Efficient and reliable resistance welding machine head
A reliable resistance welding technology, applied in resistance welding equipment, welding equipment, resistance electrode bases, etc., can solve problems such as high production cost, battery overcurrent, resistance welding virtual welding, etc., to improve welding efficiency and electrode utilization, The effect of saving welding cost and high welding reliability
Inactive Publication Date: 2017-01-11
江西吉开裕新能源科技有限公司
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Problems solved by technology
[0003] At present, resistance welding is generally used in the process of welding connecting pieces of lithium batteries. Due to the unreasonable structure and welding methods of the existing resistance welding devices, in the production process of lithium batteries, the resistance welding is prone to false welding, which will lead to the failure of the whole group. The battery pack is not working properly
For example, its resistance welding electrodes generally use eccentric needles, and the resistance welding device with eccentric needle structure has high requirements on materials, low utilization rate, poor welding effect, and high production cost.
Furthermore, due to the battery overcurrent problem, conventional resistance welding must be welded many times and the weldable area of the positive electrode of the battery is small. Welding effect and quality
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[0011] In order to further understand the technical solutions of the present invention, the present invention will be further described by the following embodiments in conjunction with the accompanying drawings. Such as Figure 1-3 shown. The new efficient and reliable resistance welding machine head of this embodiment includes four collet drive positioners, four electrodes 5, and each electrode is connected to the corresponding electrode collet 4 respectively, and the collet drive positioner includes a piston cylinder 1. Each electrode chuck is correspondingly connected to the piston rod 2 of the corresponding piston cylinder 1 . Its each piston cylinder body is fixedly connected on the frame of corresponding spot welding machine head. The positioning column of the electrode holder is formed by the piston rod.
[0012] In this example, the electrode chuck 4 includes a clamping handle, and the clamping handle is composed of two halves of the clamping arm 4a and the clampin...
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The invention discloses an efficient and reliable resistance welding machine head. The efficient and reliable resistance welding machine head comprises four electrodes, four corresponding electrode clamps and four clamp driving positioners thereof, wherein the electrodes are respectively connected to the corresponding electrode clamps; and the electrode clamps are respectively connected to the corresponding driving positioners in a corresponding manner. The efficient and reliable resistance welding machine head is high in welding efficiency, high in welding reliability, good in effect, high in electrode utilization ratio, low in welding cost and simple and reasonable in structure.
Description
technical field [0001] The invention relates to a battery pack spot welding device. In particular, it relates to an efficient and reliable resistance welding head for cylindrical single battery assemblies. Background technique [0002] In traditional resistance welding, electrically conductive workpieces are heated by an electric current until they melt, creating a common melt that solidifies with a welded connection between the workpieces. Known resistance welding joints are designed for high temperatures and high currents. In most cases, welding also requires that both electrodes of the resistance welding head simultaneously apply welding force to the joint during the welding process. [0003] At present, resistance welding is generally used in the process of welding connecting pieces of lithium batteries. Due to the unreasonable structure and welding methods of the existing resistance welding devices, in the production process of lithium batteries, the resistance weldin...
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IPC IPC(8): B23K11/31
CPCB23K11/312
Inventor 彭金兰邢雄军
Owner 江西吉开裕新能源科技有限公司