US 7,523,699 B2
Linear motor mounted press machine and method for controlling linear motor mounted press machine
Hiroichi Sakamoto, Inuyama (Japan)
Assigned to Murata Kikai Kabushiki Kaisha, Kyoto-shi (Japan)
Filed on Aug. 21, 2007, as Appl. No. 11/842,265.
Claims priority of application No. 2006-223780 (JP), filed on Aug. 21, 2006.
Prior Publication US 2008/0041241 A1, Feb. 21, 2008
Int. Cl. B30B 1/10 (2006.01)
U.S. Cl. 100—43  [100/35; 100/281; 72/451; 83/630; 310/12] 7 Claims
OG exemplary drawing
 
1. A linear motor mounted press machine comprising: a boosting mechanism having an output portion that performs a rectilinear reciprocating operation, a first press driving source having an output shaft coupled to an input portion of the boosting mechanism, a linear motor having an output shaft serving as a second press driving source that drives a press tool forward and backward, and a coupling switching mechanism that releasably couples the output shaft of the linear motor and the output portion of the boosting mechanism together,
wherein said coupling switching mechanism comprises a coupling member that is removably inserted into a hole formed in the output shaft of said linear motor and into a hole formed in the output portion of said boosting mechanism, and an insertion and removal driving source that performs operations of inserting and removing the coupling member.