Unlock instant, AI-driven research and patent intelligence for your innovation.

Screw actuated press unit

A pressing unit and actuating technology, applied in the direction of presses, stamping machines, manufacturing tools, etc., can solve the problems that it is difficult to obtain the rotation locking function of the nut and the housing, and it is difficult to obtain free movement joints, etc.

Active Publication Date: 2014-06-04
ATLAS COPCO INDAL TECHN AB
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The problem with pressing units of the type described above is that it is very difficult to obtain a good rotational lock between the nut and the housing, either directly between the nut itself and the housing, or via a thrust rod in rotational locking engagement with the housing Function
Since the sliding contact surfaces between the nut and the keyway in the housing inevitably require small movements between them to ensure unblocked operation and to carry some lubricant, between the nut and the keyway in the housing Difficult to get free motion articulation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Screw actuated press unit
  • Screw actuated press unit
  • Screw actuated press unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The pressing unit shown in the drawings comprises a main housing 10 to which is attached an electric swivel motor 11 with means for connecting between the pressing unit and a separate control unit (not shown) Connector 12 for multi-core cable power transmission and control signal transmission. In the housing 10 there is a rotationally journalled actuation screw 14 coupled to the motor 11 via a reduction gear 15 . The reduction gear 15 is located at the rear end wall 13 of the housing 10 and includes a spur gear 16 firmly attached to the screw 14 . The rear end of the screw 14 is supported by three ball bearings 17, 18 and 19 of the angular contact type for transferring the radial and axial forces of the screw 14 from the screw 14 to the case 10. The bearings 17 , 18 and 19 are supported in a universal mounting sleeve 20 which is secured to the rear end wall 13 by a thin-walled neck portion 21 . On the neck portion 21, which is elastically deformable in response to a ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A screw actuated press unit for mounting parts with press fit, comprises 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).

Description

technical field [0001] The present invention relates to a screw-actuated pressing unit intended to combine parts by press-fitting and comprising a housing with a motor-driven actuating screw, a non-rotating nut and a push rod connected to the nut to Joined by nuts exerting a linear thrust on the multiple parts. Background technique [0002] The problem with pressing units of the type described above is that it is very difficult to obtain a good rotational lock between the nut and the housing, either directly between the nut itself and the housing, or via a thrust rod in rotational locking engagement with the housing Function. Different types of rotation locking arrangements have been employed in previous press units of the above type, such as a splined connection between the thrust rod and the housing, by which longitudinal movement of the thrust rod is permitted, but not rotation . A disadvantage of this type of rotation locking arrangement is that a relatively long enga...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B30B1/18F16H25/24F16C29/12
CPCB30B1/18F16H2025/204F16H25/24F16C29/123F16H25/20Y10T74/18648B30B1/181
Inventor K·T·M·埃里克森
Owner ATLAS COPCO INDAL TECHN AB
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com