A process for forming a battery placement rack for a power-assisted electric vehicle
A technology of electric vehicle battery and forming process, which is applied in the field of production of electric vehicle battery racks, which can solve the problems of insufficient strength of the frame, reduction of its own strength, and increased processing costs, and achieve good mechanical properties, small deformation, and low processing costs Effect
Active Publication Date: 2022-02-22
明达铝业科技(太仓)有限公司
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Problems solved by technology
This processing method has great disadvantages: 1) After the pipe material is grooved, its own strength is greatly reduced, resulting in insufficient strength of the frame, and safety problems are prone to occur when the electric moped is used; 2) The pipe material is slotted, increasing CNC processing costs, while affecting product strength, pipe material deformation after welding, increase the cost of correction
Method used
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Embodiment 1
[0031] Such as figure 1 is a flowchart of the present invention;
[0032] Such as figure 2 It is a three-dimensional view of the first shell and the second shell stamped and formed in step 2;
[0033] Such as image 3 Stereoscopic view of the finished product for the electric vehicle battery rack
[0034] Forming process step of the present invention is as follows:
[0035] Step 1: According to the design requirements, punch the sheet metal raw material into a specified shape;
[0036] Step 2: Use sheet metal stamping forming technology to stamp the products punched out in step 1 to form the first shell 1 and the second shell 2 respectively; the first shell 1 and the second shell 2 have the same structure , and is a symmetrical piece, including a lower fork 11 and a lower tube 12, and the lower fork 11 and the lower tube 12 are integrally formed;
[0037] Step 3: The first shell 1 and the second shell 2 are arranged opposite to each other and welded by friction stir wel...
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A forming process for a power-assisted electric vehicle battery rack, including step 1: punching sheet metal raw materials into a specified shape according to design requirements; step 2: using sheet metal stamping forming technology to stamp the product punched out in step 1, Respectively form a first shell and a second shell; the first shell and the second shell have the same structure and are symmetrical parts, including a lower fork and a lower tube, and the lower fork and the lower tube are integrally formed; Step 3 : The first shell and the second shell are arranged oppositely, and welded by friction stir welding. After the first shell and the second shell are welded, a battery installation inlet is provided at the junction of the lower fork and the lower tube; Step 4: In the lower Drill the battery box fixing hole under the tube, drill the controller fixing hole on the upper part of the front end of the down tube, and drill the wire holes on both sides below the front end of the down tube; Step 5: Weld the head tube to the end of the down tube; according to the needs of the frame, it can be matched with the middle tube , upper fork or upper tube to form a standard electric frame.
Description
technical field [0001] The invention relates to the field of production of battery racks for electric vehicles, in particular to a forming process for power-assisted electric vehicle battery racks. Background technique [0002] At present, there are two structural forms for the tram placement of electric mopeds, one is an external battery, and the other is a built-in battery. Because the built-in battery battery car has a simple structure and a beautiful appearance, it is more and more popular among people. [0003] Most of the built-in batteries are built into the down tube of the electric moped, which means that a notch needs to be provided above or below the down tube to facilitate access to the battery. This processing method has great disadvantages: 1) After the pipe material is grooved, its own strength is greatly reduced, resulting in insufficient strength of the frame, and safety problems are prone to occur when the electric moped is used; 2) The pipe material is slo...
Claims
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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 郑博文
Owner 明达铝业科技(太仓)有限公司