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:
Dec. 19, 2023
Filed:
Nov. 24, 2020
Dajun Zhou, Troy, MI (US);
Kaiping LI, Shelby Township, MI (US);
Robert D Miller, Lake Orion, MI (US);
Richard J Siemen, Shelby Township, MI (US);
Yongiun Zhou, Rochester Hills, MI (US);
Dajun Zhou, Troy, MI (US);
Kaiping Li, Shelby Township, MI (US);
Robert D Miller, Lake Orion, MI (US);
Richard J Siemen, Shelby Township, MI (US);
Yongiun Zhou, Rochester Hills, MI (US);
FCA US LLC, Auburn Hills, MI (US);
Abstract
A stamping machine configured to shape a sheet material including an upper binder including first teeth, a lower binder including second teeth, and a punch. A first cylinder is positioned between a lower binder and a support surface. A second cylinder is positioned between the upper binder and the lower binder. A cushion pin is positioned at the support surface that is configured to contact and control movement of the lower binder relative to the punch. A force exerted by the second cylinder is greater than that exerted by the first cylinder, and the force exerted by the cushion pin is greater than that exerted by the second cylinder. The first and second cylinders and the cushion pin are used to control when the first and second teeth are permitted to engage the sheet material, which assists in preventing or minimizing spring back of the sheet material through post-stretching.