Invention Application
- Patent Title: DUAL FORCE RAM DRIVE FOR A SCREW PRESS
- Patent Title (中): 用于螺丝印刷的双力式RAM驱动器
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Application No.: PCT/US2008/082636Application Date: 2008-11-06
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Publication No.: WO2010059147A2Publication Date: 2010-05-27
- Inventor: PATTON, Roger B.
- Applicant: PEM MANAGEMENT, INC. , PATTON, Roger B.
- Applicant Address: 103 Foulk Road Suite 108 Wilmington, Delaware 19803 US
- Assignee: PEM MANAGEMENT, INC.,PATTON, Roger B.
- Current Assignee: PEM MANAGEMENT, INC.,PATTON, Roger B.
- Current Assignee Address: 103 Foulk Road Suite 108 Wilmington, Delaware 19803 US
- Agency: GORE, Gregory J.
- Priority: US60/972,447 20070914
- Main IPC: B30B1/08
- IPC: B30B1/08 ; B30B13/00
Abstract:
Precise motion of the ram of a fastener press is controlled by high torque and low torque motors for high speed/low force and high force pressing of the ram by the ram, respectively. The high torque motor means drive passes through a bidirectional overrunning clutch. The clutch is controlled by the relative motion of the two separate motor drive speeds of which are regulated by a controller. The clutching motion is therefore controlled only by the relative speed of its drive versus driven components. This provides an extremely smooth and responsive transition between high speed/low force and low speed/high force operation of the ram so that the pressing cycle can be as fast and efficient as possible.
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