Swing clamp

US4351516A · kind A · utility

Assignee

• Maschinenfabrik HILMA GmbH · DE

Inventors

• Metin Ersoy · Eltville am Rhein, DE
• Albrecht Weber · Hilchenbach, DE

Key dates

• Filing date: Jan 23, 1981
• Grant date: Sep 28, 1982
• Expiry date: Jan 23, 2001

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B25B5/062
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A hydraulically actuatable swing clamp, having a piston arranged within a housing, the piston rod of which extends in sealed manner out of the housing and carries a clamping arm, and which, in addition to an axial clamping movement, carries out a turning movement corresponding to a guide device, the turning movement effecting a swinging of the clamping arm, the guide device comprising a control bolt extending into the piston and being arranged normally non-rotatably on the housing, and at least two pairs of control curves, formed in a guide surface between the control bolt and the piston, and a guide member arranged on the piston or control bolt extending into the control curve. The guide member comprises at least two diametrically opposite and axially staggered guiding members. Each of the pairs of control curves comprises parallel extending axial sections adapted for pure clamping movement of the clamping arm and a left curve section for left-swinging rotation of the clamping arm in cooperation with said guide member, and a right curve section for right-swinging rotation of the clamping arm in cooperation with the guide member, the curve sections adapted for the swinging and simu…