Electromagnetic pulse force and mechanical force composite cold pressure welding device
A technology of mechanical force and pulse force, which is applied in the field of cold-pressing welding device combined with electromagnetic pulse force and mechanical force, can solve the problem of no conclusive research on sheet materials, and achieve the effect of reducing springback and improving work efficiency.
Inactive Publication Date: 2014-11-05
XI AN JIAOTONG UNIV
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Problems solved by technology
The Massachusetts Institute of Technology has done a lot of research on the electromagnetic welding of pipes, but there is no conclusive research on the electromagnetic welding of sheets.
Method used
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Embodiment Construction
[0016] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0017] refer to figure 1 , a cold pressure welding device combining electromagnetic pulse force and mechanical force, comprising a mechanical stamping mechanism and an electromagnetic auxiliary mechanism, and an electromagnetic auxiliary mechanism is arranged below the mechanical stamping mechanism;
[0018] The mechanical stamping mechanism includes a servo motor 1, the output shaft of the servo motor 1 is equipped with a flywheel 2, the flywheel 2 is connected to the upper part of the lead screw 4 through the clutch 3, and the lower part of the lead screw 4 is connected to the punch 5;
[0019] The electromagnetic auxiliary mechanism includes a magnetic collector 8, and an electromagnetic coil 9 is arranged below the magnetic collector 8;
[0020] refer to figure 2 , the electromagnetic coil 9 is connected into a loop through the switch K and the load resistor R...
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The invention relates to an electromagnetic pulse force and mechanical force composite cold pressure welding device. The electromagnetic pulse force and mechanical force composite cold pressure welding device comprises a mechanical stamping mechanism and an electromagnetic auxiliary mechanism arranged below the mechanical stamping mechanism, wherein the mechanical stamping mechanism comprises a servo motor; an output shaft of the servo motor is provided with a fly wheel; the fly wheel is connected with the upper part of a screw rod through a clutch; the lower part of the screw rod is connected with a plunger chip; the electromagnetic auxiliary mechanism comprises a magnetic trap; an electromagnetic coil is arranged below the magnetic trap and is connected with a load resistor through a switch to form a loop; the loop is connected with input voltage through a transformer; and a capacitor is connected with the load resistor in parallel. The electromagnetic pulse force and mechanical force composite cold pressure welding device combines stamping and electromagnetic forming and assists the stamping force in obtaining a joint by the electromagnetic force, so working efficiency can be improved, pits and rebound in the stamping process can be reduced, energy is saved and emission is reduced, and safety and availability of connection of dissimilar metal and metal with different thicknesses can be guaranteed.
Description
technical field [0001] The invention relates to the field of cold pressure welding of metal plates, in particular to a cold pressure welding device combining electromagnetic pulse force and mechanical force. Background technique [0002] Covering parts for automobiles and airplanes not only need to have a certain strength and high comprehensive performance, but also consider the energy saving and weight reduction of automobiles and airplanes. In order to achieve energy saving and weight reduction of automobiles, in addition to choosing the right material, it is also necessary to choose the right connection technology. During the operation of automobiles and airplanes, in addition to energy saving and emission reduction, safety must be paid more attention to. For this goal, people have adopted almost strict requirements on the selection of materials, and at the same time choose the connection method with the best comprehensive performance. [0003] With people's new requirem...
Claims
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IPC IPC(8): B23K20/00B23K101/16
Inventor 赵升吨徐凡林文捷张琦范淑琴韩晓兰
Owner XI AN JIAOTONG UNIV