This mandrel holds a transmission
gear on a gear cutting machine in a 45 mm dia. hole. The clamping sleeve draws the
part into firm contact with the work locator. Radial and axial true running
accuracy within 0.01 mm. measured on the test part.
KFG/SF sliding jaw mandrel
A 155 mm calibre shell is held on
a lathe in the 120 mm dia. inner contour by means of two concentric
clamping planes and one compensating plane for the lost
head (cutoff) while the complete outer contour of the workpiece is being machined.
HYKS/SF hydraulic expanding mandrel
A copying drum is held in its 180 mm
bore without any fixed locator.
The two internal seats, both ends and the outside diameter are machined on a lathe.
Radial true running accuracy within 0.05 mm, concentricity of the two seats within 0.02 mm.
KFG/SF sliding jaw mandrel
With the aid of sliding jaws and a
cylindrical intermediate sleeve, this mandrel holds a bevel gear in its 45 mm. dia. bore
The mandrel is intended for quick- change applications. Loosening 3 screws permits the
mandrel to be removed or attached via a short taper mounting and bayonet catch arrangement.
The complete outer contour is machined with the bevel gear held on this mandrel.
Hydraulic sliding pin mandrel
Twelve clamping pins compensating
for eccentricities provide additional internal support for a tube centred on the outside diameter by other
devices.
Each clamping pin is operated by a separate piston. Clamping diameter: 155 mm. Clamping stroke per pin: 6 mm.
Hydraulic mandrel gripping a workpiece on the outside diameter
The hydraulic mandrel is mounted on the longitudinal slide of a lathe. The rotating
tool is secured to the lathe spindle. A cylinder liner gripped on its outside
diameter is moved against the rotating tool by the advancing slide and
machined in the bore. The workpiece is gripped on its outer contour by
means of a hydraulically operated plastic sleeve holding the workpiece
with the aid of an intermediate steel sleeve.
![[KFB/SF sleeved mandrel]](mandrel07.jpg)
![[KFG/SF sliding jaw mandrel]](mandrel08.jpg)
![[HYKS/SF hydraulic expanding mandrel]](mandrel09.jpg)
![[KFG/SF sliding jaw mandrel]](mandrel10.jpg)
![[Hydraulic sliding pin mandrel]](mandrel11.jpg)
![[Hydraulic mandrel gripping a workpiece on the outside diameter]](mandrel12.jpg)
