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- Translation Stages Guide
Stages used for positioning in X, Y
and Z directions (in 3-dimensional plane).
Suitable for various purposes including optical experiments for research and development and assembly in systems.
In addition, low friction and almost no differential slip are suitable for minute feeding.
Aluminum body offers light-weight.
Highly stable due to face-fitting guide. Compact design is ideal for assembly in systems or fixing in confined spaces.
These products are developed based on Sigma Koki’s original processing technology.
The four-array contact structure achieves high load capacity and high stiffness (13 times stiffer than the V groove)
As shown in Fig-1, ball guides are machined across the arcs so that they have R groove structure and good contact with a ball allowing stable load capacity against the load in the directions where contact with the ball occurs frequently.
Long life and free of maintenance
Fig-2 shows the pressure distribution of the R groove and the flat surface. As shown in the figure, pressure exerted on the R groove is dispersed and does not reach inside. Thus, metal fatigue and wear are reduced.
The integral (simultaneous) machining achieves high precision
(straightness: 0.7 µm or lower)
As shown in Fig-3, the top and bottom plates are integrally and simultaneously machined using an originally devised machining jig to minimize respective machining errors. That is, to maintain high precision, these plates are machined in virtually the same state as when a ball is inside.
Reduction in the number of parts enables low profiling
Fig-4 shows a comparison of thickness of a crossed roller stage and a ball guide stage.
The integration of the guides into the top and bottom plates allows low profiling
of the ball guide stage virtually the same state as when a ball is inside.
* The TSDT series further reduces the stage thickness to 10mm.