Electric servo press machine

摘要

An electric servo press machine is configured to convert a rotation of an electric servomotor into a reciprocating linear motion of a slide to perform press working on a workpiece. The machine includes a clutch mechanism interposed in a power transmission path between the servomotor and the slide, and a brake mechanism for applying a brake onto the slide under a disconnected state in which the servomotor and the power transmission path are decoupled from each other by the clutch mechanism. The machine brings the clutch mechanism into the disconnected state and applies the brake onto the slide upon an immediate stop request, and recovers from immediate stop under a state in which a phase shift between the servomotor and the power transmission path ranging from the clutch mechanism in the disconnected state to the slide is eliminated under a connected state of the clutch mechanism.

主权项

1. An electric servo press machine, which converts a rotation of an electric servomotor into a reciprocating linear motion of a slide through an intermediation of a power transmission/conversion mechanism, and utilizes the reciprocating linear motion of the slide to perform press working on a workpiece,
the electric servo press machine comprising:
a clutch mechanism interposed in a power transmission path between the electric servomotor and the slide; anda brake mechanism capable of applying a brake onto a motion of the slide under a disconnected state in which the electric servomotor and the power transmission path are decoupled from each other by the clutch mechanism, the electric servo press machine being configured to:
bring the clutch mechanism into the disconnected state and apply the brake onto the motion of the slide by the brake mechanism in response to an immediate stop request; andrecover from immediate stop under a state in which a phase shift between the electric servomotor and the power transmission path ranging from the clutch mechanism in the disconnected state to the slide is eliminated under a connected state of the clutch mechanism.