Electromagnetic device and method for the geometric rectification of stamped metal parts

Abstract

The invention relates to an electromagnetic device and a method for the geometric rectification of stamped metal parts comprising at least one block having a surface with a final geometry which is intended to be obtained in one side of an area to be rectified of a part, which is positioned between said block and a complementary electromagnetic coil comprising at least one winding configured to generate a magnetic field configured to act on the part and produce its impact against said block, there being a space between each electromagnetic coil and each block not greater than ten times a thickness of the part, with the aim of being able to move the part by the action of the magnetic field.

1 . An electromagnetic device for the geometric rectification of stamped metal parts comprising:
 at least one block configured to contact one side of an area to be rectified of a stamped metal part, the geometry of a surface of said at least one block configured to contact the part coinciding with a desired final geometry in said side of the area to be rectified of the part,   at least one electromagnetic coil configured to be located on a side opposite to said at least one block of said area to be rectified of the part,   at least one embedded winding that comprises each at least one electromagnetic coil, said winding being configured to generate a magnetic field operatively configured to act on the part and produce its impact against the corresponding block,   a space between each at least one electromagnetic coil and each at least one block not greater than ten times the thickness of the part.   
   
   
       2 . An electromagnetic device for the geometric rectification of stamped metal parts according to  claim 1 , wherein each at least one block and each at least one electromagnetic coil are linked to a first base and to a second base. 
   
   
       3 . An electromagnetic device for the geometric rectification of stamped metal parts according to  claim 2 , wherein the first base and the second base comprise moveable closure means. 
   
   
       4 . An electromagnetic device for the geometric rectification of stamped metal parts according to  claim 2 , comprising:
 a first block located in a complementary manner to a first electromagnetic coil comprising a first winding,   a second block located in a complementary manner to a second electromagnetic coil comprising a second winding,   a third block located in a complementary manner to a third electromagnetic coil comprising a third winding arranged perpendicular to the first winding and to the second winding.   
   
   
       5 . An electromagnetic device for the geometric rectification of stamped metal parts according to  claim 4 , wherein the first block, the third block and the second electromagnetic coil are linked to the first base whereas the second block, the first electromagnetic coil and the third electromagnetic coil are linked to the second base. 
   
   
       6 . An electromagnetic device for the geometric rectification of stamped metal parts according to  claim 1 , wherein the area to be rectified of the part ( 1 ) corresponds to virtually the entire surface of said part. 
   
   
       7 . An electromagnetic device for the geometric rectification of stamped metal parts according to  claim 1 , comprising at least one driver consisting of a sheet of a material with a high copper content, located between said at least one electromagnetic coil and the part to be rectified, in order to reduce the energy demands of the device for obtaining a certain geometry in a part to be rectified. 
   
   
       8 . An electromagnetic device for the geometric rectification of stamped metal parts according to  claim 1 , wherein at least one electromagnetic coil comprises a body of synthetic material, said body having at least one surface configured to be located opposite to a side of the part with a geometry corresponding substantially to the desired final geometry in said side of the mentioned area to be rectified of the part. 
   
   
       9 . A method for the geometric rectification of stamped metal parts with a device according to  claim 1 , comprising the following steps:
 a first step comprising to place a stamped part with each area to be rectified operatively located between a block and an electromagnetic coil, said part being conveniently separated from the block which is separated from the complementary electromagnetic coil by a distance not greater than ten times the thickness of the part,   a second step comprising to generate a magnetic field configured to act in the areas to be rectified of the part such that they adopt a required final geometry when the part impacts against each block,   a third step comprising to remove the already rectified part.   
   
   
       10 . A method for the geometric rectification of stamped metal parts according to  claim 9 , comprising an intermediate step, prior to the second step, comprising to place at least one driver between said at least one electromagnetic coil and the part to be rectified. 
   
   
       11 . A method for the geometric rectification of stamped metal parts according to  claim 10 , wherein the driver comprises a sheet of material with a high copper content.