Cylindricity < 0.5 µm
A 24 cavity injection mould for lenses for mobile phones had been jig ground on a RHP500 machine with highest precision possible. This application became especially challenging, because the holes had only 8 mm diameter, the area to be jig ground began 15 mm below the mould surface and reached a depth of 45 mm. In consequence, the holes had to be ground cylindrical with highest precision on a total length of 30 mm. The requested cylindricity of 0.5 µm was achieved on all 24 cavities.
Milling and Grinding
Cutting or grinding tools with up to 200 mm diameter may automatically be changed into the main spindle by a newly developed tool changer, which is placed below the bridge of the machine. For each tool an adjusted cooling supply is changed as well, which allows perfect cooling where needed for the cutting process.
Machining with a large grinding wheel with adjusted, likewise automatically changed cooling supply for the grinding process with large coolant volume
Röders is partner of umati initiative
Röders is partner of the umati initiative of the German machine tool association VDW (umati = universal machine tool interface).
Moulds for liquid silicone rubber (LSR)
Parting surfaces of injection moulds for liquid silicone rubber (LSR) are machined with high precision to final dimensions. No rework is necessary. The moulds are directly used for flash-free production.
HEIDENHAIN®# and ISO-Code (G‑Code)
For minimizing training periods and facilitating the change of operators among machines with different NC-Controls, Röders machines may be programmed in HEIDENHAIN®#-NC-Code (with limited scope) or ISO-Code (G‑Code). The NC-Program is created with simple macros at the control. Operators knowing the NC-commands in the respective code do not need extra training.
#Heidenhain is the registered trade mark of the Dr. Johannes Heidenhain GmbH
Reflector, material ELMAX 58 HRC
Machining results:
Precision +/- 1 µm
Surface quality Ra 0.010 µm
New possibilities in the watch industry
The combination of high precision air bearing spindles running up to 90000 rpm with the linear motor direct drive technology of the Röders HSC machines allow for up to now unknown qualities in the watch industry. On the exhibition EPHJ in Geneva specialists were convinced of the superior quality directly at the machine. With the long-standing competence of Röders in automation the machine may be adapted to a highly efficient manufacturing process at the customer.