Invention Grant
- Patent Title: Press-forming apparatus
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Application No.: US17805457Application Date: 2022-06-04
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Publication No.: US12076774B2Publication Date: 2024-09-03
- Inventor: Hideaki Hamada , Mitsuo Saitoh , Naoki Nojiri
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP 21105877 2021.06.25
- Main IPC: B21D24/10
- IPC: B21D24/10 ; B21D22/20 ; B30B15/00 ; B30B15/26

Abstract:
A press-forming apparatus includes a punch, a die having an inclined surface, and a die holding plate. A blank holder has a holding surface, and a die load sensor detects a load in a pressing direction, a load in a first direction perpendicular to the pressing direction, and a load in a second direction perpendicular to the first direction. A controller calculates a normal force of the die based on the loads in the pressing direction, in the first direction, and in the second direction. The loads are detected by the die load sensor, and the controller calculates the amount of correction of clearance between the die and the blank holder based on the normal force of the die. The first driver moves the die in the pressing direction based on the amount of correction of clearance, and a second driver drives the punch in the pressing direction.
Public/Granted literature
- US20220410241A1 PRESS-FORMING APPARATUS Public/Granted day:2022-12-29
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