Process and apparatus for the inductive hardening of elongate workpieces
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United States of America Patent
Stats
-
Jul 19, 1994
Grant Date -
N/A
app pub date -
Nov 12, 1992
filing date -
Dec 11, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a process and apparatus for the hardening of elongate workpieces by means of an inductor 19. The apparatus comprises a rotary ring 3 mounted to rotate around a horizontal axis in a hardening basin 1 and having a number of retaining devices 11 by means of which each of individual workpieces 16 is retained horizontally and rotatably around its longitudinal axis. To improve the hardening result and increase the degree of automation of the apparatus and process, associated with each retaining device 11 for connection to a central driving shaft 2 is an adjustable clutch-brake unit 7, and the retaining device 11 is drivable by the driving shaft 2 in a first position, is uncoupled from the driving shaft 2 and freely rotatable in a second position and is braked in relation to the rotary ring 3 in a third position. By these steps each of the workpieces 16 disposed on the rotary ring 3 can perform rotary movements independently of one another.
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