The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 07, 2023
Filed:
May. 11, 2018
Gehring E-tech Gmbh, Ostfildern, DE;
Pier Vai, Pompiano, IT;
Angiolino Benedetti, Nuvolento, IT;
Crescini Silvano, Calvagese Della Riviera, IT;
Gehring e-tech GmbH, Ostfildern, DE;
Abstract
The invention relates to a method and a device for deforming a U-shaped electric conductor into a hairpin which can be used to produce a bar winding of an electric machine. Prior to the deforming process, the electric conductor has two parallel limbs which are integrally connected together by means of a connection limb, and the three limbs are arranged on an imaginary plane. According to the invention, the two parallel limbs are first clamped in a respective clamping device, the first limb together with the first clamping device is then held in place, the second limb is then moved away from the first limb on a circular path, thereby stretching the connection limb, and a deformation section of the electric conductor is simultaneously or subsequently moved on a guide surface of a twisting guide element, wherein the guide surface protrudes radially beyond the circular path.