of the battery = [(27+2)×0.05+23.24] / 25.40=97.21%, directly consider rework cutting, when m+n>27, the maximum shelling rate of the battery If it is greater than 97%, it does not meet the requirements and needs to be reworked and cut.

Embodiment 3

[0076] For batteries with specifications 18, the inner diameter of the battery steel case is D=17.50mm, d=0.05mm, and the shell penetration rate is required to be ≤97%.

[0077] First calculate a=17.50×0.97-(26+2)×0.05=15.58mm with m+n=26,

[0078] Then the diameter L range of the cell is: d(m+n)+a

[0079] That is (n+m)×0.05+12.08

[0080] It is obtained that m+n≤26, then the detection light is on, and the diameter of the cell passes the detection;

[0081] If m+n=27, then the maximum shell rate of the battery = [(27+2)×0.05+15.58] / 17.50=97.31%, directly consider rework cutting, when m+n>27, the maximum shell rate of the battery If it is greater than 97%, it does not meet the requirements and needs to be reworked and cut.

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Abstract

The invention discloses a grabbing manipulator for a winding machine, including a grabbing manipulator for transferring electric cores, wherein the upper and lower ends of the grabbing manipulator are provided with the same number of laser detection devices arranged at equal intervals, and there is no laser detection device in the middle of the grabbing manipulator. The distance between the laser detection device is set to be less than the product of the inner diameter of the battery steel case and the maximum penetration rate of the battery core; it also includes a digital chip that encodes the received signal of the laser detection device, and receives the coded signal processed by the digital chip for detection and judgment. a single-chip controller, and a detection lamp electrically connected to the single-chip controller. In the present invention, a laser is added to the automatic grasping manipulator of the winding machine, and the photoelectric signal is converted into a digital signal by using a digital chip and a single-chip microcomputer program control to detect its diameter, and the battery core that is too large to be wound can be accurately picked out to ensure All the batteries entering the next process can be put into the shell, which can not only reduce the waste of resources but also improve work efficiency.

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/0587H01M10/48
CPCH01M10/0587H01M10/48Y02E60/10Y02P70/50
Inventor 廖雨清
Owner 保力新(内蒙古)电池有限公司