Back to results
US 2014/0251102 A1Published application
Punching apparatus and punching method
AssigneeDenso Corporation
InventorKen KURIKI
Life of this patent
Estimating the term…
Abstract
A punching apparatus includes a holding part for holding a workpiece, a punch having a punching portion at an axial end thereof, the punching portion being configured to be inserted into the workpiece for punching the workpiece. The punching apparatus further includes a guide part supporting the punch so as to be movable in an axial direction of the punch, and a rotating part for rotating the punch around the axial direction of the punch while the punch is away from the workpiece.
Claims8
A punching apparatus comprising:
- a holding part for holding a workpiece;
- a punch including a punching portion at an axial end thereof, the punching portion being configured to be inserted into the workpiece for punching the workpiece;
- a guide part supporting the punch so as to be movable in an axial direction of the punch;
- and
- a rotating part for rotating the punch around the axial direction of the punch while the punch is away from the workpiece.
2 more elements
A method of punching a workpiece comprising:
- an installing step of fixing the workpiece;
- a pressing step of moving a punch in an axial direction thereof to insert a punching portion thereof into the workpiece fixed by the installing step;
- and
- a rotating step of rotating the punch around the axial direction thereof while the workpiece is away from the punch, the rotating step being performed after the installing step and before the pressing step.
1 more element
Dependencies are inferred from the claim text.