| Core
Technologies |
Toshiba Machine has been grappled with ultra high precision machining since 1975. Machining accuracy required in this industrial field is rising to nanometer size from sub-micrometer. To realize nanometer accuracy in processes of machining and grinding, engineering ability, skilful technologies and know-how covering wide range for machine structure, mechanical element, control, measuring and evaluation, etc. are indispensable.
This division is continuously accumulating higher technologies and know-how regarding ultra high precision machining and making an effort to answer speedily to needs from customers being in the vanguard of new era. |
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Scraping & Lapping
Technology |
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Reference standard device and main parts
of machines such as high precision surface plate and square gage
that have undergone scraping and lapping process by a skilled heat
refinement technician are vital to high precision machines. |
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High
Precision Aerostatic Bearing Spindle |
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With the combination of aerostatic bearing
and a high performance electric motor, high precision and high speed
performance are realized simultaneously with longevity. Supports
high precision machining and high speed machining as an energy saving
main unit. Moreover, it is also sold individually as a spindle unit. |
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High Precision Table Type Aerostatic Bearing Spindle |
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A Turning and Indexing Table supported
by aerostatic bearings, this is a long life spindle that can be equipped
in a high precision machine with the purpose of high precision machining.
Moreover, it can be used in a wide variety of operations as an attachment
such as high precision parts machining and measuring. |
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High Precision V-V
Slide Bearing Guide Way |
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Due to an excellent scraping technique
and durable machine structure, the linear guide way with this system
is the ideal guide way in terms of precision, stiffness, movement,
and stability. It is an essential factor of mainstay technology as
a guide way of high precision machine tools, measuring equipments,
etc. |
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High Precision Aerostatic
Bearing Guide Way |
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A linear guide way supported by aerostatic
bearings makes the attainment of a high motion performance of a motion.
In addition of the features of a low friction coefficient and longevity,
because there are no direct contact, abrasion powder does not occur
and a high environmental protection is achieved. Comparing to other
bearing systems, because stiffness and load allowance are low, it
is used in machines and measurement equipment of low load fluctuation,
etc. |
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High
Precision Roller Bearing Rotary Table |
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This rotary table is supported by a rigid,
highly precise roller bearing. It deals well with unbalanced loads,
and realizes a competitive high precision with an aerostatic bearing
table. (0.02 μm/S.P.A.M (*))
(*) S.P.A.M. is a measurement method via the Single Point Asynchronous
Error Motion. |
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Linear
Motor Drive Technology |
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The coreless linear motor and linear
motor with cores have both been successfully completed as products.
Via original technology developed by our company, the core linear
motor drive system has especially realized a high precision and high
responsiveness that is strongly stabilized against disturbance factors. |
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High
Speed / High Precision Control Technology and Linear Motor Drive
Technology |
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Those technologies have realized a world
leading 1nm scale feedback control. Moreover, it establishes linear
motor with cores high gain and high precision drive technology, and
realizes stable cutting and grinding processes as well as high form
accuracy and surface accuracy. |
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High Precision V-V Roller Guide Way with Non-Circular System |
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The V-V roller guide way with non-circular
system configured with a strictly selected high precision needle
minimizes friction, slight undulation is kept under 20 nm, and high
positioning accuracy is combined with accurate motion performance.
In the vertical axis, preload is given via aerostatic. This is a
mainstay technology supporting the high speed, high precision and
high rigidity that are demanded as a basic function of high precision
machines. |
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High
Precision Optical Glass Elements Heating / Molding Technology |
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High speed-uniform heating via an infrared
lamp and high positioning accuracy of a mold are realized. Combined
with pressing force control, heating / cooling temperature control,
and high precision mold manufacturing technology, this have realized
a reduction of a post processing such as polishing, etc. on the production
process of high precision glass elements such as asphere glass lenses,
etc. |
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High
Precision Optical Glass Elements Molding Control Technology |
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Original company made CNC system is equipped,
the individual process settings of heating, pressing, positioning,
and cooling are easy to operate as well as monitorable, and high
quality molding with a high level of reproducibility that is easy
for an operator is realized. |
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High
Precision Optical Glass Elements Mold Manufacturing Technology |
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With plastic mold manufacturing technology
accumulated over many years for injection molding machines as a base,
the strict selection of mold materials optimal for glass molding
and coating technology development has realized high quality and
longevity for molds. Moreover, due to the high precision machining
and related application-engineering made possible by the Aspheric & Free-form
Surface Grinder ULC/ULG series, the leading product of this division,
molded products with high precision and sub-micrometer scale form
have been realized, and high praise is being garnered from customers. |
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