Title:
SCREW ACTUATED PRESS UNIT
Document Type and Number:
WIPO Patent Application WO/2013/050267
Kind Code:
A1
Abstract:
A screw actuated press unit for mounting parts with press fit, comprising a casing (10), an actuating screw (14) rotationally journalled in the casing (10) and coupled to a rotation motor (11), a nut assembly (22) cooperating with the actuating screw (14), a thrust rod (24) rigidly connected to the nut assembly (22) and extending out of the casing (10) for connection to a work piece, and a locking device (28-33) effective to rotationally lock the nut assembly (22) to the casing (10) at rotation of the actuation screw (14), wherein the lock device (28-33) comprises three roller studs (28-30) mounted on and radially extending from the nut assembly (22) and arranged to guidingly cooperate with two parallel guide rails (32,33) at the edges of an axially extending slot (31) in the casing (10). The roller studs (28,29,30) are spring biased in opposite directions into contact with the guide rails (32,33) so as to eliminate rotational play between the nut assembly (22) and the casing (10).
Inventors:
ERIKSSON KJELL THOMAS MARTIN (SE)
Application Number:
PCT/EP2012/068749
Publication Date:
April 11, 2013
Filing Date:
September 24, 2012
Export Citation:
Assignee:
ATLAS COPCO IND TECH AB (SE)
International Classes:
B30B1/18; F16C29/12; F16H25/24
Foreign References:
| JP2001099148A | 2001-04-10 | |||
| US20100206104A1 | 2010-08-19 | |||
| US20090044646A1 | 2009-02-19 | |||
| DE2461773A1 | 1976-07-08 |
Other References:
None
Attorney, Agent or Firm:
EKEBERG, Lars (Patent Department, Stockholm, SE)
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Claims:
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