Laser welding tool for new energy resource power battery connecting piece

A laser welding and power battery technology, applied in laser welding equipment, welding equipment, manufacturing tools, etc., can solve problems affecting the quality of laser welding, offset the position of nickel sheets, reduce work efficiency, etc., and achieve high composite efficiency and good product rate , Satisfy welding performance, improve welding quality and efficiency

Inactive Publication Date: 2017-05-10
FIRST NEW ENERGY GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the positioning accuracy of the copper bar and the nickel sheet is very important in the laser welding process, and the positional deviation of the nickel sheet is prone to occur, which affects the quality of laser welding and reduces work efficiency

Method used

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  • Laser welding tool for new energy resource power battery connecting piece
  • Laser welding tool for new energy resource power battery connecting piece
  • Laser welding tool for new energy resource power battery connecting piece

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0025] see figure 1 , image 3 , Figure 5 , Figure 7 , a new energy power battery connecting sheet laser welding tooling of the present invention, including a tooling table 1 and a fixture 2, the tooling table is provided with a fixture positioning block 3, and both sides of the tooling table are provided with a cylinder 4 and a pressure plate 5. The pressure plate is fixed on the head end of the piston rod of the cylinder; the clamp is composed of a bottom plate 6 and a cover plate 7, and the bottom plate is provided with ten rows of tab avoidance grooves 8, and the distribution positions of the tab avoidance grooves and The positions of the lugs on the molded nickel sheet 16 correspond to each other, and laser through holes 9 are arranged between the lug avoidance grooves, and the laser through holes are set correspondingly to the welding parts; The positioning pin 10 is provided with an accommodating groove 11 on the cover plate, and two positioning holes 12 are also p...

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PUM

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Abstract

The invention relates to a laser welding tool for a new energy resource power battery connecting piece. The laser welding tool comprises a tool table and a clamp, wherein a clamp positioning block is arranged on the tool table, air cylinders and press plates are arranged on two sides of the tool table, and the press plates are fixed to the head ends of piston rods of the air cylinders. The clamp consists of a base plate and a cover plate, wherein a plurality of rows of tab avoiding grooves are formed in the base plate, distribution positions of the tab avoiding grooves correspond to the positions of die-sunken nickel piece tabs, and laser transmitting holes are formed among the tab avoiding grooves and correspond to welding positions. Two positioning pins are further arranged on the base plate, an accommodating groove is formed in the cover plate, and two positioning holes are further formed in the cover plate and correspond to the positioning pins. The laser welding tool can accurately position nickel pieces and copper bars and perform firm clamping to ensure that the two parts are fit tightly and have no relative movement, and the welding quality and efficiency are improved.

Description

technical field [0001] The invention relates to auxiliary equipment for laser welding, in particular to a laser welding tool for connecting pieces of new energy power batteries. Background technique [0002] With the worldwide energy shortage and environmental protection requirements, environmentally friendly and energy-saving electric vehicles have become the development direction of the automobile industry. The power source of electric vehicles is new energy power batteries, and new energy power batteries use ternary material cells (18650) In the process of assembling into a PACK package, these batteries need to be assembled into a single module in parallel with the connecting piece. Considering the high development cost of the whole connecting piece, and the high cost of compounding copper bars and nickel sheets in a chemical way, the composite connection The risk factor is high, so the combination of laser welding can simplify operations, reduce development costs and lab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/21B23K26/70
CPCB23K26/21B23K26/702
Inventor 黄芳明
Owner FIRST NEW ENERGY GRP CO LTD
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