Electronic Resource
s.l. ; Stafa-Zurich, Switzerland
Solid state phenomena
Vol. 113 (June 2006), p. 465-470
ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
When using programmed machine tools many steps of a shaft are machined in oneoperation. Many shafts are not rigid enough and for the purpose of achieving high accuracy andproductivity it is necessary to use an automatic follow rest and dimension control. The problem iscomplicated by necessity of an automatic reset in an operation from one step of a shaft to the other.The new scheme of a device is proposed in the paper that enables simultaneously to support theshaft being machined and control its dimensions. The work principle of a device is that the shaft issupported in a radial direction by a movable slider. Diameter of the shaft neck is measured by twolevers turning round their axes driven by the movable slider with patterns. The main idea is that atmotion of the slider equal to change of the shaft neck diameter measuring surfaces of levers areconstantly tangent to diametrical surface of the workpiece while the slider is supporting theworkpiece in radial direction, opposite to the cutting force. Dimension of a shaft neck is evaluatedas a sum of motion value of a slider and deviation from tangent of lever measuring surfaces.Theoretical background of principle schemes and the work scheme of a device are presented in thepaper
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/22/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.113.465.pdf
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